a7d006b637
The new code is based on timestamps, rather than delays. This eliminates the need to update every timer in timer_process(), which cost a non-trivial amount of CPU time on low-end machines. This involved changes to every user of the timer code, so this change almost certainly introduces bugs.
88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
typedef struct sb_dsp_t
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{
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int sb_type;
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int sb_8_length, sb_8_format, sb_8_autoinit, sb_8_pause, sb_8_enable, sb_8_autolen, sb_8_output;
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int sb_8_dmanum;
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int sb_16_length, sb_16_format, sb_16_autoinit, sb_16_pause, sb_16_enable, sb_16_autolen, sb_16_output;
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int sb_16_dmanum;
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int sb_pausetime;
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uint8_t sb_read_data[256];
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int sb_read_wp, sb_read_rp;
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int sb_speaker;
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int muted;
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int sb_data_stat;
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int sb_irqnum;
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uint8_t sbe2;
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int sbe2count;
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uint8_t sb_data[8];
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int sb_freq;
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int16_t sbdat;
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int sbdat2;
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int16_t sbdatl, sbdatr;
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uint8_t sbref;
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int8_t sbstep;
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int sbdacpos;
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int sbleftright;
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int sbreset;
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uint8_t sbreaddat;
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uint8_t sb_command;
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uint8_t sb_test;
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int sb_timei, sb_timeo;
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int sb_irq8, sb_irq16;
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uint8_t sb_asp_regs[256];
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int sbenable, sb_enable_i;
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pc_timer_t output_timer, input_timer;
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uint64_t sblatcho, sblatchi;
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uint16_t sb_addr;
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int stereo;
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int asp_data_len;
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pc_timer_t wb_timer;
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int wb_full;
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int busy_count;
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int record_pos_read;
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int record_pos_write;
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int16_t record_buffer[0xFFFF];
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int16_t buffer[MAXSOUNDBUFLEN * 2];
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int pos;
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} sb_dsp_t;
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void sb_dsp_init(sb_dsp_t *dsp, int type);
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void sb_dsp_close(sb_dsp_t *dsp);
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void sb_dsp_setirq(sb_dsp_t *dsp, int irq);
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void sb_dsp_setdma8(sb_dsp_t *dsp, int dma);
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void sb_dsp_setdma16(sb_dsp_t *dsp, int dma);
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void sb_dsp_setaddr(sb_dsp_t *dsp, uint16_t addr);
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void sb_dsp_speed_changed(sb_dsp_t *dsp);
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void sb_dsp_poll(sb_dsp_t *dsp, int16_t *l, int16_t *r);
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void sb_dsp_set_stereo(sb_dsp_t *dsp, int stereo);
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void sb_dsp_add_status_info(char *s, int max_len, sb_dsp_t *dsp);
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void sb_dsp_update(sb_dsp_t *dsp);
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