1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/*
Copyright (c) 2023 Bad Diode
Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE.
*/
// TODO: A list of features I would like to get to implement in the near future.
//
// UI tweaks.
// - Notification support for feedback when doing some operations
// (copying/pasting)
// - Animations for cursor movement/current step highlight. (A fade out maybe?)
// - Theming support, with a number of pre-configured themes and custom colors.
// - Add panning support. We could send ch1-3 to the left and ch4 to the right
// to act as metronome and achieve analog sync.
//
// Quality of life improvements.
// - Pattern chaining for more than 1 queue and/or song mode.
// - Undo/Redo.
// - Add a settings page to change some configuration parameters.
// - Select + up/down to queue the next pattern as we move to it?
// - Change the cursor, the line is difficult to see.
// - When not on play mode, adjusting a note or a parameter triggers the sound.
// This could get annoying, so maybe it should be a configuration option to
// enable it?
//
// Advanced
// - Sync via MIDI via arduinoboy or something similar.
// - Sync via CV by using the link cable.
// - Add an FM channel using Direct Sound.
// - Per trig note probability.
// - Add an envelope to ch3, would need to work with a timer in order to make
// it work I think.
// - Allow "marking" several trigs to be able to copy/paste them and/or adjust
// their parameters.
//
// Bugfixes
// - Sound can get hung up sometimes, but I can't reproduce when this happens.
// Not sure if this is an emulator thing or happens also in hardware.
// - Cursor can stay in position instead of dissapering, again I can't
// reproduce this right now, just happened randomly. Needs investigation.
//
#include "gba/gba.h"
#include "filesystem.c"
#include "renderer_m0.c"
#include "sequencer.c"
#define PROF_ENABLE 0
#include "profiling.c"
void
render(void) {
PROF(draw_rect(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1, 1), clear_cycles);
if (redraw_trigs) {
PROF(draw_triggers(), draw_trigs_cycles);
redraw_trigs = false;
}
if (redraw_channels) {
PROF(draw_channels(), draw_btn_cycles);
redraw_channels = false;
}
if (redraw_pattern_buttons) {
PROF(draw_pattern_buttons(), draw_btn_cycles);
redraw_pattern_buttons = false;
}
if (redraw_bank_buttons) {
PROF(draw_bank_buttons(), draw_btn_cycles);
redraw_bank_buttons = false;
}
if (redraw_bpm) {
PROF(draw_bpm(), draw_btn_cycles);
redraw_bpm = false;
}
if (redraw_play_pause) {
PROF(draw_play(), draw_btn_cycles);
PROF(draw_stop(), draw_btn_cycles);
redraw_play_pause = false;
}
if (redraw_piano_note) {
PROF(draw_piano_notes(), draw_piano_cycles);
redraw_piano_note = false;
}
if (redraw_params) {
PROF(draw_parameters(), draw_param_cycles);
redraw_params = false;
}
PROF(draw_cursors(), draw_cursor_cycles);
}
void
update(void) {
last_trig_loc = trig_selection_loc;
last_channel_loc = channel_selection_loc;
last_pattern_loc = pattern_selection_loc;
last_right_col_loc = right_col_selection_loc;
if (update_bpm) {
set_time(patterns[current_pattern].bpm);
update_bpm = false;
}
}
int
main(void) {
// Adjust system wait times.
SYSTEM_WAIT = SYSTEM_WAIT_CARTRIDGE;
// Initialize filesystem.
fs_init();
// Initialize renderer.
renderer_init();
// Register interrupts.
irq_init();
irs_set(IRQ_VBLANK, irs_stub);
// Initialize sequencer.
sequencer_init();
txt_spacing(6);
// Main loop.
while (true) {
poll_keys();
bios_vblank_wait();
PROF_SHOW();
FRAME_START();
PROF(flip_buffer(), flip_cycles);
PROF(update(), update_cycles);
PROF(handle_sequencer_input(), input_cycles);
PROF(render(), render_cycles);
FRAME_END();
}
return 0;
}
|
