Parser & SPV: Implement two extensions regarding GLSL sparse texture.

Implement extension "GL_ARB_sparse_texture2". Implement extension "GL_ARB_sparse_texture_clamp".
2015-12-31 16:11:41 +08:00
parent e23c9849c2
commit 48edadfd24
12 changed files with 1621 additions and 151 deletions
--- a/Test/spv.sparseTextureClamp.frag
+++ b/Test/spv.sparseTextureClamp.frag
@@ -0,0 +1,70 @@
+#version 450
+#extension GL_ARB_sparse_texture_clamp: enable
+
+uniform sampler2D               s2D;
+uniform sampler3D               s3D;
+uniform sampler2DShadow         s2DShadow;
+uniform samplerCubeShadow       sCubeShadow;
+uniform sampler2DArrayShadow    s2DArrayShadow;
+uniform sampler2DRectShadow     s2DRectShadow;
+uniform samplerCubeArrayShadow  sCubeArrayShadow;
+
+uniform isamplerCube            isCube;
+uniform isampler2DArray         is2DArray;
+
+uniform usamplerCubeArray       usCubeArray;
+uniform usampler2DRect          us2DRect;
+
+uniform vec2 c2;
+uniform vec3 c3;
+uniform vec4 c4;
+
+uniform float lodClamp;
+
+out vec4 outColor;
+
+void main()
+{
+    int   resident = 0;
+    vec4  texel  = vec4(0.0);
+    ivec4 itexel = ivec4(0);
+    uvec4 utexel = uvec4(0);
+
+    resident |= sparseTextureClampARB(s2D, c2, lodClamp, texel);
+    resident |= sparseTextureClampARB(s3D, c3, lodClamp, texel, 2.0);
+    resident |= sparseTextureClampARB(isCube, c3, lodClamp, itexel);
+    resident |= sparseTextureClampARB(s2DShadow, c3, lodClamp, texel.x);
+    resident |= sparseTextureClampARB(sCubeArrayShadow, c4, 1.0, lodClamp, texel.x);
+
+    texel   += textureClampARB(s2D, c2, lodClamp);
+    texel   += textureClampARB(s3D, c3, lodClamp, 2.0);
+    itexel  += textureClampARB(isCube, c3, lodClamp);
+    texel.x += textureClampARB(s2DShadow, c3, lodClamp);
+    texel.x += textureClampARB(sCubeArrayShadow, c4, 1.0, lodClamp);
+
+    resident |= sparseTextureOffsetClampARB(s3D, c3, ivec3(2), lodClamp, texel, 2.0);
+    resident |= sparseTextureOffsetClampARB(us2DRect, c2, ivec2(3), lodClamp, utexel);
+    resident |= sparseTextureOffsetClampARB(s2DArrayShadow, c4, ivec2(5), lodClamp, texel.z);
+
+    texel   += textureOffsetClampARB(s3D, c3, ivec3(2), lodClamp, 2.0);
+    utexel  += textureOffsetClampARB(us2DRect, c2, ivec2(3), lodClamp);
+    texel.z += textureOffsetClampARB(s2DArrayShadow, c4, ivec2(5), lodClamp);
+
+    resident |= sparseTextureGradClampARB(s3D, c3, c3, c3, lodClamp, texel);
+    resident |= sparseTextureGradClampARB(sCubeShadow, c4, c3, c3, lodClamp, texel.y);
+    resident |= sparseTextureGradClampARB(usCubeArray, c4, c3, c3, lodClamp, utexel);
+
+    texel   += textureGradClampARB(s3D, c3, c3, c3, lodClamp);
+    texel.y += textureGradClampARB(sCubeShadow, c4, c3, c3, lodClamp);
+    utexel  += textureGradClampARB(usCubeArray, c4, c3, c3, lodClamp);
+
+    resident |= sparseTextureGradOffsetClampARB(s2D, c2, c2, c2, ivec2(5), lodClamp, texel);
+    resident |= sparseTextureGradOffsetClampARB(s2DRectShadow, c3, c2, c2, ivec2(6), lodClamp, texel.w);
+    resident |= sparseTextureGradOffsetClampARB(is2DArray, c3, c2, c2, ivec2(2), lodClamp, itexel);
+
+    texel   += textureGradOffsetClampARB(s2D, c2, c2, c2, ivec2(5), lodClamp);
+    texel.w += textureGradOffsetClampARB(s2DRectShadow, c3, c2, c2, ivec2(6), lodClamp);
+    itexel  += textureGradOffsetClampARB(is2DArray, c3, c2, c2, ivec2(2), lodClamp);
+
+    outColor = sparseTexelsResidentARB(resident) ? texel : vec4(itexel) + vec4(utexel);
+}