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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 "SkBitmap.h" | 8 #include "SkBitmap.h" |
9 #include "SkCanvas.h" | 9 #include "SkCanvas.h" |
10 #include "SkConfig8888.h" | 10 #include "SkConfig8888.h" |
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230 } | 230 } |
231 | 231 |
232 // Can no longer draw directly into 4444, but we can manually whack it for a
few combinations | 232 // Can no longer draw directly into 4444, but we can manually whack it for a
few combinations |
233 if (kARGB_4444_SkColorType == dstInfo.colorType() && | 233 if (kARGB_4444_SkColorType == dstInfo.colorType() && |
234 (kN32_SkColorType == srcInfo.colorType() || kIndex_8_SkColorType == srcI
nfo.colorType())) { | 234 (kN32_SkColorType == srcInfo.colorType() || kIndex_8_SkColorType == srcI
nfo.colorType())) { |
235 if (srcInfo.alphaType() == kUnpremul_SkAlphaType) { | 235 if (srcInfo.alphaType() == kUnpremul_SkAlphaType) { |
236 // Our method for converting to 4444 assumes premultiplied. | 236 // Our method for converting to 4444 assumes premultiplied. |
237 return false; | 237 return false; |
238 } | 238 } |
239 | 239 |
240 const SkPMColor* table = NULL; | 240 const SkPMColor* table = nullptr; |
241 if (kIndex_8_SkColorType == srcInfo.colorType()) { | 241 if (kIndex_8_SkColorType == srcInfo.colorType()) { |
242 if (NULL == ctable) { | 242 if (nullptr == ctable) { |
243 return false; | 243 return false; |
244 } | 244 } |
245 table = ctable->readColors(); | 245 table = ctable->readColors(); |
246 } | 246 } |
247 | 247 |
248 for (int y = 0; y < height; ++y) { | 248 for (int y = 0; y < height; ++y) { |
249 DITHER_4444_SCAN(y); | 249 DITHER_4444_SCAN(y); |
250 SkPMColor16* SK_RESTRICT dstRow = (SkPMColor16*)dstPixels; | 250 SkPMColor16* SK_RESTRICT dstRow = (SkPMColor16*)dstPixels; |
251 if (table) { | 251 if (table) { |
252 const uint8_t* SK_RESTRICT srcRow = (const uint8_t*)srcPixels; | 252 const uint8_t* SK_RESTRICT srcRow = (const uint8_t*)srcPixels; |
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269 // We do not support drawing to unpremultiplied bitmaps. | 269 // We do not support drawing to unpremultiplied bitmaps. |
270 return false; | 270 return false; |
271 } | 271 } |
272 | 272 |
273 // Final fall-back, draw with a canvas | 273 // Final fall-back, draw with a canvas |
274 // | 274 // |
275 // Always clear the dest in case one of the blitters accesses it | 275 // Always clear the dest in case one of the blitters accesses it |
276 // TODO: switch the allocation of tmpDst to call sk_calloc_throw | 276 // TODO: switch the allocation of tmpDst to call sk_calloc_throw |
277 { | 277 { |
278 SkBitmap bm; | 278 SkBitmap bm; |
279 if (!bm.installPixels(srcInfo, const_cast<void*>(srcPixels), srcRB, ctab
le, NULL, NULL)) { | 279 if (!bm.installPixels(srcInfo, const_cast<void*>(srcPixels), srcRB, ctab
le, nullptr, nullptr)) { |
280 return false; | 280 return false; |
281 } | 281 } |
282 SkAutoTUnref<SkCanvas> canvas(SkCanvas::NewRasterDirect(dstInfo, dstPixe
ls, dstRB)); | 282 SkAutoTUnref<SkCanvas> canvas(SkCanvas::NewRasterDirect(dstInfo, dstPixe
ls, dstRB)); |
283 if (NULL == canvas.get()) { | 283 if (nullptr == canvas.get()) { |
284 return false; | 284 return false; |
285 } | 285 } |
286 | 286 |
287 SkPaint paint; | 287 SkPaint paint; |
288 paint.setDither(true); | 288 paint.setDither(true); |
289 | 289 |
290 canvas->clear(0); | 290 canvas->clear(0); |
291 canvas->drawBitmap(bm, 0, 0, &paint); | 291 canvas->drawBitmap(bm, 0, 0, &paint); |
292 return true; | 292 return true; |
293 } | 293 } |
294 } | 294 } |
295 | 295 |
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