/*****************************************************************************
* i420_rgb16.c : YUV to bitmap RGB conversion module for vlc
*****************************************************************************
- * Copyright (C) 2000 the VideoLAN team
+ * Copyright (C) 2000 VLC authors and VideoLAN
* $Id$
*
* Authors: Samuel Hocevar <sam@zoy.org>
+ * Damien Fouilleul <damienf@videolan.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
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser 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.
+ * You should have received a copy of the GNU Lesser 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
- *****************************************************************************/
-#include <string.h> /* strerror() */
-#include <stdlib.h> /* malloc(), free() */
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
-#include <vlc/vlc.h>
-#include <vlc/vout.h>
+#include <vlc_common.h>
+#include <vlc_filter.h>
+#include <vlc_cpu.h>
#include "i420_rgb.h"
-#if defined (MODULE_NAME_IS_i420_rgb)
-# include "i420_rgb_c.h"
-#elif defined (MODULE_NAME_IS_i420_rgb_mmx)
-# if defined(HAVE_MMX_INTRINSICS)
-# include <mmintrin.h>
-# endif
-# include "i420_rgb_mmx.h"
-#endif
-
-static void SetOffset( int, int, int, int, vlc_bool_t *,
- unsigned int *, int * );
+#include "i420_rgb_c.h"
-#if defined (MODULE_NAME_IS_i420_rgb)
/*****************************************************************************
- * I420_RGB16: color YUV 4:2:0 to RGB 16 bpp with dithering
+ * SetOffset: build offset array for conversion functions
*****************************************************************************
- * Horizontal alignment needed:
- * - input: 8 pixels (8 Y bytes, 4 U/V bytes), margins not allowed
- * - output: 1 pixel (2 bytes), margins allowed
- * Vertical alignment needed:
- * - input: 2 lines (2 Y lines, 1 U/V line)
- * - output: 1 line
+ * This function will build an offset array used in later conversion functions.
+ * It will also set horizontal and vertical scaling indicators.
*****************************************************************************/
-void E_(I420_RGB16_dithering)( vout_thread_t *p_vout, picture_t *p_src,
- picture_t *p_dest )
+static void SetOffset( int i_width, int i_height, int i_pic_width,
+ int i_pic_height, bool *pb_hscale,
+ unsigned int *pi_vscale, int *p_offset )
{
- /* We got this one from the old arguments */
- uint16_t *p_pic = (uint16_t*)p_dest->p->p_pixels;
- uint8_t *p_y = p_src->Y_PIXELS;
- uint8_t *p_u = p_src->U_PIXELS;
- uint8_t *p_v = p_src->V_PIXELS;
-
- vlc_bool_t b_hscale; /* horizontal scaling type */
- unsigned int i_vscale; /* vertical scaling type */
- unsigned int i_x, i_y; /* horizontal and vertical indexes */
- unsigned int i_real_y; /* y % 4 */
-
- int i_right_margin;
- int i_rewind;
- int i_scale_count; /* scale modulo counter */
- int i_chroma_width = p_vout->render.i_width / 2; /* chroma width */
- uint16_t * p_pic_start; /* beginning of the current line for copy */
- int i_uval, i_vval; /* U and V samples */
- int i_red, i_green, i_blue; /* U and V modified samples */
- uint16_t * p_yuv = p_vout->chroma.p_sys->p_rgb16;
- uint16_t * p_ybase; /* Y dependant conversion table */
-
- /* Conversion buffer pointer */
- uint16_t * p_buffer_start = (uint16_t*)p_vout->chroma.p_sys->p_buffer;
