libvo/vo_mga.c

   1 /*
   2  * video output through mga_vid kernel driver
   3  *
   4  * This file is part of MPlayer.
   5  *
   6  * MPlayer is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * MPlayer is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24
  25 #include "config.h"
  26 #include "mp_msg.h"
  27 #include "video_out.h"
  28 #include "video_out_internal.h"
  29
  30 #include <sys/ioctl.h>
  31 #include <unistd.h>
  32 #include <fcntl.h>
  33 #include <sys/mman.h>
  34 #include <linux/fb.h>
  35
  36 #include "drivers/mga_vid.h"
  37 #include "sub/sub.h"
  38 #include "aspect.h"
  39
  40 static const vo_info_t info =
  41 {
  42         "Matrox G200/G4x0/G550 overlay (/dev/mga_vid)",
  43         "mga",
  44         "A'rpi",
  45         "Based on some code by Aaron Holtzman <aholtzma@ess.engr.uvic.ca>"
  46 };
  47
  48 const LIBVO_EXTERN(mga)
  49
  50 #include "mga_template.c"
  51
  52 #define FBDEV   "/dev/fb0"
  53
  54 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)
  55 {
  56
  57 //      if (f >= 0) mga_uninit();
  58         if(!vo_screenwidth || !vo_screenheight) {
  59                 int fd;
  60                 struct fb_var_screeninfo fbinfo;
  61
  62                 if(-1 != (fd = open(FBDEV, O_RDONLY))) {
  63                         if(0 == ioctl(fd, FBIOGET_VSCREENINFO, &fbinfo)) {
  64                                 if(!vo_screenwidth)   vo_screenwidth = fbinfo.xres;
  65                                 if(!vo_screenheight) vo_screenheight = fbinfo.yres;
  66                         } else {
  67                                 perror("FBIOGET_VSCREENINFO");
  68                         }
  69                         close(fd);
  70                 } else {
  71                         perror(FBDEV);
  72                 }
  73         }
  74
  75         if(vo_screenwidth && vo_screenheight){
  76                 aspect_save_orig(width,height);
  77                 aspect_save_prescale(d_width,d_height);
  78                 aspect_save_screenres(vo_screenwidth,vo_screenheight);
  79
  80                 if(flags&VOFLAG_FULLSCREEN) { /* -fs */
  81                         aspect(&d_width,&d_height,A_ZOOM);
  82                         vo_fs = VO_TRUE;
  83                 } else {
  84                         aspect(&d_width,&d_height,A_NOZOOM);
  85                         vo_fs = VO_FALSE;
  86                 }
  87                 mp_tmsg(MSGT_VO,MSGL_INFO, "[VO_MGA] aspect(): resized to %dx%d.\n",d_width,d_height);
  88         }
  89
  90         vo_dwidth=d_width; vo_dheight=d_height;
  91         mga_vid_config.dest_width = d_width;
  92         mga_vid_config.dest_height= d_height;
  93         mga_vid_config.x_org= 0; // (720-mga_vid_config.dest_width)/2;
  94         mga_vid_config.y_org= 0; // (576-mga_vid_config.dest_height)/2;
  95         if(vo_screenwidth && vo_screenheight){
  96                 mga_vid_config.x_org=(vo_screenwidth-d_width)/2;
  97                 mga_vid_config.y_org=(vo_screenheight-d_height)/2;
  98         }
  99
 100     return mga_init(width,height,format);
 101 }
 102
 103 static void uninit(void)
 104 {
 105     mp_tmsg(MSGT_VO,MSGL_INFO, "[VO] uninit!\n");
 106     mga_uninit();
 107 }
 108
 109 static void flip_page(void)
 110 {
 111     vo_mga_flip_page();
 112 }
 113
 114
 115 static void check_events(void)
 116 {
 117 }