This saves comparing the current pointer with the end of buffer pointer.
This results at least in tiny speed improvement for raw decoding, and
smaller code size for MQC as well.
This kills the remains of the raw.h/.c files that were only used for
decoding. Encoding using the mqc structure already.
Ported from Carl Hetherington work (actually through Matthieu Darbois's port
on top of OpenJPEG 2.1.0)
Can reduce total encoding time by 10-15%
WARNING: VSC mode is not implemented, and so is a temporary regression
that must be fixed.
Decoding some valid .jp2 files like Sentinel2 datasets leads to warnings like:
No incltree created.
tgt_create tree->numnodes == 0, no tree created.
No imsbtree created.
tgt_create tree->numnodes == 0, no tree created.
Besides that, the image is correctly decoded. So there is no reason to emit
those warnings.
* test_tile_decoder: Fix potential buffer overflow (coverity)
CID 1190155 (#1 of 1): Unbounded source buffer (STRING_SIZE)
Using a pointer instead of buffer of fixed size avoids the limit
for the length of the input file name.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
* test_tile_encoder: Fix potential buffer overflow (coverity)
CID 1190154 (#1 of 1): Unbounded source buffer (STRING_SIZE)
Using a pointer instead of buffer of fixed size avoids the limit
for the length of the output file name. This implies that the length
can exceed 255, so the data type for variable len had to be fixed, too.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
* openjpip: Initialize data before returning it
This fixes an error reported by Coverity:
CID 1190143 (#1 of 1): Uninitialized scalar variable (UNINIT)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
* query_parser: Fix potential out-of-bounds read (coverity)
CID 1190207 (#1 of 1): Out-of-bounds read (OVERRUN)
Variable i must be checked before testing query_param.box_type.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
* jpip_parser: Fix potential out-of-bounds read (coverity)
CID 1190206 (#1 of 1): Out-of-bounds read (OVERRUN)
Variable i must be checked before testing query_param.box_type.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Visual Studio 2015 does not pass regression tests with `__restrict` so kept disabled for MSVC.
Need to check proper usage of OPJ_RESTRICT (if correct then there’s
probably a bug in vc14)
Closes#661
The definition of bit-fields with type OPJ_UINT32 caused complilation errors
on IBM iSeries, because OPJ_UINT32 is defined as uint32_t, and
uint32_t is defined as unsigned long in <stdint.h>. The definition of
bit-fields with an integer type of a specific size doesn't make sense
anyway.
The type casts which used this data type can be removed by changing
the signature of function swap16. As this function is called with
unsigned variables, this change is reasonable.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
openjpeg provides libopenjp2.pc, so the require statements must refer to
libopenjp2 instead of openjp2.
Fixes#594
Signed-off-by: Stefan Weil <sw@weilnetz.de>
By default, only the main thread is used. If opj_codec_set_threads() is not used,
but the OPJ_NUM_THREADS environment variable is set, its value will be
used to initialize the number of threads. The value can be either an integer
number, or "ALL_CPUS". If OPJ_NUM_THREADS is set and this function is called,
this function will override the behaviour of the environment variable.
Addition flag array such that colflags[1+0] is for state of col=0,row=0..3,
colflags[1+1] for col=1, row=0..3, colflags[1+flags_stride] for col=0,row=4..7, ...
This array avoids too much cache trashing when processing by 4 vertical samples
as done in the various decoding steps.
Add a opj_t1_dec_clnpass_step_only_if_flag_not_sig_visit() method that
does the job of opj_t1_dec_clnpass_step_only() assuming the conditions
are met. And use it in opj_t1_dec_clnpass(). The compiler generates
more efficient code.
Fix issue 135
The fix is legal regarding the standard but I did not manage to find out if it covers a bug in opj_t2_read_packet_data or if the file is corrupted
42x Images with an odd x0/y0 lead to subsampled component starting at the
2nd column/line.
That is offset = comp->dx * comp->x0 - image->x0 = 1
Fix#726
When all components do not have the same dx/dy, components buffer are
read beyond their end.
