Added sound volume slider to HLE sound plugin, currently DSound only, unless someone wants to add it to OpenAL :p

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3262 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/AudioCommon/Src/AudioCommonConfig.cpp

@@ -1,32 +1,52 @@
-#include "AudioCommon.h"
-AudioCommonConfig ac_Config;
-
-// Load from given file
-void AudioCommonConfig::Load(IniFile &file) {
-	file.Get("Config", "EnableDTKMusic", &m_EnableDTKMusic, true);
-	file.Get("Config", "EnableThrottle", &m_EnableThrottle, true);
-#ifdef _WIN32
-	file.Get("Config", "Backend", &sBackend, "DSound");
-#elif defined(__APPLE__)
-	std::string temp;
-	file.Get("Config", "Backend", &temp, "AOSound");
-	strncpy(sBackend, temp.c_str(), 128);
-#else
-	file.Get("Config", "Backend", &sBackend, "AOSound");
-#endif
-}
-
-// Set the values for the file
-void AudioCommonConfig::Set(IniFile &file) {
-	file.Set("Config", "EnableDTKMusic", m_EnableDTKMusic);
-	file.Set("Config", "EnableThrottle", m_EnableThrottle);
-	file.Set("Config", "Backend", sBackend);
-}
-
-// Update according to the values (stream/mixer)
-void AudioCommonConfig::Update() {
-	if (soundStream) {
-		soundStream->GetMixer()->SetThrottle(m_EnableThrottle);
-		soundStream->GetMixer()->SetDTKMusic(m_EnableDTKMusic);
-	}
-}
+// Copyright (C) 2003-2009 Dolphin Project.
+
+// This program 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, version 2.0.
+
+// This program 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 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+
+#include "AudioCommon.h"
+AudioCommonConfig ac_Config;
+
+// Load from given file
+void AudioCommonConfig::Load(IniFile &file) {
+	file.Get("Config", "EnableDTKMusic", &m_EnableDTKMusic, true);
+	file.Get("Config", "EnableThrottle", &m_EnableThrottle, true);
+	file.Get("Config", "Volume", &m_Volume, 0);
+#ifdef _WIN32
+	file.Get("Config", "Backend", &sBackend, "DSound");
+#elif defined(__APPLE__)
+	std::string temp;
+	file.Get("Config", "Backend", &temp, "AOSound");
+	strncpy(sBackend, temp.c_str(), 128);
+#else
+	file.Get("Config", "Backend", &sBackend, "AOSound");
+#endif
+}
+
+// Set the values for the file
+void AudioCommonConfig::Set(IniFile &file) {
+	file.Set("Config", "EnableDTKMusic", m_EnableDTKMusic);
+	file.Set("Config", "EnableThrottle", m_EnableThrottle);
+	file.Set("Config", "Backend", sBackend);
+	file.Set("Config", "Volume", m_Volume);
+}
+
+// Update according to the values (stream/mixer)
+void AudioCommonConfig::Update() {
+	if (soundStream) {
+		soundStream->GetMixer()->SetThrottle(m_EnableThrottle);
+		soundStream->GetMixer()->SetDTKMusic(m_EnableDTKMusic);
+		soundStream->SetVolume(m_Volume);
+	}
+}

