e964eb17a0
+ "debug.h": Defines whether debugging printf() calls should be enabled. + "dirwalk.c/h": Callback functions for recursive directory traversal. + "fonts.c/h": Font loading/grouping/discarding variables and functions. + "get_fname.c/h": Functions for constructing preferred file paths.
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/*
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rgblinear.c
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For Tux Paint
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RGB to Linear and Linear to RGB functions
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Copyright (c) 2002-2006 by Bill Kendrick and others
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bill@newbreedsoftware.com
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http://www.newbreedsoftware.com/tuxpaint/
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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(See COPYING.txt)
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June 14, 2002 - February 18, 2006
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$Id$
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*/
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#include "rgblinear.h"
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#include "debug.h"
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unsigned char linear_to_sRGB (float linear)
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{
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unsigned slot;
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slot = linear*4096.0 + 0.5;
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if(slot>4095)
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{
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if(linear>0.5)
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slot = 4095;
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else
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slot = 0;
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}
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return linear_to_sRGB_table[slot];
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}
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