Added libXext

1 files changed, 266 insertions, 0 deletions

diff --git a/libXext/src/Xcup.c b/libXext/src/Xcup.c
new file mode 100644
index 000000000..6013039ef
--- /dev/null
+++ b/libXext/src/Xcup.c
@@ -0,0 +1,266 @@
+/* $XFree86: xc/lib/Xext/Xcup.c,v 1.8 2002/10/16 02:19:22 dawes Exp $ */
+/*
+
+Copyright 1987, 1988, 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.
+
+*/
+/* $Xorg: Xcup.c,v 1.5 2001/02/09 02:03:49 xorgcvs Exp $ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#ifdef WIN32
+#include <X11/Xwindows.h>
+#endif
+
+#define NEED_EVENTS
+#define NEED_REPLIES
+#include <X11/Xlibint.h>
+#include <X11/extensions/Xcup.h>
+#include <X11/extensions/cupproto.h>
+#include <X11/extensions/Xext.h>
+#include <X11/extensions/extutil.h>
+
+static XExtensionInfo _xcup_info_data;
+static XExtensionInfo *xcup_info = &_xcup_info_data;
+static char *xcup_extension_name = XCUPNAME;
+
+/*****************************************************************************
+ *                                                                           *
+ *			   private utility routines                          *
+ *                                                                           *
+ *****************************************************************************/
+
+static int close_display(Display *dpy, XExtCodes *codes);
+static /* const */ XExtensionHooks xcup_extension_hooks = {
+    NULL,				/* create_gc */
+    NULL,				/* copy_gc */
+    NULL,				/* flush_gc */
+    NULL,				/* free_gc */
+    NULL,				/* create_font */
+    NULL,				/* free_font */
+    close_display,			/* close_display */
+    NULL,				/* wire_to_event */
+    NULL,				/* event_to_wire */
+    NULL,				/* error */
+    NULL,				/* error_string */
+};
+
+static XEXT_GENERATE_FIND_DISPLAY (find_display, xcup_info, 
+				   xcup_extension_name, 
+				   &xcup_extension_hooks, 
+				   0, NULL)
+
+static XEXT_GENERATE_CLOSE_DISPLAY (close_display, xcup_info)
+
+
+/*****************************************************************************
+ *                                                                           *
+ *		    public Xcup Extension routines                           *
+ *                                                                           *
+ *****************************************************************************/
+
+Status
+XcupQueryVersion(
+    Display* dpy,
+    int* major_version_return,
+    int* minor_version_return)
+{
+    XExtDisplayInfo *info = find_display (dpy);
+    xXcupQueryVersionReply rep;
+    xXcupQueryVersionReq *req;
+
+    XextCheckExtension (dpy, info, xcup_extension_name, False);
+
+    LockDisplay(dpy);
+    GetReq(XcupQueryVersion, req);
+    req->reqType = info->codes->major_opcode;
+    req->xcupReqType = X_XcupQueryVersion;
+    req->client_major_version = XCUP_MAJOR_VERSION;
+    req->client_minor_version = XCUP_MINOR_VERSION;
+    if (!_XReply(dpy, (xReply *)&rep, 0, xTrue)) {
+	UnlockDisplay(dpy);
+	SyncHandle();
+	return False;
+    }
+    *major_version_return = rep.server_major_version;
+    *minor_version_return = rep.server_minor_version;
+    UnlockDisplay(dpy);
+    SyncHandle();
+    return True;
+}
+
+/* Win32 reserves 20 colormap entries for its desktop */
+#ifndef TYP_RESERVED_ENTRIES
+#define TYP_RESERVED_ENTRIES 20
+#endif
+
+Status 
+XcupGetReservedColormapEntries(
+    Display* dpy,
+    int screen,
+    XColor** colors_out,
+    int* ncolors)
+{
+    XExtDisplayInfo *info = find_display (dpy);
