From d46694c91c2bec4eb1e282c0c0101e6dab26e082 Mon Sep 17 00:00:00 2001
From: Brad Davis <bdavis@saintandreas.org>
Date: Wed, 3 Jul 2013 09:16:03 -0700
Subject: SDK 0.2.3

---
 Samples/CommonSrc/Platform/OSX_WavPlayer.cpp | 484 +++++++++++++--------------
 1 file changed, 242 insertions(+), 242 deletions(-)

(limited to 'Samples/CommonSrc/Platform/OSX_WavPlayer.cpp')

diff --git a/Samples/CommonSrc/Platform/OSX_WavPlayer.cpp b/Samples/CommonSrc/Platform/OSX_WavPlayer.cpp
index 6119888..a6cb937 100644
--- a/Samples/CommonSrc/Platform/OSX_WavPlayer.cpp
+++ b/Samples/CommonSrc/Platform/OSX_WavPlayer.cpp
@@ -1,242 +1,242 @@
-/************************************************************************************
-
-Filename    :   WavPlayer_OSX.cpp
-Content     :   An Apple OSX audio handler.
-Created     :   March 5, 2013
-Authors     :   Robotic Arm Software - Peter Hoff, Dan Goodman, Bryan Croteau
-
-Copyright   :   Copyright 2013 Oculus VR, Inc. All Rights reserved.
-
-Use of this software is subject to the terms of the Oculus LLC license
-agreement provided at the time of installation or download, or which
-otherwise accompanies this software in either electronic or hard copy form.
-
-************************************************************************************/
-
-#include "OSX_WavPlayer.h"
-
-namespace OVR { namespace Platform { namespace OSX {
-
-WavPlayer::WavPlayer(const char* fileName)
-{
-    FileName = fileName;
-}
-
-bool WavPlayer::isDataChunk(unsigned char* buffer, int index)
-{
-    unsigned char a = buffer[index];
-    unsigned char b = buffer[index + 1];
-    unsigned char c = buffer[index + 2];
-    unsigned char d = buffer[index + 3];
-    return (a == 'D' || a == 'd') && (b == 'A' || b == 'a') &&
-		(c == 'T' || c == 't') && (d == 'A' || d == 'a');
-}
-
-int WavPlayer::getWord(unsigned char* buffer, int index)
-{
-    unsigned char a = buffer[index];
-    unsigned char b = buffer[index + 1];
-    unsigned char c = buffer[index + 2];
-    unsigned char d = buffer[index + 3];
-    int result = 0;
-    result |= a;
-    result |= b << 8;
-    result |= c << 16;
-    result |= d << 24;
-    return result;
-}
-
-short WavPlayer::getHalf(unsigned char* buffer, int index)
-{
-    unsigned char a = buffer[index];
-    unsigned char b = buffer[index + 1];
-    short result = 0;
-    result |= a;
-    result |= b << 8;
-    return result;
-}
-
-void *WavPlayer::LoadPCM(const char *filename, unsigned long *len)
-{
-    FILE *file;
-    struct stat s;
-    void *pcm;
-
-    if(stat(filename, &s))
-    {
-        return NULL;
-    }
-    *len = s.st_size;
-    pcm = (void *) malloc(s.st_size);
-    if(!pcm)
-    {
-        return NULL;
-    }
-    file = fopen(filename, "rb");
-    if(!file)
-    {
-        free(pcm);
-        return NULL;
-    }
-    fread(pcm, s.st_size, 1, file);
-    fclose(file);
-    return pcm;
-}
-
-int WavPlayer::PlayBuffer(void *pcmbuffer, unsigned long len)
-{
-    AQCallbackStruct aqc;
-    UInt32 err, bufferSize;
-    int i;
-
-    aqc.DataFormat.mSampleRate = SampleRate;
-    aqc.DataFormat.mFormatID = kAudioFormatLinearPCM;
-    if(BitsPerSample == 16)
-    {
-        aqc.DataFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger
-			| kAudioFormatFlagIsPacked;
-    }
-    aqc.DataFormat.mBytesPerPacket = NumChannels * (BitsPerSample / 8);
-    aqc.DataFormat.mFramesPerPacket = 1;
-    aqc.DataFormat.mBytesPerFrame = NumChannels * (BitsPerSample / 8);
-    aqc.DataFormat.mChannelsPerFrame = NumChannels;
-    aqc.DataFormat.mBitsPerChannel = BitsPerSample;
-    aqc.FrameCount = SampleRate / 60;
-    aqc.SampleLen = (UInt32)(len);
