libvo/mga_template.c

   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 "libswscale/swscale.h"
  22 #include "libmpcodecs/vf_scale.h"
  23 #include "mp_msg.h"
  24 #include "old_vo_wrapper.h"
  25
  26 // mga_vid drawing functions
  27 static void set_window( void );         /* forward declaration to kill warnings */
  28 #ifdef VO_XMGA
  29 static void mDrawColorKey( void );      /* forward declaration to kill warnings */
  30 #endif
  31
  32 static int mga_next_frame=0;
  33
  34 static mga_vid_config_t mga_vid_config;
  35 static uint8_t *vid_data, *frames[4];
  36 static int f = -1;
  37
  38 static uint32_t               drwX,drwY,drwWidth,drwHeight;
  39 #ifdef VO_XMGA
  40 static uint32_t               drwBorderWidth,drwDepth;
  41 #endif
  42 static uint32_t               drwcX,drwcY,dwidth,dheight;
  43
  44 static void draw_alpha(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
  45     uint32_t bespitch = (mga_vid_config.src_width + 31) & ~31;
  46     x0+=mga_vid_config.src_width*(vo_panscan_x>>1)/(vo_dwidth+vo_panscan_x);
  47     switch(mga_vid_config.format){
  48     case MGA_VID_FORMAT_YV12:
  49     case MGA_VID_FORMAT_IYUV:
  50     case MGA_VID_FORMAT_I420:
  51         vo_draw_alpha_yv12(w,h,src,srca,stride,vid_data+bespitch*y0+x0,bespitch);
  52         break;
  53     case MGA_VID_FORMAT_YUY2:
  54         vo_draw_alpha_yuy2(w,h,src,srca,stride,vid_data+2*(bespitch*y0+x0),2*bespitch);
  55         break;
  56     case MGA_VID_FORMAT_UYVY:
  57         vo_draw_alpha_yuy2(w,h,src,srca,stride,vid_data+2*(bespitch*y0+x0)+1,2*bespitch);
  58         break;
  59     }
  60 }
  61
  62 static void draw_osd(void)
  63 {
  64 //    vo_draw_text(mga_vid_config.src_width,mga_vid_config.src_height,draw_alpha);
  65     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);
  66 }
  67
  68
  69 #if 0 // Should use libswscale's interface to NV12
  70 static void
  71 draw_slice_g200(uint8_t *image[], int stride[], int width,int height,int x,int y)
  72 {
  73         uint8_t *dest;
  74         uint32_t bespitch = (mga_vid_config.src_width + 31) & ~31;
  75
  76         dest = vid_data + bespitch*y + x;
  77         mem2agpcpy_pic(dest, image[0], width, height, bespitch, stride[0]);
  78
  79         width/=2;height/=2;x/=2;y/=2;
  80
  81         dest = vid_data + bespitch*mga_vid_config.src_height + bespitch*y + 2*x;
  82
  83         interleaveBytes(image[1],image[2],dest,
  84                 width, height,
  85                 stride[1], stride[2], bespitch);
  86 }
  87 #endif
  88
  89 static void
  90 draw_slice_g400(uint8_t *image[], int stride[], int w,int h,int x,int y)
  91 {
  92     uint8_t *dest;
  93     uint8_t *dest2;
  94     uint32_t bespitch,bespitch2;
  95
  96     bespitch = (mga_vid_config.src_width + 31) & ~31;
  97     bespitch2 = bespitch/2;
  98
  99     dest = vid_data + bespitch * y + x;
 100     mem2agpcpy_pic(dest, image[0], w, h, bespitch, stride[0]);
 101
 102     w/=2;h/=2;x/=2;y/=2;
 103
 104     dest = vid_data + bespitch*mga_vid_config.src_height + bespitch2 * y + x;
 105     dest2= dest + bespitch2*mga_vid_config.src_height / 2;
 106
 107   if(mga_vid_config.format==MGA_VID_FORMAT_YV12){
 108     // mga_vid's YV12 assumes Y,U,V order (insteda of Y,V,U) :(
 109     mem2agpcpy_pic(dest, image[1], w, h, bespitch2, stride[1]);
 110     mem2agpcpy_pic(dest2,image[2], w, h, bespitch2, stride[2]);
 111   } else {
 112     mem2agpcpy_pic(dest, image[2], w, h, bespitch2, stride[2]);
 113     mem2agpcpy_pic(dest2,image[1], w, h, bespitch2, stride[1]);
 114   }
 115
 116 }
 117
 118 static int
 119 draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
 120 {
 121
 122 #if 0
 123         printf("vo: %p/%d %p/%d %p/%d  %dx%d/%d;%d  \n",
 124             src[0],stride[0],
