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rewamped the codecs, make it more clear about which common formats we support and how, important ones first too

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Pierre Joye 2021-08-24 10:22:47 +07:00
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commit 69cfa7bed5
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README.md
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@ -32,23 +32,29 @@ Please visit our [homepage](https://www.libgd.org/) for more details.
## Supported Image Formats
GD has builtin support for:
GD has support for:
* [BMP](https://en.wikipedia.org/wiki/BMP_file_format)
* [GIF](https://en.wikipedia.org/wiki/GIF)
* [TGA](https://en.wikipedia.org/wiki/Truevision_TGA)
* [WBMP](https://en.wikipedia.org/wiki/Wireless_Application_Protocol_Bitmap_Format)
It also has optional support for more formats via external libraries:
* [AVIF](https://en.wikipedia.org/wiki/AV1#AV1_Image_File_Format_(AVIF)) via [libavif](https://github.com/AOMediaCodec/libavif)
* [HEIF](https://en.wikipedia.org/wiki/High_Efficiency_Image_File_Format) via [libheif](https://github.com/strukturag/libheif/)
* This includes [AVIF](https://en.wikipedia.org/wiki/AV1#AV1_Image_File_Format_%28AVIF%29) read support if your system's `libheif` has AV1 decoding.
* [WebP](https://en.wikipedia.org/wiki/WebP) via [libwebp](https://developers.google.com/speed/webp/)
* [JPEG](https://en.wikipedia.org/wiki/JPEG) via [IJG/libjpeg](http://www.ijg.org/) or [libjpeg-turbo](http://libjpeg-turbo.virtualgl.org/)
* Does not include [JPEG 2000](https://en.wikipedia.org/wiki/JPEG_2000)
* [PNG](https://en.wikipedia.org/wiki/Portable_Network_Graphics) via [libpng](http://www.libpng.org/)
* [AVIF](https://en.wikipedia.org/wiki/AV1#AV1_Image_File_Format_(AVIF)) via [libavif](https://github.com/AOMediaCodec/libavif)
* This includes [AVIF](https://en.wikipedia.org/wiki/AV1#AV1_Image_File_Format_%28AVIF%29) read support if your system's `libheif` has AV1 decoding.
* [HEIF](https://en.wikipedia.org/wiki/High_Efficiency_Image_File_Format) via [libheif](https://github.com/strukturag/libheif/)
* [TIFF](https://en.wikipedia.org/wiki/Tagged_Image_File_Format) via [libtiff](http://www.libtiff.org/)
* [WebP](https://en.wikipedia.org/wiki/WebP) via [libwebp](https://developers.google.com/speed/webp/)
* [BMP](https://en.wikipedia.org/wiki/BMP_file_format) (builtin)
* [GIF](https://en.wikipedia.org/wiki/GIF) (builtin)
* [TGA](https://en.wikipedia.org/wiki/Truevision_TGA) (builtin)
* [WBMP](https://en.wikipedia.org/wiki/Wireless_Application_Protocol_Bitmap_Format) (builtin)
* [XPM](https://en.wikipedia.org/wiki/X_PixMap) via [libXpm](http://xorg.freedesktop.org/)
Besides that, GD depends on some external libraries, which are all optional