Refactor _Texture to constrain on texel types. (#6115)

* Refactor _Texture to constrain on texel types.

* Fix tests.

* Fix.

* Disable glsl texture test because rhi can't run it correctly.

1 files changed, 192 insertions, 192 deletions

diff --git a/tests/language-feature/capability/intrinsic-texture-ignore-capability.slang b/tests/language-feature/capability/intrinsic-texture-ignore-capability.slang
index 148eff07a..dfdbb7083 100644
--- a/tests/language-feature/capability/intrinsic-texture-ignore-capability.slang
+++ b/tests/language-feature/capability/intrinsic-texture-ignore-capability.slang
@@ -50,19 +50,19 @@ uniform usampler2DArray uniform_usampler2DArray;
 uniform usamplerCubeArray uniform_usamplerCubeArray;
 uniform usamplerBuffer uniform_usamplerBuffer;
 
-__generic<T : __BuiltinFloatingPointType, let N : int>
-bool textureFuncs( Sampler1D<vector<T,N>> gsampler1D
-    , Sampler2D<vector<T,N>> gsampler2D
-    , Sampler2DRect<vector<T,N>> gsampler2DRect
-    , Sampler3D<vector<T,N>> gsampler3D
-    , SamplerCube<vector<T,N>> gsamplerCube
-    , Sampler1DArray<vector<T,N>> gsampler1DArray
-    , Sampler2DArray<vector<T,N>> gsampler2DArray
-    , SamplerCubeArray<vector<T,N>> gsamplerCubeArray
-    , SamplerBuffer<vector<T,N>> gsamplerBuffer
+__generic<T : ITexelElement>
+bool textureFuncs( Sampler1D<T> gsampler1D
+    , Sampler2D<T> gsampler2D
+    , Sampler2DRect<T> gsampler2DRect
+    , Sampler3D<T> gsampler3D
+    , SamplerCube<T> gsamplerCube
+    , Sampler1DArray<T> gsampler1DArray
+    , Sampler2DArray<T> gsampler2DArray
+    , SamplerCubeArray<T> gsamplerCubeArray
+    , SamplerBuffer<T> gsamplerBuffer
 )
 {
-    typealias gvec4 = vector<T,4>;
+    typealias gvec4 = vector<T.Element,4>;
 
     constexpr ivec2 ivec2_0 = ivec2(0);
 
