Create the HLSL shadow texture function.

src/common/utilities.cpp

@@ -33,6 +33,9 @@ int UniformComponentCount(GLenum type)
       case GL_UNSIGNED_INT_SAMPLER_3D:
       case GL_UNSIGNED_INT_SAMPLER_CUBE:
       case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
+      case GL_SAMPLER_2D_SHADOW:
+      case GL_SAMPLER_CUBE_SHADOW:
+      case GL_SAMPLER_2D_ARRAY_SHADOW:
       case GL_UNSIGNED_INT:
         return 1;
       case GL_BOOL_VEC2:
@@ -107,6 +110,9 @@ GLenum UniformComponentType(GLenum type)
       case GL_UNSIGNED_INT_SAMPLER_3D:
       case GL_UNSIGNED_INT_SAMPLER_CUBE:
       case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
+      case GL_SAMPLER_2D_SHADOW:
+      case GL_SAMPLER_CUBE_SHADOW:
+      case GL_SAMPLER_2D_ARRAY_SHADOW:
       case GL_INT_VEC2:
       case GL_INT_VEC3:
       case GL_INT_VEC4:
@@ -209,6 +215,9 @@ int VariableRowCount(GLenum type)
       case GL_UNSIGNED_INT_SAMPLER_3D:
       case GL_UNSIGNED_INT_SAMPLER_CUBE:
       case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
+      case GL_SAMPLER_2D_SHADOW:
+      case GL_SAMPLER_CUBE_SHADOW:
+      case GL_SAMPLER_2D_ARRAY_SHADOW:
         return 1;
       case GL_FLOAT_MAT2:
       case GL_FLOAT_MAT3x2:
@@ -251,6 +260,9 @@ int VariableColumnCount(GLenum type)
       case GL_UNSIGNED_INT_SAMPLER_3D:
       case GL_UNSIGNED_INT_SAMPLER_CUBE:
       case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
+      case GL_SAMPLER_2D_SHADOW:
+      case GL_SAMPLER_CUBE_SHADOW:
+      case GL_SAMPLER_2D_ARRAY_SHADOW:
         return 1;
       case GL_BOOL_VEC2:
       case GL_FLOAT_VEC2:
@@ -299,6 +311,9 @@ bool IsSampler(GLenum type)
       case GL_UNSIGNED_INT_SAMPLER_3D:
       case GL_UNSIGNED_INT_SAMPLER_CUBE:
       case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
+      case GL_SAMPLER_2D_SHADOW:
+      case GL_SAMPLER_CUBE_SHADOW:
+      case GL_SAMPLER_2D_ARRAY_SHADOW:
         return true;
     }
 

src/compiler/BaseTypes.h

@@ -254,6 +254,36 @@ inline bool IsSamplerArray(TBasicType type)
     return false;
 }
 
+inline bool IsShadowSampler(TBasicType type)
+{
+    switch (type)
+    {
+      case EbtSampler2DShadow:
+      case EbtSamplerCubeShadow:
+      case EbtSampler2DArrayShadow:
+        return true;
+      case EbtISampler2D:
+      case EbtISampler3D:
+      case EbtISamplerCube:
+      case EbtISampler2DArray:
+      case EbtUSampler2D:
+      case EbtUSampler3D:
+      case EbtUSamplerCube:
+      case EbtUSampler2DArray:
+      case EbtSampler2D:
+      case EbtSampler3D:
+      case EbtSamplerCube:
+      case EbtSamplerExternalOES:
+      case EbtSampler2DRect:
+      case EbtSampler2DArray:
+        return false;
+      default:
+        assert(!IsSampler(type));
+    }
+
+    return false;
+}
+
 //
 // Qualifiers and built-ins.  These are mainly used to see what can be read
 // or written, and by the machine dependent translator to know which registers

src/compiler/OutputHLSL.h

@@ -39,6 +39,7 @@ class OutputHLSL : public TIntermTraverser
 
     TString typeString(const TType &type);
     TString textureString(const TType &type);
+    TString samplerString(const TType &type);
     TString interpolationString(TQualifier qualifier);
     TString structureString(const TStructure &structure, bool useHLSLRowMajorPacking, bool useStd140Packing);
     TString structureTypeName(const TStructure &structure, bool useHLSLRowMajorPacking, bool useStd140Packing);

src/libGLESv2/ProgramBinary.cpp

@@ -2267,12 +2267,14 @@ TextureType ProgramBinary::getTextureType(GLenum samplerType, InfoLog &infoLog)
       case GL_SAMPLER_2D:
       case GL_INT_SAMPLER_2D:
       case GL_UNSIGNED_INT_SAMPLER_2D:
+      case GL_SAMPLER_2D_SHADOW:
         return TEXTURE_2D;
       case GL_SAMPLER_3D:
       case GL_INT_SAMPLER_3D:
       case GL_UNSIGNED_INT_SAMPLER_3D:
         return TEXTURE_3D;
       case GL_SAMPLER_CUBE:
+      case GL_SAMPLER_CUBE_SHADOW:
         return TEXTURE_CUBE;
       case GL_INT_SAMPLER_CUBE:
       case GL_UNSIGNED_INT_SAMPLER_CUBE:
@@ -2282,6 +2284,7 @@ TextureType ProgramBinary::getTextureType(GLenum samplerType, InfoLog &infoLog)
       case GL_SAMPLER_2D_ARRAY:
       case GL_INT_SAMPLER_2D_ARRAY:
       case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
+      case GL_SAMPLER_2D_ARRAY_SHADOW:
         return TEXTURE_2D_ARRAY;
       default: UNREACHABLE();
     }