/** * OpenAL cross platform audio library * Copyright (C) 1999-2007 by authors. * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * Or go to http://www.gnu.org/copyleft/lgpl.html */ #include "config.h" #include <stdlib.h> #include <math.h> #include <float.h> #include "AL/al.h" #include "AL/alc.h" #include "alMain.h" #include "alError.h" #include "alSource.h" #include "alBuffer.h" #include "alThunk.h" #include "alAuxEffectSlot.h" enum Resampler DefaultResampler = LinearResampler; const ALsizei ResamplerPadding[ResamplerMax] = { 0, /* Point */ 1, /* Linear */ 2, /* Cubic */ }; const ALsizei ResamplerPrePadding[ResamplerMax] = { 0, /* Point */ 0, /* Linear */ 1, /* Cubic */ }; extern inline struct ALsource *LookupSource(ALCcontext *context, ALuint id); extern inline struct ALsource *RemoveSource(ALCcontext *context, ALuint id); static ALvoid InitSourceParams(ALsource *Source); static ALint64 GetSourceOffset(const ALsource *Source); static ALdouble GetSourceSecOffset(const ALsource *Source); static ALvoid GetSourceOffsets(const ALsource *Source, ALenum name, ALdouble *offsets, ALdouble updateLen); static ALint GetSampleOffset(ALsource *Source); typedef enum SrcFloatProp { sfPitch = AL_PITCH, sfGain = AL_GAIN, sfMinGain = AL_MIN_GAIN, sfMaxGain = AL_MAX_GAIN, sfMaxDistance = AL_MAX_DISTANCE, sfRolloffFactor = AL_ROLLOFF_FACTOR, sfDopplerFactor = AL_DOPPLER_FACTOR, sfConeOuterGain = AL_CONE_OUTER_GAIN, sfSecOffset = AL_SEC_OFFSET, sfSampleOffset = AL_SAMPLE_OFFSET, sfByteOffset = AL_BYTE_OFFSET, sfConeInnerAngle = AL_CONE_INNER_ANGLE, sfConeOuterAngle = AL_CONE_OUTER_ANGLE, sfRefDistance = AL_REFERENCE_DISTANCE, sfPosition = AL_POSITION, sfVelocity = AL_VELOCITY, sfDirection = AL_DIRECTION, sfSourceRelative = AL_SOURCE_RELATIVE, sfLooping = AL_LOOPING, sfBuffer = AL_BUFFER, sfSourceState = AL_SOURCE_STATE, sfBuffersQueued = AL_BUFFERS_QUEUED, sfBuffersProcessed = AL_BUFFERS_PROCESSED, sfSourceType = AL_SOURCE_TYPE, /* ALC_EXT_EFX */ sfConeOuterGainHF = AL_CONE_OUTER_GAINHF, sfAirAbsorptionFactor = AL_AIR_ABSORPTION_FACTOR, sfRoomRolloffFactor = AL_ROOM_ROLLOFF_FACTOR, sfDirectFilterGainHFAuto = AL_DIRECT_FILTER_GAINHF_AUTO, sfAuxSendFilterGainAuto = AL_AUXILIARY_SEND_FILTER_GAIN_AUTO, sfAuxSendFilterGainHFAuto = AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO, /* AL_SOFT_direct_channels */ sfDirectChannelsSOFT = AL_DIRECT_CHANNELS_SOFT, /* AL_EXT_source_distance_model */ sfDistanceModel = AL_DISTANCE_MODEL, /* AL_SOFT_buffer_sub_data / AL_SOFT_buffer_samples */ sfSampleRWOffsetsSOFT = AL_SAMPLE_RW_OFFSETS_SOFT, sfByteRWOffsetsSOFT = AL_BYTE_RW_OFFSETS_SOFT, /* AL_SOFT_source_latency */ sfSecOffsetLatencySOFT = AL_SEC_OFFSET_LATENCY_SOFT, } SrcFloatProp; typedef enum SrcIntProp { siMaxDistance = AL_MAX_DISTANCE, siRolloffFactor = AL_ROLLOFF_FACTOR, siRefDistance = AL_REFERENCE_DISTANCE, siSourceRelative = AL_SOURCE_RELATIVE, siConeInnerAngle = AL_CONE_INNER_ANGLE, siConeOuterAngle = AL_CONE_OUTER_ANGLE, siLooping = AL_LOOPING, siBuffer = AL_BUFFER, siSourceState = AL_SOURCE_STATE, siBuffersQueued = AL_BUFFERS_QUEUED, siBuffersProcessed = AL_BUFFERS_PROCESSED, siSourceType = AL_SOURCE_TYPE, siSecOffset = AL_SEC_OFFSET, siSampleOffset = AL_SAMPLE_OFFSET, siByteOffset = AL_BYTE_OFFSET, siDopplerFactor = AL_DOPPLER_FACTOR, siPosition = AL_POSITION, siVelocity = AL_VELOCITY, siDirection = AL_DIRECTION, /* ALC_EXT_EFX */ siDirectFilterGainHFAuto = AL_DIRECT_FILTER_GAINHF_AUTO, siAuxSendFilterGainAutio = AL_AUXILIARY_SEND_FILTER_GAIN_AUTO, siAuxSendFilterGainHFAuto = AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO, siDirectFilter = AL_DIRECT_FILTER, siAuxSendFilter = AL_AUXILIARY_SEND_FILTER, /* AL_SOFT_direct_channels */ siDirectChannelsSOFT = AL_DIRECT_CHANNELS_SOFT, /* AL_EXT_source_distance_model */ siDistanceModel = AL_DISTANCE_MODEL, /* AL_SOFT_buffer_sub_data / AL_SOFT_buffer_samples */ siSampleRWOffsetsSOFT = AL_SAMPLE_RW_OFFSETS_SOFT, siByteRWOffsetsSOFT = AL_BYTE_RW_OFFSETS_SOFT, /* AL_SOFT_source_latency */ siSampleOffsetLatencySOFT = AL_SAMPLE_OFFSET_LATENCY_SOFT, } SrcIntProp; static ALboolean SetSourcefv(ALsource *Source, ALCcontext *Context, SrcFloatProp prop, const ALfloat *values); static ALboolean SetSourceiv(ALsource *Source, ALCcontext *Context, SrcIntProp prop, const ALint *values); static ALboolean SetSourcei64v(ALsource *Source, ALCcontext *Context, SrcIntProp prop, const ALint64SOFT *values); static ALboolean GetSourcedv(const ALsource *Source, ALCcontext *Context, SrcFloatProp prop, ALdouble *values); static ALboolean GetSourceiv(const ALsource *Source, ALCcontext *Context, SrcIntProp prop, ALint *values); static ALboolean GetSourcei64v(const ALsource *Source, ALCcontext *Context, SrcIntProp prop, ALint64 *values); static ALint FloatValsByProp(ALenum prop) { if(prop != (ALenum)((SrcFloatProp)prop)) return 0; switch((SrcFloatProp)prop) { case sfPitch: case sfGain: case sfMinGain: case sfMaxGain: case sfMaxDistance: case sfRolloffFactor: case sfDopplerFactor: case sfConeOuterGain: case sfSecOffset: case sfSampleOffset: case sfByteOffset: case sfConeInnerAngle: case sfConeOuterAngle: case sfRefDistance: case sfConeOuterGainHF: case sfAirAbsorptionFactor: case sfRoomRolloffFactor: case sfDirectFilterGainHFAuto: case sfAuxSendFilterGainAuto: case sfAuxSendFilterGainHFAuto: case sfDirectChannelsSOFT: case sfDistanceModel: case sfSourceRelative: case sfLooping: case sfBuffer: case sfSourceState: case sfBuffersQueued: case sfBuffersProcessed: case sfSourceType: return 1; case sfSampleRWOffsetsSOFT: case sfByteRWOffsetsSOFT: return 2; case sfPosition: case sfVelocity: case sfDirection: return 3; case sfSecOffsetLatencySOFT: break; /* Double only */ } return 0; } static ALint DoubleValsByProp(ALenum prop) { if(prop != (ALenum)((SrcFloatProp)prop)) return 0; switch((SrcFloatProp)prop) { case sfPitch: case sfGain: case sfMinGain: case sfMaxGain: case sfMaxDistance: case sfRolloffFactor: case sfDopplerFactor: case sfConeOuterGain: case sfSecOffset: case sfSampleOffset: case sfByteOffset: case sfConeInnerAngle: case sfConeOuterAngle: case sfRefDistance: case sfConeOuterGainHF: case sfAirAbsorptionFactor: case sfRoomRolloffFactor: case sfDirectFilterGainHFAuto: case sfAuxSendFilterGainAuto: case sfAuxSendFilterGainHFAuto: case sfDirectChannelsSOFT: case sfDistanceModel: case sfSourceRelative: case sfLooping: case sfBuffer: case sfSourceState: case sfBuffersQueued: case sfBuffersProcessed: case sfSourceType: return 1; case sfSampleRWOffsetsSOFT: case sfByteRWOffsetsSOFT: case sfSecOffsetLatencySOFT: return 2; case sfPosition: case sfVelocity: case sfDirection: return 3; } return 0; } static ALint IntValsByProp(ALenum prop) { if(prop != (ALenum)((SrcIntProp)prop)) return 0; switch((SrcIntProp)prop) { case siMaxDistance: case siRolloffFactor: case siRefDistance: case siSourceRelative: case siConeInnerAngle: case siConeOuterAngle: case siLooping: case siBuffer: case siSourceState: case siBuffersQueued: case siBuffersProcessed: case siSourceType: case siSecOffset: case siSampleOffset: case siByteOffset: case siDopplerFactor: case siDirectFilterGainHFAuto: case siAuxSendFilterGainAutio: