Split GrResource into GrCacheable/GrGpuObject

include/gpu/GrResource.h

Index: include/gpu/GrResource.h
diff --git a/include/gpu/GrResource.h b/include/gpu/GrResource.h
deleted file mode 100644
index 93dec58d80632a2bea38303c3a32be994e73f237..0000000000000000000000000000000000000000
--- a/include/gpu/GrResource.h
+++ /dev/null
@@ -1,143 +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.
- */
-
-#ifndef GrResource_DEFINED
-#define GrResource_DEFINED
-
-#include "SkRefCnt.h"
-#include "SkTInternalLList.h"
-
-class GrGpu;
-class GrContext;
-class GrResourceEntry;
-
-/**
- * Base class for the GPU resources created by a GrContext.
- */
-class GrResource : public SkRefCnt {
-public:
-    SK_DECLARE_INST_COUNT(GrResource)
-
-    /**
-     * Frees the resource in the underlying 3D API. It must be safe to call this
-     * when the resource has been previously abandoned.
-     */
-    void release();
-
-    /**
-     * Removes references to objects in the underlying 3D API without freeing
-     * them. Used when the API context has been torn down before the GrContext.
-     */
-    void abandon();
-
-    /**
-     * Tests whether a resource has been abandoned or released. All resources
-     * will be in this state after their creating GrContext is destroyed or has
-     * contextLost called. It's up to the client to test isValid() before
-     * attempting to use a resource if it holds refs on resources across
-     * ~GrContext, freeResources with the force flag, or contextLost.
-     *
-     * @return true if the resource has been released or abandoned,
-     *         false otherwise.
-     */
-    bool isValid() const { return NULL != fGpu; }
-
-    /**
-     * Retrieves the size of the object in GPU memory. This is approximate since
-     * we aren't aware of additional padding or copies made by the driver.
-     *
-     * @return the size of the buffer in bytes
-     */
-    virtual size_t sizeInBytes() const = 0;
-
-    /**
-     * Retrieves the context that owns the resource. Note that it is possible
-     * for this to return NULL. When resources have been release()ed or
-     * abandon()ed they no longer have an owning context. Destroying a
-     * GrContext automatically releases all its resources.
-     */
-    const GrContext* getContext() const;
-    GrContext* getContext();
-
-    void setCacheEntry(GrResourceEntry* cacheEntry) { fCacheEntry = cacheEntry; }
-    GrResourceEntry* getCacheEntry() { return fCacheEntry; }
-
-    void incDeferredRefCount() const {
-        SkASSERT(fDeferredRefCount >= 0);
-        ++fDeferredRefCount;
-    }
-
-    void decDeferredRefCount() const {
-        SkASSERT(fDeferredRefCount > 0);
-        --fDeferredRefCount;
-        if (0 == fDeferredRefCount && this->needsDeferredUnref()) {
-            SkASSERT(this->getRefCnt() > 1);
-            this->unref();
-        }
-    }
-
-    int getDeferredRefCount() const { return fDeferredRefCount; }
-
-    void setNeedsDeferredUnref() { fFlags |= kDeferredUnref_FlagBit; }
-
-protected:
-    /**
-     * isWrapped indicates we have wrapped a client-created backend resource in a GrResource. If it
-     * is true then the client is responsible for the lifetime of the underlying backend resource.
-     * Otherwise, our onRelease() should free the resource.
-     */
-    GrResource(GrGpu* gpu, bool isWrapped);
-    virtual ~GrResource();
-
-    GrGpu* getGpu() const { return fGpu; }
-
-    // Derived classes should always call their parent class' onRelease
-    // and onAbandon methods in their overrides.
-    virtual void onRelease() {};
-    virtual void onAbandon() {};
-
-    bool isInCache() const { return NULL != fCacheEntry; }
-    bool isWrapped() const { return kWrapped_FlagBit & fFlags; }
-    bool needsDeferredUnref() const { return SkToBool(kDeferredUnref_FlagBit & fFlags); }
-
-private:
-#ifdef SK_DEBUG
-    friend class GrGpu; // for assert in GrGpu to access getGpu
-#endif
-
-    // We're in an internal doubly linked list
-    SK_DECLARE_INTERNAL_LLIST_INTERFACE(GrResource);
-
-    GrGpu*              fGpu;               // not reffed. The GrGpu can be deleted while there
-                                            // are still live GrResources. It will call
-                                            // release() on all such resources in its
-                                            // destructor.
-    GrResourceEntry*    fCacheEntry;        // NULL if not in cache
-    mutable int         fDeferredRefCount;  // How many references in deferred drawing buffers.
-
-    enum Flags {
-        /**
-         * This resource wraps a GPU resource given to us by the user.
-         * Lifetime management is left up to the user (i.e., we will not
-         * free it).
-         */
-        kWrapped_FlagBit         = 0x1,
-
-        /**
-         * This texture should be de-refed when the deferred ref count goes
-         * to zero. A resource gets into this state when the resource cache
-         * is holding a ref-of-obligation (i.e., someone needs to own it but
-         * no one else wants to) but doesn't really want to keep it around.
-         */
-        kDeferredUnref_FlagBit  = 0x2,
-    };
-    uint32_t         fFlags;
-
-    typedef SkRefCnt INHERITED;
-};
-
-#endif