vo_vesa.c

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· C语言 代码 · 共 1,140 行 · 第 1/3 页

		   }
		if( mp_msg_test(MSGT_VO,MSGL_V) )
		{
		  mp_msg(MSGT_VO,MSGL_V, "vo_vesa: Mode (%03u): mode=%04X %ux%u@%u attr=%04X\n"
			 "vo_vesa:             #planes=%u model=%u(%s) #pages=%u\n"
			 "vo_vesa:             winA=%X(attr=%u) winB=%X(attr=%u) winSize=%u winGran=%u\n"
			 "vo_vesa:             direct_color=%u DGA_phys_addr=%08lX\n"
			 ,i,mode_ptr[i],vmib.XResolution,vmib.YResolution,vmib.BitsPerPixel,vmib.ModeAttributes
			 ,vmib.NumberOfPlanes,vmib.MemoryModel,model2str(vmib.MemoryModel),vmib.NumberOfImagePages
			 ,vmib.WinASegment,vmib.WinAAttributes,vmib.WinBSegment,vmib.WinBAttributes,vmib.WinSize,vmib.WinGranularity
			 ,vmib.DirectColorModeInfo,vmib.PhysBasePtr);
		  if(vmib.MemoryModel == 6 || vmib.MemoryModel == 7)
			mp_msg(MSGT_VO,MSGL_V, "vo_vesa:             direct_color_info = %u:%u:%u:%u\n"
				,vmib.RedMaskSize,vmib.GreenMaskSize,vmib.BlueMaskSize,vmib.RsvdMaskSize);
		  fflush(stdout);
		}
	}
	if(best_mode_idx != UINT_MAX)
	{
		video_mode = vib.VideoModePtr[best_mode_idx];
		fflush(stdout);
		if((err=vbeGetMode(&init_mode)) != VBE_OK)
		{
			PRINT_VBE_ERR("vbeGetMode",err);
			return -1;
		}
		if( mp_msg_test(MSGT_VO,MSGL_V) ) {
			mp_msg(MSGT_VO,MSGL_V, "vo_vesa: Initial video mode: %x\n",init_mode); }
		if((err=vbeGetModeInfo(video_mode,&video_mode_info)) != VBE_OK)
		{
			PRINT_VBE_ERR("vbeGetModeInfo",err);
			return -1;
		}
		dstBpp = video_mode_info.BitsPerPixel;
 		mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_UsingVesaMode
			,best_mode_idx,video_mode,video_mode_info.XResolution
			,video_mode_info.YResolution,dstBpp);
		if(subdev_flags & SUBDEV_NODGA) video_mode_info.PhysBasePtr = 0;
		if(use_scaler || fs_mode)
		{
		      /* software scale */
		      if(use_scaler > 1
#ifdef CONFIG_VIDIX
				|| vidix_name
#endif			  
			  )
		      {
		        aspect_save_orig(width,height);
			aspect_save_prescale(d_width,d_height);
			aspect_save_screenres(video_mode_info.XResolution,video_mode_info.YResolution);
			aspect(&dstW,&dstH,A_ZOOM);
		      }
		      else
		      if(fs_mode)
		      {
			dstW = video_mode_info.XResolution;
			dstH = video_mode_info.YResolution;
		      }
		      use_scaler = 1;
		}
		if(!lvo_name
#ifdef CONFIG_VIDIX
		&& !vidix_name
#endif
		) 
		{
		    sws = sws_getContextFromCmdLine(srcW,srcH,srcFourcc,dstW,dstH,dstFourcc);
		    if(!sws)
		    {
 			mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_CantInitializeSwscaler);
			return -1;
		    }
		    else if( mp_msg_test(MSGT_VO,MSGL_V) ) {
			mp_msg(MSGT_VO,MSGL_V, "vo_vesa: Using SW BES emulator\n"); }
		}
		if((video_mode_info.WinAAttributes & FRAME_MODE) == FRAME_MODE)
		   win.idx = 0; /* frame A */
		else
		if((video_mode_info.WinBAttributes & FRAME_MODE) == FRAME_MODE)
		   win.idx = 1; /* frame B */
		else win.idx = -2;
		/* Try use DGA instead */
		if(video_mode_info.PhysBasePtr && vib.TotalMemory && (video_mode_info.ModeAttributes & MODE_ATTR_LINEAR))
		{
		    void *lfb;
		    unsigned long vsize;
		    vsize = vib.TotalMemory*64*1024;
		    lfb = vbeMapVideoBuffer(video_mode_info.PhysBasePtr,vsize);
		    if(lfb == NULL)
		      mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_CantUseDga);
		    else
		    {
		      video_base = win.ptr = lfb;
		      win.low = 0UL;
		      win.high = vsize;
		      win.idx = -1; /* HAS_DGA() is on */
		      video_mode |= VESA_MODE_USE_LINEAR;
 		      mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_UsingDga
			     ,video_mode_info.PhysBasePtr
			     ,vsize);
		      if( mp_msg_test(MSGT_VO,MSGL_V) ) {
			printf(" at %08lXh",(unsigned long)lfb); }
		      printf("\n");
		      if(!(multi_size = fillMultiBuffer(vsize,2))) return -1;
		      if(vo_doublebuffering && multi_size < 2)
 			mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_CantUseDoubleBuffering);
		    }
		}
		if(win.idx == -2)
		{
 		   mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_VESA_CantFindNeitherDga);
		   return -1;
		}
		if(!HAS_DGA())
		{
		  if(subdev_flags & SUBDEV_FORCEDGA)
		  {
 			mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_VESA_YouveForcedDga);
			return -1;
		  }
		  if(!(win_seg = win.idx == 0 ? video_mode_info.WinASegment:video_mode_info.WinBSegment))
		  {
 		    mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_VESA_CantFindValidWindowAddress);
		    return -1;
		  }
		  win.ptr = PhysToVirtSO(win_seg,0);
		  win.low = 0L;
		  win.high= video_mode_info.WinSize*1024;
 		  mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_UsingBankSwitchingMode
			 ,(unsigned long)win.ptr,(unsigned long)win.high);
		}
		if(video_mode_info.XResolution > dstW)
		    x_offset = (video_mode_info.XResolution - dstW) / 2;
		else x_offset = 0;
		if(video_mode_info.YResolution > dstH)
		    y_offset = (video_mode_info.YResolution - dstH) / 2;
		else y_offset = 0;
		if( mp_msg_test(MSGT_VO,MSGL_V) )
 		  mp_msg(MSGT_VO,MSGL_V, "vo_vesa: image: %ux%u screen = %ux%u x_offset = %u y_offset = %u\n"
			,dstW,dstH
			,video_mode_info.XResolution,video_mode_info.YResolution
			,x_offset,y_offset);
		if(HAS_DGA())
		{
		  dga_buffer = win.ptr; /* Trickly ;) */
		  cpy_blk_fnc = __vbeCopyBlockFast;
		}
		else
		{
		  cpy_blk_fnc = __vbeCopyBlock;
		  if(!lvo_name
#ifdef CONFIG_VIDIX
		   && !vidix_name
#endif
		  )
		  {
		    if(!(dga_buffer = memalign(32,video_mode_info.XResolution*video_mode_info.YResolution*dstBpp)))
		    {
 		      mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_VESA_CantAllocateTemporaryBuffer);
		      return -1;
		    }
		    if( mp_msg_test(MSGT_VO,MSGL_V) ) {
			mp_msg(MSGT_VO,MSGL_V, "vo_vesa: dga emulator was allocated = %p\n",dga_buffer); }
		  }
		}
		if((err=vbeSaveState(&init_state)) != VBE_OK)
		{
			PRINT_VBE_ERR("vbeSaveState",err);
		}
		
