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//#define SHOW_TIME

/*
 *    vo_xmga.c
 *
 *      Copyright (C) Zoltan Ponekker - Jan 2001
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "config.h"

#include "video_out.h"
#include "video_out_internal.h"


#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>

#include "drivers/mga_vid.h"

#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <errno.h>

#ifdef HAVE_XINERAMA
#include <X11/extensions/Xinerama.h>
#endif

#include "x11_common.h"
#include "sub.h"
#include "aspect.h"

#ifdef SHOW_TIME
#include "../linux/timer.h"
static unsigned int timer=0;
static unsigned int timerd=0;
#endif

#ifdef HAVE_NEW_GUI
#include "../Gui/interface.h"
#endif

static vo_info_t info =
{
 "Matrox G200/G4x0/G550 overlay in X11 window (using /dev/mga_vid)",
 "xmga",
 "Zoltan Ponekker <pontscho@makacs.poliod.hu>",
 ""
};

LIBVO_EXTERN( xmga )


static XGCValues              wGCV;

static uint32_t               mDepth;
static XWindowAttributes      attribs;
static uint32_t               fgColor;

static uint32_t               mvHeight;
static uint32_t               mvWidth;

static Window                 mRoot;

static XSetWindowAttributes   xWAttribs;

static int inited=0;

#define VO_XMGA
#include "mga_common.c"
#undef  VO_XMGA

static void mDrawColorKey( void )
{
 XSetBackground( mDisplay,vo_gc,0 );
 XClearWindow( mDisplay,vo_window );
 XSetForeground( mDisplay,vo_gc,fgColor );
 XFillRectangle( mDisplay,vo_window,vo_gc,drwX,drwY,drwWidth,(vo_fs?drwHeight - 1:drwHeight) );
 XFlush( mDisplay );
}

static void check_events(void)
{
 int e=vo_x11_check_events(mDisplay);
 if ( !(e&VO_EVENT_RESIZE) && !(e&VO_EVENT_EXPOSE) ) return;
 set_window();
 mDrawColorKey();
 if ( ioctl( f,MGA_VID_CONFIG,&mga_vid_config ) ) mp_msg(MSGT_VO,MSGL_WARN,"Error in mga_vid_config ioctl (wrong mga_vid.o version?)" );
}

static void flip_page(void){
#ifdef SHOW_TIME
    unsigned int t;
    t=GetTimer();
    mp_msg(MSGT_VO,MSGL_STATUS,"  [timer: %08X  diff: %6d  dd: %6d ]  \n",t,t-timer,(t-timer)-timerd);
    timerd=t-timer;
    timer=t;
#endif

   vo_mga_flip_page();
}

static uint32_t config( uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
{
 char                 * mTitle=(title == NULL) ? "XMGA render" : title;
 XVisualInfo            vinfo;
 unsigned long          xswamask;

 if(mga_init(width,height,format)) return -1; // ioctl errors?

 aspect_save_orig(width,height);
 aspect_save_prescale(d_width,d_height);
 aspect_save_screenres(vo_screenwidth,vo_screenheight);

 mvWidth=width; mvHeight=height;

 vo_panscan_x=vo_panscan_y=vo_panscan_amount=0;

 vo_dx=( vo_screenwidth - d_width ) / 2;
 vo_dy=( vo_screenheight - d_height ) / 2;
 vo_dwidth=d_width; vo_dheight=d_height;
 vo_mouse_autohide=1;

 switch ( vo_depthonscreen )
  {
   case 32:
   case 24: fgColor=0x00ff00ffL; break;
   case 16: fgColor=0xf81fL; break;
   case 15: fgColor=0x7c1fL; break;
   default: mp_msg(MSGT_VO,MSGL_ERR,"Sorry, this (%d) color depth not supported.\n",vo_depthonscreen ); return -1;
  }

  inited=1;

  aspect(&vo_dwidth,&vo_dheight,A_NOZOOM);