- uint16_t * p_buffer;
-
- /* Offset array pointer */
- int * p_offset_start = p_vout->chroma.p_sys->p_offset;
- int * p_offset;
-
- const int i_source_margin = p_src->p[0].i_pitch
- - p_src->p[0].i_visible_pitch;
- const int i_source_margin_c = p_src->p[1].i_pitch
- - p_src->p[1].i_visible_pitch;
-
- /* The dithering matrices */
- int dither10[4] = { 0x0, 0x8, 0x2, 0xa };
- int dither11[4] = { 0xc, 0x4, 0xe, 0x6 };
- int dither12[4] = { 0x3, 0xb, 0x1, 0x9 };
- int dither13[4] = { 0xf, 0x7, 0xd, 0x5 };
-
- for(i_x = 0; i_x < 4; i_x++)
- {
- dither10[i_x] = dither10[i_x] << (SHIFT - 4 + p_vout->output.i_rrshift);
- dither11[i_x] = dither11[i_x] << (SHIFT - 4 + p_vout->output.i_rrshift);
- dither12[i_x] = dither12[i_x] << (SHIFT - 4 + p_vout->output.i_rrshift);
- dither13[i_x] = dither13[i_x] << (SHIFT - 4 + p_vout->output.i_rrshift);
- }
-
- i_right_margin = p_dest->p->i_pitch - p_dest->p->i_visible_pitch;
-
- if( p_vout->render.i_width & 7 )
- {
- i_rewind = 8 - ( p_vout->render.i_width & 7 );
- }
- else
- {
- i_rewind = 0;
- }
-
- /* Rule: when a picture of size (x1,y1) with aspect ratio r1 is rendered
- * on a picture of size (x2,y2) with aspect ratio r2, if x1 grows to x1'
- * then y1 grows to y1' = x1' * y2/x2 * r2/r1 */
- SetOffset( p_vout->render.i_width, p_vout->render.i_height,
- p_vout->output.i_width, p_vout->output.i_height,
- &b_hscale, &i_vscale, p_offset_start );
-
/*
- * Perform conversion
+ * Prepare horizontal offset array
*/
- i_scale_count = ( i_vscale == 1 ) ?
- p_vout->output.i_height : p_vout->render.i_height;
- for( i_y = 0; i_y < p_vout->render.i_height; i_y++ )
- {
- i_real_y = i_y & 0x3;
- p_pic_start = p_pic;
- p_buffer = b_hscale ? p_buffer_start : p_pic;
-
- for ( i_x = p_vout->render.i_width / 8; i_x--; )
- {
- int *p_dither = dither10;
- CONVERT_YUV_PIXEL_DITHER(2);
- p_dither = dither11;
- CONVERT_Y_PIXEL_DITHER(2);
- p_dither = dither12;
- CONVERT_YUV_PIXEL_DITHER(2);
- p_dither = dither13;
- CONVERT_Y_PIXEL_DITHER(2);
- p_dither = dither10;
- CONVERT_YUV_PIXEL_DITHER(2);
- p_dither = dither11;
- CONVERT_Y_PIXEL_DITHER(2);
- p_dither = dither12;
- CONVERT_YUV_PIXEL_DITHER(2);
- p_dither = dither13;
- CONVERT_Y_PIXEL_DITHER(2);
- }
+ if( i_pic_width - i_width == 0 )
+ { /* No horizontal scaling: YUV conversion is done directly to picture */
+ *pb_hscale = 0;
+ }
+ else if( i_pic_width - i_width > 0 )
+ { /* Prepare scaling array for horizontal extension */
+ int i_scale_count = i_pic_width;
- /* Here we do some unaligned reads and duplicate conversions, but
- * at least we have all the pixels */
- if( i_rewind )
+ *pb_hscale = 1;
+ for( int i_x = i_width; i_x--; )
{
- int *p_dither = dither10;
- p_y -= i_rewind;
- p_u -= i_rewind >> 1;
- p_v -= i_rewind >> 1;
- p_buffer -= i_rewind;
- CONVERT_YUV_PIXEL_DITHER(2);
- p_dither = dither11;
- CONVERT_Y_PIXEL_DITHER(2);
- p_dither = dither12;
- CONVERT_YUV_PIXEL_DITHER(2);
- p_dither = dither13;
- CONVERT_Y_PIXEL_DITHER(2);
- p_dither = dither10;
- CONVERT_YUV_PIXEL_DITHER(2);
- p_dither = dither11;
- CONVERT_Y_PIXEL_DITHER(2);
- p_dither = dither12;
- CONVERT_YUV_PIXEL_DITHER(2);
- p_dither = dither13;
- CONVERT_Y_PIXEL_DITHER(2);
+ while( (i_scale_count -= i_width) > 0 )
+ {
+ *p_offset++ = 0;
+ }
+ *p_offset++ = 1;
+ i_scale_count += i_pic_width;
}
- SCALE_WIDTH;
