mirror of
https://github.com/daveallie/crosspoint-reader.git
synced 2026-02-04 14:47:37 +03:00
9b40d1cb32
Two optimizations that provide ~2.4x speedup: 1. Line-based grayscale conversion: process entire source row sequentially before sampling, improving cache locality and reducing function call overhead 2. Bresenham-style integer stepping: replace per-pixel floating-point division with integer accumulator for nearest-neighbor scaling Benchmark results (ESP32-C3, 8-bit indexed PNGs): - Scale 1.0 images: ~2.7x faster - Scaled images: ~1.9x faster - Total render time: 4060ms -> 1705ms |
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|---|---|---|
| .. | ||
| EpdFont | ||
| Epub | ||
| expat | ||
| FsHelpers | ||
| GfxRenderer | ||
| hal | ||
| JpegToBmpConverter | ||
| KOReaderSync | ||
| miniz | ||
| OpdsParser | ||
| picojpeg | ||
| Serialization | ||
| Txt | ||
| Utf8 | ||
| Xtc | ||
| ZipFile | ||
| README | ||
This directory is intended for project specific (private) libraries.
PlatformIO will compile them to static libraries and link into the executable file.
The source code of each library should be placed in a separate directory
("lib/your_library_name/[Code]").
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
Example contents of `src/main.c` using Foo and Bar:
```
#include <Foo.h>
#include <Bar.h>
int main (void)
{
...
}
```
The PlatformIO Library Dependency Finder will find automatically dependent
libraries by scanning project source files.
More information about PlatformIO Library Dependency Finder
- https://docs.platformio.org/page/librarymanager/ldf.html