mirror of https://github.com/ioquake/ioq3.git
326 lines
11 KiB
Objective-C
Executable File
326 lines
11 KiB
Objective-C
Executable File
/*
|
|
===========================================================================
|
|
Copyright (C) 1999-2005 Id Software, Inc.
|
|
|
|
This file is part of Quake III Arena source code.
|
|
|
|
Quake III Arena source code is free software; you can redistribute it
|
|
and/or modify it under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation; either version 2 of the License,
|
|
or (at your option) any later version.
|
|
|
|
Quake III Arena source code 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Foobar; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
===========================================================================
|
|
*/
|
|
|
|
// mac_snddma.c
|
|
// all other sound mixing is portable
|
|
|
|
#include "../client/snd_local.h"
|
|
|
|
#include <CoreServices/CoreServices.h>
|
|
#include <CoreAudio/AudioHardware.h>
|
|
#include <QuickTime/QuickTime.h>
|
|
|
|
// For 'ri'
|
|
#include "../renderer/tr_local.h"
|
|
|
|
#import <Foundation/NSData.h>
|
|
#import <Foundation/NSString.h>
|
|
|
|
static unsigned int submissionChunk;
|
|
static unsigned int maxMixedSamples;
|
|
static short *s_mixedSamples;
|
|
static int s_chunkCount; // number of chunks submitted
|
|
static qboolean s_isRunning;
|
|
|
|
static AudioDeviceID outputDeviceID;
|
|
static AudioStreamBasicDescription outputStreamBasicDescription;
|
|
|
|
/*
|
|
===============
|
|
audioDeviceIOProc
|
|
===============
|
|
*/
|
|
|
|
OSStatus audioDeviceIOProc(AudioDeviceID inDevice,
|
|
const AudioTimeStamp *inNow,
|
|
const AudioBufferList *inInputData,
|
|
const AudioTimeStamp *inInputTime,
|
|
AudioBufferList *outOutputData,
|
|
const AudioTimeStamp *inOutputTime,
|
|
void *inClientData)
|
|
{
|
|
int offset;
|
|
short *samples;
|
|
unsigned int sampleIndex;
|
|
float *outBuffer;
|
|
float scale, temp;
|
|
|
|
offset = ( s_chunkCount * submissionChunk ) % maxMixedSamples;
|
|
samples = s_mixedSamples + offset;
|
|
|
|
assert(outOutputData->mNumberBuffers == 1);
|
|
assert(outOutputData->mBuffers[0].mNumberChannels == 2);
|
|
//assert(outOutputData->mBuffers[0].mDataByteSize == (dma.submission_chunk * sizeof(float)));
|
|
|
|
outBuffer = (float *)outOutputData->mBuffers[0].mData;
|
|
|
|
// If we have run out of samples, return silence
|
|
if (s_chunkCount * submissionChunk > dma.channels * s_paintedtime) {
|
|
memset(outBuffer, 0, sizeof(*outBuffer) * dma.submission_chunk);
|
|
} else {
|
|
scale = (1.0f / SHRT_MAX);
|
|
if (outputStreamBasicDescription.mSampleRate == 44100 && dma.speed == 22050) {
|
|
for (sampleIndex = 0; sampleIndex < dma.submission_chunk; sampleIndex+=2) {
|
|
// Convert the samples from shorts to floats. Scale the floats to be [-1..1].
|
|
temp = samples[sampleIndex + 0] * scale;
|
|
outBuffer[(sampleIndex<<1)+0] = temp;
|
|
outBuffer[(sampleIndex<<1)+2] = temp;
|
|
|
|
temp = samples[sampleIndex + 1] * scale;
|
|
outBuffer[(sampleIndex<<1)+1] = temp;
|
|
outBuffer[(sampleIndex<<1)+3] = temp;
|
|
}
|
|
} else if (outputStreamBasicDescription.mSampleRate == 44100 && dma.speed == 11025) {
|
|
for (sampleIndex = 0; sampleIndex < dma.submission_chunk; sampleIndex+=4) {
|
|
// Convert the samples from shorts to floats. Scale the floats to be [-1..1].
|
|
temp = samples[sampleIndex + 0] * scale;
|
|
outBuffer[(sampleIndex<<1)+0] = temp;
|
|
outBuffer[(sampleIndex<<1)+2] = temp;
|
|
outBuffer[(sampleIndex<<1)+4] = temp;
|
|
outBuffer[(sampleIndex<<1)+6] = temp;
|
|
|
|
temp = samples[sampleIndex + 1] * scale;
|
|
outBuffer[(sampleIndex<<1)+1] = temp;
|
|
outBuffer[(sampleIndex<<1)+3] = temp;
|
|
outBuffer[(sampleIndex<<1)+5] = temp;
|
|
outBuffer[(sampleIndex<<1)+7] = temp;
|
|
}
|
|
} else {
|
|
for (sampleIndex = 0; sampleIndex < dma.submission_chunk; sampleIndex++) {
|
|
// Convert the samples from shorts to floats. Scale the floats to be [-1..1].