case siAuxSendFilterGainHFAuto: case siDirectFilter: case siDirectChannelsSOFT: case siDistanceModel: return 1; case siSampleRWOffsetsSOFT: case siByteRWOffsetsSOFT: return 2; case siPosition: case siVelocity: case siDirection: case siAuxSendFilter: return 3; case siSampleOffsetLatencySOFT: break; /* i64 only */ } return 0; } static ALint Int64ValsByProp(ALenum prop) { if(prop != (ALenum)((SrcIntProp)prop)) return 0; switch((SrcIntProp)prop) { case siMaxDistance: case siRolloffFactor: case siRefDistance: case siSourceRelative: case siConeInnerAngle: case siConeOuterAngle: case siLooping: case siBuffer: case siSourceState: case siBuffersQueued: case siBuffersProcessed: case siSourceType: case siSecOffset: case siSampleOffset: case siByteOffset: case siDopplerFactor: case siDirectFilterGainHFAuto: case siAuxSendFilterGainAutio: case siAuxSendFilterGainHFAuto: case siDirectFilter: case siDirectChannelsSOFT: case siDistanceModel: return 1; case siSampleRWOffsetsSOFT: case siByteRWOffsetsSOFT: case siSampleOffsetLatencySOFT: return 2; case siPosition: case siVelocity: case siDirection: case siAuxSendFilter: return 3; } return 0; } #define CHECKVAL(x) do { \ if(!(x)) \ SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_VALUE, AL_FALSE); \ } while(0) static ALboolean SetSourcefv(ALsource *Source, ALCcontext *Context, SrcFloatProp prop, const ALfloat *values) { ALint ival; switch(prop) { case AL_PITCH: CHECKVAL(*values >= 0.0f); Source->Pitch = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_CONE_INNER_ANGLE: CHECKVAL(*values >= 0.0f && *values <= 360.0f); Source->InnerAngle = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_CONE_OUTER_ANGLE: CHECKVAL(*values >= 0.0f && *values <= 360.0f); Source->OuterAngle = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_GAIN: CHECKVAL(*values >= 0.0f); Source->Gain = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_MAX_DISTANCE: CHECKVAL(*values >= 0.0f); Source->MaxDistance = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_ROLLOFF_FACTOR: CHECKVAL(*values >= 0.0f); Source->RollOffFactor = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_REFERENCE_DISTANCE: CHECKVAL(*values >= 0.0f); Source->RefDistance = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_MIN_GAIN: CHECKVAL(*values >= 0.0f && *values <= 1.0f); Source->MinGain = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_MAX_GAIN: CHECKVAL(*values >= 0.0f && *values <= 1.0f); Source->MaxGain = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_CONE_OUTER_GAIN: CHECKVAL(*values >= 0.0f && *values <= 1.0f); Source->OuterGain = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_CONE_OUTER_GAINHF: CHECKVAL(*values >= 0.0f && *values <= 1.0f); Source->OuterGainHF = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_AIR_ABSORPTION_FACTOR: CHECKVAL(*values >= 0.0f && *values <= 10.0f); Source->AirAbsorptionFactor = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_ROOM_ROLLOFF_FACTOR: CHECKVAL(*values >= 0.0f && *values <= 10.0f); Source->RoomRolloffFactor = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_DOPPLER_FACTOR: CHECKVAL(*values >= 0.0f && *values <= 1.0f); Source->DopplerFactor = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_SEC_OFFSET: case AL_SAMPLE_OFFSET: case AL_BYTE_OFFSET: CHECKVAL(*values >= 0.0f); LockContext(Context); Source->OffsetType = prop; Source->Offset = *values; if((Source->state == AL_PLAYING || Source->state == AL_PAUSED) && !Context->DeferUpdates) { if(ApplyOffset(Source) == AL_FALSE) { UnlockContext(Context); SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_VALUE, AL_FALSE); } } UnlockContext(Context); return AL_TRUE; case AL_SEC_OFFSET_LATENCY_SOFT: /* Query only */ SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_OPERATION, AL_FALSE); case AL_POSITION: CHECKVAL(isfinite(values[0]) && isfinite(values[1]) && isfinite(values[2])); LockContext(Context); Source->Position[0] = values[0]; Source->Position[1] = values[1]; Source->Position[2] = values[2]; UnlockContext(Context); Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_VELOCITY: CHECKVAL(isfinite(values[0]) && isfinite(values[1]) && isfinite(values[2])); LockContext(Context); Source->Velocity[0] = values[0]; Source->Velocity[1] = values[1]; Source->Velocity[2] = values[2]; UnlockContext(Context); Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_DIRECTION: CHECKVAL(isfinite(values[0]) && isfinite(values[1]) && isfinite(values[2])); LockContext(Context); Source->Orientation[0] = values[0]; Source->Orientation[1] = values[1]; Source->Orientation[2] = values[2]; UnlockContext(Context); Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case sfSampleRWOffsetsSOFT: case sfByteRWOffsetsSOFT: SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_OPERATION, AL_FALSE); case sfSourceRelative: case sfLooping: case sfSourceState: case sfSourceType: case sfDistanceModel: case sfDirectFilterGainHFAuto: case sfAuxSendFilterGainAuto: case sfAuxSendFilterGainHFAuto: case sfDirectChannelsSOFT: ival = (ALint)values[0]; return SetSourceiv(Source, Context, (SrcIntProp)prop, &ival); case sfBuffer: case sfBuffersQueued: case sfBuffersProcessed: ival = (ALint)((ALuint)values[0]); return SetSourceiv(Source, Context, (SrcIntProp)prop, &ival); } ERR("Unexpected property: 0x%04x\n", prop); SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_ENUM, AL_FALSE); } static ALboolean SetSourceiv(ALsource *Source, ALCcontext *Context, SrcIntProp prop, const ALint *values) { ALCdevice *device = Context->Device; ALbuffer *buffer = NULL; ALfilter *filter = NULL; ALeffectslot *slot = NULL; ALbufferlistitem *oldlist; ALfloat fvals[3]; switch(prop) { case AL_SOURCE_RELATIVE: CHECKVAL(*values == AL_FALSE || *values == AL_TRUE); Source->HeadRelative = (ALboolean)*values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_LOOPING: CHECKVAL(*values == AL_FALSE || *values == AL_TRUE); Source->Looping = (ALboolean)*values; return AL_TRUE; case AL_BUFFER: CHECKVAL(*values == 0 || (buffer=LookupBuffer(device, *values)) != NULL); LockContext(Context); if(!(Source->state == AL_STOPPED || Source->state == AL_INITIAL)) { UnlockContext(Context); SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_OPERATION, AL_FALSE); } Source->BuffersInQueue = 0; Source->BuffersPlayed = 0; if(buffer != NULL) { ALbufferlistitem *BufferListItem; /* Source is now Static */ Source->SourceType = AL_STATIC; /* Add the selected buffer to a one-item queue */ BufferListItem = malloc(sizeof(ALbufferlistitem)); BufferListItem->buffer = buffer; BufferListItem->next = NULL; BufferListItem->prev = NULL; IncrementRef(&buffer->ref); oldlist = ExchangePtr((XchgPtr*)&Source->queue, BufferListItem); Source->BuffersInQueue = 1; ReadLock(&buffer->lock); Source->NumChannels = ChannelsFromFmt(buffer->FmtChannels); Source->SampleSize = BytesFromFmt(buffer->FmtType); ReadUnlock(&buffer->lock); if(buffer->FmtChannels == FmtMono) Source->Update = CalcSourceParams; else Source->Update = CalcNonAttnSourceParams; Source->NeedsUpdate = AL_TRUE; } else { /* Source is now Undetermined */ Source->SourceType = AL_UNDETERMINED; oldlist = ExchangePtr((XchgPtr*)&Source->queue, NULL); } /* Delete all elements in the previous queue */ while(oldlist != NULL) { ALbufferlistitem *temp = oldlist; oldlist = temp->next; if(temp->buffer) DecrementRef(&temp->buffer->ref); free(temp); } UnlockContext(Context); return AL_TRUE; case siSourceState: case siSourceType: case siBuffersQueued: case siBuffersProcessed: /* Query only */ SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_OPERATION, AL_FALSE); case AL_SEC_OFFSET: case AL_SAMPLE_OFFSET: case AL_BYTE_OFFSET: CHECKVAL(*values >= 0); LockContext(Context); Source->OffsetType = prop; Source->Offset = *values; if((Source->state == AL_PLAYING || Source->state == AL_PAUSED) && !Context->DeferUpdates) { if(ApplyOffset(Source) == AL_FALSE) { UnlockContext(Context); SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_VALUE, AL_FALSE); } } UnlockContext(Context); return AL_TRUE; case siSampleRWOffsetsSOFT: case siByteRWOffsetsSOFT: /* Query only */ SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_OPERATION, AL_FALSE); case AL_DIRECT_FILTER: CHECKVAL(*values == 0 || (filter=LookupFilter(device, *values)) != NULL); LockContext(Context); if(!filter) { Source->DirectGain = 1.0f; Source->DirectGainHF = 1.0f; } else { Source->DirectGain = filter->Gain; Source->DirectGainHF = filter->GainHF; } UnlockContext(Context); Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_DIRECT_FILTER_GAINHF_AUTO: CHECKVAL(*values == AL_FALSE || *values == AL_TRUE); Source->DryGainHFAuto = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_AUXILIARY_SEND_FILTER_GAIN_AUTO: CHECKVAL(*values == AL_FALSE || *values == AL_TRUE); Source->WetGainAuto = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO: CHECKVAL(*values == AL_FALSE || *values == AL_TRUE); Source->WetGainHFAuto = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_DIRECT_CHANNELS_SOFT: CHECKVAL(*values == AL_FALSE || *values == AL_TRUE); Source->DirectChannels = *values; Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_DISTANCE_MODEL: CHECKVAL(*values == AL_NONE || *values == AL_INVERSE_DISTANCE || *values == AL_INVERSE_DISTANCE_CLAMPED || *values == AL_LINEAR_DISTANCE || *values == AL_LINEAR_DISTANCE_CLAMPED || *values == AL_EXPONENT_DISTANCE || *values == AL_EXPONENT_DISTANCE_CLAMPED); Source->DistanceModel = *values; if(Context->SourceDistanceModel) Source->NeedsUpdate = AL_TRUE; return AL_TRUE; case AL_AUXILIARY_SEND_FILTER: LockContext(Context); if(!((ALuint)values[1] < device->NumAuxSends && (values[0] == 0 || (slot=LookupEffectSlot(Context, values[0])) != NULL) && (values[2] == 0 || (filter=LookupFilter(device, values[2])) != NULL))) { UnlockContext(Context); SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_VALUE, AL_FALSE); } /* Add refcount on the new slot, and release the previous slot */ if(slot) IncrementRef(&slot->ref); slot = ExchangePtr((XchgPtr*)&Source->Send[values[1]].Slot, slot); if(slot) DecrementRef(&slot->ref); if(!filter) { /* Disable filter */ Source->Send[values[1]].Gain = 1.0f; Source->Send[values[1]].GainHF = 1.0f; } else { Source->Send[values[1]].Gain = filter->Gain; Source->Send[values[1]].GainHF = filter->GainHF; } Source->NeedsUpdate = AL_TRUE; UnlockContext(Context); return AL_TRUE; case AL_MAX_DISTANCE: case AL_ROLLOFF_FACTOR: case AL_CONE_INNER_ANGLE: case AL_CONE_OUTER_ANGLE: case AL_REFERENCE_DISTANCE: case siDopplerFactor: fvals[0] = (ALfloat)*values; return SetSourcefv(Source, Context, (int)prop, fvals); case AL_POSITION: case AL_VELOCITY: case AL_DIRECTION: fvals[0] = (ALfloat)values[0]; fvals[1] = (ALfloat)values[1]; fvals[2] = (ALfloat)values[2]; return SetSourcefv(Source, Context, (int)prop, fvals); case siSampleOffsetLatencySOFT: /* i64 only */ break; } ERR("Unexpected property: 0x%04x\n", prop); SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_ENUM, AL_FALSE); } static ALboolean SetSourcei64v(ALsource *Source, ALCcontext *Context, SrcIntProp prop, const ALint64SOFT *values) { ALfloat fvals[3]; ALint ivals[3]; switch(prop) { case siSampleRWOffsetsSOFT: case siByteRWOffsetsSOFT: case siSampleOffsetLatencySOFT: /* Query only */ SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_OPERATION, AL_FALSE); /* 1x int */ case AL_SOURCE_RELATIVE: case AL_LOOPING: case AL_SOURCE_STATE: case AL_BYTE_OFFSET: case AL_SAMPLE_OFFSET: case siSourceType: case siBuffersQueued: case siBuffersProcessed: case AL_DIRECT_FILTER_GAINHF_AUTO: case AL_AUXILIARY_SEND_FILTER_GAIN_AUTO: case AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO: case AL_DIRECT_CHANNELS_SOFT: case AL_DISTANCE_MODEL: CHECKVAL(*values <= INT_MAX && *values >= INT_MIN); ivals[0] = (ALint)*values; return SetSourceiv(Source, Context, (int)prop, ivals); /* 1x uint */ case AL_BUFFER: case AL_DIRECT_FILTER: CHECKVAL(*values <= UINT_MAX && *values >= 0); ivals[0] = (ALuint)*values; return SetSourceiv(Source, Context, (int)prop, ivals); /* 3x uint */ case AL_AUXILIARY_SEND_FILTER: CHECKVAL(values[0] <= UINT_MAX && values[0] >= 0 && values[1] <= UINT_MAX && values[1] >= 0 && values[2] <= UINT_MAX && values[2] >= 0); ivals[0] = (ALuint)values[0]; ivals[1] = (ALuint)values[1]; ivals[2] = (ALuint)values[2]; return SetSourceiv(Source, Context, (int)prop, ivals); /* 1x float */ case AL_MAX_DISTANCE: case AL_ROLLOFF_FACTOR: case AL_CONE_INNER_ANGLE: case AL_CONE_OUTER_ANGLE: case AL_REFERENCE_DISTANCE: case AL_SEC_OFFSET: case siDopplerFactor: fvals[0] = (ALfloat)*values; return SetSourcefv(Source, Context, (int)prop, fvals); /* 3x float */ case AL_POSITION: case AL_VELOCITY: case AL_DIRECTION: fvals[0] = (ALfloat)values[0]; fvals[1] = (ALfloat)values[1]; fvals[2] = (ALfloat)values[2]; return SetSourcefv(Source, Context, (int)prop, fvals); } ERR("Unexpected property: 0x%04x\n", prop); SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_ENUM, AL_FALSE); } #undef CHECKVAL static ALboolean GetSourcedv(const ALsource *Source, ALCcontext *Context, SrcFloatProp prop, ALdouble *values) { ALdouble offsets[2]; ALdouble updateLen; ALint ivals[3]; ALboolean err; switch(prop) { case AL_GAIN: *values = Source->Gain; return AL_TRUE; case AL_PITCH: *values = Source->Pitch; return AL_TRUE; case AL_MAX_DISTANCE: *values = Source->MaxDistance; return AL_TRUE; case AL_ROLLOFF_FACTOR: *values = Source->RollOffFactor; return AL_TRUE; case AL_REFERENCE_DISTANCE: *values = Source->RefDistance; return AL_TRUE; case AL_CONE_INNER_ANGLE: *values = Source->InnerAngle; return AL_TRUE; case AL_CONE_OUTER_ANGLE: *values = Source->OuterAngle; return AL_TRUE; case AL_MIN_GAIN: *values = Source->MinGain; return AL_TRUE; case AL_MAX_GAIN: *values = Source->MaxGain; return AL_TRUE; case AL_CONE_OUTER_GAIN: *values = Source->OuterGain; return AL_TRUE; case AL_SEC_OFFSET: case AL_SAMPLE_OFFSET: case AL_BYTE_OFFSET: LockContext(Context); updateLen = (ALdouble)Context->Device->UpdateSize / Context->Device->Frequency; GetSourceOffsets(Source, prop, offsets, updateLen); UnlockContext(Context); *values = offsets[0]; return AL_TRUE; case AL_CONE_OUTER_GAINHF: *values = Source->OuterGainHF; return AL_TRUE; case AL_AIR_ABSORPTION_FACTOR: *values = Source->AirAbsorptionFactor; return AL_TRUE; case AL_ROOM_ROLLOFF_FACTOR: *values = Source->RoomRolloffFactor; return AL_TRUE; case AL_DOPPLER_FACTOR: *values = Source->DopplerFactor; return AL_TRUE; case AL_SAMPLE_RW_OFFSETS_SOFT: case AL_BYTE_RW_OFFSETS_SOFT: LockContext(Context); updateLen = (ALdouble)Context->Device->UpdateSize / Context->Device->Frequency; GetSourceOffsets(Source, prop, values, updateLen); UnlockContext(Context); return AL_TRUE; case AL_SEC_OFFSET_LATENCY_SOFT: LockContext(Context); values[0] = GetSourceSecOffset(Source); values[1] = (ALdouble)ALCdevice_GetLatency(Context->Device) / 1000000000.0; UnlockContext(Context); return AL_TRUE; case AL_POSITION: LockContext(Context); values[0] = Source->Position[0]; values[1] = Source->Position[1]; values[2] = Source->Position[2]; UnlockContext(Context); return AL_TRUE; case AL_VELOCITY: LockContext(Context); values[0] = Source->Velocity[0]; values[1] = Source->Velocity[1]; values[2] = Source->Velocity[2]; UnlockContext(Context); return AL_TRUE; case AL_DIRECTION: LockContext(Context); values[0] = Source->Orientation[0]; values[1] = Source->Orientation[1]; values[2] = Source->Orientation[2]; UnlockContext(Context); return AL_TRUE; case AL_SOURCE_RELATIVE: case AL_LOOPING: case AL_BUFFER: case AL_SOURCE_STATE: case AL_BUFFERS_QUEUED: case AL_BUFFERS_PROCESSED: case AL_SOURCE_TYPE: case AL_DIRECT_FILTER_GAINHF_AUTO: case AL_AUXILIARY_SEND_FILTER_GAIN_AUTO: case AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO: case AL_DIRECT_CHANNELS_SOFT: case AL_DISTANCE_MODEL: if((err=GetSourceiv(Source, Context, (int)prop, ivals)) != AL_FALSE) *values = (ALdouble)ivals[0]; return err; } ERR("Unexpected property: 0x%04x\n", prop); SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_ENUM, AL_FALSE); } static ALboolean GetSourceiv(const ALsource *Source, ALCcontext *Context, SrcIntProp prop, ALint *values) { ALbufferlistitem *BufferList; ALdouble dvals[3]; ALboolean err; switch(prop) { case AL_SOURCE_RELATIVE: *values = Source->HeadRelative; return AL_TRUE; case AL_LOOPING: *values = Source->Looping; return AL_TRUE; case AL_BUFFER: LockContext(Context); BufferList = Source->queue; if(Source->SourceType != AL_STATIC) { ALuint i = Source->BuffersPlayed; while(i > 0) { BufferList = BufferList->next; i--; } } *values = ((BufferList && BufferList->buffer) ? BufferList->buffer->id : 0); UnlockContext(Context); return AL_TRUE; case AL_SOURCE_STATE: *values = Source->state; return AL_TRUE; case AL_BUFFERS_QUEUED: *values = Source->BuffersInQueue; return AL_TRUE; case AL_BUFFERS_PROCESSED: LockContext(Context); if(Source->Looping || Source->SourceType != AL_STREAMING) { /* Buffers on a looping source are in a perpetual state of * PENDING, so don't report any as PROCESSED */ *values = 0; } else *values = Source->BuffersPlayed; UnlockContext(Context); return AL_TRUE; case AL_SOURCE_TYPE: *values = Source->SourceType; return AL_TRUE; case AL_DIRECT_FILTER_GAINHF_AUTO: *values = Source->DryGainHFAuto; return AL_TRUE; case AL_AUXILIARY_SEND_FILTER_GAIN_AUTO: *values = Source->WetGainAuto; return AL_TRUE; case AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO: *values = Source->WetGainHFAuto; return AL_TRUE; case AL_DIRECT_CHANNELS_SOFT: *values = Source->DirectChannels; return AL_TRUE; case AL_DISTANCE_MODEL: *values = Source->DistanceModel; return AL_TRUE; case AL_MAX_DISTANCE: case AL_ROLLOFF_FACTOR: case AL_REFERENCE_DISTANCE: case AL_CONE_INNER_ANGLE: case AL_CONE_OUTER_ANGLE: case AL_SEC_OFFSET: case AL_SAMPLE_OFFSET: case AL_BYTE_OFFSET: case AL_DOPPLER_FACTOR: if((err=GetSourcedv(Source, Context, (int)prop, dvals)) != AL_FALSE) *values = (ALint)dvals[0]; return err; case AL_SAMPLE_RW_OFFSETS_SOFT: case AL_BYTE_RW_OFFSETS_SOFT: if((err=GetSourcedv(Source, Context, (int)prop, dvals)) != AL_FALSE) { values[0] = (ALint)dvals[0]; values[1] = (ALint)dvals[1]; } return err; case AL_POSITION: case AL_VELOCITY: case AL_DIRECTION: if((err=GetSourcedv(Source, Context, (int)prop, dvals)) != AL_FALSE) { values[0] = (ALint)dvals[0]; values[1] = (ALint)dvals[1]; values[2] = (ALint)dvals[2]; } return err; case siSampleOffsetLatencySOFT: /* i64 only */ break; case siDirectFilter: case siAuxSendFilter: /* ??? */ break; } ERR("Unexpected property: 0x%04x\n", prop); SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_ENUM, AL_FALSE); } static ALboolean GetSourcei64v(const ALsource *Source, ALCcontext *Context, SrcIntProp prop, ALint64 *values) { ALdouble dvals[3]; ALint ivals[3]; ALboolean err; switch(prop) { case AL_SAMPLE_OFFSET_LATENCY_SOFT: LockContext(Context); values[0] = GetSourceOffset(Source); values[1] = ALCdevice_GetLatency(Context->Device); UnlockContext(Context); return AL_TRUE; case AL_MAX_DISTANCE: case AL_ROLLOFF_FACTOR: case AL_REFERENCE_DISTANCE: case AL_CONE_INNER_ANGLE: case AL_CONE_OUTER_ANGLE: case AL_SEC_OFFSET: case AL_SAMPLE_OFFSET: case AL_BYTE_OFFSET: case AL_DOPPLER_FACTOR: if((err=GetSourcedv(Source, Context, (int)prop, dvals)) != AL_FALSE) *values = (ALint64)dvals[0]; return err; case AL_SAMPLE_RW_OFFSETS_SOFT: case AL_BYTE_RW_OFFSETS_SOFT: if((err=GetSourcedv(Source, Context, (int)prop, dvals)) != AL_FALSE) { values[0] = (ALint64)dvals[0]; values[1] = (ALint64)dvals[1]; } return err; case AL_POSITION: case AL_VELOCITY: case AL_DIRECTION: if((err=GetSourcedv(Source, Context, (int)prop, dvals)) != AL_FALSE) { values[0] = (ALint64)dvals[0]; values[1] = (ALint64)dvals[1]; values[2] = (ALint64)dvals[2]; } return err; case AL_SOURCE_RELATIVE: case AL_LOOPING: case AL_SOURCE_STATE: case AL_BUFFERS_QUEUED: case AL_BUFFERS_PROCESSED: case AL_SOURCE_TYPE: case AL_DIRECT_FILTER_GAINHF_AUTO: case AL_AUXILIARY_SEND_FILTER_GAIN_AUTO: case AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO: case AL_DIRECT_CHANNELS_SOFT: case AL_DISTANCE_MODEL: if((err=GetSourceiv(Source, Context, (int)prop, ivals)) != AL_FALSE) *values = ivals[0]; return err; case siBuffer: case siDirectFilter: if((err=GetSourceiv(Source, Context, (int)prop, ivals)) != AL_FALSE) *values = ((ALuint*)ivals)[0]; return err; case siAuxSendFilter: if((err=GetSourceiv(Source, Context, (int)prop, ivals)) != AL_FALSE) { values[0] = ((ALuint*)ivals)[0]; values[1] = ((ALuint*)ivals)[1]; values[2] = ((ALuint*)ivals)[2]; } return err; } ERR("Unexpected property: 0x%04x\n", prop); SET_ERROR_AND_RETURN_VALUE(Context, AL_INVALID_ENUM, AL_FALSE); } AL_API ALvoid AL_APIENTRY alGenSources(ALsizei n, ALuint *sources) { ALCcontext *context; ALsizei cur = 0; ALenum err; context = GetContextRef(); if(!context) return; if(!(n >= 0)) SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); for(cur = 0;cur < n;cur++) { ALsource *source = al_calloc(16, sizeof(ALsource)); if(!source) { alDeleteSources(cur, sources); SET_ERROR_AND_GOTO(context, AL_OUT_OF_MEMORY, done); } InitSourceParams(source); err = NewThunkEntry(&source->id); if(err == AL_NO_ERROR) err = InsertUIntMapEntry(&context->SourceMap, source->id, source); if(err != AL_NO_ERROR) { FreeThunkEntry(source->id); memset(source, 0, sizeof(ALsource)); al_free(source); alDeleteSources(cur, sources); SET_ERROR_AND_GOTO(context, err, done); } sources[cur] = source->id; } done: ALCcontext_DecRef(context); } AL_API ALvoid AL_APIENTRY alDeleteSources(ALsizei n, const ALuint *sources) { ALCcontext *context; ALbufferlistitem *BufferList; ALsource *Source; ALsizei i, j; context = GetContextRef(); if(!context) return; if(!