-    aqc.PlayPtr = 0;
-    aqc.PCMBuffer = static_cast<unsigned char*>(pcmbuffer);
-
-    err = AudioQueueNewOutput(&aqc.DataFormat,
-                              aqBufferCallback,
-                              &aqc,
-                              NULL,
-                              kCFRunLoopCommonModes,
-                              0,
-                              &aqc.Queue);
-    if(err)
-    {
-        return err;
-    }
-
-    aqc.FrameCount = SampleRate / 60;
-    bufferSize = aqc.FrameCount * aqc.DataFormat.mBytesPerPacket;
-
-    for(i = 0; i < AUDIO_BUFFERS; i++)
-    {
-        err = AudioQueueAllocateBuffer(aqc.Queue, bufferSize,
-                                       &aqc.Buffers[i]);
-        if(err)
-        {
-            return err;
-        }
-        aqBufferCallback(&aqc, aqc.Queue, aqc.Buffers[i]);
-    }
-
-    err = AudioQueueStart(aqc.Queue, NULL);
-    if(err)
-    {
-        return err;
-    }
-
-    while(true)
-    {
-    }
-    sleep(1);
-    return 0;
-}
-
-void WavPlayer::aqBufferCallback(void *in, AudioQueueRef inQ, AudioQueueBufferRef outQB)
-{
-    AQCallbackStruct *aqc;
-    unsigned char *coreAudioBuffer;
-
-    aqc = (AQCallbackStruct *) in;
-    coreAudioBuffer = (unsigned char*) outQB->mAudioData;
-
-    printf("Sync: %u / %u\n", aqc->PlayPtr, aqc->SampleLen);
-
-    if(aqc->FrameCount > 0)
-    {
-        outQB->mAudioDataByteSize = aqc->DataFormat.mBytesPerFrame * aqc->FrameCount;
-        for(int i = 0; i < aqc->FrameCount * aqc->DataFormat.mBytesPerFrame; i++)
-        {
-            if(aqc->PlayPtr > aqc->SampleLen)
-            {
-                aqc->PlayPtr = 0;
-                i = 0;
-            }
-            coreAudioBuffer[i] = aqc->PCMBuffer[aqc->PlayPtr];
-            aqc->PlayPtr++;
-        }
-        AudioQueueEnqueueBuffer(inQ, outQB, 0, NULL);
-    }
-}
-
-int WavPlayer::PlayAudio()
-{
-    unsigned long len;
-    void *pcmbuffer;
-    int ret;
-
-    pcmbuffer = LoadPCM(FileName, &len);
-    if(!pcmbuffer)
-    {
-        fprintf(stderr, "%s: %s\n", FileName, strerror(errno));
-        exit(EXIT_FAILURE);
-    }
-
-    unsigned char* bytes = (unsigned char*)pcmbuffer;
-    int index = 0;
-
-    // 'RIFF'
-    getWord(bytes, index);
-    index += 4;
-    // int Length
-    getWord(bytes, index);
-    index += 4;
-    // 'WAVE'
-    getWord(bytes, index);
-    index += 4;
-    // 'fmt '
-    getWord(bytes, index);
-    index += 4;
-
-    // int Format Length
-    int fmtLen = getWord(bytes, index);
-    index += 4;
-    AudioFormat = getHalf(bytes, index);
-    index += 2;
-    NumChannels = getHalf(bytes, index);
-    index += 2;
-    SampleRate = getWord(bytes, index);
-    index += 4;
-    ByteRate = getWord(bytes, index);
-    index += 4;
-    BlockAlign = getHalf(bytes, index);
-    index += 2;
-    BitsPerSample = getHalf(bytes, index);
-    index += 2;
-    index += fmtLen - 16;
-    while(!isDataChunk(bytes, index))
-    {
-        // Any Chunk
-        getWord(bytes, index);
-        index += 4;
-        // Any Chunk Length
-        int anyChunkLen = getWord(bytes, index);
-        index += 4 + anyChunkLen;
-    }
-    // 'data'
-    getWord(bytes, index);
-    index += 4;
-    // int Data Length
-    unsigned long dataLen = getWord(bytes, index);
-    index += 4;
-    unsigned char* target = &bytes[index];
-
-    ret = PlayBuffer((void *)target, dataLen);
-    free(pcmbuffer);
-    return ret;
-}
-
-}}}
+/************************************************************************************
+
+Filename    :   WavPlayer_OSX.cpp
+Content     :   An Apple OSX audio handler.
