Merge branch 'master' of https://github.com/kcat/zdoom

src/d_main.cpp

@@ -913,7 +913,6 @@ void D_Display ()
 			} while (diff < 1);
 			wipestart = nowtime;
 			done = screen->WipeDo (1);
-			S_UpdateMusic();		// OpenAL needs this to keep the music running, thanks to a complete lack of a sane streaming implementation using callbacks. :(
 			C_DrawConsole (hw2d);	// console and
 			M_Drawer ();			// menu are drawn even on top of wipes
 			screen->Update ();		// page flip or blit buffer
@@ -1012,7 +1011,6 @@ void D_DoomLoop ()
 			// Update display, next frame, with current state.
 			I_StartTic ();
 			D_Display ();
-			S_UpdateMusic();	// OpenAL needs this to keep the music running, thanks to a complete lack of a sane streaming implementation using callbacks. :(
 			if (wantToRestart)
 			{
 				wantToRestart = false;

src/s_sound.cpp

@@ -2660,17 +2660,6 @@ void S_StopMusic (bool force)
 	}
 }
 
-//==========================================================================
-//
-//
-//
-//==========================================================================
-
-void S_UpdateMusic()
-{
-	GSnd->UpdateMusic();
-}
-
 //==========================================================================
 //
 // CCMD playsound

src/s_sound.h

@@ -332,7 +332,6 @@ int S_GetMusic (char **name);
 
 // Stops the music for sure.
 void S_StopMusic (bool force);
-void S_UpdateMusic();
 
 // Stop and resume music, during game PAUSE.
 void S_PauseSound (bool notmusic, bool notsfx);

src/sound/except.h

@@ -23,19 +23,6 @@ inline int CheckException(DWORD code)
 	return EXCEPTION_CONTINUE_SEARCH;
 }
 
-
-#else
-
-#ifdef __try
-#undef __try
-#endif
-#define __try
-
-#ifdef __except
-#undef __except
-#endif
-#define __except(a) if (0)
-
 #endif
 
 #endif

src/sound/fmodsound.cpp

@@ -3192,8 +3192,8 @@ bool IsFModExPresent()
 {
 #ifdef NO_FMOD
 	return false;
-#elif !defined _WIN32
+#elif !defined _MSC_VER
-	return true;	// on non-Windows we cannot delay load the library so it has to be present.
+	return true;	// on non-MSVC we cannot delay load the library so it has to be present.
 #else
 	static bool cached_result;
 	static bool done = false;

src/sound/i_sound.h

@@ -148,7 +148,6 @@ public:
 
 	virtual void UpdateListener (SoundListener *) = 0;
 	virtual void UpdateSounds () = 0;
-	virtual void UpdateMusic() {}
 
 	virtual bool IsValid () = 0;
 	virtual void PrintStatus () = 0;

src/sound/mpg123_decoder.cpp

@@ -56,17 +56,18 @@ bool MPG123Decoder::open(FileReader *reader)
 {
     if(!inited)
     {
-		__try
+#ifdef _MSC_VER
-		{
+		__try {
+#endif
 			if(mpg123_init() != MPG123_OK)
 				return false;
 			inited = true;
-		}
+#ifdef _MSC_VER
-		__except (CheckException(GetExceptionCode()))
+        } __except (CheckException(GetExceptionCode())) {
-		{
 			// this means that the delay loaded decoder DLL was not found.
 			return false;
 		}
+#endif
     }
 
     Reader = reader;

src/sound/oalsound.cpp

@@ -221,7 +221,7 @@ class OpenALSoundStream : public SoundStream
     ALuint Buffers[BufferCount];
     ALuint Source;
 
-    bool Playing;
+    std::atomic<bool> Playing;
     bool Looping;
     ALfloat Volume;
 
@@ -287,12 +287,14 @@ public:
     OpenALSoundStream(OpenALSoundRenderer *renderer)
       : Renderer(renderer), Source(0), Playing(false), Looping(false), Volume(1.0f), Reader(NULL), Decoder(NULL)
     {
-        Renderer->Streams.Push(this);
         memset(Buffers, 0, sizeof(Buffers));
+        Renderer->AddStream(this);
     }
 
     virtual ~OpenALSoundStream()
     {
+        Renderer->RemoveStream(this);
+
         if(Source)
         {
             alSourceRewind(Source);
@@ -309,9 +311,6 @@ public:
         }
         getALError();
 
-        Renderer->Streams.Delete(Renderer->Streams.Find(this));
-        Renderer = NULL;
-
         delete Decoder;
         delete Reader;
     }
@@ -321,7 +320,7 @@ public:
     {
         SetVolume(vol);
 
