1 /***********************************************************
2 * Artsoft Retro-Game Library *
3 *----------------------------------------------------------*
4 * (c) 1994-2002 Artsoft Entertainment *
6 * Detmolder Strasse 189 *
9 * e-mail: info@artsoft.org *
10 *----------------------------------------------------------*
12 ***********************************************************/
20 #if defined(TARGET_X11)
22 static void X11InitDisplay();
23 static DrawWindow *X11InitWindow();
25 inline void X11InitVideoDisplay(void)
27 /* initialize X11 video */
30 /* set default X11 depth */
31 video.default_depth = XDefaultDepth(display, screen);
34 inline void X11InitVideoBuffer(DrawBuffer **backbuffer, DrawWindow **window)
36 *window = X11InitWindow();
38 XMapWindow(display, (*window)->drawable);
41 /* create additional (off-screen) buffer for double-buffering */
42 *backbuffer = CreateBitmap(video.width, video.height, video.depth);
45 static void X11InitDisplay()
47 #if !defined(PLATFORM_MSDOS)
48 XVisualInfo vinfo_template, *vinfo;
53 /* connect to X server */
54 if (!(display = XOpenDisplay(options.display_name)))
55 Error(ERR_EXIT, "cannot connect to X server %s",
56 XDisplayName(options.display_name));
58 screen = DefaultScreen(display);
59 visual = DefaultVisual(display, screen);
60 depth = DefaultDepth(display, screen);
61 cmap = DefaultColormap(display, screen);
63 #if !defined(PLATFORM_MSDOS)
64 /* look for good enough visual */
65 vinfo_template.screen = screen;
66 vinfo_template.class = (depth == 8 ? PseudoColor : TrueColor);
67 vinfo_template.depth = depth;
68 if ((vinfo = XGetVisualInfo(display, VisualScreenMask | VisualClassMask |
69 VisualDepthMask, &vinfo_template, &num_visuals)))
71 visual = vinfo->visual;
75 /* got appropriate visual? */
77 Error(ERR_EXIT, "X11 display not supported (less than 8 bits per pixel)");
78 else if ((depth ==8 && visual->class != PseudoColor) ||
79 (depth > 8 && visual->class != TrueColor &&
80 visual->class != DirectColor))
81 Error(ERR_EXIT, "X11 display not supported (inappropriate visual)");
82 #endif /* !PLATFORM_MSDOS */
85 static DrawWindow *X11InitWindow()
87 DrawWindow *new_window = CreateBitmapStruct();
88 unsigned int border_width = 4;
90 unsigned long gc_valuemask;
91 #if !defined(PLATFORM_MSDOS)
92 XTextProperty windowName, iconName;
93 Pixmap icon_pixmap, iconmask_pixmap;
94 unsigned int icon_width, icon_height;
95 int icon_hot_x, icon_hot_y;
97 char icon_filename[256];
99 XSizeHints size_hints;
101 XClassHint class_hints;
102 char *window_name = program.window_title;
103 char *icon_name = program.window_title;
104 long window_event_mask;
105 Atom proto_atom = None, delete_atom = None;
107 int screen_width, screen_height;
108 int win_xpos, win_ypos;
109 unsigned long pen_fg = WhitePixel(display,screen);
110 unsigned long pen_bg = BlackPixel(display,screen);
111 const int width = video.width, height = video.height;
115 #if !defined(PLATFORM_MSDOS)
116 static struct IconFileInfo icon_pic =
124 screen_width = XDisplayWidth(display, screen);
125 screen_height = XDisplayHeight(display, screen);
127 win_xpos = (screen_width - width) / 2;
128 win_ypos = (screen_height - height) / 2;
130 new_window->drawable = XCreateSimpleWindow(display,
131 RootWindow(display, screen),
133 width, height, border_width,
136 #if !defined(PLATFORM_MSDOS)
137 proto_atom = XInternAtom(display, "WM_PROTOCOLS", FALSE);
138 delete_atom = XInternAtom(display, "WM_DELETE_WINDOW", FALSE);
139 if ((proto_atom != None) && (delete_atom != None))
140 XChangeProperty(display, new_window->drawable, proto_atom, XA_ATOM, 32,
141 PropModePrepend, (unsigned char *) &delete_atom, 1);
144 sprintf(icon_filename, "%s/%s", options.graphics_directory,
145 icon_pic.picture_filename);
147 if (XReadBitmapFile(display, new_window->drawable,
148 getCustomImageFilename(program.x11_icon_filename),
149 &icon_width, &icon_height, &icon_pixmap,
150 &icon_hot_x, &icon_hot_y) != BitmapSuccess)
151 Error(ERR_EXIT, "cannot read icon bitmap file '%s'",
152 program.x11_icon_filename);
155 sprintf(icon_filename, "%s/%s", options.graphics_directory,
