DRC
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bc4d369b49
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If the output buffer in the TurboJPEG destination manager was allocated by the destination manager and is being reused from a previous compression operation, then we need to get the buffer size from the previous operation, since the calling program doesn't know the actual buffer size.
git-svn-id: svn://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1368 632fc199-4ca6-4c93-a231-07263d6284db
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2014-08-21 15:51:47 +00:00 |
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DRC
|
ce6f3d8cd2
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Refactored YUVImage Java class so that it supports both unified YUV image buffers as well as separate YUV image planes; modified the JNI functions accordingly and added new helper functions to the TurboJPEG C API (tjPlaneWidth(), tjPlaneHeight(), tjPlaneSizeYUV()) to facilitate those modifications; changed potentially confusing "component width" and "component height" terms to "plane width" and "plane height" and modified variable names in turbojpeg.c to reflect this; numerous other documentation tweaks
git-svn-id: svn://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1360 632fc199-4ca6-4c93-a231-07263d6284db
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2014-08-17 12:23:49 +00:00 |
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DRC
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4db50792eb
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Oops. Parameter name is "strides", not "stride"
git-svn-id: svn://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1345 632fc199-4ca6-4c93-a231-07263d6284db
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2014-08-12 15:52:51 +00:00 |
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DRC
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8c2c415847
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Reformat TurboJPEG C API documentation to improve ease of maintenance and to make it more consistent with the javadoc formatting; fix minor error in tjCompressFromYUV() prototype.
git-svn-id: svn://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1344 632fc199-4ca6-4c93-a231-07263d6284db
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2014-08-18 01:40:23 +01:00 |
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DRC
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ab62cf7ba5
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Extend the TurboJPEG C API to support handling YUV images stored in separate image planes instead of a unified buffer
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2014-08-11 18:05:41 +00:00 |
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DRC
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22505838cb
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Clean up and consolidate notes regarding the YUV image format. This also corrects a factual error regarding the padding of the luminance plane-- because we now support 4:1:1, the component width is not necessarily padded to the nearest multiple of 2 if horizontal subsampling is used.
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2014-08-10 20:12:17 +00:00 |
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DRC
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11fe81d0df
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Clean up notes using the doxygen @note command
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2014-08-10 18:30:52 +00:00 |
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DRC
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0d25e86574
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Remove trailing spaces (+ one additional tab in TJUnitTest.java that was missed in the previous commit)
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2014-05-09 18:06:58 +00:00 |
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DRC
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960ea8fb66
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As with tjDecompressToYUV*(), tjCompressFromYUV() also conditionally uses an intermediate buffer if the source image dimensions do not fall on MCU boundaries.
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2014-03-15 08:48:53 +00:00 |
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DRC
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5c2f2cccb7
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Implement a YUV decode function in the TurboJPEG API, to be symmetric with tjEncodeYUV().
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2014-02-28 09:17:14 +00:00 |
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DRC
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540789427c
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Per the conventions of the image compression and digital video communities, use "YCbCr" to describe the JPEG colorspace and "YUV" to describe an image format consisting of Y, Cb, and Cr planes (this partially reverts r960.)
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2013-11-25 21:12:23 +00:00 |
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DRC
|
b767b5e6bb
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Deprecate and undocument the FORCE{MMX|SSE|SSE2|SSE3} flags. These were originally introduced in TurboJPEG/IPP as a way to override the automatic CPU selection in the underlying IPP codec, which was closed source. They are not meaningful anymore, since libjpeg-turbo provides environment variables to accomplish the same thing and since it no longer necessarily uses x86 SIMD code behind the scenes.
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2013-10-31 07:11:39 +00:00 |
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DRC
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b3633e930b
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Extend the TurboJPEG C API to support compressing JPEG images from YUV planar images
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2013-10-30 23:02:57 +00:00 |
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DRC
|
ff3d754f29
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Wordsmithing
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2013-08-23 06:38:59 +00:00 |
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DRC
|
0fb3247f9a
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Add CMYK support to the TurboJPEG Java API & clean up a few things in the C API
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2013-08-23 04:45:43 +00:00 |
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DRC
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24668df1df
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Add CMYK support to the TurboJPEG C API
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2013-08-23 02:49:25 +00:00 |
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DRC
|
5ca8bf8738
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Add 4:1:1 subsampling support in the TurboJPEG C API
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2013-08-18 10:19:00 +00:00 |
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DRC
|
f4cdf5e8a2
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Wordsmithing
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2013-08-18 09:31:45 +00:00 |
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DRC
|
b34b2ad711
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Add note regarding the fact that 4:4:0 lacks full SIMD support; Add an option for benchmarking 4:4:0 subsampling in tjbench.
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2013-08-18 09:15:37 +00:00 |
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DRC
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da64629c62
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Extend the TurboJPEG C API to support generating YUV images with arbitrary padding and to support image scaling when decompressing to YUV
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2013-04-26 10:33:29 +00:00 |
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DRC
|
afa79bd62f
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Further doc tweaks
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2013-04-26 08:46:46 +00:00 |
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DRC
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c8a3df184e
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Subtle point, but since libjpeg-turbo 1.3 now supports scaling factors > 1, the width and height specified in tjDecompress2() are not necessarily smaller than the JPEG width/height.
