Hajime Hoshi a4e9a05b14 ebiten: reland: use Kage shaders instead of built-in shaders for a color matrix ... This replaces the built-in shaders with Kage shadres. This is a refactoring and doesn't degrade performance: ``` go test -bench=^BenchmarkColorMScale$ -run=^$ . -count=5 ``` ``` name old time/op new time/op delta ColorMScale-8 978ns ±15% 1184ns ±46% ~ (p=0.413 n=4+5) ``` A follow-up change to remove the built-in shaders is needed. Closes #2364		2022-10-02 15:35:40 +09:00
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shader.go	ebiten: reland: use Kage shaders instead of built-in shaders for a color matrix	2022-10-02 15:35:40 +09:00