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i420_yuy2.c
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/*****************************************************************************
* i420_yuy2.c : YUV to YUV conversion module for vlc
*****************************************************************************
* Copyright (C) 2000, 2001 the VideoLAN team
* $Id$
*
* Authors: Samuel Hocevar <[email protected]>
* Damien Fouilleul <[email protected]>
*
* 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.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_filter.h>
#include <vlc_vout.h>
#if defined (MODULE_NAME_IS_i420_yuy2_altivec) && defined(HAVE_ALTIVEC_H)
# include <altivec.h>
#endif
#include "i420_yuy2.h"
#define SRC_FOURCC "I420,IYUV,YV12"
#if defined (MODULE_NAME_IS_i420_yuy2)
# define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv,Y211"
#elif defined (MODULE_NAME_IS_i420_yuy2_mmx)
# define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv"
#elif defined (MODULE_NAME_IS_i420_yuy2_sse2)
# define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv"
#elif defined (MODULE_NAME_IS_i420_yuy2_altivec)
# define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422"
#endif
/*****************************************************************************
* Local and extern prototypes.
*****************************************************************************/
static int Activate ( vlc_object_t * );
static void I420_YUY2 ( filter_t *, picture_t *, picture_t * );
static void I420_YVYU ( filter_t *, picture_t *, picture_t * );
static void I420_UYVY ( filter_t *, picture_t *, picture_t * );
static picture_t *I420_YUY2_Filter ( filter_t *, picture_t * );
static picture_t *I420_YVYU_Filter ( filter_t *, picture_t * );
static picture_t *I420_UYVY_Filter ( filter_t *, picture_t * );
#if !defined (MODULE_NAME_IS_i420_yuy2_altivec)
static void I420_IUYV ( filter_t *, picture_t *, picture_t * );
static void I420_cyuv ( filter_t *, picture_t *, picture_t * );
static picture_t *I420_IUYV_Filter ( filter_t *, picture_t * );
static picture_t *I420_cyuv_Filter ( filter_t *, picture_t * );
#endif
#if defined (MODULE_NAME_IS_i420_yuy2)
static void I420_Y211 ( filter_t *, picture_t *, picture_t * );
static picture_t *I420_Y211_Filter ( filter_t *, picture_t * );
#endif
#ifdef MODULE_NAME_IS_i420_yuy2_mmx
/* Initialize MMX-specific constants */
static const uint64_t i_00ffw = 0x00ff00ff00ff00ffULL;
static const uint64_t i_80w = 0x0000000080808080ULL;
#endif
/*****************************************************************************
* Module descriptor.
*****************************************************************************/
vlc_module_begin ()
#if defined (MODULE_NAME_IS_i420_yuy2)
set_description( N_("Conversions from " SRC_FOURCC " to " DEST_FOURCC) )
set_capability( "video filter2", 80 )
#elif defined (MODULE_NAME_IS_i420_yuy2_mmx)
set_description( N_("MMX conversions from " SRC_FOURCC " to " DEST_FOURCC) )
set_capability( "video filter2", 160 )
add_requirement( MMX )
#elif defined (MODULE_NAME_IS_i420_yuy2_sse2)
