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package sdl2
import "core:c"
when ODIN_OS == .Windows {
@(ignore_duplicates)
foreign import lib "SDL2.lib"
} else {
@(ignore_duplicates)
foreign import lib "system:SDL2"
}
/**
* \brief Audio format flags.
*
* These are what the 16 bits in SDL_AudioFormat currently mean...
* (Unspecified bits are always zero).
*
* \verbatim
++-----------------------sample is signed if set
||
|| ++-----------sample is bigendian if set
|| ||
|| || ++---sample is float if set
|| || ||
|| || || +---sample bit size---+
|| || || | |
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
\endverbatim
*
* There are macros in SDL 2.0 and later to query these bits.
*/
AudioFormat :: distinct u16
AUDIO_MASK_BITSIZE :: 0xFF
AUDIO_MASK_DATATYPE :: 1<<8
AUDIO_MASK_ENDIAN :: 1<<12
AUDIO_MASK_SIGNED :: 1<<15
AUDIO_BITSIZE :: #force_inline proc "c" (x: AudioFormat) -> u8 { return u8(x & AUDIO_MASK_BITSIZE) }
AUDIO_ISFLOAT :: #force_inline proc "c" (x: AudioFormat) -> bool { return (x & AUDIO_MASK_DATATYPE) == AUDIO_MASK_DATATYPE }
AUDIO_ISBIGENDIAN :: #force_inline proc "c" (x: AudioFormat) -> bool { return (x & AUDIO_MASK_ENDIAN) == AUDIO_MASK_ENDIAN }
AUDIO_ISSIGNED :: #force_inline proc "c" (x: AudioFormat) -> bool { return (x & AUDIO_MASK_SIGNED) == AUDIO_MASK_SIGNED }
AUDIO_ISINT :: #force_inline proc "c" (x: AudioFormat) -> bool { return !AUDIO_ISFLOAT(x) }
AUDIO_ISLITTLEENDIAN :: #force_inline proc "c" (x: AudioFormat) -> bool { return !AUDIO_ISBIGENDIAN(x) }
AUDIO_ISUNSIGNED :: #force_inline proc "c" (x: AudioFormat) -> bool { return !AUDIO_ISSIGNED(x) }
AUDIO_U8 :: 0x0008 /**< Unsigned 8-bit samples */
AUDIO_S8 :: 0x8008 /**< Signed 8-bit samples */
AUDIO_U16LSB :: 0x0010 /**< Unsigned 16-bit samples */
AUDIO_S16LSB :: 0x8010 /**< Signed 16-bit samples */
AUDIO_U16MSB :: 0x1010 /**< As above, but big-endian byte order */
AUDIO_S16MSB :: 0x9010 /**< As above, but big-endian byte order */
AUDIO_U16 :: AUDIO_U16LSB
AUDIO_S16 :: AUDIO_S16LSB
AUDIO_S32LSB :: 0x8020 /**< 32-bit integer samples */
AUDIO_S32MSB :: 0x9020 /**< As above, but big-endian byte order */
AUDIO_S32 :: AUDIO_S32LSB
AUDIO_F32LSB :: 0x8120 /**< 32-bit floating point samples */
AUDIO_F32MSB :: 0x9120 /**< As above, but big-endian byte order */
AUDIO_F32 :: AUDIO_F32LSB
when ODIN_ENDIAN == .Little {
AUDIO_U16SYS :: AUDIO_U16LSB
AUDIO_S16SYS :: AUDIO_S16LSB
AUDIO_S32SYS :: AUDIO_S32LSB
AUDIO_F32SYS :: AUDIO_F32LSB
} else {
AUDIO_U16SYS :: AUDIO_U16MSB
AUDIO_S16SYS :: AUDIO_S16MSB
AUDIO_S32SYS :: AUDIO_S32MSB
AUDIO_F32SYS :: AUDIO_F32MSB
}
AudioAllowChangeFlags :: distinct bit_set[AudioAllowChangeFlag; c.int]
AudioAllowChangeFlag :: enum c.int {
FREQUENCY = 0,
FORMAT = 1,
CHANNELS = 2,
SAMPLES = 3,
}
AUDIO_ALLOW_ANY_CHANGE :: AudioAllowChangeFlags{.FREQUENCY, .FORMAT, .CHANNELS, .SAMPLES}
AudioCallback :: proc "c" (userdata: rawptr, stream: [^]u8, len: c.int)
/**
* The calculated values in this structure are calculated by SDL_OpenAudio().
