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Book cover sleep screen (#89)

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## Summary

* Fix issue with 2-bit bmp rendering
* Add support generate book cover BMP from JPG and use as sleep screen

## Additional Context

* It does not support other image formats beyond JPG at this point
* Something is cooked with my JpegToBmpConverter logic, it generates
weird interlaced looking images for some JPGs

| Book 1 | Book 2|
| --- | --- |
|
![IMG_5653](https://github.com/user-attachments/assets/49bbaeaa-b171-44c7-a68d-14cbe42aef03)
|
![IMG_5652](https://github.com/user-attachments/assets/7db88d70-e09a-49b0-a9a0-4cc729b4ca0c)
|
This commit is contained in:
Dave Allie
2025-12-21 18:42:06 +11:00
committed by GitHub
parent 958508eb6b
commit 955c78de64
10 changed files with 182 additions and 71 deletions
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4
src/CrossPointSettings.cpp
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@@ -23,7 +23,7 @@ bool CrossPointSettings::saveToFile() const {
std::ofstream outputFile(SETTINGS_FILE);
serialization::writePod(outputFile, SETTINGS_FILE_VERSION);
serialization::writePod(outputFile, SETTINGS_COUNT);
serialization::writePod(outputFile, whiteSleepScreen);
serialization::writePod(outputFile, sleepScreen);
serialization::writePod(outputFile, extraParagraphSpacing);
serialization::writePod(outputFile, shortPwrBtn);
outputFile.close();
@@ -54,7 +54,7 @@ bool CrossPointSettings::loadFromFile() {
// load settings that exist
uint8_t settingsRead = 0;
do {
serialization::readPod(inputFile, whiteSleepScreen);
serialization::readPod(inputFile, sleepScreen);
if (++settingsRead >= fileSettingsCount) break;
serialization::readPod(inputFile, extraParagraphSpacing);
if (++settingsRead >= fileSettingsCount) break;