Commit Graph

3005 Commits

Author SHA1 Message Date
Even Rouault 7017e67a01 sparse_array: optimizations for lossy case 2017-09-01 22:23:29 +02:00
Even Rouault b428b8c7e7 opj_tcd_rateallocate(): make sure to use all passes for a lossless layer (#1009)
And save a useless loop, which should be a tiny faster.
2017-09-01 20:02:09 +02:00
Even Rouault 7aa071aa27 opj_j2k_setup_encoder(): emit warnings if tcp_rates are not decreasing or tcp_distoratio are not increasing (#1009) 2017-09-01 19:49:01 +02:00
Even Rouault a538815c77 opj_j2k_setup_encoder(): avoid potential int overflow in computations related to max_cs_size 2017-09-01 19:27:56 +02:00
Even Rouault 09929bb615 opj_compress help: revert 3257261776 and indicate 1 again as being the value to get lossless for -r. In opj_j2k_setup_encoder(), make sure that ll rates[] <= 1.0 are set to 0. Document 0 as being lossless for -q / tcp_distoratio (#1009) 2017-09-01 19:16:35 +02:00
Even Rouault 3257261776 opj_compress help: indicate 0 value, instead of 1, for -r parameter to get lossless encoding (#1009) 2017-09-01 17:33:23 +02:00
Even Rouault 8a17be8945 opj_v4dwt_decode_step2_sse(): loop unroll 2017-09-01 16:31:08 +02:00
Even Rouault 83b5a168ec opj_dwt_decode_partial_97(): simplify/more efficient use of sparse arrays in vertical pass 2017-09-01 16:31:06 +02:00
Even Rouault ae19001ba4 opj_tcd_dc_level_shift_decode(): optimize lossy case 2017-09-01 16:31:04 +02:00
Even Rouault 470f3ed416 opj_dwt_decode_partial_1_parallel(): add SSE2 optimization 2017-09-01 16:31:02 +02:00
Even Rouault 873004c615 Sub-tile decoding: speed up vertical pass in IDWT5x3 by processing 4 cols at a time 2017-09-01 16:31:00 +02:00
Even Rouault ccac773556 Tiny perf improvement in T1 stage for subtile decoding 2017-09-01 16:30:58 +02:00
Even Rouault 18635df518 test_decode_area: accept user bounds in -strip_height mode 2017-09-01 16:30:56 +02:00
Even Rouault 82a43d8035 Optimize opj_dwt_decode_partial_1() when cas == 0 2017-09-01 16:30:54 +02:00
Even Rouault 1644665a91 opj_j2k_update_image_data(): avoid zero-ing the buffer if not needed 2017-09-01 16:30:52 +02:00
Even Rouault b2cc8f7f81 Optimize reading/write into sparse array 2017-09-01 16:30:50 +02:00
Even Rouault 0ae3cba340 Allow several repeated calls to opj_set_decode_area() and opj_decode() for single-tiled images
* Only works for single-tiled images --> will error out cleanly, as currently
  in other cases
* Save re-reading the codestream for the tile, and re-use code-blocks of the
  previous decoding pass.
* Future improvements might involve improving opj_decompress, and the image writing logic,
  to use this strategy.
2017-09-01 16:30:48 +02:00
Even Rouault 5d07d463fd opj_j2k_decode_tiles(): apply whole single tile image decoding optimization to reading at reduced resolution as well 2017-09-01 16:30:45 +02:00
Even Rouault 98b9310361 Various changes to allow tile buffers of more than 4giga pixels
Untested though, since that means a tile buffer of at least 16 GB. So
there might be places where uint32 overflow on multiplication still occur...
2017-09-01 16:30:44 +02:00
Even Rouault 008a12d4fc TCD: allow tile buffer to be greater than 4GB on 64 bit hosts (but number of pixels must remain under 4 billion) 2017-09-01 16:30:41 +02:00
Even Rouault d1299d9670 Fix compiler warning in release mode 2017-09-01 16:30:39 +02:00
Even Rouault d5153ba404 Remove limitation that prevents from opening images bigger than 4 billion pixels
However the intermediate buffer for decoding must still be smaller than 4
billion pixels, so this is useful for decoding at a lower resolution level,
or subtile decoding.
2017-09-01 16:30:37 +02:00
Even Rouault c37e360a51 opj_tcd_init_tile(): fix typo on overflow detection condition (introduced in previous commit) 2017-09-01 16:30:35 +02:00
Even Rouault eee5104a88 opj_dwt_decode_partial_tile(): avoid undefined behaviour in lifting operation by properly initializing working buffer 2017-09-01 16:30:32 +02:00
Even Rouault f9e9942330 Sub-tile decoding: only allocate tile component buffer of the needed dimension
Instead of being the full tile size.

