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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 GrSurfaceProxy_DEFINED
#define GrSurfaceProxy_DEFINED
#include "GrGpuResource.h"
class GrTextureProxy;
class GrRenderTargetProxy;
class GrSurfaceProxy : public GrIORef<GrSurfaceProxy> {
public:
const GrSurfaceDesc& desc() const { return fDesc; }
GrSurfaceOrigin origin() const {
SkASSERT(kTopLeft_GrSurfaceOrigin == fDesc.fOrigin ||
kBottomLeft_GrSurfaceOrigin == fDesc.fOrigin);
return fDesc.fOrigin;
}
int width() const { return fDesc.fWidth; }
int height() const { return fDesc.fWidth; }
GrPixelConfig config() const { return fDesc.fConfig; }
uint32_t uniqueID() const { return fUniqueID; }
/**
* @return the texture proxy associated with the surface proxy, may be NULL.
*/
virtual GrTextureProxy* asTextureProxy() { return nullptr; }
virtual const GrTextureProxy* asTextureProxy() const { return nullptr; }
/**
* @return the render target proxy associated with the surface proxy, may be NULL.
*/
virtual GrRenderTargetProxy* asRenderTargetProxy() { return nullptr; }
virtual const GrRenderTargetProxy* asRenderTargetProxy() const { return nullptr; }
protected:
GrSurfaceProxy(const GrSurfaceDesc& desc, SkBackingFit fit, SkBudgeted budgeted)
: fDesc(desc)
, fFit(fit)
, fBudgeted(budgeted)
, fUniqueID(CreateUniqueID()) {
}
virtual ~GrSurfaceProxy() {}
// For wrapped resources, 'fDesc' will always be filled in from the wrapped resource.
const GrSurfaceDesc fDesc;
const SkBackingFit fFit; // always exact for wrapped resources
const SkBudgeted fBudgeted; // set from the backing resource for wrapped resources
const uint32_t fUniqueID;
private:
static uint32_t CreateUniqueID();
// See comment in GrGpuResource.h.
void notifyAllCntsAreZero(CntType) const { delete this; }
bool notifyRefCountIsZero() const { return true; }
typedef GrIORef<GrSurfaceProxy> INHERITED;
// to access notifyAllCntsAreZero and notifyRefCntIsZero.
friend class GrIORef<GrSurfaceProxy>;
};
#endif
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