set_description( N_("SSE2 conversions from " SRC_FOURCC " to " DEST_FOURCC) )
set_capability( "video filter2", 250 )
add_requirement( SSE2 )
#elif defined (MODULE_NAME_IS_i420_yuy2_altivec)
set_description(
_("AltiVec conversions from " SRC_FOURCC " to " DEST_FOURCC) );
set_capability( "video filter2", 250 )
add_requirement( ALTIVEC )
#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 )
{
filter_t *p_filter = (filter_t *)p_this;
if( p_filter->fmt_in.video.i_width & 1
|| p_filter->fmt_in.video.i_height & 1 )
{
return -1;
}
if( p_filter->fmt_in.video.i_width != p_filter->fmt_out.video.i_width
|| p_filter->fmt_in.video.i_height != p_filter->fmt_out.video.i_height )
return -1;
switch( p_filter->fmt_in.video.i_chroma )
{
case VLC_FOURCC('Y','V','1','2'):
case VLC_FOURCC('I','4','2','0'):
case VLC_FOURCC('I','Y','U','V'):
switch( p_filter->fmt_out.video.i_chroma )
{
case VLC_FOURCC('Y','U','Y','2'):
case VLC_FOURCC('Y','U','N','V'):
p_filter->pf_video_filter = I420_YUY2_Filter;
break;
case VLC_FOURCC('Y','V','Y','U'):
p_filter->pf_video_filter = I420_YVYU_Filter;
break;
case VLC_FOURCC('U','Y','V','Y'):
case VLC_FOURCC('U','Y','N','V'):
case VLC_FOURCC('Y','4','2','2'):
p_filter->pf_video_filter = I420_UYVY_Filter;
break;
#if !defined (MODULE_NAME_IS_i420_yuy2_altivec)
case VLC_FOURCC('I','U','Y','V'):
p_filter->pf_video_filter = I420_IUYV_Filter;
break;
case VLC_FOURCC('c','y','u','v'):
p_filter->pf_video_filter = I420_cyuv_Filter;
break;
#endif
#if defined (MODULE_NAME_IS_i420_yuy2)
case VLC_FOURCC('Y','2','1','1'):
p_filter->pf_video_filter = I420_Y211_Filter;
break;
#endif
default:
return -1;
}
break;
default:
return -1;
}
return 0;
}
#if 0
static inline unsigned long long read_cycles(void)
{
unsigned long long v;
__asm__ __volatile__("rdtsc" : "=A" (v): );
return v;
}
#endif
/* Following functions are local */
VIDEO_FILTER_WRAPPER( I420_YUY2 )
VIDEO_FILTER_WRAPPER( I420_YVYU )
VIDEO_FILTER_WRAPPER( I420_UYVY )
#if !defined (MODULE_NAME_IS_i420_yuy2_altivec)
VIDEO_FILTER_WRAPPER( I420_IUYV )
VIDEO_FILTER_WRAPPER( I420_cyuv )
#endif
#if defined (MODULE_NAME_IS_i420_yuy2)
VIDEO_FILTER_WRAPPER( I420_Y211 )
#endif
/*****************************************************************************
* I420_YUY2: planar YUV 4:2:0 to packed YUYV 4:2:2
*****************************************************************************/
static void I420_YUY2( filter_t *p_filter, picture_t *p_source,
picture_t *p_dest )
{
uint8_t *p_line1, *p_line2 = p_dest->p->p_pixels;
uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
uint8_t *p_u = p_source->U_PIXELS;
uint8_t *p_v = p_source->V_PIXELS;
int i_x, i_y;
#if defined (MODULE_NAME_IS_i420_yuy2_altivec)
#define VEC_NEXT_LINES( ) \
p_line1 = p_line2; \
p_line2 += p_dest->p->i_pitch; \
p_y1 = p_y2; \
p_y2 += p_source->p[Y_PLANE].i_pitch;
#define VEC_LOAD_UV( ) \
u_vec = vec_ld( 0, p_u ); p_u += 16; \
v_vec = vec_ld( 0, p_v ); p_v += 16;
#define VEC_MERGE( a ) \
uv_vec = a( u_vec, v_vec ); \
y_vec = vec_ld( 0, p_y1 ); p_y1 += 16; \
vec_st( vec_mergeh( y_vec, uv_vec ), 0, p_line1 ); p_line1 += 16; \
