Adding 3D lut color filter

include/gpu/GrTypesPriv.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTypesPriv_DEFINED
 #define GrTypesPriv_DEFINED
 
 #include "GrTypes.h"
 #include "SkTArray.h"
 
 /**
  * Types of shader-language-specific boxed variables we can create. (Currently only GrGLShaderVars,
  * but should be applicable to other shader languages.)
  */
 enum GrSLType {
     kVoid_GrSLType,
     kFloat_GrSLType,
     kVec2f_GrSLType,
     kVec3f_GrSLType,
     kVec4f_GrSLType,
     kMat33f_GrSLType,
     kMat44f_GrSLType,
     kSampler2D_GrSLType,
+    kSampler3D_GrSLType,
 
-    kLast_GrSLType = kSampler2D_GrSLType
+    kLast_GrSLType = kSampler3D_GrSLType
 };
 static const int kGrSLTypeCount = kLast_GrSLType + 1;
 
 /**
  * Gets the vector size of the SLType. Returns -1 for void, matrices, and samplers.
  */
 static inline int GrSLTypeVectorCount(GrSLType type) {
     SkASSERT(type >= 0 && type < static_cast<GrSLType>(kGrSLTypeCount));
-    static const int kCounts[] = { -1, 1, 2, 3, 4, -1, -1, -1 };
+    static const int kCounts[] = { -1, 1, 2, 3, 4, -1, -1, -1, -1 };
     return kCounts[type];
 
     GR_STATIC_ASSERT(0 == kVoid_GrSLType);
     GR_STATIC_ASSERT(1 == kFloat_GrSLType);
     GR_STATIC_ASSERT(2 == kVec2f_GrSLType);
     GR_STATIC_ASSERT(3 == kVec3f_GrSLType);
     GR_STATIC_ASSERT(4 == kVec4f_GrSLType);
     GR_STATIC_ASSERT(5 == kMat33f_GrSLType);
     GR_STATIC_ASSERT(6 == kMat44f_GrSLType);
     GR_STATIC_ASSERT(7 == kSampler2D_GrSLType);
+    GR_STATIC_ASSERT(8 == kSampler3D_GrSLType);
     GR_STATIC_ASSERT(SK_ARRAY_COUNT(kCounts) == kGrSLTypeCount);
 }
 
 /** Return the type enum for a vector of floats of length n (1..4),
  e.g. 1 -> kFloat_GrSLType, 2 -> kVec2_GrSLType, ... */
 static inline GrSLType GrSLFloatVectorType(int count) {
     SkASSERT(count > 0 && count <= 4);
     return (GrSLType)(count);
 
     GR_STATIC_ASSERT(kFloat_GrSLType == 1);
@@ skipping 153 matching lines @@
             return kFillBW_GrEffectEdgeType;
         case kInverseFillAA_GrEffectEdgeType:
             return kFillAA_GrEffectEdgeType;
         case kHairlineAA_GrEffectEdgeType:
             SkFAIL("Hairline fill isn't invertible.");
     }
     return kFillAA_GrEffectEdgeType; // suppress warning.
 }
 
 #endif