diff options
Diffstat (limited to 'libs/ardour/ardour/gdither_types_internal.h')
-rw-r--r-- | libs/ardour/ardour/gdither_types_internal.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/libs/ardour/ardour/gdither_types_internal.h b/libs/ardour/ardour/gdither_types_internal.h new file mode 100644 index 0000000000..55d5792833 --- /dev/null +++ b/libs/ardour/ardour/gdither_types_internal.h @@ -0,0 +1,75 @@ +/* + * Copyright (C) 2002 Steve Harris <steve@plugin.org.uk> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * $Id$ + */ + +#ifndef GDITHER_TYPES_H +#define GDITHER_TYPES_H + +#include <stdint.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#define GDITHER_SH_BUF_SIZE 8 +#define GDITHER_SH_BUF_MASK 7 + +/* this must agree with whats in gdither_types.h */ +typedef enum { + GDitherNone = 0, + GDitherRect, + GDitherTri, + GDitherShaped +} GDitherType; + +typedef enum { + GDither8bit = 8, + GDither16bit = 16, + GDither32bit = 32, + GDitherFloat = 25, + GDitherDouble = 54 +} GDitherSize; + +typedef struct { + uint32_t phase; + float buffer[GDITHER_SH_BUF_SIZE]; +} GDitherShapedState; + +typedef struct GDither_s { + GDitherType type; + uint32_t channels; + uint32_t bit_depth; + uint32_t dither_depth; + float scale; + uint32_t post_scale; + float post_scale_fp; + float bias; + + int clamp_u; + + int clamp_l; + float *tri_state; + GDitherShapedState *shaped_state; +} *GDither; + +#ifdef __cplusplus +} +#endif + +#endif |