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ImageData can track whether they're meant to be loaded into a Texture with a non-sRGB format when gamma correct rendering is enabled.

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Fixes #1556.

* Add ImageData/CompressedImageData:setLinear and ImageData/CompressedImageData:isLinear.
  The flag is used as a hint when loading a texture from the data to determine if the format should not be treated as sRGB-encoded. The 'linear' flag in newImage overrides this.

* love.graphics.readbackTexture automatically sets the linear flag on ImageData it returns when the texture's format is linear.
  This allows an ImageData generated via readback to be fed back into a new Texture and the format will match the original Canvas.

* Also clean up some image decoding code.
This commit is contained in:
Sasha Szpakowski
2023-10-14 20:48:21 -03:00
parent bd55100d56
commit 8c13943f64
26 changed files with 149 additions and 105 deletions
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src/modules/image/ImageData.h
+1 -2
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@@ -62,7 +62,7 @@ public:
static love::Type type;
ImageData(Data *data);
ImageData(int width, int height, PixelFormat format = PIXELFORMAT_RGBA8_UNORM);
ImageData(int width, int height, PixelFormat format);
ImageData(int width, int height, PixelFormat format, void *data, bool own);
ImageData(const ImageData &c);
virtual ~ImageData();
@@ -116,7 +116,6 @@ public:
ImageData *clone() const override;
void *getData() const override;
size_t getSize() const override;
bool isSRGB() const override;
size_t getPixelSize() const;