Initial commit

Torque/SDK/engine/audio/oggMixedStreamSource.cc

@@ -0,0 +1,133 @@
+//--------------------------------------
+//
+// This class is basically a buffer that is filled from
+// the ogg stream the theoraplayer has open
+//
+//--------------------------------------
+
+#include "audio/oggMixedStreamSource.h"
+
+OggMixedStreamSource::OggMixedStreamSource(const char *filename)
+{
+   bIsValid = false;
+   bBuffersAllocated = false;
+   for(int i = 0; i < BUFFERCNT; i++)
+   {
+      mBufferList[i] = 0;
+      m_fBufferInUse[i] = false;
+   }
+
+
+   mHandle = NULL_AUDIOHANDLE;
+   mSource = NULL;
+
+   mFilename = filename;
+   mPosition = Point3F(0.f,0.f,0.f);
+
+   dMemset(&mDescription, 0, sizeof(Audio::Description));
+   mEnvironment = 0;
+   mPosition.set(0.f,0.f,0.f);
+   mDirection.set(0.f,1.f,0.f);
+   mPitch = 1.f;
+   mScore = 0.f;
+   mCullTime = 0;
+
+   bFinishedPlaying = false;
+   bIsValid = false;
+   bBuffersAllocated = false;
+}
+
+OggMixedStreamSource::~OggMixedStreamSource()
+{
+   if(bIsValid)
+      freeStream();
+}
+
+bool OggMixedStreamSource::initStream()
+{
+   alSourceStop(mSource);
+   alSourcei(mSource, AL_BUFFER, 0);
+
+   // Clear Error Code
+   alGetError();
+
+   alGenBuffers(BUFFERCNT, mBufferList);
+   if (alGetError() != AL_NO_ERROR)
+      return false;
+
+   bBuffersAllocated = true;
+
+   alSourcei(mSource, AL_LOOPING, AL_FALSE);
+
+   bIsValid = true;
+
+   return true;
+}
+
+bool OggMixedStreamSource::updateBuffers()
+{
+   // buffers are updated from theora player
+   return true;
+}
+
+void OggMixedStreamSource::freeStream()
+{
+   // free the al buffers
+   if(bBuffersAllocated)
+   {
+      alSourceStop(mSource);
+      alSourcei(mSource, AL_BUFFER, 0);
+      alDeleteBuffers(BUFFERCNT, mBufferList);
+
+      alGetError();
+
+      for(int i = 0; i < BUFFERCNT; i++)
+      {
+         mBufferList[i] = 0;
+         m_fBufferInUse[i] = false;
+      }
+
+      bBuffersAllocated = false;
+   }
+}
+
+ALuint OggMixedStreamSource::GetAvailableBuffer()
+{
+   if(!bBuffersAllocated)
+      return 0;
+
+   // test for unused buffers
+   for(int i = 0; i < BUFFERCNT; i++)
+   {
+      if(!m_fBufferInUse[i])
+      {
+         m_fBufferInUse[i] = true;
+         return mBufferList[i];
+      }
+   }
+
+   alGetError();
+
+   // test for processed buffers
+   ALint         processed;
+   alGetSourcei(mSource, AL_BUFFERS_PROCESSED, &processed);
+
+   if(!processed)
+      return 0; // no available buffers
+
+   ALuint BufferID;
+   alSourceUnqueueBuffers(mSource, 1, &BufferID);
+
+   if (alGetError() != AL_NO_ERROR)
+      return 0; // something went wrong..
+
+   return BufferID;
+}
+
+bool OggMixedStreamSource::QueueBuffer(ALuint BufferID)
+{
+   alSourceQueueBuffers(mSource, 1, &BufferID);
+   if (alGetError() != AL_NO_ERROR)
+      return false;
+   return true;
+}