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
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrGLProgramBuilder.h"
#include "GrAutoLocaleSetter.h"
#include "GrCoordTransform.h"
#include "GrGLProgramBuilder.h"
#include "GrProgramDesc.h"
#include "GrSwizzle.h"
#include "GrTexture.h"
#include "SkTraceEvent.h"
#include "gl/GrGLGpu.h"
#include "gl/GrGLProgram.h"
#include "gl/GrGLSLPrettyPrint.h"
#include "gl/builders/GrGLShaderStringBuilder.h"
#include "glsl/GrGLSLCaps.h"
#include "glsl/GrGLSLFragmentProcessor.h"
#include "glsl/GrGLSLGeometryProcessor.h"
#include "glsl/GrGLSLProgramDataManager.h"
#include "glsl/GrGLSLSampler.h"
#include "glsl/GrGLSLXferProcessor.h"
#define GL_CALL(X) GR_GL_CALL(this->gpu()->glInterface(), X)
#define GL_CALL_RET(R, X) GR_GL_CALL_RET(this->gpu()->glInterface(), R, X)
GrGLProgram* GrGLProgramBuilder::CreateProgram(const GrPipeline& pipeline,
const GrPrimitiveProcessor& primProc,
const GrProgramDesc& desc,
GrGLGpu* gpu) {
GrAutoLocaleSetter als("C");
// create a builder. This will be handed off to effects so they can use it to add
// uniforms, varyings, textures, etc
GrGLProgramBuilder builder(gpu, pipeline, primProc, desc);
// TODO: Once all stages can handle taking a float or vec4 and correctly handling them we can
// seed correctly here
GrGLSLExpr4 inputColor;
GrGLSLExpr4 inputCoverage;
if (!builder.emitAndInstallProcs(&inputColor, &inputCoverage)) {
builder.cleanupFragmentProcessors();
return nullptr;
}
return builder.finalize();
}
/////////////////////////////////////////////////////////////////////////////
GrGLProgramBuilder::GrGLProgramBuilder(GrGLGpu* gpu,
const GrPipeline& pipeline,
const GrPrimitiveProcessor& primProc,
const GrProgramDesc& desc)
: INHERITED(pipeline, primProc, desc)
, fGpu(gpu)
, fVaryingHandler(this)
, fUniformHandler(this) {
}
const GrCaps* GrGLProgramBuilder::caps() const {
return fGpu->caps();
}
const GrGLSLCaps* GrGLProgramBuilder::glslCaps() const {
return fGpu->ctxInfo().caps()->glslCaps();
}
bool GrGLProgramBuilder::compileAndAttachShaders(GrGLSLShaderBuilder& shader,
GrGLuint programId,
GrGLenum type,
SkTDArray<GrGLuint>* shaderIds) {
GrGLGpu* gpu = this->gpu();
GrGLuint shaderId = GrGLCompileAndAttachShader(gpu->glContext(),
programId,
type,
shader.fCompilerStrings.begin(),
shader.fCompilerStringLengths.begin(),
shader.fCompilerStrings.count(),
gpu->stats());
if (!shaderId) {
return false;
}
*shaderIds->append() = shaderId;
return true;
}
GrGLProgram* GrGLProgramBuilder::finalize() {
// verify we can get a program id
GrGLuint programID;
GL_CALL_RET(programID, CreateProgram());
if (0 == programID) {
this->cleanupFragmentProcessors();
return nullptr;
}
this->finalizeShaders();
// compile shaders and bind attributes / uniforms
SkTDArray<GrGLuint> shadersToDelete;
if (!this->compileAndAttachShaders(fVS, programID, GR_GL_VERTEX_SHADER, &shadersToDelete)) {
this->cleanupProgram(programID, shadersToDelete);
return nullptr;
}
// NVPR actually requires a vertex shader to compile
bool useNvpr = primitiveProcessor().isPathRendering();
if (!useNvpr) {
const GrPrimitiveProcessor& primProc = this->primitiveProcessor();
int vaCount = primProc.numAttribs();
for (int i = 0; i < vaCount; i++) {
GL_CALL(BindAttribLocation(programID, i, primProc.getAttrib(i).fName));
}
}
if (!this->compileAndAttachShaders(fFS, programID, GR_GL_FRAGMENT_SHADER, &shadersToDelete)) {
this->cleanupProgram(programID, shadersToDelete);
return nullptr;
}
this->bindProgramResourceLocations(programID);
GL_CALL(LinkProgram(programID));
// Calling GetProgramiv is expensive in Chromium. Assume success in release builds.