+    xXcupGetReservedColormapEntriesReply rep;
+    xXcupGetReservedColormapEntriesReq *req;
+    xColorItem rbuf[TYP_RESERVED_ENTRIES];
+
+    *ncolors = 0;
+
+    XextCheckExtension (dpy, info, xcup_extension_name, False);
+
+    LockDisplay(dpy);
+    GetReq(XcupGetReservedColormapEntries, req);
+    req->reqType = info->codes->major_opcode;
+    req->xcupReqType = X_XcupGetReservedColormapEntries;
+    req->screen = screen;
+    if (_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+	long nbytes;
+	xColorItem* rbufp;
+	int nentries = rep.length / 3;
+
+	nbytes = nentries * SIZEOF (xColorItem);
+	if (nentries > TYP_RESERVED_ENTRIES)
+	    rbufp = (xColorItem*) Xmalloc (nbytes);
+	else
+	    rbufp = rbuf;
+
+	if (rbufp == NULL) {
+	    _XEatData (dpy, (unsigned long) nbytes);
+	    UnlockDisplay (dpy);
+	    SyncHandle ();
+	    return False;
+	}
+	_XRead (dpy, (char*) rbufp, nbytes);
+
+	*colors_out = (XColor*) Xmalloc (nentries  * sizeof (XColor));
+	if (*colors_out) {
+	    xColorItem* cs = (xColorItem *) rbufp;
+	    XColor* cd = *colors_out;
+	    int i;
+
+	    *ncolors = nentries;
+	    for (i = 0; i < *ncolors; i++, cd++) {
+		cd->pixel = cs->pixel;
+		cd->red = cs->red;
+		cd->green = cs->green;
+		cd->blue = cs->blue;
+		cs = (xColorItem*) (((char*) cs) + SIZEOF(xColorItem));
+	    }
+	    if (rbufp != rbuf) XFree ((char*) rbufp);
+	    UnlockDisplay(dpy);
+    	    SyncHandle();
+	    return True;
+	}
+	if (rbufp != rbuf) XFree ((char*) rbufp);
+    }
+    UnlockDisplay(dpy);
+    SyncHandle();
+    return False;
+}
+
+Status
+XcupStoreColors(
+    Display* dpy,
+    Colormap colormap,
+    XColor* colors_in_out,
+    int ncolors)
+{
+    XExtDisplayInfo *info = find_display (dpy);
+    xXcupStoreColorsReply rep;
+    xXcupStoreColorsReq *req;
+    xColorItem rbuf[256];
+    xColorItem citem;
+    int i;
+    XColor* xcp;
+
+    XextCheckExtension (dpy, info, xcup_extension_name, False);
+
+    LockDisplay(dpy);
+    GetReq(XcupStoreColors, req);
+    req->reqType = info->codes->major_opcode;
+    req->xcupReqType = X_XcupStoreColors;
+    req->cmap = colormap;
+    req->length += (ncolors * SIZEOF(xColorItem)) >> 2;
+
+    for (i = 0, xcp = colors_in_out; i < ncolors; i++, xcp++) {
+	citem.pixel = xcp->pixel;
+	citem.red = xcp->red;
+	citem.green = xcp->green;
+	citem.blue = xcp->blue;
+
+	/* note that xColorItem doesn't contain all 16-bit quantities, so
+	   we can't use Data16 */
+	Data(dpy, (char *)&citem, (long) SIZEOF(xColorItem));
+    }
+
+    if (_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+	long nbytes;
+	xColorItem* rbufp;
+	xColorItem* cs;
+	int nentries = rep.length / 3;
+
+	nbytes = nentries * SIZEOF (xColorItem);
+
+	if (nentries != ncolors) {
+	    _XEatData (dpy, (unsigned long) nbytes);
+	    UnlockDisplay (dpy);
+	    SyncHandle ();
+	    return False;
+	}
+
+	if (ncolors > 256)
+	    rbufp = (xColorItem*) Xmalloc (nbytes);
+	else
+	    rbufp = rbuf;
+
+	if (rbufp == NULL) {
+	    _XEatData (dpy, (unsigned long) nbytes);
+	    UnlockDisplay (dpy);
+	    SyncHandle ();
+	    return False;
+
+	}
+
+	_XRead (dpy, (char*) rbufp, nbytes);
+
+	for (i = 0, xcp = colors_in_out, cs = rbufp; i < ncolors; i++, xcp++, cs++) {
+	    xcp->pixel = cs->pixel;
+	    xcp->red = cs->red;
+	    xcp->green = cs->green;
+	    xcp->blue = cs->blue;
+	    xcp->flags = cs->flags;
+	}
+	if (rbufp != rbuf) XFree ((char*)rbufp);
+
+	UnlockDisplay(dpy);
+	SyncHandle();
+	return True;
+    }
+    UnlockDisplay(dpy);
+    SyncHandle();
+    return False;
+}
+