Mercurial > repos > blastem
view psg.h @ 915:9e882eca717e
Initial support for relative mouse mode and skeleton of support for capture mode. Avoid mouse position overflow in absolute mode. Allow absolute mode to be set by ROM DB.
author | Michael Pavone <pavone@retrodev.com> |
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date | Tue, 15 Dec 2015 20:01:50 -0800 |
parents | 252dfd29831d |
children | bd549b25c362 |
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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]; int16_t accum; int16_t sample_count; 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_free(psg_context *context); 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_