19004eefaa
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>
61 lines
2.3 KiB
C++
61 lines
2.3 KiB
C++
#include <HalDisplay.h>
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#include <HalGPIO.h>
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#define SD_SPI_MISO 7
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HalDisplay::HalDisplay() : einkDisplay(EPD_SCLK, EPD_MOSI, EPD_CS, EPD_DC, EPD_RST, EPD_BUSY) {}
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HalDisplay::~HalDisplay() {}
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void HalDisplay::begin() { einkDisplay.begin(); }
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void HalDisplay::clearScreen(uint8_t color) const { einkDisplay.clearScreen(color); }
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void HalDisplay::drawImage(const uint8_t* imageData, uint16_t x, uint16_t y, uint16_t w, uint16_t h,
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bool fromProgmem) const {
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einkDisplay.drawImage(imageData, x, y, w, h, fromProgmem);
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}
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EInkDisplay::RefreshMode convertRefreshMode(HalDisplay::RefreshMode mode) {
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switch (mode) {
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case HalDisplay::FULL_REFRESH:
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return EInkDisplay::FULL_REFRESH;
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case HalDisplay::HALF_REFRESH:
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return EInkDisplay::HALF_REFRESH;
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case HalDisplay::FAST_REFRESH:
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default:
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return EInkDisplay::FAST_REFRESH;
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}
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}
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void HalDisplay::displayBuffer(HalDisplay::RefreshMode mode, bool turnOffScreen) {
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einkDisplay.displayBuffer(convertRefreshMode(mode), turnOffScreen);
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}
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// EXPERIMENTAL: Display only a rectangular region
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void HalDisplay::displayWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h,
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HalDisplay::RefreshMode mode, bool turnOffScreen) {
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(void)mode; // EInkDisplay::displayWindow does not take mode yet
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einkDisplay.displayWindow(x, y, w, h, turnOffScreen);
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}
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void HalDisplay::refreshDisplay(HalDisplay::RefreshMode mode, bool turnOffScreen) {
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einkDisplay.refreshDisplay(convertRefreshMode(mode), turnOffScreen);
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}
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void HalDisplay::deepSleep() { einkDisplay.deepSleep(); }
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uint8_t* HalDisplay::getFrameBuffer() const { return einkDisplay.getFrameBuffer(); }
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void HalDisplay::copyGrayscaleBuffers(const uint8_t* lsbBuffer, const uint8_t* msbBuffer) {
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einkDisplay.copyGrayscaleBuffers(lsbBuffer, msbBuffer);
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}
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void HalDisplay::copyGrayscaleLsbBuffers(const uint8_t* lsbBuffer) { einkDisplay.copyGrayscaleLsbBuffers(lsbBuffer); }
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void HalDisplay::copyGrayscaleMsbBuffers(const uint8_t* msbBuffer) { einkDisplay.copyGrayscaleMsbBuffers(msbBuffer); }
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void HalDisplay::cleanupGrayscaleBuffers(const uint8_t* bwBuffer) { einkDisplay.cleanupGrayscaleBuffers(bwBuffer); }
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void HalDisplay::displayGrayBuffer(bool turnOffScreen) { einkDisplay.displayGrayBuffer(turnOffScreen); }
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