feat: Overhaul font format into CrossPoint font

## Summary

Extracted some changes from
https://github.com/crosspoint-reader/crosspoint-reader/pull/500 to make
reviewing easier

This PR adds HAL (Hardware Abstraction Layer) for display and GPIO
components, making it easier to write a stub or an emulated
implementation of the hardware.

SD card HAL will be added via another PR, because it's a bit more
tricky.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? **NO**

.clangd

@@ -0,0 +1,2 @@
+CompileFlags:
+    Add: [-std=c++2a]

.github/FUNDING.yml

@@ -0,0 +1,2 @@
+github: [daveallie]
+ko_fi: daveallie

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,54 @@
+name: Bug Report
+description: Report an issue or unexpected behavior
+title: "Short, descriptive title of the issue"
+labels: ["bug", "triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to report this bug! Please fill out the details below.
+
+  - type: input
+    id: version
+    attributes:
+      label: Affected Version
+      description: What version of the project/library are you using? (e.g., v1.2.3, master branch commit SHA)
+      placeholder: Ex. v1.2.3
+    validations:
+      required: true
+
+  - type: textarea
+    id: bug-description
+    attributes:
+      label: Describe the Bug
+      description: A clear and concise description of what the bug is.
+      placeholder:
+    validations:
+      required: true
+
+  - type: textarea
+    id: steps-to-reproduce
+    attributes:
+      label: Steps to Reproduce
+      description: Clearly list the steps necessary to reproduce the unexpected behavior.
+      placeholder: |
+        1. Go to '...'
+        2. Select '...'
+        3. Crash
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected-behavior
+    attributes:
+      label: Expected Behavior
+      description: A clear and concise description of what you expected to happen.
+    validations:
+      required: true
+
+  - type: textarea
+    id: logs
+    attributes:
+      label: Relevant Log Output/Screenshots
+      description: If applicable, error messages, or log output to help explain your problem. You can drag and drop images here.
+      render: shell

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,18 @@
+## Summary
+
+* **What is the goal of this PR?** (e.g., Implements the new feature for file uploading.)
+* **What changes are included?**
+
+## Additional Context
+
+* Add any other information that might be helpful for the reviewer (e.g., performance implications, potential risks, 
+  specific areas to focus on).
+
+---
+
+### AI Usage
+
+While CrossPoint doesn't have restrictions on AI tools in contributing, please be transparent about their usage as it 
+helps set the right context for reviewers.
+
+Did you use AI tools to help write this code? _**< YES | PARTIALLY | NO >**_

.github/workflows/ci.yml

@@ -0,0 +1,37 @@
+name: CI
+'on':
+  push:
+    branches: [master]
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - uses: actions/setup-python@v6
+        with:
+          python-version: '3.14'
+
+      - name: Install PlatformIO Core
+        run: pip install --upgrade platformio
+
+      - name: Install clang-format-21
+        run: |
+          wget https://apt.llvm.org/llvm.sh
+          chmod +x llvm.sh
+          sudo ./llvm.sh 21
+          sudo apt-get update
+          sudo apt-get install -y clang-format-21
+
+      - name: Run cppcheck
+        run: pio check --fail-on-defect low --fail-on-defect medium --fail-on-defect high
+
+      - name: Run clang-format
+        run: PATH="/usr/lib/llvm-21/bin:$PATH" ./bin/clang-format-fix && git diff --exit-code || (echo "Please run 'bin/clang-format-fix' to fix formatting issues" && exit 1)
+
+      - name: Build CrossPoint
+        run: pio run

.github/workflows/pr-formatting-check.yml

@@ -0,0 +1,26 @@
+name: "PR Formatting"
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - reopened
+      - edited
+
+permissions:
+  statuses: write
+
+jobs:
+  title-check:
+    name: Title Check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@ec9f2d5744a09debf3a187a3f4f675c53b671911 # v2.13.0
+        with:
+          egress-policy: audit
+
+      - name: Check PR Title
+        uses: amannn/action-semantic-pull-request@v6
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yml

@@ -0,0 +1,41 @@
+name: Compile Release
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build-release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - uses: actions/cache@v5
+        with:
+          path: |
+            ~/.cache/pip
+            ~/.platformio/.cache
+          key: ${{ runner.os }}-pio
+
+      - uses: actions/setup-python@v6
+        with:
+          python-version: '3.14'
+
+      - name: Install PlatformIO Core
+        run: pip install --upgrade platformio
+
+      - name: Build CrossPoint
+        run: pio run -e gh_release
+
+      - name: Upload Artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: CrossPoint-${{ github.ref_name }}
+          path: |
+            .pio/build/gh_release/bootloader.bin
+            .pio/build/gh_release/firmware.bin
+            .pio/build/gh_release/firmware.elf
+            .pio/build/gh_release/firmware.map
+            .pio/build/gh_release/partitions.bin

.gitignore

@@ -1,3 +1,11 @@
 .pio
 .idea
 .DS_Store
+.vscode
+lib/EpdFont/fontsrc
+*.generated.h
+.vs
+build
+**/__pycache__/
+/compile_commands.json
+/.cache

README.md

@@ -6,7 +6,7 @@ Built using **PlatformIO** and targeting the **ESP32-C3** microcontroller.
 CrossPoint Reader is a purpose-built firmware designed to be a drop-in, fully open-source replacement for the official 
 Xteink firmware. It aims to match or improve upon the standard EPUB reading experience.
 
-![](./docs/cover.jpg)
+![](./docs/images/cover.jpg)
 
 ## Motivation
 
@@ -23,20 +23,52 @@ CrossPoint Reader aims to:
 
 This project is **not affiliated with Xteink**; it's built as a community project.
 
-## Features
+## Features & Usage
 
-- [x] EPUB parsing and rendering
+- [x] EPUB parsing and rendering (EPUB 2 and EPUB 3)
+- [ ] Image support within EPUB
 - [x] Saved reading position
-- [ ] File explorer with file picker
+- [x] File explorer with file picker
   - [x] Basic EPUB picker from root directory
   - [x] Support nested folders
   - [ ] EPUB picker with cover art
-- [ ] Image support within EPUB
-- [ ] Configurable font, layout, and display options
-- [ ] WiFi connectivity
-- [ ] BLE connectivity
+- [x] Custom sleep screen
+  - [x] Cover sleep screen
+- [x] Wifi book upload
+- [x] Wifi OTA updates
+- [x] Configurable font, layout, and display options
+  - [ ] User provided fonts
+  - [ ] Full UTF support
+- [x] Screen rotation
 
-## Getting Started
+Multi-language support: Read EPUBs in various languages, including English, Spanish, French, German, Italian, Portuguese, Russian, Ukrainian, Polish, Swedish, Norwegian, [and more](./USER_GUIDE.md#supported-languages).
+
+See [the user guide](./USER_GUIDE.md) for instructions on operating CrossPoint. 
+
+## Installing
+
+### Web (latest firmware)
+
+1. Connect your Xteink X4 to your computer via USB-C
+2. Go to https://xteink.dve.al/ and click "Flash CrossPoint firmware"
+
+To revert back to the official firmware, you can flash the latest official firmware from https://xteink.dve.al/, or swap
+back to the other partition using the "Swap boot partition" button here https://xteink.dve.al/debug.
+
+### Web (specific firmware version)
+
+1. Connect your Xteink X4 to your computer via USB-C
+2. Download the `firmware.bin` file from the release of your choice via the [releases page](https://github.com/daveallie/crosspoint-reader/releases)
+3. Go to https://xteink.dve.al/ and flash the firmware file using the "OTA fast flash controls" section
+
+To revert back to the official firmware, you can flash the latest official firmware from https://xteink.dve.al/, or swap
+back to the other partition using the "Swap boot partition" button here https://xteink.dve.al/debug.
+
+### Manual
+
+See [Development](#development) below.
+
+## Development
 
 ### Prerequisites
 
@@ -58,33 +90,21 @@ git submodule update --init --recursive
 
 ### Flashing your device
 
-#### Command line
-
 Connect your Xteink X4 to your computer via USB-C and run the following command.
 
 ```sh
 pio run --target upload
 ```
 
-#### Web
-
-1. Connect your Xteink X4 to your computer via USB-C
-2. Download the `firmware.bin` file from the latest release via the [releases page](https://github.com/daveallie/crosspoint-reader/releases)
-3. Go to https://xteink.dve.al/ and flash the firmware file using the "OTA fast flash controls" section
-4. Press the reset button on the Xteink X4 to restart the device
-
-To revert back to the official firmware, you can flash the latest official firmware from https://xteink.dve.al/, or swap
-back to the other partition using the "Swap boot partition" button here https://xteink.dve.al/debug. 
-
 ## Internals
 
 CrossPoint Reader is pretty aggressive about caching data down to the SD card to minimise RAM usage. The ESP32-C3 only
 has ~380KB of usable RAM, so we have to be careful. A lot of the decisions made in the design of the firmware were based
 on this constraint.
 
-### EPUB caching
+### Data caching
 
-The first time chapters of an EPUB are loaded, they are cached to the SD card. Subsequent loads are served from the 
+The first time chapters of a book are loaded, they are cached to the SD card. Subsequent loads are served from the 
 cache. This cache directory exists at `.crosspoint` on the SD card. The structure is as follows:
 
