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1 /* | 1 /* |
2 * Copyright 2016 Google Inc. | 2 * Copyright 2016 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 GrGLSLSampler_DEFINED | 8 #ifndef GrGLSLSampler_DEFINED |
9 #define GrGLSLSampler_DEFINED | 9 #define GrGLSLSampler_DEFINED |
10 | 10 |
11 #include "GrTypes.h" | 11 #include "GrTypes.h" |
12 #include "GrTypesPriv.h" | 12 #include "SkTArray.h" |
13 #include "SkString.h" | 13 #include "glsl/GrGLSLProgramDataManager.h" |
14 | 14 |
15 class GrGLSLSampler { | 15 class GrGLSLSampler { |
16 public: | 16 public: |
17 virtual ~GrGLSLSampler() {} | 17 typedef GrGLSLProgramDataManager::UniformHandle UniformHandle; |
| 18 typedef SkTArray<GrGLSLSampler> SamplerArray; |
18 | 19 |
19 explicit GrGLSLSampler(uint32_t visibility, GrPixelConfig config) | 20 GrGLSLSampler(UniformHandle uniform, GrPixelConfig config) |
20 : fVisibility(visibility) | 21 : fSamplerUniform(uniform) |
21 , fConfig(config) { | 22 , fConfig(config) { |
22 SkASSERT(kUnknown_GrPixelConfig != fConfig); | 23 SkASSERT(kUnknown_GrPixelConfig != fConfig); |
23 } | 24 } |
24 | 25 |
25 uint32_t visibility() const { return fVisibility; } | |
26 GrPixelConfig config() const { return fConfig; } | 26 GrPixelConfig config() const { return fConfig; } |
27 virtual GrSLType type() const = 0; | |
28 | |
29 // Returns the string to be used for the sampler in glsl 2D texture function
s (texture, | |
30 // texture2D, etc.) | |
31 const char* getSamplerNameForTexture2D() const { | |
32 SkASSERT(GrSLTypeIs2DTextureType(this->type())); | |
33 return this->onGetSamplerNameForTexture2D(); | |
34 } | |
35 | |
36 // Returns the string to be used for the sampler in glsl texelFetch. | |
37 virtual const char* getSamplerNameForTexelFetch() const = 0; | |
38 | 27 |
39 private: | 28 private: |
40 virtual const char* onGetSamplerNameForTexture2D() const = 0; | 29 UniformHandle fSamplerUniform; |
41 uint32_t fVisibility; | |
42 GrPixelConfig fConfig; | 30 GrPixelConfig fConfig; |
| 31 |
| 32 friend class GrGLSLShaderBuilder; |
43 }; | 33 }; |
44 | 34 |
45 #endif | 35 #endif |
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