- SCALE_HEIGHT( 420, 2 );
+ }
+ else /* if( i_pic_width - i_width < 0 ) */
+ { /* Prepare scaling array for horizontal reduction */
+ int i_scale_count = i_pic_width;
- p_y += i_source_margin;
- if( i_y % 2 )
+ *pb_hscale = 1;
+ for( int i_x = i_pic_width; i_x--; )
{
- p_u += i_source_margin_c;
- p_v += i_source_margin_c;
+ *p_offset = 1;
+ while( (i_scale_count -= i_pic_width) > 0 )
+ {
+ *p_offset += 1;
+ }
+ p_offset++;
+ i_scale_count += i_width;
}
}
+
+ /*
+ * Set vertical scaling indicator
+ */
+ if( i_pic_height - i_height == 0 )
+ *pi_vscale = 0;
+ else if( i_pic_height - i_height > 0 )
+ *pi_vscale = 1;
+ else /* if( i_pic_height - i_height < 0 ) */
+ *pi_vscale = -1;
}
-#endif
/*****************************************************************************
* I420_RGB16: color YUV 4:2:0 to RGB 16 bpp
* - input: 2 lines (2 Y lines, 1 U/V line)
* - output: 1 line
*****************************************************************************/
-void E_(I420_RGB16)( vout_thread_t *p_vout, picture_t *p_src,
- picture_t *p_dest )
+
+void I420_RGB16( filter_t *p_filter, picture_t *p_src, picture_t *p_dest )
{
/* We got this one from the old arguments */
uint16_t *p_pic = (uint16_t*)p_dest->p->p_pixels;
uint8_t *p_u = p_src->U_PIXELS;
uint8_t *p_v = p_src->V_PIXELS;
- vlc_bool_t b_hscale; /* horizontal scaling type */
+ bool b_hscale; /* horizontal scaling type */
unsigned int i_vscale; /* vertical scaling type */
unsigned int i_x, i_y; /* horizontal and vertical indexes */
int i_right_margin;
int i_rewind;
int i_scale_count; /* scale modulo counter */
- int i_chroma_width = p_vout->render.i_width / 2; /* chroma width */
+ int i_chroma_width = p_filter->fmt_in.video.i_width / 2; /* chroma width */
uint16_t * p_pic_start; /* beginning of the current line for copy */
-#if defined (MODULE_NAME_IS_i420_rgb)
int i_uval, i_vval; /* U and V samples */
int i_red, i_green, i_blue; /* U and V modified samples */
- uint16_t * p_yuv = p_vout->chroma.p_sys->p_rgb16;
+ uint16_t * p_yuv = p_filter->p_sys->p_rgb16;
uint16_t * p_ybase; /* Y dependant conversion table */
-#endif
/* Conversion buffer pointer */
- uint16_t * p_buffer_start = (uint16_t*)p_vout->chroma.p_sys->p_buffer;
+ uint16_t * p_buffer_start = (uint16_t*)p_filter->p_sys->p_buffer;
uint16_t * p_buffer;
/* Offset array pointer */
- int * p_offset_start = p_vout->chroma.p_sys->p_offset;
+ int * p_offset_start = p_filter->p_sys->p_offset;
int * p_offset;
const int i_source_margin = p_src->p[0].i_pitch
- p_src->p[1].i_visible_pitch;
i_right_margin = p_dest->p->i_pitch - p_dest->p->i_visible_pitch;
-
- if( p_vout->render.i_width & 7 )
- {
- i_rewind = 8 - ( p_vout->render.i_width & 7 );
- }
- else
- {
- i_rewind = 0;
- }
+ i_rewind = (-p_filter->fmt_in.video.i_width) & 7;
/* Rule: when a picture of size (x1,y1) with aspect ratio r1 is rendered
* on a picture of size (x2,y2) with aspect ratio r2, if x1 grows to x1'
* then y1 grows to y1' = x1' * y2/x2 * r2/r1 */
- SetOffset( p_vout->render.i_width, p_vout->render.i_height,
- p_vout->output.i_width, p_vout->output.i_height,
+ SetOffset( p_filter->fmt_in.video.i_width,
+ p_filter->fmt_in.video.i_height,
+ p_filter->fmt_out.video.i_width,
+ p_filter->fmt_out.video.i_height,
&b_hscale, &i_vscale, p_offset_start );
/*
* Perform conversion
*/
i_scale_count = ( i_vscale == 1 ) ?
