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5bc43c78
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2017-11-13T21:01:53
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Further partial image decompression fixes
- Referring to 073b0e88a192adebbb479ee2456beb089d8b5de7 and #185, the
reason why BMP and RLE didn't (and won't) work with partial image
decompression is that the output engines for both formats maintain a
whole-image buffer, which is used to reverse the order of scanlines.
However, it was straightforward to add -crop support for GIF and
Targa, which is useful for testing partial image decompression along
with color quantization.
- Such testing reproduced a bug reported by Mozilla (refer to PR #182)
whereby jpeg_skip_scanlines() would segfault if color quantization was
enabled. To fix this issue, read_and_discard_scanlines() now sets up
a dummy quantize function in the same manner that it sets up a dummy
color conversion function.
Closes #182
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025c1f66
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2016-02-22T10:00:19
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Fix v7/v8-compatible build
Broken by 3ab68cf563f6edc2608c085f5c8b2d5d5c61157e
Fixes #60
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3ab68cf5
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2016-02-19T18:32:10
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libjpeg API: Partial scanline decompression
This, in combination with the existing jpeg_skip_scanlines() function,
provides the ability to crop the image both horizontally and vertically
while decompressing (certain restrictions apply-- see libjpeg.txt.)
This also cleans up the documentation of the line skipping feature and
removes the "strip decompression" feature from djpeg, since the new
cropping feature is a superset of it.
Refer to #34 for discussion.
Closes #34
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fc11193e
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2014-01-19T00:00:00
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The Independent JPEG Group's JPEG software v9a
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ce0dd949
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2016-02-06T12:18:44
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Fix MinGW build
jinclude.h can't be safely included multiple times, so instead of
including it in the shared (broken-out) headers, it should instead be
included by the source files that include one or more of those headers.
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7e3acc0e
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2015-10-10T10:25:46
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Rename README, LICENSE, BUILDING text files
The IJG README file has been renamed to README.ijg, in order to avoid
confusion (many people were assuming that that was our project's README
file and weren't reading README-turbo.txt) and to lay the groundwork for
markdown versions of the libjpeg-turbo README and build instructions.
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489583f5
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1996-02-07T00:00:00
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The Independent JPEG Group's JPEG software v6a
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bc79e068
|
1995-08-02T00:00:00
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The Independent JPEG Group's JPEG software v6
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5996a25e
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2009-06-27T00:00:00
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The Independent JPEG Group's JPEG software v7
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03e755bb
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2015-07-21T17:36:18
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Further improvements to partial image decoding
When using context-based upsampling, use a dummy color conversion
routine instead of a dummy row buffer. This improves performance
(since the actual color conversion routine no longer has to be called),
and it also fixes valgrind errors when decompressing to RGB565.
Valgrind previously complained, because using the RGB565 color
converter with the dummy row buffer was causing a table lookup with
undefined indices.
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9cc59722
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2015-07-01T16:56:44
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Fix a memory leak in jpeg_skip_scanlines()
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1591 632fc199-4ca6-4c93-a231-07263d6284db
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162c9985
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2015-06-27T08:10:32
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Fix compiler warnings in jpeg_skip_scanlines() when building under Visual Studio.
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1588 632fc199-4ca6-4c93-a231-07263d6284db
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ac09954b
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2015-06-27T08:10:30
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Fix a couple of seg faults discovered when testing the new jpeg_skip_scanlines() function + remove comment that is no longer relevant.
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1586 632fc199-4ca6-4c93-a231-07263d6284db
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eb32cc1e
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2015-06-25T03:44:36
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Add a new libjpeg API function (jpeg_skip_scanlines()) to allow for partially decoding a JPEG image.
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1582 632fc199-4ca6-4c93-a231-07263d6284db
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bc56b754
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2014-05-16T10:43:44
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Get rid of the HAVE_PROTOTYPES configuration option, as well as the related JMETHOD and JPP macros. libjpeg-turbo has never supported compilers that don't handle prototypes. Doing so requires ansi2knr, which isn't even supported in the IJG code anymore.
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1308 632fc199-4ca6-4c93-a231-07263d6284db
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b7753510
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2014-05-11T09:36:25
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Convert tabs to spaces in the libjpeg code and the SIMD code (TurboJPEG retains the use of tabs for historical reasons. They were annoying in the libjpeg code primarily because they were not consistently used and because they were used to format as well as indent the code. In the case of TurboJPEG, tabs are used just to indent the code, so even if the editor assumes a different tab width, the code will still be readable.)
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1285 632fc199-4ca6-4c93-a231-07263d6284db
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e5eaf374
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2014-05-09T18:00:32
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Convert tabs to spaces in the libjpeg code and the SIMD code (TurboJPEG retains the use of tabs for historical reasons. They were annoying in the libjpeg code primarily because they were not consistently used and because they were used to format as well as indent the code. In the case of TurboJPEG, tabs are used just to indent the code, so even if the editor assumes a different tab width, the code will still be readable.)
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1278 632fc199-4ca6-4c93-a231-07263d6284db
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a6ef282a
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2013-09-28T03:23:49
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Some of the IJG headers say "Modified by", so clarify that our "Modifications" are not referring to these.
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1053 632fc199-4ca6-4c93-a231-07263d6284db
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a73e870a
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2012-12-31T02:52:30
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Change the copyright notices to make it clear that our modified files are not part of the IJG's software.
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.2.x@873 632fc199-4ca6-4c93-a231-07263d6284db
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49967cdb
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2010-10-09T19:57:51
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Improve readability and flexibility of compatibility macros
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@241 632fc199-4ca6-4c93-a231-07263d6284db
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36a6eec9
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2010-10-08T08:05:44
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Added optional emulation of the jpeg-7 or jpeg-8b API/ABI's
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@236 632fc199-4ca6-4c93-a231-07263d6284db
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