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vlc/modules/video_chroma/i422_yuy2.c
Sam Hocevar 19ea8feb6d * ./modules/*: moved plugins to the new tree. Yet untested builds include 
waveout, directx, qnx, beos, win32, macosx, and the AltiVec modules.
  * ALL: removed mention of AC3 in favour of A52.
  * ./configure.in, ./Makefile*: modules can now be built deeper than 1
    directory. As a consequence, the build is even slower (but I'm fixing
    this) and make clean doesn't work anymore.
2002-08-04 17:23:44 +00:00

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/*****************************************************************************
* i422_yuy2.c : YUV to YUV conversion module for vlc
*****************************************************************************
* Copyright (C) 2000, 2001 VideoLAN
* $Id: i422_yuy2.c,v 1.1 2002/08/04 17:23:43 sam Exp $
*
* Authors: Samuel Hocevar <sam@zoy.org>
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <errno.h> /* ENOMEM */
#include <string.h> /* strerror() */
#include <stdlib.h> /* malloc(), free() */
#include <vlc/vlc.h>
#include <vlc/vout.h>
#include "i422_yuy2.h"
#define SRC_FOURCC "I422"
#if defined (MODULE_NAME_IS_i422_yuy2)
# define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv,Y211"
#else
# define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv"
#endif
/*****************************************************************************
* Local and extern prototypes.
*****************************************************************************/
static int Activate ( vlc_object_t * );
static void I422_YUY2 ( vout_thread_t *, picture_t *, picture_t * );
static void I422_YVYU ( vout_thread_t *, picture_t *, picture_t * );
static void I422_UYVY ( vout_thread_t *, picture_t *, picture_t * );
static void I422_IUYV ( vout_thread_t *, picture_t *, picture_t * );
static void I422_cyuv ( vout_thread_t *, picture_t *, picture_t * );
#if defined (MODULE_NAME_IS_i422_yuy2)
static void I422_Y211 ( vout_thread_t *, picture_t *, picture_t * );
#endif
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin();
#if defined (MODULE_NAME_IS_i422_yuy2)
set_description( _("conversions from " SRC_FOURCC " to " DEST_FOURCC) );
set_capability( "chroma", 80 );
#elif defined (MODULE_NAME_IS_i422_yuy2_mmx)
set_description( _("MMX conversions from " SRC_FOURCC " to " DEST_FOURCC) );
set_capability( "chroma", 100 );
add_requirement( MMX );
#endif
set_callbacks( Activate, NULL );
vlc_module_end();
/*****************************************************************************
* Activate: allocate a chroma function
*****************************************************************************
* This function allocates and initializes a chroma function
*****************************************************************************/
static int Activate( vlc_object_t *p_this )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
if( p_vout->render.i_width & 1 || p_vout->render.i_height & 1 )
{
return -1;
}
switch( p_vout->render.i_chroma )
{
case VLC_FOURCC('I','4','2','2'):
switch( p_vout->output.i_chroma )
{
case VLC_FOURCC('Y','U','Y','2'):
case VLC_FOURCC('Y','U','N','V'):
p_vout->chroma.pf_convert = I422_YUY2;
break;
case VLC_FOURCC('Y','V','Y','U'):
p_vout->chroma.pf_convert = I422_YVYU;
break;
case VLC_FOURCC('U','Y','V','Y'):
case VLC_FOURCC('U','Y','N','V'):
case VLC_FOURCC('Y','4','2','2'):
p_vout->chroma.pf_convert = I422_UYVY;
break;
case VLC_FOURCC('I','U','Y','V'):
p_vout->chroma.pf_convert = I422_IUYV;
break;
case VLC_FOURCC('c','y','u','v'):
p_vout->chroma.pf_convert = I422_cyuv;
break;
#if defined (MODULE_NAME_IS_i422_yuy2)
case VLC_FOURCC('Y','2','1','1'):
p_vout->chroma.pf_convert = I422_Y211;
break;
#endif
default:
return -1;
}
break;
default:
return -1;
}
return 0;
}
/* Following functions are local */
/*****************************************************************************
* I422_YUY2: planar YUV 4:2:2 to packed YUY2 4:2:2
*****************************************************************************/
static void I422_YUY2( vout_thread_t *p_vout, picture_t *p_source,
picture_t *p_dest )
{
u8 *p_line = p_dest->p->p_pixels;
u8 *p_y = p_source->Y_PIXELS;
u8 *p_u = p_source->U_PIXELS;
u8 *p_v = p_source->V_PIXELS;
int i_x, i_y;
for( i_y = p_vout->render.i_height ; i_y-- ; )
{
for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
{
#if defined (MODULE_NAME_IS_i422_yuy2)
C_YUV422_YUYV( p_line, p_y, p_u, p_v );
C_YUV422_YUYV( p_line, p_y, p_u, p_v );
C_YUV422_YUYV( p_line, p_y, p_u, p_v );
C_YUV422_YUYV( p_line, p_y, p_u, p_v );
#else
