1 /*
2  * This file is part of MPlayer.
3  *
4  * MPlayer is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * MPlayer is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License along
15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17  */
18 
19 #include "fastmemcpy.h"
20 #include "cpudetect.h"
21 #include "libmpcodecs/vf.h"
22 #include "libswscale/swscale.h"
23 #include "libavutil/imgutils.h"
24 #include "libmpcodecs/vf_scale.h"
25 #include "mp_msg.h"
26 #include "help_mp.h"
27 
28 // mga_vid drawing functions
29 static void set_window( void );		/* forward declaration to kill warnings */
30 #ifdef VO_XMGA
31 static void mDrawColorKey( void );	/* forward declaration to kill warnings */
32 #endif
33 
34 static int mga_next_frame=0;
35 
36 static mga_vid_config_t mga_vid_config;
37 static uint8_t *vid_data, *frames[4];
38 static int f = -1;
39 
40 static uint32_t               drwX,drwY,drwWidth,drwHeight;
41 static uint32_t               drwcX,drwcY;
42 
43 static struct SwsContext *sws_ctx;
44 
draw_alpha(int x0,int y0,int w,int h,unsigned char * src,unsigned char * srca,int stride)45 static void draw_alpha(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
46     uint32_t bespitch = FFALIGN(mga_vid_config.src_width, 32);
47     x0+=mga_vid_config.src_width*(vo_panscan_x>>1)/(vo_dwidth+vo_panscan_x);
48     switch(mga_vid_config.format){
49     case MGA_VID_FORMAT_YV12:
50     case MGA_VID_FORMAT_IYUV:
51     case MGA_VID_FORMAT_I420:
52         vo_draw_alpha_yv12(w,h,src,srca,stride,vid_data+bespitch*y0+x0,bespitch);
53         break;
54     case MGA_VID_FORMAT_YUY2:
55         vo_draw_alpha_yuy2(w,h,src,srca,stride,vid_data+2*(bespitch*y0+x0),2*bespitch);
56         break;
57     case MGA_VID_FORMAT_UYVY:
58         vo_draw_alpha_yuy2(w,h,src,srca,stride,vid_data+2*(bespitch*y0+x0)+1,2*bespitch);
59         break;
60     }
61 }
62 
draw_osd(void)63 static void draw_osd(void)
64 {
65 //    vo_draw_text(mga_vid_config.src_width,mga_vid_config.src_height,draw_alpha);
66     vo_draw_text(mga_vid_config.src_width-mga_vid_config.src_width*vo_panscan_x/(vo_dwidth+vo_panscan_x),mga_vid_config.src_height,draw_alpha);
67 }
68 
69 
70 static void
draw_slice_g200(uint8_t * image[],int stride[],int width,int height,int x,int y)71 draw_slice_g200(uint8_t *image[], int stride[], int width,int height,int x,int y)
72 {
73 	uint32_t bespitch = FFALIGN(mga_vid_config.src_width, 32);
74 	int dst_stride[4] = { bespitch, bespitch };
75 	uint8_t *dst[4];
76 
77 	av_image_fill_pointers(dst, AV_PIX_FMT_NV12, mga_vid_config.src_height,
78 	                       vid_data, dst_stride);
79 
80 	sws_scale(sws_ctx, image, stride, y, height, dst, dst_stride);
81 }
82 
83 static void
draw_slice_g400(uint8_t * image[],int stride[],int w,int h,int x,int y)84 draw_slice_g400(uint8_t *image[], int stride[], int w,int h,int x,int y)
85 {
86     uint8_t *dest;
87     uint8_t *dest2;
88     uint32_t bespitch,bespitch2;
89 
90     bespitch = FFALIGN(mga_vid_config.src_width, 32);
91     bespitch2 = bespitch/2;
92 
93     dest = vid_data + bespitch * y + x;
94     mem2agpcpy_pic(dest, image[0], w, h, bespitch, stride[0]);
95 
96     w/=2;h/=2;x/=2;y/=2;
97 