(n >= 0)) SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); /* Check that all Sources are valid */ for(i = 0;i < n;i++) { if(LookupSource(context, sources[i]) == NULL) SET_ERROR_AND_GOTO(context, AL_INVALID_NAME, done); } for(i = 0;i < n;i++) { ALsource **srclist, **srclistend; if((Source=RemoveSource(context, sources[i])) == NULL) continue; FreeThunkEntry(Source->id); LockContext(context); srclist = context->ActiveSources; srclistend = srclist + context->ActiveSourceCount; while(srclist != srclistend) { if(*srclist == Source) { context->ActiveSourceCount--; *srclist = *(--srclistend); break; } srclist++; } UnlockContext(context); while(Source->queue != NULL) { BufferList = Source->queue; Source->queue = BufferList->next; if(BufferList->buffer != NULL) DecrementRef(&BufferList->buffer->ref); free(BufferList); } for(j = 0;j < MAX_SENDS;++j) { if(Source->Send[j].Slot) DecrementRef(&Source->Send[j].Slot->ref); Source->Send[j].Slot = NULL; } memset(Source, 0, sizeof(*Source)); al_free(Source); } done: ALCcontext_DecRef(context); } AL_API ALboolean AL_APIENTRY alIsSource(ALuint source) { ALCcontext *context; ALboolean ret; context = GetContextRef(); if(!context) return AL_FALSE; ret = (LookupSource(context, source) ? AL_TRUE : AL_FALSE); ALCcontext_DecRef(context); return ret; } AL_API ALvoid AL_APIENTRY alSourcef(ALuint source, ALenum param, ALfloat value) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!(FloatValsByProp(param) == 1)) alSetError(Context, AL_INVALID_ENUM); else SetSourcefv(Source, Context, param, &value); ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alSource3f(ALuint source, ALenum param, ALfloat value1, ALfloat value2, ALfloat value3) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!(FloatValsByProp(param) == 3)) alSetError(Context, AL_INVALID_ENUM); else { ALfloat fvals[3] = { value1, value2, value3 }; SetSourcefv(Source, Context, param, fvals); } ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alSourcefv(ALuint source, ALenum param, const ALfloat *values) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!values) alSetError(Context, AL_INVALID_VALUE); else if(!(FloatValsByProp(param) > 0)) alSetError(Context, AL_INVALID_ENUM); else SetSourcefv(Source, Context, param, values); ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alSourcedSOFT(ALuint source, ALenum param, ALdouble value) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!(DoubleValsByProp(param) == 1)) alSetError(Context, AL_INVALID_ENUM); else { ALfloat fval = (ALfloat)value; SetSourcefv(Source, Context, param, &fval); } ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alSource3dSOFT(ALuint source, ALenum param, ALdouble value1, ALdouble value2, ALdouble value3) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!(DoubleValsByProp(param) == 3)) alSetError(Context, AL_INVALID_ENUM); else { ALfloat fvals[3] = { (ALfloat)value1, (ALfloat)value2, (ALfloat)value3 }; SetSourcefv(Source, Context, param, fvals); } ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alSourcedvSOFT(ALuint source, ALenum param, const ALdouble *values) { ALCcontext *Context; ALsource *Source; ALint count; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!values) alSetError(Context, AL_INVALID_VALUE); else if(!((count=DoubleValsByProp(param)) > 0 && count <= 3)) alSetError(Context, AL_INVALID_ENUM); else { ALfloat fvals[3]; ALint i; for(i = 0;i < count;i++) fvals[i] = (ALfloat)values[i]; SetSourcefv(Source, Context, param, fvals); } ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alSourcei(ALuint source, ALenum param, ALint value) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!(IntValsByProp(param) == 1)) alSetError(Context, AL_INVALID_ENUM); else SetSourceiv(Source, Context, param, &value); ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alSource3i(ALuint source, ALenum param, ALint value1, ALint value2, ALint value3) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!(IntValsByProp(param) == 3)) alSetError(Context, AL_INVALID_ENUM); else { ALint ivals[3] = { value1, value2, value3 }; SetSourceiv(Source, Context, param, ivals); } ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alSourceiv(ALuint source, ALenum param, const ALint *values) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!values) alSetError(Context, AL_INVALID_VALUE); else if(!(IntValsByProp(param) > 0)) alSetError(Context, AL_INVALID_ENUM); else SetSourceiv(Source, Context, param, values); ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alSourcei64SOFT(ALuint source, ALenum param, ALint64SOFT value) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!(Int64ValsByProp(param) == 1)) alSetError(Context, AL_INVALID_ENUM); else SetSourcei64v(Source, Context, param, &value); ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alSource3i64SOFT(ALuint source, ALenum param, ALint64SOFT value1, ALint64SOFT value2, ALint64SOFT value3) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!(Int64ValsByProp(param) == 3)) alSetError(Context, AL_INVALID_ENUM); else { ALint64SOFT i64vals[3] = { value1, value2, value3 }; SetSourcei64v(Source, Context, param, i64vals); } ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alSourcei64vSOFT(ALuint source, ALenum param, const ALint64SOFT *values) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!values) alSetError(Context, AL_INVALID_VALUE); else if(!(Int64ValsByProp(param) > 0)) alSetError(Context, AL_INVALID_ENUM); else SetSourcei64v(Source, Context, param, values); ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alGetSourcef(ALuint source, ALenum param, ALfloat *value) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!value) alSetError(Context, AL_INVALID_VALUE); else if(!(FloatValsByProp(param) == 1)) alSetError(Context, AL_INVALID_ENUM); else { ALdouble dval; if(GetSourcedv(Source, Context, param, &dval) == AL_NO_ERROR) *value = (ALfloat)dval; } ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alGetSource3f(ALuint source, ALenum param, ALfloat *value1, ALfloat *value2, ALfloat *value3) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!(value1 && value2 && value3)) alSetError(Context, AL_INVALID_VALUE); else if(!(FloatValsByProp(param) == 3)) alSetError(Context, AL_INVALID_ENUM); else { ALdouble dvals[3]; if(GetSourcedv(Source, Context, param, dvals) == AL_NO_ERROR) { *value1 = (ALfloat)dvals[0]; *value2 = (ALfloat)dvals[1]; *value3 = (ALfloat)dvals[2]; } } ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alGetSourcefv(ALuint source, ALenum param, ALfloat *values) { ALCcontext *Context; ALsource *Source; ALint count; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!values) alSetError(Context, AL_INVALID_VALUE); else if(!((count=FloatValsByProp(param)) > 0 && count <= 3)) alSetError(Context, AL_INVALID_ENUM); else { ALdouble dvals[3]; if(GetSourcedv(Source, Context, param, dvals) == AL_NO_ERROR) { ALint i; for(i = 0;i < count;i++) values[i] = (ALfloat)dvals[i]; } } ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetSourcedSOFT(ALuint source, ALenum param, ALdouble *value) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!value) alSetError(Context, AL_INVALID_VALUE); else if(!