diff options
Diffstat (limited to 'libXmu/src/AllCmap.c')
| -rw-r--r-- | libXmu/src/AllCmap.c | 310 |
1 files changed, 155 insertions, 155 deletions
diff --git a/libXmu/src/AllCmap.c b/libXmu/src/AllCmap.c index 1f57b708a..1daa8de7c 100644 --- a/libXmu/src/AllCmap.c +++ b/libXmu/src/AllCmap.c @@ -1,155 +1,155 @@ -/*
-
-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 <stdio.h>
-#include <X11/Xlib.h>
-#include <X11/Xatom.h>
-#include <X11/Xutil.h>
-#include <X11/Xmu/StdCmap.h>
-
-static XVisualInfo *getDeepestVisual(int, XVisualInfo*, int);
-
-/*
- * To create all of the appropriate standard colormaps for every visual of
- * every screen on a given display, use XmuAllStandardColormaps.
- *
- * Define and retain as permanent resources all standard colormaps which are
- * meaningful for the visuals of each screen of the display. Return 0 on
- * failure, non-zero on success. If the property of any standard colormap
- * is already defined, redefine it.
- *
- * This interface is intended to be used by window managers or a client
- * upon start-up of a session.
- *
- * The standard colormaps of a screen are defined by properties associated
- * with the screen's root window. Each screen has exactly one root window.
- * The property names of standard colormaps are predefined, and each property
- * name may describe at most one colormap.
- *
- * The standard colormaps are
- * RGB_BEST_MAP
- * RGB_RED_MAP
- * RGB_GREEN_MAP
- * RGB_BLUE_MAP
- * RGB_DEFAULT_MAP
- * RGB_GRAY_MAP
- *
- * Therefore a screen may have at most 6 standard colormap properties defined.
- *
- * A standard colormap is associated with a particular visual of the screen.
- * A screen may have multiple visuals defined, including visuals of the same
- * class at different depths. Note that a visual id might be repeated for
- * more than one depth, so the visual id and the depth of a visual identify
- * the visual. The characteristics of the visual will determine which
- * standard colormaps are meaningful under that visual, and will determine
- * how the standard colormap is defined. Because a standard colormap is
- * associated with a specific visual, there must be a method of determining
- * which visuals take precedence in defining standard colormaps.
- *
- * The method used here is: for the visual of greatest depth, define all
- * standard colormaps meaningful to that visual class, according to this
- * order of (descending) precedence:
- * 1. DirectColor
- * 2. PseudoColor
- * 3. TrueColor and GrayScale
- * 4. StaticColor and StaticGray
- *
- * Allows partial success by screenful. For example, if a map on screen 1
- * fails, the maps on screen 0, created earlier, will remain. However,
- * none on screen 1 will remain. If a map on 0 fails, none will remain.
- *
- * See the comments under XmuVisualStandardColormaps() for notes on which
- * standard colormaps are meaningful under these classes of visuals.
- */
-
-Status
-XmuAllStandardColormaps(Display *dpy)
-{
- int nvisuals, scr;
- Status status;
- long vinfo_mask;
- XVisualInfo template, *vinfo, *v1, *v2;
-
- status = 0;
- /* for each screen, determine all visuals of this server */
- for (scr=0; scr < ScreenCount(dpy); scr++)
- {
- template.screen = scr;
- vinfo_mask = VisualScreenMask;
- vinfo = XGetVisualInfo(dpy, vinfo_mask, &template, &nvisuals);
- if (vinfo == NULL) /* unexpected: a screen with no visuals */
- continue;
-
- v1 = getDeepestVisual(DirectColor, vinfo, nvisuals);
- v2 = getDeepestVisual(PseudoColor, vinfo, nvisuals);
-
- if (v2 &&
- (!v1 || (v2->colormap_size >=
- ((v1->red_mask | v1->green_mask | v1->blue_mask) + 1))))
- status = XmuVisualStandardColormaps(dpy, scr, v2->visualid,
- (unsigned) v2->depth, 1, 1);
- else if (v1)
- status = XmuVisualStandardColormaps(dpy, scr, v1->visualid,
- (unsigned) v1->depth, 1, 1);
-
- else {
- if (((v1 = getDeepestVisual(TrueColor, vinfo, nvisuals)) != NULL)
- || ((v1 = getDeepestVisual(StaticColor, vinfo, nvisuals)) !=
- NULL))
- status = XmuVisualStandardColormaps(dpy, scr, v1->visualid,
- (unsigned) v1->depth, 1, 1);
- if (status &&
- (((v1 = getDeepestVisual(GrayScale, vinfo, nvisuals)) != NULL)
- || ((v1 = getDeepestVisual(StaticGray, vinfo, nvisuals)) !=
- NULL)))
- status = XmuVisualStandardColormaps(dpy, scr, v1->visualid,
- (unsigned) v1->depth, 1, 1);
- }
- XFree ((char *) vinfo);
- if (!status) break;
- }
- return status;
-}
-
-static XVisualInfo *
-getDeepestVisual(int visual_class, XVisualInfo *vinfo, int nvisuals)
-{
- register int i;
- register int maxdepth = 0;
- XVisualInfo *v = NULL;
-
