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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 "SkCodec_libgif.h" | 8 #include "SkCodec_libgif.h" |
9 #include "SkCodecPriv.h" | 9 #include "SkCodecPriv.h" |
10 #include "SkColorPriv.h" | 10 #include "SkColorPriv.h" |
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336 imageTop = 0; | 336 imageTop = 0; |
337 } | 337 } |
338 | 338 |
339 // Create a color table to store colors the giflib colorMap | 339 // Create a color table to store colors the giflib colorMap |
340 SkPMColor alternateColorPtr[256]; | 340 SkPMColor alternateColorPtr[256]; |
341 SkPMColor* colorTable; | 341 SkPMColor* colorTable; |
342 SkColorType dstColorType = dstInfo.colorType(); | 342 SkColorType dstColorType = dstInfo.colorType(); |
343 if (kIndex_8_SkColorType == dstColorType) { | 343 if (kIndex_8_SkColorType == dstColorType) { |
344 SkASSERT(NULL != inputColorPtr); | 344 SkASSERT(NULL != inputColorPtr); |
345 SkASSERT(NULL != inputColorCount); | 345 SkASSERT(NULL != inputColorCount); |
346 SkASSERT(256 == *inputColorCount); | |
347 colorTable = inputColorPtr; | 346 colorTable = inputColorPtr; |
348 } else { | 347 } else { |
349 colorTable = alternateColorPtr; | 348 colorTable = alternateColorPtr; |
350 } | 349 } |
351 | 350 |
352 // Set up the color table | 351 // Set up the color table |
353 uint32_t colorCount = 0; | 352 uint32_t colorCount = 0; |
354 // Allocate maximum storage to deal with invalid indices safely | 353 // Allocate maximum storage to deal with invalid indices safely |
355 const uint32_t maxColors = 256; | 354 const uint32_t maxColors = 256; |
356 ColorMapObject* colorMap = fGif->Image.ColorMap; | 355 ColorMapObject* colorMap = fGif->Image.ColorMap; |
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562 // giflib returns an error code if the record type is not known. | 561 // giflib returns an error code if the record type is not known. |
563 // We should catch this error immediately. | 562 // We should catch this error immediately. |
564 SkASSERT(false); | 563 SkASSERT(false); |
565 break; | 564 break; |
566 } | 565 } |
567 } while (TERMINATE_RECORD_TYPE != recordType); | 566 } while (TERMINATE_RECORD_TYPE != recordType); |
568 | 567 |
569 return gif_error("Could not find any images to decode in gif file.\n", | 568 return gif_error("Could not find any images to decode in gif file.\n", |
570 kInvalidInput); | 569 kInvalidInput); |
571 } | 570 } |
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