/* $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() * * */ /* $XFree86: xc/lib/X11/SetGetCols.c,v 1.2 2003/04/13 19:22:17 dawes Exp $ */ /* * EXTERNAL INCLUDES * Include files that must be exported to any package or * program using this package. */ #include "Xlibint.h" #include "Xcmsint.h" #include "Cv.h" /************************************************************************ * * * API PRIVATE ROUTINES * * * ************************************************************************/ /* * NAME * XcmsSetColor - * * SYNOPSIS */ Status _XcmsSetGetColor( Status (*xColorProc)( Display* /* display */, Colormap /* colormap */, XColor* /* screen_in_out */), Display *dpy, Colormap cmap, XcmsColor *pColors_in_out, XcmsColorFormat result_format, Bool *pCompressed) /* * DESCRIPTION * Routine containing code common to: * XcmsAllocColor * XcmsQueryColor * XcmsStoreColor * * RETURNS * XcmsFailure if failed; * XcmsSuccess if it succeeded without gamut compression; * XcmsSuccessWithCompression if it succeeded with gamut * compression; */ { XcmsCCC ccc; XColor XColors_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) */ if (dpy == NULL) { return(XcmsFailure); } if (result_format == XcmsUndefinedFormat) { return(XcmsFailure); } if ( !((*xColorProc == XAllocColor) || (*xColorProc == XStoreColor) || (*xColorProc == XQueryColor)) ) { return(XcmsFailure); } if ((ccc = XcmsCCCOfColormap(dpy, cmap)) == (XcmsCCC)NULL) { return(XcmsFailure); } if (*xColorProc == XQueryColor) { goto Query; } /* * Convert to RGB, adjusting for white point differences if necessary. */ if ((retval = XcmsConvertColors(ccc, pColors_in_out, 1, XcmsRGBFormat, pCompressed)) == XcmsFailure) { return(XcmsFailure); } Query: /* * Convert XcmsColor to XColor structures */ _XcmsRGB_to_XColor(pColors_in_out, &XColors_in_out, 1); /* * Now make appropriate X Call */ if (*xColorProc == XAllocColor) { if ((*xColorProc)(ccc->dpy, cmap, &XColors_in_out) == 0) { return(XcmsFailure); } } else if ((*xColorProc == XQueryColor) || (*xColorProc == XStoreColor)) { /* Note: XQueryColor and XStoreColor do not return any Status */ (*xColorProc)(ccc->dpy, cmap, &XColors_in_out); } else { return(XcmsFailure); } if ((*xColorProc == XStoreColor)) { return(retval); } /* * Now, convert the returned XColor (i.e., rgb) to XcmsColor structures */ _XColor_to_XcmsRGB(ccc, &XColors_in_out, pColors_in_out, 1); /* * 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, 1, result_format, (Bool *) NULL) == XcmsFailure) { return(XcmsFailure); } } return(retval); } /* * NAME * XcmsSetColors - * * SYNOPSIS */ Status _XcmsSetGetColors( Status (*xColorProc)( Display* /* display */, Colormap /* colormap */, XColor* /* screen_in_out */, int /* nColors */), Display *dpy, Colormap cmap, XcmsColor *pColors_in_out, int nColors, XcmsColorFormat result_format, Bool *pCompressed) /* * DESCRIPTION * Routine containing code common to: * XcmsQueryColors * 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 == XStoreColors) || (*xColorProc == XQueryColors)) ) { return(XcmsFailure); } if ((ccc = XcmsCCCOfColormap(dpy, cmap)) == (XcmsCCC)NULL) { return(XcmsFailure); } /* * Allocate space for XColors */ if ((pXColors_in_out = (XColor *)Xcalloc(nColors, sizeof(XColor))) == NULL) { return(XcmsFailure); } if (*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) { Xfree((char *)pXColors_in_out); 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 == 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 == XStoreColors) { Xfree((char *)pXColors_in_out); return(retval); } /* * Now, convert the 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); } /* ### EOF ### */