|
|
outBuffer[sampleIndex] = samples[sampleIndex] * scale;
|
|
}
|
|
}
|
|
}
|
|
|
|
s_chunkCount++; // this is the next buffer we will submit
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
===============
|
|
S_MakeTestPattern
|
|
===============
|
|
*/
|
|
void S_MakeTestPattern( void ) {
|
|
int i;
|
|
float v;
|
|
int sample;
|
|
|
|
for ( i = 0 ; i < dma.samples / 2 ; i ++ ) {
|
|
v = sin( M_PI * 2 * i / 64 );
|
|
sample = v * 0x4000;
|
|
((short *)dma.buffer)[i*2] = sample;
|
|
((short *)dma.buffer)[i*2+1] = sample;
|
|
}
|
|
}
|
|
|
|
/*
|
|
===============
|
|
SNDDMA_Init
|
|
===============
|
|
*/
|
|
qboolean SNDDMA_Init(void)
|
|
{
|
|
cvar_t *bufferSize;
|
|
cvar_t *chunkSize;
|
|
OSStatus status;
|
|
UInt32 propertySize, bufferByteCount;
|
|
|
|
if (s_isRunning)
|
|
return qtrue;
|
|
|
|
chunkSize = ri.Cvar_Get( "s_chunksize", "2048", CVAR_ARCHIVE );
|
|
bufferSize = ri.Cvar_Get( "s_buffersize", "16384", CVAR_ARCHIVE );
|
|
Com_Printf(" Chunk size = %d\n", chunkSize->integer);
|
|
Com_Printf("Buffer size = %d\n", bufferSize->integer);
|
|
|
|
if (!chunkSize->integer)
|
|
ri.Error(ERR_FATAL, "s_chunksize must be non-zero\n");
|
|
if (!bufferSize->integer)
|
|
ri.Error(ERR_FATAL, "s_buffersize must be non-zero\n");
|
|
if (chunkSize->integer >= bufferSize->integer)
|
|
ri.Error(ERR_FATAL, "s_chunksize must be less than s_buffersize\n");
|
|
if (bufferSize->integer % chunkSize->integer)
|
|
ri.Error(ERR_FATAL, "s_buffersize must be an even multiple of s_chunksize\n");
|
|
|
|
// Get the output device
|
|
propertySize = sizeof(outputDeviceID);
|
|
status = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &propertySize, &outputDeviceID);
|
|
if (status) {
|
|
Com_Printf("AudioHardwareGetProperty returned %d\n", status);
|
|
return qfalse;
|
|
}
|
|
|
|
if (outputDeviceID == kAudioDeviceUnknown) {
|
|
Com_Printf("AudioHardwareGetProperty: outputDeviceID is kAudioDeviceUnknown\n");
|
|
return qfalse;
|
|
}
|
|
|
|
// Configure the output device
|
|
propertySize = sizeof(bufferByteCount);
|
|
bufferByteCount = chunkSize->integer * sizeof(float);
|
|
status = AudioDeviceSetProperty(outputDeviceID, NULL, 0, NO, kAudioDevicePropertyBufferSize, propertySize, &bufferByteCount);
|
|
if (status) {
|
|
Com_Printf("AudioDeviceSetProperty: returned %d when setting kAudioDevicePropertyBufferSize to %d\n", status, chunkSize->integer);
|
|
return qfalse;
|
|
}
|
|
|
|
propertySize = sizeof(bufferByteCount);
|
|
status = AudioDeviceGetProperty(outputDeviceID, 0, NO, kAudioDevicePropertyBufferSize, &propertySize, &bufferByteCount);
|
|
if (status) {
|
|
Com_Printf("AudioDeviceGetProperty: returned %d when setting kAudioDevicePropertyBufferSize\n", status);
|
|
return qfalse;
|
|
}
|
|
|
|
// Print out the device status
|
|
propertySize = sizeof(outputStreamBasicDescription);
|
|
status = AudioDeviceGetProperty(outputDeviceID, 0, NO, kAudioDevicePropertyStreamFormat, &propertySize, &outputStreamBasicDescription);
|
|
if (status) {
|
|
Com_Printf("AudioDeviceGetProperty: returned %d when getting kAudioDevicePropertyStreamFormat\n", status);
|
|
return qfalse;
|
|
}
|
|
|
|
Com_Printf("Hardware format:\n");
|
|
Com_Printf(" %f mSampleRate\n", outputStreamBasicDescription.mSampleRate);
|
|
Com_Printf(" %c%c%c%c mFormatID\n",
|
|
