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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 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 "SkGpuBlurUtils.h" | 8 #include "SkGpuBlurUtils.h" |
9 | 9 |
10 #include "SkRect.h" | 10 #include "SkRect.h" |
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160 direction, radius, sigma, false, bounds); | 160 direction, radius, sigma, false, bounds); |
161 } | 161 } |
162 } | 162 } |
163 | 163 |
164 GrTexture* GaussianBlur(GrContext* context, | 164 GrTexture* GaussianBlur(GrContext* context, |
165 GrTexture* srcTexture, | 165 GrTexture* srcTexture, |
166 bool canClobberSrc, | 166 bool canClobberSrc, |
167 const SkRect& dstBounds, | 167 const SkRect& dstBounds, |
168 const SkRect* srcBounds, | 168 const SkRect* srcBounds, |
169 float sigmaX, | 169 float sigmaX, |
170 float sigmaY, | 170 float sigmaY) { |
171 GrTextureProvider::SizeConstraint constraint) { | |
172 SkASSERT(context); | 171 SkASSERT(context); |
173 SkIRect clearRect; | 172 SkIRect clearRect; |
174 int scaleFactorX, radiusX; | 173 int scaleFactorX, radiusX; |
175 int scaleFactorY, radiusY; | 174 int scaleFactorY, radiusY; |
176 int maxTextureSize = context->caps()->maxTextureSize(); | 175 int maxTextureSize = context->caps()->maxTextureSize(); |
177 sigmaX = adjust_sigma(sigmaX, maxTextureSize, &scaleFactorX, &radiusX); | 176 sigmaX = adjust_sigma(sigmaX, maxTextureSize, &scaleFactorX, &radiusX); |
178 sigmaY = adjust_sigma(sigmaY, maxTextureSize, &scaleFactorY, &radiusY); | 177 sigmaY = adjust_sigma(sigmaY, maxTextureSize, &scaleFactorY, &radiusY); |
179 | 178 |
180 SkPoint srcOffset = SkPoint::Make(-dstBounds.x(), -dstBounds.y()); | 179 SkPoint srcOffset = SkPoint::Make(-dstBounds.x(), -dstBounds.y()); |
181 SkRect localDstBounds = SkRect::MakeWH(dstBounds.width(), dstBounds.height()
); | 180 SkRect localDstBounds = SkRect::MakeWH(dstBounds.width(), dstBounds.height()
); |
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204 GrSurfaceDesc desc; | 203 GrSurfaceDesc desc; |
205 desc.fFlags = kRenderTarget_GrSurfaceFlag; | 204 desc.fFlags = kRenderTarget_GrSurfaceFlag; |
206 desc.fWidth = SkScalarFloorToInt(dstBounds.width()); | 205 desc.fWidth = SkScalarFloorToInt(dstBounds.width()); |
207 desc.fHeight = SkScalarFloorToInt(dstBounds.height()); | 206 desc.fHeight = SkScalarFloorToInt(dstBounds.height()); |
208 desc.fConfig = srcTexture->config(); | 207 desc.fConfig = srcTexture->config(); |
209 | 208 |
210 GrTexture* dstTexture; | 209 GrTexture* dstTexture; |
211 GrTexture* tempTexture; | 210 GrTexture* tempTexture; |
212 SkAutoTUnref<GrTexture> temp1, temp2; | 211 SkAutoTUnref<GrTexture> temp1, temp2; |
213 | 212 |
214 temp1.reset(context->textureProvider()->createTexture(desc, constraint)); | 213 temp1.reset(context->textureProvider()->createApproxTexture(desc)); |
215 dstTexture = temp1.get(); | 214 dstTexture = temp1.get(); |
216 if (canClobberSrc) { | 215 if (canClobberSrc) { |
217 tempTexture = srcTexture; | 216 tempTexture = srcTexture; |
218 } else { | 217 } else { |
219 temp2.reset(context->textureProvider()->createTexture(desc, constraint))
; | 218 temp2.reset(context->textureProvider()->createApproxTexture(desc)); |
220 tempTexture = temp2.get(); | 219 tempTexture = temp2.get(); |
221 } | 220 } |
222 | 221 |
223 if (nullptr == dstTexture || nullptr == tempTexture) { | 222 if (nullptr == dstTexture || nullptr == tempTexture) { |
224 return nullptr; | 223 return nullptr; |
225 } | 224 } |
226 | 225 |
227 SkAutoTUnref<GrDrawContext> srcDrawContext; | 226 SkAutoTUnref<GrDrawContext> srcDrawContext; |
228 | 227 |
229 for (int i = 1; i < scaleFactorX || i < scaleFactorY; i *= 2) { | 228 for (int i = 1; i < scaleFactorX || i < scaleFactorY; i *= 2) { |
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393 srcRect = dstRect; | 392 srcRect = dstRect; |
394 srcTexture = dstTexture; | 393 srcTexture = dstTexture; |
395 SkTSwap(dstTexture, tempTexture); | 394 SkTSwap(dstTexture, tempTexture); |
396 } | 395 } |
397 | 396 |
398 return SkRef(srcTexture); | 397 return SkRef(srcTexture); |
399 } | 398 } |
400 #endif | 399 #endif |
401 | 400 |
402 } | 401 } |
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