diff options
Diffstat (limited to 'nx-X11/lib/X11/CvCols.c')
| -rw-r--r-- | nx-X11/lib/X11/CvCols.c | 1030 |
1 files changed, 0 insertions, 1030 deletions
diff --git a/nx-X11/lib/X11/CvCols.c b/nx-X11/lib/X11/CvCols.c deleted file mode 100644 index 87d49311c..000000000 --- a/nx-X11/lib/X11/CvCols.c +++ /dev/null @@ -1,1030 +0,0 @@ - -/* - * 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 - * XcmsCvCols.c - * - * DESCRIPTION - * Xcms API routine that converts between the - * device-independent color spaces. - * - * - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include "Xlibint.h" -#include "Xcmsint.h" -#include "Cv.h" - -/* - * LOCAL DEFINES - */ -#define DD_FORMAT 0x01 -#define DI_FORMAT 0x02 -#define MIX_FORMAT 0x04 -#ifndef MAX -# define MAX(x,y) ((x) > (y) ? (x) : (y)) -#endif - - -/************************************************************************ - * * - * PRIVATE ROUTINES * - * * - ************************************************************************/ - -/* - * NAME - * EqualCIEXYZ - * - * SYNOPSIS - */ -static int -EqualCIEXYZ( - XcmsColor *p1, XcmsColor *p2) -/* - * DESCRIPTION - * Compares two XcmsColor structures that are in XcmsCIEXYZFormat - * - * RETURNS - * Returns 1 if equal; 0 otherwise. - * - */ -{ - if (p1->format != XcmsCIEXYZFormat || p2->format != XcmsCIEXYZFormat) { - return(0); - } - if ((p1->spec.CIEXYZ.X != p2->spec.CIEXYZ.X) - || (p1->spec.CIEXYZ.Y != p2->spec.CIEXYZ.Y) - || (p1->spec.CIEXYZ.Z != p2->spec.CIEXYZ.Z)) { - return(0); - } - return(1); -} - - -/* - * NAME - * XcmsColorSpace - * - * SYNOPSIS - */ -static XcmsColorSpace * -ColorSpaceOfID( - XcmsCCC ccc, - XcmsColorFormat id) -/* - * DESCRIPTION - * Returns a pointer to the color space structure - * (XcmsColorSpace) associated with the specified color space - * ID. - * - * RETURNS - * Pointer to matching XcmsColorSpace structure if found; - * otherwise NULL. - */ -{ - XcmsColorSpace **papColorSpaces; - - if (ccc == NULL) { - return(NULL); - } - - /* - * First try Device-Independent color spaces - */ - papColorSpaces = _XcmsDIColorSpaces; - if (papColorSpaces != NULL) { - while (*papColorSpaces != NULL) { - if ((*papColorSpaces)->id == id) { - return(*papColorSpaces); - } - papColorSpaces++; - } - } - - /* - * Next try Device-Dependent color spaces - */ - papColorSpaces = ((XcmsFunctionSet *)ccc->pPerScrnInfo->functionSet)->DDColorSpaces; - if (papColorSpaces != NULL) { - while (*papColorSpaces != NULL) { - if ((*papColorSpaces)->id == id) { - return(*papColorSpaces); - } - papColorSpaces++; - } - } - - return(NULL); -} - - -/* - * NAME - * ValidDIColorSpaceID - * - * SYNOPSIS - */ -static int -ValidDIColorSpaceID( - XcmsColorFormat id) -/* - * DESCRIPTION - * Determines if the specified color space ID is a valid - * Device-Independent color space in the specified Color - * Conversion Context. - * - * RETURNS - * Returns zero if not valid; otherwise non-zero. - */ -{ - XcmsColorSpace **papRec; - papRec = _XcmsDIColorSpaces; - if (papRec != NULL) { - while (*papRec != NULL) { - if ((*papRec)->id == id) { - return(1); - } - papRec++; - } - } - return(0); -} - - -/* - * NAME - * ValidDDColorSpaceID - * - * SYNOPSIS - */ -static int -ValidDDColorSpaceID( - XcmsCCC ccc, - XcmsColorFormat id) -/* - * DESCRIPTION - * Determines if the specified color space ID is a valid - * Device-Dependent color space in the specified Color - * Conversion Context. - * - * RETURNS - * Returns zero if not valid; otherwise non-zero. - */ -{ - XcmsColorSpace **papRec; - - if (ccc->pPerScrnInfo->state != XcmsInitNone) { - papRec = ((XcmsFunctionSet *)ccc->pPerScrnInfo->functionSet)->DDColorSpaces; - while (*papRec != NULL) { - if ((*papRec)->id == id) { - return(1); - } - papRec++; - } - } - return(0); -} - - -/* - * NAME - * ConvertMixedColors - Convert XcmsColor structures - * - * SYNOPSIS - */ -static Status -ConvertMixedColors( - XcmsCCC ccc, - XcmsColor *pColors_in_out, - XcmsColor *pWhitePt, - unsigned int nColors, - XcmsColorFormat targetFormat, - unsigned char format_flag) -/* - * DESCRIPTION - * This routine will only convert the following types of - * batches: - * DI to DI - * DD to DD - * DD to CIEXYZ - * In other words, it will not convert the following types of - * batches: - * DI to DD - * DD to DI(not CIEXYZ) - * - * format_flag: - * 0x01 : convert Device-Dependent only specifications to the - * target format. - * 0x02 : convert Device-Independent only specifications to the - * target format. - * 0x03 : convert all specifications to the target format. - * - * RETURNS - * XcmsFailure if failed, - * XcmsSuccess if none of the color specifications were - * compressed in the conversion process - * XcmsSuccessWithCompression if at least one of the - * color specifications were compressed in the - * conversion process. - * - */ -{ - XcmsColor *pColor, *pColors_start; - XcmsColorFormat format; - Status retval_tmp; - Status retval = XcmsSuccess; - unsigned int iColors; - unsigned int nBatch; - - /* - * Convert array of mixed color specifications in batches of - * contiguous formats to the target format - */ - iColors = 0; - while (iColors < nColors) { - /* - * Find contiguous array of color specifications with the - * same format - */ - pColor = pColors_start = pColors_in_out + iColors; - format = pColors_start->format; - nBatch = 0; - while (iColors < nColors && pColor->format == format) { - pColor++; - nBatch++; - iColors++; - } - if (format != targetFormat) { - /* - * Need to convert this batch from current format to target format. - */ - if (XCMS_DI_ID(format) && (format_flag & DI_FORMAT) && - XCMS_DI_ID(targetFormat)) { - /* - * DI->DI - * - * Format of interest is Device-Independent, - * This batch contains Device-Independent specifications, and - * the Target format is Device-Independent. - */ - retval_tmp = _XcmsDIConvertColors(ccc, pColors_start, pWhitePt, - nBatch, targetFormat); - } else if (XCMS_DD_ID(format) && (format_flag & DD_FORMAT) && - (targetFormat == XcmsCIEXYZFormat)) { - /* - * DD->CIEXYZ - * - * Format of interest is Device-Dependent, - * This batch contains Device-Dependent specifications, and - * the Target format is CIEXYZ. - * - * Since DD->CIEXYZ we can use NULL instead of pCompressed. - */ - if ((ccc->whitePtAdjProc != NULL) && !_XcmsEqualWhitePts(ccc, - pWhitePt, ScreenWhitePointOfCCC(ccc))) { - /* - * Need to call WhiteAdjustProc (Screen White Point to - * White Point). - */ - retval_tmp = (*ccc->whitePtAdjProc)(ccc, - ScreenWhitePointOfCCC(ccc), pWhitePt, - XcmsCIEXYZFormat, pColors_start, nBatch, - (Bool *)NULL); - } else { - retval_tmp = _XcmsDDConvertColors(ccc, pColors_start, - nBatch, XcmsCIEXYZFormat, (Bool *)NULL); - } - } else if (XCMS_DD_ID(format) && (format_flag & DD_FORMAT) && - XCMS_DD_ID(targetFormat)) { - /* - * DD->DD(not CIEXYZ) - * - * Format of interest is Device-Dependent, - * This batch contains Device-Dependent specifications, and - * the Target format is Device-Dependent and not CIEXYZ. - */ - retval_tmp = _XcmsDDConvertColors(ccc, pColors_start, nBatch, - targetFormat, (Bool *)NULL); - } else { - /* - * This routine is called for the wrong reason. - */ - return(XcmsFailure); - } - if (retval_tmp == XcmsFailure) { - return(XcmsFailure); - } - retval = MAX(retval, retval_tmp); - } - } - return(retval); -} - - -/************************************************************************ - * * - * API PRIVATE ROUTINES * - * * - ************************************************************************/ - -/* - * NAME - * _XcmsEqualWhitePts - * - * SYNOPSIS - */ -int -_XcmsEqualWhitePts(XcmsCCC ccc, XcmsColor *pWhitePt1, XcmsColor *pWhitePt2) -/* - * DESCRIPTION - * - * RETURNS - * Returns 0 if not equal; otherwise 1. - * - */ -{ - XcmsColor tmp1, tmp2; - - memcpy((char *)&tmp1, (char *)pWhitePt1, sizeof(XcmsColor)); - memcpy((char *)&tmp2, (char *)pWhitePt2, sizeof(XcmsColor)); - - if (tmp1.format != XcmsCIEXYZFormat) { - if (_XcmsDIConvertColors(ccc, &tmp1, (XcmsColor *) NULL, 1, - XcmsCIEXYZFormat)==0) { - return(0); - } - } - - if (tmp2.format != XcmsCIEXYZFormat) { - if (_XcmsDIConvertColors(ccc, &tmp2, (XcmsColor *) NULL, 1, - XcmsCIEXYZFormat)==0) { - return(0); - } - } - - return (EqualCIEXYZ(&tmp1, &tmp2)); -} - - -/* - * NAME - * _XcmsDIConvertColors - Convert XcmsColor structures - * - * SYNOPSIS - */ -Status -_XcmsDIConvertColors( - XcmsCCC ccc, - XcmsColor *pColors_in_out, - XcmsColor *pWhitePt, - unsigned int nColors, - XcmsColorFormat newFormat) -/* - * DESCRIPTION - * Convert XcmsColor structures to another Device-Independent - * form. - * - * Here are some assumptions that this routine makes: - * 1. The calling routine has already checked if - * pColors_in_out->format == newFormat, therefore - * there is no need to check again here. - * 2. The calling routine has already checked nColors, - * therefore this routine assumes nColors > 0. - * 3. The calling routine may want to convert only between - * CIExyY <-> CIEXYZ <-> CIEuvY - * therefore, this routine allows pWhitePt to equal NULL. - * - * - * RETURNS - * XcmsFailure if failed, - * XcmsSuccess if succeeded. - * - */ -{ - XcmsColorSpace *pFrom, *pTo; - XcmsDIConversionProc *src_to_CIEXYZ, *src_from_CIEXYZ; - XcmsDIConversionProc *dest_to_CIEXYZ, *dest_from_CIEXYZ; - XcmsDIConversionProc *to_CIEXYZ_stop, *from_CIEXYZ_start; - XcmsDIConversionProc *tmp; - - /* - * Allow pWhitePt to equal NULL. This appropriate when converting - * anywhere between: - * CIExyY <-> CIEXYZ <-> CIEuvY - */ - - if (pColors_in_out == NULL || - !ValidDIColorSpaceID(pColors_in_out->format) || - !ValidDIColorSpaceID(newFormat)) { - return(XcmsFailure); - } - - /* - * Get a handle on the function list for the current specification format - */ - if ((pFrom = ColorSpaceOfID(ccc, pColors_in_out->format)) - == NULL) { - return(XcmsFailure); - } - - /* - * Get a handle on the function list for the new specification format - */ - if ((pTo = ColorSpaceOfID(ccc, newFormat)) == NULL) { - return(XcmsFailure); - } - - src_to_CIEXYZ = pFrom->to_CIEXYZ; - src_from_CIEXYZ = pFrom->from_CIEXYZ; - dest_to_CIEXYZ = pTo->to_CIEXYZ; - dest_from_CIEXYZ = pTo->from_CIEXYZ; - - if (pTo->inverse_flag && pFrom->inverse_flag) { - /* - * Find common function pointers - */ - for (to_CIEXYZ_stop = src_to_CIEXYZ; *to_CIEXYZ_stop; to_CIEXYZ_stop++){ - for (tmp = dest_to_CIEXYZ; *tmp; tmp++) { - if (*to_CIEXYZ_stop == *tmp) { - goto Continue; - } - } - } - -Continue: - - /* - * Execute the functions to CIEXYZ, stopping short as necessary - */ - while (src_to_CIEXYZ != to_CIEXYZ_stop) { - if ((*src_to_CIEXYZ++)(ccc, pWhitePt, pColors_in_out, - nColors) == XcmsFailure) { - return(XcmsFailure); - } - } - - /* - * Determine where to start on the from_CIEXYZ path. - */ - from_CIEXYZ_start = dest_from_CIEXYZ; - tmp = src_from_CIEXYZ; - while ((*from_CIEXYZ_start == *tmp) && (*from_CIEXYZ_start != NULL)) { - from_CIEXYZ_start++; - tmp++; - } - - } else { - /* - * The function in at least one of the Color Spaces are not - * complementary, i.e., - * for an i, 0 <= i < n elements - * from_CIEXYZ[i] is not the inverse of to_CIEXYZ[i] - * - * Execute the functions all the way to CIEXYZ - */ - while (*src_to_CIEXYZ) { - if ((*src_to_CIEXYZ++)(ccc, pWhitePt, pColors_in_out, - nColors) == XcmsFailure) { - return(XcmsFailure); - } - } - - /* - * Determine where to start on the from_CIEXYZ path. - */ - from_CIEXYZ_start = dest_from_CIEXYZ; - } - - - /* - * Execute the functions from CIEXYZ. - */ - while (*from_CIEXYZ_start) { - if ((*from_CIEXYZ_start++)(ccc, pWhitePt, pColors_in_out, - nColors) == XcmsFailure) { - return(XcmsFailure); - } - } - - return(XcmsSuccess); -} - - -/* - * NAME - * _XcmsDDConvertColors - Convert XcmsColor structures - * - * SYNOPSIS - */ -Status -_XcmsDDConvertColors( - XcmsCCC ccc, - XcmsColor *pColors_in_out, - unsigned int nColors, - XcmsColorFormat newFormat, - Bool *pCompressed) -/* - * DESCRIPTION - * Convert XcmsColor structures: - * - * 1. From CIEXYZ to Device-Dependent formats (typically RGB and - * RGBi), - * or - * 2. Between Device-Dependent formats (typically RGB and RGBi). - * - * Assumes that these specifications have already been white point - * adjusted if necessary from Client White Point to Screen - * White Point. Therefore, the white point now associated - * with the specifications is the Screen White Point. - * - * pCompressed may be NULL. If so this indicates that the - * calling routine is not interested in knowing exactly which - * color was compressed, if any. - * - * - * RETURNS - * XcmsFailure if failed, - * XcmsSuccess if none of the color specifications were - * compressed in the conversion process - * XcmsSuccessWithCompression if at least one of the - * color specifications were compressed in the - * conversion process. - * - */ -{ - XcmsColorSpace *pFrom, *pTo; - XcmsDDConversionProc *src_to_CIEXYZ, *src_from_CIEXYZ; - XcmsDDConversionProc *dest_to_CIEXYZ, *dest_from_CIEXYZ; - XcmsDDConversionProc *from_CIEXYZ_start, *to_CIEXYZ_stop; - XcmsDDConversionProc *tmp; - int retval; - int hasCompressed = 0; - - if (ccc == NULL || pColors_in_out == NULL) { - return(XcmsFailure); - } - - if (nColors == 0 || pColors_in_out->format == newFormat) { - /* do nothing */ - return(XcmsSuccess); - } - - if (((XcmsFunctionSet *)ccc->pPerScrnInfo->functionSet) == NULL) { - return(XcmsFailure); /* hmm, an internal error? */ - } - - /* - * Its ok if pColors_in_out->format == XcmsCIEXYZFormat - * or - * if newFormat == XcmsCIEXYZFormat - */ - if ( !( ValidDDColorSpaceID(ccc, pColors_in_out->format) - || - (pColors_in_out->format == XcmsCIEXYZFormat)) - || - !