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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 COMMON_SYSTEM_H
#define COMMON_SYSTEM_H
#include "scummsys.h"
class Timer;
// Interface to the ScummVM backend
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,
EVENT_WHEELUP = 8,
EVENT_WHEELDOWN = 9,
};
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,
PROP_OVERLAY_IS_565 = 8
};
union Property {
const 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;
// Moves the screen content around by the given amount of pixels
// but only the top height pixel rows, the rest stays untouched
virtual void move_screen(int dx, int dy, int height) = 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;
// Overlay
virtual void show_overlay() = 0;
virtual void hide_overlay() = 0;
virtual void clear_overlay() = 0;
virtual void grab_overlay(int16 *buf, int pitch) = 0;
virtual void copy_rect_overlay(const int16 *buf, int pitch, int x, int y, int w, int h) = 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_OLD = 11025,
SAMPLES_PER_SEC_NEW = 22050
#else
SAMPLES_PER_SEC = 22050
#endif
};
#endif
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