bool checkLinked = kChromium_GrGLDriver != fGpu->ctxInfo().driver();
#ifdef SK_DEBUG
checkLinked = true;
#endif
if (checkLinked) {
checkLinkStatus(programID);
}
this->resolveProgramResourceLocations(programID);
this->cleanupShaders(shadersToDelete);
return this->createProgram(programID);
}
void GrGLProgramBuilder::bindProgramResourceLocations(GrGLuint programID) {
fUniformHandler.bindUniformLocations(programID, fGpu->glCaps());
const GrGLCaps& caps = this->gpu()->glCaps();
if (fFS.hasCustomColorOutput() && caps.bindFragDataLocationSupport()) {
GL_CALL(BindFragDataLocation(programID, 0,
GrGLSLFragmentShaderBuilder::DeclaredColorOutputName()));
}
if (fFS.hasSecondaryOutput() && caps.glslCaps()->mustDeclareFragmentShaderOutput()) {
GL_CALL(BindFragDataLocationIndexed(programID, 0, 1,
GrGLSLFragmentShaderBuilder::DeclaredSecondaryColorOutputName()));
}
// handle NVPR separable varyings
if (!fGpu->glCaps().shaderCaps()->pathRenderingSupport() ||
!fGpu->glPathRendering()->shouldBindFragmentInputs()) {
return;
}
int count = fVaryingHandler.fPathProcVaryingInfos.count();
for (int i = 0; i < count; ++i) {
GL_CALL(BindFragmentInputLocation(programID, i,
fVaryingHandler.fPathProcVaryingInfos[i].fVariable.c_str()));
fVaryingHandler.fPathProcVaryingInfos[i].fLocation = i;
}
}
bool GrGLProgramBuilder::checkLinkStatus(GrGLuint programID) {
GrGLint linked = GR_GL_INIT_ZERO;
GL_CALL(GetProgramiv(programID, GR_GL_LINK_STATUS, &linked));
if (!linked) {
GrGLint infoLen = GR_GL_INIT_ZERO;
GL_CALL(GetProgramiv(programID, GR_GL_INFO_LOG_LENGTH, &infoLen));
SkAutoMalloc log(sizeof(char)*(infoLen+1)); // outside if for debugger
if (infoLen > 0) {
// retrieve length even though we don't need it to workaround
// bug in chrome cmd buffer param validation.
GrGLsizei length = GR_GL_INIT_ZERO;
GL_CALL(GetProgramInfoLog(programID,
infoLen+1,
&length,
(char*)log.get()));
SkDebugf("%s", (char*)log.get());
}
SkDEBUGFAIL("Error linking program");
GL_CALL(DeleteProgram(programID));
programID = 0;
}
return SkToBool(linked);
}
void GrGLProgramBuilder::resolveProgramResourceLocations(GrGLuint programID) {
fUniformHandler.getUniformLocations(programID, fGpu->glCaps());
// handle NVPR separable varyings
if (!fGpu->glCaps().shaderCaps()->pathRenderingSupport() ||
fGpu->glPathRendering()->shouldBindFragmentInputs()) {
return;
}
int count = fVaryingHandler.fPathProcVaryingInfos.count();
for (int i = 0; i < count; ++i) {
GrGLint location;
GL_CALL_RET(location, GetProgramResourceLocation(
programID,
GR_GL_FRAGMENT_INPUT,
fVaryingHandler.fPathProcVaryingInfos[i].fVariable.c_str()));
fVaryingHandler.fPathProcVaryingInfos[i].fLocation = location;
}
}
void GrGLProgramBuilder::cleanupProgram(GrGLuint programID, const SkTDArray<GrGLuint>& shaderIDs) {
GL_CALL(DeleteProgram(programID));
this->cleanupShaders(shaderIDs);
this->cleanupFragmentProcessors();
}
void GrGLProgramBuilder::cleanupShaders(const SkTDArray<GrGLuint>& shaderIDs) {
for (int i = 0; i < shaderIDs.count(); ++i) {
GL_CALL(DeleteShader(shaderIDs[i]));
}
}
GrGLProgram* GrGLProgramBuilder::createProgram(GrGLuint programID) {
return new GrGLProgram(fGpu,
this->desc(),
fUniformHandles,
programID,
fUniformHandler.fUniforms,
fUniformHandler.fSamplers,
fVaryingHandler.fPathProcVaryingInfos,
fGeometryProcessor,
fXferProcessor,
fFragmentProcessors);
}
|
