third_party/WebKit/Source/platform/image-decoders/jpeg/JPEGImageDecoder.h - Issue 2930513004: [WIP] Move ImageDecoders to SkCodec

Side by Side Diff: third_party/WebKit/Source/platform/image-decoders/jpeg/JPEGImageDecoder.h

Issue 2930513004: [WIP] Move ImageDecoders to SkCodec

Patch Set: Adding check for decoder creation Created 3 years, 6 months ago

Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.

Jump to:

« no previous file with comments | « third_party/WebKit/Source/platform/image-decoders/ico/ICOImageDecoderTest.cpp ('k') | third_party/WebKit/Source/platform/image-decoders/jpeg/JPEGImageDecoder.cpp » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Hide Comments ('s')

OLD	NEW
	(Empty)
1 /*

2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved.

3 *

4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions

6 * are met:

7 * 1. Redistributions of source code must retain the above copyright

8 * notice, this list of conditions and the following disclaimer.

9 * 2. Redistributions in binary form must reproduce the above copyright

10 * notice, this list of conditions and the following disclaimer in the

11 * documentation and/or other materials provided with the distribution.

12 *

13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR

17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

24 */

25

26 #ifndef JPEGImageDecoder_h

27 #define JPEGImageDecoder_h

28

29 #include "platform/image-decoders/ImageDecoder.h"

30 #include <memory>

31

32 namespace blink {

33

34 class JPEGImageReader;

35

36 class PLATFORM_EXPORT JPEGImageDecoder final : public ImageDecoder {

37 WTF_MAKE_NONCOPYABLE(JPEGImageDecoder);

38

39 public:

40 JPEGImageDecoder(AlphaOption, const ColorBehavior&, size_t max_decoded_bytes);

41 ~JPEGImageDecoder() override;

42

43 // ImageDecoder:

44 String FilenameExtension() const override { return "jpg"; }

45 void OnSetData(SegmentReader* data) override;

46 IntSize DecodedSize() const override { return decoded_size_; }

47 bool SetSize(unsigned width, unsigned height) override;

48 IntSize DecodedYUVSize(int component) const override;

49 size_t DecodedYUVWidthBytes(int component) const override;

50 bool CanDecodeToYUV() override;

51 bool DecodeToYUV() override;

52 void SetImagePlanes(std::unique_ptr<ImagePlanes>) override;

53 bool HasImagePlanes() const { return image_planes_.get(); }

54

55 bool OutputScanlines();

56 unsigned DesiredScaleNumerator() const;

57 void Complete();

58

59 void SetOrientation(ImageOrientation orientation) {

60 orientation_ = orientation;

61 }

62 void SetDecodedSize(unsigned width, unsigned height);

63

64 private:

65 // ImageDecoder:

66 void DecodeSize() override { Decode(true); }

67 void Decode(size_t) override { Decode(false); }

68

69 // Decodes the image. If \|only_size\| is true, stops decoding after

70 // calculating the image size. If decoding fails but there is no more

71 // data coming, sets the "decode failure" flag.

72 void Decode(bool only_size);

73

74 std::unique_ptr<JPEGImageReader> reader_;

75 std::unique_ptr<ImagePlanes> image_planes_;

76 IntSize decoded_size_;

77 };

78

79 } // namespace blink

80

81 #endif

OLD	NEW