98     dest = vid_data + bespitch*mga_vid_config.src_height + bespitch2 * y + x;
99     dest2= dest + bespitch2*mga_vid_config.src_height / 2;
100 
101   if(mga_vid_config.format==MGA_VID_FORMAT_YV12){
102     // mga_vid's YV12 assumes Y,U,V order (instead of Y,V,U) :(
103     mem2agpcpy_pic(dest, image[1], w, h, bespitch2, stride[1]);
104     mem2agpcpy_pic(dest2,image[2], w, h, bespitch2, stride[2]);
105   } else {
106     mem2agpcpy_pic(dest, image[2], w, h, bespitch2, stride[2]);
107     mem2agpcpy_pic(dest2,image[1], w, h, bespitch2, stride[1]);
108   }
109 
110 }
111 
112 static int
draw_slice(uint8_t * src[],int stride[],int w,int h,int x,int y)113 draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
114 {
115 
116 #if 0
117 	printf("vo: %p/%d %p/%d %p/%d  %dx%d/%d;%d  \n",
118 	    src[0],stride[0],
119 	    src[1],stride[1],
120 	    src[2],stride[2],
121 	    w,h,x,y);
122 #endif
123 
124 	if (mga_vid_config.card_type == MGA_G200)
125             draw_slice_g200(src,stride,w,h,x,y);
126 	else
127             draw_slice_g400(src,stride,w,h,x,y);
128 	return 0;
129 }
130 
131 static void
vo_mga_flip_page(void)132 vo_mga_flip_page(void)
133 {
134 
135 //    printf("-- flip to %d --\n",mga_next_frame);
136 
137 	ioctl(f,MGA_VID_FSEL,&mga_next_frame);
138 	mga_next_frame=(mga_next_frame+1)%mga_vid_config.num_frames;
139 	vid_data=frames[mga_next_frame];
140 
141 }
142 
get_image(mp_image_t * mpi)143 static uint32_t get_image(mp_image_t *mpi){
144     uint32_t bespitch = FFALIGN(mga_vid_config.src_width, 32);
145     uint32_t bespitch2 = bespitch/2;
146 //    printf("mga: get_image() called\n");
147     if(mpi->type==MP_IMGTYPE_STATIC && mga_vid_config.num_frames>1) return VO_FALSE; // it is not static
148     if(mpi->flags&MP_IMGFLAG_READABLE) return VO_FALSE; // slow video ram
149     if(mga_vid_config.card_type == MGA_G200 && mpi->flags&MP_IMGFLAG_PLANAR) return VO_FALSE;
150 //    printf("width=%d vs. bespitch=%d, flags=0x%X  \n",mpi->width,bespitch,mpi->flags);
151     if((mpi->width==bespitch) ||
152        (mpi->flags&(MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_ACCEPT_WIDTH))){
153        // we're lucky or codec accepts stride => ok, let's go!
154        if(mpi->flags&MP_IMGFLAG_PLANAR){
155 	   mpi->planes[0]=vid_data;
156 	   if(mpi->flags&MP_IMGFLAG_SWAPPED){
157 	       mpi->planes[1]=vid_data + bespitch*mga_vid_config.src_height;
158 	       mpi->planes[2]=mpi->planes[1] + bespitch2*mga_vid_config.src_height/2;
159 	   } else {
160 	       mpi->planes[2]=vid_data + bespitch*mga_vid_config.src_height;
161 	       mpi->planes[1]=mpi->planes[2] + bespitch2*mga_vid_config.src_height/2;
162 	   }
163 	   mpi->width=mpi->stride[0]=bespitch;
164 	   mpi->stride[1]=mpi->stride[2]=bespitch2;
165        } else {
166            mpi->planes[0]=vid_data;
167 	   mpi->width=bespitch;
168 	   mpi->stride[0]=mpi->width*(mpi->bpp/8);
169        }
170        mpi->flags|=MP_IMGFLAG_DIRECT;
171 //	printf("mga: get_image() SUCCESS -> Direct Rendering ENABLED\n");
172        return VO_TRUE;
173     }
174     return VO_FALSE;
175 }
176 
177 static uint32_t
draw_image(mp_image_t * mpi)178 draw_image(mp_image_t *mpi){
179     uint32_t bespitch = FFALIGN(mga_vid_config.src_width, 32);
