1 /*****************************************************************************
2 * i422_yuy2.c : YUV to YUV conversion module for vlc
3 *****************************************************************************
4 * Copyright (C) 2000, 2001 the VideoLAN team
7 * Authors: Samuel Hocevar <sam@zoy.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 #include <string.h> /* strerror() */
28 #include <stdlib.h> /* malloc(), free() */
33 #include "i422_yuy2.h"
35 #define SRC_FOURCC "I422"
36 #if defined (MODULE_NAME_IS_i422_yuy2)
37 # define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv,Y211"
39 # define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv"
42 /*****************************************************************************
43 * Local and extern prototypes.
44 *****************************************************************************/
45 static int Activate ( vlc_object_t * );
47 static void I422_YUY2 ( vout_thread_t *, picture_t *, picture_t * );
48 static void I422_YVYU ( vout_thread_t *, picture_t *, picture_t * );
49 static void I422_UYVY ( vout_thread_t *, picture_t *, picture_t * );
50 static void I422_IUYV ( vout_thread_t *, picture_t *, picture_t * );
51 static void I422_cyuv ( vout_thread_t *, picture_t *, picture_t * );
52 #if defined (MODULE_NAME_IS_i422_yuy2)
53 static void I422_Y211 ( vout_thread_t *, picture_t *, picture_t * );
54 static void I422_Y211 ( vout_thread_t *, picture_t *, picture_t * );
55 static void I422_YV12 ( vout_thread_t *, picture_t *, picture_t * );
58 /*****************************************************************************
60 *****************************************************************************/
62 #if defined (MODULE_NAME_IS_i422_yuy2)
63 set_description( _("Conversions from " SRC_FOURCC " to " DEST_FOURCC) );
64 set_capability( "chroma", 80 );
65 #elif defined (MODULE_NAME_IS_i422_yuy2_mmx)
66 set_description( _("MMX conversions from " SRC_FOURCC " to " DEST_FOURCC) );
67 set_capability( "chroma", 100 );
68 add_requirement( MMX );
70 set_callbacks( Activate, NULL );
73 /*****************************************************************************
74 * Activate: allocate a chroma function
75 *****************************************************************************
76 * This function allocates and initializes a chroma function
77 *****************************************************************************/
78 static int Activate( vlc_object_t *p_this )
80 vout_thread_t *p_vout = (vout_thread_t *)p_this;
82 if( p_vout->render.i_width & 1 || p_vout->render.i_height & 1 )
87 switch( p_vout->render.i_chroma )
89 case VLC_FOURCC('I','4','2','2'):
90 switch( p_vout->output.i_chroma )
92 case VLC_FOURCC('Y','U','Y','2'):
93 case VLC_FOURCC('Y','U','N','V'):
94 p_vout->chroma.pf_convert = I422_YUY2;
97 case VLC_FOURCC('Y','V','Y','U'):
98 p_vout->chroma.pf_convert = I422_YVYU;
101 case VLC_FOURCC('U','Y','V','Y'):
102 case VLC_FOURCC('U','Y','N','V'):
103 case VLC_FOURCC('Y','4','2','2'):
104 p_vout->chroma.pf_convert = I422_UYVY;
107 case VLC_FOURCC('I','U','Y','V'):
108 p_vout->chroma.pf_convert = I422_IUYV;
111 case VLC_FOURCC('c','y','u','v'):
112 p_vout->chroma.pf_convert = I422_cyuv;
115 #if defined (MODULE_NAME_IS_i422_yuy2)
116 case VLC_FOURCC('Y','2','1','1'):
