diff options
| author | Yong He <yonghe@google.com> | 2019-01-25 17:44:24 -0800 |
|---|---|---|
| committer | Yong He <yonghe@google.com> | 2019-01-25 18:11:57 -0800 |
| commit | eefe2539373a2e17eda2f11c420908c0aebcac6d (patch) | |
| tree | d56d36118b83ba23cc1b817035ab4f5b54034c99 /source/slang/core.meta.slang | |
| parent | 864c38ee72991f414f2478ccacb462bfb11b4bca (diff) | |
Add GLSL translation rules for `SampleCmp`, `asint` and `asfloat`.
Diffstat (limited to 'source/slang/core.meta.slang')
| -rw-r--r-- | source/slang/core.meta.slang | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/source/slang/core.meta.slang b/source/slang/core.meta.slang index 0e8458218..e6bad3f50 100644 --- a/source/slang/core.meta.slang +++ b/source/slang/core.meta.slang @@ -875,15 +875,22 @@ for (int tt = 0; tt < kBaseTextureTypeCount; ++tt) sb << "float" << kBaseTextureTypes[tt].coordCount + isArray << " location, float bias, "; sb << "constexpr int" << kBaseTextureTypes[tt].coordCount << " offset);\n"; } - - // `SampleCmp()` and `SampleCmpLevelZero` - sb << "float SampleCmp(SamplerComparisonState s, "; - sb << "float" << kBaseTextureTypes[tt].coordCount + isArray << " location, "; - sb << "float compareValue"; - sb << ");\n"; - int baseCoordCount = kBaseTextureTypes[tt].coordCount; int arrCoordCount = baseCoordCount + isArray; + if (arrCoordCount <= 3) + { + // `SampleCmp()` and `SampleCmpLevelZero` + sb << "__target_intrinsic(glsl, \"texture($p, vec" << arrCoordCount + 1 << "($2, $3))\")"; + sb << "float SampleCmp(SamplerComparisonState s, "; + sb << "float" << kBaseTextureTypes[tt].coordCount + isArray << " location, "; + sb << "float compareValue"; + sb << ");\n"; + sb << "__target_intrinsic(glsl, \"texture($p, vec" << arrCoordCount + 1 << "($2, $3))\")"; + sb << "float SampleCmpLevelZero(SamplerComparisonState s, "; + sb << "float" << kBaseTextureTypes[tt].coordCount + isArray << " location, "; + sb << "float compareValue"; + sb << ");\n"; + } if (arrCoordCount < 3) { int extCoordCount = arrCoordCount + 1; @@ -923,10 +930,7 @@ for (int tt = 0; tt < kBaseTextureTypeCount; ++tt) sb << ", vec" << baseCoordCount << "(0.0)"; sb << ")$z\")\n"; } - sb << "float SampleCmpLevelZero(SamplerComparisonState s, "; - sb << "float" << kBaseTextureTypes[tt].coordCount + isArray << " location, "; - sb << "float compareValue"; - sb << ");\n"; + if( baseShape != TextureFlavor::Shape::ShapeCube ) { |