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_DBG3) )
	mp_msg(MSGT_VO,MSGL_DBG3, "vo_vesa: flip_page was called\n");
  if(flip_trigger) 
  {
    if(!HAS_DGA()) __vbeCopyData(dga_buffer);
    flip_trigger = 0;
  }
  if(vo_doublebuffering && multi_size > 1)
  {
    int err;
    if((err=vbeSetDisplayStart(multi_buff[multi_idx],vo_vsync)) != VBE_OK)
    {
      vesa_term();
      PRINT_VBE_ERR("vbeSetDisplayStart",err);
      mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_FatalErrorOccurred);
      abort();
    }
    multi_idx = multi_idx ? 0 : 1;
    win.ptr = dga_buffer = video_base + multi_buff[multi_idx];
  }
/*
  else
  if(tripple_buffering)
  {
   vbeSetScheduledDisplayStart(multi_buff[multi_idx],vo_vsync);
   multi_idx++;
   if(multi_idx > 2) multi_idx = 0;
   win.ptr = dga_buffer = video_base + multi_buff[multi_idx];
  }
*/
}

/* is called for rgb only */
static int draw_frame(uint8_t *src[])
{
    if( mp_msg_test(MSGT_VO,MSGL_DBG3) )
        mp_msg(MSGT_VO,MSGL_DBG3, "vo_vesa: draw_frame was called\n");
    if(sws)
    {
	int dstride=HAS_DGA()?video_mode_info.XResolution:dstW;
	int srcStride[1];
	uint8_t *dst[3]= {dga_buffer, NULL, NULL};
	int dstStride[3];
	dstStride[0]=dstride*((dstBpp+7)/8);
	dstStride[1]=
	dstStride[2]=dstStride[0]>>1;
	if(srcFourcc == IMGFMT_RGB32 || srcFourcc == IMGFMT_BGR32)
	    srcStride[0] = srcW*4;
	else
	if(srcFourcc == IMGFMT_RGB24 || srcFourcc == IMGFMT_BGR24)
	    srcStride[0] = srcW*3;
	else
	    srcStride[0] = srcW*2;
	if(HAS_DGA()) dst[0] += y_offset*SCREEN_LINE_SIZE(PIXEL_SIZE())+x_offset*PIXEL_SIZE();
	sws_scale_ordered(sws,src,srcStride,0,srcH,dst,dstStride);
	flip_trigger=1;
    }
    return 0;
}

#define SUBDEV_NODGA     0x00000001UL
#define SUBDEV_FORCEDGA  0x00000002UL
static uint32_t subdev_flags = 0xFFFFFFFEUL;
static uint32_t parseSubDevice(const char *sd)
{
   uint32_t flags;
   flags = 0;
   if(strcmp(sd,"nodga") == 0) { flags |= SUBDEV_NODGA; flags &= ~(SUBDEV_FORCEDGA); }
   else
   if(strcmp(sd,"dga") == 0)   { flags &= ~(SUBDEV_NODGA); flags |= SUBDEV_FORCEDGA; }
   else
   if(strcmp(sd,"neotv_pal") == 0)   { neomagic_tvout = 1; neomagic_tvnorm = NEO_PAL; }
   else
   if(strcmp(sd,"neotv_ntsc") == 0)   { neomagic_tvout = 1; neomagic_tvnorm = NEO_NTSC; }
   else
   if(memcmp(sd,"lvo:",4) == 0) lvo_name = &sd[4]; /* lvo_name will be valid within init() */
#ifdef CONFIG_VIDIX
   else
   if(memcmp(sd,"vidix",5) == 0) vidix_name = &sd[5]; /* vidix_name will be valid within init() */
#endif
   else { mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_UnknownSubdevice, sd); return 0xFFFFFFFFUL; }
   return flags;
}