156 icon_pic.picturemask_filename);
158 if (XReadBitmapFile(display, new_window->drawable,
159 getCustomImageFilename(program.x11_iconmask_filename),
160 &icon_width, &icon_height, &iconmask_pixmap,
161 &icon_hot_x, &icon_hot_y) != BitmapSuccess)
162 Error(ERR_EXIT, "cannot read icon bitmap file '%s'",
163 program.x11_iconmask_filename);
165 size_hints.width = size_hints.min_width = size_hints.max_width = width;
166 size_hints.height = size_hints.min_height = size_hints.max_height = height;
167 size_hints.flags = PSize | PMinSize | PMaxSize;
169 if (win_xpos || win_ypos)
171 size_hints.x = win_xpos;
172 size_hints.y = win_ypos;
173 size_hints.flags |= PPosition;
176 if (!XStringListToTextProperty(&window_name, 1, &windowName))
177 Error(ERR_EXIT, "structure allocation for windowName failed");
179 if (!XStringListToTextProperty(&icon_name, 1, &iconName))
180 Error(ERR_EXIT, "structure allocation for iconName failed");
182 wm_hints.initial_state = NormalState;
183 wm_hints.input = True;
184 wm_hints.icon_pixmap = icon_pixmap;
185 wm_hints.icon_mask = iconmask_pixmap;
186 wm_hints.flags = StateHint | IconPixmapHint | IconMaskHint | InputHint;
188 class_hints.res_name = program.command_basename;
189 class_hints.res_class = program.program_title;
191 XSetWMProperties(display, new_window->drawable, &windowName, &iconName,
192 NULL, 0, &size_hints, &wm_hints,
195 XFree(windowName.value);
196 XFree(iconName.value);
198 /* Select event types wanted */
200 ExposureMask | StructureNotifyMask | FocusChangeMask |
201 ButtonPressMask | ButtonReleaseMask | PointerMotionMask |
202 PointerMotionHintMask | KeyPressMask | KeyReleaseMask;
204 XSelectInput(display, new_window->drawable, window_event_mask);
207 /* create GC for drawing with window depth and background color (black) */
208 gc_values.graphics_exposures = False;
209 gc_values.foreground = pen_bg;
210 gc_values.background = pen_bg;
211 gc_valuemask = GCGraphicsExposures | GCForeground | GCBackground;
213 XCreateGC(display, new_window->drawable, gc_valuemask, &gc_values);
215 /* create GCs for line drawing (black and white) */
218 gc_values.graphics_exposures = False;
219 gc_values.foreground = (i ? pen_fg : pen_bg);
220 gc_values.background = pen_bg;
221 gc_values.line_width = 4;
222 gc_values.line_style = LineSolid;
223 gc_values.cap_style = CapRound;
224 gc_values.join_style = JoinRound;
226 gc_valuemask = GCGraphicsExposures | GCForeground | GCBackground |
227 GCLineWidth | GCLineStyle | GCCapStyle | GCJoinStyle;
228 new_window->line_gc[i] =
229 XCreateGC(display, new_window->drawable, gc_valuemask, &gc_values);
235 static void SetImageDimensions(Bitmap *bitmap)
237 #if defined(TARGET_ALLEGRO)
238 BITMAP *allegro_bitmap = (BITMAP *)(bitmap->drawable);
240 bitmap->width = allegro_bitmap->w;
241 bitmap->height = allegro_bitmap->h;
245 unsigned int border_width, depth;
247 XGetGeometry(display, bitmap->drawable, &root, &x, &y,
248 &bitmap->width, &bitmap->height, &border_width, &depth);
252 Bitmap *X11LoadImage(char *filename)
254 Bitmap *new_bitmap = CreateBitmapStruct();
255 char *error = "Read_PCX_to_Pixmap(): %s '%s'";
258 pcx_err = Read_PCX_to_Pixmap(display, window->drawable, window->gc, filename,
259 &new_bitmap->drawable, &new_bitmap->clip_mask);
265 SetError(error, "cannot open PCX file", filename);
268 SetError(error, "cannot read PCX file", filename);
270 case PCX_FileInvalid:
271 SetError(error, "invalid PCX file", filename);
274 SetError(error, "not enough memory for PCX file", filename);
276 case PCX_ColorFailed:
277 SetError(error, "cannot get colors for PCX file", filename);
280 /* this should already have called SetError() */
283 SetError(error, "unknown error reading PCX file", filename);
287 if (!new_bitmap->drawable)
289 SetError("X11LoadImage(): cannot get graphics for '%s'", filename);
293 if (!new_bitmap->clip_mask)
295 SetError("X11LoadImage(): cannot get clipmask for '%s'", filename);
299 /* set GraphicContext inheritated from Window */
300 new_bitmap->gc = window->gc;
302 /* set image width and height */
303 SetImageDimensions(new_bitmap);
308 #endif /* TARGET_X11 */