fec0bc3fc1
Review URL: https://codereview.appspot.com/7311055 git-svn-id: http://skia.googlecode.com/svn/trunk@7640 2bbb7eff-a529-9590-31e7-b0007b416f81
88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef GrEffectUnitTest_DEFINED
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#define GrEffectUnitTest_DEFINED
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#include "SkRandom.h"
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#include "GrNoncopyable.h"
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#include "SkTArray.h"
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class SkMatrix;
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namespace GrEffectUnitTest {
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// Used to access the dummy textures in TestCreate procs.
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enum {
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kSkiaPMTextureIdx = 0,
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kAlphaTextureIdx = 1,
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};
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/**
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* A helper for use in GrEffect::TestCreate functions.
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*/
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const SkMatrix& TestMatrix(SkRandom*);
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}
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#if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
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class GrContext;
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class GrEffectRef;
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class GrTexture;
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class GrEffectTestFactory : GrNoncopyable {
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public:
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typedef GrEffectRef* (*CreateProc)(SkRandom*, GrContext*, GrTexture* dummyTextures[]);
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GrEffectTestFactory(CreateProc createProc) {
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fCreateProc = createProc;
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GetFactories()->push_back(this);
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}
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static GrEffectRef* CreateStage(SkRandom* random,
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GrContext* context,
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GrTexture* dummyTextures[]) {
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uint32_t idx = random->nextRangeU(0, GetFactories()->count() - 1);
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GrEffectTestFactory* factory = (*GetFactories())[idx];
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return factory->fCreateProc(random, context, dummyTextures);
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}
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private:
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CreateProc fCreateProc;
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static SkTArray<GrEffectTestFactory*, true>* GetFactories();
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};
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/** GrEffect subclasses should insert this macro in their declaration to be included in the
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* program generation unit test.
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*/
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#define GR_DECLARE_EFFECT_TEST \
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static GrEffectTestFactory gTestFactory; \
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static GrEffectRef* TestCreate(SkRandom*, GrContext*, GrTexture* dummyTextures[2])
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/** GrEffect subclasses should insert this macro in their implementation file. They must then
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* also implement this static function:
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* GrEffect* TestCreate(SkRandom*, GrContext*, GrTexture* dummyTextures[2]);
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* dummyTextures[] are valid textures that can optionally be used to construct GrTextureAccesses.
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* The first texture has config kSkia8888_GrPixelConfig and the second has
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* kAlpha_8_GrPixelConfig. TestCreate functions are also free to create additional textures using
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* the GrContext.
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*/
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#define GR_DEFINE_EFFECT_TEST(Effect) \
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GrEffectTestFactory Effect :: gTestFactory(Effect :: TestCreate)
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#else // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
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// The unit test relies on static initializers. Just declare the TestCreate function so that
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// its definitions will compile.
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#define GR_DECLARE_EFFECT_TEST \
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static GrEffectRef* TestCreate(SkRandom*, GrContext*, GrTexture* dummyTextures[2])
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#define GR_DEFINE_EFFECT_TEST(X)
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#endif // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
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#endif
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