"""This is a python binding for BASS library (http://www.un4seen.com)

Author: Victor Lin (bornstub@gmail.com)
Blog: http://ez2learn.com
"""

from _pybass import *

bassmix = windll.bassmix

# constants 
BASS_CONFIG_MIXER_FILTER = 0x10600
BASS_CONFIG_MIXER_BUFFER = 0x10601
BASS_CONFIG_SPLIT_BUFFER = 0x10610

BASS_MIXER_END = 0x10000 # end the stream when there are no sources
BASS_MIXER_NONSTOP = 0x20000 # don't stall when there are no sources
BASS_MIXER_RESUME = 0x1000 # resume stalled immediately upon new/unpaused source

BASS_MIXER_FILTER = 0x1000 # resampling filter
BASS_MIXER_BUFFER = 0x2000 # buffer data for BASS_Mixer_ChannelGetData/Level
BASS_MIXER_LIMIT = 0x4000 # limit mixer processing to the amount available from this source
BASS_MIXER_MATRIX = 0x10000 # matrix mixing
BASS_MIXER_PAUSE = 0x20000 # don't process the source
BASS_MIXER_DOWNMIX = 0x400000 # downmix to stereo/mono
BASS_MIXER_NORAMPIN = 0x800000# don't ramp-in the start

BASS_MIXER_ENV_FREQ = 1
BASS_MIXER_ENV_VOL = 2
BASS_MIXER_ENV_PAN = 3
BASS_MIXER_ENV_LOOP = 0x10000 # FLAG: loop

BASS_SYNC_MIXER_ENVELOPE = 0x10200

BASS_CTYPE_STREAM_MIXER = 0x10800
BASS_CTYPE_STREAM_SPLIT = 0x10801

# structures
class BASS_MIXER_NODE(Structure):
    _fields_ = [
        ("pos", QWORD),
        ("value", c_float)
    ]
    
# bassmix
BASS_Mixer_GetVersion = bassmix.BASS_Mixer_GetVersion
BASS_Mixer_GetVersion.restype = DWORD
BASS_Mixer_GetVersion.argtypes = []

BASS_Mixer_StreamCreate = bassmix.BASS_Mixer_StreamCreate
BASS_Mixer_StreamCreate.restype = HSTREAM
BASS_Mixer_StreamCreate.argtypes = [DWORD, DWORD, DWORD]

BASS_Mixer_StreamAddChannel = bassmix.BASS_Mixer_StreamAddChannel
BASS_Mixer_StreamAddChannel.restype = BOOL
BASS_Mixer_StreamAddChannel.argtypes = [HSTREAM, DWORD, DWORD]

BASS_Mixer_StreamAddChannelEx = bassmix.BASS_Mixer_StreamAddChannelEx
BASS_Mixer_StreamAddChannelEx.restype = BOOL
BASS_Mixer_StreamAddChannelEx.argtypes = [HSTREAM, DWORD, DWORD, QWORD, QWORD]

# channel

BASS_Mixer_ChannelGetMixer = bassmix.BASS_Mixer_ChannelGetMixer
BASS_Mixer_ChannelGetMixer.restype = HSTREAM
BASS_Mixer_ChannelGetMixer.argtypes = [DWORD]

BASS_Mixer_ChannelFlags = bassmix.BASS_Mixer_ChannelFlags
BASS_Mixer_ChannelFlags.restype = DWORD
BASS_Mixer_ChannelFlags.argtypes = [DWORD, DWORD, DWORD]

BASS_Mixer_ChannelRemove = bassmix.BASS_Mixer_ChannelRemove
BASS_Mixer_ChannelRemove.restype = BOOL
BASS_Mixer_ChannelRemove.argtypes = [DWORD]

BASS_Mixer_ChannelSetPosition = bassmix.BASS_Mixer_ChannelSetPosition
BASS_Mixer_ChannelSetPosition.restype = BOOL
BASS_Mixer_ChannelSetPosition.argtypes = [DWORD, QWORD, DWORD]

BASS_Mixer_ChannelGetPosition = bassmix.BASS_Mixer_ChannelGetPosition
BASS_Mixer_ChannelGetPosition.restype = QWORD
BASS_Mixer_ChannelGetPosition.argtypes = [DWORD, DWORD]

BASS_Mixer_ChannelGetLevel = bassmix.BASS_Mixer_ChannelGetLevel
BASS_Mixer_ChannelGetLevel.restype = DWORD
BASS_Mixer_ChannelGetLevel.argtypes = [DWORD]

BASS_Mixer_ChannelGetData = bassmix.BASS_Mixer_ChannelGetData
BASS_Mixer_ChannelGetData.restype = DWORD
BASS_Mixer_ChannelGetData.argtypes = [DWORD, c_void_p, DWORD]

BASS_Mixer_ChannelSetSync = bassmix.BASS_Mixer_ChannelSetSync
BASS_Mixer_ChannelSetSync.restype = HSYNC
BASS_Mixer_ChannelSetSync.argtypes = [DWORD, DWORD, QWORD, SYNCPROC, c_void_p]

BASS_Mixer_ChannelRemoveSync = bassmix.BASS_Mixer_ChannelRemoveSync
BASS_Mixer_ChannelRemoveSync.restype = BOOL
BASS_Mixer_ChannelRemoveSync.argtypes = [DWORD, HSYNC]

BASS_Mixer_ChannelSetMatrix = bassmix.BASS_Mixer_ChannelSetMatrix
BASS_Mixer_ChannelSetMatrix.restype = BOOL
BASS_Mixer_ChannelSetMatrix.argtypes = [DWORD, POINTER(c_float)]

BASS_Mixer_ChannelGetMatrix = bassmix.BASS_Mixer_ChannelGetMatrix
BASS_Mixer_ChannelGetMatrix.restype = BOOL
BASS_Mixer_ChannelGetMatrix.argtypes = [DWORD, POINTER(c_float)]

BASS_Mixer_ChannelSetEnvelope = bassmix.BASS_Mixer_ChannelSetEnvelope
BASS_Mixer_ChannelSetEnvelope.restype = BOOL
BASS_Mixer_ChannelSetEnvelope.argtypes = [DWORD, DWORD, POINTER(BASS_MIXER_NODE), DWORD]

BASS_Mixer_ChannelSetEnvelopePos = bassmix.BASS_Mixer_ChannelSetEnvelopePos
BASS_Mixer_ChannelSetEnvelopePos.restype = BOOL
BASS_Mixer_ChannelSetEnvelopePos.argtypes = [DWORD, DWORD, QWORD]

BASS_Mixer_ChannelGetEnvelopePos = bassmix.BASS_Mixer_ChannelGetEnvelopePos
BASS_Mixer_ChannelGetEnvelopePos.restype = QWORD
BASS_Mixer_ChannelGetEnvelopePos.argtypes = [DWORD, DWORD, POINTER(c_float)]

# split
BASS_Split_StreamCreate = bassmix.BASS_Split_StreamCreate
BASS_Split_StreamCreate.restype = HSTREAM
BASS_Split_StreamCreate.argtypes = [DWORD, DWORD, POINTER(c_int)]

BASS_Split_StreamGetSource = bassmix.BASS_Split_StreamGetSource
BASS_Split_StreamGetSource.restype = DWORD
BASS_Split_StreamGetSource.argtypes = [HSTREAM]

BASS_Split_StreamReset = bassmix.BASS_Split_StreamReset
BASS_Split_StreamReset.restype = BOOL
BASS_Split_StreamReset.argtypes = [DWORD]