/*
 * This file was stolen from ffmpeg and modified for usability here.
 *  The original does not have a "copyright by" line.
 *
 * This version is a derivative work of that version.  It is not free
 *  software; it is licensed under the GNU Lesser General Public
 *  License version 2.1, which places nontrivial restrictions on what
 *  may be done with it.  (I'm not terribly happy about that, but for
 *  my purposes accepting LGPL-infected code is a lower price than
 *  reimplementing it all myself.)
 *
 * The LGPL v2.1 as distributed with ffmpeg is in the accompanying file
 *  `LGPL-v2.1'.
 */

#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
#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)

#   define av_clip_pixel(a) av_clip_uintp2(a, BIT_DEPTH)
#   define CLIP(a)          av_clip_uintp2(a, BIT_DEPTH)
#else
#   define pixel  uint8_t
#   define pixel2 uint16_t
#   define pixel4 uint32_t
#   define dctcoef int16_t

#   define INIT_CLIP
#   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)

#   define av_clip_pixel(a) av_clip_uint8(a)
#   define CLIP(a) av_clip_uint8(a)
#endif

#define FUNC3(a, b, c)  a ## _ ## b ## c
#define FUNC2(a, b, c)  FUNC3(a, b, c)
#define FUNC(a)  FUNC2(a, BIT_DEPTH,)
#define FUNCC(a) FUNC2(a, BIT_DEPTH, _c)