diff options
| author |  csmartdalton <csmartdalton@google.com> | 2016-06-15 12:42:13 -0700 |
|---|---|---|
| committer |  Commit bot <commit-bot@chromium.org> | 2016-06-15 12:42:14 -0700 |
| commit | f848c9c456cc70045818a16fa4893a932f494d73 (patch) | |
| tree | 99c36e0b9c4f5dd66e6ed4dcbac4c5b1b20209cc /src/gpu/gl | |
| parent | 04d35bd80dde7cace866781037cbbdcab14ab683 (diff) | |
Workaround NVIDIA driver bug with NV_sample_mask_override_coverage
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2070133002
Review-Url: https://codereview.chromium.org/2070133002
Diffstat (limited to 'src/gpu/gl')
| -rw-r--r-- | src/gpu/gl/GrGLCaps.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/gpu/gl/GrGLCaps.cpp b/src/gpu/gl/GrGLCaps.cpp index 5370f792c6..9dd0fbe36e 100644 --- a/src/gpu/gl/GrGLCaps.cpp +++ b/src/gpu/gl/GrGLCaps.cpp @@ -696,9 +696,12 @@ void GrGLCaps::initGLSL(const GrGLContextInfo& ctxInfo) { } } - if (glslCaps->fSampleVariablesSupport) { + if (glslCaps->fSampleVariablesSupport && + ctxInfo.hasExtension("GL_NV_sample_mask_override_coverage")) { + // Pre-361 NVIDIA has a bug with NV_sample_mask_override_coverage. glslCaps->fSampleMaskOverrideCoverageSupport = - ctxInfo.hasExtension("GL_NV_sample_mask_override_coverage"); + kNVIDIA_GrGLDriver != ctxInfo.driver() || + ctxInfo.driverVersion() >= GR_GL_DRIVER_VER(361,00); } // Adreno GPUs have a tendency to drop tiles when there is a divide-by-zero in a shader |