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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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213 GrTextureParams::kBilerp_FilterMode)); | 213 GrTextureParams::kBilerp_FilterMode)); |
214 paint.addColorFragmentProcessor(fp); | 214 paint.addColorFragmentProcessor(fp); |
215 } else { | 215 } else { |
216 GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::k
Bilerp_FilterMode); | 216 GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::k
Bilerp_FilterMode); |
217 paint.addColorTextureProcessor(srcTexture, matrix, params); | 217 paint.addColorTextureProcessor(srcTexture, matrix, params); |
218 } | 218 } |
219 scale_rect(&dstRect, i < scaleFactorX ? 0.5f : 1.0f, | 219 scale_rect(&dstRect, i < scaleFactorX ? 0.5f : 1.0f, |
220 i < scaleFactorY ? 0.5f : 1.0f); | 220 i < scaleFactorY ? 0.5f : 1.0f); |
221 | 221 |
222 SkAutoTUnref<GrDrawContext> dstDrawContext( | 222 SkAutoTUnref<GrDrawContext> dstDrawContext( |
223 context->drawContext(dstTexture->as
RenderTarget())); | 223 context->drawingMgr().drawContext(dstTexture->a
sRenderTarget())); |
224 if (!dstDrawContext) { | 224 if (!dstDrawContext) { |
225 return nullptr; | 225 return nullptr; |
226 } | 226 } |
227 dstDrawContext->drawNonAARectToRect(clip, paint, SkMatrix::I(), dstRect,
srcRect); | 227 dstDrawContext->drawNonAARectToRect(clip, paint, SkMatrix::I(), dstRect,
srcRect); |
228 | 228 |
229 srcDrawContext.swap(dstDrawContext); | 229 srcDrawContext.swap(dstDrawContext); |
230 srcRect = dstRect; | 230 srcRect = dstRect; |
231 srcTexture = dstTexture; | 231 srcTexture = dstTexture; |
232 SkTSwap(dstTexture, tempTexture); | 232 SkTSwap(dstTexture, tempTexture); |
233 } | 233 } |
234 | 234 |
235 const SkIRect srcIRect = srcRect.roundOut(); | 235 const SkIRect srcIRect = srcRect.roundOut(); |
236 | 236 |
237 // For really small blurs (certainly no wider than 5x5 on desktop gpus) it i
s faster to just | 237 // For really small blurs (certainly no wider than 5x5 on desktop gpus) it i
s faster to just |
238 // launch a single non separable kernel vs two launches | 238 // launch a single non separable kernel vs two launches |
239 if (sigmaX > 0.0f && sigmaY > 0.0f && | 239 if (sigmaX > 0.0f && sigmaY > 0.0f && |
240 (2 * radiusX + 1) * (2 * radiusY + 1) <= MAX_KERNEL_SIZE) { | 240 (2 * radiusX + 1) * (2 * radiusY + 1) <= MAX_KERNEL_SIZE) { |
241 // We shouldn't be scaling because this is a small size blur | 241 // We shouldn't be scaling because this is a small size blur |
242 SkASSERT((1 == scaleFactorX) && (1 == scaleFactorY)); | 242 SkASSERT((1 == scaleFactorX) && (1 == scaleFactorY)); |
243 SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height()); | 243 SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height()); |
244 | 244 |
245 SkAutoTUnref<GrDrawContext> dstDrawContext( | 245 SkAutoTUnref<GrDrawContext> dstDrawContext( |
246 context->drawContext(dstTexture->as
RenderTarget())); | 246 context->drawingMgr().drawContext(dstTexture->a
sRenderTarget())); |
247 if (!dstDrawContext) { | 247 if (!dstDrawContext) { |
248 return nullptr; | 248 return nullptr; |
249 } | 249 } |
250 convolve_gaussian_2d(dstDrawContext, clip, srcRect, dstRect, | 250 convolve_gaussian_2d(dstDrawContext, clip, srcRect, dstRect, |
251 srcTexture, radiusX, radiusY, sigmaX, sigmaY, cropT
oRect, srcIRect); | 251 srcTexture, radiusX, radiusY, sigmaX, sigmaY, cropT
