tools/gpu/GrTest.cpp - skia - Git at Google

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */

 #include "GrTest.h"

 #include "GrContextOptions.h"
 #include "GrDrawOpAtlas.h"
 #include "GrDrawingManager.h"
 #include "GrGpuResourceCacheAccess.h"
 #include "GrPipelineBuilder.h"
 #include "GrRenderTargetContextPriv.h"
 #include "GrRenderTargetProxy.h"
 #include "GrResourceCache.h"
 #include "GrSemaphore.h"

 #include "SkGrPriv.h"
 #include "SkImage_Gpu.h"
 #include "SkMathPriv.h"
 #include "SkString.h"

 #include "text/GrAtlasGlyphCache.h"
 #include "text/GrTextBlobCache.h"

 namespace GrTest {
 void SetupAlwaysEvictAtlas(GrContext* context) {
     // These sizes were selected because they allow each atlas to hold a single plot and will thus
     // stress the atlas
     int dim = GrDrawOpAtlas::kGlyphMaxDim;
     GrDrawOpAtlasConfig configs[3];
     configs[kA8_GrMaskFormat].fWidth = dim;
     configs[kA8_GrMaskFormat].fHeight = dim;
     configs[kA8_GrMaskFormat].fLog2Width = SkNextLog2(dim);
     configs[kA8_GrMaskFormat].fLog2Height = SkNextLog2(dim);
     configs[kA8_GrMaskFormat].fPlotWidth = dim;
     configs[kA8_GrMaskFormat].fPlotHeight = dim;

     configs[kA565_GrMaskFormat].fWidth = dim;
     configs[kA565_GrMaskFormat].fHeight = dim;
     configs[kA565_GrMaskFormat].fLog2Width = SkNextLog2(dim);
     configs[kA565_GrMaskFormat].fLog2Height = SkNextLog2(dim);
     configs[kA565_GrMaskFormat].fPlotWidth = dim;
     configs[kA565_GrMaskFormat].fPlotHeight = dim;

     configs[kARGB_GrMaskFormat].fWidth = dim;
     configs[kARGB_GrMaskFormat].fHeight = dim;
     configs[kARGB_GrMaskFormat].fLog2Width = SkNextLog2(dim);
     configs[kARGB_GrMaskFormat].fLog2Height = SkNextLog2(dim);
     configs[kARGB_GrMaskFormat].fPlotWidth = dim;
     configs[kARGB_GrMaskFormat].fPlotHeight = dim;

     context->setTextContextAtlasSizes_ForTesting(configs);
 }
 };

 bool GrSurfaceProxy::isWrapped_ForTesting() const {
     return SkToBool(fTarget);
 }

 bool GrRenderTargetContext::isWrapped_ForTesting() const {
     return fRenderTargetProxy->isWrapped_ForTesting();
 }

 void GrContext::setTextBlobCacheLimit_ForTesting(size_t bytes) {
     fTextBlobCache->setBudget(bytes);
 }

 void GrContext::setTextContextAtlasSizes_ForTesting(const GrDrawOpAtlasConfig* configs) {
     fAtlasGlyphCache->setAtlasSizes_ForTesting(configs);
 }

 ///////////////////////////////////////////////////////////////////////////////

 void GrContext::purgeAllUnlockedResources() {
     fResourceCache->purgeAllUnlocked();
 }

 void GrContext::resetGpuStats() const {
 #if GR_GPU_STATS
     fGpu->stats()->reset();
 #endif
 }

 void GrContext::dumpCacheStats(SkString* out) const {
 #if GR_CACHE_STATS
     fResourceCache->dumpStats(out);
 #endif
 }

 void GrContext::dumpCacheStatsKeyValuePairs(SkTArray<SkString>* keys,
                                             SkTArray<double>* values) const {
 #if GR_CACHE_STATS
     fResourceCache->dumpStatsKeyValuePairs(keys, values);
 #endif
 }

 void GrContext::printCacheStats() const {
     SkString out;
     this->dumpCacheStats(&out);
     SkDebugf("%s", out.c_str());
 }

 void GrContext::dumpGpuStats(SkString* out) const {
 #if GR_GPU_STATS
     return fGpu->stats()->dump(out);
 #endif
 }

