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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@13249 72102866-910b-0410-8b05-ffd578937521
59 lines
2 KiB
C
59 lines
2 KiB
C
/* xrtools - Color conversion routines and other low-level X support
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Copyright (C) 1995 Free Software Foundation, Inc.
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Written by: Adam Fedor <fedor@boulder.colorado.edu>
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Date: Nov 1994
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This file is part of the GNU Objective C User Interface Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA.
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*/
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#ifndef _xrtools_h_INCLUDE
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#define _xrtools_h_INCLUDE
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#ifdef HAVE_WRASTER_H
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#include "wraster.h"
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#else
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#include "x11/wraster.h"
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#endif
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typedef enum {
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gray_colorspace, rgb_colorspace, hsb_colorspace, cmyk_colorspace
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} xr_device_colorspace_t;
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typedef struct _xr_device_color {
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xr_device_colorspace_t space;
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float field[6];
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} xr_device_color_t;
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/* Internal conversion of colors to pixels values */
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extern u_long xrGrayToPixel(RContext * context, float gray);
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extern u_long xrRGBToPixel(RContext * context, float red,
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float green, float blue);
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extern u_long xrHSBToPixel(RContext * context, float h, float s, float b);
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extern u_long xrCMYKToPixel(RContext * context, float c, float m,
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float y, float k);
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extern u_long xrColorToPixel(RContext * context, xr_device_color_t color);
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extern xr_device_color_t xrConvertToGray(xr_device_color_t color);
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extern xr_device_color_t xrConvertToRGB(xr_device_color_t color);
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extern xr_device_color_t xrConvertToHSB(xr_device_color_t color);
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extern xr_device_color_t xrConvertToCMYK(xr_device_color_t color);
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#endif
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