vec_st( vec_mergel( y_vec, uv_vec ), 0, p_line1 ); p_line1 += 16; \
y_vec = vec_ld( 0, p_y2 ); p_y2 += 16; \
vec_st( vec_mergeh( y_vec, uv_vec ), 0, p_line2 ); p_line2 += 16; \
vec_st( vec_mergel( y_vec, uv_vec ), 0, p_line2 ); p_line2 += 16;
vector unsigned char u_vec;
vector unsigned char v_vec;
vector unsigned char uv_vec;
vector unsigned char y_vec;
if( !( ( p_filter->fmt_in.video.i_width % 32 ) |
( p_filter->fmt_in.video.i_height % 2 ) ) )
{
/* Width is a multiple of 32, we take 2 lines at a time */
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
VEC_NEXT_LINES( );
for( i_x = p_filter->fmt_in.video.i_width / 32 ; i_x-- ; )
{
VEC_LOAD_UV( );
VEC_MERGE( vec_mergeh );
VEC_MERGE( vec_mergel );
}
}
}
else if( !( ( p_filter->fmt_in.video.i_width % 16 ) |
( p_filter->fmt_in.video.i_height % 4 ) ) )
{
/* Width is only a multiple of 16, we take 4 lines at a time */
for( i_y = p_filter->fmt_in.video.i_height / 4 ; i_y-- ; )
{
/* Line 1 and 2, pixels 0 to ( width - 16 ) */
VEC_NEXT_LINES( );
for( i_x = p_filter->fmt_in.video.i_width / 32 ; i_x-- ; )
{
VEC_LOAD_UV( );
VEC_MERGE( vec_mergeh );
VEC_MERGE( vec_mergel );
}
/* Line 1 and 2, pixels ( width - 16 ) to ( width ) */
VEC_LOAD_UV( );
VEC_MERGE( vec_mergeh );
/* Line 3 and 4, pixels 0 to 16 */
VEC_NEXT_LINES( );
VEC_MERGE( vec_mergel );
/* Line 3 and 4, pixels 16 to ( width ) */
for( i_x = p_filter->fmt_in.video.i_width / 32 ; i_x-- ; )
{
VEC_LOAD_UV( );
VEC_MERGE( vec_mergeh );
VEC_MERGE( vec_mergel );
}
}
}
else
{
/* Crap, use the C version */
#undef VEC_NEXT_LINES
#undef VEC_LOAD_UV
#undef VEC_MERGE
#endif
const int i_source_margin = p_source->p[0].i_pitch
- p_source->p[0].i_visible_pitch;
const int i_source_margin_c = p_source->p[1].i_pitch
- p_source->p[1].i_visible_pitch;
const int i_dest_margin = p_dest->p->i_pitch
- p_dest->p->i_visible_pitch;
#if !defined(MODULE_NAME_IS_i420_yuy2_sse2)
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 = p_line2;
p_line2 += p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;
#if !defined (MODULE_NAME_IS_i420_yuy2_mmx)
for( i_x = p_filter->fmt_in.video.i_width / 8; i_x-- ; )
{
C_YUV420_YUYV( );
C_YUV420_YUYV( );
C_YUV420_YUYV( );
C_YUV420_YUYV( );
}
#else
for( i_x = p_filter->fmt_in.video.i_width / 8 ; i_x-- ; )
{
MMX_CALL( MMX_YUV420_YUYV );
}
#endif
for( i_x = ( p_filter->fmt_in.video.i_width % 8 ) / 2; i_x-- ; )
{
C_YUV420_YUYV( );
}
p_y1 += i_source_margin;
p_y2 += i_source_margin;
p_u += i_source_margin_c;
p_v += i_source_margin_c;
p_line1 += i_dest_margin;
p_line2 += i_dest_margin;
}
#if defined (MODULE_NAME_IS_i420_yuy2_mmx)
/* re-enable FPU registers */
MMX_END;
#endif
#if defined (MODULE_NAME_IS_i420_yuy2_altivec)
}
#endif
#else // defined(MODULE_NAME_IS_i420_yuy2_sse2)
/*
** SSE2 128 bits fetch/store instructions are faster
** if memory access is 16 bytes aligned
*/
if( 0 == (15 & (p_source->p[Y_PLANE].i_pitch|p_dest->p->i_pitch|
((intptr_t)p_line2|(intptr_t)p_y2))) )
{
/* use faster SSE2 aligned fetch and store */
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 = p_line2;
p_line2 += p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;
