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1 /* | 1 /* |
2 * Copyright 2012 The Android Open Source Project | 2 * Copyright 2012 The Android Open Source Project |
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 "SkImageFilter.h" | 8 #include "SkImageFilter.h" |
9 | 9 |
10 #include "SkBitmap.h" | 10 #include "SkBitmap.h" |
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141 | 141 |
142 bool SkImageFilter::canFilterImageGPU() const { | 142 bool SkImageFilter::canFilterImageGPU() const { |
143 return this->asNewEffect(NULL, NULL, SkMatrix::I(), SkIRect()); | 143 return this->asNewEffect(NULL, NULL, SkMatrix::I(), SkIRect()); |
144 } | 144 } |
145 | 145 |
146 bool SkImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const SkMa trix& ctm, | 146 bool SkImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const SkMa trix& ctm, |
147 SkBitmap* result, SkIPoint* offset) { | 147 SkBitmap* result, SkIPoint* offset) { |
148 #if SK_SUPPORT_GPU | 148 #if SK_SUPPORT_GPU |
149 SkBitmap input; | 149 SkBitmap input; |
150 SkASSERT(fInputCount == 1); | 150 SkASSERT(fInputCount == 1); |
151 if (!SkImageFilterUtils::GetInputResultGPU(this->getInput(0), proxy, src, ct m, &input, offset)) { | 151 SkIPoint srcOffset = SkIPoint::Make(0, 0); |
152 if (!SkImageFilterUtils::GetInputResultGPU(this->getInput(0), proxy, src, ct m, &input, &srcOffset)) { | |
bsalomon
2014/02/03 21:31:08
if all the callers now pass a non-NULL value maybe
| |
152 return false; | 153 return false; |
153 } | 154 } |
154 GrTexture* srcTexture = input.getTexture(); | 155 GrTexture* srcTexture = input.getTexture(); |
155 SkIRect bounds; | 156 SkIRect bounds; |
156 src.getBounds(&bounds); | 157 src.getBounds(&bounds); |
158 bounds.offset(srcOffset); | |
157 if (!this->applyCropRect(&bounds, ctm)) { | 159 if (!this->applyCropRect(&bounds, ctm)) { |
158 return false; | 160 return false; |
159 } | 161 } |
160 SkRect srcRect = SkRect::Make(bounds); | 162 SkRect srcRect = SkRect::Make(bounds); |
161 SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height()); | 163 SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height()); |
162 GrContext* context = srcTexture->getContext(); | 164 GrContext* context = srcTexture->getContext(); |
163 | 165 |
164 GrTextureDesc desc; | 166 GrTextureDesc desc; |
165 desc.fFlags = kRenderTarget_GrTextureFlagBit, | 167 desc.fFlags = kRenderTarget_GrTextureFlagBit, |
166 desc.fWidth = bounds.width(); | 168 desc.fWidth = bounds.width(); |
167 desc.fHeight = bounds.height(); | 169 desc.fHeight = bounds.height(); |
168 desc.fConfig = kRGBA_8888_GrPixelConfig; | 170 desc.fConfig = kRGBA_8888_GrPixelConfig; |
169 | 171 |
170 GrAutoScratchTexture dst(context, desc); | 172 GrAutoScratchTexture dst(context, desc); |
171 GrContext::AutoMatrix am; | 173 GrContext::AutoMatrix am; |
172 am.setIdentity(context); | 174 am.setIdentity(context); |
173 GrContext::AutoRenderTarget art(context, dst.texture()->asRenderTarget()); | 175 GrContext::AutoRenderTarget art(context, dst.texture()->asRenderTarget()); |
174 GrContext::AutoClip acs(context, dstRect); | 176 GrContext::AutoClip acs(context, dstRect); |
175 GrEffectRef* effect; | 177 GrEffectRef* effect; |
178 offset->fX = bounds.left(); | |
179 offset->fY = bounds.top(); | |
180 bounds.offset(-srcOffset); | |
176 SkMatrix matrix(ctm); | 181 SkMatrix matrix(ctm); |
177 matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.to p())); | 182 matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.to p())); |
178 this->asNewEffect(&effect, srcTexture, matrix, bounds); | 183 this->asNewEffect(&effect, srcTexture, matrix, bounds); |
179 SkASSERT(effect); | 184 SkASSERT(effect); |
180 SkAutoUnref effectRef(effect); | 185 SkAutoUnref effectRef(effect); |
181 GrPaint paint; | 186 GrPaint paint; |
182 paint.addColorEffect(effect); | 187 paint.addColorEffect(effect); |
183 context->drawRectToRect(paint, dstRect, srcRect); | 188 context->drawRectToRect(paint, dstRect, srcRect); |
184 | 189 |
185 SkAutoTUnref<GrTexture> resultTex(dst.detach()); | 190 SkAutoTUnref<GrTexture> resultTex(dst.detach()); |
186 SkImageFilterUtils::WrapTexture(resultTex, bounds.width(), bounds.height(), result); | 191 SkImageFilterUtils::WrapTexture(resultTex, bounds.width(), bounds.height(), result); |
187 offset->fX += bounds.left(); | |
188 offset->fY += bounds.top(); | |
189 return true; | 192 return true; |
190 #else | 193 #else |
191 return false; | 194 return false; |
192 #endif | 195 #endif |
193 } | 196 } |
194 | 197 |
195 bool SkImageFilter::applyCropRect(SkIRect* rect, const SkMatrix& matrix) const { | 198 bool SkImageFilter::applyCropRect(SkIRect* rect, const SkMatrix& matrix) const { |
196 SkRect cropRect; | 199 SkRect cropRect; |
197 matrix.mapRect(&cropRect, fCropRect.rect()); | 200 matrix.mapRect(&cropRect, fCropRect.rect()); |
198 SkIRect cropRectI; | 201 SkIRect cropRectI; |
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212 return true; | 215 return true; |
213 } | 216 } |
214 | 217 |
215 bool SkImageFilter::asNewEffect(GrEffectRef**, GrTexture*, const SkMatrix&, cons t SkIRect&) const { | 218 bool SkImageFilter::asNewEffect(GrEffectRef**, GrTexture*, const SkMatrix&, cons t SkIRect&) const { |
216 return false; | 219 return false; |
217 } | 220 } |
218 | 221 |
219 bool SkImageFilter::asColorFilter(SkColorFilter**) const { | 222 bool SkImageFilter::asColorFilter(SkColorFilter**) const { |
220 return false; | 223 return false; |
221 } | 224 } |
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