@@ -111,209 +111,209 @@ bool textureFuncs( Sampler1D<vector<T,N>> gsampler1D
         && int(0) == textureQueryLevels(uniform_sampler2DArrayShadow)
         && int(0) == textureQueryLevels(uniform_samplerCubeArrayShadow)
         // 8.9.2. Texel Lookup Functions
-        && gvec4(T(0)) == texture(gsampler1D, float(0))
-        && gvec4(T(0)) == texture(gsampler1D, float(0), float(0))
-        && gvec4(T(0)) == texture(gsampler2D, vec2(0))
-        && gvec4(T(0)) == texture(gsampler2D, vec2(0), float(0))
-        && gvec4(T(0)) == texture(gsampler3D, vec3(0))
-        && gvec4(T(0)) == texture(gsampler3D, vec3(0), float(0))
-        && gvec4(T(0)) == texture(gsamplerCube, vec3(0) )
-        && gvec4(T(0)) == texture(gsamplerCube, vec3(0), float(0))
+        && gvec4(T.Element(0)) == texture(gsampler1D, float(0))
+        && gvec4(T.Element(0)) == texture(gsampler1D, float(0), float(0))
+        && gvec4(T.Element(0)) == texture(gsampler2D, vec2(0))
+        && gvec4(T.Element(0)) == texture(gsampler2D, vec2(0), float(0))
+        && gvec4(T.Element(0)) == texture(gsampler3D, vec3(0))
+        && gvec4(T.Element(0)) == texture(gsampler3D, vec3(0), float(0))
+        && gvec4(T.Element(0)) == texture(gsamplerCube, vec3(0) )
+        && gvec4(T.Element(0)) == texture(gsamplerCube, vec3(0), float(0))
         && float(0) == texture(uniform_sampler1DShadow, vec3(0))
         && float(0) == texture(uniform_sampler1DShadow, vec3(0), float(0))
         && float(0) == texture(uniform_sampler2DShadow, vec3(0))
         && float(0) == texture(uniform_sampler2DShadow, vec3(0), float(0))
         && float(0) == texture(uniform_samplerCubeShadow, vec4(0))
         && float(0) == texture(uniform_samplerCubeShadow, vec4(0), float(0))
-        && gvec4(T(0)) == texture(gsampler2DArray, vec3(0))
-        && gvec4(T(0)) == texture(gsampler2DArray, vec3(0), float(0))
-        && gvec4(T(0)) == texture(gsamplerCubeArray, vec4(0) )
-        && gvec4(T(0)) == texture(gsamplerCubeArray, vec4(0), float(0))
-        && gvec4(T(0)) == texture(gsampler1DArray, vec2(0))
-        && gvec4(T(0)) == texture(gsampler1DArray, vec2(0), float(0))
+        && gvec4(T.Element(0)) == texture(gsampler2DArray, vec3(0))
+        && gvec4(T.Element(0)) == texture(gsampler2DArray, vec3(0), float(0))
+        && gvec4(T.Element(0)) == texture(gsamplerCubeArray, vec4(0) )
+        && gvec4(T.Element(0)) == texture(gsamplerCubeArray, vec4(0), float(0))
+        && gvec4(T.Element(0)) == texture(gsampler1DArray, vec2(0))
+        && gvec4(T.Element(0)) == texture(gsampler1DArray, vec2(0), float(0))
         && float(0) == texture(uniform_sampler1DArrayShadow, vec3(0))
         && float(0) == texture(uniform_sampler1DArrayShadow, vec3(0), float(0))
         && float(0) == texture(uniform_sampler2DArrayShadow, vec4(0))
-        && gvec4(T(0)) == texture(gsampler2DRect, vec2(0))
+        && gvec4(T.Element(0)) == texture(gsampler2DRect, vec2(0))
         && float(0) == texture(uniform_sampler2DRectShadow, vec3(0))
         && float(0) == texture(uniform_samplerCubeArrayShadow, vec4(0), float(0))
-        && gvec4(T(0)) == textureProj(gsampler1D, vec2(0))
-        && gvec4(T(0)) == textureProj(gsampler1D, vec2(0), float(0))
-        && gvec4(T(0)) == textureProj(gsampler1D, vec4(0))
-        && gvec4(T(0)) == textureProj(gsampler1D, vec4(0), float(0))
-        && gvec4(T(0)) == textureProj(gsampler2D, vec3(0))
-        && gvec4(T(0)) == textureProj(gsampler2D, vec3(0), float(0))
-        && gvec4(T(0)) == textureProj(gsampler2D, vec4(0))
-        && gvec4(T(0)) == textureProj(gsampler2D, vec4(0), float(0))
-        && gvec4(T(0)) == textureProj(gsampler3D, vec4(0))
-        && gvec4(T(0)) == textureProj(gsampler3D, vec4(0), float(0))
+        && gvec4(T.Element(0)) == textureProj(gsampler1D, vec2(0))
+        && gvec4(T.Element(0)) == textureProj(gsampler1D, vec2(0), float(0))
+        && gvec4(T.Element(0)) == textureProj(gsampler1D, vec4(0))
+        && gvec4(T.Element(0)) == textureProj(gsampler1D, vec4(0), float(0))
+        && gvec4(T.Element(0)) == textureProj(gsampler2D, vec3(0))
+        && gvec4(T.Element(0)) == textureProj(gsampler2D, vec3(0), float(0))
+        && gvec4(T.Element(0)) == textureProj(gsampler2D, vec4(0))
+        && gvec4(T.Element(0)) == textureProj(gsampler2D, vec4(0), float(0))
+        && gvec4(T.Element(0)) == textureProj(gsampler3D, vec4(0))
+        && gvec4(T.Element(0)) == textureProj(gsampler3D, vec4(0), float(0))
         && float(0) == textureProj(uniform_sampler1DShadow, vec4(0))
         && float(0) == textureProj(uniform_sampler1DShadow, vec4(0), float(0))
         && float(0) == textureProj(uniform_sampler2DShadow, vec4(0))
         && float(0) == textureProj(uniform_sampler2DShadow, vec4(0), float(0))
-        && gvec4(T(0)) == textureProj(gsampler2DRect, vec3(0))
-        && gvec4(T(0)) == textureProj(gsampler2DRect, vec4(0))
+        && gvec4(T.Element(0)) == textureProj(gsampler2DRect, vec3(0))
+        && gvec4(T.Element(0)) == textureProj(gsampler2DRect, vec4(0))
         && float(0) == textureProj(uniform_sampler2DRectShadow, vec4(0))
-        && gvec4(T(0)) == textureLod(gsampler1D, float(0), float(0))
-        && gvec4(T(0)) == textureLod(gsampler2D, vec2(0), float(0))
-        && gvec4(T(0)) == textureLod(gsampler3D, vec3(0), float(0))
-        && gvec4(T(0)) == textureLod(gsamplerCube, vec3(0), float(0))
+        && gvec4(T.Element(0)) == textureLod(gsampler1D, float(0), float(0))
+        && gvec4(T.Element(0)) == textureLod(gsampler2D, vec2(0), float(0))
+        && gvec4(T.Element(0)) == textureLod(gsampler3D, vec3(0), float(0))
+        && gvec4(T.Element(0)) == textureLod(gsamplerCube, vec3(0), float(0))
         && float(0) == textureLod(uniform_sampler2DShadow, vec3(0), float(0))
         && float(0) == textureLod(uniform_sampler1DShadow, vec3(0), float(0))
-        && gvec4(T(0)) == textureLod(gsampler1DArray, vec2(0), float(0))
+        && gvec4(T.Element(0)) == textureLod(gsampler1DArray, vec2(0), float(0))
         && float(0) == textureLod(uniform_sampler1DArrayShadow, vec3(0), float(0))
-        && gvec4(T(0)) == textureLod(gsampler2DArray, vec3(0), float(0))
-        && gvec4(T(0)) == textureLod(gsamplerCubeArray, vec4(0), float(0))
-        && gvec4(T(0)) == textureOffset(gsampler1D, float(0), __LINE__)
-        && gvec4(T(0)) == textureOffset(gsampler1D, float(0), __LINE__, float(0))
-        && gvec4(T(0)) == textureOffset(gsampler2D, vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureOffset(gsampler2D, vec2(0), { __LINE__ }, float(0))
-        && gvec4(T(0)) == textureOffset(gsampler3D, vec3(0), { __LINE__ })
-        && gvec4(T(0)) == textureOffset(gsampler3D, vec3(0), { __LINE__ }, float(0))
+        && gvec4(T.Element(0)) == textureLod(gsampler2DArray, vec3(0), float(0))
+        && gvec4(T.Element(0)) == textureLod(gsamplerCubeArray, vec4(0), float(0))
+        && gvec4(T.Element(0)) == textureOffset(gsampler1D, float(0), __LINE__)
+        && gvec4(T.Element(0)) == textureOffset(gsampler1D, float(0), __LINE__, float(0))
+        && gvec4(T.Element(0)) == textureOffset(gsampler2D, vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureOffset(gsampler2D, vec2(0), { __LINE__ }, float(0))
+        && gvec4(T.Element(0)) == textureOffset(gsampler3D, vec3(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureOffset(gsampler3D, vec3(0), { __LINE__ }, float(0))
         && float(0) == textureOffset(uniform_sampler2DShadow, vec3(0), { __LINE__ })
         && float(0) == textureOffset(uniform_sampler2DShadow, vec3(0), { __LINE__ }, float(0))
-        && gvec4(T(0)) == textureOffset(gsampler2DRect, vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureOffset(gsampler2DRect, vec2(0), { __LINE__ })
         && float(0) == textureOffset(uniform_sampler2DRectShadow, vec3(0), { __LINE__ })
         && float(0) == textureOffset(uniform_sampler1DShadow, vec3(0), __LINE__)