for( i_x = p_filter->fmt_in.video.i_width / 16 ; i_x-- ; )
{
SSE2_CALL( SSE2_YUV420_YUYV_ALIGNED );
}
for( i_x = ( p_filter->fmt_in.video.i_width % 16 ) / 2; i_x-- ; )
{
C_YUV420_YUYV( );
}
p_y1 += i_source_margin;
p_y2 += i_source_margin;
p_u += i_source_margin_c;
p_v += i_source_margin_c;
p_line1 += i_dest_margin;
p_line2 += i_dest_margin;
}
}
else
{
/* use slower SSE2 unaligned fetch and store */
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 = p_line2;
p_line2 += p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;
for( i_x = p_filter->fmt_in.video.i_width / 16 ; i_x-- ; )
{
SSE2_CALL( SSE2_YUV420_YUYV_UNALIGNED );
}
for( i_x = ( p_filter->fmt_in.video.i_width % 16 ) / 2; i_x-- ; )
{
C_YUV420_YUYV( );
}
p_y1 += i_source_margin;
p_y2 += i_source_margin;
p_u += i_source_margin_c;
p_v += i_source_margin_c;
p_line1 += i_dest_margin;
p_line2 += i_dest_margin;
}
}
/* make sure all SSE2 stores are visible thereafter */
SSE2_END;
#endif // defined(MODULE_NAME_IS_i420_yuy2_sse2)
}
/*****************************************************************************
* I420_YVYU: planar YUV 4:2:0 to packed YVYU 4:2:2
*****************************************************************************/
static void I420_YVYU( filter_t *p_filter, picture_t *p_source,
picture_t *p_dest )
{
uint8_t *p_line1, *p_line2 = p_dest->p->p_pixels;
uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
uint8_t *p_u = p_source->U_PIXELS;
uint8_t *p_v = p_source->V_PIXELS;
int i_x, i_y;
#if defined (MODULE_NAME_IS_i420_yuy2_altivec)
#define VEC_NEXT_LINES( ) \
p_line1 = p_line2; \
p_line2 += p_dest->p->i_pitch; \
p_y1 = p_y2; \
p_y2 += p_source->p[Y_PLANE].i_pitch;
#define VEC_LOAD_UV( ) \
u_vec = vec_ld( 0, p_u ); p_u += 16; \
v_vec = vec_ld( 0, p_v ); p_v += 16;
#define VEC_MERGE( a ) \
vu_vec = a( v_vec, u_vec ); \
y_vec = vec_ld( 0, p_y1 ); p_y1 += 16; \
vec_st( vec_mergeh( y_vec, vu_vec ), 0, p_line1 ); p_line1 += 16; \
vec_st( vec_mergel( y_vec, vu_vec ), 0, p_line1 ); p_line1 += 16; \
y_vec = vec_ld( 0, p_y2 ); p_y2 += 16; \
vec_st( vec_mergeh( y_vec, vu_vec ), 0, p_line2 ); p_line2 += 16; \
vec_st( vec_mergel( y_vec, vu_vec ), 0, p_line2 ); p_line2 += 16;
vector unsigned char u_vec;
vector unsigned char v_vec;
vector unsigned char vu_vec;
vector unsigned char y_vec;
if( !( ( p_filter->fmt_in.video.i_width % 32 ) |
( p_filter->fmt_in.video.i_height % 2 ) ) )
{
/* Width is a multiple of 32, we take 2 lines at a time */
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
VEC_NEXT_LINES( );
for( i_x = p_filter->fmt_in.video.i_width / 32 ; i_x-- ; )
{
VEC_LOAD_UV( );
VEC_MERGE( vec_mergeh );
VEC_MERGE( vec_mergel );
}
}
}
else if( !( ( p_filter->fmt_in.video.i_width % 16 ) |
( p_filter->fmt_in.video.i_height % 4 ) ) )
{
/* Width is only a multiple of 16, we take 4 lines at a time */
for( i_y = p_filter->fmt_in.video.i_height / 4 ; i_y-- ; )
{
/* Line 1 and 2, pixels 0 to ( width - 16 ) */
VEC_NEXT_LINES( );
for( i_x = p_filter->fmt_in.video.i_width / 32 ; i_x-- ; )
{
VEC_LOAD_UV( );
VEC_MERGE( vec_mergeh );
VEC_MERGE( vec_mergel );
}
/* Line 1 and 2, pixels ( width - 16 ) to ( width ) */
