OpenAL- A binding to the OpenAL cross-platform 3D audio API





This module corresponds to section 2.2 (Primitive Types) of the OpenAL Specification and Reference (version 1.1).


Primitive Types

As OpenAL is meant to allow for seamless integration with OpenGL code if needed, the OpenAL library primitive (scalar) data types mimic the OpenGL data types. Guaranteed minimum sizes are stated for OpenGL data types, but the actual choice of C data type is left to the implementation. All implementations on a given binary architecture, however, must use a common definition of these data types.

Floating-Point Computation

Any representable floating-point value is legal as input to an OpenAL command that requires floating point data. The result of providing a value that is not a floating point number to such a command is unspecified, but must not lead to OpenAL being interrupted or terminated. In IEEE arithmetic, for example, providing a negative zero or a denormalized number to an OpenAL command yields predictable results, while providing a NaN or infinity yields unspecified results. Some calculations require division. In such cases (including implied divisions required by vector normalizations), a division by zero produces an unspecified result but must not lead to OpenAL interruption or termination.

type ALboolean = Int8Source

8-bit boolean

type ALchar = Int8Source


type ALbyte = Int8Source

Signed 8-bit 2's complement integer

type ALubyte = Word8Source

Unsigned 8-bit integer

type ALshort = Int16Source

Signed 16-bit 2's complement integer

type ALushort = Word16Source

Unsigned 16-bit integer

type ALint = Int32Source

Signed 32-bit 2's complement integer

type ALuint = Word32Source

Unsigned 32-bit integer

type ALsizei = Int32Source

Non-negatitve 32-bit binary integer size

type ALenum = Int32Source

Enumerated 32-bit value

type ALfloat = FloatSource

32-bit IEEE754 floating-point

type ALdouble = DoubleSource

64-bit IEEE754 floating-point