void SkImageRefPool::setRAMUsed(size_t limit) {
SkImageRef* ref = fTail;
while (NULL != ref && fRAMUsed > limit) {
// only purge it if its pixels are unlocked
if (0 == ref->getLockCount() && 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::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 locks=%d %s\n", ref->fBitmap.width(),
ref->fBitmap.height(), ref->fBitmap.config(),
ref->ramUsed(), (int)ref->fStream->getLength(),
ref->getLockCount(), ref->getURI());
ref = ref->fNext;
}
#endif
}