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
|
/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrBitmapTextGeoProc.h"
#include "GrAtlasedShaderHelpers.h"
#include "GrTexture.h"
#include "glsl/GrGLSLFragmentShaderBuilder.h"
#include "glsl/GrGLSLGeometryProcessor.h"
#include "glsl/GrGLSLProgramDataManager.h"
#include "glsl/GrGLSLUniformHandler.h"
#include "glsl/GrGLSLVarying.h"
#include "glsl/GrGLSLVertexShaderBuilder.h"
class GrGLBitmapTextGeoProc : public GrGLSLGeometryProcessor {
public:
GrGLBitmapTextGeoProc() : fColor(GrColor_ILLEGAL), fAtlasSize({0,0}) {}
void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override {
const GrBitmapTextGeoProc& btgp = args.fGP.cast<GrBitmapTextGeoProc>();
GrGLSLVertexBuilder* vertBuilder = args.fVertBuilder;
GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler;
GrGLSLUniformHandler* uniformHandler = args.fUniformHandler;
// emit attributes
varyingHandler->emitAttributes(btgp);
const char* atlasSizeInvName;
fAtlasSizeInvUniform = uniformHandler->addUniform(kVertex_GrShaderFlag,
kFloat2_GrSLType,
kHigh_GrSLPrecision,
"AtlasSizeInv",
&atlasSizeInvName);
GrGLSLVertToFrag uv(kFloat2_GrSLType);
GrGLSLVertToFrag texIdx(kHalf_GrSLType);
append_index_uv_varyings(args, btgp.inTextureCoords()->fName, atlasSizeInvName,
&uv, &texIdx, nullptr);
GrGLSLPPFragmentBuilder* fragBuilder = args.fFragBuilder;
// Setup pass through color
if (btgp.hasVertexColor()) {
varyingHandler->addPassThroughAttribute(btgp.inColor(), args.fOutputColor);
} else {
this->setupUniformColor(fragBuilder, uniformHandler, args.fOutputColor,
&fColorUniform);
}
// Setup position
this->writeOutputPosition(vertBuilder, gpArgs, btgp.inPosition()->fName);
// emit transforms
this->emitTransforms(vertBuilder,
varyingHandler,
uniformHandler,
gpArgs->fPositionVar,
btgp.inPosition()->fName,
btgp.localMatrix(),
args.fFPCoordTransformHandler);
fragBuilder->codeAppend("half4 texColor;");
append_multitexture_lookup(args, btgp.numTextureSamplers(),
texIdx, uv.fsIn(), "texColor");
if (btgp.maskFormat() == kARGB_GrMaskFormat) {
// modulate by color
fragBuilder->codeAppendf("%s = %s * texColor;", args.fOutputColor, args.fOutputColor);
fragBuilder->codeAppendf("%s = half4(1);", args.fOutputCoverage);
} else {
fragBuilder->codeAppendf("%s = texColor;", args.fOutputCoverage);
}
}
void setData(const GrGLSLProgramDataManager& pdman, const GrPrimitiveProcessor& gp,
FPCoordTransformIter&& transformIter) override {
const GrBitmapTextGeoProc& btgp = gp.cast<GrBitmapTextGeoProc>();
if (btgp.color() != fColor && !btgp.hasVertexColor()) {
float c[4];
GrColorToRGBAFloat(btgp.color(), c);
pdman.set4fv(fColorUniform, 1, c);
fColor = btgp.color();
}
SkASSERT(btgp.numTextureSamplers() >= 1);
GrTexture* atlas = btgp.textureSampler(0).peekTexture();
SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()));
if (fAtlasSize.fWidth != atlas->width() || fAtlasSize.fHeight != atlas->height()) {
pdman.set2f(fAtlasSizeInvUniform, 1.0f / atlas->width(), 1.0f / atlas->height());
fAtlasSize.set(atlas->width(), atlas->height());
}
this->setTransformDataHelper(btgp.localMatrix(), pdman, &transformIter);
}
static inline void GenKey(const GrGeometryProcessor& proc,
