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[micropolis] / src / sim / g_bigmap.c
1 /* g_bigmap.c
2 *
3 * Micropolis, Unix Version. This game was released for the Unix platform
4 * in or about 1990 and has been modified for inclusion in the One Laptop
5 * Per Child program. Copyright (C) 1989 - 2007 Electronic Arts Inc. If
6 * you need assistance with this program, you may contact:
7 * http://wiki.laptop.org/go/Micropolis or email micropolis@laptop.org.
8 *
9 * This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or (at
12 * your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details. You should have received a
18 * copy of the GNU General Public License along with this program. If
19 * not, see <http://www.gnu.org/licenses/>.
20 *
21 * ADDITIONAL TERMS per GNU GPL Section 7
22 *
23 * No trademark or publicity rights are granted. This license does NOT
24 * give you any right, title or interest in the trademark SimCity or any
25 * other Electronic Arts trademark. You may not distribute any
26 * modification of this program using the trademark SimCity or claim any
27 * affliation or association with Electronic Arts Inc. or its employees.
28 *
29 * Any propagation or conveyance of this program must include this
30 * copyright notice and these terms.
31 *
32 * If you convey this program (or any modifications of it) and assume
33 * contractual liability for the program to recipients of it, you agree
34 * to indemnify Electronic Arts for any liability that those contractual
35 * assumptions impose on Electronic Arts.
36 *
37 * You may not misrepresent the origins of this program; modified
38 * versions of the program must be marked as such and not identified as
39 * the original program.
40 *
41 * This disclaimer supplements the one included in the General Public
42 * License. TO THE FULLEST EXTENT PERMISSIBLE UNDER APPLICABLE LAW, THIS
43 * PROGRAM IS PROVIDED TO YOU "AS IS," WITH ALL FAULTS, WITHOUT WARRANTY
44 * OF ANY KIND, AND YOUR USE IS AT YOUR SOLE RISK. THE ENTIRE RISK OF
45 * SATISFACTORY QUALITY AND PERFORMANCE RESIDES WITH YOU. ELECTRONIC ARTS
46 * DISCLAIMS ANY AND ALL EXPRESS, IMPLIED OR STATUTORY WARRANTIES,
47 * INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, SATISFACTORY QUALITY,
48 * FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT OF THIRD PARTY
49 * RIGHTS, AND WARRANTIES (IF ANY) ARISING FROM A COURSE OF DEALING,
50 * USAGE, OR TRADE PRACTICE. ELECTRONIC ARTS DOES NOT WARRANT AGAINST
51 * INTERFERENCE WITH YOUR ENJOYMENT OF THE PROGRAM; THAT THE PROGRAM WILL
52 * MEET YOUR REQUIREMENTS; THAT OPERATION OF THE PROGRAM WILL BE
53 * UNINTERRUPTED OR ERROR-FREE, OR THAT THE PROGRAM WILL BE COMPATIBLE
54 * WITH THIRD PARTY SOFTWARE OR THAT ANY ERRORS IN THE PROGRAM WILL BE
55 * CORRECTED. NO ORAL OR WRITTEN ADVICE PROVIDED BY ELECTRONIC ARTS OR
56 * ANY AUTHORIZED REPRESENTATIVE SHALL CREATE A WARRANTY. SOME
57 * JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF OR LIMITATIONS ON IMPLIED
58 * WARRANTIES OR THE LIMITATIONS ON THE APPLICABLE STATUTORY RIGHTS OF A
59 * CONSUMER, SO SOME OR ALL OF THE ABOVE EXCLUSIONS AND LIMITATIONS MAY
60 * NOT APPLY TO YOU.