 125             src[1],stride[1],
 126             src[2],stride[2],
 127             w,h,x,y);
 128 #endif
 129
 130 #if 0
 131         if (mga_vid_config.card_type == MGA_G200)
 132             draw_slice_g200(src,stride,w,h,x,y);
 133         else
 134 #endif
 135             draw_slice_g400(src,stride,w,h,x,y);
 136         return 0;
 137 }
 138
 139 static void
 140 vo_mga_flip_page(void)
 141 {
 142
 143 //    printf("-- flip to %d --\n",mga_next_frame);
 144
 145         ioctl(f,MGA_VID_FSEL,&mga_next_frame);
 146         mga_next_frame=(mga_next_frame+1)%mga_vid_config.num_frames;
 147         vid_data=frames[mga_next_frame];
 148
 149 }
 150
 151 static int
 152 draw_frame(uint8_t *src[])
 153 {
 154     mp_msg(MSGT_VO,MSGL_WARN,"!!! mga::draw_frame() called !!!\n");
 155     return 0;
 156 }
 157
 158 static uint32_t get_image(mp_image_t *mpi){
 159     uint32_t bespitch = (mga_vid_config.src_width + 31) & ~31;
 160     uint32_t bespitch2 = bespitch/2;
 161 //    printf("mga: get_image() called\n");
 162     if(mpi->type==MP_IMGTYPE_STATIC && mga_vid_config.num_frames>1) return VO_FALSE; // it is not static
 163     if(mpi->flags&MP_IMGFLAG_READABLE) return VO_FALSE; // slow video ram
 164     if(mga_vid_config.card_type == MGA_G200 && mpi->flags&MP_IMGFLAG_PLANAR) return VO_FALSE;
 165 //    printf("width=%d vs. bespitch=%d, flags=0x%X  \n",mpi->width,bespitch,mpi->flags);
 166     if((mpi->width==bespitch) ||
 167        (mpi->flags&(MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_ACCEPT_WIDTH))){
 168        // we're lucky or codec accepts stride => ok, let's go!
 169        if(mpi->flags&MP_IMGFLAG_PLANAR){
 170            mpi->planes[0]=vid_data;
 171            if(mpi->flags&MP_IMGFLAG_SWAPPED){
 172                mpi->planes[1]=vid_data + bespitch*mga_vid_config.src_height;
 173                mpi->planes[2]=mpi->planes[1] + bespitch2*mga_vid_config.src_height/2;
 174            } else {
 175                mpi->planes[2]=vid_data + bespitch*mga_vid_config.src_height;
 176                mpi->planes[1]=mpi->planes[2] + bespitch2*mga_vid_config.src_height/2;
 177            }
 178            mpi->width=mpi->stride[0]=bespitch;
 179            mpi->stride[1]=mpi->stride[2]=bespitch2;
 180        } else {
 181            mpi->planes[0]=vid_data;
 182            mpi->width=bespitch;
 183            mpi->stride[0]=mpi->width*(mpi->bpp/8);
 184        }
 185        mpi->flags|=MP_IMGFLAG_DIRECT;
 186 //      printf("mga: get_image() SUCCESS -> Direct Rendering ENABLED\n");
 187        return VO_TRUE;
 188     }
 189     return VO_FALSE;
 190 }
 191
 192 static uint32_t
 193 draw_image(mp_image_t *mpi){
 194     uint32_t bespitch = (mga_vid_config.src_width + 31) & ~31;
 195
 196     // if -dr or -slices then do nothing:
 197     if(mpi->flags&(MP_IMGFLAG_DIRECT|MP_IMGFLAG_DRAW_CALLBACK)) return VO_TRUE;
 198
 199     if(mpi->flags&MP_IMGFLAG_PLANAR){
 200         // copy planar:
 201         draw_slice(mpi->planes,mpi->stride,mpi->w,mpi->h,mpi->x,mpi->y);
 202     } else {
 203         // copy packed:
 204         mem2agpcpy_pic(vid_data, mpi->planes[0],        // dst,src
 205                     mpi->w*(mpi->bpp/8), mpi->h,        // w,h
 206                     bespitch*2, mpi->stride[0]);        // dstride,sstride
 207     }
 208     return VO_TRUE;
 209 }
 210
 211 static int
 212 query_format(uint32_t format)
 213 {
 214     switch(format){
 215     case IMGFMT_YV12:
 216     case IMGFMT_I420:
 217     case IMGFMT_IYUV:
 218     case IMGFMT_YUY2:
 219     case IMGFMT_UYVY:
 220         return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD|VFCAP_HWSCALE_UP|VFCAP_HWSCALE_DOWN|VFCAP_ACCEPT_STRIDE;
 221     }
 222     return 0;
 223 }
 224
 225 #ifndef VO_XMGA