 void GrContext::dumpGpuStatsKeyValuePairs(SkTArray<SkString>* keys,
                                           SkTArray<double>* values) const {
 #if GR_GPU_STATS
     return fGpu->stats()->dumpKeyValuePairs(keys, values);
 #endif
 }

 void GrContext::printGpuStats() const {
     SkString out;
     this->dumpGpuStats(&out);
     SkDebugf("%s", out.c_str());
 }

 sk_sp<SkImage> GrContext::getFontAtlasImage_ForTesting(GrMaskFormat format) {
     GrAtlasGlyphCache* cache = this->getAtlasGlyphCache();

     sk_sp<GrTextureProxy> proxy = cache->getProxy(format);
     if (!proxy) {
         return nullptr;
     }

     GrTexture* tex = proxy->instantiate(this->textureProvider());
     if (!tex) {
         return nullptr;
     }

     // MDB TODO: add proxy-backed SkImage_Gpu's
     sk_sp<SkImage> image(new SkImage_Gpu(tex->width(), tex->height(),
                                          kNeedNewImageUniqueID, kPremul_SkAlphaType,
                                          sk_ref_sp(tex), nullptr, SkBudgeted::kNo));
     return image;
 }

 #if GR_GPU_STATS
 void GrGpu::Stats::dump(SkString* out) {
     out->appendf("Render Target Binds: %d\n", fRenderTargetBinds);
     out->appendf("Shader Compilations: %d\n", fShaderCompilations);
     out->appendf("Textures Created: %d\n", fTextureCreates);
     out->appendf("Texture Uploads: %d\n", fTextureUploads);
     out->appendf("Transfers to Texture: %d\n", fTransfersToTexture);
     out->appendf("Stencil Buffer Creates: %d\n", fStencilAttachmentCreates);
     out->appendf("Number of draws: %d\n", fNumDraws);
 }

 void GrGpu::Stats::dumpKeyValuePairs(SkTArray<SkString>* keys, SkTArray<double>* values) {
     keys->push_back(SkString("render_target_binds")); values->push_back(fRenderTargetBinds);
     keys->push_back(SkString("shader_compilations")); values->push_back(fShaderCompilations);
     keys->push_back(SkString("texture_uploads")); values->push_back(fTextureUploads);
     keys->push_back(SkString("number_of_draws")); values->push_back(fNumDraws);
     keys->push_back(SkString("number_of_failed_draws")); values->push_back(fNumFailedDraws);
 }

 #endif

 #if GR_CACHE_STATS
 void GrResourceCache::getStats(Stats* stats) const {
     stats->reset();

     stats->fTotal = this->getResourceCount();
     stats->fNumNonPurgeable = fNonpurgeableResources.count();
     stats->fNumPurgeable = fPurgeableQueue.count();

     for (int i = 0; i < fNonpurgeableResources.count(); ++i) {
         stats->update(fNonpurgeableResources[i]);
     }
     for (int i = 0; i < fPurgeableQueue.count(); ++i) {
         stats->update(fPurgeableQueue.at(i));
     }
 }

 void GrResourceCache::dumpStats(SkString* out) const {
     this->validate();

     Stats stats;

     this->getStats(&stats);

     float countUtilization = (100.f * fBudgetedCount) / fMaxCount;
     float byteUtilization = (100.f * fBudgetedBytes) / fMaxBytes;

     out->appendf("Budget: %d items %d bytes\n", fMaxCount, (int)fMaxBytes);
     out->appendf("\t\tEntry Count: current %d"
                  " (%d budgeted, %d wrapped, %d locked, %d scratch %.2g%% full), high %d\n",
                  stats.fTotal, fBudgetedCount, stats.fWrapped, stats.fNumNonPurgeable,
                  stats.fScratch, countUtilization, fHighWaterCount);
     out->appendf("\t\tEntry Bytes: current %d (budgeted %d, %.2g%% full, %d unbudgeted) high %d\n",
                  SkToInt(fBytes), SkToInt(fBudgetedBytes), byteUtilization,
                  SkToInt(stats.fUnbudgetedSize), SkToInt(fHighWaterBytes));
 }

 void GrResourceCache::dumpStatsKeyValuePairs(SkTArray<SkString>* keys,
                                              SkTArray<double>* values) const {
     this->validate();

