1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2003 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"
#include "savefile.h"
// 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_GET_FMOPL_ENV_BITS = 8,
PROP_GET_FMOPL_EG_ENT = 9
};
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;
// Warp the mouse cursor. Where set_mouse_pos() only informs the
// backend of the mouse cursor's current position, this function
// actually moves the cursor to the specified position.
virtual void warp_mouse(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(NewGuiColor *buf, int pitch) = 0;
virtual void copy_rect_overlay(const NewGuiColor *buf, int pitch, int x, int y, int w, int h) = 0;
// Low-level graphics access
virtual int16 get_height() {return 200;}
virtual int16 get_width() {return 320;}
// Methods that convert RGB to/from colors suitable for the overlay.
// Default implementation assumes 565 mode.
virtual NewGuiColor RGBToColor(uint8 r, uint8 g, uint8 b) {
return ((((r >> 3) & 0x1F) << 11) | (((g >> 2) & 0x3F) << 5) | ((b >> 3) & 0x1F));
}
virtual void colorToRGB(NewGuiColor color, uint8 &r, uint8 &g, uint8 &b) {
r = (((color >> 11) & 0x1F) << 3);
g = (((color >> 5) & 0x3F) << 2);
b = ((color&0x1F) << 3);
}
// Savefile management
virtual SaveFileManager *get_savefile_manager() {
return new SaveFileManager();
}
};
/* 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);
extern OSystem *OSystem_GP32_create(int gfx_mode, bool full_screen); //ph0x
enum {
#ifdef _WIN32_WCE
SAMPLES_PER_SEC_OLD = 11025,
SAMPLES_PER_SEC_NEW = 22050
#else
SAMPLES_PER_SEC = 22050
#endif
};
enum {
FMOPL_ENV_BITS_HQ = 16,
FMOPL_ENV_BITS_LQ = 8,
FMOPL_EG_ENT_HQ = 4096,
FMOPL_EG_ENT_LQ = 128
};
#endif
|