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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001-2004 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.
*
* $Header$
*
*/
#include "stdafx.h"
#include "common/scummsys.h"
#include "common/system.h"
#if defined(USE_NULL_DRIVER)
/* NULL video driver */
class OSystem_NULL : public OSystem {
public:
void set_palette(const byte *colors, uint start, uint num) {}
void init_size(uint w, uint h);
void copy_rect(const byte *buf, int pitch, int x, int y, int w, int h) {}
void move_screen(int dx, int dy) {}
void update_screen() {}
bool show_mouse(bool visible) { return false; }
void set_mouse_pos(int x, int y) {}
void set_mouse_cursor(const byte *buf, uint w, uint h, int hotspot_x, int hotspot_y) {}
void set_shake_pos(int shake_pos) {}
uint32 get_msecs();
void delay_msecs(uint msecs);
bool poll_event(Event *event) { return false; }
bool set_sound_proc(SoundProc proc, void *param, SoundFormat format) {}
void quit() { exit(1); }
uint32 property(int param, Property *value) { return 0; }
static OSystem *create(int gfx_mode, bool full_screen);
private:
uint msec_start;
uint32 get_ticks();
};
void OSystem_NULL::init_size(uint w, uint h, byte sound) {
msec_start = get_ticks();
}
uint32 OSystem_NULL::get_ticks() {
uint a = 0;
#ifdef WIN32
a = GetTickCount();
#endif
#ifdef UNIX
struct timeval tv;
gettimeofday(&tv, NULL);
a = tv.tv_sec * 1000 + tv.tv_usec / 1000;
#endif
return a;
}
void OSystem_NULL::delay_msecs(uint msecs) {
#ifdef WIN32
Sleep(msecs);
#endif
#ifdef UNIX
usleep(msecs * 1000);
#endif
}
uint32 OSystem_NULL::get_msecs() {
return get_ticks() - msec_start;
}
OSystem *OSystem_NULL_create() {
return new OSystem_NULL();
}
#else /* USE_NULL_DRIVER */
OSystem *OSystem_NULL_create() {
return NULL;
}
#endif
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