Merge "Relax mediump interpolation accuracy requirements and clarify thresholds" into lmp-sprout-dev
diff --git a/modules/gles3/functional/es3fFragmentOutputTests.cpp b/modules/gles3/functional/es3fFragmentOutputTests.cpp
index 319dcc9..f7fb0ad 100644
--- a/modules/gles3/functional/es3fFragmentOutputTests.cpp
+++ b/modules/gles3/functional/es3fFragmentOutputTests.cpp
@@ -825,21 +825,23 @@
deUint32 precThreshold = 0; //!< Threshold computed based on output type precision
UVec4 finalThreshold;
+ // 1 ULP rounding error is allowed for smaller floating-point formats
switch (format.type)
{
- case tcu::TextureFormat::FLOAT: formatThreshold = UVec4(4); break;
- case tcu::TextureFormat::HALF_FLOAT: formatThreshold = UVec4((1<<13) + 4); break;
- case tcu::TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: formatThreshold = UVec4((1<<17) + 4, (1<<17)+4, (1<<18)+4, 4); break;
+ case tcu::TextureFormat::FLOAT: formatThreshold = UVec4(0); break;
+ case tcu::TextureFormat::HALF_FLOAT: formatThreshold = UVec4((1<<(23-10))); break;
+ case tcu::TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: formatThreshold = UVec4((1<<(23-6)), (1<<(23-6)), (1<<(23-5)), 0); break;
default:
DE_ASSERT(false);
break;
}
+ // 4 ULP interpolation
switch (outPrecision)
{
- case glu::PRECISION_LOWP: precThreshold = (1<<21); break;
- case glu::PRECISION_MEDIUMP: precThreshold = (1<<13); break;
- case glu::PRECISION_HIGHP: precThreshold = 0; break;
+ case glu::PRECISION_LOWP: precThreshold = (4<<(23-8)); break;
+ case glu::PRECISION_MEDIUMP: precThreshold = (4<<(23-10)); break;
+ case glu::PRECISION_HIGHP: precThreshold = 4; break;
default:
DE_ASSERT(false);
}