- p_vout->output.i_height : p_vout->render.i_height;
- for( i_y = 0; i_y < p_vout->render.i_height; i_y++ )
+ p_filter->fmt_out.video.i_height :
+ p_filter->fmt_in.video.i_height;
+ for( i_y = 0; i_y < p_filter->fmt_in.video.i_height; i_y++ )
{
p_pic_start = p_pic;
p_buffer = b_hscale ? p_buffer_start : p_pic;
-#if defined (MODULE_NAME_IS_i420_rgb)
- for ( i_x = p_vout->render.i_width / 8; i_x--; )
+ for ( i_x = p_filter->fmt_in.video.i_width / 8; i_x--; )
{
CONVERT_YUV_PIXEL(2); CONVERT_Y_PIXEL(2);
CONVERT_YUV_PIXEL(2); CONVERT_Y_PIXEL(2);
CONVERT_YUV_PIXEL(2); CONVERT_Y_PIXEL(2);
CONVERT_YUV_PIXEL(2); CONVERT_Y_PIXEL(2);
}
-#elif defined (MODULE_NAME_IS_i420_rgb_mmx)
- if( p_vout->output.i_rmask == 0x7c00 )
- {
- /* 15bpp 5/5/5 */
- for ( i_x = p_vout->render.i_width / 8; i_x--; )
- {
-# if defined (HAVE_MMX_INTRINSICS)
- __m64 mm0, mm1, mm2, mm3, mm4, mm5, mm6, mm7;
- uint64_t tmp64;
- INTRINSICS_INIT_16
- INTRINSICS_YUV_MUL
- INTRINSICS_YUV_ADD
- INTRINSICS_UNPACK_15
-# else
- __asm__( MMX_INIT_16
- : : "r" (p_y), "r" (p_u), "r" (p_v), "r" (p_buffer) );
-
- __asm__( ".align 8"
- MMX_YUV_MUL
- MMX_YUV_ADD
- MMX_UNPACK_15
- : : "r" (p_y), "r" (p_u), "r" (p_v), "r" (p_buffer) );
-# endif
-
- p_y += 8;
- p_u += 4;
- p_v += 4;
- p_buffer += 8;
- }
- }
- else
- {
- /* 16bpp 5/6/5 */
- for ( i_x = p_vout->render.i_width / 8; i_x--; )
- {
-# if defined (HAVE_MMX_INTRINSICS)
- __m64 mm0, mm1, mm2, mm3, mm4, mm5, mm6, mm7;
- uint64_t tmp64;
- INTRINSICS_INIT_16
- INTRINSICS_YUV_MUL
- INTRINSICS_YUV_ADD
- INTRINSICS_UNPACK_16
-# else
- __asm__( MMX_INIT_16
- : : "r" (p_y), "r" (p_u), "r" (p_v), "r" (p_buffer) );
-
- __asm__( ".align 8"
- MMX_YUV_MUL
- MMX_YUV_ADD
- MMX_UNPACK_16
- : : "r" (p_y), "r" (p_u), "r" (p_v), "r" (p_buffer) );
-# endif
-
- p_y += 8;
- p_u += 4;
- p_v += 4;
- p_buffer += 8;
- }
- }
-#endif
/* Here we do some unaligned reads and duplicate conversions, but
* at least we have all the pixels */
if( i_rewind )
{
-#if defined (MODULE_NAME_IS_i420_rgb_mmx)
-# if defined (HAVE_MMX_INTRINSICS)
- __m64 mm0, mm1, mm2, mm3, mm4, mm5, mm6, mm7;
- uint64_t tmp64;
-# endif
-#endif
p_y -= i_rewind;
p_u -= i_rewind >> 1;
p_v -= i_rewind >> 1;
p_buffer -= i_rewind;
-#if defined (MODULE_NAME_IS_i420_rgb)
+
CONVERT_YUV_PIXEL(2); CONVERT_Y_PIXEL(2);
CONVERT_YUV_PIXEL(2); CONVERT_Y_PIXEL(2);
CONVERT_YUV_PIXEL(2); CONVERT_Y_PIXEL(2);
CONVERT_YUV_PIXEL(2); CONVERT_Y_PIXEL(2);
-#elif defined (MODULE_NAME_IS_i420_rgb_mmx)
-