117 p_vout->chroma.pf_convert = I422_Y211;
120 case VLC_FOURCC('Y','V','1','2'):
121 p_vout->chroma.pf_convert = I422_YV12;
137 /* Following functions are local */
139 /*****************************************************************************
140 * I422_YUY2: planar YUV 4:2:2 to packed YUY2 4:2:2
141 *****************************************************************************/
142 static void I422_YUY2( vout_thread_t *p_vout, picture_t *p_source,
145 uint8_t *p_pixels = p_dest->p->p_pixels;
146 int i_pitch = p_dest->p->i_pitch;
147 uint8_t *p_y = p_source->Y_PIXELS;
148 uint8_t *p_u = p_source->U_PIXELS;
149 uint8_t *p_v = p_source->V_PIXELS;
153 for( i_y = p_vout->render.i_height ; i_y-- ; )
155 uint8_t *p_line = p_pixels;
156 for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
158 #if defined (MODULE_NAME_IS_i422_yuy2)
159 C_YUV422_YUYV( p_line, p_y, p_u, p_v );
160 C_YUV422_YUYV( p_line, p_y, p_u, p_v );
161 C_YUV422_YUYV( p_line, p_y, p_u, p_v );
162 C_YUV422_YUYV( p_line, p_y, p_u, p_v );
164 __asm__( ".p2align 3" MMX_YUV422_YUYV
165 : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
167 p_line += 16; p_y += 8; p_u += 4; p_v += 4;
174 /*****************************************************************************
175 * I422_YVYU: planar YUV 4:2:2 to packed YVYU 4:2:2
176 *****************************************************************************/
177 static void I422_YVYU( vout_thread_t *p_vout, picture_t *p_source,
180 uint8_t *p_pixels = p_dest->p->p_pixels;
181 int i_pitch = p_dest->p->i_pitch;
182 uint8_t *p_y = p_source->Y_PIXELS;
183 uint8_t *p_u = p_source->U_PIXELS;
184 uint8_t *p_v = p_source->V_PIXELS;
188 for( i_y = p_vout->render.i_height ; i_y-- ; )
190 uint8_t *p_line = p_pixels;
191 for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
193 #if defined (MODULE_NAME_IS_i422_yuy2)
194 C_YUV422_YVYU( p_line, p_y, p_u, p_v );
195 C_YUV422_YVYU( p_line, p_y, p_u, p_v );
196 C_YUV422_YVYU( p_line, p_y, p_u, p_v );
197 C_YUV422_YVYU( p_line, p_y, p_u, p_v );
199 __asm__( ".p2align 3" MMX_YUV422_YVYU
200 : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
202 p_line += 16; p_y += 8; p_u += 4; p_v += 4;
209 /*****************************************************************************
210 * I422_UYVY: planar YUV 4:2:2 to packed UYVY 4:2:2
211 *****************************************************************************/
212 static void I422_UYVY( vout_thread_t *p_vout, picture_t *p_source,
215 uint8_t *p_pixels = p_dest->p->p_pixels;
216 int i_pitch = p_dest->p->i_pitch;
217 uint8_t *p_y = p_source->Y_PIXELS;
218 uint8_t *p_u = p_source->U_PIXELS;
219 uint8_t *p_v = p_source->V_PIXELS;
223 for( i_y = p_vout->render.i_height ; i_y-- ; )
225 uint8_t *p_line = p_pixels;
226 for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
228 #if defined (MODULE_NAME_IS_i422_yuy2)
229 C_YUV422_UYVY( p_line, p_y, p_u, p_v );
230 C_YUV422_UYVY( p_line, p_y, p_u, p_v );
231 C_YUV422_UYVY( p_line, p_y, p_u, p_v );
232 C_YUV422_UYVY( p_line, p_y, p_u, p_v );
234 __asm__( ".p2align 3" MMX_YUV422_UYVY
235 : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
237 p_line += 16; p_y += 8; p_u += 4; p_v += 4;
244 /*****************************************************************************