static int query_format(uint32_t format)
{
    if( mp_msg_test(MSGT_VO,MSGL_DBG3) )
        mp_msg(MSGT_VO,MSGL_DBG3, "vo_vesa: query_format was called: %x (%s)\n",format,vo_format_name(format));
#ifdef CONFIG_VIDIX
    if(vidix_name)return(vidix_query_fourcc(format));
#endif
    if (format == IMGFMT_MPEGPES)
	return 0;
    // FIXME: this is just broken...
    return VFCAP_CSP_SUPPORTED | VFCAP_OSD | VFCAP_SWSCALE | VFCAP_ACCEPT_STRIDE; /* due new SwScale code */
}

static void paintBkGnd( void )
{
    int x_res = video_mode_info.XResolution;
    int y_res = video_mode_info.YResolution;
    int x, y;

    for (y = 0; y < y_res; ++y)
    {
	for (x = 0; x < x_res; ++x)
	{
	    int r, g, b;
	    if ((x & 16) ^ (y & 16))
	    {
		r = x * 255 / x_res;
		g = y * 255 / y_res;
		b = 255 - x * 255 / x_res;
	    }
	    else
	    {
		r = 255 - x * 255 / x_res;
		g = y * 255 / y_res;
		b = 255 - y * 255 / y_res;
	    }
	    __vbeSetPixel(x, y, r, g, b);
	}
    }
}

static void clear_screen( void )
{
    int x_res = video_mode_info.XResolution;
    int y_res = video_mode_info.YResolution;
    int x, y;

    for (y = 0; y < y_res; ++y)
	for (x = 0; x < x_res; ++x)
	    __vbeSetPixel(x, y, 0, 0, 0);
}

static char *model2str(unsigned char type)
{
  char *retval;
  switch(type)
  {
    case memText: retval = "Text"; break;
    case memCGA:  retval="CGA"; break;
    case memHercules: retval="Hercules"; break;
    case memPL: retval="Planar"; break;
    case memPK: retval="Packed pixel"; break;
    case mem256: retval="256"; break;
    case memRGB: retval="Direct color RGB"; break;
    case memYUV: retval="Direct color YUV"; break;
    default: retval="Unknown"; break;
  }
  return retval;
}

unsigned fillMultiBuffer( unsigned long vsize, unsigned nbuffs )
{
  unsigned long screen_size, offset;
  unsigned total,i;
  screen_size = video_mode_info.XResolution*video_mode_info.YResolution*((dstBpp+7)/8);
  if(screen_size%64) screen_size=((screen_size/64)*64)+64;
  total = vsize / screen_size;
  if( mp_msg_test(MSGT_VO,MSGL_V) )
    mp_msg(MSGT_VO,MSGL_V, "vo_vesa: Can use up to %u video buffers\n",total);
  i = 0;
  offset = 0;
  total = min(total,nbuffs);
  while(i < total) { multi_buff[i++] = offset; offset += screen_size; }
  if(!i)
    mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_YouHaveTooLittleVideoMemory, screen_size, vsize);
  return i;
}


static int set_refresh(unsigned x, unsigned y, unsigned mode,struct VesaCRTCInfoBlock *crtc_pass)
{
    unsigned pixclk;
    float H_freq;
    
    range_t *monitor_hfreq = NULL;
    range_t *monitor_vfreq = NULL;
    range_t *monitor_dotclock = NULL;

    monitor_hfreq = str2range(monitor_hfreq_str);
    monitor_vfreq = str2range(monitor_vfreq_str);
    monitor_dotclock = str2range(monitor_dotclock_str);
    
		if (!monitor_hfreq || !monitor_vfreq || !monitor_dotclock) {
			mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_YouHaveToSpecifyTheCapabilitiesOfTheMonitor);
			return 0;
		}

    H_freq = range_max(monitor_hfreq)/1000;
    
