117 lines
No EOL
3.1 KiB
Zig
117 lines
No EOL
3.1 KiB
Zig
const std = @import("std");
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const math = std.math;
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const print = std.debug.print;
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const Allocator = std.mem.Allocator;
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const SoundNode = @import("soundnode.zig").SoundNode;
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const FreqAmpBuffer = @import("freqamp.zig").FreqAmpBuffer;
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const utility = @import("utility.zig");
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const basicsynths = @import ("activities/basicsynths.zig");
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const spatial = @import ("activities/spatial.zig");
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const generators = @import ("activities/generators.zig");
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pub const Activity = struct {
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start_tick: u32,
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end_tick: u32,
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opcode: u16,
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soundnode: *SoundNode,
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operands: [6]f64 = std.mem.zeroes([6]f64),
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pub fn create(allocator: Allocator, start_tick: u32, end_tick: u32, opcode: u16, soundnode: *SoundNode, operands: [6]f64) !*Activity {
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const a = try allocator.create(Activity);
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a.* = .{
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.start_tick = start_tick,
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.end_tick = end_tick,
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.opcode = opcode,
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.soundnode = soundnode,
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.operands = operands,
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};
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return a;
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}
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pub fn do(self: *Activity) !void {
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switch (self.opcode) {
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4 => { self.relay(); },
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5 => { self.bridge(); },
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10 => { spatial.setpos(self); },
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50 => { basicsynths.sine(self); },
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51 => { basicsynths.triangle(self); },
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100 => { generators.singenN(self); },
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else => {},
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}
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}
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pub fn relay(self: *Activity) void {
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self.soundnode.add_r_amp(self.soundnode.in_wire);
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self.soundnode.add_r_amp(self.soundnode.in_air);
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}
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pub fn bridge(self: *Activity) void {
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const in_pin: usize = @intFromFloat(self.operands[0]);
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const out_pin: usize = @intFromFloat(self.operands[1]);
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var in_value: f64 = 0;
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switch (in_pin) {
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0 => { in_value = self.soundnode.in_wire; },
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1 => { in_value = self.soundnode.in_air; },
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2 => { in_value = self.soundnode.in_gain; },
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3 => { in_value = self.soundnode.in_basephase; },
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4 => { in_value = self.soundnode.in_phase; },
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5 => { in_value = self.soundnode.in_basefreq; },
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6 => { in_value = self.soundnode.in6; },
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7 => { in_value = self.soundnode.in7; },
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8 => { in_value = self.soundnode.in8; },
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9 => { in_value = self.soundnode.in9; },
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10 => { in_value = self.soundnode.in10; },
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11 => { in_value = self.soundnode.in11; },
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else => {},
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}
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switch (out_pin) {
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0 => { self.soundnode.r_amp = in_value; },
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1 => { self.soundnode.out1 = in_value; },
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2 => { self.soundnode.gain = in_value; },
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3 => { self.soundnode.basephase = in_value; },
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4 => { self.soundnode.phase = in_value; },
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5 => {
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const fcurrent_tick: f64 = @floatFromInt(self.soundnode.fab.current_tick);
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const prevphase = self.soundnode.phase;
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const prevfreq = self.soundnode.basefreq;
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self.soundnode.basefreq = in_value;
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const c = fcurrent_tick / 44100;
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const pp = prevphase + c * (self.soundnode.basefreq - prevfreq) + @floor(c * prevfreq - prevphase);
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self.soundnode.phase = pp - @floor(pp);
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},
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6 => { self.soundnode.out6 = in_value; },
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7 => { self.soundnode.out7 = in_value; },
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8 => { self.soundnode.out8 = in_value; },
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9 => { self.soundnode.out9 = in_value; },
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10 => { self.soundnode.out10 = in_value; },
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11 => { self.soundnode.out11 = in_value; },
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else => {},
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}
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}
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}; |