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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 GrGLSLTextureSampler_DEFINED | 8 #ifndef GrGLSLTextureSampler_DEFINED |
9 #define GrGLSLTextureSampler_DEFINED | 9 #define GrGLSLTextureSampler_DEFINED |
10 | 10 |
11 #include "GrShaderVar.h" | 11 #include "GrShaderVar.h" |
12 #include "GrTextureAccess.h" | 12 #include "GrTextureAccess.h" |
13 #include "glsl/GrGLSLProgramDataManager.h" | 13 #include "glsl/GrGLSLProgramDataManager.h" |
14 | 14 |
15 class GrGLSLTextureSampler { | 15 class GrGLSLTextureSampler { |
16 public: | 16 public: |
17 typedef GrGLSLProgramDataManager::UniformHandle UniformHandle; | 17 typedef GrGLSLProgramDataManager::UniformHandle UniformHandle; |
18 typedef SkTArray<GrGLSLTextureSampler> TextureSamplerArray; | 18 typedef SkTArray<GrGLSLTextureSampler> TextureSamplerArray; |
19 | 19 |
20 GrGLSLTextureSampler(UniformHandle uniform, const GrTextureAccess& access) | 20 GrGLSLTextureSampler(UniformHandle uniform, const GrTextureAccess& access) |
21 : fSamplerUniform(uniform) | 21 : fSamplerUniform(uniform) |
22 , fConfig(access.getTexture()->config()) { | 22 , fConfigComponentMask(GrPixelConfigComponentMask(access.getTexture()->c
onfig())) { |
23 SkASSERT(kUnknown_GrPixelConfig != fConfig); | 23 SkASSERT(0 != fConfigComponentMask); |
24 memcpy(fSwizzle, access.getSwizzle(), 5); | 24 memcpy(fSwizzle, access.getSwizzle(), 5); |
25 } | 25 } |
26 | 26 |
27 GrPixelConfig config() const { return fConfig; } | 27 // bitfield of GrColorComponentFlags present in the texture's config. |
| 28 uint32_t configComponentMask() const { return fConfigComponentMask; } |
28 // this is .abcd | 29 // this is .abcd |
29 const char* swizzle() const { return fSwizzle; } | 30 const char* swizzle() const { return fSwizzle; } |
30 | 31 |
31 private: | 32 private: |
32 UniformHandle fSamplerUniform; | 33 UniformHandle fSamplerUniform; |
33 GrPixelConfig fConfig; | 34 uint32_t fConfigComponentMask; |
34 char fSwizzle[5]; | 35 char fSwizzle[5]; |
35 | 36 |
36 friend class GrGLShaderBuilder; | 37 friend class GrGLShaderBuilder; |
37 }; | 38 }; |
38 | 39 |
39 #endif | 40 #endif |
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