Xteink-X4-crosspoint-reader/lib
Eunchurn Park 9aa305700c
Add Bayer 4x4 ordered dithering for EPUB cover images
Replace simple threshold-based grayscale quantization with ordered
dithering using a 4x4 Bayer matrix. This eliminates color banding
artifacts and produces smoother gradients on e-ink display.

- Add 4x4 Bayer dithering matrix for 16-level threshold patterns
- Modify grayscaleTo2Bit() to use pixel position for dithering
- Simulates smooth grayscale transitions in BW mode without flicker
2025-12-24 03:45:34 +09:00
..
EpdFont Fix: restores cyrillic glyphs to Pixel Arial font (#70) 2025-12-21 19:01:11 +11:00
Epub Standardize File handling with FsHelpers (#110) 2025-12-23 14:14:10 +11:00
expat Add expat and swap out EPUB HTML parser (#2) 2025-12-06 20:57:24 +11:00
FsHelpers Standardize File handling with FsHelpers (#110) 2025-12-23 14:14:10 +11:00
GfxRenderer Book cover sleep screen (#89) 2025-12-21 18:42:06 +11:00
JpegToBmpConverter Add Bayer 4x4 ordered dithering for EPUB cover images 2025-12-24 03:45:34 +09:00
miniz Stream inflated EPUB HTMLs down to disk instead of inflating in memory (#4) 2025-12-08 00:39:17 +11:00
picojpeg Add JPG image support (#23) 2025-12-21 17:15:17 +11:00
Serialization Standardize File handling with FsHelpers (#110) 2025-12-23 14:14:10 +11:00
Utf8 Public release 2025-12-03 22:06:45 +11:00
ZipFile Keep ZipFile open to speed up getting file stats. (#76) 2025-12-21 14:38:51 +11:00
README Public release 2025-12-03 22:06:45 +11:00

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The source code of each library should be placed in a separate directory
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For example, see the structure of the following example libraries `Foo` and `Bar`:

|--lib
|  |
|  |--Bar
|  |  |--docs
|  |  |--examples
|  |  |--src
|  |     |- Bar.c
|  |     |- Bar.h
|  |  |- library.json (optional. for custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
|  |
|  |--Foo
|  |  |- Foo.c
|  |  |- Foo.h
|  |
|  |- README --> THIS FILE
|
|- platformio.ini
|--src
   |- main.c

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```
#include <Foo.h>
#include <Bar.h>

int main (void)
{
  ...
}

```

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