-        if(Playing)
+        if(Playing.load())
             return true;
 
         /* Clear the buffer queue, then fill and queue each buffer */
@@ -342,21 +341,24 @@ public:
             return false;
 
         alSourcePlay(Source);
-        Playing = (getALError()==AL_NO_ERROR);
+        if(getALError() != AL_NO_ERROR)
+            return false;
 
-        return Playing;
+        Playing.store(true);
+        return true;
     }
 
     virtual void Stop()
     {
-        if(!Playing)
+        if(!Playing.load())
             return;
 
+        std::unique_lock<std::mutex> lock(Renderer->StreamLock);
         alSourceStop(Source);
         alSourcei(Source, AL_BUFFER, 0);
         getALError();
 
-        Playing = false;
+        Playing.store(false);
     }
 
     virtual void SetVolume(float vol)
@@ -382,21 +384,25 @@ public:
 
     virtual bool SetPosition(unsigned int ms_pos)
     {
+        std::unique_lock<std::mutex> lock(Renderer->StreamLock);
         if(!Decoder->seek(ms_pos))
             return false;
 
-        if(!Playing)
+        if(!Playing.load())
             return true;
-        // Stop the source so that all buffers become processed, then call
+        // Stop the source so that all buffers become processed, which will
-        // IsEnded() to refill and restart the source queue with the new
+        // allow the next update to restart the source queue with the new
         // position.
         alSourceStop(Source);
         getALError();
-        return !IsEnded();
+        lock.unlock();
+        Renderer->StreamWake.notify_all();
+        return true;
     }
 
     virtual unsigned int GetPosition()
     {
+        std::unique_lock<std::mutex> lock(Renderer->StreamLock);
         ALint offset, queued, state;
         alGetSourcei(Source, AL_SAMPLE_OFFSET, &offset);
         alGetSourcei(Source, AL_BUFFERS_QUEUED, &queued);
@@ -405,6 +411,8 @@ public:
             return 0;
 
         size_t pos = Decoder->getSampleOffset();
+        lock.unlock();
+
         if(state != AL_STOPPED)
         {
             size_t rem = queued*(Data.Size()/FrameSize) - offset;
@@ -416,54 +424,10 @@ public:
 
     virtual bool IsEnded()
     {
-        if(!Playing)
+        return !Playing.load();
-            return true;
-
-        ALint state, processed;
-        alGetSourcei(Source, AL_SOURCE_STATE, &state);
-        alGetSourcei(Source, AL_BUFFERS_PROCESSED, &processed);
-
-        Playing = (getALError()==AL_NO_ERROR);
-        if(!Playing)
-            return true;
-
-        // For each processed buffer in the queue...
-        while(processed > 0)
-        {
-            ALuint bufid;
-
-            // Unqueue the oldest buffer, fill it with more data, and queue it
-            // on the end
-            alSourceUnqueueBuffers(Source, 1, &bufid);
-            processed--;
-
-            if(Callback(this, &Data[0], Data.Size(), UserData))
-            {
-                alBufferData(bufid, Format, &Data[0], Data.Size(), SampleRate);
-                alSourceQueueBuffers(Source, 1, &bufid);
-            }
     }
 
-        // If the source is not playing or paused, and there are buffers queued,
+    virtual FString GetStats()
-        // then there was an underrun. Restart the source.
-        Playing = (getALError()==AL_NO_ERROR);
-        if(Playing && state != AL_PLAYING && state != AL_PAUSED)
-        {
-            ALint queued = 0;
-            alGetSourcei(Source, AL_BUFFERS_QUEUED, &queued);
-
-            Playing = (getALError() == AL_NO_ERROR) && (queued > 0);
-            if(Playing)
-            {
-                alSourcePlay(Source);
-                Playing = (getALError()==AL_NO_ERROR);
-            }
-        }
-
-        return !Playing;
-    }
-
-    FString GetStats()
     {
         FString stats;
         size_t pos, len;
@@ -474,6 +438,7 @@ public:
         ALint state;
         ALenum err;
 
+        std::unique_lock<std::mutex> lock(Renderer->StreamLock);
         alGetSourcef(Source, AL_GAIN, &volume);
         alGetSourcei(Source, AL_SAMPLE_OFFSET, &offset);
         alGetSourcei(Source, AL_BUFFERS_PROCESSED, &processed);
@@ -481,16 +446,19 @@ public:
         alGetSourcei(Source, AL_SOURCE_STATE, &state);
         if((err=alGetError()) != AL_NO_ERROR)
         {
+            lock.unlock();
             stats = "Error getting stats: ";
             stats += alGetString(err);
             return stats;
         }
 
