+++ /dev/null
-/***********************************************************
-* Artsoft Retro-Game Library *
-*----------------------------------------------------------*
-* (c) 1994-2006 Artsoft Entertainment *
-* Holger Schemel *
-* Detmolder Strasse 189 *
-* 33604 Bielefeld *
-* Germany *
-* e-mail: info@artsoft.org *
-*----------------------------------------------------------*
-* x11.c *
-***********************************************************/
-
-#include "system.h"
-#include "pcx.h"
-#include "misc.h"
-#include "setup.h"
-
-
-#if defined(TARGET_X11)
-
-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 */
- X11InitDisplay();
-
- /* set default X11 depth */
- video.default_depth = XDefaultDepth(display, screen);
-}
-
-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()
-{
- XVisualInfo vinfo_template, *vinfo;
- int num_visuals;
- 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));
-
- 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);
- cmap = DefaultColormap(display, screen);
-
- /* 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)
- Error(ERR_EXIT, "X11 display not supported (less than 8 bits per pixel)");
- else if ((depth ==8 && visual->class != PseudoColor) ||
- (depth > 8 && visual->class != TrueColor &&
- visual->class != DirectColor))
- Error(ERR_EXIT, "X11 display not supported (inappropriate visual)");
-}
-
-static DrawWindow *X11InitWindow()
-{
- DrawWindow *new_window = CreateBitmapStruct();
- unsigned int border_width = 4;
- XGCValues gc_values;
- unsigned int gc_valuemask;
- XTextProperty windowName, iconName;
- Pixmap icon_pixmap, iconmask_pixmap;
- unsigned int icon_width, icon_height;
- int icon_hot_x, icon_hot_y;
- XSizeHints size_hints;
- XWMHints wm_hints;
- XClassHint class_hints;
- char *window_name = program.window_title;
- char *icon_name = program.window_title;
- int window_event_mask;
- Atom proto_atom = None, delete_atom = None;
- int screen_width, screen_height;
- int win_xpos, win_ypos;
- unsigned int pen_fg = WhitePixel(display, screen);
- unsigned int pen_bg = BlackPixel(display, screen);
- const int width = video.width, height = video.height;
- int i;
-
- screen_width = XDisplayWidth(display, screen);
- screen_height = XDisplayHeight(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,
- width, height, border_width,
- pen_fg, pen_bg);
-
- proto_atom = XInternAtom(display, "WM_PROTOCOLS", FALSE);
- delete_atom = XInternAtom(display, "WM_DELETE_WINDOW", FALSE);
- if ((proto_atom != None) && (delete_atom != None))
- XChangeProperty(display, new_window->drawable, proto_atom, XA_ATOM, 32,
- PropModePrepend, (unsigned char *) &delete_atom, 1);
-
- if (XReadBitmapFile(display, new_window->drawable,
- getCustomImageFilename(program.x11_icon_filename),
- &icon_width, &icon_height, &icon_pixmap,
- &icon_hot_x, &icon_hot_y) != BitmapSuccess)
- Error(ERR_EXIT, "cannot read icon bitmap file '%s'",
- program.x11_icon_filename);
-
- if (XReadBitmapFile(display, new_window->drawable,
- getCustomImageFilename(program.x11_iconmask_filename),
- &icon_width, &icon_height, &iconmask_pixmap,
- &icon_hot_x, &icon_hot_y) != BitmapSuccess)
- Error(ERR_EXIT, "cannot read icon bitmap file '%s'",
- program.x11_iconmask_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.command_basename;
- class_hints.res_class = program.program_title;
-
- XSetWMProperties(display, new_window->drawable, &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, new_window->drawable, window_event_mask);
-
- /* 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;
- new_window->gc =
- XCreateGC(display, new_window->drawable, gc_valuemask, &gc_values);
-
- /* create GCs for line drawing (black and white) */
- for (i = 0; i < 2; i++)
- {
- gc_values.graphics_exposures = False;
- gc_values.foreground = (i ? pen_fg : pen_bg);
- gc_values.background = pen_bg;
- gc_values.line_width = 4;
- gc_values.line_style = LineSolid;
- gc_values.cap_style = CapRound;
