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1 /* | 1 /* |
2 * Copyright 2016 Google Inc. | 2 * Copyright 2016 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.h" | 8 #include "SkCodec.h" |
9 #include "SkCodecPriv.h" | 9 #include "SkCodecPriv.h" |
10 #include "SkColorPriv.h" | 10 #include "SkColorPriv.h" |
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633 } else { | 633 } else { |
634 rawStream.reset(new SkRawBufferedStream(stream)); | 634 rawStream.reset(new SkRawBufferedStream(stream)); |
635 } | 635 } |
636 | 636 |
637 // Does not take the ownership of rawStream. | 637 // Does not take the ownership of rawStream. |
638 SkPiexStream piexStream(rawStream.get()); | 638 SkPiexStream piexStream(rawStream.get()); |
639 ::piex::PreviewImageData imageData; | 639 ::piex::PreviewImageData imageData; |
640 if (::piex::IsRaw(&piexStream)) { | 640 if (::piex::IsRaw(&piexStream)) { |
641 ::piex::Error error = ::piex::GetPreviewImageData(&piexStream, &imageDat a); | 641 ::piex::Error error = ::piex::GetPreviewImageData(&piexStream, &imageDat a); |
642 | 642 |
643 if (error == ::piex::Error::kOk && imageData.preview.length > 0) { | 643 // PIEX can return JPEG compressed image or uncompressed RGB image. We o nly handle the JPEG |
scroggo
2016/04/13 12:20:23
I'm confused. What is the "uncompressed RGB image"
yujieqin
2016/04/13 13:11:29
There are two kind of thumbnails image can be embe
scroggo
2016/04/13 15:54:31
Ah, this probably is more obvious to someone who i
yujieqin
2016/04/14 07:54:59
Actually it is not only for "thumbnail". Theoretic
scroggo
2016/04/14 13:24:24
Ah, thanks for clarifying.
| |
644 // compressed case for now. | |
645 if (error == ::piex::Error::kOk && imageData.preview.length > 0 && | |
646 imageData.preview.format == ::piex::Image::kJpegCompressed) | |
647 { | |
644 // transferBuffer() is destructive to the rawStream. Abandon the raw Stream after this | 648 // transferBuffer() is destructive to the rawStream. Abandon the raw Stream after this |
645 // function call. | 649 // function call. |
646 // FIXME: one may avoid the copy of memoryStream and use the buffere d rawStream. | 650 // FIXME: one may avoid the copy of memoryStream and use the buffere d rawStream. |
647 SkMemoryStream* memoryStream = | 651 SkMemoryStream* memoryStream = |
648 rawStream->transferBuffer(imageData.preview.offset, imageData.pr eview.length); | 652 rawStream->transferBuffer(imageData.preview.offset, imageData.pr eview.length); |
649 return memoryStream ? SkJpegCodec::NewFromStream(memoryStream) : nul lptr; | 653 return memoryStream ? SkJpegCodec::NewFromStream(memoryStream) : nul lptr; |
650 } else if (error == ::piex::Error::kFail) { | 654 } else if (error == ::piex::Error::kFail) { |
651 return nullptr; | 655 return nullptr; |
652 } | 656 } |
653 } | 657 } |
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755 SkISize sizeFloor = this->onGetScaledDimensions(1.f / std::floor(fullShortEd ge / shortEdge)); | 759 SkISize sizeFloor = this->onGetScaledDimensions(1.f / std::floor(fullShortEd ge / shortEdge)); |
756 SkISize sizeCeil = this->onGetScaledDimensions(1.f / std::ceil(fullShortEdge / shortEdge)); | 760 SkISize sizeCeil = this->onGetScaledDimensions(1.f / std::ceil(fullShortEdge / shortEdge)); |
757 return sizeFloor == dim || sizeCeil == dim; | 761 return sizeFloor == dim || sizeCeil == dim; |
758 } | 762 } |
759 | 763 |
760 SkRawCodec::~SkRawCodec() {} | 764 SkRawCodec::~SkRawCodec() {} |
761 | 765 |
762 SkRawCodec::SkRawCodec(SkDngImage* dngImage) | 766 SkRawCodec::SkRawCodec(SkDngImage* dngImage) |
763 : INHERITED(dngImage->getImageInfo(), nullptr) | 767 : INHERITED(dngImage->getImageInfo(), nullptr) |
764 , fDngImage(dngImage) {} | 768 , fDngImage(dngImage) {} |
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