oRect, srcIRect); |
252 | 252 |
253 srcDrawContext.swap(dstDrawContext); | 253 srcDrawContext.swap(dstDrawContext); |
254 srcRect = dstRect; | 254 srcRect = dstRect; |
255 srcTexture = dstTexture; | 255 srcTexture = dstTexture; |
256 SkTSwap(dstTexture, tempTexture); | 256 SkTSwap(dstTexture, tempTexture); |
257 | 257 |
258 } else { | 258 } else { |
259 if (sigmaX > 0.0f) { | 259 if (sigmaX > 0.0f) { |
260 if (scaleFactorX > 1) { | 260 if (scaleFactorX > 1) { |
261 // TODO: if we pass in the source draw context we don't need thi
s here | 261 // TODO: if we pass in the source draw context we don't need thi
s here |
262 if (!srcDrawContext) { | 262 if (!srcDrawContext) { |
263 srcDrawContext.reset(context->drawContext(srcTexture->asRend
erTarget())); | 263 srcDrawContext.reset( |
| 264 context->drawingMgr().drawContext(srcTexture->as
RenderTarget())); |
264 if (!srcDrawContext) { | 265 if (!srcDrawContext) { |
265 return nullptr; | 266 return nullptr; |
266 } | 267 } |
267 } | 268 } |
268 | 269 |
269 // Clear out a radius to the right of the srcRect to prevent the | 270 // Clear out a radius to the right of the srcRect to prevent the |
270 // X convolution from reading garbage. | 271 // X convolution from reading garbage. |
271 clearRect = SkIRect::MakeXYWH(srcIRect.fRight, srcIRect.fTop, | 272 clearRect = SkIRect::MakeXYWH(srcIRect.fRight, srcIRect.fTop, |
272 radiusX, srcIRect.height()); | 273 radiusX, srcIRect.height()); |
273 srcDrawContext->clear(&clearRect, 0x0, false); | 274 srcDrawContext->clear(&clearRect, 0x0, false); |
274 } | 275 } |
275 SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height()); | 276 SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height()); |
276 | 277 |
277 SkAutoTUnref<GrDrawContext> dstDrawContext( | 278 SkAutoTUnref<GrDrawContext> dstDrawContext( |
278 context->drawContext(dstTexture->asR
enderTarget())); | 279 context->drawingMgr().drawContext(dstTexture->as
RenderTarget())); |
279 if (!dstDrawContext) { | 280 if (!dstDrawContext) { |
280 return nullptr; | 281 return nullptr; |
281 } | 282 } |
282 convolve_gaussian(dstDrawContext, clip, srcRect, dstRect, | 283 convolve_gaussian(dstDrawContext, clip, srcRect, dstRect, |
283 srcTexture, Gr1DKernelEffect::kX_Direction, radius
X, sigmaX, | 284 srcTexture, Gr1DKernelEffect::kX_Direction, radius
X, sigmaX, |
284 cropToRect); | 285 cropToRect); |
285 | 286 |
286 srcDrawContext.swap(dstDrawContext); | 287 srcDrawContext.swap(dstDrawContext); |
287 srcTexture = dstTexture; | 288 srcTexture = dstTexture; |
288 srcRect = dstRect; | 289 srcRect = dstRect; |
289 SkTSwap(dstTexture, tempTexture); | 290 SkTSwap(dstTexture, tempTexture); |
290 } | 291 } |
291 | 292 |
292 if (sigmaY > 0.0f) { | 293 if (sigmaY > 0.0f) { |
293 if (scaleFactorY > 1 || sigmaX > 0.0f) { | 294 if (scaleFactorY > 1 || sigmaX > 0.0f) { |
294 // TODO: if we pass in the source draw context we don't need thi
s here | 295 // TODO: if we pass in the source draw context we don't need thi
s here |
295 if (!srcDrawContext) { | 296 if (!srcDrawContext) { |
296 srcDrawContext.reset(context->drawContext(srcTexture->asRend
erTarget())); | 297 srcDrawContext.reset( |
| 298 context->drawingMgr().drawContext(srcTexture->as
RenderTarget())); |
297 if (!srcDrawContext) { | 299 if (!srcDrawContext) { |
298 return nullptr; | 300 return nullptr; |
299 } | 301 } |