Source/Core/AudioCommon/Src/AudioCommonConfig.h

@@ -1,32 +1,50 @@
-#ifndef _AUDIO_COMMON_CONFIG_H_
-#define _AUDIO_COMMON_CONFIG_H_
-
-#include <string>
-#include "IniFile.h"
-
-// Backend Types
-#define BACKEND_DIRECTSOUND "DSound"
-#define BACKEND_AOSOUND     "AOSound"
-#define BACKEND_OPENAL      "OpenAL"
-#define BACKEND_NULL        "NullSound"
-struct AudioCommonConfig 
-{
-	bool m_EnableDTKMusic;
-    bool m_EnableThrottle;
-#ifdef __APPLE__
-	char sBackend[128];
-#else
-	std::string sBackend;
-#endif
-	
-	// Load from given file
-	void Load(IniFile &file);
-	
-	// Set the values for the file
-	void Set(IniFile &file);
-
-	// Update according to the values (stream/mixer)
-	void Update();
-};
-
-#endif //AUDIO_COMMON_CONFIG
+// Copyright (C) 2003-2009 Dolphin Project.
+
+// This program 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, version 2.0.
+
+// This program 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 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+
+#ifndef _AUDIO_COMMON_CONFIG_H_
+#define _AUDIO_COMMON_CONFIG_H_
+
+#include <string>
+#include "IniFile.h"
+
+// Backend Types
+#define BACKEND_DIRECTSOUND "DSound"
+#define BACKEND_AOSOUND     "AOSound"
+#define BACKEND_OPENAL      "OpenAL"
+#define BACKEND_NULL        "NullSound"
+struct AudioCommonConfig 
+{
+	bool m_EnableDTKMusic;
+    bool m_EnableThrottle;
+	int m_Volume;
+#ifdef __APPLE__
+	char sBackend[128];
+#else
+	std::string sBackend;
+#endif
+	
+	// Load from given file
+	void Load(IniFile &file);
+	
+	// Set the values for the file
+	void Set(IniFile &file);
+
+	// Update according to the values (stream/mixer)
+	void Update();
+};
+
+#endif //AUDIO_COMMON_CONFIG

Source/Core/AudioCommon/Src/DSoundStream.cpp

@@ -16,6 +16,7 @@
 // http://code.google.com/p/dolphin-emu/
 
 #include <windows.h>
+#include <cmath>
 #include <dxerr.h>
 #include "DSoundStream.h"
 
@@ -40,7 +41,7 @@ bool DSound::CreateBuffer()
 
 	// Fill out DSound buffer description.
 	dsbdesc.dwSize  = sizeof(DSBUFFERDESC);
-	dsbdesc.dwFlags = DSBCAPS_GETCURRENTPOSITION2 | DSBCAPS_STICKYFOCUS;
+	dsbdesc.dwFlags = DSBCAPS_GETCURRENTPOSITION2 | DSBCAPS_STICKYFOCUS | DSBCAPS_CTRLVOLUME;
 	dsbdesc.dwBufferBytes = bufferSize = BUFSIZE;
 	dsbdesc.lpwfxFormat = (WAVEFORMATEX *)&pcmwf;
 	dsbdesc.guid3DAlgorithm = DS3DALG_DEFAULT;
@@ -49,6 +50,7 @@ bool DSound::CreateBuffer()
 	if (SUCCEEDED(res))
 	{
 		dsBuffer->SetCurrentPosition(0);
+		dsBuffer->SetVolume(m_volume);
 		return true;
 	}
 	else
@@ -152,6 +154,17 @@ bool DSound::Start()
 	return true;
 }
 
+void DSound::SetVolume(int volume)
+{
+	// This is in "dBA attenuation" from 0 to -10000, logarithmic
+	m_volume = (int)floor(log10((float)volume) * 5000.0f) - 10000;
+
+	soundCriticalSection.Enter();
+	if (ds != NULL)
+		dsBuffer->SetVolume(m_volume);
+	soundCriticalSection.Leave();
+}
+
 void DSound::Update()
 {
 	soundSyncEvent.Set();

Source/Core/AudioCommon/Src/DSoundStream.h

@@ -42,6 +42,7 @@ class DSound : public SoundStream
     
     int bufferSize;     //i bytes
     int totalRenderedBytes;
+	int m_volume;
     
     // playback position
     int currentPos;
@@ -73,6 +74,7 @@ public:
  
 	virtual bool Start();
     virtual void SoundLoop();
+	virtual void SetVolume(int volume);
     virtual void Stop();
     static bool isValid() { return true; }
     virtual bool usesMixer() const { return true; }

Source/Core/AudioCommon/Src/SoundStream.h

@@ -40,6 +40,7 @@ public:
 	static  bool isValid() { return false; }  
 	virtual CMixer *GetMixer() const { return m_mixer; }
 	virtual bool Start() { return false; }
+	virtual void SetVolume(int) {}
 	virtual void SoundLoop() {}
 	virtual void Stop() {}
 	virtual void Update() {}