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Diffstat (limited to 'nx-X11/lib/Xmu/LookupCmap.c')
-rw-r--r-- | nx-X11/lib/Xmu/LookupCmap.c | 325 |
1 files changed, 0 insertions, 325 deletions
diff --git a/nx-X11/lib/Xmu/LookupCmap.c b/nx-X11/lib/Xmu/LookupCmap.c deleted file mode 100644 index e7d7008e5..000000000 --- a/nx-X11/lib/Xmu/LookupCmap.c +++ /dev/null @@ -1,325 +0,0 @@ -/* $Xorg: LookupCmap.c,v 1.4 2001/02/09 02:03:53 xorgcvs Exp $ */ - -/* - -Copyright 1989, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of The Open Group shall not be -used in advertising or otherwise to promote the sale, use or other dealings -in this Software without prior written authorization from The Open Group. - -*/ -/* $XFree86: xc/lib/Xmu/LookupCmap.c,v 1.7 2001/07/25 15:04:50 dawes Exp $ */ - -/* - * Author: Donna Converse, MIT X Consortium - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include <stdio.h> -#include <X11/Xlib.h> -#include <X11/Xatom.h> -#include <X11/Xutil.h> -#include <X11/Xmu/StdCmap.h> -#include <stdlib.h> - -/* - * Prototypes - */ -static Status lookup(Display*, int, VisualID, Atom, XStandardColormap*, Bool); - -/* - * To create a standard colormap if one does not currently exist, or - * replace the currently existing standard colormap, use - * XmuLookupStandardColormap(). - * - * Given a screen, a visual, and a property, XmuLookupStandardColormap() - * will determine the best allocation for the property under the specified - * visual, and determine the whether to create a new colormap or to use - * the default colormap of the screen. It will call XmuStandardColormap() - * to create the standard colormap. - * - * If replace is true, any previous definition of the property will be - * replaced. If retain is true, the property and the colormap will be - * made permanent for the duration of the server session. However, - * pre-existing property definitions which are not replaced cannot be made - * permanent by a call to XmuLookupStandardColormap(); a request to retain - * resources pertains to newly created resources. - * - * Returns 0 on failure, non-zero on success. A request to create a - * standard colormap upon a visual which cannot support such a map is - * considered a failure. An example of this would be requesting any - * standard colormap property on a monochrome visual, or, requesting an - * RGB_BEST_MAP on a display whose colormap size is 16. - */ - -Status -XmuLookupStandardColormap(Display *dpy, int screen, VisualID visualid, - unsigned int depth, Atom property, - Bool replace, Bool retain) - /* - * dpy - specifies X server connection - * screen - specifies screen of display - * visualid - specifies the visual type - * depth - specifies the visual type - * property - a standard colormap property - * replace - specifies whether to replace - * retain - specifies whether to retain - */ -{ - Display *odpy; /* original display connection */ - XStandardColormap *colormap; - XVisualInfo vinfo_template, *vinfo; /* visual */ - long vinfo_mask; - unsigned long r_max, g_max, b_max; /* allocation */ - int count; - Colormap cmap; /* colormap ID */ - Status status = 0; - - - /* Match the requested visual */ - - vinfo_template.visualid = visualid; - vinfo_template.screen = screen; - vinfo_template.depth = depth; - vinfo_mask = VisualIDMask | VisualScreenMask | VisualDepthMask; - if ((vinfo = XGetVisualInfo(dpy, vinfo_mask, &vinfo_template, &count)) == - NULL) - return 0; - - /* Monochrome visuals have no standard maps */ - - if (vinfo->colormap_size <= 2) { - XFree((char *) vinfo); - return 0; - } - - /* If the requested property already exists on this screen, and, - * if the replace flag has not been set to true, return success. - * lookup() will remove a pre-existing map if replace is true. - */ - - if (lookup(dpy, screen, visualid, property, (XStandardColormap *) NULL, - replace) && !replace) { - XFree((char *) vinfo); - return 1; - } - - /* Determine the best allocation for this property under the requested - * visualid and depth, and determine whether or not to use the default - * colormap of the screen. - */ - - if (!XmuGetColormapAllocation(vinfo, property, &r_max, &g_max, &b_max)) { - XFree((char *) vinfo); - return 0; - } - - cmap = (property == XA_RGB_DEFAULT_MAP && - visualid == XVisualIDFromVisual(DefaultVisual(dpy, screen))) - ? DefaultColormap(dpy, screen) : None; - - /* If retaining resources, open a new connection to the same server */ - - if (retain) { - odpy = dpy; - if ((dpy = XOpenDisplay(XDisplayString(odpy))) == NULL) { - XFree((char *) vinfo); - return 0; - } - } - - /* Create the standard colormap */ - - colormap = XmuStandardColormap(dpy, screen, visualid, depth, property, - cmap, r_max, g_max, b_max); - - /* Set the standard colormap property */ - - if (colormap) { - XGrabServer(dpy); - - if (lookup(dpy, screen, visualid, property, colormap, replace) && - !replace) { - /* Someone has defined the property since we last looked. - * Since we will not replace it, release our own resources. - * If this is the default map, our allocations will be freed - * when this connection closes. - */ - if (colormap->killid == ReleaseByFreeingColormap) - XFreeColormap(dpy, colormap->colormap); - } - else if (retain) { - XSetCloseDownMode(dpy, RetainPermanent); - } - XUngrabServer(dpy); - XFree((char *) colormap); - status = 1; - } - - if (retain) - XCloseDisplay(dpy); - XFree((char *) vinfo); - return status; -} - -/***************************************************************************/ - -/* Lookup a standard colormap property. If the property is RGB_DEFAULT_MAP, - * the visualid is used to determine whether the indicated standard colormap - * exists. If the map exists and replace is true, delete the resources used - * by the map and remove the property. Return true if the map exists, - * or did exist and was deleted; return false if the map was not found. - * - * Note that this is not the way that a Status return is normally used. - * - * If new is not NULL, new points to an XStandardColormap structure which - * describes a standard colormap of the specified property. It will be made - * a standard colormap of the screen if none already exists, or if replace - * is true. - */ - -static Status -lookup(Display *dpy, int screen, VisualID visualid, Atom property, - XStandardColormap *cnew, Bool replace) - /* - * dpy - specifies display connection - * screen - specifies screen number - * visualid - specifies visualid for std map - * property - specifies colormap property name - * cnew - specifies a standard colormap - * replace - specifies whether to replace - */ -{ - register int i; - int count; - XStandardColormap *stdcmaps, *s; - Window win = RootWindow(dpy, screen); - - /* The property does not already exist */ - - if (! XGetRGBColormaps(dpy, win, &stdcmaps, &count, property)) { - if (cnew) - XSetRGBColormaps(dpy, win, cnew, 1, property); - return 0; - } - - /* The property exists and is not describing the RGB_DEFAULT_MAP */ - - if (property != XA_RGB_DEFAULT_MAP) { - if (replace) { - XmuDeleteStandardColormap(dpy, screen, property); - if (cnew) - XSetRGBColormaps(dpy, win, cnew, 1, property); - } - XFree((char *)stdcmaps); - return 1; - } - - /* The property exists and is RGB_DEFAULT_MAP */ - - for (i=0, s=stdcmaps; (i < count) && (s->visualid != visualid); i++, s++) - ; - - /* No RGB_DEFAULT_MAP property matches the given visualid */ - - if (i == count) { - if (cnew) { - XStandardColormap *m, *maps; - - s = (XStandardColormap *) malloc((unsigned) ((count+1) * sizeof - (XStandardColormap))); - - for (i = 0, m = s, maps = stdcmaps; i < count; i++, m++, maps++) { - m->colormap = maps->colormap; - m->red_max = maps->red_max; - m->red_mult = maps->red_mult; - m->green_max = maps->green_max; - m->green_mult = maps->green_mult; - m->blue_max = maps->blue_max; - m->blue_mult = maps->blue_mult; - m->base_pixel = maps->base_pixel; - m->visualid = maps->visualid; - m->killid = maps->killid; - } - m->colormap = cnew->colormap; - m->red_max = cnew->red_max; - m->red_mult = cnew->red_mult; - m->green_max = cnew->green_max; - m->green_mult = cnew->green_mult; - m->blue_max = cnew->blue_max; - m->blue_mult = cnew->blue_mult; - m->base_pixel = cnew->base_pixel; - m->visualid = cnew->visualid; - m->killid = cnew->killid; - - XSetRGBColormaps(dpy, win, s, ++count, property); - free((char *) s); - } - XFree((char *) stdcmaps); - return 0; - } - - /* Found an RGB_DEFAULT_MAP property with a matching visualid */ - - if (replace) { - /* Free old resources first - we may need them, particularly in - * the default colormap of the screen. However, because of this, - * it is possible that we will destroy the old resource and fail - * to create a new one if XmuStandardColormap() fails. - */ - - if (count == 1) { - XmuDeleteStandardColormap(dpy, screen, property); - if (cnew) - XSetRGBColormaps(dpy, win, cnew, 1, property); - } - else { - XStandardColormap *map; - - /* s still points to the matching standard colormap */ - - if (s->killid == ReleaseByFreeingColormap) { - if ((s->colormap != None) && - (s->colormap != DefaultColormap(dpy, screen))) - XFreeColormap(dpy, s->colormap); - } - else if (s->killid != None) - XKillClient(dpy, s->killid); - - map = (cnew) ? cnew : stdcmaps + --count; - - s->colormap = map->colormap; - s->red_max = map->red_max; - s->red_mult = map->red_mult; - s->green_max = map->green_max; - s->green_mult = map->green_mult; - s->blue_max = map->blue_max; - s->blue_mult = map->blue_mult; - s->visualid = map->visualid; - s->killid = map->killid; - - XSetRGBColormaps(dpy, win, stdcmaps, count, property); - } - } - XFree((char *) stdcmaps); - return 1; -} |