pkg://mpeg_wdgt2.0b.tar.gz:88693/Xroutines.c  downloads

#include "video.h"

extern Window window;
extern int ditherType;;

#ifdef SH_MEM

int gXErrorFlag = 0;

int HandleXError(dpy, event)
     Display *dpy;
     XErrorEvent *event;
{
  gXErrorFlag = 1;

  return 0;
}

void InstallXErrorHandler()
{
  int HandleXError();

  XSetErrorHandler(HandleXError);
  XFlush(display);
}

void DeInstallXErrorHandler()
{
  XSetErrorHandler(NULL);
  XFlush(display);
}
#endif


/*
 *--------------------------------------------------------------
 *
 * ResizeDisplay --
 *
 *	Resizes display window.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *      None.
 *
 *--------------------------------------------------------------
 */

void ResizeDisplay(w, h)
     int w, h;
{

  if (ditherType == NO_DITHER) return;

  XResizeWindow(display, window, w, h);
  XFlush(display);
}


/*
 *--------------------------------------------------------------
 *
 * MakeWindow --
 *
 *	Create X Window
 *
 * Results:
 *	Read the code.
 *
 * Side effects:
 *      None.
 *
 *--------------------------------------------------------------
 */

#ifdef SH_MEM
int CompletionType = -1;
#endif

void 
MakeWindow(name) 
char *name;
{
  
  XSizeHints hint;
  unsigned int fg, bg;
  char *hello = "MPEG Play";
  int screen;
  Window CreateFullColorWindow();

  if (ditherType == NO_DITHER) return;

  display = XOpenDisplay(name);
  if (display == NULL) {
    fprintf(stderr, "Can not open display\n");
    exit(-2);
  }

#ifdef SH_MEM
  if(shmemFlag)
    CompletionType = XShmGetEventBase(display) + ShmCompletion;
#endif

  screen = DefaultScreen (display);
  
  /* Fill in hint structure */

  hint.x = 200;
  hint.y = 300;
  hint.width = 150;
  hint.height = 150;
  hint.flags = PPosition | PSize;
  
  /* Get some colors */
  
  bg = WhitePixel (display, screen);
  fg = BlackPixel (display, screen);
  
  /* Make the window */
  
  if (ditherType == FULL_COLOR_DITHER) {
    window = CreateFullColorWindow (display, hint.x, hint.y, hint.width, hint.height);
    if (window == 0) {
      fprintf (stderr, "-color option only valid on full color display\n");
      exit (-1);
    }
  } else if (ditherType == MONO_DITHER || ditherType == MONO_THRESHOLD ||
	     ditherType == MONO_FS4_DITHER || ditherType == HALFTONE_DITHER) {
    window = XCreateSimpleWindow (display,
				  DefaultRootWindow (display),
				  hint.x, hint.y,
				  hint.width, hint.height,
				  4, fg, bg);
  } else {
    XVisualInfo vinfo;
    
    if (!XMatchVisualInfo (display, screen, 8, PseudoColor, 
			   &vinfo)) {

      if (!XMatchVisualInfo(display, screen, 8, GrayScale, 
			    &vinfo)) {

	fprintf(stderr, "-requires 8 bit display\n");
	exit(-1);
      }
    }

    window = XCreateSimpleWindow (display,
				 DefaultRootWindow (display),
				 hint.x, hint.y,
				 hint.width, hint.height,
				 4, fg, bg);
  }
  
  XSelectInput(display, window, StructureNotifyMask);

  /* Tell other applications about this window */
  
  XSetStandardProperties (display, window, hello, hello, None, NULL, 0, &hint);
  
  /* Map window. */

  XMapWindow(display, window);

  /* Wait for map. */
  while(1) {
    XEvent	xev;

    XNextEvent(display, &xev);
    if(xev.type == MapNotify && xev.xmap.event == window)
      break;
  }
  XSelectInput(display, window, NoEventMask);
}