#ifdef HAVE_NEW_GUI
  if(use_gui)
    guiGetEvent( guiSetShVideo,0 ); // the GUI will set up / resize the window
  else
#endif
  {
   if ( flags&1 ) aspect(&dwidth,&dheight,A_ZOOM);

   XGetWindowAttributes( mDisplay,mRootWin,&attribs );
   mDepth=attribs.depth;
   if ( mDepth != 15 && mDepth != 16 && mDepth != 24 && mDepth != 32 ) mDepth=24;
   XMatchVisualInfo( mDisplay,mScreen,mDepth,TrueColor,&vinfo );
   xWAttribs.colormap=XCreateColormap( mDisplay,mRootWin,vinfo.visual,AllocNone );
   xWAttribs.background_pixel=0;
   xWAttribs.border_pixel=0;
   xWAttribs.event_mask=StructureNotifyMask | ExposureMask | KeyPressMask |
       ((WinID==0)?0:(ButtonPressMask | ButtonReleaseMask | PointerMotionMask | PropertyChangeMask));
   xswamask=CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;

    if ( WinID>=0 ){
    
      vo_window = WinID ? ((Window)WinID) : mRootWin;
      if ( WinID )
       {
        XUnmapWindow( mDisplay,vo_window );
        XChangeWindowAttributes( mDisplay,vo_window,xswamask,&xWAttribs);
        vo_x11_selectinput_witherr( mDisplay,vo_window,StructureNotifyMask | KeyPressMask | PropertyChangeMask | PointerMotionMask | ButtonPressMask | ButtonReleaseMask | ExposureMask );
       } else XSelectInput( mDisplay,vo_window,ExposureMask );
       
    } else {

     if ( vo_window == None )
	  {
       vo_window=XCreateWindow( mDisplay,mRootWin,
         vo_dx,vo_dy,
         vo_dwidth,vo_dheight,
         xWAttribs.border_pixel,
         mDepth,
         InputOutput,
         vinfo.visual,xswamask,&xWAttribs );
     
       vo_x11_classhint( mDisplay,vo_window,"xmga" );
       vo_hidecursor(mDisplay,vo_window);
       vo_x11_sizehint( vo_dx,vo_dy,vo_dwidth,vo_dheight,0 );

       XStoreName( mDisplay,vo_window,mTitle );
       XMapWindow( mDisplay,vo_window );
 
       if ( flags&1 ) vo_x11_fullscreen();

#ifdef HAVE_XINERAMA
       vo_x11_xinerama_move(mDisplay,vo_window);
#endif
      } else if ( !(flags&1) ) XMoveResizeWindow( mDisplay,vo_window,vo_dx,vo_dy,vo_dwidth,vo_dheight );
     }

    if ( vo_gc != None ) XFreeGC( mDisplay,vo_gc );
    vo_gc=XCreateGC( mDisplay,vo_window,GCForeground,&wGCV );

  } // !GUI

 if ( ( flags&1 )&&( !WinID ) ) { vo_dx=0; vo_dy=0; vo_dwidth=vo_screenwidth; vo_dheight=vo_screenheight; vo_fs=1; }

 panscan_calc();

 mga_vid_config.colkey_on=1;
 mga_vid_config.colkey_red=255;
 mga_vid_config.colkey_green=0;
 mga_vid_config.colkey_blue=255;

 set_window();	// set up mga_vid_config.dest_width etc

 saver_off(mDisplay);

 XFlush( mDisplay );
 XSync( mDisplay,False );
 
 ioctl(f,MGA_VID_ON,0);

 return 0;
}

static void uninit(void){
 mp_msg(MSGT_VO,MSGL_V,"vo: uninit!\n");
 mga_uninit();
 if(!inited) return; // no window?
 inited=0;
 saver_on(mDisplay);
 vo_x11_uninit(); // destroy the window
}