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2013-04-26 05:35:22 +00:00 |
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DRC
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019d51d4f1
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Add flags to the TurboJPEG API that allow the caller to force the use of either the fast or the accurate DCT/IDCT algorithms in the underlying codec.
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2012-06-29 23:46:38 +00:00 |
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DRC
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c1e4151607
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Added new alpha channel colorspace constants/pixel formats, so applications can specify that they need the unused byte in a 4-component RGB output buffer set to 0xFF when decompressing.
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2011-12-19 02:21:03 +00:00 |
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DRC
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51b8cd674a
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"which"="that"
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2011-12-15 13:12:59 +00:00 |
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DRC
|
de5d1ec4e4
|
Wordsmithing
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2011-09-20 18:20:43 +00:00 |
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DRC
|
f343d7332a
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Implement custom filter callback in Java
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2011-09-20 05:02:19 +00:00 |
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DRC
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85a878bf07
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Implement a custom DCT filter callback for lossless transforms
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2011-09-17 00:18:31 +00:00 |
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DRC
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489864aefa
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Re-work TJBUFSIZE() to take into account the level of chrominance subsampling
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2011-07-12 03:17:23 +00:00 |
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DRC
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994f49d8c2
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Added "See also" for tjAlloc() and tjFree()
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2011-05-24 17:00:15 +00:00 |
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DRC
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411c62396d
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Add new API functions, tjAlloc() and tjFree(), which allow memory to be allocated and freed using a method of the library's choosing. At the moment, the primary purpose for this is to avoid allocating/freeing memory across the DLL boundary on Windows.
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2011-05-24 16:52:47 +00:00 |
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DRC
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abeb01d5f1
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Don't require buffer size to be preset if using TJFLAG_NOREALLOC
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2011-05-24 10:17:32 +00:00 |
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DRC
|
34e538a8ca
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Prevent header from being included multiple times
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2011-05-24 09:15:44 +00:00 |
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DRC
|
3ec2702bfc
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Clean up constants so that flags, pixel formats, etc. are clearly differentiated; Update documentation accordingly; Name the enums to make it easier to reference them in the docs and clean up the references accordingly; Set Doxygen option to force a detailed description for the constants to always be generated
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2011-05-21 15:34:54 +00:00 |
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DRC
|
aa92628cd4
|
Completely refactored the TurboJPEG C API so that it uses pixel formats instead of the clunky pixel size + flags combination to define the pixel size and component order. tjCompress2() and tjTransform() can also now grow the JPEG buffer as needed, which can allow programs to save memory by not pre-allocating the "worst-case" buffer size calculated by TJBUFSIZE(). Converted API documentation to Doxygen. There is no legacy code remaining, so the refactored version of the library has been re-licensed under a BSD-style license.
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2011-05-21 14:37:15 +00:00 |
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DRC
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552dd27bde
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tjTransform() was not working properly if r.w=0 or r.h=0
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2011-03-15 20:09:47 +00:00 |
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DRC
|
4c5eae3bd0
|
Wordsmithing
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2011-03-15 19:33:43 +00:00 |
|
DRC
|
074a6f24bb
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Handle 4:4:0 (transposed 4:2:2 subsampling)
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2011-03-04 12:52:45 +00:00 |
|
DRC
|
4be061b162
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Oops. Left out the all-important transform structures
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2011-03-02 09:27:49 +00:00 |
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DRC
|
66b6d80ed6
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Since lossless transforms have such a high fixed performance cost, implement a mechanism for performing more than one at a time on the same source image.
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2011-03-02 09:22:41 +00:00 |
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DRC
|
92df122286
|
Wordsmithing and general cleanup
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2011-03-02 09:05:09 +00:00 |
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DRC
|
be085e08b3
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tjGetScaledSize() would never be able to accommodate scaling factors > 1, so replace it with a function that returns a list of fractional scaling factors that TurboJPEG supports.
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2011-03-01 09:53:07 +00:00 |
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DRC
|
3f2ef301c4
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Expose libjpeg lossless transform feature in TurboJPEG/OSS
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2011-02-26 22:02:37 +00:00 |
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DRC
|
c8ddbca289
|
"tjScaledSize"="tjGetScaledSize" (again)
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2011-02-26 20:15:27 +00:00 |
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DRC
|
02156d7c53
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"tjScaledSize"="tjGetScaledSize"
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2011-02-26 19:53:58 +00:00 |
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DRC
|
3405865cd2
|
Replace the TJ_YUV flag with two new API functions
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2011-02-25 02:08:23 +00:00 |
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DRC
|
e7c15f3e41
|
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2011-02-22 10:28:18 +00:00 |
|
DRC
|
38218222cd
|
Make the scaling API a bit more friendly
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2011-02-22 06:41:29 +00:00 |
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DRC
|
05c1af2f57
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"TurboJPEG/OSS"="TurboJPEG", since the TurboJPEG header is used with other codecs besides libjpeg-turbo
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2011-02-22 00:36:04 +00:00 |
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DRC
|
9eecea2a8e
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Add TJBUFSIZEYUV() convenience function
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2011-02-22 00:16:14 +00:00 |
|