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- /*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "include/gpu/GrRenderTarget.h"
- #include "include/gpu/GrContext.h"
- #include "src/core/SkRectPriv.h"
- #include "src/gpu/GrContextPriv.h"
- #include "src/gpu/GrGpu.h"
- #include "src/gpu/GrRenderTargetContext.h"
- #include "src/gpu/GrRenderTargetOpList.h"
- #include "src/gpu/GrRenderTargetPriv.h"
- #include "src/gpu/GrSamplePatternDictionary.h"
- #include "src/gpu/GrStencilAttachment.h"
- #include "src/gpu/GrStencilSettings.h"
- GrRenderTarget::GrRenderTarget(GrGpu* gpu, const GrSurfaceDesc& desc, int sampleCount,
- GrProtected isProtected, GrStencilAttachment* stencil)
- : INHERITED(gpu, desc, isProtected)
- , fSampleCnt(sampleCount)
- , fSamplePatternKey(GrSamplePatternDictionary::kInvalidSamplePatternKey)
- , fStencilAttachment(stencil) {
- fResolveRect = SkRectPriv::MakeILargestInverted();
- }
- GrRenderTarget::~GrRenderTarget() = default;
- void GrRenderTarget::flagAsNeedingResolve(const SkIRect* rect) {
- if (kCanResolve_ResolveType == getResolveType()) {
- if (rect) {
- fResolveRect.join(*rect);
- if (!fResolveRect.intersect(0, 0, this->width(), this->height())) {
- fResolveRect.setEmpty();
- }
- } else {
- fResolveRect.setLTRB(0, 0, this->width(), this->height());
- }
- }
- }
- void GrRenderTarget::flagAsResolved() {
- fResolveRect = SkRectPriv::MakeILargestInverted();
- }
- void GrRenderTarget::onRelease() {
- fStencilAttachment = nullptr;
- INHERITED::onRelease();
- }
- void GrRenderTarget::onAbandon() {
- fStencilAttachment = nullptr;
- INHERITED::onAbandon();
- }
- ///////////////////////////////////////////////////////////////////////////////
- void GrRenderTargetPriv::attachStencilAttachment(sk_sp<GrStencilAttachment> stencil) {
- #ifdef SK_DEBUG
- if (1 == fRenderTarget->fSampleCnt) {
- // TODO: We don't expect a mixed sampled render target to ever change its stencil buffer
- // right now. But if it does swap in a stencil buffer with a different number of samples,
- // and if we have a valid fSamplePatternKey, we will need to invalidate fSamplePatternKey
- // here and add tests to make sure we it properly.
- SkASSERT(GrSamplePatternDictionary::kInvalidSamplePatternKey ==
- fRenderTarget->fSamplePatternKey);
- } else {
- // Render targets with >1 color sample should never use mixed samples. (This would lead to
- // different sample patterns, depending on stencil state.)
- SkASSERT(!stencil || stencil->numSamples() == fRenderTarget->fSampleCnt);
- }
- #endif
- if (!stencil && !fRenderTarget->fStencilAttachment) {
- // No need to do any work since we currently don't have a stencil attachment and
- // we're not actually adding one.
- return;
- }
- fRenderTarget->fStencilAttachment = std::move(stencil);
- if (!fRenderTarget->completeStencilAttachment()) {
- fRenderTarget->fStencilAttachment = nullptr;
- }
- }
- int GrRenderTargetPriv::numStencilBits() const {
- SkASSERT(this->getStencilAttachment());
- return this->getStencilAttachment()->bits();
- }
- int GrRenderTargetPriv::getSamplePatternKey() const {
- #ifdef SK_DEBUG
- GrStencilAttachment* stencil = fRenderTarget->fStencilAttachment.get();
- if (fRenderTarget->fSampleCnt <= 1) {
- // If the color buffer is not multisampled, the sample pattern better come from the stencil
- // buffer (mixed samples).
- SkASSERT(stencil && stencil->numSamples() > 1);
- } else {
- // The color sample count and stencil count cannot both be unequal and both greater than
- // one. If this were the case, there would be more than one sample pattern associated with
- // the render target.
- SkASSERT(!stencil || stencil->numSamples() == fRenderTarget->fSampleCnt);
- }
- #endif
- if (GrSamplePatternDictionary::kInvalidSamplePatternKey == fRenderTarget->fSamplePatternKey) {
- fRenderTarget->fSamplePatternKey =
- fRenderTarget->getGpu()->findOrAssignSamplePatternKey(fRenderTarget);
- }
- SkASSERT(GrSamplePatternDictionary::kInvalidSamplePatternKey
- != fRenderTarget->fSamplePatternKey);
- return fRenderTarget->fSamplePatternKey;
- }
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