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Viewing changes to third_party/skia/src/images/SkImageRef_GlobalPool.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Stefan Lesicnik
  • Date: 2009-04-30 19:15:25 UTC
  • Revision ID: james.westby@ubuntu.com-20090430191525-0790sb5wzg8ou0xb
Tags: upstream-0.5.21.0~svn3334+dfsg
Import upstream version 0.5.21.0~svn3334+dfsg

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third_party/skia/src/images/SkImageRef_GlobalPool.cpp
 
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#include "SkImageRef_GlobalPool.h"
 
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#include "SkImageRefPool.h"
 
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#include "SkThread.h"
 
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extern SkMutex gImageRefMutex;
 
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static SkImageRefPool gGlobalImageRefPool;
 
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SkImageRef_GlobalPool::SkImageRef_GlobalPool(SkStream* stream,
 
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                                             SkBitmap::Config config,
 
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                                             int sampleSize)
 
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        : SkImageRef(stream, config, sampleSize) {
 
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    this->mutex()->acquire();
 
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    gGlobalImageRefPool.addToHead(this);
 
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    this->mutex()->release();
 
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}
 
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SkImageRef_GlobalPool::~SkImageRef_GlobalPool() {
 
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    this->mutex()->acquire();
 
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    gGlobalImageRefPool.detach(this);
 
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    this->mutex()->release();
 
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}
 
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bool SkImageRef_GlobalPool::onDecode(SkImageDecoder* codec, SkStream* stream,
 
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                                     SkBitmap* bitmap, SkBitmap::Config config,
 
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                                     SkImageDecoder::Mode mode) {
 
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    if (!this->INHERITED::onDecode(codec, stream, bitmap, config, mode)) {
 
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        return false;
 
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    }
 
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    if (mode == SkImageDecoder::kDecodePixels_Mode) {
 
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        gGlobalImageRefPool.justAddedPixels(this);
 
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    }
 
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    return true;
 
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}
 
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void SkImageRef_GlobalPool::onUnlockPixels() {
 
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    this->INHERITED::onUnlockPixels();
 
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    gGlobalImageRefPool.canLosePixels(this);
 
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}
 
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SkImageRef_GlobalPool::SkImageRef_GlobalPool(SkFlattenableReadBuffer& buffer)
 
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        : INHERITED(buffer) {
 
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    this->mutex()->acquire();
 
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    gGlobalImageRefPool.addToHead(this);
 
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    this->mutex()->release();
 
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}
 
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SkPixelRef* SkImageRef_GlobalPool::Create(SkFlattenableReadBuffer& buffer) {
 
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    return SkNEW_ARGS(SkImageRef_GlobalPool, (buffer));
 
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}
 
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static SkPixelRef::Registrar::Registrar reg("SkImageRef_GlobalPool",
 
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                                            SkImageRef_GlobalPool::Create);
 
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///////////////////////////////////////////////////////////////////////////////
 
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// global imagerefpool wrappers
 
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size_t SkImageRef_GlobalPool::GetRAMBudget() {
 
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    SkAutoMutexAcquire ac(gImageRefMutex);
 
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    return gGlobalImageRefPool.getRAMBudget();
 
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}
 
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void SkImageRef_GlobalPool::SetRAMBudget(size_t size) {
 
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    SkAutoMutexAcquire ac(gImageRefMutex);
 
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    gGlobalImageRefPool.setRAMBudget(size);
 
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}
 
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size_t SkImageRef_GlobalPool::GetRAMUsed() {
 
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    SkAutoMutexAcquire ac(gImageRefMutex);    
 
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    return gGlobalImageRefPool.getRAMUsed();
 
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}
 
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void SkImageRef_GlobalPool::SetRAMUsed(size_t usage) {
 
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    SkAutoMutexAcquire ac(gImageRefMutex);
 
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    gGlobalImageRefPool.setRAMUsed(usage);
 
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}
 
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void SkImageRef_GlobalPool::DumpPool() {
 
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    SkAutoMutexAcquire ac(gImageRefMutex);
 
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    gGlobalImageRefPool.dump();
 
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}
 
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