(ValidDDColorSpaceID(ccc, newFormat) - || - newFormat == XcmsCIEXYZFormat)) { - return(XcmsFailure); - } - - if ((pFrom = ColorSpaceOfID(ccc, pColors_in_out->format)) == NULL){ - return(XcmsFailure); - } - - if ((pTo = ColorSpaceOfID(ccc, newFormat)) == NULL) { - return(XcmsFailure); - } - - src_to_CIEXYZ = (XcmsDDConversionProc *)pFrom->to_CIEXYZ; - src_from_CIEXYZ = (XcmsDDConversionProc *)pFrom->from_CIEXYZ; - dest_to_CIEXYZ = (XcmsDDConversionProc *)pTo->to_CIEXYZ; - dest_from_CIEXYZ = (XcmsDDConversionProc *)pTo->from_CIEXYZ; - - if (pTo->inverse_flag && pFrom->inverse_flag) { - /* - * Find common function pointers - */ - for (to_CIEXYZ_stop = src_to_CIEXYZ; *to_CIEXYZ_stop; to_CIEXYZ_stop++){ - for (tmp = dest_to_CIEXYZ; *tmp; tmp++) { - if (*to_CIEXYZ_stop == *tmp) { - goto Continue; - } - } - } -Continue: - - /* - * Execute the functions - */ - while (src_to_CIEXYZ != to_CIEXYZ_stop) { - retval = (*src_to_CIEXYZ++)(ccc, pColors_in_out, nColors, - pCompressed); - if (retval == XcmsFailure) { - return(XcmsFailure); - } - hasCompressed |= (retval == XcmsSuccessWithCompression); - } - - /* - * Determine where to start on the from_CIEXYZ path. - */ - from_CIEXYZ_start = dest_from_CIEXYZ; - tmp = src_from_CIEXYZ; - while ((*from_CIEXYZ_start == *tmp) && (*from_CIEXYZ_start != NULL)) { - from_CIEXYZ_start++; - tmp++; - } - - } else { - /* - * The function in at least one of the Color Spaces are not - * complementary, i.e., - * for an i, 0 <= i < n elements - * from_CIEXYZ[i] is not the inverse of to_CIEXYZ[i] - * - * Execute the functions all the way to CIEXYZ - */ - while (*src_to_CIEXYZ) { - retval = (*src_to_CIEXYZ++)(ccc, pColors_in_out, nColors, - pCompressed); - if (retval == XcmsFailure) { - return(XcmsFailure); - } - hasCompressed |= (retval == XcmsSuccessWithCompression); - } - - /* - * Determine where to start on the from_CIEXYZ path. - */ - from_CIEXYZ_start = dest_from_CIEXYZ; - } - - while (*from_CIEXYZ_start) { - retval = (*from_CIEXYZ_start++)(ccc, pColors_in_out, nColors, - pCompressed); - if (retval == XcmsFailure) { - return(XcmsFailure); - } - hasCompressed |= (retval == XcmsSuccessWithCompression); - } - - return(hasCompressed ? XcmsSuccessWithCompression : XcmsSuccess); -} - - -/************************************************************************ - * * - * PUBLIC ROUTINES * - * * - ************************************************************************/ - -/* - * NAME - * XcmsConvertColors - Convert XcmsColor structures - * - * SYNOPSIS - */ -Status -XcmsConvertColors( - XcmsCCC ccc, - XcmsColor *pColors_in_out, - unsigned int nColors, - XcmsColorFormat targetFormat, - Bool *pCompressed) -/* - * DESCRIPTION - * Convert XcmsColor structures to another format - * - * RETURNS - * XcmsFailure if failed, - * XcmsSuccess if succeeded without gamut compression, - * XcmsSuccessWithCompression if succeeded with gamut - * compression. - * - */ -{ - XcmsColor clientWhitePt; - XcmsColor Color1; - XcmsColor *pColors_tmp; - int callWhiteAdjustProc = 0; - XcmsColorFormat format; - Status retval; - unsigned char contents_flag = 0x00; - unsigned int iColors; - - if (ccc == NULL || pColors_in_out == NULL || - !(ValidDIColorSpaceID(targetFormat) || - ValidDDColorSpaceID(ccc, targetFormat))) { - return(XcmsFailure); - } - - /* - * Check formats in color specification array - */ - format = pColors_in_out->format; - for (pColors_tmp = pColors_in_out, iColors = nColors; iColors; pColors_tmp++, iColors--) { - if (!