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 "libavcore/imgutils.h"
  23 #include "libmpcodecs/vf_scale.h"
  24 #include "mp_msg.h"
  25 #include "old_vo_wrapper.h"
  26
  27 // mga_vid drawing functions
  28 static void set_window( void );         /* forward declaration to kill warnings */
  29 #ifdef VO_XMGA
  30 static void mDrawColorKey( void );      /* forward declaration to kill warnings */
  31 #endif
  32
  33 static int mga_next_frame=0;
  34
  35 static mga_vid_config_t mga_vid_config;
  36 static uint8_t *vid_data, *frames[4];
  37 static int f = -1;
  38
  39 static uint32_t               drwX,drwY,drwWidth,drwHeight;
  40 #ifdef VO_XMGA
  41 static uint32_t               drwBorderWidth,drwDepth;
  42 #endif
  43 static uint32_t               drwcX,drwcY,dwidth,dheight;
  44
  45 static struct SwsContext *sws_ctx;
  46
  47 static void draw_alpha(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
  48     uint32_t bespitch = (mga_vid_config.src_width + 31) & ~31;
  49     x0+=mga_vid_config.src_width*(vo_panscan_x>>1)/(vo_dwidth+vo_panscan_x);
  50     switch(mga_vid_config.format){
  51     case MGA_VID_FORMAT_YV12:
  52     case MGA_VID_FORMAT_IYUV:
  53     case MGA_VID_FORMAT_I420:
  54         vo_draw_alpha_yv12(w,h,src,srca,stride,vid_data+bespitch*y0+x0,bespitch);
  55         break;
  56     case MGA_VID_FORMAT_YUY2:
  57         vo_draw_alpha_yuy2(w,h,src,srca,stride,vid_data+2*(bespitch*y0+x0),2*bespitch);
  58         break;
  59     case MGA_VID_FORMAT_UYVY:
  60         vo_draw_alpha_yuy2(w,h,src,srca,stride,vid_data+2*(bespitch*y0+x0)+1,2*bespitch);
  61         break;
  62     }
  63 }
  64
  65 static void draw_osd(void)
  66 {
  67 //    vo_draw_text(mga_vid_config.src_width,mga_vid_config.src_height,draw_alpha);
  68     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);
  69 }
  70
  71
  72 static void
  73 draw_slice_g200(uint8_t *image[], int stride[], int width,int height,int x,int y)
  74 {
  75         uint32_t bespitch = (mga_vid_config.src_width + 31) & ~31;
  76         int dst_stride[4] = { bespitch, bespitch };
  77         uint8_t *dst[4];
  78
  79         av_image_fill_pointers(dst, PIX_FMT_NV12, mga_vid_config.src_height,
  80                                vid_data, dst_stride);
  81
  82         sws_scale(sws_ctx, image, stride, y, height, dst, dst_stride);
  83 }
  84
  85 static void
  86 draw_slice_g400(uint8_t *image[], int stride[], int w,int h,int x,int y)
  87 {
  88     uint8_t *dest;
  89     uint8_t *dest2;
  90     uint32_t bespitch,bespitch2;
  91
  92     bespitch = (mga_vid_config.src_width + 31) & ~31;
  93     bespitch2 = bespitch/2;
  94
  95     dest = vid_data + bespitch * y + x;
  96     mem2agpcpy_pic(dest, image[0], w, h, bespitch, stride[0]);
  97
  98     w/=2;h/=2;x/=2;y/=2;
  99
 100     dest = vid_data + bespitch*mga_vid_config.src_height + bespitch2 * y + x;
 101     dest2= dest + bespitch2*mga_vid_config.src_height / 2;
 102
 103   if(mga_vid_config.format==MGA_VID_FORMAT_YV12){
 104     // mga_vid's YV12 assumes Y,U,V order (insteda of Y,V,U) :(
 105     mem2agpcpy_pic(dest, image[1], w, h, bespitch2, stride[1]);
 106     mem2agpcpy_pic(dest2,image[2], w, h, bespitch2, stride[2]);
 107   } else {
 108     mem2agpcpy_pic(dest, image[2], w, h, bespitch2, stride[2]);
 109     mem2agpcpy_pic(dest2,image[1], w, h, bespitch2, stride[1]);
 110   }
 111
 112 }
 113
 114 static int
 115 draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
 116 {
 117
 118 #if 0
 119         printf("vo: %p/%d %p/%d %p/%d  %dx%d/%d;%d  \n",
 120             src[0],stride[0],
 121             src[1],stride[1],
 122             src[2],stride[2],
 123             w,h,x,y);
 124 #endif
 125
 126         if (mga_vid_config.card_type == MGA_G200)