     Stats stats;
     this->getStats(&stats);

     keys->push_back(SkString("gpu_cache_purgable_entries")); values->push_back(stats.fNumPurgeable);
 }

 #endif

 ///////////////////////////////////////////////////////////////////////////////

 void GrResourceCache::changeTimestamp(uint32_t newTimestamp) { fTimestamp = newTimestamp; }

 #ifdef SK_DEBUG
 int GrResourceCache::countUniqueKeysWithTag(const char* tag) const {
     int count = 0;
     UniqueHash::ConstIter iter(&fUniqueHash);
     while (!iter.done()) {
         if (0 == strcmp(tag, (*iter).getUniqueKey().tag())) {
             ++count;
         }
         ++iter;
     }
     return count;
 }
 #endif

 ///////////////////////////////////////////////////////////////////////////////

 #define ASSERT_SINGLE_OWNER \
     SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(fRenderTargetContext->fSingleOwner);)
 #define RETURN_IF_ABANDONED if (fRenderTargetContext->drawingManager()->wasAbandoned()) { return; }

 void GrRenderTargetContextPriv::testingOnly_addDrawOp(GrPaint&& paint,
                                                       GrAAType aaType,
                                                       std::unique_ptr<GrDrawOp>
                                                               op,
                                                       const GrUserStencilSettings* uss,
                                                       bool snapToCenters) {
     ASSERT_SINGLE_OWNER
     RETURN_IF_ABANDONED
     SkDEBUGCODE(fRenderTargetContext->validate();)
     GR_AUDIT_TRAIL_AUTO_FRAME(fRenderTargetContext->fAuditTrail,
                               "GrRenderTargetContext::testingOnly_addDrawOp");

     GrPipelineBuilder pipelineBuilder(std::move(paint), aaType);
     if (uss) {
         pipelineBuilder.setUserStencil(uss);
     }
     pipelineBuilder.setSnapVerticesToPixelCenters(snapToCenters);

     fRenderTargetContext->getOpList()->addDrawOp(pipelineBuilder, fRenderTargetContext, GrNoClip(),
                                                  std::move(op));
 }

 #undef ASSERT_SINGLE_OWNER
 #undef RETURN_IF_ABANDONED

 ///////////////////////////////////////////////////////////////////////////////

 GrRenderTarget::Flags GrRenderTargetProxy::testingOnly_getFlags() const {
     return fRenderTargetFlags;
 }

 ///////////////////////////////////////////////////////////////////////////////
 // Code for the mock context. It's built on a mock GrGpu class that does nothing.
 ////

 #include "GrGpu.h"

 class GrPipeline;

 class MockCaps : public GrCaps {
 public:
     explicit MockCaps(const GrContextOptions& options) : INHERITED(options) {}
     bool isConfigTexturable(GrPixelConfig config) const override { return false; }
     bool isConfigRenderable(GrPixelConfig config, bool withMSAA) const override { return false; }
     bool canConfigBeImageStorage(GrPixelConfig) const override { return false; }

 private:
     typedef GrCaps INHERITED;
 };

 class MockGpu : public GrGpu {
 public:
     MockGpu(GrContext* context, const GrContextOptions& options) : INHERITED(context) {
         fCaps.reset(new MockCaps(options));
     }
     ~MockGpu() override {}

     bool onGetReadPixelsInfo(GrSurface* srcSurface, int readWidth, int readHeight, size_t rowBytes,
                              GrPixelConfig readConfig, DrawPreference*,
                              ReadPixelTempDrawInfo*) override { return false; }

     bool onGetWritePixelsInfo(GrSurface* dstSurface, int width, int height,
                               GrPixelConfig srcConfig, DrawPreference*,
                               WritePixelTempDrawInfo*) override { return false; }

     bool onCopySurface(GrSurface* dst,
                        GrSurface* src,
                        const SkIRect& srcRect,
                        const SkIPoint& dstPoint) override { return false; }

     void onQueryMultisampleSpecs(GrRenderTarget* rt, const GrStencilSettings&,
                                  int* effectiveSampleCnt, SamplePattern*) override {
         *effectiveSampleCnt = rt->desc().fSampleCnt;
     }

     bool initDescForDstCopy(const GrRenderTarget* src, GrSurfaceDesc* desc, bool* rectsMustMatch,
                             bool* disallowSubrect) const override {
         return false;
     }

