dlls/winmm/winecoreaudio/audiounit.c

   1 /*
   2  * Wine Driver for CoreAudio / AudioUnit
   3  *
   4  * Copyright 2005, 2006 Emmanuel Maillard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/debug.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(wave);
  25
  26 #ifdef HAVE_AUDIOUNIT_AUDIOUNIT_H
  27 #include <AudioUnit/AudioUnit.h>
  28
  29 extern OSStatus CoreAudio_woAudioUnitIOProc(void *inRefCon,
  30                                 AudioUnitRenderActionFlags *ioActionFlags,
  31                                 const AudioTimeStamp *inTimeStamp,
  32                                 UInt32 inBusNumber,
  33                                 UInt32 inNumberFrames,
  34                                 AudioBufferList *ioData);
  35
  36 extern OSStatus CoreAudio_wiAudioUnitIOProc(void *inRefCon,
  37                                 AudioUnitRenderActionFlags *ioActionFlags,
  38                                 const AudioTimeStamp *inTimeStamp,
  39                                 UInt32 inBusNumber,
  40                                 UInt32 inNumberFrames,
  41                                 AudioBufferList *ioData);
  42
  43 int AudioUnit_CreateDefaultAudioUnit(void *wwo, AudioUnit *au)
  44 {
  45     OSStatus err;
  46     Component comp;
  47     ComponentDescription desc;
  48     AURenderCallbackStruct callbackStruct;
  49
  50     desc.componentType = kAudioUnitType_Output;
  51     desc.componentSubType = kAudioUnitSubType_DefaultOutput;
  52     desc.componentManufacturer = kAudioUnitManufacturer_Apple;
  53     desc.componentFlags = 0;
  54     desc.componentFlagsMask = 0;
  55
  56     comp = FindNextComponent(NULL, &desc);
  57     if (comp == NULL)
  58         return 0;
  59
  60     err = OpenAComponent(comp, au);
  61     if (comp == NULL)
  62         return 0;
  63
  64     callbackStruct.inputProc = CoreAudio_woAudioUnitIOProc;
  65     callbackStruct.inputProcRefCon = wwo;
  66
  67     err = AudioUnitSetProperty( *au,
  68                                 kAudioUnitProperty_SetRenderCallback,
  69                                 kAudioUnitScope_Input,
  70                                 0,
  71                                 &callbackStruct,
  72                                 sizeof(callbackStruct));
  73     return (err == noErr);
  74 }
  75
  76 int AudioUnit_CloseAudioUnit(AudioUnit au)
  77 {
  78     OSStatus err = CloseComponent(au);
  79     return (err == noErr);
  80 }
  81
  82 int AudioUnit_InitializeWithStreamDescription(AudioUnit au, AudioStreamBasicDescription *stream)
  83 {
  84     OSStatus err = noErr;
  85
  86     err = AudioUnitSetProperty(au, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input,
  87                                 0, stream, sizeof(*stream));
  88
  89     if (err != noErr)
  90     {
  91         ERR("AudioUnitSetProperty return an error %c%c%c%c\n", (char) (err >> 24), (char) (err >> 16), (char) (err >> 8), (char) err);
  92         return 0;
  93     }
  94
  95     err = AudioUnitInitialize(au);
  96     if (err != noErr)
  97     {
  98         ERR("AudioUnitInitialize return an error %c%c%c%c\n", (char) (err >> 24), (char) (err >> 16), (char) (err >> 8), (char) err);
  99         return 0;
 100     }
 101     return 1;
 102 }
 103
 104 int AudioUnit_SetVolume(AudioUnit au, float left, float right)
 105 {
 106     OSStatus err = noErr;
 107
 108     err = AudioUnitSetParameter(au, kHALOutputParam_Volume, kAudioUnitParameterFlag_Output, 0, left, 0);
 109
 110     if (err != noErr)
 111     {
 112         ERR("AudioUnitSetParameter return an error %c%c%c%c\n", (char) (err >> 24), (char) (err >> 16), (char) (err >> 8), (char) err);
 113         return 0;
 114     }
 115     return 1;
 116 }
 117
 118 int AudioUnit_GetVolume(AudioUnit au, float *left, float *right)
 119 {
 120     OSStatus err = noErr;
 121
 122     err = AudioUnitGetParameter(au, kHALOutputParam_Volume, kAudioUnitParameterFlag_Output, 0, left);
