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1 /* | 1 /* |
2 * Copyright 2012 The Android Open Source Project | 2 * Copyright 2012 The Android Open Source Project |
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 "SkBitmap.h" | 8 #include "SkBitmap.h" |
9 #include "SkMagnifierImageFilter.h" | 9 #include "SkMagnifierImageFilter.h" |
10 #include "SkColorPriv.h" | 10 #include "SkColorPriv.h" |
11 #include "SkFlattenableBuffers.h" | 11 #include "SkFlattenableBuffers.h" |
| 12 #include "SkValidationUtils.h" |
12 | 13 |
13 //////////////////////////////////////////////////////////////////////////////// | 14 //////////////////////////////////////////////////////////////////////////////// |
14 #if SK_SUPPORT_GPU | 15 #if SK_SUPPORT_GPU |
15 #include "effects/GrSingleTextureEffect.h" | 16 #include "effects/GrSingleTextureEffect.h" |
16 #include "gl/GrGLEffect.h" | 17 #include "gl/GrGLEffect.h" |
17 #include "gl/GrGLSL.h" | 18 #include "gl/GrGLSL.h" |
18 #include "gl/GrGLTexture.h" | 19 #include "gl/GrGLTexture.h" |
19 #include "GrTBackendEffectFactory.h" | 20 #include "GrTBackendEffectFactory.h" |
20 | 21 |
21 class GrGLMagnifierEffect; | 22 class GrGLMagnifierEffect; |
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229 | 230 |
230 //////////////////////////////////////////////////////////////////////////////// | 231 //////////////////////////////////////////////////////////////////////////////// |
231 SkMagnifierImageFilter::SkMagnifierImageFilter(SkFlattenableReadBuffer& buffer) | 232 SkMagnifierImageFilter::SkMagnifierImageFilter(SkFlattenableReadBuffer& buffer) |
232 : INHERITED(buffer) { | 233 : INHERITED(buffer) { |
233 float x = buffer.readScalar(); | 234 float x = buffer.readScalar(); |
234 float y = buffer.readScalar(); | 235 float y = buffer.readScalar(); |
235 float width = buffer.readScalar(); | 236 float width = buffer.readScalar(); |
236 float height = buffer.readScalar(); | 237 float height = buffer.readScalar(); |
237 fSrcRect = SkRect::MakeXYWH(x, y, width, height); | 238 fSrcRect = SkRect::MakeXYWH(x, y, width, height); |
238 fInset = buffer.readScalar(); | 239 fInset = buffer.readScalar(); |
| 240 |
| 241 buffer.validate(SkIsValidRect(fSrcRect) && SkScalarIsFinite(fInset)); |
239 } | 242 } |
240 | 243 |
241 // FIXME: implement single-input semantics | 244 // FIXME: implement single-input semantics |
242 SkMagnifierImageFilter::SkMagnifierImageFilter(SkRect srcRect, SkScalar inset) | 245 SkMagnifierImageFilter::SkMagnifierImageFilter(SkRect srcRect, SkScalar inset) |
243 : INHERITED(0), fSrcRect(srcRect), fInset(inset) { | 246 : INHERITED(0), fSrcRect(srcRect), fInset(inset) { |
244 SkASSERT(srcRect.x() >= 0 && srcRect.y() >= 0 && inset >= 0); | 247 SkASSERT(srcRect.x() >= 0 && srcRect.y() >= 0 && inset >= 0); |
245 } | 248 } |
246 | 249 |
247 #if SK_SUPPORT_GPU | 250 #if SK_SUPPORT_GPU |
248 bool SkMagnifierImageFilter::asNewEffect(GrEffectRef** effect, GrTexture* textur
e, const SkMatrix&) const { | 251 bool SkMagnifierImageFilter::asNewEffect(GrEffectRef** effect, GrTexture* textur
e, const SkMatrix&) const { |
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326 | 329 |
327 int x_val = SkMin32(SkScalarFloorToInt(x_interp), width - 1); | 330 int x_val = SkMin32(SkScalarFloorToInt(x_interp), width - 1); |
328 int y_val = SkMin32(SkScalarFloorToInt(y_interp), height - 1); | 331 int y_val = SkMin32(SkScalarFloorToInt(y_interp), height - 1); |
329 | 332 |
330 *dptr = sptr[y_val * width + x_val]; | 333 *dptr = sptr[y_val * width + x_val]; |
331 dptr++; | 334 dptr++; |
332 } | 335 } |
333 } | 336 } |
334 return true; | 337 return true; |
335 } | 338 } |
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