Created SdlMixerImpl. Added setSampleRate method to Audio::MixerImpl. Updated and removed mixer code in OSystem_SDL for using SdlMixerImpl.

svn-id: r49602

2 files changed, 6 insertions, 1 deletions

diff --git a/sound/mixer.cpp b/sound/mixer.cpp
index 08a4ad921d..17ae723650 100644
--- a/sound/mixer.cpp
+++ b/sound/mixer.cpp
@@ -431,6 +431,9 @@ int MixerImpl::getVolumeForSoundType(SoundType type) const {
 	return _volumeForSoundType[type];
 }
 
+void MixerImpl::setSampleRate(uint sampleRate) {
+	_sampleRate = sampleRate;
+}
 
 #pragma mark -
 #pragma mark --- Channel implementations ---
diff --git a/sound/mixer_intern.h b/sound/mixer_intern.h
index 014be7abf2..c1b7df941f 100644
--- a/sound/mixer_intern.h
+++ b/sound/mixer_intern.h
@@ -60,7 +60,7 @@ private:
 	OSystem *_syst;
 	Common::Mutex _mutex;
 
-	const uint _sampleRate;
+	uint _sampleRate;
 	bool _mixerReady;
 	uint32 _handleSeed;
 
@@ -127,6 +127,8 @@ public:
 	 * their audio system has been completed.
 	 */
 	void setReady(bool ready);
+
+	void setSampleRate(uint sampleRate);
 };