180 
181     // if -dr or -slices then do nothing:
182     if(mpi->flags&(MP_IMGFLAG_DIRECT|MP_IMGFLAG_DRAW_CALLBACK)) return VO_TRUE;
183 
184     if(mpi->flags&MP_IMGFLAG_PLANAR){
185 	// copy planar:
186         draw_slice(mpi->planes,mpi->stride,mpi->w,mpi->h,mpi->x,mpi->y);
187     } else {
188 	// copy packed:
189 	mem2agpcpy_pic(vid_data, mpi->planes[0],	// dst,src
190 		    mpi->w*(mpi->bpp/8), mpi->h,	// w,h
191 		    bespitch*2, mpi->stride[0]);	// dstride,sstride
192     }
193     return VO_TRUE;
194 }
195 
196 static int
query_format(uint32_t format)197 query_format(uint32_t format)
198 {
199     switch(format){
200     case IMGFMT_YV12:
201     case IMGFMT_I420:
202     case IMGFMT_IYUV:
203     case IMGFMT_YUY2:
204     case IMGFMT_UYVY:
205         return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD|VFCAP_HWSCALE_UP|VFCAP_HWSCALE_DOWN|VFCAP_ACCEPT_STRIDE;
206     }
207     return 0;
208 }
209 
210 #ifndef VO_XMGA
mga_fullscreen(void)211 static void mga_fullscreen(void)
212 {
213 	uint32_t w,h;
214 	if ( !vo_fs ) {
215 		vo_fs=VO_TRUE;
216 		w=vo_screenwidth; h=vo_screenheight;
217 		aspect(&w,&h,A_ZOOM);
218 	} else {
219 		vo_fs=VO_FALSE;
220 		w=vo_dwidth; h=vo_dheight;
221 		aspect(&w,&h,A_NOZOOM);
222 	}
223 	mga_vid_config.dest_width = w;
224 	mga_vid_config.dest_height= h;
225 	mga_vid_config.x_org=(vo_screenwidth-w)/2;
226 	mga_vid_config.y_org=(vo_screenheight-h)/2;
227 	if ( ioctl( f,MGA_VID_CONFIG,&mga_vid_config ) )
228 		mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_MGA_ErrorInConfigIoctl );
229 }
230 #endif
231 
control(uint32_t request,void * data)232 static int control(uint32_t request, void *data)
233 {
234   switch (request) {
235   case VOCTRL_QUERY_FORMAT:
236     return query_format(*((uint32_t*)data));
237   case VOCTRL_GET_IMAGE:
238     return get_image(data);
239   case VOCTRL_DRAW_IMAGE:
240     return draw_image(data);
241   case VOCTRL_SET_EQUALIZER:
242     {
243      vf_equalizer_t *eq=data;
244      short value;
245      uint32_t luma,prev;
246 
247      if ( strcmp( eq->item,"brightness" ) && strcmp( eq->item,"contrast" ) ) return VO_FALSE;
248 
249      if (ioctl(f,MGA_VID_GET_LUMA,&prev)) {
250 	perror("Error in mga_vid_config ioctl()");
251     mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_MGA_CouldNotGetLumaValuesFromTheKernelModule);
252 	return VO_FALSE;
253      }
254 
255 //     printf("GET: 0x%4X 0x%4X  \n",(prev>>16),(prev&0xffff));
256 
257 //     printf("value: %d -> ",eq->value);
258      value=((eq->value+100)*255)/200-128; // maps -100=>-128 and +100=>127
259 //     printf("%d  \n",value);
260 
261      if(!strcmp(data,"contrast"))
262          luma = (prev&0xFFFF0000)|(value&0xFFFF);
263      else
264          luma = (prev&0xFFFF)|(value<<16);
265 
266      if (ioctl(f,MGA_VID_SET_LUMA,luma)) {
267 	perror("Error in mga_vid_config ioctl()");
268         mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_MGA_CouldNotSetLumaValuesFromTheKernelModule);
269 	return VO_FALSE;
270      }
271 
272      return VO_TRUE;
273     }
274 
275   case VOCTRL_GET_EQUALIZER:
276     {
277      vf_equalizer_t *eq=data;
278      short val;
279      uint32_t luma;