     GrGpuCommandBuffer* createCommandBuffer(const GrGpuCommandBuffer::LoadAndStoreInfo&,
                                             const GrGpuCommandBuffer::LoadAndStoreInfo&) override {
         return nullptr;
     }

     void drawDebugWireRect(GrRenderTarget*, const SkIRect&, GrColor) override {}

     GrFence SK_WARN_UNUSED_RESULT insertFence() override { return 0; }
     bool waitFence(GrFence, uint64_t) override { return true; }
     void deleteFence(GrFence) const override {}
     void flush() override {}

     sk_sp<GrSemaphore> SK_WARN_UNUSED_RESULT makeSemaphore() override { return nullptr; }
     void insertSemaphore(sk_sp<GrSemaphore> semaphore) override {}
     void waitSemaphore(sk_sp<GrSemaphore> semaphore) override {}

 private:
     void onResetContext(uint32_t resetBits) override {}

     void xferBarrier(GrRenderTarget*, GrXferBarrierType) override {}

     GrTexture* onCreateTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted,
                                const SkTArray<GrMipLevel>& texels) override {
         return nullptr;
     }

     GrTexture* onCreateCompressedTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted,
                                          const SkTArray<GrMipLevel>& texels) override {
         return nullptr;
     }

     sk_sp<GrTexture> onWrapBackendTexture(const GrBackendTextureDesc&, GrWrapOwnership) override {
         return nullptr;
     }

     sk_sp<GrRenderTarget> onWrapBackendRenderTarget(const GrBackendRenderTargetDesc&,
                                                     GrWrapOwnership) override {
         return nullptr;
     }

     sk_sp<GrRenderTarget> onWrapBackendTextureAsRenderTarget(const GrBackendTextureDesc&) override {
         return nullptr;
     }

     GrBuffer* onCreateBuffer(size_t, GrBufferType, GrAccessPattern, const void*) override {
         return nullptr;
     }

     gr_instanced::InstancedRendering* onCreateInstancedRendering() override { return nullptr; }

     bool onReadPixels(GrSurface* surface,
                       int left, int top, int width, int height,
                       GrPixelConfig,
                       void* buffer,
                       size_t rowBytes) override {
         return false;
     }

     bool onWritePixels(GrSurface* surface,
                        int left, int top, int width, int height,
                        GrPixelConfig config, const SkTArray<GrMipLevel>& texels) override {
         return false;
     }

     bool onTransferPixels(GrSurface* surface,
                           int left, int top, int width, int height,
                           GrPixelConfig config, GrBuffer* transferBuffer,
                           size_t offset, size_t rowBytes) override {
         return false;
     }

     void onResolveRenderTarget(GrRenderTarget* target) override { return; }

     GrStencilAttachment* createStencilAttachmentForRenderTarget(const GrRenderTarget*,
                                                                 int width,
                                                                 int height) override {
         return nullptr;
     }

     void clearStencil(GrRenderTarget* target) override  {}

     GrBackendObject createTestingOnlyBackendTexture(void* pixels, int w, int h,
                                                     GrPixelConfig config, bool isRT) override {
         return 0;
     }
     bool isTestingOnlyBackendTexture(GrBackendObject ) const override { return false; }
     void deleteTestingOnlyBackendTexture(GrBackendObject, bool abandonTexture) override {}

     typedef GrGpu INHERITED;
 };

 GrContext* GrContext::CreateMockContext() {
     GrContext* context = new GrContext;

     context->initMockContext();
     return context;
 }

 void GrContext::initMockContext() {
     GrContextOptions options;
     options.fBufferMapThreshold = 0;
     SkASSERT(nullptr == fGpu);
     fGpu = new MockGpu(this, options);
     SkASSERT(fGpu);
     this->initCommon(options);

     // We delete these because we want to test the cache starting with zero resources. Also, none of
     // these objects are required for any of tests that use this context. TODO: make stop allocating
     // resources in the buffer pools.
     fDrawingManager->abandon();
 }
	/*
	* Copyright 2013 Google Inc.
	*
	* Use of this source code is governed by a BSD-style license that can be
	* found in the LICENSE file.
	*/

	#include "GrTest.h"

	#include "GrContextOptions.h"
	#include "GrDrawOpAtlas.h"
	#include "GrDrawingManager.h"
	#include "GrGpuResourceCacheAccess.h"
	#include "GrPipelineBuilder.h"
	#include "GrRenderTargetContextPriv.h"
	#include "GrRenderTargetProxy.h"
	#include "GrResourceCache.h"
	#include "GrSemaphore.h"

	#include "SkGrPriv.h"
	#include "SkImage_Gpu.h"
	#include "SkMathPriv.h"
	#include "SkString.h"

	#include "text/GrAtlasGlyphCache.h"
	#include "text/GrTextBlobCache.h"

	namespace GrTest {
	void SetupAlwaysEvictAtlas(GrContext* context) {
	// These sizes were selected because they allow each atlas to hold a single plot and will thus
	// stress the atlas
	int dim = GrDrawOpAtlas::kGlyphMaxDim;
	GrDrawOpAtlasConfig configs[3];
	configs[kA8_GrMaskFormat].fWidth = dim;
	configs[kA8_GrMaskFormat].fHeight = dim;
	configs[kA8_GrMaskFormat].fLog2Width = SkNextLog2(dim);
	configs[kA8_GrMaskFormat].fLog2Height = SkNextLog2(dim);
	configs[kA8_GrMaskFormat].fPlotWidth = dim;
	configs[kA8_GrMaskFormat].fPlotHeight = dim;

	configs[kA565_GrMaskFormat].fWidth = dim;
	configs[kA565_GrMaskFormat].fHeight = dim;
	configs[kA565_GrMaskFormat].fLog2Width = SkNextLog2(dim);
	configs[kA565_GrMaskFormat].fLog2Height = SkNextLog2(dim);
	configs[kA565_GrMaskFormat].fPlotWidth = dim;
	configs[kA565_GrMaskFormat].fPlotHeight = dim;

	configs[kARGB_GrMaskFormat].fWidth = dim;
	configs[kARGB_GrMaskFormat].fHeight = dim;
	configs[kARGB_GrMaskFormat].fLog2Width = SkNextLog2(dim);
	configs[kARGB_GrMaskFormat].fLog2Height = SkNextLog2(dim);
	configs[kARGB_GrMaskFormat].fPlotWidth = dim;
	configs[kARGB_GrMaskFormat].fPlotHeight = dim;

	context->setTextContextAtlasSizes_ForTesting(configs);
	}
	};

	bool GrSurfaceProxy::isWrapped_ForTesting() const {
	return SkToBool(fTarget);
	}

	bool GrRenderTargetContext::isWrapped_ForTesting() const {
	return fRenderTargetProxy->isWrapped_ForTesting();
	}

	void GrContext::setTextBlobCacheLimit_ForTesting(size_t bytes) {
	fTextBlobCache->setBudget(bytes);
	}

	void GrContext::setTextContextAtlasSizes_ForTesting(const GrDrawOpAtlasConfig* configs) {
	fAtlasGlyphCache->setAtlasSizes_ForTesting(configs);
	}

	///////////////////////////////////////////////////////////////////////////////

	void GrContext::purgeAllUnlockedResources() {
	fResourceCache->purgeAllUnlocked();
	}

	void GrContext::resetGpuStats() const {
	#if GR_GPU_STATS
	fGpu->stats()->reset();
	#endif
	}

	void GrContext::dumpCacheStats(SkString* out) const {
	#if GR_CACHE_STATS
	fResourceCache->dumpStats(out);
	#endif
	}

	void GrContext::dumpCacheStatsKeyValuePairs(SkTArray<SkString>* keys,
	SkTArray<double>* values) const {
	#if GR_CACHE_STATS
	fResourceCache->dumpStatsKeyValuePairs(keys, values);
	#endif
	}

	void GrContext::printCacheStats() const {
	SkString out;
	this->dumpCacheStats(&out);
	SkDebugf("%s", out.c_str());
	}

