| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 Google Inc. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #ifndef GrBufferedDrawTarget_DEFINED | 8 #ifndef GrBufferedDrawTarget_DEFINED |
| 9 #define GrBufferedDrawTarget_DEFINED | 9 #define GrBufferedDrawTarget_DEFINED |
| 10 | 10 |
| 11 #include "GrDrawTarget.h" | 11 #include "GrDrawTarget.h" |
| 12 #include "GrCommandBuilder.h" | 12 #include "GrCommandBuilder.h" |
| 13 #include "SkChunkAlloc.h" | 13 #include "SkChunkAlloc.h" |
| 14 | 14 |
| 15 /** | 15 /** |
| 16 * GrBufferedDrawTarget is an implementation of GrDrawTarget that queues up draw
s for eventual | 16 * GrBufferedDrawTarget is an implementation of GrDrawTarget that queues up draw
s for eventual |
| 17 * playback into a GrGpu. In theory one draw buffer could playback into another.
Similarly, it is | 17 * playback into a GrGpu. In theory one draw buffer could playback into another.
Similarly, it is |
| 18 * the caller's responsibility to ensure that all referenced textures, buffers,
and render-targets | 18 * the caller's responsibility to ensure that all referenced textures, buffers,
and render-targets |
| 19 * are associated in the GrGpu object that the buffer is played back into. | 19 * are associated in the GrGpu object that the buffer is played back into. |
| 20 */ | 20 */ |
| 21 class GrBufferedDrawTarget : public GrClipTarget { | 21 class GrBufferedDrawTarget : public GrClipTarget { |
| 22 public: | 22 public: |
| 23 | |
| 24 /** | 23 /** |
| 25 * Creates a GrBufferedDrawTarget | 24 * Creates a GrBufferedDrawTarget |
| 26 * | 25 * |
| 27 * @param context the context object that owns this draw buffer. | 26 * @param context the context object that owns this draw buffer. |
| 28 */ | 27 */ |
| 29 GrBufferedDrawTarget(GrContext* context); | 28 GrBufferedDrawTarget(GrContext* context); |
| 30 | 29 |
| 31 ~GrBufferedDrawTarget() override; | 30 ~GrBufferedDrawTarget() override; |
| 32 | 31 |
| 33 protected: | 32 protected: |
| 34 void appendIndicesAndTransforms(const void* indexValues, PathIndexType index
Type, | |
| 35 const float* transformValues, PathTransformT
ype transformType, | |
| 36 int count, char** indicesLocation, float** x
formsLocation) { | |
| 37 int indexBytes = GrPathRange::PathIndexSizeInBytes(indexType); | |
| 38 *indicesLocation = (char*) fPathIndexBuffer.alloc(count * indexBytes, | |
| 39 SkChunkAlloc::kThrow_A
llocFailType); | |
| 40 SkASSERT(SkIsAlign4((uintptr_t)*indicesLocation)); | |
| 41 memcpy(*indicesLocation, reinterpret_cast<const char*>(indexValues), cou
nt * indexBytes); | |
| 42 | |
| 43 const int xformBytes = GrPathRendering::PathTransformSize(transformType)
* sizeof(float); | |
| 44 *xformsLocation = nullptr; | |
| 45 | |
| 46 if (0 != xformBytes) { | |
| 47 *xformsLocation = (float*) fPathTransformBuffer.alloc(count * xformB
ytes, | |
| 48 SkChunkAlloc::kTh
row_AllocFailType); | |
| 49 SkASSERT(SkIsAlign4((uintptr_t)*xformsLocation)); | |
| 50 memcpy(*xformsLocation, transformValues, count * xformBytes); | |
| 51 } | |
| 52 } | |
| 53 | |
| 54 void onDrawBatch(GrBatch*) override; | 33 void onDrawBatch(GrBatch*) override; |
| 55 | 34 |
| 56 private: | 35 private: |
| 57 friend class GrInOrderCommandBuilder; | |
| 58 friend class GrTargetCommands; | |
| 59 | |
| 60 typedef GrTargetCommands::StateForPathDraw StateForPathDraw; | |
| 61 | |
| 62 StateForPathDraw* allocState(const GrPrimitiveProcessor* primProc = nullptr)
{ | |
| 63 void* allocation = fPipelineBuffer.alloc(sizeof(StateForPathDraw), | |
| 64 SkChunkAlloc::kThrow_AllocFailT
ype); | |
| 65 return new (allocation) StateForPathDraw(primProc); | |
| 66 } | |
| 67 | |
| 68 void unallocState(StateForPathDraw* state) { | |
| 69 state->unref(); | |
| 70 fPipelineBuffer.unalloc(state); | |
| 71 } | |
| 72 | |
| 73 void onReset() override; | 36 void onReset() override; |
| 74 void onFlush() override; | 37 void onFlush() override; |
| 75 | 38 |
| 76 void onDrawPaths(const GrPathProcessor*, | |
| 77 const GrPathRange*, | |
| 78 const void* indices, | |
| 79 PathIndexType, | |
| 80 const float transformValues[], | |
| 81 PathTransformType, | |
| 82 int count, | |
| 83 const GrStencilSettings&, | |
| 84 const PipelineInfo&) override; | |
| 85 | |
| 86 bool isIssued(uint32_t drawID) override { return drawID != fDrawID; } | |
| 87 | |
| 88 StateForPathDraw* SK_WARN_UNUSED_RESULT createStateForPathDraw( | |
| 89 const GrPrimitiveProcessor*, | |
| 90 const PipelineInfo&, | |
| 91 GrPipelineOptimizations* opts); | |
| 92 | |
| 93 // TODO: Use a single allocator for commands and records | |
| 94 enum { | |
| 95 kPathIdxBufferMinReserve = 2 * 64, // 64 uint16_t's | |
| 96 kPathXformBufferMinReserve = 2 * 64, // 64 two-float transforms | |
| 97 kPipelineBufferMinReserve = 32 * sizeof(StateForPathDraw), | |
| 98 }; | |
| 99 | |
| 100 // every 100 flushes we should reset our fPipelineBuffer to prevent us from
holding at a | |
| 101 // highwater mark | |
| 102 static const int kPipelineBufferHighWaterMark = 100; | |
| 103 | |
| 104 SkAutoTDelete<GrCommandBuilder> fCommands; | 39 SkAutoTDelete<GrCommandBuilder> fCommands; |
| 105 SkChunkAlloc fPathIndexBuffer; | |
| 106 SkChunkAlloc fPathTransformBuffer; | |
| 107 SkChunkAlloc fPipelineBuffer; | |
| 108 uint32_t fDrawID; | 40 uint32_t fDrawID; |
| 109 SkAutoTUnref<StateForPathDraw> fPrevState; | |
| 110 | 41 |
| 111 typedef GrClipTarget INHERITED; | 42 typedef GrClipTarget INHERITED; |
| 112 }; | 43 }; |
| 113 | 44 |
| 114 #endif | 45 #endif |
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