+Created     :   March 5, 2013
+Authors     :   Robotic Arm Software - Peter Hoff, Dan Goodman, Bryan Croteau
+
+Copyright   :   Copyright 2013 Oculus VR, Inc. All Rights reserved.
+
+Use of this software is subject to the terms of the Oculus LLC license
+agreement provided at the time of installation or download, or which
+otherwise accompanies this software in either electronic or hard copy form.
+
+************************************************************************************/
+
+#include "OSX_WavPlayer.h"
+
+namespace OVR { namespace Platform { namespace OSX {
+
+WavPlayer::WavPlayer(const char* fileName)
+{
+    FileName = fileName;
+}
+
+bool WavPlayer::isDataChunk(unsigned char* buffer, int index)
+{
+    unsigned char a = buffer[index];
+    unsigned char b = buffer[index + 1];
+    unsigned char c = buffer[index + 2];
+    unsigned char d = buffer[index + 3];
+    return (a == 'D' || a == 'd') && (b == 'A' || b == 'a') &&
+		(c == 'T' || c == 't') && (d == 'A' || d == 'a');
+}
+
+int WavPlayer::getWord(unsigned char* buffer, int index)
+{
+    unsigned char a = buffer[index];
+    unsigned char b = buffer[index + 1];
+    unsigned char c = buffer[index + 2];
+    unsigned char d = buffer[index + 3];
+    int result = 0;
+    result |= a;
+    result |= b << 8;
+    result |= c << 16;
+    result |= d << 24;
+    return result;
+}
+
+short WavPlayer::getHalf(unsigned char* buffer, int index)
+{
+    unsigned char a = buffer[index];
+    unsigned char b = buffer[index + 1];
+    short result = 0;
+    result |= a;
+    result |= b << 8;
+    return result;
+}
+
+void *WavPlayer::LoadPCM(const char *filename, unsigned long *len)
+{
+    FILE *file;
+    struct stat s;
+    void *pcm;
+
+    if(stat(filename, &s))
+    {
+        return NULL;
+    }
+    *len = s.st_size;
+    pcm = (void *) malloc(s.st_size);
+    if(!pcm)
+    {
+        return NULL;
+    }
+    file = fopen(filename, "rb");
+    if(!file)
+    {
+        free(pcm);
+        return NULL;
+    }
+    fread(pcm, s.st_size, 1, file);
+    fclose(file);
+    return pcm;
+}
+
+int WavPlayer::PlayBuffer(void *pcmbuffer, unsigned long len)
+{
+    AQCallbackStruct aqc;
+    UInt32 err, bufferSize;
+    int i;
+
+    aqc.DataFormat.mSampleRate = SampleRate;
+    aqc.DataFormat.mFormatID = kAudioFormatLinearPCM;
+    if(BitsPerSample == 16)
+    {
+        aqc.DataFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger
+			| kAudioFormatFlagIsPacked;
+    }
+    aqc.DataFormat.mBytesPerPacket = NumChannels * (BitsPerSample / 8);
+    aqc.DataFormat.mFramesPerPacket = 1;
+    aqc.DataFormat.mBytesPerFrame = NumChannels * (BitsPerSample / 8);
+    aqc.DataFormat.mChannelsPerFrame = NumChannels;
+    aqc.DataFormat.mBitsPerChannel = BitsPerSample;
+    aqc.FrameCount = SampleRate / 60;
+    aqc.SampleLen = (UInt32)(len);
+    aqc.PlayPtr = 0;
+    aqc.PCMBuffer = static_cast<unsigned char*>(pcmbuffer);
+
+    err = AudioQueueNewOutput(&aqc.DataFormat,
+                              aqBufferCallback,
+                              &aqc,
+                              NULL,
+                              kCFRunLoopCommonModes,
+                              0,
