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Side by Side Diff: src/gpu/gl/GrGLXferProcessor.h

Issue 1428543003: Create GLSL base class for ProgramDataManager (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: add space Created 5 years, 1 month ago
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1 /* 1 /*
2 * Copyright 2014 Google Inc. 2 * Copyright 2014 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 GrGLXferProcessor_DEFINED 8 #ifndef GrGLXferProcessor_DEFINED
9 #define GrGLXferProcessor_DEFINED 9 #define GrGLXferProcessor_DEFINED
10 10
11 #include "GrGLFragmentProcessor.h" 11 #include "GrGLProcessor.h"
12 #include "glsl/GrGLSLProgramDataManager.h"
12 13
13 class GrGLXPBuilder; 14 class GrGLXPBuilder;
14 class GrXferProcessor; 15 class GrXferProcessor;
15 16
16 class GrGLXferProcessor { 17 class GrGLXferProcessor {
17 public: 18 public:
18 GrGLXferProcessor() {} 19 GrGLXferProcessor() {}
19 virtual ~GrGLXferProcessor() {} 20 virtual ~GrGLXferProcessor() {}
20 21
21 typedef GrGLProcessor::TextureSamplerArray TextureSamplerArray; 22 typedef GrGLProcessor::TextureSamplerArray TextureSamplerArray;
(...skipping 27 matching lines...) Expand all
49 */ 50 */
50 void emitCode(const EmitArgs&); 51 void emitCode(const EmitArgs&);
51 52
52 /** A GrGLXferProcessor instance can be reused with any GrGLXferProcessor th at produces 53 /** A GrGLXferProcessor instance can be reused with any GrGLXferProcessor th at produces
53 the same stage key; this function reads data from a GrGLXferProcessor an d uploads any 54 the same stage key; this function reads data from a GrGLXferProcessor an d uploads any
54 uniform variables required by the shaders created in emitCode(). The Gr XferProcessor 55 uniform variables required by the shaders created in emitCode(). The Gr XferProcessor
55 parameter is guaranteed to be of the same type that created this GrGLXfe rProcessor and 56 parameter is guaranteed to be of the same type that created this GrGLXfe rProcessor and
56 to have an identical processor key as the one that created this GrGLXfer Processor. This 57 to have an identical processor key as the one that created this GrGLXfer Processor. This
57 function calls onSetData on the subclass of GrGLXferProcessor 58 function calls onSetData on the subclass of GrGLXferProcessor
58 */ 59 */
59 void setData(const GrGLProgramDataManager& pdm, const GrXferProcessor& xp); 60 void setData(const GrGLSLProgramDataManager& pdm, const GrXferProcessor& xp) ;
60 61
61 private: 62 private:
62 /** 63 /**
63 * Called by emitCode() when the XP will not be performing a dst read. This method is 64 * Called by emitCode() when the XP will not be performing a dst read. This method is
64 * responsible for both blending and coverage. A subclass only needs to impl ement this method if 65 * responsible for both blending and coverage. A subclass only needs to impl ement this method if
65 * it can construct a GrXferProcessor that will not read the dst color. 66 * it can construct a GrXferProcessor that will not read the dst color.
66 */ 67 */
67 virtual void emitOutputsForBlendState(const EmitArgs&) { 68 virtual void emitOutputsForBlendState(const EmitArgs&) {
68 SkFAIL("emitOutputsForBlendState not implemented."); 69 SkFAIL("emitOutputsForBlendState not implemented.");
69 } 70 }
70 71
71 /** 72 /**
72 * Called by emitCode() when the XP will perform a dst read. This method onl y needs to supply 73 * Called by emitCode() when the XP will perform a dst read. This method onl y needs to supply
73 * the blending logic. The base class applies coverage. A subclass only need s to implement this 74 * the blending logic. The base class applies coverage. A subclass only need s to implement this
74 * method if it can construct a GrXferProcessor that reads the dst color. 75 * method if it can construct a GrXferProcessor that reads the dst color.
75 */ 76 */
76 virtual void emitBlendCodeForDstRead(GrGLXPBuilder*, const char* srcColor, c onst char* dstColor, 77 virtual void emitBlendCodeForDstRead(GrGLXPBuilder*, const char* srcColor, c onst char* dstColor,
77 const char* outColor, const GrXferProce ssor&) { 78 const char* outColor, const GrXferProce ssor&) {
78 SkFAIL("emitBlendCodeForDstRead not implemented."); 79 SkFAIL("emitBlendCodeForDstRead not implemented.");
79 } 80 }
80 81
81 virtual void onSetData(const GrGLProgramDataManager&, const GrXferProcessor& ) = 0; 82 virtual void onSetData(const GrGLSLProgramDataManager&, const GrXferProcesso r&) = 0;
82 83
83 GrGLProgramDataManager::UniformHandle fDstTopLeftUni; 84 GrGLSLProgramDataManager::UniformHandle fDstTopLeftUni;
84 GrGLProgramDataManager::UniformHandle fDstScaleUni; 85 GrGLSLProgramDataManager::UniformHandle fDstScaleUni;
85 86
86 typedef GrGLProcessor INHERITED; 87 typedef GrGLProcessor INHERITED;
87 }; 88 };
88 #endif 89 #endif
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