Add GrResourceCache2.

src/gpu/GrContext.cpp

Index: src/gpu/GrContext.cpp
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 091c4a899e401595fe26c4fa7f5053391d02e2cd..b420df2bc806c0b06fcb7aeff9f18ff5e61e0c1c 100755
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -25,6 +25,7 @@
 #include "GrPathRenderer.h"
 #include "GrPathUtils.h"
 #include "GrResourceCache.h"
+#include "GrResourceCache2.h"
 #include "GrSoftwarePathRenderer.h"
 #include "GrStencilBuffer.h"
 #include "GrStencilAndCoverTextContext.h"
@@ -108,6 +109,7 @@ GrContext::GrContext(const Options& opts) : fOptions(opts) {
     fPathRendererChain = NULL;
     fSoftwarePathRenderer = NULL;
     fResourceCache = NULL;
+    fResourceCache2 = NULL;
     fFontCache = NULL;
     fDrawBuffer = NULL;
     fDrawBufferVBAllocPool = NULL;
@@ -133,6 +135,7 @@ bool GrContext::init(GrBackend backend, GrBackendContext backendContext) {
     fResourceCache = SkNEW_ARGS(GrResourceCache, (MAX_RESOURCE_CACHE_COUNT,
                                                   MAX_RESOURCE_CACHE_BYTES));
     fResourceCache->setOverbudgetCallback(OverbudgetCB, this);
+    fResourceCache2 = SkNEW(GrResourceCache2);
 
     fFontCache = SkNEW_ARGS(GrFontCache, (fGpu));
 
@@ -161,10 +164,8 @@ GrContext::~GrContext() {
         (*fCleanUpData[i].fFunc)(this, fCleanUpData[i].fInfo);
     }
 
-    // Since the gpu can hold scratch textures, give it a chance to let go
-    // of them before freeing the texture cache
-    fGpu->purgeResources();
-
+    delete fResourceCache2;
+    fResourceCache2 = NULL;
     delete fResourceCache;
     fResourceCache = NULL;
     delete fFontCache;
@@ -184,7 +185,9 @@ GrContext::~GrContext() {
 void GrContext::abandonContext() {
     // abandon first to so destructors
     // don't try to free the resources in the API.
-    fGpu->abandonResources();
+    fResourceCache2->abandonAll();
+
+    fGpu->contextAbandonded();
 
     // a path renderer may be holding onto resources that
     // are now unusable
@@ -207,7 +210,6 @@ void GrContext::abandonContext() {
 
     fFontCache->freeAll();
     fLayerCache->freeAll();
-    fGpu->markContextDirty();
 }
 
 void GrContext::resetContext(uint32_t state) {
@@ -218,6 +220,9 @@ void GrContext::freeGpuResources() {
     this->flush();
 
     fGpu->purgeResources();
+    if (NULL != fDrawBuffer) {
+        fDrawBuffer->purgeResources();
+    }
 
     fAARectRenderer->reset();
     fOvalRenderer->reset();
@@ -540,6 +545,15 @@ void GrContext::addExistingTextureToCache(GrTexture* texture) {
 }
 
 void GrContext::unlockScratchTexture(GrTexture* texture) {
+    if (texture->wasDestroyed()) {
+        if (texture->getCacheEntry()->key().isScratch()) {
+            // This texture was detached from the cache but the cache still had a ref to it but
+            // not a pointer to it.
+            texture->unref();
+        }
+        return;
+    }
+
     ASSERT_OWNED_RESOURCE(texture);
     SkASSERT(NULL != texture->getCacheEntry());