diff options
Diffstat (limited to 'OpenAL32/Include/alMain.h')
| -rw-r--r-- | OpenAL32/Include/alMain.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/OpenAL32/Include/alMain.h b/OpenAL32/Include/alMain.h index 132e6c21..8eafa6a4 100644 --- a/OpenAL32/Include/alMain.h +++ b/OpenAL32/Include/alMain.h @@ -550,11 +550,19 @@ enum RenderMode { #define MAX_AMBI_ORDER 3 #define MAX_AMBI_COEFFS ((MAX_AMBI_ORDER+1) * (MAX_AMBI_ORDER+1)) +/* A bitmask of ambisonic channels for 0 to 4th order. This only specifies up + * to 4th order, which is the highest order a 32-bit mask value can specify (a + * 64-bit mask could handle up to 7th order). + */ +#define AMBI_0ORDER_MASK 0x00000001 +#define AMBI_1ORDER_MASK 0x0000000f +#define AMBI_2ORDER_MASK 0x000001ff +#define AMBI_3ORDER_MASK 0x0000ffff +#define AMBI_4ORDER_MASK 0x01ffffff + /* A bitmask of ambisonic channels with height information. If none of these * channels are used/needed, there's no height (e.g. with most surround sound - * speaker setups). This only specifies up to 4th order, which is the highest - * order a 32-bit mask value can specify (a 64-bit mask could handle up to 7th - * order). This is ACN ordering, with bit 0 being ACN 0, etc. + * speaker setups). This is ACN ordering, with bit 0 being ACN 0, etc. */ #define AMBI_PERIPHONIC_MASK (0xfe7ce4) |