| /* |
| * Copyright 2019 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrOpsTask_DEFINED |
| #define GrOpsTask_DEFINED |
| |
| #include "include/core/SkMatrix.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkStrokeRec.h" |
| #include "include/core/SkTypes.h" |
| #include "include/private/SkColorData.h" |
| #include "include/private/SkTArray.h" |
| #include "include/private/SkTDArray.h" |
| #include "src/core/SkArenaAlloc.h" |
| #include "src/core/SkClipStack.h" |
| #include "src/core/SkStringUtils.h" |
| #include "src/core/SkTLazy.h" |
| #include "src/gpu/GrAppliedClip.h" |
| #include "src/gpu/GrPathRendering.h" |
| #include "src/gpu/GrPrimitiveProcessor.h" |
| #include "src/gpu/GrRenderTask.h" |
| #include "src/gpu/ops/GrDrawOp.h" |
| #include "src/gpu/ops/GrOp.h" |
| |
| class GrAuditTrail; |
| class GrCaps; |
| class GrClearOp; |
| class GrGpuBuffer; |
| class GrOpMemoryPool; |
| class GrRenderTargetProxy; |
| |
| class GrOpsTask : public GrRenderTask { |
| private: |
| using DstProxy = GrXferProcessor::DstProxy; |
| |
| public: |
| GrOpsTask(sk_sp<GrOpMemoryPool>, sk_sp<GrRenderTargetProxy>, GrAuditTrail*); |
| ~GrOpsTask() override; |
| |
| GrOpsTask* asOpsTask() override { return this; } |
| |
| bool isEmpty() const { return fOpChains.empty(); } |
| |
| /** |
| * Empties the draw buffer of any queued up draws. |
| */ |
| void endFlush() override; |
| |
| /** |
| * Together these two functions flush all queued up draws to GrCommandBuffer. The return value |
| * of executeOps() indicates whether any commands were actually issued to the GPU. |
| */ |
| void onPrepare(GrOpFlushState* flushState) override; |
| bool onExecute(GrOpFlushState* flushState) override; |
| |
| void addSampledTexture(GrTextureProxy* proxy) { |
| fSampledProxies.push_back(proxy); |
| } |
| |
| void addOp(std::unique_ptr<GrOp> op, GrTextureResolveManager textureResolveManager, |
| const GrCaps& caps) { |
| auto addDependency = [ textureResolveManager, &caps, this ] ( |
| GrTextureProxy* p, GrMipMapped mipmapped) { |
| this->addDependency(p, mipmapped, textureResolveManager, caps); |
| }; |
| |
| op->visitProxies(addDependency); |
| |
| this->recordOp(std::move(op), GrProcessorSet::EmptySetAnalysis(), nullptr, nullptr, caps); |
| } |
| |
| void addWaitOp(std::unique_ptr<GrOp> op, GrTextureResolveManager textureResolveManager, |
| const GrCaps& caps) { |
| fHasWaitOp = true; |
| this->addOp(std::move(op), textureResolveManager, caps); |
| } |
| |
| void addDrawOp(std::unique_ptr<GrDrawOp> op, const GrProcessorSet::Analysis& processorAnalysis, |
| GrAppliedClip&& clip, const DstProxy& dstProxy, |
| GrTextureResolveManager textureResolveManager, const GrCaps& caps) { |
| auto addDependency = [ textureResolveManager, &caps, this ] ( |
| GrTextureProxy* p, GrMipMapped mipmapped) { |
| this->addSampledTexture(p); |
| this->addDependency(p, mipmapped, textureResolveManager, caps); |
| }; |
| |
| op->visitProxies(addDependency); |
| clip.visitProxies(addDependency); |
| if (dstProxy.proxy()) { |
| this->addSampledTexture(dstProxy.proxy()); |
| addDependency(dstProxy.proxy(), GrMipMapped::kNo); |
| } |
| |
| this->recordOp(std::move(op), processorAnalysis, clip.doesClip() ? &clip : nullptr, |
| &dstProxy, caps); |
| } |
| |
| void discard(); |
| |
| SkDEBUGCODE(void dump(bool printDependencies) const override;) |
| SkDEBUGCODE(int numClips() const override { return fNumClips; }) |
| SkDEBUGCODE(void visitProxies_debugOnly(const VisitSurfaceProxyFunc&) const override;) |
| |
| private: |
| bool isNoOp() const { |
| // TODO: GrLoadOp::kDiscard (i.e., storing a discard) should also be grounds for skipping |
| // execution. We currently don't because of Vulkan. See http://skbug.com/9373. |