+                              &aqc.Queue);
+    if(err)
+    {
+        return err;
+    }
+
+    aqc.FrameCount = SampleRate / 60;
+    bufferSize = aqc.FrameCount * aqc.DataFormat.mBytesPerPacket;
+
+    for(i = 0; i < AUDIO_BUFFERS; i++)
+    {
+        err = AudioQueueAllocateBuffer(aqc.Queue, bufferSize,
+                                       &aqc.Buffers[i]);
+        if(err)
+        {
+            return err;
+        }
+        aqBufferCallback(&aqc, aqc.Queue, aqc.Buffers[i]);
+    }
+
+    err = AudioQueueStart(aqc.Queue, NULL);
+    if(err)
+    {
+        return err;
+    }
+
+    while(true)
+    {
+    }
+    sleep(1);
+    return 0;
+}
+
+void WavPlayer::aqBufferCallback(void *in, AudioQueueRef inQ, AudioQueueBufferRef outQB)
+{
+    AQCallbackStruct *aqc;
+    unsigned char *coreAudioBuffer;
+
+    aqc = (AQCallbackStruct *) in;
+    coreAudioBuffer = (unsigned char*) outQB->mAudioData;
+
+    printf("Sync: %u / %u\n", aqc->PlayPtr, aqc->SampleLen);
+
+    if(aqc->FrameCount > 0)
+    {
+        outQB->mAudioDataByteSize = aqc->DataFormat.mBytesPerFrame * aqc->FrameCount;
+        for(int i = 0; i < aqc->FrameCount * aqc->DataFormat.mBytesPerFrame; i++)
+        {
+            if(aqc->PlayPtr > aqc->SampleLen)
+            {
+                aqc->PlayPtr = 0;
+                i = 0;
+            }
+            coreAudioBuffer[i] = aqc->PCMBuffer[aqc->PlayPtr];
+            aqc->PlayPtr++;
+        }
+        AudioQueueEnqueueBuffer(inQ, outQB, 0, NULL);
+    }
+}
+
+int WavPlayer::PlayAudio()
+{
+    unsigned long len;
+    void *pcmbuffer;
+    int ret;
+
+    pcmbuffer = LoadPCM(FileName, &len);
+    if(!pcmbuffer)
+    {
+        fprintf(stderr, "%s: %s\n", FileName, strerror(errno));
+        exit(EXIT_FAILURE);
+    }
+
+    unsigned char* bytes = (unsigned char*)pcmbuffer;
+    int index = 0;
+
+    // 'RIFF'
+    getWord(bytes, index);
+    index += 4;
+    // int Length
+    getWord(bytes, index);
+    index += 4;
+    // 'WAVE'
+    getWord(bytes, index);
+    index += 4;
+    // 'fmt '
+    getWord(bytes, index);
+    index += 4;
+
+    // int Format Length
+    int fmtLen = getWord(bytes, index);
+    index += 4;
+    AudioFormat = getHalf(bytes, index);
+    index += 2;
+    NumChannels = getHalf(bytes, index);
+    index += 2;
+    SampleRate = getWord(bytes, index);
+    index += 4;
+    ByteRate = getWord(bytes, index);
+    index += 4;
+    BlockAlign = getHalf(bytes, index);
+    index += 2;
+    BitsPerSample = getHalf(bytes, index);
+    index += 2;
+    index += fmtLen - 16;
+    while(!isDataChunk(bytes, index))
+    {
+        // Any Chunk
+        getWord(bytes, index);
+        index += 4;
+        // Any Chunk Length
+        int anyChunkLen = getWord(bytes, index);
+        index += 4 + anyChunkLen;
+    }
+    // 'data'
+    getWord(bytes, index);
+    index += 4;
+    // int Data Length
+    unsigned long dataLen = getWord(bytes, index);
+    index += 4;
+    unsigned char* target = &bytes[index];
+
+    ret = PlayBuffer((void *)target, dataLen);
+    free(pcmbuffer);
+    return ret;
+}
+
+}}}
-- 
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