61 */
62 #include "sim.h"
63
64
65 int dynamicFilter(int c, int r);
66 int WireDrawBeegMapRect(SimView *view, short x, short y, short w, short h);
67
68 drawBeegMaps()
69 {
70 sim_update_editors();
71 }
72
73
74 MemDrawBeegMapRect(SimView *view, int x, int y, int w, int h)
75 {
76 int lineBytes = view->line_bytes;
77 int pixelBytes = view->pixel_bytes;
78 QUAD ii, mm;
79 unsigned short *map;
80 unsigned short tile;
81 unsigned char blink = (flagBlink <= 0), *bt = view->bigtiles;
82 short col, row;
83 short **have, *ha;
84
85 if (x < view->tile_x) {
86 if ((w -= (view->tile_x - x)) <= 0)
87 return;
88 x = view->tile_x;
89 }
90 if (y < view->tile_y) {
91 if ((h -= (view->tile_y - y)) <= 0)
92 return;
93 y = view->tile_y;
94 }
95 if ((x + w) > (view->tile_x + view->tile_width)) {
96 if ((w -= ((x + w) - (view->tile_x + view->tile_width))) <= 0)
97 return;
98 }
99 if ((y + h) > (view->tile_y + view->tile_height)) {
100 if ((h -= ((y + h) - (view->tile_y + view->tile_height))) <= 0)
101 return;
102 }
103
104 if (view->x->color) {
105 register unsigned QUAD *image, *mem;
106
107 image = (unsigned QUAD *)view->data;
108 ii = ((lineBytes * h * 16) - 16) / sizeof(unsigned QUAD);
109 map = (unsigned short *)&Map[x][y];
110 mm = WORLD_Y - h;
111 have = view->tiles;
112
113 /*
114 * Huge Berserk Rebel Warthog
115 */
116
117 for (col = 0; col < w; col++) {
118 ha = &have[col][0];
119 image = (unsigned QUAD *)(view->data + (col * 16 * pixelBytes));
120 for (row = 0; row < h; row++, ha++) {
121 tile = *(map++);
122 if ((tile & LOMASK) >= TILE_COUNT) tile -= TILE_COUNT;
123
124 /* Blink lightning bolt in unpowered zone center */
125 if (blink && (tile & ZONEBIT) && !(tile & PWRBIT)) {
126 tile = LIGHTNINGBOLT;
127 } else {
128 tile &= LOMASK;
129 } // if
130
131 if (
132 (tile > 63) &&
133 (view->dynamic_filter != 0) &&
134 (dynamicFilter(col + x, row + y) == 0)
135 ) {
136 tile = 0;
137 } // if
138
139 /* XXX */
140 if (tile == *ha) {
141 image = (unsigned QUAD *)(((unsigned char *)image) +
142 (lineBytes * 16));
143 } else {
144 *ha = tile;
145 mem = (unsigned QUAD *)&(bt[tile * 256 * pixelBytes]);
146
147 /* XXX: handle depth for big tiles */
148 #if 1
149 /* Very un-rolled loop. */
150
151 #define ROW1_8(n) \
152 image[0] = mem[0+n]; \
153 image[1] = mem[1+n]; \
154 image[2] = mem[2+n]; \
155 image[3] = mem[3+n]; \
156 image = (unsigned QUAD *)(((unsigned char *)image) + lineBytes);
157
158 #define ROW2_8(n) ROW1_8(n) ROW1_8(n+4)
159 #define ROW4_8(n) ROW2_8(n) ROW2_8(n+8)
160 #define ROW8_8(n) ROW4_8(n) ROW4_8(n+16)
161 #define ROW16_8() ROW8_8(0) ROW8_8(32)
162
163 #define ROW1_16(n) \
164 memcpy((char *)image, (char *)mem + (2 * 16 * (n)), 2 * 16); \
165 image = (unsigned QUAD *)(((unsigned char *)image) + lineBytes);
166
167 #define ROW2_16(n) ROW1_16(n) ROW1_16(n+1)
168 #define ROW4_16(n) ROW2_16(n) ROW2_16(n+2)
169 #define ROW8_16(n) ROW4_16(n) ROW4_16(n+4)
170 #define ROW16_16() ROW8_16(0) ROW8_16(8)
171
172 switch (view->x->depth) {
173
174 case 8:
175 ROW16_8();
176 break;
177
178 case 15:
