Mercurial > repos > blastem
view psg.h @ 505:b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
author | Michael Pavone <pavone@retrodev.com> |
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date | Mon, 06 Jan 2014 22:54:05 -0800 |
parents | 3e1573fa22cf |
children | 9a5dc22297f2 |
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/* Copyright 2013 Michael Pavone This file is part of BlastEm. BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. */ #ifndef PSG_CONTEXT_H_ #define PSG_CONTEXT_H_ #include <stdint.h> typedef struct { int16_t *audio_buffer; int16_t *back_buffer; uint64_t buffer_fraction; uint64_t buffer_inc; uint32_t buffer_pos; uint32_t clock_inc; uint32_t cycles; uint32_t sample_rate; uint32_t samples_frame; uint16_t lsfr; uint16_t counter_load[4]; uint16_t counters[4]; uint8_t volume[4]; uint8_t output_state[4]; uint8_t noise_out; uint8_t noise_use_tone; uint8_t noise_type; uint8_t latch; } psg_context; void psg_init(psg_context * context, uint32_t sample_rate, uint32_t master_clock, uint32_t clock_div, uint32_t samples_frame); void psg_adjust_master_clock(psg_context * context, uint32_t master_clock); void psg_write(psg_context * context, uint8_t value); void psg_run(psg_context * context, uint32_t cycles); #endif //PSG_CONTEXT_H_