| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrDiscardOp_DEFINED |
| #define GrDiscardOp_DEFINED |
| |
| #include "GrOp.h" |
| #include "GrOpFlushState.h" |
| #include "GrRenderTarget.h" |
| #include "GrRenderTargetProxy.h" |
| |
| class GrDiscardOp final : public GrOp { |
| public: |
| DEFINE_OP_CLASS_ID |
| |
| static std::unique_ptr<GrOp> Make(GrRenderTargetProxy* proxy) { |
| return std::unique_ptr<GrOp>(new GrDiscardOp(proxy)); |
| } |
| |
| const char* name() const override { return "Discard"; } |
| |
| SkString dumpInfo() const override { |
| SkString string; |
| string.append(INHERITED::dumpInfo()); |
| string.printf("proxyID: %d\n", fRenderTargetProxy.get()->uniqueID().asUInt()); |
| return string; |
| } |
| |
| private: |
| GrDiscardOp(GrRenderTargetProxy* proxy) |
| : INHERITED(ClassID()) |
| , fRenderTargetProxy(proxy) { |
| this->setBounds(SkRect::MakeIWH(proxy->width(), proxy->height()), |
| HasAABloat::kNo, IsZeroArea::kNo); |
| } |
| |
| bool onCombineIfPossible(GrOp* that, const GrCaps& caps) override { return false; } |
| |
| void onPrepare(GrOpFlushState*) override {} |
| |
| void onExecute(GrOpFlushState* state) override { |
| GrRenderTarget* rt = fRenderTargetProxy.get()->instantiateRenderTarget( |
| state->resourceProvider()); |
| if (!rt) { |
| return; |
| } |
| |
| state->commandBuffer()->discard(rt); |
| } |
| |
| GrPendingIOResource<GrRenderTargetProxy, kWrite_GrIOType> fRenderTargetProxy; |
| |
| typedef GrOp INHERITED; |
| }; |
| |
| #endif |