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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrTextureProxy_DEFINED
#define GrTextureProxy_DEFINED
#include "GrSurfaceProxy.h"
#include "GrTexture.h"
class GrCaps;
class GrTextureProvider;
// This class delays the acquisition of textures until they are actually required
class GrTextureProxy : virtual public GrSurfaceProxy {
public:
// TODO: need to refine ownership semantics of 'srcData' if we're in completely
// deferred mode
static sk_sp<GrTextureProxy> Make(const GrCaps&, GrTextureProvider*, const GrSurfaceDesc&,
SkBackingFit, SkBudgeted,
const void* srcData = nullptr, size_t rowBytes = 0);
static sk_sp<GrTextureProxy> Make(sk_sp<GrTexture>);
// TODO: add asRenderTargetProxy variants
GrTextureProxy* asTextureProxy() override { return this; }
const GrTextureProxy* asTextureProxy() const override { return this; }
// Actually instantiate the backing texture, if necessary
GrTexture* instantiate(GrTextureProvider*);
protected:
// Deferred version
GrTextureProxy(const GrSurfaceDesc& srcDesc, SkBackingFit, SkBudgeted,
const void* srcData, size_t srcRowBytes);
// Wrapped version
GrTextureProxy(sk_sp<GrTexture> tex);
private:
size_t onGpuMemorySize() const override;
// For wrapped proxies the GrTexture pointer is stored in GrIORefProxy.
// For deferred proxies that pointer will be filled n when we need to instantiate
// the deferred resource
typedef GrSurfaceProxy INHERITED;
};
#endif
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