125 lines
3.9 KiB
C
125 lines
3.9 KiB
C
/*
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* Wine Driver for CoreAudio / AudioUnit
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*
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* Copyright 2005, 2006 Emmanuel Maillard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(wave);
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#ifdef HAVE_AUDIOUNIT_AUDIOUNIT_H
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#include <AudioUnit/AudioUnit.h>
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extern OSStatus CoreAudio_woAudioUnitIOProc(void *inRefCon,
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AudioUnitRenderActionFlags *ioActionFlags,
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const AudioTimeStamp *inTimeStamp,
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UInt32 inBusNumber,
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UInt32 inNumberFrames,
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AudioBufferList *ioData);
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int AudioUnit_CreateDefaultAudioUnit(void *wwo, AudioUnit *au)
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{
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OSStatus err;
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Component comp;
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ComponentDescription desc;
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AURenderCallbackStruct callbackStruct;
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desc.componentType = kAudioUnitType_Output;
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desc.componentSubType = kAudioUnitSubType_DefaultOutput;
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desc.componentManufacturer = kAudioUnitManufacturer_Apple;
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desc.componentFlags = 0;
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desc.componentFlagsMask = 0;
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comp = FindNextComponent(NULL, &desc);
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if (comp == NULL)
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return 0;
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err = OpenAComponent(comp, au);
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if (comp == NULL)
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return 0;
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callbackStruct.inputProc = CoreAudio_woAudioUnitIOProc;
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callbackStruct.inputProcRefCon = wwo;
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err = AudioUnitSetProperty( *au,
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kAudioUnitProperty_SetRenderCallback,
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kAudioUnitScope_Input,
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0,
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&callbackStruct,
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sizeof(callbackStruct));
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return (err == noErr);
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}
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int AudioUnit_CloseAudioUnit(AudioUnit au)
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{
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OSStatus err = CloseComponent(au);
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return (err == noErr);
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}
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int AudioUnit_InitializeWithStreamDescription(AudioUnit au, AudioStreamBasicDescription *stream)
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{
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OSStatus err = noErr;
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err = AudioUnitSetProperty(au, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input,
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0, stream, sizeof(*stream));
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if (err != noErr)
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{
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ERR("AudioUnitSetProperty return an error %c%c%c%c\n", (char) (err >> 24), (char) (err >> 16), (char) (err >> 8), (char) err);
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return 0;
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}
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err = AudioUnitInitialize(au);
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if (err != noErr)
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{
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ERR("AudioUnitInitialize return an error %c%c%c%c\n", (char) (err >> 24), (char) (err >> 16), (char) (err >> 8), (char) err);
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return 0;
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}
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return 1;
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}
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int AudioUnit_SetVolume(AudioUnit au, float left, float right)
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{
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OSStatus err = noErr;
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err = AudioUnitSetParameter(au, kHALOutputParam_Volume, kAudioUnitParameterFlag_Output, 0, left, 0);
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if (err != noErr)
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{
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ERR("AudioUnitSetParameter return an error %c%c%c%c\n", (char) (err >> 24), (char) (err >> 16), (char) (err >> 8), (char) err);
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return 0;
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}
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return 1;
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}
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int AudioUnit_GetVolume(AudioUnit au, float *left, float *right)
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{
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OSStatus err = noErr;
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err = AudioUnitGetParameter(au, kHALOutputParam_Volume, kAudioUnitParameterFlag_Output, 0, left);
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if (err != noErr)
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{
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ERR("AudioUnitGetParameter return an error %c%c%c%c\n", (char) (err >> 24), (char) (err >> 16), (char) (err >> 8), (char) err);
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return 0;
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}
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*right = *left;
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return 1;
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}
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#endif
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