libvo/vo_mga.c

   1 /*
   2  *    output through mga_vid kernel driver
   3  */
   4
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <string.h>
   8
   9 #include "config.h"
  10 #include "mp_msg.h"
  11 #include "help_mp.h"
  12 #include "video_out.h"
  13 #include "video_out_internal.h"
  14
  15 #include <sys/ioctl.h>
  16 #include <unistd.h>
  17 #include <fcntl.h>
  18 #include <sys/mman.h>
  19 #include <linux/fb.h>
  20
  21 #include "drivers/mga_vid.h"
  22 #include "sub.h"
  23 #include "aspect.h"
  24
  25 static const vo_info_t info =
  26 {
  27         "Matrox G200/G4x0/G550 overlay (/dev/mga_vid)",
  28         "mga",
  29         "A'rpi",
  30         "Based on some code by Aaron Holtzman <aholtzma@ess.engr.uvic.ca>"
  31 };
  32
  33 const LIBVO_EXTERN(mga)
  34
  35 #include "mga_common.c"
  36
  37 #define FBDEV   "/dev/fb0"
  38
  39 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)
  40 {
  41
  42 //      if (f >= 0) mga_uninit();
  43         if(!vo_screenwidth || !vo_screenheight) {
  44                 int fd;
  45                 struct fb_var_screeninfo fbinfo;
  46
  47                 if(-1 != (fd = open(FBDEV, O_RDONLY))) {
  48                         if(0 == ioctl(fd, FBIOGET_VSCREENINFO, &fbinfo)) {
  49                                 if(!vo_screenwidth)   vo_screenwidth = fbinfo.xres;
  50                                 if(!vo_screenheight) vo_screenheight = fbinfo.yres;
  51                         } else {
  52                                 perror("FBIOGET_VSCREENINFO");
  53                         }
  54                         close(fd);
  55                 } else {
  56                         perror(FBDEV);
  57                 }
  58         }
  59
  60         if(vo_screenwidth && vo_screenheight){
  61                 aspect_save_orig(width,height);
  62                 aspect_save_prescale(d_width,d_height);
  63                 aspect_save_screenres(vo_screenwidth,vo_screenheight);
  64
  65                 if(flags&VOFLAG_FULLSCREEN) { /* -fs */
  66                         aspect(&d_width,&d_height,A_ZOOM);
  67                         vo_fs = VO_TRUE;
  68                 } else {
  69                         aspect(&d_width,&d_height,A_NOZOOM);
  70                         vo_fs = VO_FALSE;
  71                 }
  72                 mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_MGA_AspectResized,d_width,d_height);
  73         }
  74
  75         vo_dwidth=d_width; vo_dheight=d_height;
  76         mga_vid_config.dest_width = d_width;
  77         mga_vid_config.dest_height= d_height;
  78         mga_vid_config.x_org= 0; // (720-mga_vid_config.dest_width)/2;
  79         mga_vid_config.y_org= 0; // (576-mga_vid_config.dest_height)/2;
  80         if(vo_screenwidth && vo_screenheight){
  81                 mga_vid_config.x_org=(vo_screenwidth-d_width)/2;
  82                 mga_vid_config.y_org=(vo_screenheight-d_height)/2;
  83         }
  84
  85     return mga_init(width,height,format);
  86 }
  87
  88 static void uninit(void)
  89 {
  90     mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_MGA_Uninit);
  91     mga_uninit();
  92 }
  93
  94 static void flip_page(void)
  95 {
  96     vo_mga_flip_page();
  97 }
  98
  99
 100 static void check_events(void)
 101 {
 102 }
 103