 226 static void mga_fullscreen(void)
 227 {
 228         uint32_t w,h;
 229         if ( !vo_fs ) {
 230                 vo_fs=VO_TRUE;
 231                 w=vo_screenwidth; h=vo_screenheight;
 232                 aspect(&w,&h,A_ZOOM);
 233         } else {
 234                 vo_fs=VO_FALSE;
 235                 w=vo_dwidth; h=vo_dheight;
 236                 aspect(&w,&h,A_NOZOOM);
 237         }
 238         mga_vid_config.dest_width = w;
 239         mga_vid_config.dest_height= h;
 240         mga_vid_config.x_org=(vo_screenwidth-w)/2;
 241         mga_vid_config.y_org=(vo_screenheight-h)/2;
 242         if ( ioctl( f,MGA_VID_CONFIG,&mga_vid_config ) )
 243                 mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] error in mga_vid_config ioctl (wrong mga_vid.o version?)" );
 244 }
 245 #endif
 246
 247 static int control(uint32_t request, void *data)
 248 {
 249   switch (request) {
 250   case VOCTRL_QUERY_FORMAT:
 251     return query_format(*((uint32_t*)data));
 252   case VOCTRL_GET_IMAGE:
 253     return get_image(data);
 254   case VOCTRL_DRAW_IMAGE:
 255     return draw_image(data);
 256   case VOCTRL_SET_EQUALIZER:
 257     {
 258      short value;
 259      uint32_t luma,prev;
 260      struct voctrl_set_equalizer_args *args = data;
 261
 262      if (strcmp(args->name, "brightness") && strcmp(args->name, "contrast"))
 263         return VO_FALSE;
 264
 265      if (ioctl(f,MGA_VID_GET_LUMA,&prev)) {
 266         perror("Error in mga_vid_config ioctl()");
 267     mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Could not get luma values from the kernel module!\n");
 268         return VO_FALSE;
 269      }
 270
 271 //     printf("GET: 0x%4X 0x%4X  \n",(prev>>16),(prev&0xffff));
 272
 273      value = args->value;
 274
 275 //     printf("value: %d -> ",value);
 276      value=((value+100)*255)/200-128; // maps -100=>-128 and +100=>127
 277 //     printf("%d  \n",value);
 278
 279      if (!strcmp(args->name, "contrast"))
 280          luma = (prev&0xFFFF0000)|(value&0xFFFF);
 281      else
 282          luma = (prev&0xFFFF)|(value<<16);
 283
 284      if (ioctl(f,MGA_VID_SET_LUMA,luma)) {
 285         perror("Error in mga_vid_config ioctl()");
 286         mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Could not set luma values from the kernel module!\n");
 287         return VO_FALSE;
 288      }
 289
 290      return VO_TRUE;
 291     }
 292
 293   case VOCTRL_GET_EQUALIZER:
 294     {
 295      short val;
 296      uint32_t luma;
 297      struct voctrl_get_equalizer_args *args = data;
 298
 299      if (strcmp(args->name, "brightness") && strcmp(args->name, "contrast"))
 300         return VO_FALSE;
 301
 302      if (ioctl(f,MGA_VID_GET_LUMA,&luma)) {
 303         perror("Error in mga_vid_config ioctl()");
 304         mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Could not get luma values from the kernel module!\n");
 305         return VO_FALSE;
 306      }
 307
 308      if (!strcmp(args->name, "contrast"))
 309          val=(luma & 0xFFFF);
 310      else
 311          val=(luma >> 16);
 312
 313      *args->valueptr = (val*200)/255;
 314
 315      return VO_TRUE;
 316     }
 317
 318 #ifndef VO_XMGA
 319   case VOCTRL_FULLSCREEN:
 320     if (vo_screenwidth && vo_screenheight)
 321         mga_fullscreen();
 322     else
 323         mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Screen width/height unknown!\n");
 324     return VO_TRUE;
 325   case VOCTRL_GET_PANSCAN:
 326       if ( !vo_fs ) return VO_FALSE;
 327       return VO_TRUE;
 328 #endif
 329
 330 #ifdef VO_XMGA
 331   case VOCTRL_ONTOP:
 332       vo_x11_ontop();
 333       return VO_TRUE;
 334   case VOCTRL_GET_PANSCAN:
 335       if ( !initialized || !vo_fs ) return VO_FALSE;