| // |
| // TODO: We should also consider stencil load/store here. We get away with it for now |
| // because we never discard stencil buffers. |
| return fOpChains.empty() && GrLoadOp::kLoad == fColorLoadOp; |
| } |
| |
| void deleteOps(); |
| |
| enum class StencilContent { |
| kDontCare, |
| kUserBitsCleared, // User bits: cleared |
| // Clip bit: don't care (Ganesh always pre-clears the clip bit.) |
| kPreserved |
| }; |
| |
| // Lets the caller specify what the content of the stencil buffer should be at the beginning |
| // of the render pass. |
| // |
| // When requesting kClear: Tilers will load the stencil buffer with a "clear" op; non-tilers |
| // will clear the stencil on first load, and then preserve it on subsequent loads. (Preserving |
| // works because renderTargetContexts are required to leave the user bits in a cleared state |
| // once finished.) |
| // |
| // NOTE: initialContent must not be kClear if caps.performStencilClearsAsDraws() is true. |
| void setInitialStencilContent(StencilContent initialContent) { |
| fInitialStencilContent = initialContent; |
| } |
| |
| // If a renderTargetContext splits its opsTask, it uses this method to guarantee stencil values |
| // get preserved across its split tasks. |
| void setMustPreserveStencil() { fMustPreserveStencil = true; } |
| |
| // Must only be called if native color buffer clearing is enabled. |
| void setColorLoadOp(GrLoadOp op, const SkPMColor4f& color); |
| // Sets the clear color to transparent black |
| void setColorLoadOp(GrLoadOp op) { |
| static const SkPMColor4f kDefaultClearColor = {0.f, 0.f, 0.f, 0.f}; |
| this->setColorLoadOp(op, kDefaultClearColor); |
| } |
| |
| enum class CanDiscardPreviousOps : bool { |
| kYes = true, |
| kNo = false |
| }; |
| |
| // Perform book-keeping for a fullscreen clear, regardless of how the clear is implemented later |
| // (i.e. setColorLoadOp(), adding a ClearOp, or adding a GrFillRectOp that covers the device). |
| // Returns true if the clear can be converted into a load op (barring device caps). |
| bool resetForFullscreenClear(CanDiscardPreviousOps); |
| |
| class OpChain { |
| public: |
| OpChain(const OpChain&) = delete; |
| OpChain& operator=(const OpChain&) = delete; |
| OpChain(std::unique_ptr<GrOp>, GrProcessorSet::Analysis, GrAppliedClip*, const DstProxy*); |
| |
| ~OpChain() { |
| // The ops are stored in a GrMemoryPool and must be explicitly deleted via the pool. |
| SkASSERT(fList.empty()); |
| } |
| |
| void visitProxies(const GrOp::VisitProxyFunc&) const; |
| |
| GrOp* head() const { return fList.head(); } |
| |
| GrAppliedClip* appliedClip() const { return fAppliedClip; } |
| const DstProxy& dstProxy() const { return fDstProxy; } |
| const SkRect& bounds() const { return fBounds; } |
| |
| // Deletes all the ops in the chain via the pool. |
| void deleteOps(GrOpMemoryPool* pool); |
| |
| // Attempts to move the ops from the passed chain to this chain at the head. Also attempts |
| // to merge ops between the chains. Upon success the passed chain is empty. |
| // Fails when the chains aren't of the same op type, have different clips or dst proxies. |
| bool prependChain(OpChain*, const GrCaps&, GrOpMemoryPool*, GrAuditTrail*); |
| |
| // Attempts to add 'op' to this chain either by merging or adding to the tail. Returns |
| // 'op' to the caller upon failure, otherwise null. Fails when the op and chain aren't of |
| // the same op type, have different clips or dst proxies. |
| std::unique_ptr<GrOp> appendOp(std::unique_ptr<GrOp> op, GrProcessorSet::Analysis, |
| const DstProxy*, const GrAppliedClip*, const GrCaps&, |
| GrOpMemoryPool*, GrAuditTrail*); |
| |
