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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 GrBatchBuffer_DEFINED |
| 9 #define GrBatchBuffer_DEFINED |
| 10 |
| 11 #include "GrBatchAtlas.h" |
| 12 #if 0 |
| 13 #include "GrBufferAllocPool.h" |
| 14 #include "GrContext.h" |
| 15 #include "GrPendingProgramElement.h" |
| 16 #include "GrPipeline.h" |
| 17 #include "GrTRecorder.h" |
| 18 #include "GrVertices.h" |
| 19 |
| 20 /* |
| 21 * GrBatch instances use this object to allocate space for their geometry and to
issue the draws |
| 22 * that render their batch. |
| 23 */ |
| 24 class GrBatchTarget : public SkNoncopyable { |
| 25 public: |
| 26 typedef GrBatchAtlas::BatchToken BatchToken; |
| 27 GrBatchTarget(GrFoo* foo, GrGpu* gpu, GrRenderTarget* dst); |
| 28 |
| 29 void initDraw(const GrPrimitiveProcessor* primProc, const GrPipeline* pipeli
ne) { |
| 30 GrNEW_APPEND_TO_RECORDER(fFlushBuffer, BufferedFlush, (primProc, pipelin
e)); |
| 31 fNumberOfDraws++; |
| 32 fFoo1->inc(); |
| 33 //fCurrentToken1++; |
| 34 //SkASSERT(fFoo->currentToken(fCurrentToken1)); |
| 35 } |
| 36 |
| 37 class TextureUploader { |
| 38 public: |
| 39 TextureUploader(GrGpu* gpu) : fGpu(gpu) { SkASSERT(gpu); } |
| 40 |
| 41 /** |
| 42 * Updates the pixels in a rectangle of a texture. |
| 43 * |
| 44 * @param left left edge of the rectangle to write (inclusive) |
| 45 * @param top top edge of the rectangle to write (inclusive) |
| 46 * @param width width of rectangle to write in pixels. |
| 47 * @param height height of rectangle to write in pixels. |
| 48 * @param config the pixel config of the source buffer |
| 49 * @param buffer memory to read pixels from |
| 50 * @param rowBytes number of bytes between consecutive rows. Zero |
| 51 * means rows are tightly packed. |
| 52 */ |
| 53 bool writeTexturePixels(GrTexture* texture, |
| 54 int left, int top, int width, int height, |
| 55 GrPixelConfig config, const void* buffer, |
| 56 size_t rowBytes) { |
| 57 return fGpu->writePixels(texture, left, top, width, height, config,
buffer, rowBytes); |
| 58 } |
| 59 |
| 60 private: |
| 61 GrGpu* fGpu; |
| 62 }; |
| 63 |
| 64 class Uploader : public SkRefCnt { |
| 65 public: |
| 66 Uploader(BatchToken lastUploadToken) : fLastUploadToken(lastUploadToken)
{} |
| 67 BatchToken lastUploadToken() const { return fLastUploadToken; } |
| 68 virtual void upload(TextureUploader)=0; |
| 69 |
| 70 private: |
| 71 BatchToken fLastUploadToken; |
| 72 }; |
| 73 |
| 74 void upload(Uploader* upload) { |
| 75 if (this->asapToken() == upload->lastUploadToken()) { |
| 76 fAsapUploads.push_back().reset(SkRef(upload)); |
| 77 } else { |
| 78 fInlineUploads.push_back().reset(SkRef(upload)); |
| 79 } |
| 80 } |
| 81 |
| 82 void draw(const GrVertices& vertices) { |
| 83 fFlushBuffer.back().fVertexDraws.push_back(vertices); |
| 84 } |
| 85 |
| 86 bool isIssued(BatchToken token) const { return fLastFlushedToken >= token; } |
| 87 BatchToken currentToken1() const { |
| 88 //SkASSERT(fCurrentToken1 == fFoo->currentToken(fCurrentToken1)); |
| 89 return fFoo1->currentToken(); |
| 90 } |
| 91 BatchToken asapToken() const { return fLastFlushedToken + 1; } |
| 92 |
