diff options
Diffstat (limited to 'src/gpu/effects/GrConfigConversionEffect.cpp')
| -rw-r--r-- | src/gpu/effects/GrConfigConversionEffect.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/gpu/effects/GrConfigConversionEffect.cpp b/src/gpu/effects/GrConfigConversionEffect.cpp index 668423d8d2..2cf7919543 100644 --- a/src/gpu/effects/GrConfigConversionEffect.cpp +++ b/src/gpu/effects/GrConfigConversionEffect.cpp @@ -20,14 +20,17 @@ public: const GrConfigConversionEffect& cce = args.fFp.cast<GrConfigConversionEffect>(); GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; + // Use highp throughout the shader to avoid some precision issues on specific GPUs. + fragBuilder->elevateDefaultPrecision(kHigh_GrSLPrecision); + if (nullptr == args.fInputColor) { // could optimize this case, but we aren't for now. - args.fInputColor = "half4(1)"; + args.fInputColor = "float4(1)"; } // Aggressively round to the nearest exact (N / 255) floating point value. This lets us // find a round-trip preserving pair on some GPUs that do odd byte to float conversion. - fragBuilder->codeAppendf("half4 color = floor(%s * 255.0 + 0.5) / 255.0;", args.fInputColor); + fragBuilder->codeAppendf("float4 color = floor(%s * 255.0 + 0.5) / 255.0;", args.fInputColor); switch (cce.pmConversion()) { case GrConfigConversionEffect::kToPremul_PMConversion: @@ -37,7 +40,7 @@ public: case GrConfigConversionEffect::kToUnpremul_PMConversion: fragBuilder->codeAppend( - "color.rgb = color.a <= 0.0 ? half3(0,0,0) : floor(color.rgb / color.a * 255.0 + 0.5) / 255.0;"); + "color.rgb = color.a <= 0.0 ? float3(0,0,0) : floor(color.rgb / color.a * 255.0 + 0.5) / 255.0;"); break; default: |