diff options
Diffstat (limited to 'src/al.zig')
| -rw-r--r-- | src/al.zig | 182 |
1 files changed, 149 insertions, 33 deletions
diff --git a/src/al.zig b/src/al.zig index bfb93b6..7b2e6db 100644 --- a/src/al.zig +++ b/src/al.zig @@ -33,12 +33,16 @@ pub const Error = error { OutOfMemory, }; +pub const BUFFER = AL_BUFFER; pub const POSITION = AL_POSITION; pub const ORIENTATION = AL_ORIENTATION; +pub const PLAYING = AL_PLAYING; +pub const SEC_OFFSET = AL_SEC_OFFSET; +pub const SOURCE_STATE = AL_SOURCE_STATE; pub const listener = struct { /// Set a property for the listener. - pub fn set(param: ALenum, value: anytype) !void { + pub fn set(param: ALenum, value: anytype) Error!void { const T = @TypeOf(value); switch (T) { f32 => alListenerf(param, value), @@ -60,42 +64,154 @@ pub const listener = struct { } }; -/// Generate one buffer for audio data and return its reference. -pub fn genBuffer() !u32 { - var reference: u32 = undefined; - alGenBuffers(1, &reference); - return switch (alGetError()) { - AL_NO_ERROR => reference, - AL_INVALID_VALUE => Error.InvalidValue, - AL_OUT_OF_MEMORY => Error.OutOfMemory, - else => unreachable, - }; -} - -// TODO: genBuffers - -/// Free resources used by one buffer. -/// Buffers attached to a source cannot be deleted. -pub fn deleteBuffer(reference: *const u32) !void { - alDeleteBuffers(1, reference); - switch (alGetError()) { - AL_NO_ERROR => {}, - AL_INVALID_OPERATION => return Error.InvalidOperation, - AL_INVALID_NAME => return Error.InvalidName, - AL_INVALID_VALUE => return Error.InvalidValue, - else => unreachable, +pub const Data = union(enum) { + /// Unsigned 8-bit mono. + mono8: []const u8, + /// Signed 16-bit mono. + mono16: []const i16, + /// Unsigned 8-bit stereo. + stereo8: []const u8, + /// Signed 16-bit stereo. + stereo16: []const i16, +}; + +pub const buffer = struct { + /// Generate one buffer for audio data and return its reference. + pub fn create() Error!u32 { + var reference: u32 = undefined; + alGenBuffers(1, &reference); + return switch (alGetError()) { + AL_NO_ERROR => reference, + AL_INVALID_VALUE => Error.InvalidValue, + AL_OUT_OF_MEMORY => Error.OutOfMemory, + else => unreachable, + }; + } + + /// Free resources used by one buffer. + /// Buffers attached to a source cannot be deleted. + pub fn destroy(reference: *const u32) Error!void { + alDeleteBuffers(1, reference); + switch (alGetError()) { + AL_NO_ERROR => {}, + AL_INVALID_OPERATION => return Error.InvalidOperation, + AL_INVALID_NAME => return Error.InvalidName, + AL_INVALID_VALUE => return Error.InvalidValue, + else => unreachable, + } + } + + /// Fill a buffer with audio data. + pub fn fill(reference: u32, data: Data, freq: i32) Error!void { + const format = switch (data) { + .mono8 => AL_FORMAT_MONO8, + .mono16 => AL_FORMAT_MONO16, + .stereo8 => AL_FORMAT_STEREO8, + .stereo16 => AL_FORMAT_STEREO16, + }; + + switch (data) { + .mono8, .stereo8 => |slice| { + const size = @intCast(c_int, slice.len); + alBufferData(reference, format, slice.ptr, size, freq); + }, + .mono16, .stereo16 => |slice| { + const size = @intCast(c_int, slice.len) * 2; + alBufferData(reference, format, slice.ptr, size, freq); + }, + } + + switch (alGetError()) { + AL_NO_ERROR => {}, + AL_OUT_OF_MEMORY => return Error.OutOfMemory, + AL_INVALID_VALUE => return Error.InvalidValue, + AL_INVALID_ENUM => return Error.InvalidEnum, + else => unreachable, + } + } +}; + +pub const source = struct { + /// Generate one source for audio data and return its reference. + pub fn create() Error!u32 { + var reference: u32 = undefined; + alGenSources(1, &reference); + return switch (alGetError()) { + AL_NO_ERROR => reference, + AL_INVALID_VALUE => Error.InvalidValue, + AL_OUT_OF_MEMORY => Error.OutOfMemory, + else => unreachable, + }; + } + + /// Free resources used by one source. + /// Sources attached to a source cannot be deleted. + pub fn destroy(reference: *const u32) Error!void { + alDeleteSources(1, reference); + switch (alGetError()) { + AL_NO_ERROR => {}, + AL_INVALID_OPERATION => return Error.InvalidOperation, + AL_INVALID_NAME => return Error.InvalidName, + AL_INVALID_VALUE => return Error.InvalidValue, + else => unreachable, + } } -} -// TODO: deleteBuffers + /// Set a property for the source. + pub fn set(reference: u32, param: ALenum, value: anytype) Error!void { + const T = @TypeOf(value); + switch (T) { + f32 => alSourcef(reference, param, value), + i32 => alSourcei(reference, param, value), + else => switch (Child(T)) { + f32 => alSourcefv(reference, param, value[0..]), + i32 => alSourceiv(reference, param, value[0..]), + else => unreachable, + } + } + + switch (alGetError()) { + AL_NO_ERROR => {}, + AL_INVALID_VALUE => return Error.InvalidValue, + AL_INVALID_ENUM => return Error.InvalidEnum, + AL_INVALID_NAME => return Error.InvalidName, + AL_INVALID_OPERATION => return Error.InvalidOperation, + else => unreachable, + } + } + + /// Get a scalar property from the source. + pub fn get(comptime T: type, reference: u32, param: ALenum) Error!T { + var value: T = undefined; + switch (T) { + f32 => alGetSourcef(reference, param, &value), + i32 => alGetSourcei(reference, param, &value), + else => unreachable, + } + + return switch (alGetError()) { + AL_NO_ERROR => value, + AL_INVALID_VALUE => return Error.InvalidValue, + AL_INVALID_ENUM => return Error.InvalidEnum, + AL_INVALID_NAME => return Error.InvalidName, + AL_INVALID_OPERATION => return Error.InvalidOperation, + else => unreachable, + }; + } + + /// Play the source. + pub fn play(reference: u32) Error!void { + alSourcePlay(reference); + switch (alGetError()) { + AL_NO_ERROR => {}, + AL_INVALID_NAME => return Error.InvalidName, + AL_INVALID_OPERATION => return Error.InvalidOperation, + else => unreachable, + } + } +}; -// alBufferData -// alDeleteSources -// alGenSources // alGetSourcei -// alSourcef -// alSourcefv -// alSourcei // alSourcePause // alSourcePlay // alSourceStop |