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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrProcessorUnitTest_DEFINED
#define GrProcessorUnitTest_DEFINED
#include "GrTestUtils.h"
#include "SkTArray.h"
#include "SkTypes.h"
class SkMatrix;
class GrDrawTargetCaps;
namespace GrProcessorUnitTest {
// Used to access the dummy textures in TestCreate procs.
enum {
kSkiaPMTextureIdx = 0,
kAlphaTextureIdx = 1,
};
}
#if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
class GrContext;
class GrProcessor;
class GrTexture;
template <class Processor>
class GrProcessorTestFactory : SkNoncopyable {
public:
typedef Processor* (*CreateProc)(SkRandom*,
GrContext*,
const GrDrawTargetCaps& caps,
GrTexture* dummyTextures[]);
GrProcessorTestFactory(CreateProc createProc) {
fCreateProc = createProc;
GetFactories()->push_back(this);
}
static Processor* CreateStage(SkRandom* random,
GrContext* context,
const GrDrawTargetCaps& caps,
GrTexture* dummyTextures[]) {
VerifyFactoryCount();
SkASSERT(GetFactories()->count());
uint32_t idx = random->nextRangeU(0, GetFactories()->count() - 1);
GrProcessorTestFactory<Processor>* factory = (*GetFactories())[idx];
return factory->fCreateProc(random, context, caps, dummyTextures);
}
/*
* A test function which verifies the count of factories.
*/
static void VerifyFactoryCount();
private:
CreateProc fCreateProc;
static SkTArray<GrProcessorTestFactory<Processor>*, true>* GetFactories();
};
/** GrProcessor subclasses should insert this macro in their declaration to be included in the
* program generation unit test.
*/
#define GR_DECLARE_GEOMETRY_PROCESSOR_TEST \
static GrProcessorTestFactory<GrGeometryProcessor> gTestFactory SK_UNUSED; \
static GrGeometryProcessor* TestCreate(SkRandom*, \
GrContext*, \
const GrDrawTargetCaps&, \
GrTexture* dummyTextures[2])
#define GR_DECLARE_FRAGMENT_PROCESSOR_TEST \
static GrProcessorTestFactory<GrFragmentProcessor> gTestFactory SK_UNUSED; \
static GrFragmentProcessor* TestCreate(SkRandom*, \
GrContext*, \
const GrDrawTargetCaps&, \
GrTexture* dummyTextures[2])
#define GR_DECLARE_XP_FACTORY_TEST \
static GrProcessorTestFactory<GrXPFactory> gTestFactory SK_UNUSED; \
static GrXPFactory* TestCreate(SkRandom*, \
GrContext*, \
const GrDrawTargetCaps&, \
GrTexture* dummyTextures[2])
/** GrProcessor subclasses should insert this macro in their implementation file. They must then
* also implement this static function:
* GrProcessor* TestCreate(SkRandom*,
* GrContext*,
* const GrDrawTargetCaps&,
* GrTexture* dummyTextures[2]);
* dummyTextures[] are valid textures that can optionally be used to construct GrTextureAccesses.
* The first texture has config kSkia8888_GrPixelConfig and the second has
* kAlpha_8_GrPixelConfig. TestCreate functions are also free to create additional textures using
* the GrContext.
*/
#define GR_DEFINE_FRAGMENT_PROCESSOR_TEST(Effect) \
GrProcessorTestFactory<GrFragmentProcessor> Effect :: gTestFactory(Effect :: TestCreate)
#define GR_DEFINE_XP_FACTORY_TEST(Factory) \
GrProcessorTestFactory<GrXPFactory> Factory :: gTestFactory(Factory :: TestCreate)
#define GR_DEFINE_GEOMETRY_PROCESSOR_TEST(Effect) \
GrProcessorTestFactory<GrGeometryProcessor> Effect :: gTestFactory(Effect :: TestCreate)
#else // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
// The unit test relies on static initializers. Just declare the TestCreate function so that
// its definitions will compile.
#define GR_DECLARE_FRAGMENT_PROCESSOR_TEST \
static GrFragmentProcessor* TestCreate(SkRandom*, \
GrContext*, \
const GrDrawTargetCaps&, \
GrTexture* dummyTextures[2])
#define GR_DEFINE_FRAGMENT_PROCESSOR_TEST(X)
// The unit test relies on static initializers. Just declare the TestCreate function so that
// its definitions will compile.
#define GR_DECLARE_XP_FACTORY_TEST \
static GrXPFactory* TestCreate(SkRandom*, \
GrContext*, \
const GrDrawTargetCaps&, \
GrTexture* dummyTextures[2])
#define GR_DEFINE_XP_FACTORY_TEST(X)
// The unit test relies on static initializers. Just declare the TestCreate function so that
// its definitions will compile.
#define GR_DECLARE_GEOMETRY_PROCESSOR_TEST \
static GrGeometryProcessor* TestCreate(SkRandom*, \
GrContext*, \
const GrDrawTargetCaps&, \
GrTexture* dummyTextures[2])
#define GR_DEFINE_GEOMETRY_PROCESSOR_TEST(X)
#endif // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
#endif
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