sRGB support in Ganesh. Several pieces:
sRGB support now also requires GL_EXT_texture_sRGB_decode, which allows
us to disable sRGB -> Linear conversion when reading textures. This gives
us an easy way to support "legacy" L32 mode. We disable decoding based on
the pixel config of the render target. Textures can override that behavior
(specifically for format-conversion draws where we want that behavior).
Added sBGRA pixel config, which is not-really-a-format. It's just sRGBA
internally, and the external format is BGR order, so TexImage calls will
swizzle correctly. This lets us interact with sRGB raster surfaces on BGR
platforms.
Devices without sRGB support behave like they always have: conversion from
color type and profile type ignores sRGB and always returns linear pixel
configs.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1789663002
Review URL: https://codereview.chromium.org/1789663002
diff --git a/src/gpu/effects/GrConfigConversionEffect.cpp b/src/gpu/effects/GrConfigConversionEffect.cpp
index dc41203..bedcc78 100644
--- a/src/gpu/effects/GrConfigConversionEffect.cpp
+++ b/src/gpu/effects/GrConfigConversionEffect.cpp
@@ -98,7 +98,7 @@
const GrSwizzle& swizzle,
PMConversion pmConversion,
const SkMatrix& matrix)
- : INHERITED(texture, matrix)
+ : INHERITED(texture, matrix, GrTextureParams::ClampNoFilterForceAllowSRGB())
, fSwizzle(swizzle)
, fPMConversion(pmConversion) {
this->initClassID<GrConfigConversionEffect>();
@@ -296,7 +296,8 @@
// If we returned a GrConfigConversionEffect that was equivalent to a GrSimpleTextureEffect
// then we may pollute our texture cache with redundant shaders. So in the case that no
// conversions were requested we instead return a GrSimpleTextureEffect.
- return GrSimpleTextureEffect::Create(texture, matrix);
+ return GrSimpleTextureEffect::Create(texture, matrix,
+ GrTextureParams::ClampNoFilterForceAllowSRGB());
} else {
if (kRGBA_8888_GrPixelConfig != texture->config() &&
kBGRA_8888_GrPixelConfig != texture->config() &&