 
@@ -92,30 +112,30 @@ cache. This cache directory exists at `.crosspoint` on the SD card. The structur
 .crosspoint/
 ├── epub_12471232/       # Each EPUB is cached to a subdirectory named `epub_<hash>`
 │   ├── progress.bin     # Stores reading progress (chapter, page, etc.)
-│   ├── 0/               # Each chapter is stored in a subdirectory named by its index (based on the spine order)
-│   │   ├── section.bin  # Section metadata (page count)
-│   │   ├── page_0.bin   # Each page is stored in a separate file, it
-│   │   ├── page_1.bin   #   contains the position (x, y) and text for each word
-│   │   └── ...
-│   ├── 1/
-│   │   ├── section.bin
-│   │   ├── page_0.bin
-│   │   ├── page_1.bin
-│   │   └── ...
-│   └── ...
+│   ├── cover.bmp        # Book cover image (once generated)
+│   ├── book.bin         # Book metadata (title, author, spine, table of contents, etc.)
+│   └── sections/        # All chapter data is stored in the sections subdirectory
+│       ├── 0.bin        # Chapter data (screen count, all text layout info, etc.)
+│       ├── 1.bin        #     files are named by their index in the spine
+│       └── ...
 │
 └── epub_189013891/
 ```
 
-Deleting the `.crosspoint` directory will clear the cache. 
+Deleting the `.crosspoint` directory will clear the entire cache. 
 
-Due the way it's currently implemented, the cache is not automatically cleared when the EPUB is deleted and moving an 
-EPUB file will reset the reading progress.
+Due the way it's currently implemented, the cache is not automatically cleared when a book is deleted and moving a book
+file will use a new cache directory, resetting the reading progress.
+
+For more details on the internal file structures, see the [file formats document](./docs/file-formats.md).
 
 ## Contributing
 
 Contributions are very welcome!
 
+If you're looking for a way to help out, take a look at the [ideas discussion board](https://github.com/daveallie/crosspoint-reader/discussions/categories/ideas).
+If there's something there you'd like to work on, leave a comment so that we can avoid duplicated effort.
+
 ### To submit a contribution:
 
 1. Fork the repo

USER_GUIDE.md

@@ -0,0 +1,222 @@
+# CrossPoint User Guide
+
+Welcome to the **CrossPoint** firmware. This guide outlines the hardware controls, navigation, and reading features of the device.
+
+- [CrossPoint User Guide](#crosspoint-user-guide)
+  - [1. Hardware Overview](#1-hardware-overview)
+    - [Button Layout](#button-layout)
+  - [2. Power \& Startup](#2-power--startup)
+    - [Power On / Off](#power-on--off)
+    - [First Launch](#first-launch)
+  - [3. Screens](#3-screens)
+    - [3.1 Home Screen](#31-home-screen)
+    - [3.2 Book Selection](#32-book-selection)
+    - [3.3 Reading Mode](#33-reading-mode)
+    - [3.4 File Upload Screen](#34-file-upload-screen)
+    - [3.5 Settings](#35-settings)
+    - [3.6 Sleep Screen](#36-sleep-screen)
+  - [4. Reading Mode](#4-reading-mode)
+    - [Page Turning](#page-turning)
+    - [Chapter Navigation](#chapter-navigation)
+    - [System Navigation](#system-navigation)
+  - [5. Chapter Selection Screen](#5-chapter-selection-screen)
+  - [6. Current Limitations \& Roadmap](#6-current-limitations--roadmap)
+
+
+## 1. Hardware Overview
+
+The device utilises the standard buttons on the Xtink X4 (in the same layout as the manufacturer firmware, by default):
+
+### Button Layout
+| Location        | Buttons                                              |
+| --------------- | ---------------------------------------------------- |
+| **Bottom Edge** | **Back**, **Confirm**, **Left**, **Right**           |
+| **Right Side**  | **Power**, **Volume Up**, **Volume Down**, **Reset** |
+
+Button layout can be customized in **[Settings](#35-settings)**.
+
+---
+
+## 2. Power & Startup
+
+### Power On / Off
+
+To turn the device on or off, **press and hold the Power button for approximately half a second**.
+In **[Settings](#35-settings)** you can configure the power button to turn the device off with a short press instead of a long one.
+
+To reboot the device (for example if it's frozen, or after a firmware update), press and release the Reset button, and then quickly press and hold the Power button for a few seconds.
+
+### First Launch
+
+Upon turning the device on for the first time, you will be placed on the **[Home](#31-home-screen)** screen.
+
+> [!NOTE]
+> On subsequent restarts, the firmware will automatically reopen the last book you were reading.
+
+---
+
+## 3. Screens
+
+### 3.1 Home Screen
+
+The Home Screen is the main entry point to the firmware. From here you can navigate to **[Reading Mode](#4-reading-mode)** with the most recently read book, **[Book Selection](#32-book-selection)**, **[Settings](#35-settings)**, or the **[File Upload](#34-file-upload-screen)** screen.
+
+### 3.2 Book Selection
+
+The Book Selection acts as a folder and file browser.
+
+* **Navigate List:** Use **Left** (or **Volume Up**), or **Right** (or **Volume Down**) to move the selection cursor up and down through folders and books. You can also long-press these buttons to scroll a full page up or down.
+* **Open Selection:** Press **Confirm** to open a folder or read a selected book.
+
+### 3.3 Reading Mode
+
+See [Reading Mode](#4-reading-mode) below for more information.
+
+### 3.4 File Upload Screen
+
+The File Upload screen allows you to upload new e-books to the device. When you enter the screen, you'll be prompted with a WiFi selection dialog and then your X4 will start hosting a web server.
+
+See the [webserver docs](./docs/webserver.md) for more information on how to connect to the web server and upload files.
+
+> [!TIP]
+> Advanced users can also manage files programmatically or via the command line using `curl`. See the [webserver docs](./docs/webserver.md) for details.
+
+### 3.4.1 Calibre Wireless Transfers
+
+CrossPoint supports sending books from Calibre using the CrossPoint Reader device plugin.
+
+1. Install the plugin in Calibre:
+   - Head to https://github.com/crosspoint-reader/calibre-plugins/releases to download the latest version of the crosspoint_reader plugin.
+   - Download the zip file.
+   - Open Calibre → Preferences → Plugins → Load plugin from file → Select the zip file.
+2. On the device: File Transfer → Connect to Calibre → Join a network.
+3. Make sure your computer is on the same WiFi network.
+4. In Calibre, click "Send to device" to transfer books.
+
+### 3.5 Settings
+
+The Settings screen allows you to configure the device's behavior. There are a few settings you can adjust:
+- **Sleep Screen**: Which sleep screen to display when the device sleeps:
+  - "Dark" (default) - The default dark Crosspoint logo sleep screen
+  - "Light" - The same default sleep screen, on a white background
+  - "Custom" - Custom images from the SD card; see [Sleep Screen](#36-sleep-screen) below for more information
+  - "Cover" - The book cover image (Note: this is experimental and may not work as expected)
+  - "None" - A blank screen
+- **Sleep Screen Cover Mode**: How to display the book cover when "Cover" sleep screen is selected:
+  - "Fit" (default) - Scale the image down to fit centered on the screen, padding with white borders as necessary
+  - "Crop" - Scale the image down and crop as necessary to try to to fill the screen (Note: this is experimental and may not work as expected)
+- **Sleep Screen Cover Filter**: What filter will be applied to the book cover when "Cover" sleep screen is selected 
+  - "None" (default) - The cover image will be converted to a grayscale image and displayed as it is
+  - "Contrast" - The image will be displayed as a black & white image without grayscale conversion
+  - "Inverted" - The image will be inverted as in white&black and will be displayed without grayscale conversion
+- **Status Bar**: Configure the status bar displayed while reading:
+  - "None" - No status bar
+  - "No Progress" - Show status bar without reading progress
+  - "Full" - Show status bar with reading progress
+- **Hide Battery %**: Configure where to suppress the battery pecentage display in the status bar; the battery icon will still be shown:
+  - "Never" - Always show battery percentage (default)
+  - "In Reader" - Show battery percentage everywhere except in reading mode
+  - "Always" - Always hide battery percentage
+- **Extra Paragraph Spacing**: If enabled, vertical space will be added between paragraphs in the book. If disabled, paragraphs will not have vertical space between them, but will have first-line indentation.
+- **Text Anti-Aliasing**: Whether to show smooth grey edges (anti-aliasing) on text in reading mode. Note this slows down page turns slightly.
+- **Short Power Button Click**: Controls the effect of a short click of the power button:
+  - "Ignore" - Require a long press to turn off the device
+  - "Sleep" - A short press powers the device off
+  - "Page Turn" - A short press in reading mode turns to the next page; a long press turns the device off
+- **Reading Orientation**: Set the screen orientation for reading EPUB files:
+  - "Portrait" (default) - Standard portrait orientation
+  - "Landscape CW" - Landscape, rotated clockwise
+  - "Inverted" - Portrait, upside down
+  - "Landscape CCW" - Landscape, rotated counter-clockwise
+- **Front Button Layout**: Configure the order of the bottom edge buttons:
+  - Back, Confirm, Left, Right (default)
+  - Left, Right, Back, Confirm
+  - Left, Back, Confirm, Right
+  - Back, Confirm, Right, Left
+- **Side Button Layout (reader)**: Swap the order of the up and down volume buttons from Previous/Next to Next/Previous. This change is only in effect when reading.
+- **Long-press Chapter Skip**: Set whether long-pressing page turn buttons skip to the next/previous chapter.
+  - "Chapter Skip" (default) - Long-pressing skips to next/previous chapter
+  - "Page Scroll" - Long-pressing scrolls a page up/down
+- Swap the order of the up and down volume buttons from Previous/Next to Next/Previous. This change is only in effect when reading.
+- **Reader Font Family**: Choose the font used for reading:
+  - "Bookerly" (default) - Amazon's reading font
+  - "Noto Sans" - Google's sans-serif font
+  - "Open Dyslexic" - Font designed for readers with dyslexia
+- **Reader Font Size**: Adjust the text size for reading; options are "Small", "Medium", "Large", or "X Large".
+- **Reader Line Spacing**: Adjust the spacing between lines; options are "Tight", "Normal", or "Wide".
+- **Reader Screen Margin**: Controls the screen margins in reader mode between 5 and 40 pixels in 5 pixel increments.
+- **Reader Paragraph Alignment**: Set the alignment of paragraphs; options are "Justified" (default), "Left", "Center", or "Right".
+- **Time to Sleep**: Set the duration of inactivity before the device automatically goes to sleep.
+- **Refresh Frequency**: Set how often the screen does a full refresh while reading to reduce ghosting.
+- **OPDS Browser**: Configure OPDS server settings for browsing and downloading books. Set the server URL (for Calibre Content Server, add `/opds` to the end), and optionally configure username and password for servers requiring authentication. Note: Only HTTP Basic authentication is supported. If using Calibre Content Server with authentication enabled, you must set it to use Basic authentication instead of the default Digest authentication.
+- **Check for updates**: Check for firmware updates over WiFi.
+
+### 3.6 Sleep Screen
+
+You can customize the sleep screen by placing custom images in specific locations on the SD card:
+
+- **Single Image:** Place a file named `sleep.bmp` in the root directory.
+- **Multiple Images:** Create a `sleep` directory in the root of the SD card and place any number of `.bmp` images inside. If images are found in this directory, they will take priority over the `sleep.bmp` file, and one will be randomly selected each time the device sleeps.
+
+> [!NOTE]
+> You'll need to set the **Sleep Screen** setting to **Custom** in order to use these images.
+
+> [!TIP]
+> For best results:
+> - Use uncompressed BMP files with 24-bit color depth
+> - Use a resolution of 480x800 pixels to match the device's screen resolution.
+
+---
+
+## 4. Reading Mode
+
+Once you have opened a book, the button layout changes to facilitate reading.
+
+### Page Turning
+| Action            | Buttons                              |
+| ----------------- | ------------------------------------ |
+| **Previous Page** | Press **Left** _or_ **Volume Up**    |
+| **Next Page**     | Press **Right** _or_ **Volume Down** |
+
+The role of the volume (side) buttons can be swapped in **[Settings](#35-settings)**.
+
+If the **Short Power Button Click** setting is set to "Page Turn", you can also turn to the next page by briefly pressing the Power button.
+
+### Chapter Navigation
+* **Next Chapter:** Press and **hold** the **Right** (or **Volume Down**) button briefly, then release.
+* **Previous Chapter:** Press and **hold** the **Left** (or **Volume Up**) button briefly, then release.
+
+This feature can be disabled in **[Settings](#35-settings)** to help avoid changing chapters by mistake.
+
+
+### System Navigation
+* **Return to Book Selection:** Press **Back** to close the book and return to the **[Book Selection](#32-book-selection)** screen.
+* **Return to Home:** Press and **hold** the **Back** button to close the book and return to the **[Home](#31-home-screen)** screen.
+* **Chapter Menu:** Press **Confirm** to open the **[Table of Contents/Chapter Selection](#5-chapter-selection-screen)**.
+
+### Supported Languages
+
+CrossPoint renders text using the following Unicode character blocks, enabling support for a wide range of languages:
+
+*   **Latin Script (Basic, Supplement, Extended-A):** Covers English, German, French, Spanish, Portuguese, Italian, Dutch, Swedish, Norwegian, Danish, Finnish, Polish, Czech, Hungarian, Romanian, Slovak, Slovenian, Turkish, and others.
+*   **Cyrillic Script (Standard and Extended):** Covers Russian, Ukrainian, Belarusian, Bulgarian, Serbian, Macedonian, Kazakh, Kyrgyz, Mongolian, and others.
+
+What is not supported: Chinese, Japanese, Korean, Vietnamese, Hebrew, Arabic and Farsi.
+
+---
+
+## 5. Chapter Selection Screen
+
+Accessible by pressing **Confirm** while inside a book.
+
+1.  Use **Left** (or **Volume Up**), or **Right** (or **Volume Down**) to highlight the desired chapter.
+2.  Press **Confirm** to jump to that chapter.
+3.  *Alternatively, press **Back** to cancel and return to your current page.*
+
+---
+
+## 6. Current Limitations & Roadmap
+
+Please note that this firmware is currently in active development. The following features are **not yet supported** but are planned for future updates:
+
+* **Images:** Embedded images in e-books will not render.

bin/clang-format-fix

@@ -1,3 +1,20 @@
 #!/bin/bash
 
-find src lib \( -name "*.c" -o -name "*.cpp" -o -name "*.h" -o -name "*.hpp" \) -exec clang-format -style=file -i {} +
+GIT_LS_FILES_FLAGS=""
+if [[ "$1" == "-g" ]]; then
+  GIT_LS_FILES_FLAGS="--modified"
+fi
+
+# --- Main Logic ---
+
+# Format all files (or only modified files if -g is passed)
+
+# Use 'git ls-files' to get a list of all files tracked by git:
+# --modified: files tracked by git that have been modified (staged or unstaged)
+# --exclude-standard: ignores files in .gitignore
+# Additionally exclude files in 'lib/EpdFont/builtinFonts/' as they are script-generated.
+git ls-files  --exclude-standard ${GIT_LS_FILES_FLAGS} \
+    | grep -E '\.(c|cpp|h|hpp)$' \
+    | grep -v -E '^lib/CrossPointFont/builtinFonts/' \
+    | grep -v -E '^lib/CrossPointFont/Group5' \
+    | xargs -r clang-format -style=file -i

docs/comparison.md

@@ -0,0 +1,19 @@
+# CrossPoint vs XTOS
+
+Below is like for like comparison of CrossPoint (version 0.5.1) and XTOS (version 3.1.1). CrossPoint is on the left, 
+XTOS is on the right. CrossPoint does not currently support all features of XTOS, so this comparison is just of key 
+features which both firmwares support.
+
+## EPUB reading
+
+![](./images/comparison/reading-1.jpg)
+
+![](./images/comparison/reading-2.jpg)
+
+![](./images/comparison/reading-3.jpg)
+
+## Menus
+
+![](./images/comparison/menu.jpg)
+
+![](./images/comparison/chapter-menu.jpg)

docs/file-formats.md

@@ -0,0 +1,221 @@
+# File Formats
+
+## `book.bin`
+
+### Version 3
+
+ImHex Pattern:
+
+```c++
+import std.mem;
+import std.string;
+import std.core;
+
+// === Configuration ===
+#define EXPECTED_VERSION 3
+#define MAX_STRING_LENGTH 65535
+
+// === String Structure ===
+
+struct String {
+    u32 length [[hidden, comment("String byte length")]];
+    if (length > MAX_STRING_LENGTH) {
+        std::warning(std::format("Unusually large string length: {} bytes", length));
+    }
+    char data[length] [[comment("UTF-8 string data")]];
+} [[sealed, format("format_string"), comment("Length-prefixed UTF-8 string")]];
+
+fn format_string(String s) {
+    return s.data;
+};
+
+// === Metadata Structure ===
+
+struct Metadata {
+    String title [[comment("Book title")]];
+    String author [[comment("Book author")]];
+    String coverItemHref [[comment("Path to cover image")]];
+    String textReferenceHref [[comment("Path to guided first text reference")]];
+} [[comment("Book metadata information")]];
+
+// === Spine Entry Structure ===
+
+struct SpineEntry {
+    String href [[comment("Resource path")]];
+    u32 cumulativeSize [[comment("Cumulative size in bytes"), color("FF6B6B")]];
+    s16 tocIndex [[comment("Index into TOC (-1 if none)"), color("4ECDC4")]];
+} [[comment("Spine entry defining reading order")]];
+
+// === TOC Entry Structure ===
+
+struct TocEntry {
+    String title [[comment("Chapter/section title")]];
+    String href [[comment("Resource path")]];
+    String anchor [[comment("Fragment identifier")]];
+    u8 level [[comment("Nesting level (0-255)"), color("95E1D3")]];
+    s16 spineIndex [[comment("Index into spine (-1 if none)"), color("F38181")]];
+} [[comment("Table of contents entry")]];
+
+// === Book Bin Structure ===
+
+struct BookBin {
+    // Header
+    u8 version [[comment("Format version"), color("FFD93D")]];
+    
+    // Version validation
+    if (version != EXPECTED_VERSION) {
+        std::error(std::format("Unsupported version: {} (expected {})", version, EXPECTED_VERSION));
+    }
+    
+    u32 lutOffset [[comment("Offset to lookup tables"), color("6BCB77")]];
+    u16 spineCount [[comment("Number of spine entries"), color("4D96FF")]];
+    u16 tocCount [[comment("Number of TOC entries"), color("FF6B9D")]];
+    
+    // Metadata section
+    Metadata metadata [[comment("Book metadata")]];
+    
+    // Validate LUT offset alignment
+    u32 currentOffset = $;
+    if (currentOffset != lutOffset) {
+        std::warning(std::format("LUT offset mismatch: expected 0x{:X}, got 0x{:X}", lutOffset, currentOffset));
+    }
+    
+    // Lookup Tables
+    u32 spineLut[spineCount] [[comment("Spine entry offsets"), color("4D96FF")]];
+    u32 tocLut[tocCount] [[comment("TOC entry offsets"), color("FF6B9D")]];
+    
+    // Data Entries
+    SpineEntry spines[spineCount] [[comment("Spine entries (reading order)")]];
+    TocEntry toc[tocCount] [[comment("Table of contents entries")]];
+};
+
+// === File Parsing ===
+
+BookBin book @ 0x00;
+
+// Validate we've consumed the entire file
+u32 fileSize = std::mem::size();
+u32 parsedSize = $;
+
+if (parsedSize != fileSize) {
+    std::warning(std::format("Unparsed data detected: {} bytes remaining at offset 0x{:X}", fileSize - parsedSize, parsedSize));
+}
+```
+
+## `section.bin`
+
+### Version 8
+
+ImHex Pattern:
+
+```c++
+import std.mem;
+import std.string;
+import std.core;
+
+// === Configuration ===
+#define EXPECTED_VERSION 8
+#define MAX_STRING_LENGTH 65535
+
+// === String Structure ===
+
+struct String {
+    u32 length [[hidden, comment("String byte length")]];
+    if (length > MAX_STRING_LENGTH) {
+        std::warning(std::format("Unusually large string length: {} bytes", length));
+    }
+    char data[length] [[comment("UTF-8 string data")]];
+} [[sealed, format("format_string"), comment("Length-prefixed UTF-8 string")]];
+
+fn format_string(String s) {
+    return s.data;
+};
+
+// === Page Structure ===
+
+enum StorageType : u8 {
+    PageLine = 1
+};
+
+enum WordStyle : u8 {
+    REGULAR = 0,
+    BOLD = 1,
+    ITALIC = 2,
+    BOLD_ITALIC = 3
+};
+
+enum BlockStyle : u8 {
+    JUSTIFIED = 0,
+    LEFT_ALIGN = 1,
+    CENTER_ALIGN = 2,
+    RIGHT_ALIGN = 3,
+};
+
+struct PageLine {
+  s16 xPos;
+  s16 yPos;
+  u16 wordCount;
+  String words[wordCount];
+  u16 wordXPos[wordCount];
+  WordStyle wordStyle[wordCount];
+  BlockStyle blockStyle;
+};
+
+struct PageElement {
+    u8 pageElementType;
+    if (pageElementType == 1) {
+        PageLine pageLine [[inline]];
+    } else {
+        std::error(std::format("Unknown page element type: {}", pageElementType));
+    }
+};
+
+struct Page {
+    u16 elementCount;
+    PageElement elements[elementCount] [[inline]];
+};
+
+// === Section Bin Structure ===
+
+struct SectionBin {
+    // Header
+    u8 version [[comment("Format version"), color("FFD93D")]];
+    
+    // Version validation
+    if (version != EXPECTED_VERSION) {
+        std::error(std::format("Unsupported version: {} (expected {})", version, EXPECTED_VERSION));
+    }
+    
+    // Cache busting parameters
+    s32 fontId;
+    float lineCompression;
+    bool extraParagraphSpacing;
+    u16 viewportWidth;
+    u16 vieportHeight;
+    u16 pageCount;
+    u32 lutOffset;
+    
+    Page page[pageCount];
+    
+    // Validate LUT offset alignment
+    u32 currentOffset = $;
+    if (currentOffset != lutOffset) {
+        std::warning(std::format("LUT offset mismatch: expected 0x{:X}, got 0x{:X}", lutOffset, currentOffset));
+    }
+    
+    // Lookup Tables
+    u32 lut[pageCount];
+};
+
+// === File Parsing ===
+
+SectionBin book @ 0x00;
+
+// Validate we've consumed the entire file
+u32 fileSize = std::mem::size();
+u32 parsedSize = $;
+
+if (parsedSize != fileSize) {
+    std::warning(std::format("Unparsed data detected: {} bytes remaining at offset 0x{:X}", fileSize - parsedSize, parsedSize));
+}
+```

docs/hyphenation-trie-format.md

@@ -0,0 +1,66 @@
+# Hypher Binary Tries
+
+CrossPoint embeds the exact binary automata produced by
+[Typst's `hypher`](https://github.com/typst/hypher). 
+
+## File layout
+
+Each `.bin` blob is a single self-contained automaton:
+
+```
+uint32_t root_addr_be;  // big-endian offset of the root node
+uint8_t  levels[];      // shared "levels" tape (dist/score pairs)
+uint8_t  nodes[];       // node records packed back-to-back
+```
+
+The size of the `levels` tape is implicit. Individual nodes reference slices
+inside that tape via 12-bit offsets, so no additional pointers are required.
+
+### Node encoding
+
+Every node starts with a single control byte:
+
+- Bit 7 – set when the node stores scores (`levels`).
+- Bits 5-6 – stride of the target deltas (1, 2, or 3 bytes, big-endian).
+- Bits 0-4 – transition count (values ≥ 31 spill into an extra byte).
+
+If the `levels` flag is set, two more bytes follow. Together they encode a
+12-bit offset into the global `levels` tape and a 4-bit length. Each byte in the
+levels tape packs a distance/score pair as `dist * 10 + score`, where `dist`
+counts how many UTF-8 bytes we advanced since the previous digit.
+
+After the optional levels header come the transition labels (one byte per edge)
+followed by the signed target deltas. Targets are stored as relative offsets
+from the current node address. Deltas up to ±128 fit in a single byte, larger
+distances grow to 2 or 3 bytes. The runtime walks the transitions with a simple
+linear scan and materializes the absolute address by adding the decoded delta
+to the current node’s base.
+
+## Embedding blobs into the firmware
+
+The helper script `scripts/generate_hyphenation_trie.py` acts as a thin
+wrapper: it reads the hypher-generated `.bin` files, formats them as `constexpr`
+byte arrays, and emits headers under
+`lib/Epub/Epub/hyphenation/generated/`. Each header defines the raw data plus a
+`SerializedHyphenationPatterns` descriptor so the reader can keep the automaton
+in flash.
+
+To refresh the firmware assets after updating the `.bin` files, run:
+
+```
+./scripts/generate_hyphenation_trie.py \
+    --input lib/Epub/Epub/hyphenation/tries/en.bin \
+    --output lib/Epub/Epub/hyphenation/generated/hyph-en.trie.h
+
+./scripts/generate_hyphenation_trie.py \
+    --input lib/Epub/Epub/hyphenation/tries/fr.bin \
+    --output lib/Epub/Epub/hyphenation/generated/hyph-fr.trie.h
+
+./scripts/generate_hyphenation_trie.py \
+    --input lib/Epub/Epub/hyphenation/tries/de.bin \
+    --output lib/Epub/Epub/hyphenation/generated/hyph-de.trie.h
+
+./scripts/generate_hyphenation_trie.py \
+    --input lib/Epub/Epub/hyphenation/tries/ru.bin \
+    --output lib/Epub/Epub/hyphenation/generated/hyph-ru.trie.h
+```

docs/troubleshooting.md

@@ -0,0 +1,57 @@
+# Troubleshooting
+
+This document show most common issues and possible solutions while using the device features.
+
+- [Troubleshooting](#troubleshooting)
+    - [Cannot See the Device on the Network](#cannot-see-the-device-on-the-network)
+    - [Connection Drops or Times Out](#connection-drops-or-times-out)
+    - [Upload Fails](#upload-fails)
+    - [Saved Password Not Working](#saved-password-not-working)
+
+### Cannot See the Device on the Network
+
+**Problem:** Browser shows "Cannot connect" or "Site can't be reached"
+
+**Solutions:**
+
+1. Verify both devices are on the **same WiFi network**
+   - Check your computer/phone WiFi settings
+   - Confirm the CrossPoint Reader shows "Connected" status
+2. Double-check the IP address
+   - Make sure you typed it correctly
+   - Include `http://` at the beginning
+3. Try disabling VPN if you're using one
+4. Some networks have "client isolation" enabled - check with your network administrator
+
+### Connection Drops or Times Out
+
+**Problem:** WiFi connection is unstable
+
+**Solutions:**
+
+1. Move closer to the WiFi router
+2. Check signal strength on the device (should be at least `||` or better)
+3. Avoid interference from other devices
+4. Try a different WiFi network if available
+
+### Upload Fails
+
+**Problem:** File upload doesn't complete or shows an error
+
+**Solutions:**
+
+1. Ensure the file is a valid `.epub` file
+2. Check that the SD card has enough free space
+3. Try uploading a smaller file first to test
+4. Refresh the browser page and try again
+
+### Saved Password Not Working
+
+**Problem:** Device fails to connect with saved credentials
+
+**Solutions:**
+
+1. When connection fails, you'll be prompted to "Forget Network"
+2. Select **Yes** to remove the saved password
+3. Reconnect and enter the password again
+4. Choose to save the new password

docs/webserver-endpoints.md

@@ -0,0 +1,331 @@
+# Webserver Endpoints
+
+This document describes all HTTP and WebSocket endpoints available on the CrossPoint Reader webserver.
+
+- [Webserver Endpoints](#webserver-endpoints)
+  - [Overview](#overview)
+  - [HTTP Endpoints](#http-endpoints)
+    - [GET `/` - Home Page](#get----home-page)
+    - [GET `/files` - File Browser Page](#get-files---file-browser-page)
+    - [GET `/api/status` - Device Status](#get-apistatus---device-status)
+    - [GET `/api/files` - List Files](#get-apifiles---list-files)
+    - [POST `/upload` - Upload File](#post-upload---upload-file)
+    - [POST `/mkdir` - Create Folder](#post-mkdir---create-folder)
+    - [POST `/delete` - Delete File or Folder](#post-delete---delete-file-or-folder)
+  - [WebSocket Endpoint](#websocket-endpoint)
+    - [Port 81 - Fast Binary Upload](#port-81---fast-binary-upload)
+  - [Network Modes](#network-modes)
+    - [Station Mode (STA)](#station-mode-sta)
+    - [Access Point Mode (AP)](#access-point-mode-ap)
+  - [Notes](#notes)
+
+
+## Overview
+
+The CrossPoint Reader exposes a webserver for file management and device monitoring:
+
+- **HTTP Server**: Port 80
+- **WebSocket Server**: Port 81 (for fast binary uploads)
+
+---
+
+## HTTP Endpoints
+
+### GET `/` - Home Page
+
+Serves the home page HTML interface.
+
+**Request:**
+```bash
+curl http://crosspoint.local/
+```
+
+**Response:** HTML page (200 OK)
+
+---
+
+### GET `/files` - File Browser Page
+
+Serves the file browser HTML interface.
+
+**Request:**
+```bash
+curl http://crosspoint.local/files
+```
+
+**Response:** HTML page (200 OK)
+
+---
+
+### GET `/api/status` - Device Status
+
+Returns JSON with device status information.
+
+**Request:**
+```bash
+curl http://crosspoint.local/api/status
+```
+
+**Response (200 OK):**
+```json
+{
+  "version": "1.0.0",
+  "ip": "192.168.1.100",
+  "mode": "STA",
+  "rssi": -45,
+  "freeHeap": 123456,
+  "uptime": 3600
+}
+```
+
+| Field      | Type   | Description                                               |
+| ---------- | ------ | --------------------------------------------------------- |
+| `version`  | string | CrossPoint firmware version                               |
+| `ip`       | string | Device IP address                                         |
+| `mode`     | string | `"STA"` (connected to WiFi) or `"AP"` (access point mode) |
+| `rssi`     | number | WiFi signal strength in dBm (0 in AP mode)                |
+| `freeHeap` | number | Free heap memory in bytes                                 |
+| `uptime`   | number | Seconds since device boot                                 |
+
+---
+
+### GET `/api/files` - List Files
+
+Returns a JSON array of files and folders in the specified directory.
+
+**Request:**
+```bash
+# List root directory
+curl http://crosspoint.local/api/files
+
+# List specific directory
+curl "http://crosspoint.local/api/files?path=/Books"
+```
+
+**Query Parameters:**
+
+| Parameter | Required | Default | Description            |
+| --------- | -------- | ------- | ---------------------- |
+| `path`    | No       | `/`     | Directory path to list |
+
+**Response (200 OK):**
+```json
+[
+  {"name": "MyBook.epub", "size": 1234567, "isDirectory": false, "isEpub": true},
+  {"name": "Notes", "size": 0, "isDirectory": true, "isEpub": false},
+  {"name": "document.pdf", "size": 54321, "isDirectory": false, "isEpub": false}
+]
+```
+
+| Field         | Type    | Description                              |
+| ------------- | ------- | ---------------------------------------- |
+| `name`        | string  | File or folder name                      |
+| `size`        | number  | Size in bytes (0 for directories)        |
+| `isDirectory` | boolean | `true` if the item is a folder           |
+| `isEpub`      | boolean | `true` if the file has `.epub` extension |
+
+**Notes:**
+- Hidden files (starting with `.`) are automatically filtered out
+- System folders (`System Volume Information`, `XTCache`) are hidden
+
+---
+
+### POST `/upload` - Upload File
+
+Uploads a file to the SD card via multipart form data.
+
+**Request:**
+```bash
+# Upload to root directory
+curl -X POST -F "file=@mybook.epub" http://crosspoint.local/upload
+
+# Upload to specific directory
+curl -X POST -F "file=@mybook.epub" "http://crosspoint.local/upload?path=/Books"
+```
+
+**Query Parameters:**
+
+| Parameter | Required | Default | Description                     |
+| --------- | -------- | ------- | ------------------------------- |
+| `path`    | No       | `/`     | Target directory for the upload |
+
+**Response (200 OK):**
+```
+File uploaded successfully: mybook.epub
+```
+
+**Error Responses:**
+
+| Status | Body                                            | Cause                       |
+| ------ | ----------------------------------------------- | --------------------------- |
+| 400    | `Failed to create file on SD card`              | Cannot create file          |
+| 400    | `Failed to write to SD card - disk may be full` | Write error during upload   |
+| 400    | `Failed to write final data to SD card`         | Error flushing final buffer |
+| 400    | `Upload aborted`                                | Client aborted the upload   |
+| 400    | `Unknown error during upload`                   | Unspecified error           |
+
+**Notes:**
+- Existing files with the same name will be overwritten
+- Uses a 4KB buffer for efficient SD card writes
+
+---
+
+### POST `/mkdir` - Create Folder
+
+Creates a new folder on the SD card.
+
+**Request:**
+```bash
+curl -X POST -d "name=NewFolder&path=/" http://crosspoint.local/mkdir
+```
+
+**Form Parameters:**
+
+| Parameter | Required | Default | Description                  |
+| --------- | -------- | ------- | ---------------------------- |
+| `name`    | Yes      | -       | Name of the folder to create |
+| `path`    | No       | `/`     | Parent directory path        |
+
+**Response (200 OK):**
+```
+Folder created: NewFolder
+```
+
+**Error Responses:**
+
+| Status | Body                          | Cause                         |
+| ------ | ----------------------------- | ----------------------------- |
+| 400    | `Missing folder name`         | `name` parameter not provided |
+| 400    | `Folder name cannot be empty` | Empty folder name             |
+| 400    | `Folder already exists`       | Folder with same name exists  |
+| 500    | `Failed to create folder`     | SD card error                 |
+
+---
+
+### POST `/delete` - Delete File or Folder
+
+Deletes a file or folder from the SD card.
+
+**Request:**
+```bash
+# Delete a file
+curl -X POST -d "path=/Books/mybook.epub&type=file" http://crosspoint.local/delete
+
+# Delete an empty folder
+curl -X POST -d "path=/OldFolder&type=folder" http://crosspoint.local/delete
+```
+
+**Form Parameters:**
+
+| Parameter | Required | Default | Description                      |
+| --------- | -------- | ------- | -------------------------------- |
+| `path`    | Yes      | -       | Path to the item to delete       |
+| `type`    | No       | `file`  | Type of item: `file` or `folder` |
+
+**Response (200 OK):**
+```
+Deleted successfully
+```
+
+**Error Responses:**
+
+| Status | Body                                          | Cause                         |
+| ------ | --------------------------------------------- | ----------------------------- |
+| 400    | `Missing path`                                | `path` parameter not provided |
+| 400    | `Cannot delete root directory`                | Attempted to delete `/`       |
+| 400    | `Folder is not empty. Delete contents first.` | Non-empty folder              |
+| 403    | `Cannot delete system files`                  | Hidden file (starts with `.`) |
+| 403    | `Cannot delete protected items`               | Protected system folder       |
+| 404    | `Item not found`                              | Path does not exist           |
+| 500    | `Failed to delete item`                       | SD card error                 |
+
+**Protected Items:**
+- Files/folders starting with `.`
+- `System Volume Information`
+- `XTCache`
+
+---
+
+## WebSocket Endpoint
+
+### Port 81 - Fast Binary Upload
+
+A WebSocket endpoint for high-speed binary file uploads. More efficient than HTTP multipart for large files.
+
+**Connection:**
+```
+ws://crosspoint.local:81/
+```
+
+**Protocol:**
+
+1. **Client** sends TEXT message: `START:<filename>:<size>:<path>`
+2. **Server** responds with TEXT: `READY`
+3. **Client** sends BINARY messages with file data chunks
+4. **Server** sends TEXT progress updates: `PROGRESS:<received>:<total>`
+5. **Server** sends TEXT when complete: `DONE` or `ERROR:<message>`
+
+**Example Session:**
+
+```
+Client -> "START:mybook.epub:1234567:/Books"
+Server -> "READY"
+Client -> [binary chunk 1]
+Client -> [binary chunk 2]
+Server -> "PROGRESS:65536:1234567"
+Client -> [binary chunk 3]
+...
+Server -> "PROGRESS:1234567:1234567"
+Server -> "DONE"
+```
+
+**Error Messages:**
+
+| Message                           | Cause                              |
+| --------------------------------- | ---------------------------------- |
+| `ERROR:Failed to create file`     | Cannot create file on SD card      |
+| `ERROR:Invalid START format`      | Malformed START message            |
+| `ERROR:No upload in progress`     | Binary data received without START |
+| `ERROR:Write failed - disk full?` | SD card write error                |
+
+**Example with `websocat`:**
+```bash
+# Interactive session
+websocat ws://crosspoint.local:81
+
+# Then type:
+START:mybook.epub:1234567:/Books
+# Wait for READY, then send binary data
+```
+
+**Notes:**
+- Progress updates are sent every 64KB or at completion
+- Disconnection during upload will delete the incomplete file
+- Existing files with the same name will be overwritten
+
+---
+
+## Network Modes
+
+The device can operate in two network modes:
+
+### Station Mode (STA)
+- Device connects to an existing WiFi network
+- IP address assigned by router/DHCP
+- `mode` field in `/api/status` returns `"STA"`
+- `rssi` field shows signal strength
+
+### Access Point Mode (AP)
+- Device creates its own WiFi hotspot
+- Default IP is typically `192.168.4.1`
+- `mode` field in `/api/status` returns `"AP"`
+- `rssi` field returns `0`
+
+---
+
+## Notes
+
+- These examples use `crosspoint.local`. If your network does not support mDNS or the address does not resolve, replace it with the specific **IP Address** displayed on your device screen (e.g., `http://192.168.1.102/`).
+- All paths on the SD card start with `/`
+- Trailing slashes are automatically stripped (except for root `/`)
+- The webserver uses chunked transfer encoding for file listings

docs/webserver.md

@@ -0,0 +1,225 @@
+# Web Server Guide
+
+This guide explains how to connect your CrossPoint Reader to WiFi and use the built-in web server to upload EPUB files from your computer or phone.
+
+## Overview
+
+CrossPoint Reader includes a built-in web server that allows you to:
+
+- Upload EPUB files wirelessly from any device on the same WiFi network
+- Browse and manage files on your device's SD card
+- Create folders to organize your ebooks
+- Delete files and folders
+
+## Prerequisites
+
+- Your CrossPoint Reader device
+- A WiFi network
+- A computer, phone, or tablet connected to the **same WiFi network**
+
+---
+
+## Step 1: Accessing the WiFi Screen
+
+1. From the main menu or file browser, navigate to the **Settings** screen
+2. Select the **WiFi** option
+3. The device will automatically start scanning for available networks
+
+---
+
+## Step 2: Connecting to WiFi
+
+### Viewing Available Networks
+
+Once the scan completes, you'll see a list of available WiFi networks with the following indicators:
+
+- **Signal strength bars** (`||||`, `|||`, `||`, `|`) - Shows connection quality
+- **`*` symbol** - Indicates the network is password-protected (encrypted)
+- **`+` symbol** - Indicates you have previously saved credentials for this network
+
+<img src="./images/wifi/wifi_networks.jpeg" height="500">
+
+### Selecting a Network
+
+1. Use the **Left/Right** (or **Volume Up/Down**) buttons to navigate through the network list
+2. Press **Confirm** to select the highlighted network
+
+### Entering Password (for encrypted networks)
+
+If the network requires a password:
+
+1. An on-screen keyboard will appear
+2. Use the navigation buttons to select characters
+3. Press **Confirm** to enter each character
+4. When complete, select the **Done** option on the keyboard
+
+<img src="./images/wifi/wifi_password.jpeg" height="500">
+
+**Note:** If you've previously connected to this network, the saved password will be used automatically.
+
+### Connection Process
+
+The device will display "Connecting..." while establishing the connection. This typically takes 5-10 seconds.
+
+### Saving Credentials
+
+If this is a new network, you'll be prompted to save the password:
+
+- Select **Yes** to save credentials for automatic connection next time (NOTE: These are stored in plaintext on the device's SD card. Do not use this for sensitive networks.)
+- Select **No** to connect without saving
+
+---
+
+## Step 3: Connection Success
+
+Once connected, the screen will display:
+
+- **Network name** (SSID)
+- **IP Address** (e.g., `192.168.1.102`)
+- **Web server URL** (e.g., `http://192.168.1.102/`)
+
+<img src="./images/wifi/wifi_connected.jpeg" height="500">
+
+**Important:** Make note of the IP address - you'll need this to access the web interface from your computer or phone.
+
+---
+
+## Step 4: Accessing the Web Interface
+
+### From a Computer
+
+1. Ensure your computer is connected to the **same WiFi network** as your CrossPoint Reader
+2. Open any web browser (Chrome is recommended)
+3. Type the IP address shown on your device into the browser's address bar
+   - Example: `http://192.168.1.102/`
+4. Press Enter
+
+### From a Phone or Tablet
+
+1. Ensure your phone/tablet is connected to the **same WiFi network** as your CrossPoint Reader
+2. Open your mobile browser (Safari, Chrome, etc.)
+3. Type the IP address into the address bar
+   - Example: `http://192.168.1.102/`
+4. Tap Go
+
+---
+
+## Step 5: Using the Web Interface
+
+### Home Page
+
+The home page displays:
+
+- Device status and version information
+- WiFi connection status
+- Current IP address
+- Available memory
+
+Navigation links:
+
+- **Home** - Returns to the status page
+- **File Manager** - Access file management features
+
+<img src="./images/wifi/webserver_homepage.png" width="600">
+
+### File Manager
+
+Click **File Manager** to access file management features.
+
+#### Browsing Files
+
+- The file manager displays all files and folders on your SD card
+- **Folders** are highlighted in yellow with a 📁 icon
+- **EPUB files** are highlighted in green with a 📗 icon
+- Click on a folder name to navigate into it
+- Use the breadcrumb navigation at the top to go back to parent folders
+
+<img src="./images/wifi/webserver_files.png" width="600">
+
+#### Uploading EPUB Files