	void GrContext::dumpGpuStats(SkString* out) const {
	#if GR_GPU_STATS
	return fGpu->stats()->dump(out);
	#endif
	}

	void GrContext::dumpGpuStatsKeyValuePairs(SkTArray<SkString>* keys,
	SkTArray<double>* values) const {
	#if GR_GPU_STATS
	return fGpu->stats()->dumpKeyValuePairs(keys, values);
	#endif
	}

	void GrContext::printGpuStats() const {
	SkString out;
	this->dumpGpuStats(&out);
	SkDebugf("%s", out.c_str());
	}

	sk_sp<SkImage> GrContext::getFontAtlasImage_ForTesting(GrMaskFormat format) {
	GrAtlasGlyphCache* cache = this->getAtlasGlyphCache();

	sk_sp<GrTextureProxy> proxy = cache->getProxy(format);
	if (!proxy) {
	return nullptr;
	}

	GrTexture* tex = proxy->instantiate(this->textureProvider());
	if (!tex) {
	return nullptr;
	}

	// MDB TODO: add proxy-backed SkImage_Gpu's
	sk_sp<SkImage> image(new SkImage_Gpu(tex->width(), tex->height(),
	kNeedNewImageUniqueID, kPremul_SkAlphaType,
	sk_ref_sp(tex), nullptr, SkBudgeted::kNo));
	return image;
	}

	#if GR_GPU_STATS
	void GrGpu::Stats::dump(SkString* out) {
	out->appendf("Render Target Binds: %d\n", fRenderTargetBinds);
	out->appendf("Shader Compilations: %d\n", fShaderCompilations);
	out->appendf("Textures Created: %d\n", fTextureCreates);
	out->appendf("Texture Uploads: %d\n", fTextureUploads);
	out->appendf("Transfers to Texture: %d\n", fTransfersToTexture);
	out->appendf("Stencil Buffer Creates: %d\n", fStencilAttachmentCreates);
	out->appendf("Number of draws: %d\n", fNumDraws);
	}

	void GrGpu::Stats::dumpKeyValuePairs(SkTArray<SkString>* keys, SkTArray<double>* values) {
	keys->push_back(SkString("render_target_binds")); values->push_back(fRenderTargetBinds);
	keys->push_back(SkString("shader_compilations")); values->push_back(fShaderCompilations);
	keys->push_back(SkString("texture_uploads")); values->push_back(fTextureUploads);
	keys->push_back(SkString("number_of_draws")); values->push_back(fNumDraws);
	keys->push_back(SkString("number_of_failed_draws")); values->push_back(fNumFailedDraws);
	}

	#endif

	#if GR_CACHE_STATS
	void GrResourceCache::getStats(Stats* stats) const {
	stats->reset();

	stats->fTotal = this->getResourceCount();
	stats->fNumNonPurgeable = fNonpurgeableResources.count();
	stats->fNumPurgeable = fPurgeableQueue.count();

	for (int i = 0; i < fNonpurgeableResources.count(); ++i) {
	stats->update(fNonpurgeableResources[i]);
	}
	for (int i = 0; i < fPurgeableQueue.count(); ++i) {
	stats->update(fPurgeableQueue.at(i));
	}
	}

	void GrResourceCache::dumpStats(SkString* out) const {
	this->validate();

	Stats stats;

	this->getStats(&stats);

	float countUtilization = (100.f * fBudgetedCount) / fMaxCount;
	float byteUtilization = (100.f * fBudgetedBytes) / fMaxBytes;

	out->appendf("Budget: %d items %d bytes\n", fMaxCount, (int)fMaxBytes);
	out->appendf("\t\tEntry Count: current %d"
	" (%d budgeted, %d wrapped, %d locked, %d scratch %.2g%% full), high %d\n",
	stats.fTotal, fBudgetedCount, stats.fWrapped, stats.fNumNonPurgeable,
	stats.fScratch, countUtilization, fHighWaterCount);
	out->appendf("\t\tEntry Bytes: current %d (budgeted %d, %.2g%% full, %d unbudgeted) high %d\n",
	SkToInt(fBytes), SkToInt(fBudgetedBytes), byteUtilization,
	SkToInt(stats.fUnbudgetedSize), SkToInt(fHighWaterBytes));
	}

	void GrResourceCache::dumpStatsKeyValuePairs(SkTArray<SkString>* keys,
	SkTArray<double>* values) const {
	this->validate();

