Implement textureProjOffset and textureLodOffset.

src/compiler/translator/Initialize.cpp

@@ -475,6 +475,24 @@ void InsertBuiltInFunctions(ShShaderType type, ShShaderSpec spec, const ShBuiltI
         symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2DArray, float3, int2, float1);
     }
 
+    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float3, int2);
+    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float4, int2);
+    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler3D, float4, int3);
+    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjOffset", sampler2DShadow, float4, int2);
+
+    if(type == SH_FRAGMENT_SHADER)
+    {
+        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float3, int2, float1);
+        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float4, int2, float1);
+        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler3D, float4, int3, float1);
+        symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjOffset", sampler2DShadow, float4, int2, float1);
+    }
+
+    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler2D, float2, float1, int2);
+    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler3D, float3, float1, int3);
+    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureLodOffset", sampler2DShadow, float3, float1, int2);
+    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler2DArray, float3, float1, int2);
+
     //
     // Depth range in window coordinates
     //

src/compiler/translator/OutputHLSL.cpp

@@ -2343,6 +2343,17 @@ bool OutputHLSL::visitAggregate(Visit visit, TIntermAggregate *node)
                     textureFunction.method = TextureFunction::IMPLICIT;
                     textureFunction.offset = true;
                 }
+                else if (name == "textureProjOffset")
+                {
+                    textureFunction.method = TextureFunction::IMPLICIT;
+                    textureFunction.offset = true;
+                    textureFunction.proj = true;
+                }
+                else if (name == "textureLodOffset")
+                {
+                    textureFunction.method = TextureFunction::LOD;
+                    textureFunction.offset = true;
+                }
                 else UNREACHABLE();
 
                 if (textureFunction.method == TextureFunction::IMPLICIT)   // Could require lod 0 or have a bias argument