         && float(0) == textureOffset(uniform_sampler1DShadow, vec3(0), __LINE__, float(0))
-        && gvec4(T(0)) == textureOffset(gsampler1DArray, vec2(0), __LINE__)
-        && gvec4(T(0)) == textureOffset(gsampler1DArray, vec2(0), __LINE__, float(0))
-        && gvec4(T(0)) == textureOffset(gsampler2DArray, vec3(0), { __LINE__ })
-        && gvec4(T(0)) == textureOffset(gsampler2DArray, vec3(0), { __LINE__ }, float(0))
+        && gvec4(T.Element(0)) == textureOffset(gsampler1DArray, vec2(0), __LINE__)
+        && gvec4(T.Element(0)) == textureOffset(gsampler1DArray, vec2(0), __LINE__, float(0))
+        && gvec4(T.Element(0)) == textureOffset(gsampler2DArray, vec3(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureOffset(gsampler2DArray, vec3(0), { __LINE__ }, float(0))
         && float(0) == textureOffset(uniform_sampler1DArrayShadow, vec3(0), __LINE__)
         && float(0) == textureOffset(uniform_sampler1DArrayShadow, vec3(0), __LINE__, float(0))
         && float(0) == textureOffset(uniform_sampler2DArrayShadow, vec4(0), { __LINE__ })
-        && gvec4(T(0)) == texelFetch(gsampler1D, int(0), int(0))
-        && gvec4(T(0)) == texelFetch(gsampler2D, ivec2(0), int(0))
-        && gvec4(T(0)) == texelFetch(gsampler3D, ivec3(0), int(0))
-        && gvec4(T(0)) == texelFetch(gsampler2DRect, ivec2(0))
-        && gvec4(T(0)) == texelFetch(gsampler1DArray, ivec2(0), int(0))
-        && gvec4(T(0)) == texelFetch(gsampler2DArray, ivec3(0), int(0))
-        && gvec4(T(0)) == texelFetch(gsamplerBuffer, int(0))
-        && gvec4(T(0)) == texelFetchOffset(gsampler1D, int(0), int(0), __LINE__)
-        && gvec4(T(0)) == texelFetchOffset(gsampler2D, ivec2(0), int(0), { __LINE__ })
-        && gvec4(T(0)) == texelFetchOffset(gsampler3D, ivec3(0), int(0), { __LINE__ })
-        && gvec4(T(0)) == texelFetchOffset(gsampler2DRect, ivec2(0), { __LINE__ })
-        && gvec4(T(0)) == texelFetchOffset(gsampler1DArray, ivec2(0), int(0), __LINE__)
-        && gvec4(T(0)) == texelFetchOffset(gsampler2DArray, ivec3(0), int(0), { __LINE__ })
-        && gvec4(T(0)) == textureProjOffset(gsampler1D, vec2(0), __LINE__)
-        && gvec4(T(0)) == textureProjOffset(gsampler1D, vec2(0), __LINE__, float(0))
-        && gvec4(T(0)) == textureProjOffset(gsampler1D, vec4(0), __LINE__)
-        && gvec4(T(0)) == textureProjOffset(gsampler1D, vec4(0), __LINE__,float(0))
-        && gvec4(T(0)) == textureProjOffset(gsampler2D, vec3(0), { __LINE__ })
-        && gvec4(T(0)) == textureProjOffset(gsampler2D, vec3(0), { __LINE__ }, float(0))
-        && gvec4(T(0)) == textureProjOffset(gsampler2D, vec4(0), { __LINE__ })
-        && gvec4(T(0)) == textureProjOffset(gsampler2D, vec4(0), { __LINE__ }, float(0))
-        && gvec4(T(0)) == textureProjOffset(gsampler3D, vec4(0), { __LINE__ })
-        && gvec4(T(0)) == textureProjOffset(gsampler3D, vec4(0), { __LINE__ }, float(0))
-        && gvec4(T(0)) == textureProjOffset(gsampler2DRect, vec3(0), { __LINE__ })
-        && gvec4(T(0)) == textureProjOffset(gsampler2DRect, vec4(0), { __LINE__ })
+        && gvec4(T.Element(0)) == texelFetch(gsampler1D, int(0), int(0))
+        && gvec4(T.Element(0)) == texelFetch(gsampler2D, ivec2(0), int(0))
+        && gvec4(T.Element(0)) == texelFetch(gsampler3D, ivec3(0), int(0))
+        && gvec4(T.Element(0)) == texelFetch(gsampler2DRect, ivec2(0))
+        && gvec4(T.Element(0)) == texelFetch(gsampler1DArray, ivec2(0), int(0))
+        && gvec4(T.Element(0)) == texelFetch(gsampler2DArray, ivec3(0), int(0))
+        && gvec4(T.Element(0)) == texelFetch(gsamplerBuffer, int(0))
+        && gvec4(T.Element(0)) == texelFetchOffset(gsampler1D, int(0), int(0), __LINE__)
+        && gvec4(T.Element(0)) == texelFetchOffset(gsampler2D, ivec2(0), int(0), { __LINE__ })
+        && gvec4(T.Element(0)) == texelFetchOffset(gsampler3D, ivec3(0), int(0), { __LINE__ })
+        && gvec4(T.Element(0)) == texelFetchOffset(gsampler2DRect, ivec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == texelFetchOffset(gsampler1DArray, ivec2(0), int(0), __LINE__)
+        && gvec4(T.Element(0)) == texelFetchOffset(gsampler2DArray, ivec3(0), int(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjOffset(gsampler1D, vec2(0), __LINE__)
+        && gvec4(T.Element(0)) == textureProjOffset(gsampler1D, vec2(0), __LINE__, float(0))
+        && gvec4(T.Element(0)) == textureProjOffset(gsampler1D, vec4(0), __LINE__)
+        && gvec4(T.Element(0)) == textureProjOffset(gsampler1D, vec4(0), __LINE__,float(0))
+        && gvec4(T.Element(0)) == textureProjOffset(gsampler2D, vec3(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjOffset(gsampler2D, vec3(0), { __LINE__ }, float(0))
+        && gvec4(T.Element(0)) == textureProjOffset(gsampler2D, vec4(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjOffset(gsampler2D, vec4(0), { __LINE__ }, float(0))
+        && gvec4(T.Element(0)) == textureProjOffset(gsampler3D, vec4(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjOffset(gsampler3D, vec4(0), { __LINE__ }, float(0))
+        && gvec4(T.Element(0)) == textureProjOffset(gsampler2DRect, vec3(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjOffset(gsampler2DRect, vec4(0), { __LINE__ })
         && float(0) == textureProjOffset(uniform_sampler2DRectShadow, vec4(0), { __LINE__ })
         && float(0) == textureProjOffset(uniform_sampler1DShadow, vec4(0), __LINE__)
         && float(0) == textureProjOffset(uniform_sampler1DShadow, vec4(0), __LINE__, float(0))
         && float(0) == textureProjOffset(uniform_sampler2DShadow, vec4(0), { __LINE__ })
         && float(0) == textureProjOffset(uniform_sampler2DShadow, vec4(0), { __LINE__ }, float(0))
-        && gvec4(T(0)) == textureLodOffset(gsampler1D, float(0), float(0), __LINE__)
-        && gvec4(T(0)) == textureLodOffset(gsampler2D, vec2(0), float(0), { __LINE__ })
-        && gvec4(T(0)) == textureLodOffset(gsampler3D, vec3(0), float(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureLodOffset(gsampler1D, float(0), float(0), __LINE__)
+        && gvec4(T.Element(0)) == textureLodOffset(gsampler2D, vec2(0), float(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureLodOffset(gsampler3D, vec3(0), float(0), { __LINE__ })
         && float(0) == textureLodOffset(uniform_sampler1DShadow, vec3(0), float(0), __LINE__)
         && float(1) == textureLodOffset(uniform_sampler2DShadow, vec3(0), float(0), { __LINE__ })
-        && gvec4(T(0)) == textureLodOffset(gsampler1DArray, vec2(0), float(0), __LINE__)
-        && gvec4(T(0)) == textureLodOffset(gsampler2DArray, vec3(0), float(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureLodOffset(gsampler1DArray, vec2(0), float(0), __LINE__)
+        && gvec4(T.Element(0)) == textureLodOffset(gsampler2DArray, vec3(0), float(0), { __LINE__ })
         && float(0) == textureLodOffset(uniform_sampler1DArrayShadow, vec3(0), float(0), __LINE__)
-        && gvec4(T(0)) == textureProjLod(gsampler1D, vec2(0), float(0))
-        && gvec4(T(0)) == textureProjLod(gsampler1D, vec4(0), float(0))
-        && gvec4(T(0)) == textureProjLod(gsampler2D, vec3(0), float(0))
-        && gvec4(T(0)) == textureProjLod(gsampler2D, vec4(0), float(0))
-        && gvec4(T(0)) == textureProjLod(gsampler3D, vec4(0), float(0))
+        && gvec4(T.Element(0)) == textureProjLod(gsampler1D, vec2(0), float(0))
+        && gvec4(T.Element(0)) == textureProjLod(gsampler1D, vec4(0), float(0))
+        && gvec4(T.Element(0)) == textureProjLod(gsampler2D, vec3(0), float(0))
+        && gvec4(T.Element(0)) == textureProjLod(gsampler2D, vec4(0), float(0))
+        && gvec4(T.Element(0)) == textureProjLod(gsampler3D, vec4(0), float(0))
         && float(0) == textureProjLod(uniform_sampler1DShadow, vec4(0), float(0))
         && float(0) == textureProjLod(uniform_sampler2DShadow, vec4(0), float(0))
-        && gvec4(T(0)) == textureProjLodOffset(gsampler1D, vec2(0), float(0), __LINE__)