280 
281      if ( strcmp( eq->item,"brightness" ) && strcmp( eq->item,"contrast" ) ) return VO_FALSE;
282 
283      if (ioctl(f,MGA_VID_GET_LUMA,&luma)) {
284 	perror("Error in mga_vid_config ioctl()");
285         mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_MGA_CouldNotGetLumaValuesFromTheKernelModule);
286 	return VO_FALSE;
287      }
288 
289      if ( !strcmp( eq->item,"contrast" ) )
290 	 val=(luma & 0xFFFF);
291      else
292 	 val=(luma >> 16);
293 
294      eq->value = (val*200)/255;
295 
296      return VO_TRUE;
297     }
298 
299 #ifndef VO_XMGA
300   case VOCTRL_FULLSCREEN:
301     if (vo_screenwidth && vo_screenheight)
302 	mga_fullscreen();
303     else
304 	mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_MGA_ScreenWidthHeightUnknown);
305     return VO_TRUE;
306   case VOCTRL_GET_PANSCAN:
307       if ( !vo_fs ) return VO_FALSE;
308       return VO_TRUE;
309 #endif
310 
311 #if defined(VO_XMGA)
312   case VOCTRL_GUISUPPORT:
313     return VO_TRUE;
314 #endif
315 
316 #ifdef VO_XMGA
317   case VOCTRL_ONTOP:
318       vo_x11_ontop();
319       return VO_TRUE;
320   case VOCTRL_GET_PANSCAN:
321       if ( !initialized || !vo_fs ) return VO_FALSE;
322       return VO_TRUE;
323   case VOCTRL_FULLSCREEN:
324       vo_x11_fullscreen();
325       vo_panscan_amount=0;
326     /* intended, fallthrough to update panscan on fullscreen/windowed switch */
327 #endif
328   case VOCTRL_SET_PANSCAN:
329       if ( vo_fs && ( vo_panscan != vo_panscan_amount ) ) // || ( !vo_fs && vo_panscan_amount ) )
330        {
331 //        int old_y = vo_panscan_y;
332 	panscan_calc();
333 //        if ( old_y != vo_panscan_y )
334 	set_window();
335        }
336       return VO_TRUE;
337   case VOCTRL_UPDATE_SCREENINFO:
338 #ifdef VO_XMGA
339       update_xinerama_info();
340 #else
341       aspect_save_screenres(vo_screenwidth, vo_screenheight);
342 #endif
343       return VO_TRUE;
344   }
345   return VO_NOTIMPL;
346 }
347 
348 
mga_init(int width,int height,unsigned int format)349 static int mga_init(int width,int height,unsigned int format){
350 
351         uint32_t bespitch = FFALIGN(width, 32);
352         switch(format){
353         case IMGFMT_YV12:
354             width  = FFALIGN(width,  2);
355             height = FFALIGN(height, 2);
356             mga_vid_config.frame_size = bespitch * height + (bespitch * height) / 2;
357             mga_vid_config.format=MGA_VID_FORMAT_I420; break;
358         case IMGFMT_I420:
359         case IMGFMT_IYUV:
360             width  = FFALIGN(width,  2);
361             height = FFALIGN(height, 2);
362             mga_vid_config.frame_size = bespitch * height + (bespitch * height) / 2;
363             mga_vid_config.format=MGA_VID_FORMAT_YV12; break;
364         case IMGFMT_YUY2:
365             mga_vid_config.frame_size = bespitch * height * 2;
366             mga_vid_config.format=MGA_VID_FORMAT_YUY2; break;
367         case IMGFMT_UYVY:
368             mga_vid_config.frame_size = bespitch * height * 2;
369             mga_vid_config.format=MGA_VID_FORMAT_UYVY; break;
370         default:
371             mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_MGA_InvalidOutputFormat,format);
