/*****************************************************************************
* i422_yuy2.c : YUV to YUV conversion module for vlc
*****************************************************************************
* Copyright (C) 2000, 2001 VideoLAN
* $Id: i422_yuy2.c,v 1.3 2002/03/16 23:03:19 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 <math.h> /* exp(), pow() */
#include <errno.h> /* ENOMEM */
#include <string.h> /* strerror() */
#include <stdlib.h> /* malloc(), free() */
#include <videolan/vlc.h>
#include "video.h"
#include "video_output.h"
#include "i422_yuy2.h"
#define SRC_FOURCC "I422"
#if defined (MODULE_NAME_IS_chroma_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 void chroma_getfunctions ( function_list_t * p_function_list );
static int chroma_Init ( vout_thread_t *p_vout );
static void chroma_End ( vout_thread_t *p_vout );
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_chroma_i422_yuy2)
static void I422_Y211 ( vout_thread_t *, picture_t *, picture_t * );
#endif
/*****************************************************************************
* Build configuration tree.
*****************************************************************************/
MODULE_CONFIG_START
MODULE_CONFIG_STOP
MODULE_INIT_START
#if defined (MODULE_NAME_IS_chroma_i422_yuy2)
SET_DESCRIPTION( "conversions from " SRC_FOURCC " to " DEST_FOURCC )
ADD_CAPABILITY( CHROMA, 80 )
#elif defined (MODULE_NAME_IS_chroma_i422_yuy2_mmx)
SET_DESCRIPTION( "MMX conversions from " SRC_FOURCC " to " DEST_FOURCC )
ADD_CAPABILITY( CHROMA, 100 )
ADD_REQUIREMENT( MMX )
#endif
MODULE_INIT_STOP
MODULE_ACTIVATE_START
chroma_getfunctions( &p_module->p_functions->chroma );
MODULE_ACTIVATE_STOP
MODULE_DEACTIVATE_START
MODULE_DEACTIVATE_STOP
/*****************************************************************************
* Functions exported as capabilities. They are declared as static so that
* we don't pollute the namespace too much.
*****************************************************************************/
static void chroma_getfunctions( function_list_t * p_function_list )
{
p_function_list->functions.chroma.pf_init = chroma_Init;
p_function_list->functions.chroma.pf_end = chroma_End;
}
/*****************************************************************************
* chroma_Init: allocate a chroma function
*****************************************************************************
* This function allocates and initializes a chroma function
*****************************************************************************/
static int chroma_Init( vout_thread_t *p_vout )
{
if( p_vout->render.i_width & 1 || p_vout->render.i_height & 1 )
{
return -1;
}
switch( p_vout->render.i_chroma )
{
case FOURCC_I422:
switch( p_vout->output.i_chroma )
{
case FOURCC_YUY2:
case FOURCC_YUNV:
p_vout->chroma.pf_convert = I422_YUY2;
break;
case FOURCC_YVYU:
p_vout->chroma.pf_convert = I422_YVYU;
break;
case FOURCC_UYVY:
case FOURCC_UYNV:
case FOURCC_Y422:
p_vout->chroma.pf_convert = I422_UYVY;
break;
case FOURCC_IUYV:
p_vout->chroma.pf_convert = I422_IUYV;
break;
case FOURCC_cyuv:
p_vout->chroma.pf_convert = I422_cyuv;
break;
#if defined (MODULE_NAME_IS_chroma_i422_yuy2)
case FOURCC_Y211:
p_vout->chroma.pf_convert = I422_Y211;
break;
#endif
default:
return -1;
}
break;
default:
return -1;
}
return 0;
}
/*****************************************************************************
* chroma_End: free the chroma function
*****************************************************************************
* This function frees the previously allocated chroma function
*****************************************************************************/
static void chroma_End( vout_thread_t *p_vout )
{
;
}
/* 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_chroma_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_chroma_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_chroma_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 ! */
intf_ErrMsg( "chroma error: 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_chroma_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_chroma_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