## Summary
* What is the goal of this PR?
- Allow users to create custom sleep screen images with standard tools
(ImageMagick, GIMP, etc.) that render cleanly on the e-ink display
without dithering artifacts. Previously, avoiding dithering required
non-standard 2-bit BMPs that no standard image editor can produce. ( see
issue #931 )
* What changes are included?
- Add 4-bit BMP format support to Bitmap.cpp (standard format, widely
supported by image tools)
- Auto-detect "native palette" images: if a BMP has ≤4 palette entries
and all luminances map within ±21 of the display's native gray levels
(0, 85, 170, 255), skip dithering entirely and direct-map pixels
- Clarify pixel processing strategy with three distinct paths:
error-diffusion dithering, simple quantization, or direct mapping
- Add scripts/generate_test_bmps.py for generating test images across
all supported BMP formats
## Additional Context
* The e-ink display has 4 native gray levels. When a BMP already uses
exactly those levels, dithering adds noise to what should be clean
output. The native palette detection uses a ±21 tolerance (~10%) to
handle slight rounding from color space conversions in image tools.
Users can now create a 4-color grayscale BMP with (imagemagic example):
```
convert input.png -colorspace Gray -colors 4 -depth
```
---
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## Summary
**What is the goal of this PR?**
Several methods in GfxRenderer were doing a `count()` followed by `at()`
on the fonts map, effectively doing the same map lookup unnecessarily.
This can be avoided by doing a single `find()` and reusing the iterator.
---
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## Summary
* GfxRender did handle horizontal and vertical lines but had a TODO for
arbitrary lines.
* Added integer based Bresenham line drawing
## Additional Context
---
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## Summary
* Original implementation had inconsistent positioning logic:
- When XPath parsing succeeded: incorrectly set pageNumber = 0 (always
beginning of chapter)
- When XPath parsing failed: used percentage for positioning (worked
correctly)
- Result: Positions restored to wrong locations depending on XPath
parsing success
- Mentioned in Issue #581
* Solution
- Unified ProgressMapper::toCrossPoint() to use percentage-based
positioning exclusively for both spine identification and intra-chapter
page calculation, eliminating unreliable XPath parsing entirely.
## Additional Context
* ProgressMapper.cpp: Simplified toCrossPoint() to always use percentage
for positioning, removed parseDocFragmentIndex() function
* ProgressMapper.h: Updated comments and removed unused function
declaration
* Tests confirmed appropriate positioning
* __Notabene: the syncing to another device will (most probably) end up
at the current chapter of crosspoints reading position. There is not
much we can do about it, as KOReader needs to have the correct XPath
information - we can only provide an apporximate position (plus
percentage) - the percentage information is not used in KOReaders
current implementation__
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**What is the goal of this PR?**
In some places, button labels are omitted intentionally because the
button has no purpose in the activity. I noticed a few obvious cases,
like Home > File Transfer and Settings > System > Language, where the up
and down button labels were missing. This change fixes those and all
similar instances I could find.
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## Summary
* **What is the goal of this PR?** Update translators.md to include all
the contributors from #728
---
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## Summary
* **What is the goal of this PR?** (e.g., Implements the new feature for
file uploading.)
Adresses Feature Request #896
* **What changes are included?**
Changed key dimensions, initial positions and margins.
## Additional Context
The keyboard now looks like this:

---
### AI Usage
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I want to preface this PR by stating that the proposed changes are
subjective to people's opinions. The following is just my suggestion,
but I'm of course open to changes.
The popups in the currently implemented version of the Lyra theme feel a
bit out of place. This PR suggests an updated version which looks a bit
more polished and in line with the rest of the theme.
I've also taken the liberty to remove the ellipsis behind the text of
the popups, as they made the popup feel a bit off balance (example
below).
With the applied changes, popups will look like this.

The vertical position is (more or less) aligned to be in line with the
sleep button. I'm aware the popup is used for other purposes aside from
the sleep message, but this still felt like a good place. It's also a
place where your eyes naturally 'rest'.
The popup has a small 2px white outline, neatly separating it from
whatever is behind it.
