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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "src/gpu/GrProcessorUnitTest.h"
#include <memory>
#include "include/gpu/GrRecordingContext.h"
#include "src/gpu/GrFragmentProcessor.h"
#include "src/gpu/GrRecordingContextPriv.h"
#if GR_TEST_UTILS
class GrGeometryProcessor;
GrProcessorTestData::GrProcessorTestData(SkRandom* random, GrRecordingContext* context,
int maxTreeDepth, int numViews, const ViewInfo views[])
: GrProcessorTestData(random, context, maxTreeDepth, numViews, views,
/*inputFP=*/nullptr) {}
GrProcessorTestData::GrProcessorTestData(SkRandom* random, GrRecordingContext* context,
int maxTreeDepth, int numViews, const ViewInfo views[],
std::unique_ptr<GrFragmentProcessor> inputFP)
: fRandom(random)
, fMaxTreeDepth(maxTreeDepth)
, fContext(context)
, fInputFP(std::move(inputFP)) {
fViews.reset(views, numViews);
fArena = std::make_unique<SkArenaAlloc>(1000);
}
GrProcessorTestData::~GrProcessorTestData() {}
GrProxyProvider* GrProcessorTestData::proxyProvider() { return fContext->priv().proxyProvider(); }
const GrCaps* GrProcessorTestData::caps() { return fContext->priv().caps(); }
std::unique_ptr<GrFragmentProcessor> GrProcessorTestData::inputFP() {
if (fCurrentTreeDepth == 0) {
// At the top level of the tree, provide the input FP from the test data.
return fInputFP ? fInputFP->clone() : nullptr;
} else {
// At deeper levels of recursion, synthesize a random input.
return GrProcessorUnitTest::MakeChildFP(this);
}
}
GrProcessorTestData::ViewInfo GrProcessorTestData::randomView() {
SkASSERT(!fViews.empty());
return fViews[fRandom->nextULessThan(fViews.count())];
}
GrProcessorTestData::ViewInfo GrProcessorTestData::randomAlphaOnlyView() {
int numAlphaOnly = 0;
for (const auto& [v, ct, at] : fViews) {
if (GrColorTypeIsAlphaOnly(ct)) {
++numAlphaOnly;
}
}
SkASSERT(numAlphaOnly);
int idx = fRandom->nextULessThan(numAlphaOnly);
for (const auto& [v, ct, at] : fViews) {
if (GrColorTypeIsAlphaOnly(ct) && !idx--) {
return {v, ct, at};
}
}
SkUNREACHABLE;
}
template <class ProcessorSmartPtr>
GrProcessorTestFactory<ProcessorSmartPtr>::GrProcessorTestFactory(MakeProc makeProc,
const char* name)
: fMakeProc(makeProc), fName(name) {
GetFactories()->push_back(this);
}
template <class ProcessorSmartPtr>
ProcessorSmartPtr GrProcessorTestFactory<ProcessorSmartPtr>::Make(GrProcessorTestData* data) {
VerifyFactoryCount();
if (GetFactories()->count() == 0) {
return nullptr;
}
uint32_t idx = data->fRandom->nextULessThan(GetFactories()->count());
return MakeIdx(idx, data);
}
template <class ProcessorSmartPtr>
ProcessorSmartPtr GrProcessorTestFactory<ProcessorSmartPtr>::MakeIdx(int idx,
GrProcessorTestData* data) {
SkASSERT(idx < GetFactories()->count());
GrProcessorTestFactory<ProcessorSmartPtr>* factory = (*GetFactories())[idx];
ProcessorSmartPtr processor = factory->fMakeProc(data);
if (processor == nullptr) {
SK_ABORT("%s: TestCreate returned null", factory->fName.c_str());
}
return processor;
}
template <class ProcessorSmartPtr>
int GrProcessorTestFactory<ProcessorSmartPtr>::Count() {
return GetFactories()->count();
}
GrXPFactoryTestFactory::GrXPFactoryTestFactory(GetFn* getProc) : fGetProc(getProc) {
GetFactories()->push_back(this);
}
const GrXPFactory* GrXPFactoryTestFactory::Get(GrProcessorTestData* data) {
VerifyFactoryCount();
if (GetFactories()->count() == 0) {
return nullptr;
}
uint32_t idx = data->fRandom->nextRangeU(0, GetFactories()->count() - 1);
const GrXPFactory* xpf = (*GetFactories())[idx]->fGetProc(data);
SkASSERT(xpf);
return xpf;
}
/*
* Originally these were both in the processor unit test header, but then it seemed to cause linker
* problems on android.
