1 files changed, 102 insertions, 0 deletions
diff --git a/backends/dc/dc.h b/backends/dc/dc.h
new file mode 100644
index 0000000000..4a2b78cfb7
--- /dev/null
+++ b/backends/dc/dc.h
@@ -0,0 +1,102 @@
+#include <ronin/soundcommon.h>
+
+#define NUM_BUFFERS 4
+
+class OSystem_Dreamcast : public OSystem {
+
+ public:
+  // Set colors of the palette
+  void set_palette(const byte *colors, uint start, uint num);
+
+  // Set the size of the video bitmap.
+  // Typically, 320x200
+  void init_size(uint w, uint h);
+
+  // Draw a bitmap to screen.
+  // The screen will not be updated to reflect the new bitmap
+  void copy_rect(const byte *buf, int pitch, int x, int y, int w, int h);
+
+  // Update the dirty areas of the screen
+  void update_screen();
+
+  // Either show or hide the mouse cursor
+  bool show_mouse(bool visible);
+  
+  // 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);
+  
+  // Shaking is used in SCUMM. Set current shake position.
+  void set_shake_pos(int shake_pos);
+
+  // Get the number of milliseconds since the program was started.
+  uint32 get_msecs();
+  
+  // Delay for a specified amount of milliseconds
+  void delay_msecs(uint msecs);
+  
+  // Create a thread
+  void *create_thread(ThreadProc *proc, void *param);
+	
+  // Get the next event.
+  // Returns true if an event was retrieved.	
+  bool poll_event(Event *event);
+  
+  // Set function that generates samples 
+  bool set_sound_proc(void *param, SoundProc *proc, byte sound);
+		
+  // Poll cdrom status
+  // Returns true if cd audio is playing
+  bool poll_cdrom();
+
+  // Play cdrom audio track
+  void play_cdrom(int track, int num_loops, int start_frame, int end_frame);
+  
+  // Stop cdrom audio track
+  void stop_cdrom();
+
+  // Update cdrom audio status
+  void update_cdrom();
+
+  // Quit
+  void quit();
+
+  // Set a parameter
+  uint32 property(int param, Property *value);
+
+  static OSystem *create();
+
+
+ private:
+
+  int _ms_cur_x, _ms_cur_y, _ms_cur_w, _ms_cur_h, _ms_old_x, _ms_old_y;
+  int _ms_hotspot_x, _ms_hotspot_y, _ms_visible, _devpoll;
+  int _current_shake_pos, _screen_h;
+  unsigned char *_ms_buf;
+  SoundProc *_sound_proc;
+  void *_sound_proc_param;
+
+  unsigned char *screen;
+  unsigned short *mouse;
+  void *screen_tx[NUM_BUFFERS];
+  void *mouse_tx[NUM_BUFFERS];
+  int current_buffer;
+  unsigned short palette[256];
+
+  short temp_sound_buffer[RING_BUFFER_SAMPLES];
+
+  void checkSound();
+
+  void drawMouse(int xdraw, int ydraw, int w, int h,
+		 unsigned char *buf, bool visible);
+
+};
+
+extern int handleInput(struct mapledev *pad,
+		       int &mouse_x, int &mouse_y,
+		       byte &shiftFlags);
+extern void initSound();
+extern bool selectGame(GameDetector *d, char *&, char *&, class Icon &);
+