(ValidDIColorSpaceID(pColors_tmp->format) || - ValidDDColorSpaceID(ccc, pColors_tmp->format))) { - return(XcmsFailure); - } - if (XCMS_DI_ID(pColors_tmp->format)) { - contents_flag |= DI_FORMAT; - } else { - contents_flag |= DD_FORMAT; - } - if (pColors_tmp->format != format) { - contents_flag |= MIX_FORMAT; - } - } - - /* - * Check if we need the Client White Point. - */ - if ((contents_flag & DI_FORMAT) || XCMS_DI_ID(targetFormat)) { - /* To proceed, we need to get the Client White Point */ - memcpy((char *)&clientWhitePt, (char *)&ccc->clientWhitePt, - sizeof(XcmsColor)); - if (clientWhitePt.format == XcmsUndefinedFormat) { - /* - * Client White Point is undefined, therefore set to the Screen - * White Point. - * Since Client White Point == Screen White Point, WhiteAdjustProc - * is not called. - */ - memcpy((char *)&clientWhitePt, - (char *)&ccc->pPerScrnInfo->screenWhitePt, - sizeof(XcmsColor)); - } else if ((ccc->whitePtAdjProc != NULL) && !_XcmsEqualWhitePts(ccc, - &clientWhitePt, ScreenWhitePointOfCCC(ccc))) { - /* - * Client White Point != Screen White Point, and WhiteAdjustProc - * is not NULL, therefore, will need to call it when - * converting between DI and DD specifications. - */ - callWhiteAdjustProc = 1; - } - } - - /* - * Make copy of array of color specifications - */ - if (nColors > 1) { - pColors_tmp = Xmalloc(nColors * sizeof(XcmsColor)); - } else { - pColors_tmp = &Color1; - } - memcpy((char *)pColors_tmp, (char *)pColors_in_out, - nColors * sizeof(XcmsColor)); - - /* - * zero out pCompressed - */ - if (pCompressed) { - bzero((char *)pCompressed, nColors * sizeof(Bool)); - } - - if (contents_flag == DD_FORMAT || contents_flag == DI_FORMAT) { - /* - * ENTIRE ARRAY IS IN ONE FORMAT. - */ - if (XCMS_DI_ID(format) && XCMS_DI_ID(targetFormat)) { - /* - * DI-to-DI only conversion - */ - retval = _XcmsDIConvertColors(ccc, pColors_tmp, - &clientWhitePt, nColors, targetFormat); - } else if (XCMS_DD_ID(format) && XCMS_DD_ID(targetFormat)) { - /* - * DD-to-DD only conversion - * Since DD->DD there will be no compressed thus we can - * pass NULL instead of pCompressed. - */ - retval = _XcmsDDConvertColors(ccc, pColors_tmp, nColors, - targetFormat, (Bool *)NULL); - } else { - /* - * Otherwise we have: - * 1. Device-Independent to Device-Dependent Conversion - * OR - * 2. Device-Dependent to Device-Independent Conversion - * - * We need to go from oldFormat -> CIEXYZ -> targetFormat - * adjusting for white points as necessary. - */ - - if (XCMS_DI_ID(format)) { - /* - * 1. Device-Independent to Device-Dependent Conversion - */ - if (callWhiteAdjustProc) { - /* - * White Point Adjustment - * Client White Point to Screen White Point - */ - retval = (*ccc->whitePtAdjProc)(ccc, &clientWhitePt, - ScreenWhitePointOfCCC(ccc), targetFormat, - pColors_tmp, nColors, pCompressed); - } else { - if (_XcmsDIConvertColors(ccc, pColors_tmp, - &clientWhitePt, nColors, XcmsCIEXYZFormat) - == XcmsFailure) { - goto Failure; - } - retval = _XcmsDDConvertColors(ccc, pColors_tmp, nColors, - targetFormat, pCompressed); - } - } else { - /* - * 2. Device-Dependent to Device-Independent Conversion - */ - if (callWhiteAdjustProc) { - /* - * White Point Adjustment - * Screen White Point to Client White Point - */ - retval = (*ccc->whitePtAdjProc)(ccc, - ScreenWhitePointOfCCC(ccc), &clientWhitePt, - targetFormat, pColors_tmp, nColors, pCompressed); - } else { - /* - * Since DD->CIEXYZ, no compression takes place therefore - * we can pass NULL instead of pCompressed. - */ - if (_XcmsDDConvertColors(ccc, pColors_tmp, nColors, - XcmsCIEXYZFormat, (Bool *)NULL) == XcmsFailure) { - goto Failure; - } - retval = _XcmsDIConvertColors(ccc, pColors_tmp, - &clientWhitePt, nColors, targetFormat); - } - } - } - } else { - /* - * ARRAY HAS MIXED FORMATS. - */ - if ((contents_flag == (DI_FORMAT | MIX_FORMAT)) && - XCMS_DI_ID(targetFormat)) { - /* - * Convert from DI to DI in batches of contiguous formats - * - * Because DI->DI, WhiteAdjustProc