*
* For multi-channel audio, the default SDL channel mapping is:
* 2: FL FR (stereo)
* 3: FL FR LFE (2.1 surround)
* 4: FL FR BL BR (quad)
* 5: FL FR FC BL BR (quad + center)
* 6: FL FR FC LFE SL SR (5.1 surround - last two can also be BL BR)
* 7: FL FR FC LFE BC SL SR (6.1 surround)
* 8: FL FR FC LFE BL BR SL SR (7.1 surround)
*/
AudioSpec :: struct {
freq: c.int, /**< DSP frequency -- samples per second */
format: AudioFormat, /**< Audio data format */
channels: u8, /**< Number of channels: 1 mono, 2 stereo */
silence: u8, /**< Audio buffer silence value (calculated) */
samples: u16, /**< Audio buffer size in sample FRAMES (total samples divided by channel count) */
padding: u16, /**< Necessary for some compile environments */
size: u32, /**< Audio buffer size in bytes (calculated) */
callback: AudioCallback, /**< Callback that feeds the audio device (NULL to use SDL_QueueAudio()). */
userdata: rawptr, /**< Userdata passed to callback (ignored for NULL callbacks). */
}
AudioFilter :: proc "c" (cvt: ^AudioCVT, format: AudioFormat)
AUDIOCVT_MAX_FILTERS :: 9
AudioCVT :: struct #packed {
needed: c.int, /**< Set to 1 if conversion possible */
src_format: AudioFormat, /**< Source audio format */
dst_format: AudioFormat, /**< Target audio format */
rate_incr: f64, /**< Rate conversion increment */
buf: [^]u8, /**< Buffer to hold entire audio data */
len: c.int, /**< Length of original audio buffer */
len_cvt: c.int, /**< Length of converted audio buffer */
len_mult: c.int, /**< buffer must be len*len_mult big */
len_ratio: f64, /**< Given len, final size is len*len_ratio */
filters: [AUDIOCVT_MAX_FILTERS + 1]AudioFilter, /**< NULL-terminated list of filter functions */
filter_index: c.int, /**< Current audio conversion function */
}
AudioDeviceID :: distinct u32
@(default_calling_convention="c", link_prefix="SDL_")
foreign lib {
GetNumAudioDrivers :: proc() -> c.int ---
GetAudioDriver :: proc(index: c.int) -> cstring ---
AudioInit :: proc(driver_name: cstring) -> c.int ---
AudioQuit :: proc() ---
GetCurrentAudioDriver :: proc() -> cstring ---
OpenAudio :: proc(desired, obtained: ^AudioSpec) -> c.int ---
GetNumAudioDevices :: proc(iscapture: bool) -> c.int ---
GetAudioDeviceName :: proc(index: c.int, iscapture: bool) -> cstring ---
GetAudioDeviceSpec :: proc(index: c.int, iscapture: bool, spec: ^AudioSpec) -> c.int ---
OpenAudioDevice :: proc(device: cstring,
iscapture: bool,
desired: ^AudioSpec,
obtained: ^AudioSpec,
allowed_changes: AudioAllowChangeFlags) -> AudioDeviceID ---
}
AudioStatus :: enum c.int {
STOPPED = 0,
PLAYING,
PAUSED,
}
@(default_calling_convention="c", link_prefix="SDL_")
foreign lib {
GetAudioStatus :: proc() -> AudioStatus ---
GetAudioDeviceStatus :: proc(dev: AudioDeviceID) -> AudioStatus --- /* Audio State */
}
/* this is opaque to the outside world. */
AudioStream :: struct {}
@(default_calling_convention="c", link_prefix="SDL_")
foreign lib {
PauseAudio :: proc(pause_on: bool) ---
PauseAudioDevice :: proc(dev: AudioDeviceID, pause_on: bool) --- /* Pause audio functions */
}
/**
* Loads a WAV from a file.
* Compatibility convenience function.
*/
LoadWAV :: #force_inline proc "c" (file: cstring, spec: ^AudioSpec, audio_buf: ^[^]u8, audio_len: ^u32) -> ^AudioSpec {
return LoadWAV_RW(RWFromFile(file, "rb"), true, spec, audio_buf, audio_len)
}
@(default_calling_convention="c", link_prefix="SDL_")
foreign lib {
LoadWAV_RW :: proc(src: ^RWops, freesrc: bool, spec: ^AudioSpec, audio_buf: ^[^]u8, audio_len: ^u32) -> ^AudioSpec ---
FreeWAV :: proc(audio_buf: [^]u8) ---
}
@(default_calling_convention="c", link_prefix="SDL_")
foreign lib {
BuildAudioCVT :: proc(cvt: ^AudioCVT,
src_format: AudioFormat,
src_channels: u8,
src_rate: c.int,
dst_format: AudioFormat,
dst_channels: u8,
dst_rate: c.int) -> c.int ---
ConvertAudio :: proc(cvt: ^AudioCVT) -> c.int ---
NewAudioStream :: proc(src_format: AudioFormat,
src_channels: u8,
src_rate: c.int,
dst_format: AudioFormat,
dst_channels: u8,
dst_rate: c.int) -> ^AudioStream ---
AudioStreamPut :: proc(stream: ^AudioStream, buf: rawptr, len: c.int) -> c.int ---
AudioStreamGet :: proc(stream: ^AudioStream, buf: rawptr, len: c.int) -> c.int ---
AudioStreamAvailable :: proc(stream: ^AudioStream) -> c.int ---
AudioStreamFlush :: proc(stream: ^AudioStream) -> c.int ---
AudioStreamClear :: proc(stream: ^AudioStream) ---
FreeAudioStream :: proc(stream: ^AudioStream) ---
}
MIX_MAXVOLUME :: 128
@(default_calling_convention="c", link_prefix="SDL_")
foreign lib {
MixAudio :: proc(dst: [^]u8, src: [^]u8, len: u32, volume: c.int) ---
MixAudioFormat :: proc(dst: [^]u8, src: [^]u8, format: AudioFormat, len: u32, volume: c.int) ---
QueueAudio :: proc(dev: AudioDeviceID, data: rawptr, len: u32) -> c.int ---
DequeueAudio :: proc(dev: AudioDeviceID, data: rawptr, len: u32) -> u32 ---
GetQueuedAudioSize :: proc(dev: AudioDeviceID) -> u32 ---
ClearQueuedAudio :: proc(dev: AudioDeviceID) ---
LockAudio :: proc() ---
LockAudioDevice :: proc(dev: AudioDeviceID) ---
UnlockAudio :: proc() ---
UnlockAudioDevice :: proc(dev: AudioDeviceID) --- /* Audio lock functions */
CloseAudio :: proc() ---
CloseAudioDevice :: proc(dev: AudioDeviceID) ---
}
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