Initially I started out worked off the Figma design for the Lyra theme,
which [moves the
popups](https://www.figma.com/design/UhxoV4DgUnfrDQgMPPTXog/Lyra-Theme?node-id=2011-19296&t=Ppj6B2MrFRfUo9YX-1)
to the bottom of the screen. To me, this results in popups that are much
too easy to miss:

After this, I tried moving the popup back up (to the position of the
sleep button), but to me it still kinda disappeared into the text of the
book:

Inverting the colors of the popup made things stand out the perfect
amount in my opinion. The white outline separates the popup from what is
behind it.

This looked much better to me. The only thing that felt a bit off to me,
was the balance due to the ellipsis at the end of the popup text. Also,
"Entering Sleep..." felt a bit.. engineer-y. I felt something a bit more
'conversational' makes at all feel a bit more human-centric. But I'm no
copywriter, and English is not even my native language. So feel free to
chip in!
After tweaking that, I ended up with the final result:
_(Same picture as the first one shown in this PR)_

* Figma design:
https://www.figma.com/design/UhxoV4DgUnfrDQgMPPTXog/Lyra-Theme?node-id=2011-19296&t=Ppj6B2MrFRfUo9YX-1
---
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* **What is the goal of this PR?**
Add proper hyphenation support for the Ukrainian language.
* **What changes are included?**
- Added Ukrainian hyphenation rules/dictionary
---
Did you use AI tools to help write this code? _**NO**_
Port PR #979's silent pre-indexing and add an Indexing Display setting
(Popup / Status Bar Text / Status Bar Icon) so users can choose how
indexing feedback is shown.
Silent pre-indexing runs on text-only penultimate pages when a status
bar option is selected, with a standard requestUpdate to clear the
indicator. Image pages skip silent indexing to avoid e-ink grayscale
pipeline conflicts; the normal popup handles those transitions. Direct
chapter jumps always show the original small popup regardless of setting.
Co-authored-by: Cursor <cursoragent@cursor.com>
Port 6 upstream PRs (PR #939 was already ported):
- #852: Complete HalPowerManager with RAII Lock class, WiFi check in
setPowerSaving, skipLoopDelay overrides for ClearCache/OtaUpdate,
and power lock in Activity render task loops
- #965: Fix paragraph formatting inside list items by tracking
listItemUntilDepth to prevent unwanted line breaks
- #972: Micro-optimizations: std::move in insertFont, const ref for
getDataFromBook parameter
- #971: Remove redundant hasPrintableChars pre-rendering pass from
EpdFont, EpdFontFamily, and GfxRenderer
- #977: Skip unsupported image formats before extraction, add
PARSE_BUFFER_SIZE constant and chapter parse timing
- #975: Fix UITheme memory leak by replacing raw pointer with
std::unique_ptr for currentTheme
Co-authored-by: Cursor <cursoragent@cursor.com>
Instead of shrinking the highlight strip (which clipped author text),
increase homeCoverTileHeight from 310 to 318 for proper bottom padding.
Revert double-padding subtraction in bottomH/bottomSectionHeight.
Co-authored-by: Cursor <cursoragent@cursor.com>
The selection highlight had uniform padding on the top, left, and right
but none on the bottom, causing descenders in the author text to clip
past the highlight edge.
Co-authored-by: Cursor <cursoragent@cursor.com>
Fix clock persistence bug caused by stale legacy read in settings
deserialization. Add clock size setting (Small/Medium/Large) and
timezone selection with North American presets plus custom UTC offset.
Move all clock-related settings into a dedicated Clock tab, rename
"Home Screen Clock" to "Clock", and move minute-change detection to
main loop so the header clock updates on every screen.
Co-authored-by: Cursor <cursoragent@cursor.com>
- Fix SetTimeActivity immediately dismissing by changing wasReleased to
wasPressed for all button inputs (matching other subactivities)
- Extract NTP sync into shared TimeSync utility (startNtpSync,
waitForNtpSync, stopNtpSync) and trigger non-blocking NTP sync on
every WiFi connection
- Move clock rendering into drawHeader (BaseTheme + LyraTheme) so it
appears on all screens with a header, positioned symmetrically with
the battery icon (12px margin, same Y offset, SMALL_FONT_ID)
- Add per-minute auto-refresh on home screen so clock updates without
button press
- Add RTC time debug log on boot to verify time persistence across
deep sleep
Co-authored-by: Cursor <cursoragent@cursor.com>
Skip the reader menu when long-pressing Confirm (700ms) to jump
straight to the chapter selection screen. Short press behavior
(opening the menu) is unchanged. Extracts shared openChapterSelection()
helper to eliminate duplicated construction across three call sites.
