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* Copyright 2020 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef GrSmallPathAtlasMgr_DEFINED
#define GrSmallPathAtlasMgr_DEFINED
#include "src/core/SkTDynamicHash.h"
#include "src/core/SkTInternalLList.h"
#include "src/gpu/GrDrawOpAtlas.h"
#include "src/gpu/GrOnFlushResourceProvider.h"
class GrSmallPathShapeData;
class GrSmallPathShapeDataKey;
class GrStyledShape;
* This class manages the small path renderer's atlas. It solely operates at flush time. Thus
* the small path renderer will generate ops at record time but the location of the ops' source
* data and even the number of proxies to be used will not be determined until the recorded
* DAGs/DDLs are (re)played.
* TODO: investigate fusing this class and the GrAtlasManager.
class GrSmallPathAtlasMgr : public GrOnFlushCallbackObject,
public GrDrawOpAtlas::EvictionCallback,
public GrDrawOpAtlas::GenerationCounter {
~GrSmallPathAtlasMgr() override;
void reset();
bool initAtlas(GrProxyProvider*, const GrCaps*);
GrSmallPathShapeData* findOrCreate(const GrStyledShape&, int desiredDimension);
GrSmallPathShapeData* findOrCreate(const GrStyledShape&, const SkMatrix& ctm);
GrDrawOpAtlas::ErrorCode addToAtlas(GrResourceProvider*,
int width, int height, const void* image,
void setUseToken(GrSmallPathShapeData*, GrDeferredUploadToken);
// GrOnFlushCallbackObject overrides
void preFlush(GrOnFlushResourceProvider* onFlushRP,
SkSpan<const uint32_t> /* taskIDs */) override {
if (fAtlas) {
void postFlush(GrDeferredUploadToken startTokenForNextFlush,
SkSpan<const uint32_t> /* taskIDs */) override {
if (fAtlas) {
// This object has the same lifetime as the GrContext so we want it to survive freeGpuResources
// calls
bool retainOnFreeGpuResources() override { return true; }
const GrSurfaceProxyView* getViews(int* numActiveProxies) {
*numActiveProxies = fAtlas->numActivePages();
return fAtlas->getViews();
void deleteCacheEntry(GrSmallPathShapeData*);
GrSmallPathShapeData* findOrCreate(const GrSmallPathShapeDataKey&);
void evict(GrDrawOpAtlas::PlotLocator) override;
using ShapeCache = SkTDynamicHash<GrSmallPathShapeData, GrSmallPathShapeDataKey>;
typedef SkTInternalLList<GrSmallPathShapeData> ShapeDataList;
std::unique_ptr<GrDrawOpAtlas> fAtlas;
ShapeCache fShapeCache;
ShapeDataList fShapeList;
#endif // GrSmallPathAtlasMgr_DEFINED