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
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef GLK_JUMPS
#define GLK_JUMPS
#include "common/str.h"
/* This provides a simplified version of the ScummVM coroutines to allow for automated
* breakouts to the main game loop from subroutinese rather than using unportable setjmps
*/
namespace Glk {
/**
* Context used for flagging when a break to the outer game loop
*/
struct Context {
bool _break;
Common::String _label;
Context() : _break(false) {}
/**
* Clear the context
*/
void clear() {
_break = false;
_label = "";
}
};
#define CALL0(METHOD) { METHOD(context); if (context._break) return; }
#define CALL1(METHOD, P1) { METHOD(context, P1); if (context._break) return; }
#define CALL2(METHOD, P1, P2) { METHOD(context, P1, P2); if (context._break) return; }
#define CALL3(METHOD, P1, P2, P3) { METHOD(context, P1, P2, P3); if (context._break) return; }
#define CALL4(METHOD, P1, P2, P3, P4) { METHOD(context, P1, P2, P3, P4); if (context._break) return; }
#define FUNC0(METHOD, RET) { RET = METHOD(context); if (context._break) return; }
#define FUNC1(METHOD, RET, P1) { RET = METHOD(context, P1); if (context._break) return; }
#define FUNC2(METHOD, RET, P1, P2) { RET = METHOD(context, P1, P2); if (context._break) return; }
#define FUNC3(METHOD, RET, P1, P2, P3) { RET = METHOD(context, P1, P2, P3); if (context._break) return; }
#define FUNC4(METHOD, RET, P1, P2, P3, P4) { RET = METHOD(context, P1, P2, P3, P4); if (context._break) return; }
#define R0CALL0(METHOD) { METHOD(context); if (context._break) return 0; }
#define R0CALL1(METHOD, P1) { METHOD(context, P1); if (context._break) return 0; }
#define R0CALL2(METHOD, P1, P2) { METHOD(context, P1, P2); if (context._break) return 0; }
#define R0CALL3(METHOD, P1, P2, P3) { METHOD(context, P1, P2, P3); if (context._break) return 0; }
#define R0CALL4(METHOD, P1, P2, P3, P4) { METHOD(context, P1, P2, P3, P4); if (context._break) return 0; }
#define R0FUNC0(METHOD, RET) { RET = METHOD(context); if (context._break) return 0; }
#define R0FUNC1(METHOD, RET, P1) { RET = METHOD(context, P1); if (context._break) return 0; }
#define R0FUNC2(METHOD, RET, P1, P2) { RET = METHOD(context, P1, P2); if (context._break) return 0; }
#define R0FUNC3(METHOD, RET, P1, P2, P3) { RET = METHOD(context, P1, P2, P3); if (context._break) return 0; }
#define R0FUNC4(METHOD, RET, P1, P2, P3, P4) { RET = METHOD(context, P1, P2, P3, P4); if (context._break) return 0; }
#define CONTEXT Context &context
#define LONG_JUMP { context._break = true; return; }
#define LONG_JUMP0 { context._break = true; return 0; }
#define LONG_JUMP_LABEL(LBL) { context._break = true; context._label = LBL; return; }
#define LONG_JUMP_LABEL0(LBL) { context._break = true; context._label = LBL; return 0; }
} // End of namespace Glk
#endif
|
