skia2/include/private/GrSurfaceProxy.h
2016-08-31 15:06:24 -07:00

92 lines
2.8 KiB
C++

/*
* 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; }
/**
* Helper that gets the width and height of the surface as a bounding rectangle.
*/
SkRect getBoundsRect() const { return SkRect::MakeIWH(this->width(), this->height()); }
/**
* @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; }
/**
* Does the resource count against the resource budget?
*/
SkBudgeted isBudgeted() const { return fBudgeted; }
protected:
// Deferred version
GrSurfaceProxy(const GrSurfaceDesc& desc, SkBackingFit fit, SkBudgeted budgeted)
: fDesc(desc)
, fFit(fit)
, fBudgeted(budgeted)
, fUniqueID(GrGpuResource::CreateUniqueID()) {
}
// Wrapped version
GrSurfaceProxy(const GrSurfaceDesc& desc, SkBackingFit fit,
SkBudgeted budgeted, uint32_t uniqueID)
: fDesc(desc)
, fFit(fit)
, fBudgeted(budgeted)
, fUniqueID(uniqueID) {
}
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; // set from the backing resource for wrapped resources
private:
// 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