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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 #include "GrMatrixConvolutionEffect.h" | 7 #include "GrMatrixConvolutionEffect.h" |
8 #include "gl/GrGLProcessor.h" | 8 #include "gl/GrGLProcessor.h" |
9 #include "gl/GrGLTexture.h" | 9 #include "gl/GrGLTexture.h" |
10 #include "gl/builders/GrGLProgramBuilder.h" | 10 #include "gl/builders/GrGLProgramBuilder.h" |
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131 imageIncrement[0] = 1.0f / texture.width(); | 131 imageIncrement[0] = 1.0f / texture.width(); |
132 imageIncrement[1] = ySign / texture.height(); | 132 imageIncrement[1] = ySign / texture.height(); |
133 pdman.set2fv(fImageIncrementUni, 1, imageIncrement); | 133 pdman.set2fv(fImageIncrementUni, 1, imageIncrement); |
134 pdman.set2fv(fKernelOffsetUni, 1, conv.kernelOffset()); | 134 pdman.set2fv(fKernelOffsetUni, 1, conv.kernelOffset()); |
135 pdman.set1fv(fKernelUni, fKernelSize.width() * fKernelSize.height(), conv.ke
rnel()); | 135 pdman.set1fv(fKernelUni, fKernelSize.width() * fKernelSize.height(), conv.ke
rnel()); |
136 pdman.set1f(fGainUni, conv.gain()); | 136 pdman.set1f(fGainUni, conv.gain()); |
137 pdman.set1f(fBiasUni, conv.bias()); | 137 pdman.set1f(fBiasUni, conv.bias()); |
138 fDomain.setData(pdman, conv.domain(), texture.origin()); | 138 fDomain.setData(pdman, conv.domain(), texture.origin()); |
139 } | 139 } |
140 | 140 |
141 GrMatrixConvolutionEffect::GrMatrixConvolutionEffect(GrTexture* texture, | 141 GrMatrixConvolutionEffect::GrMatrixConvolutionEffect(GrProcessorDataManager* pro
cDataManager, |
| 142 GrTexture* texture, |
142 const SkIRect& bounds, | 143 const SkIRect& bounds, |
143 const SkISize& kernelSize, | 144 const SkISize& kernelSize, |
144 const SkScalar* kernel, | 145 const SkScalar* kernel, |
145 SkScalar gain, | 146 SkScalar gain, |
146 SkScalar bias, | 147 SkScalar bias, |
147 const SkIPoint& kernelOffse
t, | 148 const SkIPoint& kernelOffse
t, |
148 GrTextureDomain::Mode tileM
ode, | 149 GrTextureDomain::Mode tileM
ode, |
149 bool convolveAlpha) | 150 bool convolveAlpha) |
150 : INHERITED(texture, GrCoordTransform::MakeDivByTextureWHMatrix(texture)), | 151 : INHERITED(procDataManager, texture, GrCoordTransform::MakeDivByTextureWHMatr
ix(texture)), |
151 fKernelSize(kernelSize), | 152 fKernelSize(kernelSize), |
152 fGain(SkScalarToFloat(gain)), | 153 fGain(SkScalarToFloat(gain)), |
153 fBias(SkScalarToFloat(bias) / 255.0f), | 154 fBias(SkScalarToFloat(bias) / 255.0f), |
154 fConvolveAlpha(convolveAlpha), | 155 fConvolveAlpha(convolveAlpha), |
155 fDomain(GrTextureDomain::MakeTexelDomainForMode(texture, bounds, tileMode),
tileMode) { | 156 fDomain(GrTextureDomain::MakeTexelDomainForMode(texture, bounds, tileMode),
tileMode) { |
156 this->initClassID<GrMatrixConvolutionEffect>(); | 157 this->initClassID<GrMatrixConvolutionEffect>(); |
157 for (int i = 0; i < kernelSize.width() * kernelSize.height(); i++) { | 158 for (int i = 0; i < kernelSize.width() * kernelSize.height(); i++) { |
158 fKernel[i] = SkScalarToFloat(kernel[i]); | 159 fKernel[i] = SkScalarToFloat(kernel[i]); |
159 } | 160 } |
160 fKernelOffset[0] = static_cast<float>(kernelOffset.x()); | 161 fKernelOffset[0] = static_cast<float>(kernelOffset.x()); |
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180 fKernelSize.width() * fKernelSize.height() * sizeof(float)) &
& | 181 fKernelSize.width() * fKernelSize.height() * sizeof(float)) &
& |
181 fGain == s.gain() && | 182 fGain == s.gain() && |
182 fBias == s.bias() && | 183 fBias == s.bias() && |
183 fKernelOffset == s.kernelOffset() && | 184 fKernelOffset == s.kernelOffset() && |
184 fConvolveAlpha == s.convolveAlpha() && | 185 fConvolveAlpha == s.convolveAlpha() && |
185 fDomain == s.domain(); | 186 fDomain == s.domain(); |
186 } | 187 } |
187 | 188 |
