OLD | NEW |
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 "SkFlattenableBuffers.h" | 10 #include "SkFlattenableBuffers.h" |
(...skipping 290 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
301 buffer.writeScalar(fOuterThreshold); | 301 buffer.writeScalar(fOuterThreshold); |
302 buffer.writeRegion(fRegion); | 302 buffer.writeRegion(fRegion); |
303 } | 303 } |
304 | 304 |
305 bool SkAlphaThresholdFilterImpl::onFilterImage(Proxy*, const SkBitmap& src, | 305 bool SkAlphaThresholdFilterImpl::onFilterImage(Proxy*, const SkBitmap& src, |
306 const SkMatrix& matrix, SkBitmap*
dst, | 306 const SkMatrix& matrix, SkBitmap*
dst, |
307 SkIPoint* offset) { | 307 SkIPoint* offset) { |
308 SkASSERT(src.config() == SkBitmap::kARGB_8888_Config); | 308 SkASSERT(src.config() == SkBitmap::kARGB_8888_Config); |
309 | 309 |
310 if (src.config() != SkBitmap::kARGB_8888_Config) { | 310 if (src.config() != SkBitmap::kARGB_8888_Config) { |
311 return false; | 311 return false; |
312 } | 312 } |
313 | 313 |
314 SkMatrix localInverse; | 314 SkMatrix localInverse; |
315 if (!matrix.invert(&localInverse)) { | 315 if (!matrix.invert(&localInverse)) { |
316 return NULL; | 316 return false; |
317 } | 317 } |
318 | 318 |
319 SkAutoLockPixels alp(src); | 319 SkAutoLockPixels alp(src); |
320 SkASSERT(src.getPixels()); | 320 SkASSERT(src.getPixels()); |
321 if (!src.getPixels() || src.width() <= 0 || src.height() <= 0) { | 321 if (!src.getPixels() || src.width() <= 0 || src.height() <= 0) { |
322 return false; | 322 return false; |
323 } | 323 } |
324 | 324 |
325 dst->setConfig(src.config(), src.width(), src.height()); | 325 dst->setConfig(src.config(), src.width(), src.height()); |
326 dst->allocPixels(); | 326 dst->allocPixels(); |
327 if (!dst->getPixels()) { | 327 if (!dst->getPixels()) { |
328 return false; | 328 return false; |
329 } | 329 } |
330 | 330 |
331 U8CPU innerThreshold = fInnerThreshold * 0xFF; | 331 U8CPU innerThreshold = (U8CPU)(fInnerThreshold * 0xFF); |
332 U8CPU outerThreshold = fOuterThreshold * 0xFF; | 332 U8CPU outerThreshold = (U8CPU)(fOuterThreshold * 0xFF); |
333 SkColor* sptr = src.getAddr32(0, 0); | 333 SkColor* sptr = src.getAddr32(0, 0); |
334 SkColor* dptr = dst->getAddr32(0, 0); | 334 SkColor* dptr = dst->getAddr32(0, 0); |
335 int width = src.width(), height = src.height(); | 335 int width = src.width(), height = src.height(); |
336 for (int y = 0; y < height; ++y) { | 336 for (int y = 0; y < height; ++y) { |
337 for (int x = 0; x < width; ++x) { | 337 for (int x = 0; x < width; ++x) { |
338 const SkColor& source = sptr[y * width + x]; | 338 const SkColor& source = sptr[y * width + x]; |
339 SkColor output_color(source); | 339 SkColor output_color(source); |
340 SkPoint position; | 340 SkPoint position; |
341 localInverse.mapXY(x, y, &position); | 341 localInverse.mapXY((SkScalar)x, (SkScalar)y, &position); |
342 if (fRegion.contains(position.x(), position.y())) { | 342 if (fRegion.contains((int32_t)position.x(), (int32_t)position.y()))
{ |
343 if (SkColorGetA(source) < innerThreshold) { | 343 if (SkColorGetA(source) < innerThreshold) { |
344 U8CPU alpha = SkColorGetA(source); | 344 U8CPU alpha = SkColorGetA(source); |
345 if (alpha == 0) | 345 if (alpha == 0) |
346 alpha = 1; | 346 alpha = 1; |
347 float scale = (float)innerThreshold / alpha; | 347 float scale = (float)innerThreshold / alpha; |
348 output_color = SkColorSetARGB(innerThreshold, | 348 output_color = SkColorSetARGB(innerThreshold, |
349 SkColorGetR(source) * scale, | 349 (U8CPU)(SkColorGetR(source) *
scale), |
350 SkColorGetG(source) * scale, | 350 (U8CPU)(SkColorGetG(source) *
scale), |
351 SkColorGetB(source) * scale); | 351 (U8CPU)(SkColorGetB(source) *
scale)); |
352 } | 352 } |
353 } else { | 353 } else { |
354 if (SkColorGetA(source) > outerThreshold) { | 354 if (SkColorGetA(source) > outerThreshold) { |
355 float scale = (float)outerThreshold / SkColorGetA(source); | 355 float scale = (float)outerThreshold / SkColorGetA(source); |
356 output_color = SkColorSetARGB(outerThreshold, | 356 output_color = SkColorSetARGB(outerThreshold, |
357 SkColorGetR(source) * scale, | 357 (U8CPU)(SkColorGetR(source) *
scale), |
358 SkColorGetG(source) * scale, | 358 (U8CPU)(SkColorGetG(source) *
scale), |
359 SkColorGetB(source) * scale); | 359 (U8CPU)(SkColorGetB(source) *
scale)); |
360 } | 360 } |
361 } | 361 } |
362 dptr[y * dst->width() + x] = output_color; | 362 dptr[y * dst->width() + x] = output_color; |
363 } | 363 } |
364 } | 364 } |
365 | 365 |
366 return true; | 366 return true; |
367 } | 367 } |
OLD | NEW |