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Diffstat (limited to 'libX11/src/xcms/CCC.c')
| -rw-r--r-- | libX11/src/xcms/CCC.c | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/libX11/src/xcms/CCC.c b/libX11/src/xcms/CCC.c new file mode 100644 index 000000000..3ba62cd26 --- /dev/null +++ b/libX11/src/xcms/CCC.c @@ -0,0 +1,288 @@ +/* $Xorg: CCC.c,v 1.4 2001/02/09 02:03:31 xorgcvs 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 + * XcmsCCC.c - Color Conversion Context Routines + * + * DESCRIPTION + * Routines to create, access, and free Color Conversion + * Context structures. + * + * + */ +/* $XFree86: xc/lib/X11/CCC.c,v 1.4 2001/12/14 19:53:56 dawes Exp $ */ + +/* + +Copyright 1994, 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 "Xlibint.h" +#include "Xcmsint.h" +#include "Cv.h" + + + +/************************************************************************ + * * + * PUBLIC INTERFACES * + * * + ************************************************************************/ + +/* + * NAME + * XcmsCreateCCC + * + * SYNOPSIS + */ + +XcmsCCC +XcmsCreateCCC( + Display *dpy, + int screenNumber, + Visual *visual, + XcmsColor *clientWhitePt, + XcmsCompressionProc gamutCompProc, + XPointer gamutCompClientData, + XcmsWhiteAdjustProc whitePtAdjProc, + XPointer whitePtAdjClientData) +/* + * DESCRIPTION + * Given a Display, Screen, Visual, etc., this routine creates + * an appropriate Color Conversion Context. + * + * RETURNS + * Returns NULL if failed; otherwise address of the newly + * created XcmsCCC. + * + */ +{ + XcmsCCC pDefaultCCC = XcmsDefaultCCC(dpy, screenNumber); + XcmsCCC newccc; + XcmsIntensityMap *pIMap; + XcmsPerScrnInfo *pNewScrnInfo; + + if (pDefaultCCC == NULL || + !(newccc = (XcmsCCC) Xcalloc(1, (unsigned) sizeof(XcmsCCCRec)))) { + return(NULL); + } + + /* + * Should inherit the following as result of a memmove(): + * dpy + * screenNumber + * pPerScrnInfo + */ + memcpy((char *)newccc, (char *)pDefaultCCC, sizeof(XcmsCCCRec)); + if (clientWhitePt) { + memcpy((char *)&newccc->clientWhitePt, (char *)clientWhitePt, + sizeof(XcmsColor)); + } + if (gamutCompProc) { + newccc->gamutCompProc = gamutCompProc; + } + if (gamutCompClientData) { + newccc->gamutCompClientData = gamutCompClientData; + } + if (whitePtAdjProc) { + newccc->whitePtAdjProc = whitePtAdjProc; + } + if (whitePtAdjClientData) { + newccc->whitePtAdjClientData = whitePtAdjClientData; + } + + /* + * Now check our list of per-Visual Intensity tables. + * If one exists replace the pPerScrnInfo. + */ + if ((pIMap = _XcmsGetIntensityMap(dpy, visual)) != NULL) { + if (!(pNewScrnInfo = (XcmsPerScrnInfo *) + Xcalloc(1, (unsigned) sizeof(XcmsPerScrnInfo)))) { + Xfree(newccc); + return(NULL); + } + memcpy((char *)pNewScrnInfo, (char *)newccc->pPerScrnInfo, + sizeof(XcmsPerScrnInfo)); + pNewScrnInfo->screenData = pIMap->screenData; + newccc->pPerScrnInfo = pNewScrnInfo; + } + + /* + * Set visual component + */ + newccc->visual = visual; + + return(newccc); +} + + +/* + * NAME + * XcmsDefaultCCC + * + * SYNOPSIS + */ +XcmsCCC +XcmsDefaultCCC( + Display *dpy, + int screenNumber) +/* + * DESCRIPTION + * Given a Display and Screen, this routine creates + * returns the Screen's default Color Conversion Context. + * Note that a Screen's default CCC is built with the + * screen default visual. + * + * RETURNS + * Returns NULL if failed; otherwise address of the + * XcmsCCC for the Screen's default CCC. + * + */ +{ + XcmsCCC ccc; + + + if ((screenNumber < 0) || (screenNumber >= ScreenCount(dpy))) { + return((XcmsCCC)NULL); + } + + /* + * Check if the XcmsCCC's for each screen has been created + */ + if ((XcmsCCC)dpy->cms.defaultCCCs == NULL) { + if (!_XcmsInitDefaultCCCs(dpy)) { + return((XcmsCCC)NULL); + } + } + + ccc = (XcmsCCC)dpy->cms.defaultCCCs + screenNumber; + + if (!ccc->pPerScrnInfo) { + /* + * Need to create the XcmsPerScrnInfo structure. The + * _XcmsInitScrnInfo routine will create the XcmsPerScrnInfo + * structure as well as initialize its functionSet and pScreenData + * components. + */ + if (!_XcmsInitScrnInfo(dpy, screenNumber)) { + return((XcmsCCC)NULL); + } + return(ccc); + } else { + /* + * If ccc->pPerScrnInfo->state == XcmsInitSuccess, + * then the pPerScrnInfo component has already been initialized + * therefore, just return ccc. + * If ccc->pPerScrnInfo->state == XcmsInitFailure, + * then this means that we already attempted to initialize + * the pPerScrnInfo component but failed therefore stuffing + * the pPerScrnInfo component with defaults. Just return ccc. + * If ccc->pPerScrnInfo->state == XcmsInitNone, + * then attempt to initialize the pPerScrnInfo component. + */ + switch (ccc->pPerScrnInfo->state) { + case XcmsInitFailure : + /* fall through */ + case XcmsInitSuccess : + return(ccc); + case XcmsInitNone : + /* XcmsPerScreenInfo has not been initialized */ + if (!_XcmsInitScrnInfo(dpy, screenNumber)) { + return((XcmsCCC)NULL); + } + return(ccc); + default : + return((XcmsCCC)NULL); + } + } +} + + +/* + * NAME + * XcmsFreeCCC + * + * SYNOPSIS + */ +void +XcmsFreeCCC(XcmsCCC ccc) +/* + * DESCRIPTION + * Frees memory associated with a Color Conversion Context + * that was created with XcmsCreateCCC(). + * + * RETURNS + * void + * + */ +{ + if (ccc->dpy->cms.defaultCCCs && + ccc == ((XcmsCCC)ccc->dpy->cms.defaultCCCs) + ccc->screenNumber) { + /* do not allow clients to free DefaultCCC's */ + return; + } + + /* + * Note that XcmsPerScrnInfo sub-structures are freed here only if + * they are for visuals that have per-Visual intensity tables. + * Otherwise the XcmsPerScrnInfo structure is being shared! + * For the latter, there is only one allocated per Screen and it just + * so happens * that we place its initial reference is placed in the + * default CCC. The routine _XcmsFreeDefaultCCCs frees them. + */ + if (_XcmsGetIntensityMap(ccc->dpy, ccc->visual) != NULL) { + Xfree(ccc->pPerScrnInfo); + } + + Xfree(ccc); +} |