(DoubleValsByProp(param) == 1)) alSetError(Context, AL_INVALID_ENUM); else GetSourcedv(Source, Context, param, value); ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetSource3dSOFT(ALuint source, ALenum param, ALdouble *value1, ALdouble *value2, ALdouble *value3) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!(value1 && value2 && value3)) alSetError(Context, AL_INVALID_VALUE); else if(!(DoubleValsByProp(param) == 3)) alSetError(Context, AL_INVALID_ENUM); else { ALdouble dvals[3]; if(GetSourcedv(Source, Context, param, dvals) == AL_NO_ERROR) { *value1 = dvals[0]; *value2 = dvals[1]; *value3 = dvals[2]; } } ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetSourcedvSOFT(ALuint source, ALenum param, ALdouble *values) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!values) alSetError(Context, AL_INVALID_VALUE); else if(!(DoubleValsByProp(param) > 0)) alSetError(Context, AL_INVALID_ENUM); else GetSourcedv(Source, Context, param, values); ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alGetSourcei(ALuint source, ALenum param, ALint *value) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!value) alSetError(Context, AL_INVALID_VALUE); else if(!(IntValsByProp(param) == 1)) alSetError(Context, AL_INVALID_ENUM); else GetSourceiv(Source, Context, param, value); ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetSource3i(ALuint source, ALenum param, ALint *value1, ALint *value2, ALint *value3) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!(value1 && value2 && value3)) alSetError(Context, AL_INVALID_VALUE); else if(!(IntValsByProp(param) == 3)) alSetError(Context, AL_INVALID_ENUM); else { ALint ivals[3]; if(GetSourceiv(Source, Context, param, ivals) == AL_NO_ERROR) { *value1 = ivals[0]; *value2 = ivals[1]; *value3 = ivals[2]; } } ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetSourceiv(ALuint source, ALenum param, ALint *values) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!values) alSetError(Context, AL_INVALID_VALUE); else if(!(IntValsByProp(param) > 0)) alSetError(Context, AL_INVALID_ENUM); else GetSourceiv(Source, Context, param, values); ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetSourcei64SOFT(ALuint source, ALenum param, ALint64SOFT *value) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!value) alSetError(Context, AL_INVALID_VALUE); else if(!(Int64ValsByProp(param) == 1)) alSetError(Context, AL_INVALID_ENUM); else GetSourcei64v(Source, Context, param, value); ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetSource3i64SOFT(ALuint source, ALenum param, ALint64SOFT *value1, ALint64SOFT *value2, ALint64SOFT *value3) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!(value1 && value2 && value3)) alSetError(Context, AL_INVALID_VALUE); else if(!(Int64ValsByProp(param) == 3)) alSetError(Context, AL_INVALID_ENUM); else { ALint64 i64vals[3]; if(GetSourcei64v(Source, Context, param, i64vals) == AL_NO_ERROR) { *value1 = i64vals[0]; *value2 = i64vals[1]; *value3 = i64vals[2]; } } ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetSourcei64vSOFT(ALuint source, ALenum param, ALint64SOFT *values) { ALCcontext *Context; ALsource *Source; Context = GetContextRef(); if(!Context) return; if((Source=LookupSource(Context, source)) == NULL) alSetError(Context, AL_INVALID_NAME); else if(!values) alSetError(Context, AL_INVALID_VALUE); else if(!(Int64ValsByProp(param) > 0)) alSetError(Context, AL_INVALID_ENUM); else GetSourcei64v(Source, Context, param, values); ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alSourcePlay(ALuint source) { alSourcePlayv(1, &source); } AL_API ALvoid AL_APIENTRY alSourcePlayv(ALsizei n, const ALuint *sources) { ALCcontext *context; ALsource *source; ALsizei i; context = GetContextRef(); if(!context) return; if(!(n >= 0)) SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); for(i = 0;i < n;i++) { if(!LookupSource(context, sources[i])) SET_ERROR_AND_GOTO(context, AL_INVALID_NAME, done); } LockContext(context); while(n > context->MaxActiveSources-context->ActiveSourceCount) { void *temp = NULL; ALsizei newcount; newcount = context->MaxActiveSources << 1; if(newcount > 0) temp = realloc(context->ActiveSources, sizeof(*context->ActiveSources) * newcount); if(!temp) { UnlockContext(context); SET_ERROR_AND_GOTO(context, AL_OUT_OF_MEMORY, done); } context->ActiveSources = temp; context->MaxActiveSources = newcount; } for(i = 0;i < n;i++) { source = LookupSource(context, sources[i]); if(context->DeferUpdates) source->new_state = AL_PLAYING; else SetSourceState(source, context, AL_PLAYING); } UnlockContext(context); done: ALCcontext_DecRef(context); } AL_API ALvoid AL_APIENTRY alSourcePause(ALuint source) { alSourcePausev(1, &source); } AL_API ALvoid AL_APIENTRY alSourcePausev(ALsizei n, const ALuint *sources) { ALCcontext *context; ALsource *source; ALsizei i; context = GetContextRef(); if(!context) return; if(!(n >= 0)) SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); for(i = 0;i < n;i++) { if(!LookupSource(context, sources[i])) SET_ERROR_AND_GOTO(context, AL_INVALID_NAME, done); } LockContext(context); for(i = 0;i < n;i++) { source = LookupSource(context, sources[i]); if(context->DeferUpdates) source->new_state = AL_PAUSED; else SetSourceState(source, context, AL_PAUSED); } UnlockContext(context); done: ALCcontext_DecRef(context); } AL_API ALvoid AL_APIENTRY alSourceStop(ALuint source) { alSourceStopv(1, &source); } AL_API ALvoid AL_APIENTRY alSourceStopv(ALsizei n, const ALuint *sources) { ALCcontext *context; ALsource *source; ALsizei i; context = GetContextRef(); if(!context) return; if(!(n >= 0)) SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); for(i = 0;i < n;i++) { if(!LookupSource(context, sources[i])) SET_ERROR_AND_GOTO(context, AL_INVALID_NAME, done); } LockContext(context); for(i = 0;i < n;i++) { source = LookupSource(context, sources[i]); source->new_state = AL_NONE; SetSourceState(source, context, AL_STOPPED); } UnlockContext(context); done: ALCcontext_DecRef(context); } AL_API ALvoid AL_APIENTRY alSourceRewind(ALuint source) { alSourceRewindv(1, &source); } AL_API ALvoid AL_APIENTRY alSourceRewindv(ALsizei n, const ALuint *sources) { ALCcontext *context; ALsource *source; ALsizei i; context = GetContextRef(); if(!context) return; if(!(n >= 0)) SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); for(i = 0;i < n;i++) { if(!LookupSource(context, sources[i])) SET_ERROR_AND_GOTO(context, AL_INVALID_NAME, done); } LockContext(context); for(i = 0;i < n;i++) { source = LookupSource(context, sources[i]); source->new_state = AL_NONE; SetSourceState(source, context, AL_INITIAL); } UnlockContext(context); done: ALCcontext_DecRef(context); } AL_API ALvoid AL_APIENTRY alSourceQueueBuffers(ALuint src, ALsizei nb, const ALuint *buffers) { ALCdevice *device; ALCcontext *context; ALsource *source; ALsizei i; ALbufferlistitem *BufferListStart = NULL; ALbufferlistitem *BufferList; ALbuffer *BufferFmt = NULL; if(nb == 0) return; context = GetContextRef(); if(!context) return; device = context->Device; if(!