Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 497 insertions, 0 deletions

diff --git a/nx-X11/lib/X11/cmsCmap.c b/nx-X11/lib/X11/cmsCmap.c
new file mode 100644
index 000000000..bc26638c1
--- /dev/null
+++ b/nx-X11/lib/X11/cmsCmap.c
@@ -0,0 +1,497 @@
+/* $Xorg: cmsCmap.c,v 1.3 2000/08/17 19:45:09 cpqbld Exp $ */
+
+/*
+ * Code and supporting documentation (c) Copyright 1990 1991 Tektronix, Inc.
+ * 	All Rights Reserved
+ * 
+ * This file is a component of an X Window System-specific implementation
+ * of Xcms based on the TekColor Color Management System.  Permission is
+ * hereby granted to use, copy, modify, sell, and otherwise distribute this
+ * software and its documentation for any purpose and without fee, provided
+ * that this copyright, permission, and disclaimer notice is reproduced in
+ * all copies of this software and in supporting documentation.  TekColor
+ * is a trademark of Tektronix, Inc.
+ * 
+ * Tektronix makes no representation about the suitability of this software
+ * for any purpose.  It is provided "as is" and with all faults.
+ * 
+ * TEKTRONIX DISCLAIMS ALL WARRANTIES APPLICABLE TO THIS SOFTWARE,
+ * INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE.  IN NO EVENT SHALL TEKTRONIX BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR THE PERFORMANCE OF THIS SOFTWARE.
+ *
+ *
+ *	NAME
+ *		XcmsCmap.c - Client Colormap Management Routines
+ *
+ *	DESCRIPTION
+ *		Routines that store additional information about
+ *		colormaps being used by the X Client.
+ *
+ *
+ */
+/* $XFree86$ */
+
+#define NEED_EVENTS
+#define NEED_REPLIES
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+#include "Xcmsint.h"
+#include "Xutil.h"
+#include "Cmap.h"
+#include "Cv.h"
+
+/*
+ *      FORWARD DECLARATIONS
+ */
+static void _XcmsFreeClientCmaps(Display *dpy);
+
+
+/************************************************************************
+ *									*
+ *			PRIVATE INTERFACES				*
+ *									*
+ ************************************************************************/
+
+/*
+ *	NAME
+ *		CmapRecForColormap
+ *
+ *	SYNOPSIS
+ */
+static XcmsCmapRec *
+CmapRecForColormap(
+    Display *dpy,
+    Colormap cmap)
+/*
+ *	DESCRIPTION
+ *		Find the corresponding XcmsCmapRec for cmap.  In not found
+ *		this routines attempts to create one.
+ *
+ *	RETURNS
+ *		Returns NULL if failed; otherwise the address to
+ *		the corresponding XcmsCmapRec.
+ *
+ */
+{
+    XcmsCmapRec *pRec;
+    int nScrn;
+    int i, j;
+    XVisualInfo visualTemplate;	/* Template of the visual we want */
+    XVisualInfo *visualList;	/* List for visuals that match */
+    int nVisualsMatched;	/* Number of visuals that match */
+    Window tmpWindow;
+    Visual *vp;
+    unsigned long border = 0;
+    _XAsyncHandler async;
+    _XAsyncErrorState async_state;
+
+    for (pRec = (XcmsCmapRec *)dpy->cms.clientCmaps; pRec != NULL;
+	    pRec = pRec->pNext) {
+	if (pRec->cmapID == cmap) {
+	    return(pRec);
+	}
+    }
+
+    /*
+     * Can't find an XcmsCmapRec associated with cmap in our records.
