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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 "SkAlphaThresholdFilter.h" | 8 #include "SkAlphaThresholdFilter.h" |
9 #include "SkBitmap.h" | 9 #include "SkBitmap.h" |
10 #include "SkReadBuffer.h" | 10 #include "SkReadBuffer.h" |
11 #include "SkWriteBuffer.h" | 11 #include "SkWriteBuffer.h" |
12 #include "SkRegion.h" | 12 #include "SkRegion.h" |
| 13 #if SK_SUPPORT_GPU |
| 14 #include "GrDrawContext.h" |
| 15 #endif |
13 | 16 |
14 class SK_API SkAlphaThresholdFilterImpl : public SkImageFilter { | 17 class SK_API SkAlphaThresholdFilterImpl : public SkImageFilter { |
15 public: | 18 public: |
16 SkAlphaThresholdFilterImpl(const SkRegion& region, SkScalar innerThreshold, | 19 SkAlphaThresholdFilterImpl(const SkRegion& region, SkScalar innerThreshold, |
17 SkScalar outerThreshold, SkImageFilter* input); | 20 SkScalar outerThreshold, SkImageFilter* input); |
18 | 21 |
19 SK_TO_STRING_OVERRIDE() | 22 SK_TO_STRING_OVERRIDE() |
20 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkAlphaThresholdFilterIm
pl) | 23 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkAlphaThresholdFilterIm
pl) |
21 | 24 |
22 protected: | 25 protected: |
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277 // Add one pixel of border to ensure that clamp mode will be all zeros | 280 // Add one pixel of border to ensure that clamp mode will be all zeros |
278 // the outside. | 281 // the outside. |
279 maskDesc.fWidth = texture->width(); | 282 maskDesc.fWidth = texture->width(); |
280 maskDesc.fHeight = texture->height(); | 283 maskDesc.fHeight = texture->height(); |
281 SkAutoTUnref<GrTexture> maskTexture(context->textureProvider()->refScrat
chTexture( | 284 SkAutoTUnref<GrTexture> maskTexture(context->textureProvider()->refScrat
chTexture( |
282 maskDesc, GrTextureProvider::kApprox_ScratchTexMatch)); | 285 maskDesc, GrTextureProvider::kApprox_ScratchTexMatch)); |
283 if (!maskTexture) { | 286 if (!maskTexture) { |
284 return false; | 287 return false; |
285 } | 288 } |
286 | 289 |
287 { | 290 GrDrawContext* drawContext = context->drawContext(); |
| 291 if (drawContext) { |
288 GrPaint grPaint; | 292 GrPaint grPaint; |
289 grPaint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode); | 293 grPaint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode); |
290 SkRegion::Iterator iter(fRegion); | 294 SkRegion::Iterator iter(fRegion); |
291 context->clear(NULL, 0x0, true, maskTexture->asRenderTarget()); | 295 drawContext->clear(maskTexture->asRenderTarget(), NULL, 0x0, true); |
292 | 296 |
293 while (!iter.done()) { | 297 while (!iter.done()) { |
294 SkRect rect = SkRect::Make(iter.rect()); | 298 SkRect rect = SkRect::Make(iter.rect()); |
295 context->drawRect(maskTexture->asRenderTarget(), GrClip::WideOpe
n(), grPaint, | 299 drawContext->drawRect(maskTexture->asRenderTarget(), GrClip::Wid
eOpen(), grPaint, |
296 in_matrix, rect); | 300 in_matrix, rect); |
297 iter.next(); | 301 iter.next(); |
298 } | 302 } |
299 } | 303 } |
300 | 304 |
301 *fp = AlphaThresholdEffect::Create(texture, | 305 *fp = AlphaThresholdEffect::Create(texture, |
302 maskTexture, | 306 maskTexture, |
303 fInnerThreshold, | 307 fInnerThreshold, |
304 fOuterThreshold); | 308 fOuterThreshold); |
305 } | 309 } |
306 return true; | 310 return true; |
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377 } | 381 } |
378 | 382 |
379 #ifndef SK_IGNORE_TO_STRING | 383 #ifndef SK_IGNORE_TO_STRING |
380 void SkAlphaThresholdFilterImpl::toString(SkString* str) const { | 384 void SkAlphaThresholdFilterImpl::toString(SkString* str) const { |
381 str->appendf("SkAlphaThresholdImageFilter: ("); | 385 str->appendf("SkAlphaThresholdImageFilter: ("); |
382 str->appendf("inner: %f outer: %f", fInnerThreshold, fOuterThreshold); | 386 str->appendf("inner: %f outer: %f", fInnerThreshold, fOuterThreshold); |
383 str->append(")"); | 387 str->append(")"); |
384 } | 388 } |
385 #endif | 389 #endif |
386 | 390 |
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