(nb >= 0)) SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); if((source=LookupSource(context, src)) == NULL) SET_ERROR_AND_GOTO(context, AL_INVALID_NAME, done); LockContext(context); if(source->SourceType == AL_STATIC) { UnlockContext(context); /* Can't queue on a Static Source */ SET_ERROR_AND_GOTO(context, AL_INVALID_OPERATION, done); } /* Check for a valid Buffer, for its frequency and format */ BufferList = source->queue; while(BufferList) { if(BufferList->buffer) { BufferFmt = BufferList->buffer; break; } BufferList = BufferList->next; } for(i = 0;i < nb;i++) { ALbuffer *buffer = NULL; if(buffers[i] && (buffer=LookupBuffer(device, buffers[i])) == NULL) { UnlockContext(context); SET_ERROR_AND_GOTO(context, AL_INVALID_NAME, done); } if(!BufferListStart) { BufferListStart = malloc(sizeof(ALbufferlistitem)); BufferListStart->buffer = buffer; BufferListStart->next = NULL; BufferListStart->prev = NULL; BufferList = BufferListStart; } else { BufferList->next = malloc(sizeof(ALbufferlistitem)); BufferList->next->buffer = buffer; BufferList->next->next = NULL; BufferList->next->prev = BufferList; BufferList = BufferList->next; } if(!buffer) continue; IncrementRef(&buffer->ref); ReadLock(&buffer->lock); if(BufferFmt == NULL) { BufferFmt = buffer; source->NumChannels = ChannelsFromFmt(buffer->FmtChannels); source->SampleSize = BytesFromFmt(buffer->FmtType); if(buffer->FmtChannels == FmtMono) source->Update = CalcSourceParams; else source->Update = CalcNonAttnSourceParams; source->NeedsUpdate = AL_TRUE; } else if(BufferFmt->Frequency != buffer->Frequency || BufferFmt->OriginalChannels != buffer->OriginalChannels || BufferFmt->OriginalType != buffer->OriginalType) { ReadUnlock(&buffer->lock); UnlockContext(context); SET_ERROR_AND_GOTO(context, AL_INVALID_OPERATION, done); } ReadUnlock(&buffer->lock); } /* Source is now streaming */ source->SourceType = AL_STREAMING; if(source->queue == NULL) source->queue = BufferListStart; else { /* Append to the end of the queue */ BufferList = source->queue; while(BufferList->next != NULL) BufferList = BufferList->next; BufferListStart->prev = BufferList; BufferList->next = BufferListStart; } BufferListStart = NULL; source->BuffersInQueue += nb; UnlockContext(context); done: while(BufferListStart) { BufferList = BufferListStart; BufferListStart = BufferList->next; if(BufferList->buffer) DecrementRef(&BufferList->buffer->ref); free(BufferList); } ALCcontext_DecRef(context); } AL_API ALvoid AL_APIENTRY alSourceUnqueueBuffers(ALuint src, ALsizei nb, ALuint *buffers) { ALCcontext *context; ALsource *source; ALsizei i; ALbufferlistitem *BufferList; if(nb == 0) return; context = GetContextRef(); if(!context) return; if(!(nb >= 0)) SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); if((source=LookupSource(context, src)) == NULL) SET_ERROR_AND_GOTO(context, AL_INVALID_NAME, done); LockContext(context); if(source->Looping || source->SourceType != AL_STREAMING || (ALuint)nb > source->BuffersPlayed) { UnlockContext(context); /* Trying to unqueue pending buffers, or a buffer that wasn't queued. */ SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); } for(i = 0;i < nb;i++) { BufferList = source->queue; source->queue = BufferList->next; source->BuffersInQueue--; source->BuffersPlayed--; if(BufferList->buffer) { buffers[i] = BufferList->buffer->id; DecrementRef(&BufferList->buffer->ref); } else buffers[i] = 0; free(BufferList); } if(source->queue) source->queue->prev = NULL; UnlockContext(context); done: ALCcontext_DecRef(context); } static ALvoid InitSourceParams(ALsource *Source) { ALuint i; Source->InnerAngle = 360.0f; Source->OuterAngle = 360.0f; Source->Pitch = 1.0f; Source->Position[0] = 0.0f; Source->Position[1] = 0.0f; Source->Position[2] = 0.0f; Source->Orientation[0] = 0.0f; Source->Orientation[1] = 0.0f; Source->Orientation[2] = 0.0f; Source->Velocity[0] = 0.0f; Source->Velocity[1] = 0.0f; Source->Velocity[2] = 0.0f; Source->RefDistance = 1.0f; Source->MaxDistance = FLT_MAX; Source->RollOffFactor = 1.0f; Source->Looping = AL_FALSE; Source->Gain = 1.0f; Source->MinGain = 0.0f; Source->MaxGain = 1.0f; Source->OuterGain = 0.0f; Source->OuterGainHF = 1.0f; Source->DryGainHFAuto = AL_TRUE; Source->WetGainAuto = AL_TRUE; Source->WetGainHFAuto = AL_TRUE; Source->AirAbsorptionFactor = 0.0f; Source->RoomRolloffFactor = 0.0f; Source->DopplerFactor = 1.0f; Source->DirectChannels = AL_FALSE; Source->DistanceModel = DefaultDistanceModel; Source->Resampler = DefaultResampler; Source->state = AL_INITIAL; Source->new_state = AL_NONE; Source->SourceType = AL_UNDETERMINED; Source->Offset = -1.0; Source->DirectGain = 1.0f; Source->DirectGainHF = 1.0f; for(i = 0;i < MAX_SENDS;i++) { Source->Send[i].Gain = 1.0f; Source->Send[i].GainHF = 1.0f; } Source->NeedsUpdate = AL_TRUE; Source->Hrtf.Moving = AL_FALSE; Source->Hrtf.Counter = 0; } /* SetSourceState * * Sets the source's new play state given its current state. */ ALvoid SetSourceState(ALsource *Source, ALCcontext *Context, ALenum state) { if(state == AL_PLAYING) { ALbufferlistitem *BufferList; ALsizei j, k; /* Check that there is a queue containing at least one valid, non zero * length Buffer. */ BufferList = Source->queue; while(BufferList) { if(BufferList->buffer != NULL && BufferList->buffer->SampleLen) break; BufferList = BufferList->next; } if(Source->state != AL_PLAYING) { for(j = 0;j < MAX_INPUT_CHANNELS;j++) { for(k = 0;k < SRC_HISTORY_LENGTH;k++) Source->Hrtf.History[j][k] = 0.0f; for(k = 0;k < HRIR_LENGTH;k++) { Source->Hrtf.Values[j][k][0] = 0.0f; Source->Hrtf.Values[j][k][1] = 0.0f; } } } if(Source->state != AL_PAUSED) { Source->state = AL_PLAYING; Source->position = 0; Source->position_fraction = 0; Source->BuffersPlayed = 0; } else Source->state = AL_PLAYING; // Check if an Offset has been set if(Source->Offset >= 0.0) ApplyOffset(Source); /* If there's nothing to play, or device is disconnected, go right to * stopped */ if(!BufferList || !Context->Device->Connected) { SetSourceState(Source, Context, AL_STOPPED); return; } for(j = 0;j < Context->ActiveSourceCount;j++) { if(Context->ActiveSources[j] == Source) break; } if(j == Context->ActiveSourceCount) Context->ActiveSources[Context->ActiveSourceCount++] = Source; } else if(state == AL_PAUSED) { if(Source->state == AL_PLAYING) { Source->state = AL_PAUSED; Source->Hrtf.Moving = AL_FALSE; Source->Hrtf.Counter = 0; } } else if(state == AL_STOPPED) { if(Source->state != AL_INITIAL) { Source->state = AL_STOPPED; Source->BuffersPlayed = Source->BuffersInQueue; Source->Hrtf.Moving = AL_FALSE; Source->Hrtf.Counter = 0; } Source->Offset = -1.0; } else if(state == AL_INITIAL) { if(Source->state != AL_INITIAL) { Source->state = AL_INITIAL; Source->position = 0; Source->position_fraction = 0; Source->BuffersPlayed = 0; Source->Hrtf.Moving = AL_FALSE; Source->Hrtf.Counter = 0; } Source->Offset = -1.0; } } /* GetSourceOffset * * Gets the current read offset for the given Source, in 32.32 fixed-point * samples. The offset is relative to the start of