const GrShaderCaps&,
GrProcessorKeyBuilder* b) {
const GrBitmapTextGeoProc& btgp = proc.cast<GrBitmapTextGeoProc>();
uint32_t key = 0;
key |= (btgp.usesLocalCoords() && btgp.localMatrix().hasPerspective()) ? 0x1 : 0x0;
key |= btgp.maskFormat() << 1;
b->add32(key);
b->add32(btgp.numTextureSamplers());
}
private:
GrColor fColor;
UniformHandle fColorUniform;
SkISize fAtlasSize;
UniformHandle fAtlasSizeInvUniform;
typedef GrGLSLGeometryProcessor INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
GrBitmapTextGeoProc::GrBitmapTextGeoProc(GrColor color,
const sk_sp<GrTextureProxy> proxies[kMaxTextures],
const GrSamplerState& params, GrMaskFormat format,
const SkMatrix& localMatrix, bool usesLocalCoords)
: fColor(color)
, fLocalMatrix(localMatrix)
, fUsesLocalCoords(usesLocalCoords)
, fInColor(nullptr)
, fMaskFormat(format) {
this->initClassID<GrBitmapTextGeoProc>();
fInPosition =
&this->addVertexAttrib("inPosition", kVec2f_GrVertexAttribType, kHigh_GrSLPrecision);
bool hasVertexColor = kA8_GrMaskFormat == fMaskFormat ||
kA565_GrMaskFormat == fMaskFormat;
if (hasVertexColor) {
fInColor = &this->addVertexAttrib("inColor", kVec4ub_GrVertexAttribType);
}
fInTextureCoords = &this->addVertexAttrib("inTextureCoords", kVec2us_uint_GrVertexAttribType,
kHigh_GrSLPrecision);
for (int i = 0; i < kMaxTextures; ++i) {
if (proxies[i]) {
fTextureSamplers[i].reset(std::move(proxies[i]), params);
this->addTextureSampler(&fTextureSamplers[i]);
}
}
}
void GrBitmapTextGeoProc::addNewProxies(const sk_sp<GrTextureProxy> proxies[kMaxTextures],
const GrSamplerState& params) {
for (int i = 0; i < kMaxTextures; ++i) {
if (proxies[i] && !fTextureSamplers[i].isInitialized()) {
fTextureSamplers[i].reset(std::move(proxies[i]), params);
this->addTextureSampler(&fTextureSamplers[i]);
}
}
}
void GrBitmapTextGeoProc::getGLSLProcessorKey(const GrShaderCaps& caps,
GrProcessorKeyBuilder* b) const {
GrGLBitmapTextGeoProc::GenKey(*this, caps, b);
}
GrGLSLPrimitiveProcessor* GrBitmapTextGeoProc::createGLSLInstance(const GrShaderCaps& caps) const {
return new GrGLBitmapTextGeoProc();
}
///////////////////////////////////////////////////////////////////////////////
GR_DEFINE_GEOMETRY_PROCESSOR_TEST(GrBitmapTextGeoProc);
#if GR_TEST_UTILS
sk_sp<GrGeometryProcessor> GrBitmapTextGeoProc::TestCreate(GrProcessorTestData* d) {
int texIdx = d->fRandom->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx
: GrProcessorUnitTest::kAlphaTextureIdx;
sk_sp<GrTextureProxy> proxies[kMaxTextures] = {
d->textureProxy(texIdx),
nullptr,
nullptr,
nullptr
};
GrSamplerState::WrapMode wrapModes[2];
GrTest::TestWrapModes(d->fRandom, wrapModes);
GrSamplerState samplerState(wrapModes, d->fRandom->nextBool()
? GrSamplerState::Filter::kBilerp
: GrSamplerState::Filter::kNearest);
GrMaskFormat format = kARGB_GrMaskFormat; // init to avoid warning
switch (d->fRandom->nextULessThan(3)) {
case 0:
format = kA8_GrMaskFormat;
break;
case 1:
format = kA565_GrMaskFormat;
break;
case 2:
format = kARGB_GrMaskFormat;
break;
}
return GrBitmapTextGeoProc::Make(GrRandomColor(d->fRandom), proxies, samplerState,
format, GrTest::TestMatrix(d->fRandom),
d->fRandom->nextBool());
}
#endif
|
