Attachment 26551 Details for Bug 22159 – Example code file for xcb_lock.c error

Example code file for xcb_lock.c error

xcb_Test.c (text/plain), 4.11 KB, created by G_Besdo on 2009-06-08 10:43:14 UTC

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Creator: G_Besdo

Created: 2009-06-08 10:43:14 UTC

Size: 4.11 KB

patch

obsolete

>/**
>* Example code file for xcb_lock.c error
>* Gunnar Besdo
>* E-mail: gunnar@besdo.de
>**/
>#include <stdlib.h>
>#include <stdio.h>
>#include <unistd.h>
>#include <Xlib.h>
>#include <pthread.h>
>
>int gb_thread_ret=0, gb_aus=0, gb_aus2=0, gb_screen_nr;
>pthread_t gb_pthread;
>Window gb_window, gb_rootw;
>Display *gb_display;
>XSetWindowAttributes gb_xswa;
>GC gb_gc;
>XGCValues gb_gcv;
>unsigned long *gb_pixdefcol;
>Colormap gb_colormap;
>
>
>unsigned long gbs_XW_GetColor(double r, double g, double b) {
>   Colormap cmap;
>   XColor exact_def;
>   cmap=DefaultColormap(gb_display, gb_screen_nr);
>   exact_def.red=(unsigned short)(r*65535);
>   exact_def.green=(unsigned short)(g*65535);
>   exact_def.blue=(unsigned short)(b*65535);
>   if (!XAllocColor(gb_display, cmap, &exact_def)) {
>      fprintf(stderr, "%s:Error in XAllocColor\n", "xcb_Test");
>      exit(0);
>   }
>   return(exact_def.pixel);
>}
>
>void *gb_thread(void *a) {
>   static XEvent x_event;
>   int ih1;
>   printf("Test OK\n");
>   gb_pixdefcol=(unsigned long*) malloc(sizeof(long)*256);
>   gb_display=XOpenDisplay(NULL);
>   gb_screen_nr=XDefaultScreen(gb_display);
>   gb_rootw=RootWindow(gb_display, gb_screen_nr);
>   gb_xswa.event_mask=0x1FBFFFF;
>   gb_xswa.override_redirect=False;
>   gb_xswa.backing_store=1;
>   gb_window=XCreateWindow(gb_display,gb_rootw,0,0,640,400,0,
>			    DefaultDepth(gb_display, gb_screen_nr),
>			    InputOutput,
>			    XDefaultVisual(gb_display, gb_screen_nr),
>			    CWEventMask|CWOverrideRedirect|CWBackingStore,
>			    &gb_xswa);
>   gb_gcv.foreground=BlackPixel(gb_display, gb_screen_nr);
>   gb_gcv.background=WhitePixel(gb_display, gb_screen_nr);
>   gb_gc=XCreateGC(gb_display,gb_rootw,GCForeground | GCBackground, &gb_gcv);
>   gb_colormap = DefaultColormap(gb_display, gb_screen_nr);
>   gb_pixdefcol[ 0]=gbs_XW_GetColor( 1.0, 1.0, 1.0);  /* Farbe  0: weiss     */
>   gb_pixdefcol[ 1]=gbs_XW_GetColor( 0.0, 0.0, 0.0);  /* Farbe  1: schwarz   */
>   gb_pixdefcol[ 2]=gbs_XW_GetColor( 1.0, 0.0, 0.0);  /* Farbe  2: rot       */
>   gb_pixdefcol[ 3]=gbs_XW_GetColor( 0.0, 0.7, 0.0);  /* Farbe  3: gruen     */
>   gb_pixdefcol[ 4]=gbs_XW_GetColor( 0.0, 0.0, 1.0);  /* Farbe  4: blau      */
>   gb_pixdefcol[ 5]=gbs_XW_GetColor( 0.0, 1.0, 1.0);  /* Farbe  5: cyan      */
>   gb_pixdefcol[ 6]=gbs_XW_GetColor( 1.0, 1.0, 0.0);  /* Farbe  6: gelb      */
>   gb_pixdefcol[ 7]=gbs_XW_GetColor( 1.0, 0.0, 1.0);  /* Farbe  7: magenta   */
>   gb_pixdefcol[ 9]=gbs_XW_GetColor( 0.5, 0.5, 0.5);  /* Farbe  9: dunkelgrau*/
>   gb_pixdefcol[ 8]=gbs_XW_GetColor( 0.8, 0.8, 0.8);  /* Farbe  8: hellgrau  */
>   gb_pixdefcol[10]=gbs_XW_GetColor( 1.0, 0.5, 0.5);  /* Farbe 10: hellrot   */
>   XSetWindowColormap(gb_display, gb_window, gb_colormap);
>   XMapWindow(gb_display, gb_window);
>   XNextEvent(gb_display, &x_event);
>   ih1=0;
>   while(ih1==0) {
>      switch (x_event.type) {
>	 case KeyPress:
>	    printf("x_event.type=%d ",x_event.type);
>	    printf("KeyPress ");
>	    if ((x_event.xkey.keycode==24)&&(x_event.xkey.state==1)) {
>	       ih1=1;
>	       gb_aus=-1;
>	    }
>	    printf("x_event.xkey.keycode=%d ",x_event.xkey.keycode);
>	    printf("x_event.xkey.state=%d ",x_event.xkey.state);
>	    printf("\n");
>	    break;
>	 case KeyRelease:
>	    printf("x_event.type=%d ",x_event.type);
>	    printf("KeyRelease ");
>	    gb_aus++;
>	    if (gb_aus>10) gb_aus=0;
>	    printf("\n");
>	    break;
>      }
>      XNextEvent(gb_display, &x_event);
>   }
>   pthread_exit(a);
>}
>
>
>int main(int argv, char *argc[], char *env[]) {
>   int rc;
>   void *res;
>   XPoint *xpp;
>   int ih1, ih2;
>   rc=pthread_create(&gb_pthread,NULL, gb_thread, (void*)&gb_thread_ret);
>   printf("rc=%d\n",rc);
>   xpp=(XPoint*) malloc(2000*sizeof(XPoint));
>   for (ih2=0; ih2<640; ih2++) xpp[ih2].x=ih2;
>   while(gb_aus>-1) {
>      sleep(1);
>      if (gb_aus!=gb_aus2) {
>	 gb_aus2++;
>	 if (gb_aus2>10) gb_aus2=0;
>	 XSetForeground(gb_display, gb_gc, gb_pixdefcol[gb_aus2]);
>	 for (ih1=0; ih1<400; ih1++) {
>	    for (ih2=0; ih2<640; ih2++) xpp[ih2].y=ih1;
>	    XDrawPoints(gb_display,gb_window, gb_gc,&xpp[0],640,CoordModeOrigin);
>	 }
>      }
>   }
>   rc=pthread_join(gb_pthread, res);
>   free(res);
>   sleep(1);
>   XDestroyWindow(gb_display, gb_window);
>   printf("rc=%d\n",rc);
>   return(0);
>}

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