-        && gvec4(T(0)) == textureProjLodOffset(gsampler1D, vec4(0), float(0), __LINE__)
-        && gvec4(T(0)) == textureProjLodOffset(gsampler2D, vec3(0), float(0), { __LINE__ })
-        && gvec4(T(0)) == textureProjLodOffset(gsampler2D, vec4(0), float(0), { __LINE__ })
-        && gvec4(T(0)) == textureProjLodOffset(gsampler3D, vec4(0), float(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjLodOffset(gsampler1D, vec2(0), float(0), __LINE__)
+        && gvec4(T.Element(0)) == textureProjLodOffset(gsampler1D, vec4(0), float(0), __LINE__)
+        && gvec4(T.Element(0)) == textureProjLodOffset(gsampler2D, vec3(0), float(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjLodOffset(gsampler2D, vec4(0), float(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjLodOffset(gsampler3D, vec4(0), float(0), { __LINE__ })
         && float(0) == textureProjLodOffset(uniform_sampler1DShadow, vec4(0), float(0), __LINE__)
         && float(0) == textureProjLodOffset(uniform_sampler2DShadow, vec4(0), float(0), { __LINE__ })
-        && gvec4(T(0)) == textureGrad(gsampler1D, float(0), float(0), float(0))
-        && gvec4(T(0)) == textureGrad(gsampler2D, vec2(0), vec2(0), vec2(0))
-        && gvec4(T(0)) == textureGrad(gsampler3D, vec3(0), vec3(0), vec3(0))
-        && gvec4(T(0)) == textureGrad(gsamplerCube, vec3(0), vec3(0), vec3(0))
-        && gvec4(T(0)) == textureGrad(gsampler2DRect, vec2(0), vec2(0), vec2(0))
+        && gvec4(T.Element(0)) == textureGrad(gsampler1D, float(0), float(0), float(0))
+        && gvec4(T.Element(0)) == textureGrad(gsampler2D, vec2(0), vec2(0), vec2(0))
+        && gvec4(T.Element(0)) == textureGrad(gsampler3D, vec3(0), vec3(0), vec3(0))
+        && gvec4(T.Element(0)) == textureGrad(gsamplerCube, vec3(0), vec3(0), vec3(0))
+        && gvec4(T.Element(0)) == textureGrad(gsampler2DRect, vec2(0), vec2(0), vec2(0))
         && float(0) == textureGrad(uniform_sampler2DRectShadow, vec3(0), vec2(0), vec2(0))
         && float(0) == textureGrad(uniform_sampler1DShadow, vec3(0), float(0), float(0))
-        && gvec4(T(0)) == textureGrad(gsampler1DArray, vec2(0), float(0), float(0))
-        && gvec4(T(0)) == textureGrad(gsampler2DArray, vec3(0), vec2(0), vec2(0))
+        && gvec4(T.Element(0)) == textureGrad(gsampler1DArray, vec2(0), float(0), float(0))
+        && gvec4(T.Element(0)) == textureGrad(gsampler2DArray, vec3(0), vec2(0), vec2(0))
         && float(0) == textureGrad(uniform_sampler1DArrayShadow, vec3(0), float(0), float(0))
         && float(0) == textureGrad(uniform_sampler2DShadow, vec3(0), vec2(0), vec2(0))
         && float(0) == textureGrad(uniform_samplerCubeShadow, vec4(0), vec3(0), vec3(0))
         && float(0) == textureGrad(uniform_sampler2DArrayShadow, vec4(0), vec2(0), vec2(0))
-        && gvec4(T(0)) == textureGrad(gsamplerCubeArray, vec4(0), vec3(0), vec3(0))
-        && gvec4(T(0)) == textureGradOffset(gsampler1D, float(0), float(0), float(0), __LINE__)
-        && gvec4(T(0)) == textureGradOffset(gsampler2D, vec2(0), vec2(0), vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureGradOffset(gsampler3D, vec3(0), vec3(0), vec3(0), { __LINE__ })
-        && gvec4(T(0)) == textureGradOffset(gsampler2DRect, vec2(0), vec2(0), vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGrad(gsamplerCubeArray, vec4(0), vec3(0), vec3(0))
+        && gvec4(T.Element(0)) == textureGradOffset(gsampler1D, float(0), float(0), float(0), __LINE__)
+        && gvec4(T.Element(0)) == textureGradOffset(gsampler2D, vec2(0), vec2(0), vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGradOffset(gsampler3D, vec3(0), vec3(0), vec3(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGradOffset(gsampler2DRect, vec2(0), vec2(0), vec2(0), { __LINE__ })
         && float(0) == textureGradOffset(uniform_sampler2DRectShadow, vec3(0), vec2(0), vec2(0), { __LINE__ })
         && float(0) == textureGradOffset(uniform_sampler1DShadow, vec3(0), float(0), float(0), __LINE__)
         && float(0) == textureGradOffset(uniform_sampler2DShadow, vec3(0), vec2(0), vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureGradOffset(gsampler2DArray, vec3(0), vec2(0), vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureGradOffset(gsampler1DArray, vec2(0), float(0), float(0), __LINE__)
+        && gvec4(T.Element(0)) == textureGradOffset(gsampler2DArray, vec3(0), vec2(0), vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGradOffset(gsampler1DArray, vec2(0), float(0), float(0), __LINE__)
         && float(0) == textureGradOffset(uniform_sampler1DArrayShadow, vec3(0), float(0), float(0), __LINE__)
         && float(0) == textureGradOffset(uniform_sampler2DArrayShadow, vec4(0), vec2(0), vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureProjGrad(gsampler1D, vec2(0), float(0), float(0))
-        && gvec4(T(0)) == textureProjGrad(gsampler1D, vec4(0), float(0), float(0))
-        && gvec4(T(0)) == textureProjGrad(gsampler2D, vec3(0), vec2(0), vec2(0))
-        && gvec4(T(0)) == textureProjGrad(gsampler2D, vec4(0), vec2(0), vec2(0))
-        && gvec4(T(0)) == textureProjGrad(gsampler3D, vec4(0), vec3(0), vec3(0))
-        && gvec4(T(0)) == textureProjGrad(gsampler2DRect, vec3(0), vec2(0), vec2(0))
-        && gvec4(T(0)) == textureProjGrad(gsampler2DRect, vec4(0), vec2(0), vec2(0))
+        && gvec4(T.Element(0)) == textureProjGrad(gsampler1D, vec2(0), float(0), float(0))
+        && gvec4(T.Element(0)) == textureProjGrad(gsampler1D, vec4(0), float(0), float(0))
+        && gvec4(T.Element(0)) == textureProjGrad(gsampler2D, vec3(0), vec2(0), vec2(0))
+        && gvec4(T.Element(0)) == textureProjGrad(gsampler2D, vec4(0), vec2(0), vec2(0))
+        && gvec4(T.Element(0)) == textureProjGrad(gsampler3D, vec4(0), vec3(0), vec3(0))
+        && gvec4(T.Element(0)) == textureProjGrad(gsampler2DRect, vec3(0), vec2(0), vec2(0))
+        && gvec4(T.Element(0)) == textureProjGrad(gsampler2DRect, vec4(0), vec2(0), vec2(0))
         && float(0) == textureProjGrad(uniform_sampler2DRectShadow, vec4(0), vec2(0), vec2(0))
         && float(0) == textureProjGrad(uniform_sampler1DShadow, vec4(0), float(0), float(0))
         && float(0) == textureProjGrad(uniform_sampler2DShadow, vec4(0), vec2(0), vec2(0))
-        && gvec4(T(0)) == textureProjGradOffset(gsampler1D, vec2(0), float(0), float(0), __LINE__)
-        && gvec4(T(0)) == textureProjGradOffset(gsampler1D, vec4(0), float(0), float(0), __LINE__)
-        && gvec4(T(0)) == textureProjGradOffset(gsampler2D, vec3(0), vec2(0), vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureProjGradOffset(gsampler2D, vec4(0), vec2(0), vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureProjGradOffset(gsampler3D, vec4(0), vec3(0), vec3(0), { __LINE__ })
-        && gvec4(T(0)) == textureProjGradOffset(gsampler2DRect, vec3(0), vec2(0), vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureProjGradOffset(gsampler2DRect, vec4(0), vec2(0), vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjGradOffset(gsampler1D, vec2(0), float(0), float(0), __LINE__)
+        && gvec4(T.Element(0)) == textureProjGradOffset(gsampler1D, vec4(0), float(0), float(0), __LINE__)
+        && gvec4(T.Element(0)) == textureProjGradOffset(gsampler2D, vec3(0), vec2(0), vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjGradOffset(gsampler2D, vec4(0), vec2(0), vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjGradOffset(gsampler3D, vec4(0), vec3(0), vec3(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjGradOffset(gsampler2DRect, vec3(0), vec2(0), vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureProjGradOffset(gsampler2DRect, vec4(0), vec2(0), vec2(0), { __LINE__ })
         && float(0) == textureProjGradOffset(uniform_sampler2DRectShadow, vec4(0), vec2(0), vec2(0), { __LINE__ })
         && float(0) == textureProjGradOffset(uniform_sampler1DShadow, vec4(0), float(0), float(0), __LINE__)
         && float(0) == textureProjGradOffset(uniform_sampler2DShadow, vec4(0), vec2(0), vec2(0), { __LINE__ })
         
