* modules/video_chroma/i422_yuy2.c: fixed the I422 MMX conversion routines. The fix...
[vlc.git] / modules / video_chroma / i422_yuy2.c
1 /*****************************************************************************
2  * i422_yuy2.c : YUV to YUV conversion module for vlc
3  *****************************************************************************
4  * Copyright (C) 2000, 2001 VideoLAN
5  * $Id$
6  *
7  * Authors: Samuel Hocevar <sam@zoy.org>
8  *
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.
13  * 
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.
18  *
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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
22  *****************************************************************************/
23
24 /*****************************************************************************
25  * Preamble
26  *****************************************************************************/
27 #include <string.h>                                            /* strerror() */
28 #include <stdlib.h>                                      /* malloc(), free() */
29
30 #include <vlc/vlc.h>
31 #include <vlc/vout.h>
32
33 #include "i422_yuy2.h"
34
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"
38 #else
39 #    define DEST_FOURCC "YUY2,YUNV,YVYU,UYVY,UYNV,Y422,IUYV,cyuv"
40 #endif
41
42 /*****************************************************************************
43  * Local and extern prototypes.
44  *****************************************************************************/
45 static int  Activate ( vlc_object_t * );
46
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 * );
56 #endif
57
58 /*****************************************************************************
59  * Module descriptor
60  *****************************************************************************/
61 vlc_module_begin();
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 );
69 #endif
70     set_callbacks( Activate, NULL );
71 vlc_module_end();
72
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 )
79 {
80     vout_thread_t *p_vout = (vout_thread_t *)p_this;
81
82     if( p_vout->render.i_width & 1 || p_vout->render.i_height & 1 )
83     {
84         return -1;
85     }
86
87     switch( p_vout->render.i_chroma )
88     {
89         case VLC_FOURCC('I','4','2','2'):
90             switch( p_vout->output.i_chroma )
91             {
92                 case VLC_FOURCC('Y','U','Y','2'):
93                 case VLC_FOURCC('Y','U','N','V'):
94                     p_vout->chroma.pf_convert = I422_YUY2;
95                     break;
96
97                 case VLC_FOURCC('Y','V','Y','U'):
98                     p_vout->chroma.pf_convert = I422_YVYU;
99                     break;
100
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;
105                     break;
106
107                 case VLC_FOURCC('I','U','Y','V'):
108                     p_vout->chroma.pf_convert = I422_IUYV;
109                     break;
110
111                 case VLC_FOURCC('c','y','u','v'):
112                     p_vout->chroma.pf_convert = I422_cyuv;
113                     break;
114
115 #if defined (MODULE_NAME_IS_i422_yuy2)
116                 case VLC_FOURCC('Y','2','1','1'):
117                     p_vout->chroma.pf_convert = I422_Y211;
118                     break;
119
120                 case VLC_FOURCC('Y','V','1','2'):
121                     p_vout->chroma.pf_convert = I422_YV12;
122                     break;
123 #endif
124
125                 default:
126                     return -1;
127             }
128             break;
129
130         default:
131             return -1;
132     }
133     
134     return 0; 
135 }
136
137 /* Following functions are local */
138
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,
143                                               picture_t *p_dest )
144 {
145     uint8_t *p_line = p_dest->p->p_pixels;
146     uint8_t *p_y = p_source->Y_PIXELS;
147     uint8_t *p_u = p_source->U_PIXELS;
148     uint8_t *p_v = p_source->V_PIXELS;
149
150     int i_x, i_y;
151
152     for( i_y = p_vout->render.i_height ; i_y-- ; )
153     {
154         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
155         {
156 #if defined (MODULE_NAME_IS_i422_yuy2)
157             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
158             C_YUV422_YUYV( p_line, p_y, p_u, p_v );
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 #else
162             __asm__( ".align 8" MMX_YUV422_YUYV
163                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) ); 
164
165             p_line += 16; p_y += 8; p_u += 4; p_v += 4;
166 #endif
167         }
168     }
169 }
170
171 /*****************************************************************************
172  * I422_YVYU: planar YUV 4:2:2 to packed YVYU 4:2:2
173  *****************************************************************************/
174 static void I422_YVYU( vout_thread_t *p_vout, picture_t *p_source,
175                                               picture_t *p_dest )
176 {
177     uint8_t *p_line = p_dest->p->p_pixels;
178     uint8_t *p_y = p_source->Y_PIXELS;
179     uint8_t *p_u = p_source->U_PIXELS;
180     uint8_t *p_v = p_source->V_PIXELS;
181
182     int i_x, i_y;
183
184     for( i_y = p_vout->render.i_height ; i_y-- ; )
185     {
186         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
187         {
188 #if defined (MODULE_NAME_IS_i422_yuy2)
189             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
190             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
191             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
192             C_YUV422_YVYU( p_line, p_y, p_u, p_v );
193 #else
194             __asm__( ".align 8" MMX_YUV422_YVYU
