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| 1 /* |
| 2 * Copyright 2015 Google Inc. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 |
| 8 #ifndef GrDiscardBatch_DEFINED |
| 9 #define GrDiscardBatch_DEFINED |
| 10 |
| 11 #include "GrBatch.h" |
| 12 #include "GrBatchFlushState.h" |
| 13 #include "GrGpu.h" |
| 14 #include "GrRenderTarget.h" |
| 15 |
| 16 class GrDiscardBatch final : public GrBatch { |
| 17 public: |
| 18 GrDiscardBatch(GrRenderTarget* rt) |
| 19 : fRenderTarget(rt) { |
| 20 this->initClassID<GrDiscardBatch>(); |
| 21 fBounds = SkRect::MakeWH(SkIntToScalar(rt->width()), SkIntToScalar(rt->h
eight())); |
| 22 } |
| 23 |
| 24 const char* name() const override { return "Discard"; } |
| 25 |
| 26 uint32_t renderTargetUniqueID() const override { return fRenderTarget.get()-
>getUniqueID(); } |
| 27 |
| 28 SkString dumpInfo() const { |
| 29 SkString string; |
| 30 string.printf("RT: 0x%p", fRenderTarget.get()); |
| 31 return string; |
| 32 } |
| 33 |
| 34 private: |
| 35 bool onCombineIfPossible(GrBatch* that, const GrCaps& caps) override { |
| 36 return fRenderTarget == that->cast<GrDiscardBatch>()->fRenderTarget; |
| 37 } |
| 38 |
| 39 void onPrepare(GrBatchFlushState*) override {} |
| 40 |
| 41 void onDraw(GrBatchFlushState* state) override { |
| 42 state->gpu()->discard(fRenderTarget.get()); |
| 43 } |
| 44 |
| 45 GrPendingIOResource<GrRenderTarget, kWrite_GrIOType> fRenderTarget; |
| 46 }; |
| 47 |
| 48 #endif |
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