- gc_values.join_style = JoinRound;
-
- gc_valuemask = GCGraphicsExposures | GCForeground | GCBackground |
- GCLineWidth | GCLineStyle | GCCapStyle | GCJoinStyle;
- new_window->line_gc[i] =
- XCreateGC(display, new_window->drawable, gc_valuemask, &gc_values);
- }
-
- 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)
- AllegroZoomBitmap(src_bitmap->drawable, dst_bitmap->drawable,
- src_bitmap->width, src_bitmap->height,
- dst_bitmap->width, dst_bitmap->height);
-#else
- ZoomPixmap(display, src_bitmap->gc,
- src_bitmap->drawable, dst_bitmap->drawable,
- src_bitmap->width, src_bitmap->height,
- dst_bitmap->width, dst_bitmap->height);
-#endif
-}
-
-static void SetImageDimensions(Bitmap *bitmap)
-{
-#if defined(TARGET_ALLEGRO)
- BITMAP *allegro_bitmap = (BITMAP *)(bitmap->drawable);
-
- bitmap->width = allegro_bitmap->w;
- bitmap->height = allegro_bitmap->h;
-#else
- Window root;
- int x, y;
- unsigned int border_width, depth;
-
- XGetGeometry(display, bitmap->drawable, &root, &x, &y,
- &bitmap->width, &bitmap->height, &border_width, &depth);
-#endif
-}
-
-Bitmap *X11LoadImage(char *filename)
-{
- Bitmap *new_bitmap = CreateBitmapStruct();
- char *error = "Read_PCX_to_Pixmap(): %s '%s'";
- int pcx_err;
- XGCValues clip_gc_values;
- unsigned int clip_gc_valuemask;
-
- pcx_err = Read_PCX_to_Pixmap(display, window->drawable, window->gc, filename,
- &new_bitmap->drawable, &new_bitmap->clip_mask);
- switch(pcx_err)
- {
- case PCX_Success:
- break;
- case PCX_OpenFailed:
- SetError(error, "cannot open PCX file", filename);
- return NULL;
- case PCX_ReadFailed:
- SetError(error, "cannot read PCX file", filename);
- return NULL;
- case PCX_FileInvalid:
- SetError(error, "invalid PCX file", filename);
- return NULL;
- case PCX_NoMemory:
- SetError(error, "not enough memory for PCX file", filename);
- return NULL;
- case PCX_ColorFailed:
- SetError(error, "cannot get colors for PCX file", filename);
- return NULL;
- case PCX_OtherError:
- /* this should already have called SetError() */
- return NULL;
- default:
- SetError(error, "unknown error reading PCX file", filename);
- return NULL;
- }
-
- if (!new_bitmap->drawable)
- {
- SetError("X11LoadImage(): cannot get graphics for '%s'", filename);
- return NULL;
- }
-
- if (!new_bitmap->clip_mask)
- {
- SetError("X11LoadImage(): cannot get clipmask for '%s'", filename);
- return NULL;
- }
-
- clip_gc_values.graphics_exposures = False;
- clip_gc_values.clip_mask = new_bitmap->clip_mask;
- clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
- new_bitmap->stored_clip_gc = XCreateGC(display, window->drawable,
- clip_gc_valuemask, &clip_gc_values);
-
- /* set GraphicContext inheritated from Window */
- new_bitmap->gc = window->gc;
-
- /* set image width and height */
- SetImageDimensions(new_bitmap);
-
- return new_bitmap;
-}
-
-void X11CreateBitmapContent(Bitmap *new_bitmap,
- int width, int height, int depth)
-{
- Pixmap pixmap;
-
- if ((pixmap = XCreatePixmap(display, window->drawable, width, height, depth))
- == None)
- Error(ERR_EXIT, "cannot create pixmap");
-
- new_bitmap->drawable = pixmap;
-
- if (window == NULL)
- Error(ERR_EXIT, "Window GC needed for Bitmap -- create Window first");
-
- new_bitmap->gc = window->gc;
-
- new_bitmap->line_gc[0] = window->line_gc[0];
- new_bitmap->line_gc[1] = window->line_gc[1];
-}
-
-void X11FreeBitmapPointers(Bitmap *bitmap)
-{
- /* The X11 version seems to have a memory leak here -- although
- "XFreePixmap()" is called, the corresponding memory seems not
- to be freed (according to "ps"). The SDL version apparently
- does not have this problem. */
-
- if (bitmap->drawable)
- XFreePixmap(display, bitmap->drawable);
- if (bitmap->clip_mask)
- XFreePixmap(display, bitmap->clip_mask);
- if (bitmap->stored_clip_gc)
- XFreeGC(display, bitmap->stored_clip_gc);
- /* the other GCs are only pointers to GCs used elsewhere */
- bitmap->drawable = None;
- bitmap->clip_mask = None;