 336       return VO_TRUE;
 337   case VOCTRL_FULLSCREEN:
 338       vo_x11_fullscreen();
 339       vo_panscan_amount=0;
 340     /* indended, fallthrough to update panscan on fullscreen/windowed switch */
 341 #endif
 342   case VOCTRL_SET_PANSCAN:
 343       if ( vo_fs && ( vo_panscan != vo_panscan_amount ) ) // || ( !vo_fs && vo_panscan_amount ) )
 344        {
 345 //        int old_y = vo_panscan_y;
 346         panscan_calc();
 347 //        if ( old_y != vo_panscan_y )
 348         set_window();
 349        }
 350       return VO_TRUE;
 351   }
 352   return VO_NOTIMPL;
 353 }
 354
 355
 356 static int mga_init(int width,int height,unsigned int format){
 357
 358         switch(format){
 359         case IMGFMT_YV12:
 360             width+=width&1;height+=height&1;
 361             mga_vid_config.frame_size = ((width + 31) & ~31) * height + (((width + 31) & ~31) * height) / 2;
 362             mga_vid_config.format=MGA_VID_FORMAT_I420; break;
 363         case IMGFMT_I420:
 364         case IMGFMT_IYUV:
 365             width+=width&1;height+=height&1;
 366             mga_vid_config.frame_size = ((width + 31) & ~31) * height + (((width + 31) & ~31) * height) / 2;
 367             mga_vid_config.format=MGA_VID_FORMAT_YV12; break;
 368         case IMGFMT_YUY2:
 369             mga_vid_config.frame_size = ((width + 31) & ~31) * height * 2;
 370             mga_vid_config.format=MGA_VID_FORMAT_YUY2; break;
 371         case IMGFMT_UYVY:
 372             mga_vid_config.frame_size = ((width + 31) & ~31) * height * 2;
 373             mga_vid_config.format=MGA_VID_FORMAT_UYVY; break;
 374         default:
 375             mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] invalid output format %0X\n",format);
 376             return -1;
 377         }
 378
 379         mga_vid_config.src_width = width;
 380         mga_vid_config.src_height= height;
 381         if(!mga_vid_config.dest_width)
 382             mga_vid_config.dest_width = width;
 383         if(!mga_vid_config.dest_height)
 384             mga_vid_config.dest_height= height;
 385
 386         mga_vid_config.colkey_on=0;
 387
 388         mga_vid_config.num_frames=(vo_directrendering && !vo_doublebuffering)?1:3;
 389         mga_vid_config.version=MGA_VID_VERSION;
 390
 391         if(width > 1024 && height > 1024)
 392         {
 393                 mp_tmsg(MSGT_VO,MSGL_ERR, "[MGA] Source resolution exceeds 1023x1023 in at least one dimension.\n[MGA] Rescale in software or use -lavdopts lowres=1.\n");
 394                 return -1;
 395         } else if(height <= 1024)
 396         {
 397                 // try whether we have a G550
 398                 int ret;
 399                 if ((ret = ioctl(f,MGA_VID_CONFIG,&mga_vid_config)))
 400                 {
 401                         if(mga_vid_config.card_type != MGA_G550)
 402                         {
 403                                 // we don't have a G550, so our resolution is too high
 404                                 mp_tmsg(MSGT_VO,MSGL_ERR, "[MGA] Source resolution exceeds 1023x1023 in at least one dimension.\n[MGA] Rescale in software or use -lavdopts lowres=1.\n");
 405                                 return -1;
 406                         } else {
 407                                 // there is a deeper problem
 408                                 // we have a G550, but still couldn't configure mga_vid
 409                                 perror("Error in mga_vid_config ioctl()");
 410                                 mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Your mga_vid driver version is incompatible with this MPlayer version!\n");
 411                                 return -1;
 412                         }