VEC_LOAD_UV( );
VEC_MERGE( vec_mergeh );
/* Line 3 and 4, pixels 0 to 16 */
VEC_NEXT_LINES( );
VEC_MERGE( vec_mergel );
/* Line 3 and 4, pixels 16 to ( width ) */
for( i_x = p_filter->fmt_in.video.i_width / 32 ; i_x-- ; )
{
VEC_LOAD_UV( );
VEC_MERGE( vec_mergeh );
VEC_MERGE( vec_mergel );
}
}
}
else
{
/* Crap, use the C version */
#undef VEC_NEXT_LINES
#undef VEC_LOAD_UV
#undef VEC_MERGE
#endif
const int i_source_margin = p_source->p[0].i_pitch
- p_source->p[0].i_visible_pitch;
const int i_source_margin_c = p_source->p[1].i_pitch
- p_source->p[1].i_visible_pitch;
const int i_dest_margin = p_dest->p->i_pitch
- p_dest->p->i_visible_pitch;
#if !defined(MODULE_NAME_IS_i420_yuy2_sse2)
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 = p_line2;
p_line2 += p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;
for( i_x = p_filter->fmt_in.video.i_width / 8 ; i_x-- ; )
{
#if !defined (MODULE_NAME_IS_i420_yuy2_mmx)
C_YUV420_YVYU( );
C_YUV420_YVYU( );
C_YUV420_YVYU( );
C_YUV420_YVYU( );
#else
MMX_CALL( MMX_YUV420_YVYU );
#endif
}
for( i_x = ( p_filter->fmt_in.video.i_width % 8 ) / 2; i_x-- ; )
{
C_YUV420_YVYU( );
}
p_y1 += i_source_margin;
p_y2 += i_source_margin;
p_u += i_source_margin_c;
p_v += i_source_margin_c;
p_line1 += i_dest_margin;
p_line2 += i_dest_margin;
}
#if defined (MODULE_NAME_IS_i420_yuy2_mmx)
/* re-enable FPU registers */
MMX_END;
#endif
#if defined (MODULE_NAME_IS_i420_yuy2_altivec)
}
#endif
#else // defined(MODULE_NAME_IS_i420_yuy2_sse2)
/*
** SSE2 128 bits fetch/store instructions are faster
** if memory access is 16 bytes aligned
*/
if( 0 == (15 & (p_source->p[Y_PLANE].i_pitch|p_dest->p->i_pitch|
((intptr_t)p_line2|(intptr_t)p_y2))) )
{
/* use faster SSE2 aligned fetch and store */
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 = p_line2;
p_line2 += p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;
for( i_x = p_filter->fmt_in.video.i_width / 16 ; i_x-- ; )
{
SSE2_CALL( SSE2_YUV420_YVYU_ALIGNED );
}
for( i_x = ( p_filter->fmt_in.video.i_width % 16 ) / 2; i_x-- ; )
{
C_YUV420_YVYU( );
}
p_y1 += i_source_margin;
p_y2 += i_source_margin;
p_u += i_source_margin_c;
p_v += i_source_margin_c;
p_line1 += i_dest_margin;
p_line2 += i_dest_margin;
}
}
else
{
/* use slower SSE2 unaligned fetch and store */
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 = p_line2;
p_line2 += p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;
for( i_x = p_filter->fmt_in.video.i_width / 16 ; i_x-- ; )
{
SSE2_CALL( SSE2_YUV420_YVYU_UNALIGNED );
}
for( i_x = ( p_filter->fmt_in.video.i_width % 16 ) / 2; i_x-- ; )
{
C_YUV420_YVYU( );
}
p_y1 += i_source_margin;
p_y2 += i_source_margin;
p_u += i_source_margin_c;
p_v += i_source_margin_c;
p_line1 += i_dest_margin;
p_line2 += i_dest_margin;
}
}
/* make sure all SSE2 stores are visible thereafter */
SSE2_END;
#endif // defined(MODULE_NAME_IS_i420_yuy2_sse2)
}
/*****************************************************************************
* I420_UYVY: planar YUV 4:2:0 to packed UYVY 4:2:2
*****************************************************************************/
static void I420_UYVY( filter_t *p_filter, picture_t *p_source,
