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-rw-r--r--libX11/src/SetRGBCMap.c101
1 files changed, 101 insertions, 0 deletions
diff --git a/libX11/src/SetRGBCMap.c b/libX11/src/SetRGBCMap.c
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+++ b/libX11/src/SetRGBCMap.c
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+/* $Xorg: SetRGBCMap.c,v 1.4 2001/02/09 02:03:36 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.
+
+*/
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/Xlibint.h>
+#include <X11/Xutil.h>
+#include "Xatomtype.h"
+#include <X11/Xatom.h>
+
+void XSetRGBColormaps (
+ Display *dpy,
+ Window w,
+ XStandardColormap *cmaps,
+ int count,
+ Atom property) /* XA_RGB_BEST_MAP, etc. */
+{
+ register int i; /* iterator variable */
+ register xPropStandardColormap *map; /* tmp variable, data in prop */
+ register XStandardColormap *cmap; /* tmp variable, user data */
+ xPropStandardColormap *data, tmpdata; /* scratch data */
+ int mode = PropModeReplace; /* for partial writes */
+ Bool alloced_scratch_space; /* do we need to free? */
+
+
+ if (count < 1) return;
+
+ /*
+ * if doing more than one, allocate scratch space for it
+ */
+ if ((count > 1) && ((data = ((xPropStandardColormap *)
+ Xmalloc(count*sizeof(xPropStandardColormap))))
+ != NULL)) {
+ alloced_scratch_space = True;
+ } else {
+ data = &tmpdata;
+ alloced_scratch_space = False;
+ }
+
+
+ /*
+ * Do the iteration. If using temp space put out each part of the prop;
+ * otherwise, wait until the end and blast it all at once.
+ */
+ for (i = count, map = data, cmap = cmaps; i > 0; i--, cmap++) {
+ map->colormap = cmap->colormap;
+ map->red_max = cmap->red_max;
+ map->red_mult = cmap->red_mult;
+ map->green_max = cmap->green_max;
+ map->green_mult = cmap->green_mult;
+ map->blue_max = cmap->blue_max;
+ map->blue_mult = cmap->blue_mult;
+ map->base_pixel = cmap->base_pixel;
+ map->visualid = cmap->visualid;
+ map->killid = cmap->killid;
+
+ if (alloced_scratch_space) {
+ map++;
+ } else {
+ XChangeProperty (dpy, w, property, XA_RGB_COLOR_MAP, 32, mode,
+ (unsigned char *) data,
+ NumPropStandardColormapElements);
+ mode = PropModeAppend;
+ }
+ }
+
+ if (alloced_scratch_space) {
+ XChangeProperty (dpy, w, property, XA_RGB_COLOR_MAP, 32,
+ PropModeReplace, (unsigned char *) data,
+ (int) (count * NumPropStandardColormapElements));
+ Xfree ((char *) data);
+ }
+}