+        pos = Decoder->getSampleOffset();
+        len = Decoder->getSampleLength();
+        lock.unlock();
+
         stats = (state == AL_INITIAL) ? "Buffering" : (state == AL_STOPPED) ? "Underrun" :
                 (state == AL_PLAYING || state == AL_PAUSED) ? "Ready" : "Unknown state";
 
-        pos = Decoder->getSampleOffset();
-        len = Decoder->getSampleLength();
         if(state == AL_STOPPED)
             offset = BufferCount * (Data.Size()/FrameSize);
         else
@@ -516,6 +484,57 @@ public:
         return stats;
     }
 
+    bool Process()
+    {
+        if(!Playing.load())
+            return false;
+
+        ALint state, processed;
+        alGetSourcei(Source, AL_SOURCE_STATE, &state);
+        alGetSourcei(Source, AL_BUFFERS_PROCESSED, &processed);
+        if(getALError() != AL_NO_ERROR)
+        {
+            Playing.store(false);
+            return false;
+        }
+
+        // For each processed buffer in the queue...
+        while(processed > 0)
+        {
+            ALuint bufid;
+
+            // Unqueue the oldest buffer, fill it with more data, and queue it
+            // on the end
+            alSourceUnqueueBuffers(Source, 1, &bufid);
+            processed--;
+
+            if(Callback(this, &Data[0], Data.Size(), UserData))
+            {
+                alBufferData(bufid, Format, &Data[0], Data.Size(), SampleRate);
+                alSourceQueueBuffers(Source, 1, &bufid);
+            }
+        }
+
+        // If the source is not playing or paused, and there are buffers queued,
+        // then there was an underrun. Restart the source.
+        bool ok = (getALError()==AL_NO_ERROR);
+        if(ok && state != AL_PLAYING && state != AL_PAUSED)
+        {
+            ALint queued = 0;
+            alGetSourcei(Source, AL_BUFFERS_QUEUED, &queued);
+
+            ok = (getALError() == AL_NO_ERROR) && (queued > 0);
+            if(ok)
+            {
+                alSourcePlay(Source);
+                ok = (getALError()==AL_NO_ERROR);
+            }
+        }
+
+        Playing.store(ok);
+        return ok;
+    }
+
     bool Init(SoundStreamCallback callback, int buffbytes, int flags, int samplerate, void *userdata)
     {
         if(!SetupSource())
@@ -707,7 +726,7 @@ static void LoadALCFunc(ALCdevice *device, const char *name, T *x)
 #define LOAD_FUNC(x)  (LoadALFunc(#x, &x))
 #define LOAD_DEV_FUNC(d, x)  (LoadALCFunc(d, #x, &x))
 OpenALSoundRenderer::OpenALSoundRenderer()
-    : Device(NULL), Context(NULL), SFXPaused(0), PrevEnvironment(NULL), EnvSlot(0)
+    : QuitThread(false), Device(NULL), Context(NULL), SFXPaused(0), PrevEnvironment(NULL), EnvSlot(0)
 {
     EnvFilters[0] = EnvFilters[1] = 0;
 
@@ -940,6 +959,15 @@ OpenALSoundRenderer::~OpenALSoundRenderer()
     if(!Device)
         return;
 
+    if(StreamThread.joinable())
+    {
+        std::unique_lock<std::mutex> lock(StreamLock);
+        QuitThread.store(true);
+        lock.unlock();
+        StreamWake.notify_all();
+        StreamThread.join();
+    }
+
     while(Streams.Size() > 0)
         delete Streams[0];
 
@@ -974,6 +1002,43 @@ OpenALSoundRenderer::~OpenALSoundRenderer()
     Device = NULL;
 }
 