-# if defined (HAVE_MMX_INTRINSICS)
- INTRINSICS_INIT_16
-# else
- __asm__( MMX_INIT_16
- : : "r" (p_y), "r" (p_u), "r" (p_v), "r" (p_buffer) );
-# endif
-
- if( p_vout->output.i_rmask == 0x7c00 )
- {
- /* 15bpp 5/5/5 */
-# if defined (HAVE_MMX_INTRINSICS)
- INTRINSICS_YUV_MUL
- INTRINSICS_YUV_ADD
- INTRINSICS_UNPACK_15
-# else
- __asm__( ".align 8"
- MMX_YUV_MUL
- MMX_YUV_ADD
- MMX_UNPACK_15
- : : "r" (p_y), "r" (p_u), "r" (p_v), "r" (p_buffer) );
-# endif
- }
- else
- {
-# if defined (HAVE_MMX_INTRINSICS)
- INTRINSICS_YUV_MUL
- INTRINSICS_YUV_ADD
- INTRINSICS_UNPACK_16
-# else
- /* 16bpp 5/6/5 */
- __asm__( ".align 8"
- MMX_YUV_MUL
- MMX_YUV_ADD
- MMX_UNPACK_16
- : : "r" (p_y), "r" (p_u), "r" (p_v), "r" (p_buffer) );
-# endif
- }
-
- p_y += 8;
- p_u += 4;
- p_v += 4;
- p_buffer += 8;
-#endif
}
SCALE_WIDTH;
SCALE_HEIGHT( 420, 2 );
* - input: 2 lines (2 Y lines, 1 U/V line)
* - output: 1 line
*****************************************************************************/
-void E_(I420_RGB32)( vout_thread_t *p_vout, picture_t *p_src,
- picture_t *p_dest )
+
+void I420_RGB32( filter_t *p_filter, picture_t *p_src, picture_t *p_dest )
{
/* We got this one from the old arguments */
uint32_t *p_pic = (uint32_t*)p_dest->p->p_pixels;
uint8_t *p_u = p_src->U_PIXELS;
uint8_t *p_v = p_src->V_PIXELS;
- vlc_bool_t b_hscale; /* horizontal scaling type */
+ bool b_hscale; /* horizontal scaling type */
unsigned int i_vscale; /* vertical scaling type */
unsigned int i_x, i_y; /* horizontal and vertical indexes */
int i_right_margin;
int i_rewind;
int i_scale_count; /* scale modulo counter */
- int i_chroma_width = p_vout->render.i_width / 2; /* chroma width */
+ int i_chroma_width = p_filter->fmt_in.video.i_width / 2; /* chroma width */
uint32_t * p_pic_start; /* beginning of the current line for copy */
-#if defined (MODULE_NAME_IS_i420_rgb)
int i_uval, i_vval; /* U and V samples */
int i_red, i_green, i_blue; /* U and V modified samples */
- uint32_t * p_yuv = p_vout->chroma.p_sys->p_rgb32;
+ uint32_t * p_yuv = p_filter->p_sys->p_rgb32;
uint32_t * p_ybase; /* Y dependant conversion table */
-#endif
/* Conversion buffer pointer */
- uint32_t * p_buffer_start = (uint32_t*)p_vout->chroma.p_sys->p_buffer;
+ uint32_t * p_buffer_start = (uint32_t*)p_filter->p_sys->p_buffer;
uint32_t * p_buffer;
/* Offset array pointer */
- int * p_offset_start = p_vout->chroma.p_sys->p_offset;
+ int * p_offset_start = p_filter->p_sys->p_offset;
int * p_offset;
