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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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| 53 Gr1DKernelEffect::Direction direction, | 53 Gr1DKernelEffect::Direction direction, |
| 54 int radius, | 54 int radius, |
| 55 float sigma, | 55 float sigma, |
| 56 bool useBounds, | 56 bool useBounds, |
| 57 float bounds[2]) { | 57 float bounds[2]) { |
| 58 GrPaint paint; | 58 GrPaint paint; |
| 59 SkAutoTUnref<GrFragmentProcessor> conv(GrConvolutionEffect::CreateGaussian( | 59 SkAutoTUnref<GrFragmentProcessor> conv(GrConvolutionEffect::CreateGaussian( |
| 60 texture, direction, radius, sigma, useBounds, bounds)); | 60 texture, direction, radius, sigma, useBounds, bounds)); |
| 61 paint.addColorFragmentProcessor(conv); | 61 paint.addColorFragmentProcessor(conv); |
| 62 SkMatrix localMatrix = SkMatrix::MakeTrans(srcOffset.x(), srcOffset.y()); | 62 SkMatrix localMatrix = SkMatrix::MakeTrans(srcOffset.x(), srcOffset.y()); |
| 63 drawContext->drawNonAARectWithLocalMatrix(clip, paint, SkMatrix::I(), dstRec
t, localMatrix); | 63 drawContext->fillRectWithLocalMatrix(clip, paint, SkMatrix::I(), dstRect, lo
calMatrix); |
| 64 } | 64 } |
| 65 | 65 |
| 66 static void convolve_gaussian_2d(GrDrawContext* drawContext, | 66 static void convolve_gaussian_2d(GrDrawContext* drawContext, |
| 67 const GrClip& clip, | 67 const GrClip& clip, |
| 68 const SkRect& srcRect, | 68 const SkRect& srcRect, |
| 69 GrTexture* texture, | 69 GrTexture* texture, |
| 70 int radiusX, | 70 int radiusX, |
| 71 int radiusY, | 71 int radiusY, |
| 72 SkScalar sigmaX, | 72 SkScalar sigmaX, |
| 73 SkScalar sigmaY, | 73 SkScalar sigmaY, |
| 74 bool useBounds, | 74 bool useBounds, |
| 75 SkIRect bounds) { | 75 SkIRect bounds) { |
| 76 SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height()); | 76 SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height()); |
| 77 SkMatrix localMatrix = SkMatrix::MakeTrans(srcRect.x(), srcRect.y()); | 77 SkMatrix localMatrix = SkMatrix::MakeTrans(srcRect.x(), srcRect.y()); |
| 78 SkISize size = SkISize::Make(2 * radiusX + 1, 2 * radiusY + 1); | 78 SkISize size = SkISize::Make(2 * radiusX + 1, 2 * radiusY + 1); |
| 79 SkIPoint kernelOffset = SkIPoint::Make(radiusX, radiusY); | 79 SkIPoint kernelOffset = SkIPoint::Make(radiusX, radiusY); |
| 80 GrPaint paint; | 80 GrPaint paint; |
| 81 SkAutoTUnref<GrFragmentProcessor> conv(GrMatrixConvolutionEffect::CreateGaus
sian( | 81 SkAutoTUnref<GrFragmentProcessor> conv(GrMatrixConvolutionEffect::CreateGaus
sian( |
| 82 texture, bounds, size, 1.0, 0.0, kernelOffset, | 82 texture, bounds, size, 1.0, 0.0, kernelOffset, |
| 83 useBounds ? GrTextureDomain::kClamp_Mode : GrTextureDomain::kIgnore_
Mode, | 83 useBounds ? GrTextureDomain::kClamp_Mode : GrTextureDomain::kIgnore_
Mode, |
| 84 true, sigmaX, sigmaY)); | 84 true, sigmaX, sigmaY)); |
| 85 paint.addColorFragmentProcessor(conv); | 85 paint.addColorFragmentProcessor(conv); |
| 86 drawContext->drawNonAARectWithLocalMatrix(clip, paint, SkMatrix::I(), dstRec
t, localMatrix); | 86 drawContext->fillRectWithLocalMatrix(clip, paint, SkMatrix::I(), dstRect, lo
calMatrix); |
| 87 } | 87 } |
| 88 | 88 |
| 89 static void convolve_gaussian(GrDrawContext* drawContext, | 89 static void convolve_gaussian(GrDrawContext* drawContext, |
| 90 const GrClip& clip, | 90 const GrClip& clip, |