- bitmap->stored_clip_gc = None;
-}
-
-void X11CopyArea(Bitmap *src_bitmap, Bitmap *dst_bitmap,
- int src_x, int src_y, int width, int height,
- int dst_x, int dst_y, int mask_mode)
-{
- XCopyArea(display, src_bitmap->drawable, dst_bitmap->drawable,
- (mask_mode == BLIT_MASKED ? src_bitmap->clip_gc : dst_bitmap->gc),
- src_x, src_y, width, height, dst_x, dst_y);
-}
-
-void X11FillRectangle(Bitmap *bitmap, int x, int y,
- int width, int height, Pixel color)
-{
- XSetForeground(display, bitmap->gc, color);
- XFillRectangle(display, bitmap->drawable, bitmap->gc, x, y, width, height);
-}
-
-void X11FadeRectangle(Bitmap *bitmap_cross, int x, int y, int width, int height,
- int fade_mode, int fade_delay, int post_delay,
- void (*draw_border_function)(void))
-{
- /* fading currently not supported -- simply copy backbuffer to screen */
-
- if (fade_mode == FADE_MODE_FADE_OUT)
- X11FillRectangle(backbuffer, x, y, width, height, BLACK_PIXEL);
-
- if (draw_border_function != NULL)
- draw_border_function();
-
- X11CopyArea(backbuffer, window, x, y, width, height, x, y, BLIT_OPAQUE);
-
- /* as we currently cannot use the fade delay, also do not use post delay */
-}
-
-void X11DrawSimpleLine(Bitmap *bitmap, int from_x, int from_y,
- int to_x, int to_y, Pixel color)
-{
- XSetForeground(display, bitmap->gc, color);
- XDrawLine(display, bitmap->drawable, bitmap->gc, from_x, from_y, to_x, to_y);
-}
-
-Pixel X11GetPixel(Bitmap *bitmap, int x, int y)
-{
- XImage *pixel_image;
- Pixel pixel_value;
-
- pixel_image = XGetImage(display, bitmap->drawable, x, y, 1, 1,
- AllPlanes, ZPixmap);
- pixel_value = XGetPixel(pixel_image, 0, 0);
-
- X11DestroyImage(pixel_image);
-
- return pixel_value;
-}
-
-#if defined(TARGET_X11_NATIVE)
-Pixel X11GetPixelFromRGB(unsigned int color_r, unsigned int color_g,
- unsigned int color_b)
-{
- XColor xcolor;
- Pixel pixel;
-
- xcolor.flags = DoRed | DoGreen | DoBlue;
- xcolor.red = (color_r << 8);
- xcolor.green = (color_g << 8);
- xcolor.blue = (color_b << 8);
-
- XAllocColor(display, cmap, &xcolor);
- pixel = xcolor.pixel;
-
- return pixel;
-}
-#endif /* TARGET_X11_NATIVE */
-
-void X11DestroyImage(XImage *ximage)
-{
-#if defined(TARGET_X11_NATIVE)
- /* this seems to be needed for OS/2, but does not hurt on other platforms */
- if (ximage->data != NULL)
- {
- free(ximage->data);
- ximage->data = NULL;
- }
-#endif /* TARGET_X11_NATIVE */
-
- XDestroyImage(ximage);
-}
-
-
-/* ------------------------------------------------------------------------- */
-/* mouse pointer functions */
-/* ------------------------------------------------------------------------- */
-
-#if defined(TARGET_X11_NATIVE)
-
-static Cursor create_cursor(struct MouseCursorInfo *cursor_info)
-{
- Pixmap pixmap_data, pixmap_mask;
- XColor color_fg, color_bg;
- Cursor cursor;
-
- /* shape and mask are single plane pixmaps */
- pixmap_data =
- XCreatePixmapFromBitmapData(display, window->drawable, cursor_info->data,
- cursor_info->width, cursor_info->height,
- 1, 0, 1);
- pixmap_mask =
- XCreatePixmapFromBitmapData(display, window->drawable, cursor_info->mask,
- cursor_info->width, cursor_info->height,
- 1, 0, 1);
-
- XParseColor(display, cmap, "black", &color_fg);
- XParseColor(display, cmap, "white", &color_bg);
-
- cursor = XCreatePixmapCursor(display, pixmap_data, pixmap_mask,
- &color_fg, &color_bg,
- cursor_info->hot_x, cursor_info->hot_y);
-
- return cursor;
-}
-
-void X11SetMouseCursor(struct MouseCursorInfo *cursor_info)
-{
- static struct MouseCursorInfo *last_cursor_info = NULL;
- static Cursor cursor_default = None;
- static Cursor cursor_current = None;
-
- if (cursor_info != NULL && cursor_info != last_cursor_info)
- {
- cursor_current = create_cursor(cursor_info);
- last_cursor_info = cursor_info;
- }
-
- XDefineCursor(display, window->drawable,
- cursor_info ? cursor_current : cursor_default);
-}
-#endif /* TARGET_X11_NATIVE */
-
-#endif /* TARGET_X11 */
projects / rocksndiamonds.git / blobdiff