Skip Gamma and Gamut conversions for BT.709->SRGB
This introduces a new field 'doYuvToRgbConversionOnly' in
ExternalTextureParams to have the WGSL only do yuv->rgb conversion for
better performance. User studies shows that users don't really care
about the Gamma difference between 2.4 and 2.2.
https://source.chromium.org/chromium/chromium/src/+/main:ui/gfx/color_space.cc;l=1022;drc=a1dbb594a6741a400db35fe3678e77bad2504ea4
Bug: dawn:1082
Bug: dawn:1466
Change-Id: I61c0fe65c5969d8a61c267c202c8dd64c259ed8a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/92901
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jie A Chen <jie.a.chen@intel.com>
diff --git a/dawn.json b/dawn.json
index 0c51df3..f6cac03 100644
--- a/dawn.json
+++ b/dawn.json
@@ -1330,6 +1330,7 @@
{"name": "label", "type": "char", "annotation": "const*", "length": "strlen", "optional": true},
{"name": "plane 0", "type": "texture view"},
{"name": "plane 1", "type": "texture view", "optional": true},
+ {"name": "do yuv to rgb conversion only", "type": "bool", "default": "false"},
{"name": "yuv to rgb conversion matrix", "type": "float", "annotation": "const*",
"length": 12, "optional": true},
{"name": "src transfer function parameters", "type": "float", "annotation": "const*",
