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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrGLUniformManager_DEFINED | 8 #ifndef GrGLUniformManager_DEFINED |
9 #define GrGLUniformManager_DEFINED | 9 #define GrGLUniformManager_DEFINED |
10 | 10 |
11 #include "gl/GrGLShaderVar.h" | 11 #include "gl/GrGLShaderVar.h" |
12 #include "gl/GrGLSL.h" | 12 #include "gl/GrGLSL.h" |
13 #include "GrAllocator.h" | 13 #include "GrAllocator.h" |
14 | 14 |
15 #include "SkTArray.h" | 15 #include "SkTArray.h" |
16 | 16 |
17 class GrGLContext; | 17 class GrGpuGL; |
18 class SkMatrix; | 18 class SkMatrix; |
19 | 19 |
20 /** Manages a program's uniforms. | 20 /** Manages a program's uniforms. |
21 */ | 21 */ |
22 class GrGLUniformManager { | 22 class GrGLUniformManager { |
23 public: | 23 public: |
24 // Opaque handle to a uniform | 24 // Opaque handle to a uniform |
25 class UniformHandle { | 25 class UniformHandle { |
26 public: | 26 public: |
27 static UniformHandle CreateFromUniformIndex(int i); | 27 static UniformHandle CreateFromUniformIndex(int i); |
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39 : fValue(~value) { | 39 : fValue(~value) { |
40 SkASSERT(isValid()); | 40 SkASSERT(isValid()); |
41 } | 41 } |
42 | 42 |
43 int toUniformIndex() const { SkASSERT(isValid()); return ~fValue; } | 43 int toUniformIndex() const { SkASSERT(isValid()); return ~fValue; } |
44 | 44 |
45 int fValue; | 45 int fValue; |
46 friend class GrGLUniformManager; // For accessing toUniformIndex(). | 46 friend class GrGLUniformManager; // For accessing toUniformIndex(). |
47 }; | 47 }; |
48 | 48 |
49 GrGLUniformManager(const GrGLContext& context) : fContext(context) {} | 49 GrGLUniformManager(GrGpuGL* gpu) : fGpu(gpu) {} |
50 | 50 |
51 UniformHandle appendUniform(GrSLType type, int arrayCount = GrGLShaderVar::k
NonArray); | 51 UniformHandle appendUniform(GrSLType type, int arrayCount = GrGLShaderVar::k
NonArray); |
52 | 52 |
53 /** Functions for uploading uniform values. The varities ending in v can be
used to upload to an | 53 /** Functions for uploading uniform values. The varities ending in v can be
used to upload to an |
54 * array of uniforms. offset + arrayCount must be <= the array count of the
uniform. | 54 * array of uniforms. offset + arrayCount must be <= the array count of the
uniform. |
55 */ | 55 */ |
56 void setSampler(UniformHandle, GrGLint texUnit) const; | 56 void setSampler(UniformHandle, GrGLint texUnit) const; |
57 void set1f(UniformHandle, GrGLfloat v0) const; | 57 void set1f(UniformHandle, GrGLfloat v0) const; |
58 void set1fv(UniformHandle, int offset, int arrayCount, const GrGLfloat v[])
const; | 58 void set1fv(UniformHandle, int offset, int arrayCount, const GrGLfloat v[])
const; |
59 void set2f(UniformHandle, GrGLfloat, GrGLfloat) const; | 59 void set2f(UniformHandle, GrGLfloat, GrGLfloat) const; |
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97 }; | 97 }; |
98 | 98 |
99 struct Uniform { | 99 struct Uniform { |
100 GrGLint fVSLocation; | 100 GrGLint fVSLocation; |
101 GrGLint fFSLocation; | 101 GrGLint fFSLocation; |
102 GrSLType fType; | 102 GrSLType fType; |
103 int fArrayCount; | 103 int fArrayCount; |
104 }; | 104 }; |
105 | 105 |
106 SkTArray<Uniform, true> fUniforms; | 106 SkTArray<Uniform, true> fUniforms; |
107 const GrGLContext& fContext; | 107 GrGpuGL* fGpu; |
108 }; | 108 }; |
109 | 109 |
110 #endif | 110 #endif |
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