245 * I422_IUYV: planar YUV 4:2:2 to interleaved packed IUYV 4:2:2
246 *****************************************************************************/
247 static void I422_IUYV( vout_thread_t *p_vout, picture_t *p_source,
251 msg_Err( p_vout, "I422_IUYV unimplemented, please harass <sam@zoy.org>" );
254 /*****************************************************************************
255 * I422_cyuv: planar YUV 4:2:2 to upside-down packed UYVY 4:2:2
256 *****************************************************************************/
257 static void I422_cyuv( vout_thread_t *p_vout, picture_t *p_source,
260 uint8_t *p_line = p_dest->p->p_pixels + p_dest->p->i_visible_lines * p_dest->p->i_pitch;
261 uint8_t *p_y = p_source->Y_PIXELS;
262 uint8_t *p_u = p_source->U_PIXELS;
263 uint8_t *p_v = p_source->V_PIXELS;
267 for( i_y = p_vout->render.i_height ; i_y-- ; )
269 for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
271 p_line -= 2 * p_dest->p->i_pitch;
273 #if defined (MODULE_NAME_IS_i422_yuy2)
274 C_YUV422_UYVY( p_line, p_y, p_u, p_v );
275 C_YUV422_UYVY( p_line, p_y, p_u, p_v );
276 C_YUV422_UYVY( p_line, p_y, p_u, p_v );
277 C_YUV422_UYVY( p_line, p_y, p_u, p_v );
279 __asm__( ".p2align 3" MMX_YUV422_UYVY
280 : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) );
282 p_line += 16; p_y += 8; p_u += 4; p_v += 4;
288 /*****************************************************************************
289 * I422_Y211: planar YUV 4:2:2 to packed YUYV 2:1:1
290 *****************************************************************************/
291 #if defined (MODULE_NAME_IS_i422_yuy2)
292 static void I422_Y211( vout_thread_t *p_vout, picture_t *p_source,
295 uint8_t *p_line = p_dest->p->p_pixels + p_dest->p->i_visible_lines * p_dest->p->i_pitch;
296 uint8_t *p_y = p_source->Y_PIXELS;
297 uint8_t *p_u = p_source->U_PIXELS;
298 uint8_t *p_v = p_source->V_PIXELS;
302 for( i_y = p_vout->render.i_height ; i_y-- ; )
304 for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
306 C_YUV422_Y211( p_line, p_y, p_u, p_v );
307 C_YUV422_Y211( p_line, p_y, p_u, p_v );
314 /*****************************************************************************
315 * I422_YV12: planar YUV 4:2:2 to planar YV12
316 *****************************************************************************/
317 #if defined (MODULE_NAME_IS_i422_yuy2)
318 static void I422_YV12( vout_thread_t *p_vout, picture_t *p_source,
321 uint16_t i_dpy = p_dest->p[Y_PLANE].i_pitch;
322 uint16_t i_spy = p_source->p[Y_PLANE].i_pitch;
323 uint16_t i_dpuv = p_dest->p[U_PLANE].i_pitch;
324 uint16_t i_spuv = p_source->p[U_PLANE].i_pitch;
325 uint16_t i_width = p_vout->render.i_width;
326 uint16_t i_y = p_vout->render.i_height;
327 uint8_t *p_dy = p_dest->Y_PIXELS + (i_y-1)*i_dpy;
328 uint8_t *p_y = p_source->Y_PIXELS + (i_y-1)*i_spy;
329 uint8_t *p_du = p_dest->U_PIXELS + (i_y/2-1)*i_dpuv;
330 uint8_t *p_u = p_source->U_PIXELS + (i_y-1)*i_spuv;
331 uint8_t *p_dv = p_dest->V_PIXELS + (i_y/2-1)*i_dpuv;
332 uint8_t *p_v = p_source->V_PIXELS + (i_y-1)*i_spuv;
337 memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
338 memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
339 memcpy(p_du, p_u, i_width/2); p_du -= i_dpuv; p_u -= 2*i_spuv;
340 memcpy(p_dv, p_v, i_width/2); p_dv -= i_dpuv; p_v -= 2*i_spuv;