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
|
/* 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,
};
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, uint32 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;
// 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 */
OSystem *OSystem_SDL_create(int gfx_driver, bool full_screen);
OSystem *OSystem_NULL_create();
OSystem *OSystem_MorphOS_create(int game_id, int gfx_driver, bool full_screen);
OSystem *OSystem_Dreamcast_create();
OSystem *OSystem_WINCE3_create();
enum {
GFX_NORMAL = 0,
GFX_DOUBLESIZE = 1,
GFX_TRIPLESIZE = 2,
GFX_2XSAI = 3,
GFX_SUPER2XSAI = 4,
GFX_SUPEREAGLE = 5,
};
/* Graphics drivers */
enum {
GD_AUTO = 0,
GD_SDL = 1,
GD_WIN32 = 2,
GD_X = 3,
GD_NULL = 4,
GD_MORPHOS = 5,
GD_WINCE = 6
};
|