179 case 16:
180 ROW16_16();
181 break;
182
183 case 24:
184 case 32:
185 default:
186 /* XXX: handle different depths */
187 break;
188
189 } // switch
190
191 #else
192 /* Not so un-rolled loop. */
193
194 { int i;
195 for (i = 16; i > 0; i--) {
196 image[0] = mem[0]; image[1] = mem[1];
197 image[2] = mem[2]; image[3] = mem[3];
198 image = (unsigned QUAD *)(((unsigned char *)image) + lineBytes);
199 mem += 4;
200 }
201 } // scope
202 #endif
203
204 } // if
205
206 } // for row
207 image -= ii;
208 map += mm;
209 } // for col
210 } else {
211 register unsigned short *image, *mem;
212
213 image = (unsigned short *)view->data;
214 ii = ((lineBytes * h * 16) - 2) / sizeof(unsigned short);
215 map = (unsigned short *)&Map[x][y];
216 mm = WORLD_Y - h;
217 have = view->tiles;
218
219 for (col = 0; col < w; col++) {
220 ha = &have[col][0];
221 image = (unsigned short *)(view->data + (col * 2));
222 for (row = 0; row < h; row++, ha++) {
223 tile = *(map++);
224 if ((tile & LOMASK) >= TILE_COUNT) tile -= TILE_COUNT;
225
226 /* Blink lightning bolt in unpowered zone center */
227 if (blink && (tile & ZONEBIT) && !(tile & PWRBIT))
228 tile = LIGHTNINGBOLT;
229 else
230 tile &= LOMASK;
231
232 if (tile == *ha) {
233 image = (unsigned short *)
234 (((unsigned char *)image) + (lineBytes * 16));
235 } else {
236 *ha = tile;
237 mem = (unsigned short *)&(bt[tile * 32]);
238
239 { char i;
240 for (i = 16; i > 0; i--) {
241 *image = *mem;
242 image = (unsigned short *)(((unsigned char *)image) + lineBytes);
243 mem++;
244 }
245 }
246 }
247 }
248 image -= ii;
249 map += mm;
250 }
251 }
252 }
253
254
255 WireDrawBeegMapRect(SimView *view, short x, short y, short w, short h)
256 {
257 unsigned short *map;
258 unsigned short tile;
259 unsigned char blink = (flagBlink <= 0);
260 short col, row;
261 QUAD mm;
262 short **have, *ha;
263
264 if (x < view->tile_x) {
265 if ((w -= (view->tile_x - x)) <= 0)
266 return;
267 x = view->tile_x;
268 }
269 if (y < view->tile_y) {
270 if ((h -= (view->tile_y - y)) <= 0)
271 return;
272 y = view->tile_y;
273 }
274 if ((x + w) > (view->tile_x + view->tile_width)) {
275 if ((w -= ((x + w) - (view->tile_x + view->tile_width))) <= 0)
276 return;
277 }
278 if ((y + h) > (view->tile_y + view->tile_height)) {
279 if ((h -= ((y + h) - (view->tile_y + view->tile_height))) <= 0)
280 return;
281 }
282
283 map = (unsigned short *)&Map[x][y];
284 mm = WORLD_Y - h;
285 have = view->tiles;
286
287 for (col = 0; col < w; col++) {
288 ha = &have[col][0];
289 for (row = 0; row < h; row++, ha++) {
290 tile = *(map++);
291 if ((tile & LOMASK) >= TILE_COUNT) tile -= TILE_COUNT;
292
293 /* Blink lightning bolt in unpowered zone center */
294 if (blink && (tile & ZONEBIT) && !(tile & PWRBIT))
295 tile = LIGHTNINGBOLT;
296 else
297 tile &= LOMASK;
298
299 if (tile != *ha) {
300 *ha = tile;
301 XCopyArea(view->x->dpy, view->x->big_tile_pixmap, view->pixmap,
302 view->x->gc, 0, tile * 16, 16, 16,
303 col * 16, row * 16);
304 }
305 }
306 map += mm;
307 }
308 }
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