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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.
*/
#include "GrRenderTargetProxy.h"
#include "GrCaps.h"
#include "GrGpuResourcePriv.h"
#include "GrRenderTargetOpList.h"
#include "GrRenderTargetPriv.h"
#include "GrTextureProvider.h"
#include "GrTextureRenderTargetProxy.h"
// Deferred version
// TODO: we can probably munge the 'desc' in both the wrapped and deferred
// cases to make the sampleConfig/numSamples stuff more rational.
GrRenderTargetProxy::GrRenderTargetProxy(const GrCaps& caps, const GrSurfaceDesc& desc,
SkBackingFit fit, SkBudgeted budgeted)
: INHERITED(desc, fit, budgeted)
, fFlags(GrRenderTarget::Flags::kNone) {
// Since we know the newly created render target will be internal, we are able to precompute
// what the flags will ultimately end up being.
if (caps.usesMixedSamples() && fDesc.fSampleCnt > 0) {
fFlags |= GrRenderTarget::Flags::kMixedSampled;
}
if (caps.maxWindowRectangles() > 0) {
fFlags |= GrRenderTarget::Flags::kWindowRectsSupport;
}
}
// Wrapped version
GrRenderTargetProxy::GrRenderTargetProxy(sk_sp<GrSurface> surf)
: INHERITED(std::move(surf), SkBackingFit::kExact)
, fFlags(fTarget->asRenderTarget()->renderTargetPriv().flags()) {
}
int GrRenderTargetProxy::maxWindowRectangles(const GrCaps& caps) const {
return (fFlags & GrRenderTarget::Flags::kWindowRectsSupport) ? caps.maxWindowRectangles() : 0;
}
GrRenderTarget* GrRenderTargetProxy::instantiate(GrTextureProvider* texProvider) {
SkASSERT(fDesc.fFlags & GrSurfaceFlags::kRenderTarget_GrSurfaceFlag);
GrSurface* surf = INHERITED::instantiate(texProvider);
if (!surf || !surf->asRenderTarget()) {
return nullptr;
}
// Check that our a priori computation matched the ultimate reality
SkASSERT(fFlags == surf->asRenderTarget()->renderTargetPriv().flags());
return surf->asRenderTarget();
}
size_t GrRenderTargetProxy::onGpuMemorySize() const {
if (fTarget) {
return fTarget->gpuMemorySize();
}
// TODO: do we have enough information to improve this worst case estimate?
return GrSurface::ComputeSize(fDesc, fDesc.fSampleCnt+1, false, SkBackingFit::kApprox == fFit);
}
bool GrRenderTargetProxy::refsWrappedObjects() const {
if (!fTarget) {
return false;
}
return fTarget->resourcePriv().refsWrappedObjects();
}
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