GrResourceCache2 manages scratch texture.

src/gpu/GrGpuResource.cpp

 
 /*
  * 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 "GrGpuResource.h"
 #include "GrResourceCache2.h"
 #include "GrGpu.h"
 
-GrIORef::~GrIORef() {
+template<typename D> GrIORef<D>::~GrIORef() {
     SkASSERT(0 == fRefCnt);
     SkASSERT(0 == fPendingReads);
     SkASSERT(0 == fPendingWrites);
     // Set to invalid values.
     SkDEBUGCODE(fRefCnt = fPendingReads = fPendingWrites = -10;)
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 static inline GrResourceCache2* get_resource_cache2(GrGpu* gpu) {
     SkASSERT(gpu);
     SkASSERT(gpu->getContext());
     SkASSERT(gpu->getContext()->getResourceCache2());
     return gpu->getContext()->getResourceCache2();
 }
 
+static inline GrResourceCache* get_resource_cache(GrGpu* gpu) {
+    SkASSERT(gpu);
+    SkASSERT(gpu->getContext());
+    SkASSERT(gpu->getContext()->getResourceCache());
+    return gpu->getContext()->getResourceCache();
+}
+
 GrGpuResource::GrGpuResource(GrGpu* gpu, bool isWrapped)
     : fGpu(gpu)
     , fCacheEntry(NULL)
     , fUniqueID(CreateUniqueID())
     , fScratchKey(GrResourceKey::NullScratchKey()) {
     if (isWrapped) {
         fFlags = kWrapped_FlagBit;
     } else {
         fFlags = 0;
     }
@@ skipping 33 matching lines @@
 }
 
 GrContext* GrGpuResource::getContext() {
     if (fGpu) {
         return fGpu->getContext();
     } else {
         return NULL;
     }
 }
 
+void GrGpuResource::notifyIsPurgable() const {
+    if (fCacheEntry && !this->wasDestroyed()) {
+        get_resource_cache(fGpu)->notifyPurgable(this);
+    }
+}
+
 void GrGpuResource::setScratchKey(const GrResourceKey& scratchKey) {
     SkASSERT(fScratchKey.isNullScratch());
     SkASSERT(scratchKey.isScratch());
     SkASSERT(!scratchKey.isNullScratch());
     fScratchKey = scratchKey;
 }
 
 uint32_t GrGpuResource::CreateUniqueID() {
     static int32_t gUniqueID = SK_InvalidUniqueID;
     uint32_t id;
     do {
         id = static_cast<uint32_t>(sk_atomic_inc(&gUniqueID) + 1);
     } while (id == SK_InvalidUniqueID);
     return id;
 }