From 9a6caa2453238ac3983b1541d20a3140deb252a4 Mon Sep 17 00:00:00 2001
From: Luna <git@l4.pm>
Date: Sat, 25 Jan 2020 17:47:20 -0300
Subject: [PATCH] add gate cmd

---
 doc/README.md      |  9 +++++++++
 examples/gate.scri |  5 +++++
 src/lang.zig       |  2 ++
 src/printer.zig    |  1 +
 src/runner.zig     | 16 ++++++++++++++++
 5 files changed, 33 insertions(+)
 create mode 100644 examples/gate.scri

diff --git a/doc/README.md b/doc/README.md
index c342bef..74a1445 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -178,3 +178,12 @@ with a suffix on the filename (before extension).
 
 Doing consecutive `quicksave`s will not overwrite any files, the suffixes will
 just be different.
+
+## `gate split index switch threshold attack hold decay gaterange` 
+
+ - switch (bool): 0..1, default 0
+ - threshold (dB): -70..12, default -70
+ - attack (ms): 0.1..500, default 30
+ - hold (ms): 5..3000, default 500
+ - decay (ms): 5..4000, default 1000
+ - gaterange (dB): -90..-20, default -90
diff --git a/examples/gate.scri b/examples/gate.scri
new file mode 100644
index 0000000..9269932
--- /dev/null
+++ b/examples/gate.scri
@@ -0,0 +1,5 @@
+load :0;
+gate 5 1 0 1 100 500 1000 -50;
+gate 5 2 1 1 100 500 1000 -50;
+gate 5 3 1 1 150 1000 1000 -50;
+quicksave;
diff --git a/src/lang.zig b/src/lang.zig
index a50f738..07e5fb1 100644
--- a/src/lang.zig
+++ b/src/lang.zig
@@ -26,6 +26,7 @@ pub const CommandType = enum {
     Delay,
     Vinyl,
     RevDelay,
+    Gate,
 
     Noise,
     WildNoise,
@@ -184,6 +185,7 @@ pub const Lang = struct {
         _ = try self.keywords.put("delay", .Delay);
         _ = try self.keywords.put("vinyl", .Vinyl);
         _ = try self.keywords.put("revdelay", .RevDelay);
+        _ = try self.keywords.put("gate", .Gate);
 
         // custom implementations (not lv2)
         _ = try self.keywords.put("noise", .Noise);
diff --git a/src/printer.zig b/src/printer.zig
index a543325..faa863a 100644
--- a/src/printer.zig
+++ b/src/printer.zig
@@ -20,6 +20,7 @@ pub fn printList(list: langs.CommandList, stream: var) !void {
             .Delay => "delay",
             .Vinyl => "vinyl",
             .RevDelay => "revdelay",
+            .Gate => "gate",
 
             .Noise => "noise",
             .WildNoise => "wildnoise",
diff --git a/src/runner.zig b/src/runner.zig
index 33cacb2..44c9fb4 100644
--- a/src/runner.zig
+++ b/src/runner.zig
@@ -294,6 +294,11 @@ pub const Runner = struct {
         try magick.runRotate(image, deg, c_bgfill);
     }
 
+    fn gateCmd(self: *Runner, pos: Position, params: ParamList) !void {
+        var image = try self.getImage();
+        try image.runPlugin("http://hippie.lt/lv2/gate", pos, params);
+    }
+
     fn runCommand(self: *Runner, cmd: *lang.Command) !void {
         var params = ParamList.init(self.allocator);
         defer params.deinit();
@@ -477,6 +482,17 @@ pub const Runner = struct {
                 try self.rotateCmd(deg, bgfill);
             },
 
+            .Gate => {
+                const pos = try cmd.consumePosition();
+                try cmd.appendParam(&params, "switch");
+                try cmd.appendParam(&params, "threshold");
+                try cmd.appendParam(&params, "attack");
+                try cmd.appendParam(&params, "hold");
+                try cmd.appendParam(&params, "decay");
+                try cmd.appendParam(&params, "gaterange");
+                try self.gateCmd(pos, params);
+            },
+
             else => blk: {
                 std.debug.warn("Unsupported command: {}\n", .{cmd.command});
                 break :blk RunError.UnknownCommand;