188 // Static function to create a 2D convolution | 189 // Static function to create a 2D convolution |
189 GrFragmentProcessor* | 190 GrFragmentProcessor* |
190 GrMatrixConvolutionEffect::CreateGaussian(GrTexture* texture, | 191 GrMatrixConvolutionEffect::CreateGaussian(GrProcessorDataManager* procDataManage
r, |
| 192 GrTexture* texture, |
191 const SkIRect& bounds, | 193 const SkIRect& bounds, |
192 const SkISize& kernelSize, | 194 const SkISize& kernelSize, |
193 SkScalar gain, | 195 SkScalar gain, |
194 SkScalar bias, | 196 SkScalar bias, |
195 const SkIPoint& kernelOffset, | 197 const SkIPoint& kernelOffset, |
196 GrTextureDomain::Mode tileMode, | 198 GrTextureDomain::Mode tileMode, |
197 bool convolveAlpha, | 199 bool convolveAlpha, |
198 SkScalar sigmaX, | 200 SkScalar sigmaX, |
199 SkScalar sigmaY) { | 201 SkScalar sigmaY) { |
200 float kernel[MAX_KERNEL_SIZE]; | 202 float kernel[MAX_KERNEL_SIZE]; |
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216 // is dropped here, since we renormalize the kernel below. | 218 // is dropped here, since we renormalize the kernel below. |
217 kernel[y * width + x] = xyTerm; | 219 kernel[y * width + x] = xyTerm; |
218 sum += xyTerm; | 220 sum += xyTerm; |
219 } | 221 } |
220 } | 222 } |
221 // Normalize the kernel | 223 // Normalize the kernel |
222 float scale = 1.0f / sum; | 224 float scale = 1.0f / sum; |
223 for (int i = 0; i < width * height; ++i) { | 225 for (int i = 0; i < width * height; ++i) { |
224 kernel[i] *= scale; | 226 kernel[i] *= scale; |
225 } | 227 } |
226 return SkNEW_ARGS(GrMatrixConvolutionEffect, (texture, | 228 return SkNEW_ARGS(GrMatrixConvolutionEffect, (procDataManager, |
| 229 texture, |
227 bounds, | 230 bounds, |
228 kernelSize, | 231 kernelSize, |
229 kernel, | 232 kernel, |
230 gain, | 233 gain, |
231 bias, | 234 bias, |
232 kernelOffset, | 235 kernelOffset, |
233 tileMode, | 236 tileMode, |
234 convolveAlpha)); | 237 convolveAlpha)); |
235 } | 238 } |
236 | 239 |
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250 SkScalar bias = d->fRandom->nextSScalar1(); | 253 SkScalar bias = d->fRandom->nextSScalar1(); |
251 SkIPoint kernelOffset = SkIPoint::Make(d->fRandom->nextRangeU(0, kernelSize.
width()), | 254 SkIPoint kernelOffset = SkIPoint::Make(d->fRandom->nextRangeU(0, kernelSize.
width()), |
252 d->fRandom->nextRangeU(0, kernelSize.
height())); | 255 d->fRandom->nextRangeU(0, kernelSize.
height())); |
253 SkIRect bounds = SkIRect::MakeXYWH(d->fRandom->nextRangeU(0, d->fTextures[te
xIdx]->width()), | 256 SkIRect bounds = SkIRect::MakeXYWH(d->fRandom->nextRangeU(0, d->fTextures[te
xIdx]->width()), |
254 d->fRandom->nextRangeU(0, d->fTextures[te
xIdx]->height()), | 257 d->fRandom->nextRangeU(0, d->fTextures[te
xIdx]->height()), |
255 d->fRandom->nextRangeU(0, d->fTextures[te
xIdx]->width()), | 258 d->fRandom->nextRangeU(0, d->fTextures[te
xIdx]->width()), |
256 d->fRandom->nextRangeU(0, d->fTextures[te
xIdx]->height())); | 259 d->fRandom->nextRangeU(0, d->fTextures[te
xIdx]->height())); |
257 GrTextureDomain::Mode tileMode = | 260 GrTextureDomain::Mode tileMode = |
258 static_cast<GrTextureDomain::Mode>(d->fRandom->nextRangeU(0, 2)); | 261 static_cast<GrTextureDomain::Mode>(d->fRandom->nextRangeU(0, 2)); |
259 bool convolveAlpha = d->fRandom->nextBool(); | 262 bool convolveAlpha = d->fRandom->nextBool(); |
260 return GrMatrixConvolutionEffect::Create(d->fTextures[texIdx], | 263 return GrMatrixConvolutionEffect::Create(d->fProcDataManager, |
| 264 d->fTextures[texIdx], |
261 bounds, | 265 bounds, |
262 kernelSize, | 266 kernelSize, |
263 kernel.get(), | 267 kernel.get(), |
264 gain, | 268 gain, |
265 bias, | 269 bias, |
266 kernelOffset, | 270 kernelOffset, |
267 tileMode, | 271 tileMode, |
268 convolveAlpha); | 272 convolveAlpha); |
269 } | 273 } |
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