Co-authored-by: Cursor <cursoragent@cursor.com>
- 1-book view: horizontal layout with cover left, title/author right
- 2-3 book view: fix cover stretching by preserving aspect ratio
- 0-book view: show "Choose something to read" placeholder
- Selection highlight now fully contains title and author text
- Add optional clock display in home screen header (AM/PM or 24H)
- Add "Home Screen Clock" setting under Display
- Add "Set Time" activity for manual clock setting via Settings
- Increase homeCoverTileHeight to 310 for title/author breathing room
Co-authored-by: Cursor <cursoragent@cursor.com>
Consolidate dictionary items: remove "Lookup Word History" and
"Delete Dictionary Cache" from the menu. Long-press on "Lookup Word"
opens history; delete-dict-cache is now a sentinel entry at the bottom
of the history list.
Replace "Reading Orientation" with "Toggle Portrait/Landscape" that
toggles between two configurable preferred orientations (new settings:
Preferred Portrait, Preferred Landscape). Long-press opens a manual
4-option orientation sub-menu.
Add "Toggle Font Size" menu item that cycles through font sizes and
applies on menu exit (with section re-layout).
Rename "Letterbox Fill" to "Override Letterbox Fill" and
"Sync Progress" to "Sync Reading Progress" in reader menu.
All long-press flows use ignoreNextConfirmRelease to prevent the
button release from triggering actions on the subsequent screen.
Co-authored-by: Cursor <cursoragent@cursor.com>
## Summary
This PR includes vocabulary and grammar fixes for Russian translation,
originally made as review comments
[here](https://github.com/crosspoint-reader/crosspoint-reader/pull/728).
---
### AI Usage
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## Summary
**What is the goal of this PR?**
Skip constructing a `std::string` just to get the underlying `c_str()`
buffer, when a string literal gives the same end result.
---
### AI Usage
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Migrate 5 mod Activity subclasses from old polling-based
display task pattern to the upstream render() super-class
pattern with freeRTOS notification:
- EpubReaderBookmarkSelectionActivity
- DictionaryWordSelectActivity
- DictionarySuggestionsActivity
- DictionaryDefinitionActivity
- LookedUpWordsActivity
Changes: remove own TaskHandle/SemaphoreHandle/updateRequired,
use requestUpdate() + render(RenderLock&&) override, fix
potential deadlocks around enterNewActivity() calls.
Also fix stale conflict marker in EpubReaderMenuActivity.h.
Co-authored-by: Cursor <cursoragent@cursor.com>
Issues solved: #729 and #739
## Summary
* **What is the goal of this PR?**
Currently, the battery icon and charge percentage were aligned to the
left even for the UI, where they were positioned on the right side of
the screen. This meant that when changing values of different numbers of
digits, the battery would shift, creating a block of icons and text that
was illegible.
* **What changes are included?**
- Add drawBatteryUi() method for right-aligned battery display in UI
headers
- Keep drawBattery() for left-aligned display in reader mode
- Extract drawBatteryIcon() helper to reduce code duplication
- Battery icon now stays fixed at right edge regardless of percentage
digits
- Text adjusts to left of icon in UI mode, to right of icon in reader
mode
## Additional Context
* Add any other information that might be helpful for the reviewer
* This fix applies to both themes (Base and Lyra).
---
### AI Usage
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Did you use AI tools to help write this code? _**< YES >**_
## Summary
* **What is the goal of this PR?** (e.g., Implements the new feature for
file uploading.)
Add a translators document for us to track which individuals have
volunteered to contribute in which languages.
* **What changes are included?**
Add a new document that includes who the translators are and what
languages they have volunteered for.
## Additional Context
This is primarily to keep a handle on the volunteers coming into the
repo. This will serve as a master list of all volunteer translators.
---
### AI Usage
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Did you use AI tools to help write this code? **NO**
---------
Signed-off-by: Andrew Brandt <brandt.andrew89@gmail.com>
## Summary
* **What is the goal of this PR?** (e.g., Implements the new feature for
file uploading.)
Updating webserver.md documentation to align with 1.0.0 features
* **What changes are included?**
Added documentation for the following new features (including replacing
screenshots)
- file renaming
- file moving
- support for uploading any file type
- batch uploads
## Additional Context
* Add any other information that might be helpful for the reviewer
(e.g., performance implications, potential risks,
specific areas to focus on).
