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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/*
* 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 "GrAtlasTextContext.h"
#include "GrDrawContext.h"
#include "GrDrawingManager.h"
#include "GrDrawTarget.h"
#include "GrResourceProvider.h"
#include "GrSoftwarePathRenderer.h"
#include "GrStencilAndCoverTextContext.h"
#include "SkTTopoSort.h"
void GrDrawingManager::cleanup() {
for (int i = 0; i < fDrawTargets.count(); ++i) {
fDrawTargets[i]->makeClosed(); // no drawTarget should receive a new command after this
fDrawTargets[i]->clearRT();
fDrawTargets[i]->unref();
}
fDrawTargets.reset();
delete fNVPRTextContext;
fNVPRTextContext = nullptr;
for (int i = 0; i < kNumPixelGeometries; ++i) {
delete fTextContexts[i][0];
fTextContexts[i][0] = nullptr;
delete fTextContexts[i][1];
fTextContexts[i][1] = nullptr;
}
delete fPathRendererChain;
fPathRendererChain = nullptr;
SkSafeSetNull(fSoftwarePathRenderer);
}
GrDrawingManager::~GrDrawingManager() {
this->cleanup();
}
void GrDrawingManager::abandon() {
fAbandoned = true;
this->cleanup();
}
void GrDrawingManager::freeGpuResources() {
// a path renderer may be holding onto resources
delete fPathRendererChain;
fPathRendererChain = nullptr;
SkSafeSetNull(fSoftwarePathRenderer);
}
void GrDrawingManager::reset() {
for (int i = 0; i < fDrawTargets.count(); ++i) {
fDrawTargets[i]->reset();
}
fFlushState.reset();
}
void GrDrawingManager::flush() {
SkDEBUGCODE(bool result =)
SkTTopoSort<GrDrawTarget, GrDrawTarget::TopoSortTraits>(&fDrawTargets);
SkASSERT(result);
#if 0
for (int i = 0; i < fDrawTargets.count(); ++i) {
SkDEBUGCODE(fDrawTargets[i]->dump();)
}
#endif
for (int i = 0; i < fDrawTargets.count(); ++i) {
fDrawTargets[i]->prepareBatches(&fFlushState);
}
// Upload all data to the GPU
fFlushState.preIssueDraws();
for (int i = 0; i < fDrawTargets.count(); ++i) {
fDrawTargets[i]->drawBatches(&fFlushState);
}
SkASSERT(fFlushState.lastFlushedToken() == fFlushState.currentToken());
for (int i = 0; i < fDrawTargets.count(); ++i) {
fDrawTargets[i]->reset();
#ifdef ENABLE_MDB
fDrawTargets[i]->unref();
#endif
}
#ifndef ENABLE_MDB
// When MDB is disabled we keep reusing the same drawTarget
if (fDrawTargets.count()) {
SkASSERT(fDrawTargets.count() == 1);
// Clear out this flag so the topological sort's SkTTopoSort_CheckAllUnmarked check
// won't bark
fDrawTargets[0]->resetFlag(GrDrawTarget::kWasOutput_Flag);
}
#else
fDrawTargets.reset();
#endif
fFlushState.reset();
}
GrTextContext* GrDrawingManager::textContext(const SkSurfaceProps& props,
GrRenderTarget* rt) {
if (this->abandoned()) {
return nullptr;
}
SkASSERT(props.pixelGeometry() < kNumPixelGeometries);
bool useDIF = props.isUseDeviceIndependentFonts();
if (useDIF && fContext->caps()->shaderCaps()->pathRenderingSupport() &&
rt->isStencilBufferMultisampled()) {
GrStencilAttachment* sb = fContext->resourceProvider()->attachStencilAttachment(rt);
if (sb) {
if (!fNVPRTextContext) {
fNVPRTextContext = GrStencilAndCoverTextContext::Create(fContext, props);
}
return fNVPRTextContext;
}
}
if (!fTextContexts[props.pixelGeometry()][useDIF]) {
fTextContexts[props.pixelGeometry()][useDIF] = GrAtlasTextContext::Create(fContext, props);
}
return fTextContexts[props.pixelGeometry()][useDIF];
}
GrDrawTarget* GrDrawingManager::newDrawTarget(GrRenderTarget* rt) {
SkASSERT(fContext);
#ifndef ENABLE_MDB
// When MDB is disabled we always just return the single drawTarget
if (fDrawTargets.count()) {
SkASSERT(fDrawTargets.count() == 1);
// In the non-MDB-world the same drawTarget gets reused for multiple render targets.
// Update this pointer so all the asserts are happy
rt->setLastDrawTarget(fDrawTargets[0]);
// DrawingManager gets the creation ref - this ref is for the caller
return SkRef(fDrawTargets[0]);
}
#endif
GrDrawTarget* dt = new GrDrawTarget(rt, fContext->getGpu(), fContext->resourceProvider());
*fDrawTargets.append() = dt;
// DrawingManager gets the creation ref - this ref is for the caller
return SkRef(dt);
}
/*
* This method finds a path renderer that can draw the specified path on
* the provided target.
* Due to its expense, the software path renderer has split out so it can
* can be individually allowed/disallowed via the "allowSW" boolean.
*/
GrPathRenderer* GrDrawingManager::getPathRenderer(const GrPathRenderer::CanDrawPathArgs& args,
bool allowSW,
GrPathRendererChain::DrawType drawType,
GrPathRenderer::StencilSupport* stencilSupport) {
if (!fPathRendererChain) {
fPathRendererChain = new GrPathRendererChain(fContext);
}
GrPathRenderer* pr = fPathRendererChain->getPathRenderer(args, drawType, stencilSupport);
if (!pr && allowSW) {
if (!fSoftwarePathRenderer) {
fSoftwarePathRenderer = new GrSoftwarePathRenderer(fContext);
}
pr = fSoftwarePathRenderer;
}
return pr;
}
GrDrawContext* GrDrawingManager::drawContext(GrRenderTarget* rt,
const SkSurfaceProps* surfaceProps) {
if (this->abandoned()) {
return nullptr;
}
return new GrDrawContext(this, rt, surfaceProps);
}
|