//    printf("H_freq MAX %f\n",H_freq);
    
    do
    {
    H_freq -= 0.01;
    GTF_calcTimings(x,y,H_freq,GTF_HF,0, 0,crtc_pass);		      
//    printf("PixelCLK %d\n",(unsigned)crtc_pass->PixelClock);    
    }
    while ( (!in_range(monitor_vfreq,crtc_pass->RefreshRate/100)||
	    !in_range(monitor_hfreq,H_freq*1000))&&(H_freq>0));
    
    pixclk = crtc_pass->PixelClock;
//    printf("PIXclk before %d\n",pixclk);
    vbeGetPixelClock(&mode,&pixclk); 
//    printf("PIXclk after %d\n",pixclk);
    GTF_calcTimings(x,y,pixclk/1000000,GTF_PF,0,0,crtc_pass);
//    printf("Flags: %x\n",(unsigned) crtc_pass->Flags);
/*    
    printf("hTotal %d\n",crtc_pass->hTotal);
    printf("hSyncStart %d\n",crtc_pass->hSyncStart);
    printf("hSyncEnd %d\n",crtc_pass->hSyncEnd);
    
    printf("vTotal %d\n",crtc_pass->vTotal);
    printf("vSyncStart %d\n",crtc_pass->vSyncStart);
    printf("vSyncEnd %d\n",crtc_pass->vSyncEnd);
    
    printf("RR %d\n",crtc_pass->RefreshRate);
    printf("PixelCLK %d\n",(unsigned)crtc_pass->PixelClock);*/
    
    if (!in_range(monitor_vfreq,crtc_pass->RefreshRate/100)||
	!in_range(monitor_hfreq,H_freq*1000)) {
        mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_UnableToFitTheMode);
	return 0;
    }

    return 1;
}

/* fullscreen:
 * bit 0 (0x01) means fullscreen (-fs)
 * bit 1 (0x02) means mode switching (-vm)
 * bit 2 (0x04) enables software scaling (-zoom)
 * bit 3 (0x08) enables flipping (-flip) (NK: and for what?)
 */