const int i_source_margin = p_src->p[0].i_pitch
- p_src->p[1].i_visible_pitch;
i_right_margin = p_dest->p->i_pitch - p_dest->p->i_visible_pitch;
-
- if( p_vout->render.i_width & 7 )
- {
- i_rewind = 8 - ( p_vout->render.i_width & 7 );
- }
- else
- {
- i_rewind = 0;
- }
+ i_rewind = (-p_filter->fmt_in.video.i_width) & 7;
/* Rule: when a picture of size (x1,y1) with aspect ratio r1 is rendered
* on a picture of size (x2,y2) with aspect ratio r2, if x1 grows to x1'
* then y1 grows to y1' = x1' * y2/x2 * r2/r1 */
- SetOffset( p_vout->render.i_width, p_vout->render.i_height,
- p_vout->output.i_width, p_vout->output.i_height,
+ SetOffset( p_filter->fmt_in.video.i_width,
+ p_filter->fmt_in.video.i_height,
+ p_filter->fmt_out.video.i_width,
+ p_filter->fmt_out.video.i_height,
&b_hscale, &i_vscale, p_offset_start );
/*
* Perform conversion
*/
i_scale_count = ( i_vscale == 1 ) ?
- p_vout->output.i_height : p_vout->render.i_height;
- for( i_y = 0; i_y < p_vout->render.i_height; i_y++ )
+ p_filter->fmt_out.video.i_height :
+ p_filter->fmt_in.video.i_height;
+ for( i_y = 0; i_y < p_filter->fmt_in.video.i_height; i_y++ )
{
p_pic_start = p_pic;
p_buffer = b_hscale ? p_buffer_start : p_pic;
- for ( i_x = p_vout->render.i_width / 8; i_x--; )
+ for ( i_x = p_filter->fmt_in.video.i_width / 8; i_x--; )
{
-#if defined (MODULE_NAME_IS_i420_rgb)
CONVERT_YUV_PIXEL(4); CONVERT_Y_PIXEL(4);
CONVERT_YUV_PIXEL(4); CONVERT_Y_PIXEL(4);
CONVERT_YUV_PIXEL(4); CONVERT_Y_PIXEL(4);
CONVERT_YUV_PIXEL(4); CONVERT_Y_PIXEL(4);
-#elif defined (MODULE_NAME_IS_i420_rgb_mmx)
-# if defined (HAVE_MMX_INTRINSICS)
- __m64 mm0, mm1, mm2, mm3, mm4, mm5, mm6, mm7;
- uint64_t tmp64;
- INTRINSICS_INIT_32
- INTRINSICS_YUV_MUL
- INTRINSICS_YUV_ADD
- INTRINSICS_UNPACK_32
-# else
- __asm__( MMX_INIT_32
- : : "r" (p_y), "r" (p_u), "r" (p_v), "r" (p_buffer) );
-
- __asm__( ".align 8"
- MMX_YUV_MUL
- MMX_YUV_ADD
- MMX_UNPACK_32
- : : "r" (p_y), "r" (p_u), "r" (p_v), "r" (p_buffer) );
-# endif
-
- p_y += 8;
- p_u += 4;
- p_v += 4;
- p_buffer += 8;
-#endif
}
/* Here we do some unaligned reads and duplicate conversions, but
* at least we have all the pixels */
if( i_rewind )
{
-#if defined (MODULE_NAME_IS_i420_rgb_mmx)
-# if defined (HAVE_MMX_INTRINSICS)
- __m64 mm0, mm1, mm2, mm3, mm4, mm5, mm6, mm7;
- uint64_t tmp64;
-# endif
-#endif
p_y -= i_rewind;
p_u -= i_rewind >> 1;
p_v -= i_rewind >> 1;
p_buffer -= i_rewind;
-#if defined (MODULE_NAME_IS_i420_rgb)
CONVERT_YUV_PIXEL(4); CONVERT_Y_PIXEL(4);