		/* TODO: 
		         user might pass refresh value,
			 GTF constants might be read from monitor
			 for best results, I don't have a spec (RM)
		*/
		
		if (((int)(vib.VESAVersion >> 8) & 0xff) > 2) {
		
		if (set_refresh(video_mode_info.XResolution,video_mode_info.YResolution,video_mode,&crtc_pass))
		video_mode = video_mode | 0x800;
		
		}
		
		;
		
		if ((err=vbeSetMode(video_mode,&crtc_pass)) != VBE_OK)
		{
			PRINT_VBE_ERR("vbeSetMode",err);
			return -1;
		}
		
		if (neomagic_tvout) {
		    err = vbeSetTV(video_mode,neomagic_tvnorm);
		    if (err!=0x4f) {
 		    mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_SorryUnsupportedMode);
		    }
		    else {
 		    mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_OhYouReallyHavePictureOnTv);
		    } 
		}
		/* Now we are in video mode!!!*/
		/* Below 'return -1' is impossible */
		if( mp_msg_test(MSGT_VO,MSGL_V) )
		{
		  mp_msg(MSGT_VO,MSGL_V, "vo_vesa: Graphics mode was activated\n");
		  fflush(stdout);
		}
		if(lvo_name)
		{
		  if(vlvo_init(width,height,x_offset,y_offset,dstW,dstH,format,dstBpp) != 0)
		  {
 		    mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_VESA_CantInitialozeLinuxVideoOverlay);
		    vesa_term();
		    return -1;
		  }
		  else mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_UsingVideoOverlay,lvo_name);
		  lvo_opened = 1;
		}
#ifdef CONFIG_VIDIX
		else
		if(vidix_name)
		{
		  if(vidix_init(width,height,x_offset,y_offset,dstW,
				dstH,format,dstBpp,
				video_mode_info.XResolution,video_mode_info.YResolution) != 0)
		  {
		    mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_VESA_CantInitializeVidixDriver);
		    vesa_term();
		    return -1;
		  }
		  else mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_UsingVidix);
		  vidix_start();

