Harmonized with new OSystem API.

svn-id: r13245

5 files changed, 76 insertions, 38 deletions

diff --git a/backends/dc/audio.cpp b/backends/dc/audio.cpp
index 2838e0779d..bf475f1cce 100644
--- a/backends/dc/audio.cpp
+++ b/backends/dc/audio.cpp
@@ -36,13 +36,8 @@ void initSound()
 
 bool OSystem_Dreamcast::setSoundCallback(SoundProc proc, void *param)
 {
-#if SAMPLE_MODE == 0
-  assert(format == SOUND_16BIT);
-#elif SAMPLE_MODE == 1
-  assert(format == SOUND_8BIT);
-#else
-#error Invalid SAMPLE_MODE
-#endif
+  assert(SAMPLE_MODE == 0);
+
   _sound_proc_param = param;
   _sound_proc = proc;
 
@@ -93,3 +88,9 @@ void OSystem_Dreamcast::checkSound()
   if((fillpos += n) >= curr_ring_buffer_samples)
     fillpos = 0;
 }
+
+int OSystem_Dreamcast::getOutputSampleRate() const
+{
+  return 22050;
+}
+
diff --git a/backends/dc/dc.h b/backends/dc/dc.h
index a72ecc252b..1425c5759b 100644
--- a/backends/dc/dc.h
+++ b/backends/dc/dc.h
@@ -30,6 +30,19 @@ class OSystem_Dreamcast : public OSystem {
  public:
   OSystem_Dreamcast();
 
+
+  // Retrieve a list of all graphics modes supported by this backend.
+  const GraphicsMode *getSupportedGraphicsModes() const;
+
+  // Switch to the specified graphics mode.
+  bool setGraphicsMode(int mode);
+
+  // Switch to the specified graphics mode.
+  bool setGraphicsMode(const char *name);
+
+  // Determine which graphics mode is currently active.
+  int getGraphicsMode() const;
+
   // Set colors of the palette
   void setPalette(const byte *colors, uint start, uint num);
 
@@ -49,11 +62,10 @@ class OSystem_Dreamcast : public OSystem {
 
   // Either show or hide the mouse cursor
   bool show_mouse(bool visible);
+
+  // Move ("warp") the mouse cursor to the specified position.
   void warp_mouse(int x, int y);
 
-  // Set the position of the mouse cursor
-  void set_mouse_pos(int x, int y);
-  
   // Set the bitmap that's used when drawing the cursor.
   void set_mouse_cursor(const byte *buf, uint w, uint h, int hotspot_x, int hotspot_y);
   
@@ -73,7 +85,14 @@ class OSystem_Dreamcast : public OSystem {
   // 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;
 		
+  // Initialise the specified CD drive for audio playback.
+  bool openCD(int drive);
+
   // Poll cdrom status
   // Returns true if cd audio is playing
   bool poll_cdrom();
@@ -90,9 +109,6 @@ class OSystem_Dreamcast : public OSystem {
   // Quit
   void quit();
 
-  // Set a parameter
-  uint32 property(int param, Property *value);
-
   // Overlay
   void show_overlay();
   void hide_overlay();
@@ -101,16 +117,20 @@ class OSystem_Dreamcast : public OSystem {
   void copy_rect_overlay(const int16 *buf, int pitch, int x, int y, int w, int h);
 
   // Add a callback timer
-  virtual void set_timer(TimerProc callback, int timer);
+  void set_timer(TimerProc callback, int timer);
 
   // Mutex handling
-  virtual MutexRef createMutex();
-  virtual void lockMutex(MutexRef mutex);
-  virtual void unlockMutex(MutexRef mutex);
-  virtual void deleteMutex(MutexRef mutex);
+  MutexRef createMutex();
+  void lockMutex(MutexRef mutex);
+  void unlockMutex(MutexRef mutex);
+  void deleteMutex(MutexRef mutex);
+
+  // Set a window caption or any other comparable status display to the
+  // given value.
+  void setWindowCaption(const char *caption);
 