+
+1. Click the **+ Add** button in the top-right corner
+2. Select **Upload eBook** from the dropdown menu
+3. Click **Choose File** and select an `.epub` file from your device
+4. Click **Upload**
+5. A progress bar will show the upload status
+6. The page will automatically refresh when the upload is complete
+
+**Note:** Only `.epub` files are accepted. Other file types will be rejected.
+
+<img src="./images/wifi/webserver_upload.png" width="600">
+
+#### Creating Folders
+
+1. Click the **+ Add** button in the top-right corner
+2. Select **New Folder** from the dropdown menu
+3. Enter a folder name (letters, numbers, underscores, and hyphens only)
+4. Click **Create Folder**
+
+This is useful for organizing your ebooks by genre, author, or series.
+
+#### Deleting Files and Folders
+
+1. Click the **🗑️** (trash) icon next to any file or folder
+2. Confirm the deletion in the popup dialog
+3. Click **Delete** to permanently remove the item
+
+**Warning:** Deletion is permanent and cannot be undone!
+
+**Note:** Folders must be empty before they can be deleted.
+
+---
+
+## Command Line File Management
+
+For power users, you can manage files directly from your terminal using `curl` while the device is in File Upload mode a detailed documentation can be found [here](./webserver-endpoints.md). 
+
+## Security Notes
+
+- The web server runs on port 80 (standard HTTP)
+- **No authentication is required** - anyone on the same network can access the interface
+- The web server is only accessible while the WiFi screen shows "Connected"
+- The web server automatically stops when you exit the WiFi screen
+- For security, only use on trusted private networks
+
+---
+
+## Technical Details
+
+- **Supported WiFi:** 2.4GHz networks (802.11 b/g/n)
+- **Web Server Port:** 80 (HTTP)
+- **Maximum Upload Size:** Limited by available SD card space
+- **Supported File Format:** `.epub` only
+- **Browser Compatibility:** All modern browsers (Chrome, Firefox, Safari, Edge)
+
+---
+
+## Tips and Best Practices
+
+1. **Organize with folders** - Create folders before uploading to keep your library organized
+2. **Check signal strength** - Stronger signals (`|||` or `||||`) provide faster, more reliable uploads
+3. **Upload multiple files** - You can upload files one at a time; the page refreshes after each upload
+4. **Use descriptive names** - Name your folders clearly (e.g., "SciFi", "Mystery", "Non-Fiction")
+5. **Keep credentials saved** - Save your WiFi password for quick reconnection in the future
+6. **Exit when done** - Press **Back** to exit the WiFi screen and save battery
+
+---
+
+## Exiting WiFi Mode
+
+When you're finished uploading files:
+
+1. Press the **Back** button on your CrossPoint Reader
+2. The web server will automatically stop
+3. WiFi will disconnect to conserve battery
+4. You'll return to the previous screen
+
+Your uploaded files will be immediately available in the file browser!
+
+---
+
+## Related Documentation
+
+- [User Guide](../USER_GUIDE.md) - General device operation
+- [Troubleshooting](./troubleshooting.md) - Troubleshooting
+- [README](../README.md) - Project overview and features

lib/CrossPointFont/CrossPointFont.cpp

@@ -0,0 +1,147 @@
+#include "CrossPointFont.h"
+
+#include <Utf8.h>
+
+#include <algorithm>
+#include <cmath>
+
+#define FONT_SCALE 2
+
+namespace {
+// Number of set bits from 0->15
+uint8_t bitCount[] = {
+    0,  // 0b0000,
+    1,  // 0b0001,
+    1,  // 0b0010,
+    2,  // 0b0011,
+    1,  // 0b0100,
+    2,  // 0b0101,
+    2,  // 0b0110,
+    3,  // 0b0111,
+    1,  // 0b1000,
+    2,  // 0b1001,
+    2,  // 0b1010,
+    3,  // 0b1011,
+    2,  // 0b1100,
+    3,  // 0b1101,
+    3,  // 0b1110,
+    4,  // 0b1111,
+};
+}  // namespace
+
+void CrossPointFont::getTextBounds(const char* string, const Style style, const int startX, const int startY, int* minX,
+                                   int* minY, int* maxX, int* maxY) const {
+  *minX = startX;
+  *minY = startY;
+  *maxX = startX;
+  *maxY = startY;
+
+  if (*string == '\0') {
+    return;
+  }
+
+  int cursorX = startX;
+  const int cursorY = startY;
+  uint32_t cp;
+  while ((cp = utf8NextCodepoint(reinterpret_cast<const uint8_t**>(&string)))) {
+    const CrossPointFontGlyph* glyph = getGlyph(cp, style);
+
+    if (!glyph) {
+      glyph = getGlyph(REPLACEMENT_GLYPH, style);
+    }
+
+    if (!glyph) {
+      // TODO: Better handle this?
+      continue;
+    }
+
+    *minX = std::min(*minX, cursorX + glyph->xOffset / FONT_SCALE);
+    *maxX = std::max(*maxX, cursorX + (glyph->xOffset + glyph->width) / FONT_SCALE);
+    *minY = std::min(*minY, cursorY + (glyph->yOffset - glyph->height) / FONT_SCALE);
+    *maxY = std::max(*maxY, cursorY + glyph->yOffset / FONT_SCALE);
+    cursorX += glyph->xAdvance / FONT_SCALE;
+  }
+}
+
+void CrossPointFont::getTextDimensions(const char* string, const Style style, int* w, int* h) const {
+  int minX = 0, minY = 0, maxX = 0, maxY = 0;
+
+  getTextBounds(string, style, 0, 0, &minX, &minY, &maxX, &maxY);
+
+  *w = maxX - minX;
+  *h = maxY - minY;
+}
+
+uint8_t CrossPointFont::styleGroup(const Style style) const {
+  if (style == REGULAR) return 0;
+
+  if (data.header.styles == 0b0001) {
+    // Only have regular font, show regular
+    return 0;
+  }
+  if (data.header.styles == 0b0011) {
+    // Only have bold and regular font
+    // Show bold if style is bold or bold_italic
+    return style == BOLD || style == BOLD_ITALIC ? 1 : 0;
+  }
+  if (data.header.styles == 0b0101) {
+    // Only have italic and regular font
+    // Show italic if style is italic or bold_italic
+    return style == ITALIC || style == BOLD_ITALIC ? 1 : 0;
+  }
+  if (data.header.styles == 0b1001) {
+    // Only have bold_italic and regular font
+    // Show bold_italic if style is any non-regular
+    return style == BOLD_ITALIC || style == BOLD || style == ITALIC ? 1 : 0;
+  }
+  if (data.header.styles == 0b0111) {
+    // Have all but bold_italic
+    // Show bold if style is bold_italic, otherwise show the requested style
+    return style == BOLD_ITALIC ? 1 : style;
+  }
+  if (data.header.styles == 0b1011) {
+    // Have all but italic
+    // Show bold_italic if style is italic, otherwise show the requested style
+    return style == ITALIC ? 2 : style;
+  }
+  if (data.header.styles == 0b1101) {
+    // Have all but bold
+    // Show bold_italic if style is bold, otherwise show the requested style
+    return style == BOLD ? 2 : style;
+  }
+  if (data.header.styles == 0b1111) {
+    return style;
+  }
+
+  return 0;
+}
+
+const CrossPointFontGlyph* CrossPointFont::getGlyph(const uint32_t cp, const Style style) const {
+  const CrossPointFontUnicodeInterval* intervals = data.intervals;
+  const int count = data.header.intervalCount;
+
+  if (count == 0) return nullptr;
+
+  // Binary search for O(log n) lookup instead of O(n)
+  // Critical for Korean fonts with many unicode intervals
+  int left = 0;
+  int right = count - 1;
+
+  while (left <= right) {
+    const int mid = left + (right - left) / 2;
+    const CrossPointFontUnicodeInterval* interval = &intervals[mid];
+
+    if (cp < interval->first) {
+      right = mid - 1;
+    } else if (cp > interval->last) {
+      left = mid + 1;
+    } else {
+      // Found: cp >= interval->first && cp <= interval->last
+      const uint32_t index =
+          interval->offset + (cp - interval->first) * bitCount[data.header.styles] + styleGroup(style);
+      return &data.glyphs[index];
+    }
+  }
+
+  return nullptr;
+}

lib/CrossPointFont/CrossPointFont.h

@@ -0,0 +1,31 @@
+#pragma once
+
+#include <cstdint>
+
+#include "CrossPointFontFormat.h"
+#include "Group5/Group5.h"
+
+class CrossPointFont {
+ public:
+  enum Style : uint8_t { REGULAR = 0, BOLD = 1, ITALIC = 2, BOLD_ITALIC = 3 };
+
+  CrossPointFontData data;
+  explicit CrossPointFont(void* rawData) {
+    data.header = *static_cast<CrossPointFontHeader*>(rawData);
+    data.intervals = (CrossPointFontUnicodeInterval*)(static_cast<uint8_t*>(rawData) + sizeof(CrossPointFontHeader));
+    data.glyphs = (CrossPointFontGlyph*)((uint8_t*)data.intervals +
+                                         sizeof(CrossPointFontUnicodeInterval) * data.header.intervalCount);
+    data.bitmap = (uint8_t*)data.glyphs + sizeof(CrossPointFontGlyph) * data.header.glyphCount;
+  }
+
+  ~CrossPointFont() = default;
+  void getTextDimensions(const char* string, Style style, int* w, int* h) const;
+  const CrossPointFontGlyph* getGlyph(uint32_t cp, Style style) const;
+
+ private:
+  void getTextBounds(const char* string, Style style, int startX, int startY, int* minX, int* minY, int* maxX,
+                     int* maxY) const;
+  uint8_t styleGroup(Style style) const;
+};
+
+// TODO: CrossPointFontSmall

lib/CrossPointFont/CrossPointFontFormat.h

@@ -0,0 +1,57 @@
+#pragma once
+
+// 16-bit marker at the start of a CrossPoint font file
+// (CrossPoint Font Format)
+#define CPF_FONT_MARKER 0xCFF1
+#define CPF_FONT_MARKER_SMALL 0xCFF2
+
+// Font info per large character (glyph)
+typedef struct {
+  uint32_t bitmapOffset;  /// Offset to compressed bitmap data for this glyph
+  uint16_t width;         /// bitmap width in pixels
+  uint16_t height;        /// bitmap height in pixels
+  uint16_t xAdvance;      /// total width in pixels (bitmap + padding)
+  int16_t xOffset;        /// left padding to upper left corner
+  int16_t yOffset;        /// top padding to upper left corner
+} CrossPointFontGlyph;
+
+// Font info per small character (glyph)
+typedef struct {
+  uint32_t bitmapOffset;  /// Offset to compressed bitmap data for this glyph
+  uint8_t width;          /// bitmap width in pixels
+  uint8_t height;         /// bitmap height in pixels
+  uint8_t xAdvance;       /// total width in pixels (bitmap + padding)
+  int8_t xOffset;         /// left padding to upper left corner
+  int16_t yOffset;        /// top padding to upper left corner
+} CrossPointFontSmallGlyph;
+
+/// Glyph interval structure
+typedef struct {
+  uint32_t first;   /// The first unicode code point of the interval
+  uint32_t last;    /// The last unicode code point of the interval
+  uint32_t offset;  /// Index of the first code point into the glyph array
+} CrossPointFontUnicodeInterval;
+
+typedef struct {
+  uint16_t u16Marker;      /// CPF_FONT_MARKER / CPF_FONT_MARKER_SMALL
+  uint16_t height;         /// Newline distance (y axis)
+  uint16_t ascender;       /// Maximal height of a glyph above the base line
+  uint8_t styles;          /// Regular = 0x01, Bold = 0x02, Italic = 0x04, BoldItalic = 0x08, can be OR'd together
+  uint16_t intervalCount;  /// Number of unicode intervals.
+  uint32_t glyphCount;     /// Number of total glyphs across all styles
+} CrossPointFontHeader;
+
+/// Data stored for FONT AS A WHOLE
+typedef struct {
+  CrossPointFontHeader header;
+  CrossPointFontUnicodeInterval* intervals;  /// Valid unicode intervals for this font
+  CrossPointFontGlyph* glyphs;               /// Glyph array
+  uint8_t* bitmap;                           /// Glyph bitmaps, concatenated
+} CrossPointFontData;
+
+typedef struct {
+  CrossPointFontHeader header;
+  CrossPointFontUnicodeInterval* intervals;  /// Valid unicode intervals for this font
+  CrossPointFontSmallGlyph* glyphs;          /// Glyph array
+  uint8_t* bitmap;                           /// Glyph bitmaps, concatenated
+} CrossPointFontDataSmall;

lib/CrossPointFont/Group5/Group5.cpp

@@ -0,0 +1,51 @@
+#include "g5enc.inl"
+#include "g5dec.inl"
+//
+// Group5 1-bit image compression library
+// Written by Larry Bank (bitbank@pobox.com)
+// Decoder C++ wrapper functions
+//
+// SPDX-FileCopyrightText: 2024 BitBank Software, Inc.
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+int G5DECODER::init(int iWidth, int iHeight, uint8_t *pData, int iDataSize)
+{
+    return g5_decode_init(&_g5dec, iWidth, iHeight, pData, iDataSize);
+} /* init() */
+
+int G5DECODER::decodeLine(uint8_t *pOut)
+{
+    return g5_decode_line(&_g5dec, pOut);
+} /* decodeLine() */
+
+//
+// Encoder C++ wrapper functions
+//
+int G5ENCODER::init(int iWidth, int iHeight, uint8_t *pOut, int iOutSize)
+{
+    return g5_encode_init(&_g5enc, iWidth, iHeight, pOut, iOutSize);
+} /* init() */
+
+int G5ENCODER::encodeLine(uint8_t *pPixels)
+{
+    return g5_encode_encodeLine(&_g5enc, pPixels);
+} /* encodeLine() */
+
+int G5ENCODER::size()
+{
+    return g5_encode_getOutSize(&_g5enc);
+} /* size() */
+

lib/CrossPointFont/Group5/Group5.h

@@ -0,0 +1,171 @@
+#ifndef __GROUP5__
+#define __GROUP5__
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdio.h>
+#ifdef __AVR__
+#include <avr/pgmspace.h>
+#endif
+//
+// Group5 1-bit image compression library
+// Written by Larry Bank (bitbank@pobox.com)
+//
+// SPDX-FileCopyrightText: 2024 BitBank Software, Inc.
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// The name "Group5" is derived from the CCITT Group4 standard
+// This code is based on a lot of the good ideas from CCITT T.6
+// for FAX image compression, but modified to work in a very
+// constrained environment. The Huffman tables for horizontal
+// mode have been replaced with a simple 2-bit flag followed by
+// short or long counts of a fixed length. The short codes are
+// always 3 bits (run lengths 0-7) and the long codes are the
+// number of bits needed to encode the width of the image.
+// For example, if a 320 pixel wide image is being compressed,
+// the longest horizontal run needed is 320, which requires 9
+// bits to encode. The 2 prefix bits have the following meaning:
+// 00 = short, short (3+3 bits)
+// 01 = short, long (3+N bits)
+// 10 = long, short (N+3 bits)
+// 11 = long, long (N+N bits)
+// The rest of the code works identically to Group4 2D FAX
+//
+// Caution - this is the maximum number of color changes per line
+// The default value is set low to work embedded systems with little RAM
+// for font compression, this is plenty since each line of a character should have
+// a maximum of 7 color changes
+// You can define this in your compiler macros to override the default vlaue
+//
+#ifndef MAX_IMAGE_FLIPS
+#ifdef __AVR__
+#define MAX_IMAGE_FLIPS 32
+#else
+#define MAX_IMAGE_FLIPS 512
+#endif // __AVR__
+#endif
+// Horizontal prefix bits
+enum {
+    HORIZ_SHORT_SHORT=0,
+    HORIZ_SHORT_LONG,
+    HORIZ_LONG_SHORT,
+    HORIZ_LONG_LONG
+};
+
+// Return code for encoder and decoder
+enum {
+    G5_SUCCESS = 0,
+    G5_INVALID_PARAMETER,
+    G5_DECODE_ERROR,
+    G5_UNSUPPORTED_FEATURE,
+    G5_ENCODE_COMPLETE,
+    G5_DECODE_COMPLETE,
+    G5_NOT_INITIALIZED,
+    G5_DATA_OVERFLOW,
+    G5_MAX_FLIPS_EXCEEDED
+};
+//
+// Decoder state
+//
+typedef struct g5_dec_image_tag
+{
+    int iWidth, iHeight; // image size
+    int iError;
+    int y; // last y value drawn
+    int iVLCSize;
+    int iHLen; // length of 'long' horizontal codes for this image
+    int iPitch; // width in bytes of output buffer
+    uint32_t u32Accum; // fractional scaling accumulator
+    uint32_t ulBitOff, ulBits; // vlc decode variables
+    uint8_t *pSrc, *pBuf; // starting & current buffer pointer
+    int16_t *pCur, *pRef; // current state of current vs reference flips
+    int16_t CurFlips[MAX_IMAGE_FLIPS];
+    int16_t RefFlips[MAX_IMAGE_FLIPS];
+} G5DECIMAGE;
+
+// Due to unaligned memory causing an exception, we have to do these macros the slow way
+#ifdef __AVR__
+// assume PROGMEM as the source of data
+inline uint32_t TIFFMOTOLONG(uint8_t *p)
+{
+  uint32_t u32 = pgm_read_dword(p);
+  return __builtin_bswap32(u32);
+}
+#else
+#define TIFFMOTOLONG(p) (((uint32_t)(*p)<<24UL) + ((uint32_t)(*(p+1))<<16UL) + ((uint32_t)(*(p+2))<<8UL) + (uint32_t)(*(p+3)))
+#endif // __AVR__
+
+#define TOP_BIT 0x80000000
+#define MAX_VALUE 0xffffffff
+// Must be a 32-bit target processor
+#define REGISTER_WIDTH 32
+#define BIGUINT uint32_t
+
+//
+// G5 Encoder
+//
+
+typedef struct g5_buffered_bits
+{
+unsigned char *pBuf; // buffer pointer
+uint32_t ulBits; // buffered bits
+uint32_t ulBitOff; // current bit offset
+uint32_t ulDataSize; // available data
+} G5_BUFFERED_BITS;
+
+//
+// Encoder state
+//
+typedef struct g5_enc_image_tag
+{
+    int iWidth, iHeight; // image size
+    int iError;
+    int y; // last y encoded
+    int iOutSize;
+    int iDataSize; // generated output size
+    uint8_t *pOutBuf;
+    int16_t *pCur, *pRef; // pointers to swap current and reference lines
+    G5_BUFFERED_BITS bb;
+    int16_t CurFlips[MAX_IMAGE_FLIPS];
+    int16_t RefFlips[MAX_IMAGE_FLIPS];
+} G5ENCIMAGE;
+
+#ifdef __cplusplus
+//
+// The G5 classes wrap portable C code which does the actual work
+//
+class G5ENCODER
+{
+  public:
+    int init(int iWidth, int iHeight, uint8_t *pOut, int iOutSize);
+    int encodeLine(uint8_t *pPixels);
+    int size();
+
+  private:
+    G5ENCIMAGE _g5enc;
+};
+class G5DECODER
+{
+  public:
+    int init(int iWidth, int iHeight, uint8_t *pData, int iDataSize);
+    int decodeLine(uint8_t *pOut);
+
+  private:
+    G5DECIMAGE _g5dec;
+};
+#endif // __cplusplus
+
+#endif // __GROUP5__

lib/CrossPointFont/Group5/g5dec.inl

@@ -0,0 +1,346 @@
+//
+// Group5
+// A 1-bpp image decoder
+//
+// Written by Larry Bank (bitbank@pobox.com)
+//
+// SPDX-FileCopyrightText: 2024 BitBank Software, Inc.
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include "Group5.h"
+
+/*
+ The code tree that follows has: bit_length, decode routine
+ These codes are for Group 4 (MMR) decoding
+
+ 01 = vertneg1, 11h = vert1, 20h = horiz, 30h = pass, 12h = vert2
+ 02 = vertneg2, 13h = vert3, 03 = vertneg3, 90h = trash
+*/
+
+static const uint8_t code_table[128]  =
+        {0x90, 0, 0x40, 0,       /* trash, uncompr mode - codes 0 and 1 */
+         3, 7,                   /* V(-3) pos = 2 */
+         0x13, 7,                /* V(3)  pos = 3 */
+         2, 6, 2, 6,             /* V(-2) pos = 4,5 */
+         0x12, 6, 0x12, 6,       /* V(2)  pos = 6,7 */
+         0x30, 4, 0x30, 4, 0x30, 4, 0x30, 4,    /* pass  pos = 8->F */
+         0x30, 4, 0x30, 4, 0x30, 4, 0x30, 4,
+         0x20, 3, 0x20, 3, 0x20, 3, 0x20, 3,    /* horiz pos = 10->1F */
+         0x20, 3, 0x20, 3, 0x20, 3, 0x20, 3,
+         0x20, 3, 0x20, 3, 0x20, 3, 0x20, 3,
+         0x20, 3, 0x20, 3, 0x20, 3, 0x20, 3,
+/* V(-1) pos = 20->2F */
+         1, 3, 1, 3, 1, 3, 1, 3,
+         1, 3, 1, 3, 1, 3, 1, 3,
+         1, 3, 1, 3, 1, 3, 1, 3,
+         1, 3, 1, 3, 1, 3, 1, 3,
+         0x11, 3, 0x11, 3, 0x11, 3, 0x11, 3,   /* V(1)   pos = 30->3F */
+         0x11, 3, 0x11, 3, 0x11, 3, 0x11, 3,
+         0x11, 3, 0x11, 3, 0x11, 3, 0x11, 3,
+         0x11, 3, 0x11, 3, 0x11, 3, 0x11, 3};
+
+static int g5_decode_init(G5DECIMAGE *pImage, int iWidth, int iHeight, uint8_t *pData, int iDataSize)
+{
+    if (pImage == NULL || iWidth < 1 || iHeight < 1 || pData == NULL || iDataSize < 1)
+        return G5_INVALID_PARAMETER;
+    
+    pImage->iVLCSize = iDataSize;
+    pImage->pSrc = pData;
+    pImage->ulBitOff = 0;
+    pImage->y = 0;
+    pImage->ulBits = TIFFMOTOLONG(pData); // preload the first 32 bits of data
+    pImage->iWidth = iWidth;
+    pImage->iHeight = iHeight;
+    return G5_SUCCESS;
+
+} /* g5_decode_init() */
+
+static void G5DrawLine(G5DECIMAGE *pPage, int16_t *pCurFlips, uint8_t *pOut)
+{
+    int x, len, run;
+    uint8_t lBit, rBit, *p;
+    int iStart = 0, xright = pPage->iWidth;
+    uint8_t *pDest;
+
+    iStart = 0;
+    
+    pDest = pOut;
+    len = (xright+7)>>3; // number of bytes to generate
+    for (x=0; x<len; x++) {
+        pOut[x] = 0xff; // start with white and only draw the black runs
+    }
+    x = 0;
+    while (x < xright) { // while the scaled x is within the window bounds
+        x = *pCurFlips++; // black starting point
+        run = *pCurFlips++ - x; // get the black run
+        x -= iStart;
+        if (x >= xright || run == 0)
+             break;
+        if ((x + run) > 0) { /* If the run is visible, draw it */
+             if (x < 0) {
+                run += x; /* draw only visible part of run */
+                x = 0;
+             }
+            if ((x + run) > xright) { /* Don't let it go off right edge */
+                run = xright - x;
+            }
+            /* Draw this run */
+            lBit = 0xff << (8 - (x & 7));
+            rBit = 0xff >> ((x + run) & 7);
+            len = ((x+run)>>3) - (x >> 3);
+            p = &pDest[x >> 3];
+            if (len == 0) {
+                lBit |= rBit;
+                *p &= lBit;
+            } else {
+                *p++ &= lBit;
+                while (len > 1) {
+                   *p++ = 0;
+                   len--;
+                }
+                *p = rBit;
+            }
+        } // visible run
+    } /* while drawing line */
+} /* G5DrawLine() */
+//
+// Initialize internal structures to decode the image
+//
+static void Decode_Begin(G5DECIMAGE *pPage)
+{
+    int i, xsize;
+    int16_t *CurFlips, *RefFlips;
+    
+    xsize = pPage->iWidth;
+    
+    RefFlips = pPage->RefFlips;
+    CurFlips = pPage->CurFlips;
+    
+    /* Seed the current and reference line with XSIZE for V(0) codes */
+     for (i=0; i<MAX_IMAGE_FLIPS-2; i++) {
+         RefFlips[i] = xsize;
+         CurFlips[i] = xsize;
+     }
+    /* Prefill both current and reference lines with 7fff to prevent it from
+       walking off the end if the data gets bunged and the current X is > XSIZE
+       3-16-94 */
+     CurFlips[i] = RefFlips[i] = 0x7fff;
+     CurFlips[i+1] = RefFlips[i+1] = 0x7fff;
+    
+    pPage->pCur = CurFlips;
+    pPage->pRef = RefFlips;
+    pPage->pBuf = pPage->pSrc;
+    pPage->ulBits = TIFFMOTOLONG(pPage->pSrc); // load 32 bits to start
+    pPage->ulBitOff = 0;
+    // Calculate the number of bits needed for a long horizontal code
+#ifdef __AVR__
+    pPage->iHLen = 16 - __builtin_clz(pPage->iWidth);
+#else
+    pPage->iHLen = 32 - __builtin_clz(pPage->iWidth);
+#endif
+} /* Decode_Begin() */
+//
+// Decode a single line of G5 data (private function)
+//
+static int DecodeLine(G5DECIMAGE *pPage)
+{
+    signed int a0, a0_p, b1;
+    int16_t *pCur, *pRef, *RefFlips, *CurFlips;
+    int xsize, tot_run=0, tot_run1 = 0;
+    int32_t sCode;
+    uint32_t lBits;
+    uint32_t ulBits, ulBitOff;
+    uint8_t *pBuf/*, *pBufEnd*/;
+    uint32_t u32HMask, u32HLen; // horizontal code mask and length
+
+    pCur = CurFlips = pPage->pCur;
+    pRef = RefFlips = pPage->pRef;
+    ulBits = pPage->ulBits;
+    ulBitOff = pPage->ulBitOff;
+    pBuf = pPage->pBuf;
+    // pBufEnd = &pPage->pSrc[pPage->iVLCSize];
+    u32HLen = pPage->iHLen;
+    u32HMask = (1 << u32HLen) - 1;
+    a0 = -1;
+    xsize = pPage->iWidth;
+    
+    while (a0 < xsize) {  /* Decode this line */
+        if (ulBitOff > (REGISTER_WIDTH-8)) { // need at least 7 unused bits
+            pBuf += (ulBitOff >> 3);
+            ulBitOff &= 7;
+            ulBits = TIFFMOTOLONG(pBuf);
+        }
+        if ((int32_t)(ulBits << ulBitOff) < 0) { /* V(0) code is the most frequent case (1 bit) */
+            a0 = *pRef++;
+            ulBitOff++; // length = 1 bit
+            *pCur++ = a0;
+        } else { /* Slower method for the less frequence codes */
+            lBits = (ulBits >> ((REGISTER_WIDTH - 8) - ulBitOff)) & 0xfe; /* Only the first 7 bits are useful */
+            sCode = code_table[lBits]; /* Get the code type as an 8-bit value */
+            ulBitOff += code_table[lBits+1]; /* Get the code length */
+            switch (sCode) {
+                case 1: /* V(-1) */
+                case 2: /* V(-2) */
+                case 3: /* V(-3) */
+                    a0 = *pRef - sCode;  /* A0 = B1 - x */
+                    *pCur++ = a0;
+                    if (pRef == RefFlips) {
+                        pRef += 2;
+                    }
+                    pRef--;
+                    while (a0 >= *pRef) {
+                        pRef += 2;
+                    }
+                    break;
+
+                case 0x11: /* V(1) */
+                case 0x12: /* V(2) */
+                case 0x13: /* V(3) */
+                    a0 = *pRef++;   /* A0 = B1 */
+                    b1 = a0;
+                    a0 += sCode & 7;      /* A0 = B1 + x */
+                    if (b1 != xsize && a0 < xsize) {
+                        while (a0 >= *pRef) {
+                            pRef += 2;
+                        }
+                    }
+                    if (a0 > xsize) {
+                        a0 = xsize;
+                    }
+                    *pCur++ = a0;
+                    break;
+
+                case 0x20: /* Horizontal codes */
+                    if (ulBitOff > (REGISTER_WIDTH-16)) { // need at least 16 unused bits
+                        pBuf += (ulBitOff >> 3);
+                        ulBitOff &= 7;
+                        ulBits = TIFFMOTOLONG(pBuf);
+                    }
+                    a0_p = a0;
+                    if (a0 < 0) {
+                        a0_p = 0;
+                    }
+                    lBits = (ulBits >> ((REGISTER_WIDTH - 2) - ulBitOff)) & 0x3; // get 2-bit prefix for code type
+                    // There are 4 possible horizontal cases: short/short, short/long, long/short, long/long
+                    // These are encoded in a 2-bit prefix code, followed by 3 bits for short or N bits for long code
+                    // N is the log base 2 of the image width (e.g. 320 pixels requires 9 bits)
+                    ulBitOff += 2;
+                    switch (lBits) {
+                        case HORIZ_SHORT_SHORT:
+                            tot_run = (ulBits >> ((REGISTER_WIDTH - 3) - ulBitOff)) & 0x7; // get 3-bit short length
+                            ulBitOff += 3;
+                            tot_run1 = (ulBits >> ((REGISTER_WIDTH - 3) - ulBitOff)) & 0x7; // get 3-bit short length
+                            ulBitOff += 3;
+                            break;
+                        case HORIZ_SHORT_LONG:
+                            tot_run = (ulBits >> ((REGISTER_WIDTH - 3) - ulBitOff)) & 0x7; // get 3-bit short length
+                            ulBitOff += 3;
+                            tot_run1 = (ulBits >> ((REGISTER_WIDTH - u32HLen) - ulBitOff)) & u32HMask; // get long length
+                            ulBitOff += u32HLen;
+                            break;
+                        case HORIZ_LONG_SHORT:
+                            tot_run = (ulBits >> ((REGISTER_WIDTH - u32HLen) - ulBitOff)) & u32HMask; // get long length
+                            ulBitOff += u32HLen;
+                            tot_run1 = (ulBits >> ((REGISTER_WIDTH - 3) - ulBitOff)) & 0x7; // get 3-bit short length
+                            ulBitOff += 3;
+                            break;
+                        case HORIZ_LONG_LONG:
+                            tot_run = (ulBits >> ((REGISTER_WIDTH - u32HLen) - ulBitOff)) & u32HMask; // get long length
+                            ulBitOff += u32HLen;
+                            if (ulBitOff > (REGISTER_WIDTH-16)) { // need at least 16 unused bits
+                                pBuf += (ulBitOff >> 3);
+                                ulBitOff &= 7;
+                                ulBits = TIFFMOTOLONG(pBuf);
+                            }
+                            tot_run1 = (ulBits >> ((REGISTER_WIDTH - u32HLen) - ulBitOff)) & u32HMask; // get long length
+                            ulBitOff += u32HLen;
+                            break;
+                    } // switch on lBits
+                    a0 = a0_p + tot_run;
+                    *pCur++ = a0;
+                    a0 += tot_run1;
+                    if (a0 < xsize) {
+                        while (a0 >= *pRef) {
+                            pRef += 2;
+                        }
+                    }
+                    *pCur++ = a0;
+                    break;
+
+                case 0x30: /* Pass code */
+                    pRef++;         /* A0 = B2, iRef+=2 */
+                    a0 = *pRef++;
+                break;
+                     
+                default: /* ERROR */
+                   pPage->iError = G5_DECODE_ERROR;
+                   goto pilreadg5z;
+             } /* switch */
+          } /* Slow climb */
+       }
+    /*--- Convert flips data into run lengths ---*/
+    *pCur++ = xsize;  /* Terminate the line properly */
+    *pCur++ = xsize;
+pilreadg5z:
+    // Save the current VLC decoder state
+    pPage->ulBits = ulBits;
+    pPage->ulBitOff = ulBitOff;
+    pPage->pBuf = pBuf;
+    return pPage->iError;
+} /* DecodeLine() */
+//
+// Decompress the VLC data
+//
+static int g5_decode_line(G5DECIMAGE *pPage, uint8_t *pOut)
+{
+    int rc;
+    uint8_t *pBufEnd;
+    int16_t *t1;
+    
+    if (pPage == NULL || pOut == NULL)
+        return G5_INVALID_PARAMETER;
+    if (pPage->y >= pPage->iHeight)
+        return G5_DECODE_COMPLETE;
+    
+    pPage->iError = G5_SUCCESS;
+    
+    if (pPage->y == 0) { // first time through
+        Decode_Begin(pPage);
+    }
+    pBufEnd = &pPage->pSrc[pPage->iVLCSize];
+    
+   if (pPage->pBuf >= pBufEnd) { // read past the end, error
+       pPage->iError = G5_DECODE_ERROR;
+       return G5_DECODE_ERROR;
+   }
+   rc = DecodeLine(pPage);
+   if (rc == G5_SUCCESS) {
+       // Draw the current line
+       G5DrawLine(pPage, pPage->pCur, pOut);
+       /*--- Swap current and reference lines ---*/
+       t1 = pPage->pRef;
+       pPage->pRef = pPage->pCur;
+       pPage->pCur = t1;
+       pPage->y++;
+       if (pPage->y >= pPage->iHeight) {
+           pPage->iError = G5_DECODE_COMPLETE;
+       }
+   } else {
+       pPage->iError = rc;
+   }
+    return pPage->iError;
+} /* Decode() */

lib/CrossPointFont/Group5/g5enc.inl

@@ -0,0 +1,315 @@
+//
+// G5 Encoder
+// A 1-bpp image encoding library
+//
+// Written by Larry Bank (bitbank@pobox.com)
+//
+// SPDX-FileCopyrightText: 2024 BitBank Software, Inc.
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include "Group5.h"
+
+/* Number of consecutive 1 bits in a byte from MSB to LSB */
+static uint8_t bitcount[256] =
+        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0-15 */
+         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 16-31 */
+         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 32-47 */
+         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 48-63 */
+         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 64-79 */
+         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 80-95 */
+         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 96-111 */
+         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 112-127 */
+         1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,  /* 128-143 */
+         1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,  /* 144-159 */
+         1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,  /* 160-175 */
+         1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,  /* 176-191 */
+         2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,  /* 192-207 */
+         2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,  /* 208-223 */
+         3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,  /* 224-239 */
+         4,4,4,4,4,4,4,4,5,5,5,5,6,6,7,8}; /* 240-255 */
+
+/* Table of vertical codes for G5 encoding */
+/* code followed by length, starting with v(-3) */
+static const uint8_t vtable[14] =
+        {3,7,     /* V(-3) = 0000011 */
+         3,6,     /* V(-2) = 000011  */
+         3,3,     /* V(-1) = 011     */
+         1,1,     /* V(0)  = 1       */
+         2,3,     /* V(1)  = 010     */
+         2,6,     /* V(2)  = 000010  */
+         2,7};    /* V(3)  = 0000010 */
+
+
+static void G5ENCInsertCode(G5_BUFFERED_BITS *bb, BIGUINT ulCode, int iLen)
+{
+    if ((bb->ulBitOff + iLen) > REGISTER_WIDTH) { // need to write data
+        bb->ulBits |= (ulCode >> (bb->ulBitOff + iLen - REGISTER_WIDTH)); // partial bits on first word
+        *(BIGUINT *)bb->pBuf = __builtin_bswap32(bb->ulBits);
+        bb->pBuf += sizeof(BIGUINT);
+        bb->ulBits = ulCode << ((REGISTER_WIDTH*2) - (bb->ulBitOff + iLen));
+        bb->ulBitOff += iLen - REGISTER_WIDTH;
+    } else {
+        bb->ulBits |= (ulCode << (REGISTER_WIDTH - bb->ulBitOff - iLen));
+        bb->ulBitOff += iLen;
+    }
+} /* G5ENCInsertCode() */
+//
+// Flush any buffered bits to the output
+//
+static void G5ENCFlushBits(G5_BUFFERED_BITS *bb)
+{
+    while (bb->ulBitOff >= 8)
+    {
+        *bb->pBuf++ = (unsigned char) (bb->ulBits >> (REGISTER_WIDTH - 8));
+        bb->ulBits <<= 8;
+        bb->ulBitOff -= 8;
+    }
+    if (bb->ulBitOff) { // partial byte?
+        *bb->pBuf++ = (unsigned char) (bb->ulBits >> (REGISTER_WIDTH - 8));
+    }
+    bb->ulBitOff = 0;
+    bb->ulBits = 0;
+} /* G5ENCFlushBits() */
+//
+// Initialize the compressor
+// This must be called before adding data to the output
+//
+static int g5_encode_init(G5ENCIMAGE *pImage, int iWidth, int iHeight, uint8_t *pOut, int iOutSize)
+{
+    int iError = G5_SUCCESS;
+    
+    if (pImage == NULL || iHeight <= 0)
+        return G5_INVALID_PARAMETER;
+    pImage->iWidth = iWidth; // image size
+    pImage->iHeight = iHeight;
+    pImage->pCur = pImage->CurFlips;
+    pImage->pRef = pImage->RefFlips;
+    pImage->pOutBuf = pOut; // optional output buffer
+    pImage->iOutSize = iOutSize; // output buffer pre-allocated size
+    pImage->iDataSize = 0; // no data yet
+    pImage->y = 0;
+    for (int i=0; i<MAX_IMAGE_FLIPS; i++) {
+        pImage->RefFlips[i] = iWidth;
+        pImage->CurFlips[i] = iWidth;
+    }
+    pImage->bb.pBuf = pImage->pOutBuf;
+    pImage->bb.ulBits = 0;
+    pImage->bb.ulBitOff = 0;
+    pImage->iError = iError;
+    return iError;
+} /* g5_encode_init() */
+//
+// Internal function to convert uncompressed 1-bit per pixel data
+// into the run-end data needed to feed the G5 encoder
+//
+static int G5ENCEncodeLine(unsigned char *buf, int xsize, int16_t *pDest)
+{
+int iCount, xborder;
+uint8_t i, c;
+int8_t cBits;
+int iLen;
+int16_t x;
+int16_t *pLimit = pDest + (MAX_IMAGE_FLIPS-4);
+
+   xborder = xsize;
+   iCount = (xsize + 7) >> 3; /* Number of bytes per line */
+   cBits = 8;
+   iLen = 0; /* Current run length */
+   x = 0;
+
+   c = *buf++;  /* Get the first byte to start */
+   iCount--;
+   while (iCount >=0) {
+      if (pDest >= pLimit) return G5_MAX_FLIPS_EXCEEDED;
+      i = bitcount[c]; /* Get the number of consecutive bits */
+      iLen += i; /* Add this length to total run length */
+      c <<= i;
+      cBits -= i; /* Minus the number in a byte */
+      if (cBits <= 0)
+         {
+         iLen += cBits; /* Adjust length */
+         cBits = 8;
+         c = *buf++;  /* Get another data byte */
+         iCount--;
+         continue; /* Keep doing white until color change */
+         }
+      c = ~c; /* flip color to count black pixels */
+   /* Store the white run length */
+      xborder -= iLen;
+      if (xborder < 0)
+         {
+         iLen += xborder; /* Make sure run length is not past end */
+         break;
+         }
+      x += iLen;
+      *pDest++ = x;
+      iLen = 0;
+doblack:
+      i = bitcount[c]; /* Get consecutive bits */
+      iLen += i; /* Add to total run length */
+      c <<= i;
+      cBits -= i;
+      if (cBits <= 0)
+         {
+         iLen += cBits; /* Adjust length */
+         cBits = 8;
+         c = *buf++;  /* Get another data byte */
+         c = ~c;   /* Flip color to find black */
+         iCount--;
+         if (iCount < 0)
+            break;
+         goto doblack;
+         }
+   /* Store the black run length */
+      c = ~c;       /* Flip color again to find white pixels */
+      xborder -= iLen;
+      if (xborder < 0)
+         {
+         iLen += xborder; /* Make sure run length is not past end */
+         break;
+         }
+      x += iLen;
+      *pDest++ = x;
+      iLen = 0;
+      } /* while */
+
+   if (pDest >= pLimit) return G5_MAX_FLIPS_EXCEEDED;
+   *pDest++ = xsize;
+   *pDest++ = xsize; // Store a few more XSIZE to end the line
+   *pDest++ = xsize; // so that the compressor doesn't go past
+   *pDest++ = xsize; // the end of the line
+   return G5_SUCCESS;
+} /* G5ENCEncodeLine() */
+//
+// Compress a line of pixels and add it to the output
+// the input format is expected to be MSB (most significant bit) first
+// for example, pixel 0 is in byte 0 at bit 7 (0x80)
+// Returns G5ENC_SUCCESS for each line if all is well and G5ENC_IMAGE_COMPLETE
+// for the last line
+//
+static int g5_encode_encodeLine(G5ENCIMAGE *pImage, uint8_t *pPixels)
+{
+int16_t a0, a0_c, b2, a1;
+int dx, run1, run2;
+int xsize, iErr, iHighWater;
+int iCur, iRef, iLen;
+int iHLen; // number of bits for long horizontal codes
+int16_t *CurFlips, *RefFlips;
+G5_BUFFERED_BITS bb;
+
+    if (pImage == NULL || pPixels == NULL)
+        return G5_INVALID_PARAMETER;
+    iHighWater = pImage->iOutSize - 32;
+    iHLen = 32 - __builtin_clz(pImage->iWidth);
+    memcpy(&bb, &pImage->bb, sizeof(G5_BUFFERED_BITS)); // keep local copy
+    CurFlips = pImage->pCur;
+    RefFlips = pImage->pRef;
+    xsize = pImage->iWidth; /* For performance reasons */
+
+    // Convert the incoming line of pixels into run-end data
+    iErr = G5ENCEncodeLine(pPixels, pImage->iWidth, CurFlips);
+    if (iErr != G5_SUCCESS) return iErr; // exceeded the maximum number of color changes
+    /* Encode this line as G5 */
+    a0 = a0_c = 0;
+    iCur = iRef = 0;
+    while (a0 < xsize) {
+        b2 = RefFlips[iRef+1];
+        a1 = CurFlips[iCur];
+        if (b2 < a1) { /* Is b2 to the left of a1? */
+            /* yes, do pass mode */
+            a0 = b2;
+            iRef += 2;
+            G5ENCInsertCode(&bb, 1, 4); /* Pass code = 0001 */
+        } else { /* Try vertical and horizontal mode */
+            dx = RefFlips[iRef] - a1;  /* b1 - a1 */
+            if (dx > 3 || dx < -3) { /* Horizontal mode */
+                G5ENCInsertCode(&bb, 1, 3); /* Horizontal code = 001 */
+                run1 = CurFlips[iCur] - a0;
+                run2 = CurFlips[iCur+1] - CurFlips[iCur];
+                if (run1 < 8) {
+                    if (run2 < 8) { // short, short
+                        G5ENCInsertCode(&bb, HORIZ_SHORT_SHORT, 2); /* short, short = 00 */
+                        G5ENCInsertCode(&bb, run1, 3);
+                        G5ENCInsertCode(&bb, run2, 3);
+                    } else { // short, long
+                        G5ENCInsertCode(&bb, HORIZ_SHORT_LONG, 2); /* short, long = 01 */
+                        G5ENCInsertCode(&bb, run1, 3);
+                        G5ENCInsertCode(&bb, run2, iHLen);
+                    }
+                } else { // first run is long
+                    if (run2 < 8) { // long, short
+                        G5ENCInsertCode(&bb, HORIZ_LONG_SHORT, 2); /* long, short = 10 */
+                        G5ENCInsertCode(&bb, run1, iHLen);
+                        G5ENCInsertCode(&bb, run2, 3);
+                    } else { // long, long
+                        G5ENCInsertCode(&bb, HORIZ_LONG_LONG, 2); /* long, long = 11 */
+                        G5ENCInsertCode(&bb, run1, iHLen);
+                        G5ENCInsertCode(&bb, run2, iHLen);
+                    }
+                }
+               a0 = CurFlips[iCur+1]; /* a0 = a2 */
+               if (a0 != xsize) {
+                  iCur += 2; /* Skip two color flips */
+                   while (RefFlips[iRef] != xsize && RefFlips[iRef] <= a0) {
+                       iRef += 2;
+                   }
+                }
+            } else { /* Vertical mode */
+               dx = (dx + 3) * 2; /* Convert to index table */
+                G5ENCInsertCode(&bb, vtable[dx], vtable[dx+1]);
+                a0 = a1;
+                a0_c = 1-a0_c;
+                if (a0 != xsize) {
+                    if (iRef != 0) {
+                        iRef -= 2;
+                    }
+                    iRef++; /* Skip a color change in cur and ref */
+                    iCur++;
+                    while (RefFlips[iRef] <= a0 && RefFlips[iRef] != xsize) {
+                        iRef += 2;
+                    }
+                }
+            } /* vertical mode */
+        } /* horiz/vert mode */
+    } /* while x < xsize */
+    iLen = (int)(bb.pBuf-pImage->pOutBuf);
+    if (iLen >= iHighWater) { // not enough space
+           pImage->iError = iErr = G5_DATA_OVERFLOW; // we don't have a better error
+           return iErr;
+    }
+    if (pImage->y == pImage->iHeight-1) { // last line of image
+        G5ENCFlushBits(&bb); // output the final buffered bits
+        // wrap up final output
+        pImage->iDataSize = 1 + (int)(bb.pBuf-pImage->pOutBuf);
+        iErr = G5_ENCODE_COMPLETE;
+    }
+    pImage->pCur = RefFlips; // swap current and reference lines
+    pImage->pRef = CurFlips;
+    pImage->y++;
+    memcpy(&pImage->bb, &bb, sizeof(bb));
+    return iErr;
+} /* g5_encode_encodeLine() */
+//
+// Returns the number of bytes of G5 created by the encoder
+//
+static int g5_encode_getOutSize(G5ENCIMAGE *pImage)
+{
+    int iSize = 0;
+    if (pImage != NULL)
+        iSize = pImage->iDataSize;
+    return iSize;
+} /* g5_encode_getOutSize() */

lib/CrossPointFont/builtinFonts/all.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <builtinFonts/bookerly_12.h>
+#include <builtinFonts/bookerly_14.h>
+#include <builtinFonts/bookerly_16.h>
+#include <builtinFonts/bookerly_18.h>
+#include <builtinFonts/notosans_8.h>
+#include <builtinFonts/notosans_12.h>
+#include <builtinFonts/notosans_14.h>
+#include <builtinFonts/notosans_16.h>
+#include <builtinFonts/notosans_18.h>
+#include <builtinFonts/opendyslexic_8.h>
+#include <builtinFonts/opendyslexic_10.h>
+#include <builtinFonts/opendyslexic_12.h>
+#include <builtinFonts/opendyslexic_14.h>
+#include <builtinFonts/ubuntu_10.h>
+#include <builtinFonts/ubuntu_12.h>

lib/CrossPointFont/builtinFonts/build-font-ids.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+set -e