		  /* set colorkey */       
		  if (vidix_grkey_support())
		  {
		    vidix_grkey_get(&gr_key);
		    gr_key.key_op = KEYS_PUT;
#if 0
		    if (!(vo_colorkey & 0xFF000000))
		    {
			gr_key.ckey.op = CKEY_TRUE;
			gr_key.ckey.red = (vo_colorkey & 0x00FF0000) >> 16;
			gr_key.ckey.green = (vo_colorkey & 0x0000FF00) >> 8;
			gr_key.ckey.blue = vo_colorkey & 0x000000FF;
		    } else
#endif
			gr_key.ckey.op = CKEY_FALSE;
		    vidix_grkey_set(&gr_key);
		  }         
		  vidix_opened = 1;
		}
#endif
	}
	else
	{
 	  mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_VESA_CantFindModeFor,width,height,bpp);
	  return -1;
	}
	if( mp_msg_test(MSGT_VO,MSGL_V) )
	{
	  mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_InitializationComplete);
	  fflush(stdout);
	}
	if(HAS_DGA() && vo_doublebuffering)
	{
            if (VBE_OK != vbeSetDisplayStart(0, vo_vsync))
            {
              mp_msg(MSGT_VO,MSGL_WARN, "[VO_VESA] Can't use double buffering: changing displays failed.\n");
              multi_size = 1;
            }
	    for(i=0;i<multi_size;i++)
	    {
		win.ptr = dga_buffer = video_base + multi_buff[i];
                clear_screen();	/* Clear screen for stupid BIOSes */
		if( mp_msg_test(MSGT_VO,MSGL_DBG2) ) paintBkGnd();
	    }
	}
	else
	{
            clear_screen();	/* Clear screen for stupid BIOSes */
	    if( mp_msg_test(MSGT_VO,MSGL_DBG2) )
	    {
	        int x;
	        x = (video_mode_info.XResolution/video_mode_info.XCharSize)/2-strlen(title)/2;
	        if(x < 0) x = 0;
	        paintBkGnd();
	        vbeWriteString(x,0,7,title);
	    }
	}
	return 0;
}

static void
uninit(void)
{
    // not inited
    vesa_term();
    if( mp_msg_test(MSGT_VO,MSGL_DBG3) )
        mp_msg(MSGT_VO,MSGL_DBG3, "vo_vesa: uninit was called\n");
}


static void check_events(void)
{
    if( mp_msg_test(MSGT_VO,MSGL_DBG3) )
        mp_msg(MSGT_VO,MSGL_DBG3, "vo_vesa: check_events was called\n");
/* Nothing to do */
}

static int preinit(const char *arg)
{
  int pre_init_err = 0;
  int fd;
  if( mp_msg_test(MSGT_VO,MSGL_DBG2) )
        mp_msg(MSGT_VO,MSGL_DBG2, "vo_vesa: preinit(%s) was called\n",arg);
  if( mp_msg_test(MSGT_VO,MSGL_DBG3) )
        mp_msg(MSGT_VO,MSGL_DBG3, "vo_vesa: subdevice %s is being initialized\n",arg);
  subdev_flags = 0;
  lvo_name = NULL;
#ifdef CONFIG_VIDIX
  vidix_name = NULL;
#endif
  if(arg) subdev_flags = parseSubDevice(arg);
  if(lvo_name) pre_init_err = vlvo_preinit(lvo_name);
#ifdef CONFIG_VIDIX
  else if(vidix_name) pre_init_err = vidix_preinit(vidix_name,&video_out_vesa);
#endif
  // check if we can open /dev/mem (it will be opened later in config(), but if we
  // detect now that we can't we can exit cleanly)
  fd = open("/dev/mem", O_RDWR);
  if (fd < 0)
  	return -1;
  else
  	close(fd);
  if( mp_msg_test(MSGT_VO,MSGL_DBG3) )
        mp_msg(MSGT_VO,MSGL_DBG3, "vo_subdevice: initialization returns: %i\n",pre_init_err);
  return pre_init_err;
}

static int control(uint32_t request, void *data, ...)
{
  switch (request) {
  case VOCTRL_QUERY_FORMAT:
    return query_format(*((uint32_t*)data));
  }

#ifdef CONFIG_VIDIX
  if (vidix_name) {
    switch (request) {
    case VOCTRL_SET_EQUALIZER:
    {
      va_list ap;
      int value;
    
      va_start(ap, data);
      value = va_arg(ap, int);
      va_end(ap);

      return vidix_control(request, data, (int *)value);
    }
    case VOCTRL_GET_EQUALIZER:
    {
      va_list ap;
      int *value;
    
      va_start(ap, data);
      value = va_arg(ap, int*);
      va_end(ap);

      return vidix_control(request, data, value);
    }
    }
    return vidix_control(request, data);
  }
#endif

  return VO_NOTIMPL;
}