 127             draw_slice_g200(src,stride,w,h,x,y);
 128         else
 129             draw_slice_g400(src,stride,w,h,x,y);
 130         return 0;
 131 }
 132
 133 static void
 134 vo_mga_flip_page(void)
 135 {
 136
 137 //    printf("-- flip to %d --\n",mga_next_frame);
 138
 139         ioctl(f,MGA_VID_FSEL,&mga_next_frame);
 140         mga_next_frame=(mga_next_frame+1)%mga_vid_config.num_frames;
 141         vid_data=frames[mga_next_frame];
 142
 143 }
 144
 145 static int
 146 draw_frame(uint8_t *src[])
 147 {
 148     mp_msg(MSGT_VO,MSGL_WARN,"!!! mga::draw_frame() called !!!\n");
 149     return 0;
 150 }
 151
 152 static uint32_t get_image(mp_image_t *mpi){
 153     uint32_t bespitch = (mga_vid_config.src_width + 31) & ~31;
 154     uint32_t bespitch2 = bespitch/2;
 155 //    printf("mga: get_image() called\n");
 156     if(mpi->type==MP_IMGTYPE_STATIC && mga_vid_config.num_frames>1) return VO_FALSE; // it is not static
 157     if(mpi->flags&MP_IMGFLAG_READABLE) return VO_FALSE; // slow video ram
 158     if(mga_vid_config.card_type == MGA_G200 && mpi->flags&MP_IMGFLAG_PLANAR) return VO_FALSE;
 159 //    printf("width=%d vs. bespitch=%d, flags=0x%X  \n",mpi->width,bespitch,mpi->flags);
 160     if((mpi->width==bespitch) ||
 161        (mpi->flags&(MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_ACCEPT_WIDTH))){
 162        // we're lucky or codec accepts stride => ok, let's go!
 163        if(mpi->flags&MP_IMGFLAG_PLANAR){
 164            mpi->planes[0]=vid_data;
 165            if(mpi->flags&MP_IMGFLAG_SWAPPED){
 166                mpi->planes[1]=vid_data + bespitch*mga_vid_config.src_height;
 167                mpi->planes[2]=mpi->planes[1] + bespitch2*mga_vid_config.src_height/2;
 168            } else {
 169                mpi->planes[2]=vid_data + bespitch*mga_vid_config.src_height;
 170                mpi->planes[1]=mpi->planes[2] + bespitch2*mga_vid_config.src_height/2;
 171            }
 172            mpi->width=mpi->stride[0]=bespitch;
 173            mpi->stride[1]=mpi->stride[2]=bespitch2;
 174        } else {
 175            mpi->planes[0]=vid_data;
 176            mpi->width=bespitch;
 177            mpi->stride[0]=mpi->width*(mpi->bpp/8);
 178        }
 179        mpi->flags|=MP_IMGFLAG_DIRECT;
 180 //      printf("mga: get_image() SUCCESS -> Direct Rendering ENABLED\n");
 181        return VO_TRUE;
 182     }
 183     return VO_FALSE;
 184 }
 185
 186 static uint32_t
 187 draw_image(mp_image_t *mpi){
 188     uint32_t bespitch = (mga_vid_config.src_width + 31) & ~31;
 189
 190     // if -dr or -slices then do nothing:
 191     if(mpi->flags&(MP_IMGFLAG_DIRECT|MP_IMGFLAG_DRAW_CALLBACK)) return VO_TRUE;
 192
 193     if(mpi->flags&MP_IMGFLAG_PLANAR){
 194         // copy planar:
 195         draw_slice(mpi->planes,mpi->stride,mpi->w,mpi->h,mpi->x,mpi->y);
 196     } else {
 197         // copy packed:
 198         mem2agpcpy_pic(vid_data, mpi->planes[0],        // dst,src
 199                     mpi->w*(mpi->bpp/8), mpi->h,        // w,h
 200                     bespitch*2, mpi->stride[0]);        // dstride,sstride
 201     }
 202     return VO_TRUE;
 203 }
 204
 205 static int
 206 query_format(uint32_t format)
 207 {
 208     switch(format){
 209     case IMGFMT_YV12:
 210     case IMGFMT_I420:
 211     case IMGFMT_IYUV:
 212     case IMGFMT_YUY2:
 213     case IMGFMT_UYVY:
 214         return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD|VFCAP_HWSCALE_UP|VFCAP_HWSCALE_DOWN|VFCAP_ACCEPT_STRIDE;
 215     }
 216     return 0;
 217 }
 218
 219 #ifndef VO_XMGA
 220 static void mga_fullscreen(void)
 221 {
 222         uint32_t w,h;
 223         if ( !vo_fs ) {
 224                 vo_fs=VO_TRUE;
 225                 w=vo_screenwidth; h=vo_screenheight;
