76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
/*
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* Copyright (C) 2002 Steve Harris <steve@plugin.org.uk>
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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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#ifndef GDITHER_TYPES_H
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#define GDITHER_TYPES_H
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define GDITHER_SH_BUF_SIZE 8
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#define GDITHER_SH_BUF_MASK 7
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/* this must agree with whats in gdither_types.h */
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typedef enum {
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GDitherNone = 0,
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GDitherRect,
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GDitherTri,
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GDitherShaped
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} GDitherType;
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typedef enum {
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GDither8bit = 8,
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GDither16bit = 16,
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GDither32bit = 32,
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GDitherFloat = 25,
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GDitherDouble = 54,
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GDitherPerformanceTest = 23
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} GDitherSize;
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typedef struct {
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uint32_t phase;
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float buffer[GDITHER_SH_BUF_SIZE];
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} GDitherShapedState;
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typedef struct GDither_s {
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GDitherType type;
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uint32_t channels;
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uint32_t bit_depth;
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uint32_t dither_depth;
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float scale;
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uint32_t post_scale;
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float post_scale_fp;
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float bias;
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int clamp_u;
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int clamp_l;
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float *tri_state;
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GDitherShapedState *shaped_state;
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} *GDither;
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#ifdef __cplusplus
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}
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#endif
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#endif
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