third_party_ffmpeg/libavcodec/high_bit_depth.h
Ronald S. Bultje 2caf19e90f h264pred: fix aliasing violations.
Tested to fix Haiku H264/10bit fate failures, may also fix others.
2011-05-11 06:59:16 -04:00

89 lines
2.1 KiB
C

#include "dsputil.h"
#ifndef BIT_DEPTH
#define BIT_DEPTH 8
#endif
#ifdef AVCODEC_H264_HIGH_DEPTH_H
# undef pixel
# undef pixel2
# undef pixel4
# undef dctcoef
# undef INIT_CLIP
# undef no_rnd_avg_pixel4
# undef rnd_avg_pixel4
# undef AV_RN2P
# undef AV_RN4P
# undef AV_RN4PA
# undef AV_WN2P
# undef AV_WN4P
# undef AV_WN4PA
# undef CLIP
# undef FUNC
# undef FUNCC
# undef av_clip_pixel
# undef PIXEL_SPLAT_X4
#else
# define AVCODEC_H264_HIGH_DEPTH_H
# define CLIP_PIXEL(depth)\
static inline uint16_t av_clip_pixel_ ## depth (int p)\
{\
const int pixel_max = (1 << depth)-1;\
return (p & ~pixel_max) ? (-p)>>31 & pixel_max : p;\
}
CLIP_PIXEL( 9)
CLIP_PIXEL(10)
#endif
#if BIT_DEPTH > 8
# define pixel uint16_t
# define pixel2 uint32_t
# define pixel4 uint64_t
# define dctcoef int32_t
# define INIT_CLIP
# define no_rnd_avg_pixel4 no_rnd_avg64
# define rnd_avg_pixel4 rnd_avg64
# define AV_RN2P AV_RN32
# define AV_RN4P AV_RN64
# define AV_RN4PA AV_RN64A
# define AV_WN2P AV_WN32
# define AV_WN4P AV_WN64
# define AV_WN4PA AV_WN64A
# define PIXEL_SPLAT_X4(x) ((x)*0x0001000100010001ULL)
#else
# define pixel uint8_t
# define pixel2 uint16_t
# define pixel4 uint32_t
# define dctcoef int16_t
# define INIT_CLIP uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
# define no_rnd_avg_pixel4 no_rnd_avg32
# define rnd_avg_pixel4 rnd_avg32
# define AV_RN2P AV_RN16
# define AV_RN4P AV_RN32
# define AV_RN4PA AV_RN32A
# define AV_WN2P AV_WN16
# define AV_WN4P AV_WN32
# define AV_WN4PA AV_WN32A
# define PIXEL_SPLAT_X4(x) ((x)*0x01010101U)
#endif
#if BIT_DEPTH == 8
# define av_clip_pixel(a) av_clip_uint8(a)
# define CLIP(a) cm[a]
# define FUNC(a) a ## _8
# define FUNCC(a) a ## _8_c
#elif BIT_DEPTH == 9
# define av_clip_pixel(a) av_clip_pixel_9(a)
# define CLIP(a) av_clip_pixel_9(a)
# define FUNC(a) a ## _9
# define FUNCC(a) a ## _9_c
#elif BIT_DEPTH == 10
# define av_clip_pixel(a) av_clip_pixel_10(a)
# define CLIP(a) av_clip_pixel_10(a)
# define FUNC(a) a ## _10
# define FUNCC(a) a ## _10_c
#endif