 413                         // if we arrived here, then we could successfully configure mga_vid
 414                         // at this high resolution
 415                 }
 416         } else {
 417                 // configure mga_vid in case resolution is < 1024x1024 too
 418                 if (ioctl(f,MGA_VID_CONFIG,&mga_vid_config))
 419                 {
 420                         perror("Error in mga_vid_config ioctl()");
 421                         mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Your mga_vid driver version is incompatible with this MPlayer version!\n");
 422                         return -1;
 423                 }
 424         }
 425         if (mga_vid_config.card_type == MGA_G200) {
 426                 mp_msg(MSGT_VO, MSGL_FATAL, "G200 cards support is currently broken. patches welcome.\n");
 427                 return -1;
 428         }
 429
 430         mp_msg(MSGT_VO,MSGL_V,"[MGA] Using %d buffers.\n",mga_vid_config.num_frames);
 431
 432         frames[0] = (char*)mmap(0,mga_vid_config.frame_size*mga_vid_config.num_frames,PROT_WRITE,MAP_SHARED,f,0);
 433         frames[1] = frames[0] + 1*mga_vid_config.frame_size;
 434         frames[2] = frames[0] + 2*mga_vid_config.frame_size;
 435         frames[3] = frames[0] + 3*mga_vid_config.frame_size;
 436         mga_next_frame = 0;
 437         vid_data = frames[mga_next_frame];
 438
 439         //clear the buffer
 440         memset(frames[0],0x80,mga_vid_config.frame_size*mga_vid_config.num_frames);
 441
 442 #ifndef VO_XMGA
 443         ioctl(f,MGA_VID_ON,0);
 444 #endif
 445
 446   return 0;
 447 }
 448
 449 static int mga_uninit(void){
 450   if(f>=0){
 451         ioctl( f,MGA_VID_OFF,0 );
 452         munmap(frames[0],mga_vid_config.frame_size*mga_vid_config.num_frames);
 453         close(f);
 454         f = -1;
 455   }
 456   return 0;
 457 }
 458
 459 static int preinit(const char *vo_subdevice)
 460 {
 461         uint32_t ver;
 462   const char *devname=vo_subdevice?vo_subdevice:"/dev/mga_vid";
 463
 464         f = open(devname,O_RDWR);
 465         if(f == -1)
 466         {
 467                 perror("open");
 468                 mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Couldn't open: %s\n",devname);
 469                 return -1;
 470         }
 471
 472         // check whether the mga_vid driver has the same
 473         // version as we expect
 474
 475         ioctl(f,MGA_VID_GET_VERSION,&ver);
 476         if(MGA_VID_VERSION != ver)
 477         {
 478                 mp_tmsg(MSGT_VO, MSGL_ERR, "[MGA] mismatch between kernel (%u) and MPlayer (%u) mga_vid driver versions\n", ver, MGA_VID_VERSION);
 479                 return -1;
 480         }
 481
 482 #ifdef VO_XMGA
 483   if (!vo_init()) {
 484     close(f);
 485     return -1;
 486   }
 487 #endif
 488
 489   return 0;
 490 }
 491
 492 static void set_window( void ){
 493
 494 #ifdef VO_XMGA
 495          if ( WinID )
 496           {
 497            XGetGeometry( mDisplay,vo_window,&mRoot,&drwX,&drwY,&drwWidth,&drwHeight,&drwBorderWidth,&drwDepth );
 498            mp_msg(MSGT_VO,MSGL_V,"[xmga] x: %d y: %d w: %d h: %d\n",drwX,drwY,drwWidth,drwHeight );
 499            drwX=0; drwY=0;
 500            XTranslateCoordinates( mDisplay,vo_window,mRoot,0,0,&drwcX,&drwcY,&mRoot );
 501            mp_msg(MSGT_VO,MSGL_V,"[xmga] dcx: %d dcy: %d dx: %d dy: %d dw: %d dh: %d\n",drwcX,drwcY,drwX,drwY,drwWidth,drwHeight );
 502
 503           }
 504           else
 505 #endif
 506           { drwX=drwcX=vo_dx; drwY=drwcY=vo_dy; drwWidth=vo_dwidth; drwHeight=vo_dheight; }
 507
 508          aspect(&dwidth,&dheight,A_NOZOOM);
 509          if ( vo_fs )
 510           {
 511            aspect(&dwidth,&dheight,A_ZOOM);
 512            drwX=( vo_screenwidth - (dwidth > vo_screenwidth?vo_screenwidth:dwidth) ) / 2;
