kmx git

Commit	Date	Message
123f7258	2016-05-24T10:23:56	Format copyright headers more consistently The IJG convention is to format copyright notices as: Copyright (C) YYYY, Owner. We try to maintain this convention for any code that is part of the libjpeg API library (with the exception of preserving the copyright notices from Cendio's code verbatim, since those predate libjpeg-turbo.) Note that the phrase "All Rights Reserved" is no longer necessary, since all Buenos Aires Convention signatories signed onto the Berne Convention in 2000. However, our convention is to retain this phrase for any files that have a self-contained copyright header but to leave it off of any files that refer to another file for conditions of distribution and use. For instance, all of the non-SIMD files in the libjpeg API library refer to README.ijg, and the copyright message in that file contains "All Rights Reserved", so it is unnecessary to add it to the individual files. The TurboJPEG code retains my preferred formatting convention for copyright notices, which is based on that of VirtualGL (where the TurboJPEG API originated.)
1e32fe31	2015-10-14T17:32:39	Replace INT32 with a new internal datatype (JLONG) These days, INT32 is a commonly-defined datatype in system headers. We cannot eliminate the definition of that datatype from jmorecfg.h, since the INT32 typedef has technically been part of the libjpeg API since version 5 (1994.) However, using INT32 internally is risky, because the inclusion of a particular header (Xmd.h, for instance) could change the definition of INT32 from long to int on 64-bit platforms and thus change the internal behavior of libjpeg-turbo in unexpected ways (for instance, failing to correctly set __INT32_IS_ACTUALLY_LONG to match the INT32 typedef-- perhaps as a result of including the wrong version of jpeglib.h-- could cause libjpeg-turbo to produce incorrect results.) The library has always been built in environments in which INT32 is effectively long (on Windows, long is always 32-bit, so effectively it's the same as int), so it makes sense to turn INT32 into an explicitly long datatype. This ensures that libjpeg-turbo will always behave consistently, regardless of the headers included at compile time. Addresses a concern expressed in #26.
b961f0bf	2015-09-16T23:16:38	Merge branch '1.4.x'
54792ba3	2015-09-16T23:05:46	Fix MIPS DSPr2 4:2:0 upsample bug w/ small images The DSPr2 code was errantly comparing the residual (t9, width & 0xF) with the end pointer (t4, out + width) instead of the width directly (a1). This would give the wrong results with any image whose output width was less than 16. The other small changes (ulw to lw and removal of the nop) are just some easy optimizations around this code. This issue caused a buffer overrun and subsequent segfault on images whose scaled output height was 1 pixel and whose scaled output width was < 16 pixels. Note that the "plain" (non-fancy and non-merged) upsample routine, which was affected by this bug, is normally not used except when decompressing a non-YCbCr JPEG image, but it is also used when decompressing a single-row image (because the other upsampling algorithms require at least two rows.) Closes #16.
f62dbccf	2015-08-15T13:30:14	Fix build error when compiling MIPS SIMD w/ -mfpxx When compiled with -mfpxx (which is now the default on Debian), there are some restrictions on the use of odd-numbered FP registers. More details about FPXX can be found here: https://dmz-portal.mips.com/wiki/MIPS_O32_ABI_-_FR0_and_FR1_Interlinking This commit simply changes all uses of FP registers to an even-numbered equivalent like this: f0 -> f0 f1 -> f2 f2 -> f4 ... f8 -> f16 This commit should have no observable effect except that the MIPS assembly will now compile with -mfpxx. Closes #11
f15ef337	2015-06-08T17:41:34	Fix a segfault that occured in the MIPS DSPr2 fancy upsampling routine when downsampled_width==3. Because the DSPr2 code unrolls the loop for the middle columns (refer to jdsample.c), it has the effect of performing two column iterations, and that only works properly if the number of columns (minus the first and last) is >= 2. For the specific case of downsampled_width==3, this patch skips to the second iteration of the unrolled column loop. git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.4.x@1562 632fc199-4ca6-4c93-a231-07263d6284db
5ef46305	2014-05-18T20:04:47	SIMD-accelerated int upsample routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1315 632fc199-4ca6-4c93-a231-07263d6284db
1b3fd7ee	2014-05-15T18:26:01	SIMD-accelerated NULL convert routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1304 632fc199-4ca6-4c93-a231-07263d6284db
0bf325b8	2014-05-15T17:10:39	Fix error in MIPS DSPr2 accelerated smooth downsample routine git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1302 632fc199-4ca6-4c93-a231-07263d6284db
6a61c1e6	2014-05-14T15:00:10	SIMD-accelerated h2v2 smooth downsampling routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1301 632fc199-4ca6-4c93-a231-07263d6284db
b844eaa3	2014-05-13T18:40:14	SIMD-accelerated merged upsampling routines for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1297 632fc199-4ca6-4c93-a231-07263d6284db
771886c1	2014-05-09T14:45:55	Fix an error in the MIPS DSPr2 fancy upsampling routine git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1277 632fc199-4ca6-4c93-a231-07263d6284db
34347862	2014-05-06T09:53:21	SIMD-accelerated slow integer IDCT routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1269 632fc199-4ca6-4c93-a231-07263d6284db
fff6c23a	2013-10-12T21:39:20	SIMD-accelerated integer convsamp routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1059 632fc199-4ca6-4c93-a231-07263d6284db
3d727281	2013-10-09T18:39:44	SIMD-accelerated floating point quantize and convsamp routines for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1058 632fc199-4ca6-4c93-a231-07263d6284db
d3131c1b	2013-10-08T02:18:59	SIMD-accelerated fast integer inverse DCT routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1056 632fc199-4ca6-4c93-a231-07263d6284db
71e06a7d	2013-10-08T02:11:21	SIMD-accelerated fast integer forward DCT routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1055 632fc199-4ca6-4c93-a231-07263d6284db
a6b7fbd3	2013-09-30T18:13:27	SIMD-accelerated slow integer forward DCT and quantize routines for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1054 632fc199-4ca6-4c93-a231-07263d6284db
e5005917	2013-09-27T17:51:08	SIMD-accelerated 3/4 and 3/2 decompression scaling for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1047 632fc199-4ca6-4c93-a231-07263d6284db
2ccf4d1a	2013-09-27T17:43:23	SIMD-accelerated 1/2 and 1/4 decompression scaling for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1046 632fc199-4ca6-4c93-a231-07263d6284db
49eaa757	2013-09-27T17:39:57	SIMD-optimized RGB-to-grayscale conversion for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1045 632fc199-4ca6-4c93-a231-07263d6284db
922b14b8	2013-09-25T17:33:37	Fix segfault in MIPS DSPr2 upsample routines that occurred when doing 'make test' git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1040 632fc199-4ca6-4c93-a231-07263d6284db
16962c11	2013-07-27T21:50:02	SIMD support for performing upsampling using MIPS DSPr2 instructions git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@996 632fc199-4ca6-4c93-a231-07263d6284db
6f2d3c2c	2013-07-27T21:48:18	SIMD support for performing downsampling using MIPS DSPr2 instructions git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@995 632fc199-4ca6-4c93-a231-07263d6284db
86fbf35f	2013-07-27T21:44:14	SIMD support for performing fancy upsampling using MIPS DSPr2 instructions git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@994 632fc199-4ca6-4c93-a231-07263d6284db
0be9fa57	2013-07-24T21:50:20	SIMD support for performing color conversion using MIPS DSPr2 instructions git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@993 632fc199-4ca6-4c93-a231-07263d6284db