Do not convert in this case.
Update uclouvain/openjpeg#725
* Fix unsigned int overflow reported by UBSan
Please add -DOPJ_UBSAN_BUILD to CFLAGS when building with
-fsanitize=undefined,unsigned-integer-overflow
It seems clang/gcc do not allow to disable checking for block of code
other than function or file.
dwt_interleave_h.gsr105.jp2 now has the same output as kakadu
issue399 is corrupted. Only the corrupted part changes.
Update known failures for x86 MD5
NR-DEC-kodak_2layers_lrcp.j2c-31-decode-md5
NR-DEC-kodak_2layers_lrcp.j2c-32-decode-md5
NR-DEC-issue135.j2k-68-decode-md5
Follow-up of #757
This shall have no performance impact on 2’s complement machine where
the compiler replaces the multiplication by power of two (constant) by
a left shift.
Verified at least on MacOS Xcode 7.3, same assembly generated after fix.
This shall have no performance impact on 2’s complement machine where
the compiler replaces the multiplication by power of two (constant) by
a left shift.
Verified at least on MacOS Xcode 7.3, same assembly generated after fix.
When trying the GDAL OpenJPEG driver against openjpeg current master HEAD,
I get failures when trying to create .jp2 files. The driver uses
opj_write_tile() and in some tests numresolutions = 1.
In openjp2/dwt.c:410, l_data_size = opj_dwt_max_resolution( tilec->resolutions,tilec->numresolutions) * (OPJ_UINT32)sizeof(OPJ_INT32);
is called and returns l_data_size = 0. Now in git opj_malloc() has a special case
for 0 to return a NULL pointer whereas previously it relied on system malloc(),
which in my case didn't return NULL.
So only test the pointer value if l_data_size != 0. This makes the GDAL
autotest suite to pass again.
By default, OpenJPEG uses the function memalign to allocate aligned
memory on Linux systems. That function needs malloc.h which was
missing. This results in a compiler warning:
openjpeg/src/lib/openjp2/opj_malloc.c:63:3: warning:
implicit declaration of function ‘memalign’
[-Wimplicit-function-declaration]
On hosts where sizeof(int) < sizeof(void *) the return value of memalign
will be truncated which results in an invalid pointer.
That caused "make test" to produce lots of segmentation faults when
running on a 64 bit Linux host.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
posix_memalign is only declared conditionally in stdlib.h,
so add one of the possible definitions to get the declaration.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
The png format is also supported, so add it to the message.
Remove also the unneeded blank character before \n.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Fix this and other similar compiler warnings:
src/bin/jp2/convert.c: In function ‘tga_readheader’:
src/bin/jp2/convert.c:595:5: warning:
dereferencing type-punned pointer will break strict-aliasing rules
[-Wstrict-aliasing]
cmap_len = get_ushort(*(unsigned short*)(&tga[5]));
Signed-off-by: Stefan Weil <sw@weilnetz.de>
HP compiler warns:
cc: "dwt.c", line 798: warning 562: Redeclaration of "opj_v4dwt_decode"
with a different storage class specifier: "opj_v4dwt_decode" will have
internal linkage.
cc: "t2.c", line 1341: warning 562: Redeclaration of "opj_t2_init_seg"
with a different storage class specifier: "opj_t2_init_seg" will have
internal linkage.
The static code analyzer cppcheck warns about unsigned integers
which use "%d" in the format string.
It also warns about an unneeded assignment.
Fix both issues.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
if (!JPWL_ASSUME)
return false;
meaning that once JPWL_ASSUME=1 the code will pass over such errors and try to decode anyway (just paired with the other JPWL_ASSUME on line 1112).
Fixes#596
Even Rouault
Russell McOrmond
Mathieu Malaterre
Matthieu Darbois
Stefan Weil
Antonin Descampe
trylab
Stephan Mühlstrasser
Stephan Mühlstrasser
maddin200
Kal Conley
Julien Malik
julienmalik
Aaron Boxer
Jakub Wilk
Giuseppe Baruffa