+     * Let's try to see if its a default colormap
+     */
+    nScrn = ScreenCount(dpy);
+    for (i = 0; i < nScrn; i++) {
+	if (cmap == DefaultColormap(dpy, i)) {
+	    /* It is ... lets go ahead and store that info */
+	    if ((pRec = _XcmsAddCmapRec(dpy, cmap, RootWindow(dpy, i),
+		    DefaultVisual(dpy, i))) == NULL) {
+		return((XcmsCmapRec *)NULL);
+	    }
+	    pRec->ccc = XcmsCreateCCC(
+		    dpy,
+		    i,			/* screenNumber */
+		    DefaultVisual(dpy, i),
+		    (XcmsColor *)NULL,	/* clientWhitePt */
+		    (XcmsCompressionProc)NULL,  /* gamutCompProc */
+		    (XPointer)NULL,	/* gamutCompClientData */
+		    (XcmsWhiteAdjustProc)NULL,  /* whitePtAdjProc */
+		    (XPointer)NULL	/* whitePtAdjClientData */
+		    );
+	    return(pRec);
+	}
+    }
+
+    /*
+     * Nope, its not a default colormap, so it's probably a foreign color map
+     * of which we have no specific details.  Let's go through the
+     * rigorous process of finding this colormap:
+     *        for each screen
+     *            for each screen's visual types
+     *                create a window with cmap specified as the colormap
+     *                if successful
+     *                    Add a CmapRec
+     *                    Create an XcmsCCC
+     *                    return the CmapRec
+     *                else
+     *                    continue
+     */
+
+    async_state.error_code = 0; /* don't care */
+    async_state.major_opcode = X_CreateWindow;
+    async_state.minor_opcode = 0;
+    for (i = 0; i < nScrn; i++) {
+	visualTemplate.screen = i;
+	visualList = XGetVisualInfo(dpy, VisualScreenMask, &visualTemplate,
+	    &nVisualsMatched);
+	if (nVisualsMatched == 0) {
+	    continue;
+	}
+
+	/*
+	 * Attempt to create a window with cmap
+	 */
+	j = 0;
+	do {
+	    vp = (visualList+j)->visual;
+	    LockDisplay(dpy);
+	    {
+		register xCreateWindowReq *req;
+
+		GetReq(CreateWindow, req);
+		async_state.min_sequence_number = dpy->request;
+		async_state.max_sequence_number = dpy->request;
+		async_state.error_count = 0;
+		async.next = dpy->async_handlers;
+		async.handler = _XAsyncErrorHandler;
+		async.data = (XPointer)&async_state;
+		dpy->async_handlers = &async;
+		req->parent = RootWindow(dpy, i);
+		req->x = 0;
+		req->y = 0;
+		req->width = 1;
+		req->height = 1;
+		req->borderWidth = 0;
+		req->depth = (visualList+j)->depth;
+		req->class = CopyFromParent;
+		req->visual = vp->visualid;
+		tmpWindow = req->wid = XAllocID(dpy);
+		req->mask = CWBorderPixel | CWColormap;
+		req->length += 2;
+		Data32 (dpy, (long *) &border, 4);
+		Data32 (dpy, (long *) &cmap, 4);
+	    }
+	    {
+		xGetInputFocusReply rep;
+		register xReq *req;
+
+		GetEmptyReq(GetInputFocus, req);
+		(void) _XReply (dpy, (xReply *)&rep, 0, xTrue);
+	    }
+	    DeqAsyncHandler(dpy, &async);
+	    UnlockDisplay(dpy);
+	    SyncHandle();
+	} while (async_state.error_count > 0 && ++j < nVisualsMatched);
+
+	Xfree((char *)visualList);
+
+	/*
+	 * if successful
+	 */
+	if (j < nVisualsMatched) {
+	    if ((pRec = _XcmsAddCmapRec(dpy, cmap, tmpWindow, vp)) == NULL)
+		return((XcmsCmapRec *)NULL);
+	    pRec->ccc = XcmsCreateCCC(
+		    dpy,
+		    i,			/* screenNumber */
+		    vp,
+		    (XcmsColor *)NULL,	/* clientWhitePt */
+		    (XcmsCompressionProc)NULL,  /* gamutCompProc */
+		    (XPointer)NULL,	/* gamutCompClientData */
+		    (XcmsWhiteAdjustProc)NULL,  /* whitePtAdjProc */
+		    (XPointer)NULL	/* whitePtAdjClientData */
+		    );
+	    XDestroyWindow(dpy, tmpWindow);
+	    return(pRec);
+	}
+    }
+
+    return(NULL);
+}
+
+
+
+/************************************************************************
+ *									*
+ *			API PRIVATE INTERFACES				*
+ *									*
+ ************************************************************************/
+
+/*
+ *	NAME
+ *		_XcmsAddCmapRec
+ *
+ *	SYNOPSIS
+ */
+XcmsCmapRec *
+_XcmsAddCmapRec(dpy, cmap, windowID, visual)
+    Display *dpy;
+    Colormap cmap;
+    Window windowID;
+    Visual *visual;
+/*
+ *	DESCRIPTION
+ *		Create an XcmsCmapRec for the specified cmap, windowID,
+ *		and visual, then adds it to its list of CmapRec's.
