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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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