Nothing comes to mind
---
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## Summary
* **What is the goal of this PR?** (e.g., Implements the new feature for
file uploading.)
Empty Button Icons (I.E. Back button in the home menu) were still
rendering the full sized white rectangles going passed the boarders of
the little button nub. This was not visible on the home screen due to
the white background, but it does cause issues if we ever want to have
bmp files displayed while buttons are visible or implement a dark mode.
* **What changes are included?**
Made it so that when a button hint text is empty string or null the
displayed mini button nub does not have a white rectangle extending
passed the bounds of the mini button nub
## Additional Context
* Add any other information that might be helpful for the reviewer
(e.g., performance implications, potential risks,
specific areas to focus on).
Having that extended rectangle was likely never noticed due to the only
space where that feature is used being the main menu where the
background is completely white. I am working on some new features that
would have an image displayed while there are button hints and noticed
this issue while implementing that.
One other note is that this only affects the Lyra Theme
---
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**What is the goal of this PR?**
This PR introduces Internationalization (i18n) support, enabling users
to switch the UI language dynamically.
**What changes are included?**
- Core Logic: Added I18n class (`lib/I18n/I18n.h/cpp`) to manage
language state and string retrieval.
- Data Structures:
- `lib/I18n/I18nStrings.h/cpp`: Static string arrays for each supported
language.
- `lib/I18n/I18nKeys.h`: Enum definitions for type-safe string access.
- `lib/I18n/translations.csv`: single source of truth.
- Documentation: Added `docs/i18n.md` detailing the workflow for
developers and translators.
- New Settings activity:
`src/activities/settings/LanguageSelectActivity.h/cpp`
This implementation (building on concepts from #505) prioritizes
performance and memory efficiency.
The core approach is to store all localized strings for each language in
dedicated arrays and access them via enums. This provides O(1) access
with zero runtime overhead, and avoids the heap allocations, hashing,
and collision handling required by `std::map` or `std::unordered_map`.
The main trade-off is that enums and string arrays must remain perfectly
synchronized—any mismatch would result in incorrect strings being
displayed in the UI.
To eliminate this risk, I added a Python script that automatically
generates `I18nStrings.h/.cpp` and `I18nKeys.h` from a CSV file, which
will serve as the single source of truth for all translations. The full
design and workflow are documented in `docs/i18n.md`.
- [x] Python script `generate_i18n.py` to auto-generate C++ files from
CSV
- [x] Populate translations.csv with initial translations.
Currently available translations: English, Español, Français, Deutsch,
Čeština, Português (Brasil), Русский, Svenska.
Thanks, community!
**Status:** EDIT: ready to be merged.
As a proof of concept, the SPANISH strings currently mirror the English
ones, but are fully uppercased.
---
Did you use AI tools to help write this code? _**< PARTIALLY >**_
I used AI for the black work of replacing strings with I18n references
across the project, and for generating the documentation. EDIT: also
some help with merging changes from master.
---------
Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Co-authored-by: yeyeto2788 <juanernestobiondi@gmail.com>
Follow-up to
https://github.com/crosspoint-reader/crosspoint-reader/pull/774
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<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
* **Refactor**
* Modernized internal synchronization mechanisms across multiple
components to improve code reliability and maintainability. All
functionality remains unchanged.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Currently, each activity has to manage their own `displayTaskLoop` which
adds redundant boilerplate code. The loop is a wait loop which is also
not the best practice, as the `updateRequested` boolean is not protected
by a mutex.
In this PR:
- Move `displayTaskLoop` to the super `Activity` class
- Replace `updateRequested` with freeRTOS's [direct to task
notification](https://www.freertos.org/Documentation/02-Kernel/02-Kernel-features/03-Direct-to-task-notifications/01-Task-notifications)
- For `ActivityWithSubactivity`, whenever a sub-activity is present, the
parent's `render()` automatically goes inactive
With this change, activities now only need to expose `render()`
function, and anywhere in the code base can call `requestUpdate()` to
request a new rendering pass.
In theory, this change may also make the battery life a bit better,
since one wait loop is removed. Although the equipment in my home lab
wasn't been able to verify it (the electric current is too noisy and
small). Would appreciate if anyone has any insights on this subject.