 123     if (err != noErr)
 124     {
 125         ERR("AudioUnitGetParameter return an error %c%c%c%c\n", (char) (err >> 24), (char) (err >> 16), (char) (err >> 8), (char) err);
 126         return 0;
 127     }
 128     *right = *left;
 129     return 1;
 130 }
 131
 132
 133 /* FIXME: implement sample rate conversion on input */
 134 int AudioUnit_GetInputDeviceSampleRate(void)
 135 {
 136     AudioDeviceID               defaultInputDevice;
 137     UInt32                      param;
 138     Float64                     sampleRate;
 139     OSStatus                    err;
 140
 141     param = sizeof(defaultInputDevice);
 142     err = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &param, &defaultInputDevice);
 143     if (err != noErr || defaultInputDevice == kAudioDeviceUnknown)
 144     {
 145         ERR("Couldn't get the default audio input device ID: %08lx\n", err);
 146         return 0;
 147     }
 148
 149     param = sizeof(sampleRate);
 150     err = AudioDeviceGetProperty(defaultInputDevice, 0, 1, kAudioDevicePropertyNominalSampleRate, &param, &sampleRate);
 151     if (err != noErr)
 152     {
 153         ERR("Couldn't get the device sample rate: %08lx\n", err);
 154         return 0;
 155     }
 156
 157     return sampleRate;
 158 }
 159
 160
 161 int AudioUnit_CreateInputUnit(void* wwi, AudioUnit* out_au,
 162         WORD nChannels, DWORD nSamplesPerSec, WORD wBitsPerSample,
 163         UInt32* outFrameCount)
 164 {
 165     OSStatus                    err = noErr;
 166     ComponentDescription        description;
 167     Component                   component;
 168     AudioUnit                   au;
 169     UInt32                      param;
 170     AURenderCallbackStruct      callback;
 171     AudioDeviceID               defaultInputDevice;
 172     AudioStreamBasicDescription desiredFormat;
 173
 174
 175     if (!outFrameCount)
 176     {
 177         ERR("Invalid parameter\n");
 178         return 0;
 179     }
 180
 181     /* Open the AudioOutputUnit */
 182     description.componentType           = kAudioUnitType_Output;
 183     description.componentSubType        = kAudioUnitSubType_HALOutput;
 184     description.componentManufacturer   = kAudioUnitManufacturer_Apple;
 185     description.componentFlags          = 0;
 186     description.componentFlagsMask      = 0;
 187
 188     component = FindNextComponent(NULL, &description);
 189     if (!component)
 190     {
 191         ERR("FindNextComponent(kAudioUnitSubType_HALOutput) failed\n");
 192         return 0;
 193     }
 194
 195     err = OpenAComponent(component, &au);
 196     if (err != noErr || au == NULL)
 197     {
 198         ERR("OpenAComponent failed: %08lx\n", err);
 199         return 0;
 200     }
 201
 202     /* Configure the AudioOutputUnit */
 203     /* The AUHAL has two buses (AKA elements).  Bus 0 is output from the app
 204      * to the device.  Bus 1 is input from the device to the app.  Each bus
 205      * has two ends (AKA scopes).  Data goes from the input scope to the
 206      * output scope.  The terminology is somewhat confusing because the terms
 207      * "input" and "output" have two meanings.  Here's a summary:
 208      *
 209      *      Bus 0, input scope: refers to the source of data to be output as sound
 210      *      Bus 0, output scope: refers to the actual sound output device
 211      *      Bus 1, input scope: refers to the actual sound input device
 212      *      Bus 1, output scope: refers to the destination of data received by the input device
 213      */
 214
 215     /* Enable input on the AUHAL */
 216     param = 1;
 217     err = AudioUnitSetProperty(au, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, 1, &param, sizeof(param));
 218     if (err != noErr)
 219     {
 220         ERR("Couldn't enable input on AUHAL: %08lx\n", err);
 221         goto error;