| 91 const SkRect& srcRect, | 91 const SkRect& srcRect, |
| 92 GrTexture* texture, | 92 GrTexture* texture, |
| 93 Gr1DKernelEffect::Direction direction, | 93 Gr1DKernelEffect::Direction direction, |
| 94 int radius, | 94 int radius, |
| 95 float sigma, | 95 float sigma, |
| 96 bool cropToSrcRect) { | 96 bool cropToSrcRect) { |
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| 215 paint.addColorTextureProcessor(srcTexture, matrix, params); | 215 paint.addColorTextureProcessor(srcTexture, matrix, params); |
| 216 } | 216 } |
| 217 scale_rect(&dstRect, i < scaleFactorX ? 0.5f : 1.0f, | 217 scale_rect(&dstRect, i < scaleFactorX ? 0.5f : 1.0f, |
| 218 i < scaleFactorY ? 0.5f : 1.0f); | 218 i < scaleFactorY ? 0.5f : 1.0f); |
| 219 | 219 |
| 220 SkAutoTUnref<GrDrawContext> dstDrawContext( | 220 SkAutoTUnref<GrDrawContext> dstDrawContext( |
| 221 context->drawContext(dstTexture->as
RenderTarget())); | 221 context->drawContext(dstTexture->as
RenderTarget())); |
| 222 if (!dstDrawContext) { | 222 if (!dstDrawContext) { |
| 223 return nullptr; | 223 return nullptr; |
| 224 } | 224 } |
| 225 dstDrawContext->drawNonAARectToRect(clip, paint, SkMatrix::I(), dstRect,
srcRect); | 225 dstDrawContext->fillRectToRect(clip, paint, SkMatrix::I(), dstRect, srcR
ect); |
| 226 | 226 |
| 227 srcDrawContext.swap(dstDrawContext); | 227 srcDrawContext.swap(dstDrawContext); |
| 228 srcRect = dstRect; | 228 srcRect = dstRect; |
| 229 srcTexture = dstTexture; | 229 srcTexture = dstTexture; |
| 230 SkTSwap(dstTexture, tempTexture); | 230 SkTSwap(dstTexture, tempTexture); |
| 231 } | 231 } |
| 232 | 232 |
| 233 const SkIRect srcIRect = srcRect.roundOut(); | 233 const SkIRect srcIRect = srcRect.roundOut(); |
| 234 | 234 |
| 235 // For really small blurs (certainly no wider than 5x5 on desktop gpus) it i
s faster to just | 235 // For really small blurs (certainly no wider than 5x5 on desktop gpus) it i
s faster to just |
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| 338 paint.addColorTextureProcessor(srcTexture, matrix, params); | 338 paint.addColorTextureProcessor(srcTexture, matrix, params); |
| 339 | 339 |
| 340 SkRect dstRect(srcRect); | 340 SkRect dstRect(srcRect); |
| 341 scale_rect(&dstRect, (float) scaleFactorX, (float) scaleFactorY); | 341 scale_rect(&dstRect, (float) scaleFactorX, (float) scaleFactorY); |
| 342 | 342 |
| 343 SkAutoTUnref<GrDrawContext> dstDrawContext( | 343 SkAutoTUnref<GrDrawContext> dstDrawContext( |
| 344 context->drawContext(dstTexture->asRenderTarget(
))); | 344 context->drawContext(dstTexture->asRenderTarget(
))); |
| 345 if (!dstDrawContext) { | 345 if (!dstDrawContext) { |
| 346 return nullptr; | 346 return nullptr; |
| 347 } | 347 } |
| 348 dstDrawContext->drawNonAARectToRect(clip, paint, SkMatrix::I(), dstRect,
srcRect); | 348 dstDrawContext->fillRectToRect(clip, paint, SkMatrix::I(), dstRect, srcR
ect); |
| 349 | 349 |
| 350 srcDrawContext.swap(dstDrawContext); | 350 srcDrawContext.swap(dstDrawContext); |
| 351 srcRect = dstRect; | 351 srcRect = dstRect; |
| 352 srcTexture = dstTexture; | 352 srcTexture = dstTexture; |
| 353 SkTSwap(dstTexture, tempTexture); | 353 SkTSwap(dstTexture, tempTexture); |
| 354 } | 354 } |
| 355 | 355 |
| 356 return SkRef(srcTexture); | 356 return SkRef(srcTexture); |
| 357 } | 357 } |
| 358 #endif | 358 #endif |
| 359 | 359 |
| 360 } | 360 } |
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