Modularization.

svn-id: r24453

backends/platform/dc/dc.h

@@ -38,9 +38,23 @@ class Interactive
 
 class OSystem_Dreamcast : public OSystem {
 
+ private:
+
+  // Set function that generates samples
+  typedef void (*SoundProc)(void *param, byte *buf, int len);
+  bool setSoundCallback(SoundProc proc, void *param);
+  void clearSoundCallback();
+
+  // Add a callback timer
+  typedef int (*TimerProc)(int interval);
+  void setTimerCallback(TimerProc callback, int timer);
+
+  Common::SaveFileManager *createSavefileManager();
+
  public:
   OSystem_Dreamcast();
 
+  virtual void initBackend();
 
   // Determine whether the backend supports the specified feature.
   bool hasFeature(Feature f);
@@ -114,10 +128,6 @@ class OSystem_Dreamcast : public OSystem {
   // Returns true if an event was retrieved.
   bool pollEvent(Event &event);
 
-  // Set function that generates samples
-  bool setSoundCallback(SoundProc proc, void *param);
-  void clearSoundCallback();
-
   // Determine the output sample rate. Audio data provided by the sound
   // callback will be played using this rate.
   int getOutputSampleRate() const;
@@ -167,9 +177,6 @@ class OSystem_Dreamcast : public OSystem {
     b = ((color<<4)&0xf0)|(color&0x0f);
   }
 
-  // Add a callback timer
-  void setTimerCallback(TimerProc callback, int timer);
-
   // Mutex handling
   MutexRef createMutex();
   void lockMutex(MutexRef mutex);
@@ -180,9 +187,10 @@ class OSystem_Dreamcast : public OSystem {
   // given value.
   void setWindowCaption(const char *caption);
 
-  // Savefile handling
-  Common::SaveFileManager *getSavefileManager();
-
+  // Modulatized backend
+  Common::SaveFileManager *getSavefileManager() { return _savefile; }
+  Audio::Mixer *getMixer() { return _mixer; }
+  Common::TimerManager *getTimerManager() { return _timer; }
 
   // Extra SoftKbd support
   void mouseToSoftKbd(int x, int y, int &rx, int &ry) const;
@@ -190,6 +198,9 @@ class OSystem_Dreamcast : public OSystem {
 
  private:
 
+  Common::SaveFileManager *_savefile;
+  Audio::Mixer *_mixer;
+  Common::TimerManager *_timer;
   SoftKeyboard _softkbd;
 
   int _ms_cur_x, _ms_cur_y, _ms_cur_w, _ms_cur_h, _ms_old_x, _ms_old_y;

backends/platform/dc/dcmain.cpp

@@ -32,6 +32,8 @@
 #include <common/config-manager.h>
 
 #include "backends/plugins/dc/dc-provider.h"
+#include "backends/timer/default/default-timer.h"
+#include "sound/mixer.h"
 
 
 Icon icon;
@@ -49,6 +51,21 @@ OSystem_Dreamcast::OSystem_Dreamcast()
   memset(ovl_tx, 0, sizeof(ovl_tx));
 }
 
+static int timer_handler(int t) {
+  DefaultTimerManager *tm = (DefaultTimerManager *)g_system->getTimerManager();
+  tm->handler();
+  return t;
+}
+
+void OSystem_Dreamcast::initBackend()
+{
+  _savefile = createSavefileManager();
+  _mixer = new Audio::Mixer();
+  _timer = new DefaultTimerManager();
+  setSoundCallback(Audio::Mixer::mixCallback, _mixer);
+  setTimerCallback(&timer_handler, 10);
+}
+
 
 /* CD Audio */
 static bool find_track(int track, int &first_sec, int &last_sec)

backends/platform/dc/vmsave.cpp

@@ -401,7 +401,7 @@ void VMSaveManager::listSavefiles(const char *prefix, bool *marks, int num)
     tryList(prefix, marks, num, i);
 }
 
-Common::SaveFileManager *OSystem_Dreamcast::getSavefileManager()
+Common::SaveFileManager *OSystem_Dreamcast::createSavefileManager()
 {
   return new VMSaveManager();
 }