 222     }
 223
 224     /* Disable Output on the AUHAL */
 225     param = 0;
 226     err = AudioUnitSetProperty(au, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, 0, &param, sizeof(param));
 227     if (err != noErr)
 228     {
 229         ERR("Couldn't disable output on AUHAL: %08lx\n", err);
 230         goto error;
 231     }
 232
 233     /* Find the default input device */
 234     param = sizeof(defaultInputDevice);
 235     err = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &param, &defaultInputDevice);
 236     if (err != noErr || defaultInputDevice == kAudioDeviceUnknown)
 237     {
 238         ERR("Couldn't get the default audio device ID: %08lx\n", err);
 239         goto error;
 240     }
 241
 242     /* Set the current device to the default input device. */
 243     err = AudioUnitSetProperty(au, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &defaultInputDevice, sizeof(defaultInputDevice));
 244     if (err != noErr)
 245     {
 246         ERR("Couldn't set current device of AUHAL to default input device: %08lx\n", err);
 247         goto error;
 248     }
 249
 250     /* Setup render callback */
 251     /* This will be called when the AUHAL has input data.  However, it won't
 252      * be passed the data itself.  The callback will have to all AudioUnitRender. */
 253     callback.inputProc = CoreAudio_wiAudioUnitIOProc;
 254     callback.inputProcRefCon = wwi;
 255     err = AudioUnitSetProperty(au, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, 0, &callback, sizeof(callback));
 256     if (err != noErr)
 257     {
 258         ERR("Couldn't set input callback of AUHAL: %08lx\n", err);
 259         goto error;
 260     }
 261
 262     /* Setup the desired data format. */
 263     /* FIXME: implement sample rate conversion on input.  We shouldn't set
 264      * the mSampleRate of this to the desired sample rate.  We need to query
 265      * the input device and use that.  If they don't match, we need to set up
 266      * an AUConverter to do the sample rate conversion on a separate thread. */
 267     desiredFormat.mFormatID         = kAudioFormatLinearPCM;
 268     desiredFormat.mFormatFlags      = kLinearPCMFormatFlagIsPacked;
 269     if (wBitsPerSample != 8)
 270         desiredFormat.mFormatFlags |= kLinearPCMFormatFlagIsSignedInteger;
 271     desiredFormat.mSampleRate       = nSamplesPerSec;
 272     desiredFormat.mChannelsPerFrame = nChannels;
 273     desiredFormat.mFramesPerPacket  = 1;
 274     desiredFormat.mBitsPerChannel   = wBitsPerSample;
 275     desiredFormat.mBytesPerFrame    = desiredFormat.mBitsPerChannel * desiredFormat.mChannelsPerFrame / 8;
 276     desiredFormat.mBytesPerPacket   = desiredFormat.mBytesPerFrame * desiredFormat.mFramesPerPacket;
 277
 278     /* Set the AudioOutputUnit output data format */
 279     err = AudioUnitSetProperty(au, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 1, &desiredFormat, sizeof(desiredFormat));
 280     if (err != noErr)
 281     {
 282         ERR("Couldn't set desired input format of AUHAL: %08lx\n", err);
 283         goto error;
 284     }
 285
 286     /* Get the number of frames in the IO buffer(s) */
 287     param = sizeof(*outFrameCount);
 288     err = AudioUnitGetProperty(au, kAudioDevicePropertyBufferFrameSize, kAudioUnitScope_Global, 0, outFrameCount, &param);
 289     if (err != noErr)
 290     {
 291         ERR("Failed to get audio sample size: %08lx\n", err);
 292         goto error;
 293     }
 294
 295     TRACE("Frame count: %lu\n", *outFrameCount);
 296
 297     /* Initialize the AU */
 298     err = AudioUnitInitialize(au);
 299     if (err != noErr)
 300     {
 301         ERR("Failed to initialize AU: %08lx\n", err);
 302         goto error;
 303     }
 304
 305     *out_au = au;
 306
 307     return 1;
 308
 309 error:
 310     if (au)
 311         CloseComponent(au);
 312     return 0;
 313 }
 314
 315 #endif