8be8111008
Patch suggested by Callum Lerwick <seg@haxxed.com>: "This makes the t1 data arrays dynamic, which greatly reduces cache thrashing. Also, some minor cleanup to prevent unnecessary casts"
2007-05-22 13:14:13 +00:00
1bec8fe082
Patch suggested by Callum Lerwick <seg@haxxed.com>: "Some formatting cleanups, so that the long function definitions and calls fit on screen. Use of prefix increment which is theoretically faster, in
...
practice any sane compiler can optimize a postfix increment but its best not to count on such things. Consolidation of some redundant calculations in the inner loops, which becomes very useful in the future autovectorize patch."
2007-05-21 13:08:10 +00:00
7d06d7fb5d
Patch suggested by Callum Lerwick <seg@haxxed.com>: "This changes the flag code in t1 to use a flag_t type, which can then be changed to reduce RAM usage. It is now typedef to a short."
2007-05-21 12:50:03 +00:00
e0ee9becb4
Patch suggested by Callum Lerwick <seg@haxxed.com>: "This patch makes the t1 LUTs static. I actually intend this as a prelude to possibly eliminating some or all of the LUTs entirely."
2007-05-21 09:44:10 +00:00
0930d9886b
fix.h, dwt.c and t1.c optimized. Thanks a lot to Dzonatas <dzonatas at dzonux.net> and Callum Lerwick <seg at haxxed.com> for these great patches !
2007-04-05 14:24:19 +00:00
5a3c1ffe7d
Fixed an historical bug in t1.c that leaded to the inclusion of useless 0xFF in the codestream. Thanks to Sylvain, Pascal and Parvatha !
2007-03-28 08:44:21 +00:00
6045158ce6
Fixed j2k_prog_order_list[]. Modifications in j2k.c.
...
Fixed t1_decode_cblks. Modifications in t1.c.
2007-03-21 13:01:15 +00:00
7cb2194c8e
Algorithmic optimizations in t1.c, thanks to Guido J. !
2007-02-21 07:57:27 +00:00
ed3aec55fd
Copyright update
2007-01-15 09:55:40 +00:00
817681fb98
fixed a bug in t1.c that prevented in some cases a true lossless compression (thanks to Don Mimlitch for reporting this bug)
2006-03-19 18:51:32 +00:00
72de930d08
fixed two initialization problems in t1.c and tcd.c
2006-01-27 16:29:41 +00:00
fe33ebe83c
fixed a bug in t1_getwmsedec (stepsize was divided by 8192)
2005-12-08 11:01:59 +00:00
95bc884365
OpenJPEG version 1.1
2005-12-08 09:38:47 +00:00
f61cda9b7d
openjpeg version 1.0 (previous version still available with tag opj0-97)
2005-12-02 13:34:15 +00:00
0ea26e7ba6
small change to avoid signed/unsigned warning during compilation
2005-11-04 11:10:38 +00:00
8f3bd54c3d
Changes proposed by Mathieu Malaterre from the GDCM project... Thanks a lot Mathieu
...
- '//' replaced by '/* */'
- inclusion of int.h in int.c
- inclusion of j2k.h in int.h in order to export symbols
- adding (void) var when a variable is declared but not used
- some explicit cast
- CLOCKS_PER_SEC is declared as float in bcc55, so there is a need to cast it to int for the modulo operation
- some variables changed from float -> double
2005-11-01 10:15:34 +00:00
7ee36c3a4c
1) quantization stepsizes stored as float instead of shifted integers -> fixes a pb of precision when using very small stepsizes. 2) bug fixed when decoding until bitplane 0 -> r-value (1/2) added to the coefficient.
2005-10-27 07:49:29 +00:00
32ba9920db
At lines 577, 692 and 699, zeroing of effective region of code-block rather than the 1024*1024 allocated integers of code-block. This optimization has been proposed by Dmitry Kolyadin. Thanks for your help !
2005-06-02 15:28:37 +00:00
f9eb8f93c2
Code optimization: t1_flags and t1_data set to zero with memset
2005-05-24 12:15:52 +00:00
1bdb07cefe
fprintf correctly redirected to stderr or stdout
2004-11-15 12:41:35 +00:00
8d2121606d
Minor changes for RESET mode
2004-07-16 09:08:27 +00:00
bc563fc5ba
* Quantization bug fixed when using 9x7 DWT (comment keyword : quantizbug1)
...
* Multiplication bug fixed when dividing by 8192 (comment keyword : multbug1)
2004-07-13 09:17:17 +00:00
a4911967eb
* Fixed_quality option added : specifying -q psnr1,psnr2,psnr3,... at the command line when encoding an image generates layers with the corresponding psnr. You have to specify values in the increase order. This option is incompatible with "-r" or "-f" options.
...
* Old -q option is now available with -f
* The INDEX-file structure has been modified and is now like this :
------------------------------
image_width image_height
progression order
tile_width tile_height
nb_tiles_width nb_tiles_height
nb_components
nb_layers
nb_decompositions
foreach resolution_level {[precinct_width,precinct_height]}
main_header_end
codestream_size
foreach tile {
tileno start_pos end_header end_pos squarred_error_total nb_pixels mean_squarred_error
}
foreach tile {
foreach packet {
packetno tileno layerno resno compno precinctno start_pos end_pos SE_reduction
}
}
SE max
SE total
-----------------------------
2004-05-07 13:50:47 +00:00
64c34e0d52
Reformatage : indent -kr -i2 -ci2 $(find . -name '*.c') $(find . -name '*.h')
2004-04-29 13:27:24 +00:00
ec9bd9f6a4
Reformatage : indent -kr $(find . -name '*.c') $(find . -name '*.h')
2004-04-29 13:10:05 +00:00
bb349b2cee
Update for version 0.8
2004-02-13 09:47:40 +00:00
2ad6a9770a
Initial revision
2003-11-27 10:10:17 +00:00
Francois-Olivier Devaux
Parvatha Elangovan
Antonin Descampe
Sebastien Lugan
Yannick Verschueren