(outputStreamBasicDescription.mFormatID & 0xff000000) >> 24,
|
|
(outputStreamBasicDescription.mFormatID & 0x00ff0000) >> 16,
|
|
(outputStreamBasicDescription.mFormatID & 0x0000ff00) >> 8,
|
|
(outputStreamBasicDescription.mFormatID & 0x000000ff) >> 0);
|
|
Com_Printf(" %5d mBytesPerPacket\n", outputStreamBasicDescription.mBytesPerPacket);
|
|
Com_Printf(" %5d mFramesPerPacket\n", outputStreamBasicDescription.mFramesPerPacket);
|
|
Com_Printf(" %5d mBytesPerFrame\n", outputStreamBasicDescription.mBytesPerFrame);
|
|
Com_Printf(" %5d mChannelsPerFrame\n", outputStreamBasicDescription.mChannelsPerFrame);
|
|
Com_Printf(" %5d mBitsPerChannel\n", outputStreamBasicDescription.mBitsPerChannel);
|
|
|
|
if(outputStreamBasicDescription.mFormatID != kAudioFormatLinearPCM) {
|
|
Com_Printf("Default Audio Device doesn't support Linear PCM!");
|
|
return qfalse;
|
|
}
|
|
|
|
// Start sound running
|
|
status = AudioDeviceAddIOProc(outputDeviceID, audioDeviceIOProc, NULL);
|
|
if (status) {
|
|
Com_Printf("AudioDeviceAddIOProc: returned %d\n", status);
|
|
return qfalse;
|
|
}
|
|
|
|
submissionChunk = chunkSize->integer;
|
|
if (outputStreamBasicDescription.mSampleRate == 44100) {
|
|
submissionChunk = chunkSize->integer/2;
|
|
}
|
|
maxMixedSamples = bufferSize->integer;
|
|
s_mixedSamples = calloc(1, sizeof(*s_mixedSamples) * maxMixedSamples);
|
|
Com_Printf("Chunk Count = %d\n", (maxMixedSamples / submissionChunk));
|
|
|
|
// Tell the main app what we expect from it
|
|
dma.samples = maxMixedSamples;
|
|
dma.submission_chunk = submissionChunk;
|
|
dma.samplebits = 16;
|
|
dma.buffer = (byte *)s_mixedSamples;
|
|
dma.channels = outputStreamBasicDescription.mChannelsPerFrame;
|
|
dma.speed = 22050; //(unsigned long)outputStreamBasicDescription.mSampleRate;
|
|
|
|
// We haven't enqueued anything yet
|
|
s_chunkCount = 0;
|
|
|
|
status = AudioDeviceStart(outputDeviceID, audioDeviceIOProc);
|
|
if (status) {
|
|
Com_Printf("AudioDeviceStart: returned %d\n", status);
|
|
return qfalse;
|
|
}
|
|
|
|
s_isRunning = qtrue;
|
|
|
|
return qtrue;
|
|
}
|
|
|
|
/*
|
|
===============
|
|
SNDDMA_GetBufferDuration
|
|
===============
|
|
*/
|
|
float SNDDMA_GetBufferDuration(void)
|
|
{
|
|
return (float)dma.samples / (float)(dma.channels * dma.speed);
|
|
}
|
|
|
|
/*
|
|
===============
|
|
SNDDMA_GetDMAPos
|
|
===============
|
|
*/
|
|
int SNDDMA_GetDMAPos(void)
|
|
{
|
|
return s_chunkCount * dma.submission_chunk;
|
|
}
|
|
|
|
/*
|
|
===============
|
|
SNDDMA_Shutdown
|
|
===============
|
|
*/
|
|
void SNDDMA_Shutdown(void)
|
|
{
|
|
OSStatus status;
|
|
|
|
if (!s_isRunning)
|
|
return;
|
|
|
|
status = AudioDeviceStop(outputDeviceID, audioDeviceIOProc);
|
|
if (status) {
|
|
Com_Printf("AudioDeviceStop: returned %d\n", status);
|
|
return;
|
|
}
|
|
|
|
s_isRunning = qfalse;
|
|
|
|
status = AudioDeviceRemoveIOProc(outputDeviceID, audioDeviceIOProc);
|
|
if (status) {
|
|
Com_Printf("AudioDeviceRemoveIOProc: returned %d\n", status);
|
|
return;
|
|
}
|
|
|
|
free(s_mixedSamples);
|
|
s_mixedSamples = NULL;
|
|
dma.samples = NULL;
|
|
}
|
|
|
|
/*
|
|
===============
|
|
SNDDMA_BeginPainting
|
|
===============
|
|
*/
|
|
void SNDDMA_BeginPainting(void) {
|
|
}
|
|
|
|
/*
|
|
===============
|
|
SNDDMA_Submit
|
|
===============
|
|
*/
|
|
void SNDDMA_Submit(void) {
|
|
}
|
|
|