X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Fx11.c;h=3440210627907698c0c4454d5c74c29bc9421a01;hb=a8b2caa1d373c84c1b3fc2f615370c2a319051ca;hp=b91c410d7abb01a6dc4471d80d2bbf1e4f561435;hpb=52189f4b3b797e08699f67880198b585320cf8bf;p=rocksndiamonds.git

diff --git a/src/x11.c b/src/x11.c
index b91c410d..34402106 100644
--- a/src/x11.c
+++ b/src/x11.c
@@ -12,6 +12,195 @@
 *  x11.c                                                   *
 ***********************************************************/
 
-#ifdef USE_X11_LIBRARY
+#ifdef TARGET_X11
 
-#endif /* USE_X11_LIBRARY */
+#include "main.h"
+#include "misc.h"
+
+struct IconFileInfo
+{
+  char *picture_filename;
+  char *picturemask_filename;
+};
+
+static void X11InitDisplay()
+{
+#ifndef MSDOS
+  XVisualInfo vinfo_template, *vinfo;
+  int num_visuals;
+#endif
+  unsigned int depth;
+
+  /* connect to X server */
+  if (!(display = XOpenDisplay(options.display_name)))
+    Error(ERR_EXIT, "cannot connect to X server %s",
+	  XDisplayName(options.display_name));
+
+  screen = DefaultScreen(display);
+  visual = DefaultVisual(display, screen);
+  depth  = DefaultDepth(display, screen);
+  cmap   = DefaultColormap(display, screen);
+
+#ifndef MSDOS
+  /* look for good enough visual */
+  vinfo_template.screen = screen;
+  vinfo_template.class = (depth == 8 ? PseudoColor : TrueColor);
+  vinfo_template.depth = depth;
+  if ((vinfo = XGetVisualInfo(display, VisualScreenMask | VisualClassMask |
+			      VisualDepthMask, &vinfo_template, &num_visuals)))
+  {
+    visual = vinfo->visual;
+    XFree((void *)vinfo);
+  }
+
+  /* got appropriate visual? */
+  if (depth < 8)
+  {
+    printf("Sorry, displays with less than 8 bits per pixel not supported.\n");
+    exit(-1);
+  }
+  else if ((depth ==8 && visual->class != PseudoColor) ||
+	   (depth > 8 && visual->class != TrueColor &&
+	    visual->class != DirectColor))
+  {
+    printf("Sorry, cannot get appropriate visual.\n");
+    exit(-1);
+  }
+#endif /* !MSDOS */
+}
+
+static DrawWindow X11InitWindow()
+{
+  Window window;
+  unsigned int border_width = 4;
+  XGCValues gc_values;
+  unsigned long gc_valuemask;
+#ifndef MSDOS
+  XTextProperty windowName, iconName;
+  Pixmap icon_pixmap, iconmask_pixmap;
+  unsigned int icon_width, icon_height;
+  int icon_hot_x, icon_hot_y;
+  char icon_filename[256];
+  XSizeHints size_hints;
+  XWMHints wm_hints;
+  XClassHint class_hints;
+  char *window_name = WINDOW_TITLE_STRING;
+  char *icon_name = WINDOW_TITLE_STRING;
+  long window_event_mask;
+  Atom proto_atom = None, delete_atom = None;
+#endif
+  int screen_width, screen_height;
+  int win_xpos = WIN_XPOS, win_ypos = WIN_YPOS;
+  unsigned long pen_fg = WhitePixel(display,screen);
+  unsigned long pen_bg = BlackPixel(display,screen);
+  const int width = WIN_XSIZE, height = WIN_YSIZE;
+
+#ifndef MSDOS
+  static struct IconFileInfo icon_pic =
+  {
+    "rocks_icon.xbm",
+    "rocks_iconmask.xbm"
+  };
+#endif
+
+  screen_width = XDisplayWidth(display, screen);
+  screen_height = XDisplayHeight(display, screen);
+
+  win_xpos = (screen_width - width) / 2;
+  win_ypos = (screen_height - height) / 2;
+
+  window = XCreateSimpleWindow(display, RootWindow(display, screen),
+			       win_xpos, win_ypos, width, height, border_width,