372             return -1;
373         }
374 
375 	mga_vid_config.src_width = width;
376 	mga_vid_config.src_height= height;
377 	if(!mga_vid_config.dest_width)
378 	    mga_vid_config.dest_width = width;
379 	if(!mga_vid_config.dest_height)
380 	    mga_vid_config.dest_height= height;
381 
382 	mga_vid_config.colkey_on=0;
383 
384 	mga_vid_config.num_frames=(vo_directrendering && !vo_doublebuffering)?1:3;
385 	mga_vid_config.version=MGA_VID_VERSION;
386 
387 	if(width > 1024 && height > 1024)
388 	{
389 		mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_MGA_ResolutionTooHigh);
390 		return -1;
391 	} else if(height <= 1024)
392 	{
393 		// try whether we have a G550
394 		int ret;
395 		if ((ret = ioctl(f,MGA_VID_CONFIG,&mga_vid_config)))
396 		{
397 			if(mga_vid_config.card_type != MGA_G550)
398 			{
399 				// we don't have a G550, so our resolution is too high
400 				mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_MGA_ResolutionTooHigh);
401 				return -1;
402 			} else {
403 				// there is a deeper problem
404 				// we have a G550, but still couldn't configure mga_vid
405 				perror("Error in mga_vid_config ioctl()");
406 				mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_MGA_IncompatibleDriverVersion);
407 				return -1;
408 			}
409 			// if we arrived here, then we could successfully configure mga_vid
410 			// at this high resolution
411 		}
412 	} else {
413 		// configure mga_vid in case resolution is < 1024x1024 too
414 		if (ioctl(f,MGA_VID_CONFIG,&mga_vid_config))
415 		{
416 			perror("Error in mga_vid_config ioctl()");
417 			mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_MGA_IncompatibleDriverVersion);
418 			return -1;
419 		}
420 	}
421 	if (mga_vid_config.card_type == MGA_G200) {
422 		sws_ctx = sws_getContext(width, height, AV_PIX_FMT_YUV420P,
423 		                         width, height, AV_PIX_FMT_NV12,
424 		                         SWS_BILINEAR, NULL, NULL, NULL);
425 		if (!sws_ctx) {
426 			mp_msg(MSGT_VO, MSGL_FATAL,
427 			       "Could not get swscale context to scale for G200.\n");
428 			return -1;
429 		}
430 		mp_msg(MSGT_VO, MSGL_WARN, "G200 cards support is untested. "
431 		                           "Please report whether it works.\n");
432 	}
433 
434 	mp_msg(MSGT_VO,MSGL_V,"[MGA] Using %d buffers.\n",mga_vid_config.num_frames);
435 
436 	frames[0] = mmap(0,mga_vid_config.frame_size*mga_vid_config.num_frames,PROT_WRITE,MAP_SHARED,f,0);
437 	frames[1] = frames[0] + 1*mga_vid_config.frame_size;
438 	frames[2] = frames[0] + 2*mga_vid_config.frame_size;
439 	frames[3] = frames[0] + 3*mga_vid_config.frame_size;
440 	mga_next_frame = 0;
441 	vid_data = frames[mga_next_frame];
442 
443 	//clear the buffer
444 	memset(frames[0],0x80,mga_vid_config.frame_size*mga_vid_config.num_frames);
445 
446 #ifndef VO_XMGA
447 	ioctl(f,MGA_VID_ON,0);
448 #endif
449 
450   return 0;
451 }
452 
mga_uninit(void)453 static int mga_uninit(void){
454   if(f>=0){
455 	ioctl( f,MGA_VID_OFF,0 );
456 	munmap(frames[0],mga_vid_config.frame_size*mga_vid_config.num_frames);
457 	close(f);
458 	f = -1;
459   }
460   if (sws_ctx) {
461 	sws_freeContext(sws_ctx);
462   }
463   return 0;
464 }
465 
