Make addUniform take a precision

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
 
@@ skipping 22 matching lines @@
     kVertex_GrShaderType,
     kGeometry_GrShaderType,
     kFragment_GrShaderType,
 
     kLastkFragment_GrShaderType = kFragment_GrShaderType
 };
 static const int kGrShaderTypeCount = kLastkFragment_GrShaderType + 1;
 
 /**
  * Precisions of shader language variables. Not all shading languages support precisions or actually
- * vary the internal precision based on the qualifiers.
+ * vary the internal precision based on the qualifiers. These currently only apply to float types (
+ * including float vectors and matrices).
  */
 enum GrSLPrecision {
     kLow_GrSLPrecision,
     kMedium_GrSLPrecision,
     kHigh_GrSLPrecision,
 
     // Default precision is medium. This is because on OpenGL ES 2 highp support is not
     // guaranteed. On (non-ES) OpenGL the specifiers have no effect on precision.
     kDefault_GrSLPrecision = kMedium_GrSLPrecision,
 
@@ skipping 26 matching lines @@
 static inline GrSLType GrSLFloatVectorType(int count) {
     SkASSERT(count > 0 && count <= 4);
     return (GrSLType)(count);
 
     GR_STATIC_ASSERT(kFloat_GrSLType == 1);
     GR_STATIC_ASSERT(kVec2f_GrSLType == 2);
     GR_STATIC_ASSERT(kVec3f_GrSLType == 3);
     GR_STATIC_ASSERT(kVec4f_GrSLType == 4);
 }
 
+/** Is the shading language type floating point (or vector/matrix of fp)? */
+static inline bool GrSLTypeIsFloatType(GrSLType type) {
+    SkASSERT(type >= 0 && type < static_cast<GrSLType>(kGrSLTypeCount));
+    return type >= 1 && type <= 6;
+
+    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 == kGrSLTypeCount);
+}
 //////////////////////////////////////////////////////////////////////////////
 
 /**
  * Types used to describe format of vertices in arrays.
   */
 enum GrVertexAttribType {
     kFloat_GrVertexAttribType = 0,
     kVec2f_GrVertexAttribType,
     kVec3f_GrVertexAttribType,
     kVec4f_GrVertexAttribType,
@@ skipping 118 matching lines @@
 /**
  * Indicates the type of pending IO operations that can be recorded for gpu resources.
  */
 enum GrIOType {
     kRead_GrIOType,
     kWrite_GrIOType,
     kRW_GrIOType
 };
 
 #endif