123f7258

2016-05-24T10:23:56

Format copyright headers more consistently The IJG convention is to format copyright notices as: Copyright (C) YYYY, Owner. We try to maintain this convention for any code that is part of the libjpeg API library (with the exception of preserving the copyright notices from Cendio's code verbatim, since those predate libjpeg-turbo.) Note that the phrase "All Rights Reserved" is no longer necessary, since all Buenos Aires Convention signatories signed onto the Berne Convention in 2000. However, our convention is to retain this phrase for any files that have a self-contained copyright header but to leave it off of any files that refer to another file for conditions of distribution and use. For instance, all of the non-SIMD files in the libjpeg API library refer to README.ijg, and the copyright message in that file contains "All Rights Reserved", so it is unnecessary to add it to the individual files. The TurboJPEG code retains my preferred formatting convention for copyright notices, which is based on that of VirtualGL (where the TurboJPEG API originated.)

1e32fe31

2015-10-14T17:32:39

Replace INT32 with a new internal datatype (JLONG) These days, INT32 is a commonly-defined datatype in system headers. We cannot eliminate the definition of that datatype from jmorecfg.h, since the INT32 typedef has technically been part of the libjpeg API since version 5 (1994.) However, using INT32 internally is risky, because the inclusion of a particular header (Xmd.h, for instance) could change the definition of INT32 from long to int on 64-bit platforms and thus change the internal behavior of libjpeg-turbo in unexpected ways (for instance, failing to correctly set __INT32_IS_ACTUALLY_LONG to match the INT32 typedef-- perhaps as a result of including the wrong version of jpeglib.h-- could cause libjpeg-turbo to produce incorrect results.) The library has always been built in environments in which INT32 is effectively long (on Windows, long is always 32-bit, so effectively it's the same as int), so it makes sense to turn INT32 into an explicitly long datatype. This ensures that libjpeg-turbo will always behave consistently, regardless of the headers included at compile time. Addresses a concern expressed in #26.

b961f0bf

2015-09-16T23:16:38

Merge branch '1.4.x'

54792ba3

2015-09-16T23:05:46

Fix MIPS DSPr2 4:2:0 upsample bug w/ small images The DSPr2 code was errantly comparing the residual (t9, width & 0xF) with the end pointer (t4, out + width) instead of the width directly (a1). This would give the wrong results with any image whose output width was less than 16. The other small changes (ulw to lw and removal of the nop) are just some easy optimizations around this code. This issue caused a buffer overrun and subsequent segfault on images whose scaled output height was 1 pixel and whose scaled output width was < 16 pixels. Note that the "plain" (non-fancy and non-merged) upsample routine, which was affected by this bug, is normally not used except when decompressing a non-YCbCr JPEG image, but it is also used when decompressing a single-row image (because the other upsampling algorithms require at least two rows.) Closes #16.