+
+cd "$(dirname "$0")"
+
+echo "// The contents of this file are generated by ./lib/CrossPointFont/builtinFonts/build-font-ids.sh"
+echo "#pragma once"
+echo ""
+
+echo "#define BOOKERLY_12_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./bookerly_12.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define BOOKERLY_14_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./bookerly_14.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define BOOKERLY_16_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./bookerly_16.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define BOOKERLY_18_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./bookerly_18.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define NOTOSANS_12_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./notosans_12.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define NOTOSANS_14_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./notosans_14.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define NOTOSANS_16_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./notosans_16.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define NOTOSANS_18_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./notosans_18.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define OPENDYSLEXIC_8_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./opendyslexic_8.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define OPENDYSLEXIC_10_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./opendyslexic_10.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define OPENDYSLEXIC_12_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./opendyslexic_12.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define OPENDYSLEXIC_14_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./opendyslexic_14.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define UI_10_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./ubuntu_10.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define UI_12_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./ubuntu_12.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"
+echo "#define SMALL_FONT_ID ($(ruby -rdigest -e 'puts Digest::SHA256.hexdigest(File.read("./notosans_8.h")).to_i(16) % (2 ** 32) - (2 ** 31)'))"

lib/CrossPointFont/builtinFonts/convert-builtin-fonts.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+set -e
+
+cd "$(dirname "$0")"
+
+BOOKERLY_FONT_SIZES=(12 14 16 18)
+NOTOSANS_FONT_SIZES=(12 14 16 18)
+OPENDYSLEXIC_FONT_SIZES=(8 10 12 14)
+
+for size in ${BOOKERLY_FONT_SIZES[@]}; do
+  font_name="bookerly_${size}"
+  font_path_prefix="./source/Bookerly/Bookerly-"
+  output_path="./${font_name}.h"
+  ../fontconvert/fontconvert "${font_path_prefix}Regular.ttf" -b "${font_path_prefix}Bold.ttf" -i "${font_path_prefix}Italic.ttf" -bi "${font_path_prefix}BoldItalic.ttf" -o $output_path -p $size
+done
+
+for size in ${NOTOSANS_FONT_SIZES[@]}; do
+  font_name="notosans_${size}"
+  font_path_prefix="./source/NotoSans/NotoSans-"
+  output_path="./${font_name}.h"
+  ../fontconvert/fontconvert "${font_path_prefix}Regular.ttf" -b "${font_path_prefix}Bold.ttf" -i "${font_path_prefix}Italic.ttf" -bi "${font_path_prefix}BoldItalic.ttf" -o $output_path -p $size
+done
+
+for size in ${OPENDYSLEXIC_FONT_SIZES[@]}; do
+  font_name="opendyslexic_${size}"
+  font_path_prefix="./source/OpenDyslexic/OpenDyslexic-"
+  output_path="./${font_name}.h"
+  ../fontconvert/fontconvert "${font_path_prefix}Regular.otf" -b "${font_path_prefix}Bold.otf" -i "${font_path_prefix}Italic.otf" -bi "${font_path_prefix}BoldItalic.otf" -o $output_path -p $size
+done
+
+UI_FONT_SIZES=(10 12)
+UI_FONT_STYLES=("Regular" "Bold")
+
+for size in ${UI_FONT_SIZES[@]}; do
+  font_name="ubuntu_${size}"
+  font_path_prefix="./source/Ubuntu/Ubuntu-"
+  output_path="./${font_name}.h"
+  ../fontconvert/fontconvert "${font_path_prefix}Regular.ttf" -b "${font_path_prefix}Bold.ttf" -o $output_path -p $size
+done
+
+../fontconvert/fontconvert ./source/NotoSans/NotoSans-Regular.ttf -o ./notosans_8.h -p 8

lib/CrossPointFont/builtinFonts/source/NotoSans/OFL.txt

@@ -0,0 +1,93 @@
+Copyright 2022 The Noto Project Authors (https://github.com/notofonts/latin-greek-cyrillic)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://openfontlicense.org
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

lib/CrossPointFont/builtinFonts/source/OpenDyslexic/OFL.txt

@@ -0,0 +1,94 @@
+Copyright (c) 2019-07-29, Abbie Gonzalez (https://abbiecod.es|support@abbiecod.es),
+with Reserved Font Name OpenDyslexic.
+Copyright (c) 12/2012 - 2019
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

lib/CrossPointFont/builtinFonts/source/Ubuntu/UFL.txt

@@ -0,0 +1,96 @@
+-------------------------------
+UBUNTU FONT LICENCE Version 1.0
+-------------------------------
+
+PREAMBLE
+This licence allows the licensed fonts to be used, studied, modified and
+redistributed freely. The fonts, including any derivative works, can be
+bundled, embedded, and redistributed provided the terms of this licence
+are met. The fonts and derivatives, however, cannot be released under
+any other licence. The requirement for fonts to remain under this
+licence does not require any document created using the fonts or their
+derivatives to be published under this licence, as long as the primary
+purpose of the document is not to be a vehicle for the distribution of
+the fonts.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this licence and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Original Version" refers to the collection of Font Software components
+as received under this licence.
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to
+a new environment.
+
+"Copyright Holder(s)" refers to all individuals and companies who have a
+copyright ownership of the Font Software.
+
+"Substantially Changed" refers to Modified Versions which can be easily
+identified as dissimilar to the Font Software by users of the Font
+Software comparing the Original Version with the Modified Version.
+
+To "Propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification and with or without charging
+a redistribution fee), making available to the public, and in some
+countries other activities as well.
+
+PERMISSION & CONDITIONS
+This licence does not grant any rights under trademark law and all such
+rights are reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of the Font Software, to propagate the Font Software, subject to
+the below conditions:
+
+1) Each copy of the Font Software must contain the above copyright
+notice and this licence. These can be included either as stand-alone
+text files, human-readable headers or in the appropriate machine-
+readable metadata fields within text or binary files as long as those
+fields can be easily viewed by the user.
+
+2) The font name complies with the following:
+(a) The Original Version must retain its name, unmodified.
+(b) Modified Versions which are Substantially Changed must be renamed to
+avoid use of the name of the Original Version or similar names entirely.
+(c) Modified Versions which are not Substantially Changed must be
+renamed to both (i) retain the name of the Original Version and (ii) add
+additional naming elements to distinguish the Modified Version from the
+Original Version. The name of such Modified Versions must be the name of
+the Original Version, with "derivative X" where X represents the name of
+the new work, appended to that name.
+
+3) The name(s) of the Copyright Holder(s) and any contributor to the
+Font Software shall not be used to promote, endorse or advertise any
+Modified Version, except (i) as required by this licence, (ii) to
+acknowledge the contribution(s) of the Copyright Holder(s) or (iii) with
+their explicit written permission.
+
+4) The Font Software, modified or unmodified, in part or in whole, must
+be distributed entirely under this licence, and must not be distributed
+under any other licence. The requirement for fonts to remain under this
+licence does not affect any document created using the Font Software,
+except any version of the Font Software extracted from a document
+created using the Font Software may only be distributed under this
+licence.
+
+TERMINATION
+This licence becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER
+DEALINGS IN THE FONT SOFTWARE.

lib/CrossPointFont/fontconvert/.gitignore

@@ -0,0 +1 @@
+fontconvert

lib/CrossPointFont/fontconvert/Makefile

@@ -0,0 +1,12 @@
+all: fontconvert
+
+CC     = gcc
+CFLAGS = -Wall -I/usr/local/include/freetype2 -I/usr/include/freetype2 -I/usr/include -I/opt/homebrew/include/freetype2
+LIBS   = -L/opt/homebrew/lib -lfreetype
+
+fontconvert: main.c ../Group5/Group5.h
+	$(CC) $(CFLAGS) main.c $(LIBS) -o fontconvert
+	strip fontconvert
+
+clean:
+	rm -f fontconvert

lib/CrossPointFont/fontconvert/main.c

@@ -0,0 +1,553 @@
+//
+// TrueType to CrossPoint font converter
+// Copyright (c) 2024 BitBank Software, inc.
+// Written by Larry Bank, adapted by Dave Allie for CrossPoint
+// August 31, 2024
+// The CrossPoint font format is a losslessly compressed bitmap font of a single point size with multiple variants
+// This was built entirely on the back of Larry Bank's bb_font format.
+// The data is compressed with a compression scheme based on CCITT T.6
+// The font structure includes overall size, per-character glyph info and then the
+// compressed image data at the end.
+// The font file format is designed to allow both dynamic loading of font data from
+// external memory/disk or compiling the data as const into a progarm.
+//
+// Example usage:
+// ./fontconvert <regular.ttf> [-b <bold.ttf>] [-i <italic.ttf>] [-bi <bold-italic.ttf>] -p <pt size> -o <out.cpf>
+// ./fontconvert <regular.ttf> [-b <bold.ttf>] [-i <italic.ttf>] [-bi <bold-italic.ttf>] -p <pt size> -o <out.h>
+//
+// This code requires the freetype library
+// found here: www.freetype.org
+//
+
+#ifndef ARDUINO
+
+#include <ctype.h>
+#include <ft2build.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../CrossPointFontFormat.h"
+
+#include FT_GLYPH_H
+#include FT_MODULE_H
+#include FT_TRUETYPE_DRIVER_H
+#include "../Group5/g5enc.inl"  // Group5 image compression library
+G5ENCIMAGE g5enc;               // Group5 encoder state
+
+#define DPI 150              // Approximate resolution of common displays
+#define OUTBUF_SIZE 1048576  // 1MB
+#define MAX_INTERVALS 65536
+#define FONT_SCALE_FACTOR 2
+// TODO: Re-enable small font
+// Disabled small font generation to get this working, but want to re-enable
+#define SMALL_FONT_ENABLED 0
+
+uint32_t raw_intervals[][2] = {
+    /* Basic Latin */
+    // ASCII letters, digits, punctuation, control characters
+    {0x0000, 0x007F},
+    /* Latin-1 Supplement */
+    // Accented characters for Western European languages
+    {0x0080, 0x00FF},
+    /* Latin Extended-A */
+    // Eastern European and Baltic languages
+    {0x0100, 0x017F},
+    /* General Punctuation (core subset) */
+    // Smart quotes, en dash, em dash, ellipsis, NO-BREAK SPACE
+    {0x2000, 0x206F},
+    /* Basic Symbols From "Latin-1 + Misc" */
+    // dashes, quotes, prime marks
+    {0x2010, 0x203A},
+    // misc punctuation
+    {0x2040, 0x205F},
+    // common currency symbols
+    {0x20A0, 0x20CF},
+    /* Combining Diacritical Marks (minimal subset) */
+    // Needed for proper rendering of many extended Latin languages
+    {0x0300, 0x036F},
+    /* Greek & Coptic */
+    // Used in science, maths, philosophy, some academic texts
+    // {0x0370, 0x03FF},
+    /* Cyrillic */
+    // Russian, Ukrainian, Bulgarian, etc.
+    {0x0400, 0x04FF},
+    /* Math Symbols (common subset) */
+    // Superscripts and Subscripts
+    {0x2070, 0x209F},
+    // General math operators
+    {0x2200, 0x22FF},
+    // Arrows
+    {0x2190, 0x21FF},
+    /* CJK */
+    // Core Unified Ideographs
+    // {0x4E00, 0x9FFF},
+    // Extension A
+    // {0x3400, 0x4DBF},
+    // Extension B
+    // {0x20000, 0x2A6DF},
+    // Extension C–F
+    // {0x2A700, 0x2EBEF},
+    // Extension G
+    // {0x30000, 0x3134F},
+    // Hiragana
+    // {0x3040, 0x309F},
+    // Katakana
+    // {0x30A0, 0x30FF},
+    // Katakana Phonetic Extensions
+    // {0x31F0, 0x31FF},
+    // Halfwidth Katakana
+    // {0xFF60, 0xFF9F},
+    // Hangul Syllables
+    // {0xAC00, 0xD7AF},
+    // Hangul Jamo
+    // {0x1100, 0x11FF},
+    // Hangul Compatibility Jamo
+    // {0x3130, 0x318F},
+    // Hangul Jamo Extended-A
+    // {0xA960, 0xA97F},
+    // Hangul Jamo Extended-B
+    // {0xD7B0, 0xD7FF},
+    // CJK Radicals Supplement
+    // {0x2E80, 0x2EFF},
+    // Kangxi Radicals
+    // {0x2F00, 0x2FDF},
+    // CJK Symbols and Punctuation
+    // {0x3000, 0x303F},
+    // CJK Compatibility Forms
+    // {0xFE30, 0xFE4F},
+    // CJK Compatibility Ideographs
+    // {0xF900, 0xFAFF},
+    /* Specials */
+    // Replacement Character
+    {0xFFFD, 0xFFFD},
+};
+
+//
+// Comparison function for qsort
+//
+int compareIntervals(const void* a, const void* b) {
+  const uint32_t* ia = (uint32_t*)a;
+  const uint32_t* ib = (uint32_t*)b;
+  if (ia[0] < ib[0]) return -1;
+  if (ia[0] > ib[0]) return 1;
+  return 0;
+}
+
+//
+// Sort and merge adjacent intervals
+// Returns the number of intervals after merging
+//
+int sortAndMergeIntervals(uint32_t intervals[][2], const int count) {
+  int merged_count = 0;
+
+  // Sort intervals by start value
+  qsort(intervals, count, sizeof(uint32_t) * 2, compareIntervals);
+
+  // Merge overlapping/adjacent intervals
+  for (int i = 0; i < count; i++) {
+    if (merged_count > 0 && intervals[i][0] <= intervals[merged_count - 1][1] + 1) {
+      // Merge with previous interval
+      if (intervals[i][1] > intervals[merged_count - 1][1]) {
+        intervals[merged_count - 1][1] = intervals[i][1];
+      }
+    } else {
+      // Add as new interval
+      if (merged_count != i) {
+        intervals[merged_count][0] = intervals[i][0];
+        intervals[merged_count][1] = intervals[i][1];
+      }
+      merged_count++;
+    }
+  }
+
+  return merged_count;
+}
+
+//
+// Create the comments and const array boilerplate for the hex data bytes
+//
+void StartHexFile(FILE* f, int iLen, const char* fname, int size) {
+  int i, j;
+  char szTemp[256];
+  fprintf(f, "#pragma once\n\n");
+  fprintf(f, "//\n// Created with fontconvert, written by Larry Bank, updated for CrossPoint by Dave Allie\n");
+  fprintf(f, "// Point size: %d (scaled %dx)\n", size, FONT_SCALE_FACTOR);
+  fprintf(f, "// compressed font data size = %d bytes\n//\n", iLen);
+
+  strcpy(szTemp, fname);
+  i = strlen(szTemp);
+  if (szTemp[i - 2] == '.') szTemp[i - 2] = 0;  // get the leaf name for the data
+  j = i;
+  // go backwards to get rid trim off just the leaf name
+  while (j > 0 && szTemp[j] != '/') {
+    j--;
+  }
+  if (szTemp[j] == '/') j++;
+  fprintf(f, "static const uint8_t %s[] = {\n", &szTemp[j]);
+} /* StartHexFile() */
+
+//
+// Add N bytes of hex data to the output
+// The data will be arranged in rows of 16 bytes each
+//
+void AddHexBytes(FILE* f, void* pData, int iLen, int bLast) {
+  static int iCount = 0;  // number of bytes processed so far
+  int i;
+  uint8_t* s = (uint8_t*)pData;
+  for (i = 0; i < iLen; i++) {  // process the given data
+    fprintf(f, "0x%02x", *s++);
+    iCount++;
+    if (i < iLen - 1 || !bLast) fprintf(f, ",");
+    if ((iCount & 15) == 0) fprintf(f, "\n");  // next row of 16
+  }
+  if (bLast) {
+    fprintf(f, "};\n");
+  }
+} /* AddHexBytes() */
+
+int loadCodePoint(FT_Face face, uint32_t code_point, CrossPointFontGlyph* pGlyphs, uint8_t* pBitmap,
+                  uint32_t* glyph_index, uint32_t* iOffset) {
+  uint8_t* s;
+  int iPitch, err;
+  FT_Glyph glyph;
+
+  // MONO renderer provides clean image with perfect crop
+  // (no wasted pixels) via bitmap struct.
+  if ((err = FT_Load_Char(face, code_point, FT_LOAD_TARGET_MONO))) {
+    printf("Error %d loading char U+%04X\n", err, code_point);
+    (*glyph_index)++;
+    return 0;
+  }
+
+  if ((err = FT_Render_Glyph(face->glyph, FT_RENDER_MODE_MONO))) {
+    printf("Error %d rendering char U+%04X\n", err, code_point);
+    (*glyph_index)++;
+    return 0;
+  }
+
+  if ((err = FT_Get_Glyph(face->glyph, &glyph))) {
+    printf("Error %d getting glyph U+%04X\n", err, code_point);
+    (*glyph_index)++;
+    return 0;
+  }
+
+  FT_Bitmap* bitmap = &face->glyph->bitmap;
+  FT_BitmapGlyphRec* g = (FT_BitmapGlyphRec*)glyph;
+
+  // TODO: Restore small font
+  if (0 /* bSmallFont */) {
+#if SMALL_FONT_ENABLED == 1
+    printf("Stubbed\n");
+    return 1;
+#else
+    printf("Small font has been disabled\n");
+    return 1;
+#endif
+  } else {
+    pGlyphs[*glyph_index].bitmapOffset = *iOffset;
+    pGlyphs[*glyph_index].width = bitmap->width;
+    pGlyphs[*glyph_index].height = bitmap->rows;
+    pGlyphs[*glyph_index].xAdvance = (face->glyph->advance.x >> 6);
+    pGlyphs[*glyph_index].xOffset = g->left;
+    pGlyphs[*glyph_index].yOffset = g->top;
+  }
+  s = bitmap->buffer;
+  iPitch = bitmap->pitch;
+
+  g5_encode_init(&g5enc, bitmap->width, bitmap->rows, &pBitmap[*iOffset], OUTBUF_SIZE - *iOffset);
+  for (int y = 0; y < bitmap->rows; y++) {
+    g5_encode_encodeLine(&g5enc, &s[y * iPitch]);
+  }  // for y
+  int iLen = g5_encode_getOutSize(&g5enc);
+  *iOffset += iLen;
+
+  FT_Done_Glyph(glyph);
+  (*glyph_index)++;
+  return 0;
+}
+
+int main(int argc, char* argv[]) {
+  int i, err, size = 0;
+  uint32_t iLen, iOffset = 0;
+  FILE* fOut;
+  // TrueType library structures
+  FT_Library library;
+  char* regularFaceFile;
+  char* boldFaceFile = NULL;
+  char* italicFaceFile = NULL;
+  char* boldItalicFaceFile = NULL;
+  const char* outputFile = NULL;
+  FT_Face faceRegular;
+  FT_Face faceBold;
+  FT_Face faceItalic;
+  FT_Face faceBoldItalic;
+
+  int bSmallFont = 0;  // indicates if we're creating a normal or small font file
+  CrossPointFontUnicodeInterval* pIntervals;
+  CrossPointFontGlyph* pGlyphs;
+#if SMALL_FONT_ENABLED == 1
+  CrossPointFontSmallGlyph* pSmallGlyphs;
+#endif
+  uint8_t* pBitmap;
+  CrossPointFontHeader epdFontHeader;
+
+  int bHFile;  // flag indicating if the output will be a .H file of hex data
+
+  // Process intervals
+  uint32_t intervals[MAX_INTERVALS][2];
+  int intervalCount = sizeof(raw_intervals) / sizeof(raw_intervals[0]);
+  uint32_t totalGlyphs = 0;
+
+  if (argc < 6 || argc % 2 == 1) {
+    printf(
+        "Usage: %s <regular.ttf> [-b <bold.ttf>] [-i <italic.ttf>] [-bi <bold-italic.ttf>] -p point_size -o <out.cpf "
+        "or out.h>\n",
+        argv[0]);
+    return 1;
+  }
+
+  regularFaceFile = argv[1];
+  for (int i = 2; i < argc; i += 2) {
+    if (strcmp(argv[i], "-b") == 0) {
+      // Bold font
+      boldFaceFile = argv[i + 1];
+    } else if (strcmp(argv[i], "-i") == 0) {
+      // Italic font
+      italicFaceFile = argv[i + 1];
+    } else if (strcmp(argv[i], "-bi") == 0) {
+      // Bold-Italic font
+      boldItalicFaceFile = argv[i + 1];
+    } else if (strcmp(argv[i], "-p") == 0) {
+      // Point size
+      size = atoi(argv[i + 1]);
+    } else if (strcmp(argv[i], "-o") == 0) {
+      // Output file
+      outputFile = argv[i + 1];
+      // output an H file?
+      bHFile = outputFile[strlen(outputFile) - 1] == 'H' || outputFile[strlen(outputFile) - 1] == 'h';
+    } else {
+      printf("Unknown argument: %s\n", argv[i]);
+      return 1;
+    }
+  }
+
+  if (!outputFile) {
+    printf("No output file specified\n");
+    return 1;
+  }
+
+  if (size <= 0) {
+    printf("Invalid point size: %d\n", size);
+    return 1;
+  }
+
+  size = size * FONT_SCALE_FACTOR;
+  bSmallFont = (size < 60) && SMALL_FONT_ENABLED == 1;  // Glyph info can fit in signed 8-bit values
+  int fontVariants = 1;                                 // Always at least one variant we treat as regular
+  if (boldFaceFile) fontVariants += 1;
+  if (italicFaceFile) fontVariants += 1;
+  if (boldItalicFaceFile) fontVariants += 1;
+
+  // Copy and sort/merge intervals
+  if (intervalCount > MAX_INTERVALS) {
+    printf("Error: too many intervals (max %d)\n", MAX_INTERVALS);
+    return 1;
+  }
+  for (i = 0; i < intervalCount; i++) {
+    intervals[i][0] = raw_intervals[i][0];
+    intervals[i][1] = raw_intervals[i][1];
+  }
+  intervalCount = sortAndMergeIntervals(intervals, intervalCount);
+
+  // Calculate total number of glyphs
+  for (i = 0; i < intervalCount; i++) {
+    totalGlyphs += intervals[i][1] - intervals[i][0] + 1;
+  }
+  totalGlyphs *= fontVariants;
+
+  printf("Processed intervals: %d, total glyphs: %u\n", intervalCount, totalGlyphs);
+
+  // Allocate memory for intervals
+  pIntervals = (CrossPointFontUnicodeInterval*)malloc(intervalCount * sizeof(CrossPointFontUnicodeInterval));
+  if (!pIntervals) {
+    printf("Error allocating memory for interval data\n");
+    return 1;
+  }
+
+  // Allocate memory for glyphs
+  if (bSmallFont) {
+#if SMALL_FONT_ENABLED == 1
+    pSmallGlyphs = (CrossPointFontSmallGlyph*)malloc(totalGlyphs * sizeof(CrossPointFontSmallGlyph));
+    if (!pSmallGlyphs) {
+      printf("Error allocating memory for glyph data\n");
+      return 1;
+    }
+#else
+    printf("Small font has been disabled\n");
+    return 1;
+#endif
+  } else {
+    pGlyphs = (CrossPointFontGlyph*)malloc(totalGlyphs * sizeof(CrossPointFontGlyph));
+    if (!pGlyphs) {
+      printf("Error allocating memory for glyph data\n");
+      return 1;
+    }
+  }
+  pBitmap = (uint8_t*)malloc(OUTBUF_SIZE);  // Enough to hold the output
+  if (!pBitmap) {
+    printf("Error allocating memory for bitmap data\n");
+    return 1;
+  }
+
+  // Init FreeType lib, load font
+  if ((err = FT_Init_FreeType(&library))) {
+    printf("FreeType init error: %d", err);
+    return err;
+  }
+
+  // Use TrueType engine version 35, without subpixel rendering.
+  // This improves clarity of fonts since this library does not
+  // support rendering multiple levels of gray in a glyph.
+  // See https://github.com/adafruit/Adafruit-GFX-Library/issues/103
+  FT_UInt interpreter_version = TT_INTERPRETER_VERSION_35;
+  FT_Property_Set(library, "truetype", "interpreter-version", &interpreter_version);
+
+  if ((err = FT_New_Face(library, regularFaceFile, 0, &faceRegular))) {
+    printf("Font load error: %d\n", err);
+    FT_Done_FreeType(library);
+    return err;
+  }
+
+  if (italicFaceFile && (err = FT_New_Face(library, italicFaceFile, 0, &faceItalic))) {
+    printf("Font load error: %d\n", err);
+    FT_Done_FreeType(library);
+    return err;
+  }
+
+  if (boldFaceFile && (err = FT_New_Face(library, boldFaceFile, 0, &faceBold))) {
+    printf("Font load error: %d\n", err);
+    FT_Done_FreeType(library);
+    return err;
+  }
+
+  if (boldItalicFaceFile && (err = FT_New_Face(library, boldItalicFaceFile, 0, &faceBoldItalic))) {
+    printf("Font load error: %d\n", err);
+    FT_Done_FreeType(library);
+    return err;
+  }
+
+  // Shift the size left by 6 because the library uses '26dot6' fixed-point format
+  FT_Set_Char_Size(faceRegular, size << 6, 0, DPI, 0);
+  if (boldFaceFile) FT_Set_Char_Size(faceBold, size << 6, 0, DPI, 0);
+  if (italicFaceFile) FT_Set_Char_Size(faceItalic, size << 6, 0, DPI, 0);
+  if (boldItalicFaceFile) FT_Set_Char_Size(faceBoldItalic, size << 6, 0, DPI, 0);
+
+  // Build intervals with offsets and process glyphs
+  uint32_t glyph_index = 0;
+  for (int iInterval = 0; iInterval < intervalCount; iInterval++) {
+    const uint32_t intervalStart = intervals[iInterval][0];
+    const uint32_t intervalEnd = intervals[iInterval][1];
+
+    // Store interval with offset
+    pIntervals[iInterval].first = intervalStart;
+    pIntervals[iInterval].last = intervalEnd;
+    pIntervals[iInterval].offset = glyph_index;
+
+    // Process each glyph in this interval
+    // Load the codepoint for each style variant
+    for (uint32_t codePoint = intervalStart; codePoint <= intervalEnd; codePoint++) {
+      loadCodePoint(faceRegular, codePoint, pGlyphs, pBitmap, &glyph_index, &iOffset);
+      if (boldFaceFile) loadCodePoint(faceBold, codePoint, pGlyphs, pBitmap, &glyph_index, &iOffset);
+      if (italicFaceFile) loadCodePoint(faceItalic, codePoint, pGlyphs, pBitmap, &glyph_index, &iOffset);
+      if (boldItalicFaceFile) loadCodePoint(faceBoldItalic, codePoint, pGlyphs, pBitmap, &glyph_index, &iOffset);
+    }  // for each code point in interval
+  }  // for each interval
+
+  // Try to create the output file
+  fOut = fopen(outputFile, "w+b");
+  if (!fOut) {
+    printf("Error creating output file: %s\n", outputFile);
+    return 1;
+  }
+
+  epdFontHeader.height = faceRegular->size->metrics.height >> 6;
+  epdFontHeader.ascender = faceRegular->size->metrics.ascender >> 6;
+  epdFontHeader.styles = 0b0001;
+  if (boldFaceFile) epdFontHeader.styles |= 0b0010;
+  if (italicFaceFile) epdFontHeader.styles |= 0b0100;
+  if (boldItalicFaceFile) epdFontHeader.styles |= 0b1000;
+  epdFontHeader.intervalCount = intervalCount;
+  epdFontHeader.glyphCount = totalGlyphs;
+
+  // Write the file header
+  if (bSmallFont) {
+#if SMALL_FONT_ENABLED == 1
+    epdFontHeader.u16Marker = CPF_FONT_MARKER_SMALL;
+    if (faceRegular->size->metrics.height == 0) {
+      // No face height info, assume fixed width and get from a glyph.
+      epdFontHeader.height = pSmallGlyphs[0].height;
+    }
+
+    iLen = sizeof(CrossPointFontHeader) + intervalCount * sizeof(CrossPointFontUnicodeInterval) +
+           totalGlyphs * sizeof(CrossPointFontSmallGlyph) + iOffset;
+    if (bHFile) {  // create an H file of hex values
+      StartHexFile(fOut, iLen, outputFile, size);
+      AddHexBytes(fOut, &epdFontHeader, sizeof(CrossPointFontHeader), 0);
+      // Write the intervals
+      AddHexBytes(fOut, pIntervals, sizeof(CrossPointFontUnicodeInterval) * intervalCount, 0);
+      // Write the glyph table
+      AddHexBytes(fOut, pSmallGlyphs, sizeof(CrossPointFontSmallGlyph) * totalGlyphs, 0);
+      // Write the compressed bitmap data
+      AddHexBytes(fOut, pBitmap, iOffset, 1);
+    } else {
+      fwrite(&epdFontHeader, 1, sizeof(CrossPointFontHeader), fOut);
+      // Write the intervals
+      fwrite(pIntervals, 1, intervalCount * sizeof(CrossPointFontUnicodeInterval), fOut);
+      // Write the glyph table
+      fwrite(pSmallGlyphs, 1, totalGlyphs * sizeof(CrossPointFontSmallGlyph), fOut);
+      // Write the compressed bitmap data
+      fwrite(pBitmap, 1, iOffset, fOut);
+    }
+#else
+    printf("Small font has been disabled\n");
+    return 1;
+#endif
+  } else {
+    epdFontHeader.u16Marker = CPF_FONT_MARKER;
+    if (faceRegular->size->metrics.height == 0) {
+      // No face height info, assume fixed width and get from a glyph.
+      epdFontHeader.height = pGlyphs[0].height;
+    }
+
+    iLen = sizeof(CrossPointFontHeader) + intervalCount * sizeof(CrossPointFontUnicodeInterval) +
+           totalGlyphs * sizeof(CrossPointFontGlyph) + iOffset;
+    if (bHFile) {  // create an H file of hex values
+      StartHexFile(fOut, iLen, outputFile, size);
+      AddHexBytes(fOut, &epdFontHeader, sizeof(CrossPointFontHeader), 0);
+      // Write the intervals
+      AddHexBytes(fOut, pIntervals, sizeof(CrossPointFontUnicodeInterval) * intervalCount, 0);
+      // Write the glyph table
+      AddHexBytes(fOut, pGlyphs, sizeof(CrossPointFontGlyph) * totalGlyphs, 0);
+      // Write the compressed bitmap data
+      AddHexBytes(fOut, pBitmap, iOffset, 1);
+    } else {
+      fwrite(&epdFontHeader, 1, sizeof(CrossPointFontHeader), fOut);
+      // Write the intervals
+      fwrite(pIntervals, 1, intervalCount * sizeof(CrossPointFontUnicodeInterval), fOut);
+      // Write the glyph table
+      fwrite(pGlyphs, 1, totalGlyphs * sizeof(CrossPointFontGlyph), fOut);
+      // Write the compressed bitmap data
+      fwrite(pBitmap, 1, iOffset, fOut);
+    }
+  }  // large fonts
+  fflush(fOut);
+  fclose(fOut);  // done!
+  FT_Done_FreeType(library);
+  printf("Success!\nFont file size: %d bytes (%d glyphs)\n", iLen, totalGlyphs);
+
+  return 0;
+} /* main() */
+
+#endif

lib/EpdFont/EpdFont.cpp

@@ -1,72 +0,0 @@
-#include "EpdFont.h"
-
-#include <Utf8.h>
-
-inline int min(const int a, const int b) { return a < b ? a : b; }
-inline int max(const int a, const int b) { return a < b ? b : a; }
-
-void EpdFont::getTextBounds(const char* string, const int startX, const int startY, int* minX, int* minY, int* maxX,
-                            int* maxY) const {
-  *minX = startX;
-  *minY = startY;
-  *maxX = startX;
-  *maxY = startY;
-
-  if (*string == '\0') {
-    return;
-  }
-
-  int cursorX = startX;
-  const int cursorY = startY;
-  uint32_t cp;
-  while ((cp = utf8NextCodepoint(reinterpret_cast<const uint8_t**>(&string)))) {
-    const EpdGlyph* glyph = getGlyph(cp);
-
-    if (!glyph) {
-      // TODO: Replace with fallback glyph property?
-      glyph = getGlyph('?');
-    }
-
-    if (!glyph) {
-      // TODO: Better handle this?
-      continue;
-    }
-
-    *minX = min(*minX, cursorX + glyph->left);
-    *maxX = max(*maxX, cursorX + glyph->left + glyph->width);
-    *minY = min(*minY, cursorY + glyph->top - glyph->height);
-    *maxY = max(*maxY, cursorY + glyph->top);
-    cursorX += glyph->advanceX;
-  }
-}
-
-void EpdFont::getTextDimensions(const char* string, int* w, int* h) const {
-  int minX = 0, minY = 0, maxX = 0, maxY = 0;
-
-  getTextBounds(string, 0, 0, &minX, &minY, &maxX, &maxY);
-
-  *w = maxX - minX;
-  *h = maxY - minY;
-}
-
-bool EpdFont::hasPrintableChars(const char* string) const {
-  int w = 0, h = 0;
-
-  getTextDimensions(string, &w, &h);
-
-  return w > 0 || h > 0;
-}
-
-const EpdGlyph* EpdFont::getGlyph(const uint32_t cp) const {
-  const EpdUnicodeInterval* intervals = data->intervals;
-  for (int i = 0; i < data->intervalCount; i++) {
-    const EpdUnicodeInterval* interval = &intervals[i];
-    if (cp >= interval->first && cp <= interval->last) {
-      return &data->glyph[interval->offset + (cp - interval->first)];
-    }
-    if (cp < interval->first) {
-      return nullptr;
-    }
-  }
-  return nullptr;
-}

lib/EpdFont/EpdFont.h

@@ -1,15 +0,0 @@
-#pragma once
-#include "EpdFontData.h"
-
-class EpdFont {
-  void getTextBounds(const char* string, int startX, int startY, int* minX, int* minY, int* maxX, int* maxY) const;
-
- public:
-  const EpdFontData* data;
-  explicit EpdFont(const EpdFontData* data) : data(data) {}
-  ~EpdFont() = default;
-  void getTextDimensions(const char* string, int* w, int* h) const;
-  bool hasPrintableChars(const char* string) const;
-
-  const EpdGlyph* getGlyph(uint32_t cp) const;
-};

lib/EpdFont/EpdFontData.h

@@ -1,34 +0,0 @@
-// From
-// https://github.com/vroland/epdiy/blob/c61e9e923ce2418150d54f88cea5d196cdc40c54/src/epd_internals.h
-
-#pragma once
-#include <cstdint>
-
-/// Font data stored PER GLYPH
-typedef struct {
-  uint8_t width;        ///< Bitmap dimensions in pixels
-  uint8_t height;       ///< Bitmap dimensions in pixels
-  uint8_t advanceX;     ///< Distance to advance cursor (x axis)
-  int16_t left;         ///< X dist from cursor pos to UL corner
-  int16_t top;          ///< Y dist from cursor pos to UL corner
-  uint16_t dataLength;  ///< Size of the font data.
-  uint32_t dataOffset;  ///< Pointer into EpdFont->bitmap
-} EpdGlyph;
-
-/// Glyph interval structure
-typedef struct {
-  uint32_t first;   ///< The first unicode code point of the interval
-  uint32_t last;    ///< The last unicode code point of the interval
-  uint32_t offset;  ///< Index of the first code point into the glyph array
-} EpdUnicodeInterval;
-
-/// Data stored for FONT AS A WHOLE
-typedef struct {
-  const uint8_t* bitmap;                ///< Glyph bitmaps, concatenated
-  const EpdGlyph* glyph;                ///< Glyph array
-  const EpdUnicodeInterval* intervals;  ///< Valid unicode intervals for this font
-  uint32_t intervalCount;               ///< Number of unicode intervals.
-  uint8_t advanceY;                     ///< Newline distance (y axis)
-  int ascender;                         ///< Maximal height of a glyph above the base line
-  int descender;                        ///< Maximal height of a glyph below the base line
-} EpdFontData;

lib/EpdFont/EpdFontFamily.cpp

@@ -1,37 +0,0 @@
-#include "EpdFontFamily.h"
-
-const EpdFont* EpdFontFamily::getFont(const EpdFontStyle style) const {
-  if (style == BOLD && bold) {
-    return bold;
-  }
-  if (style == ITALIC && italic) {
-    return italic;
-  }
-  if (style == BOLD_ITALIC) {
-    if (boldItalic) {
-      return boldItalic;
-    }
-    if (bold) {
-      return bold;
-    }
-    if (italic) {
-      return italic;
-    }
-  }
-
-  return regular;
-}
-
-void EpdFontFamily::getTextDimensions(const char* string, int* w, int* h, const EpdFontStyle style) const {
-  getFont(style)->getTextDimensions(string, w, h);
-}
-
-bool EpdFontFamily::hasPrintableChars(const char* string, const EpdFontStyle style) const {
-  return getFont(style)->hasPrintableChars(string);
-}
-
-const EpdFontData* EpdFontFamily::getData(const EpdFontStyle style) const { return getFont(style)->data; }
-
-const EpdGlyph* EpdFontFamily::getGlyph(const uint32_t cp, const EpdFontStyle style) const {
-  return getFont(style)->getGlyph(cp);
-};

lib/EpdFont/EpdFontFamily.h

@@ -1,24 +0,0 @@
-#pragma once
-#include "EpdFont.h"
-
-enum EpdFontStyle { REGULAR, BOLD, ITALIC, BOLD_ITALIC };
-
-class EpdFontFamily {
-  const EpdFont* regular;
-  const EpdFont* bold;
-  const EpdFont* italic;
-  const EpdFont* boldItalic;
-
-  const EpdFont* getFont(EpdFontStyle style) const;
-
- public:
-  explicit EpdFontFamily(const EpdFont* regular, const EpdFont* bold = nullptr, const EpdFont* italic = nullptr,
-                         const EpdFont* boldItalic = nullptr)
-      : regular(regular), bold(bold), italic(italic), boldItalic(boldItalic) {}
-  ~EpdFontFamily() = default;
-  void getTextDimensions(const char* string, int* w, int* h, EpdFontStyle style = REGULAR) const;
-  bool hasPrintableChars(const char* string, EpdFontStyle style = REGULAR) const;
-
-  const EpdFontData* getData(EpdFontStyle style = REGULAR) const;
-  const EpdGlyph* getGlyph(uint32_t cp, EpdFontStyle style = REGULAR) const;
-};

lib/EpdFont/builtinFonts/babyblue.h

@@ -1,504 +0,0 @@
-/**
- * generated by fontconvert.py
- * name: babyblue
- * size: 8
- */
-#pragma once
-#include "EpdFontData.h"
-
-static const uint8_t babyblueBitmaps[3140] = {
-    0xFF, 0xFF, 0x30, 0xFF, 0xFF, 0xF0, 0x36, 0x1B, 0x0D, 0x9F, 0xFF, 0xF9, 0xB3, 0xFF, 0xFF, 0x36, 0x1B, 0x0D, 0x80,
-    0x18, 0x18, 0x7E, 0xFF, 0xDB, 0xD8, 0xFE, 0x7F, 0x9B, 0xDB, 0xFF, 0x7E, 0x18, 0x00, 0x71, 0x9F, 0x73, 0x6C, 0x6F,
-    0x8F, 0xE0, 0xFF, 0x83, 0xF8, 0xFB, 0x1B, 0x63, 0x7C, 0xC7, 0x00, 0x38, 0x3E, 0x1B, 0x0D, 0x87, 0xC3, 0xEF, 0xBF,
-    0x8E, 0xCF, 0x7F, 0x1E, 0xC0, 0xFF, 0x37, 0xEC, 0xCC, 0xCC, 0xCC, 0xCC, 0x67, 0x20, 0xCE, 0x73, 0x33, 0x33, 0x33,
-    0x33, 0x6C, 0x80, 0x32, 0xFF, 0xDE, 0xFE, 0x30, 0x18, 0x18, 0x18, 0xFF, 0xFF, 0x18, 0x18, 0x18, 0xBF, 0x00, 0xFF,
-    0xC0, 0x30, 0x0C, 0x31, 0xC6, 0x18, 0xE3, 0x1C, 0x63, 0x8C, 0x00, 0x3C, 0x7E, 0xE7, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3,
-    0xC7, 0x7E, 0x3C, 0x19, 0xDF, 0xFD, 0x8C, 0x63, 0x18, 0xC6, 0x3C, 0x7E, 0xE7, 0x83, 0x07, 0x0E, 0x1C, 0x38, 0x70,
-    0xFE, 0xFF, 0x7E, 0xFF, 0xC3, 0x07, 0x3E, 0x3E, 0x07, 0x03, 0x83, 0xFF, 0x7E, 0x0E, 0x1E, 0x3E, 0x76, 0xE6, 0xFF,
-    0xFF, 0x06, 0x06, 0x06, 0x06, 0x7F, 0xFF, 0x06, 0x0F, 0xDF, 0xC1, 0x83, 0x87, 0xFD, 0xF0, 0x3E, 0x7F, 0xE3, 0xC0,
-    0xFC, 0xFE, 0xE7, 0xC3, 0xC7, 0x7E, 0x3C, 0xFF, 0xFF, 0xC0, 0xE0, 0xE0, 0x60, 0x70, 0x30, 0x18, 0x1C, 0x0C, 0x06,
-    0x00, 0x3C, 0x7E, 0x66, 0x66, 0x7E, 0x7E, 0xE7, 0xC3, 0xC7, 0x7E, 0x3C, 0x3C, 0x7E, 0xE7, 0xC3, 0xC3, 0xC7, 0x7F,
-    0x3F, 0x07, 0x3E, 0x7C, 0xB0, 0x03, 0xB0, 0x03, 0xF8, 0x06, 0x3D, 0xF7, 0x8F, 0x0F, 0x87, 0x03, 0xFF, 0xFF, 0x00,
-    0xFF, 0xFF, 0x81, 0xE1, 0xF0, 0xF1, 0xEF, 0xBC, 0x40, 0x38, 0xFB, 0xBE, 0x30, 0xE3, 0x8E, 0x18, 0x30, 0x00, 0xC0,
-    0x0F, 0xE0, 0x7F, 0xC3, 0x83, 0x9D, 0xE7, 0xEF, 0xCF, 0x73, 0x3D, 0x8C, 0xF6, 0x33, 0xD8, 0xDB, 0x3F, 0xC6, 0x7E,
-    0x0C, 0x03, 0x18, 0x18, 0x7F, 0xE0, 0xFF, 0x00, 0x38, 0xFB, 0xBE, 0x3C, 0x7F, 0xFF, 0xE3, 0xC7, 0x8C, 0xFC, 0xFE,
-    0xC7, 0xC7, 0xFE, 0xFE, 0xC7, 0xC7, 0xFE, 0xFC, 0x3F, 0x3F, 0xF8, 0x78, 0x0C, 0x06, 0x03, 0x01, 0x83, 0x7F, 0x9F,
-    0x80, 0xFC, 0xFE, 0xC7, 0xC3, 0xC3, 0xC3, 0xC3, 0xC7, 0xFE, 0xFC, 0xFF, 0xFF, 0x06, 0x0F, 0xDF, 0xB0, 0x60, 0xFD,
-    0xFC, 0xFF, 0xFF, 0x06, 0x0F, 0xDF, 0xB0, 0x60, 0xC1, 0x80, 0x3F, 0x3F, 0xF8, 0x78, 0x0C, 0x7E, 0x3F, 0x07, 0x83,
-    0x7F, 0x9F, 0x80, 0xC3, 0xC3, 0xC3, 0xC3, 0xFF, 0xFF, 0xC3, 0xC3, 0xC3, 0xC3, 0xFF, 0xFF, 0xF0, 0x0C, 0x30, 0xC3,
-    0x0C, 0x38, 0xF3, 0xFD, 0xE0, 0xC3, 0xC7, 0xCE, 0xDC, 0xF8, 0xF8, 0xDC, 0xCC, 0xC6, 0xC3, 0xC1, 0x83, 0x06, 0x0C,
-    0x18, 0x30, 0x60, 0xFD, 0xFC, 0xE1, 0xF8, 0x7F, 0x3F, 0xCF, 0xFF, 0xF7, 0xBD, 0xEF, 0x7B, 0xCC, 0xF3, 0x30, 0xC3,
-    0xE3, 0xF3, 0xF3, 0xFB, 0xDF, 0xCF, 0xCF, 0xC7, 0xC3, 0x3E, 0x3F, 0xB8, 0xF8, 0x3C, 0x1E, 0x0F, 0x07, 0x87, 0x7F,
-    0x1F, 0x00, 0xFE, 0xFF, 0xC3, 0xC3, 0xFF, 0xFE, 0xC0, 0xC0, 0xC0, 0xC0, 0x3E, 0x3F, 0xB8, 0xF8, 0x3C, 0x1E, 0x0F,
-    0x37, 0x9F, 0x7F, 0x1F, 0xC0, 0xFE, 0xFF, 0xC3, 0xC7, 0xFE, 0xFE, 0xC7, 0xC3, 0xC3, 0xC3, 0x7D, 0xFF, 0x1F, 0x87,
-    0xC3, 0xC1, 0xC3, 0xFE, 0xF8, 0xFF, 0xFF, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xC3, 0xC3, 0xC3, 0xC3,
-    0xC3, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0xC3, 0xC3, 0xC3, 0xE7, 0x66, 0x7E, 0x3C, 0x3C, 0x3C, 0x18, 0x83, 0x0F, 0x0C,
-    0x3C, 0x30, 0xF1, 0xE7, 0x67, 0x99, 0xBF, 0xE3, 0xCF, 0x0F, 0x3C, 0x3C, 0xF0, 0x61, 0x80, 0x80, 0xF8, 0x77, 0x38,
-    0xFC, 0x1E, 0x07, 0x83, 0xF1, 0xCE, 0xE1, 0xB0, 0x30, 0xC3, 0xC3, 0xE7, 0x7E, 0x3C, 0x18, 0x18, 0x18, 0x18, 0x18,
-    0xFF, 0xFF, 0x07, 0x0E, 0x1C, 0x38, 0x70, 0xE0, 0xFE, 0xFF, 0xFF, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xFE, 0x81, 0xC1,
-    0x83, 0x83, 0x83, 0x06, 0x06, 0x0C, 0x0C, 0xFF, 0x33, 0x33, 0x33, 0x33, 0x33, 0xFE, 0x18, 0x3C, 0x7E, 0x66, 0xE7,
-    0xC3, 0x83, 0xFF, 0xFF, 0x9D, 0x80, 0x7D, 0xFE, 0x1B, 0xFF, 0xF8, 0xFF, 0xBF, 0xC1, 0x83, 0xE7, 0xEC, 0xF8, 0xF1,
-    0xE7, 0xFD, 0xF0, 0x3C, 0xFF, 0x9E, 0x0C, 0x18, 0x9F, 0x9E, 0x06, 0x0C, 0xFB, 0xFE, 0x78, 0xF1, 0xE3, 0x7E, 0x7C,
-    0x3C, 0x7E, 0xE7, 0xFF, 0xFF, 0xC0, 0x7E, 0x3F, 0x3B, 0xD9, 0xFF, 0xB1, 0x8C, 0x63, 0x18, 0x3E, 0xFF, 0x9E, 0x3C,
-    0x78, 0xDF, 0x9F, 0x06, 0x0D, 0xF3, 0xC0, 0xC3, 0x0F, 0xBF, 0xEF, 0x3C, 0xF3, 0xCF, 0x30, 0xFB, 0xFF, 0xF0, 0x6D,
-    0x36, 0xDB, 0x6D, 0xBD, 0x00, 0xC3, 0x0C, 0xF7, 0xFB, 0xCE, 0x3C, 0xDB, 0x30, 0xFF, 0xFF, 0xF0, 0x7F, 0xBF, 0xFC,
-    0xCF, 0x33, 0xCC, 0xF3, 0x3C, 0xCF, 0x33, 0x7B, 0xFC, 0xF3, 0xCF, 0x3C, 0xF3, 0x3C, 0x7E, 0xE7, 0xC3, 0xC3, 0xC7,
-    0x7E, 0x3C, 0x79, 0xFB, 0x3E, 0x3C, 0x79, 0xFF, 0x7C, 0xC1, 0x82, 0x00, 0x3C, 0xFF, 0x9E, 0x3C, 0x78, 0xDF, 0x9F,
-    0x06, 0x0C, 0x10, 0x77, 0xF7, 0x8C, 0x63, 0x18, 0x7D, 0xFF, 0x1F, 0xE7, 0xF0, 0xFF, 0xBE, 0x63, 0x3D, 0xE6, 0x31,
-    0x8C, 0x71, 0xC0, 0x8F, 0x3C, 0xF3, 0xCF, 0x3F, 0xDE, 0x83, 0xC3, 0xC7, 0x66, 0x66, 0x6E, 0x3C, 0x18, 0x80, 0xF3,
-    0x3D, 0xFD, 0xFE, 0x7F, 0x9F, 0xE3, 0x30, 0xCC, 0x83, 0xC7, 0x6E, 0x3C, 0x38, 0x7C, 0xE6, 0xC3, 0x83, 0xC7, 0x66,
-    0x6E, 0x3C, 0x3C, 0x18, 0x18, 0x18, 0x70, 0x60, 0xFF, 0xFC, 0x71, 0xC7, 0x1C, 0x3F, 0x7F, 0x19, 0xCC, 0x63, 0x3B,
-    0x98, 0x61, 0x8C, 0x63, 0x1C, 0x40, 0xFF, 0xFF, 0xFF, 0xF8, 0x83, 0x87, 0x0C, 0x30, 0xE1, 0xC7, 0x38, 0xC3, 0x0C,
-    0x63, 0x08, 0x00, 0x79, 0xFF, 0xE3, 0xC0, 0xF2, 0xFF, 0xFE, 0x18, 0x30, 0xF3, 0xFF, 0xFB, 0x36, 0x6E, 0x7E, 0x78,
-    0x60, 0xC1, 0x00, 0x3C, 0x7E, 0x66, 0x60, 0xFC, 0xFC, 0x30, 0x72, 0xFF, 0xFE, 0x83, 0xFF, 0x7E, 0x66, 0x66, 0x7E,
-    0xFE, 0x83, 0x83, 0xE7, 0x7E, 0x3C, 0xFF, 0xFF, 0xFF, 0xFF, 0x18, 0x18, 0xFF, 0xFC, 0xBF, 0xF8, 0x3C, 0x7E, 0x66,
-    0x7E, 0x7C, 0xEE, 0xC7, 0xC3, 0x77, 0x3E, 0x0C, 0x66, 0x66, 0x7C, 0x38, 0x9E, 0xE6, 0x3F, 0x1F, 0xEF, 0xFF, 0xFF,
-    0xF3, 0xFC, 0x3F, 0x3F, 0xFF, 0xDF, 0xDF, 0xE3, 0xF0, 0x77, 0xFF, 0xFF, 0xBC, 0x36, 0xFF, 0xF6, 0xCD, 0xCD, 0x8D,
-    0x80, 0xFF, 0xFF, 0x03, 0x03, 0x03, 0x3F, 0x1F, 0xEF, 0xFF, 0xFB, 0xF6, 0xFF, 0xBF, 0xEF, 0xDB, 0xF7, 0xDF, 0xE3,
-    0xF0, 0xFF, 0xFF, 0x6F, 0xFF, 0x60, 0x18, 0x18, 0x18, 0xFF, 0xFF, 0x18, 0x18, 0xFE, 0xFF, 0x77, 0xE6, 0x77, 0x73,
-    0xFF, 0x77, 0xEF, 0x7F, 0xB8, 0x7F, 0x00, 0xCF, 0x3C, 0xF3, 0xCF, 0x3F, 0xFE, 0xC3, 0x0C, 0x20, 0x7F, 0xFF, 0xFE,
-    0xFE, 0xFE, 0x7E, 0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x16, 0xB0, 0x63, 0xEC, 0x37, 0xFB, 0x33, 0x30, 0x7B,
-    0xFC, 0xF3, 0xFD, 0xE0, 0x99, 0xF9, 0xF9, 0xB7, 0xFF, 0xB6, 0x00, 0x30, 0x07, 0x03, 0xF0, 0x7B, 0x0E, 0x31, 0xC3,
-    0x38, 0x37, 0x60, 0xEE, 0x1D, 0xE3, 0xBF, 0x33, 0xF6, 0x06, 0x30, 0x67, 0x0E, 0xF1, 0xCB, 0x38, 0x37, 0x03, 0xEF,
-    0x1D, 0xF3, 0x9F, 0x70, 0xEE, 0x0E, 0xC1, 0xF0, 0x70, 0x6F, 0x8E, 0xB9, 0xCB, 0xB8, 0xFF, 0x07, 0xE6, 0x1C, 0xE3,
-    0x9E, 0x73, 0xFE, 0x3F, 0xC0, 0x60, 0x30, 0x60, 0xC1, 0x87, 0x1C, 0x30, 0x60, 0xC6, 0xD9, 0xE1, 0x80, 0x30, 0x70,
-    0x61, 0xC7, 0xDD, 0xF1, 0xE3, 0xFF, 0xFF, 0x1E, 0x3C, 0x60, 0x18, 0x70, 0xC1, 0xC7, 0xDD, 0xF1, 0xE3, 0xFF, 0xFF,
-    0x1E, 0x3C, 0x60, 0x38, 0xF9, 0xB1, 0xC7, 0xDD, 0xF1, 0xE3, 0xFF, 0xFF, 0x1E, 0x3C, 0x60, 0x3C, 0xF9, 0xE1, 0xC7,
-    0xDD, 0xF1, 0xE3, 0xFF, 0xFF, 0x1E, 0x3C, 0x60, 0x6C, 0xD8, 0xE3, 0xEE, 0xF8, 0xF1, 0xFF, 0xFF, 0x8F, 0x1E, 0x30,
-    0x38, 0xF9, 0xF1, 0xC7, 0xDD, 0xF1, 0xE3, 0xFF, 0xFF, 0x1E, 0x3C, 0x60, 0x0F, 0xF8, 0x7F, 0xC7, 0xC0, 0x36, 0x03,
-    0xB0, 0x19, 0xF9, 0xFF, 0xCF, 0xE0, 0xE3, 0x06, 0x1F, 0xB0, 0xFE, 0x3F, 0x3F, 0xF8, 0x78, 0x0C, 0x06, 0x03, 0x01,
-    0x83, 0x7F, 0x9F, 0x86, 0x01, 0x83, 0x81, 0x80, 0x30, 0x70, 0x67, 0xFF, 0xF8, 0x30, 0x7E, 0xFD, 0x83, 0x07, 0xEF,
-    0xE0, 0x0C, 0x38, 0x67, 0xFF, 0xF8, 0x30, 0x7E, 0xFD, 0x83, 0x07, 0xEF, 0xE0, 0x18, 0x78, 0xF7, 0xFF, 0xF8, 0x30,
-    0x7E, 0xFD, 0x83, 0x07, 0xEF, 0xE0, 0x3C, 0x7B, 0xFF, 0xFC, 0x18, 0x3F, 0x7E, 0xC1, 0x83, 0xF7, 0xF0, 0x9D, 0x36,
