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comparison: gfx/skia/trunk/include/gpu/GrEffectUnitTest.h
gfx/skia/trunk/include/gpu/GrEffectUnitTest.h
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- TOR_BUG_3246
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| -1:000000000000 | 0:172763805c74 |
|---|---|
| 1 /* | |
| 2 * Copyright 2012 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef GrEffectUnitTest_DEFINED | |
| 9 #define GrEffectUnitTest_DEFINED | |
| 10 | |
| 11 #include "SkRandom.h" | |
| 12 #include "SkTArray.h" | |
| 13 #include "SkTypes.h" | |
| 14 | |
| 15 class SkMatrix; | |
| 16 class GrDrawTargetCaps; | |
| 17 | |
| 18 namespace GrEffectUnitTest { | |
| 19 // Used to access the dummy textures in TestCreate procs. | |
| 20 enum { | |
| 21 kSkiaPMTextureIdx = 0, | |
| 22 kAlphaTextureIdx = 1, | |
| 23 }; | |
| 24 | |
| 25 /** | |
| 26 * A helper for use in GrEffect::TestCreate functions. | |
| 27 */ | |
| 28 const SkMatrix& TestMatrix(SkRandom*); | |
| 29 | |
| 30 } | |
| 31 | |
| 32 #if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS | |
| 33 | |
| 34 class GrContext; | |
| 35 class GrEffectRef; | |
| 36 class GrTexture; | |
| 37 | |
| 38 class GrEffectTestFactory : public SkNoncopyable { | |
| 39 public: | |
| 40 | |
| 41 typedef GrEffectRef* (*CreateProc)(SkRandom*, | |
| 42 GrContext*, | |
| 43 const GrDrawTargetCaps& caps, | |
| 44 GrTexture* dummyTextures[]); | |
| 45 | |
| 46 GrEffectTestFactory(CreateProc createProc) { | |
| 47 fCreateProc = createProc; | |
| 48 GetFactories()->push_back(this); | |
| 49 } | |
| 50 | |
| 51 static GrEffectRef* CreateStage(SkRandom* random, | |
| 52 GrContext* context, | |
| 53 const GrDrawTargetCaps& caps, | |
| 54 GrTexture* dummyTextures[]) { | |
| 55 uint32_t idx = random->nextRangeU(0, GetFactories()->count() - 1); | |
| 56 GrEffectTestFactory* factory = (*GetFactories())[idx]; | |
| 57 return factory->fCreateProc(random, context, caps, dummyTextures); | |
| 58 } | |
| 59 | |
| 60 private: | |
| 61 CreateProc fCreateProc; | |
| 62 static SkTArray<GrEffectTestFactory*, true>* GetFactories(); | |
| 63 }; | |
| 64 | |
| 65 /** GrEffect subclasses should insert this macro in their declaration to be included in the | |
| 66 * program generation unit test. | |
| 67 */ | |
| 68 #define GR_DECLARE_EFFECT_TEST \ | |
| 69 static GrEffectTestFactory gTestFactory; \ | |
| 70 static GrEffectRef* TestCreate(SkRandom*, \ | |
| 71 GrContext*, \ | |
| 72 const GrDrawTargetCaps&, \ | |
| 73 GrTexture* dummyTextures[2]) | |
| 74 | |
| 75 /** GrEffect subclasses should insert this macro in their implementation file. They must then | |
| 76 * also implement this static function: | |
| 77 * GrEffect* TestCreate(SkRandom*, | |
| 78 * GrContext*, | |
| 79 * const GrDrawTargetCaps&, | |
| 80 * GrTexture* dummyTextures[2]); | |
| 81 * dummyTextures[] are valid textures that can optionally be used to construct GrTextureAccesses. | |
| 82 * The first texture has config kSkia8888_GrPixelConfig and the second has | |
| 83 * kAlpha_8_GrPixelConfig. TestCreate functions are also free to create additional textures using | |
| 84 * the GrContext. | |
| 85 */ | |
| 86 #define GR_DEFINE_EFFECT_TEST(Effect) \ | |
| 87 GrEffectTestFactory Effect :: gTestFactory(Effect :: TestCreate) | |
| 88 | |
| 89 #else // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS | |
| 90 | |
| 91 // The unit test relies on static initializers. Just declare the TestCreate function so that | |
| 92 // its definitions will compile. | |
| 93 #define GR_DECLARE_EFFECT_TEST \ | |
| 94 static GrEffectRef* TestCreate(SkRandom*, \ | |
| 95 GrContext*, \ | |
| 96 const GrDrawTargetCaps&, \ | |
| 97 GrTexture* dummyTextures[2]) | |
| 98 #define GR_DEFINE_EFFECT_TEST(X) | |
| 99 | |
| 100 #endif // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS | |
| 101 #endif |
