1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrPipeline.h"
#include "GrCaps.h"
#include "GrBatch.h"
#include "GrGpu.h"
#include "GrPipelineBuilder.h"
#include "GrProcOptInfo.h"
#include "GrXferProcessor.h"
GrPipeline::GrPipeline(const GrPipelineBuilder& pipelineBuilder,
const GrProcOptInfo& colorPOI,
const GrProcOptInfo& coveragePOI,
const GrCaps& caps,
const GrScissorState& scissorState,
const GrXferProcessor::DstTexture* dstTexture) {
// Create XferProcessor from DS's XPFactory
SkAutoTUnref<GrXferProcessor> xferProcessor(
pipelineBuilder.getXPFactory()->createXferProcessor(
colorPOI, coveragePOI, pipelineBuilder.hasMixedSamples(), dstTexture, caps));
GrColor overrideColor = GrColor_ILLEGAL;
if (colorPOI.firstEffectiveStageIndex() != 0) {
overrideColor = colorPOI.inputColorToEffectiveStage();
}
GrXferProcessor::OptFlags optFlags;
if (xferProcessor) {
fXferProcessor.reset(xferProcessor.get());
optFlags = xferProcessor->getOptimizations(colorPOI,
coveragePOI,
pipelineBuilder.getStencil().doesWrite(),
&overrideColor,
caps);
}
// When path rendering the stencil settings are not always set on the GrPipelineBuilder
// so we must check the draw type. In cases where we will skip drawing we simply return a
// null GrPipeline.
if (!xferProcessor || (GrXferProcessor::kSkipDraw_OptFlag & optFlags)) {
// Set the fields that don't default init and return. The lack of a render target will
// indicate that this can be skipped.
fFlags = 0;
fDrawFace = GrPipelineBuilder::kInvalid_DrawFace;
return;
}
fRenderTarget.reset(pipelineBuilder.fRenderTarget.get());
SkASSERT(fRenderTarget);
fScissorState = scissorState;
fStencilSettings = pipelineBuilder.getStencil();
fDrawFace = pipelineBuilder.getDrawFace();
fFlags = 0;
if (pipelineBuilder.isHWAntialias()) {
fFlags |= kHWAA_Flag;
}
if (pipelineBuilder.isDither()) {
fFlags |= kDither_Flag;
}
if (pipelineBuilder.snapVerticesToPixelCenters()) {
fFlags |= kSnapVertices_Flag;
}
int firstColorStageIdx = colorPOI.firstEffectiveStageIndex();
// TODO: Once we can handle single or four channel input into coverage stages then we can use
// GrPipelineBuilder's coverageProcInfo (like color above) to set this initial information.
int firstCoverageStageIdx = 0;
this->adjustProgramFromOptimizations(pipelineBuilder, optFlags, colorPOI, coveragePOI,
&firstColorStageIdx, &firstCoverageStageIdx);
bool usesLocalCoords = false;
// Copy Stages from PipelineBuilder to Pipeline
for (int i = firstColorStageIdx; i < pipelineBuilder.numColorFragmentStages(); ++i) {
SkNEW_APPEND_TO_TARRAY(&fFragmentStages,
GrPendingFragmentStage,
(pipelineBuilder.fColorStages[i]));
usesLocalCoords = usesLocalCoords ||
pipelineBuilder.fColorStages[i].processor()->usesLocalCoords();
}
fNumColorStages = fFragmentStages.count();
for (int i = firstCoverageStageIdx; i < pipelineBuilder.numCoverageFragmentStages(); ++i) {
SkNEW_APPEND_TO_TARRAY(&fFragmentStages,
GrPendingFragmentStage,
(pipelineBuilder.fCoverageStages[i]));
usesLocalCoords = usesLocalCoords ||
pipelineBuilder.fCoverageStages[i].processor()->usesLocalCoords();
}
// let the GP init the batch tracker
fInitBT.fColorIgnored = SkToBool(optFlags & GrXferProcessor::kIgnoreColor_OptFlag);
fInitBT.fOverrideColor = fInitBT.fColorIgnored ? GrColor_ILLEGAL : overrideColor;
fInitBT.fCoverageIgnored = SkToBool(optFlags & GrXferProcessor::kIgnoreCoverage_OptFlag);
fInitBT.fUsesLocalCoords = usesLocalCoords;
fInitBT.fCanTweakAlphaForCoverage =
SkToBool(optFlags & GrXferProcessor::kCanTweakAlphaForCoverage_OptFlag);
}
void GrPipeline::adjustProgramFromOptimizations(const GrPipelineBuilder& pipelineBuilder,
GrXferProcessor::OptFlags flags,
const GrProcOptInfo& colorPOI,
const GrProcOptInfo& coveragePOI,
int* firstColorStageIdx,
int* firstCoverageStageIdx) {
fReadsFragPosition = fXferProcessor->willReadFragmentPosition();
if ((flags & GrXferProcessor::kIgnoreColor_OptFlag) ||
(flags & GrXferProcessor::kOverrideColor_OptFlag)) {
*firstColorStageIdx = pipelineBuilder.numColorFragmentStages();
} else {
if (coveragePOI.readsFragPosition()) {
fReadsFragPosition = true;
}
}
if (flags & GrXferProcessor::kIgnoreCoverage_OptFlag) {
*firstCoverageStageIdx = pipelineBuilder.numCoverageFragmentStages();
} else {
if (coveragePOI.readsFragPosition()) {
fReadsFragPosition = true;
}
}
}
////////////////////////////////////////////////////////////////////////////////
bool GrPipeline::isEqual(const GrPipeline& that) const {
if (this->getRenderTarget() != that.getRenderTarget() ||
this->fFragmentStages.count() != that.fFragmentStages.count() ||
this->fNumColorStages != that.fNumColorStages ||
this->fScissorState != that.fScissorState ||
this->fFlags != that.fFlags ||
this->fStencilSettings != that.fStencilSettings ||
this->fDrawFace != that.fDrawFace) {
return false;
}
if (!this->getXferProcessor()->isEqual(*that.getXferProcessor())) {
return false;
}
// The program desc comparison should have already assured that the stage counts match.
SkASSERT(this->numFragmentStages() == that.numFragmentStages());
for (int i = 0; i < this->numFragmentStages(); i++) {
if (this->getFragmentStage(i) != that.getFragmentStage(i)) {
return false;
}
}
return true;
}
|