+ *
+ *	RETURNS
+ *		Returns NULL if failed; otherwise the address to
+ *		the added XcmsCmapRec.
+ *
+ */
+{
+    XcmsCmapRec *pNew;
+
+    if ((pNew = (XcmsCmapRec *) Xcalloc(1, (unsigned) sizeof(XcmsCmapRec)))
+	    == NULL) {
+	return((XcmsCmapRec *)NULL);
+    }
+
+    pNew->cmapID = cmap;
+    pNew->dpy = dpy;
+    pNew->windowID = windowID;
+    pNew->visual = visual;
+    pNew->pNext = (XcmsCmapRec *)dpy->cms.clientCmaps;
+    dpy->cms.clientCmaps = (XPointer)pNew;
+    dpy->free_funcs->clientCmaps = _XcmsFreeClientCmaps;
+
+    /*
+     * Note, we don't create the XcmsCCC for pNew->ccc here because
+     * it may require the use of XGetWindowAttributes (a round trip request)
+     * to determine the screen.
+     */
+    return(pNew);
+}
+
+
+/*
+ *	NAME
+ *		_XcmsCopyCmapRecAndFree
+ *
+ *	SYNOPSIS
+ */
+XcmsCmapRec *
+_XcmsCopyCmapRecAndFree(
+    Display *dpy,
+    Colormap src_cmap,
+    Colormap copy_cmap)
+/*
+ *	DESCRIPTION
+ *		Augments Xlib's XCopyColormapAndFree() to copy
+ *		XcmsCmapRecs.
+ *
+ *	RETURNS
+ *		Returns NULL if failed; otherwise the address to
+ *		the copy XcmsCmapRec.
+ *
+ */
+{
+    XcmsCmapRec *pRec_src;
+    XcmsCmapRec *pRec_copy;
+
+    if ((pRec_src = CmapRecForColormap(dpy, src_cmap)) != NULL) {
+	pRec_copy =_XcmsAddCmapRec(dpy, copy_cmap, pRec_src->windowID,
+		pRec_src->visual);
+	if (pRec_copy != NULL && pRec_src->ccc) {
+	    pRec_copy->ccc = (XcmsCCC)Xcalloc(1, (unsigned) sizeof(XcmsCCCRec));
+	    memcpy((char *)pRec_copy->ccc, (char *)pRec_src->ccc,
+		   sizeof(XcmsCCCRec));
+	}
+	return(pRec_copy);
+    }
+    return((XcmsCmapRec *)NULL);
+}
+
+
+/*
+ *	NAME
+ *		_XcmsDeleteCmapRec
+ *
+ *	SYNOPSIS
+ */
+void
+_XcmsDeleteCmapRec(
+    Display *dpy,
+    Colormap cmap)
+/*
+ *	DESCRIPTION
+ *		Removes and frees the specified XcmsCmapRec structure
+ *		from the linked list of structures.
+ *
+ *	RETURNS
+ *		void
+ *
+ */
+{
+    XcmsCmapRec **pPrevPtr;
+    XcmsCmapRec *pRec;
+    int scr;
+
+    /* If it is the default cmap for a screen, do not delete it,
+     * because the server will not actually free it */
+    for (scr = ScreenCount(dpy); --scr >= 0; ) {
+	if (cmap == DefaultColormap(dpy, scr))
+	    return;
+    }
+
+    /* search for it in the list */
+    pPrevPtr = (XcmsCmapRec **)&dpy->cms.clientCmaps;
+    while ((pRec = *pPrevPtr) && (pRec->cmapID != cmap)) {
+	pPrevPtr = &pRec->pNext;
+    }
+
+    if (pRec) {
+	if (pRec->ccc) {
+	    XcmsFreeCCC(pRec->ccc);
+	}
+	*pPrevPtr = pRec->pNext;
+	Xfree((char *)pRec);
+    }
+}
+
+
+/*
+ *	NAME
+ *		_XcmsFreeClientCmaps
+ *
+ *	SYNOPSIS
+ */
+static void
+_XcmsFreeClientCmaps(
+    Display *dpy)
+/*
+ *	DESCRIPTION
+ *		Frees all XcmsCmapRec structures in the linked list
+ *		and sets dpy->cms.clientCmaps to NULL.
