Initial revision

svn-id: r4785

1 files changed, 199 insertions, 0 deletions

diff --git a/common/system.h b/common/system.h
new file mode 100644
index 0000000000..b8255eff48
--- /dev/null
+++ b/common/system.h
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+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001  Ludvig Strigeus
+ * Copyright (C) 2001/2002 The ScummVM 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; either version 2
+ * of the License, or (at your option) any later version.
+
+ * 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 for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * $Header$
+ *
+ */
+
+#ifndef _SYSTEM_H
+#define _SYSTEM_H
+
+/* Interface to what's below ScummVM */
+
+class OSystem {
+public:
+	typedef int ThreadProc(void *param);
+	typedef void SoundProc(void *param, byte *buf, int len);
+
+	struct Event {
+		int event_code;
+		struct {
+			uint16 ascii;
+			byte flags;
+			int keycode;
+		} kbd;
+		struct {
+			int x,y;
+		} mouse;
+	};
+
+	enum {
+		EVENT_KEYDOWN = 1,
+		EVENT_KEYUP = 2,
+		EVENT_MOUSEMOVE = 3,
+		EVENT_LBUTTONDOWN = 4,
+		EVENT_LBUTTONUP = 5,
+		EVENT_RBUTTONDOWN = 6,
+		EVENT_RBUTTONUP = 7,
+	};
+
+	enum {
+		KBD_CTRL = 1,
+		KBD_ALT = 2,
+		KBD_SHIFT = 4,
+	};
+
+	enum {
+		PROP_TOGGLE_FULLSCREEN = 1,
+		PROP_SET_WINDOW_CAPTION = 2,
+		PROP_OPEN_CD = 3,
+		PROP_SET_GFX_MODE = 4,
+		PROP_SHOW_DEFAULT_CURSOR = 5,
+		PROP_GET_SAMPLE_RATE = 6,
+		PROP_GET_FULLSCREEN = 7
+	};
+	union Property {
+		char *caption;
+		int cd_num;
+		int gfx_mode;
+		bool show_cursor;
+	};
+	
+	enum {
+		SOUND_8BIT = 0,
+		SOUND_16BIT = 1,
+	};
+	
+	// Set colors of the palette
+	virtual void set_palette(const byte *colors, uint start, uint num) = 0;
+
+	// Set the size of the video bitmap.
+	// Typically, 320x200
+	virtual void init_size(uint w, uint h) = 0;
+
+	// Draw a bitmap to screen.
+	// The screen will not be updated to reflect the new bitmap
+	virtual void copy_rect(const byte *buf, int pitch, int x, int y, int w, int h) = 0;
+
+	// Update the dirty areas of the screen
+	virtual void update_screen() = 0;
+
+	// Either show or hide the mouse cursor
+	virtual bool show_mouse(bool visible) = 0;
+	
+	// Set the position of the mouse cursor
+	virtual void set_mouse_pos(int x, int y) = 0;
+	
+	// Set the bitmap that's used when drawing the cursor.
+	virtual void set_mouse_cursor(const byte *buf, uint w, uint h, int hotspot_x, int hotspot_y) = 0;
+	
+	// Shaking is used in SCUMM. Set current shake position.
+	virtual void set_shake_pos(int shake_pos) = 0;
+		
+	// Get the number of milliseconds since the program was started.
+	virtual uint32 get_msecs() = 0;
+	
+	// Delay for a specified amount of milliseconds
+	virtual void delay_msecs(uint msecs) = 0;
+	
+	// Create a thread
+	virtual void *create_thread(ThreadProc *proc, void *param) = 0;
+	
+	// Get the next event.
+	// Returns true if an event was retrieved.	
+	virtual bool poll_event(Event *event) = 0;
+
+	// Set the function to be invoked whenever samples need to be generated
+	// Format is the sample type format.
+	// Only 16-bit signed mode is needed for simon & scumm
+	virtual bool set_sound_proc(void *param, SoundProc *proc, byte format) = 0;
+	
+	// Get or set a property
+	virtual uint32 property(int param, Property *value) = 0;
+		
+	// Poll cdrom status
+	// Returns true if cd audio is playing
+	virtual bool poll_cdrom() = 0;
+
+	// Play cdrom audio track
+	virtual void play_cdrom(int track, int num_loops, int start_frame, int end_frame) = 0;
+
+	// Stop cdrom audio track
+	virtual void stop_cdrom() = 0;
+
+	// Update cdrom audio status
+	virtual void update_cdrom() = 0;
+
+	// Add a new callback timer
+	virtual void set_timer(int timer, int (*callback)(int)) = 0;
+
+	// Mutex handling
+	virtual void *create_mutex(void) = 0;
+	virtual void lock_mutex(void *mutex) = 0;
+	virtual void unlock_mutex(void *mutex) = 0;
+	virtual void delete_mutex(void *mutex) = 0;
+
+	// Quit
+	virtual void quit() = 0;
+};
+
+
+/* Factory functions. This means we don't have to include the
+ * OSystem_SDL header file. (which in turn would require the SDL headers)
+ */
+
+/* OSystem_SDL */
+extern OSystem *OSystem_SDL_create(int gfx_driver, bool full_screen);
+extern OSystem *OSystem_NULL_create();
+extern OSystem *OSystem_MorphOS_create(int game_id, int gfx_driver, bool full_screen);
+extern OSystem *OSystem_Dreamcast_create();
+extern OSystem *OSystem_WINCE3_create();
+extern OSystem *OSystem_X11_create();
+extern OSystem *OSystem_MAC_create(int gfx_mode, bool full_screen);
+
+enum {
+	GFX_NORMAL = 0,
+	GFX_DOUBLESIZE = 1,
+	GFX_TRIPLESIZE = 2,
+	GFX_2XSAI = 3,
+	GFX_SUPER2XSAI = 4,
+	GFX_SUPEREAGLE = 5,
+	GFX_ADVMAME2X = 6
+};
+
+
+/* Graphics drivers */
+enum {
+	GD_NULL = 0,
+	GD_SDL,
+	GD_X,
+	GD_MORPHOS,
+	GD_WINCE,
+	GD_MAC,
+	GD_DC
+};
+
+enum {
+#ifdef _WIN32_WCE
+	SAMPLES_PER_SEC =  11025
+#else
+	SAMPLES_PER_SEC =  22050
+#endif
+};
+
+#endif