static int
config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
{
  static struct VbeInfoBlock vib;
  static int vib_set;
  struct VesaModeInfoBlock vmib;
  struct VesaCRTCInfoBlock crtc_pass;
  size_t i,num_modes;
  uint32_t w,h;
  unsigned short *mode_ptr,win_seg;
  unsigned bpp,best_x = UINT_MAX,best_y=UINT_MAX,best_mode_idx = UINT_MAX;
  int err,fs_mode,use_scaler=0;
	srcW = dstW = width;
	srcH = dstH = height;
	fs_mode = 0;
        if(subdev_flags == 0xFFFFFFFEUL)
	{
	  mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_VESA_DetectedInternalFatalError);
	  return -1;
	}
	if(subdev_flags == 0xFFFFFFFFUL) return -1;
	if(flags & VOFLAG_FLIPPING)
	{
	  mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_VESA_SwitchFlipIsNotSupported);
	}
	if(flags & VOFLAG_SWSCALE) use_scaler = 1;
	if(flags & VOFLAG_FULLSCREEN)
	{
	  if(use_scaler) use_scaler = 2;
	  else          fs_mode = 1;
	} 
	if((err=vbeInit()) != VBE_OK) { PRINT_VBE_ERR("vbeInit",err); return -1; }
	memcpy(vib.VESASignature,"VBE2",4);
	if(!vib_set && (err=vbeGetControllerInfo(&vib)) != VBE_OK)
	{
	  PRINT_VBE_ERR("vbeGetControllerInfo",err);
	  mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_VESA_PossibleReasonNoVbe2BiosFound);
	  return -1;
	}
	vib_set = 1;
	/* Print general info here */
	mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_FoundVesaVbeBiosVersion,
		(int)(vib.VESAVersion >> 8) & 0xff,
		(int)(vib.VESAVersion & 0xff),
		(int)(vib.OemSoftwareRev & 0xffff));
	mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_VideoMemory,vib.TotalMemory*64);
	mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_Capabilites
		,vib.Capabilities & VBE_DAC_8BIT ? "8-bit DAC," : "6-bit DAC,"
		,vib.Capabilities & VBE_NONVGA_CRTC ? "non-VGA CRTC,":"VGA CRTC,"
		,vib.Capabilities & VBE_SNOWED_RAMDAC ? "snowed RAMDAC,":"normal RAMDAC,"
		,vib.Capabilities & VBE_STEREOSCOPIC ? "stereoscopic,":"no stereoscopic,"
		,vib.Capabilities & VBE_STEREO_EVC ? "Stereo EVC":"no stereo");
	mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_BelowWillBePrintedOemInfo);
	mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_YouShouldSee5OemRelatedLines);
	mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_OemInfo,vib.OemStringPtr);
	mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_OemRevision,vib.OemSoftwareRev);
	mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_OemVendor,vib.OemVendorNamePtr);
	mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_OemProductName,vib.OemProductNamePtr);
	mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_OemProductRev,vib.OemProductRevPtr);
	mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_VESA_Hint);
	/* Find best mode here */
	num_modes = 0;
	mode_ptr = vib.VideoModePtr;
	while(*mode_ptr++ != 0xffff) num_modes++;
	switch(format)
	{
		case IMGFMT_BGR8:
		case IMGFMT_RGB8:  bpp = 8; break;
		case IMGFMT_BGR15:
                case IMGFMT_RGB15: bpp = 15; break;
		case IMGFMT_BGR16:
		case IMGFMT_RGB16: bpp = 16; break;
		case IMGFMT_BGR24:
		case IMGFMT_RGB24: bpp = 24; break;
		case IMGFMT_BGR32:
		case IMGFMT_RGB32: bpp = 32; break;
		default:	   bpp = 16; break;
	}
	srcBpp = bpp;
	srcFourcc = format;
	if(vo_dbpp) bpp = vo_dbpp;
	switch(bpp)
	{
	  case 15: draw_alpha_fnc = draw_alpha_15;
		   dstFourcc = IMGFMT_BGR15;
		   break;
	  case 16: draw_alpha_fnc = draw_alpha_16;
		   dstFourcc = IMGFMT_BGR16;
		   break;
	  case 24: draw_alpha_fnc = draw_alpha_24;
		   dstFourcc = IMGFMT_BGR24;
		   break;
	  case 32: draw_alpha_fnc = draw_alpha_32;
		   dstFourcc = IMGFMT_BGR32;
		   break;
	  default: draw_alpha_fnc = draw_alpha_null;
		   dstFourcc = IMGFMT_BGR16;
		   break;
	}
	if( mp_msg_test(MSGT_VO,MSGL_V) )
	{
	  mp_msg(MSGT_VO,MSGL_V, "vo_vesa: Requested mode: %ux%u@%u (%s)\n",width,height,bpp,vo_format_name(format));
	  mp_msg(MSGT_VO,MSGL_V, "vo_vesa: Total modes found: %u\n",num_modes);
	  mode_ptr = vib.VideoModePtr;
	  mp_msg(MSGT_VO,MSGL_V, "vo_vesa: Mode list:");
	  for(i = 0;i < num_modes;i++)
	  {
	    mp_msg(MSGT_VO,MSGL_V, " %04X",mode_ptr[i]);
	  }
	  mp_msg(MSGT_VO,MSGL_V, "\nvo_vesa: Modes in detail:\n");
	}
	mode_ptr = vib.VideoModePtr;
	if(use_scaler)
	{
	    dstW = d_width;
	    dstH = d_height;
	}
	if(vo_screenwidth) w = vo_screenwidth;
	else w = max(dstW,width);
	if(vo_screenheight) h = vo_screenheight;
	else h = max(dstH,height);
        for(i=0;i < num_modes;i++)
	{
		if((err=vbeGetModeInfo(mode_ptr[i],&vmib)) != VBE_OK)
		{
			PRINT_VBE_ERR("vbeGetModeInfo",err);
			continue;
		}
		if(vmib.XResolution >= w &&
		   vmib.YResolution >= h &&
		   (vmib.ModeAttributes & MOVIE_MODE) == MOVIE_MODE &&
		   vmib.BitsPerPixel == bpp &&
		   vmib.MemoryModel == memRGB)
		   {
			if(vmib.XResolution <= best_x &&
			   vmib.YResolution <= best_y)
			   {
				best_x = vmib.XResolution;
				best_y = vmib.YResolution;
				best_mode_idx = i;
			   }