f62dbccf

2015-08-15T13:30:14

Fix build error when compiling MIPS SIMD w/ -mfpxx When compiled with -mfpxx (which is now the default on Debian), there are some restrictions on the use of odd-numbered FP registers. More details about FPXX can be found here: https://dmz-portal.mips.com/wiki/MIPS_O32_ABI_-_FR0_and_FR1_Interlinking This commit simply changes all uses of FP registers to an even-numbered equivalent like this: f0 -> f0 f1 -> f2 f2 -> f4 ... f8 -> f16 This commit should have no observable effect except that the MIPS assembly will now compile with -mfpxx. Closes #11

f15ef337

2015-06-08T17:41:34

Fix a segfault that occured in the MIPS DSPr2 fancy upsampling routine when downsampled_width==3. Because the DSPr2 code unrolls the loop for the middle columns (refer to jdsample.c), it has the effect of performing two column iterations, and that only works properly if the number of columns (minus the first and last) is >= 2. For the specific case of downsampled_width==3, this patch skips to the second iteration of the unrolled column loop. git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.4.x@1562 632fc199-4ca6-4c93-a231-07263d6284db

5ef46305

2014-05-18T20:04:47

SIMD-accelerated int upsample routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1315 632fc199-4ca6-4c93-a231-07263d6284db

1b3fd7ee

2014-05-15T18:26:01

SIMD-accelerated NULL convert routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1304 632fc199-4ca6-4c93-a231-07263d6284db

0bf325b8

2014-05-15T17:10:39

Fix error in MIPS DSPr2 accelerated smooth downsample routine git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1302 632fc199-4ca6-4c93-a231-07263d6284db

6a61c1e6

2014-05-14T15:00:10

SIMD-accelerated h2v2 smooth downsampling routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1301 632fc199-4ca6-4c93-a231-07263d6284db

b844eaa3

2014-05-13T18:40:14

SIMD-accelerated merged upsampling routines for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1297 632fc199-4ca6-4c93-a231-07263d6284db

771886c1

2014-05-09T14:45:55

Fix an error in the MIPS DSPr2 fancy upsampling routine git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1277 632fc199-4ca6-4c93-a231-07263d6284db

34347862

2014-05-06T09:53:21

SIMD-accelerated slow integer IDCT routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1269 632fc199-4ca6-4c93-a231-07263d6284db

fff6c23a

2013-10-12T21:39:20

SIMD-accelerated integer convsamp routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1059 632fc199-4ca6-4c93-a231-07263d6284db

3d727281

2013-10-09T18:39:44

SIMD-accelerated floating point quantize and convsamp routines for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1058 632fc199-4ca6-4c93-a231-07263d6284db

d3131c1b

2013-10-08T02:18:59

SIMD-accelerated fast integer inverse DCT routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1056 632fc199-4ca6-4c93-a231-07263d6284db

71e06a7d

2013-10-08T02:11:21

SIMD-accelerated fast integer forward DCT routine for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1055 632fc199-4ca6-4c93-a231-07263d6284db

a6b7fbd3

2013-09-30T18:13:27

SIMD-accelerated slow integer forward DCT and quantize routines for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1054 632fc199-4ca6-4c93-a231-07263d6284db

e5005917

2013-09-27T17:51:08

SIMD-accelerated 3/4 and 3/2 decompression scaling for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1047 632fc199-4ca6-4c93-a231-07263d6284db

2ccf4d1a

2013-09-27T17:43:23

SIMD-accelerated 1/2 and 1/4 decompression scaling for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1046 632fc199-4ca6-4c93-a231-07263d6284db

49eaa757

2013-09-27T17:39:57

SIMD-optimized RGB-to-grayscale conversion for MIPS DSPr2 git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1045 632fc199-4ca6-4c93-a231-07263d6284db

922b14b8

2013-09-25T17:33:37

Fix segfault in MIPS DSPr2 upsample routines that occurred when doing 'make test' git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1040 632fc199-4ca6-4c93-a231-07263d6284db

16962c11

2013-07-27T21:50:02

SIMD support for performing upsampling using MIPS DSPr2 instructions git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@996 632fc199-4ca6-4c93-a231-07263d6284db

6f2d3c2c

2013-07-27T21:48:18

SIMD support for performing downsampling using MIPS DSPr2 instructions git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@995 632fc199-4ca6-4c93-a231-07263d6284db

86fbf35f

2013-07-27T21:44:14

SIMD support for performing fancy upsampling using MIPS DSPr2 instructions git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@994 632fc199-4ca6-4c93-a231-07263d6284db

0be9fa57

2013-07-24T21:50:20

SIMD support for performing color conversion using MIPS DSPr2 instructions git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@993 632fc199-4ca6-4c93-a231-07263d6284db

kc3-lang/libjpeg-turbo/simd/jsimd_mips_dspr2.S

simd/jsimd_mips_dspr2.S

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