fix cimport not doing deref
This commit is contained in:
parent
58aea2755e
commit
f7a16447f4
1 changed files with 63 additions and 27 deletions
90
src/main.zig
90
src/main.zig
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@ -53,6 +53,30 @@ const Param = struct {
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value: f32,
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};
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pub fn lilv_instance_connect_port(
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instance: [*c]c.LilvInstance,
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port_index: u32,
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data_location: ?*c_void,
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) void {
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instance.?.*.lv2_descriptor.?.*.connect_port.?(instance.?.*.lv2_handle, port_index, data_location);
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}
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pub fn lilv_instance_activate(instance: [*c]c.LilvInstance) void {
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if (instance.?.*.lv2_descriptor.?.*.activate != null) {
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instance.?.*.lv2_descriptor.?.*.activate.?(instance.?.*.lv2_handle);
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}
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}
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pub fn lilv_instance_run(instance: [*c]c.LilvInstance, sample_count: u32) void {
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instance.?.*.lv2_descriptor.?.*.run.?(instance.?.*.lv2_handle, sample_count);
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}
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pub fn lilv_instance_deactivate(instance: [*c]c.LilvInstance) void {
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if (instance.?.*.lv2_descriptor.?.*.deactivate != null) {
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instance.?.*.lv2_descriptor.?.*.deactivate.?(instance.?.*.lv2_handle);
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}
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}
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const ParamList = std.ArrayList(Param);
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const PortType = enum {
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@ -74,14 +98,15 @@ const Port = struct {
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const LV2Apply = struct {
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allocator: *std.mem.Allocator,
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world: *c.LilvWorld = undefined,
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plugin: *const c.LilvPlugin = undefined,
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instance: *c.LilvInstance = undefined,
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in_path: []u8 = undefined,
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out_path: []u8 = undefined,
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world: ?*c.LilvWorld = null,
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plugin: ?*const c.LilvPlugin = null,
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instance: ?*c.LilvInstance = null,
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in_file: *c.SNDFILE = undefined,
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out_file: *c.SNDFILE = undefined,
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in_path: ?[]u8 = undefined,
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out_path: ?[]u8 = undefined,
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in_file: ?*c.SNDFILE = null,
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out_file: ?*c.SNDFILE = null,
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n_params: u32,
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@ -96,8 +121,12 @@ const LV2Apply = struct {
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sclose(self.in_path, self.in_file);
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sclose(self.out_path, self.out_file);
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c.lilv_instance_free(self.instance);
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c.lilv_world_free(self.world);
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if (self.instance) |instance| {
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c.lilv_instance_free(self.instance);
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}
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if (self.world) |world| {
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c.lilv_world_free(self.world);
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}
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self.allocator.free(self.ports);
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self.params.deinit();
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@ -172,7 +201,10 @@ const LV2Apply = struct {
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}
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};
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fn sopen(path: []const u8, mode: i32, fmt: *c.SF_INFO) ?*c.SNDFILE {
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fn sopen(path_opt: ?[]const u8, mode: i32, fmt: *c.SF_INFO) ?*c.SNDFILE {
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if (path_opt == null) return null;
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var path = path_opt.?;
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var file = c.sf_open(path.ptr, mode, fmt);
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const st: i32 = c.sf_error(file);
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@ -184,7 +216,12 @@ fn sopen(path: []const u8, mode: i32, fmt: *c.SF_INFO) ?*c.SNDFILE {
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return file;
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}
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fn sclose(path: []const u8, file: *c.SNDFILE) void {
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fn sclose(path_opt: ?[]const u8, file_opt: ?*c.SNDFILE) void {
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if (path_opt == null) return;
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if (file_opt == null) return;
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var path = path_opt.?;
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var file = file_opt.?;
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var st: i32 = c.sf_close(file);
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if (st != 0) {
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std.debug.warn(
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@ -198,7 +235,9 @@ fn sclose(path: []const u8, file: *c.SNDFILE) void {
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///Read a single frame from a file into an interleaved buffer.
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///If more channels are required than are available in the file, the remaining
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///channels are distributed in a round-robin fashion (LRLRL).
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fn sread(file: *c.SNDFILE, file_chans: c_int, buf: []f32) bool {
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fn sread(file_opt: ?*c.SNDFILE, file_chans: c_int, buf: []f32) bool {
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var file = file_opt.?;
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const n_read: c.sf_count_t = c.sf_readf_float(file, buf.ptr, 1);
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const buf_chans = @intCast(c_int, buf.len);
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@ -221,17 +260,14 @@ fn print_version() !void {
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fn print_usage() !void {
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const stdout_file = try std.io.getStdOut();
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try stdout_file.write("Usage: lv2apply [OPTION]... PLUGIN_URI\n");
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try stdout_file.write(" -i IN_FILE Input file\n");
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try stdout_file.write(" -o OUT_FILE Output file\n");
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try stdout_file.write(" -o OUT_FILE Output file\n");
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try stdout_file.write("-c SYM VAL Control value\n");
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try stdout_file.write("--help print help\n");
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try stdout_file.write("--version display version\n");
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try stdout_file.write("\t-i IN_FILE Input file\n");
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try stdout_file.write("\t-o OUT_FILE Output file\n");
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try stdout_file.write("\t-c SYM VAL Control value\n");
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try stdout_file.write("\t--help print help\n");
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try stdout_file.write("\t--version display version\n");
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}
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pub fn main() !void {
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std.debug.warn("awoo.\n");
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var arena = std.heap.ArenaAllocator.init(std.heap.c_allocator);
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const allocator = &arena.allocator;
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@ -388,17 +424,17 @@ pub fn main() !void {
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var p = @intCast(u32, p_idx);
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if (ptype == .Control) {
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c.lilv_instance_connect_port(self.instance, p, &port.value);
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lilv_instance_connect_port(self.instance, p, &port.value);
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} else if (ptype == .Audio) {
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if (port.is_input) {
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c.lilv_instance_connect_port(self.instance, p, &in_buf[i]);
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lilv_instance_connect_port(self.instance, p, &in_buf[i]);
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i += 1;
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} else {
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c.lilv_instance_connect_port(self.instance, p, &in_buf[o]);
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lilv_instance_connect_port(self.instance, p, &in_buf[o]);
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o += 1;
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}
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} else {
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c.lilv_instance_connect_port(self.instance, p, null);
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lilv_instance_connect_port(self.instance, p, null);
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}
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}
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@ -407,7 +443,7 @@ pub fn main() !void {
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// read/write from/to sndfile.
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std.debug.warn("almost there!\n");
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c.lilv_instance_activate(self.instance);
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lilv_instance_activate(self.instance);
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const START = 2 * 44100;
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// for the first START frames, copy from in to out
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@ -423,13 +459,13 @@ pub fn main() !void {
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std.debug.warn("{} seeked frames\n", seeked);
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while (sread(self.in_file, in_fmt.channels, in_buf)) {
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c.lilv_instance_run(self.instance, 1);
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lilv_instance_run(self.instance, 1);
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if (c.sf_writef_float(self.out_file, out_buf.ptr, 1) != 1) {
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std.debug.warn("failed to write to output file\n");
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return;
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}
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}
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c.lilv_instance_deactivate(self.instance);
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lilv_instance_deactivate(self.instance);
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return;
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}
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