static void X11InitDisplay();
static DrawWindow *X11InitWindow();
+static int X11DebugErrorHandler(Display *display, XErrorEvent *event)
+{
+ int x = 0;
+
+ return 1 / x; /* !!! crash program to give backtrace in gdb !!! */
+}
+
void X11InitVideoDisplay(void)
{
/* initialize X11 video */
void X11InitVideoBuffer(DrawBuffer **backbuffer, DrawWindow **window)
{
+ if (*window != NULL)
+ X11CloseWindow(*window);
+
*window = X11InitWindow();
XMapWindow(display, (*window)->drawable);
+
FlushDisplay();
/* create additional (off-screen) buffer for double-buffering */
+#if 1
+ ReCreateBitmap(backbuffer, video.width, video.height, video.depth);
+#else
*backbuffer = CreateBitmap(video.width, video.height, video.depth);
+#endif
}
static void X11InitDisplay()
Error(ERR_EXIT, "cannot connect to X server %s",
XDisplayName(options.display_name));
+ if (options.debug_x11_sync)
+ {
+ Error(ERR_WARN, "running in X11 synchronous mode (debug only)");
+
+ XSynchronize(display, True);
+ XSetErrorHandler(X11DebugErrorHandler);
+ }
+
screen = DefaultScreen(display);
visual = DefaultVisual(display, screen);
depth = DefaultDepth(display, screen);
win_xpos = (screen_width - width) / 2;
win_ypos = (screen_height - height) / 2;
+ new_window->width = width;
+ new_window->height = height;
+
new_window->drawable = XCreateSimpleWindow(display,
RootWindow(display, screen),
win_xpos, win_ypos,
return new_window;
}
+void X11CloseWindow(DrawWindow *window)
+{
+ if (window->drawable)
+ {
+ XUnmapWindow(display, window->drawable);
+ XDestroyWindow(display, window->drawable);
+ }
+
+ if (window->gc)
+ XFreeGC(display, window->gc);
+
+ free(window);
+}
+
void X11ZoomBitmap(Bitmap *src_bitmap, Bitmap *dst_bitmap)
{
#if defined(TARGET_ALLEGRO)