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author | rubidium <rubidium@openttd.org> | 2007-01-02 19:19:48 +0000 |
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committer | rubidium <rubidium@openttd.org> | 2007-01-02 19:19:48 +0000 |
commit | 66bbf336c6af7353ef0aeed58002c46543b30635 (patch) | |
tree | ad4a63860df2626b22f77e7dac712e958bea54cb /src/sound/cocoa_s.c | |
parent | ccc0a3f4dbf58c005b22341ac8874252924690cd (diff) | |
download | openttd-66bbf336c6af7353ef0aeed58002c46543b30635.tar.xz |
(svn r7759) -Merge: makefile rewrite. This merge features:
- A proper ./configure, so everything needs to be configured only once, not for every make.
- Usage of makedepend when available. This greatly reduces the time needed for generating the dependencies.
- A generator for all project files. There is a single file with sources, which is used to generate Makefiles and the project files for MSVC.
- Proper support for OSX universal binaries.
- Object files for non-MSVC compiles are also placed in separate directories, making is faster to switch between debug and release compiles and it does not touch the directory with the source files.
- Functionality to make a bundle of all needed files for for example a nightly or distribution of a binary with all needed GRFs and language files.
Note: as this merge moves almost all files, it is recommended to make a backup of your working copy before updating your working copy.
Diffstat (limited to 'src/sound/cocoa_s.c')
-rw-r--r-- | src/sound/cocoa_s.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/sound/cocoa_s.c b/src/sound/cocoa_s.c new file mode 100644 index 000000000..3b758ad71 --- /dev/null +++ b/src/sound/cocoa_s.c @@ -0,0 +1,149 @@ +/* $Id$ */ + +/***************************************************************************** + * Cocoa sound driver * + * Known things left to do: * + * - Might need to do endian checking for it to work on both ppc and x86 * + *****************************************************************************/ + +#ifdef WITH_COCOA + +#include <AudioUnit/AudioUnit.h> + +/* Name conflict */ +#define Rect OTTDRect +#define Point OTTDPoint +#define WindowClass OTTDWindowClass +/* Defined in stdbool.h */ +#ifndef __cplusplus +# ifndef __BEOS__ +# undef bool +# undef false +# undef true +# endif +#endif + +#include "../stdafx.h" +#include "../openttd.h" +#include "../debug.h" +#include "../driver.h" +#include "../mixer.h" +#include "../sdl.h" + +#include "cocoa_s.h" + +#undef WindowClass +#undef Point +#undef Rect + + +static AudioUnit _outputAudioUnit; + +/* The CoreAudio callback */ +static OSStatus audioCallback(void *inRefCon, AudioUnitRenderActionFlags inActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, AudioBuffer *ioData) +{ + MxMixSamples(ioData->mData, ioData->mDataByteSize / 4); + + return noErr; +} + + +static const char *CocoaSoundStart(const char * const *parm) +{ + Component comp; + ComponentDescription desc; + struct AudioUnitInputCallback callback; + AudioStreamBasicDescription requestedDesc; + + /* Setup a AudioStreamBasicDescription with the requested format */ + requestedDesc.mFormatID = kAudioFormatLinearPCM; + requestedDesc.mFormatFlags = kLinearPCMFormatFlagIsPacked; + requestedDesc.mChannelsPerFrame = 2; + requestedDesc.mSampleRate = GetDriverParamInt(parm, "hz", 11025); + + requestedDesc.mBitsPerChannel = 16; + requestedDesc.mFormatFlags |= kLinearPCMFormatFlagIsSignedInteger; + +#ifdef TTD_BIG_ENDIAN + requestedDesc.mFormatFlags |= kLinearPCMFormatFlagIsBigEndian; +#endif + + requestedDesc.mFramesPerPacket = 1; + requestedDesc.mBytesPerFrame = requestedDesc.mBitsPerChannel * requestedDesc.mChannelsPerFrame / 8; + requestedDesc.mBytesPerPacket = requestedDesc.mBytesPerFrame * requestedDesc.mFramesPerPacket; + + + /* Locate the default output audio unit */ + desc.componentType = kAudioUnitComponentType; + desc.componentSubType = kAudioUnitSubType_Output; + desc.componentManufacturer = kAudioUnitID_DefaultOutput; + desc.componentFlags = 0; + desc.componentFlagsMask = 0; + + comp = FindNextComponent (NULL, &desc); + if (comp == NULL) { + return "cocoa_s: Failed to start CoreAudio: FindNextComponent returned NULL"; + } + + /* Open & initialize the default output audio unit */ + if (OpenAComponent(comp, &_outputAudioUnit) != noErr) { + return "cocoa_s: Failed to start CoreAudio: OpenAComponent"; + } + + if (AudioUnitInitialize(_outputAudioUnit) != noErr) { + return "cocoa_s: Failed to start CoreAudio: AudioUnitInitialize"; + } + + /* Set the input format of the audio unit. */ + if (AudioUnitSetProperty(_outputAudioUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &requestedDesc, sizeof(requestedDesc)) != noErr) { + return "cocoa_s: Failed to start CoreAudio: AudioUnitSetProperty (kAudioUnitProperty_StreamFormat)"; + } + + /* Set the audio callback */ + callback.inputProc = audioCallback; + callback.inputProcRefCon = NULL; + if (AudioUnitSetProperty(_outputAudioUnit, kAudioUnitProperty_SetInputCallback, kAudioUnitScope_Input, 0, &callback, sizeof(callback)) != noErr) { + return "cocoa_s: Failed to start CoreAudio: AudioUnitSetProperty (kAudioUnitProperty_SetInputCallback)"; + } + + /* Finally, start processing of the audio unit */ + if (AudioOutputUnitStart(_outputAudioUnit) != noErr) { + return "cocoa_s: Failed to start CoreAudio: AudioOutputUnitStart"; + } + + /* We're running! */ + return NULL; +} + + +static void CocoaSoundStop(void) +{ + struct AudioUnitInputCallback callback; + + /* stop processing the audio unit */ + if (AudioOutputUnitStop(_outputAudioUnit) != noErr) { + DEBUG(driver, 0, "cocoa_s: Core_CloseAudio: AudioOutputUnitStop failed"); + return; + } + + /* Remove the input callback */ + callback.inputProc = 0; + callback.inputProcRefCon = 0; + if (AudioUnitSetProperty(_outputAudioUnit, kAudioUnitProperty_SetInputCallback, kAudioUnitScope_Input, 0, &callback, sizeof(callback)) != noErr) { + DEBUG(driver, 0, "cocoa_s: Core_CloseAudio: AudioUnitSetProperty (kAudioUnitProperty_SetInputCallback) failed"); + return; + } + + if (CloseComponent(_outputAudioUnit) != noErr) { + DEBUG(driver, 0, "cocoa_s: Core_CloseAudio: CloseComponent failed"); + return; + } +} + + +const HalSoundDriver _cocoa_sound_driver = { + CocoaSoundStart, + CocoaSoundStop, +}; + +#endif /* WITH_COCOA */ |