common.h

uclinux 下的vlc播放器源代码

/*****************************************************************************
 * common.h: a few defines and wrappers for swscale
 *****************************************************************************
 * Copyright (C) 1999-2004 the VideoLAN team
 * $Id: common.h 13905 2006-01-12 23:10:04Z dionoea $
 *
 * Authors: Gildas Bazin <[e-mail]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

#define mp_msg(a,b,args... ) //fprintf(stderr, ##args)
#define vo_format_name(a) ""

#ifndef _VLC_FILTER_H
extern void *( *swscale_fast_memcpy )( void *, const void *, int );
#endif
#define memcpy(a,b,c) swscale_fast_memcpy(a,b,c)

#if defined(__CYGWIN__) || defined(__MINGW32__) || defined(__OS2__) || \
   (defined(__OpenBSD__) && !defined(__ELF__))
#define MANGLE(a) "_" #a
#else
#define MANGLE(a) #a
#endif

#ifdef ARCH_X86
static inline unsigned short ByteSwap16(unsigned short x)
{
  __asm("xchgb %b0,%h0" :
        "=q" (x)        :
        "0" (x));
    return x;
}
#define bswap_16(x) ByteSwap16(x)
#else

#define bswap_16(x) (((x) & 0x00ff) << 8 | ((x) & 0xff00) >> 8)
#endif  /* !ARCH_X86 */

/* SWSCALE image formats */
#define IMGFMT_RGB_MASK 0xFFFFFF00
#define IMGFMT_RGB (('R'<<24)|('G'<<16)|('B'<<8))
#define IMGFMT_RGB1  (IMGFMT_RGB|1)
#define IMGFMT_RGB4  (IMGFMT_RGB|4)
#define IMGFMT_RGB4_CHAR  (IMGFMT_RGB|4|128) // RGB4 with 1 pixel per byte
#define IMGFMT_RGB8  (IMGFMT_RGB|8)
#define IMGFMT_RGB15 (IMGFMT_RGB|15)
#define IMGFMT_RGB16 (IMGFMT_RGB|16)
#define IMGFMT_RGB24 (IMGFMT_RGB|24)
#define IMGFMT_RGB32 (IMGFMT_RGB|32)

#define IMGFMT_BGR_MASK 0xFFFFFF00
#define IMGFMT_BGR (('B'<<24)|('G'<<16)|('R'<<8))
#define IMGFMT_BGR1 (IMGFMT_BGR|1)
#define IMGFMT_BGR4 (IMGFMT_BGR|4)
#define IMGFMT_BGR4_CHAR (IMGFMT_BGR|4|128) // BGR4 with 1 pixel per byte
#define IMGFMT_BGR8 (IMGFMT_BGR|8)
#define IMGFMT_BGR15 (IMGFMT_BGR|15)
#define IMGFMT_BGR16 (IMGFMT_BGR|16)
#define IMGFMT_BGR24 (IMGFMT_BGR|24)
#define IMGFMT_BGR32 (IMGFMT_BGR|32)

#ifdef WORDS_BIGENDIAN
#define IMGFMT_ABGR IMGFMT_RGB32
#define IMGFMT_BGRA (IMGFMT_RGB32|64)
#define IMGFMT_ARGB IMGFMT_BGR32
#define IMGFMT_RGBA (IMGFMT_BGR32|64)
#else
#define IMGFMT_ABGR (IMGFMT_BGR32|64)
#define IMGFMT_BGRA IMGFMT_BGR32
#define IMGFMT_ARGB (IMGFMT_RGB32|64)
#define IMGFMT_RGBA IMGFMT_RGB32
#endif

/* old names for compatibility */
#define IMGFMT_RG4B  IMGFMT_RGB4_CHAR
#define IMGFMT_BG4B  IMGFMT_BGR4_CHAR

#define IMGFMT_IS_RGB(fmt) (((fmt)&IMGFMT_RGB_MASK)==IMGFMT_RGB)
#define IMGFMT_IS_BGR(fmt) (((fmt)&IMGFMT_BGR_MASK)==IMGFMT_BGR)

#define IMGFMT_RGB_DEPTH(fmt) ((fmt)&0x3F)
#define IMGFMT_BGR_DEPTH(fmt) ((fmt)&0x3F)

/* Planar YUV Formats */
#define IMGFMT_YVU9 0x39555659
#define IMGFMT_IF09 0x39304649
#define IMGFMT_YV12 0x32315659
#define IMGFMT_I420 0x30323449
#define IMGFMT_IYUV 0x56555949
#define IMGFMT_CLPL 0x4C504C43
#define IMGFMT_Y800 0x30303859
#define IMGFMT_Y8   0x20203859
#define IMGFMT_NV12 0x3231564E
#define IMGFMT_NV21 0x3132564E

/* unofficial Planar Formats, FIXME if official 4CC exists */
#define IMGFMT_444P 0x50343434
#define IMGFMT_422P 0x50323234
#define IMGFMT_411P 0x50313134
#define IMGFMT_HM12 0x32314D48

/* Packed YUV Formats */
#define IMGFMT_IUYV 0x56595549
#define IMGFMT_IY41 0x31435949
#define IMGFMT_IYU1 0x31555949
#define IMGFMT_IYU2 0x32555949
#define IMGFMT_UYVY 0x59565955
#define IMGFMT_UYNV 0x564E5955
#define IMGFMT_cyuv 0x76757963
#define IMGFMT_Y422 0x32323459
#define IMGFMT_YUY2 0x32595559
#define IMGFMT_YUNV 0x564E5559
#define IMGFMT_YVYU 0x55595659
#define IMGFMT_Y41P 0x50313459
#define IMGFMT_Y211 0x31313259
#define IMGFMT_Y41T 0x54313459
#define IMGFMT_Y42T 0x54323459
#define IMGFMT_V422 0x32323456
#define IMGFMT_V655 0x35353656
#define IMGFMT_CLJR 0x524A4C43
#define IMGFMT_YUVP 0x50565559
#define IMGFMT_UYVP 0x50565955