Update: I managed to hack [a small piece of
code](https://github.com/ngxson/crosspoint-reader/tree/xsn/measure_cpu_usage)
that allow tracking CPU idle time.
The CPU load does decrease a bit (1.47% down to 1.39%), which make
sense, because the display task is now sleeping most of the time unless
notified. This should translate to a slightly increase in battery life
in the long run.
```
PR:
[40012] [MEM] Free: 185856 bytes, Total: 231004 bytes, Min Free: 123316 bytes
[40012] [IDLE] Idle time: 98.61% (CPU load: 1.39%)
[50017] [MEM] Free: 185856 bytes, Total: 231004 bytes, Min Free: 123316 bytes
[50017] [IDLE] Idle time: 98.61% (CPU load: 1.39%)
[60022] [MEM] Free: 185856 bytes, Total: 231004 bytes, Min Free: 123316 bytes
[60022] [IDLE] Idle time: 98.61% (CPU load: 1.39%)
master:
[20012] [MEM] Free: 195016 bytes, Total: 231532 bytes, Min Free: 132460 bytes
[20012] [IDLE] Idle time: 98.53% (CPU load: 1.47%)
[30017] [MEM] Free: 195016 bytes, Total: 231532 bytes, Min Free: 132460 bytes
[30017] [IDLE] Idle time: 98.53% (CPU load: 1.47%)
[40022] [MEM] Free: 195016 bytes, Total: 231532 bytes, Min Free: 132460 bytes
[40022] [IDLE] Idle time: 98.53% (CPU load: 1.47%)
```
---
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<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
* **Refactor**
* Streamlined rendering architecture by consolidating update mechanisms
across all activities, improving efficiency and consistency.
* Modernized synchronization patterns for display updates to ensure
reliable, conflict-free rendering.
* **Bug Fixes**
* Enhanced rendering stability through improved locking mechanisms and
explicit update requests.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: znelson <znelson@users.noreply.github.com>
## Summary
* I am getting miniz warning during compilation: "Using fopen, ftello,
fseeko, stat() etc. path for file I/O - this path may not support large
files."
* Disable the io module from miniz as it is not used and get rid of the
warning
## Additional Context
* the ZipFile.cpp implementation only uses tinfl_decompressor,
tinfl_init(), and tinfl_decompress() (low-level API) and does all ZIP
file parsing manually using SD card file I/O
* it never uses miniz's high-level file functions like
mz_zip_reader_init_file()
* so we can disable Miniz io-stack be setting MINIZ_NO_STDIO to 1
### AI Usage
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please be transparent about their usage as it
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Did you use AI tools to help write this code? partially, let claude
inspect the codebase
## Summary
* If an EPUB has:
```
<dc:creator>J.R.R. Tolkien</dc:creator>
<dc:creator>Christopher Tolkien</dc:creator>
```
the current result for epub.author would provide : "J.R.R.
TolkienChristopher Tolkien" (no separator!)
* The fix will seperate multiple authors: "J.R.R. Tolkien, Christopher
Tolkien"
## Additional Context
* Simple fix in ContentOpfParser - I am not seeing any dependence on the
wrong concatenated result.
---
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## Summary
* Include dictionary as in-scope
## Additional Context
* Discussion in
https://github.com/crosspoint-reader/crosspoint-reader/discussions/878
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## Summary
**What is the goal of this PR?** (e.g., Implements the new feature for
file uploading.)
Minor development tooling fix for nonstandard environments (NixOS,
FreeBSD, Guix, etc.)
**What changes are included?**
- environment relative shebang in `clang-format-fix`
- clang-format check in `clang-format-fix`
---
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* The constant SETTINGS_CONST was hardcoded and needed to be updated
whenever an additional setting was added
* This is no longer necessary as the settings size will be determined
automatically on settings persistence
* New settings need to be added (as previously) in saveToFile - that's
it
---
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---------
Co-authored-by: Xuan Son Nguyen <son@huggingface.co>
This PR applies a micro optimization on `SerializedHyphenationPatterns`,
which allow reading `rootOffset` directly without having to parse then
cache it.
It should not affect storage space since no new bytes are added.
