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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 "SkTypes.h"
#if GR_TEST_UTILS
#include "../private/GrTextureProxy.h"
#include "../private/SkTArray.h"
#include "GrTestUtils.h"
class SkMatrix;
class GrCaps;
class GrContext;
class GrProxyProvider;
class GrRenderTargetContext;
struct GrProcessorTestData;
class GrTexture;
class GrXPFactory;
class GrGeometryProcessor;
namespace GrProcessorUnitTest {
// Used to access the dummy textures in TestCreate procs.
enum {
kSkiaPMTextureIdx = 0,
kAlphaTextureIdx = 1,
};
/** This allows parent FPs to implement a test create with known leaf children in order to avoid
creating an unbounded FP tree which may overflow various shader limits. */
std::unique_ptr<GrFragmentProcessor> MakeChildFP(GrProcessorTestData*);
}
/*
* GrProcessorTestData is an argument struct to TestCreate functions
* fTextures are valid textures that can optionally be used to construct
* TextureSampler. 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.
*/
struct GrProcessorTestData {
GrProcessorTestData(SkRandom* random,
GrContext* context,
const GrRenderTargetContext* renderTargetContext,
sk_sp<GrTextureProxy> proxies[2])
: fRandom(random)
, fRenderTargetContext(renderTargetContext)
, fContext(context) {
SkASSERT(proxies[0] && proxies[1]);
fProxies[0] = proxies[0];
fProxies[1] = proxies[1];
}
SkRandom* fRandom;
const GrRenderTargetContext* fRenderTargetContext;
GrContext* context() { return fContext; }
GrResourceProvider* resourceProvider();
GrProxyProvider* proxyProvider();
const GrCaps* caps();
sk_sp<GrTextureProxy> textureProxy(int index) { return fProxies[index]; }
private:
GrContext* fContext;
sk_sp<GrTextureProxy> fProxies[2];
};
#if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
class GrProcessor;
class GrTexture;
template <class ProcessorSmartPtr>
class GrProcessorTestFactory : private SkNoncopyable {
public:
using Processor = typename ProcessorSmartPtr::element_type;
using MakeProc = ProcessorSmartPtr (*)(GrProcessorTestData*);
GrProcessorTestFactory(MakeProc makeProc) {
fMakeProc = makeProc;
GetFactories()->push_back(this);
}
/** Pick a random factory function and create a processor. */
static ProcessorSmartPtr Make(GrProcessorTestData* data) {
VerifyFactoryCount();
SkASSERT(GetFactories()->count());
uint32_t idx = data->fRandom->nextRangeU(0, GetFactories()->count() - 1);
return MakeIdx(idx, data);
}
/** Number of registered factory functions */
static int Count() { return GetFactories()->count(); }
/** Use factory function at Index idx to create a processor. */
static ProcessorSmartPtr MakeIdx(int idx, GrProcessorTestData* data) {
GrProcessorTestFactory<ProcessorSmartPtr>* factory = (*GetFactories())[idx];
ProcessorSmartPtr processor = factory->fMakeProc(data);
SkASSERT(processor);
return processor;
}
private:
/**
* A test function which verifies the count of factories.
*/
static void VerifyFactoryCount();
MakeProc fMakeProc;
static SkTArray<GrProcessorTestFactory<ProcessorSmartPtr>*, true>* GetFactories();
};
using GrFragmentProcessorTestFactory = GrProcessorTestFactory<std::unique_ptr<GrFragmentProcessor>>;
using GrGeometryProcessorTestFactory = GrProcessorTestFactory<sk_sp<GrGeometryProcessor>>;
class GrXPFactoryTestFactory : private SkNoncopyable {
public:
using GetFn = const GrXPFactory*(GrProcessorTestData*);
GrXPFactoryTestFactory(GetFn* getProc) : fGetProc(getProc) { GetFactories()->push_back(this); }
static const GrXPFactory* Get(GrProcessorTestData* data) {
VerifyFactoryCount();
SkASSERT(GetFactories()->count());
uint32_t idx = data->fRandom->nextRangeU(0, GetFactories()->count() - 1);
const GrXPFactory* xpf = (*GetFactories())[idx]->fGetProc(data);
SkASSERT(xpf);
return xpf;
}
private:
static void VerifyFactoryCount();
GetFn* fGetProc;
static SkTArray<GrXPFactoryTestFactory*, 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 GrGeometryProcessorTestFactory gTestFactory SK_UNUSED; \
static sk_sp<GrGeometryProcessor> TestCreate(GrProcessorTestData*);
#define GR_DECLARE_FRAGMENT_PROCESSOR_TEST \
static GrFragmentProcessorTestFactory gTestFactory SK_UNUSED; \
static std::unique_ptr<GrFragmentProcessor> TestCreate(GrProcessorTestData*);
#define GR_DECLARE_XP_FACTORY_TEST \
static GrXPFactoryTestFactory gTestFactory SK_UNUSED; \
static const GrXPFactory* TestGet(GrProcessorTestData*);
/** GrProcessor subclasses should insert this macro in their implementation file. They must then
* also implement this static function:
* GrProcessor* TestCreate(GrProcessorTestData*);
*/
#define GR_DEFINE_FRAGMENT_PROCESSOR_TEST(Effect) \
GrFragmentProcessorTestFactory Effect::gTestFactory(Effect::TestCreate)
#define GR_DEFINE_GEOMETRY_PROCESSOR_TEST(Effect) \
GrGeometryProcessorTestFactory Effect::gTestFactory(Effect::TestCreate)
#define GR_DEFINE_XP_FACTORY_TEST(Factory) \
GrXPFactoryTestFactory Factory::gTestFactory(Factory::TestGet)
#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 std::unique_ptr<GrFragmentProcessor> TestCreate(GrProcessorTestData*);
#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_GEOMETRY_PROCESSOR_TEST \
static sk_sp<GrGeometryProcessor> TestCreate(GrProcessorTestData*);
#define GR_DEFINE_GEOMETRY_PROCESSOR_TEST(X)
// The unit test relies on static initializers. Just declare the TestGet function so that
// its definitions will compile.
#define GR_DECLARE_XP_FACTORY_TEST \
const GrXPFactory* TestGet(GrProcessorTestData*);
#define GR_DEFINE_XP_FACTORY_TEST(X)
#endif // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
#else // GR_TEST_UTILS
#define GR_DECLARE_GEOMETRY_PROCESSOR_TEST
#define GR_DECLARE_FRAGMENT_PROCESSOR_TEST
#define GR_DECLARE_XP_FACTORY_TEST
#define GR_DEFINE_FRAGMENT_PROCESSOR_TEST(...)
#define GR_DEFINE_GEOMETRY_PROCESSOR_TEST(...)
#define GR_DEFINE_XP_FACTORY_TEST(...)
#define GR_DECLARE_FRAGMENT_PROCESSOR_TEST
#define GR_DEFINE_FRAGMENT_PROCESSOR_TEST(...)
#define GR_DECLARE_GEOMETRY_PROCESSOR_TEST
#define GR_DEFINE_GEOMETRY_PROCESSOR_TEST(...)
#define GR_DECLARE_XP_FACTORY_TEST
#define GR_DEFINE_XP_FACTORY_TEST(...)
#endif // GR_TEST_UTILS
#endif // GrProcessorUnitTest_DEFINED
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