         // 8.9.4. Texture Gather Functions
-        && gvec4(T(0)) == textureGather(gsampler2D, vec2(0))
-        && gvec4(T(0)) == textureGather(gsampler2D, vec2(0), int(0))
-        && gvec4(T(0)) == textureGather(gsampler2DArray, vec3(0))
-        && gvec4(T(0)) == textureGather(gsampler2DArray, vec3(0), int(0))
-        && gvec4(T(0)) == textureGather(gsamplerCube, vec3(0))
-        && gvec4(T(0)) == textureGather(gsamplerCube, vec3(0), int(0))
-        && gvec4(T(0)) == textureGather(gsamplerCubeArray, vec4(0))
-        && gvec4(T(0)) == textureGather(gsamplerCubeArray, vec4(0), int(0))
-        && gvec4(T(0)) == textureGather(gsampler2DRect, vec2(0))
-        && gvec4(T(0)) == textureGather(gsampler2DRect, vec2(0), int(0))
+        && gvec4(T.Element(0)) == textureGather(gsampler2D, vec2(0))
+        && gvec4(T.Element(0)) == textureGather(gsampler2D, vec2(0), int(0))
+        && gvec4(T.Element(0)) == textureGather(gsampler2DArray, vec3(0))
+        && gvec4(T.Element(0)) == textureGather(gsampler2DArray, vec3(0), int(0))
+        && gvec4(T.Element(0)) == textureGather(gsamplerCube, vec3(0))
+        && gvec4(T.Element(0)) == textureGather(gsamplerCube, vec3(0), int(0))
+        && gvec4(T.Element(0)) == textureGather(gsamplerCubeArray, vec4(0))
+        && gvec4(T.Element(0)) == textureGather(gsamplerCubeArray, vec4(0), int(0))
+        && gvec4(T.Element(0)) == textureGather(gsampler2DRect, vec2(0))
+        && gvec4(T.Element(0)) == textureGather(gsampler2DRect, vec2(0), int(0))
         && vec4(0) == textureGather(uniform_sampler2DShadow, vec2(0), float(0))
         && vec4(0) == textureGather(uniform_sampler2DArrayShadow, vec3(0), float(0))
         && vec4(0) == textureGather(uniform_samplerCubeShadow, vec3(0), float(0))
         && vec4(0) == textureGather(uniform_samplerCubeArrayShadow, vec4(0), float(0))
         && vec4(0) == textureGather(uniform_sampler2DRectShadow, vec2(0), float(0))
-        && gvec4(T(0)) == textureGatherOffset(gsampler2D, vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffset(gsampler2D, vec2(0), { __LINE__ }, int(0))
-        && gvec4(T(0)) == textureGatherOffset(gsampler2DArray, vec3(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffset(gsampler2DArray, vec3(0), { __LINE__ }, int(0))
+        && gvec4(T.Element(0)) == textureGatherOffset(gsampler2D, vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGatherOffset(gsampler2D, vec2(0), { __LINE__ }, int(0))
+        && gvec4(T.Element(0)) == textureGatherOffset(gsampler2DArray, vec3(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGatherOffset(gsampler2DArray, vec3(0), { __LINE__ }, int(0))
         && vec4(0) == textureGatherOffset(uniform_sampler2DShadow, vec2(0), float(0), { __LINE__ })
         && vec4(0) == textureGatherOffset(uniform_sampler2DArrayShadow, vec3(0), float(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffset(gsampler2DRect, vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffset(gsampler2DRect, vec2(0), { __LINE__ }, int(0))
+        && gvec4(T.Element(0)) == textureGatherOffset(gsampler2DRect, vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGatherOffset(gsampler2DRect, vec2(0), { __LINE__ }, int(0))
         && vec4(0) == textureGatherOffset(uniform_sampler2DRectShadow, vec2(0), float(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffsets(gsampler2D, vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffsets(gsampler2D, vec2(0), { __LINE__ }, int(0))
-        && gvec4(T(0)) == textureGatherOffsets(gsampler2DArray, vec3(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffsets(gsampler2DArray, vec3(0), { __LINE__ }, int(0))
+        && gvec4(T.Element(0)) == textureGatherOffsets(gsampler2D, vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGatherOffsets(gsampler2D, vec2(0), { __LINE__ }, int(0))
+        && gvec4(T.Element(0)) == textureGatherOffsets(gsampler2DArray, vec3(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGatherOffsets(gsampler2DArray, vec3(0), { __LINE__ }, int(0))
         && vec4(0) == textureGatherOffsets(uniform_sampler2DShadow, vec2(0), float(0), { __LINE__ })
         && vec4(0) == textureGatherOffsets(uniform_sampler2DArrayShadow, vec3(0), float(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffsets(gsampler2DRect, vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffsets(gsampler2DRect, vec2(0), { __LINE__ }, int(0))
+        && gvec4(T.Element(0)) == textureGatherOffsets(gsampler2DRect, vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGatherOffsets(gsampler2DRect, vec2(0), { __LINE__ }, int(0))
         && vec4(0) == textureGatherOffsets(uniform_sampler2DRectShadow, vec2(0), float(0), { __LINE__ })
 
