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
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
|
/* 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "sci/sci.h"
#include "sci/engine/kernel.h"
#include "sci/engine/state.h"
#include "sci/engine/selector.h"
namespace Sci {
#if 1
#define FIND_SELECTOR(_slc_) _selectorCache._slc_ = findSelector(#_slc_)
#define FIND_SELECTOR2(_slc_, _slcstr_) _selectorCache._slc_ = findSelector(_slcstr_)
#else
// The defines below can be used to construct static selector tables for games which don't have
// a vocab.997 resource, by dumping the selector table from other similar versions or games
#define FIND_SELECTOR(_slc_) _selectorCache._slc_ = findSelector(#_slc_); \
debugN("\t{ \"%s\", %d },\n", #_slc_, _selectorCache._slc_)
#define FIND_SELECTOR2(_slc_, _slcstr_) _selectorCache._slc_ = findSelector(_slcstr_); \
debugN("\t{ \"%s\", %d },\n", _slcstr_, _selectorCache._slc_)
#endif
void Kernel::mapSelectors() {
// species
// superClass
FIND_SELECTOR2(_info_, "-info-");
FIND_SELECTOR(y);
FIND_SELECTOR(x);
FIND_SELECTOR(view);
FIND_SELECTOR(loop);
FIND_SELECTOR(cel);
FIND_SELECTOR(underBits);
FIND_SELECTOR(nsTop);
FIND_SELECTOR(nsLeft);
FIND_SELECTOR(nsBottom);
FIND_SELECTOR(lsTop);
FIND_SELECTOR(lsLeft);
FIND_SELECTOR(lsBottom);
FIND_SELECTOR(lsRight);
FIND_SELECTOR(nsRight);
FIND_SELECTOR(signal);
FIND_SELECTOR(illegalBits);
FIND_SELECTOR(brTop);
FIND_SELECTOR(brLeft);
FIND_SELECTOR(brBottom);
FIND_SELECTOR(brRight);
// name
// key
// time
FIND_SELECTOR(text);
FIND_SELECTOR(elements);
// color
// back
FIND_SELECTOR(mode);
// style
FIND_SELECTOR(state);
FIND_SELECTOR(font);
FIND_SELECTOR(type);
// window
FIND_SELECTOR(cursor);
FIND_SELECTOR(max);
FIND_SELECTOR(mark);
FIND_SELECTOR(sort);
// who
FIND_SELECTOR(message);
// edit
FIND_SELECTOR(play);
FIND_SELECTOR(number);
FIND_SELECTOR(handle); // nodePtr
FIND_SELECTOR(client);
FIND_SELECTOR(dx);
FIND_SELECTOR(dy);
FIND_SELECTOR2(b_movCnt, "b-moveCnt");
FIND_SELECTOR2(b_i1, "b-i1");
FIND_SELECTOR2(b_i2, "b-i2");
FIND_SELECTOR2(b_di, "b-di");
FIND_SELECTOR2(b_xAxis, "b-xAxis");
FIND_SELECTOR2(b_incr, "b-incr");
FIND_SELECTOR(xStep);
FIND_SELECTOR(yStep);
FIND_SELECTOR(xLast);
FIND_SELECTOR(yLast);
FIND_SELECTOR(moveSpeed);
FIND_SELECTOR(canBeHere); // cantBeHere
FIND_SELECTOR(heading);
FIND_SELECTOR(mover);
FIND_SELECTOR(doit);
FIND_SELECTOR(isBlocked);
FIND_SELECTOR(looper);
FIND_SELECTOR(priority);
FIND_SELECTOR(modifiers);
FIND_SELECTOR(replay);
// setPri
// at
// next
// done
// width
FIND_SELECTOR(wordFail);
FIND_SELECTOR(syntaxFail);
// semanticFail
// pragmaFail
// said
FIND_SELECTOR(claimed);
// value
// save
// restore
// title
// button
// icon
// draw
FIND_SELECTOR2(delete_, "delete");
FIND_SELECTOR(z);
// -----------------------------
FIND_SELECTOR(size);
FIND_SELECTOR(moveDone);
FIND_SELECTOR(vol);
FIND_SELECTOR(pri);
FIND_SELECTOR(min);
FIND_SELECTOR(sec);
FIND_SELECTOR(frame);
FIND_SELECTOR(dataInc);
FIND_SELECTOR(palette);
FIND_SELECTOR(cantBeHere);
FIND_SELECTOR(nodePtr);
FIND_SELECTOR(flags);
FIND_SELECTOR(points);
FIND_SELECTOR(syncCue);
FIND_SELECTOR(syncTime);
FIND_SELECTOR(printLang);
FIND_SELECTOR(subtitleLang);
FIND_SELECTOR(parseLang);
FIND_SELECTOR(overlay);
FIND_SELECTOR(topString);
FIND_SELECTOR(scaleSignal);
FIND_SELECTOR(scaleX);
FIND_SELECTOR(scaleY);
FIND_SELECTOR(maxScale);
FIND_SELECTOR(vanishingX);
FIND_SELECTOR(vanishingY);
FIND_SELECTOR(iconIndex);
FIND_SELECTOR(select);
#ifdef ENABLE_SCI32
FIND_SELECTOR(data);
FIND_SELECTOR(picture);