 226                 aspect(&w,&h,A_ZOOM);
 227         } else {
 228                 vo_fs=VO_FALSE;
 229                 w=vo_dwidth; h=vo_dheight;
 230                 aspect(&w,&h,A_NOZOOM);
 231         }
 232         mga_vid_config.dest_width = w;
 233         mga_vid_config.dest_height= h;
 234         mga_vid_config.x_org=(vo_screenwidth-w)/2;
 235         mga_vid_config.y_org=(vo_screenheight-h)/2;
 236         if ( ioctl( f,MGA_VID_CONFIG,&mga_vid_config ) )
 237                 mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] error in mga_vid_config ioctl (wrong mga_vid.o version?)" );
 238 }
 239 #endif
 240
 241 static int control(uint32_t request, void *data)
 242 {
 243   switch (request) {
 244   case VOCTRL_QUERY_FORMAT:
 245     return query_format(*((uint32_t*)data));
 246   case VOCTRL_GET_IMAGE:
 247     return get_image(data);
 248   case VOCTRL_DRAW_IMAGE:
 249     return draw_image(data);
 250   case VOCTRL_SET_EQUALIZER:
 251     {
 252      short value;
 253      uint32_t luma,prev;
 254      struct voctrl_set_equalizer_args *args = data;
 255
 256      if (strcmp(args->name, "brightness") && strcmp(args->name, "contrast"))
 257         return VO_FALSE;
 258
 259      if (ioctl(f,MGA_VID_GET_LUMA,&prev)) {
 260         perror("Error in mga_vid_config ioctl()");
 261     mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Could not get luma values from the kernel module!\n");
 262         return VO_FALSE;
 263      }
 264
 265 //     printf("GET: 0x%4X 0x%4X  \n",(prev>>16),(prev&0xffff));
 266
 267      value = args->value;
 268
 269 //     printf("value: %d -> ",value);
 270      value=((value+100)*255)/200-128; // maps -100=>-128 and +100=>127
 271 //     printf("%d  \n",value);
 272
 273      if (!strcmp(args->name, "contrast"))
 274          luma = (prev&0xFFFF0000)|(value&0xFFFF);
 275      else
 276          luma = (prev&0xFFFF)|(value<<16);
 277
 278      if (ioctl(f,MGA_VID_SET_LUMA,luma)) {
 279         perror("Error in mga_vid_config ioctl()");
 280         mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Could not set luma values from the kernel module!\n");
 281         return VO_FALSE;
 282      }
 283
 284      return VO_TRUE;
 285     }
 286
 287   case VOCTRL_GET_EQUALIZER:
 288     {
 289      short val;
 290      uint32_t luma;
 291      struct voctrl_get_equalizer_args *args = data;
 292
 293      if (strcmp(args->name, "brightness") && strcmp(args->name, "contrast"))
 294         return VO_FALSE;
 295
 296      if (ioctl(f,MGA_VID_GET_LUMA,&luma)) {
 297         perror("Error in mga_vid_config ioctl()");
 298         mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Could not get luma values from the kernel module!\n");
 299         return VO_FALSE;
 300      }
 301
 302      if (!strcmp(args->name, "contrast"))
 303          val=(luma & 0xFFFF);
 304      else
 305          val=(luma >> 16);
 306
 307      *args->valueptr = (val*200)/255;
 308
 309      return VO_TRUE;
 310     }
 311
 312 #ifndef VO_XMGA
 313   case VOCTRL_FULLSCREEN:
 314     if (vo_screenwidth && vo_screenheight)
 315         mga_fullscreen();
 316     else
 317         mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Screen width/height unknown!\n");
 318     return VO_TRUE;
 319   case VOCTRL_GET_PANSCAN:
 320       if ( !vo_fs ) return VO_FALSE;
 321       return VO_TRUE;
 322 #endif
 323
 324 #ifdef VO_XMGA
 325   case VOCTRL_ONTOP:
 326       vo_x11_ontop();
 327       return VO_TRUE;
 328   case VOCTRL_GET_PANSCAN:
 329       if ( !initialized || !vo_fs ) return VO_FALSE;
 330       return VO_TRUE;
 331   case VOCTRL_FULLSCREEN:
 332       vo_x11_fullscreen();
 333       vo_panscan_amount=0;
 334     /* indended, fallthrough to update panscan on fullscreen/windowed switch */
 335 #endif
