Mercurial > repos > blastem
view psg.h @ 1019:e34334e6c682
Fix GST savestate loading to deal with SAT cache to fix sprite corruption on savestate load. Clear out Z80 native_pc so the Z80 state does not get hosed when loading a savestate while the emulator is already running
author | Michael Pavone <pavone@retrodev.com> |
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date | Mon, 02 May 2016 23:08:20 -0700 |
parents | 8d032a368dd5 |
children | 4e5797b3935a |
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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; int32_t lowpass_alpha; uint16_t lsfr; uint16_t counter_load[4]; uint16_t counters[4]; int16_t accum; int16_t last_sample; 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, uint32_t lowpass_cutoff); 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_