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comparison mediaplayer.h @ 2482:fb8f49b0aece

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Impelement partial support for DAC stream commands in VGM player
author Michael Pavone <pavone@retrodev.com>
date Sat, 30 Mar 2024 21:10:20 -0700
parents 30e59954eab9
children
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2481:f0645adddf0d 2482:fb8f49b0aece
13 typedef struct chip_info chip_info; 13 typedef struct chip_info chip_info;
14 typedef void (*chip_run_fun)(void *context, uint32_t cycle); 14 typedef void (*chip_run_fun)(void *context, uint32_t cycle);
15 typedef void (*chip_scope_fun)(chip_info *chip, oscilloscope *scope); 15 typedef void (*chip_scope_fun)(chip_info *chip, oscilloscope *scope);
16 typedef void (*chip_noarg_fun)(void *context); 16 typedef void (*chip_noarg_fun)(void *context);
17 typedef void (*chip_adjust_fun)(chip_info *chip); 17 typedef void (*chip_adjust_fun)(chip_info *chip);
18 typedef void (*chip_stream_fun)(chip_info *chip, uint8_t port, uint8_t command, uint16_t sample);
18 struct chip_info { 19 struct chip_info {
19 void *context; 20 void *context;
20 chip_run_fun run; 21 chip_run_fun run;
21 chip_adjust_fun adjust; 22 chip_adjust_fun adjust;
22 chip_scope_fun scope; 23 chip_scope_fun scope;
23 chip_noarg_fun no_scope; 24 chip_noarg_fun no_scope;
24 chip_noarg_fun free; 25 chip_noarg_fun free;
26 chip_stream_fun stream;
25 data_block *blocks; 27 data_block *blocks;
26 uint32_t clock; 28 uint32_t clock;
27 uint32_t samples; 29 uint32_t samples;
28 uint8_t cmd; 30 uint8_t cmd;
29 uint8_t data_type; 31 uint8_t data_type;
32 uint8_t stream_type;
30 }; 33 };
34
35 typedef struct {
36 chip_info *chip;
37 data_block *cur_block;
38 uint32_t step;
39 uint32_t block_offset;
40 uint32_t start_offset;
41 uint32_t cycles_per_sample;
42 uint32_t sample_rate;
43 uint32_t next_sample_cycle;
44 uint32_t remaining; // sample count or command count
45 uint8_t data_type;
46 uint8_t port;
47 uint8_t command;
48 uint8_t flags;
49 uint8_t length_mode;
50 } vgm_stream;
31 51
32 enum { 52 enum {
33 STATE_PLAY, 53 STATE_PLAY,
34 STATE_PAUSED 54 STATE_PAUSED
35 }; 55 };
43 wave_header *wave; 63 wave_header *wave;
44 flac_file *flac; 64 flac_file *flac;
45 audio_source *audio; 65 audio_source *audio;
46 chip_info *chips; 66 chip_info *chips;
47 oscilloscope *scope; 67 oscilloscope *scope;
68 vgm_stream *streams[256];
48 uint32_t num_chips; 69 uint32_t num_chips;
49 uint32_t current_offset; 70 uint32_t current_offset;
50 uint32_t playback_time; 71 uint32_t playback_time;
51 uint32_t wait_samples; 72 uint32_t wait_samples;
52 uint32_t ym_seek_offset; 73 uint32_t ym_seek_offset;