         // 8.9.5. Compatibility Profile Texture Functions
@@ -359,19 +359,19 @@ bool textureFuncs( Sampler1D<vector<T,N>> gsampler1D
         ;
 }
 
-__generic<T : __BuiltinArithmeticType, let N : int>
-bool itextureFuncs(Sampler1D<vector<T, N>> gsampler1D
-    , Sampler2D<vector<T, N>> gsampler2D
-    , Sampler2DRect<vector<T, N>> gsampler2DRect
-    , Sampler3D<vector<T, N>> gsampler3D
-    , SamplerCube<vector<T, N>> gsamplerCube
-    , Sampler1DArray<vector<T, N>> gsampler1DArray
-    , Sampler2DArray<vector<T, N>> gsampler2DArray
-    , SamplerCubeArray<vector<T, N>> gsamplerCubeArray
-    , SamplerBuffer<vector<T, N>> gsamplerBuffer
+__generic<T : ITexelElement>
+bool itextureFuncs(Sampler1D<T> gsampler1D
+    , Sampler2D<T> gsampler2D
+    , Sampler2DRect<T> gsampler2DRect
+    , Sampler3D<T> gsampler3D
+    , SamplerCube<T> gsamplerCube
+    , Sampler1DArray<T> gsampler1DArray
+    , Sampler2DArray<T> gsampler2DArray
+    , SamplerCubeArray<T> gsamplerCubeArray
+    , SamplerBuffer<T> gsamplerBuffer
 )
 {
-    typealias gvec4 = vector<T, 4>;
+    typealias gvec4 = vector<T.Element, 4>;
 
