* resource's destructor inserting new resources into the cache. If these
* new resources were unlocked before purgeAsNeeded completed it could
* potentially make purgeAsNeeded loop infinitely.
+ *
+ * extraCount and extraBytes are added to the current resource totals to account
+ * for incoming resources (e.g., GrContext is about to add 10MB split between
+ * 10 textures).
*/
-void GrResourceCache::purgeAsNeeded() {
+void GrResourceCache::purgeAsNeeded(int extraCount, size_t extraBytes) {
if (fPurging) {
return;
}
fPurging = true;
- this->internalPurge();
- if ((fEntryCount > fMaxCount || fEntryBytes > fMaxBytes) &&
+ this->internalPurge(extraCount, extraBytes);
+ if (((fEntryCount+extraCount) > fMaxCount ||
+ (fEntryBytes+extraBytes) > fMaxBytes) &&
NULL != fOverbudgetCB) {
// Despite the purge we're still over budget. See if Ganesh can
// release some resources and purge again.
if ((*fOverbudgetCB)(fOverbudgetData)) {
- this->internalPurge();
+ this->internalPurge(extraCount, extraBytes);
}
}
fPurging = false;
}
-void GrResourceCache::internalPurge() {
+void GrResourceCache::internalPurge(int extraCount, size_t extraBytes) {
SkASSERT(fPurging);
bool withinBudget = false;
while (NULL != entry) {
GrAutoResourceCacheValidate atcv(this);
- if (fEntryCount <= fMaxCount && fEntryBytes <= fMaxBytes) {
+ if ((fEntryCount+extraCount) <= fMaxCount &&
+ (fEntryBytes+extraBytes) <= fMaxBytes) {
withinBudget = true;
break;
}
* Allow cache to purge unused resources to obey resource limitations
* Note: this entry point will be hidden (again) once totally ref-driven
* cache maintenance is implemented
+ *
+ * extraCount and extraBytes are added to the current resource allocation
+ * to make sure enough room is available for future additions (e.g,
+ * 10MB across 10 textures is about to be added).
*/
- void purgeAsNeeded();
+ void purgeAsNeeded(int extraCount = 0, size_t extraBytes = 0);
#if GR_DEBUG
void validate() const;
PFOverbudgetCB fOverbudgetCB;
void* fOverbudgetData;
- void internalPurge();
+ void internalPurge(int extraCount, size_t extraBytes);
#if GR_DEBUG
static size_t countBytes(const SkTInternalLList<GrResourceEntry>& list);