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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 | 7 |
8 #include "GrConvolutionEffect.h" | 8 #include "GrConvolutionEffect.h" |
9 #include "gl/GrGLProcessor.h" | 9 #include "gl/GrGLProcessor.h" |
10 #include "gl/GrGLTexture.h" | 10 #include "gl/GrGLTexture.h" |
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147 key <<= 2; | 147 key <<= 2; |
148 if (conv.useBounds()) { | 148 if (conv.useBounds()) { |
149 key |= 0x2; | 149 key |= 0x2; |
150 key |= GrConvolutionEffect::kY_Direction == conv.direction() ? 0x1 : 0x0
; | 150 key |= GrConvolutionEffect::kY_Direction == conv.direction() ? 0x1 : 0x0
; |
151 } | 151 } |
152 b->add32(key); | 152 b->add32(key); |
153 } | 153 } |
154 | 154 |
155 /////////////////////////////////////////////////////////////////////////////// | 155 /////////////////////////////////////////////////////////////////////////////// |
156 | 156 |
157 GrConvolutionEffect::GrConvolutionEffect(GrTexture* texture, | 157 GrConvolutionEffect::GrConvolutionEffect(GrProcessorDataManager* procDataManager
, |
| 158 GrTexture* texture, |
158 Direction direction, | 159 Direction direction, |
159 int radius, | 160 int radius, |
160 const float* kernel, | 161 const float* kernel, |
161 bool useBounds, | 162 bool useBounds, |
162 float bounds[2]) | 163 float bounds[2]) |
163 : Gr1DKernelEffect(texture, direction, radius), fUseBounds(useBounds) { | 164 : INHERITED(procDataManager, texture, direction, radius), fUseBounds(useBoun
ds) { |
164 this->initClassID<GrConvolutionEffect>(); | 165 this->initClassID<GrConvolutionEffect>(); |
165 SkASSERT(radius <= kMaxKernelRadius); | 166 SkASSERT(radius <= kMaxKernelRadius); |
166 SkASSERT(kernel); | 167 SkASSERT(kernel); |
167 int width = this->width(); | 168 int width = this->width(); |
168 for (int i = 0; i < width; i++) { | 169 for (int i = 0; i < width; i++) { |
169 fKernel[i] = kernel[i]; | 170 fKernel[i] = kernel[i]; |
170 } | 171 } |
171 memcpy(fBounds, bounds, sizeof(fBounds)); | 172 memcpy(fBounds, bounds, sizeof(fBounds)); |
172 } | 173 } |
173 | 174 |
174 GrConvolutionEffect::GrConvolutionEffect(GrTexture* texture, | 175 GrConvolutionEffect::GrConvolutionEffect(GrProcessorDataManager* procDataManager
, |
| 176 GrTexture* texture, |
175 Direction direction, | 177 Direction direction, |
176 int radius, | 178 int radius, |
177 float gaussianSigma, | 179 float gaussianSigma, |
178 bool useBounds, | 180 bool useBounds, |
179 float bounds[2]) | 181 float bounds[2]) |
180 : Gr1DKernelEffect(texture, direction, radius), fUseBounds(useBounds) { | 182 : INHERITED(procDataManager, texture, direction, radius), fUseBounds(useBoun
ds) { |
181 this->initClassID<GrConvolutionEffect>(); | 183 this->initClassID<GrConvolutionEffect>(); |
182 SkASSERT(radius <= kMaxKernelRadius); | 184 SkASSERT(radius <= kMaxKernelRadius); |
183 int width = this->width(); | 185 int width = this->width(); |
184 | 186 |
185 float sum = 0.0f; | 187 float sum = 0.0f; |
186 float denom = 1.0f / (2.0f * gaussianSigma * gaussianSigma); | 188 float denom = 1.0f / (2.0f * gaussianSigma * gaussianSigma); |
187 for (int i = 0; i < width; ++i) { | 189 for (int i = 0; i < width; ++i) { |
188 float x = static_cast<float>(i - this->radius()); | 190 float x = static_cast<float>(i - this->radius()); |
189 // Note that the constant term (1/(sqrt(2*pi*sigma^2)) of the Gaussian | 191 // Note that the constant term (1/(sqrt(2*pi*sigma^2)) of the Gaussian |
190 // is dropped here, since we renormalize the kernel below. | 192 // is dropped here, since we renormalize the kernel below. |
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232 float kernel[kMaxKernelWidth]; | 234 float kernel[kMaxKernelWidth]; |
233 for (size_t i = 0; i < SK_ARRAY_COUNT(kernel); ++i) { | 235 for (size_t i = 0; i < SK_ARRAY_COUNT(kernel); ++i) { |
234 kernel[i] = d->fRandom->nextSScalar1(); | 236 kernel[i] = d->fRandom->nextSScalar1(); |
235 } | 237 } |
236 float bounds[2]; | 238 float bounds[2]; |
237 for (size_t i = 0; i < SK_ARRAY_COUNT(bounds); ++i) { | 239 for (size_t i = 0; i < SK_ARRAY_COUNT(bounds); ++i) { |
238 bounds[i] = d->fRandom->nextF(); | 240 bounds[i] = d->fRandom->nextF(); |
239 } | 241 } |
240 | 242 |
241 bool useBounds = d->fRandom->nextBool(); | 243 bool useBounds = d->fRandom->nextBool(); |
242 return GrConvolutionEffect::Create(d->fTextures[texIdx], | 244 return GrConvolutionEffect::Create(d->fProcDataManager, |
| 245 d->fTextures[texIdx], |
243 dir, | 246 dir, |
244 radius, | 247 radius, |
245 kernel, | 248 kernel, |
246 useBounds, | 249 useBounds, |
247 bounds); | 250 bounds); |
248 } | 251 } |
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