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//#define memcpy(a,b,c)
/*
* video_out_mga.c
*
* Copyright (C) Aaron Holtzman - Aug 1999
*
* This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
*
* mpeg2dec is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* mpeg2dec is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
LIBVO_EXTERN(mga)
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include "drivers/mga_vid.h"
static vo_info_t vo_info =
{
"Matrox G200/G400 overlay (/dev/mga_vid)",
"mga",
"Aaron Holtzman <aholtzma@ess.engr.uvic.ca>",
""
};
static mga_vid_config_t mga_vid_config;
static uint8_t *vid_data, *frame0, *frame1;
static int next_frame = 0;
static int f;
#include "mga_common.c"
static uint32_t
init(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t fullscreen, char *title, uint32_t format)
{
char *frame_mem;
uint32_t frame_size;
f = open("/dev/mga_vid",O_RDWR);
if(f == -1)
{
fprintf(stderr,"Couldn't open /dev/mga_vid\n");
return(-1);
}
switch(format){
case IMGFMT_YV12:
mga_vid_config.format=MGA_VID_FORMAT_YV12; break;
case IMGFMT_YUY2:
mga_vid_config.format=MGA_VID_FORMAT_YUY2; break;
default:
fprintf(stderr,"mga: invalid output format %0X\n",format);
return (-1);
}
mga_vid_config.src_width = width;
mga_vid_config.src_height= height;
// mga_vid_config.dest_width = width;
// mga_vid_config.dest_height= height;
mga_vid_config.dest_width = d_width;
// (width<704)?704:width; // HACK
mga_vid_config.dest_height= d_height;
// (height<576)?576:height; // HACK
mga_vid_config.x_org= 0; // (720-mga_vid_config.dest_width)/2;
mga_vid_config.y_org= 0; // (576-mga_vid_config.dest_height)/2;
if (ioctl(f,MGA_VID_CONFIG,&mga_vid_config))
{
perror("Error in mga_vid_config ioctl");
}
ioctl(f,MGA_VID_ON,0);
frame_size = ((width + 31) & ~31) * height + (((width + 31) & ~31) * height) / 2;
frame_mem = (char*)mmap(0,frame_size*2,PROT_WRITE,MAP_SHARED,f,0);
frame0 = frame_mem;
frame1 = frame_mem + frame_size;
vid_data = frame0;
next_frame = 0;
//clear the buffer
memset(frame_mem,0x80,frame_size*2);
return 0;
}
static const vo_info_t*
get_info(void)
{
return &vo_info;
}
static void
uninit(void)
{
ioctl( f,MGA_VID_OFF,0 );
printf("vo: uninit!\n");
}
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