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1.1 root 1: /* cam.h
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 [email protected].
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:
63: #include <stdio.h>
64: #include <stdlib.h>
65: #include <fcntl.h>
66: #include <signal.h>
67: #ifndef HPUX
68: #include <stropts.h>
69: #endif
70: #include <time.h>
71: #include <errno.h>
72: #ifndef IS_LINUX
73: #include <sys/conf.h>
74: #endif
75: #include <sys/types.h>
76: #include <sys/stat.h>
77: #include <sys/file.h>
78: #include <sys/mman.h>
79: #include <sys/socket.h>
80: #include <netinet/in.h>
81: #include <sys/ipc.h>
82: #include <sys/shm.h>
83: #include <X11/Xlib.h>
84: #include <X11/Xatom.h>
85: #include <X11/extensions/XShm.h>
86:
87:
88: #define CAM_ARGS \
89: SimCam *scam, ARGS
90:
91:
92: struct Can {
93: Byte *mem;
94: int line_bytes;
95: int width;
96: int height;
97: };
98:
99: typedef struct Can Can;
100:
101:
102: struct Cam {
103: struct Cam *next;
104: Can *back, *front;
105: void (*neighborhood)();
106: Byte *rule;
107: int rule_size;
108: int width;
109: int height;
110: int ideal_width;
111: int ideal_height;
112: int phase;
113: int wrap;
114: int steps;
115: int frob;
116: int x;
117: int y;
118: int dx;
119: int dy;
120: int gx;
121: int gy;
122: int dragging;
123: int set_x;
124: int set_y;
125: int set_width;
126: int set_height;
127: int set_x0;
128: int set_y0;
129: int set_x1;
130: int set_y1;
131: char *name;
132: };
133:
134:
135: typedef struct Cam Cam;
136:
137:
138: struct SimCam {
139: struct SimCam *next;
140: int w_x, w_y, w_width, w_height;
141: int visible;
142: int invalid;
143: int skips;
144: int skip;
145: Tk_Window tkwin;
146: Tcl_Interp *interp;
147: int flags;
148: XDisplay *x;
149: XImage *image;
150: XShmSegmentInfo *shminfo;
151: int line_bytes;
152: u_char *data;
153: int cam_count;
154: Cam *cam_list;
155: };
156:
157:
158: typedef struct SimCam SimCam;
159:
160:
161: #define NORTHWEST ((Byte)((l0>>16) & 0xff))
162: #define NORTH ((Byte)((l0>>8) & 0xff))
163: #define NORTHEAST ((Byte)(l0 & 0xff))
164: #define WEST ((Byte)((l1>>16) & 0xff))
165: #define CENTER ((Byte)((l1>>8) & 0xff))
166: #define EAST ((Byte)(l1 & 0xff))
167: #define SOUTHWEST ((Byte)((l2>>16) & 0xff))
168: #define SOUTH ((Byte)((l2>>8) & 0xff))
169: #define SOUTHEAST ((Byte)(l2 & 0xff))
170:
171: #define SUM8 ((l0&1) + ((l0>>8)&1) + ((l0>>16)&1) + \
172: (l1&1) + ((l1>>16)&1) + \
173: (l2&1) + ((l2>>8)&1) + ((l2>>16)&1))
174:
175: #define SUM9 (SUM8 + ((l1>>8)&1))
176:
177: #define SUM8p(p) (((l0>>p)&1) + ((l0>>(p+8))&1) + ((l0>>(p+16))&1) + \
178: ((l1>>p)&1) + ((l1>>(p+16))&1) + \
179: ((l2>>p)&1) + ((l2>>(p+8))&1) + ((l2>>(p+16))&1))
180:
181: #define SUM9p(p) (SUM8p(p) + ((l1>>(p+8))&1))
182:
183: #define CAM_LOOP_BODY(BODY) \
184: { int y; \
185: int backline = cam->back->line_bytes, \
186: frontline = cam->front->line_bytes; \
187: Byte *back = cam->back->mem, \
188: *front = cam->front->mem; \
189: Byte *rule = cam->rule; \
190: for (y=0; y<cam->height; y++) { \
191: QUAD l0 = (back[0]<<8) + \
192: back[1], \
193: l1 = (back[backline]<<8) + \
194: back[backline+1], \
195: l2 = (back[backline+backline]<<8) + \
196: back[backline+backline+1]; \
197: int x, w = cam->width; \
198: for (x=0; x<w; x++) { \
199: l0 = (l0<<8) + back[2]; \
200: l1 = (l1<<8) + back[backline+2]; \
201: l2 = (l2<<8) + back[backline+backline+2]; \
202: BODY; \
203: back++; front++; \
204: } \
205: back += backline - w; front += frontline - w; \
206: } \
207: }
208:
209: #define CAM_LOOP(RULE) \
210: CAM_LOOP_BODY(*front = (RULE) )
211:
212: #define CAM_TABLE_LOOP(NEIGHBORHOOD) \
213: CAM_LOOP(rule[(NEIGHBORHOOD)])
214:
215:
216: typedef void (*vf)();
217:
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