the queue (not the start of * the current buffer). */ static ALint64 GetSourceOffset(const ALsource *Source) { const ALbufferlistitem *BufferList; ALuint64 readPos; ALuint i; if(Source->state != AL_PLAYING && Source->state != AL_PAUSED) return 0; /* NOTE: This is the offset into the *current* buffer, so add the length of * any played buffers */ readPos = (ALuint64)Source->position << 32; readPos |= (ALuint64)Source->position_fraction << (32-FRACTIONBITS); BufferList = Source->queue; for(i = 0;i < Source->BuffersPlayed && BufferList;i++) { if(BufferList->buffer) readPos += (ALuint64)BufferList->buffer->SampleLen << 32; BufferList = BufferList->next; } return (ALint64)minu64(readPos, U64(0x7fffffffffffffff)); } /* GetSourceSecOffset * * Gets the current read offset for the given Source, in seconds. The offset is * relative to the start of the queue (not the start of the current buffer). */ static ALdouble GetSourceSecOffset(const ALsource *Source) { const ALbufferlistitem *BufferList; const ALbuffer *Buffer = NULL; ALuint64 readPos; ALuint i; BufferList = Source->queue; while(BufferList) { if(BufferList->buffer) { Buffer = BufferList->buffer; break; } BufferList = BufferList->next; } if((Source->state != AL_PLAYING && Source->state != AL_PAUSED) || !Buffer) return 0.0; /* NOTE: This is the offset into the *current* buffer, so add the length of * any played buffers */ readPos = (ALuint64)Source->position << FRACTIONBITS; readPos |= (ALuint64)Source->position_fraction; BufferList = Source->queue; for(i = 0;i < Source->BuffersPlayed && BufferList;i++) { if(BufferList->buffer) readPos += (ALuint64)BufferList->buffer->SampleLen << FRACTIONBITS; BufferList = BufferList->next; } return (ALdouble)readPos / (ALdouble)FRACTIONONE / (ALdouble)Buffer->Frequency; } /* GetSourceOffsets * * Gets the current read and write offsets for the given Source, in the * appropriate format (Bytes, Samples or Seconds). The offsets are relative to * the start of the queue (not the start of the current buffer). */ static ALvoid GetSourceOffsets(const ALsource *Source, ALenum name, ALdouble *offset, ALdouble updateLen) { const ALbufferlistitem *BufferList; const ALbuffer *Buffer = NULL; ALuint readPos, writePos; ALuint totalBufferLen; ALuint i; // Find the first valid Buffer in the Queue BufferList = Source->queue; while(BufferList) { if(BufferList->buffer) { Buffer = BufferList->buffer; break; } BufferList = BufferList->next; } if((Source->state != AL_PLAYING && Source->state != AL_PAUSED) || !Buffer) { offset[0] = 0.0; offset[1] = 0.0; return; } if(updateLen > 0.0 && updateLen < 0.015) updateLen = 0.015; /* NOTE: This is the offset into the *current* buffer, so add the length of * any played buffers */ readPos = Source->position; totalBufferLen = 0; BufferList = Source->queue; for(i = 0;BufferList;i++) { if(BufferList->buffer) { if(i < Source->BuffersPlayed) readPos += BufferList->buffer->SampleLen; totalBufferLen += BufferList->buffer->SampleLen; } BufferList = BufferList->next; } if(Source->state == AL_PLAYING) writePos = readPos + (ALuint)(updateLen*Buffer->Frequency); else writePos = readPos; if(Source->Looping) { readPos %= totalBufferLen; writePos %= totalBufferLen; } else { /* Wrap positions back to 0 */ if(readPos >= totalBufferLen) readPos = 0; if(writePos >= totalBufferLen) writePos = 0; } switch(name) { case AL_SEC_OFFSET: offset[0] = (ALdouble)readPos / Buffer->Frequency; offset[1] = (ALdouble)writePos / Buffer->Frequency; break; case AL_SAMPLE_OFFSET: case AL_SAMPLE_RW_OFFSETS_SOFT: offset[0] = (ALdouble)readPos; offset[1] = (ALdouble)writePos; break; case AL_BYTE_OFFSET: case AL_BYTE_RW_OFFSETS_SOFT: if(Buffer->OriginalType == UserFmtIMA4) { ALuint BlockSize = 36 * ChannelsFromFmt(Buffer->FmtChannels); ALuint FrameBlockSize = 65; /* Round down to nearest ADPCM block */ offset[0] = (ALdouble)(readPos / FrameBlockSize * BlockSize); if(Source->state != AL_PLAYING) offset[1] = offset[0]; else { /* Round up to nearest ADPCM block */ offset[1] = (ALdouble)((writePos+FrameBlockSize-1) / FrameBlockSize * BlockSize); } } else { ALuint FrameSize = FrameSizeFromUserFmt(Buffer->OriginalChannels, Buffer->OriginalType); offset[0] = (ALdouble)(readPos * FrameSize); offset[1] = (ALdouble)(writePos * FrameSize); } break; } } /* ApplyOffset * * Apply the stored playback offset to the Source. This function will update * the number of buffers "played" given the stored offset. */ ALboolean ApplyOffset(ALsource *Source) { const ALbufferlistitem *BufferList; const ALbuffer *Buffer; ALint bufferLen, totalBufferLen; ALint buffersPlayed; ALint offset; /* Get sample frame offset */ offset = GetSampleOffset(Source); if(offset == -1) return AL_FALSE; buffersPlayed = 0; totalBufferLen = 0; BufferList = Source->queue; while(BufferList) { Buffer = BufferList->buffer; bufferLen = Buffer ? Buffer->SampleLen : 0; if(bufferLen <= offset-totalBufferLen) { /* Offset is past this buffer so increment to the next buffer */ buffersPlayed++; } else if(totalBufferLen <= offset) { /* Offset is in this buffer */ Source->BuffersPlayed = buffersPlayed; Source->position = offset - totalBufferLen; Source->position_fraction = 0; return AL_TRUE; } totalBufferLen += bufferLen; BufferList = BufferList->next; } /* Offset is out of range of the queue */ return AL_FALSE; } /* GetSampleOffset * * Returns the sample offset into the Source's queue (from the Sample, Byte or * Second offset supplied by the application). This takes into account the fact * that the buffer format may have been modifed since. */ static ALint GetSampleOffset(ALsource *Source) { const ALbuffer *Buffer = NULL; const ALbufferlistitem *BufferList; ALint Offset = -1; /* Find the first valid Buffer in the Queue */ BufferList = Source->queue; while(BufferList) { if(BufferList->buffer) { Buffer = BufferList->buffer; break; } BufferList = BufferList->next; } if(!Buffer) { Source->Offset = -1.0; return -1; } switch(Source->OffsetType) { case AL_BYTE_OFFSET: /* Determine the ByteOffset (and ensure it is block aligned) */ Offset = (ALint)Source->Offset; if(Buffer->OriginalType == UserFmtIMA4) { Offset /= 36 * ChannelsFromUserFmt(Buffer->OriginalChannels); Offset *= 65; } else Offset /= FrameSizeFromUserFmt(Buffer->OriginalChannels, Buffer->OriginalType); break; case AL_SAMPLE_OFFSET: Offset = (ALint)Source->Offset; break; case AL_SEC_OFFSET: Offset = (ALint)(Source->Offset * Buffer->Frequency); break; } Source->Offset = -1.0; return Offset; } /* ReleaseALSources * * Destroys all sources in the source map. */ ALvoid ReleaseALSources(ALCcontext *Context) { ALsizei pos; ALuint j; for(pos = 0;pos < Context->SourceMap.size;pos++) { ALsource *temp = Context->SourceMap.array[pos].value; Context->SourceMap.array[pos].value = NULL; while(temp->queue != NULL) { ALbufferlistitem *BufferList = temp->queue; temp->queue = BufferList->next; if(BufferList->buffer != NULL) DecrementRef(&BufferList->buffer->ref); free(BufferList); } for(j = 0;j < MAX_SENDS;++j) { if(temp->Send[j].Slot) DecrementRef(&temp->Send[j].Slot->ref); temp->Send[j].Slot = NULL; } FreeThunkEntry(temp->id); memset(temp, 0, sizeof(*temp)); al_free(temp); } }