102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
/* dispdither.h
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*
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* (c) 1995 Erik Corry. ehcorry@inet.uni-c.dk erik@kroete2.freinet.de
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*
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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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*
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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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*
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* This contains routines which dither or convert image data from 8 or
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* 24 bit input data to 1/2/4/8/16/24/32 bit output, possibly dithered.
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*/
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#ifndef DISPDITHER_H_INCLUDED
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#define DISPDITHER_H_INCLUDED
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#include "colorcube.h"
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/*
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* ddt_dither_fn is a pointer to a function returning void
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*/
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typedef void (*ddt_dither_fn)();
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/*
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* 4, 8, 16 obpp
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*/
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void
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ddf_color_dither_line_24(
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cct_dither_table table,
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unsigned char *input,
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unsigned char *output,
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int output_bits_per_pixel,
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int pixel_count);
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/*
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* 1, 2, 4, 8, 16 obpp
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*/
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void
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ddf_gray_dither_line_24(
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cct_dither_table table,
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unsigned char *input,
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unsigned char *output,
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int output_bits_per_pixel,
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int pixel_count);
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/*
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* 4, 8, 16 obpp
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*/
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void
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ddf_gray_convert_line_24(
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cct_dither_table table,
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unsigned char *input,
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unsigned char *output,
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int output_bits_per_pixel,
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int pixel_count);
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/*
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* 1, 2, 4, 8, 16 obpp
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*/
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void
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ddf_dither_line_8(
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cct_dither_table table,
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unsigned char *input,
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unsigned char *output,
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int output_bits_per_pixel,
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int pixel_count);
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/*
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* 4, 8, 16, 24, 32 obpp
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*/
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void
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ddf_convert_line_8(
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cct_dither_table table,
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unsigned char *input,
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unsigned char *output,
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int output_bits_per_pixel,
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int pixel_count);
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/*
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* 16, 24, 32 obpp
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*/
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void
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ddf_convert_line_24(
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cct_dither_table table,
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unsigned char *input,
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unsigned char *output,
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int output_bits_per_pixel,
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int pixel_count);
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#endif /* DISPDITHER_H_INCLUDED */
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