- for (i=0; i < nvisuals; i++, vinfo++)
- if (vinfo->class == visual_class && vinfo->depth > maxdepth)
- {
- maxdepth = vinfo->depth;
- v = vinfo;
- }
- return(v);
-}
-
+/* + +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 <stdio.h> +#include <X11/Xlib.h> +#include <X11/Xatom.h> +#include <X11/Xutil.h> +#include <X11/Xmu/StdCmap.h> + +static XVisualInfo *getDeepestVisual(int, XVisualInfo*, int); + +/* + * To create all of the appropriate standard colormaps for every visual of + * every screen on a given display, use XmuAllStandardColormaps. + * + * Define and retain as permanent resources all standard colormaps which are + * meaningful for the visuals of each screen of the display. Return 0 on + * failure, non-zero on success. If the property of any standard colormap + * is already defined, redefine it. + * + * This interface is intended to be used by window managers or a client + * upon start-up of a session. + * + * The standard colormaps of a screen are defined by properties associated + * with the screen's root window. Each screen has exactly one root window. + * The property names of standard colormaps are predefined, and each property + * name may describe at most one colormap. + * + * The standard colormaps are + * RGB_BEST_MAP + * RGB_RED_MAP + * RGB_GREEN_MAP + * RGB_BLUE_MAP + * RGB_DEFAULT_MAP + * RGB_GRAY_MAP + * + * Therefore a screen may have at most 6 standard colormap properties defined. + * + * A standard colormap is associated with a particular visual of the screen. + * A screen may have multiple visuals defined, including visuals of the same + * class at different depths. Note that a visual id might be repeated for + * more than one depth, so the visual id and the depth of a visual identify + * the visual. The characteristics of the visual will determine which + * standard colormaps are meaningful under that visual, and will determine + * how the standard colormap is defined. Because a standard colormap is + * associated with a specific visual, there must be a method of determining + * which visuals take precedence in defining standard colormaps. + * + * The method used here is: for the visual of greatest depth, define all + * standard colormaps meaningful to that visual class, according to this + * order of (descending) precedence: + * 1. DirectColor + * 2. PseudoColor + * 3. TrueColor and GrayScale + * 4. StaticColor and StaticGray + * + * Allows partial success by screenful. For example, if a map on screen 1 + * fails, the maps on screen 0, created earlier, will remain. However, + * none on screen 1 will remain. If a map on 0 fails, none will remain. + * + * See the comments under XmuVisualStandardColormaps() for notes on which + * standard colormaps are meaningful under these classes of visuals. + */ + +Status +XmuAllStandardColormaps(Display *dpy) +{ + int nvisuals, scr; + Status status; + long vinfo_mask; + XVisualInfo template, *vinfo, *v1, *v2; + + status = 0; + /* for each screen, determine all visuals of this server */ + for (scr=0; scr < ScreenCount(dpy); scr++) + { + template.screen = scr; + vinfo_mask = VisualScreenMask; + vinfo = XGetVisualInfo(dpy, vinfo_mask, &template, &nvisuals); + if (vinfo == NULL) /* unexpected: a screen with no visuals */ + continue; + + v1 = getDeepestVisual(DirectColor, vinfo, nvisuals); + v2 = getDeepestVisual(PseudoColor, vinfo, nvisuals); + + if (v2 && + (!v1 || (v2->colormap_size >= + ((v1->red_mask | v1->green_mask | v1->blue_mask) + 1)))) + status = XmuVisualStandardColormaps(dpy, scr, v2->visualid, + (unsigned) v2->depth, 1, 1); + else if (v1) + status = XmuVisualStandardColormaps(dpy, scr, v1->visualid, + (unsigned) v1->depth, 1, 1); + + else { + if (((v1 = getDeepestVisual(TrueColor, vinfo, nvisuals)) != NULL) + || ((v1 = getDeepestVisual(StaticColor, vinfo, nvisuals)) != + NULL)) + status = XmuVisualStandardColormaps(dpy, scr, v1->visualid, + (unsigned) v1->depth, 1, 1); + if (status && + (((v1 = getDeepestVisual(GrayScale, vinfo, nvisuals)) != NULL) + || ((v1 = getDeepestVisual(StaticGray, vinfo, nvisuals)) != + NULL))) + status = XmuVisualStandardColormaps(dpy, scr, v1->visualid, + (unsigned) v1->depth, 1, 1); + } + XFree ((char *) vinfo); + if (!status) break; + } + return status; +} + +static XVisualInfo * +getDeepestVisual(int visual_class, XVisualInfo *vinfo, int nvisuals) +{ + register int i; + register int maxdepth = 0; + XVisualInfo *v = NULL; + + for (i=0; i < nvisuals; i++, vinfo++) + if (vinfo->class == visual_class && vinfo->depth > maxdepth) + { + maxdepth = vinfo->depth; + v = vinfo; + } + return(v); +} + |