	Stats stats;
	this->getStats(&stats);

	keys->push_back(SkString("gpu_cache_purgable_entries")); values->push_back(stats.fNumPurgeable);
	}

	#endif

	///////////////////////////////////////////////////////////////////////////////

	void GrResourceCache::changeTimestamp(uint32_t newTimestamp) { fTimestamp = newTimestamp; }

	#ifdef SK_DEBUG
	int GrResourceCache::countUniqueKeysWithTag(const char* tag) const {
	int count = 0;
	UniqueHash::ConstIter iter(&fUniqueHash);
	while (!iter.done()) {
	if (0 == strcmp(tag, (*iter).getUniqueKey().tag())) {
	++count;
	}
	++iter;
	}
	return count;
	}
	#endif

	///////////////////////////////////////////////////////////////////////////////

	#define ASSERT_SINGLE_OWNER \
	SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(fRenderTargetContext->fSingleOwner);)
	#define RETURN_IF_ABANDONED if (fRenderTargetContext->drawingManager()->wasAbandoned()) { return; }

	void GrRenderTargetContextPriv::testingOnly_addDrawOp(GrPaint&& paint,
	GrAAType aaType,
	std::unique_ptr<GrDrawOp>
	op,
	const GrUserStencilSettings* uss,
	bool snapToCenters) {
	ASSERT_SINGLE_OWNER
	RETURN_IF_ABANDONED
	SkDEBUGCODE(fRenderTargetContext->validate();)
	GR_AUDIT_TRAIL_AUTO_FRAME(fRenderTargetContext->fAuditTrail,
	"GrRenderTargetContext::testingOnly_addDrawOp");

	GrPipelineBuilder pipelineBuilder(std::move(paint), aaType);
	if (uss) {
	pipelineBuilder.setUserStencil(uss);
	}
	pipelineBuilder.setSnapVerticesToPixelCenters(snapToCenters);

	fRenderTargetContext->getOpList()->addDrawOp(pipelineBuilder, fRenderTargetContext, GrNoClip(),
	std::move(op));
	}

	#undef ASSERT_SINGLE_OWNER
	#undef RETURN_IF_ABANDONED

	///////////////////////////////////////////////////////////////////////////////

	GrRenderTarget::Flags GrRenderTargetProxy::testingOnly_getFlags() const {
	return fRenderTargetFlags;
	}

	///////////////////////////////////////////////////////////////////////////////
	// Code for the mock context. It's built on a mock GrGpu class that does nothing.
	////

	#include "GrGpu.h"

	class GrPipeline;

	class MockCaps : public GrCaps {
	public:
	explicit MockCaps(const GrContextOptions& options) : INHERITED(options) {}
	bool isConfigTexturable(GrPixelConfig config) const override { return false; }
	bool isConfigRenderable(GrPixelConfig config, bool withMSAA) const override { return false; }
	bool canConfigBeImageStorage(GrPixelConfig) const override { return false; }

	private:
	typedef GrCaps INHERITED;
	};

	class MockGpu : public GrGpu {
	public:
	MockGpu(GrContext* context, const GrContextOptions& options) : INHERITED(context) {
	fCaps.reset(new MockCaps(options));
	}
	~MockGpu() override {}

	bool onGetReadPixelsInfo(GrSurface* srcSurface, int readWidth, int readHeight, size_t rowBytes,
	GrPixelConfig readConfig, DrawPreference*,
	ReadPixelTempDrawInfo*) override { return false; }

	bool onGetWritePixelsInfo(GrSurface* dstSurface, int width, int height,
	GrPixelConfig srcConfig, DrawPreference*,
	WritePixelTempDrawInfo*) override { return false; }

	bool onCopySurface(GrSurface* dst,
	GrSurface* src,
	const SkIRect& srcRect,
	const SkIPoint& dstPoint) override { return false; }

	void onQueryMultisampleSpecs(GrRenderTarget* rt, const GrStencilSettings&,
	int* effectiveSampleCnt, SamplePattern*) override {
	*effectiveSampleCnt = rt->desc().fSampleCnt;
	}

	bool initDescForDstCopy(const GrRenderTarget* src, GrSurfaceDesc* desc, bool* rectsMustMatch,
	bool* disallowSubrect) const override {
	return false;
	}

