003759a482
Fix null pointer dereference on partial tile decoding when they are empty. Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3297 (master only)
2017-09-06 15:59:19 +02:00
968e36bbd9
Merge pull request #1010 from rouault/subtile_decoding_stage3
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Subtile decoding: memory use reduction and perf improvements
2017-09-05 22:18:58 +02:00
579b8937ea
Replace uses of size_t by OPJ_SIZE_T
2017-09-04 17:35:52 +02:00
3a382d3123
opj_getopt.c: avoid crash on invalid input ( #301 )
2017-09-03 00:30:36 +02:00
e5ab1682a1
Improve error message when specifying a too big cp_reduce parameter ( #474 )
2017-09-02 09:10:53 +02:00
c1e0fba0c4
opj_v4dwt_decode_step1_sse(): rework a bit to improve code generation
2017-09-01 22:23:29 +02:00
676d4c807f
opj_j2k_update_image_data(): avoid allocating image buffer if we can just reuse the tile buffer one
2017-09-01 22:23:29 +02:00
4c7effa6bc
opj_t1_clbl_decode_processor(): use SSE2 in subtile decoding code path, for irreversible
2017-09-01 22:23:29 +02:00
2c365fe0ec
Replace error message 'Not enough memory for tile data' by 'Size of tile data exceeds system limits' (refs https://github.com/uclouvain/openjpeg/pull/730#issuecomment-326654188 )
2017-09-01 22:23:29 +02:00
559d16e8f4
opj_t1_decode_cblk(): move some code to codeblock processor for (theoretical) better multi-threading in subtile decoding
2017-09-01 22:23:29 +02:00
7017e67a01
sparse_array: optimizations for lossy case
2017-09-01 22:23:29 +02:00
b428b8c7e7
opj_tcd_rateallocate(): make sure to use all passes for a lossless layer ( #1009 )
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And save a useless loop, which should be a tiny faster.
2017-09-01 20:02:09 +02:00
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
a538815c77
opj_j2k_setup_encoder(): avoid potential int overflow in computations related to max_cs_size
2017-09-01 19:27:56 +02:00
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
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
8a17be8945
opj_v4dwt_decode_step2_sse(): loop unroll
2017-09-01 16:31:08 +02:00
83b5a168ec
opj_dwt_decode_partial_97(): simplify/more efficient use of sparse arrays in vertical pass
2017-09-01 16:31:06 +02:00
ae19001ba4
opj_tcd_dc_level_shift_decode(): optimize lossy case
2017-09-01 16:31:04 +02:00
470f3ed416
opj_dwt_decode_partial_1_parallel(): add SSE2 optimization
2017-09-01 16:31:02 +02:00
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
ccac773556
Tiny perf improvement in T1 stage for subtile decoding
2017-09-01 16:30:58 +02:00
82a43d8035
Optimize opj_dwt_decode_partial_1() when cas == 0
2017-09-01 16:30:54 +02:00
1644665a91
opj_j2k_update_image_data(): avoid zero-ing the buffer if not needed
2017-09-01 16:30:52 +02:00
b2cc8f7f81
Optimize reading/write into sparse array
2017-09-01 16:30:50 +02:00
0ae3cba340
Allow several repeated calls to opj_set_decode_area() and opj_decode() for single-tiled images
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* 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
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
98b9310361
Various changes to allow tile buffers of more than 4giga pixels
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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
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
d1299d9670
Fix compiler warning in release mode
2017-09-01 16:30:39 +02:00
d5153ba404
Remove limitation that prevents from opening images bigger than 4 billion pixels
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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
c37e360a51
opj_tcd_init_tile(): fix typo on overflow detection condition (introduced in previous commit)
2017-09-01 16:30:35 +02:00
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
f9e9942330
Sub-tile decoding: only allocate tile component buffer of the needed dimension
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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
aa7198146b
opj_compress: reorder checks related to code block dimensions, to avoid potential int overflow
2017-09-01 10:26:53 +02:00
0a25dceca7
opj_j2k_setup_encoder(): validate code block width/height
2017-09-01 10:26:53 +02:00
84bbb4a874
opj_t1_allocate_buffers(): remove useless overflow checks
2017-09-01 10:26:53 +02:00
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
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
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
8f92fc9791
Make opj_set_decode_area() and opj_decode() take into account opj_set_decoded_resolution_factor() ( #1006 , affect API use)
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* 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
5146abc02e
imagetopgx(): improve performance in 8 bit case (relates to broken.jpc test case)
2017-08-24 14:09:31 +02:00
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
c97666f72b
j2k.c: fix comment, and remove FIXME
2017-08-21 19:02:04 +02:00
24d069e3ff
Add comment
2017-08-21 17:19:13 +02:00
e9bbc6d3dd
Merge pull request #1001 from rouault/subtile_decoding_stage2
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Subtile decoding: only apply IDWT on areas that participate to the window of interest
2017-08-21 13:02:07 +02:00
17a7ac42d5
Add comments for filter_width values
2017-08-21 12:25:38 +02:00
f87c5ef7eb
Subtile decoding: only do 9x7 IDWT computations on relevant areas of tile-component buffer.
2017-08-20 22:02:41 +02:00
3eed024eb4
pgxtoimage(): avoid excessive memory allocation attempt ( #999 )
2017-08-19 15:45:54 +02:00
5d40325056
Subtile decoding: only do 5x3 IDWT computations on relevant areas of tile-component buffer.
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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
Even Rouault