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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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 static char streamStr[512] = {0};
  30 static char *streamDescription(AudioStreamBasicDescription stream)
  31 {
  32     sprintf(streamStr, "\n mSampleRate : %f\n mFormatID : %c%c%c%c\n mFormatFlags : %lX\n mBytesPerPacket : %u\n mFramesPerPacket : %u\n mBytesPerFrame : %u\n mChannelsPerFrame : %u\n mBitsPerChannel : %u\n",
  33         stream.mSampleRate,
  34         (char) (stream.mFormatID >> 24),
  35         (char) (stream.mFormatID >> 16),
  36         (char) (stream.mFormatID >> 8),
  37         (char) stream.mFormatID,
  38         stream.mFormatFlags,
  39         stream.mBytesPerPacket,
  40         stream.mFramesPerPacket,
  41         stream.mBytesPerFrame,
  42         stream.mChannelsPerFrame,
  43         stream.mBitsPerChannel);
  44     return streamStr;
  45 }
  46
  47 extern OSStatus CoreAudio_woAudioUnitIOProc(void *inRefCon,
  48                                 AudioUnitRenderActionFlags *ioActionFlags,
  49                                 const AudioTimeStamp *inTimeStamp,
  50                                 UInt32 inBusNumber,
  51                                 UInt32 inNumberFrames,
  52                                 AudioBufferList *ioData);
  53
  54 int AudioUnit_CreateDefaultAudioUnit(void *wwo, AudioUnit *au)
  55 {
  56     OSStatus err;
  57     ComponentDescription desc;
  58     AURenderCallbackStruct callbackStruct;
  59
  60     desc.componentType = kAudioUnitType_Output;
  61     desc.componentSubType = kAudioUnitSubType_DefaultOutput;
  62     desc.componentManufacturer = kAudioUnitManufacturer_Apple;
  63     desc.componentFlags = 0;
  64     desc.componentFlagsMask = 0;
  65
  66     Component comp = FindNextComponent(NULL, &desc);
  67     if (comp == NULL)
  68         return 0;
  69
  70     err = OpenAComponent(comp, au);
  71     if (comp == NULL)
  72         return 0;
  73
  74     callbackStruct.inputProc = CoreAudio_woAudioUnitIOProc;
  75     callbackStruct.inputProcRefCon = wwo;
  76
  77     err = AudioUnitSetProperty( *au,
  78                                 kAudioUnitProperty_SetRenderCallback,
  79                                 kAudioUnitScope_Input,
  80                                 0,
  81                                 &callbackStruct,
  82                                 sizeof(callbackStruct));
  83     return (err == noErr);
  84 }
  85
  86 int AudioUnit_CloseAudioUnit(AudioUnit au)
  87 {
  88     OSStatus err = CloseComponent(au);
  89     return (err == noErr);
  90 }
  91
  92 int AudioUnit_InitializeWithStreamDescription(AudioUnit au, AudioStreamBasicDescription stream)
  93 {
  94     OSStatus err = noErr;
  95
  96     err = AudioUnitSetProperty(au, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input,
  97                                 0, &stream, sizeof(AudioStreamBasicDescription));
  98
  99     if (err != noErr)
 100     {
 101         ERR("AudioUnitSetProperty return an error %c%c%c%c\n", (char) (err >> 24), (char) (err >> 16), (char) (err >> 8), (char) err);
 102         return 0;
 103     }
 104
 105     err = AudioUnitInitialize(au);
 106     if (err != noErr)
 107     {
 108         ERR("AudioUnitInitialize return an error %c%c%c%c\n", (char) (err >> 24), (char) (err >> 16), (char) (err >> 8), (char) err);
 109         return 0;
 110     }
 111     return 1;
 112 }
 113
 114 int AudioUnit_SetVolume(AudioUnit au, float left, float right)
 115 {
 116     OSStatus err = noErr;
 117
 118     err = AudioUnitSetParameter(au, kHALOutputParam_Volume, kAudioUnitParameterFlag_Output, 0, left, 0);
 119
 120     if (err != noErr)
 121     {
 122         ERR("AudioUnitSetParameter return an error %c%c%c%c\n", (char) (err >> 24), (char) (err >> 16), (char) (err >> 8), (char) err);
 123         return 0;
 124     }
 125     return 1;
 126 }
 127
 128 int AudioUnit_GetVolume(AudioUnit au, float *left, float *right)
 129 {
 130     OSStatus err = noErr;
 131
 132     err = AudioUnitGetParameter(au, kHALOutputParam_Volume, kAudioUnitParameterFlag_Output, 0, left);
 133     if (err != noErr)
 134     {
 135         ERR("AudioUnitGetParameter return an error %c%c%c%c\n", (char) (err >> 24), (char) (err >> 16), (char) (err >> 8), (char) err);
 136         return 0;
 137     }
 138     *right = *left;
 139     return 1;
 140 }
 141 #endif