not called. - */ - retval = ConvertMixedColors(ccc, pColors_tmp, &clientWhitePt, - nColors, targetFormat, (unsigned char)DI_FORMAT); - } else if ((contents_flag == (DD_FORMAT | MIX_FORMAT)) && - XCMS_DD_ID(targetFormat)) { - /* - * Convert from DD to DD in batches of contiguous formats - * - * Because DD->DD, WhiteAdjustProc not called. - */ - retval = ConvertMixedColors(ccc, pColors_tmp, - (XcmsColor *)NULL, nColors, targetFormat, - (unsigned char)DD_FORMAT); - } else if (XCMS_DI_ID(targetFormat)) { - /* - * We need to convert from DI-to-DI and DD-to-DI, therefore - * 1. convert DD specifications to CIEXYZ, then - * 2. convert all in batches to the target DI format. - * - * Note that ConvertMixedColors will call WhiteAdjustProc - * as necessary. - */ - - /* - * Convert only DD specifications in batches of contiguous formats - * to CIEXYZ - * - * Since DD->CIEXYZ, ConvertMixedColors will apply WhiteAdjustProc - * if required. - */ - retval = ConvertMixedColors(ccc, pColors_tmp, &clientWhitePt, - nColors, XcmsCIEXYZFormat, (unsigned char)DD_FORMAT); - - /* - * Because at this point we may have a mix of DI formats - * (e.g., CIEXYZ, CIELuv) we must convert the specs to the - * target DI format in batches of contiguous source formats. - */ - retval = ConvertMixedColors(ccc, pColors_tmp, &clientWhitePt, - nColors, targetFormat, (unsigned char)DI_FORMAT); - } else { - /* - * We need to convert from DI-to-DD and DD-to-DD, therefore - * 1. convert DI specifications to CIEXYZ, then - * 2. convert all to the DD target format. - * - * This allows white point adjustment and gamut compression - * to be applied to all the color specifications in one - * swoop if those functions do in fact modify the entire - * group of color specifications. - */ - - /* - * Convert in batches to CIEXYZ - * - * If DD->CIEXYZ, ConvertMixedColors will apply WhiteAdjustProc - * if required. - */ - if ((retval = ConvertMixedColors(ccc, pColors_tmp, &clientWhitePt, - nColors, XcmsCIEXYZFormat, - (unsigned char)(DI_FORMAT | DD_FORMAT))) == XcmsFailure) { - goto Failure; - } - - /* - * Convert all specifications (now in CIEXYZ format) to - * the target DD format. - * Since CIEXYZ->DD, compression MAY take place therefore - * we must pass pCompressed. - * Note that WhiteAdjustProc must be used if necessary. - */ - if (callWhiteAdjustProc) { - /* - * White Point Adjustment - * Client White Point to Screen White Point - */ - retval = (*ccc->whitePtAdjProc)(ccc, - &clientWhitePt, ScreenWhitePointOfCCC(ccc), - targetFormat, pColors_tmp, nColors, pCompressed); - } else { - retval = _XcmsDDConvertColors(ccc, pColors_tmp, nColors, - targetFormat, pCompressed); - } - } - } - - if (retval != XcmsFailure) { - memcpy((char *)pColors_in_out, (char *)pColors_tmp, - nColors * sizeof(XcmsColor)); - } - if (nColors > 1) { - Xfree(pColors_tmp); - } - return(retval); - -Failure: - if (nColors > 1) { - Xfree(pColors_tmp); - } - return(XcmsFailure); -} - - -/* - * NAME - * XcmsRegFormatOfPrefix - * - * SYNOPSIS - */ -XcmsColorFormat -_XcmsRegFormatOfPrefix( - _Xconst char *prefix) -/* - * DESCRIPTION - * Returns a color space ID associated with the specified - * X Consortium registered color space prefix. - * - * RETURNS - * The color space ID if found; - * otherwise NULL. - */ -{ - XcmsRegColorSpaceEntry *pEntry = _XcmsRegColorSpaces; - - while (pEntry->prefix != NULL) { - if (strcmp(prefix, pEntry->prefix) == 0) { - return(pEntry->id); - } - pEntry++; - } - return(XcmsUndefinedFormat); -} |