picture_t *p_dest )
{
uint8_t *p_line1, *p_line2 = p_dest->p->p_pixels;
uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
uint8_t *p_u = p_source->U_PIXELS;
uint8_t *p_v = p_source->V_PIXELS;
int i_x, i_y;
#if defined (MODULE_NAME_IS_i420_yuy2_altivec)
#define VEC_NEXT_LINES( ) \
p_line1 = p_line2; \
p_line2 += p_dest->p->i_pitch; \
p_y1 = p_y2; \
p_y2 += p_source->p[Y_PLANE].i_pitch;
#define VEC_LOAD_UV( ) \
u_vec = vec_ld( 0, p_u ); p_u += 16; \
v_vec = vec_ld( 0, p_v ); p_v += 16;
#define VEC_MERGE( a ) \
uv_vec = a( u_vec, v_vec ); \
y_vec = vec_ld( 0, p_y1 ); p_y1 += 16; \
vec_st( vec_mergeh( uv_vec, y_vec ), 0, p_line1 ); p_line1 += 16; \
vec_st( vec_mergel( uv_vec, y_vec ), 0, p_line1 ); p_line1 += 16; \
y_vec = vec_ld( 0, p_y2 ); p_y2 += 16; \
vec_st( vec_mergeh( uv_vec, y_vec ), 0, p_line2 ); p_line2 += 16; \
vec_st( vec_mergel( uv_vec, y_vec ), 0, p_line2 ); p_line2 += 16;
vector unsigned char u_vec;
vector unsigned char v_vec;
vector unsigned char uv_vec;
vector unsigned char y_vec;
if( !( ( p_filter->fmt_in.video.i_width % 32 ) |
( p_filter->fmt_in.video.i_height % 2 ) ) )
{
/* Width is a multiple of 32, we take 2 lines at a time */
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
VEC_NEXT_LINES( );
for( i_x = p_filter->fmt_in.video.i_width / 32 ; i_x-- ; )
{
VEC_LOAD_UV( );
VEC_MERGE( vec_mergeh );
VEC_MERGE( vec_mergel );
}
}
}
else if( !( ( p_filter->fmt_in.video.i_width % 16 ) |
( p_filter->fmt_in.video.i_height % 4 ) ) )
{
/* Width is only a multiple of 16, we take 4 lines at a time */
for( i_y = p_filter->fmt_in.video.i_height / 4 ; i_y-- ; )
{
/* Line 1 and 2, pixels 0 to ( width - 16 ) */
VEC_NEXT_LINES( );
for( i_x = p_filter->fmt_in.video.i_width / 32 ; i_x-- ; )
{
VEC_LOAD_UV( );
VEC_MERGE( vec_mergeh );
VEC_MERGE( vec_mergel );
}
/* Line 1 and 2, pixels ( width - 16 ) to ( width ) */
VEC_LOAD_UV( );
VEC_MERGE( vec_mergeh );
/* Line 3 and 4, pixels 0 to 16 */
VEC_NEXT_LINES( );
VEC_MERGE( vec_mergel );
/* Line 3 and 4, pixels 16 to ( width ) */
for( i_x = p_filter->fmt_in.video.i_width / 32 ; i_x-- ; )
{
VEC_LOAD_UV( );
VEC_MERGE( vec_mergeh );
VEC_MERGE( vec_mergel );
}
}
}
else
{
/* Crap, use the C version */
#undef VEC_NEXT_LINES
#undef VEC_LOAD_UV
#undef VEC_MERGE
#endif
const int i_source_margin = p_source->p[0].i_pitch
- p_source->p[0].i_visible_pitch;
const int i_source_margin_c = p_source->p[1].i_pitch
- p_source->p[1].i_visible_pitch;
const int i_dest_margin = p_dest->p->i_pitch
- p_dest->p->i_visible_pitch;
#if !defined(MODULE_NAME_IS_i420_yuy2_sse2)
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 = p_line2;
p_line2 += p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;
for( i_x = p_filter->fmt_in.video.i_width / 8 ; i_x-- ; )
{
#if !defined (MODULE_NAME_IS_i420_yuy2_mmx)
C_YUV420_UYVY( );
C_YUV420_UYVY( );
C_YUV420_UYVY( );
C_YUV420_UYVY( );
#else
MMX_CALL( MMX_YUV420_UYVY );
#endif
}
for( i_x = ( p_filter->fmt_in.video.i_width % 8 ) / 2; i_x--; )
{
C_YUV420_UYVY( );
}
p_y1 += i_source_margin;
p_y2 += i_source_margin;
p_u += i_source_margin_c;
p_v += i_source_margin_c;
