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| author |  Chris Dalton <csmartdalton@google.com> | 2018-07-27 12:38:35 -0600 |
|---|---|---|
| committer |  Skia Commit-Bot <skia-commit-bot@chromium.org> | 2018-07-27 19:04:46 +0000 |
| commit | 49d14e98fe43fdff818e7571c1a61cd5045fedc0 (patch) | |
| tree | 18d48cd1922c646b6dafa851fbe214c8904aef87 /src/sksl/sksl_frag.inc | |
| parent | f4f6bbfadac327619a3832acad9c8afe06629b55 (diff) | |
sksl: Add a "sk_Clockwise" built-in
This allows us to identify clockwise-winding triangles, in terms of
Skia device space, in all backends and with all render target origins.
Bug: skia:
Change-Id: I220e1c459e0129d1cc4dee6458ef94277fbedd21
Reviewed-on: https://skia-review.googlesource.com/142662
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Diffstat (limited to 'src/sksl/sksl_frag.inc')
| -rw-r--r-- | src/sksl/sksl_frag.inc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/sksl/sksl_frag.inc b/src/sksl/sksl_frag.inc index 429d05a73e..202747a815 100644 --- a/src/sksl/sksl_frag.inc +++ b/src/sksl/sksl_frag.inc @@ -2,7 +2,9 @@ STRINGIFY( // defines built-in interfaces supported by SkiaSL fragment shaders +// See "enum SpvBuiltIn_" in ./spirv.h layout(builtin=15) in float4 sk_FragCoord; +layout(builtin=17) in bool sk_Clockwise; // Similar to gl_FrontFacing, but defined in device space. layout(builtin=3) float sk_ClipDistance[1]; // 9999 is a temporary value that causes us to ignore these declarations beyond |