Mercurial > repos > blastem
view psg.h @ 504:7b0df1aaf384
Add support for left and right shift keys
author | Mike Pavone <pavone@retrodev.com> |
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date | Thu, 31 Oct 2013 01:00:32 -0700 |
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_