*/
template <>
SkTArray<GrFragmentProcessorTestFactory*, true>* GrFragmentProcessorTestFactory::GetFactories() {
static SkTArray<GrFragmentProcessorTestFactory*, true> gFactories;
return &gFactories;
}
template <>
SkTArray<GrGeometryProcessorTestFactory*, true>* GrGeometryProcessorTestFactory::GetFactories() {
static SkTArray<GrGeometryProcessorTestFactory*, true> gFactories;
return &gFactories;
}
SkTArray<GrXPFactoryTestFactory*, true>* GrXPFactoryTestFactory::GetFactories() {
static SkTArray<GrXPFactoryTestFactory*, true> gFactories;
return &gFactories;
}
/*
* To ensure we always have successful static initialization, before creating from the factories
* we verify the count is as expected. If a new factory is added, then these numbers must be
* manually adjusted.
*/
static constexpr int kFPFactoryCount = 21;
static constexpr int kGPFactoryCount = 14;
static constexpr int kXPFactoryCount = 4;
template <> void GrFragmentProcessorTestFactory::VerifyFactoryCount() {
if (kFPFactoryCount != GetFactories()->count()) {
SkDebugf("\nExpected %d fragment processor factories, found %d.\n", kFPFactoryCount,
GetFactories()->count());
SK_ABORT("Wrong number of fragment processor factories!");
}
}
template <> void GrGeometryProcessorTestFactory::VerifyFactoryCount() {
if (kGPFactoryCount != GetFactories()->count()) {
SkDebugf("\nExpected %d geometry processor factories, found %d.\n", kGPFactoryCount,
GetFactories()->count());
SK_ABORT("Wrong number of geometry processor factories!");
}
}
void GrXPFactoryTestFactory::VerifyFactoryCount() {
if (kXPFactoryCount != GetFactories()->count()) {
SkDebugf("\nExpected %d xp factory factories, found %d.\n", kXPFactoryCount,
GetFactories()->count());
SK_ABORT("Wrong number of xp factory factories!");
}
}
std::unique_ptr<GrFragmentProcessor> GrProcessorUnitTest::MakeChildFP(GrProcessorTestData* data) {
std::unique_ptr<GrFragmentProcessor> fp;
++data->fCurrentTreeDepth;
if (data->fCurrentTreeDepth > data->fMaxTreeDepth) {
// We've gone too deep, but we can't necessarily return null without risking an assertion.
// Instead, return a known-simple zero-child FP. This limits the recursion, and the
// generated FP will be rejected by the numNonNullChildProcessors check below.
fp = GrFragmentProcessor::MakeColor(SK_PMColor4fTRANSPARENT);
} else {
for (;;) {
fp = GrFragmentProcessorTestFactory::Make(data);
SkASSERT(fp);
// If our tree has already reached its max depth, we must reject FPs that have children.
if (data->fCurrentTreeDepth < data->fMaxTreeDepth ||
fp->numNonNullChildProcessors() == 0) {
break;
}
}
}
--data->fCurrentTreeDepth;
return fp;
}
std::unique_ptr<GrFragmentProcessor> GrProcessorUnitTest::MakeOptionalChildFP(
GrProcessorTestData* data) {
return data->fRandom->nextBool() ? MakeChildFP(data) : nullptr;
}
template class GrProcessorTestFactory<GrGeometryProcessor*>;
template class GrProcessorTestFactory<std::unique_ptr<GrFragmentProcessor>>;
#endif