+			       pen_fg, pen_bg);
+
+#ifndef MSDOS
+  proto_atom = XInternAtom(display, "WM_PROTOCOLS", FALSE);
+  delete_atom = XInternAtom(display, "WM_DELETE_WINDOW", FALSE);
+  if ((proto_atom != None) && (delete_atom != None))
+    XChangeProperty(display, window, proto_atom, XA_ATOM, 32,
+		    PropModePrepend, (unsigned char *) &delete_atom, 1);
+
+  sprintf(icon_filename, "%s/%s/%s",
+	  options.ro_base_directory, GRAPHICS_DIRECTORY,
+	  icon_pic.picture_filename);
+  XReadBitmapFile(display,window,icon_filename,
+		  &icon_width,&icon_height,
+		  &icon_pixmap,&icon_hot_x,&icon_hot_y);
+  if (!icon_pixmap)
+    Error(ERR_EXIT, "cannot read icon bitmap file '%s'", icon_filename);
+
+  sprintf(icon_filename, "%s/%s/%s",
+	  options.ro_base_directory, GRAPHICS_DIRECTORY,
+	  icon_pic.picturemask_filename);
+  XReadBitmapFile(display,window,icon_filename,
+		  &icon_width,&icon_height,
+		  &iconmask_pixmap,&icon_hot_x,&icon_hot_y);
+  if (!iconmask_pixmap)
+    Error(ERR_EXIT, "cannot read icon bitmap file '%s'", icon_filename);
+
+  size_hints.width  = size_hints.min_width  = size_hints.max_width  = width;
+  size_hints.height = size_hints.min_height = size_hints.max_height = height;
+  size_hints.flags = PSize | PMinSize | PMaxSize;
+
+  if (win_xpos || win_ypos)
+  {
+    size_hints.x = win_xpos;
+    size_hints.y = win_ypos;
+    size_hints.flags |= PPosition;
+  }
+
+  if (!XStringListToTextProperty(&window_name, 1, &windowName))
+    Error(ERR_EXIT, "structure allocation for windowName failed");
+
+  if (!XStringListToTextProperty(&icon_name, 1, &iconName))
+    Error(ERR_EXIT, "structure allocation for iconName failed");
+
+  wm_hints.initial_state = NormalState;
+  wm_hints.input = True;
+  wm_hints.icon_pixmap = icon_pixmap;
+  wm_hints.icon_mask = iconmask_pixmap;
+  wm_hints.flags = StateHint | IconPixmapHint | IconMaskHint | InputHint;
+
+  class_hints.res_name = program_name;
+  class_hints.res_class = "Rocks'n'Diamonds";
+
+  XSetWMProperties(display, window, &windowName, &iconName, 
+		   NULL, 0, &size_hints, &wm_hints, 
+		   &class_hints);
+
+  XFree(windowName.value);
+  XFree(iconName.value);
+
+  /* Select event types wanted */
+  window_event_mask =
+    ExposureMask | StructureNotifyMask | FocusChangeMask |
+    ButtonPressMask | ButtonReleaseMask | PointerMotionMask |
+    PointerMotionHintMask | KeyPressMask | KeyReleaseMask;
+
+  XSelectInput(display, window, window_event_mask);
+#endif
+
+  /* create GC for drawing with window depth and background color (black) */
+  gc_values.graphics_exposures = False;
+  gc_values.foreground = pen_bg;
+  gc_values.background = pen_bg;
+  gc_valuemask = GCGraphicsExposures | GCForeground | GCBackground;
+  gc = XCreateGC(display, window, gc_valuemask, &gc_values);
+
+  return window;
+}
+
+inline void X11InitBufferedDisplay(DrawBuffer *backbuffer, DrawWindow *window)
+{
+  X11InitDisplay();
+  *window = X11InitWindow();
+
+  XMapWindow(display, *window);
+  FlushDisplay();
+
+  /* create additional buffer for double-buffering */
+  *backbuffer = CreateBitmap(WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH);
+  pix[PIX_DB_BACK] = *backbuffer;	/* 'backbuffer' is off-screen buffer */
+}
+
+#endif /* TARGET_X11 */