300 } | 302 } |
301 | 303 |
302 // Clear out a radius below the srcRect to prevent the Y | 304 // Clear out a radius below the srcRect to prevent the Y |
303 // convolution from reading garbage. | 305 // convolution from reading garbage. |
304 clearRect = SkIRect::MakeXYWH(srcIRect.fLeft, srcIRect.fBottom, | 306 clearRect = SkIRect::MakeXYWH(srcIRect.fLeft, srcIRect.fBottom, |
305 srcIRect.width(), radiusY); | 307 srcIRect.width(), radiusY); |
306 srcDrawContext->clear(&clearRect, 0x0, false); | 308 srcDrawContext->clear(&clearRect, 0x0, false); |
307 } | 309 } |
308 | 310 |
309 SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height()); | 311 SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height()); |
310 | 312 |
311 SkAutoTUnref<GrDrawContext> dstDrawContext( | 313 SkAutoTUnref<GrDrawContext> dstDrawContext( |
312 context->drawContext(dstTexture->as
RenderTarget())); | 314 context->drawingMgr().drawContext(dstTexture->as
RenderTarget())); |
313 if (!dstDrawContext) { | 315 if (!dstDrawContext) { |
314 return nullptr; | 316 return nullptr; |
315 } | 317 } |
316 convolve_gaussian(dstDrawContext, clip, srcRect, | 318 convolve_gaussian(dstDrawContext, clip, srcRect, |
317 dstRect, srcTexture, Gr1DKernelEffect::kY_Directio
n, radiusY, sigmaY, | 319 dstRect, srcTexture, Gr1DKernelEffect::kY_Directio
n, radiusY, sigmaY, |
318 cropToRect); | 320 cropToRect); |
319 | 321 |
320 srcDrawContext.swap(dstDrawContext); | 322 srcDrawContext.swap(dstDrawContext); |
321 srcTexture = dstTexture; | 323 srcTexture = dstTexture; |
322 srcRect = dstRect; | 324 srcRect = dstRect; |
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340 | 342 |
341 GrPaint paint; | 343 GrPaint paint; |
342 // FIXME: this should be mitchell, not bilinear. | 344 // FIXME: this should be mitchell, not bilinear. |
343 GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::kBile
rp_FilterMode); | 345 GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::kBile
rp_FilterMode); |
344 paint.addColorTextureProcessor(srcTexture, matrix, params); | 346 paint.addColorTextureProcessor(srcTexture, matrix, params); |
345 | 347 |
346 SkRect dstRect(srcRect); | 348 SkRect dstRect(srcRect); |
347 scale_rect(&dstRect, (float) scaleFactorX, (float) scaleFactorY); | 349 scale_rect(&dstRect, (float) scaleFactorX, (float) scaleFactorY); |
348 | 350 |
349 SkAutoTUnref<GrDrawContext> dstDrawContext( | 351 SkAutoTUnref<GrDrawContext> dstDrawContext( |
350 context->drawContext(dstTexture->asR
enderTarget())); | 352 context->drawingMgr().drawContext(dstTexture->as
RenderTarget())); |
351 if (!dstDrawContext) { | 353 if (!dstDrawContext) { |
352 return nullptr; | 354 return nullptr; |
353 } | 355 } |
354 dstDrawContext->drawNonAARectToRect(clip, paint, SkMatrix::I(), dstRect,
srcRect); | 356 dstDrawContext->drawNonAARectToRect(clip, paint, SkMatrix::I(), dstRect,
srcRect); |
355 | 357 |
356 srcDrawContext.swap(dstDrawContext); | 358 srcDrawContext.swap(dstDrawContext); |
357 srcRect = dstRect; | 359 srcRect = dstRect; |
358 srcTexture = dstTexture; | 360 srcTexture = dstTexture; |
359 SkTSwap(dstTexture, tempTexture); | 361 SkTSwap(dstTexture, tempTexture); |
360 } | 362 } |
361 | 363 |
362 return SkRef(srcTexture); | 364 return SkRef(srcTexture); |
363 } | 365 } |
364 #endif | 366 #endif |
365 | 367 |
366 } | 368 } |
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