libvo/gtf.h

   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 #ifndef MPLAYER_GTF_H
  20 #define MPLAYER_GTF_H
  21
  22 #include <vbe.h>
  23
  24 #define GTF_VF 0
  25 #define GTF_HF 1
  26 #define GTF_PF 2
  27
  28
  29 typedef struct {
  30     double      Vsync_need;        /* Number of lines for vert sync (default 3) */
  31     double      min_Vsync_BP;      /* Minimum vertical sync + back porch (us) (default 550)*/
  32     double      min_front_porch;   /* Minimum front porch in lines (default 1)  */
  33     double      char_cell_granularity;  /* Character cell granularity in pixels (default 8) */
  34     double      margin_width;      /* Top/ bottom MARGIN size as % of height (%) (default 1.8) */
  35     double      sync_width;       /* Sync width percent of line period ( default 8) */
  36     double  c;          /* Blanking formula offset (default 40)*/
  37     double  j;          /* Blanking formula scaling factor weight (default 20)*/
  38     double  k;          /* Blanking formula scaling factor (default 128)*/
  39     double  m;          /* Blanking formula gradient (default 600)*/
  40     } GTF_constants;
  41
  42 //#ifndef __VESA_VBELIB_INCLUDED__
  43 //    struct VesaCRTCInfoBlock {
  44 //    unsigned short hTotal;     /* Horizontal total in pixels */
  45 //    unsigned short hSyncStart; /* Horizontal sync start in pixels */
  46 //    unsigned short hSyncEnd;   /* Horizontal sync end in pixels */
  47 //    unsigned short vTotal;     /* Vertical total in lines */
  48 //    unsigned short vSyncStart; /* Vertical sync start in lines */
  49 //    unsigned short vSyncEnd;   /* Vertical sync end in lines */
  50 //    unsigned char  Flags;      /* Flags (Interlaced, Double Scan etc) */
  51 //    unsigned long  PixelClock; /* Pixel clock in units of Hz */
  52 //    unsigned short RefreshRate;/* Refresh rate in units of 0.01 Hz*/
  53 //    unsigned char  Reserved[40];/* remainder of CRTCInfoBlock*/
  54 //}__attribute__ ((packed));
  55
  56 //#define VESA_CRTC_DOUBLESCAN 0x01
  57 //#define VESA_CRTC_INTERLACED 0x02
  58 //#define VESA_CRTC_HSYNC_NEG  0x04
  59 //#define VESA_CRTC_VSYNC_NEG  0x08
  60
  61 //#endif
  62
  63 void GTF_calcTimings(double X,double Y,double freq, int type,
  64                      int want_margins, int want_interlace,struct VesaCRTCInfoBlock *result);
  65
  66 #endif /* MPLAYER_GTF_H */