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-rw-r--r--src/images/SkImageRefPool.cpp192
1 files changed, 0 insertions, 192 deletions
diff --git a/src/images/SkImageRefPool.cpp b/src/images/SkImageRefPool.cpp
deleted file mode 100644
index 0a3d7bf8cc..0000000000
--- a/src/images/SkImageRefPool.cpp
+++ /dev/null
@@ -1,192 +0,0 @@
-
-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#include "SkImageRefPool.h"
-#include "SkImageRef.h"
-#include "SkThread.h"
-
-SkImageRefPool::SkImageRefPool() {
- fRAMBudget = 0; // means no explicit limit
- fRAMUsed = 0;
- fCount = 0;
- fHead = fTail = NULL;
-}
-
-SkImageRefPool::~SkImageRefPool() {
- // SkASSERT(NULL == fHead);
-}
-
-void SkImageRefPool::setRAMBudget(size_t size) {
- if (fRAMBudget != size) {
- fRAMBudget = size;
- this->purgeIfNeeded();
- }
-}
-
-void SkImageRefPool::justAddedPixels(SkImageRef* ref) {
-#ifdef DUMP_IMAGEREF_LIFECYCLE
- SkDebugf("=== ImagePool: add pixels %s [%d %d %d] bytes=%d heap=%d\n",
- ref->getURI(),
- ref->fBitmap.width(), ref->fBitmap.height(),
- ref->fBitmap.bytesPerPixel(),
- ref->fBitmap.getSize(), (int)fRAMUsed);
-#endif
- fRAMUsed += ref->ramUsed();
- this->purgeIfNeeded();
-}
-
-void SkImageRefPool::canLosePixels(SkImageRef* ref) {
- // the refs near fHead have recently been released (used)
- // if we purge, we purge from the tail
- this->detach(ref);
- this->addToHead(ref);
- this->purgeIfNeeded();
-}
-
-void SkImageRefPool::purgeIfNeeded() {
- // do nothing if we have a zero-budget (i.e. unlimited)
- if (fRAMBudget != 0) {
- this->setRAMUsed(fRAMBudget);
- }
-}
-
-void SkImageRefPool::setRAMUsed(size_t limit) {
- SkImageRef* ref = fTail;
-
- while (NULL != ref && fRAMUsed > limit) {
- // only purge it if its pixels are unlocked
- if (!ref->isLocked() && ref->fBitmap.getPixels()) {
- size_t size = ref->ramUsed();
- SkASSERT(size <= fRAMUsed);
- fRAMUsed -= size;
-
-#ifdef DUMP_IMAGEREF_LIFECYCLE
- SkDebugf("=== ImagePool: purge %s [%d %d %d] bytes=%d heap=%d\n",
- ref->getURI(),
- ref->fBitmap.width(), ref->fBitmap.height(),
- ref->fBitmap.bytesPerPixel(),
- (int)size, (int)fRAMUsed);
-#endif
-
- // remember the bitmap config (don't call reset),
- // just clear the pixel memory
- ref->fBitmap.setPixels(NULL);
- SkASSERT(NULL == ref->fBitmap.getPixels());
- }
- ref = ref->fPrev;
- }
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-void SkImageRefPool::addToHead(SkImageRef* ref) {
- ref->fNext = fHead;
- ref->fPrev = NULL;
-
- if (fHead) {
- SkASSERT(NULL == fHead->fPrev);
- fHead->fPrev = ref;
- }
- fHead = ref;
-
- if (NULL == fTail) {
- fTail = ref;
- }
- fCount += 1;
- SkASSERT(computeCount() == fCount);
-
- fRAMUsed += ref->ramUsed();
-}
-
-void SkImageRefPool::addToTail(SkImageRef* ref) {
- ref->fNext = NULL;
- ref->fPrev = fTail;
-
- if (fTail) {
- SkASSERT(NULL == fTail->fNext);
- fTail->fNext = ref;
- }
- fTail = ref;
-
- if (NULL == fHead) {
- fHead = ref;
- }
- fCount += 1;
- SkASSERT(computeCount() == fCount);
-
- fRAMUsed += ref->ramUsed();
-}
-
-void SkImageRefPool::detach(SkImageRef* ref) {
- SkASSERT(fCount > 0);
-
- if (fHead == ref) {
- fHead = ref->fNext;
- }
- if (fTail == ref) {
- fTail = ref->fPrev;
- }
- if (ref->fPrev) {
- ref->fPrev->fNext = ref->fNext;
- }
- if (ref->fNext) {
- ref->fNext->fPrev = ref->fPrev;
- }
-
- ref->fNext = ref->fPrev = NULL;
-
- fCount -= 1;
- SkASSERT(computeCount() == fCount);
-
- SkASSERT(fRAMUsed >= ref->ramUsed());
- fRAMUsed -= ref->ramUsed();
-}
-
-int SkImageRefPool::computeCount() const {
- SkImageRef* ref = fHead;
- int count = 0;
-
- while (ref != NULL) {
- count += 1;
- ref = ref->fNext;
- }
-
-#ifdef SK_DEBUG
- ref = fTail;
- int count2 = 0;
-
- while (ref != NULL) {
- count2 += 1;
- ref = ref->fPrev;
- }
- SkASSERT(count2 == count);
-#endif
-
- return count;
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-#include "SkStream.h"
-
-void SkImageRefPool::dump() const {
-#if defined(SK_DEBUG) || defined(DUMP_IMAGEREF_LIFECYCLE)
- SkDebugf("ImagePool dump: bugdet: %d used: %d count: %d\n",
- (int)fRAMBudget, (int)fRAMUsed, fCount);
-
- SkImageRef* ref = fHead;
-
- while (ref != NULL) {
- SkDebugf(" [%3d %3d %d] ram=%d data=%d locked=%d %s\n", ref->fBitmap.width(),
- ref->fBitmap.height(), ref->fBitmap.config(),
- ref->ramUsed(), (int)ref->fStream->getLength(),
- ref->isLocked(), ref->getURI());
-
- ref = ref->fNext;
- }
-#endif
-}