150 lines
5.6 KiB
C++
150 lines
5.6 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 GrProcessorUnitTest_DEFINED
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#define GrProcessorUnitTest_DEFINED
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#include "GrTestUtils.h"
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#include "SkTArray.h"
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#include "SkTypes.h"
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class SkMatrix;
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class GrCaps;
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class GrContext;
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struct GrProcessorTestData;
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namespace GrProcessorUnitTest {
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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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/** This allows parent FPs to implement a test create with known leaf children in order to avoid
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creating an unbounded FP tree which may overflow various shader limits. */
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const GrFragmentProcessor* CreateChildFP(GrProcessorTestData*);
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}
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/*
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* GrProcessorTestData is an argument struct to TestCreate functions
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* fTextures are valid textures that can optionally be used to construct
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* GrTextureAccesses. 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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struct GrProcessorTestData {
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GrProcessorTestData(SkRandom* random,
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GrContext* context,
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const GrCaps* caps,
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GrTexture* textures[2])
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: fRandom(random)
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, fContext(context)
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, fCaps(caps) {
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fTextures[0] = textures[0];
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fTextures[1] = textures[1];
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}
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SkRandom* fRandom;
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GrContext* fContext;
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const GrCaps* fCaps;
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GrTexture* fTextures[2];
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};
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#if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
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class GrProcessor;
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class GrTexture;
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template <class Processor> class GrProcessorTestFactory : SkNoncopyable {
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public:
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typedef const Processor* (*CreateProc)(GrProcessorTestData*);
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GrProcessorTestFactory(CreateProc createProc) {
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fCreateProc = createProc;
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GetFactories()->push_back(this);
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}
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/** Pick a random factory function and create a processor. */
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static const Processor* Create(GrProcessorTestData* data) {
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VerifyFactoryCount();
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SkASSERT(GetFactories()->count());
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uint32_t idx = data->fRandom->nextRangeU(0, GetFactories()->count() - 1);
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return CreateIdx(idx, data);
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}
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/** Number of registered factory functions */
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static int Count() { return GetFactories()->count(); }
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/** Use factory function at Index idx to create a processor. */
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static const Processor* CreateIdx(int idx, GrProcessorTestData* data) {
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GrProcessorTestFactory<Processor>* factory = (*GetFactories())[idx];
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return factory->fCreateProc(data);
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}
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/*
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* A test function which verifies the count of factories.
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*/
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static void VerifyFactoryCount();
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private:
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CreateProc fCreateProc;
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static SkTArray<GrProcessorTestFactory<Processor>*, true>* GetFactories();
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};
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/** GrProcessor 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_GEOMETRY_PROCESSOR_TEST \
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static GrProcessorTestFactory<GrGeometryProcessor> gTestFactory SK_UNUSED; \
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static const GrGeometryProcessor* TestCreate(GrProcessorTestData*)
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#define GR_DECLARE_FRAGMENT_PROCESSOR_TEST \
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static GrProcessorTestFactory<GrFragmentProcessor> gTestFactory SK_UNUSED; \
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static const GrFragmentProcessor* TestCreate(GrProcessorTestData*)
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#define GR_DECLARE_XP_FACTORY_TEST \
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static GrProcessorTestFactory<GrXPFactory> gTestFactory SK_UNUSED; \
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static const GrXPFactory* TestCreate(GrProcessorTestData*)
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/** GrProcessor 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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* GrProcessor* TestCreate(GrProcessorTestData*);
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*/
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#define GR_DEFINE_FRAGMENT_PROCESSOR_TEST(Effect) \
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GrProcessorTestFactory<GrFragmentProcessor> Effect :: gTestFactory(Effect :: TestCreate)
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#define GR_DEFINE_XP_FACTORY_TEST(Factory) \
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GrProcessorTestFactory<GrXPFactory> Factory :: gTestFactory(Factory :: TestCreate)
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#define GR_DEFINE_GEOMETRY_PROCESSOR_TEST(Effect) \
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GrProcessorTestFactory<GrGeometryProcessor> 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_FRAGMENT_PROCESSOR_TEST \
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static const GrFragmentProcessor* TestCreate(GrProcessorTestData*)
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#define GR_DEFINE_FRAGMENT_PROCESSOR_TEST(X)
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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_XP_FACTORY_TEST \
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static const GrXPFactory* TestCreate(GrProcessorTestData*)
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#define GR_DEFINE_XP_FACTORY_TEST(X)
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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_GEOMETRY_PROCESSOR_TEST \
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static const GrGeometryProcessor* TestCreate(GrProcessorTestData*)
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#define GR_DEFINE_GEOMETRY_PROCESSOR_TEST(X)
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#endif // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
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#endif
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