Use comptime for fully declarative LV2 and Custom commands #14
1 changed files with 1 additions and 145 deletions
146
src/lang.zig
146
src/lang.zig
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@ -9,49 +9,6 @@ pub const ParseError = error{
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};
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pub const CommandType = enum {
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Noop,
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Load,
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Quicksave,
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RunQS,
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Amp,
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RFlanger,
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Eq,
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Phaser,
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Mbeq,
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Chorus,
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PitchScaler,
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Reverb,
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Highpass,
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Delay,
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Vinyl,
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RevDelay,
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Gate,
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Detune,
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Overdrive,
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Degrade,
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RePsycho,
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TalkBox,
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DynComp,
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ThruZero,
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Foverdrive,
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Gverb,
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Invert,
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TapeDelay,
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ModDelay,
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MultiChorus,
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Saturator,
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VintageDelay,
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Noise,
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WildNoise,
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Write,
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Embed,
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Rotate,
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};
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pub const NewCommandType = enum {
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/// "LV2 Commands" are commands that receive split, index, and then receive
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/// any f64 arguments.
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lv2_command,
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@ -64,7 +21,7 @@ fn LV2Command(
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) type {
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return struct {
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pub const base_tag = tag;
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pub const command_type = NewCommandType.lv2_command;
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pub const command_type = CommandType.lv2_command;
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pub const lv2_url = plugin_url;
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base: NewCommand,
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@ -226,107 +183,6 @@ pub const NewCommand = struct {
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);
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};
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pub const Command = struct {
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command: CommandType,
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args: ArgList,
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cur_idx: usize = 0,
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pub fn print(self: Command) void {
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std.debug.warn("cmd:{}\n", .{self.command});
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}
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pub fn argAt(self: Command, idx: usize) ![]const u8 {
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std.debug.warn("{} {}", .{ idx, self.args.items.len });
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if (idx > (self.args.items.len - 1)) {
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std.debug.warn("Expected argument at index {}\n", .{idx});
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return ParseError.ArgRequired;
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}
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return self.args.items[idx];
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}
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pub fn usizeArgAt(self: Command, idx: usize) !usize {
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var arg = try self.argAt(idx);
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return try std.fmt.parseInt(usize, arg, 10);
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}
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pub fn consumePosition(self: *Command) !plugin.Position {
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self.cur_idx = 2;
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return plugin.Position{
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.split = try self.usizeArgAt(0),
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.index = try self.usizeArgAt(1),
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};
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}
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pub fn intArgAt(self: Command, idx: usize) !i32 {
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var arg = try self.argAt(idx);
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return try std.fmt.parseInt(i32, arg, 10);
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}
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pub fn floatArgAt(self: Command, idx: usize) !f32 {
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var arg = try self.argAt(idx);
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return try std.fmt.parseFloat(f32, arg);
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}
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pub fn floatArgMany(
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self: Command,
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allocator: *std.mem.Allocator,
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start_index: usize,
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elements: usize,
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default: f32,
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) ![]const f32 {
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var i: usize = start_index;
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var arr = std.ArrayList(f32).init(allocator);
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while (i < elements) : (i += 1) {
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var value: f32 = self.floatArgAt(i) catch |err| blk: {
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std.debug.warn("\tdoing default on arg {}\n", .{i});
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break :blk default;
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};
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try arr.append(value);
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}
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return arr.items;
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}
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pub fn appendParam(
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self: *Command,
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params: *plugin.ParamList,
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symbol: []const u8,
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) !void {
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var val = try self.floatArgAt(self.cur_idx);
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self.cur_idx += 1;
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try params.append(plugin.Param{
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.sym = symbol,
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.value = val,
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});
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}
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pub fn appendParamMap(
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self: *Command,
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map: *plugin.ParamMap,
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symbol: []const u8,
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) !void {
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var val = try self.floatArgAt(self.cur_idx);
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self.cur_idx += 1;
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_ = try map.put(symbol, val);
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}
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pub fn copy(self: Command, allocator: *std.mem.Allocator) !*Command {
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var cmd = try allocator.create(Command);
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cmd.* = Command{
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.command = self.command,
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.args = self.args,
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.cur_idx = self.cur_idx,
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};
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return cmd;
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}
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};
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pub const CommandList = std.ArrayList(*NewCommand);
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pub const ArgList = std.ArrayList([]const u8);
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