aboutsummaryrefslogtreecommitdiff
path: root/libXmu/src/LookupCmap.c
diff options
context:
space:
mode:
Diffstat (limited to 'libXmu/src/LookupCmap.c')
-rw-r--r--libXmu/src/LookupCmap.c644
1 files changed, 322 insertions, 322 deletions
diff --git a/libXmu/src/LookupCmap.c b/libXmu/src/LookupCmap.c
index 0dc8aaaab..5756b83ec 100644
--- a/libXmu/src/LookupCmap.c
+++ b/libXmu/src/LookupCmap.c
@@ -1,322 +1,322 @@
-/*
-
-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.
-
-*/
-
-/*
- * 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;
-}
+/*
+
+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.
+
+*/
+
+/*
+ * 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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 09:57:21 +0000