195                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) ); 
196
197             p_line += 16; p_y += 8; p_u += 4; p_v += 4;
198 #endif
199         }
200     }
201 }
202
203 /*****************************************************************************
204  * I422_UYVY: planar YUV 4:2:2 to packed UYVY 4:2:2
205  *****************************************************************************/
206 static void I422_UYVY( vout_thread_t *p_vout, picture_t *p_source,
207                                               picture_t *p_dest )
208 {
209     uint8_t *p_line = p_dest->p->p_pixels;
210     uint8_t *p_y = p_source->Y_PIXELS;
211     uint8_t *p_u = p_source->U_PIXELS;
212     uint8_t *p_v = p_source->V_PIXELS;
213
214     int i_x, i_y;
215
216     for( i_y = p_vout->render.i_height ; i_y-- ; )
217     {
218         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
219         {
220 #if defined (MODULE_NAME_IS_i422_yuy2)
221             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
222             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
223             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
224             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
225 #else
226             __asm__( ".align 8" MMX_YUV422_UYVY
227                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) ); 
228
229             p_line += 16; p_y += 8; p_u += 4; p_v += 4;
230 #endif
231         }
232     }
233 }
234
235 /*****************************************************************************
236  * I422_IUYV: planar YUV 4:2:2 to interleaved packed IUYV 4:2:2
237  *****************************************************************************/
238 static void I422_IUYV( vout_thread_t *p_vout, picture_t *p_source,
239                                               picture_t *p_dest )
240 {
241     /* FIXME: TODO ! */
242     msg_Err( p_vout, "I422_IUYV unimplemented, please harass <sam@zoy.org>" );
243 }
244
245 /*****************************************************************************
246  * I422_cyuv: planar YUV 4:2:2 to upside-down packed UYVY 4:2:2
247  *****************************************************************************/
248 static void I422_cyuv( vout_thread_t *p_vout, picture_t *p_source,
249                                               picture_t *p_dest )
250 {
251     uint8_t *p_line = p_dest->p->p_pixels + p_dest->p->i_lines * p_dest->p->i_pitch;
252     uint8_t *p_y = p_source->Y_PIXELS;
253     uint8_t *p_u = p_source->U_PIXELS;
254     uint8_t *p_v = p_source->V_PIXELS;
255
256     int i_x, i_y;
257
258     for( i_y = p_vout->render.i_height ; i_y-- ; )
259     {
260         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
261         {
262             p_line -= 2 * p_dest->p->i_pitch;
263
264 #if defined (MODULE_NAME_IS_i422_yuy2)
265             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
266             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
267             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
268             C_YUV422_UYVY( p_line, p_y, p_u, p_v );
269 #else
270             __asm__( ".align 8" MMX_YUV422_UYVY
271                      : : "r" (p_line), "r" (p_y), "r" (p_u), "r" (p_v) ); 
272
273             p_line += 16; p_y += 8; p_u += 4; p_v += 4;
274 #endif
275         }
276     }
277 }
278
279 /*****************************************************************************
280  * I422_Y211: planar YUV 4:2:2 to packed YUYV 2:1:1
281  *****************************************************************************/
282 #if defined (MODULE_NAME_IS_i422_yuy2)
283 static void I422_Y211( vout_thread_t *p_vout, picture_t *p_source,
284                                               picture_t *p_dest )
285 {
286     uint8_t *p_line = p_dest->p->p_pixels + p_dest->p->i_lines * p_dest->p->i_pitch;
287     uint8_t *p_y = p_source->Y_PIXELS;
288     uint8_t *p_u = p_source->U_PIXELS;
289     uint8_t *p_v = p_source->V_PIXELS;
290
291     int i_x, i_y;
292
293     for( i_y = p_vout->render.i_height ; i_y-- ; )
294     {
295         for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
296         {
297             C_YUV422_Y211( p_line, p_y, p_u, p_v );
298             C_YUV422_Y211( p_line, p_y, p_u, p_v );
299         }
300     }
301 }
302 #endif
303
304
305 /*****************************************************************************
306  * I422_YV12: planar YUV 4:2:2 to planar YV12
307  *****************************************************************************/
308 #if defined (MODULE_NAME_IS_i422_yuy2)
309 static void I422_YV12( vout_thread_t *p_vout, picture_t *p_source,
310                                               picture_t *p_dest )
311 {
312     uint16_t i_dpy = p_dest->p[Y_PLANE].i_pitch;
313     uint16_t i_spy = p_source->p[Y_PLANE].i_pitch;
314     uint16_t i_dpuv = p_dest->p[U_PLANE].i_pitch;
315     uint16_t i_spuv = p_source->p[U_PLANE].i_pitch;
316     uint16_t i_width = p_vout->render.i_width;
317     uint16_t i_y = p_vout->render.i_height;
318     uint8_t *p_dy = p_dest->Y_PIXELS + (i_y-1)*i_dpy;
319     uint8_t *p_y = p_source->Y_PIXELS + (i_y-1)*i_spy;
320     uint8_t *p_du = p_dest->U_PIXELS + (i_y/2-1)*i_dpuv;
321     uint8_t *p_u = p_source->U_PIXELS + (i_y-1)*i_spuv;
322     uint8_t *p_dv = p_dest->V_PIXELS + (i_y/2-1)*i_dpuv;
323     uint8_t *p_v = p_source->V_PIXELS + (i_y-1)*i_spuv;
324     i_y /= 2;
325
326     for ( ; i_y--; )
327     {
328         memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
329         memcpy(p_dy, p_y, i_width); p_dy -= i_dpy; p_y -= i_spy;
330         memcpy(p_du, p_u, i_width/2); p_du -= i_dpuv; p_u -= 2*i_spuv;
331         memcpy(p_dv, p_v, i_width/2); p_dv -= i_dpuv; p_v -= 2*i_spuv;
332     }
333
334 }
335 #endif