 513            drwcX+=drwX;
 514            drwY=( vo_screenheight - (dheight > vo_screenheight?vo_screenheight:dheight) ) / 2;
 515            drwcY+=drwY;
 516            drwWidth=(dwidth > vo_screenwidth?vo_screenwidth:dwidth);
 517            drwHeight=(dheight > vo_screenheight?vo_screenheight:dheight);
 518            mp_msg(MSGT_VO,MSGL_V,"[xmga-fs] dcx: %d dcy: %d dx: %d dy: %d dw: %d dh: %d\n",drwcX,drwcY,drwX,drwY,drwWidth,drwHeight );
 519           }
 520          vo_dwidth=drwWidth; vo_dheight=drwHeight;
 521
 522 #ifdef VO_XMGA
 523 #ifdef CONFIG_XINERAMA
 524                  if(XineramaIsActive(mDisplay))
 525                  {
 526                         XineramaScreenInfo *screens;
 527                         int num_screens;
 528                         int i;
 529
 530                         screens = XineramaQueryScreens(mDisplay,&num_screens);
 531
 532                         /* find the screen we are on */
 533                         i = 0;
 534                         while(i<num_screens &&
 535                             ((screens[i].x_org < drwcX) ||
 536                              (screens[i].y_org < drwcY) ||
 537                              (screens[i].x_org + screens[i].width >= drwcX) ||
 538                              (screens[i].y_org + screens[i].height >= drwcY)))
 539                         {
 540                                 i++;
 541                         }
 542
 543                         if(i<num_screens)
 544                         {
 545                                 /* save the screen we are on */
 546                                 xinerama_screen = i;
 547                         } else {
 548                                 /* oops.. couldnt find the screen we are on
 549                                  * because the upper left corner left the
 550                                  * visual range. assume we are still on the
 551                                  * same screen
 552                                  */
 553                                 i = xinerama_screen;
 554                         }
 555
 556                         if(xinerama_screen == -1)
 557                         {
 558                                 // The default value of the xinerama_screen is
 559                                 // still there. Which means we could never
 560                                 // figure out on which screen we are.
 561                                 // Choose the first screen as default
 562                                 xinerama_screen = i = 0;
 563                         }
 564
 565                         /* set drwcX and drwcY to the right values */
 566                         drwcX = drwcX - screens[i].x_org;
 567                         drwcY = drwcY - screens[i].y_org;
 568                         XFree(screens);
 569                  }
 570
 571 #endif
 572
 573          mDrawColorKey();
 574 #endif
 575
 576          mga_vid_config.x_org=drwcX;
 577          mga_vid_config.y_org=drwcY;
 578          mga_vid_config.dest_width=drwWidth;
 579          mga_vid_config.dest_height=drwHeight;
 580          if ( vo_panscan > 0.0f && vo_fs )
 581           {
 582            drwX-=vo_panscan_x>>1;
 583            drwY-=vo_panscan_y>>1;
 584            drwWidth+=vo_panscan_x;
 585            drwHeight+=vo_panscan_y;
 586
 587            mga_vid_config.x_org-=vo_panscan_x>>1;
 588            mga_vid_config.y_org-=vo_panscan_y>>1;
 589            mga_vid_config.dest_width=drwWidth;
 590            mga_vid_config.dest_height=drwHeight;
 591 #ifdef VO_XMGA
 592            mDrawColorKey();
 593 #endif
 594           }
 595          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?)" );
 596 }