-    0xDB, 0x6D, 0xB6, 0x7A, 0x6D, 0xB6, 0xDB, 0x6C, 0x6F, 0xB6, 0x66, 0x66, 0x66, 0x66, 0x60, 0xBB, 0x66, 0x66, 0x66,
-    0x66, 0x66, 0x7E, 0x3F, 0x98, 0xEC, 0x3F, 0xDF, 0xED, 0x86, 0xC7, 0x7F, 0x3F, 0x00, 0x1E, 0x3E, 0x3C, 0xC3, 0xE3,
-    0xF3, 0xF3, 0xFB, 0xDF, 0xCF, 0xCF, 0xC7, 0xC3, 0x18, 0x0E, 0x03, 0x07, 0xC7, 0xF7, 0x1F, 0x07, 0x83, 0xC1, 0xE0,
-    0xF0, 0xEF, 0xE3, 0xE0, 0x0C, 0x0E, 0x06, 0x07, 0xC7, 0xF7, 0x1F, 0x07, 0x83, 0xC1, 0xE0, 0xF0, 0xEF, 0xE3, 0xE0,
-    0x1C, 0x1F, 0x0D, 0x87, 0xC7, 0xF7, 0x1F, 0x07, 0x83, 0xC1, 0xE0, 0xF0, 0xEF, 0xE3, 0xE0, 0x1E, 0x1F, 0x0F, 0x07,
-    0xC7, 0xF7, 0x1F, 0x07, 0x83, 0xC1, 0xE0, 0xF0, 0xEF, 0xE3, 0xE0, 0x36, 0x1B, 0x0F, 0x8F, 0xEE, 0x3E, 0x0F, 0x07,
-    0x83, 0xC1, 0xE1, 0xDF, 0xC7, 0xC0, 0x8F, 0xF7, 0x9E, 0xFF, 0x30, 0x1F, 0xCF, 0xF7, 0x3D, 0x9F, 0x6E, 0xDF, 0x37,
-    0x8D, 0xC7, 0xFF, 0xB7, 0xC0, 0x30, 0x38, 0x18, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x0C,
-    0x1C, 0x18, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x18, 0x3C, 0x3C, 0xC3, 0xC3, 0xC3, 0xC3,
-    0xC3, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x3C, 0x3C, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x0C,
-    0x1C, 0x18, 0xC3, 0xC3, 0xE7, 0x7E, 0x3C, 0x18, 0x18, 0x18, 0x18, 0x18, 0xC0, 0xFC, 0xFE, 0xC7, 0xC3, 0xC7, 0xFE,
-    0xFC, 0xC0, 0xC0, 0x38, 0xFB, 0xB6, 0x6D, 0xDB, 0x37, 0x67, 0xE7, 0xFF, 0x70, 0x30, 0x70, 0x63, 0xEF, 0xF0, 0xDF,
-    0xFF, 0xC7, 0xFD, 0xF8, 0x0C, 0x38, 0x63, 0xEF, 0xF0, 0xDF, 0xFF, 0xC7, 0xFD, 0xF8, 0x18, 0x78, 0xF3, 0xEF, 0xF0,
-    0xDF, 0xFF, 0xC7, 0xFD, 0xF8, 0x3C, 0xF9, 0xE3, 0xEF, 0xF0, 0xDF, 0xFF, 0xC7, 0xFD, 0xF8, 0x3C, 0x79, 0xF7, 0xF8,
-    0x6F, 0xFF, 0xE3, 0xFE, 0xFC, 0x18, 0x78, 0xF0, 0xC7, 0xDF, 0xE1, 0xBF, 0xFF, 0x8F, 0xFB, 0xF0, 0x7F, 0xEF, 0xFF,
-    0x86, 0x37, 0xFF, 0xFF, 0xFC, 0x61, 0xFF, 0xF7, 0xFE, 0x3C, 0xFF, 0x9E, 0x0C, 0x18, 0x9F, 0x9E, 0x18, 0x18, 0xE1,
-    0x80, 0x30, 0x38, 0x18, 0x3C, 0x7E, 0xE7, 0xFF, 0xFF, 0xC0, 0x7E, 0x3F, 0x0C, 0x1C, 0x18, 0x3C, 0x7E, 0xE7, 0xFF,
-    0xFF, 0xC0, 0x7E, 0x3F, 0x18, 0x3C, 0x3C, 0x3C, 0x7E, 0xE7, 0xFF, 0xFF, 0xC0, 0x7E, 0x3F, 0x3C, 0x3C, 0x3C, 0x7E,
-    0xE7, 0xFF, 0xFF, 0xC0, 0x7E, 0x3F, 0x9D, 0xA6, 0xDB, 0x6D, 0x80, 0x7F, 0x4D, 0xB6, 0xDB, 0x00, 0x6F, 0xB4, 0x66,
-    0x66, 0x66, 0x60, 0xBB, 0x46, 0x66, 0x66, 0x66, 0x3E, 0x3E, 0x3C, 0x7E, 0xE7, 0xC3, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C,
-    0x3D, 0xF7, 0x9E, 0xFF, 0x3C, 0xF3, 0xCF, 0x3C, 0xC0, 0x30, 0x38, 0x18, 0x3C, 0x7E, 0xE7, 0xC3, 0xC3, 0xC7, 0x7E,
-    0x3C, 0x0C, 0x1C, 0x18, 0x3C, 0x7E, 0xE7, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x18, 0x3C, 0x3C, 0x3C, 0x7E, 0xE7, 0xC3,
-    0xC3, 0xC7, 0x7E, 0x3C, 0x1E, 0x3E, 0x3C, 0x3C, 0x7E, 0xE7, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x3C, 0x3C, 0x3C, 0x7E,
-    0xE7, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x18, 0x18, 0xFF, 0xFF, 0x10, 0x18, 0x3F, 0x7F, 0xEF, 0xDF, 0xFB, 0xF7, 0xFE,
-    0xFC, 0x61, 0xC3, 0x23, 0xCF, 0x3C, 0xF3, 0xCF, 0xF7, 0x80, 0x18, 0xE3, 0x23, 0xCF, 0x3C, 0xF3, 0xCF, 0xF7, 0x80,
-    0x31, 0xE7, 0xA3, 0xCF, 0x3C, 0xF3, 0xCF, 0xF7, 0x80, 0x79, 0xE8, 0xF3, 0xCF, 0x3C, 0xF3, 0xFD, 0xE0, 0x0C, 0x1C,
-    0x18, 0x83, 0xC7, 0x66, 0x6E, 0x3C, 0x3C, 0x18, 0x18, 0x18, 0x70, 0x60, 0xC1, 0x83, 0xE7, 0xEE, 0xF8, 0xF1, 0xE7,
-    0xFD, 0xF3, 0x06, 0x08, 0x00, 0x3C, 0x3C, 0x83, 0xC7, 0x66, 0x6E, 0x3C, 0x3C, 0x18, 0x18, 0x18, 0x70, 0x60, 0x7C,
-    0xF8, 0xE3, 0xEE, 0xF8, 0xF1, 0xFF, 0xFF, 0x8F, 0x1E, 0x30, 0x7C, 0xF9, 0xF7, 0xF8, 0x6F, 0xFF, 0xE3, 0xFE, 0xFC,
-    0x6C, 0xF8, 0xE1, 0xC7, 0xDD, 0xF1, 0xE3, 0xFF, 0xFF, 0x1E, 0x3C, 0x60, 0x6C, 0xF8, 0xE3, 0xEF, 0xF0, 0xDF, 0xFF,
-    0xC7, 0xFD, 0xF8, 0x38, 0x7C, 0xEE, 0xC6, 0xC6, 0xFE, 0xFE, 0xC6, 0xC6, 0xC6, 0x0C, 0x0C, 0x0F, 0x07, 0x7C, 0xFE,
-    0x86, 0x7E, 0xFE, 0xC6, 0xFE, 0x7E, 0x06, 0x0C, 0x0F, 0x0F, 0x0C, 0x0E, 0x06, 0x07, 0xE7, 0xFF, 0x0F, 0x01, 0x80,
-    0xC0, 0x60, 0x30, 0x6F, 0xF3, 0xF0, 0x0C, 0x38, 0x61, 0xE7, 0xFC, 0xF0, 0x60, 0xC4, 0xFC, 0xF0, 0x0C, 0x0F, 0x07,
-    0x87, 0xE7, 0xFF, 0x0F, 0x01, 0x80, 0xC0, 0x60, 0x30, 0x6F, 0xF3, 0xF0, 0x18, 0x78, 0xF1, 0xE7, 0xFC, 0xF0, 0x60,
-    0xC4, 0xFC, 0xF0, 0x0C, 0x06, 0x0F, 0xCF, 0xFE, 0x1E, 0x03, 0x01, 0x80, 0xC0, 0x60, 0xDF, 0xE7, 0xE0, 0x18, 0x30,
-    0xF3, 0xFE, 0x78, 0x30, 0x62, 0x7E, 0x78, 0x1E, 0x0F, 0x03, 0x07, 0xE7, 0xFF, 0x0F, 0x01, 0x80, 0xC0, 0x60, 0x30,
-    0x6F, 0xF3, 0xF0, 0x3C, 0x78, 0x61, 0xE7, 0xFC, 0xF0, 0x60, 0xC4, 0xFC, 0xF0, 0x78, 0x78, 0x30, 0xFC, 0xFE, 0xC7,
-    0xC3, 0xC3, 0xC3, 0xC3, 0xC7, 0xFE, 0xFC, 0x01, 0x83, 0xC1, 0xE7, 0xC7, 0xE7, 0x33, 0x19, 0x8C, 0xC6, 0x3F, 0x0F,
-    0x80, 0x7E, 0x3F, 0x98, 0xEC, 0x3F, 0xDF, 0xED, 0x86, 0xC7, 0x7F, 0x3F, 0x00, 0x06, 0x1F, 0x1F, 0x3E, 0x7E, 0xE6,
-    0xC6, 0xC6, 0xC6, 0x7E, 0x3E, 0x3C, 0x7B, 0xFF, 0xFC, 0x18, 0x3F, 0x7E, 0xC1, 0x83, 0xF7, 0xF0, 0x3C, 0x3C, 0x3C,
-    0x7E, 0xE7, 0xFF, 0xFF, 0xC0, 0x7E, 0x3F, 0x66, 0xFC, 0xF7, 0xFF, 0xF8, 0x30, 0x7E, 0xFD, 0x83, 0x07, 0xEF, 0xE0,
-    0x66, 0x7E, 0x3C, 0x3C, 0x7E, 0xE7, 0xFF, 0xFF, 0xC0, 0x7E, 0x3F, 0x18, 0x33, 0xFF, 0xFC, 0x18, 0x3F, 0x7E, 0xC1,
-    0x83, 0xF7, 0xF0, 0x18, 0x18, 0x3C, 0x7E, 0xE7, 0xFF, 0xFF, 0xC0, 0x7E, 0x3F, 0xFE, 0xFE, 0xC0, 0xC0, 0xFC, 0xFC,
-    0xC0, 0xC0, 0xFC, 0xFE, 0x06, 0x0C, 0x0F, 0x0F, 0x3C, 0x7E, 0xE7, 0xFF, 0xFF, 0xC0, 0x7E, 0x3F, 0x06, 0x0C, 0x0F,
-    0x07, 0x3C, 0x78, 0x67, 0xFF, 0xF8, 0x30, 0x7E, 0xFD, 0x83, 0x07, 0xEF, 0xE0, 0x3C, 0x3C, 0x18, 0x3C, 0x7E, 0xE7,
-    0xFF, 0xFF, 0xC0, 0x7E, 0x3F, 0x0C, 0x0F, 0x07, 0x87, 0xE7, 0xFF, 0x0F, 0x01, 0x8F, 0xC7, 0xE0, 0xF0, 0x6F, 0xF3,
-    0xF0, 0x18, 0x78, 0xF1, 0xF7, 0xFC, 0xF1, 0xE3, 0xC6, 0xFC, 0xF8, 0x30, 0x6F, 0x9E, 0x00, 0x36, 0x1F, 0x07, 0x07,
-    0xE7, 0xFF, 0x0F, 0x01, 0x8F, 0xC7, 0xE0, 0xF0, 0x6F, 0xF3, 0xF0, 0x36, 0x7C, 0x71, 0xF7, 0xFC, 0xF1, 0xE3, 0xC6,
-    0xFC, 0xF8, 0x30, 0x6F, 0x9E, 0x00, 0x0C, 0x06, 0x0F, 0xCF, 0xFE, 0x1E, 0x03, 0x1F, 0x8F, 0xC1, 0xE0, 0xDF, 0xE7,
-    0xE0, 0x18, 0x30, 0xFB, 0xFE, 0x78, 0xF1, 0xE3, 0x7E, 0x7C, 0x18, 0x37, 0xCF, 0x00, 0x3F, 0x3F, 0xF8, 0x78, 0x0C,
-    0x7E, 0x3F, 0x07, 0x83, 0x7F, 0x9F, 0x83, 0x00, 0xC1, 0xC0, 0xE0, 0x18, 0x30, 0x61, 0xF7, 0xFC, 0xF1, 0xE3, 0xC6,
-    0xFC, 0xF8, 0x30, 0x6F, 0x9E, 0x00, 0x18, 0x3C, 0x3C, 0xC3, 0xC3, 0xC3, 0xC3, 0xFF, 0xFF, 0xC3, 0xC3, 0xC3, 0xC3,
-    0x31, 0xE7, 0xB0, 0xC3, 0xEF, 0xFB, 0xCF, 0x3C, 0xF3, 0xCC, 0x61, 0xBF, 0xFF, 0xFD, 0x86, 0x7F, 0x9F, 0xE6, 0x19,
-    0x86, 0x61, 0x98, 0x60, 0x61, 0xF3, 0xE3, 0xE7, 0xEE, 0xD9, 0xB3, 0x66, 0xCD, 0x98, 0x7F, 0xEC, 0xC6, 0x31, 0x8C,
-    0x63, 0x18, 0xC6, 0x00, 0x7F, 0xEC, 0x86, 0x31, 0x8C, 0x63, 0x18, 0xFF, 0x66, 0x66, 0x66, 0x66, 0x66, 0xFF, 0x46,
-    0x66, 0x66, 0x66, 0x9F, 0xDC, 0xC6, 0x31, 0x8C, 0x63, 0x18, 0xC6, 0x00, 0x9F, 0xDC, 0x86, 0x31, 0x8C, 0x63, 0x18,
-    0x66, 0x66, 0x66, 0x66, 0x66, 0x6C, 0xF6, 0x66, 0x46, 0x66, 0x66, 0x66, 0x6C, 0xF6, 0xEF, 0xFF, 0xFF, 0xBF, 0xFF,
-    0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xE3, 0xF3, 0xFF, 0xDE, 0xDE, 0xE7, 0xBD, 0xEF, 0x7B, 0xDE, 0xC6, 0x33, 0x10,
-    0x0C, 0x3C, 0x78, 0x60, 0xC1, 0x83, 0x06, 0x0D, 0x1B, 0x37, 0xE7, 0x80, 0x6F, 0xB4, 0x66, 0x66, 0x66, 0x66, 0x6C,
-    0x80, 0xC3, 0xC7, 0xCE, 0xDC, 0xF8, 0xF8, 0xDC, 0xCC, 0xC6, 0xC3, 0x38, 0x1C, 0x38, 0x30, 0xC3, 0x0C, 0xF7, 0xFB,
-    0xCE, 0x3C, 0xDB, 0x37, 0x0E, 0x71, 0x80, 0x8F, 0x7F, 0xBC, 0xE3, 0xCD, 0xB3, 0x30, 0xE1, 0x86, 0x0C, 0x18, 0x30,
-    0x60, 0xC1, 0x83, 0x07, 0xEF, 0xE0, 0x7A, 0x6D, 0xB6, 0xDB, 0x6C, 0xC1, 0x83, 0x06, 0x0C, 0x18, 0x30, 0x60, 0xFD,
-    0xFD, 0xC1, 0xC7, 0x0C, 0x00, 0x66, 0x66, 0x66, 0x66, 0x66, 0xEF, 0xEC, 0x0D, 0x9B, 0x36, 0x6C, 0x18, 0x30, 0x60,
-    0xC1, 0xFB, 0xF8, 0x3F, 0xFF, 0xCC, 0xCC, 0xCC, 0xC0, 0xC1, 0x83, 0x06, 0x0C, 0xD9, 0xB0, 0x60, 0xFD, 0xFC, 0xCC,
-    0xCC, 0xFF, 0xCC, 0xCC, 0x60, 0x60, 0x78, 0x78, 0xF0, 0xE0, 0x60, 0x60, 0x7E, 0x7F, 0x66, 0x67, 0xFE, 0x66, 0x66,
-    0x0C, 0x1C, 0x18, 0xC3, 0xE3, 0xF3, 0xF3, 0xFB, 0xDF, 0xCF, 0xCF, 0xC7, 0xC3, 0x18, 0x63, 0x8C, 0x7B, 0xFC, 0xF3,
-    0xCF, 0x3C, 0xF3, 0xC3, 0xE3, 0xF3, 0xF3, 0xFB, 0xDF, 0xCF, 0xCF, 0xC7, 0xC3, 0x38, 0x1C, 0x38, 0x30, 0x7B, 0xFC,
-    0xF3, 0xCF, 0x3C, 0xF3, 0x70, 0xE7, 0x18, 0x3C, 0x3C, 0x18, 0xC3, 0xE3, 0xF3, 0xF3, 0xFB, 0xDF, 0xCF, 0xCF, 0xC7,
-    0xC3, 0x79, 0xE3, 0x1E, 0xFF, 0x3C, 0xF3, 0xCF, 0x3C, 0xC0, 0x81, 0x83, 0x05, 0xE7, 0xEC, 0xD9, 0xB3, 0x66, 0xCD,
-    0x98, 0xC3, 0xE3, 0xF3, 0xF3, 0xFB, 0xDF, 0xCF, 0xCF, 0xC7, 0xC3, 0x03, 0x03, 0x03, 0x7B, 0xFC, 0xF3, 0xCF, 0x3C,
-    0xF3, 0x0C, 0x31, 0x84, 0x3E, 0x1F, 0x0F, 0x8F, 0xEE, 0x3E, 0x0F, 0x07, 0x83, 0xC1, 0xE1, 0xDF, 0xC7, 0xC0, 0x3C,
-    0x3C, 0x3C, 0x7E, 0xE7, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x36, 0x1F, 0x07, 0x07, 0xC7, 0xF7, 0x1F, 0x07, 0x83, 0xC1,
-    0xE0, 0xF0, 0xEF, 0xE3, 0xE0, 0x36, 0x3E, 0x1C, 0x3C, 0x7E, 0xE7, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x1B, 0x1F, 0x8D,
-    0x87, 0xC7, 0xF7, 0x1F, 0x07, 0x83, 0xC1, 0xE0, 0xF0, 0xEF, 0xE3, 0xE0, 0x1E, 0x3E, 0x3C, 0x3C, 0x7E, 0xE7, 0xC3,
-    0xC3, 0xC7, 0x7E, 0x3C, 0x3F, 0xFB, 0xFF, 0xF9, 0xC1, 0x86, 0x0C, 0x3F, 0x61, 0xFB, 0x0C, 0x18, 0x60, 0xC7, 0x03,
-    0xFF, 0x0F, 0xFC, 0x3D, 0xE3, 0xFF, 0xB9, 0xCF, 0x87, 0xFC, 0x3F, 0xE3, 0x85, 0xFF, 0xE7, 0xBE, 0x18, 0x38, 0x30,
-    0xFE, 0xFF, 0xC3, 0xC7, 0xFE, 0xFE, 0xC7, 0xC3, 0xC3, 0xC3, 0x33, 0x98, 0xEF, 0xEF, 0x18, 0xC6, 0x30, 0xFE, 0xFF,
-    0xC3, 0xC7, 0xFE, 0xFE, 0xC7, 0xC3, 0xC3, 0xC3, 0x38, 0x1C, 0x38, 0x30, 0x77, 0xF7, 0x8C, 0x63, 0x18, 0xE3, 0xB9,
-    0x80, 0x3C, 0x3C, 0x18, 0xFE, 0xFF, 0xC3, 0xC7, 0xFE, 0xFE, 0xC7, 0xC3, 0xC3, 0xC3, 0xF7, 0x98, 0xEF, 0xEF, 0x18,
-    0xC6, 0x30, 0x18, 0x70, 0xC3, 0xEF, 0xF8, 0xFC, 0x3E, 0x1E, 0x0E, 0x1F, 0xF7, 0xC0, 0x18, 0x70, 0xC3, 0xEF, 0xF8,
-    0xFF, 0x3F, 0x87, 0xFD, 0xF0, 0x18, 0x78, 0xF3, 0xEF, 0xF8, 0xFC, 0x3E, 0x1E, 0x0E, 0x1F, 0xF7, 0xC0, 0x18, 0x78,
-    0xF3, 0xEF, 0xF8, 0xFF, 0x3F, 0x87, 0xFD, 0xF0, 0x7D, 0xFF, 0x1F, 0x87, 0xC3, 0xC1, 0xC3, 0xFE, 0xF8, 0xC0, 0xC7,
-    0x0C, 0x00, 0x7D, 0xFF, 0x1F, 0xE7, 0xF0, 0xFF, 0xBE, 0x18, 0x18, 0xE1, 0x80, 0x3C, 0x78, 0x63, 0xEF, 0xF8, 0xFC,
-    0x3E, 0x1E, 0x0E, 0x1F, 0xF7, 0xC0, 0x3C, 0x78, 0x63, 0xEF, 0xF8, 0xFF, 0x3F, 0x87, 0xFD, 0xF0, 0xFF, 0xFF, 0xC6,
-    0x03, 0x01, 0x80, 0xC0, 0x60, 0x30, 0x18, 0x0C, 0x06, 0x01, 0x83, 0x81, 0x80, 0x63, 0x3D, 0xE6, 0x31, 0x8C, 0x71,
-    0xCC, 0x37, 0x30, 0x3C, 0x3C, 0x18, 0xFF, 0xFF, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x0D, 0xB6, 0xFF,
-    0xF1, 0x86, 0x18, 0x61, 0xC3, 0x80, 0xFF, 0xFF, 0x18, 0x18, 0x7E, 0x7E, 0x18, 0x18, 0x18, 0x18, 0x63, 0x3D, 0xE6,
-    0x73, 0xCC, 0x71, 0xC0, 0x1E, 0x3E, 0x3C, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x3D, 0xF7,
-    0xA3, 0xCF, 0x3C, 0xF3, 0xCF, 0xF7, 0x80, 0x3C, 0x3C, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C,
-    0x79, 0xE8, 0xF3, 0xCF, 0x3C, 0xF3, 0xFD, 0xE0, 0x36, 0x3E, 0x1C, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC7,
-    0x7E, 0x3C, 0x6D, 0xF3, 0xA3, 0xCF, 0x3C, 0xF3, 0xCF, 0xF7, 0x80, 0x18, 0x3C, 0x3C, 0xDB, 0xC3, 0xC3, 0xC3, 0xC3,
-    0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x31, 0xE7, 0xAF, 0xCF, 0x3C, 0xF3, 0xCF, 0xF7, 0x80, 0x1E, 0x3E, 0x3C, 0xC3, 0xC3,
-    0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x3D, 0xF7, 0xA3, 0xCF, 0x3C, 0xF3, 0xCF, 0xF7, 0x80, 0xC3, 0xC3,
-    0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0x18, 0x30, 0x3C, 0x1C, 0x8D, 0x9B, 0x36, 0x6C, 0xD9, 0xBF, 0x3E,
-    0x0C, 0x30, 0x78, 0x70, 0x03, 0x00, 0x1E, 0x00, 0x78, 0x20, 0xC3, 0xC3, 0x0F, 0x0C, 0x3C, 0x79, 0xD9, 0xE6, 0x6F,
-    0xF8, 0xF3, 0xC3, 0xCF, 0x0F, 0x3C, 0x18, 0x60, 0x0C, 0x07, 0x81, 0xE2, 0x03, 0xCC, 0xF7, 0xF7, 0xF9, 0xFE, 0x7F,
-    0x8C, 0xC3, 0x30, 0x18, 0x3C, 0x3C, 0xC3, 0xC3, 0xE7, 0x7E, 0x3C, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3C, 0x3C,
-    0x83, 0xC7, 0x66, 0x6E, 0x3C, 0x3C, 0x18, 0x18, 0x18, 0x70, 0x60, 0x3C, 0x3C, 0xC3, 0xC3, 0xE7, 0x7E, 0x3C, 0x18,
-    0x18, 0x18, 0x18, 0x18, 0x0C, 0x1C, 0x18, 0xFF, 0xFF, 0x07, 0x0E, 0x1C, 0x38, 0x70, 0xE0, 0xFE, 0xFF, 0x0C, 0x38,
-    0x67, 0xFF, 0xE3, 0x8E, 0x38, 0xE1, 0xFB, 0xF8, 0x0C, 0x0C, 0xFF, 0xFF, 0x07, 0x0E, 0x1C, 0x38, 0x70, 0xE0, 0xFE,
-    0xFF, 0x18, 0x33, 0xFF, 0xF1, 0xC7, 0x1C, 0x70, 0xFD, 0xFC, 0x3C, 0x3C, 0x18, 0xFF, 0xFF, 0x07, 0x0E, 0x1C, 0x38,
-    0x70, 0xE0, 0xFE, 0xFF, 0x3C, 0x78, 0x67, 0xFF, 0xE3, 0x8E, 0x38, 0xE1, 0xFB, 0xF8, 0x1E, 0x3F, 0x73, 0xFE, 0xFE,
-    0xFE, 0xFE, 0x62, 0x3F, 0x1E,
-};
-
-static const EpdGlyph babyblueGlyphs[] = {
-    {0, 0, 5, 0, 0, 0, 0},          //
-    {2, 10, 3, 1, 10, 3, 0},        // !
-    {4, 5, 5, 1, 11, 3, 3},         // "
-    {9, 11, 10, 0, 11, 13, 6},      // #
-    {8, 14, 9, 0, 12, 14, 19},      // $
-    {11, 11, 13, 1, 11, 16, 33},    // %
-    {9, 11, 11, 1, 11, 13, 49},     // &
-    {2, 4, 3, 1, 11, 1, 62},        // '
-    {4, 15, 5, 1, 11, 8, 63},       // (
-    {4, 15, 5, 1, 11, 8, 71},       // )
-    {6, 6, 6, 0, 11, 5, 79},        // *
-    {8, 8, 9, 0, 9, 8, 84},         // +
-    {2, 5, 3, 1, 3, 2, 92},         // ,
-    {5, 2, 5, 0, 5, 2, 94},         // -
-    {2, 2, 3, 1, 2, 1, 96},         // .
-    {6, 11, 6, 0, 11, 9, 97},       // /
-    {8, 11, 9, 0, 11, 11, 106},     // 0
-    {5, 11, 6, 1, 11, 7, 117},      // 1
-    {8, 11, 9, 0, 11, 11, 124},     // 2
-    {8, 11, 10, 1, 11, 11, 135},    // 3
-    {8, 11, 9, 0, 11, 11, 146},     // 4
-    {7, 11, 9, 1, 11, 10, 157},     // 5
-    {8, 11, 9, 0, 11, 11, 167},     // 6
-    {9, 11, 10, 0, 11, 13, 178},    // 7
-    {8, 11, 9, 0, 11, 11, 191},     // 8
-    {8, 11, 9, 0, 11, 11, 202},     // 9
-    {2, 8, 3, 1, 8, 2, 213},        // :
-    {2, 11, 3, 1, 8, 3, 215},       // ;
-    {7, 8, 9, 1, 9, 7, 218},        // <
-    {8, 5, 9, 0, 8, 5, 225},        // =
-    {7, 8, 7, 0, 9, 7, 230},        // >
-    {7, 11, 9, 1, 11, 10, 237},     // ?
-    {14, 15, 15, 0, 11, 27, 247},   // @
-    {7, 10, 9, 1, 10, 9, 274},      // A
-    {8, 10, 10, 1, 10, 10, 283},    // B
-    {9, 10, 11, 1, 10, 12, 293},    // C
-    {8, 10, 10, 1, 10, 10, 305},    // D
-    {7, 10, 9, 1, 10, 9, 315},      // E
-    {7, 10, 9, 1, 10, 9, 324},      // F
-    {9, 10, 11, 1, 10, 12, 333},    // G
-    {8, 10, 10, 1, 10, 10, 345},    // H
-    {2, 10, 3, 1, 10, 3, 355},      // I
-    {6, 10, 6, 0, 10, 8, 358},      // J
-    {8, 10, 10, 1, 10, 10, 366},    // K
-    {7, 10, 9, 1, 10, 9, 376},      // L
-    {10, 10, 12, 1, 10, 13, 385},   // M
-    {8, 10, 10, 1, 10, 10, 398},    // N
-    {9, 10, 11, 1, 10, 12, 408},    // O
-    {8, 10, 10, 1, 10, 10, 420},    // P
-    {9, 10, 11, 1, 10, 12, 430},    // Q
-    {8, 10, 10, 1, 10, 10, 442},    // R
-    {7, 10, 9, 1, 10, 9, 452},      // S
-    {8, 10, 9, 0, 10, 10, 461},     // T
-    {8, 10, 10, 1, 10, 10, 471},    // U
-    {8, 10, 10, 1, 10, 10, 481},    // V
-    {14, 10, 15, 0, 10, 18, 491},   // W
-    {10, 10, 11, 0, 10, 13, 509},   // X
-    {8, 10, 10, 1, 10, 10, 522},    // Y
-    {8, 10, 9, 0, 10, 10, 532},     // Z
-    {4, 14, 5, 1, 10, 7, 542},      // [
-    {7, 10, 7, 0, 10, 9, 549},      // <backslash>
-    {4, 14, 4, 0, 10, 7, 558},      // ]
-    {8, 7, 9, 0, 11, 7, 565},       // ^
-    {8, 2, 9, 0, -2, 2, 572},       // _
-    {3, 3, 3, 0, 11, 2, 574},       // `
-    {7, 8, 7, 0, 8, 7, 576},        // a
-    {7, 10, 9, 1, 10, 9, 583},      // b
-    {7, 8, 7, 0, 8, 7, 592},        // c
-    {7, 10, 7, 0, 10, 9, 599},      // d
-    {8, 8, 9, 0, 8, 8, 608},        // e
-    {5, 11, 5, 0, 11, 7, 616},      // f
-    {7, 12, 7, 0, 8, 11, 623},      // g
-    {6, 10, 7, 1, 10, 8, 634},      // h
-    {2, 10, 3, 1, 10, 3, 642},      // i
-    {3, 14, 3, 0, 10, 6, 645},      // j
-    {6, 10, 7, 1, 10, 8, 651},      // k
-    {2, 10, 3, 1, 10, 3, 659},      // l
-    {10, 8, 12, 1, 8, 10, 662},     // m
-    {6, 8, 7, 1, 8, 6, 672},        // n
-    {8, 8, 9, 0, 8, 8, 678},        // o
-    {7, 11, 9, 1, 8, 10, 686},      // p
-    {7, 11, 7, 0, 8, 10, 696},      // q
-    {5, 8, 6, 1, 8, 5, 706},        // r
-    {7, 8, 7, 0, 8, 7, 711},        // s
-    {5, 10, 5, 0, 10, 7, 718},      // t
-    {6, 8, 7, 1, 8, 6, 725},        // u
-    {8, 8, 9, 0, 8, 8, 731},        // v
-    {10, 8, 11, 0, 8, 10, 739},     // w
-    {8, 8, 9, 0, 8, 8, 749},        // x
-    {8, 11, 9, 0, 8, 11, 757},      // y
-    {7, 8, 7, 0, 8, 7, 768},        // z
-    {5, 15, 5, 0, 11, 10, 775},     // {
-    {2, 15, 3, 1, 11, 4, 785},      // |
-    {6, 15, 6, 0, 11, 12, 789},     // }
-    {9, 3, 10, 0, 7, 4, 801},       // ~
-    {2, 12, 4, 2, 8, 3, 805},       // ¡
-    {7, 13, 7, 0, 10, 12, 808},     // ¢
-    {8, 10, 9, 0, 10, 10, 820},     // £
-    {8, 8, 9, 0, 9, 8, 830},        // ¤
-    {8, 10, 9, 0, 10, 10, 838},     // ¥
-    {2, 15, 3, 1, 11, 4, 848},      // ¦
-    {8, 15, 9, 0, 11, 15, 852},     // §
-    {5, 3, 5, 0, 11, 2, 867},       // ¨
-    {10, 11, 11, 0, 11, 14, 869},   // ©
-    {5, 6, 5, 0, 11, 4, 883},       // ª
-    {7, 7, 9, 1, 8, 7, 887},        // «
-    {8, 5, 9, 0, 8, 5, 894},        // ¬
-    {10, 11, 11, 0, 11, 14, 899},   // ®
-    {8, 2, 9, 0, 12, 2, 913},       // ¯
-    {4, 5, 5, 1, 11, 3, 915},       // °
-    {8, 9, 9, 0, 9, 9, 918},        // ±
-    {5, 8, 5, 0, 11, 5, 927},       // ²
-    {5, 6, 5, 0, 11, 4, 932},       // ³
-    {3, 3, 4, 1, 11, 2, 936},       // ´
-    {6, 12, 9, 2, 8, 9, 938},       // µ
-    {8, 14, 9, 0, 10, 14, 947},     // ¶
-    {2, 2, 3, 1, 6, 1, 961},        // ·
-    {4, 4, 4, 0, 0, 2, 962},        // ¸
-    {4, 7, 4, 0, 12, 4, 964},       // ¹
-    {6, 6, 6, 0, 11, 5, 968},       // º
-    {7, 7, 9, 1, 8, 7, 973},        // »
-    {12, 12, 13, 0, 12, 18, 980},   // ¼
-    {12, 11, 13, 0, 11, 17, 998},   // ½
-    {12, 11, 13, 0, 11, 17, 1015},  // ¾
-    {7, 12, 9, 1, 8, 11, 1032},     // ¿
-    {7, 13, 9, 1, 13, 12, 1043},    // À
-    {7, 13, 9, 1, 13, 12, 1055},    // Á
-    {7, 13, 9, 1, 13, 12, 1067},    // Â
-    {7, 13, 9, 1, 13, 12, 1079},    // Ã
-    {7, 12, 9, 1, 12, 11, 1091},    // Ä
-    {7, 13, 9, 1, 13, 12, 1102},    // Å
-    {13, 11, 14, 0, 11, 18, 1114},  // Æ
-    {9, 14, 11, 1, 10, 16, 1132},   // Ç
-    {7, 13, 9, 1, 13, 12, 1148},    // È
-    {7, 13, 9, 1, 13, 12, 1160},    // É
-    {7, 13, 9, 1, 13, 12, 1172},    // Ê
-    {7, 12, 9, 1, 12, 11, 1184},    // Ë
-    {3, 13, 3, 0, 13, 5, 1195},     // Ì
-    {3, 13, 4, 1, 13, 5, 1200},     // Í
-    {4, 13, 4, 0, 13, 7, 1205},     // Î
-    {4, 12, 4, 0, 12, 6, 1212},     // Ï
-    {9, 10, 10, 0, 10, 12, 1218},   // Ð
-    {8, 13, 10, 1, 13, 13, 1230},   // Ñ
-    {9, 13, 11, 1, 13, 15, 1243},   // Ò
-    {9, 13, 11, 1, 13, 15, 1258},   // Ó
-    {9, 13, 11, 1, 13, 15, 1273},   // Ô
-    {9, 13, 11, 1, 13, 15, 1288},   // Õ
-    {9, 12, 11, 1, 12, 14, 1303},   // Ö
-    {6, 6, 7, 1, 8, 5, 1317},       // ×
-    {10, 10, 11, 0, 10, 13, 1322},  // Ø
-    {8, 13, 10, 1, 13, 13, 1335},   // Ù
-    {8, 13, 10, 1, 13, 13, 1348},   // Ú
-    {8, 13, 10, 1, 13, 13, 1361},   // Û
-    {8, 12, 10, 1, 12, 12, 1374},   // Ü
-    {8, 13, 10, 1, 13, 13, 1386},   // Ý
-    {8, 10, 10, 1, 10, 10, 1399},   // Þ
-    {7, 11, 9, 1, 11, 10, 1409},    // ß
-    {7, 11, 7, 0, 11, 10, 1419},    // à
-    {7, 11, 7, 0, 11, 10, 1429},    // á
-    {7, 11, 7, 0, 11, 10, 1439},    // â
-    {7, 11, 7, 0, 11, 10, 1449},    // ã
-    {7, 10, 7, 0, 10, 9, 1459},     // ä
-    {7, 12, 7, 0, 12, 11, 1468},    // å
-    {12, 8, 13, 0, 8, 12, 1479},    // æ
-    {7, 12, 7, 0, 8, 11, 1491},     // ç
-    {8, 11, 9, 0, 11, 11, 1502},    // è
-    {8, 11, 9, 0, 11, 11, 1513},    // é
-    {8, 11, 9, 0, 11, 11, 1524},    // ê
-    {8, 10, 9, 0, 10, 10, 1535},    // ë
-    {3, 11, 3, 0, 11, 5, 1545},     // ì
-    {3, 11, 4, 1, 11, 5, 1550},     // í
-    {4, 11, 4, 0, 11, 6, 1555},     // î
-    {4, 10, 4, 0, 10, 5, 1561},     // ï
-    {8, 11, 9, 0, 11, 11, 1566},    // ð
-    {6, 11, 7, 1, 11, 9, 1577},     // ñ
-    {8, 11, 9, 0, 11, 11, 1586},    // ò
-    {8, 11, 9, 0, 11, 11, 1597},    // ó
-    {8, 11, 9, 0, 11, 11, 1608},    // ô
-    {8, 11, 9, 0, 11, 11, 1619},    // õ
-    {8, 10, 9, 0, 10, 10, 1630},    // ö
-    {8, 6, 9, 0, 8, 6, 1640},       // ÷
-    {8, 8, 9, 0, 8, 8, 1646},       // ø
-    {6, 11, 7, 1, 11, 9, 1654},     // ù
-    {6, 11, 7, 1, 11, 9, 1663},     // ú
-    {6, 11, 7, 1, 11, 9, 1672},     // û
-    {6, 10, 7, 1, 10, 8, 1681},     // ü
-    {8, 14, 9, 0, 11, 14, 1689},    // ý
-    {7, 13, 9, 1, 10, 12, 1703},    // þ
-    {8, 13, 9, 0, 10, 13, 1715},    // ÿ
-    {7, 12, 9, 1, 12, 11, 1728},    // Ā
-    {7, 10, 7, 0, 10, 9, 1739},     // ā
-    {7, 13, 9, 1, 13, 12, 1748},    // Ă
-    {7, 11, 7, 0, 11, 10, 1760},    // ă
-    {8, 14, 10, 1, 10, 14, 1770},   // Ą
-    {8, 12, 9, 0, 8, 12, 1784},     // ą
-    {9, 13, 11, 1, 13, 15, 1796},   // Ć
-    {7, 11, 7, 0, 11, 10, 1811},    // ć
-    {9, 13, 11, 1, 13, 15, 1821},   // Ĉ
-    {7, 11, 7, 0, 11, 10, 1836},    // ĉ
-    {9, 12, 11, 1, 12, 14, 1846},   // Ċ
-    {7, 10, 7, 0, 10, 9, 1860},     // ċ
-    {9, 13, 11, 1, 13, 15, 1869},   // Č
-    {7, 11, 7, 0, 11, 10, 1884},    // č
-    {8, 13, 10, 1, 13, 13, 1894},   // Ď
-    {9, 11, 10, 0, 11, 13, 1907},   // ď
-    {9, 10, 10, 0, 10, 12, 1920},   // Đ
-    {8, 11, 9, 0, 11, 11, 1932},    // đ
-    {7, 12, 9, 1, 12, 11, 1943},    // Ē
-    {8, 10, 9, 0, 10, 10, 1954},    // ē
-    {7, 13, 9, 1, 13, 12, 1964},    // Ĕ
-    {8, 11, 9, 0, 11, 11, 1976},    // ĕ
-    {7, 12, 9, 1, 12, 11, 1987},    // Ė
-    {8, 10, 9, 0, 10, 10, 1998},    // ė
-    {8, 14, 10, 1, 10, 14, 2008},   // Ę
-    {8, 12, 9, 0, 8, 12, 2022},     // ę
-    {7, 13, 9, 1, 13, 12, 2034},    // Ě
-    {8, 11, 9, 0, 11, 11, 2046},    // ě
-    {9, 13, 11, 1, 13, 15, 2057},   // Ĝ
-    {7, 15, 7, 0, 11, 14, 2072},    // ĝ
-    {9, 13, 11, 1, 13, 15, 2086},   // Ğ
-    {7, 15, 7, 0, 11, 14, 2101},    // ğ
-    {9, 12, 11, 1, 12, 14, 2115},   // Ġ
-    {7, 14, 7, 0, 10, 13, 2129},    // ġ
-    {9, 14, 11, 1, 10, 16, 2142},   // Ģ
-    {7, 15, 7, 0, 11, 14, 2158},    // ģ
-    {8, 13, 10, 1, 13, 13, 2172},   // Ĥ
-    {6, 13, 7, 1, 13, 10, 2185},    // ĥ
-    {10, 10, 11, 0, 10, 13, 2195},  // Ħ
-    {7, 11, 7, 0, 11, 10, 2208},    // ħ
-    {5, 13, 5, 0, 13, 9, 2218},     // Ĩ
-    {5, 11, 5, 0, 11, 7, 2227},     // ĩ
-    {4, 12, 4, 0, 12, 6, 2234},     // Ī
-    {4, 10, 4, 0, 10, 5, 2240},     // ī
-    {5, 13, 5, 0, 13, 9, 2245},     // Ĭ
-    {5, 11, 5, 0, 11, 7, 2254},     // ĭ
-    {4, 14, 4, 0, 10, 7, 2261},     // Į
-    {4, 14, 4, 0, 10, 7, 2268},     // į
-    {2, 12, 3, 1, 12, 3, 2275},     // İ
-    {2, 8, 3, 1, 8, 2, 2278},       // ı
-    {8, 10, 10, 1, 10, 10, 2280},   // IJ
-    {5, 14, 6, 1, 10, 9, 2290},     // ij
-    {7, 13, 7, 0, 13, 12, 2299},    // Ĵ
-    {4, 15, 4, 0, 11, 8, 2311},     // ĵ
-    {8, 14, 10, 1, 10, 14, 2319},   // Ķ
-    {6, 14, 7, 1, 10, 11, 2333},    // ķ
-    {6, 8, 7, 1, 8, 6, 2344},       // ĸ
-    {7, 13, 9, 1, 13, 12, 2350},    // Ĺ
-    {3, 13, 4, 1, 13, 5, 2362},     // ĺ
-    {7, 14, 9, 1, 10, 13, 2367},    // Ļ
-    {4, 14, 4, 0, 10, 7, 2380},     // ļ
-    {7, 11, 9, 1, 11, 10, 2387},    // Ľ
-    {4, 11, 5, 1, 11, 6, 2397},     // ľ
-    {7, 10, 9, 1, 10, 9, 2403},     // Ŀ
-    {4, 10, 5, 1, 10, 5, 2412},     // ŀ
-    {8, 10, 9, 0, 10, 10, 2417},    // Ł
-    {4, 10, 4, 0, 10, 5, 2427},     // ł
-    {8, 13, 10, 1, 13, 13, 2432},   // Ń
-    {6, 12, 7, 1, 12, 9, 2445},     // ń
-    {8, 14, 10, 1, 10, 14, 2454},   // Ņ
-    {6, 12, 7, 1, 8, 9, 2468},      // ņ
-    {8, 13, 10, 1, 13, 13, 2477},   // Ň
-    {6, 11, 7, 1, 11, 9, 2490},     // ň
-    {7, 11, 7, 0, 11, 10, 2499},    // ʼn
-    {8, 13, 10, 1, 10, 13, 2509},   // Ŋ
-    {6, 12, 7, 1, 8, 9, 2522},      // ŋ
-    {9, 12, 11, 1, 12, 14, 2531},   // Ō
-    {8, 10, 9, 0, 10, 10, 2545},    // ō
-    {9, 13, 11, 1, 13, 15, 2555},   // Ŏ
-    {8, 11, 9, 0, 11, 11, 2570},    // ŏ
-    {9, 13, 11, 1, 13, 15, 2581},   // Ő
-    {8, 11, 9, 0, 11, 11, 2596},    // ő
-    {13, 11, 15, 1, 11, 18, 2607},  // Œ
-    {13, 8, 14, 0, 8, 13, 2625},    // œ
-    {8, 13, 10, 1, 13, 13, 2638},   // Ŕ
-    {5, 11, 6, 1, 11, 7, 2651},     // ŕ
-    {8, 14, 10, 1, 10, 14, 2658},   // Ŗ
-    {5, 12, 6, 1, 8, 8, 2672},      // ŗ
-    {8, 13, 10, 1, 13, 13, 2680},   // Ř
-    {5, 11, 6, 1, 11, 7, 2693},     // ř
-    {7, 13, 9, 1, 13, 12, 2700},    // Ś
-    {7, 11, 7, 0, 11, 10, 2712},    // ś
-    {7, 13, 9, 1, 13, 12, 2722},    // Ŝ
-    {7, 11, 7, 0, 11, 10, 2734},    // ŝ
-    {7, 14, 9, 1, 10, 13, 2744},    // Ş
-    {7, 12, 7, 0, 8, 11, 2757},     // ş
-    {7, 13, 9, 1, 13, 12, 2768},    // Š
-    {7, 11, 7, 0, 11, 10, 2780},    // š
-    {9, 14, 10, 0, 10, 16, 2790},   // Ţ
-    {5, 14, 5, 0, 10, 9, 2806},     // ţ
-    {8, 13, 9, 0, 13, 13, 2815},    // Ť
-    {6, 11, 6, 0, 11, 9, 2828},     // ť
-    {8, 10, 9, 0, 10, 10, 2837},    // Ŧ
-    {5, 10, 5, 0, 10, 7, 2847},     // ŧ
-    {8, 13, 10, 1, 13, 13, 2854},   // Ũ
-    {6, 11, 7, 1, 11, 9, 2867},     // ũ
-    {8, 12, 10, 1, 12, 12, 2876},   // Ū
-    {6, 10, 7, 1, 10, 8, 2888},     // ū
-    {8, 13, 10, 1, 13, 13, 2896},   // Ŭ
-    {6, 11, 7, 1, 11, 9, 2909},     // ŭ
-    {8, 13, 10, 1, 13, 13, 2918},   // Ů
-    {6, 11, 7, 1, 11, 9, 2931},     // ů
-    {8, 13, 10, 1, 13, 13, 2940},   // Ű
-    {6, 11, 7, 1, 11, 9, 2953},     // ű
-    {8, 14, 10, 1, 10, 14, 2962},   // Ų
-    {7, 12, 9, 1, 8, 11, 2976},     // ų
-    {14, 13, 15, 0, 13, 23, 2987},  // Ŵ
-    {10, 11, 11, 0, 11, 14, 3010},  // ŵ
-    {8, 13, 10, 1, 13, 13, 3024},   // Ŷ
-    {8, 14, 9, 0, 11, 14, 3037},    // ŷ
-    {8, 12, 10, 1, 12, 12, 3051},   // Ÿ
-    {8, 13, 9, 0, 13, 13, 3063},    // Ź
-    {7, 11, 7, 0, 11, 10, 3076},    // ź
-    {8, 12, 9, 0, 12, 12, 3086},    // Ż
-    {7, 10, 7, 0, 10, 9, 3098},     // ż
-    {8, 13, 9, 0, 13, 13, 3107},    // Ž
-    {7, 11, 7, 0, 11, 10, 3120},    // ž
-    {8, 10, 9, 0, 10, 10, 3130},    // €
-};
-
-static const EpdUnicodeInterval babyblueIntervals[] = {
-    {0x20, 0x7E, 0x0}, {0xA1, 0xAC, 0x5F}, {0xAE, 0xFF, 0x6B}, {0x100, 0x17E, 0xBD}, {0x20AC, 0x20AC, 0x13C},
-};
-
-static const EpdFontData babyblue = {
-    babyblueBitmaps, babyblueGlyphs, babyblueIntervals, 5, 17, 13, -4,
-};

lib/EpdFont/builtinFonts/ubuntu_10.h

@@ -1,766 +0,0 @@
-/**
- * generated by fontconvert.py
- * name: ubuntu_10
- * size: 10
- */
-#pragma once
-#include "EpdFontData.h"
-
-static const uint8_t ubuntu_10Bitmaps[7175] = {
-    0xEE, 0xEE, 0xEE, 0xE6, 0x66, 0x00, 0xEF, 0xE0, 0xEF, 0xDF, 0xBF, 0x6E, 0xC0, 0x1C, 0x61, 0xCE, 0x1C, 0xE1, 0x8E,
-    0xFF, 0xFF, 0xFF, 0x39, 0xC3, 0x9C, 0x39, 0xCF, 0xFF, 0xFF, 0xF7, 0x18, 0x73, 0x87, 0x38, 0x63, 0x80, 0x0C, 0x03,
-    0x03, 0xF9, 0xFE, 0xFB, 0xB8, 0x0E, 0x01, 0xE0, 0x7E, 0x07, 0xE0, 0x78, 0x07, 0x01, 0xF9, 0xFF, 0xFB, 0xFC, 0x0C,
-    0x03, 0x00, 0xC0, 0x7C, 0x38, 0xEE, 0x38, 0xC6, 0x70, 0xC6, 0x70, 0xC6, 0xE0, 0xEE, 0xE0, 0x7D, 0xC0, 0x01, 0x80,
-    0x03, 0xBE, 0x07, 0x7F, 0x07, 0x63, 0x0E, 0x63, 0x0E, 0x63, 0x1C, 0x77, 0x1C, 0x3E, 0x0F, 0x80, 0x7F, 0x03, 0xDC,
-    0x0E, 0x30, 0x39, 0xC0, 0xEF, 0x01, 0xF8, 0x07, 0xC0, 0x7F, 0x19, 0xCE, 0xE6, 0x1F, 0x98, 0x3C, 0x79, 0xF1, 0xFF,
-    0xE3, 0xF9, 0xC0, 0xFF, 0xFE, 0x1C, 0x73, 0x8E, 0x71, 0xC6, 0x38, 0xE3, 0x8E, 0x38, 0xE1, 0x87, 0x1C, 0x38, 0xE1,
-    0xC7, 0xC3, 0x87, 0x1C, 0x38, 0xE3, 0x86, 0x18, 0x71, 0xC6, 0x18, 0xE3, 0x8E, 0x71, 0xCE, 0x30, 0x0C, 0x03, 0x07,
-    0xFD, 0xFE, 0x1E, 0x0F, 0xC3, 0xF8, 0xCC, 0x0C, 0x03, 0x00, 0xC0, 0x30, 0xFF, 0xFF, 0xF0, 0xC0, 0x30, 0x0C, 0x03,
-    0x00, 0x77, 0x77, 0x60, 0xFF, 0xF0, 0xFF, 0x80, 0x01, 0xC0, 0x60, 0x38, 0x0E, 0x03, 0x01, 0xC0, 0x70, 0x38, 0x0E,
-    0x03, 0x81, 0xC0, 0x70, 0x1C, 0x0E, 0x03, 0x80, 0xE0, 0x70, 0x1C, 0x06, 0x03, 0x80, 0x3F, 0x1F, 0xE7, 0xFB, 0x87,
-    0xE1, 0xF8, 0x7E, 0x1F, 0x87, 0xE1, 0xF8, 0x7E, 0x1F, 0x87, 0x7F, 0x9F, 0xE3, 0xF0, 0x0E, 0x3D, 0xFB, 0xF7, 0xE1,
-    0xC3, 0x87, 0x0E, 0x1C, 0x38, 0x70, 0xE1, 0xC3, 0x80, 0x7F, 0x3F, 0xEF, 0x79, 0x0E, 0x03, 0x80, 0xE0, 0x70, 0x3C,
-    0x1E, 0x0F, 0x07, 0x81, 0xC0, 0xE0, 0x3F, 0xFF, 0xFC, 0x7F, 0x3F, 0xC6, 0x78, 0x0E, 0x03, 0x83, 0xE3, 0xF0, 0xFC,
-    0x0F, 0x80, 0xE0, 0x1C, 0x07, 0xE7, 0xBF, 0xEF, 0xF0, 0x03, 0xC0, 0xF8, 0x1F, 0x07, 0xE1, 0xFC, 0x7B, 0x8E, 0x73,
-    0x8E, 0x71, 0xDF, 0xFF, 0xFF, 0x80, 0xE0, 0x1C, 0x03, 0x80, 0x70, 0x7F, 0x9F, 0xE7, 0x01, 0xC0, 0x70, 0x1F, 0x87,
-    0xF0, 0x7E, 0x03, 0xC0, 0x70, 0x1C, 0x0F, 0xE7, 0xBF, 0xEF, 0xF0, 0x0F, 0x87, 0xE3, 0xF1, 0xE0, 0x70, 0x3F, 0xCF,
-    0xFB, 0xDF, 0xE1, 0xF8, 0x7E, 0x1F, 0x87, 0x7B, 0xDF, 0xE3, 0xF0, 0xFF, 0xFF, 0xF0, 0x3C, 0x0E, 0x07, 0x01, 0xC0,
-    0xE0, 0x38, 0x1C, 0x07, 0x01, 0xC0, 0x60, 0x38, 0x0E, 0x03, 0x80, 0x3F, 0x1F, 0xEF, 0xFB, 0x87, 0xE1, 0xFC, 0xE7,
-    0xF8, 0xFC, 0x7F, 0xB8, 0xFE, 0x1F, 0x87, 0xF7, 0xFF, 0xE7, 0xF0, 0x3F, 0x1F, 0xEF, 0x7B, 0x87, 0xE1, 0xF8, 0x7F,
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-    0x01, 0xE0, 0x3F, 0x03, 0xF8, 0x1F, 0x80, 0x78, 0x07, 0x00, 0xEE, 0x7F, 0xFF, 0x3F, 0xC0, 0x0C, 0x0F, 0x0F, 0xC6,
-    0x60, 0x01, 0xF9, 0xFC, 0xF6, 0x70, 0x3E, 0x0F, 0xC1, 0xF0, 0x3B, 0x3D, 0xFE, 0xFE, 0x3F, 0xCF, 0xF9, 0xE7, 0x38,
-    0x07, 0x00, 0xF0, 0x1F, 0x81, 0xFC, 0x0F, 0xC0, 0x3C, 0x03, 0x80, 0x77, 0x3F, 0xFF, 0x9F, 0xE0, 0x70, 0x1E, 0x03,
-    0xC0, 0x3F, 0x3F, 0x9E, 0xCE, 0x07, 0xC1, 0xF8, 0x3E, 0x07, 0x67, 0xBF, 0xDF, 0xC3, 0x83, 0xE1, 0xE0, 0x19, 0x83,
-    0xF0, 0x3C, 0x03, 0x00, 0x00, 0x7F, 0x9F, 0xF3, 0xCE, 0x70, 0x0E, 0x01, 0xE0, 0x3F, 0x03, 0xF8, 0x1F, 0x80, 0x78,
-    0x07, 0x00, 0xEE, 0x7F, 0xFF, 0x3F, 0xC0, 0x33, 0x1F, 0x87, 0x81, 0x80, 0x01, 0xF9, 0xFC, 0xF6, 0x70, 0x3E, 0x0F,
-    0xC1, 0xF0, 0x3B, 0x3D, 0xFE, 0xFE, 0xFF, 0xFF, 0xFF, 0x0E, 0x00, 0xE0, 0x0E, 0x00, 0xE0, 0x0E, 0x00, 0xE0, 0x0E,
-    0x00, 0xE0, 0x0E, 0x00, 0xE0, 0x0E, 0x00, 0xE0, 0x0E, 0x00, 0xE0, 0x0F, 0x01, 0xF0, 0xE0, 0xE0, 0xE0, 0xFE, 0xFE,
-    0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xF6, 0x7E, 0x7E, 0x1C, 0x3C, 0x7C, 0x19, 0x81, 0xF8, 0x0F, 0x00, 0x60, 0x00,
-    0x0F, 0xFF, 0xFF, 0xF0, 0xE0, 0x0E, 0x00, 0xE0, 0x0E, 0x00, 0xE0, 0x0E, 0x00, 0xE0, 0x0E, 0x00, 0xE0, 0x0E, 0x00,
-    0xE0, 0x0E, 0x00, 0xE0, 0x0C, 0x0C, 0xEC, 0xEC, 0xE0, 0xFE, 0xFE, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xF6, 0x7E,
-    0x7E, 0xFF, 0xFF, 0xFF, 0x0E, 0x00, 0xE0, 0x0E, 0x00, 0xE0, 0x0E, 0x03, 0xFC, 0x3F, 0xC0, 0xE0, 0x0E, 0x00, 0xE0,
-    0x0E, 0x00, 0xE0, 0x0E, 0x00, 0xE0, 0xE0, 0xE0, 0xFE, 0xFE, 0xE0, 0xE0, 0xE0, 0xFE, 0xFE, 0xE0, 0xF6, 0x7E, 0x7E,
-    0x1E, 0xC1, 0xFC, 0x3F, 0x80, 0x00, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0,
-    0x7E, 0x07, 0xE0, 0x77, 0x07, 0x7D, 0xE3, 0xFE, 0x1F, 0xC0, 0x3F, 0x9F, 0xE7, 0xF0, 0x00, 0x00, 0x38, 0x7E, 0x1F,
-    0x87, 0xE1, 0xF8, 0x7E, 0x1F, 0x87, 0xE1, 0xFE, 0xF7, 0xFC, 0xFF, 0x1F, 0xC1, 0xFC, 0x00, 0x0E, 0x07, 0xE0, 0x7E,
-    0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0x70, 0x77, 0xDE, 0x3F, 0xE1, 0xFC,
-    0x3F, 0x0F, 0xC0, 0x00, 0x00, 0xE1, 0xF8, 0x7E, 0x1F, 0x87, 0xE1, 0xF8, 0x7E, 0x1F, 0x87, 0xFB, 0xDF, 0xF3, 0xFC,
-    0x1D, 0x81, 0xF8, 0x0F, 0x80, 0x00, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0,
-    0x7E, 0x07, 0xE0, 0x77, 0x07, 0x7D, 0xE3, 0xFE, 0x1F, 0xC0, 0x3F, 0x0F, 0xC1, 0xE0, 0x00, 0x00, 0x38, 0x7E, 0x1F,
-    0x87, 0xE1, 0xF8, 0x7E, 0x1F, 0x87, 0xE1, 0xFE, 0xF7, 0xFC, 0xFF, 0x0F, 0x00, 0xF8, 0x0F, 0x80, 0xF0, 0xE0, 0x7E,
-    0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x77, 0x07, 0x7D, 0xE3, 0xFE,
-    0x1F, 0xC0, 0x1E, 0x0F, 0x83, 0xE0, 0x78, 0x00, 0x38, 0x7E, 0x1F, 0x87, 0xE1, 0xF8, 0x7E, 0x1F, 0x87, 0xE1, 0xFE,
-    0xF7, 0xFC, 0xFF, 0x06, 0xE0, 0xEE, 0x1D, 0xC1, 0xD8, 0x00, 0x0E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0,
-    0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0x70, 0x77, 0xDE, 0x3F, 0xE1, 0xFC, 0x0D, 0x87, 0xF3, 0xB8, 0xCC,
-    0x00, 0x38, 0x7E, 0x1F, 0x87, 0xE1, 0xF8, 0x7E, 0x1F, 0x87, 0xE1, 0xFE, 0xF7, 0xFC, 0xFF, 0xE0, 0x7E, 0x07, 0xE0,
-    0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x77, 0x07, 0x7D, 0xE3, 0xFE, 0x1F, 0x80,
-    0x70, 0x07, 0x00, 0x78, 0xE1, 0xF8, 0x7E, 0x1F, 0x87, 0xE1, 0xF8, 0x7E, 0x1F, 0x87, 0xFB, 0xDF, 0xF3, 0xFC, 0x0E,
-    0x07, 0x01, 0xF0, 0x00, 0x60, 0x00, 0x1E, 0x00, 0x07, 0xE0, 0x00, 0xCC, 0x00, 0x00, 0x01, 0xC0, 0x01, 0xF8, 0x00,
-    0x3B, 0x87, 0x07, 0x70, 0xF0, 0xEE, 0x1E, 0x1D, 0xC7, 0xC7, 0x38, 0xFC, 0xE3, 0x9B, 0x9C, 0x77, 0x73, 0x8E, 0xE7,
-    0x61, 0xD8, 0xFC, 0x1F, 0x0F, 0x83, 0xE1, 0xF0, 0x78, 0x3C, 0x07, 0x03, 0x80, 0x01, 0x80, 0x03, 0xC0, 0x07, 0xE0,
-    0x06, 0x60, 0x00, 0x00, 0xE1, 0xC7, 0xE1, 0xC7, 0x73, 0xC7, 0x73, 0xC6, 0x73, 0xEE, 0x37, 0xEE, 0x3F, 0x6E, 0x3E,
-    0x7C, 0x1E, 0x7C, 0x1E, 0x38, 0x1C, 0x38, 0x06, 0x00, 0x78, 0x07, 0xE0, 0x33, 0x00, 0x00, 0x70, 0x3F, 0xC1, 0xCE,
-    0x1E, 0x38, 0xE1, 0xCE, 0x07, 0x70, 0x3F, 0x00, 0xF8, 0x07, 0x80, 0x1C, 0x00, 0xE0, 0x07, 0x00, 0x38, 0x01, 0xC0,
-    0x0E, 0x00, 0x0E, 0x03, 0xC0, 0x7C, 0x1D, 0xC0, 0x01, 0xC3, 0xB8, 0x73, 0x8E, 0x71, 0xCE, 0x70, 0xEE, 0x1D, 0xC1,
-    0xF0, 0x3E, 0x07, 0xC0, 0x70, 0x0E, 0x17, 0x83, 0xF0, 0x7C, 0x00, 0x1D, 0xC0, 0xEE, 0x00, 0x01, 0xC0, 0xFF, 0x07,
-    0x38, 0x78, 0xE3, 0x87, 0x38, 0x1D, 0xC0, 0xFC, 0x03, 0xE0, 0x1E, 0x00, 0x70, 0x03, 0x80, 0x1C, 0x00, 0xE0, 0x07,
-    0x00, 0x38, 0x00, 0x03, 0x80, 0x78, 0x07, 0x00, 0x60, 0x00, 0x07, 0xFE, 0x7F, 0xE0, 0x0E, 0x01, 0xC0, 0x3C, 0x07,
-    0x80, 0x70, 0x0E, 0x01, 0xE0, 0x1C, 0x03, 0x80, 0x70, 0x07, 0x00, 0xFF, 0xFF, 0xFF, 0x06, 0x03, 0xC1, 0xE0, 0x70,
-    0x00, 0x1F, 0xE7, 0xF8, 0x1E, 0x0F, 0x03, 0x81, 0xC0, 0xF0, 0x78, 0x1C, 0x0F, 0xFF, 0xFF, 0x07, 0x00, 0xF0, 0x07,
-    0x00, 0x00, 0x7F, 0xE7, 0xFE, 0x00, 0xE0, 0x1C, 0x03, 0xC0, 0x78, 0x07, 0x00, 0xE0, 0x1E, 0x01, 0xC0, 0x38, 0x07,
-    0x00, 0x70, 0x0F, 0xFF, 0xFF, 0xF0, 0x1C, 0x07, 0x81, 0xC0, 0x00, 0x00, 0x1F, 0xE7, 0xF8, 0x1E, 0x0F, 0x03, 0x81,
-    0xC0, 0xF0, 0x78, 0x1C, 0x0F, 0xFF, 0xFF, 0x19, 0x81, 0xF8, 0x0F, 0x00, 0x60, 0x00, 0x07, 0xFE, 0x7F, 0xE0, 0x0E,
-    0x01, 0xC0, 0x3C, 0x07, 0x80, 0x70, 0x0E, 0x01, 0xE0, 0x1C, 0x03, 0x80, 0x70, 0x07, 0x00, 0xFF, 0xFF, 0xFF, 0x33,
-    0x0F, 0xC1, 0xE0, 0x30, 0x00, 0x1F, 0xE7, 0xF8, 0x1E, 0x0F, 0x03, 0x81, 0xC0, 0xF0, 0x78, 0x1C, 0x0F, 0xFF, 0xFF,
-    0x3F, 0x7E, 0xF8, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0x7B, 0xFF, 0xC0,
-    0x7F, 0xF7, 0xFF, 0x7F, 0xFF, 0xFD, 0xFF, 0xFF, 0xF0, 0x7F, 0xFF, 0xFD, 0xFF, 0xFF, 0xF0, 0x76, 0xEE, 0xE0, 0x77,
-    0x76, 0xE0, 0x77, 0x76, 0xE0, 0x76, 0x6E, 0xEE, 0xEE, 0xEE, 0x77, 0x77, 0x77, 0x6E, 0xEE, 0x77, 0x77, 0x77, 0x6E,
-    0xEE, 0x0C, 0x03, 0x00, 0xC0, 0x30, 0x0C, 0x3F, 0xFF, 0xFC, 0x30, 0x0C, 0x03, 0x00, 0xC0, 0x30, 0x0C, 0x03, 0x00,
-    0xC0, 0x30, 0x0C, 0x03, 0x00, 0x0C, 0x03, 0x00, 0xC0, 0x30, 0x0C, 0x3F, 0xFF, 0xFC, 0x30, 0x0C, 0x03, 0x0F, 0xFF,
-    0xFF, 0x0C, 0x03, 0x00, 0xC0, 0x30, 0x0C, 0x03, 0x00, 0xFB, 0xFF, 0xFF, 0xF8, 0xE1, 0xC3, 0xF0, 0xE1, 0xF8, 0x70,
-    0xE0, 0x7C, 0x38, 0x00, 0xEE, 0x38, 0x00, 0xC6, 0x70, 0x00, 0xC6, 0x70, 0x00, 0xC6, 0xE0, 0x00, 0xEE, 0xE0, 0x00,
-    0x7D, 0xC0, 0x00, 0x01, 0x80, 0x00, 0x03, 0xBE, 0x3E, 0x07, 0x7F, 0x7F, 0x07, 0x63, 0x67, 0x0E, 0x63, 0x63, 0x0E,
-    0x63, 0x67, 0x1C, 0x77, 0x77, 0x1C, 0x3E, 0x3E, 0x1C, 0xE3, 0x9C, 0xF1, 0xC3, 0x8E, 0x1C, 0x61, 0xC7, 0x8E, 0x1C,
-    0xE7, 0x9C, 0x60, 0x00, 0xE0, 0x38, 0x07, 0x01, 0xC0, 0x38, 0x0E, 0x01, 0x80, 0x70, 0x0C, 0x03, 0x80, 0xE0, 0x1C,
-    0x07, 0x00, 0xE0, 0x38, 0x00, 0x07, 0xF0, 0xFE, 0x1F, 0x61, 0xC0, 0xFF, 0xCF, 0xFC, 0x38, 0x0F, 0xF8, 0xFF, 0x83,
-    0x80, 0x1C, 0x01, 0xF7, 0x0F, 0xF0, 0x7F, 0xFF, 0xEF, 0xFE, 0x06, 0x00, 0x60, 0x07, 0xC0, 0x7C, 0x3F, 0x83, 0xE0,
-    0x3F, 0xC0, 0x7C, 0x3F, 0x83, 0xE0, 0x3E, 0x00, 0x60, 0x06, 0x00, 0x3F, 0x83, 0xFC, 0x3B, 0xC0, 0x0E, 0x00, 0xCF,
-    0xFE, 0x0F, 0x81, 0xF0, 0xFF, 0xE7, 0x00, 0x70, 0x07, 0x00, 0x3D, 0xC3, 0xFE, 0x1F, 0xE0, 0xFF, 0xFF, 0xFC, 0x3C,
-    0x01, 0xCF, 0xFD, 0xFF, 0x80, 0xE0, 0xF8, 0xFF, 0x1F, 0x83, 0xC0, 0x3C, 0x01, 0xC0, 0x1C, 0x01, 0xC0, 0x3F, 0x83,
-    0xFC, 0x33, 0xE0, 0x0E, 0x00, 0xE1, 0xFE, 0x3F, 0xF7, 0xDF, 0x70, 0x77, 0x07, 0xE0, 0xEE, 0x0E, 0x70, 0xE7, 0xBC,
-    0x7F, 0xC3, 0xF8, 0x07, 0x00, 0x1E, 0x00, 0xF8, 0x03, 0xF0, 0x1D, 0xC0, 0x73, 0x81, 0x8E, 0x0E, 0x38, 0x38, 0x70,
-    0xC1, 0xC7, 0x03, 0x1C, 0x0E, 0xE0, 0x3B, 0xFF, 0xEF, 0xFF, 0xC0, 0xFF, 0xFF, 0xFF, 0xE0, 0x7E, 0x07, 0xE0, 0x7E,
-    0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x7E, 0x07, 0xE0, 0x70, 0xFF,
-    0xFF, 0xFD, 0xC0, 0x3C, 0x03, 0x80, 0x38, 0x07, 0x80, 0x70, 0x07, 0x01, 0xC0, 0x70, 0x1E, 0x03, 0x80, 0xE0, 0x3C,
-    0x07, 0xFF, 0xFF, 0xE0, 0xFF, 0xFF, 0xF0, 0x00, 0xE0, 0x38, 0x07, 0x01, 0xC0, 0x38, 0x0E, 0x01, 0x80, 0x70, 0x0C,
-    0x03, 0x80, 0xE0, 0x1C, 0x07, 0x00, 0xE0, 0x38, 0x00, 0xFF, 0x80, 0x00, 0x30, 0x03, 0x80, 0x1C, 0x00, 0xE0, 0x06,
-    0x00, 0x70, 0x03, 0x80, 0x18, 0xF1, 0xC7, 0xCE, 0x3E, 0x60, 0x3B, 0x01, 0xF8, 0x07, 0xC0, 0x3C, 0x00, 0xE0, 0x07,
-    0x00, 0x7D, 0xEF, 0xFF, 0xE7, 0x3E, 0x73, 0xFF, 0xF7, 0xDE, 0x0F, 0x1F, 0x1E, 0x1C, 0x38, 0x38, 0x38, 0x38, 0x38,
-    0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x78, 0xF8, 0xF0, 0x3C, 0x6F, 0xFD, 0xFF, 0xB1, 0xE3, 0xC6, 0xFF,
-    0xDF, 0xFB, 0x1E, 0x03, 0x80, 0xE0, 0x73, 0xFF, 0xFF, 0xC3, 0x80, 0xC0, 0x70, 0xFF, 0xFF, 0xF3, 0x81, 0xC0, 0x70,
-    0x00, 0x01, 0xC3, 0xF7, 0xFB, 0xF0, 0xF0, 0x3F, 0x07, 0xF8, 0x3F, 0x03, 0xC0, 0x0F, 0xFF, 0xFF, 0xE0, 0x3F, 0x07,
-    0xF8, 0x3F, 0x03, 0xC7, 0xF7, 0xFB, 0xF0, 0xE0, 0x00, 0x0F, 0xFF, 0xFF,
-};
-
-static const EpdGlyph ubuntu_10Glyphs[] = {
-    {0, 0, 0, 0, 0, 0, 0},           // 
-    {0, 0, 0, 0, 0, 0, 0},           // 
-    {0, 0, 5, 0, 0, 0, 0},           //
-    {0, 0, 5, 0, 0, 0, 0},           //
-    {0, 0, 0, 0, 0, 0, 0},           // 
-    {0, 0, 5, 0, 0, 0, 0},           //
-    {4, 15, 6, 1, 15, 8, 0},         // !
-    {7, 5, 9, 1, 16, 5, 8},          // "
-    {12, 15, 14, 1, 15, 23, 13},     // #
-    {10, 19, 12, 1, 16, 24, 36},     // $
-    {16, 15, 18, 1, 15, 30, 60},     // %
-    {14, 15, 14, 0, 15, 27, 90},     // &
-    {3, 5, 5, 1, 16, 2, 117},        // '
-    {6, 20, 7, 1, 16, 15, 119},      // (
-    {6, 20, 7, 0, 16, 15, 134},      // )
-    {10, 8, 10, 0, 15, 10, 149},     // *
-    {10, 10, 12, 1, 11, 13, 159},    // +
-    {4, 5, 5, 0, 2, 3, 172},         // ,
-    {6, 2, 6, 0, 7, 2, 175},         // -
-    {3, 3, 5, 1, 3, 2, 177},         // .
-    {10, 20, 8, -1, 16, 25, 179},    // /
-    {10, 15, 12, 1, 15, 19, 204},    // 0
-    {7, 15, 12, 1, 15, 14, 223},     // 1
-    {10, 15, 12, 1, 15, 19, 237},    // 2
-    {10, 15, 12, 1, 15, 19, 256},    // 3
-    {11, 15, 12, 0, 15, 21, 275},    // 4
-    {10, 15, 12, 1, 15, 19, 296},    // 5
-    {10, 15, 12, 1, 15, 19, 315},    // 6
-    {10, 15, 12, 1, 15, 19, 334},    // 7
-    {10, 15, 12, 1, 15, 19, 353},    // 8
-    {10, 15, 12, 1, 15, 19, 372},    // 9
-    {3, 11, 5, 1, 11, 5, 391},       // :
-    {4, 14, 5, 0, 11, 7, 396},       // ;
-    {10, 9, 12, 1, 11, 12, 403},     // <
-    {10, 7, 12, 1, 10, 9, 415},      // =
-    {10, 9, 12, 1, 11, 12, 424},     // >
-    {8, 15, 8, 0, 15, 15, 436},      // ?
-    {18, 20, 20, 1, 16, 45, 451},    // @
-    {14, 15, 14, 0, 15, 27, 496},    // A
-    {12, 15, 14, 1, 15, 23, 523},    // B
-    {12, 15, 13, 1, 15, 23, 546},    // C
-    {13, 15, 15, 1, 15, 25, 569},    // D
-    {11, 15, 12, 1, 15, 21, 594},    // E
-    {10, 15, 11, 1, 15, 19, 615},    // F
-    {12, 15, 14, 1, 15, 23, 634},    // G
-    {12, 15, 15, 1, 15, 23, 657},    // H
-    {3, 15, 6, 1, 15, 6, 680},       // I
-    {9, 15, 11, 0, 15, 17, 686},     // J
-    {13, 15, 13, 1, 15, 25, 703},    // K
-    {10, 15, 11, 1, 15, 19, 728},    // L
-    {16, 15, 18, 1, 15, 30, 747},    // M
-    {13, 15, 15, 1, 15, 25, 777},    // N
-    {15, 15, 16, 1, 15, 29, 802},    // O
-    {12, 15, 13, 1, 15, 23, 831},    // P
-    {15, 19, 16, 1, 15, 36, 854},    // Q
-    {12, 15, 13, 1, 15, 23, 890},    // R
-    {11, 15, 11, 0, 15, 21, 913},    // S
-    {12, 15, 12, 0, 15, 23, 934},    // T
-    {12, 15, 14, 1, 15, 23, 957},    // U
-    {14, 15, 14, 0, 15, 27, 980},    // V
-    {19, 15, 20, 0, 15, 36, 1007},   // W
-    {13, 15, 13, 0, 15, 25, 1043},   // X
-    {13, 15, 13, 0, 15, 25, 1068},   // Y
-    {12, 15, 12, 0, 15, 23, 1093},   // Z
-    {5, 20, 7, 2, 16, 13, 1116},     // [
-    {10, 20, 8, -1, 16, 25, 1129},   // <backslash>
-    {5, 20, 7, 0, 16, 13, 1154},     // ]
-    {11, 8, 12, 0, 15, 11, 1167},    // ^
-    {12, 2, 10, -1, -2, 3, 1178},    // _
-    {5, 4, 8, 1, 16, 3, 1181},       // `
-    {10, 11, 11, 0, 11, 14, 1184},   // a
-    {11, 16, 12, 1, 16, 22, 1198},   // b
-    {9, 11, 10, 1, 11, 13, 1220},    // c
-    {10, 16, 12, 1, 16, 20, 1233},   // d
-    {10, 11, 12, 1, 11, 14, 1253},   // e
-    {8, 16, 8, 1, 16, 16, 1267},     // f
-    {10, 15, 12, 1, 11, 19, 1283},   // g
-    {10, 16, 12, 1, 16, 20, 1302},   // h
-    {3, 16, 5, 1, 16, 6, 1322},      // i
-    {6, 20, 5, -2, 16, 15, 1328},    // j
-    {10, 16, 11, 1, 16, 20, 1343},   // k
-    {5, 16, 6, 1, 16, 10, 1363},     // l
-    {16, 11, 18, 1, 11, 22, 1373},   // m
-    {10, 11, 12, 1, 11, 14, 1395},   // n
-    {11, 11, 12, 1, 11, 16, 1409},   // o
-    {11, 15, 12, 1, 11, 21, 1425},   // p
-    {10, 15, 12, 1, 11, 19, 1446},   // q
-    {7, 11, 8, 1, 11, 10, 1465},     // r
-    {9, 11, 9, 0, 11, 13, 1475},     // s
-    {8, 14, 8, 1, 14, 14, 1488},     // t
-    {10, 11, 12, 1, 11, 14, 1502},   // u
-    {11, 11, 11, 0, 11, 16, 1516},   // v
-    {16, 11, 16, 0, 11, 22, 1532},   // w
-    {11, 11, 11, 0, 11, 16, 1554},   // x
-    {11, 15, 10, 0, 11, 21, 1570},   // y
-    {10, 11, 10, 0, 11, 14, 1591},   // z
-    {7, 20, 7, 0, 16, 18, 1605},     // {
-    {2, 20, 6, 2, 16, 5, 1623},      // |
-    {7, 20, 7, 0, 16, 18, 1628},     // }
-    {11, 4, 12, 0, 8, 6, 1646},      // ~
-    {0, 0, 5, 0, 0, 0, 1652},        //  
-    {4, 15, 6, 1, 11, 8, 1652},      // ¡
-    {10, 17, 12, 1, 14, 22, 1660},   // ¢
-    {10, 15, 12, 1, 15, 19, 1682},   // £
-    {11, 10, 12, 0, 12, 14, 1701},   // ¤
-    {12, 15, 12, 0, 15, 23, 1715},   // ¥
-    {2, 20, 6, 2, 16, 5, 1738},      // ¦
-    {10, 18, 10, 0, 16, 23, 1743},   // §
-    {8, 2, 8, 0, 15, 2, 1766},       // ¨
