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1 /* | 1 /* |
2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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450 if (failed()) | 450 if (failed()) |
451 return false; | 451 return false; |
452 | 452 |
453 DCHECK(isDecodedSizeAvailable()); | 453 DCHECK(isDecodedSizeAvailable()); |
454 | 454 |
455 DCHECK_GT(m_frameBufferCache.size(), frameIndex); | 455 DCHECK_GT(m_frameBufferCache.size(), frameIndex); |
456 ImageFrame& buffer = m_frameBufferCache[frameIndex]; | 456 ImageFrame& buffer = m_frameBufferCache[frameIndex]; |
457 DCHECK_NE(buffer.getStatus(), ImageFrame::FrameComplete); | 457 DCHECK_NE(buffer.getStatus(), ImageFrame::FrameComplete); |
458 | 458 |
459 if (buffer.getStatus() == ImageFrame::FrameEmpty) { | 459 if (buffer.getStatus() == ImageFrame::FrameEmpty) { |
460 if (!buffer.setSizeAndColorSpace(size().width(), size().height(), | 460 if (!buffer.allocatePixelData(size().width(), size().height(), |
461 colorSpaceForSkImages())) | 461 colorSpaceForSkImages())) |
462 return setFailed(); | 462 return setFailed(); |
463 buffer.setStatus(ImageFrame::FramePartial); | 463 buffer.zeroFillPixelData(); |
464 // The buffer is transparent outside the decoded area while the image is | 464 // The buffer is transparent outside the decoded area while the image is |
scroggo_chromium
2017/03/17 14:36:38
Similarly, this comment seems to apply to the line
cblume
2017/03/17 18:05:46
Done.
| |
465 // loading. The correct alpha value for the frame will be set when it is | 465 // loading. The correct alpha value for the frame will be set when it is |
466 // fully decoded. | 466 // fully decoded. |
467 buffer.setHasAlpha(true); | 467 buffer.setStatus(ImageFrame::FramePartial); |
468 buffer.setOriginalFrameRect(IntRect(IntPoint(), size())); | 468 buffer.setOriginalFrameRect(IntRect(IntPoint(), size())); |
469 } | 469 } |
470 | 470 |
471 const IntRect& frameRect = buffer.originalFrameRect(); | 471 const IntRect& frameRect = buffer.originalFrameRect(); |
472 if (!m_decoder) { | 472 if (!m_decoder) { |
473 WEBP_CSP_MODE mode = outputMode(m_formatFlags & ALPHA_FLAG); | 473 WEBP_CSP_MODE mode = outputMode(m_formatFlags & ALPHA_FLAG); |
474 if (!m_premultiplyAlpha) | 474 if (!m_premultiplyAlpha) |
475 mode = outputMode(false); | 475 mode = outputMode(false); |
476 if (colorTransform()) { | 476 if (colorTransform()) { |
477 // Swizzling between RGBA and BGRA is zero cost in a color transform. | 477 // Swizzling between RGBA and BGRA is zero cost in a color transform. |
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512 return false; | 512 return false; |
513 } | 513 } |
514 // FALLTHROUGH | 514 // FALLTHROUGH |
515 default: | 515 default: |
516 clear(); | 516 clear(); |
517 return setFailed(); | 517 return setFailed(); |
518 } | 518 } |
519 } | 519 } |
520 | 520 |
521 } // namespace blink | 521 } // namespace blink |
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