     constexpr ivec2 ivec2_0 = ivec2(0);
 
@@ -394,53 +394,53 @@ bool itextureFuncs(Sampler1D<vector<T, N>> gsampler1D
         && ivec3(0) == textureSize(uniform_sampler2DArrayShadow, int(0))
         && int(0) == textureSize(gsamplerBuffer)
 
-        && gvec4(T(0)) == texelFetch(gsampler1D, int(0), int(0))
-        && gvec4(T(0)) == texelFetch(gsampler2D, ivec2(0), int(0))
-        && gvec4(T(0)) == texelFetch(gsampler3D, ivec3(0), int(0))
-        && gvec4(T(0)) == texelFetch(gsampler2DRect, ivec2(0))
-        && gvec4(T(0)) == texelFetch(gsampler1DArray, ivec2(0), int(0))
-        && gvec4(T(0)) == texelFetch(gsampler2DArray, ivec3(0), int(0))
-        && gvec4(T(0)) == texelFetch(gsamplerBuffer, int(0))
+        && gvec4(T.Element(0)) == texelFetch(gsampler1D, int(0), int(0))
+        && gvec4(T.Element(0)) == texelFetch(gsampler2D, ivec2(0), int(0))
+        && gvec4(T.Element(0)) == texelFetch(gsampler3D, ivec3(0), int(0))
+        && gvec4(T.Element(0)) == texelFetch(gsampler2DRect, ivec2(0))
+        && gvec4(T.Element(0)) == texelFetch(gsampler1DArray, ivec2(0), int(0))
+        && gvec4(T.Element(0)) == texelFetch(gsampler2DArray, ivec3(0), int(0))
+        && gvec4(T.Element(0)) == texelFetch(gsamplerBuffer, int(0))
 