-    {15, 15, 17, 1, 15, 29, 1768},   // ©
-    {8, 8, 8, 0, 15, 8, 1797},       // ª
-    {10, 9, 10, 0, 10, 12, 1805},    // «
-    {10, 8, 12, 1, 9, 10, 1817},     // ¬
-    {6, 2, 6, 0, 7, 2, 1827},        // ­
-    {15, 15, 17, 1, 15, 29, 1829},   // ®
-    {7, 2, 8, 0, 15, 2, 1858},       // ¯
-    {7, 6, 7, 0, 16, 6, 1860},       // °
-    {10, 13, 12, 1, 13, 17, 1866},   // ±
-    {7, 8, 8, 0, 15, 7, 1883},       // ²
-    {7, 8, 8, 0, 15, 7, 1890},       // ³
-    {5, 4, 8, 2, 16, 3, 1897},       // ´
-    {10, 15, 12, 1, 11, 19, 1900},   // µ
-    {12, 19, 14, 0, 15, 29, 1919},   // ¶
-    {3, 3, 5, 1, 8, 2, 1948},        // ·
-    {5, 4, 8, 1, 0, 3, 1950},        // ¸
-    {4, 8, 8, 1, 15, 4, 1953},       // ¹
-    {9, 8, 9, 0, 15, 9, 1957},       // º
-    {10, 9, 10, 0, 10, 12, 1966},    // »
-    {17, 15, 18, 1, 15, 32, 1978},   // ¼
-    {17, 15, 18, 1, 15, 32, 2010},   // ½
-    {18, 15, 18, 0, 15, 34, 2042},   // ¾
-    {9, 15, 8, 0, 11, 17, 2076},     // ¿
-    {14, 20, 14, 0, 20, 35, 2093},   // À
-    {14, 20, 14, 0, 20, 35, 2128},   // Á
-    {14, 20, 14, 0, 20, 35, 2163},   // Â
-    {14, 19, 14, 0, 19, 34, 2198},   // Ã
-    {14, 18, 14, 0, 18, 32, 2232},   // Ä
-    {14, 18, 14, 0, 18, 32, 2264},   // Å
-    {19, 15, 20, 0, 15, 36, 2296},   // Æ
-    {12, 18, 13, 1, 15, 27, 2332},   // Ç
-    {11, 20, 12, 1, 20, 28, 2359},   // È
-    {11, 20, 12, 1, 20, 28, 2387},   // É
-    {11, 20, 12, 1, 20, 28, 2415},   // Ê
-    {11, 18, 12, 1, 18, 25, 2443},   // Ë
-    {5, 20, 6, 0, 20, 13, 2468},     // Ì
-    {5, 20, 6, 1, 20, 13, 2481},     // Í
-    {7, 20, 6, -1, 20, 18, 2494},    // Î
-    {8, 18, 6, -1, 18, 18, 2512},    // Ï
-    {15, 15, 15, 0, 15, 29, 2530},   // Ð
-    {13, 19, 15, 1, 19, 31, 2559},   // Ñ
-    {15, 20, 16, 1, 20, 38, 2590},   // Ò
-    {15, 20, 16, 1, 20, 38, 2628},   // Ó
-    {15, 20, 16, 1, 20, 38, 2666},   // Ô
-    {15, 19, 16, 1, 19, 36, 2704},   // Õ
-    {15, 18, 16, 1, 18, 34, 2740},   // Ö
-    {10, 9, 12, 1, 11, 12, 2774},    // ×
-    {15, 15, 16, 1, 15, 29, 2786},   // Ø
-    {12, 20, 14, 1, 20, 30, 2815},   // Ù
-    {12, 20, 14, 1, 20, 30, 2845},   // Ú
-    {12, 20, 14, 1, 20, 30, 2875},   // Û
-    {12, 18, 14, 1, 18, 27, 2905},   // Ü
-    {13, 20, 13, 0, 20, 33, 2932},   // Ý
-    {12, 15, 13, 1, 15, 23, 2965},   // Þ
-    {12, 16, 13, 1, 16, 24, 2988},   // ß
-    {10, 16, 11, 0, 16, 20, 3012},   // à
-    {10, 16, 11, 0, 16, 20, 3032},   // á
-    {10, 16, 11, 0, 16, 20, 3052},   // â
-    {10, 16, 11, 0, 16, 20, 3072},   // ã
-    {10, 15, 11, 0, 15, 19, 3092},   // ä
-    {10, 16, 11, 0, 16, 20, 3111},   // å
-    {17, 11, 18, 0, 11, 24, 3131},   // æ
-    {9, 15, 10, 1, 11, 17, 3155},    // ç
-    {10, 16, 12, 1, 16, 20, 3172},   // è
-    {10, 16, 12, 1, 16, 20, 3192},   // é
-    {10, 16, 12, 1, 16, 20, 3212},   // ê
-    {10, 15, 12, 1, 15, 19, 3232},   // ë
-    {5, 16, 5, 0, 16, 10, 3251},     // ì
-    {5, 16, 5, 1, 16, 10, 3261},     // í
-    {7, 16, 5, -1, 16, 14, 3271},    // î
-    {7, 15, 5, -1, 15, 14, 3285},    // ï
-    {11, 16, 12, 1, 16, 22, 3299},   // ð
-    {10, 16, 12, 1, 16, 20, 3321},   // ñ
-    {11, 16, 12, 1, 16, 22, 3341},   // ò
-    {11, 16, 12, 1, 16, 22, 3363},   // ó
-    {11, 16, 12, 1, 16, 22, 3385},   // ô
-    {11, 16, 12, 1, 16, 22, 3407},   // õ
-    {11, 15, 12, 1, 15, 21, 3429},   // ö
-    {10, 12, 12, 1, 12, 15, 3450},   // ÷
-    {11, 11, 12, 1, 11, 16, 3465},   // ø
-    {10, 16, 12, 1, 16, 20, 3481},   // ù
-    {10, 16, 12, 1, 16, 20, 3501},   // ú
-    {10, 16, 12, 1, 16, 20, 3521},   // û
-    {10, 15, 12, 1, 15, 19, 3541},   // ü
-    {11, 20, 10, 0, 16, 28, 3560},   // ý
-    {11, 20, 12, 1, 16, 28, 3588},   // þ
-    {11, 19, 10, 0, 15, 27, 3616},   // ÿ
-    {14, 18, 14, 0, 18, 32, 3643},   // Ā
-    {10, 15, 11, 0, 15, 19, 3675},   // ā
-    {14, 19, 14, 0, 19, 34, 3694},   // Ă
-    {10, 16, 11, 0, 16, 20, 3728},   // ă
-    {14, 19, 14, 0, 15, 34, 3748},   // Ą
-    {10, 14, 11, 0, 11, 18, 3782},   // ą
-    {12, 20, 13, 1, 20, 30, 3800},   // Ć
-    {9, 16, 10, 1, 16, 18, 3830},    // ć
-    {12, 20, 13, 1, 20, 30, 3848},   // Ĉ
-    {9, 16, 10, 1, 16, 18, 3878},    // ĉ
-    {12, 19, 13, 1, 19, 29, 3896},   // Ċ
-    {9, 16, 10, 1, 16, 18, 3925},    // ċ
-    {12, 20, 13, 1, 20, 30, 3943},   // Č
-    {9, 16, 10, 1, 16, 18, 3973},    // č
-    {13, 20, 15, 1, 20, 33, 3991},   // Ď
-    {14, 16, 13, 1, 16, 28, 4024},   // ď
-    {15, 15, 15, 0, 15, 29, 4052},   // Đ
-    {12, 16, 12, 1, 16, 24, 4081},   // đ
-    {11, 18, 12, 1, 18, 25, 4105},   // Ē
-    {10, 15, 12, 1, 15, 19, 4130},   // ē
-    {11, 19, 12, 1, 19, 27, 4149},   // Ĕ
-    {10, 16, 12, 1, 16, 20, 4176},   // ĕ
-    {11, 19, 12, 1, 19, 27, 4196},   // Ė
-    {10, 16, 12, 1, 16, 20, 4223},   // ė
-    {11, 19, 12, 1, 15, 27, 4243},   // Ę
-    {10, 14, 12, 1, 11, 18, 4270},   // ę
-    {11, 20, 12, 1, 20, 28, 4288},   // Ě
-    {10, 17, 12, 1, 17, 22, 4316},   // ě
-    {12, 20, 14, 1, 20, 30, 4338},   // Ĝ
-    {10, 20, 12, 1, 16, 25, 4368},   // ĝ
-    {12, 19, 14, 1, 19, 29, 4393},   // Ğ
-    {10, 20, 12, 1, 16, 25, 4422},   // ğ
-    {12, 19, 14, 1, 19, 29, 4447},   // Ġ
-    {10, 20, 12, 1, 16, 25, 4476},   // ġ
-    {12, 19, 14, 1, 15, 29, 4501},   // Ģ
-    {10, 21, 12, 1, 17, 27, 4530},   // ģ
-    {12, 20, 15, 1, 20, 30, 4557},   // Ĥ
-    {10, 20, 12, 1, 20, 25, 4587},   // ĥ
-    {15, 15, 15, 0, 15, 29, 4612},   // Ħ
-    {11, 16, 12, 0, 16, 22, 4641},   // ħ
-    {8, 19, 6, -1, 19, 19, 4663},    // Ĩ
-    {8, 16, 5, -1, 16, 16, 4682},    // ĩ
-    {7, 18, 6, -1, 18, 16, 4698},    // Ī
-    {7, 15, 5, -1, 15, 14, 4714},    // ī
-    {6, 19, 6, 0, 19, 15, 4728},     // Ĭ
-    {7, 16, 5, -1, 16, 14, 4743},    // ĭ
-    {5, 19, 6, 0, 15, 12, 4757},     // Į
-    {4, 20, 5, 0, 16, 10, 4769},     // į
-    {4, 19, 6, 1, 19, 10, 4779},     // İ
-    {3, 11, 5, 1, 11, 5, 4789},      // ı
-    {14, 15, 16, 1, 15, 27, 4794},   // IJ
-    {9, 20, 11, 1, 16, 23, 4821},    // ij
-    {11, 20, 11, 0, 20, 28, 4844},   // Ĵ
-    {8, 20, 5, -2, 16, 20, 4872},    // ĵ
-    {13, 19, 13, 1, 15, 31, 4892},   // Ķ
-    {10, 20, 11, 1, 16, 25, 4923},   // ķ
-    {10, 11, 11, 1, 11, 14, 4948},   // ĸ
-    {10, 20, 11, 1, 20, 25, 4962},   // Ĺ
-    {5, 20, 6, 1, 20, 13, 4987},     // ĺ
-    {10, 19, 11, 1, 15, 24, 5000},   // Ļ
-    {6, 20, 6, 0, 16, 15, 5024},     // ļ
-    {10, 15, 11, 1, 15, 19, 5039},   // Ľ
-    {6, 16, 6, 1, 16, 12, 5058},     // ľ
-    {10, 15, 11, 1, 15, 19, 5070},   // Ŀ
-    {7, 16, 8, 1, 16, 14, 5089},     // ŀ
-    {12, 15, 11, -1, 15, 23, 5103},  // Ł
-    {7, 16, 6, 0, 16, 14, 5126},     // ł
-    {13, 20, 15, 1, 20, 33, 5140},   // Ń
-    {10, 16, 12, 1, 16, 20, 5173},   // ń
-    {13, 19, 15, 1, 15, 31, 5193},   // Ņ
-    {10, 15, 12, 1, 11, 19, 5224},   // ņ
-    {13, 20, 15, 1, 20, 33, 5243},   // Ň
-    {10, 16, 12, 1, 16, 20, 5276},   // ň
-    {11, 16, 12, 0, 16, 22, 5296},   // ʼn
-    {13, 19, 15, 1, 15, 31, 5318},   // Ŋ
-    {10, 15, 12, 1, 11, 19, 5349},   // ŋ
-    {15, 18, 16, 1, 18, 34, 5368},   // Ō
-    {11, 15, 12, 1, 15, 21, 5402},   // ō
-    {15, 19, 16, 1, 19, 36, 5423},   // Ŏ
-    {11, 16, 12, 1, 16, 22, 5459},   // ŏ
-    {15, 20, 16, 1, 20, 38, 5481},   // Ő
-    {11, 16, 12, 1, 16, 22, 5519},   // ő
-    {20, 15, 21, 1, 15, 38, 5541},   // Œ
-    {18, 11, 20, 1, 11, 25, 5579},   // œ
-    {12, 20, 13, 1, 20, 30, 5604},   // Ŕ
-    {7, 16, 8, 1, 16, 14, 5634},     // ŕ
-    {12, 19, 13, 1, 15, 29, 5648},   // Ŗ
-    {8, 15, 8, 0, 11, 15, 5677},     // ŗ
-    {12, 20, 13, 1, 20, 30, 5692},   // Ř
-    {7, 16, 8, 1, 16, 14, 5722},     // ř
-    {11, 20, 11, 0, 20, 28, 5736},   // Ś
-    {9, 16, 9, 0, 16, 18, 5764},     // ś
-    {11, 20, 11, 0, 20, 28, 5782},   // Ŝ
-    {9, 16, 9, 0, 16, 18, 5810},     // ŝ
-    {11, 18, 11, 0, 15, 25, 5828},   // Ş
-    {9, 14, 9, 0, 11, 16, 5853},     // ş
-    {11, 20, 11, 0, 20, 28, 5869},   // Š
-    {9, 16, 9, 0, 16, 18, 5897},     // š
-    {12, 18, 12, 0, 15, 27, 5915},   // Ţ
-    {8, 17, 8, 1, 14, 17, 5942},     // ţ
-    {12, 20, 12, 0, 20, 30, 5959},   // Ť
-    {8, 16, 8, 1, 16, 16, 5989},     // ť
-    {12, 15, 12, 0, 15, 23, 6005},   // Ŧ
-    {8, 14, 8, 1, 14, 14, 6028},     // ŧ
-    {12, 19, 14, 1, 19, 29, 6042},   // Ũ
-    {10, 16, 12, 1, 16, 20, 6071},   // ũ
-    {12, 18, 14, 1, 18, 27, 6091},   // Ū
-    {10, 15, 12, 1, 15, 19, 6118},   // ū
-    {12, 19, 14, 1, 19, 29, 6137},   // Ŭ
-    {10, 16, 12, 1, 16, 20, 6166},   // ŭ
-    {12, 19, 14, 1, 19, 29, 6186},   // Ů
-    {10, 16, 12, 1, 16, 20, 6215},   // ů
-    {12, 20, 14, 1, 20, 30, 6235},   // Ű
-    {10, 16, 12, 1, 16, 20, 6265},   // ű
-    {12, 18, 14, 1, 15, 27, 6285},   // Ų
-    {10, 14, 12, 1, 11, 18, 6312},   // ų
-    {19, 20, 20, 0, 20, 48, 6330},   // Ŵ
-    {16, 16, 16, 0, 16, 32, 6378},   // ŵ
-    {13, 20, 13, 0, 20, 33, 6410},   // Ŷ
-    {11, 20, 10, 0, 16, 28, 6443},   // ŷ
-    {13, 18, 13, 0, 18, 30, 6471},   // Ÿ
-    {12, 20, 12, 0, 20, 30, 6501},   // Ź
-    {10, 16, 10, 0, 16, 20, 6531},   // ź
-    {12, 19, 12, 0, 19, 29, 6551},   // Ż
-    {10, 16, 10, 0, 16, 20, 6580},   // ż
-    {12, 20, 12, 0, 20, 30, 6600},   // Ž
-    {10, 16, 10, 0, 16, 20, 6630},   // ž
-    {8, 16, 6, 1, 16, 16, 6650},     // ſ
-    {6, 3, 8, 1, 16, 3, 6666},       // ̑
-    {12, 2, 10, -1, 7, 3, 6669},     // –
-    {22, 2, 21, -1, 7, 6, 6672},     // —
-    {22, 2, 21, -1, 7, 6, 6678},     // ―
-    {4, 5, 5, 1, 16, 3, 6684},       // ‘
-    {4, 5, 5, 0, 16, 3, 6687},       // ’
-    {4, 5, 5, 0, 2, 3, 6690},        // ‚
-    {8, 5, 9, 1, 16, 5, 6693},       // “
-    {8, 5, 9, 0, 16, 5, 6698},       // ”
-    {8, 5, 9, 0, 2, 5, 6703},        // „
-    {10, 18, 10, 0, 15, 23, 6708},   // †
-    {10, 18, 10, 0, 15, 23, 6731},   // ‡
-    {6, 5, 8, 1, 10, 4, 6754},       // •
-    {17, 3, 21, 2, 3, 7, 6758},      // …
-    {24, 15, 26, 1, 15, 45, 6765},   // ‰
-    {6, 9, 6, 0, 10, 7, 6810},       // ‹
-    {6, 9, 6, 0, 10, 7, 6817},       // ›
-    {11, 15, 3, -4, 15, 21, 6824},   // ⁄
-    {12, 14, 12, 0, 14, 21, 6845},   // €
-    {12, 15, 12, 0, 15, 23, 6866},   // ₮
-    {12, 15, 12, 0, 15, 23, 6889},   // ₴
-    {11, 15, 12, 1, 15, 21, 6912},   // ₹
-    {12, 16, 12, 0, 16, 24, 6933},   // ∂
-    {14, 15, 14, 0, 15, 27, 6957},   // ∆
-    {12, 17, 15, 1, 15, 26, 6984},   // ∏
-    {11, 17, 11, 0, 15, 24, 7010},   // ∑
-    {10, 2, 12, 1, 7, 3, 7034},      // −
-    {11, 15, 3, -4, 15, 21, 7037},   // ∕
-    {3, 3, 5, 1, 8, 2, 7058},        // ∙
-    {13, 17, 12, 0, 16, 28, 7060},   // √
-    {12, 6, 12, 0, 9, 9, 7088},      // ∞
-    {8, 20, 8, 0, 16, 20, 7097},     // ∫
-    {11, 8, 12, 0, 10, 11, 7117},    // ≈
-    {10, 13, 12, 1, 13, 17, 7128},   // ≠
-    {10, 12, 12, 1, 12, 15, 7145},   // ≤
-    {10, 12, 12, 1, 12, 15, 7160},   // ≥
-};
-
-static const EpdUnicodeInterval ubuntu_10Intervals[] = {
-    {0x0, 0x0, 0x0},         {0x8, 0x9, 0x1},         {0xD, 0xD, 0x3},         {0x1D, 0x1D, 0x4},
-    {0x20, 0x7E, 0x5},       {0xA0, 0xFF, 0x64},      {0x100, 0x17F, 0xC4},    {0x311, 0x311, 0x144},
-    {0x2013, 0x2015, 0x145}, {0x2018, 0x201A, 0x148}, {0x201C, 0x201E, 0x14B}, {0x2020, 0x2022, 0x14E},
-    {0x2026, 0x2026, 0x151}, {0x2030, 0x2030, 0x152}, {0x2039, 0x203A, 0x153}, {0x2044, 0x2044, 0x155},
-    {0x20AC, 0x20AC, 0x156}, {0x20AE, 0x20AE, 0x157}, {0x20B4, 0x20B4, 0x158}, {0x20B9, 0x20B9, 0x159},
-    {0x2202, 0x2202, 0x15A}, {0x2206, 0x2206, 0x15B}, {0x220F, 0x220F, 0x15C}, {0x2211, 0x2212, 0x15D},
-    {0x2215, 0x2215, 0x15F}, {0x2219, 0x221A, 0x160}, {0x221E, 0x221E, 0x162}, {0x222B, 0x222B, 0x163},
-    {0x2248, 0x2248, 0x164}, {0x2260, 0x2260, 0x165}, {0x2264, 0x2265, 0x166},
-};
-
-static const EpdFontData ubuntu_10 = {
-    ubuntu_10Bitmaps, ubuntu_10Glyphs, ubuntu_10Intervals, 31, 24, 20, -4,
-};

lib/EpdFont/builtinFonts/ubuntu_bold_10.h

@@ -1,810 +0,0 @@
-/**
- * generated by fontconvert.py
- * name: ubuntu_bold_10
- * size: 10
- */
-#pragma once
-#include "EpdFontData.h"
-
-static const uint8_t ubuntu_bold_10Bitmaps[8017] = {
-    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, 0xFF, 0xF0, 0xFF, 0xFF, 0xFF, 0xEF, 0xEF, 0xE7, 0x1E, 0xF0, 0xF7, 0x87, 0x3C,
-    0x39, 0xCF, 0xFF, 0xFF, 0xFC, 0xF7, 0x87, 0xBC, 0x39, 0xE7, 0xFF, 0xFF, 0xFE, 0xF7, 0x87, 0xBC, 0x39, 0xE1, 0xCE,
-    0x00, 0x0F, 0x01, 0xE0, 0xFF, 0xBF, 0xF7, 0xFC, 0xFB, 0x9E, 0x03, 0xF8, 0x3F, 0xC3, 0xFC, 0x1F, 0x80, 0xF7, 0xBE,
-    0xFF, 0xFF, 0xFB, 0xFE, 0x0F, 0x01, 0xE0, 0x3C, 0x00, 0x3E, 0x1E, 0x0F, 0xE3, 0xC1, 0xDC, 0xF0, 0x7B, 0xDE, 0x0F,
-    0x7F, 0x80, 0xEE, 0xF0, 0x1F, 0xFC, 0x01, 0xF7, 0xFE, 0x01, 0xFF, 0xC0, 0x3B, 0xFC, 0x0F, 0x73, 0x83, 0xCE, 0x70,
-    0x79, 0xFE, 0x1E, 0x3F, 0x83, 0xC3, 0xF0, 0x1F, 0x80, 0x7F, 0x80, 0xFF, 0x81, 0xEF, 0x03, 0xDE, 0x07, 0xF8, 0x07,
-    0xF0, 0x1F, 0xDE, 0x7F, 0xFC, 0xE7, 0xF3, 0xC7, 0xE7, 0xE7, 0xC7, 0xFF, 0x8F, 0xFF, 0x8F, 0xFF, 0x80, 0xFF, 0xFE,
-    0xEE, 0x1C, 0x3C, 0xF3, 0xE7, 0x8F, 0x3C, 0x78, 0xF1, 0xE3, 0xC7, 0x8F, 0x1E, 0x1E, 0x3C, 0x7C, 0x78, 0x78, 0xE0,
-    0x63, 0xCF, 0x9E, 0x78, 0xF3, 0xCF, 0x3C, 0xF3, 0xCF, 0x3C, 0xF3, 0xDE, 0x7B, 0xEF, 0x18, 0x1E, 0x03, 0x87, 0xF9,
-    0xFF, 0x7F, 0xCF, 0xE7, 0xF8, 0xEC, 0x1E, 0x07, 0x81, 0xE0, 0x78, 0xFF, 0xFF, 0xFF, 0xFC, 0x78, 0x1E, 0x07, 0x81,
-    0xE0, 0x7B, 0xDF, 0xEF, 0x78, 0xFF, 0xFF, 0xF8, 0x77, 0xFE, 0xE0, 0x01, 0xE0, 0x3C, 0x0F, 0x01, 0xE0, 0x7C, 0x0F,
-    0x01, 0xE0, 0x7C, 0x0F, 0x01, 0xE0, 0x78, 0x0F, 0x01, 0xE0, 0x78, 0x0F, 0x01, 0xE0, 0x78, 0x0F, 0x01, 0xE0, 0x78,
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-    0x38, 0x0E, 0x03, 0x80, 0x1E, 0x07, 0x81, 0xE0, 0x78, 0xFF, 0xFF, 0xFF, 0xFC, 0x78, 0x1E, 0x07, 0x8F, 0xFF, 0xFF,
-    0xFF, 0xC7, 0x80, 0xE0, 0x38, 0x0E, 0x03, 0x80, 0x7C, 0xFF, 0xFF, 0xF7, 0xEF, 0x80, 0xF0, 0xE1, 0xFF, 0x3E, 0x7F,
-    0xE7, 0xCF, 0xF8, 0x70, 0xF0, 0x3E, 0x1E, 0x00, 0x0F, 0xE3, 0xC0, 0x01, 0xDC, 0xF0, 0x00, 0x7B, 0xDE, 0x00, 0x0F,
-    0x7F, 0x80, 0x00, 0xEE, 0xF0, 0x00, 0x1F, 0xFC, 0x00, 0x01, 0xF7, 0xFE, 0x7E, 0x01, 0xFF, 0xCF, 0xE0, 0x3B, 0xFF,
-    0xFC, 0x0F, 0x73, 0xF3, 0x83, 0xCE, 0x7E, 0x70, 0x79, 0xFF, 0xFE, 0x1E, 0x3F, 0x9F, 0xC3, 0xC3, 0xF3, 0xF0, 0x00,
-    0x38, 0xF3, 0xE7, 0x9F, 0x1E, 0x3E, 0x3C, 0x38, 0x00, 0x00, 0xE3, 0xE3, 0xE3, 0xC7, 0xCF, 0x3E, 0xF8, 0xE0, 0x00,
-    0x01, 0xE0, 0x3C, 0x0F, 0x01, 0xE0, 0x78, 0x0F, 0x03, 0xC0, 0x78, 0x1E, 0x03, 0xC0, 0xF0, 0x1E, 0x07, 0x80, 0xF0,
-    0x3C, 0x00, 0x07, 0xF0, 0xFF, 0x1F, 0xF1, 0xF6, 0x3C, 0x07, 0xFE, 0x7F, 0xC3, 0xC0, 0x7F, 0xC7, 0xFC, 0x3C, 0x03,
-    0xF7, 0x1F, 0xF0, 0xFF, 0x07, 0xF0, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0xF0, 0x0F, 0xC0, 0xFC, 0x1F, 0xC3, 0xF0, 0x3F,
-    0xC3, 0xFC, 0x1F, 0xC3, 0xF0, 0x3F, 0x03, 0xF0, 0x0F, 0x00, 0x3F, 0x87, 0xFC, 0x3F, 0xE3, 0xBE, 0xFF, 0xFF, 0xFF,
-    0x1F, 0x83, 0xF0, 0xFF, 0xFF, 0xFF, 0x78, 0x07, 0xDE, 0x7F, 0xE3, 0xFE, 0x1F, 0xE0, 0xFF, 0xFF, 0xFF, 0xC1, 0xF0,
-    0x07, 0xCF, 0xFF, 0x7F, 0xF8, 0x0F, 0x01, 0xF8, 0xFF, 0x87, 0xF8, 0x1F, 0x00, 0x7C, 0x01, 0xF0, 0x07, 0xC0, 0x1F,
-    0x00, 0x3F, 0x83, 0xFC, 0x3F, 0xE3, 0xBF, 0x00, 0xF1, 0xFF, 0x3F, 0xF7, 0xFF, 0x7D, 0xFF, 0x0F, 0xF0, 0xFF, 0xBE,
-    0x7F, 0xE7, 0xFC, 0x3F, 0x80, 0x07, 0x80, 0x0F, 0x80, 0x3F, 0x00, 0x7F, 0x01, 0xFE, 0x03, 0xDC, 0x07, 0xBC, 0x1E,
-    0x78, 0x3C, 0x78, 0x78, 0xF1, 0xE1, 0xE3, 0xC1, 0xE7, 0xFF, 0xDF, 0xFF, 0xBF, 0xFF, 0x80, 0xFF, 0xFF, 0xFF, 0xFF,
-    0xFF, 0xE0, 0xFF, 0x07, 0xF8, 0x3F, 0xC1, 0xFE, 0x0F, 0xF0, 0x7F, 0x83, 0xFC, 0x1F, 0xE0, 0xFF, 0x07, 0xF8, 0x3F,
-    0xC1, 0xFE, 0x0F, 0xF0, 0x78, 0xFF, 0xFF, 0xFF, 0xFF, 0xBC, 0x07, 0xC0, 0x7C, 0x07, 0x80, 0xF8, 0x0F, 0x83, 0xE0,
-    0x78, 0x1E, 0x07, 0xC0, 0xF0, 0x3F, 0xFF, 0xFF, 0xFF, 0xE0, 0xFF, 0xFF, 0xFF, 0xFC, 0x01, 0xE0, 0x3C, 0x0F, 0x01,
-    0xE0, 0x78, 0x0F, 0x03, 0xC0, 0x78, 0x1E, 0x03, 0xC0, 0xF0, 0x1E, 0x07, 0x80, 0xF0, 0x3C, 0x00, 0x77, 0xFE, 0xE0,
-    0x00, 0x3C, 0x01, 0xE0, 0x07, 0x80, 0x1E, 0x00, 0x70, 0x03, 0xC0, 0x0F, 0x0F, 0x38, 0xFD, 0xE3, 0xF7, 0x87, 0xFC,
-    0x07, 0xF0, 0x0F, 0xC0, 0x3E, 0x00, 0x78, 0x00, 0x7D, 0xF3, 0xFF, 0xFF, 0xFF, 0xEE, 0x7F, 0xFF, 0xBF, 0xFD, 0xF7,
-    0xC0, 0x00, 0x07, 0xC7, 0xE7, 0xF3, 0xE1, 0xE0, 0xF0, 0x78, 0x3C, 0x1E, 0x0F, 0x07, 0x83, 0xC1, 0xE0, 0xF0, 0x78,
-    0x7C, 0x7E, 0x3F, 0x1F, 0x00, 0x00, 0x3C, 0x77, 0xFF, 0x7F, 0xEF, 0xFE, 0xE3, 0xC0, 0x00, 0x3C, 0x77, 0xFF, 0x7F,
-    0xEF, 0xFE, 0xE3, 0xC0, 0x03, 0x80, 0xE0, 0x7B, 0xFF, 0xFF, 0xFF, 0xF0, 0xE0, 0x70, 0xFF, 0xFF, 0xFF, 0xFD, 0xC0,
-    0x70, 0x1C, 0x00, 0x07, 0xDF, 0xFF, 0xFF, 0xFE, 0xF8, 0x3F, 0xEF, 0xFD, 0xFF, 0x07, 0xC0, 0x0F, 0xFF, 0xFF, 0xFF,
-    0xC0, 0xF8, 0x3F, 0xCF, 0xFD, 0xFF, 0x0F, 0xDF, 0xFF, 0xFF, 0xFE, 0xF8, 0x00, 0x0F, 0xFF, 0xFF, 0xFF, 0xC0,
-};
-
-static const EpdGlyph ubuntu_bold_10Glyphs[] = {
-    {0, 0, 0, 0, 0, 0, 0},           // 
-    {0, 0, 0, 0, 0, 0, 0},           // 
-    {0, 0, 5, 0, 0, 0, 0},           //
-    {0, 0, 5, 0, 0, 0, 0},           //
-    {0, 0, 0, 0, 0, 0, 0},           // 
-    {0, 0, 5, 0, 0, 0, 0},           //
-    {4, 15, 6, 1, 15, 8, 0},         // !
-    {8, 6, 10, 1, 16, 6, 8},         // "
-    {13, 15, 15, 1, 15, 25, 14},     // #
-    {11, 19, 12, 0, 16, 27, 39},     // $
-    {19, 15, 19, 0, 15, 36, 66},     // %
-    {15, 15, 15, 0, 15, 29, 102},    // &
-    {4, 6, 5, 1, 16, 3, 131},        // '
-    {7, 20, 7, 1, 16, 18, 134},      // (
-    {6, 20, 7, 0, 16, 15, 152},      // )
-    {10, 8, 11, 0, 15, 10, 167},     // *
-    {10, 11, 12, 1, 12, 14, 177},    // +
-    {5, 6, 5, 0, 3, 4, 191},         // ,
-    {7, 3, 7, 0, 8, 3, 195},         // -
-    {5, 4, 5, 0, 4, 3, 198},         // .
-    {11, 20, 9, -1, 16, 28, 201},    // /
-    {12, 15, 12, 0, 15, 23, 229},    // 0
-    {8, 15, 12, 1, 15, 15, 252},     // 1
-    {11, 15, 12, 0, 15, 21, 267},    // 2
-    {11, 15, 12, 0, 15, 21, 288},    // 3
-    {12, 15, 12, 0, 15, 23, 309},    // 4
-    {11, 15, 12, 0, 15, 21, 332},    // 5
-    {12, 15, 12, 0, 15, 23, 353},    // 6
-    {12, 15, 12, 0, 15, 23, 376},    // 7
-    {12, 15, 12, 0, 15, 23, 399},    // 8
-    {12, 15, 12, 0, 15, 23, 422},    // 9
-    {5, 11, 5, 0, 11, 7, 445},       // :
-    {5, 14, 5, 0, 11, 9, 452},       // ;
-    {10, 11, 12, 1, 12, 14, 461},    // <
-    {10, 8, 12, 1, 10, 10, 475},     // =
-    {10, 11, 12, 1, 12, 14, 485},    // >
-    {10, 16, 10, 0, 16, 20, 499},    // ?
-    {19, 18, 20, 1, 15, 43, 519},    // @
-    {15, 15, 15, 0, 15, 29, 562},    // A
-    {13, 15, 14, 1, 15, 25, 591},    // B
-    {13, 15, 14, 1, 15, 25, 616},    // C
-    {14, 15, 15, 1, 15, 27, 641},    // D
-    {11, 15, 13, 1, 15, 21, 668},    // E
-    {11, 15, 12, 1, 15, 21, 689},    // F
-    {13, 15, 15, 1, 15, 25, 710},    // G
-    {13, 15, 15, 1, 15, 25, 735},    // H
-    {4, 15, 7, 1, 15, 8, 760},       // I
-    {10, 15, 11, 0, 15, 19, 768},    // J
-    {14, 15, 14, 1, 15, 27, 787},    // K
-    {11, 15, 12, 1, 15, 21, 814},    // L
-    {17, 15, 19, 1, 15, 32, 835},    // M
-    {14, 15, 16, 1, 15, 27, 867},    // N
-    {15, 15, 17, 1, 15, 29, 894},    // O
-    {12, 15, 14, 1, 15, 23, 923},    // P
-    {15, 18, 17, 1, 15, 34, 946},    // Q
-    {13, 15, 14, 1, 15, 25, 980},    // R
-    {12, 15, 12, 0, 15, 23, 1005},   // S
-    {13, 15, 13, 0, 15, 25, 1028},   // T
-    {13, 15, 15, 1, 15, 25, 1053},   // U
-    {15, 15, 15, 0, 15, 29, 1078},   // V
-    {20, 15, 20, 0, 15, 38, 1107},   // W
-    {14, 15, 14, 0, 15, 27, 1145},   // X
-    {14, 15, 14, 0, 15, 27, 1172},   // Y
-    {13, 15, 13, 0, 15, 25, 1199},   // Z
-    {7, 20, 8, 1, 16, 18, 1224},     // [
-    {11, 20, 9, -1, 16, 28, 1242},   // <backslash>
-    {6, 20, 8, 0, 16, 15, 1270},     // ]
-    {12, 9, 12, 0, 15, 14, 1285},    // ^
-    {11, 3, 11, 0, -1, 5, 1299},     // _
-    {6, 5, 6, 0, 17, 4, 1304},       // `
-    {11, 11, 12, 0, 11, 16, 1308},   // a
-    {11, 16, 13, 1, 16, 22, 1324},   // b
-    {10, 11, 11, 0, 11, 14, 1346},   // c
-    {12, 16, 13, 0, 16, 24, 1360},   // d
-    {12, 11, 12, 0, 11, 17, 1384},   // e
-    {9, 16, 9, 1, 16, 18, 1401},     // f
-    {11, 15, 12, 0, 11, 21, 1419},   // g
-    {10, 16, 12, 1, 16, 20, 1440},   // h
-    {4, 16, 6, 1, 16, 8, 1460},      // i
-    {7, 20, 6, -2, 16, 18, 1468},    // j
-    {11, 16, 12, 1, 16, 22, 1486},   // k
-    {6, 16, 7, 1, 16, 12, 1508},     // l
-    {16, 11, 18, 1, 11, 22, 1520},   // m
-    {10, 11, 12, 1, 11, 14, 1542},   // n
-    {12, 11, 13, 0, 11, 17, 1556},   // o
-    {11, 15, 13, 1, 11, 21, 1573},   // p
-    {12, 15, 13, 0, 11, 23, 1594},   // q
-    {8, 11, 9, 1, 11, 11, 1617},     // r
-    {10, 11, 10, 0, 11, 14, 1628},   // s
-    {8, 14, 9, 1, 14, 14, 1642},     // t
-    {10, 11, 12, 1, 11, 14, 1656},   // u
-    {12, 11, 12, 0, 11, 17, 1670},   // v
-    {17, 11, 16, 0, 11, 24, 1687},   // w
-    {12, 11, 12, 0, 11, 17, 1711},   // x
-    {12, 15, 11, 0, 11, 23, 1728},   // y
-    {10, 11, 11, 0, 11, 14, 1751},   // z
-    {8, 20, 8, 0, 16, 20, 1765},     // {
-    {4, 20, 7, 1, 16, 10, 1785},     // |
-    {8, 20, 8, 0, 16, 20, 1795},     // }
-    {12, 5, 12, 0, 9, 8, 1815},      // ~
-    {0, 0, 5, 0, 0, 0, 1823},        //  
-    {4, 15, 6, 1, 11, 8, 1823},      // ¡
-    {10, 16, 12, 0, 14, 20, 1831},   // ¢
-    {11, 15, 12, 0, 15, 21, 1851},   // £
-    {12, 11, 12, 0, 13, 17, 1872},   // ¤
-    {14, 15, 12, -1, 15, 27, 1889},  // ¥
-    {4, 20, 6, 1, 16, 10, 1916},     // ¦
-    {11, 19, 11, 0, 15, 27, 1926},   // §
-    {9, 3, 11, 1, 16, 4, 1953},      // ¨
-    {15, 15, 17, 1, 15, 29, 1957},   // ©
-    {8, 8, 8, 0, 15, 8, 1986},       // ª
-    {12, 11, 13, 0, 11, 17, 1994},   // «
-    {10, 8, 12, 1, 9, 10, 2011},     // ¬
-    {7, 3, 7, 0, 8, 3, 2021},        // ­
-    {15, 15, 17, 1, 15, 29, 2024},   // ®
-    {8, 2, 8, 0, 15, 2, 2053},       // ¯
-    {8, 6, 8, 0, 16, 6, 2055},       // °
-    {10, 15, 12, 1, 15, 19, 2061},   // ±
-    {7, 9, 8, 0, 15, 8, 2080},       // ²
-    {7, 9, 8, 0, 15, 8, 2088},       // ³
-    {6, 5, 6, 0, 17, 4, 2096},       // ´
-    {10, 15, 12, 1, 11, 19, 2100},   // µ
-    {14, 19, 15, 0, 15, 34, 2119},   // ¶
-    {5, 4, 5, 0, 9, 3, 2153},        // ·
-    {6, 6, 7, 0, 1, 5, 2156},        // ¸
-    {6, 9, 8, 0, 15, 7, 2161},       // ¹
-    {9, 8, 10, 0, 15, 9, 2168},      // º
-    {13, 11, 13, 0, 11, 18, 2177},   // »
-    {19, 15, 18, 0, 15, 36, 2195},   // ¼
-    {18, 15, 18, 0, 15, 34, 2231},   // ½
-    {19, 15, 18, 0, 15, 36, 2265},   // ¾
-    {10, 15, 10, 0, 11, 19, 2301},   // ¿
-    {15, 21, 15, 0, 21, 40, 2320},   // À
-    {15, 21, 15, 0, 21, 40, 2360},   // Á
-    {15, 21, 15, 0, 21, 40, 2400},   // Â
-    {15, 19, 15, 0, 19, 36, 2440},   // Ã
-    {15, 19, 15, 0, 19, 36, 2476},   // Ä
-    {15, 19, 15, 0, 19, 36, 2512},   // Å
-    {21, 15, 21, 0, 15, 40, 2548},   // Æ
-    {13, 20, 14, 1, 15, 33, 2588},   // Ç
-    {11, 21, 13, 1, 21, 29, 2621},   // È
-    {11, 21, 13, 1, 21, 29, 2650},   // É
-    {11, 21, 13, 1, 21, 29, 2679},   // Ê
-    {11, 19, 13, 1, 19, 27, 2708},   // Ë
-    {6, 21, 7, 0, 21, 16, 2735},     // Ì
-    {5, 21, 7, 1, 21, 14, 2751},     // Í
-    {7, 21, 7, 0, 21, 19, 2765},     // Î
-    {9, 19, 7, -1, 19, 22, 2784},    // Ï
-    {15, 15, 16, 0, 15, 29, 2806},   // Ð
-    {14, 19, 16, 1, 19, 34, 2835},   // Ñ
-    {15, 21, 17, 1, 21, 40, 2869},   // Ò
-    {15, 21, 17, 1, 21, 40, 2909},   // Ó
-    {15, 21, 17, 1, 21, 40, 2949},   // Ô
-    {15, 19, 17, 1, 19, 36, 2989},   // Õ
-    {15, 19, 17, 1, 19, 36, 3025},   // Ö
-    {10, 9, 12, 1, 11, 12, 3061},    // ×
-    {15, 17, 17, 1, 16, 32, 3073},   // Ø
-    {13, 21, 15, 1, 21, 35, 3105},   // Ù
-    {13, 21, 15, 1, 21, 35, 3140},   // Ú
-    {13, 21, 15, 1, 21, 35, 3175},   // Û
-    {13, 19, 15, 1, 19, 31, 3210},   // Ü
-    {14, 21, 14, 0, 21, 37, 3241},   // Ý
-    {12, 15, 14, 1, 15, 23, 3278},   // Þ
-    {13, 16, 14, 1, 16, 26, 3301},   // ß
-    {11, 17, 12, 0, 17, 24, 3327},   // à
-    {11, 17, 12, 0, 17, 24, 3351},   // á
-    {11, 17, 12, 0, 17, 24, 3375},   // â
-    {11, 16, 12, 0, 16, 22, 3399},   // ã
-    {11, 16, 12, 0, 16, 22, 3421},   // ä
-    {11, 18, 12, 0, 18, 25, 3443},   // å
-    {18, 11, 18, 0, 11, 25, 3468},   // æ
-    {10, 15, 11, 0, 11, 19, 3493},   // ç
-    {12, 17, 12, 0, 17, 26, 3512},   // è
-    {12, 17, 12, 0, 17, 26, 3538},   // é
-    {12, 17, 12, 0, 17, 26, 3564},   // ê
-    {12, 16, 12, 0, 16, 24, 3590},   // ë
-    {6, 17, 6, 0, 17, 13, 3614},     // ì
-    {6, 17, 6, 0, 17, 13, 3627},     // í
-    {8, 17, 6, -1, 17, 17, 3640},    // î
-    {9, 16, 6, -2, 16, 18, 3657},    // ï
-    {13, 16, 13, 0, 16, 26, 3675},   // ð
-    {10, 16, 12, 1, 16, 20, 3701},   // ñ
-    {12, 17, 13, 0, 17, 26, 3721},   // ò
-    {12, 17, 13, 0, 17, 26, 3747},   // ó
-    {12, 17, 13, 0, 17, 26, 3773},   // ô
-    {12, 16, 13, 0, 16, 24, 3799},   // õ
-    {12, 16, 13, 0, 16, 24, 3823},   // ö
-    {10, 13, 12, 1, 13, 17, 3847},   // ÷
-    {12, 13, 13, 0, 12, 20, 3864},   // ø
-    {10, 17, 12, 1, 17, 22, 3884},   // ù
-    {10, 17, 12, 1, 17, 22, 3906},   // ú
-    {10, 17, 12, 1, 17, 22, 3928},   // û
-    {10, 16, 12, 1, 16, 20, 3950},   // ü
-    {12, 21, 11, 0, 17, 32, 3970},   // ý
-    {11, 20, 13, 1, 16, 28, 4002},   // þ
-    {12, 20, 11, 0, 16, 30, 4030},   // ÿ
-    {15, 18, 15, 0, 18, 34, 4060},   // Ā
-    {11, 15, 12, 0, 15, 21, 4094},   // ā
-    {15, 19, 15, 0, 19, 36, 4115},   // Ă
-    {11, 16, 12, 0, 16, 22, 4151},   // ă
-    {16, 20, 15, 0, 15, 40, 4173},   // Ą
-    {11, 15, 12, 0, 11, 21, 4213},   // ą
-    {13, 21, 14, 1, 21, 35, 4234},   // Ć
-    {10, 17, 11, 0, 17, 22, 4269},   // ć
-    {13, 21, 14, 1, 21, 35, 4291},   // Ĉ
-    {10, 17, 11, 0, 17, 22, 4326},   // ĉ
-    {13, 19, 14, 1, 19, 31, 4348},   // Ċ
-    {10, 16, 11, 0, 16, 20, 4379},   // ċ
-    {13, 21, 14, 1, 21, 35, 4399},   // Č
-    {10, 17, 11, 0, 17, 22, 4434},   // č
-    {14, 21, 15, 1, 21, 37, 4456},   // Ď
-    {16, 16, 14, 0, 16, 32, 4493},   // ď
-    {15, 15, 16, 0, 15, 29, 4525},   // Đ
-    {13, 16, 13, 0, 16, 26, 4554},   // đ
-    {11, 18, 13, 1, 18, 25, 4580},   // Ē
-    {12, 15, 12, 0, 15, 23, 4605},   // ē
-    {11, 19, 13, 1, 19, 27, 4628},   // Ĕ
-    {12, 16, 12, 0, 16, 24, 4655},   // ĕ
-    {11, 19, 13, 1, 19, 27, 4679},   // Ė
-    {12, 16, 12, 0, 16, 24, 4706},   // ė
-    {12, 20, 13, 1, 15, 30, 4730},   // Ę
-    {12, 15, 12, 0, 11, 23, 4760},   // ę
-    {11, 21, 13, 1, 21, 29, 4783},   // Ě
-    {12, 17, 12, 0, 17, 26, 4812},   // ě
-    {13, 21, 15, 1, 21, 35, 4838},   // Ĝ
-    {11, 21, 12, 0, 17, 29, 4873},   // ĝ
-    {13, 19, 15, 1, 19, 31, 4902},   // Ğ
-    {11, 20, 12, 0, 16, 28, 4933},   // ğ
-    {13, 19, 15, 1, 19, 31, 4961},   // Ġ
-    {11, 20, 12, 0, 16, 28, 4992},   // ġ
-    {13, 20, 15, 1, 15, 33, 5020},   // Ģ
-    {11, 21, 12, 0, 17, 29, 5053},   // ģ
-    {13, 21, 15, 1, 21, 35, 5082},   // Ĥ
-    {10, 20, 12, 1, 20, 25, 5117},   // ĥ
-    {16, 15, 16, 0, 15, 30, 5142},   // Ħ
-    {12, 16, 13, 0, 16, 24, 5172},   // ħ
-    {9, 19, 7, -1, 19, 22, 5196},    // Ĩ
-    {8, 16, 6, -1, 16, 16, 5218},    // ĩ
-    {8, 18, 7, -1, 18, 18, 5234},    // Ī
-    {8, 15, 6, -1, 15, 15, 5252},    // ī
-    {7, 19, 7, 0, 19, 17, 5267},     // Ĭ
-    {8, 16, 6, -1, 16, 16, 5284},    // ĭ
-    {6, 20, 7, 0, 15, 15, 5300},     // Į
-    {6, 21, 6, 0, 16, 16, 5315},     // į
-    {4, 19, 7, 1, 19, 10, 5331},     // İ
-    {4, 11, 6, 1, 11, 6, 5341},      // ı
-    {16, 15, 18, 1, 15, 30, 5347},   // IJ
-    {10, 20, 12, 1, 16, 25, 5377},   // ij
-    {12, 21, 11, 0, 21, 32, 5402},   // Ĵ
-    {9, 21, 6, -2, 17, 24, 5434},    // ĵ
-    {14, 20, 14, 1, 15, 35, 5458},   // Ķ
-    {11, 21, 12, 1, 16, 29, 5493},   // ķ
-    {12, 11, 12, 1, 11, 17, 5522},   // ĸ
-    {11, 21, 12, 1, 21, 29, 5539},   // Ĺ
-    {6, 21, 7, 1, 21, 16, 5568},     // ĺ
-    {11, 20, 12, 1, 15, 28, 5584},   // Ļ
-    {6, 21, 7, 1, 16, 16, 5612},     // ļ
-    {11, 15, 12, 1, 15, 21, 5628},   // Ľ
-    {8, 16, 8, 1, 16, 16, 5649},     // ľ
-    {11, 15, 12, 1, 15, 21, 5665},   // Ŀ
-    {10, 16, 11, 1, 16, 20, 5686},   // ŀ
-    {13, 15, 12, 0, 15, 25, 5706},   // Ł
-    {9, 16, 8, -1, 16, 18, 5731},    // ł
-    {14, 21, 16, 1, 21, 37, 5749},   // Ń
-    {10, 17, 12, 1, 17, 22, 5786},   // ń
-    {14, 20, 16, 1, 15, 35, 5808},   // Ņ
-    {10, 16, 12, 1, 11, 20, 5843},   // ņ
-    {14, 21, 16, 1, 21, 37, 5863},   // Ň
-    {10, 17, 12, 1, 17, 22, 5900},   // ň
-    {13, 16, 13, -1, 16, 26, 5922},  // ʼn
-    {14, 19, 16, 1, 15, 34, 5948},   // Ŋ
-    {10, 15, 12, 1, 11, 19, 5982},   // ŋ
-    {15, 18, 17, 1, 18, 34, 6001},   // Ō
-    {12, 15, 13, 0, 15, 23, 6035},   // ō
-    {15, 19, 17, 1, 19, 36, 6058},   // Ŏ
-    {12, 16, 13, 0, 16, 24, 6094},   // ŏ
-    {15, 21, 17, 1, 21, 40, 6118},   // Ő
-    {12, 17, 13, 0, 17, 26, 6158},   // ő
-    {20, 15, 21, 1, 15, 38, 6184},   // Œ
-    {19, 11, 20, 0, 11, 27, 6222},   // œ
-    {13, 21, 14, 1, 21, 35, 6249},   // Ŕ
-    {8, 17, 9, 1, 17, 17, 6284},     // ŕ
-    {13, 20, 14, 1, 15, 33, 6301},   // Ŗ
-    {9, 16, 9, 0, 11, 18, 6334},     // ŗ
-    {13, 20, 14, 1, 20, 33, 6352},   // Ř
-    {8, 17, 9, 1, 17, 17, 6385},     // ř
-    {12, 21, 12, 0, 21, 32, 6402},   // Ś
-    {10, 17, 10, 0, 17, 22, 6434},   // ś
-    {12, 21, 12, 0, 21, 32, 6456},   // Ŝ
-    {10, 17, 10, 0, 17, 22, 6488},   // ŝ
-    {12, 20, 12, 0, 15, 30, 6510},   // Ş
-    {10, 16, 10, 0, 11, 20, 6540},   // ş
-    {12, 21, 12, 0, 21, 32, 6560},   // Š
-    {10, 17, 10, 0, 17, 22, 6592},   // š
-    {13, 19, 13, 0, 15, 31, 6614},   // Ţ
-    {8, 18, 9, 1, 14, 18, 6645},     // ţ
-    {13, 21, 13, 0, 21, 35, 6663},   // Ť
-    {8, 16, 9, 1, 16, 16, 6698},     // ť
-    {13, 15, 13, 0, 15, 25, 6714},   // Ŧ
-    {8, 14, 9, 1, 14, 14, 6739},     // ŧ
-    {13, 19, 15, 1, 19, 31, 6753},   // Ũ
-    {10, 16, 12, 1, 16, 20, 6784},   // ũ
-    {13, 18, 15, 1, 18, 30, 6804},   // Ū
-    {10, 15, 12, 1, 15, 19, 6834},   // ū
-    {13, 19, 15, 1, 19, 31, 6853},   // Ŭ
-    {10, 16, 12, 1, 16, 20, 6884},   // ŭ
-    {13, 21, 15, 1, 21, 35, 6904},   // Ů
-    {10, 18, 12, 1, 18, 23, 6939},   // ů
-    {13, 21, 15, 1, 21, 35, 6962},   // Ű
-    {11, 17, 12, 1, 17, 24, 6997},   // ű
-    {13, 19, 15, 1, 15, 31, 7021},   // Ų
-    {10, 15, 12, 1, 11, 19, 7052},   // ų
-    {20, 21, 20, 0, 21, 53, 7071},   // Ŵ
-    {17, 17, 16, 0, 17, 37, 7124},   // ŵ
-    {14, 21, 14, 0, 21, 37, 7161},   // Ŷ
-    {12, 21, 11, 0, 17, 32, 7198},   // ŷ
-    {14, 19, 14, 0, 19, 34, 7230},   // Ÿ
-    {13, 21, 13, 0, 21, 35, 7264},   // Ź
-    {10, 17, 11, 0, 17, 22, 7299},   // ź
-    {13, 19, 13, 0, 19, 31, 7321},   // Ż
-    {10, 16, 11, 0, 16, 20, 7352},   // ż
-    {13, 21, 13, 0, 21, 35, 7372},   // Ž
-    {10, 17, 11, 0, 17, 22, 7407},   // ž
-    {9, 16, 7, 1, 16, 18, 7429},     // ſ
-    {8, 3, 8, 0, 15, 3, 7447},       // ̑
-    {11, 3, 11, 0, 8, 5, 7450},      // –
-    {21, 3, 21, 0, 8, 8, 7455},      // —
-    {21, 3, 21, 0, 8, 8, 7463},      // ―
-    {5, 6, 5, 0, 16, 4, 7471},       // ‘
-    {5, 6, 5, 0, 16, 4, 7475},       // ’
-    {5, 6, 5, 0, 3, 4, 7479},        // ‚
-    {10, 6, 10, 0, 16, 8, 7483},     // “
-    {9, 6, 10, 0, 16, 7, 7491},      // ”
-    {9, 6, 10, 0, 3, 7, 7498},       // „
-    {10, 18, 10, 0, 15, 23, 7505},   // †
-    {10, 18, 10, 0, 15, 23, 7528},   // ‡
-    {7, 6, 8, 0, 10, 6, 7551},       // •
-    {19, 4, 21, 1, 4, 10, 7557},     // …
-    {27, 15, 28, 0, 15, 51, 7567},   // ‰
-    {7, 11, 7, 0, 11, 10, 7618},     // ‹
-    {7, 11, 7, 0, 11, 10, 7628},     // ›
-    {11, 15, 3, -4, 15, 21, 7638},   // ⁄
-    {12, 15, 12, 0, 15, 23, 7659},   // €
-    {12, 15, 12, 0, 15, 23, 7682},   // ₮
-    {12, 15, 12, 0, 15, 23, 7705},   // ₴
-    {13, 15, 12, 0, 15, 25, 7728},   // ₹
-    {12, 15, 13, 0, 15, 23, 7753},   // ∂
-    {15, 15, 15, 0, 15, 29, 7776},   // ∆
-    {13, 17, 15, 1, 15, 28, 7805},   // ∏
-    {11, 17, 11, 0, 15, 24, 7833},   // ∑
-    {10, 3, 12, 1, 8, 4, 7857},      // −
-    {11, 15, 3, -4, 15, 21, 7861},   // ∕
-    {5, 4, 5, 0, 9, 3, 7882},        // ∙
-    {14, 15, 13, 0, 15, 27, 7885},   // √
-    {13, 7, 13, 0, 10, 12, 7912},    // ∞
-    {9, 21, 8, 0, 16, 24, 7924},     // ∫
-    {12, 11, 12, 0, 12, 17, 7948},   // ≈
-    {10, 14, 12, 1, 14, 18, 7965},   // ≠
-    {10, 13, 12, 1, 13, 17, 7983},   // ≤
-    {10, 13, 12, 1, 13, 17, 8000},   // ≥
-};
-
-static const EpdUnicodeInterval ubuntu_bold_10Intervals[] = {
-    {0x0, 0x0, 0x0},         {0x8, 0x9, 0x1},         {0xD, 0xD, 0x3},         {0x1D, 0x1D, 0x4},
-    {0x20, 0x7E, 0x5},       {0xA0, 0xFF, 0x64},      {0x100, 0x17F, 0xC4},    {0x311, 0x311, 0x144},
-    {0x2013, 0x2015, 0x145}, {0x2018, 0x201A, 0x148}, {0x201C, 0x201E, 0x14B}, {0x2020, 0x2022, 0x14E},
-    {0x2026, 0x2026, 0x151}, {0x2030, 0x2030, 0x152}, {0x2039, 0x203A, 0x153}, {0x2044, 0x2044, 0x155},
-    {0x20AC, 0x20AC, 0x156}, {0x20AE, 0x20AE, 0x157}, {0x20B4, 0x20B4, 0x158}, {0x20B9, 0x20B9, 0x159},
-    {0x2202, 0x2202, 0x15A}, {0x2206, 0x2206, 0x15B}, {0x220F, 0x220F, 0x15C}, {0x2211, 0x2212, 0x15D},
-    {0x2215, 0x2215, 0x15F}, {0x2219, 0x221A, 0x160}, {0x221E, 0x221E, 0x162}, {0x222B, 0x222B, 0x163},
-    {0x2248, 0x2248, 0x164}, {0x2260, 0x2260, 0x165}, {0x2264, 0x2265, 0x166},
-};
-
-static const EpdFontData ubuntu_bold_10 = {
-    ubuntu_bold_10Bitmaps, ubuntu_bold_10Glyphs, ubuntu_bold_10Intervals, 31, 24, 20, -4,
-};

lib/EpdFont/scripts/fontconvert.py

@@ -1,247 +0,0 @@
-#!python3
-import freetype
-import zlib
-import sys
-import re
-import math
-import argparse
-from collections import namedtuple
-
-# Originally from https://github.com/vroland/epdiy
-
-parser = argparse.ArgumentParser(description="Generate a header file from a font to be used with epdiy.")
-parser.add_argument("name", action="store", help="name of the font.")
-parser.add_argument("size", type=int, help="font size to use.")
-parser.add_argument("fontstack", action="store", nargs='+', help="list of font files, ordered by descending priority.")
-parser.add_argument("--additional-intervals", dest="additional_intervals", action="append", help="Additional code point intervals to export as min,max. This argument can be repeated.")
-args = parser.parse_args()
-
-GlyphProps = namedtuple("GlyphProps", ["width", "height", "advance_x", "left", "top", "data_length", "data_offset", "code_point"])
-
-font_stack = [freetype.Face(f) for f in args.fontstack]
-size = args.size
-font_name = args.name
-
-# inclusive unicode code point intervals
-# must not overlap and be in ascending order
-intervals = [
-    ### Basic Latin ###
-    # ASCII letters, digits, punctuation, control characters
-    (0x0000, 0x007F),
-    ### Latin-1 Supplement ###
-    # Accented characters for Western European languages
-    (0x0080, 0x00FF),
-    ### Latin Extended-A ###
-    # Eastern European and Baltic languages
-    (0x0100, 0x017F),
-    ### General Punctuation (core subset) ###
-    # Smart quotes, en dash, em dash, ellipsis, NO-BREAK SPACE
-    (0x2000, 0x206F),
-    ### Basic Symbols From "Latin-1 + Misc" ###
-    # dashes, quotes, prime marks
-    (0x2010, 0x203A),
-    # misc punctuation
-    (0x2040, 0x205F),
-    # common currency symbols
-    (0x20A0, 0x20CF),
-    ### Combining Diacritical Marks (minimal subset) ###
-    # Needed for proper rendering of many extended Latin languages
-    (0x0300, 0x036F),
-    ### Greek & Coptic ###
-    # Used in science, maths, philosophy, some academic texts
-    # (0x0370, 0x03FF),
-    ### Cyrillic ###
-    # Russian, Ukrainian, Bulgarian, etc.
-    # (0x0400, 0x04FF),
-    ### Math Symbols (common subset) ###
-    # General math operators
-    (0x2200, 0x22FF),
-    # Arrows
-    (0x2190, 0x21FF),
-    ### CJK ###
-    # Core Unified Ideographs
-    # (0x4E00, 0x9FFF),
-    # # Extension A
-    # (0x3400, 0x4DBF),
-    # # Extension B
-    # (0x20000, 0x2A6DF),
-    # # Extension C–F
-    # (0x2A700, 0x2EBEF),
-    # # Extension G
-    # (0x30000, 0x3134F),
-    # # Hiragana
-    # (0x3040, 0x309F),
-    # # Katakana
-    # (0x30A0, 0x30FF),
-    # # Katakana Phonetic Extensions
-    # (0x31F0, 0x31FF),
-    # # Halfwidth Katakana
-    # (0xFF60, 0xFF9F),
-    # # Hangul Syllables
-    # (0xAC00, 0xD7AF),
-    # # Hangul Jamo
-    # (0x1100, 0x11FF),
-    # # Hangul Compatibility Jamo
-    # (0x3130, 0x318F),
-    # # Hangul Jamo Extended-A
-    # (0xA960, 0xA97F),
-    # # Hangul Jamo Extended-B
-    # (0xD7B0, 0xD7FF),
-    # # CJK Radicals Supplement
-    # (0x2E80, 0x2EFF),
-    # # Kangxi Radicals
-    # (0x2F00, 0x2FDF),
-    # # CJK Symbols and Punctuation
-    # (0x3000, 0x303F),
-    # # CJK Compatibility Forms
-    # (0xFE30, 0xFE4F),
-    # # CJK Compatibility Ideographs
-    # (0xF900, 0xFAFF),
-]
-
-add_ints = []
-if args.additional_intervals:
-    add_ints = [tuple([int(n, base=0) for n in i.split(",")]) for i in args.additional_intervals]
-
-def norm_floor(val):
-    return int(math.floor(val / (1 << 6)))
-
-def norm_ceil(val):
-    return int(math.ceil(val / (1 << 6)))
-
-def chunks(l, n):
-    for i in range(0, len(l), n):
-        yield l[i:i + n]
-
-def load_glyph(code_point):
-    face_index = 0
-    while face_index < len(font_stack):
-        face = font_stack[face_index]
-        glyph_index = face.get_char_index(code_point)
-        if glyph_index > 0:
-            face.load_glyph(glyph_index, freetype.FT_LOAD_RENDER)
-            return face
-        face_index += 1
-    print(f"code point {code_point} ({hex(code_point)}) not found in font stack!", file=sys.stderr)
-    return None
-
-unmerged_intervals = sorted(intervals + add_ints)
-intervals = []
-unvalidated_intervals = []
-for i_start, i_end in unmerged_intervals:
-    if len(unvalidated_intervals) > 0 and i_start + 1 <= unvalidated_intervals[-1][1]:
-        unvalidated_intervals[-1] = (unvalidated_intervals[-1][0], max(unvalidated_intervals[-1][1], i_end))
-        continue
-    unvalidated_intervals.append((i_start, i_end))
-
-for i_start, i_end in unvalidated_intervals:
-    start = i_start
-    for code_point in range(i_start, i_end + 1):
-        face = load_glyph(code_point)
-        if face is None:
-            if start < code_point:
-                intervals.append((start, code_point - 1))
-            start = code_point + 1
-    if start != i_end + 1:
-        intervals.append((start, i_end))
-
-for face in font_stack:
-    face.set_char_size(size << 6, size << 6, 150, 150)
-
-total_size = 0
-all_glyphs = []
-
-for i_start, i_end in intervals:
-    for code_point in range(i_start, i_end + 1):
-        face = load_glyph(code_point)
-        bitmap = face.glyph.bitmap
-
-        # Build out 4-bit greyscale bitmap
-        pixels4g = []
-        px = 0
-        for i, v in enumerate(bitmap.buffer):
-            y = i / bitmap.width
-            x = i % bitmap.width
-            if x % 2 == 0:
-                px = (v >> 4)
-            else:
-                px = px | (v & 0xF0)
-                pixels4g.append(px);
-                px = 0
-            # eol
-            if x == bitmap.width - 1 and bitmap.width % 2 > 0:
-                pixels4g.append(px)
-                px = 0
-
-        # Downsample to 1-bit bitmap - treat any non-zero as black
-        pixelsbw = []
-        px = 0
-        pitch = (bitmap.width // 2) + (bitmap.width % 2)
-        for y in range(bitmap.rows):
-            for x in range(bitmap.width):
-                px = px << 1
-                bm = pixels4g[y * pitch + (x // 2)]
-                px += 1 if ((x & 1) == 0 and bm & 0xF > 0) or ((x & 1) == 1 and bm & 0xF0 > 0) else 0
-
-                if (y * bitmap.width + x) % 8 == 7:
-                    pixelsbw.append(px)
-                    px = 0
-        if (bitmap.width * bitmap.rows) % 8 != 0:
-            px = px << (8 - (bitmap.width * bitmap.rows) % 8)
-            pixelsbw.append(px)
-
-
-        # Build output data
-        packed = bytes(pixelsbw)
-        glyph = GlyphProps(
-            width = bitmap.width,
-            height = bitmap.rows,
-            advance_x = norm_floor(face.glyph.advance.x),
-            left = face.glyph.bitmap_left,
-            top = face.glyph.bitmap_top,
-            data_length = len(packed),
-            data_offset = total_size,
-            code_point = code_point,
-        )
-        total_size += len(packed)
-        all_glyphs.append((glyph, packed))
-
-# pipe seems to be a good heuristic for the "real" descender
-face = load_glyph(ord('|'))
-
-glyph_data = []
-glyph_props = []
-for index, glyph in enumerate(all_glyphs):
-    props, packed = glyph
-    glyph_data.extend([b for b in packed])
-    glyph_props.append(props)
-
-print(f"/**\n * generated by fontconvert.py\n * name: {font_name}\n * size: {size}\n */")
-print("#pragma once")
-print("#include \"EpdFontData.h\"\n")
-print(f"static const uint8_t {font_name}Bitmaps[{len(glyph_data)}] = {{")
-for c in chunks(glyph_data, 16):
-    print ("    " + " ".join(f"0x{b:02X}," for b in c))
-print ("};\n");
-
-print(f"static const EpdGlyph {font_name}Glyphs[] = {{")
-for i, g in enumerate(glyph_props):
-    print ("    { " + ", ".join([f"{a}" for a in list(g[:-1])]),"},", f"// {chr(g.code_point) if g.code_point != 92 else '<backslash>'}")
-print ("};\n");
-
-print(f"static const EpdUnicodeInterval {font_name}Intervals[] = {{")
-offset = 0
-for i_start, i_end in intervals:
-    print (f"    {{ 0x{i_start:X}, 0x{i_end:X}, 0x{offset:X} }},")
-    offset += i_end - i_start + 1
-print ("};\n");
-
-print(f"static const EpdFontData {font_name} = {{")
-print(f"    {font_name}Bitmaps,")
-print(f"    {font_name}Glyphs,")
-print(f"    {font_name}Intervals,")
-print(f"    {len(intervals)},")
-print(f"    {norm_ceil(face.size.height)},")
-print(f"    {norm_ceil(face.size.ascender)},")
-print(f"    {norm_floor(face.size.descender)},")
-print("};")

lib/EpdFont/scripts/requirements.txt

@@ -1 +0,0 @@
-freetype-py==2.5.1

lib/EpdFontRenderer/EpdFontRenderer.hpp

@@ -1,84 +0,0 @@
-#pragma once
-#include <EpdFontFamily.h>
-#include <HardwareSerial.h>
-#include <Utf8.h>
-
-inline int min(const int a, const int b) { return a < b ? a : b; }
-inline int max(const int a, const int b) { return a > b ? a : b; }
-
