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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" |
| (...skipping 136 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 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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