FIND_SELECTOR(bitmap);
FIND_SELECTOR(plane);
FIND_SELECTOR(top);
FIND_SELECTOR(left);
FIND_SELECTOR(bottom);
FIND_SELECTOR(right);
FIND_SELECTOR(resY);
FIND_SELECTOR(resX);
FIND_SELECTOR(dimmed);
FIND_SELECTOR(fore);
FIND_SELECTOR(back);
FIND_SELECTOR(skip);
FIND_SELECTOR(fixPriority);
FIND_SELECTOR(mirrored);
FIND_SELECTOR(visible);
FIND_SELECTOR(useInsetRect);
FIND_SELECTOR(inTop);
FIND_SELECTOR(inLeft);
FIND_SELECTOR(inBottom);
FIND_SELECTOR(inRight);
#endif
}
reg_t readSelector(SegManager *segMan, reg_t object, Selector selectorId) {
ObjVarRef address;
if (lookupSelector(segMan, object, selectorId, &address, NULL) != kSelectorVariable)
return NULL_REG;
else
return *address.getPointer(segMan);
}
void writeSelector(SegManager *segMan, reg_t object, Selector selectorId, reg_t value) {
ObjVarRef address;
if ((selectorId < 0) || (selectorId > (int)g_sci->getKernel()->getSelectorNamesSize())) {
error("Attempt to write to invalid selector %d of"
" object at %04x:%04x.", selectorId, PRINT_REG(object));
return;
}
if (lookupSelector(segMan, object, selectorId, &address, NULL) != kSelectorVariable)
error("Selector '%s' of object at %04x:%04x could not be"
" written to", g_sci->getKernel()->getSelectorName(selectorId).c_str(), PRINT_REG(object));
else
*address.getPointer(segMan) = value;
}
void invokeSelector(EngineState *s, reg_t object, int selectorId,
int k_argc, StackPtr k_argp, int argc, const reg_t *argv) {
int i;
int framesize = 2 + 1 * argc;
int slc_type;
StackPtr stackframe = k_argp + k_argc;
stackframe[0] = make_reg(0, selectorId); // The selector we want to call
stackframe[1] = make_reg(0, argc); // Argument count
slc_type = lookupSelector(s->_segMan, object, selectorId, NULL, NULL);
if (slc_type == kSelectorNone) {
error("Selector '%s' of object at %04x:%04x could not be invoked",
g_sci->getKernel()->getSelectorName(selectorId).c_str(), PRINT_REG(object));
}
if (slc_type == kSelectorVariable) {
error("Attempting to invoke variable selector %s of object %04x:%04x",
g_sci->getKernel()->getSelectorName(selectorId).c_str(), PRINT_REG(object));
}
for (i = 0; i < argc; i++)
stackframe[2 + i] = argv[i]; // Write each argument
ExecStack *xstack;
// Now commit the actual function:
xstack = send_selector(s, object, object, stackframe, framesize, stackframe);
xstack->sp += argc + 2;
xstack->fp += argc + 2;
run_vm(s); // Start a new vm
}
SelectorType lookupSelector(SegManager *segMan, reg_t obj_location, Selector selectorId, ObjVarRef *varp, reg_t *fptr) {
const Object *obj = segMan->getObject(obj_location);
int index;
bool oldScriptHeader = (getSciVersion() == SCI_VERSION_0_EARLY);
// Early SCI versions used the LSB in the selector ID as a read/write
// toggle, meaning that we must remove it for selector lookup.
if (oldScriptHeader)
selectorId &= ~1;
if (!obj) {
error("lookupSelector(): Attempt to send to non-object or invalid script. Address was %04x:%04x",
PRINT_REG(obj_location));
}
index = obj->locateVarSelector(segMan, selectorId);
if (index >= 0) {
// Found it as a variable
if (varp) {
varp->obj = obj_location;
varp->varindex = index;
}
return kSelectorVariable;
} else {
// Check if it's a method, with recursive lookup in superclasses
while (obj) {
index = obj->funcSelectorPosition(selectorId);
if (index >= 0) {
if (fptr)
*fptr = obj->getFunction(index);
return kSelectorMethod;
} else {
obj = segMan->getObject(obj->getSuperClassSelector());
}
}
return kSelectorNone;
}
// return _lookupSelector_function(segMan, obj, selectorId, fptr);
}
} // End of namespace Sci
|
