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88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
/*
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TiMidity++ -- MIDI to WAVE converter and player
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Copyright (C) 1999-2002 Masanao Izumo <mo@goice.co.jp>
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Copyright (C) 1995 Tuukka Toivonen <tt@cgs.fi>
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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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resample.h
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*/
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#ifndef ___RESAMPLE_H_
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#define ___RESAMPLE_H_
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#include <stdint.h>
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#include "sysdep.h"
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namespace TimidityPlus
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{
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typedef int32_t resample_t;
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enum {
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RESAMPLE_CSPLINE,
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RESAMPLE_LAGRANGE,
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RESAMPLE_GAUSS,
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RESAMPLE_NEWTON,
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RESAMPLE_LINEAR,
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RESAMPLE_NONE
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};
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extern void initialize_resampler_coeffs(void);
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extern void free_gauss_table(void);
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typedef struct resample_rec {
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splen_t loop_start;
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splen_t loop_end;
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splen_t data_length;
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} resample_rec_t;
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extern resample_t do_resamplation(sample_t *src, splen_t ofs, resample_rec_t *rec);
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extern void pre_resample(Sample *sp);
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class Player;
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class Resampler // This is only here to put the buffer on the stack without changing all the code.
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{
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Player *player;
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resample_t resample_buffer[AUDIO_BUFFER_SIZE] = { 0 };
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int resample_buffer_offset = 0;
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resample_t *rs_plain_c(int v, int32_t *countptr);
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resample_t *rs_plain(int v, int32_t *countptr);
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resample_t *rs_loop_c(Voice *vp, int32_t count);
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resample_t *rs_loop(Voice *vp, int32_t count);
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resample_t *rs_bidir(Voice *vp, int32_t count);
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resample_t *rs_vib_plain(int v, int32_t *countptr);
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resample_t *rs_vib_loop(Voice *vp, int32_t count);
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resample_t *rs_vib_bidir(Voice *vp, int32_t count);
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resample_t *porta_resample_voice(int v, int32_t *countptr, int mode);
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resample_t *normal_resample_voice(int v, int32_t *countptr, int mode);
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resample_t *vib_resample_voice(int v, int32_t *countptr, int mode);
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int rs_update_porta(int v);
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int32_t update_vibrato(Voice *vp, int sign);
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public:
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Resampler(Player *p)
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{
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player = p;
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}
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resample_t * resample_voice(int v, int32_t *countptr);
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};
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}
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#endif /* ___RESAMPLE_H_ */
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