| /* |
| * 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 GrDiscardBatch_DEFINED |
| #define GrDiscardBatch_DEFINED |
| |
| #include "GrBatch.h" |
| #include "GrBatchFlushState.h" |
| #include "GrGpu.h" |
| #include "GrRenderTarget.h" |
| |
| class GrDiscardBatch final : public GrBatch { |
| public: |
| DEFINE_BATCH_CLASS_ID |
| |
| GrDiscardBatch(GrRenderTarget* rt) |
| : INHERITED(ClassID()) |
| , fRenderTarget(rt) { |
| this->setBounds(SkRect::MakeIWH(rt->width(), rt->height()), HasAABloat::kNo, |
| IsZeroArea::kNo); |
| } |
| |
| const char* name() const override { return "Discard"; } |
| |
| // TODO: this needs to be updated to return GrSurfaceProxy::UniqueID |
| GrGpuResource::UniqueID renderTargetUniqueID() const override { |
| return fRenderTarget.get()->uniqueID(); |
| } |
| GrRenderTarget* renderTarget() const override { return fRenderTarget.get(); } |
| |
| SkString dumpInfo() const override { |
| SkString string; |
| string.printf("RT: %d", fRenderTarget.get()->uniqueID().asUInt()); |
| string.append(INHERITED::dumpInfo()); |
| return string; |
| } |
| |
| private: |
| bool onCombineIfPossible(GrBatch* that, const GrCaps& caps) override { |
| return this->renderTargetUniqueID() == that->renderTargetUniqueID(); |
| } |
| |
| void onPrepare(GrBatchFlushState*) override {} |
| |
| void onDraw(GrBatchFlushState* state, const SkRect& /*bounds*/) override { |
| state->commandBuffer()->discard(fRenderTarget.get()); |
| } |
| |
| GrPendingIOResource<GrRenderTarget, kWrite_GrIOType> fRenderTarget; |
| |
| typedef GrBatch INHERITED; |
| }; |
| |
| #endif |