diff options
| author | Jonathan Wright <jonathan.wright@arm.com> | 2020-11-25 13:36:43 +0000 |
|---|---|---|
| committer | Jonathan Wright <jonathan.wright@arm.com> | 2020-11-30 12:08:32 +0000 |
| commit | bbb828223e9c8f83f0e84db1e98b116029e62765 (patch) | |
| tree | d2467975e2bf1442216d2c779054102ee37f599c /jdmaster.c | |
| parent | d5148db386ceb4a608058320071cbed890bd6ad2 (diff) | |
Update libjpeg-turbo to v2.0.90 (2.1 beta1)
Update Chromium's copy of libjpeg-turbo to the latest upstream
release (v2.0.90) and re-apply our local changes documented in
README.chromium.
Cherry-pick two additional changes from upstream to fix bugs found
by fuzzers:
1) https://github.com/libjpeg-turbo/libjpeg-turbo/commit/ccaba5d7894ecfb5a8f11e48d3f86e1f14d5a469
2) https://github.com/libjpeg-turbo/libjpeg-turbo/commit/c7ca521bc85b57d41d3ad4963c13fc0100481084
Significant changes provided by this update:
1) A large performance boost to JPEG encoding due to an improved
Huffman encoding implementation.
2) The complete removal of Arm Neon assembly code. This allows Arm's
control-flow integrity security features (Armv8.3-A Pointer
Authentication and Armv8.5-A Branch Target Identification) to be
switched on with the appropriate compiler flags.
Bug: 922430
Bug: b/135180511
Bug: 919548, 1145581
Change-Id: I319fcdc55b3fd5b219425c07a4e4a03587f4e06d
Diffstat (limited to 'jdmaster.c')
| -rw-r--r-- | jdmaster.c | 15 |
1 files changed, 2 insertions, 13 deletions
@@ -5,7 +5,7 @@ * Copyright (C) 1991-1997, Thomas G. Lane. * Modified 2002-2009 by Guido Vollbeding. * libjpeg-turbo Modifications: - * Copyright (C) 2009-2011, 2016, D. R. Commander. + * Copyright (C) 2009-2011, 2016, 2019, D. R. Commander. * Copyright (C) 2013, Linaro Limited. * Copyright (C) 2015, Google, Inc. * For conditions of distribution and use, see the accompanying README.ijg @@ -22,7 +22,6 @@ #include "jpeglib.h" #include "jpegcomp.h" #include "jdmaster.h" -#include "jsimd.h" /* @@ -70,17 +69,6 @@ use_merged_upsample(j_decompress_ptr cinfo) cinfo->comp_info[1]._DCT_scaled_size != cinfo->_min_DCT_scaled_size || cinfo->comp_info[2]._DCT_scaled_size != cinfo->_min_DCT_scaled_size) return FALSE; -#ifdef WITH_SIMD - /* If YCbCr-to-RGB color conversion is SIMD-accelerated but merged upsampling - isn't, then disabling merged upsampling is likely to be faster when - decompressing YCbCr JPEG images. */ - if (!jsimd_can_h2v2_merged_upsample() && !jsimd_can_h2v1_merged_upsample() && - jsimd_can_ycc_rgb() && cinfo->jpeg_color_space == JCS_YCbCr && - (cinfo->out_color_space == JCS_RGB || - (cinfo->out_color_space >= JCS_EXT_RGB && - cinfo->out_color_space <= JCS_EXT_ARGB))) - return FALSE; -#endif /* ??? also need to test for upsample-time rescaling, when & if supported */ return TRUE; /* by golly, it'll work... */ #else @@ -580,6 +568,7 @@ master_selection(j_decompress_ptr cinfo) */ cinfo->master->first_iMCU_col = 0; cinfo->master->last_iMCU_col = cinfo->MCUs_per_row - 1; + cinfo->master->last_good_iMCU_row = 0; #ifdef D_MULTISCAN_FILES_SUPPORTED /* If jpeg_start_decompress will read the whole file, initialize |