	GrGpuCommandBuffer* createCommandBuffer(const GrGpuCommandBuffer::LoadAndStoreInfo&,
	const GrGpuCommandBuffer::LoadAndStoreInfo&) override {
	return nullptr;
	}

	void drawDebugWireRect(GrRenderTarget*, const SkIRect&, GrColor) override {}

	GrFence SK_WARN_UNUSED_RESULT insertFence() override { return 0; }
	bool waitFence(GrFence, uint64_t) override { return true; }
	void deleteFence(GrFence) const override {}
	void flush() override {}

	sk_sp<GrSemaphore> SK_WARN_UNUSED_RESULT makeSemaphore() override { return nullptr; }
	void insertSemaphore(sk_sp<GrSemaphore> semaphore) override {}
	void waitSemaphore(sk_sp<GrSemaphore> semaphore) override {}

	private:
	void onResetContext(uint32_t resetBits) override {}

	void xferBarrier(GrRenderTarget*, GrXferBarrierType) override {}

	GrTexture* onCreateTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted,
	const SkTArray<GrMipLevel>& texels) override {
	return nullptr;
	}

	GrTexture* onCreateCompressedTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted,
	const SkTArray<GrMipLevel>& texels) override {
	return nullptr;
	}

	sk_sp<GrTexture> onWrapBackendTexture(const GrBackendTextureDesc&, GrWrapOwnership) override {
	return nullptr;
	}

	sk_sp<GrRenderTarget> onWrapBackendRenderTarget(const GrBackendRenderTargetDesc&,
	GrWrapOwnership) override {
	return nullptr;
	}

	sk_sp<GrRenderTarget> onWrapBackendTextureAsRenderTarget(const GrBackendTextureDesc&) override {
	return nullptr;
	}

	GrBuffer* onCreateBuffer(size_t, GrBufferType, GrAccessPattern, const void*) override {
	return nullptr;
	}

	gr_instanced::InstancedRendering* onCreateInstancedRendering() override { return nullptr; }

	bool onReadPixels(GrSurface* surface,
	int left, int top, int width, int height,
	GrPixelConfig,
	void* buffer,
	size_t rowBytes) override {
	return false;
	}

	bool onWritePixels(GrSurface* surface,
	int left, int top, int width, int height,
	GrPixelConfig config, const SkTArray<GrMipLevel>& texels) override {
	return false;
	}

	bool onTransferPixels(GrSurface* surface,
	int left, int top, int width, int height,
	GrPixelConfig config, GrBuffer* transferBuffer,
	size_t offset, size_t rowBytes) override {
	return false;
	}

	void onResolveRenderTarget(GrRenderTarget* target) override { return; }

	GrStencilAttachment* createStencilAttachmentForRenderTarget(const GrRenderTarget*,
	int width,
	int height) override {
	return nullptr;
	}

	void clearStencil(GrRenderTarget* target) override {}

	GrBackendObject createTestingOnlyBackendTexture(void* pixels, int w, int h,
	GrPixelConfig config, bool isRT) override {
	return 0;
	}
	bool isTestingOnlyBackendTexture(GrBackendObject ) const override { return false; }
	void deleteTestingOnlyBackendTexture(GrBackendObject, bool abandonTexture) override {}

	typedef GrGpu INHERITED;
	};

	GrContext* GrContext::CreateMockContext() {
	GrContext* context = new GrContext;

	context->initMockContext();
	return context;
	}

	void GrContext::initMockContext() {
	GrContextOptions options;
	options.fBufferMapThreshold = 0;
	SkASSERT(nullptr == fGpu);
	fGpu = new MockGpu(this, options);
	SkASSERT(fGpu);
	this->initCommon(options);

	// We delete these because we want to test the cache starting with zero resources. Also, none of
	// these objects are required for any of tests that use this context. TODO: make stop allocating
	// resources in the buffer pools.
	fDrawingManager->abandon();
	}