 336   case VOCTRL_SET_PANSCAN:
 337       if ( vo_fs && ( vo_panscan != vo_panscan_amount ) ) // || ( !vo_fs && vo_panscan_amount ) )
 338        {
 339 //        int old_y = vo_panscan_y;
 340         panscan_calc();
 341 //        if ( old_y != vo_panscan_y )
 342         set_window();
 343        }
 344       return VO_TRUE;
 345   }
 346   return VO_NOTIMPL;
 347 }
 348
 349
 350 static int mga_init(int width,int height,unsigned int format){
 351
 352         switch(format){
 353         case IMGFMT_YV12:
 354             width+=width&1;height+=height&1;
 355             mga_vid_config.frame_size = ((width + 31) & ~31) * height + (((width + 31) & ~31) * height) / 2;
 356             mga_vid_config.format=MGA_VID_FORMAT_I420; break;
 357         case IMGFMT_I420:
 358         case IMGFMT_IYUV:
 359             width+=width&1;height+=height&1;
 360             mga_vid_config.frame_size = ((width + 31) & ~31) * height + (((width + 31) & ~31) * height) / 2;
 361             mga_vid_config.format=MGA_VID_FORMAT_YV12; break;
 362         case IMGFMT_YUY2:
 363             mga_vid_config.frame_size = ((width + 31) & ~31) * height * 2;
 364             mga_vid_config.format=MGA_VID_FORMAT_YUY2; break;
 365         case IMGFMT_UYVY:
 366             mga_vid_config.frame_size = ((width + 31) & ~31) * height * 2;
 367             mga_vid_config.format=MGA_VID_FORMAT_UYVY; break;
 368         default:
 369             mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] invalid output format %0X\n",format);
 370             return -1;
 371         }
 372
 373         mga_vid_config.src_width = width;
 374         mga_vid_config.src_height= height;
 375         if(!mga_vid_config.dest_width)
 376             mga_vid_config.dest_width = width;
 377         if(!mga_vid_config.dest_height)
 378             mga_vid_config.dest_height= height;
 379
 380         mga_vid_config.colkey_on=0;
 381
 382         mga_vid_config.num_frames=(vo_directrendering && !vo_doublebuffering)?1:3;
 383         mga_vid_config.version=MGA_VID_VERSION;
 384
 385         if(width > 1024 && height > 1024)
 386         {
 387                 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");
 388                 return -1;
 389         } else if(height <= 1024)
 390         {
 391                 // try whether we have a G550
 392                 int ret;
 393                 if ((ret = ioctl(f,MGA_VID_CONFIG,&mga_vid_config)))
 394                 {
 395                         if(mga_vid_config.card_type != MGA_G550)
 396                         {
 397                                 // we don't have a G550, so our resolution is too high
 398                                 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");
 399                                 return -1;
 400                         } else {
 401                                 // there is a deeper problem
 402                                 // we have a G550, but still couldn't configure mga_vid
 403                                 perror("Error in mga_vid_config ioctl()");
 404                                 mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Your mga_vid driver version is incompatible with this MPlayer version!\n");
 405                                 return -1;
 406                         }
 407                         // if we arrived here, then we could successfully configure mga_vid
 408                         // at this high resolution
 409                 }
 410         } else {
 411                 // configure mga_vid in case resolution is < 1024x1024 too
 412                 if (ioctl(f,MGA_VID_CONFIG,&mga_vid_config))
 413                 {
 414                         perror("Error in mga_vid_config ioctl()");