p_line1 += i_dest_margin;
p_line2 += i_dest_margin;
}
#if defined (MODULE_NAME_IS_i420_yuy2_mmx)
/* re-enable FPU registers */
MMX_END;
#endif
#if defined (MODULE_NAME_IS_i420_yuy2_altivec)
}
#endif
#else // defined(MODULE_NAME_IS_i420_yuy2_sse2)
/*
** SSE2 128 bits fetch/store instructions are faster
** if memory access is 16 bytes aligned
*/
if( 0 == (15 & (p_source->p[Y_PLANE].i_pitch|p_dest->p->i_pitch|
((intptr_t)p_line2|(intptr_t)p_y2))) )
{
/* use faster SSE2 aligned fetch and store */
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 = p_line2;
p_line2 += p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;
for( i_x = p_filter->fmt_in.video.i_width / 16 ; i_x-- ; )
{
SSE2_CALL( SSE2_YUV420_UYVY_ALIGNED );
}
for( i_x = ( p_filter->fmt_in.video.i_width % 16 ) / 2; i_x-- ; )
{
C_YUV420_UYVY( );
}
p_y1 += i_source_margin;
p_y2 += i_source_margin;
p_u += i_source_margin_c;
p_v += i_source_margin_c;
p_line1 += i_dest_margin;
p_line2 += i_dest_margin;
}
}
else
{
/* use slower SSE2 unaligned fetch and store */
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 = p_line2;
p_line2 += p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;
for( i_x = p_filter->fmt_in.video.i_width / 16 ; i_x-- ; )
{
SSE2_CALL( SSE2_YUV420_UYVY_UNALIGNED );
}
for( i_x = ( p_filter->fmt_in.video.i_width % 16 ) / 2; i_x-- ; )
{
C_YUV420_UYVY( );
}
p_y1 += i_source_margin;
p_y2 += i_source_margin;
p_u += i_source_margin_c;
p_v += i_source_margin_c;
p_line1 += i_dest_margin;
p_line2 += i_dest_margin;
}
}
/* make sure all SSE2 stores are visible thereafter */
SSE2_END;
#endif // defined(MODULE_NAME_IS_i420_yuy2_sse2)
}
#if !defined (MODULE_NAME_IS_i420_yuy2_altivec)
/*****************************************************************************
* I420_IUYV: planar YUV 4:2:0 to interleaved packed UYVY 4:2:2
*****************************************************************************/
static void I420_IUYV( filter_t *p_filter, picture_t *p_source,
picture_t *p_dest )
{
VLC_UNUSED(p_source); VLC_UNUSED(p_dest);
/* FIXME: TODO ! */
msg_Err( p_filter, "I420_IUYV unimplemented, please harass <[email protected]>" );
}
/*****************************************************************************
* I420_cyuv: planar YUV 4:2:0 to upside-down packed UYVY 4:2:2
*****************************************************************************/
static void I420_cyuv( filter_t *p_filter, picture_t *p_source,
picture_t *p_dest )
{
uint8_t *p_line1 = p_dest->p->p_pixels +
p_dest->p->i_visible_lines * p_dest->p->i_pitch
+ p_dest->p->i_pitch;
uint8_t *p_line2 = p_dest->p->p_pixels +
p_dest->p->i_visible_lines * p_dest->p->i_pitch;
uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
uint8_t *p_u = p_source->U_PIXELS;
uint8_t *p_v = p_source->V_PIXELS;
int i_x, i_y;
const int i_source_margin = p_source->p[0].i_pitch
- p_source->p[0].i_visible_pitch;
const int i_source_margin_c = p_source->p[1].i_pitch
- p_source->p[1].i_visible_pitch;
const int i_dest_margin = p_dest->p->i_pitch
- p_dest->p->i_visible_pitch;
#if !defined(MODULE_NAME_IS_i420_yuy2_sse2)
