From d8239786b306ffda6d5d73753d01f0ad3358e1a0 Mon Sep 17 00:00:00 2001 From: Jesse Hall Date: Tue, 17 Jul 2012 16:58:55 -0700 Subject: Delete sdl-1.2.12 Change-Id: Ia96f80df04035ae84be3af468c945f2cec14f99c --- .../sdl-1.2.12/src/audio/macosx/SDL_coreaudio.c | 277 --------------------- 1 file changed, 277 deletions(-) delete mode 100644 distrib/sdl-1.2.12/src/audio/macosx/SDL_coreaudio.c (limited to 'distrib/sdl-1.2.12/src/audio/macosx/SDL_coreaudio.c') diff --git a/distrib/sdl-1.2.12/src/audio/macosx/SDL_coreaudio.c b/distrib/sdl-1.2.12/src/audio/macosx/SDL_coreaudio.c deleted file mode 100644 index 2cae958..0000000 --- a/distrib/sdl-1.2.12/src/audio/macosx/SDL_coreaudio.c +++ /dev/null @@ -1,277 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2006 Sam Lantinga - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - - Sam Lantinga - slouken@libsdl.org -*/ -#include "SDL_config.h" - -#include - -#include "SDL_audio.h" -#include "../SDL_audio_c.h" -#include "../SDL_sysaudio.h" -#include "SDL_coreaudio.h" - - -/* Audio driver functions */ - -static int Core_OpenAudio(_THIS, SDL_AudioSpec *spec); -static void Core_WaitAudio(_THIS); -static void Core_PlayAudio(_THIS); -static Uint8 *Core_GetAudioBuf(_THIS); -static void Core_CloseAudio(_THIS); - -/* Audio driver bootstrap functions */ - -static int Audio_Available(void) -{ - return(1); -} - -static void Audio_DeleteDevice(SDL_AudioDevice *device) -{ - SDL_free(device->hidden); - SDL_free(device); -} - -static SDL_AudioDevice *Audio_CreateDevice(int devindex) -{ - SDL_AudioDevice *this; - - /* Initialize all variables that we clean on shutdown */ - this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice)); - if ( this ) { - SDL_memset(this, 0, (sizeof *this)); - this->hidden = (struct SDL_PrivateAudioData *) - SDL_malloc((sizeof *this->hidden)); - } - if ( (this == NULL) || (this->hidden == NULL) ) { - SDL_OutOfMemory(); - if ( this ) { - SDL_free(this); - } - return(0); - } - SDL_memset(this->hidden, 0, (sizeof *this->hidden)); - - /* Set the function pointers */ - this->OpenAudio = Core_OpenAudio; - this->WaitAudio = Core_WaitAudio; - this->PlayAudio = Core_PlayAudio; - this->GetAudioBuf = Core_GetAudioBuf; - this->CloseAudio = Core_CloseAudio; - - this->free = Audio_DeleteDevice; - - return this; -} - -AudioBootStrap COREAUDIO_bootstrap = { - "coreaudio", "Mac OS X CoreAudio", - Audio_Available, Audio_CreateDevice -}; - -/* The CoreAudio callback */ -static OSStatus audioCallback (void *inRefCon, - AudioUnitRenderActionFlags inActionFlags, - const AudioTimeStamp *inTimeStamp, - UInt32 inBusNumber, - AudioBuffer *ioData) -{ - SDL_AudioDevice *this = (SDL_AudioDevice *)inRefCon; - UInt32 remaining, len; - void *ptr; - - /* Only do anything if audio is enabled and not paused */ - if ( ! this->enabled || this->paused ) { - SDL_memset(ioData->mData, this->spec.silence, ioData->mDataByteSize); - return 0; - } - - /* No SDL conversion should be needed here, ever, since we accept - any input format in OpenAudio, and leave the conversion to CoreAudio. - */ - /* - assert(!this->convert.needed); - assert(this->spec.channels == ioData->mNumberChannels); - */ - - remaining = ioData->mDataByteSize; - ptr = ioData->mData; - while (remaining > 0) { - if (bufferOffset >= bufferSize) { - /* Generate the data */ - SDL_memset(buffer, this->spec.silence, bufferSize); - SDL_mutexP(this->mixer_lock); - (*this->spec.callback)(this->spec.userdata, - buffer, bufferSize); - SDL_mutexV(this->mixer_lock); - bufferOffset = 0; - } - - len = bufferSize - bufferOffset; - if (len > remaining) - len = remaining; - SDL_memcpy(ptr, (char *)buffer + bufferOffset, len); - ptr = (char *)ptr + len; - remaining -= len; - bufferOffset += len; - } - - return 0; -} - -/* Dummy functions -- we don't use thread-based audio */ -void Core_WaitAudio(_THIS) -{ - return; -} - -void Core_PlayAudio(_THIS) -{ - return; -} - -Uint8 *Core_GetAudioBuf(_THIS) -{ - return(NULL); -} - -void Core_CloseAudio(_THIS) -{ - OSStatus result; - struct AudioUnitInputCallback callback; - - /* stop processing the audio unit */ - result = AudioOutputUnitStop (outputAudioUnit); - if (result != noErr) { - SDL_SetError("Core_CloseAudio: AudioOutputUnitStop"); - return; - } - - /* Remove the input callback */ - callback.inputProc = 0; - callback.inputProcRefCon = 0; - result = AudioUnitSetProperty (outputAudioUnit, - kAudioUnitProperty_SetInputCallback, - kAudioUnitScope_Input, - 0, - &callback, - sizeof(callback)); - if (result != noErr) { - SDL_SetError("Core_CloseAudio: AudioUnitSetProperty (kAudioUnitProperty_SetInputCallback)"); - return; - } - - result = CloseComponent(outputAudioUnit); - if (result != noErr) { - SDL_SetError("Core_CloseAudio: CloseComponent"); - return; - } - - SDL_free(buffer); -} - -#define CHECK_RESULT(msg) \ - if (result != noErr) { \ - SDL_SetError("Failed to start CoreAudio: " msg); \ - return -1; \ - } - - -int Core_OpenAudio(_THIS, SDL_AudioSpec *spec) -{ - OSStatus result = noErr; - Component comp; - ComponentDescription desc; - struct AudioUnitInputCallback callback; - AudioStreamBasicDescription requestedDesc; - - /* Setup a AudioStreamBasicDescription with the requested format */ - requestedDesc.mFormatID = kAudioFormatLinearPCM; - requestedDesc.mFormatFlags = kLinearPCMFormatFlagIsPacked; - requestedDesc.mChannelsPerFrame = spec->channels; - requestedDesc.mSampleRate = spec->freq; - - requestedDesc.mBitsPerChannel = spec->format & 0xFF; - if (spec->format & 0x8000) - requestedDesc.mFormatFlags |= kLinearPCMFormatFlagIsSignedInteger; - if (spec->format & 0x1000) - requestedDesc.mFormatFlags |= kLinearPCMFormatFlagIsBigEndian; - - 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) { - SDL_SetError ("Failed to start CoreAudio: FindNextComponent returned NULL"); - return -1; - } - - /* Open & initialize the default output audio unit */ - result = OpenAComponent (comp, &outputAudioUnit); - CHECK_RESULT("OpenAComponent") - - result = AudioUnitInitialize (outputAudioUnit); - CHECK_RESULT("AudioUnitInitialize") - - /* Set the input format of the audio unit. */ - result = AudioUnitSetProperty (outputAudioUnit, - kAudioUnitProperty_StreamFormat, - kAudioUnitScope_Input, - 0, - &requestedDesc, - sizeof (requestedDesc)); - CHECK_RESULT("AudioUnitSetProperty (kAudioUnitProperty_StreamFormat)") - - /* Set the audio callback */ - callback.inputProc = audioCallback; - callback.inputProcRefCon = this; - result = AudioUnitSetProperty (outputAudioUnit, - kAudioUnitProperty_SetInputCallback, - kAudioUnitScope_Input, - 0, - &callback, - sizeof(callback)); - CHECK_RESULT("AudioUnitSetProperty (kAudioUnitProperty_SetInputCallback)") - - /* Calculate the final parameters for this audio specification */ - SDL_CalculateAudioSpec(spec); - - /* Allocate a sample buffer */ - bufferOffset = bufferSize = this->spec.size; - buffer = SDL_malloc(bufferSize); - - /* Finally, start processing of the audio unit */ - result = AudioOutputUnitStart (outputAudioUnit); - CHECK_RESULT("AudioOutputUnitStart") - - - /* We're running! */ - return(1); -} -- cgit v1.1