 415                         mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Your mga_vid driver version is incompatible with this MPlayer version!\n");
 416                         return -1;
 417                 }
 418         }
 419         if (mga_vid_config.card_type == MGA_G200) {
 420                 sws_ctx = sws_getContext(width, height, PIX_FMT_YUV420P,
 421                                          width, height, PIX_FMT_NV12,
 422                                          SWS_BILINEAR, NULL, NULL, NULL);
 423                 if (!sws_ctx) {
 424                         mp_msg(MSGT_VO, MSGL_FATAL,
 425                                "Could not get swscale context to scale for G200.\n");
 426                         return -1;
 427                 }
 428                 mp_msg(MSGT_VO, MSGL_WARN, "G200 cards support is untested. "
 429                                            "Please report whether it works.\n");
 430         }
 431
 432         mp_msg(MSGT_VO,MSGL_V,"[MGA] Using %d buffers.\n",mga_vid_config.num_frames);
 433
 434         frames[0] = (char*)mmap(0,mga_vid_config.frame_size*mga_vid_config.num_frames,PROT_WRITE,MAP_SHARED,f,0);
 435         frames[1] = frames[0] + 1*mga_vid_config.frame_size;
 436         frames[2] = frames[0] + 2*mga_vid_config.frame_size;
 437         frames[3] = frames[0] + 3*mga_vid_config.frame_size;
 438         mga_next_frame = 0;
 439         vid_data = frames[mga_next_frame];
 440
 441         //clear the buffer
 442         memset(frames[0],0x80,mga_vid_config.frame_size*mga_vid_config.num_frames);
 443
 444 #ifndef VO_XMGA
 445         ioctl(f,MGA_VID_ON,0);
 446 #endif
 447
 448   return 0;
 449 }
 450
 451 static int mga_uninit(void){
 452   if(f>=0){
 453         ioctl( f,MGA_VID_OFF,0 );
 454         munmap(frames[0],mga_vid_config.frame_size*mga_vid_config.num_frames);
 455         close(f);
 456         f = -1;
 457   }
 458   if (sws_ctx) {
 459         sws_freeContext(sws_ctx);
 460   }
 461   return 0;
 462 }
 463
 464 static int preinit(const char *vo_subdevice)
 465 {
 466         uint32_t ver;
 467   const char *devname=vo_subdevice?vo_subdevice:"/dev/mga_vid";
 468
 469         f = open(devname,O_RDWR);
 470         if(f == -1)
 471         {
 472                 perror("open");
 473                 mp_tmsg(MSGT_VO,MSGL_WARN, "[MGA] Couldn't open: %s\n",devname);
 474                 return -1;
 475         }
 476
 477         // check whether the mga_vid driver has the same
 478         // version as we expect
 479
 480         ioctl(f,MGA_VID_GET_VERSION,&ver);
 481         if(MGA_VID_VERSION != ver)
 482         {
 483                 mp_tmsg(MSGT_VO, MSGL_ERR, "[MGA] mismatch between kernel (%u) and MPlayer (%u) mga_vid driver versions\n", ver, MGA_VID_VERSION);
 484                 return -1;
 485         }
 486
 487 #ifdef VO_XMGA
 488   if (!vo_init()) {
 489     close(f);
 490     return -1;
 491   }
 492 #endif
 493
 494   return 0;
 495 }
 496
 497 static void set_window( void ){
 498
 499 #ifdef VO_XMGA
 500          if ( WinID )
 501           {
 502            XGetGeometry( mDisplay,vo_window,&mRoot,&drwX,&drwY,&drwWidth,&drwHeight,&drwBorderWidth,&drwDepth );
 503            mp_msg(MSGT_VO,MSGL_V,"[xmga] x: %d y: %d w: %d h: %d\n",drwX,drwY,drwWidth,drwHeight );
 504            drwX=0; drwY=0;
 505            XTranslateCoordinates( mDisplay,vo_window,mRoot,0,0,&drwcX,&drwcY,&mRoot );
 506            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 );
 507
 508           }
 509           else
 510 #endif
 511           { drwX=drwcX=vo_dx; drwY=drwcY=vo_dy; drwWidth=vo_dwidth; drwHeight=vo_dheight; }
 512
 513          aspect(&dwidth,&dheight,A_NOZOOM);
 514          if ( vo_fs )
 515           {
 516            aspect(&dwidth,&dheight,A_ZOOM);