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 -= 3 * p_dest->p->i_pitch;
p_line2 -= 3 * p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;
for( i_x = p_filter->fmt_in.video.i_width / 8 ; i_x-- ; )
{
#if !defined (MODULE_NAME_IS_i420_yuy2_mmx)
C_YUV420_UYVY( );
C_YUV420_UYVY( );
C_YUV420_UYVY( );
C_YUV420_UYVY( );
#else
MMX_CALL( MMX_YUV420_UYVY );
#endif
}
for( i_x = ( p_filter->fmt_in.video.i_width % 8 ) / 2; i_x-- ; )
{
C_YUV420_UYVY( );
}
p_y1 += i_source_margin;
p_y2 += i_source_margin;
p_u += i_source_margin_c;
p_v += i_source_margin_c;
p_line1 += i_dest_margin;
p_line2 += i_dest_margin;
}
#if defined (MODULE_NAME_IS_i420_yuy2_mmx)
/* re-enable FPU registers */
MMX_END;
#endif
#else // defined(MODULE_NAME_IS_i420_yuy2_sse2)
/*
** SSE2 128 bits fetch/store instructions are faster
** if memory access is 16 bytes aligned
*/
if( 0 == (15 & (p_source->p[Y_PLANE].i_pitch|p_dest->p->i_pitch|
((intptr_t)p_line2|(intptr_t)p_y2))) )
{
/* use faster SSE2 aligned fetch and store */
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 = p_line2;
p_line2 += p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;
for( i_x = p_filter->fmt_in.video.i_width / 16 ; i_x-- ; )
{
SSE2_CALL( SSE2_YUV420_UYVY_ALIGNED );
}
for( i_x = ( p_filter->fmt_in.video.i_width % 16 ) / 2; i_x-- ; )
{
C_YUV420_UYVY( );
}
p_y1 += i_source_margin;
p_y2 += i_source_margin;
p_u += i_source_margin_c;
p_v += i_source_margin_c;
p_line1 += i_dest_margin;
p_line2 += i_dest_margin;
}
}
else
{
/* use slower SSE2 unaligned fetch and store */
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 = p_line2;
p_line2 += p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;
for( i_x = p_filter->fmt_in.video.i_width / 16 ; i_x-- ; )
{
SSE2_CALL( SSE2_YUV420_UYVY_UNALIGNED );
}
for( i_x = ( p_filter->fmt_in.video.i_width % 16 ) / 2; i_x-- ; )
{
C_YUV420_UYVY( );
}
p_y1 += i_source_margin;
p_y2 += i_source_margin;
p_u += i_source_margin_c;
p_v += i_source_margin_c;
p_line1 += i_dest_margin;
p_line2 += i_dest_margin;
}
}
/* make sure all SSE2 stores are visible thereafter */
SSE2_END;
#endif // defined(MODULE_NAME_IS_i420_yuy2_sse2)
}
#endif // !defined (MODULE_NAME_IS_i420_yuy2_altivec)
/*****************************************************************************
* I420_Y211: planar YUV 4:2:0 to packed YUYV 2:1:1
*****************************************************************************/
#if defined (MODULE_NAME_IS_i420_yuy2)
static void I420_Y211( filter_t *p_filter, picture_t *p_source,
picture_t *p_dest )
{
uint8_t *p_line1, *p_line2 = p_dest->p->p_pixels;
uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
uint8_t *p_u = p_source->U_PIXELS;
uint8_t *p_v = p_source->V_PIXELS;
int i_x, i_y;
const int i_source_margin = p_source->p[0].i_pitch
- p_source->p[0].i_visible_pitch;
const int i_source_margin_c = p_source->p[1].i_pitch
- p_source->p[1].i_visible_pitch;
const int i_dest_margin = p_dest->p->i_pitch
- p_dest->p->i_visible_pitch;
for( i_y = p_filter->fmt_in.video.i_height / 2 ; i_y-- ; )
{
p_line1 = p_line2;
p_line2 += p_dest->p->i_pitch;
p_y1 = p_y2;
p_y2 += p_source->p[Y_PLANE].i_pitch;