diff options
Diffstat (limited to 'libX11/src/xcms/cmsCmap.c')
| -rw-r--r-- | libX11/src/xcms/cmsCmap.c | 988 |
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;
+}
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