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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 "GrTextureProvider.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)
, fTarget(nullptr)
, fFlags(GrRenderTargetPriv::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 |= GrRenderTargetPriv::Flags::kMixedSampled;
}
if (caps.maxWindowRectangles() > 0) {
fFlags |= GrRenderTargetPriv::Flags::kWindowRectsSupport;
}
}
// Wrapped version
GrRenderTargetProxy::GrRenderTargetProxy(const GrCaps& caps, sk_sp<GrRenderTarget> rt)
: INHERITED(rt->desc(), SkBackingFit::kExact,
rt->resourcePriv().isBudgeted(), rt->uniqueID())
, fTarget(std::move(rt))
, fFlags(fTarget->renderTargetPriv().flags()) {
}
GrRenderTarget* GrRenderTargetProxy::instantiate(GrTextureProvider* texProvider) {
if (fTarget) {
return fTarget.get();
}
// TODO: it would be nice to not have to copy the desc here
GrSurfaceDesc desc = fDesc;
desc.fFlags |= GrSurfaceFlags::kRenderTarget_GrSurfaceFlag;
sk_sp<GrTexture> tex;
if (SkBackingFit::kApprox == fFit) {
tex.reset(texProvider->createApproxTexture(desc));
} else {
tex.reset(texProvider->createTexture(desc, fBudgeted));
}
if (!tex || !tex->asRenderTarget()) {
return nullptr;
}
fTarget = sk_ref_sp(tex->asRenderTarget());
// Check that our a priori computation matched the ultimate reality
SkASSERT(fFlags == fTarget->renderTargetPriv().flags());
return fTarget.get();
}
sk_sp<GrRenderTargetProxy> GrRenderTargetProxy::Make(const GrCaps& caps,
const GrSurfaceDesc& desc,
SkBackingFit fit,
SkBudgeted budgeted) {
return sk_sp<GrRenderTargetProxy>(new GrRenderTargetProxy(caps, desc, fit, budgeted));
}
sk_sp<GrRenderTargetProxy> GrRenderTargetProxy::Make(const GrCaps& caps, sk_sp<GrRenderTarget> rt) {
return sk_sp<GrRenderTargetProxy>(new GrRenderTargetProxy(caps, rt));
}
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