| void setSkipExecuteFlag() { fSkipExecute = true; } |
| bool shouldExecute() const { |
| return SkToBool(this->head()) && !fSkipExecute; |
| } |
| |
| private: |
| class List { |
| public: |
| List() = default; |
| List(std::unique_ptr<GrOp>); |
| List(List&&); |
| List& operator=(List&& that); |
| |
| bool empty() const { return !SkToBool(fHead); } |
| GrOp* head() const { return fHead.get(); } |
| GrOp* tail() const { return fTail; } |
| |
| std::unique_ptr<GrOp> popHead(); |
| std::unique_ptr<GrOp> removeOp(GrOp* op); |
| void pushHead(std::unique_ptr<GrOp> op); |
| void pushTail(std::unique_ptr<GrOp>); |
| |
| void validate() const; |
| |
| private: |
| std::unique_ptr<GrOp> fHead; |
| GrOp* fTail = nullptr; |
| }; |
| |
| void validate() const; |
| |
| bool tryConcat(List*, GrProcessorSet::Analysis, const DstProxy&, const GrAppliedClip*, |
| const SkRect& bounds, const GrCaps&, GrOpMemoryPool*, GrAuditTrail*); |
| static List DoConcat(List, List, const GrCaps&, GrOpMemoryPool*, GrAuditTrail*); |
| |
| List fList; |
| GrProcessorSet::Analysis fProcessorAnalysis; |
| DstProxy fDstProxy; |
| GrAppliedClip* fAppliedClip; |
| SkRect fBounds; |
| |
| // We set this flag to true if any of the ops' proxies fail to instantiate so that we know |
| // not to try and draw the op. |
| bool fSkipExecute = false; |
| }; |
| |
| |
| bool onIsUsed(GrSurfaceProxy*) const override; |
| |
| void handleInternalAllocationFailure() override; |
| |
| void gatherProxyIntervals(GrResourceAllocator*) const override; |
| |
| void recordOp(std::unique_ptr<GrOp>, GrProcessorSet::Analysis, GrAppliedClip*, const DstProxy*, |
| const GrCaps& caps); |
| |
| void forwardCombine(const GrCaps&); |
| |
| ExpectedOutcome onMakeClosed(const GrCaps& caps, SkIRect* targetUpdateBounds) override; |
| |
| friend class GrRenderTargetContextPriv; // for stencil clip state. TODO: this is invasive |
| |
| // The RTC and OpsTask have to work together to handle buffer clears. In most cases, buffer |
| // clearing can be done natively, in which case the op list's load ops are sufficient. In other |
| // cases, draw ops must be used, which makes the RTC the best place for those decisions. This, |
| // however, requires that the RTC be able to coordinate with the op list to achieve similar ends |
| friend class GrRenderTargetContext; |
| |
| // This is a backpointer to the GrOpMemoryPool that holds the memory for this GrOpsTask's ops. |
| // In the DDL case, these back pointers keep the DDL's GrOpMemoryPool alive as long as its |
| // constituent GrOpsTask survives. |
| sk_sp<GrOpMemoryPool> fOpMemoryPool; |
| GrAuditTrail* fAuditTrail; |
| |
| GrLoadOp fColorLoadOp = GrLoadOp::kLoad; |
| SkPMColor4f fLoadClearColor = SK_PMColor4fTRANSPARENT; |
| StencilContent fInitialStencilContent = StencilContent::kDontCare; |
| bool fMustPreserveStencil = false; |
| |
| uint32_t fLastClipStackGenID; |
| SkIRect fLastDevClipBounds; |
| int fLastClipNumAnalyticFPs; |
| |
| // We must track if we have a wait op so that we don't delete the op when we have a full clear. |
| bool fHasWaitOp = false;; |
| |
| // For ops/opsTask we have mean: 5 stdDev: 28 |
| SkSTArray<25, OpChain, true> fOpChains; |
| |
| // MDB TODO: 4096 for the first allocation of the clip space will be huge overkill. |
| // Gather statistics to determine the correct size. |
| SkArenaAlloc fClipAllocator{4096}; |
| SkDEBUGCODE(int fNumClips;) |
| |
| // TODO: We could look into this being a set if we find we're adding a lot of duplicates that is |
| // causing slow downs. |
| SkTArray<GrTextureProxy*, true> fSampledProxies; |
| |
| SkRect fTotalBounds = SkRect::MakeEmpty(); |
| SkIRect fClippedContentBounds = SkIRect::MakeEmpty(); |
| }; |
| |
| #endif |