* Use a sparse array mechanism to store code-blocks and intermediate stages of
  IDWT.
* IDWT, DC level shift and MCT stages are done just on that smaller array.
* Improve copy of tile component array to final image, by saving an intermediate
  buffer.
* For full-tile decoding at reduced resolution, only allocate the tile buffer to
  the reduced size, instead of the full-resolution size.
2017-09-01 16:30:29 +02:00
Even Rouault aa7198146b opj_compress: reorder checks related to code block dimensions, to avoid potential int overflow 2017-09-01 10:26:53 +02:00
Even Rouault 0a25dceca7 opj_j2k_setup_encoder(): validate code block width/height 2017-09-01 10:26:53 +02:00
Even Rouault 84bbb4a874 opj_t1_allocate_buffers(): remove useless overflow checks 2017-09-01 10:26:53 +02:00
Even Rouault 6ce49bf5ae Fix undefined shift behaviour in opj_dwt_is_whole_tile_decoding(). Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3255. Credit to OSS Fuzz 2017-09-01 10:26:18 +02:00
Even Rouault 04b70908a7 Use IDWT whole tile decoding if the area of interest equals to the image bounds, taking into account the reduced resolution factor 2017-08-29 11:40:53 +02:00
Even Rouault 4776b15fa7 Add test for fix of a55c024fc6 2017-08-28 18:08:13 +02:00
Even Rouault a55c024fc6 Subtile decoding: fix overflows in subband coordinate computation that cause later buffer overflow. Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3115. Credit to OSS Fuzz. master only 2017-08-28 17:18:33 +02:00
Even Rouault 8f92fc9791 Make opj_set_decode_area() and opj_decode() take into account opj_set_decoded_resolution_factor() (#1006, affect API use)
* Better document usage of opj_set_decode_area(), ie expecting coordinates
  in full resolution/reference grid even if requesting at a lower resolution
  factor
* Make sure that image->comps[].factor is set by opj_set_decode_area() and
  opj_decode() from the value specified in opj_set_decoded_resolution_factor()
* opj_decompress: add 2 environmenet variables to test alternate ways of
  using the API, namely USE_OPJ_SET_DECODED_RESOLUTION_FACTOR=YES to use
  opj_set_decoded_resolution_factor() instead of parameters.cp_reduce, and
  SKIP_OPJ_SET_DECODE_AREA=YES to not call opj_set_decode_area() if -d is
  not specified.
2017-08-28 14:57:49 +02:00
Even Rouault 5a4a10120a Another cleanup in knownfailures-* files 2017-08-24 14:38:24 +02:00
Even Rouault e0a5d148f7 Remove test steps from specialized knownfailures- that are already in knownfailures-all.txt 2017-08-24 14:32:36 +02:00
Even Rouault 79aa0b54dd issue104_jpxstream.jp2 decompresses just fine (and like Kakadu). Update md5refs.txt and remove from knownfailures 2017-08-24 14:31:13 +02:00
Even Rouault c059f431e6 Remove broken.jpc test from known failures, by avoiding too long processing time 2017-08-24 14:09:34 +02:00
Even Rouault 5146abc02e imagetopgx(): improve performance in 8 bit case (relates to broken.jpc test case) 2017-08-24 14:09:31 +02:00
Even Rouault fdcd4e6365 Remove -NR-DEC-p1_06.j2k-156-decode and NR-DEC-p1_06.j2k-164-decode from knownfailures
and make them explicit failures. The result images are empty at the requested resolution
2017-08-24 13:23:25 +02:00
Even Rouault bc71bd1219 opj_dwt_decode_partial_97(): perf improvement: limit copy of coefficients at end of horizontal pass to actual range of interest 2017-08-23 18:58:32 +02:00
Even Rouault 8180eeace1 test_tile_encoder: fix checks on argc 2017-08-21 23:06:53 +02:00
Even Rouault c97666f72b j2k.c: fix comment, and remove FIXME 2017-08-21 19:02:04 +02:00
Even Rouault 24d069e3ff Add comment 2017-08-21 17:19:13 +02:00
Even Rouault e9bbc6d3dd Merge pull request #1001 from rouault/subtile_decoding_stage2
Subtile decoding: only apply IDWT on areas that participate to the window of interest
2017-08-21 13:02:07 +02:00
Even Rouault 17a7ac42d5 Add comments for filter_width values 2017-08-21 12:25:38 +02:00
Even Rouault f87c5ef7eb Subtile decoding: only do 9x7 IDWT computations on relevant areas of tile-component buffer. 2017-08-20 22:02:41 +02:00
Even Rouault 3eed024eb4 pgxtoimage(): avoid excessive memory allocation attempt (#999) 2017-08-19 15:45:54 +02:00
Even Rouault 5d40325056 Subtile decoding: only do 5x3 IDWT computations on relevant areas of tile-component buffer.
This lowers 'bin/opj_decompress -i ../MAPA.jp2 -o out.tif -d 0,0,256,256'
down to 0.860s
2017-08-18 15:08:51 +02:00
Even Rouault e528531922 pgxtoimage(): fix write stack buffer overflow (#997) 2017-08-18 13:39:20 +02:00
Even Rouault 028c504a43 test_decode_area: fix to make it work with odd image dimensions 2017-08-18 12:30:11 +02:00