 517            drwX=( vo_screenwidth - (dwidth > vo_screenwidth?vo_screenwidth:dwidth) ) / 2;
 518            drwcX+=drwX;
 519            drwY=( vo_screenheight - (dheight > vo_screenheight?vo_screenheight:dheight) ) / 2;
 520            drwcY+=drwY;
 521            drwWidth=(dwidth > vo_screenwidth?vo_screenwidth:dwidth);
 522            drwHeight=(dheight > vo_screenheight?vo_screenheight:dheight);
 523            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 );
 524           }
 525          vo_dwidth=drwWidth; vo_dheight=drwHeight;
 526
 527 #ifdef VO_XMGA
 528 #ifdef CONFIG_XINERAMA
 529                  if(XineramaIsActive(mDisplay))
 530                  {
 531                         XineramaScreenInfo *screens;
 532                         int num_screens;
 533                         int i;
 534
 535                         screens = XineramaQueryScreens(mDisplay,&num_screens);
 536
 537                         /* find the screen we are on */
 538                         i = 0;
 539                         while(i<num_screens &&
 540                             ((screens[i].x_org < drwcX) ||
 541                              (screens[i].y_org < drwcY) ||
 542                              (screens[i].x_org + screens[i].width >= drwcX) ||
 543                              (screens[i].y_org + screens[i].height >= drwcY)))
 544                         {
 545                                 i++;
 546                         }
 547
 548                         if(i<num_screens)
 549                         {
 550                                 /* save the screen we are on */
 551                                 xinerama_screen = i;
 552                         } else {
 553                                 /* oops.. couldnt find the screen we are on
 554                                  * because the upper left corner left the
 555                                  * visual range. assume we are still on the
 556                                  * same screen
 557                                  */
 558                                 i = xinerama_screen;
 559                         }
 560
 561                         if(xinerama_screen == -1)
 562                         {
 563                                 // The default value of the xinerama_screen is
 564                                 // still there. Which means we could never
 565                                 // figure out on which screen we are.
 566                                 // Choose the first screen as default
 567                                 xinerama_screen = i = 0;
 568                         }
 569
 570                         /* set drwcX and drwcY to the right values */
 571                         drwcX = drwcX - screens[i].x_org;
 572                         drwcY = drwcY - screens[i].y_org;
 573                         XFree(screens);
 574                  }
 575
 576 #endif
 577
 578          mDrawColorKey();
 579 #endif
 580
 581          mga_vid_config.x_org=drwcX;
 582          mga_vid_config.y_org=drwcY;
 583          mga_vid_config.dest_width=drwWidth;
 584          mga_vid_config.dest_height=drwHeight;
 585          if ( vo_panscan > 0.0f && vo_fs )
 586           {
 587            drwX-=vo_panscan_x>>1;
 588            drwY-=vo_panscan_y>>1;
 589            drwWidth+=vo_panscan_x;
 590            drwHeight+=vo_panscan_y;
 591
 592            mga_vid_config.x_org-=vo_panscan_x>>1;
 593            mga_vid_config.y_org-=vo_panscan_y>>1;
 594            mga_vid_config.dest_width=drwWidth;
 595            mga_vid_config.dest_height=drwHeight;
 596 #ifdef VO_XMGA
 597            mDrawColorKey();
 598 #endif
 599           }
 600          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?)" );
 601 }