58 lines
1.7 KiB
Rust
58 lines
1.7 KiB
Rust
use lazy_static::lazy_static;
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lazy_static! {
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static ref WAVEFORMS: [[i8; 0x100]; 6] = {
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let mut seed = 0;
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let mut sine = [0i8; 0x100];
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let mut triangle = [0i8; 0x100];
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let mut saw_up = [0i8; 0x100];
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let mut saw_down = [0i8; 0x100];
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let mut square = [0i8; 0x100];
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let mut random = [0i8; 0x100];
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for i in 0..255 {
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seed = (seed * 214013) + 2531011;
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sine[i] = (64.0 * (i as f32 * std::f32::consts::PI).sin()) as i8;
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triangle[i] = (if (0x40 + i as isize) & 0x80 != 0 { 0x80 - i as isize } else { i as isize }) as i8;
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saw_up[i] = (-0x40 + i as isize / 2) as i8;
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saw_down[i] = (0x40 - i as isize / 2) as i8;
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square[i] = (0x40 - (i as isize & 0x80)) as i8;
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random[i] = ((seed >> 16) / 2) as i8;
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}
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[sine, triangle, saw_up, saw_down, square, random]
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};
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}
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pub struct PixToneData {
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}
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pub struct PixTone {}
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impl PixTone {
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}
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fn dupa() -> [[i8; 0x100]; 6] {
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let mut seed = 0;
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let mut sine = [0i8; 0x100];
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let mut triangle = [0i8; 0x100];
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let mut saw_up = [0i8; 0x100];
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let mut saw_down = [0i8; 0x100];
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let mut square = [0i8; 0x100];
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let mut random = [0i8; 0x100];
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for i in 0..255 {
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seed = (seed * 214013) + 2531011;
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sine[i] = (64.0 * (i as f32 * std::f32::consts::PI).sin()) as i8;
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triangle[i] = (if (0x40 + i as isize) & 0x80 != 0 { 0x80 - i as isize } else { i as isize }) as i8;
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saw_up[i] = (-0x40 + i as isize / 2) as i8;
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saw_down[i] = (0x40 - i as isize / 2) as i8;
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square[i] = (0x40 - (i as isize & 0x80)) as i8;
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random[i] = ((seed >> 16) / 2) as i8;
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}
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[sine, triangle, saw_up, saw_down, square, random]
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}
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