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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" |
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316 if (!ctx.ctm().invert(&localInverse)) { | 316 if (!ctx.ctm().invert(&localInverse)) { |
317 return false; | 317 return false; |
318 } | 318 } |
319 | 319 |
320 SkAutoLockPixels alp(src); | 320 SkAutoLockPixels alp(src); |
321 SkASSERT(src.getPixels()); | 321 SkASSERT(src.getPixels()); |
322 if (!src.getPixels() || src.width() <= 0 || src.height() <= 0) { | 322 if (!src.getPixels() || src.width() <= 0 || src.height() <= 0) { |
323 return false; | 323 return false; |
324 } | 324 } |
325 | 325 |
326 dst->setConfig(src.config(), src.width(), src.height()); | 326 if (!dst->allocPixels(src.info())) { |
327 if (!dst->allocPixels()) { | |
328 return false; | 327 return false; |
329 } | 328 } |
330 | 329 |
331 U8CPU innerThreshold = (U8CPU)(fInnerThreshold * 0xFF); | 330 U8CPU innerThreshold = (U8CPU)(fInnerThreshold * 0xFF); |
332 U8CPU outerThreshold = (U8CPU)(fOuterThreshold * 0xFF); | 331 U8CPU outerThreshold = (U8CPU)(fOuterThreshold * 0xFF); |
333 SkColor* sptr = src.getAddr32(0, 0); | 332 SkColor* sptr = src.getAddr32(0, 0); |
334 SkColor* dptr = dst->getAddr32(0, 0); | 333 SkColor* dptr = dst->getAddr32(0, 0); |
335 int width = src.width(), height = src.height(); | 334 int width = src.width(), height = src.height(); |
336 for (int y = 0; y < height; ++y) { | 335 for (int y = 0; y < height; ++y) { |
337 for (int x = 0; x < width; ++x) { | 336 for (int x = 0; x < width; ++x) { |
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358 (U8CPU)(SkColorGetG(source) *
scale), | 357 (U8CPU)(SkColorGetG(source) *
scale), |
359 (U8CPU)(SkColorGetB(source) *
scale)); | 358 (U8CPU)(SkColorGetB(source) *
scale)); |
360 } | 359 } |
361 } | 360 } |
362 dptr[y * dst->width() + x] = output_color; | 361 dptr[y * dst->width() + x] = output_color; |
363 } | 362 } |
364 } | 363 } |
365 | 364 |
366 return true; | 365 return true; |
367 } | 366 } |
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