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| 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 /jcphuff.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 'jcphuff.c')
| -rw-r--r-- | jcphuff.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -43,10 +43,10 @@ * memory footprint by 64k, which is important for some mobile applications * that create many isolated instances of libjpeg-turbo (web browsers, for * instance.) This may improve performance on some mobile platforms as well. - * This feature is enabled by default only on ARM processors, because some x86 + * This feature is enabled by default only on Arm processors, because some x86 * chips have a slow implementation of bsr, and the use of clz/bsr cannot be * shown to have a significant performance impact even on the x86 chips that - * have a fast implementation of it. When building for ARMv6, you can + * have a fast implementation of it. When building for Armv6, you can * explicitly disable the use of clz/bsr by adding -mthumb to the compiler * flags (this defines __thumb__). */ |