preinit(const char * vo_subdevice)466 static int preinit(const char *vo_subdevice)
467 {
468 	uint32_t ver;
469   const char *devname=vo_subdevice?vo_subdevice:"/dev/mga_vid";
470 
471 	f = open(devname,O_RDWR);
472 	if(f == -1)
473 	{
474 		perror("open");
475 		mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_MGA_CouldntOpen,devname);
476 		return -1;
477 	}
478 
479 	// check whether the mga_vid driver has the same
480 	// version as we expect
481 
482 	if(ioctl(f,MGA_VID_GET_VERSION,&ver) == -1 || MGA_VID_VERSION != ver)
483 	{
484 		mp_msg(MSGT_VO, MSGL_ERR, MSGTR_LIBVO_MGA_mgavidVersionMismatch, ver, MGA_VID_VERSION);
485 		return -1;
486 	}
487 
488 #ifdef VO_XMGA
489   if (!vo_init()) {
490     close(f);
491     return -1;
492   }
493 #endif
494 
495   return 0;
496 }
497 
set_window(void)498 static void set_window( void ){
499 
500          drwcX = vo_dx;
501          drwcY = vo_dy;
502          drwWidth  = vo_dwidth;
503          drwHeight = vo_dheight;
504 
505          aspect(&drwWidth, &drwHeight, A_WINZOOM);
506          panscan_calc_windowed();
507          drwWidth  += vo_panscan_x;
508          drwHeight += vo_panscan_y;
509          drwWidth  = FFMIN(drwWidth, vo_screenwidth);
510          drwHeight = FFMIN(drwHeight, vo_screenheight);
511          drwX = (vo_dwidth  - drwWidth ) / 2;
512          drwY = (vo_dheight - drwHeight) / 2;
513          drwcX += drwX;
514          drwcY += drwY;
515 
516 #ifdef VO_XMGA
517 #ifdef CONFIG_XINERAMA
518 		 if(XineramaIsActive(mDisplay))
519 		 {
520 		 	XineramaScreenInfo *screens;
521 		 	int num_screens;
522 		 	int i;
523 
524 		 	screens = XineramaQueryScreens(mDisplay,&num_screens);
525 
526 		 	/* find the screen we are on */
527 		 	i = 0;
528 		 	while(i<num_screens &&
529 		 	    ((screens[i].x_org < drwcX) ||
530 		 	     (screens[i].y_org < drwcY) ||
531 		 	     (screens[i].x_org + screens[i].width >= drwcX) ||
532 		 	     (screens[i].y_org + screens[i].height >= drwcY)))
533 		 	{
534 		 		i++;
535 		 	}
536 
537 			if(i<num_screens)
538 			{
539 				/* save the screen we are on */
540 				xinerama_screen = i;
541 			} else {
542 				/* oops.. couldnt find the screen we are on
543 				 * because the upper left corner left the
544 				 * visual range. assume we are still on the
545 				 * same screen
546 				 */
547 				i = xinerama_screen;
548 		 	}
549 
550 			if(xinerama_screen == -1)
551 			{
552 				// The default value of the xinerama_screen is
553 				// still there. Which means we could never
554 				// figure out on which screen we are.
555 				// Choose the first screen as default
556 				xinerama_screen = i = 0;
557 			}
558 
559 		 	/* set drwcX and drwcY to the right values */
560 		 	drwcX = drwcX - screens[i].x_org;
561 		 	drwcY = drwcY - screens[i].y_org;
562 		 	XFree(screens);
563 		 }
564 
565 #endif
566 
567          mDrawColorKey();
568 #endif
569 
570          mga_vid_config.x_org=drwcX;
571          mga_vid_config.y_org=drwcY;
572          mga_vid_config.dest_width=drwWidth;
573          mga_vid_config.dest_height=drwHeight;
574 	 if ( ioctl( f,MGA_VID_CONFIG,&mga_vid_config ) ) mp_msg(MSGT_VO,MSGL_WARN,"Error in mga_vid_config ioctl (wrong mga_vid.o version?)" );
575 }
576