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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 #include "GrOptDrawState.h" | 8 #include "GrOptDrawState.h" |
9 | 9 |
10 #include "GrDefaultGeoProcFactory.h" | 10 #include "GrDefaultGeoProcFactory.h" |
11 #include "GrDrawState.h" | 11 #include "GrDrawState.h" |
12 #include "GrDrawTargetCaps.h" | 12 #include "GrDrawTargetCaps.h" |
13 #include "GrGpu.h" | 13 #include "GrGpu.h" |
14 #include "GrProcOptInfo.h" | 14 #include "GrProcOptInfo.h" |
15 | 15 |
16 GrOptDrawState::GrOptDrawState(const GrDrawState& drawState, | 16 GrOptDrawState::GrOptDrawState(const GrDrawState& drawState, |
17 GrDrawState::BlendOpt blendOpt, | |
18 GrBlendCoeff optSrcCoeff, | |
19 GrBlendCoeff optDstCoeff, | |
20 GrGpu* gpu, | 17 GrGpu* gpu, |
21 const ScissorState& scissorState, | 18 const ScissorState& scissorState, |
22 const GrDeviceCoordTexture* dstCopy, | 19 const GrDeviceCoordTexture* dstCopy, |
23 GrGpu::DrawType drawType) | 20 GrGpu::DrawType drawType) { |
24 : fRenderTarget(drawState.fRenderTarget.get()) { | 21 |
| 22 GrBlendCoeff optSrcCoeff; |
| 23 GrBlendCoeff optDstCoeff; |
| 24 GrDrawState::BlendOpt blendOpt = drawState.getBlendOpt(false, &optSrcCoeff,
&optDstCoeff); |
| 25 |
| 26 // When path rendering the stencil settings are not always set on the draw s
tate |
| 27 // so we must check the draw type. In cases where we will skip drawing we si
mply return a |
| 28 // null GrOptDrawState. |
| 29 if (GrDrawState::kSkipDraw_BlendOpt == blendOpt && GrGpu::kStencilPath_DrawT
ype != drawType) { |
| 30 // Set the fields that don't default init and return. The lack of a rend
er target will |
| 31 // indicate that this can be skipped. |
| 32 fFlags = 0; |
| 33 fVAPtr = NULL; |
| 34 fVACount = 0; |
| 35 fVAStride = 0; |
| 36 fDrawFace = GrDrawState::kInvalid_DrawFace; |
| 37 fSrcBlend = kZero_GrBlendCoeff; |
| 38 fDstBlend = kZero_GrBlendCoeff; |
| 39 fBlendConstant = 0x0; |
| 40 fViewMatrix.reset(); |
| 41 return; |
| 42 } |
| 43 |
| 44 fRenderTarget.reset(drawState.fRenderTarget.get()); |
| 45 SkASSERT(fRenderTarget); |
25 fScissorState = scissorState; | 46 fScissorState = scissorState; |
26 fViewMatrix = drawState.getViewMatrix(); | 47 fViewMatrix = drawState.getViewMatrix(); |
27 fBlendConstant = drawState.getBlendConstant(); | 48 fBlendConstant = drawState.getBlendConstant(); |
28 fVAPtr = drawState.getVertexAttribs(); | 49 fVAPtr = drawState.getVertexAttribs(); |
29 fVACount = drawState.getVertexAttribCount(); | 50 fVACount = drawState.getVertexAttribCount(); |
30 fVAStride = drawState.getVertexStride(); | 51 fVAStride = drawState.getVertexStride(); |
31 fStencilSettings = drawState.getStencil(); | 52 fStencilSettings = drawState.getStencil(); |
32 fDrawFace = drawState.getDrawFace(); | 53 fDrawFace = drawState.getDrawFace(); |
33 fSrcBlend = optSrcCoeff; | 54 fSrcBlend = optSrcCoeff; |
34 fDstBlend = optDstCoeff; | 55 fDstBlend = optDstCoeff; |
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99 GrPendingFragmentStage, | 120 GrPendingFragmentStage, |
100 (drawState.fCoverageStages[i], explicitLocalCoord
s)); | 121 (drawState.fCoverageStages[i], explicitLocalCoord
s)); |
101 } | 122 } |
102 | 123 |
