diff options
Diffstat (limited to 'src/xcms/SetGetCols.c')
| -rw-r--r-- | src/xcms/SetGetCols.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/src/xcms/SetGetCols.c b/src/xcms/SetGetCols.c new file mode 100644 index 0000000..5ee6898 --- /dev/null +++ b/src/xcms/SetGetCols.c @@ -0,0 +1,201 @@ +/* $Xorg: SetGetCols.c,v 1.3 2000/08/17 19:44:54 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 + * XcmsSetGet.c + * + * DESCRIPTION + * Source for _XcmsSetGetColors() + * + * + */ + +/* + * EXTERNAL INCLUDES + * Include files that must be exported to any package or + * program using this package. + */ +#include "Xlibint.h" +#include "Xcmsint.h" + + +/* + * EXTERNS + */ + +extern void _XcmsRGB_to_XColor(); +extern void _XColor_to_XcmsRGB(); + + + +/************************************************************************ + * * + * API PRIVATE ROUTINES * + * * + ************************************************************************/ + +/* + * NAME + * XcmsSetColors - + * + * SYNOPSIS + */ +Status +_XcmsSetGetColors(xColorProc, dpy, cmap, pColors_in_out, nColors, + result_format, pCompressed) + Status (*xColorProc)(); + Display *dpy; + Colormap cmap; + XcmsColor *pColors_in_out; + unsigned int nColors; + XcmsColorFormat result_format; + Bool *pCompressed; +/* + * DESCRIPTION + * Routine containing code common to: + * XcmsAllocColor + * XcmsQueryColor + * XcmsQueryColors + * XcmsStoreColor + * XcmsStoreColors + * + * RETURNS + * XcmsFailure if failed; + * XcmsSuccess if it succeeded without gamut compression; + * XcmsSuccessWithCompression if it succeeded with gamut + * compression; + */ +{ + XcmsCCC ccc; + XColor *pXColors_in_out; + Status retval = XcmsSuccess; + + /* + * Argument Checking + * 1. Assume xColorProc is correct + * 2. Insure ccc not NULL + * 3. Assume cmap correct (should be checked by Server) + * 4. Insure pColors_in_out valid + * 5. Assume method_in is valid (should be checked by Server) + * 6. Insure nColors > 0 + */ + + if (dpy == NULL) { + return(XcmsFailure); + } + + if (nColors == 0) { + return(XcmsSuccess); + } + + if (result_format == XcmsUndefinedFormat) { + return(XcmsFailure); + } + + if (!((*xColorProc == XAllocColor) || (*xColorProc == XStoreColor) + || (*xColorProc == XStoreColors) || (*xColorProc == XQueryColor) + || (*xColorProc == XQueryColors))) { + return(XcmsFailure); + } + + if ((ccc = XcmsCCCOfColormap(dpy, cmap)) == (XcmsCCC)NULL) { + return(XcmsFailure); + } + + if ((*xColorProc == XAllocColor) || (*xColorProc == XStoreColor) + || (*xColorProc == XQueryColor)) { + nColors = 1; + } + + /* + * Allocate space for XColors + */ + if ((pXColors_in_out = (XColor *)Xcalloc(nColors, sizeof(XColor))) == + NULL) { + return(XcmsFailure); + } + + if ((*xColorProc == XQueryColor) || (*xColorProc == XQueryColors)) { + goto Query; + } + /* + * Convert to RGB, adjusting for white point differences if necessary. + */ + if ((retval = XcmsConvertColors(ccc, pColors_in_out, nColors, XcmsRGBFormat, + pCompressed)) == XcmsFailure) { + return(XcmsFailure); + } + +Query: + /* + * Convert XcmsColor to XColor structures + */ + _XcmsRGB_to_XColor(pColors_in_out, pXColors_in_out, nColors); + + /* + * Now make appropriate X Call + */ + if (*xColorProc == XAllocColor) { + if ((*xColorProc)(ccc->dpy, cmap, pXColors_in_out) == 0) { + Xfree((char *)pXColors_in_out); + return(XcmsFailure); + } + } else if ((*xColorProc == XQueryColor) || (*xColorProc == XStoreColor)) { + /* Note: XQueryColor and XStoreColor do not return any Status */ + (*xColorProc)(ccc->dpy, cmap, pXColors_in_out); + } else if ((*xColorProc == XQueryColors) || (*xColorProc == XStoreColors)){ + /* Note: XQueryColors and XStoreColors do not return any Status */ + (*xColorProc)(ccc->dpy, cmap, pXColors_in_out, nColors); + } else { + Xfree((char *)pXColors_in_out); + return(XcmsFailure); + } + + if ((*xColorProc == XStoreColor) || (*xColorProc == XStoreColors)) { + Xfree((char *)pXColors_in_out); + return(retval); + } + + /* + * Now, convert returned XColor(i.e., rgb) to XcmsColor structures + */ + _XColor_to_XcmsRGB(ccc, pXColors_in_out, pColors_in_out, nColors); + Xfree((char *)pXColors_in_out); + + /* + * Then, convert XcmsColor structures to the original specification + * format. Note that we must use NULL instead of passing + * pCompressed. + */ + + if (result_format != XcmsRGBFormat) { + if (XcmsConvertColors(ccc, pColors_in_out, nColors, result_format, + (Bool *) NULL) == XcmsFailure) { + return(XcmsFailure); + } + } + return(retval); +} |