unsigned width = rects[0].w; // spec.DisplayRect.w is 0. Only rects[0].w seems to return something sane.
   unsigned height = spec.DisplayRect.h;
   //fprintf(stderr, "(%u x %u)\n", width, height);
   // PSX core inserts weird padding on left and right edges.
   // 320 width -> 350 width.
   // 364 width -> 400 width.
   // 256 width -> 280 width.
   // 560 width -> 512 width.
   // 640 width -> 700 width.
   // Rectify this.
   const uint32_t *pix = surf->pixels;
   switch (width)
   {
      // The shifts are not simply (padded_width - real_width) / 2.
      case 350:
         pix += 14;
         width = 320;
         break;

      case 700:
         pix += 33;
         width = 640;
         break;

      case 400:
         pix += 15;
         width = 364;
         break;

      case 280:
         pix += 10;
         width = 256;
         break;

      case 560:
         pix += 26;
         width = 512;
         break;

      default:
         // This shouldn't happen.
         break;
   }
   video_cb(pix, width, height, FB_WIDTH << 2);