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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 "GrResourceProvider.h"
#include "GrSurfacePriv.h"
#include "GrTextureRenderTargetProxy.h"
#include "SkMathPriv.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,
GrSurfaceOrigin origin, SkBackingFit fit,
SkBudgeted budgeted, GrInternalSurfaceFlags surfaceFlags)
: INHERITED(desc, origin, fit, budgeted, surfaceFlags)
, fSampleCnt(desc.fSampleCnt)
, fNeedsStencil(false) {
// 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() && fSampleCnt > 1) {
this->setHasMixedSamples();
}
if (caps.maxWindowRectangles() > 0) {
this->setSupportsWindowRects();
}
}
// Lazy-callback version
GrRenderTargetProxy::GrRenderTargetProxy(LazyInstantiateCallback&& callback,
LazyInstantiationType lazyType, const GrSurfaceDesc& desc,
GrSurfaceOrigin origin, SkBackingFit fit,
SkBudgeted budgeted, GrInternalSurfaceFlags surfaceFlags)
: INHERITED(std::move(callback), lazyType, desc, origin, fit, budgeted, surfaceFlags)
, fSampleCnt(desc.fSampleCnt)
, fNeedsStencil(false) {
SkASSERT(SkToBool(kRenderTarget_GrSurfaceFlag & desc.fFlags));
}
// Wrapped version
GrRenderTargetProxy::GrRenderTargetProxy(sk_sp<GrSurface> surf, GrSurfaceOrigin origin)
: INHERITED(std::move(surf), origin, SkBackingFit::kExact)
, fSampleCnt(fTarget->asRenderTarget()->numStencilSamples())
, fNeedsStencil(false) {
}
int GrRenderTargetProxy::maxWindowRectangles(const GrCaps& caps) const {
return this->supportsWindowRects() ? caps.maxWindowRectangles() : 0;
}
bool GrRenderTargetProxy::instantiate(GrResourceProvider* resourceProvider) {
if (LazyState::kNot != this->lazyInstantiationState()) {
return false;
}
static constexpr GrSurfaceDescFlags kDescFlags = kRenderTarget_GrSurfaceFlag;
if (!this->instantiateImpl(resourceProvider, fSampleCnt, fNeedsStencil, kDescFlags,
GrMipMapped::kNo, nullptr)) {
return false;
}
SkASSERT(fTarget->asRenderTarget());
SkASSERT(!fTarget->asTexture());
return true;
}
sk_sp<GrSurface> GrRenderTargetProxy::createSurface(GrResourceProvider* resourceProvider) const {
static constexpr GrSurfaceDescFlags kDescFlags = kRenderTarget_GrSurfaceFlag;
sk_sp<GrSurface> surface = this->createSurfaceImpl(resourceProvider, fSampleCnt, fNeedsStencil,
kDescFlags, GrMipMapped::kNo);
if (!surface) {
return nullptr;
}
SkASSERT(surface->asRenderTarget());
SkASSERT(!surface->asTexture());
return surface;
}
size_t GrRenderTargetProxy::onUninstantiatedGpuMemorySize() const {
int colorSamplesPerPixel = this->numColorSamples();
if (colorSamplesPerPixel > 1) {
// Add one for the resolve buffer.
++colorSamplesPerPixel;
}
// TODO: do we have enough information to improve this worst case estimate?
return GrSurface::ComputeSize(this->config(), this->width(), this->height(),
colorSamplesPerPixel, GrMipMapped::kNo, !this->priv().isExact());
}
bool GrRenderTargetProxy::refsWrappedObjects() const {
if (!fTarget) {
return false;
}
return fTarget->resourcePriv().refsWrappedObjects();
}
#ifdef SK_DEBUG
void GrRenderTargetProxy::onValidateSurface(const GrSurface* surface) {
SkASSERT(!surface->asTexture());
// Anything that is checked here should be duplicated in GrTextureRenderTargetProxy's version
SkASSERT(surface->asRenderTarget());
SkASSERT(surface->asRenderTarget()->numStencilSamples() == this->numStencilSamples());
GrInternalSurfaceFlags proxyFlags = fSurfaceFlags;
GrInternalSurfaceFlags surfaceFlags = surface->surfacePriv().flags();
SkASSERT((proxyFlags & GrInternalSurfaceFlags::kRenderTargetMask) ==
(surfaceFlags & GrInternalSurfaceFlags::kRenderTargetMask));
}
#endif
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