7c8460e101
Bug: skia: Change-Id: I24549604e8305028e34e0022bfef992a8e8c33f7 Reviewed-on: https://skia-review.googlesource.com/16230 Commit-Queue: Brian Salomon <bsalomon@google.com> Reviewed-by: Robert Phillips <robertphillips@google.com>
85 lines
2.9 KiB
C++
85 lines
2.9 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 GrRenderTargetProxy_DEFINED
|
|
#define GrRenderTargetProxy_DEFINED
|
|
|
|
#include "GrRenderTarget.h"
|
|
#include "GrSurfaceProxy.h"
|
|
#include "GrTypes.h"
|
|
|
|
class GrResourceProvider;
|
|
|
|
// This class delays the acquisition of RenderTargets until they are actually
|
|
// required
|
|
// Beware: the uniqueID of the RenderTargetProxy will usually be different than
|
|
// the uniqueID of the RenderTarget it represents!
|
|
class GrRenderTargetProxy : virtual public GrSurfaceProxy {
|
|
public:
|
|
GrRenderTargetProxy* asRenderTargetProxy() override { return this; }
|
|
const GrRenderTargetProxy* asRenderTargetProxy() const override { return this; }
|
|
|
|
// Actually instantiate the backing rendertarget, if necessary.
|
|
GrRenderTarget* instantiate(GrResourceProvider* resourceProvider);
|
|
|
|
/**
|
|
* Returns the number of samples/pixel in the stencil buffer (Zero if non-MSAA).
|
|
*/
|
|
int numStencilSamples() const { return fDesc.fSampleCnt; }
|
|
|
|
GrFSAAType fsaaType() const {
|
|
if (!fDesc.fSampleCnt) {
|
|
SkASSERT(!(fRenderTargetFlags & GrRenderTarget::Flags::kMixedSampled));
|
|
return GrFSAAType::kNone;
|
|
}
|
|
return (fRenderTargetFlags & GrRenderTarget::Flags::kMixedSampled)
|
|
? GrFSAAType::kMixedSamples
|
|
: GrFSAAType::kUnifiedMSAA;
|
|
}
|
|
/**
|
|
* Returns the number of samples/pixel in the color buffer (Zero if non-MSAA or mixed sampled).
|
|
*/
|
|
int numColorSamples() const {
|
|
return GrFSAAType::kMixedSamples == this->fsaaType() ? 0 : fDesc.fSampleCnt;
|
|
}
|
|
|
|
int maxWindowRectangles(const GrCaps& caps) const;
|
|
|
|
GrRenderTarget::Flags testingOnly_getFlags() const;
|
|
|
|
// TODO: move this to a priv class!
|
|
bool refsWrappedObjects() const;
|
|
|
|
protected:
|
|
friend class GrSurfaceProxy; // for ctors
|
|
|
|
// Deferred version
|
|
GrRenderTargetProxy(const GrCaps&, const GrSurfaceDesc&,
|
|
SkBackingFit, SkBudgeted, uint32_t flags);
|
|
|
|
// Wrapped version
|
|
GrRenderTargetProxy(sk_sp<GrSurface>);
|
|
|
|
private:
|
|
size_t onGpuMemorySize() const override;
|
|
|
|
// For wrapped render targets the actual GrRenderTarget is stored in the GrIORefProxy class.
|
|
// For deferred proxies that pointer is filled in when we need to instantiate the
|
|
// deferred resource.
|
|
|
|
// These don't usually get computed until the render target is instantiated, but the render
|
|
// target proxy may need to answer queries about it before then. And since in the deferred case
|
|
// we know the newly created render target will be internal, we are able to precompute what the
|
|
// flags will ultimately end up being. In the wrapped case we just copy the wrapped
|
|
// rendertarget's info here.
|
|
GrRenderTarget::Flags fRenderTargetFlags;
|
|
|
|
typedef GrSurfaceProxy INHERITED;
|
|
};
|
|
|
|
#endif
|