-template <typename Renderable>
-class EpdFontRenderer {
-  Renderable& renderer;
-  void renderChar(uint32_t cp, int* x, const int* y, uint16_t color, EpdFontStyle style = REGULAR);
-
- public:
-  const EpdFontFamily* fontFamily;
-  explicit EpdFontRenderer(const EpdFontFamily* fontFamily, Renderable& renderer)
-      : fontFamily(fontFamily), renderer(renderer) {}
-  ~EpdFontRenderer() = default;
-  void renderString(const char* string, int* x, int* y, uint16_t color, EpdFontStyle style = REGULAR);
-};
-
-template <typename Renderable>
-void EpdFontRenderer<Renderable>::renderString(const char* string, int* x, int* y, const uint16_t color,
-                                               const EpdFontStyle style) {
-  // cannot draw a NULL / empty string
-  if (string == nullptr || *string == '\0') {
-    return;
-  }
-
-  // no printable characters
-  if (!fontFamily->hasPrintableChars(string, style)) {
-    return;
-  }
-
-  uint32_t cp;
-  while ((cp = utf8NextCodepoint(reinterpret_cast<const uint8_t**>(&string)))) {
-    renderChar(cp, x, y, color, style);
-  }
-
-  *y += fontFamily->getData(style)->advanceY;
-}
-
-template <typename Renderable>
-void EpdFontRenderer<Renderable>::renderChar(const uint32_t cp, int* x, const int* y, uint16_t color,
-                                             const EpdFontStyle style) {
-  const EpdGlyph* glyph = fontFamily->getGlyph(cp, style);
-  if (!glyph) {
-    // TODO: Replace with fallback glyph property?
-    glyph = fontFamily->getGlyph('?', style);
-  }
-
-  // no glyph?
-  if (!glyph) {
-    Serial.printf("No glyph for codepoint %d\n", cp);
-    return;
-  }
-
-  const uint32_t offset = glyph->dataOffset;
-  const uint8_t width = glyph->width;
-  const uint8_t height = glyph->height;
-  const int left = glyph->left;
-
-  const uint8_t* bitmap = nullptr;
-  bitmap = &fontFamily->getData(style)->bitmap[offset];
-
-  if (bitmap != nullptr) {
-    for (int glyphY = 0; glyphY < height; glyphY++) {
-      int screenY = *y - glyph->top + glyphY;
-      for (int glyphX = 0; glyphX < width; glyphX++) {
-        const int pixelPosition = glyphY * width + glyphX;
-        int screenX = *x + left + glyphX;
-
-        const uint8_t byte = bitmap[pixelPosition / 8];
-        const uint8_t bit_index = 7 - (pixelPosition % 8);
-
-        if ((byte >> bit_index) & 1) {
-          renderer.drawPixel(screenX, screenY, color);
-        }
-      }
-    }
-  }
-
-  *x += glyph->advanceX;
-}

lib/EpdRenderer/EpdRenderer.cpp

@@ -1,168 +0,0 @@
-#include "EpdRenderer.h"
-
-#include "builtinFonts/babyblue.h"
-#include "builtinFonts/bookerly.h"
-#include "builtinFonts/bookerly_bold.h"
-#include "builtinFonts/bookerly_bold_italic.h"
-#include "builtinFonts/bookerly_italic.h"
-#include "builtinFonts/ubuntu_10.h"
-#include "builtinFonts/ubuntu_bold_10.h"
-
-EpdFont bookerlyFont(&bookerly);
-EpdFont bookerlyBoldFont(&bookerly_bold);
-EpdFont bookerlyItalicFont(&bookerly_italic);
-EpdFont bookerlyBoldItalicFont(&bookerly_bold_italic);
-EpdFontFamily bookerlyFontFamily(&bookerlyFont, &bookerlyBoldFont, &bookerlyItalicFont, &bookerlyBoldItalicFont);
-
-EpdFont smallFont(&babyblue);
-EpdFontFamily smallFontFamily(&smallFont);
-
-EpdFont ubuntu10Font(&ubuntu_10);
-EpdFont ununtuBold10Font(&ubuntu_bold_10);
-EpdFontFamily ubuntuFontFamily(&ubuntu10Font, &ununtuBold10Font);
-
-EpdRenderer::EpdRenderer(XteinkDisplay& display)
-    : display(display), marginTop(11), marginBottom(30), marginLeft(10), marginRight(10), lineCompression(0.95f) {
-  this->regularFontRenderer = new EpdFontRenderer<XteinkDisplay>(&bookerlyFontFamily, display);
-  this->smallFontRenderer = new EpdFontRenderer<XteinkDisplay>(&smallFontFamily, display);
-  this->uiFontRenderer = new EpdFontRenderer<XteinkDisplay>(&ubuntuFontFamily, display);
-}
-
-EpdRenderer::~EpdRenderer() {
-  delete regularFontRenderer;
-  delete smallFontRenderer;
-  delete uiFontRenderer;
-}
-
-int EpdRenderer::getTextWidth(const char* text, const EpdFontStyle style) const {
-  int w = 0, h = 0;
-
-  regularFontRenderer->fontFamily->getTextDimensions(text, &w, &h, style);
-
-  return w;
-}
-
-int EpdRenderer::getUiTextWidth(const char* text, const EpdFontStyle style) const {
-  int w = 0, h = 0;
-
-  uiFontRenderer->fontFamily->getTextDimensions(text, &w, &h, style);
-
-  return w;
-}
-
-int EpdRenderer::getSmallTextWidth(const char* text, const EpdFontStyle style) const {
-  int w = 0, h = 0;
-
-  smallFontRenderer->fontFamily->getTextDimensions(text, &w, &h, style);
-
-  return w;
-}
-
-void EpdRenderer::drawText(const int x, const int y, const char* text, const uint16_t color,
-                           const EpdFontStyle style) const {
-  int ypos = y + getLineHeight() + marginTop;
-  int xpos = x + marginLeft;
-  regularFontRenderer->renderString(text, &xpos, &ypos, color > 0 ? GxEPD_BLACK : GxEPD_WHITE, style);
-}
-
-void EpdRenderer::drawUiText(const int x, const int y, const char* text, const uint16_t color,
-                             const EpdFontStyle style) const {
-  int ypos = y + uiFontRenderer->fontFamily->getData(style)->advanceY + marginTop;
-  int xpos = x + marginLeft;
-  uiFontRenderer->renderString(text, &xpos, &ypos, color > 0 ? GxEPD_BLACK : GxEPD_WHITE, style);
-}
-
-void EpdRenderer::drawSmallText(const int x, const int y, const char* text, const uint16_t color,
-                                const EpdFontStyle style) const {
-  int ypos = y + smallFontRenderer->fontFamily->getData(style)->advanceY + marginTop;
-  int xpos = x + marginLeft;
-  smallFontRenderer->renderString(text, &xpos, &ypos, color > 0 ? GxEPD_BLACK : GxEPD_WHITE, style);
-}
-
-void EpdRenderer::drawTextBox(const int x, const int y, const std::string& text, const int width, const int height,
-                              const EpdFontStyle style) const {
-  const size_t length = text.length();
-  // fit the text into the box
-  int start = 0;
-  int end = 1;
-  int ypos = 0;
-  while (true) {
-    if (end >= length) {
-      drawText(x, y + ypos, text.substr(start, length - start).c_str(), 1, style);
-      break;
-    }
-
-    if (ypos + getLineHeight() >= height) {
-      break;
-    }
-
-    if (text[end - 1] == '\n') {
-      drawText(x, y + ypos, text.substr(start, end - start).c_str(), 1, style);
-      ypos += getLineHeight();
-      start = end;
-      end = start + 1;
-      continue;
-    }
-
-    if (getTextWidth(text.substr(start, end - start).c_str(), style) > width) {
-      drawText(x, y + ypos, text.substr(start, end - start - 1).c_str(), 1, style);
-      ypos += getLineHeight();
-      start = end - 1;
-      continue;
-    }
-
-    end++;
-  }
-}
-
-void EpdRenderer::drawLine(int x1, int y1, int x2, int y2, uint16_t color) const {
-  display.drawLine(x1 + marginLeft, y1 + marginTop, x2 + marginLeft, y2 + marginTop,
-                   color > 0 ? GxEPD_BLACK : GxEPD_WHITE);
-}
-
-void EpdRenderer::drawRect(const int x, const int y, const int width, const int height, const uint16_t color) const {
-  display.drawRect(x + marginLeft, y + marginTop, width, height, color > 0 ? GxEPD_BLACK : GxEPD_WHITE);
-}
-
-void EpdRenderer::fillRect(const int x, const int y, const int width, const int height, const uint16_t color) const {
-  display.fillRect(x + marginLeft, y + marginTop, width, height, color > 0 ? GxEPD_BLACK : GxEPD_WHITE);
-}
-
-void EpdRenderer::drawCircle(const int x, const int y, const int radius, const uint16_t color) const {
-  display.drawCircle(x + marginLeft, y + marginTop, radius, color > 0 ? GxEPD_BLACK : GxEPD_WHITE);
-}
-
-void EpdRenderer::fillCircle(const int x, const int y, const int radius, const uint16_t color) const {
-  display.fillCircle(x + marginLeft, y + marginTop, radius, color > 0 ? GxEPD_BLACK : GxEPD_WHITE);
-}
-
-void EpdRenderer::drawImage(const uint8_t bitmap[], const int x, const int y, const int width, const int height,
-                            const bool invert, const bool mirrorY) const {
-  drawImageNoMargin(bitmap, x + marginLeft, y + marginTop, width, height, invert, mirrorY);
-}
-
-void EpdRenderer::drawImageNoMargin(const uint8_t bitmap[], const int x, const int y, const int width, const int height,
-                                    const bool invert, const bool mirrorY) const {
-  display.drawImage(bitmap, x, y, width, height, invert, mirrorY);
-}
-
-void EpdRenderer::clearScreen(const bool black) const {
-  Serial.println("Clearing screen");
-  display.fillScreen(black ? GxEPD_BLACK : GxEPD_WHITE);
-}
-
-void EpdRenderer::flushDisplay(const bool partialUpdate) const { display.display(partialUpdate); }
-
-void EpdRenderer::flushArea(const int x, const int y, const int width, const int height) const {
-  display.displayWindow(x + marginLeft, y + marginTop, width, height);
-}
-
-int EpdRenderer::getPageWidth() const { return display.width() - marginLeft - marginRight; }
-
-int EpdRenderer::getPageHeight() const { return display.height() - marginTop - marginBottom; }
-
-int EpdRenderer::getSpaceWidth() const { return regularFontRenderer->fontFamily->getGlyph(' ', REGULAR)->advanceX; }
-
-int EpdRenderer::getLineHeight() const {
-  return regularFontRenderer->fontFamily->getData(REGULAR)->advanceY * lineCompression;
-}

lib/EpdRenderer/EpdRenderer.h

@@ -1,52 +0,0 @@
-#pragma once
-
-#include <GxEPD2_BW.h>
-
-#include <EpdFontRenderer.hpp>
-
-#define XteinkDisplay GxEPD2_BW<GxEPD2_426_GDEQ0426T82, GxEPD2_426_GDEQ0426T82::HEIGHT>
-
-class EpdRenderer {
-  XteinkDisplay& display;
-  EpdFontRenderer<XteinkDisplay>* regularFontRenderer;
-  EpdFontRenderer<XteinkDisplay>* smallFontRenderer;
-  EpdFontRenderer<XteinkDisplay>* uiFontRenderer;
-  int marginTop;
-  int marginBottom;
-  int marginLeft;
-  int marginRight;
-  float lineCompression;
-
- public:
-  explicit EpdRenderer(XteinkDisplay& display);
-  ~EpdRenderer();
-  int getTextWidth(const char* text, EpdFontStyle style = REGULAR) const;
-  int getUiTextWidth(const char* text, EpdFontStyle style = REGULAR) const;
-  int getSmallTextWidth(const char* text, EpdFontStyle style = REGULAR) const;
-  void drawText(int x, int y, const char* text, uint16_t color = 1, EpdFontStyle style = REGULAR) const;
-  void drawUiText(int x, int y, const char* text, uint16_t color = 1, EpdFontStyle style = REGULAR) const;
-  void drawSmallText(int x, int y, const char* text, uint16_t color = 1, EpdFontStyle style = REGULAR) const;
-  void drawTextBox(int x, int y, const std::string& text, int width, int height, EpdFontStyle style = REGULAR) const;
-  void drawLine(int x1, int y1, int x2, int y2, uint16_t color = 1) const;
-  void drawRect(int x, int y, int width, int height, uint16_t color = 1) const;
-  void fillRect(int x, int y, int width, int height, uint16_t color = 1) const;
-  void drawCircle(int x, int y, int radius, uint16_t color = 1) const;
-  void fillCircle(int x, int y, int radius, uint16_t color = 1) const;
-  void drawImage(const uint8_t bitmap[], int x, int y, int width, int height, bool invert = false,
-                 bool mirrorY = false) const;
-  void drawImageNoMargin(const uint8_t bitmap[], int x, int y, int width, int height, bool invert = false,
-                         bool mirrorY = false) const;
-  void clearScreen(bool black = false) const;
-  void flushDisplay(bool partialUpdate = true) const;
-  void flushArea(int x, int y, int width, int height) const;
-
-  int getPageWidth() const;
-  int getPageHeight() const;
-  int getSpaceWidth() const;
-  int getLineHeight() const;
-  // set margins
-  void setMarginTop(const int newMarginTop) { this->marginTop = newMarginTop; }
-  void setMarginBottom(const int newMarginBottom) { this->marginBottom = newMarginBottom; }
-  void setMarginLeft(const int newMarginLeft) { this->marginLeft = newMarginLeft; }
-  void setMarginRight(const int newMarginRight) { this->marginRight = newMarginRight; }
-};

lib/Epub/Epub.cpp

@@ -1,320 +1,508 @@
 #include "Epub.h"
 
+#include <FsHelpers.h>
 #include <HardwareSerial.h>
-#include <SD.h>
+#include <JpegToBmpConverter.h>
+#include <SDCardManager.h>
 #include <ZipFile.h>
 
-#include <map>
+#include "Epub/parsers/ContainerParser.h"
+#include "Epub/parsers/ContentOpfParser.h"
+#include "Epub/parsers/TocNavParser.h"
+#include "Epub/parsers/TocNcxParser.h"
 
-bool Epub::findContentOpfFile(const ZipFile& zip, std::string& contentOpfFile) {
-  // open up the meta data to find where the content.opf file lives
-  size_t s;
-  const auto metaInfo = reinterpret_cast<char*>(zip.readFileToMemory("META-INF/container.xml", &s, true));
-  if (!metaInfo) {
-    Serial.println("Could not find META-INF/container.xml");
+bool Epub::findContentOpfFile(std::string* contentOpfFile) const {
+  const auto containerPath = "META-INF/container.xml";
+  size_t containerSize;
+
+  // Get file size without loading it all into heap
+  if (!getItemSize(containerPath, &containerSize)) {
+    Serial.printf("[%lu] [EBP] Could not find or size META-INF/container.xml\n", millis());
     return false;
   }
 
-  // parse the meta data
-  tinyxml2::XMLDocument metaDataDoc;
-  const auto result = metaDataDoc.Parse(metaInfo);
-  free(metaInfo);
+  ContainerParser containerParser(containerSize);
 
-  if (result != tinyxml2::XML_SUCCESS) {
-    Serial.printf("Could not parse META-INF/container.xml. Error: %d\n", result);
+  if (!containerParser.setup()) {
     return false;
   }
 
-  const auto container = metaDataDoc.FirstChildElement("container");
-  if (!container) {
-    Serial.println("Could not find container element in META-INF/container.xml");
+  // Stream read (reusing your existing stream logic)
+  if (!readItemContentsToStream(containerPath, containerParser, 512)) {
+    Serial.printf("[%lu] [EBP] Could not read META-INF/container.xml\n", millis());
     return false;
   }
 
-  const auto rootfiles = container->FirstChildElement("rootfiles");
-  if (!rootfiles) {
-    Serial.println("Could not find rootfiles element in META-INF/container.xml");
+  // Extract the result
+  if (containerParser.fullPath.empty()) {
+    Serial.printf("[%lu] [EBP] Could not find valid rootfile in container.xml\n", millis());
     return false;
   }
 
-  // find the root file that has the media-type="application/oebps-package+xml"
-  auto rootfile = rootfiles->FirstChildElement("rootfile");
-  while (rootfile) {
-    const char* mediaType = rootfile->Attribute("media-type");
-    if (mediaType && strcmp(mediaType, "application/oebps-package+xml") == 0) {
-      const char* full_path = rootfile->Attribute("full-path");
-      if (full_path) {
-        contentOpfFile = full_path;
-        return true;
-      }
-    }
-    rootfile = rootfile->NextSiblingElement("rootfile");
-  }
-
-  Serial.println("Could not get path to content.opf file");
-  return false;
-}
-
-bool Epub::parseContentOpf(ZipFile& zip, std::string& content_opf_file) {
-  // read in the content.opf file and parse it
-  auto contents = reinterpret_cast<char*>(zip.readFileToMemory(content_opf_file.c_str(), nullptr, true));
-
-  // parse the contents
-  tinyxml2::XMLDocument doc;
-  auto result = doc.Parse(contents);
-  free(contents);
-
-  if (result != tinyxml2::XML_SUCCESS) {
-    Serial.printf("Error parsing content.opf - %s\n", tinyxml2::XMLDocument::ErrorIDToName(result));
-    return false;
-  }
-
-  auto package = doc.FirstChildElement("package");
-  if (!package) package = doc.FirstChildElement("opf:package");
-
-  if (!package) {
-    Serial.println("Could not find package element in content.opf");
-    return false;
-  }
-
-  // get the metadata - title and cover image
-  auto metadata = package->FirstChildElement("metadata");
-  if (!metadata) metadata = package->FirstChildElement("opf:metadata");
-  if (!metadata) {
-    Serial.println("Missing metadata");
-    return false;
-  }
-
-  auto titleEl = metadata->FirstChildElement("dc:title");
-  if (!titleEl) {
-    Serial.println("Missing title");
-    return false;
-  }
-  this->title = titleEl->GetText();
-
-  auto cover = metadata->FirstChildElement("meta");
-  if (!cover) cover = metadata->FirstChildElement("opf:meta");
-  while (cover && cover->Attribute("name") && strcmp(cover->Attribute("name"), "cover") != 0) {
-    cover = cover->NextSiblingElement("meta");
-  }
-  if (!cover) {
-    Serial.println("Missing cover");
-  }
-  auto coverItem = cover ? cover->Attribute("content") : nullptr;
-
-  // read the manifest and spine
-  // the manifest gives us the names of the files
-  // the spine gives us the order of the files
-  // we can then read the files in the order they are in the spine
-  auto manifest = package->FirstChildElement("manifest");
-  if (!manifest) manifest = package->FirstChildElement("opf:manifest");
-  if (!manifest) {
-    Serial.println("Missing manifest");
-    return false;
-  }
-
-  // create a mapping from id to file name
-  auto item = manifest->FirstChildElement("item");
-  if (!item) item = manifest->FirstChildElement("opf:item");
-  std::map<std::string, std::string> items;
-
-  while (item) {
-    std::string itemId = item->Attribute("id");
-    std::string href = contentBasePath + item->Attribute("href");
-
-    // grab the cover image
-    if (coverItem && itemId == coverItem) {
-      coverImageItem = href;
-    }
-
-    // grab the ncx file
-    if (itemId == "ncx" || itemId == "ncxtoc") {
-      tocNcxItem = href;
-    }
-
-    items[itemId] = href;
-    auto nextItem = item->NextSiblingElement("item");
-    if (!nextItem) nextItem = item->NextSiblingElement("opf:item");
-    item = nextItem;
-  }
-
-  // find the spine
-  auto spineEl = package->FirstChildElement("spine");
-  if (!spineEl) spineEl = package->FirstChildElement("opf:spine");
-  if (!spineEl) {
-    Serial.println("Missing spine");
-    return false;
-  }
-
-  // read the spine
-  auto itemref = spineEl->FirstChildElement("itemref");
-  if (!itemref) itemref = spineEl->FirstChildElement("opf:itemref");
-  while (itemref) {
-    auto id = itemref->Attribute("idref");
-    if (items.find(id) != items.end()) {
-      spine.emplace_back(id, items[id]);
-    }
-    auto nextItemRef = itemref->NextSiblingElement("itemref");
-    if (!nextItemRef) nextItemRef = itemref->NextSiblingElement("opf:itemref");
-    itemref = nextItemRef;
-  }
+  *contentOpfFile = std::move(containerParser.fullPath);
   return true;
 }
 
-bool Epub::parseTocNcxFile(const ZipFile& zip) {
+bool Epub::parseContentOpf(BookMetadataCache::BookMetadata& bookMetadata) {
+  std::string contentOpfFilePath;
+  if (!findContentOpfFile(&contentOpfFilePath)) {
+    Serial.printf("[%lu] [EBP] Could not find content.opf in zip\n", millis());
+    return false;
+  }
+
+  contentBasePath = contentOpfFilePath.substr(0, contentOpfFilePath.find_last_of('/') + 1);
+
+  Serial.printf("[%lu] [EBP] Parsing content.opf: %s\n", millis(), contentOpfFilePath.c_str());
+
+  size_t contentOpfSize;
+  if (!getItemSize(contentOpfFilePath, &contentOpfSize)) {
+    Serial.printf("[%lu] [EBP] Could not get size of content.opf\n", millis());
+    return false;
+  }
+
+  ContentOpfParser opfParser(getCachePath(), getBasePath(), contentOpfSize, bookMetadataCache.get());
+  if (!opfParser.setup()) {
+    Serial.printf("[%lu] [EBP] Could not setup content.opf parser\n", millis());
+    return false;
+  }
+
+  if (!readItemContentsToStream(contentOpfFilePath, opfParser, 1024)) {
+    Serial.printf("[%lu] [EBP] Could not read content.opf\n", millis());
+    return false;
+  }
+
+  // Grab data from opfParser into epub
+  bookMetadata.title = opfParser.title;
+  bookMetadata.author = opfParser.author;
+  bookMetadata.language = opfParser.language;
+  bookMetadata.coverItemHref = opfParser.coverItemHref;
+  bookMetadata.textReferenceHref = opfParser.textReferenceHref;
+
+  if (!opfParser.tocNcxPath.empty()) {
+    tocNcxItem = opfParser.tocNcxPath;
+  }
+
+  if (!opfParser.tocNavPath.empty()) {
+    tocNavItem = opfParser.tocNavPath;
+  }
+
+  Serial.printf("[%lu] [EBP] Successfully parsed content.opf\n", millis());
+  return true;
+}
+
+bool Epub::parseTocNcxFile() const {
   // the ncx file should have been specified in the content.opf file
   if (tocNcxItem.empty()) {
-    Serial.println("No ncx file specified");
+    Serial.printf("[%lu] [EBP] No ncx file specified\n", millis());
     return false;
   }
 
-  const auto ncxData = reinterpret_cast<char*>(zip.readFileToMemory(tocNcxItem.c_str(), nullptr, true));
-  if (!ncxData) {
-    Serial.printf("Could not find %s\n", tocNcxItem.c_str());
+  Serial.printf("[%lu] [EBP] Parsing toc ncx file: %s\n", millis(), tocNcxItem.c_str());
+
+  const auto tmpNcxPath = getCachePath() + "/toc.ncx";
+  FsFile tempNcxFile;
+  if (!SdMan.openFileForWrite("EBP", tmpNcxPath, tempNcxFile)) {
+    return false;
+  }
+  readItemContentsToStream(tocNcxItem, tempNcxFile, 1024);
+  tempNcxFile.close();
+  if (!SdMan.openFileForRead("EBP", tmpNcxPath, tempNcxFile)) {
+    return false;
+  }
+  const auto ncxSize = tempNcxFile.size();
+
+  TocNcxParser ncxParser(contentBasePath, ncxSize, bookMetadataCache.get());
+
+  if (!ncxParser.setup()) {
+    Serial.printf("[%lu] [EBP] Could not setup toc ncx parser\n", millis());
+    tempNcxFile.close();
     return false;
   }
 
-  // Parse the Toc contents
-  tinyxml2::XMLDocument doc;
-  const auto result = doc.Parse(ncxData);
-  free(ncxData);
-
-  if (result != tinyxml2::XML_SUCCESS) {
-    Serial.printf("Error parsing toc %s\n", tinyxml2::XMLDocument::ErrorIDToName(result));
+  const auto ncxBuffer = static_cast<uint8_t*>(malloc(1024));
+  if (!ncxBuffer) {
+    Serial.printf("[%lu] [EBP] Could not allocate memory for toc ncx parser\n", millis());
+    tempNcxFile.close();
     return false;
   }
 
-  const auto ncx = doc.FirstChildElement("ncx");
-  if (!ncx) {
-    Serial.println("Could not find first child ncx in toc");
-    return false;
+  while (tempNcxFile.available()) {
+    const auto readSize = tempNcxFile.read(ncxBuffer, 1024);
+    if (readSize == 0) break;
+    const auto processedSize = ncxParser.write(ncxBuffer, readSize);
+
+    if (processedSize != readSize) {
+      Serial.printf("[%lu] [EBP] Could not process all toc ncx data\n", millis());
+      free(ncxBuffer);
+      tempNcxFile.close();
+      return false;
+    }
   }
 
-  const auto navMap = ncx->FirstChildElement("navMap");
-  if (!navMap) {
-    Serial.println("Could not find navMap child in ncx");
-    return false;
-  }
+  free(ncxBuffer);
+  tempNcxFile.close();
+  SdMan.remove(tmpNcxPath.c_str());
 
-  recursivelyParseNavMap(navMap->FirstChildElement("navPoint"));
+  Serial.printf("[%lu] [EBP] Parsed TOC items\n", millis());
   return true;
 }
 
-void Epub::recursivelyParseNavMap(tinyxml2::XMLElement* element) {
-  // Fills toc map
-  while (element) {
-    std::string navTitle = element->FirstChildElement("navLabel")->FirstChildElement("text")->FirstChild()->Value();
-    const auto content = element->FirstChildElement("content");
-    std::string href = contentBasePath + content->Attribute("src");
-    // split the href on the # to get the href and the anchor
-    const size_t pos = href.find('#');
-    std::string anchor;
-
-    if (pos != std::string::npos) {
-      anchor = href.substr(pos + 1);
-      href = href.substr(0, pos);
-    }
-
-    toc.emplace_back(navTitle, href, anchor, 0);
-
-    tinyxml2::XMLElement* nestedNavPoint = element->FirstChildElement("navPoint");
-    if (nestedNavPoint) {
-      recursivelyParseNavMap(nestedNavPoint);
-    }
-    element = element->NextSiblingElement("navPoint");
+bool Epub::parseTocNavFile() const {
+  // the nav file should have been specified in the content.opf file (EPUB 3)
+  if (tocNavItem.empty()) {
+    Serial.printf("[%lu] [EBP] No nav file specified\n", millis());
+    return false;
   }
+
+  Serial.printf("[%lu] [EBP] Parsing toc nav file: %s\n", millis(), tocNavItem.c_str());
+
+  const auto tmpNavPath = getCachePath() + "/toc.nav";
+  FsFile tempNavFile;
+  if (!SdMan.openFileForWrite("EBP", tmpNavPath, tempNavFile)) {
+    return false;
+  }
+  readItemContentsToStream(tocNavItem, tempNavFile, 1024);
+  tempNavFile.close();
+  if (!SdMan.openFileForRead("EBP", tmpNavPath, tempNavFile)) {
+    return false;
+  }
+  const auto navSize = tempNavFile.size();
+
+  // Note: We can't use `contentBasePath` here as the nav file may be in a different folder to the content.opf
+  // and the HTMLX nav file will have hrefs relative to itself
+  const std::string navContentBasePath = tocNavItem.substr(0, tocNavItem.find_last_of('/') + 1);
+  TocNavParser navParser(navContentBasePath, navSize, bookMetadataCache.get());
+
+  if (!navParser.setup()) {
+    Serial.printf("[%lu] [EBP] Could not setup toc nav parser\n", millis());
+    return false;
+  }
+
+  const auto navBuffer = static_cast<uint8_t*>(malloc(1024));
+  if (!navBuffer) {
+    Serial.printf("[%lu] [EBP] Could not allocate memory for toc nav parser\n", millis());
+    return false;
+  }
+
+  while (tempNavFile.available()) {
+    const auto readSize = tempNavFile.read(navBuffer, 1024);
+    const auto processedSize = navParser.write(navBuffer, readSize);
+
+    if (processedSize != readSize) {
+      Serial.printf("[%lu] [EBP] Could not process all toc nav data\n", millis());
+      free(navBuffer);
+      tempNavFile.close();
+      return false;
+    }
+  }
+
+  free(navBuffer);
+  tempNavFile.close();
+  SdMan.remove(tmpNavPath.c_str());
+
+  Serial.printf("[%lu] [EBP] Parsed TOC nav items\n", millis());
+  return true;
 }
 
 // load in the meta data for the epub file
-bool Epub::load() {
-  ZipFile zip("/sd" + filepath);
+bool Epub::load(const bool buildIfMissing) {
+  Serial.printf("[%lu] [EBP] Loading ePub: %s\n", millis(), filepath.c_str());
 
-  std::string contentOpfFile;
-  if (!findContentOpfFile(zip, contentOpfFile)) {
-    Serial.println("Could not open ePub");
+  // Initialize spine/TOC cache
+  bookMetadataCache.reset(new BookMetadataCache(cachePath));
+
+  // Try to load existing cache first
+  if (bookMetadataCache->load()) {
+    Serial.printf("[%lu] [EBP] Loaded ePub: %s\n", millis(), filepath.c_str());
+    return true;
+  }
+
+  // If we didn't load from cache above and we aren't allowed to build, fail now
+  if (!buildIfMissing) {
     return false;
   }
 
-  contentBasePath = contentOpfFile.substr(0, contentOpfFile.find_last_of('/') + 1);
+  // Cache doesn't exist or is invalid, build it
+  Serial.printf("[%lu] [EBP] Cache not found, building spine/TOC cache\n", millis());
+  setupCacheDir();
 
-  if (!parseContentOpf(zip, contentOpfFile)) {
+  const uint32_t indexingStart = millis();
+
+  // Begin building cache - stream entries to disk immediately
+  if (!bookMetadataCache->beginWrite()) {
+    Serial.printf("[%lu] [EBP] Could not begin writing cache\n", millis());
     return false;
   }
 
-  if (!parseTocNcxFile(zip)) {
+  // OPF Pass
+  const uint32_t opfStart = millis();
+  BookMetadataCache::BookMetadata bookMetadata;
+  if (!bookMetadataCache->beginContentOpfPass()) {
+    Serial.printf("[%lu] [EBP] Could not begin writing content.opf pass\n", millis());
+    return false;
+  }
+  if (!parseContentOpf(bookMetadata)) {
+    Serial.printf("[%lu] [EBP] Could not parse content.opf\n", millis());
+    return false;
+  }
+  if (!bookMetadataCache->endContentOpfPass()) {
+    Serial.printf("[%lu] [EBP] Could not end writing content.opf pass\n", millis());
+    return false;
+  }
+  Serial.printf("[%lu] [EBP] OPF pass completed in %lu ms\n", millis(), millis() - opfStart);
+
+  // TOC Pass - try EPUB 3 nav first, fall back to NCX
+  const uint32_t tocStart = millis();
+  if (!bookMetadataCache->beginTocPass()) {
+    Serial.printf("[%lu] [EBP] Could not begin writing toc pass\n", millis());
     return false;
   }
 
+  bool tocParsed = false;
+
+  // Try EPUB 3 nav document first (preferred)
+  if (!tocNavItem.empty()) {
+    Serial.printf("[%lu] [EBP] Attempting to parse EPUB 3 nav document\n", millis());
+    tocParsed = parseTocNavFile();
+  }
+
+  // Fall back to NCX if nav parsing failed or wasn't available
+  if (!tocParsed && !tocNcxItem.empty()) {
+    Serial.printf("[%lu] [EBP] Falling back to NCX TOC\n", millis());
+    tocParsed = parseTocNcxFile();
+  }
+
+  if (!tocParsed) {
+    Serial.printf("[%lu] [EBP] Warning: Could not parse any TOC format\n", millis());
+    // Continue anyway - book will work without TOC
+  }
+
+  if (!bookMetadataCache->endTocPass()) {
+    Serial.printf("[%lu] [EBP] Could not end writing toc pass\n", millis());
+    return false;
+  }
+  Serial.printf("[%lu] [EBP] TOC pass completed in %lu ms\n", millis(), millis() - tocStart);
+
+  // Close the cache files
+  if (!bookMetadataCache->endWrite()) {
+    Serial.printf("[%lu] [EBP] Could not end writing cache\n", millis());
+    return false;
+  }
+
+  // Build final book.bin
+  const uint32_t buildStart = millis();
+  if (!bookMetadataCache->buildBookBin(filepath, bookMetadata)) {
+    Serial.printf("[%lu] [EBP] Could not update mappings and sizes\n", millis());
+    return false;
+  }
+  Serial.printf("[%lu] [EBP] buildBookBin completed in %lu ms\n", millis(), millis() - buildStart);
+  Serial.printf("[%lu] [EBP] Total indexing completed in %lu ms\n", millis(), millis() - indexingStart);
+
+  if (!bookMetadataCache->cleanupTmpFiles()) {
+    Serial.printf("[%lu] [EBP] Could not cleanup tmp files - ignoring\n", millis());
+  }
+
+  // Reload the cache from disk so it's in the correct state
+  bookMetadataCache.reset(new BookMetadataCache(cachePath));
+  if (!bookMetadataCache->load()) {
+    Serial.printf("[%lu] [EBP] Failed to reload cache after writing\n", millis());
+    return false;
+  }
+
+  Serial.printf("[%lu] [EBP] Loaded ePub: %s\n", millis(), filepath.c_str());
   return true;
 }
 
-void Epub::clearCache() const { SD.rmdir(cachePath.c_str()); }
+bool Epub::clearCache() const {
+  if (!SdMan.exists(cachePath.c_str())) {
+    Serial.printf("[%lu] [EPB] Cache does not exist, no action needed\n", millis());
+    return true;
+  }
+
+  if (!SdMan.removeDir(cachePath.c_str())) {
+    Serial.printf("[%lu] [EPB] Failed to clear cache\n", millis());
+    return false;
+  }
+
+  Serial.printf("[%lu] [EPB] Cache cleared successfully\n", millis());
+  return true;
+}
 
 void Epub::setupCacheDir() const {
-  if (SD.exists(cachePath.c_str())) {
+  if (SdMan.exists(cachePath.c_str())) {
     return;
   }
 
-  // Loop over each segment of the cache path and create directories as needed
-  for (size_t i = 1; i < cachePath.length(); i++) {
-    if (cachePath[i] == '/') {
-      SD.mkdir(cachePath.substr(0, i).c_str());
-    }
-  }
-  SD.mkdir(cachePath.c_str());
+  SdMan.mkdir(cachePath.c_str());
 }
 
 const std::string& Epub::getCachePath() const { return cachePath; }
 
 const std::string& Epub::getPath() const { return filepath; }
 
-const std::string& Epub::getTitle() const { return title; }
-
-const std::string& Epub::getCoverImageItem() const { return coverImageItem; }
-
-std::string normalisePath(const std::string& path) {
-  std::vector<std::string> components;
-  std::string component;
-
-  for (const auto c : path) {
-    if (c == '/') {
-      if (!component.empty()) {
-        if (component == "..") {
-          if (!components.empty()) {
-            components.pop_back();
-          }
-        } else {
-          components.push_back(component);
-        }
-        component.clear();
-      }
-    } else {
-      component += c;
-    }
+const std::string& Epub::getTitle() const {
+  static std::string blank;
+  if (!bookMetadataCache || !bookMetadataCache->isLoaded()) {
+    return blank;
   }
 
-  if (!component.empty()) {
-    components.push_back(component);
-  }
-
-  std::string result;
-  for (const auto& c : components) {
-    if (!result.empty()) {
-      result += "/";
-    }
-    result += c;
-  }
-
-  return result;
+  return bookMetadataCache->coreMetadata.title;
 }
 
-uint8_t* Epub::readItemContentsToBytes(const std::string& itemHref, size_t* size, bool trailingNullByte) const {
-  const ZipFile zip("/sd" + filepath);
-  const std::string path = normalisePath(itemHref);
+const std::string& Epub::getAuthor() const {
+  static std::string blank;
+  if (!bookMetadataCache || !bookMetadataCache->isLoaded()) {
+    return blank;
+  }
 
-  const auto content = zip.readFileToMemory(path.c_str(), size, trailingNullByte);
+  return bookMetadataCache->coreMetadata.author;
+}
+
+const std::string& Epub::getLanguage() const {
+  static std::string blank;
+  if (!bookMetadataCache || !bookMetadataCache->isLoaded()) {
+    return blank;
+  }
+
+  return bookMetadataCache->coreMetadata.language;
+}
+
+std::string Epub::getCoverBmpPath(bool cropped) const {
+  const auto coverFileName = std::string("cover") + (cropped ? "_crop" : "");
+  return cachePath + "/" + coverFileName + ".bmp";
+}
+
+bool Epub::generateCoverBmp(bool cropped) const {
+  // Already generated, return true
+  if (SdMan.exists(getCoverBmpPath(cropped).c_str())) {
+    return true;
+  }
+
+  if (!bookMetadataCache || !bookMetadataCache->isLoaded()) {
+    Serial.printf("[%lu] [EBP] Cannot generate cover BMP, cache not loaded\n", millis());
+    return false;
+  }
+
+  const auto coverImageHref = bookMetadataCache->coreMetadata.coverItemHref;
+  if (coverImageHref.empty()) {
+    Serial.printf("[%lu] [EBP] No known cover image\n", millis());
+    return false;
+  }
+
+  if (coverImageHref.substr(coverImageHref.length() - 4) == ".jpg" ||
+      coverImageHref.substr(coverImageHref.length() - 5) == ".jpeg") {
+    Serial.printf("[%lu] [EBP] Generating BMP from JPG cover image (%s mode)\n", millis(), cropped ? "cropped" : "fit");
+    const auto coverJpgTempPath = getCachePath() + "/.cover.jpg";
+
+    FsFile coverJpg;
+    if (!SdMan.openFileForWrite("EBP", coverJpgTempPath, coverJpg)) {
+      return false;
+    }
+    readItemContentsToStream(coverImageHref, coverJpg, 1024);
+    coverJpg.close();
+
+    if (!SdMan.openFileForRead("EBP", coverJpgTempPath, coverJpg)) {
+      return false;
+    }
+
+    FsFile coverBmp;
+    if (!SdMan.openFileForWrite("EBP", getCoverBmpPath(cropped), coverBmp)) {
+      coverJpg.close();
+      return false;
+    }
+    const bool success = JpegToBmpConverter::jpegFileToBmpStream(coverJpg, coverBmp, cropped);
+    coverJpg.close();
+    coverBmp.close();
+    SdMan.remove(coverJpgTempPath.c_str());
+
+    if (!success) {
+      Serial.printf("[%lu] [EBP] Failed to generate BMP from JPG cover image\n", millis());
+      SdMan.remove(getCoverBmpPath(cropped).c_str());
+    }
+    Serial.printf("[%lu] [EBP] Generated BMP from JPG cover image, success: %s\n", millis(), success ? "yes" : "no");
+    return success;
+  } else {
+    Serial.printf("[%lu] [EBP] Cover image is not a JPG, skipping\n", millis());
+  }
+
+  return false;
+}
+
+std::string Epub::getThumbBmpPath() const { return cachePath + "/thumb.bmp"; }
+
+bool Epub::generateThumbBmp() const {
+  // Already generated, return true
+  if (SdMan.exists(getThumbBmpPath().c_str())) {
+    return true;
+  }
+
+  if (!bookMetadataCache || !bookMetadataCache->isLoaded()) {
+    Serial.printf("[%lu] [EBP] Cannot generate thumb BMP, cache not loaded\n", millis());
+    return false;
+  }
+
+  const auto coverImageHref = bookMetadataCache->coreMetadata.coverItemHref;
+  if (coverImageHref.empty()) {
+    Serial.printf("[%lu] [EBP] No known cover image for thumbnail\n", millis());
+    return false;
+  }
+
+  if (coverImageHref.substr(coverImageHref.length() - 4) == ".jpg" ||
+      coverImageHref.substr(coverImageHref.length() - 5) == ".jpeg") {
+    Serial.printf("[%lu] [EBP] Generating thumb BMP from JPG cover image\n", millis());
+    const auto coverJpgTempPath = getCachePath() + "/.cover.jpg";
+
+    FsFile coverJpg;
+    if (!SdMan.openFileForWrite("EBP", coverJpgTempPath, coverJpg)) {
+      return false;
+    }
+    readItemContentsToStream(coverImageHref, coverJpg, 1024);
+    coverJpg.close();
+
+    if (!SdMan.openFileForRead("EBP", coverJpgTempPath, coverJpg)) {
+      return false;
+    }
+
+    FsFile thumbBmp;
+    if (!SdMan.openFileForWrite("EBP", getThumbBmpPath(), thumbBmp)) {
+      coverJpg.close();
+      return false;
+    }
+    // Use smaller target size for Continue Reading card (half of screen: 240x400)
+    // Generate 1-bit BMP for fast home screen rendering (no gray passes needed)
+    constexpr int THUMB_TARGET_WIDTH = 240;
+    constexpr int THUMB_TARGET_HEIGHT = 400;
+    const bool success = JpegToBmpConverter::jpegFileTo1BitBmpStreamWithSize(coverJpg, thumbBmp, THUMB_TARGET_WIDTH,
+                                                                             THUMB_TARGET_HEIGHT);
+    coverJpg.close();
+    thumbBmp.close();
+    SdMan.remove(coverJpgTempPath.c_str());
+
+    if (!success) {
+      Serial.printf("[%lu] [EBP] Failed to generate thumb BMP from JPG cover image\n", millis());
+      SdMan.remove(getThumbBmpPath().c_str());
+    }
+    Serial.printf("[%lu] [EBP] Generated thumb BMP from JPG cover image, success: %s\n", millis(),
+                  success ? "yes" : "no");
+    return success;
+  } else {
+    Serial.printf("[%lu] [EBP] Cover image is not a JPG, skipping thumbnail\n", millis());
+  }
+
+  return false;
+}
+
+uint8_t* Epub::readItemContentsToBytes(const std::string& itemHref, size_t* size, const bool trailingNullByte) const {
+  if (itemHref.empty()) {
+    Serial.printf("[%lu] [EBP] Failed to read item, empty href\n", millis());
+    return nullptr;
+  }
+
+  const std::string path = FsHelpers::normalisePath(itemHref);
+
+  const auto content = ZipFile(filepath).readFileToMemory(path.c_str(), size, trailingNullByte);
   if (!content) {
-    Serial.printf("Failed to read item %s\n", path.c_str());
+    Serial.printf("[%lu] [EBP] Failed to read item %s\n", millis(), path.c_str());
     return nullptr;
   }
 
@@ -322,59 +510,133 @@ uint8_t* Epub::readItemContentsToBytes(const std::string& itemHref, size_t* size
 }
 
 bool Epub::readItemContentsToStream(const std::string& itemHref, Print& out, const size_t chunkSize) const {
-  const ZipFile zip("/sd" + filepath);
-  const std::string path = normalisePath(itemHref);
-
-  return zip.readFileToStream(path.c_str(), out, chunkSize);
-}
-
-int Epub::getSpineItemsCount() const { return spine.size(); }
-
-std::string& Epub::getSpineItem(const int spineIndex) {
-  if (spineIndex < 0 || spineIndex >= spine.size()) {
-    Serial.printf("getSpineItem index:%d is out of range\n", spineIndex);
-    return spine.at(0).second;
+  if (itemHref.empty()) {
+    Serial.printf("[%lu] [EBP] Failed to read item, empty href\n", millis());
+    return false;
   }
 
-  return spine.at(spineIndex).second;
+  const std::string path = FsHelpers::normalisePath(itemHref);
+  return ZipFile(filepath).readFileToStream(path.c_str(), out, chunkSize);
 }
 
-EpubTocEntry& Epub::getTocItem(const int tocTndex) {
-  if (tocTndex < 0 || tocTndex >= toc.size()) {
-    Serial.printf("getTocItem index:%d is out of range\n", tocTndex);
-    return toc.at(0);
+bool Epub::getItemSize(const std::string& itemHref, size_t* size) const {
+  const std::string path = FsHelpers::normalisePath(itemHref);
+  return ZipFile(filepath).getInflatedFileSize(path.c_str(), size);
+}
+
+int Epub::getSpineItemsCount() const {
+  if (!bookMetadataCache || !bookMetadataCache->isLoaded()) {
+    return 0;
+  }
+  return bookMetadataCache->getSpineCount();
+}
+
+size_t Epub::getCumulativeSpineItemSize(const int spineIndex) const { return getSpineItem(spineIndex).cumulativeSize; }
+
+BookMetadataCache::SpineEntry Epub::getSpineItem(const int spineIndex) const {
+  if (!bookMetadataCache || !bookMetadataCache->isLoaded()) {
+    Serial.printf("[%lu] [EBP] getSpineItem called but cache not loaded\n", millis());
+    return {};
   }
 
-  return toc.at(tocTndex);
+  if (spineIndex < 0 || spineIndex >= bookMetadataCache->getSpineCount()) {
+    Serial.printf("[%lu] [EBP] getSpineItem index:%d is out of range\n", millis(), spineIndex);
+    return bookMetadataCache->getSpineEntry(0);
+  }
+
+  return bookMetadataCache->getSpineEntry(spineIndex);
 }
 
-int Epub::getTocItemsCount() const { return toc.size(); }
+BookMetadataCache::TocEntry Epub::getTocItem(const int tocIndex) const {
+  if (!bookMetadataCache || !bookMetadataCache->isLoaded()) {
+    Serial.printf("[%lu] [EBP] getTocItem called but cache not loaded\n", millis());
+    return {};
+  }
+
+  if (tocIndex < 0 || tocIndex >= bookMetadataCache->getTocCount()) {
+    Serial.printf("[%lu] [EBP] getTocItem index:%d is out of range\n", millis(), tocIndex);
+    return {};
+  }
+
+  return bookMetadataCache->getTocEntry(tocIndex);
+}
+
+int Epub::getTocItemsCount() const {
+  if (!bookMetadataCache || !bookMetadataCache->isLoaded()) {
+    return 0;
+  }
+
+  return bookMetadataCache->getTocCount();
+}
 
 // work out the section index for a toc index
 int Epub::getSpineIndexForTocIndex(const int tocIndex) const {
-  // the toc entry should have an href that matches the spine item
-  // so we can find the spine index by looking for the href
-  for (int i = 0; i < spine.size(); i++) {
-    if (spine[i].second == toc[tocIndex].href) {
+  if (!bookMetadataCache || !bookMetadataCache->isLoaded()) {
+    Serial.printf("[%lu] [EBP] getSpineIndexForTocIndex called but cache not loaded\n", millis());
+    return 0;
+  }
+
+  if (tocIndex < 0 || tocIndex >= bookMetadataCache->getTocCount()) {
+    Serial.printf("[%lu] [EBP] getSpineIndexForTocIndex: tocIndex %d out of range\n", millis(), tocIndex);
+    return 0;
+  }
+
+  const int spineIndex = bookMetadataCache->getTocEntry(tocIndex).spineIndex;
+  if (spineIndex < 0) {
+    Serial.printf("[%lu] [EBP] Section not found for TOC index %d\n", millis(), tocIndex);
+    return 0;
+  }
+
+  return spineIndex;
+}
+
+int Epub::getTocIndexForSpineIndex(const int spineIndex) const { return getSpineItem(spineIndex).tocIndex; }
+
+size_t Epub::getBookSize() const {
+  if (!bookMetadataCache || !bookMetadataCache->isLoaded() || bookMetadataCache->getSpineCount() == 0) {
+    return 0;
+  }