CONVERT_YUV_PIXEL(4); CONVERT_Y_PIXEL(4);
CONVERT_YUV_PIXEL(4); CONVERT_Y_PIXEL(4);
CONVERT_YUV_PIXEL(4); CONVERT_Y_PIXEL(4);
-#elif defined (MODULE_NAME_IS_i420_rgb_mmx)
-# if defined (HAVE_MMX_INTRINSICS)
- INTRINSICS_INIT_32
- INTRINSICS_YUV_MUL
- INTRINSICS_YUV_ADD
- INTRINSICS_UNPACK_32
-# else
- __asm__( MMX_INIT_32
- : : "r" (p_y), "r" (p_u), "r" (p_v), "r" (p_buffer) );
-
- __asm__( ".align 8"
- MMX_YUV_MUL
- MMX_YUV_ADD
- MMX_UNPACK_32
- : : "r" (p_y), "r" (p_u), "r" (p_v), "r" (p_buffer) );
-# endif
-
- p_y += 8;
- p_u += 4;
- p_v += 4;
- p_buffer += 8;
-#endif
}
SCALE_WIDTH;
SCALE_HEIGHT( 420, 4 );
}
}
}
-
-/* Following functions are local */
-
-/*****************************************************************************
- * SetOffset: build offset array for conversion functions
- *****************************************************************************
- * This function will build an offset array used in later conversion functions.
- * It will also set horizontal and vertical scaling indicators.
- *****************************************************************************/
-static void SetOffset( int i_width, int i_height, int i_pic_width,
- int i_pic_height, vlc_bool_t *pb_hscale,
- unsigned int *pi_vscale, int *p_offset )
-{
- int i_x; /* x position in destination */
- int i_scale_count; /* modulo counter */
-
- /*
- * Prepare horizontal offset array
- */
- if( i_pic_width - i_width == 0 )
- {
- /* No horizontal scaling: YUV conversion is done directly to picture */
- *pb_hscale = 0;
- }
- else if( i_pic_width - i_width > 0 )
- {
- /* Prepare scaling array for horizontal extension */
- *pb_hscale = 1;
- i_scale_count = i_pic_width;
- for( i_x = i_width; i_x--; )
- {
- while( (i_scale_count -= i_width) > 0 )
- {
- *p_offset++ = 0;
- }
- *p_offset++ = 1;
- i_scale_count += i_pic_width;
- }
- }
- else /* if( i_pic_width - i_width < 0 ) */
- {
- /* Prepare scaling array for horizontal reduction */
- *pb_hscale = 1;
- i_scale_count = i_width;
- for( i_x = i_pic_width; i_x--; )
- {
- *p_offset = 1;
- while( (i_scale_count -= i_pic_width) > 0 )
- {
- *p_offset += 1;
- }
- p_offset++;
- i_scale_count += i_width;
- }
- }
-
- /*
- * Set vertical scaling indicator
- */
- if( i_pic_height - i_height == 0 )
- {
- *pi_vscale = 0;
- }
- else if( i_pic_height - i_height > 0 )
- {
- *pi_vscale = 1;
- }
- else /* if( i_pic_height - i_height < 0 ) */
- {
- *pi_vscale = -1;
- }
-}
-
projects / vlc / blobdiff