/*
|
* Copyright 2014 Google Inc.
|
*
|
* Use of this source code is governed by a BSD-style license that can be
|
* found in the LICENSE file.
|
*/
|
|
#ifndef SkBitmapCache_DEFINED
|
#define SkBitmapCache_DEFINED
|
|
#include "SkRect.h"
|
#include <memory>
|
|
class SkBitmap;
|
class SkBitmapProvider;
|
class SkImage;
|
struct SkImageInfo;
|
class SkMipMap;
|
class SkPixmap;
|
class SkResourceCache;
|
|
uint64_t SkMakeResourceCacheSharedIDForBitmap(uint32_t bitmapGenID);
|
|
void SkNotifyBitmapGenIDIsStale(uint32_t bitmapGenID);
|
|
struct SkBitmapCacheDesc {
|
uint32_t fImageID; // != 0
|
SkIRect fSubset; // always set to a valid rect (entire or subset)
|
|
void validate() const {
|
SkASSERT(fImageID);
|
SkASSERT(fSubset.fLeft >= 0 && fSubset.fTop >= 0);
|
SkASSERT(fSubset.width() > 0 && fSubset.height() > 0);
|
}
|
|
static SkBitmapCacheDesc Make(const SkImage*);
|
static SkBitmapCacheDesc Make(uint32_t genID, const SkIRect& subset);
|
};
|
|
class SkBitmapCache {
|
public:
|
/**
|
* Search based on the desc. If found, returns true and
|
* result will be set to the matching bitmap with its pixels already locked.
|
*/
|
static bool Find(const SkBitmapCacheDesc&, SkBitmap* result);
|
|
class Rec;
|
struct RecDeleter { void operator()(Rec* r) { PrivateDeleteRec(r); } };
|
typedef std::unique_ptr<Rec, RecDeleter> RecPtr;
|
|
static RecPtr Alloc(const SkBitmapCacheDesc&, const SkImageInfo&, SkPixmap*);
|
static void Add(RecPtr, SkBitmap*);
|
|
private:
|
static void PrivateDeleteRec(Rec*);
|
};
|
|
class SkMipMapCache {
|
public:
|
static const SkMipMap* FindAndRef(const SkBitmapCacheDesc&,
|
SkResourceCache* localCache = nullptr);
|
static const SkMipMap* AddAndRef(const SkBitmapProvider&,
|
SkResourceCache* localCache = nullptr);
|
};
|
|
#endif
|