+  return getCumulativeSpineItemSize(getSpineItemsCount() - 1);
+}
+
+int Epub::getSpineIndexForTextReference() const {
+  if (!bookMetadataCache || !bookMetadataCache->isLoaded()) {
+    Serial.printf("[%lu] [EBP] getSpineIndexForTextReference called but cache not loaded\n", millis());
+    return 0;
+  }
+  Serial.printf("[%lu] [ERS] Core Metadata: cover(%d)=%s, textReference(%d)=%s\n", millis(),
+                bookMetadataCache->coreMetadata.coverItemHref.size(),
+                bookMetadataCache->coreMetadata.coverItemHref.c_str(),
+                bookMetadataCache->coreMetadata.textReferenceHref.size(),
+                bookMetadataCache->coreMetadata.textReferenceHref.c_str());
+
+  if (bookMetadataCache->coreMetadata.textReferenceHref.empty()) {
+    // there was no textReference in epub, so we return 0 (the first chapter)
+    return 0;
+  }
+
+  // loop through spine items to get the correct index matching the text href
+  for (size_t i = 0; i < getSpineItemsCount(); i++) {
+    if (getSpineItem(i).href == bookMetadataCache->coreMetadata.textReferenceHref) {
+      Serial.printf("[%lu] [ERS] Text reference %s found at index %d\n", millis(),
+                    bookMetadataCache->coreMetadata.textReferenceHref.c_str(), i);
       return i;
     }
   }
-
-  Serial.println("Section not found");
-  // not found - default to the start of the book
+  // This should not happen, as we checked for empty textReferenceHref earlier
+  Serial.printf("[%lu] [EBP] Section not found for text reference\n", millis());
   return 0;
 }
 
-int Epub::getTocIndexForSpineIndex(const int spineIndex) const {
-  // the toc entry should have an href that matches the spine item
-  // so we can find the toc index by looking for the href
-  for (int i = 0; i < toc.size(); i++) {
-    if (toc[i].href == spine[spineIndex].second) {
-      return i;
-    }
+// Calculate progress in book (returns 0.0-1.0)
+float Epub::calculateProgress(const int currentSpineIndex, const float currentSpineRead) const {
+  const size_t bookSize = getBookSize();
+  if (bookSize == 0) {
+    return 0.0f;
   }
-
-  Serial.println("TOC item not found");
-  // not found - default to first item
-  return 0;
+  const size_t prevChapterSize = (currentSpineIndex >= 1) ? getCumulativeSpineItemSize(currentSpineIndex - 1) : 0;
+  const size_t curChapterSize = getCumulativeSpineItemSize(currentSpineIndex) - prevChapterSize;
+  const float sectionProgSize = currentSpineRead * static_cast<float>(curChapterSize);
+  const float totalProgress = static_cast<float>(prevChapterSize) + sectionProgSize;
+  return totalProgress / static_cast<float>(bookSize);
 }

lib/Epub/Epub.h

@@ -1,46 +1,34 @@
 #pragma once
-#include <HardwareSerial.h>
-#include <tinyxml2.h>
 
+#include <Print.h>
+
+#include <memory>
 #include <string>
 #include <unordered_map>
 #include <vector>
 
+#include "Epub/BookMetadataCache.h"
+
 class ZipFile;
 
-class EpubTocEntry {
- public:
-  std::string title;
-  std::string href;
-  std::string anchor;
-  int level;
-  EpubTocEntry(std::string title, std::string href, std::string anchor, const int level)
-      : title(std::move(title)), href(std::move(href)), anchor(std::move(anchor)), level(level) {}
-};
-
 class Epub {
-  // the title read from the EPUB meta data
-  std::string title;
-  // the cover image
-  std::string coverImageItem;
-  // the ncx file
+  // the ncx file (EPUB 2)
   std::string tocNcxItem;
+  // the nav file (EPUB 3)
+  std::string tocNavItem;
   // where is the EPUBfile?
   std::string filepath;
-  // the spine of the EPUB file
-  std::vector<std::pair<std::string, std::string>> spine;
-  // the toc of the EPUB file
-  std::vector<EpubTocEntry> toc;
   // the base path for items in the EPUB file
   std::string contentBasePath;
   // Uniq cache key based on filepath
   std::string cachePath;
+  // Spine and TOC cache
+  std::unique_ptr<BookMetadataCache> bookMetadataCache;
 
-  // find the path for the content.opf file
-  static bool findContentOpfFile(const ZipFile& zip, std::string& contentOpfFile);
-  bool parseContentOpf(ZipFile& zip, std::string& content_opf_file);
-  bool parseTocNcxFile(const ZipFile& zip);
-  void recursivelyParseNavMap(tinyxml2::XMLElement* element);
+  bool findContentOpfFile(std::string* contentOpfFile) const;
+  bool parseContentOpf(BookMetadataCache::BookMetadata& bookMetadata);
+  bool parseTocNcxFile() const;
+  bool parseTocNavFile() const;
 
  public:
   explicit Epub(std::string filepath, const std::string& cacheDir) : filepath(std::move(filepath)) {
@@ -49,20 +37,31 @@ class Epub {
   }
   ~Epub() = default;
   std::string& getBasePath() { return contentBasePath; }
-  bool load();
-  void clearCache() const;
+  bool load(bool buildIfMissing = true);
+  bool clearCache() const;
   void setupCacheDir() const;
   const std::string& getCachePath() const;
   const std::string& getPath() const;
   const std::string& getTitle() const;
-  const std::string& getCoverImageItem() const;
+  const std::string& getAuthor() const;
+  const std::string& getLanguage() const;
+  std::string getCoverBmpPath(bool cropped = false) const;
+  bool generateCoverBmp(bool cropped = false) const;
+  std::string getThumbBmpPath() const;
+  bool generateThumbBmp() const;
   uint8_t* readItemContentsToBytes(const std::string& itemHref, size_t* size = nullptr,
                                    bool trailingNullByte = false) const;
   bool readItemContentsToStream(const std::string& itemHref, Print& out, size_t chunkSize) const;
-  std::string& getSpineItem(int spineIndex);
+  bool getItemSize(const std::string& itemHref, size_t* size) const;
+  BookMetadataCache::SpineEntry getSpineItem(int spineIndex) const;
+  BookMetadataCache::TocEntry getTocItem(int tocIndex) const;
   int getSpineItemsCount() const;
-  EpubTocEntry& getTocItem(int tocTndex);
   int getTocItemsCount() const;
   int getSpineIndexForTocIndex(int tocIndex) const;
   int getTocIndexForSpineIndex(int spineIndex) const;
+  size_t getCumulativeSpineItemSize(int spineIndex) const;
+  int getSpineIndexForTextReference() const;
+
+  size_t getBookSize() const;
+  float calculateProgress(int currentSpineIndex, float currentSpineRead) const;
 };

lib/Epub/Epub/BookMetadataCache.cpp

@@ -0,0 +1,448 @@
+#include "BookMetadataCache.h"
+
+#include <HardwareSerial.h>
+#include <Serialization.h>
+#include <ZipFile.h>
+
+#include <vector>
+
+#include "FsHelpers.h"
+
+namespace {
+constexpr uint8_t BOOK_CACHE_VERSION = 5;
+constexpr char bookBinFile[] = "/book.bin";
+constexpr char tmpSpineBinFile[] = "/spine.bin.tmp";
+constexpr char tmpTocBinFile[] = "/toc.bin.tmp";
+}  // namespace
+
+/* ============= WRITING / BUILDING FUNCTIONS ================ */
+
+bool BookMetadataCache::beginWrite() {
+  buildMode = true;
+  spineCount = 0;
+  tocCount = 0;
+  Serial.printf("[%lu] [BMC] Entering write mode\n", millis());
+  return true;
+}
+
+bool BookMetadataCache::beginContentOpfPass() {
+  Serial.printf("[%lu] [BMC] Beginning content opf pass\n", millis());
+
+  // Open spine file for writing
+  return SdMan.openFileForWrite("BMC", cachePath + tmpSpineBinFile, spineFile);
+}
+
+bool BookMetadataCache::endContentOpfPass() {
+  spineFile.close();
+  return true;
+}
+
+bool BookMetadataCache::beginTocPass() {
+  Serial.printf("[%lu] [BMC] Beginning toc pass\n", millis());
+
+  if (!SdMan.openFileForRead("BMC", cachePath + tmpSpineBinFile, spineFile)) {
+    return false;
+  }
+  if (!SdMan.openFileForWrite("BMC", cachePath + tmpTocBinFile, tocFile)) {
+    spineFile.close();
+    return false;
+  }
+
+  if (spineCount >= LARGE_SPINE_THRESHOLD) {
+    spineHrefIndex.clear();
+    spineHrefIndex.reserve(spineCount);
+    spineFile.seek(0);
+    for (int i = 0; i < spineCount; i++) {
+      auto entry = readSpineEntry(spineFile);
+      SpineHrefIndexEntry idx;
+      idx.hrefHash = fnvHash64(entry.href);
+      idx.hrefLen = static_cast<uint16_t>(entry.href.size());
+      idx.spineIndex = static_cast<int16_t>(i);
+      spineHrefIndex.push_back(idx);
+    }
+    std::sort(spineHrefIndex.begin(), spineHrefIndex.end(),
+              [](const SpineHrefIndexEntry& a, const SpineHrefIndexEntry& b) {
+                return a.hrefHash < b.hrefHash || (a.hrefHash == b.hrefHash && a.hrefLen < b.hrefLen);
+              });
+    spineFile.seek(0);
+    useSpineHrefIndex = true;
+    Serial.printf("[%lu] [BMC] Using fast index for %d spine items\n", millis(), spineCount);
+  } else {
+    useSpineHrefIndex = false;
+  }
+
+  return true;
+}
+
+bool BookMetadataCache::endTocPass() {
+  tocFile.close();
+  spineFile.close();
+
+  spineHrefIndex.clear();
+  spineHrefIndex.shrink_to_fit();
+  useSpineHrefIndex = false;
+
+  return true;
+}
+
+bool BookMetadataCache::endWrite() {
+  if (!buildMode) {
+    Serial.printf("[%lu] [BMC] endWrite called but not in build mode\n", millis());
+    return false;
+  }
+
+  buildMode = false;
+  Serial.printf("[%lu] [BMC] Wrote %d spine, %d TOC entries\n", millis(), spineCount, tocCount);
+  return true;
+}
+
+bool BookMetadataCache::buildBookBin(const std::string& epubPath, const BookMetadata& metadata) {
+  // Open all three files, writing to meta, reading from spine and toc
+  if (!SdMan.openFileForWrite("BMC", cachePath + bookBinFile, bookFile)) {
+    return false;
+  }
+
+  if (!SdMan.openFileForRead("BMC", cachePath + tmpSpineBinFile, spineFile)) {
+    bookFile.close();
+    return false;
+  }
+
+  if (!SdMan.openFileForRead("BMC", cachePath + tmpTocBinFile, tocFile)) {
+    bookFile.close();
+    spineFile.close();
+    return false;
+  }
+
+  constexpr uint32_t headerASize =
+      sizeof(BOOK_CACHE_VERSION) + /* LUT Offset */ sizeof(uint32_t) + sizeof(spineCount) + sizeof(tocCount);
+  const uint32_t metadataSize = metadata.title.size() + metadata.author.size() + metadata.language.size() +
+                                metadata.coverItemHref.size() + metadata.textReferenceHref.size() +
+                                sizeof(uint32_t) * 5;
+  const uint32_t lutSize = sizeof(uint32_t) * spineCount + sizeof(uint32_t) * tocCount;
+  const uint32_t lutOffset = headerASize + metadataSize;
+
+  // Header A
+  serialization::writePod(bookFile, BOOK_CACHE_VERSION);
+  serialization::writePod(bookFile, lutOffset);
+  serialization::writePod(bookFile, spineCount);
+  serialization::writePod(bookFile, tocCount);
+  // Metadata
+  serialization::writeString(bookFile, metadata.title);
+  serialization::writeString(bookFile, metadata.author);
+  serialization::writeString(bookFile, metadata.language);
+  serialization::writeString(bookFile, metadata.coverItemHref);
+  serialization::writeString(bookFile, metadata.textReferenceHref);
+
+  // Loop through spine entries, writing LUT positions
+  spineFile.seek(0);
+  for (int i = 0; i < spineCount; i++) {
+    uint32_t pos = spineFile.position();
+    auto spineEntry = readSpineEntry(spineFile);
+    serialization::writePod(bookFile, pos + lutOffset + lutSize);
+  }
+
+  // Loop through toc entries, writing LUT positions
+  tocFile.seek(0);
+  for (int i = 0; i < tocCount; i++) {
+    uint32_t pos = tocFile.position();
+    auto tocEntry = readTocEntry(tocFile);
+    serialization::writePod(bookFile, pos + lutOffset + lutSize + static_cast<uint32_t>(spineFile.position()));
+  }
+
+  // LUTs complete
+  // Loop through spines from spine file matching up TOC indexes, calculating cumulative size and writing to book.bin
+
+  // Build spineIndex->tocIndex mapping in one pass (O(n) instead of O(n*m))
+  std::vector<int16_t> spineToTocIndex(spineCount, -1);
+  tocFile.seek(0);
+  for (int j = 0; j < tocCount; j++) {
+    auto tocEntry = readTocEntry(tocFile);
+    if (tocEntry.spineIndex >= 0 && tocEntry.spineIndex < spineCount) {
+      if (spineToTocIndex[tocEntry.spineIndex] == -1) {
+        spineToTocIndex[tocEntry.spineIndex] = static_cast<int16_t>(j);
+      }
+    }
+  }
+
+  ZipFile zip(epubPath);
+  // Pre-open zip file to speed up size calculations
+  if (!zip.open()) {
+    Serial.printf("[%lu] [BMC] Could not open EPUB zip for size calculations\n", millis());
+    bookFile.close();
+    spineFile.close();
+    tocFile.close();
+    return false;
+  }
+  // NOTE: We intentionally skip calling loadAllFileStatSlims() here.
+  // For large EPUBs (2000+ chapters), pre-loading all ZIP central directory entries
+  // into memory causes OOM crashes on ESP32-C3's limited ~380KB RAM.
+  // Instead, for large books we use a one-pass batch lookup that scans the ZIP
+  // central directory once and matches against spine targets using hash comparison.
+  // This is O(n*log(m)) instead of O(n*m) while avoiding memory exhaustion.
+  // See: https://github.com/crosspoint-reader/crosspoint-reader/issues/134
+
+  std::vector<uint32_t> spineSizes;
+  bool useBatchSizes = false;
+
+  if (spineCount >= LARGE_SPINE_THRESHOLD) {
+    Serial.printf("[%lu] [BMC] Using batch size lookup for %d spine items\n", millis(), spineCount);
+
+    std::vector<ZipFile::SizeTarget> targets;
+    targets.reserve(spineCount);
+
+    spineFile.seek(0);
+    for (int i = 0; i < spineCount; i++) {
+      auto entry = readSpineEntry(spineFile);
+      std::string path = FsHelpers::normalisePath(entry.href);
+
+      ZipFile::SizeTarget t;
+      t.hash = ZipFile::fnvHash64(path.c_str(), path.size());
+      t.len = static_cast<uint16_t>(path.size());
+      t.index = static_cast<uint16_t>(i);
+      targets.push_back(t);
+    }
+
+    std::sort(targets.begin(), targets.end(), [](const ZipFile::SizeTarget& a, const ZipFile::SizeTarget& b) {
+      return a.hash < b.hash || (a.hash == b.hash && a.len < b.len);
+    });
+
+    spineSizes.resize(spineCount, 0);
+    int matched = zip.fillUncompressedSizes(targets, spineSizes);
+    Serial.printf("[%lu] [BMC] Batch lookup matched %d/%d spine items\n", millis(), matched, spineCount);
+
+    targets.clear();
+    targets.shrink_to_fit();
+
+    useBatchSizes = true;
+  }
+
+  uint32_t cumSize = 0;
+  spineFile.seek(0);
+  int lastSpineTocIndex = -1;
+  for (int i = 0; i < spineCount; i++) {
+    auto spineEntry = readSpineEntry(spineFile);
+
+    spineEntry.tocIndex = spineToTocIndex[i];
+
+    // Not a huge deal if we don't fine a TOC entry for the spine entry, this is expected behaviour for EPUBs
+    // Logging here is for debugging
+    if (spineEntry.tocIndex == -1) {
+      Serial.printf(
+          "[%lu] [BMC] Warning: Could not find TOC entry for spine item %d: %s, using title from last section\n",
+          millis(), i, spineEntry.href.c_str());
+      spineEntry.tocIndex = lastSpineTocIndex;
+    }
+    lastSpineTocIndex = spineEntry.tocIndex;
+
+    size_t itemSize = 0;
+    if (useBatchSizes) {
+      itemSize = spineSizes[i];
+      if (itemSize == 0) {
+        const std::string path = FsHelpers::normalisePath(spineEntry.href);
+        if (!zip.getInflatedFileSize(path.c_str(), &itemSize)) {
+          Serial.printf("[%lu] [BMC] Warning: Could not get size for spine item: %s\n", millis(), path.c_str());
+        }
+      }
+    } else {
+      const std::string path = FsHelpers::normalisePath(spineEntry.href);
+      if (!zip.getInflatedFileSize(path.c_str(), &itemSize)) {
+        Serial.printf("[%lu] [BMC] Warning: Could not get size for spine item: %s\n", millis(), path.c_str());
+      }
+    }
+
+    cumSize += itemSize;
+    spineEntry.cumulativeSize = cumSize;
+
+    // Write out spine data to book.bin
+    writeSpineEntry(bookFile, spineEntry);
+  }
+  // Close opened zip file
+  zip.close();
+
+  // Loop through toc entries from toc file writing to book.bin
+  tocFile.seek(0);
+  for (int i = 0; i < tocCount; i++) {
+    auto tocEntry = readTocEntry(tocFile);
+    writeTocEntry(bookFile, tocEntry);
+  }
+
+  bookFile.close();
+  spineFile.close();
+  tocFile.close();
+
+  Serial.printf("[%lu] [BMC] Successfully built book.bin\n", millis());
+  return true;
+}
+
+bool BookMetadataCache::cleanupTmpFiles() const {
+  if (SdMan.exists((cachePath + tmpSpineBinFile).c_str())) {
+    SdMan.remove((cachePath + tmpSpineBinFile).c_str());
+  }
+  if (SdMan.exists((cachePath + tmpTocBinFile).c_str())) {
+    SdMan.remove((cachePath + tmpTocBinFile).c_str());
+  }
+  return true;
+}
+
+uint32_t BookMetadataCache::writeSpineEntry(FsFile& file, const SpineEntry& entry) const {
+  const uint32_t pos = file.position();
+  serialization::writeString(file, entry.href);
+  serialization::writePod(file, entry.cumulativeSize);
+  serialization::writePod(file, entry.tocIndex);
+  return pos;
+}
+
+uint32_t BookMetadataCache::writeTocEntry(FsFile& file, const TocEntry& entry) const {
+  const uint32_t pos = file.position();
+  serialization::writeString(file, entry.title);
+  serialization::writeString(file, entry.href);
+  serialization::writeString(file, entry.anchor);
+  serialization::writePod(file, entry.level);
+  serialization::writePod(file, entry.spineIndex);
+  return pos;
+}
+
+// Note: for the LUT to be accurate, this **MUST** be called for all spine items before `addTocEntry` is ever called
+// this is because in this function we're marking positions of the items
+void BookMetadataCache::createSpineEntry(const std::string& href) {
+  if (!buildMode || !spineFile) {
+    Serial.printf("[%lu] [BMC] createSpineEntry called but not in build mode\n", millis());
+    return;
+  }
+
+  const SpineEntry entry(href, 0, -1);
+  writeSpineEntry(spineFile, entry);
+  spineCount++;
+}
+
+void BookMetadataCache::createTocEntry(const std::string& title, const std::string& href, const std::string& anchor,
+                                       const uint8_t level) {
+  if (!buildMode || !tocFile || !spineFile) {
+    Serial.printf("[%lu] [BMC] createTocEntry called but not in build mode\n", millis());
+    return;
+  }
+
+  int16_t spineIndex = -1;
+
+  if (useSpineHrefIndex) {
+    uint64_t targetHash = fnvHash64(href);
+    uint16_t targetLen = static_cast<uint16_t>(href.size());
+
+    auto it =
+        std::lower_bound(spineHrefIndex.begin(), spineHrefIndex.end(), SpineHrefIndexEntry{targetHash, targetLen, 0},
+                         [](const SpineHrefIndexEntry& a, const SpineHrefIndexEntry& b) {
+                           return a.hrefHash < b.hrefHash || (a.hrefHash == b.hrefHash && a.hrefLen < b.hrefLen);
+                         });
+
+    while (it != spineHrefIndex.end() && it->hrefHash == targetHash && it->hrefLen == targetLen) {
+      spineIndex = it->spineIndex;
+      break;
+    }
+
+    if (spineIndex == -1) {
+      Serial.printf("[%lu] [BMC] createTocEntry: Could not find spine item for TOC href %s\n", millis(), href.c_str());
+    }
+  } else {
+    spineFile.seek(0);
+    for (int i = 0; i < spineCount; i++) {
+      auto spineEntry = readSpineEntry(spineFile);
+      if (spineEntry.href == href) {
+        spineIndex = static_cast<int16_t>(i);
+        break;
+      }
+    }
+    if (spineIndex == -1) {
+      Serial.printf("[%lu] [BMC] createTocEntry: Could not find spine item for TOC href %s\n", millis(), href.c_str());
+    }
+  }
+
+  const TocEntry entry(title, href, anchor, level, spineIndex);
+  writeTocEntry(tocFile, entry);
+  tocCount++;
+}
+
+/* ============= READING / LOADING FUNCTIONS ================ */
+
+bool BookMetadataCache::load() {
+  if (!SdMan.openFileForRead("BMC", cachePath + bookBinFile, bookFile)) {
+    return false;
+  }
+
+  uint8_t version;
+  serialization::readPod(bookFile, version);
+  if (version != BOOK_CACHE_VERSION) {
+    Serial.printf("[%lu] [BMC] Cache version mismatch: expected %d, got %d\n", millis(), BOOK_CACHE_VERSION, version);
+    bookFile.close();
+    return false;
+  }
+
+  serialization::readPod(bookFile, lutOffset);
+  serialization::readPod(bookFile, spineCount);
+  serialization::readPod(bookFile, tocCount);
+
+  serialization::readString(bookFile, coreMetadata.title);
+  serialization::readString(bookFile, coreMetadata.author);
+  serialization::readString(bookFile, coreMetadata.language);
+  serialization::readString(bookFile, coreMetadata.coverItemHref);
+  serialization::readString(bookFile, coreMetadata.textReferenceHref);
+
+  loaded = true;
+  Serial.printf("[%lu] [BMC] Loaded cache data: %d spine, %d TOC entries\n", millis(), spineCount, tocCount);
+  return true;
+}
+
+BookMetadataCache::SpineEntry BookMetadataCache::getSpineEntry(const int index) {
+  if (!loaded) {
+    Serial.printf("[%lu] [BMC] getSpineEntry called but cache not loaded\n", millis());
+    return {};
+  }
+
+  if (index < 0 || index >= static_cast<int>(spineCount)) {
+    Serial.printf("[%lu] [BMC] getSpineEntry index %d out of range\n", millis(), index);
+    return {};
+  }
+
+  // Seek to spine LUT item, read from LUT and get out data
+  bookFile.seek(lutOffset + sizeof(uint32_t) * index);
+  uint32_t spineEntryPos;
+  serialization::readPod(bookFile, spineEntryPos);
+  bookFile.seek(spineEntryPos);
+  return readSpineEntry(bookFile);
+}
+
+BookMetadataCache::TocEntry BookMetadataCache::getTocEntry(const int index) {
+  if (!loaded) {
+    Serial.printf("[%lu] [BMC] getTocEntry called but cache not loaded\n", millis());
+    return {};
+  }
+
+  if (index < 0 || index >= static_cast<int>(tocCount)) {
+    Serial.printf("[%lu] [BMC] getTocEntry index %d out of range\n", millis(), index);
+    return {};
+  }
+
+  // Seek to TOC LUT item, read from LUT and get out data
+  bookFile.seek(lutOffset + sizeof(uint32_t) * spineCount + sizeof(uint32_t) * index);
+  uint32_t tocEntryPos;
+  serialization::readPod(bookFile, tocEntryPos);
+  bookFile.seek(tocEntryPos);
+  return readTocEntry(bookFile);
+}
+
+BookMetadataCache::SpineEntry BookMetadataCache::readSpineEntry(FsFile& file) const {
+  SpineEntry entry;
+  serialization::readString(file, entry.href);
+  serialization::readPod(file, entry.cumulativeSize);
+  serialization::readPod(file, entry.tocIndex);
+  return entry;
+}
+
+BookMetadataCache::TocEntry BookMetadataCache::readTocEntry(FsFile& file) const {
+  TocEntry entry;
+  serialization::readString(file, entry.title);
+  serialization::readString(file, entry.href);
+  serialization::readString(file, entry.anchor);
+  serialization::readPod(file, entry.level);
+  serialization::readPod(file, entry.spineIndex);
+  return entry;
+}

lib/Epub/Epub/BookMetadataCache.h

@@ -0,0 +1,112 @@
+#pragma once
+
+#include <SDCardManager.h>
+
+#include <algorithm>
+#include <string>
+#include <vector>
+
+class BookMetadataCache {
+ public:
+  struct BookMetadata {
+    std::string title;
+    std::string author;
+    std::string language;
+    std::string coverItemHref;
+    std::string textReferenceHref;
+  };
+
+  struct SpineEntry {
+    std::string href;
+    size_t cumulativeSize;
+    int16_t tocIndex;
+
+    SpineEntry() : cumulativeSize(0), tocIndex(-1) {}
+    SpineEntry(std::string href, const size_t cumulativeSize, const int16_t tocIndex)
+        : href(std::move(href)), cumulativeSize(cumulativeSize), tocIndex(tocIndex) {}
+  };
+
+  struct TocEntry {
+    std::string title;
+    std::string href;
+    std::string anchor;
+    uint8_t level;
+    int16_t spineIndex;
+
+    TocEntry() : level(0), spineIndex(-1) {}
+    TocEntry(std::string title, std::string href, std::string anchor, const uint8_t level, const int16_t spineIndex)
+        : title(std::move(title)),
+          href(std::move(href)),
+          anchor(std::move(anchor)),
+          level(level),
+          spineIndex(spineIndex) {}
+  };
+
+ private:
+  std::string cachePath;
+  size_t lutOffset;
+  uint16_t spineCount;
+  uint16_t tocCount;
+  bool loaded;
+  bool buildMode;
+
+  FsFile bookFile;
+  // Temp file handles during build
+  FsFile spineFile;
+  FsFile tocFile;
+
+  // Index for fast href→spineIndex lookup (used only for large EPUBs)
+  struct SpineHrefIndexEntry {
+    uint64_t hrefHash;  // FNV-1a 64-bit hash
+    uint16_t hrefLen;   // length for collision reduction
+    int16_t spineIndex;
+  };
+  std::vector<SpineHrefIndexEntry> spineHrefIndex;
+  bool useSpineHrefIndex = false;
+
+  static constexpr uint16_t LARGE_SPINE_THRESHOLD = 400;
+
+  // FNV-1a 64-bit hash function
+  static uint64_t fnvHash64(const std::string& s) {
+    uint64_t hash = 14695981039346656037ull;
+    for (char c : s) {
+      hash ^= static_cast<uint8_t>(c);
+      hash *= 1099511628211ull;
+    }
+    return hash;
+  }
+
+  uint32_t writeSpineEntry(FsFile& file, const SpineEntry& entry) const;
+  uint32_t writeTocEntry(FsFile& file, const TocEntry& entry) const;
+  SpineEntry readSpineEntry(FsFile& file) const;
+  TocEntry readTocEntry(FsFile& file) const;
+
+ public:
+  BookMetadata coreMetadata;
+
+  explicit BookMetadataCache(std::string cachePath)
+      : cachePath(std::move(cachePath)), lutOffset(0), spineCount(0), tocCount(0), loaded(false), buildMode(false) {}
+  ~BookMetadataCache() = default;
+
+  // Building phase (stream to disk immediately)
+  bool beginWrite();
+  bool beginContentOpfPass();
+  void createSpineEntry(const std::string& href);
+  bool endContentOpfPass();
+  bool beginTocPass();
+  void createTocEntry(const std::string& title, const std::string& href, const std::string& anchor, uint8_t level);
+  bool endTocPass();
+  bool endWrite();
+  bool cleanupTmpFiles() const;
+
+  // Post-processing to update mappings and sizes
+  bool buildBookBin(const std::string& epubPath, const BookMetadata& metadata);
+
+  // Reading phase (read mode)
+  bool load();
+  SpineEntry getSpineEntry(int index);
+  TocEntry getTocEntry(int index);
+  int getSpineCount() const { return spineCount; }
+  int getTocCount() const { return tocCount; }
+  bool isLoaded() const { return loaded; }
+};

lib/Epub/Epub/EpubHtmlParserSlim.cpp

@@ -1,293 +0,0 @@
-#include "EpubHtmlParserSlim.h"
-
-#include <EpdRenderer.h>
-#include <HardwareSerial.h>
-#include <expat.h>
-
-#include "Page.h"
-#include "htmlEntities.h"
-
-const char* HEADER_TAGS[] = {"h1", "h2", "h3", "h4", "h5", "h6"};
-constexpr int NUM_HEADER_TAGS = sizeof(HEADER_TAGS) / sizeof(HEADER_TAGS[0]);
-
-const char* BLOCK_TAGS[] = {"p", "li", "div", "br"};
-constexpr int NUM_BLOCK_TAGS = sizeof(BLOCK_TAGS) / sizeof(BLOCK_TAGS[0]);
-
-const char* BOLD_TAGS[] = {"b"};
-constexpr int NUM_BOLD_TAGS = sizeof(BOLD_TAGS) / sizeof(BOLD_TAGS[0]);
-
-const char* ITALIC_TAGS[] = {"i"};
-constexpr int NUM_ITALIC_TAGS = sizeof(ITALIC_TAGS) / sizeof(ITALIC_TAGS[0]);
-
-const char* IMAGE_TAGS[] = {"img"};
-constexpr int NUM_IMAGE_TAGS = sizeof(IMAGE_TAGS) / sizeof(IMAGE_TAGS[0]);
-
-const char* SKIP_TAGS[] = {"head", "table"};
-constexpr int NUM_SKIP_TAGS = sizeof(SKIP_TAGS) / sizeof(SKIP_TAGS[0]);
-
-bool isWhitespace(const char c) { return c == ' ' || c == '\r' || c == '\n'; }
-
-// given the start and end of a tag, check to see if it matches a known tag
-bool matches(const char* tag_name, const char* possible_tags[], const int possible_tag_count) {
-  for (int i = 0; i < possible_tag_count; i++) {
-    if (strcmp(tag_name, possible_tags[i]) == 0) {
-      return true;
-    }
-  }
-  return false;
-}
-
-// start a new text block if needed
-void EpubHtmlParserSlim::startNewTextBlock(const BLOCK_STYLE style) {
-  if (currentTextBlock) {
-    // already have a text block running and it is empty - just reuse it
-    if (currentTextBlock->isEmpty()) {
-      currentTextBlock->setStyle(style);
-      return;
-    }
-
-    currentTextBlock->finish();
-    makePages();
-    delete currentTextBlock;
-  }
-  currentTextBlock = new TextBlock(style);
-}
-
-void XMLCALL EpubHtmlParserSlim::startElement(void* userData, const XML_Char* name, const XML_Char** atts) {
-  auto* self = static_cast<EpubHtmlParserSlim*>(userData);
-  (void)atts;
-
-  // Middle of skip
-  if (self->skipUntilDepth < self->depth) {
-    self->depth += 1;
-    return;
-  }
-
-  if (matches(name, IMAGE_TAGS, NUM_IMAGE_TAGS)) {
-    // const char* src = element.Attribute("src");
-    // if (src) {
-    //   // don't leave an empty text block in the list
-    //   // const BLOCK_STYLE style = currentTextBlock->get_style();
-    //   if (currentTextBlock->isEmpty()) {
-    //     delete currentTextBlock;
-    //     currentTextBlock = nullptr;
-    //   }
-    //   // TODO: Fix this
-    //   // blocks.push_back(new ImageBlock(m_base_path + src));
-    //   // start a new text block - with the same style as before
-    //   // startNewTextBlock(style);
-    // } else {
-    //   // ESP_LOGE(TAG, "Could not find src attribute");
-    // }
-
-    // start skip
-    self->skipUntilDepth = self->depth;
-    self->depth += 1;
-    return;
-  }
-
-  if (matches(name, SKIP_TAGS, NUM_SKIP_TAGS)) {
-    // start skip
-    self->skipUntilDepth = self->depth;
-    self->depth += 1;
-    return;
-  }
-
-  if (matches(name, HEADER_TAGS, NUM_HEADER_TAGS)) {
-    self->startNewTextBlock(CENTER_ALIGN);
-    self->boldUntilDepth = min(self->boldUntilDepth, self->depth);
-  } else if (matches(name, BLOCK_TAGS, NUM_BLOCK_TAGS)) {
-    if (strcmp(name, "br") == 0) {
-      self->startNewTextBlock(self->currentTextBlock->getStyle());
-    } else {
-      self->startNewTextBlock(JUSTIFIED);
-    }
-  } else if (matches(name, BOLD_TAGS, NUM_BOLD_TAGS)) {
-    self->boldUntilDepth = min(self->boldUntilDepth, self->depth);
-  } else if (matches(name, ITALIC_TAGS, NUM_ITALIC_TAGS)) {
-    self->italicUntilDepth = min(self->italicUntilDepth, self->depth);
-  }
-
-  self->depth += 1;
-}
-
-void XMLCALL EpubHtmlParserSlim::characterData(void* userData, const XML_Char* s, const int len) {
-  auto* self = static_cast<EpubHtmlParserSlim*>(userData);
-
-  // Middle of skip
-  if (self->skipUntilDepth < self->depth) {
-    return;
-  }
-
-  for (int i = 0; i < len; i++) {
-    if (isWhitespace(s[i])) {
-      // Currently looking at whitespace, if there's anything in the partWordBuffer, flush it
-      if (self->partWordBufferIndex > 0) {
-        self->partWordBuffer[self->partWordBufferIndex] = '\0';
-        self->currentTextBlock->addWord(replaceHtmlEntities(self->partWordBuffer), self->boldUntilDepth < self->depth,
-                                        self->italicUntilDepth < self->depth);
-        self->partWordBufferIndex = 0;
-      }
-      // Skip the whitespace char
-      continue;
-    }
-
-    // If we're about to run out of space, then cut the word off and start a new one
-    if (self->partWordBufferIndex >= PART_WORD_BUFFER_SIZE - 2) {
-      self->partWordBuffer[self->partWordBufferIndex] = '\0';
-      self->currentTextBlock->addWord(replaceHtmlEntities(self->partWordBuffer), self->boldUntilDepth < self->depth,
-                                      self->italicUntilDepth < self->depth);
-      self->partWordBufferIndex = 0;
-    }
-
-    self->partWordBuffer[self->partWordBufferIndex++] = s[i];
-  }
-}
-
-void XMLCALL EpubHtmlParserSlim::endElement(void* userData, const XML_Char* name) {
-  auto* self = static_cast<EpubHtmlParserSlim*>(userData);
-  (void)name;
-
-  if (self->partWordBufferIndex > 0) {
-    // Only flush out part word buffer if we're closing a block tag or are at the top of the HTML file.
-    // We don't want to flush out content when closing inline tags like <span>.
-    // Currently this also flushes out on closing <b> and <i> tags, but they are line tags so that shouldn't happen,
-    // text styling needs to be overhauled to fix it.
-    const bool shouldBreakText =
-        matches(name, BLOCK_TAGS, NUM_BLOCK_TAGS) || matches(name, HEADER_TAGS, NUM_HEADER_TAGS) ||
-        matches(name, BOLD_TAGS, NUM_BOLD_TAGS) || matches(name, ITALIC_TAGS, NUM_ITALIC_TAGS) || self->depth == 1;
-
-    if (shouldBreakText) {
-      self->partWordBuffer[self->partWordBufferIndex] = '\0';
-      self->currentTextBlock->addWord(replaceHtmlEntities(self->partWordBuffer), self->boldUntilDepth < self->depth,
-                                      self->italicUntilDepth < self->depth);
-      self->partWordBufferIndex = 0;
-    }
-  }
-
-  self->depth -= 1;
-
-  // Leaving skip
-  if (self->skipUntilDepth == self->depth) {
-    self->skipUntilDepth = INT_MAX;
-  }
-
-  // Leaving bold
-  if (self->boldUntilDepth == self->depth) {
-    self->boldUntilDepth = INT_MAX;
-  }
-
-  // Leaving italic
-  if (self->italicUntilDepth == self->depth) {
-    self->italicUntilDepth = INT_MAX;
-  }
-}
-
-bool EpubHtmlParserSlim::parseAndBuildPages() {
-  startNewTextBlock(JUSTIFIED);
-
-  const XML_Parser parser = XML_ParserCreate(nullptr);
-  int done;
-
-  if (!parser) {
-    Serial.println("Couldn't allocate memory for parser");
-    return false;
-  }
-
-  XML_SetUserData(parser, this);
-  XML_SetElementHandler(parser, startElement, endElement);
-  XML_SetCharacterDataHandler(parser, characterData);
-
-  FILE* file = fopen(filepath, "r");
-  if (!file) {
-    Serial.printf("Couldn't open file %s\n", filepath);
-    XML_ParserFree(parser);
-    return false;
-  }
-
-  do {
-    void* const buf = XML_GetBuffer(parser, 1024);
-    if (!buf) {
-      Serial.println("Couldn't allocate memory for buffer");
-      XML_ParserFree(parser);
-      fclose(file);
-      return false;
-    }
-
-    const size_t len = fread(buf, 1, 1024, file);
-
-    if (ferror(file)) {
-      Serial.println("Read error");
-      XML_ParserFree(parser);
-      fclose(file);
-      return false;
-    }
-
-    done = feof(file);
-
-    if (XML_ParseBuffer(parser, static_cast<int>(len), done) == XML_STATUS_ERROR) {
-      Serial.printf("Parse error at line %lu:\n%s\n", XML_GetCurrentLineNumber(parser),
-                    XML_ErrorString(XML_GetErrorCode(parser)));
-      XML_ParserFree(parser);
-      fclose(file);
-      return false;
-    }
-  } while (!done);
-
-  XML_ParserFree(parser);
-  fclose(file);
-
-  // Process last page if there is still text
-  if (currentTextBlock) {
-    makePages();
-    completePageFn(currentPage);
-    currentPage = nullptr;
-    delete currentTextBlock;
-    currentTextBlock = nullptr;
-  }
-
-  return true;
-}
-
-void EpubHtmlParserSlim::makePages() {
-  if (!currentTextBlock) {
-    Serial.println("!! No text block to make pages for !!");
-    return;
-  }
-
-  if (!currentPage) {
-    currentPage = new Page();
-  }
-
-  const int lineHeight = renderer.getLineHeight();
-  const int pageHeight = renderer.getPageHeight();
-
-  // Long running task, make sure to let other things happen
-  vTaskDelay(1);
-
-  if (currentTextBlock->getType() == TEXT_BLOCK) {
-    const auto lines = currentTextBlock->splitIntoLines(renderer);
-
-    for (const auto line : lines) {
-      if (currentPage->nextY + lineHeight > pageHeight) {
-        completePageFn(currentPage);
-        currentPage = new Page();
-      }
-
-      currentPage->elements.push_back(new PageLine(line, currentPage->nextY));
-      currentPage->nextY += lineHeight;
-    }
-    // add some extra line between blocks
-    currentPage->nextY += lineHeight / 2;
-  }
-  // TODO: Image block support
-  // if (block->getType() == BlockType::IMAGE_BLOCK) {
-  //   ImageBlock *imageBlock = (ImageBlock *)block;
-  //   if (y + imageBlock->height > page_height) {
-  //     pages.push_back(new Page());
-  //     y = 0;
-  //   }
-  //   pages.back()->elements.push_back(new PageImage(imageBlock, y));
-  //   y += imageBlock->height;
-  // }
-}

lib/Epub/Epub/EpubHtmlParserSlim.h

@@ -1,42 +0,0 @@
-#pragma once
-
-#include <expat.h>
-#include <limits.h>
-
-#include <functional>
-
-#include "blocks/TextBlock.h"
-
-class Page;
-class EpdRenderer;
-
-#define PART_WORD_BUFFER_SIZE 200
-
-class EpubHtmlParserSlim {
-  const char* filepath;
-  EpdRenderer& renderer;
-  std::function<void(Page*)> completePageFn;
-  int depth = 0;
-  int skipUntilDepth = INT_MAX;
-  int boldUntilDepth = INT_MAX;
-  int italicUntilDepth = INT_MAX;
-  // If we encounter words longer than this, but this is pretty large
-  char partWordBuffer[PART_WORD_BUFFER_SIZE] = {};
-  int partWordBufferIndex = 0;
-  TextBlock* currentTextBlock = nullptr;
-  Page* currentPage = nullptr;
-
-  void startNewTextBlock(BLOCK_STYLE style);
-  void makePages();
-  // XML callbacks
-  static void XMLCALL startElement(void* userData, const XML_Char* name, const XML_Char** atts);
-  static void XMLCALL characterData(void* userData, const XML_Char* s, int len);
-  static void XMLCALL endElement(void* userData, const XML_Char* name);
-
- public:
-  explicit EpubHtmlParserSlim(const char* filepath, EpdRenderer& renderer,
-                              const std::function<void(Page*)>& completePageFn)
-      : filepath(filepath), renderer(renderer), completePageFn(completePageFn) {}
-  ~EpubHtmlParserSlim() = default;
-  bool parseAndBuildPages();
-};

lib/Epub/Epub/Page.cpp

@@ -3,61 +3,65 @@
 #include <HardwareSerial.h>
 #include <Serialization.h>
 
-void PageLine::render(EpdRenderer& renderer) { block->render(renderer, 0, yPos); }
+void PageLine::render(GfxRenderer& renderer, const int fontId, const int xOffset, const int yOffset) {
+  block->render(renderer, fontId, xPos + xOffset, yPos + yOffset);
+}
 
-void PageLine::serialize(std::ostream& os) {
-  serialization::writePod(os, yPos);
+bool PageLine::serialize(FsFile& file) {
+  serialization::writePod(file, xPos);
+  serialization::writePod(file, yPos);
 
   // serialize TextBlock pointed to by PageLine
-  block->serialize(os);
+  return block->serialize(file);
 }
 
-PageLine* PageLine::deserialize(std::istream& is) {
-  int32_t yPos;
-  serialization::readPod(is, yPos);
+std::unique_ptr<PageLine> PageLine::deserialize(FsFile& file) {
+  int16_t xPos;
+  int16_t yPos;
+  serialization::readPod(file, xPos);
+  serialization::readPod(file, yPos);
 
-  const auto tb = TextBlock::deserialize(is);
-  return new PageLine(tb, yPos);
+  auto tb = TextBlock::deserialize(file);
+  return std::unique_ptr<PageLine>(new PageLine(std::move(tb), xPos, yPos));
 }
 
-void Page::render(EpdRenderer& renderer) const {
-  const auto start = millis();
-  for (const auto element : elements) {
-    element->render(renderer);
+void Page::render(GfxRenderer& renderer, const int fontId, const int xOffset, const int yOffset) const {
+  for (auto& element : elements) {
+    element->render(renderer, fontId, xOffset, yOffset);
   }
-  Serial.printf("Rendered page elements (%u) in %dms\n", elements.size(), millis() - start);
 }
 
-void Page::serialize(std::ostream& os) const {
-  serialization::writePod(os, nextY);
+bool Page::serialize(FsFile& file) const {
+  const uint16_t count = elements.size();
+  serialization::writePod(file, count);
 
-  const uint32_t count = elements.size();
-  serialization::writePod(os, count);
-
-  for (auto* el : elements) {
+  for (const auto& el : elements) {
     // Only PageLine exists currently
-    serialization::writePod(os, static_cast<uint8_t>(TAG_PageLine));
-    static_cast<PageLine*>(el)->serialize(os);
+    serialization::writePod(file, static_cast<uint8_t>(TAG_PageLine));
+    if (!el->serialize(file)) {
+      return false;
+    }
   }
+
+  return true;
 }
 
-Page* Page::deserialize(std::istream& is) {
-  auto* page = new Page();
+std::unique_ptr<Page> Page::deserialize(FsFile& file) {
+  auto page = std::unique_ptr<Page>(new Page());
 
-  serialization::readPod(is, page->nextY);
+  uint16_t count;
+  serialization::readPod(file, count);
 
-  uint32_t count;
-  serialization::readPod(is, count);
-
-  for (uint32_t i = 0; i < count; i++) {
+  for (uint16_t i = 0; i < count; i++) {
     uint8_t tag;
-    serialization::readPod(is, tag);
+    serialization::readPod(file, tag);
 
     if (tag == TAG_PageLine) {
-      auto* pl = PageLine::deserialize(is);
-      page->elements.push_back(pl);
+      auto pl = PageLine::deserialize(file);
+      page->elements.push_back(std::move(pl));
     } else {
-      throw std::runtime_error("Unknown PageElement tag");
+      Serial.printf("[%lu] [PGE] Deserialization failed: Unknown tag %u\n", millis(), tag);
+      return nullptr;
     }
   }
 

lib/Epub/Epub/Page.h

@@ -1,4 +1,9 @@
 #pragma once
+#include <SdFat.h>
+
+#include <utility>
+#include <vector>
+
 #include "blocks/TextBlock.h"
 
 enum PageElementTag : uint8_t {
@@ -8,36 +13,31 @@ enum PageElementTag : uint8_t {
 // represents something that has been added to a page
 class PageElement {
  public:
-  int yPos;
-  explicit PageElement(const int yPos) : yPos(yPos) {}
+  int16_t xPos;
+  int16_t yPos;
+  explicit PageElement(const int16_t xPos, const int16_t yPos) : xPos(xPos), yPos(yPos) {}
   virtual ~PageElement() = default;
-  virtual void render(EpdRenderer& renderer) = 0;
-  virtual void serialize(std::ostream& os) = 0;
+  virtual void render(GfxRenderer& renderer, int fontId, int xOffset, int yOffset) = 0;
+  virtual bool serialize(FsFile& file) = 0;
 };
 
 // a line from a block element
 class PageLine final : public PageElement {
-  const TextBlock* block;
+  std::shared_ptr<TextBlock> block;
 
  public:
-  PageLine(const TextBlock* block, const int yPos) : PageElement(yPos), block(block) {}
-  ~PageLine() override { delete block; }
-  void render(EpdRenderer& renderer) override;
-  void serialize(std::ostream& os) override;
-  static PageLine* deserialize(std::istream& is);
+  PageLine(std::shared_ptr<TextBlock> block, const int16_t xPos, const int16_t yPos)
+      : PageElement(xPos, yPos), block(std::move(block)) {}
+  void render(GfxRenderer& renderer, int fontId, int xOffset, int yOffset) override;
+  bool serialize(FsFile& file) override;
+  static std::unique_ptr<PageLine> deserialize(FsFile& file);
 };
 
 class Page {
  public:
-  int nextY = 0;
   // the list of block index and line numbers on this page
-  std::vector<PageElement*> elements;
-  void render(EpdRenderer& renderer) const;
-  ~Page() {
-    for (const auto element : elements) {
-      delete element;
-    }
-  }
-  void serialize(std::ostream& os) const;
-  static Page* deserialize(std::istream& is);
+  std::vector<std::shared_ptr<PageElement>> elements;
+  void render(GfxRenderer& renderer, int fontId, int xOffset, int yOffset) const;
+  bool serialize(FsFile& file) const;
+  static std::unique_ptr<Page> deserialize(FsFile& file);
 };