| 93 // TODO much of this complexity goes away when batch is everywhere |
| 94 void resetNumberOfDraws() { fNumberOfDraws = 0; } |
| 95 int numberOfDraws() const { return fNumberOfDraws; } |
| 96 void preFlush() { |
| 97 this->unmapVertexAndIndexBuffers(); |
| 98 int updateCount = fAsapUploads.count(); |
| 99 for (int i = 0; i < updateCount; i++) { |
| 100 fAsapUploads[i]->upload(TextureUploader(fGpu1)); |
| 101 } |
| 102 fInlineUpdatesIndex = 0; |
| 103 fIter = FlushBuffer::Iter(fFlushBuffer); |
| 104 } |
| 105 void flushNext(int n); |
| 106 void postFlush() { |
| 107 SkASSERT(!fIter.next()); |
| 108 fFlushBuffer.reset(); |
| 109 fAsapUploads.reset(); |
| 110 fInlineUploads.reset(); |
| 111 } |
| 112 |
| 113 const GrCaps& caps() const { return *fGpu1->caps(); } |
| 114 |
| 115 GrResourceProvider* resourceProvider() const { return fGpu1->getContext()->r
esourceProvider(); } |
| 116 |
| 117 void* makeVertSpace(size_t vertexSize, int vertexCount, |
| 118 const GrVertexBuffer** buffer, int* startVertex); |
| 119 uint16_t* makeIndexSpace(int indexCount, |
| 120 const GrIndexBuffer** buffer, int* startIndex); |
| 121 |
| 122 // A helper for draws which overallocate and then return data to the pool |
| 123 void putBackIndices(size_t indices) { fIndexPool.putBack(indices * sizeof(ui
nt16_t)); } |
| 124 |
| 125 void putBackVertices(size_t vertices, size_t vertexStride) { |
| 126 fVertexPool.putBack(vertices * vertexStride); |
| 127 } |
| 128 |
| 129 void reset() { |
| 130 fVertexPool.reset(); |
| 131 fIndexPool.reset(); |
| 132 } |
| 133 |
| 134 private: |
| 135 void unmapVertexAndIndexBuffers() { |
| 136 fVertexPool.unmap(); |
| 137 fIndexPool.unmap(); |
| 138 } |
| 139 |
| 140 GrGpu* fGpu1; |
| 141 GrVertexBufferAllocPool fVertexPool; |
| 142 GrIndexBufferAllocPool fIndexPool; |
| 143 |
| 144 typedef void* TBufferAlign; // This wouldn't be enough align if a command us
ed long double. |
| 145 |
| 146 struct BufferedFlush { |
| 147 BufferedFlush(const GrPrimitiveProcessor* primProc, const GrPipeline* pi
peline) |
| 148 : fPrimitiveProcessor(primProc) |
| 149 , fPipeline(pipeline) {} |
| 150 typedef GrPendingProgramElement<const GrPrimitiveProcessor> ProgramPrimi
tiveProcessor; |
| 151 ProgramPrimitiveProcessor fPrimitiveProcessor; |
| 152 const GrPipeline* fPipeline; |
| 153 GrBatchTracker fBatchTracker; |
| 154 SkSTArray<1, GrVertices, true> fVertexDraws; |
| 155 }; |
| 156 |
| 157 enum { |
| 158 kFlushBufferInitialSizeInBytes = 8 * sizeof(BufferedFlush), |
| 159 }; |
| 160 |
| 161 typedef GrTRecorder<BufferedFlush, TBufferAlign> FlushBuffer; |
| 162 |
| 163 FlushBuffer fFlushBuffer; |
| 164 // TODO this is temporary |
| 165 FlushBuffer::Iter fIter; |
| 166 int fNumberOfDraws; |
| 167 public: |
| 168 //BatchToken fCurrentToken1; |
| 169 GrFoo* fFoo1; |
| 170 GrRenderTarget* fRT; |
| 171 BatchToken fLastFlushedToken; // The next token to be flushed |
| 172 SkTArray<SkAutoTUnref<Uploader>, true> fAsapUploads; |
| 173 SkTArray<SkAutoTUnref<Uploader>, true> fInlineUploads; |
| 174 int fInlineUpdatesIndex; |
| 175 }; |
| 176 |
| 177 #endif |
| 178 #endif |
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