diff options
Diffstat (limited to 'src/3rdparty/libjpeg/src/jmorecfg.h')
| -rw-r--r-- | src/3rdparty/libjpeg/src/jmorecfg.h | 80 |
1 files changed, 22 insertions, 58 deletions
diff --git a/src/3rdparty/libjpeg/src/jmorecfg.h b/src/3rdparty/libjpeg/src/jmorecfg.h index d0b930079a..89c7842c87 100644 --- a/src/3rdparty/libjpeg/src/jmorecfg.h +++ b/src/3rdparty/libjpeg/src/jmorecfg.h @@ -4,8 +4,10 @@ * This file was part of the Independent JPEG Group's software: * Copyright (C) 1991-1997, Thomas G. Lane. * Modified 1997-2009 by Guido Vollbeding. + * Lossless JPEG Modifications: + * Copyright (C) 1999, Ken Murchison. * libjpeg-turbo Modifications: - * Copyright (C) 2009, 2011, 2014-2015, 2018, D. R. Commander. + * Copyright (C) 2009, 2011, 2014-2015, 2018, 2020, 2022, D. R. Commander. * For conditions of distribution and use, see the accompanying README.ijg * file. * @@ -41,45 +43,29 @@ * arrays is very slow on your hardware, you might want to change these. */ -#if BITS_IN_JSAMPLE == 8 -/* JSAMPLE should be the smallest type that will hold the values 0..255. - * You can use a signed char by having GETJSAMPLE mask it with 0xFF. - */ - -#ifdef HAVE_UNSIGNED_CHAR +/* JSAMPLE should be the smallest type that will hold the values 0..255. */ typedef unsigned char JSAMPLE; #define GETJSAMPLE(value) ((int)(value)) -#else /* not HAVE_UNSIGNED_CHAR */ +#define MAXJSAMPLE 255 +#define CENTERJSAMPLE 128 -typedef char JSAMPLE; -#ifdef __CHAR_UNSIGNED__ -#define GETJSAMPLE(value) ((int)(value)) -#else -#define GETJSAMPLE(value) ((int)(value) & 0xFF) -#endif /* __CHAR_UNSIGNED__ */ -#endif /* HAVE_UNSIGNED_CHAR */ +/* J12SAMPLE should be the smallest type that will hold the values 0..4095. */ -#define MAXJSAMPLE 255 -#define CENTERJSAMPLE 128 +typedef short J12SAMPLE; -#endif /* BITS_IN_JSAMPLE == 8 */ +#define MAXJ12SAMPLE 4095 +#define CENTERJ12SAMPLE 2048 -#if BITS_IN_JSAMPLE == 12 -/* JSAMPLE should be the smallest type that will hold the values 0..4095. - * On nearly all machines "short" will do nicely. - */ - -typedef short JSAMPLE; -#define GETJSAMPLE(value) ((int)(value)) +/* J16SAMPLE should be the smallest type that will hold the values 0..65535. */ -#define MAXJSAMPLE 4095 -#define CENTERJSAMPLE 2048 +typedef unsigned short J16SAMPLE; -#endif /* BITS_IN_JSAMPLE == 12 */ +#define MAXJ16SAMPLE 65535 +#define CENTERJ16SAMPLE 32768 /* Representation of a DCT frequency coefficient. @@ -97,22 +83,9 @@ typedef short JCOEF; * managers, this is also the data type passed to fread/fwrite. */ -#ifdef HAVE_UNSIGNED_CHAR - typedef unsigned char JOCTET; #define GETJOCTET(value) (value) -#else /* not HAVE_UNSIGNED_CHAR */ - -typedef char JOCTET; -#ifdef __CHAR_UNSIGNED__ -#define GETJOCTET(value) (value) -#else -#define GETJOCTET(value) ((value) & 0xFF) -#endif /* __CHAR_UNSIGNED__ */ - -#endif /* HAVE_UNSIGNED_CHAR */ - /* These typedefs are used for various table entries and so forth. * They must be at least as wide as specified; but making them too big @@ -123,23 +96,11 @@ typedef char JOCTET; /* UINT8 must hold at least the values 0..255. */ -#ifdef HAVE_UNSIGNED_CHAR typedef unsigned char UINT8; -#else /* not HAVE_UNSIGNED_CHAR */ -#ifdef __CHAR_UNSIGNED__ -typedef char UINT8; -#else /* not __CHAR_UNSIGNED__ */ -typedef short UINT8; -#endif /* __CHAR_UNSIGNED__ */ -#endif /* HAVE_UNSIGNED_CHAR */ /* UINT16 must hold at least the values 0..65535. */ -#ifdef HAVE_UNSIGNED_SHORT typedef unsigned short UINT16; -#else /* not HAVE_UNSIGNED_SHORT */ -typedef unsigned int UINT16; -#endif /* HAVE_UNSIGNED_SHORT */ /* INT16 must hold at least the values -32768..32767. */ @@ -273,22 +234,24 @@ typedef int boolean; /* Capability options common to encoder and decoder: */ -#define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */ -#define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */ -#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */ +#define DCT_ISLOW_SUPPORTED /* accurate integer method */ +#define DCT_IFAST_SUPPORTED /* less accurate int method [legacy feature] */ +#define DCT_FLOAT_SUPPORTED /* floating-point method [legacy feature] */ /* Encoder capability options: */ #define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ #define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ +#define C_LOSSLESS_SUPPORTED /* Lossless JPEG? */ #define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */ /* Note: if you selected 12-bit data precision, it is dangerous to turn off * ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only good for 8-bit * precision, so jchuff.c normally uses entropy optimization to compute * usable tables for higher precision. If you don't want to do optimization, * you'll have to supply different default Huffman tables. - * The exact same statements apply for progressive JPEG: the default tables - * don't work for progressive mode. (This may get fixed, however.) + * The exact same statements apply for progressive and lossless JPEG: + * the default tables don't work for progressive mode or lossless mode. + * (This may get fixed, however.) */ #define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */ @@ -296,6 +259,7 @@ typedef int boolean; #define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ #define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ +#define D_LOSSLESS_SUPPORTED /* Lossless JPEG? */ #define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */ #define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */ #define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? */ |