svn merge ^/branches/released .

1 files changed, 493 insertions, 495 deletions

diff --git a/libX11/src/xcms/cmsCmap.c b/libX11/src/xcms/cmsCmap.c
index f93a25b1f..2f14cdb25 100644
--- a/libX11/src/xcms/cmsCmap.c
+++ b/libX11/src/xcms/cmsCmap.c
@@ -1,495 +1,493 @@
-
-/*
- * 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.
- *
- *
- */
-
-#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 (visualList == NULL) {
-	    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(
-    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(
-    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(
-    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;
-}
+

+/*

+ * 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.

+ *

+ *

+ */

+

+#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 (visualList == NULL) {

+	    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(

+    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(

+    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(

+    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;

+}