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| author | Tarja Sundqvist <tarja.sundqvist@qt.io> | 2024-01-04 21:21:43 +0200 |
|---|---|---|
| committer | Tarja Sundqvist <tarja.sundqvist@qt.io> | 2024-01-04 21:21:43 +0200 |
| commit | 4e158f6bfa7d0747d8da70b3b15a44b52e35bb8a (patch) | |
| tree | 84e20982138de5c9b6d319bf83ac79bd672f918f /src/3rdparty/libjpeg/src/jchuff.h | |
| parent | e4391422574aa9aa89fece74f16c07c609cbbae2 (diff) | |
| parent | a13fd415d689be046c13cc562cbbbb5df0e6506a (diff) | |
Merge remote-tracking branch 'origin/tqtc/lts-5.15.13' into tqtc/lts-5.15-opensourcev5.15.13-lts-lgpl
Change-Id: Ie9df84af22570d601db002e391a1a0d97e7cd9e1
Diffstat (limited to 'src/3rdparty/libjpeg/src/jchuff.h')
| -rw-r--r-- | src/3rdparty/libjpeg/src/jchuff.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/3rdparty/libjpeg/src/jchuff.h b/src/3rdparty/libjpeg/src/jchuff.h index 314a2325c9..da7809a94b 100644 --- a/src/3rdparty/libjpeg/src/jchuff.h +++ b/src/3rdparty/libjpeg/src/jchuff.h @@ -3,8 +3,8 @@ * * This file was part of the Independent JPEG Group's software: * Copyright (C) 1991-1997, Thomas G. Lane. - * It was modified by The libjpeg-turbo Project to include only code relevant - * to libjpeg-turbo. + * libjpeg-turbo Modifications: + * Copyright (C) 2022, D. R. Commander. * For conditions of distribution and use, see the accompanying README.ijg * file. * @@ -25,6 +25,14 @@ #define MAX_COEF_BITS 14 #endif +/* The progressive Huffman encoder uses an unsigned 16-bit data type to store + * absolute values of coefficients, because it is possible to inject a + * coefficient value of -32768 into the encoder by attempting to transform a + * malformed 12-bit JPEG image, and the absolute value of -32768 would overflow + * a signed 16-bit integer. + */ +typedef unsigned short UJCOEF; + /* Derived data constructed for each Huffman table */ typedef struct { |