git.zerfleddert.de Git - micropolis/blob - src/sim/headers/cam.h

   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  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
  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