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feat: add HalDisplay and HalGPIO (#522)

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## 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**
This commit is contained in:
Xuan-Son Nguyen
2026-01-27 18:50:15 +01:00
committed by GitHub
parent 172916afd4
commit da4d3b5ea5
14 changed files with 322 additions and 148 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/activities/boot_sleep/SleepActivity.cpp
View File

@@ -133,7 +133,7 @@ void SleepActivity::renderDefaultSleepScreen() const {
renderer.invertScreen();
}
renderer.displayBuffer(EInkDisplay::HALF_REFRESH);
renderer.displayBuffer(HalDisplay::HALF_REFRESH);
}
void SleepActivity::renderBitmapSleepScreen(const Bitmap& bitmap) const {
@@ -189,7 +189,7 @@ void SleepActivity::renderBitmapSleepScreen(const Bitmap& bitmap) const {
renderer.invertScreen();
}
renderer.displayBuffer(EInkDisplay::HALF_REFRESH);
renderer.displayBuffer(HalDisplay::HALF_REFRESH);
if (hasGreyscale) {
bitmap.rewindToData();
@@ -280,5 +280,5 @@ void SleepActivity::renderCoverSleepScreen() const {
void SleepActivity::renderBlankSleepScreen() const {
renderer.clearScreen();
renderer.displayBuffer(EInkDisplay::HALF_REFRESH);
renderer.displayBuffer(HalDisplay::HALF_REFRESH);
}

4
src/activities/reader/EpubReaderActivity.cpp
View File

@@ -345,7 +345,7 @@ void EpubReaderActivity::renderScreen() {
auto progressCallback = [this, barX, barY, barWidth, barHeight](int progress) {
const int fillWidth = (barWidth - 2) * progress / 100;
renderer.fillRect(barX + 1, barY + 1, fillWidth, barHeight - 2, true);
renderer.displayBuffer(EInkDisplay::FAST_REFRESH);
renderer.displayBuffer(HalDisplay::FAST_REFRESH);
};
if (!section->createSectionFile(SETTINGS.getReaderFontId(), SETTINGS.getReaderLineCompression(),
@@ -428,7 +428,7 @@ void EpubReaderActivity::renderContents(std::unique_ptr<Page> page, const int or
page->render(renderer, SETTINGS.getReaderFontId(), orientedMarginLeft, orientedMarginTop);
renderStatusBar(orientedMarginRight, orientedMarginBottom, orientedMarginLeft);
if (pagesUntilFullRefresh <= 1) {
renderer.displayBuffer(EInkDisplay::HALF_REFRESH);
renderer.displayBuffer(HalDisplay::HALF_REFRESH);
pagesUntilFullRefresh = SETTINGS.getRefreshFrequency();
} else {
renderer.displayBuffer();

4
src/activities/reader/TxtReaderActivity.cpp
View File

@@ -256,7 +256,7 @@ void TxtReaderActivity::buildPageIndex() {
// Fill progress bar
const int fillWidth = (barWidth - 2) * progressPercent / 100;
renderer.fillRect(barX + 1, barY + 1, fillWidth, barHeight - 2, true);
renderer.displayBuffer(EInkDisplay::FAST_REFRESH);
renderer.displayBuffer(HalDisplay::FAST_REFRESH);
}
// Yield to other tasks periodically
@@ -484,7 +484,7 @@ void TxtReaderActivity::renderPage() {
renderStatusBar(orientedMarginRight, orientedMarginBottom, orientedMarginLeft);
if (pagesUntilFullRefresh <= 1) {
renderer.displayBuffer(EInkDisplay::HALF_REFRESH);
renderer.displayBuffer(HalDisplay::HALF_REFRESH);
pagesUntilFullRefresh = SETTINGS.getRefreshFrequency();
} else {
renderer.displayBuffer();

4
src/activities/reader/XtcReaderActivity.cpp
View File

@@ -276,7 +276,7 @@ void XtcReaderActivity::renderPage() {
// Display BW with conditional refresh based on pagesUntilFullRefresh
if (pagesUntilFullRefresh <= 1) {
renderer.displayBuffer(EInkDisplay::HALF_REFRESH);
renderer.displayBuffer(HalDisplay::HALF_REFRESH);
pagesUntilFullRefresh = SETTINGS.getRefreshFrequency();
} else {
renderer.displayBuffer();
@@ -356,7 +356,7 @@ void XtcReaderActivity::renderPage() {
// Display with appropriate refresh
if (pagesUntilFullRefresh <= 1) {
renderer.displayBuffer(EInkDisplay::HALF_REFRESH);
renderer.displayBuffer(HalDisplay::HALF_REFRESH);
pagesUntilFullRefresh = SETTINGS.getRefreshFrequency();
} else {
renderer.displayBuffer();

6
src/activities/util/FullScreenMessageActivity.h
View File

@@ -1,6 +1,6 @@
#pragma once
#include <EInkDisplay.h>
#include <EpdFontFamily.h>
#include <HalDisplay.h>
#include <string>
#include <utility>
@@ -10,12 +10,12 @@
class FullScreenMessageActivity final : public Activity {
std::string text;
EpdFontFamily::Style style;
EInkDisplay::RefreshMode refreshMode;
HalDisplay::RefreshMode refreshMode;
public:
explicit FullScreenMessageActivity(GfxRenderer& renderer, MappedInputManager& mappedInput, std::string text,
const EpdFontFamily::Style style = EpdFontFamily::REGULAR,
const EInkDisplay::RefreshMode refreshMode = EInkDisplay::FAST_REFRESH)
const HalDisplay::RefreshMode refreshMode = HalDisplay::FAST_REFRESH)
: Activity("FullScreenMessage", renderer, mappedInput),
text(std::move(text)),
style(style),