+void OpenALSoundRenderer::BackgroundProc()
+{
+    std::unique_lock<std::mutex> lock(StreamLock);
+    while(!QuitThread.load())
+    {
+        if(Streams.Size() == 0)
+        {
+            // If there's nothing to play, wait indefinitely.
+            StreamWake.wait(lock);
+        }
+        else
+        {
+            // Else, process all active streams and sleep for 100ms
+            for(size_t i = 0;i < Streams.Size();i++)
+                Streams[i]->Process();
+            StreamWake.wait_for(lock, std::chrono::milliseconds(100));
+        }
+    }
+}
+
+void OpenALSoundRenderer::AddStream(OpenALSoundStream *stream)
+{
+    std::unique_lock<std::mutex> lock(StreamLock);
+    Streams.Push(stream);
+    lock.unlock();
+    // There's a stream to play, make sure the background thread is aware
+    StreamWake.notify_all();
+}
+
+void OpenALSoundRenderer::RemoveStream(OpenALSoundStream *stream)
+{
+    std::unique_lock<std::mutex> lock(StreamLock);
+    unsigned int idx = Streams.Find(stream);
+    if(idx < Streams.Size())
+        Streams.Delete(idx);
+}
+
 void OpenALSoundRenderer::SetSfxVolume(float volume)
 {
     SfxVolume = volume;
@@ -1252,6 +1317,8 @@ void OpenALSoundRenderer::UnloadSound(SoundHandle sfx)
 
 SoundStream *OpenALSoundRenderer::CreateStream(SoundStreamCallback callback, int buffbytes, int flags, int samplerate, void *userdata)
 {
+    if(StreamThread.get_id() == std::thread::id())
+        StreamThread = std::thread(std::mem_fn(&OpenALSoundRenderer::BackgroundProc), this);
 	OpenALSoundStream *stream = new OpenALSoundStream(this);
 	if (!stream->Init(callback, buffbytes, flags, samplerate, userdata))
 	{
@@ -1263,6 +1330,8 @@ SoundStream *OpenALSoundRenderer::CreateStream(SoundStreamCallback callback, int
 
 SoundStream *OpenALSoundRenderer::OpenStream(FileReader *reader, int flags)
 {
+    if(StreamThread.get_id() == std::thread::id())
+        StreamThread = std::thread(std::mem_fn(&OpenALSoundRenderer::BackgroundProc), this);
 	OpenALSoundStream *stream = new OpenALSoundStream(this);
 	if (!stream->Init(reader, !!(flags&SoundStream::Loop)))
 	{
@@ -1880,13 +1949,6 @@ void OpenALSoundRenderer::UpdateSounds()
     PurgeStoppedSources();
 }
 
-void OpenALSoundRenderer::UpdateMusic()
-{
-    // For some reason this isn't being called?
-    for(uint32 i = 0;i < Streams.Size();++i)
-        Streams[i]->IsEnded();
-}
-
 bool OpenALSoundRenderer::IsValid()
 {
     return Device != NULL;

src/sound/oalsound.h

@@ -1,6 +1,11 @@
 #ifndef OALSOUND_H
 #define OALSOUND_H
 
+#include <thread>
+#include <mutex>
+#include <atomic>
+#include <condition_variable>
+
 #include "i_sound.h"
 #include "s_sound.h"
 #include "menu/menu.h"
@@ -114,7 +119,6 @@ public:
 
 	virtual void UpdateListener(SoundListener *);
 	virtual void UpdateSounds();
-	virtual void UpdateMusic();
 
 	virtual void MarkStartTime(FISoundChannel*);
 	virtual float GetAudibility(FISoundChannel*);
@@ -184,10 +188,19 @@ private:
     void (ALC_APIENTRY*alcDevicePauseSOFT)(ALCdevice *device);
     void (ALC_APIENTRY*alcDeviceResumeSOFT)(ALCdevice *device);
 
+    void BackgroundProc();
+    void AddStream(OpenALSoundStream *stream);
+    void RemoveStream(OpenALSoundStream *stream);
+
 	void LoadReverb(const ReverbContainer *env);
 	void PurgeStoppedSources();
 	static FSoundChan *FindLowestChannel();
 
+    std::thread StreamThread;
+    std::mutex StreamLock;
+    std::condition_variable StreamWake;
+    std::atomic<bool> QuitThread;
+
 	ALCdevice *Device;
 	ALCcontext *Context;
 

src/sound/sndfile_decoder.cpp

@@ -54,8 +54,9 @@ SndFileDecoder::~SndFileDecoder()
 
 bool SndFileDecoder::open(FileReader *reader)
 {
-	__try
+#ifdef _MSC_VER
-	{
+	__try {
+#endif
 		SF_VIRTUAL_IO sfio = { file_get_filelen, file_seek, file_read, file_write, file_tell };
 
 		Reader = reader;
@@ -68,11 +69,11 @@ bool SndFileDecoder::open(FileReader *reader)
 			sf_close(SndFile);
 			SndFile = 0;
 		}
-	}
+#ifdef _MSC_VER
-	__except (CheckException(GetExceptionCode()))
+	} __except (CheckException(GetExceptionCode())) {
-	{
 		// this means that the delay loaded decoder DLL was not found.
 	}
+#endif
     return false;
 }