blob: 18ebcb2bd57bf8e9dcd2bc062f92eea83b0ebba7 [file] [log] [blame]
* 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 "include/core/SkRect.h"
#include <memory>
class SkBitmap;
class SkImage;
class SkImage_Base;
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(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 {
* 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*);
static void PrivateDeleteRec(Rec*);
class SkMipmapCache {
static const SkMipmap* FindAndRef(const SkBitmapCacheDesc&,
SkResourceCache* localCache = nullptr);
static const SkMipmap* AddAndRef(const SkImage_Base*,
SkResourceCache* localCache = nullptr);