-        && gvec4(T(0)) == texelFetchOffset(gsampler1D, int(0), int(0), __LINE__)
-        && gvec4(T(0)) == texelFetchOffset(gsampler2D, ivec2(0), int(0), { __LINE__ })
-        && gvec4(T(0)) == texelFetchOffset(gsampler3D, ivec3(0), int(0), { __LINE__ })
-        && gvec4(T(0)) == texelFetchOffset(gsampler2DRect, ivec2(0), { __LINE__ })
-        && gvec4(T(0)) == texelFetchOffset(gsampler1DArray, ivec2(0), int(0), __LINE__)
-        && gvec4(T(0)) == texelFetchOffset(gsampler2DArray, ivec3(0), int(0), { __LINE__ })
+        && gvec4(T.Element(0)) == texelFetchOffset(gsampler1D, int(0), int(0), __LINE__)
+        && gvec4(T.Element(0)) == texelFetchOffset(gsampler2D, ivec2(0), int(0), { __LINE__ })
+        && gvec4(T.Element(0)) == texelFetchOffset(gsampler3D, ivec3(0), int(0), { __LINE__ })
+        && gvec4(T.Element(0)) == texelFetchOffset(gsampler2DRect, ivec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == texelFetchOffset(gsampler1DArray, ivec2(0), int(0), __LINE__)
+        && gvec4(T.Element(0)) == texelFetchOffset(gsampler2DArray, ivec3(0), int(0), { __LINE__ })
         // 8.9.4. Texture Gather Functions
-        && gvec4(T(0)) == textureGather(gsampler2D, vec2(0))
-        && gvec4(T(0)) == textureGather(gsampler2D, vec2(0), int(0))
-        && gvec4(T(0)) == textureGather(gsampler2DArray, vec3(0))
-        && gvec4(T(0)) == textureGather(gsampler2DArray, vec3(0), int(0))
-        && gvec4(T(0)) == textureGather(gsamplerCube, vec3(0))
-        && gvec4(T(0)) == textureGather(gsamplerCube, vec3(0), int(0))
-        && gvec4(T(0)) == textureGather(gsamplerCubeArray, vec4(0))
-        && gvec4(T(0)) == textureGather(gsamplerCubeArray, vec4(0), int(0))
-        && gvec4(T(0)) == textureGather(gsampler2DRect, vec2(0))
-        && gvec4(T(0)) == textureGather(gsampler2DRect, vec2(0), int(0))
+        && gvec4(T.Element(0)) == textureGather(gsampler2D, vec2(0))
+        && gvec4(T.Element(0)) == textureGather(gsampler2D, vec2(0), int(0))
+        && gvec4(T.Element(0)) == textureGather(gsampler2DArray, vec3(0))
+        && gvec4(T.Element(0)) == textureGather(gsampler2DArray, vec3(0), int(0))
+        && gvec4(T.Element(0)) == textureGather(gsamplerCube, vec3(0))
+        && gvec4(T.Element(0)) == textureGather(gsamplerCube, vec3(0), int(0))
+        && gvec4(T.Element(0)) == textureGather(gsamplerCubeArray, vec4(0))
+        && gvec4(T.Element(0)) == textureGather(gsamplerCubeArray, vec4(0), int(0))
+        && gvec4(T.Element(0)) == textureGather(gsampler2DRect, vec2(0))
+        && gvec4(T.Element(0)) == textureGather(gsampler2DRect, vec2(0), int(0))
         && vec4(0) == textureGather(uniform_sampler2DShadow, vec2(0), float(0))
         && vec4(0) == textureGather(uniform_sampler2DArrayShadow, vec3(0), float(0))
         && vec4(0) == textureGather(uniform_samplerCubeShadow, vec3(0), float(0))
         && vec4(0) == textureGather(uniform_samplerCubeArrayShadow, vec4(0), float(0))
         && vec4(0) == textureGather(uniform_sampler2DRectShadow, vec2(0), float(0))
-        && gvec4(T(0)) == textureGatherOffset(gsampler2D, vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffset(gsampler2D, vec2(0), { __LINE__ }, int(0))
-        && gvec4(T(0)) == textureGatherOffset(gsampler2DArray, vec3(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffset(gsampler2DArray, vec3(0), { __LINE__ }, int(0))
+        && gvec4(T.Element(0)) == textureGatherOffset(gsampler2D, vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGatherOffset(gsampler2D, vec2(0), { __LINE__ }, int(0))
+        && gvec4(T.Element(0)) == textureGatherOffset(gsampler2DArray, vec3(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGatherOffset(gsampler2DArray, vec3(0), { __LINE__ }, int(0))
         && vec4(0) == textureGatherOffset(uniform_sampler2DShadow, vec2(0), float(0), { __LINE__ })
         && vec4(0) == textureGatherOffset(uniform_sampler2DArrayShadow, vec3(0), float(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffset(gsampler2DRect, vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffset(gsampler2DRect, vec2(0), { __LINE__ }, int(0))
+        && gvec4(T.Element(0)) == textureGatherOffset(gsampler2DRect, vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGatherOffset(gsampler2DRect, vec2(0), { __LINE__ }, int(0))
         && vec4(0) == textureGatherOffset(uniform_sampler2DRectShadow, vec2(0), float(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffsets(gsampler2D, vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffsets(gsampler2D, vec2(0), { __LINE__ }, int(0))
-        && gvec4(T(0)) == textureGatherOffsets(gsampler2DArray, vec3(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffsets(gsampler2DArray, vec3(0), { __LINE__ }, int(0))
+        && gvec4(T.Element(0)) == textureGatherOffsets(gsampler2D, vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGatherOffsets(gsampler2D, vec2(0), { __LINE__ }, int(0))
+        && gvec4(T.Element(0)) == textureGatherOffsets(gsampler2DArray, vec3(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGatherOffsets(gsampler2DArray, vec3(0), { __LINE__ }, int(0))
         && vec4(0) == textureGatherOffsets(uniform_sampler2DShadow, vec2(0), float(0), { __LINE__ })
         && vec4(0) == textureGatherOffsets(uniform_sampler2DArrayShadow, vec3(0), float(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffsets(gsampler2DRect, vec2(0), { __LINE__ })
-        && gvec4(T(0)) == textureGatherOffsets(gsampler2DRect, vec2(0), { __LINE__ }, int(0))
+        && gvec4(T.Element(0)) == textureGatherOffsets(gsampler2DRect, vec2(0), { __LINE__ })
+        && gvec4(T.Element(0)) == textureGatherOffsets(gsampler2DRect, vec2(0), { __LINE__ }, int(0))
         && vec4(0) == textureGatherOffsets(uniform_sampler2DRectShadow, vec2(0), float(0), { __LINE__ })
         ;
 }