snark13/Xteink-X4-crosspoint-reader
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Cover mode setting "extend", extension in x.

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This commit is contained in:
Jonas Diemer 2026-01-13 10:51:56 +01:00
parent 3ae73098d8
commit 757753df72
4 changed files with 41 additions and 6 deletions
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36
lib/GfxRenderer/GfxRenderer.cpp
View File

@ -234,8 +234,11 @@ void GfxRenderer::drawBitmap(const Bitmap& bitmap, const int x, const int y, con
// draw extended pixels
/// amount of pixels taken from bitmap and repeated to extend
int extendY = 20;
int extendX = 20; // The width of the strip to be mirrored
int drawExtY = 0;
if (extend) {
int imgHeight = std::floor(scale * (bitmap.getHeight() - cropPixY));
int imgWidth = std::floor(scale * (bitmap.getWidth() - cropPixX));
// 1. TOP EXTENSION
// Check if the current pixel is within the strip to be mirrored
if (screenY >= y && screenY < y + extendY) {
@ -256,7 +259,6 @@ void GfxRenderer::drawBitmap(const Bitmap& bitmap, const int x, const int y, con
}
// 2. BOTTOM EXTENSION
int imgHeight = std::floor(scale * (bitmap.getHeight() - cropPixY));
int imgBottom = y + imgHeight;
int gapBottom = getScreenHeight() - imgBottom;
@ -273,6 +275,38 @@ void GfxRenderer::drawBitmap(const Bitmap& bitmap, const int x, const int y, con
if (t2 >= imgBottom && t2 < getScreenHeight()) drawVal(screenX, t2, val);
}
}
// --- 2. LEFT EXTENSION ---
int imgRight = x + imgWidth; // x is the left margin/offset
// If the current pixel is within the leftmost 'extendX' pixels of the image
if (screenX >= x && screenX < x + extendX) {
int numIterations = (x / extendX) + 1;
for (int nx = 0; nx < numIterations; nx++) {
// Mirror Fold (pixel at 'x' maps to 'x-1')
int t1 = x - 1 - (2 * nx * extendX + (screenX - x));
// Reverse Fold
int t2 = x - 1 - (2 * nx * extendX + (2 * extendX - 1 - (screenX - x)));
if (t1 >= 0 && t1 < x) drawVal(t1, screenY, val);
if (t2 >= 0 && t2 < x) drawVal(t2, screenY, val);
}
}
// --- 3. RIGHT EXTENSION ---
int gapRight = getScreenWidth() - imgRight;
// If the current pixel is within the rightmost 'extendX' pixels of the image
if (screenX >= imgRight - extendX && screenX < imgRight) {
int numIterations = (gapRight / extendX) + 1;
for (int nx = 0; nx < numIterations; nx++) {
// Mirror Fold (pixel at 'imgRight-1' maps to 'imgRight')
int t1 = imgRight + (2 * nx * extendX + (imgRight - 1 - screenX));
// Reverse Fold
int t2 = imgRight + (2 * nx * extendX + (2 * extendX - 1 - (imgRight - 1 - screenX)));
if (t1 >= imgRight && t1 < getScreenWidth()) drawVal(t1, screenY, val);
if (t2 >= imgRight && t2 < getScreenWidth()) drawVal(t2, screenY, val);
}
}
}
}
}

2
src/CrossPointSettings.h
View File

@ -17,7 +17,7 @@ class CrossPointSettings {
// Should match with SettingsActivity text
enum SLEEP_SCREEN_MODE { DARK = 0, LIGHT = 1, CUSTOM = 2, COVER = 3, BLANK = 4 };
enum SLEEP_SCREEN_COVER_MODE { FIT = 0, CROP = 1 };
enum SLEEP_SCREEN_COVER_MODE { FIT = 0, CROP = 1, EXTEND = 2 };
// Status bar display type enum
enum STATUS_BAR_MODE { NONE = 0, NO_PROGRESS = 1, FULL = 2 };

7
src/activities/boot_sleep/SleepActivity.cpp
View File

@ -170,22 +170,23 @@ void SleepActivity::renderBitmapSleepScreen(const Bitmap& bitmap) const {
y = (pageHeight - bitmap.getHeight()) / 2;
}
bool extended = SETTINGS.sleepScreenCoverMode == CrossPointSettings::SLEEP_SCREEN_COVER_MODE::EXTEND;
Serial.printf("[%lu] [SLP] drawing to %d x %d\n", millis(), x, y);
renderer.clearScreen();
renderer.drawBitmap(bitmap, x, y, pageWidth, pageHeight, cropX, cropY, true);
renderer.drawBitmap(bitmap, x, y, pageWidth, pageHeight, cropX, cropY, extended);
renderer.displayBuffer(EInkDisplay::HALF_REFRESH);
if (bitmap.hasGreyscale()) {
bitmap.rewindToData();
renderer.clearScreen(0x00);
renderer.setRenderMode(GfxRenderer::GRAYSCALE_LSB);
renderer.drawBitmap(bitmap, x, y, pageWidth, pageHeight, cropX, cropY, true);
renderer.drawBitmap(bitmap, x, y, pageWidth, pageHeight, cropX, cropY, extended);
renderer.copyGrayscaleLsbBuffers();
bitmap.rewindToData();
renderer.clearScreen(0x00);
renderer.setRenderMode(GfxRenderer::GRAYSCALE_MSB);
renderer.drawBitmap(bitmap, x, y, pageWidth, pageHeight, cropX, cropY, true);
renderer.drawBitmap(bitmap, x, y, pageWidth, pageHeight, cropX, cropY, extended);
renderer.copyGrayscaleMsbBuffers();
renderer.displayGrayBuffer();

2
src/activities/settings/SettingsActivity.cpp
View File

@ -17,7 +17,7 @@ constexpr int settingsCount = 19;
const SettingInfo settingsList[settingsCount] = {
// Should match with SLEEP_SCREEN_MODE
SettingInfo::Enum("Sleep Screen", &CrossPointSettings::sleepScreen, {"Dark", "Light", "Custom", "Cover", "None"}),
SettingInfo::Enum("Sleep Screen Cover Mode", &CrossPointSettings::sleepScreenCoverMode, {"Fit", "Crop"}),
SettingInfo::Enum("Sleep Screen Cover Mode", &CrossPointSettings::sleepScreenCoverMode, {"Fit", "Crop", "Extend"}),
SettingInfo::Enum("Status Bar", &CrossPointSettings::statusBar, {"None", "No Progress", "Full"}),
SettingInfo::Enum("Hide Battery %", &CrossPointSettings::hideBatteryPercentage, {"Never", "In Reader", "Always"}),
SettingInfo::Toggle("Extra Paragraph Spacing", &CrossPointSettings::extraParagraphSpacing),