This also gets rid of the linear cache search whenever
`liangBreakIndexes` is called. In theory, the performance should be
improved a bit, although it may be too small to be noticeable in
practice.
master branch:
```
english: 99.1023%
french: 100%
german: 97.7289%
russian: 97.2167%
spanish: 99.0236%
```
This PR:
```
english: 99.1023%
french: 100%
german: 97.7289%
russian: 97.2167%
spanish: 99.0236%
```
---
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Did you use AI tools to help write this code? PARTIALLY - mostly IDE
tab-autocompletions
Remove empty sentinel BMP file from generateThumbBmp() that blocked
placeholder generation for books without covers. Add removeBook() to
RecentBooksStore and clear book from recents on cache delete. Ensure
home screen always generates placeholder when thumbnail generation fails.
Co-authored-by: Cursor <cursoragent@cursor.com>
Cherry-pick merge from pablohc/crosspoint-reader@2d8cbcf, based on
upstream PR #556 by martinbrook with pablohc's refresh optimization.
- Add JPEG decoder (picojpeg) and PNG decoder (PNGdec) with 4-level
grayscale Bayer dithering for e-ink display
- Add pixel caching system (.pxc files) for fast image re-rendering
- Integrate image extraction from EPUB HTML parser (<img> tag support)
- Add ImageBlock/PageImage types with serialization support
- Add image-aware refresh optimization (double FAST_REFRESH technique)
- Add experimental displayWindow() partial refresh support
- Bump section cache version 12->13 to invalidate stale caches
- Resolve TAG_PageImage=3 to avoid conflict with mod's TAG_PageTableRow=2
Co-authored-by: Cursor <cursoragent@cursor.com>
Prevent the device from dropping to 10MHz CPU during first-time chapter
indexing, cover prerendering, and other CPU-intensive reader operations.
Three issues addressed:
- ActivityWithSubactivity now delegates preventAutoSleep() and
skipLoopDelay() to the active subactivity, so EpubReaderActivity's
signal is visible through the ReaderActivity wrapper
- Added post-loop() re-check of preventAutoSleep() in main.cpp to
catch activity transitions that happen mid-loop
- EpubReaderActivity uses both !section and a loadingSection flag to
cover the full duration from activity entry through section file
creation; TxtReaderActivity uses !initialized similarly
Also syncs HalPowerManager.cpp log messages with upstream PR #852.
Co-authored-by: Cursor <cursoragent@cursor.com>
Replace the "[Table omitted]" placeholder with full table rendering:
- Two-pass layout: buffer table content during SAX parsing, then
calculate column widths and lay out cells after </table> closes
- Colspan support for cells spanning multiple columns
- Forced line breaks within cells (<br>, <p>, <div> etc.)
- Center-align full-width spanning rows (section headers/titles)
- Width hints from HTML attributes and CSS (col, td, th width)
- Two-pass fair-share column width distribution that prevents
narrow columns from being excessively squeezed
- Double-encoded entity handling
- PageTableRow with grid-line rendering and serialization support
- Asymmetric vertical cell padding to balance font leading
Co-authored-by: Cursor <cursoragent@cursor.com>
## Summary
Closes#766. Thank you for the help @bramschulting!
**What is the goal of this PR?**
- First and foremost, fix issue #766.
- Through working on that, I realized the current CSS parsing/loading
code can be improved dramatically for large files and still had
additional performance improvements to be made, even with EPUBs with
small CSS.
**What changes are included?**
- Stream CSS parsing and reuse normalization buffers to cut allocations
- Add rule limits and selector validation to release rules and free up
memory when needed
- Skip CSS parsing/loading entirely when "Book's Embedded Style" is off
## Additional Context
- My test EPUB has been updated
[here](https://github.com/jdk2pq/css-test-epub) to include a very large
CSS file to test this out
---
### 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**_, Codex
Add OMIT_BOOKERLY, OMIT_NOTOSANS, OMIT_OPENDYSLEXIC flags to
selectively exclude font families, and OMIT_HYPH_DE/EN/ES/FR/IT/RU
flags to exclude individual hyphenation language tries.
The mod build environment excludes OpenDyslexic (~1.03 MB) and all
hyphenation tries (~282 KB), reducing flash usage by ~1.3 MB.
Font Family setting switched from Enum to DynamicEnum with
index-to-value mapping to handle arbitrary font exclusion without
breaking the settings UI or persisted values.
Co-authored-by: Cursor <cursoragent@cursor.com>