103 this->setOutputStateInfo(drawState, blendOpt, *gpu->caps(), &descInfo); | 124 this->setOutputStateInfo(drawState, blendOpt, *gpu->caps(), &descInfo); |
104 | 125 |
105 // now create a key | 126 // now create a key |
106 gpu->buildProgramDesc(*this, descInfo, drawType, &fDesc); | 127 gpu->buildProgramDesc(*this, descInfo, drawType, &fDesc); |
107 }; | 128 }; |
108 | 129 |
109 GrOptDrawState* GrOptDrawState::Create(const GrDrawState& drawState, | |
110 GrGpu* gpu, | |
111 const ScissorState& scissorState, | |
112 const GrDeviceCoordTexture* dstCopy, | |
113 GrGpu::DrawType drawType) { | |
114 GrBlendCoeff srcCoeff; | |
115 GrBlendCoeff dstCoeff; | |
116 GrDrawState::BlendOpt blendOpt = drawState.getBlendOpt(false, &srcCoeff, &ds
tCoeff); | |
117 | |
118 // If our blend coeffs are set to 0,1 we know we will not end up drawing unl
ess we are | |
119 // stenciling. When path rendering the stencil settings are not always set o
n the draw state | |
120 // so we must check the draw type. In cases where we will skip drawing we si
mply return a | |
121 // null GrOptDrawState. | |
122 if (kZero_GrBlendCoeff == srcCoeff && kOne_GrBlendCoeff == dstCoeff && | |
123 !drawState.getStencil().doesWrite() && GrGpu::kStencilPath_DrawType != d
rawType) { | |
124 return NULL; | |
125 } | |
126 | |
127 return SkNEW_ARGS(GrOptDrawState, (drawState, blendOpt, srcCoeff, | |
128 dstCoeff, gpu, scissorState, dstCopy, dra
wType)); | |
129 } | |
130 | |
131 void GrOptDrawState::setOutputStateInfo(const GrDrawState& ds, | 130 void GrOptDrawState::setOutputStateInfo(const GrDrawState& ds, |
132 GrDrawState::BlendOpt blendOpt, | 131 GrDrawState::BlendOpt blendOpt, |
133 const GrDrawTargetCaps& caps, | 132 const GrDrawTargetCaps& caps, |
134 GrProgramDesc::DescInfo* descInfo) { | 133 GrProgramDesc::DescInfo* descInfo) { |
135 // Set this default and then possibly change our mind if there is coverage. | 134 // Set this default and then possibly change our mind if there is coverage. |
136 descInfo->fPrimaryOutputType = GrProgramDesc::kModulate_PrimaryOutputType; | 135 descInfo->fPrimaryOutputType = GrProgramDesc::kModulate_PrimaryOutputType; |
137 descInfo->fSecondaryOutputType = GrProgramDesc::kNone_SecondaryOutputType; | 136 descInfo->fSecondaryOutputType = GrProgramDesc::kNone_SecondaryOutputType; |
138 | 137 |
139 // Determine whether we should use dual source blending or shader code to ke
ep coverage | 138 // Determine whether we should use dual source blending or shader code to ke
ep coverage |
140 // separate from color. | 139 // separate from color. |
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308 SkASSERT(this->numFragmentStages() == that.numFragmentStages()); | 307 SkASSERT(this->numFragmentStages() == that.numFragmentStages()); |
309 for (int i = 0; i < this->numFragmentStages(); i++) { | 308 for (int i = 0; i < this->numFragmentStages(); i++) { |
310 | 309 |
311 if (this->getFragmentStage(i) != that.getFragmentStage(i)) { | 310 if (this->getFragmentStage(i) != that.getFragmentStage(i)) { |
312 return false; | 311 return false; |
313 } | 312 } |
314 } | 313 } |
315 return true; | 314 return true; |
316 } | 315 } |
317 | 316 |
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