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TurboJPEG: Add lossless JPEG detection capability

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Add a new TurboJPEG C API function (tjDecompressHeader4()) and Java API
method (TJDecompressor.getFlags()) that return the bitwise OR of any
flags that are relevant to the JPEG image being decompressed (currently
TJFLAG_PROGRESSIVE, TJFLAG_ARITHMETIC, TJFLAG_LOSSLESS, and their Java
equivalents.)  This allows a calling program to determine whether the
image being decompressed is a lossless JPEG image, which means that the
decompression scaling feature will not be available and that a
full-sized destination buffer should be allocated.

More specifically, this fixes a buffer overrun in TJBench, TJExample,
and the decompress* fuzz targets that occurred when attempting (in vain)
to decompress a lossless JPEG image with decompression scaling enabled.
This commit is contained in:
DRC
2022-11-21 20:57:39 -06:00
parent b85b028d2b
commit 98ff1fd103
32 changed files with 481 additions and 283 deletions
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4
doc/html/search/all_6.js
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@@ -22,7 +22,7 @@ var searchData=
['tjdecodeyuv_27',['tjDecodeYUV',['../group___turbo_j_p_e_g.html#ga70abbf38f77a26fd6da8813bef96f695',1,'turbojpeg.h']]],
['tjdecodeyuvplanes_28',['tjDecodeYUVPlanes',['../group___turbo_j_p_e_g.html#ga10e837c07fa9d25770565b237d3898d9',1,'turbojpeg.h']]],
['tjdecompress2_29',['tjDecompress2',['../group___turbo_j_p_e_g.html#gae9eccef8b682a48f43a9117c231ed013',1,'turbojpeg.h']]],
['tjdecompressheader3_30',['tjDecompressHeader3',['../group___turbo_j_p_e_g.html#ga0595681096bba7199cc6f3533cb25f77',1,'turbojpeg.h']]],
['tjdecompressheader4_30',['tjDecompressHeader4',['../group___turbo_j_p_e_g.html#gac104e6e729f57f195009405949d198dc',1,'turbojpeg.h']]],
['tjdecompresstoyuv2_31',['tjDecompressToYUV2',['../group___turbo_j_p_e_g.html#ga04d1e839ff9a0860dd1475cff78d3364',1,'turbojpeg.h']]],
['tjdecompresstoyuvplanes_32',['tjDecompressToYUVPlanes',['../group___turbo_j_p_e_g.html#gaa59f901a5258ada5bd0185ad59368540',1,'turbojpeg.h']]],
['tjdestroy_33',['tjDestroy',['../group___turbo_j_p_e_g.html#ga75f355fa27225ba1a4ee392c852394d2',1,'turbojpeg.h']]],
@@ -84,7 +84,7 @@ var searchData=
['tjsaveimage_89',['tjSaveImage',['../group___turbo_j_p_e_g.html#ga6f445b22d8933ae4815b3370a538d879',1,'turbojpeg.h']]],
['tjscaled_90',['TJSCALED',['../group___turbo_j_p_e_g.html#ga84878bb65404204743aa18cac02781df',1,'turbojpeg.h']]],
['tjscalingfactor_91',['tjscalingfactor',['../structtjscalingfactor.html',1,'']]],
['tjtransform_92',['tjtransform',['../structtjtransform.html',1,'tjtransform'],['../group___turbo_j_p_e_g.html#ga9cb8abf4cc91881e04a0329b2270be25',1,'tjTransform(tjhandle handle, const unsigned char *jpegBuf, unsigned long jpegSize, int n, unsigned char **dstBufs, unsigned long *dstSizes, tjtransform *transforms, int flags): turbojpeg.h'],['../group___turbo_j_p_e_g.html#ga504805ec0161f1b505397ca0118bf8fd',1,'tjtransform(): turbojpeg.h']]],
['tjtransform_92',['tjtransform',['../structtjtransform.html',1,'tjtransform'],['../group___turbo_j_p_e_g.html#ga504805ec0161f1b505397ca0118bf8fd',1,'tjtransform(): turbojpeg.h'],['../group___turbo_j_p_e_g.html#ga9cb8abf4cc91881e04a0329b2270be25',1,'tjTransform(tjhandle handle, const unsigned char *jpegBuf, unsigned long jpegSize, int n, unsigned char **dstBufs, unsigned long *dstSizes, tjtransform *transforms, int flags): turbojpeg.h']]],
['tjxop_93',['TJXOP',['../group___turbo_j_p_e_g.html#ga2de531af4e7e6c4f124908376b354866',1,'turbojpeg.h']]],
['tjxop_5fhflip_94',['TJXOP_HFLIP',['../group___turbo_j_p_e_g.html#gga2de531af4e7e6c4f124908376b354866aa0df69776caa30f0fa28e26332d311ce',1,'turbojpeg.h']]],
['tjxop_5fnone_95',['TJXOP_NONE',['../group___turbo_j_p_e_g.html#gga2de531af4e7e6c4f124908376b354866aad88c0366cd3f7d0eac9d7a3fa1c2c27',1,'turbojpeg.h']]],