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add basic rng init on RandomNoise plugin

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Luna 2019-07-13 17:49:09 -03:00
parent 16116371f5
commit 3edca782ac
2 changed files with 10 additions and 3 deletions
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3
examples/noise.scri Normal file
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@ -0,0 +1,3 @@
load :0;
noise 3 1;
quicksave;

10
src/custom.zig
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@ -5,20 +5,24 @@ const plugins = @import("plugin.zig");
const c = lv2.c; const c = lv2.c;
const RunContext = plugins.RunContext; const RunBuffers = plugins.RunBuffers;
pub const RandomNoise = struct { pub const RandomNoise = struct {
allocator: *std.mem.Allocator, allocator: *std.mem.Allocator,
r: std.rand.DefaultPrng,
pub fn init( pub fn init(
allocator: *std.mem.Allocator, allocator: *std.mem.Allocator,
) RandomNoise { ) RandomNoise {
var r = std.rand.DefaultPrng.init(std.time.timestamp());
return RandomNoise{ return RandomNoise{
.allocator = allocator, .allocator = allocator,
.r = r,
}; };
} }
pub fn run(self: *RandomNoise, rctx: *RunContext) void { pub fn run(self: *RandomNoise, bufs: *RunBuffers) void {
rctx.in_buf[0] = f32(2); bufs.out[0] = self.r.random.float(f32);
} }
}; };