+ *
+ *	RETURNS
+ *		void
+ *
+ */
+{
+    XcmsCmapRec *pRecNext, *pRecFree;
+
+    pRecNext = (XcmsCmapRec *)dpy->cms.clientCmaps;
+    while (pRecNext != NULL) {
+	pRecFree = pRecNext;
+	pRecNext = pRecNext->pNext;
+	if (pRecFree->ccc) {
+	    /* Free the XcmsCCC structure */
+	    XcmsFreeCCC(pRecFree->ccc);
+	}
+	/* Now free the XcmsCmapRec structure */
+	Xfree((char *)pRecFree);
+    }
+    dpy->cms.clientCmaps = (XPointer)NULL;
+}
+
+
+
+/************************************************************************
+ *									*
+ *			PUBLIC INTERFACES				*
+ *									*
+ ************************************************************************/
+
+/*
+ *	NAME
+ *		XcmsCCCOfColormap
+ *
+ *	SYNOPSIS
+ */
+XcmsCCC 
+XcmsCCCOfColormap(dpy, cmap)
+    Display *dpy;
+    Colormap cmap;
+/*
+ *	DESCRIPTION
+ *		Finds the XcmsCCC associated with the specified colormap.
+ *
+ *	RETURNS
+ *		Returns NULL if failed; otherwise the address to
+ *		the associated XcmsCCC structure.
+ *
+ */
+{
+    XWindowAttributes windowAttr;
+    XcmsCmapRec *pRec;
+    int nScrn = ScreenCount(dpy);
+    int i;
+
+    if ((pRec = CmapRecForColormap(dpy, cmap)) != NULL) {
+	if (pRec->ccc) {
+	    /* XcmsCmapRec already has a XcmsCCC */
+	    return(pRec->ccc);
+	}
+
+	/*
+	 * The XcmsCmapRec does not have a XcmsCCC yet, so let's create
+	 * one.  But first, we need to know the screen associated with
+	 * cmap, so use XGetWindowAttributes() to extract that
+	 * information.  Unless, of course there is only one screen!!
+	 */
+	if (nScrn == 1) {
+	    /* Assume screenNumber == 0 */
+	    return(pRec->ccc = XcmsCreateCCC(
+		    dpy,
+		    0,			/* screenNumber */
+		    pRec->visual,
+		    (XcmsColor *)NULL,	/* clientWhitePt */
+		    (XcmsCompressionProc)NULL,  /* gamutCompProc */
+		    (XPointer)NULL,	/* gamutCompClientData */
+		    (XcmsWhiteAdjustProc)NULL,  /* whitePtAdjProc */
+		    (XPointer)NULL	/* whitePtAdjClientData */
+		    ));
+	} else {
+	    if (XGetWindowAttributes(dpy, pRec->windowID, &windowAttr)) {
+		for (i = 0; i < nScrn; i++) {
+		    if (ScreenOfDisplay(dpy, i) == windowAttr.screen) {
+			return(pRec->ccc = XcmsCreateCCC(
+				dpy,
+				i,		   /* screenNumber */
+				pRec->visual,
+				(XcmsColor *)NULL, /* clientWhitePt */
+				(XcmsCompressionProc)NULL, /* gamutCompProc */
+				(XPointer)NULL,	   /* gamutCompClientData */
+				(XcmsWhiteAdjustProc)NULL, /* whitePtAdjProc */
+				(XPointer)NULL	   /* whitePtAdjClientData */
+				));
+		    }
+		}
+	    }
+	}
+    }
+
+    /*
+     * No such cmap
+     */
+    return(NULL);
+}
+
+XcmsCCC XcmsSetCCCOfColormap(dpy, cmap, ccc)
+    Display *dpy;
+    Colormap cmap;
+    XcmsCCC ccc;
+{
+    XcmsCCC prev_ccc = NULL;
+    XcmsCmapRec *pRec;
+
+    pRec = CmapRecForColormap(dpy, cmap);
+    if (pRec) {
+	prev_ccc = pRec->ccc;
+	pRec->ccc = ccc;
+    }
+    return prev_ccc;
+}