__asm__( ".align 8" MMX_YUV422_YUYV
: : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
p_line += 8; p_y += 4; p_u += 2; p_v += 2;
__asm__( ".align 8" MMX_YUV422_YUYV
: : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
p_line += 8; p_y += 4; p_u += 2; p_v += 2;
#endif
}
}
}
/*****************************************************************************
* I422_YVYU: planar YUV 4:2:2 to packed YVYU 4:2:2
*****************************************************************************/
static void I422_YVYU( vout_thread_t *p_vout, picture_t *p_source,
picture_t *p_dest )
{
u8 *p_line = p_dest->p->p_pixels;
u8 *p_y = p_source->Y_PIXELS;
u8 *p_u = p_source->U_PIXELS;
u8 *p_v = p_source->V_PIXELS;
int i_x, i_y;
for( i_y = p_vout->render.i_height ; i_y-- ; )
{
for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
{
#if defined (MODULE_NAME_IS_i422_yuy2)
C_YUV422_YVYU( p_line, p_y, p_u, p_v );
C_YUV422_YVYU( p_line, p_y, p_u, p_v );
C_YUV422_YVYU( p_line, p_y, p_u, p_v );
C_YUV422_YVYU( p_line, p_y, p_u, p_v );
#else
__asm__( ".align 8" MMX_YUV422_YVYU
: : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
p_line += 8; p_y += 4; p_u += 2; p_v += 2;
__asm__( ".align 8" MMX_YUV422_YVYU
: : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
p_line += 8; p_y += 4; p_u += 2; p_v += 2;
#endif
}
}
}
/*****************************************************************************
* I422_UYVY: planar YUV 4:2:2 to packed UYVY 4:2:2
*****************************************************************************/
static void I422_UYVY( vout_thread_t *p_vout, picture_t *p_source,
picture_t *p_dest )
{
u8 *p_line = p_dest->p->p_pixels;
u8 *p_y = p_source->Y_PIXELS;
u8 *p_u = p_source->U_PIXELS;
u8 *p_v = p_source->V_PIXELS;
int i_x, i_y;
for( i_y = p_vout->render.i_height ; i_y-- ; )
{
for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
{
#if defined (MODULE_NAME_IS_i422_yuy2)
C_YUV422_UYVY( p_line, p_y, p_u, p_v );
C_YUV422_UYVY( p_line, p_y, p_u, p_v );
C_YUV422_UYVY( p_line, p_y, p_u, p_v );
C_YUV422_UYVY( p_line, p_y, p_u, p_v );
#else
__asm__( ".align 8" MMX_YUV422_UYVY
: : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
p_line += 8; p_y += 4; p_u += 2; p_v += 2;
__asm__( ".align 8" MMX_YUV422_UYVY
: : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
p_line += 8; p_y += 4; p_u += 2; p_v += 2;
#endif
}
}
}
/*****************************************************************************
* I422_IUYV: planar YUV 4:2:2 to interleaved packed IUYV 4:2:2
*****************************************************************************/
static void I422_IUYV( vout_thread_t *p_vout, picture_t *p_source,
picture_t *p_dest )
{
/* FIXME: TODO ! */
msg_Err( p_vout, "I422_IUYV unimplemented, please harass <sam@zoy.org>" );
}
/*****************************************************************************
* I422_cyuv: planar YUV 4:2:2 to upside-down packed UYVY 4:2:2
*****************************************************************************/
static void I422_cyuv( vout_thread_t *p_vout, picture_t *p_source,
picture_t *p_dest )
{
u8 *p_line = p_dest->p->p_pixels + p_dest->p->i_lines * p_dest->p->i_pitch;
u8 *p_y = p_source->Y_PIXELS;
u8 *p_u = p_source->U_PIXELS;
u8 *p_v = p_source->V_PIXELS;
int i_x, i_y;
for( i_y = p_vout->render.i_height ; i_y-- ; )
{
for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
{
p_line -= 2 * p_dest->p->i_pitch;
#if defined (MODULE_NAME_IS_i422_yuy2)
C_YUV422_UYVY( p_line, p_y, p_u, p_v );
C_YUV422_UYVY( p_line, p_y, p_u, p_v );
C_YUV422_UYVY( p_line, p_y, p_u, p_v );
C_YUV422_UYVY( p_line, p_y, p_u, p_v );
#else
__asm__( ".align 8" MMX_YUV422_UYVY
: : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
p_line += 8; p_y += 4; p_u += 2; p_v += 2;
__asm__( ".align 8" MMX_YUV422_UYVY
: : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
p_line += 8; p_y += 4; p_u += 2; p_v += 2;
#endif
}
}
}
/*****************************************************************************
* I422_Y211: planar YUV 4:2:2 to packed YUYV 2:1:1
*****************************************************************************/
#if defined (MODULE_NAME_IS_i422_yuy2)
static void I422_Y211( vout_thread_t *p_vout, picture_t *p_source,
picture_t *p_dest )
{
u8 *p_line = p_dest->p->p_pixels + p_dest->p->i_lines * p_dest->p->i_pitch;
u8 *p_y = p_source->Y_PIXELS;
u8 *p_u = p_source->U_PIXELS;
u8 *p_v = p_source->V_PIXELS;
int i_x, i_y;
for( i_y = p_vout->render.i_height ; i_y-- ; )
{
for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
{
C_YUV422_Y211( p_line, p_y, p_u, p_v );
C_YUV422_Y211( p_line, p_y, p_u, p_v );
}
}
}
#endif
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