   // Savefile handling
-  virtual SaveFileManager *get_savefile_manager();
+  SaveFileManager *get_savefile_manager();
 
 
   static OSystem *create();
diff --git a/backends/dc/dcmain.cpp b/backends/dc/dcmain.cpp
index 10970122b3..82ab1b666b 100644
--- a/backends/dc/dcmain.cpp
+++ b/backends/dc/dcmain.cpp
@@ -109,20 +109,15 @@ void OSystem_Dreamcast::update_cdrom()
   // Dummy.  The CD drive takes care of itself.
 }
 
-uint32 OSystem_Dreamcast::property(int param, Property *value)
+bool OSystem_Dreamcast::openCD(int drive)
 {
-  switch(param) {
-
-  case PROP_GET_SAMPLE_RATE:
-    return 22050;
-
-  case PROP_SET_WINDOW_CAPTION:
-    gGameName = value->caption;
-    break;
+  // Dummy.
+  return true;
+}
 
-  }
-  
-  return 0;
+void OSystem_Dreamcast::setWindowCaption(const char *caption)
+{
+  gGameName = caption;
 }
 
 void OSystem_Dreamcast::quit() {
diff --git a/backends/dc/display.cpp b/backends/dc/display.cpp
index 840454d51b..23365ba7ca 100644
--- a/backends/dc/display.cpp
+++ b/backends/dc/display.cpp
@@ -238,7 +238,7 @@ bool OSystem_Dreamcast::show_mouse(bool visible)
   return last;
 }
 
-void OSystem_Dreamcast::set_mouse_pos(int x, int y)
+void OSystem_Dreamcast::warp_mouse(int x, int y)
 {
   if (_overlay_visible) {
     x += _overlay_x;
@@ -248,11 +248,6 @@ void OSystem_Dreamcast::set_mouse_pos(int x, int y)
   _ms_cur_y = (_hires? (y>>1):y);
 }
 
-void OSystem_Dreamcast::warp_mouse(int x, int y)
-{
-  set_mouse_pos(x, y);
-}
-
 void OSystem_Dreamcast::set_mouse_cursor(const byte *buf, uint w, uint h,
 					 int hotspot_x, int hotspot_y)
 {
@@ -570,3 +565,30 @@ void OSystem_Dreamcast::copy_rect_overlay(const int16 *buf, int pitch,
   } while (--h);
   _overlay_dirty = true;
 }
+
+
+static const OSystem::GraphicsMode gfxmodes[] = {
+  { "default", "640×480 16bpp", 0 },
+  { NULL, NULL, 0 }
+};
+
+const OSystem::GraphicsMode *OSystem_Dreamcast::getSupportedGraphicsModes() const
+{
+  return gfxmodes;
+}
+
+bool OSystem_Dreamcast::setGraphicsMode(int mode)
+{
+  return mode == 0;
+}
+
+bool OSystem_Dreamcast::setGraphicsMode(const char *name)
+{
+  return strcmp(name, "default") == 0;
+}
+
+int OSystem_Dreamcast::getGraphicsMode() const
+{
+  return 0;
+}
+
diff --git a/backends/dc/input.cpp b/backends/dc/input.cpp
index d177b229a1..11417b5461 100644
--- a/backends/dc/input.cpp
+++ b/backends/dc/input.cpp
@@ -196,7 +196,7 @@ bool OSystem_Dreamcast::poll_event(Event *event)
     event->event_code = EVENT_MOUSEMOVE;
     _ms_old_x = _ms_cur_x;
     _ms_old_y = _ms_cur_y;
-    set_mouse_pos(event->mouse.x, event->mouse.y);
+    warp_mouse(event->mouse.x, event->mouse.y);
     return true;
   } else {
     event->event_code = (EventCode)0;