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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 GrProcessor_DEFINED | 8 #ifndef GrProcessor_DEFINED |
9 #define GrProcessor_DEFINED | 9 #define GrProcessor_DEFINED |
10 | 10 |
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50 | 50 |
51 /** Provides custom shader code to the Ganesh shading pipeline. GrProcessor obje
cts *must* be | 51 /** Provides custom shader code to the Ganesh shading pipeline. GrProcessor obje
cts *must* be |
52 immutable: after being constructed, their fields may not change. | 52 immutable: after being constructed, their fields may not change. |
53 | 53 |
54 Dynamically allocated GrProcessors are managed by a per-thread memory pool.
The ref count of an | 54 Dynamically allocated GrProcessors are managed by a per-thread memory pool.
The ref count of an |
55 processor must reach 0 before the thread terminates and the pool is destroye
d. To create a | 55 processor must reach 0 before the thread terminates and the pool is destroye
d. To create a |
56 static processor use the helper macro GR_CREATE_STATIC_PROCESSOR declared be
low. | 56 static processor use the helper macro GR_CREATE_STATIC_PROCESSOR declared be
low. |
57 */ | 57 */ |
58 class GrProcessor : public GrProgramElement { | 58 class GrProcessor : public GrProgramElement { |
59 public: | 59 public: |
60 SK_DECLARE_INST_COUNT(GrProcessor) | |
61 | |
62 virtual ~GrProcessor(); | 60 virtual ~GrProcessor(); |
63 | 61 |
64 /** Human-meaningful string to identify this prcoessor; may be embedded | 62 /** Human-meaningful string to identify this prcoessor; may be embedded |
65 in generated shader code. */ | 63 in generated shader code. */ |
66 virtual const char* name() const = 0; | 64 virtual const char* name() const = 0; |
67 | 65 |
68 int numTextures() const { return fTextureAccesses.count(); } | 66 int numTextures() const { return fTextureAccesses.count(); } |
69 | 67 |
70 /** Returns the access pattern for the texture at index. index must be valid
according to | 68 /** Returns the access pattern for the texture at index. index must be valid
according to |
71 numTextures(). */ | 69 numTextures(). */ |
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148 /** | 146 /** |
149 * This creates a processor outside of the memory pool. The processor's destruct
or will be called | 147 * This creates a processor outside of the memory pool. The processor's destruct
or will be called |
150 * at global destruction time. NAME will be the name of the created instance. | 148 * at global destruction time. NAME will be the name of the created instance. |
151 */ | 149 */ |
152 #define GR_CREATE_STATIC_PROCESSOR(NAME, PROC_CLASS, ARGS)
\ | 150 #define GR_CREATE_STATIC_PROCESSOR(NAME, PROC_CLASS, ARGS)
\ |
153 static SkAlignedSStorage<sizeof(PROC_CLASS)> g_##NAME##_Storage;
\ | 151 static SkAlignedSStorage<sizeof(PROC_CLASS)> g_##NAME##_Storage;
\ |
154 static PROC_CLASS* NAME SkNEW_PLACEMENT_ARGS(g_##NAME##_Storage.get(), PROC_CLAS
S, ARGS); \ | 152 static PROC_CLASS* NAME SkNEW_PLACEMENT_ARGS(g_##NAME##_Storage.get(), PROC_CLAS
S, ARGS); \ |
155 static SkAutoTDestroy<GrProcessor> NAME##_ad(NAME); | 153 static SkAutoTDestroy<GrProcessor> NAME##_ad(NAME); |
156 | 154 |
157 #endif | 155 #endif |
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