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update
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lost committed May 21, 2024
1 parent 0e78d4b commit d3ec394
Showing 1 changed file with 66 additions and 21 deletions.
87 changes: 66 additions & 21 deletions src/main.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,7 @@ pub fn main() !void {
'k' => setPan(sound, &ins_tks),
'v' => setVolume(sound, &ins_tks),
'd' => printDeviceInfoList(allocator),
'r' => getDeviceInfo(allocator),
else => continue,
}
} else {
Expand All @@ -83,6 +84,44 @@ pub fn main() !void {
}
}

fn getDeviceInfo(allocator: Allocator) void {
var context = Context.init(allocator) catch return;
defer context.deinit();

var device_info_list = context.getDeviceInfoList() catch return;
defer device_info_list.deinit();

var xoshiro256 = std.Random.Xoshiro256.init(2);
var rand = xoshiro256.random();

const device_type: DeviceType = @enumFromInt(rand.intRangeAtMost(u8, 1, 2));
log.info("DEVICE_TYPE: {any}", .{device_type});

const _dev = switch (device_type) {
.playback => blk: {
const index = rand.uintAtMost(usize, device_info_list.playbacks.items.len - 1);
break :blk device_info_list.playbacks.items[index];
},
.capture => blk: {
const index = rand.uintAtMost(usize, device_info_list.captures.items.len - 1);
break :blk device_info_list.captures.items[index];
},
else => return,
};

var dev = context.getDeviceInfo(device_type, _dev.id) catch return;
defer dev.deinit();

log.info(
\\
\\ PLAYBACK
\\ id : {any}
\\ name : {s}
\\ is_default : {any}
\\ native_data_formats : {any}
, .{ dev.id, dev.name, dev.is_default, dev.native_data_formats });
}

fn printDeviceInfoList(allocator: Allocator) void {
var context = Context.init(allocator) catch return;
defer context.deinit();
Expand All @@ -91,8 +130,6 @@ fn printDeviceInfoList(allocator: Allocator) void {
defer device_info_list.deinit();

for (device_info_list.playbacks.items) |dev| {
// const id_str = try dev.idStr(allocator);
// defer allocator.free(id_str);
const id_str = "";

log.info(
Expand All @@ -107,8 +144,6 @@ fn printDeviceInfoList(allocator: Allocator) void {
}

for (device_info_list.captures.items) |dev| {
// const id_str = try dev.idStr(allocator);
// defer allocator.free(id_str);
const id_str = "";

log.info(
Expand Down Expand Up @@ -827,6 +862,13 @@ pub const DeviceDataFormat = struct {
flags: u32,
};

pub const DeviceType = enum(u8) {
playback = 1,
capture = 2,
duplex = 3,
loopback = 4,
};

pub const DeviceInfo = struct {
arena: *ArenaAllocator,
id: ma.ma_device_id,
Expand All @@ -835,9 +877,12 @@ pub const DeviceInfo = struct {
native_data_formats: []DeviceDataFormat,

pub fn init(allocator: Allocator, dev: ma.ma_device_info) !DeviceInfo {
var arena = try allocator.create(ArenaAllocator);
errdefer allocator.destroy(arena);
arena.* = ArenaAllocator.init(allocator);
var arena = blk: {
const result = try allocator.create(ArenaAllocator);
errdefer allocator.destroy(result);
result.* = ArenaAllocator.init(allocator);
break :blk result;
};
errdefer arena.deinit();

const arena_allocator = arena.allocator();
Expand Down Expand Up @@ -927,10 +972,10 @@ pub const DeviceInfoList = struct {
arena: *ArenaAllocator,

/// playback device info list
playbacks: ArrayList(*DeviceInfo),
playbacks: ArrayList(DeviceInfo),

/// capture device info list
captures: ArrayList(*DeviceInfo),
captures: ArrayList(DeviceInfo),

pub fn init(allocator: Allocator, playbacks_cap: u32, captures_cap: u32) !DeviceInfoList {
var result = DeviceInfoList{
Expand All @@ -943,8 +988,8 @@ pub const DeviceInfoList = struct {
result.arena.* = ArenaAllocator.init(allocator);
errdefer result.arena.deinit();

result.playbacks = try ArrayList(*DeviceInfo).initCapacity(result.arena.allocator(), playbacks_cap);
result.captures = try ArrayList(*DeviceInfo).initCapacity(result.arena.allocator(), captures_cap);
result.playbacks = try ArrayList(DeviceInfo).initCapacity(result.arena.allocator(), playbacks_cap);
result.captures = try ArrayList(DeviceInfo).initCapacity(result.arena.allocator(), captures_cap);

return result;
}
Expand All @@ -959,13 +1004,13 @@ pub const DeviceInfoList = struct {
fn appendPlaybackDevice(self: *DeviceInfoList, dev: ma.ma_device_info) !void {
var device_info = try DeviceInfo.init(self.arena.allocator(), dev);
errdefer device_info.deinit();
try self.playbacks.append(&device_info);
try self.playbacks.append(device_info);
}

fn appendCaptureDevice(self: *DeviceInfoList, dev: ma.ma_device_info) !void {
var device_info = try DeviceInfo.init(self.arena.allocator(), dev);
errdefer device_info.deinit();
try self.captures.append(&device_info);
try self.captures.append(device_info);
}
};

Expand Down Expand Up @@ -1063,20 +1108,20 @@ pub const Context = struct {
return result;
}

pub const DeviceType = enum(u8) {
playback = 1,
capture = 2,
duplex = 3,
loopback = 4,
};

/// get device info by given device_type and device_id
///
/// ```
/// var device_info = try context.getDeviceInfo(.playback, "device id");
/// defer device_info.deinit();
/// ```
///
pub fn getDeviceInfo(self: Context, device_type: DeviceType, device_id: ma.ma_device_id) !DeviceInfo {
return try getDeviceInfoAlloc(self, self.allocator, device_type, device_id);
}

pub fn getDeviceInfoAlloc(self: Context, allocator: Allocator, device_type: DeviceType, device_id: ma.ma_device_id) !DeviceInfo {
var dev: ma.ma_device_info = undefined;
if (ma.ma_context_get_device_info(self.ma_context, device_type, &device_id, &dev) != ma.MA_SUCCESSa) {
if (ma.ma_context_get_device_info(self.ma_context, @intFromEnum(device_type), &device_id, &dev) != ma.MA_SUCCESS) {
return error.MAContextGetDeviceInfo;
}
return try DeviceInfo.init(allocator, dev);
Expand Down

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