1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/ljreplay.c	Fri Mar 13 00:39:12 2009 -0700
     1.3 @@ -0,0 +1,335 @@
     1.4 +/* Replay functionality for LOCKJAW, an implementation of the Soviet Mind Game
     1.5 +
     1.6 +Copyright (C) 2006-2008 Damian Yerrick <tepples+lj@spamcop.net>
     1.7 +
     1.8 +This work is free software; you can redistribute it and/or modify
     1.9 +it under the terms of the GNU General Public License as published by
    1.10 +the Free Software Foundation; either version 2 of the License, or
    1.11 +(at your option) any later version.
    1.12 +
    1.13 +This program is distributed in the hope that it will be useful,
    1.14 +but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.15 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.16 +GNU General Public License for more details.
    1.17 +
    1.18 +You should have received a copy of the GNU General Public License
    1.19 +along with this program; if not, write to the Free Software
    1.20 +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    1.21 +
    1.22 +Original game concept and design by Alexey Pajitnov.
    1.23 +The Software is not sponsored or endorsed by Alexey Pajitnov, Elorg,
    1.24 +or The Tetris Company LLC.
    1.25 +
    1.26 +*/
    1.27 +
    1.28 +#include "ljreplay.h"
    1.29 +#include <stdio.h>
    1.30 +
    1.31 +#define FORMAT_VERSION 0x20080525
    1.32 +#define LAST_FORMAT_VERSION 20080420
    1.33 +#define DEBUG_OFFSETS 0
    1.34 +
    1.35 +#if DEBUG_OFFSETS
    1.36 +#include <allegro.h>
    1.37 +#endif
    1.38 +
    1.39 +struct LJReplayFrame {
    1.40 +  char length;
    1.41 +  char reserved;
    1.42 +  unsigned short keys;
    1.43 +  LJInput x;
    1.44 +};
    1.45 +
    1.46 +struct LJReplay {
    1.47 +  FILE *file;
    1.48 +};
    1.49 +
    1.50 +static void fput32(unsigned int src, FILE *dst) {
    1.51 +  fputc(src >> 24, dst);
    1.52 +  fputc(src >> 16, dst);
    1.53 +  fputc(src >> 8, dst);
    1.54 +  fputc(src, dst);
    1.55 +}
    1.56 +
    1.57 +static unsigned int fget32(FILE *src) {
    1.58 +  int c0 = fgetc(src) & 0xFF;
    1.59 +  c0 = (c0 << 8) | (fgetc(src) & 0xFF);
    1.60 +  c0 = (c0 << 8) | (fgetc(src) & 0xFF);
    1.61 +  c0 = (c0 << 8) | (fgetc(src) & 0xFF);
    1.62 +  return c0;
    1.63 +}
    1.64 +static void fput16(unsigned int src, FILE *dst) {
    1.65 +  fputc(src >> 8, dst);
    1.66 +  fputc(src, dst);
    1.67 +}
    1.68 +
    1.69 +static unsigned int fget16(FILE *src) {
    1.70 +  int c0 = fgetc(src) & 0xFF;
    1.71 +  c0 = (c0 << 8) | (fgetc(src) & 0xFF);
    1.72 +  return c0;
    1.73 +}
    1.74 +
    1.75 +static void LJField_serialize(const LJField *p, FILE *fp) {
    1.76 +  fput32(FORMAT_VERSION, fp);
    1.77 +
    1.78 +  for (int y = 0; y < LJ_PF_HT; ++y) {
    1.79 +    for (int x = 0; x < LJ_PF_WID; ++x) {
    1.80 +      fputc(p->b[y][x], fp);
    1.81 +    }
    1.82 +  }
    1.83 +  for (int y = 0; y < LJ_PF_HT; ++y) {
    1.84 +    for (int x = 0; x < LJ_PF_WID; ++x) {
    1.85 +      fputc(p->c[y][x], fp);
    1.86 +    }
    1.87 +  }
    1.88 +  fput32(p->clearedLines, fp);
    1.89 +  fput32(p->sounds, fp);
    1.90 +  fput32(p->tempRows, fp);
    1.91 +  for (int y = 0; y < 1 + LJ_NEXT_PIECES; ++y) {
    1.92 +    fputc(p->curPiece[y], fp);
    1.93 +  }
    1.94 +  for (int y = 0; y < 2 * MAX_BAG_LEN; ++y) {
    1.95 +    fputc(p->permuPiece[y], fp);
    1.96 +  }
    1.97 +  fputc(p->permuPhase, fp);
    1.98 +  for (int y = 0; y < LJ_MAX_LINES_PER_PIECE; ++y) {
    1.99 +    fput16(p->nLineClears[y], fp);
   1.100 +  }
   1.101 +  fput32(p->y, fp);
   1.102 +  fputc(p->state, fp);
   1.103 +  fputc(p->stateTime, fp);
   1.104 +  fputc(p->theta, fp);
   1.105 +  fputc(p->x, fp);
   1.106 +  fputc(p->hardDropY, fp);
   1.107 +  fputc(p->alreadyHeld, fp);
   1.108 +  fputc(p->isSpin, fp);
   1.109 +  fputc(p->nLinesThisPiece, fp);
   1.110 +  fputc(p->canRotate, fp);
   1.111 +
   1.112 +#if DEBUG_OFFSETS
   1.113 +  allegro_message("before score, offset = %u\n", (unsigned int)ftell(fp));
   1.114 +#endif
   1.115 +  fput32(p->score, fp);
   1.116 +  fput32(p->lines, fp);
   1.117 +  fput32(p->gameTime, fp);
   1.118 +  fput32(p->activeTime, fp);
   1.119 +  fput16(p->holdPiece, fp);
   1.120 +  fputc(p->chain, fp);
   1.121 +  fputc(p->garbage, fp);
   1.122 +  fputc(p->garbageX, fp);
   1.123 +  fput16(p->nPieces, fp);
   1.124 +  fput16(p->outGarbage, fp);
   1.125 +  
   1.126 +  fputc(p->gimmick, fp);
   1.127 +  fput32(p->speedState.level, fp);
   1.128 +  fput32(p->bpmCounter, fp);
   1.129 +  fput32(p->speedupCounter, fp);
   1.130 +  fput32(p->goalCount, fp);
   1.131 +  fput32(p->seed, fp);
   1.132 +  fput32(p->speed.gravity, fp);
   1.133 +  fputc(p->speedState.curve, fp);
   1.134 +  fputc(p->goalType, fp);
   1.135 +  fputc(p->speed.entryDelay, fp);
   1.136 +  fputc(p->areStyle, fp);
   1.137 +  fputc(p->lockReset, fp);
   1.138 +  fputc(p->speed.lockDelay, fp);
   1.139 +  fputc(p->speed.lineDelay, fp);
   1.140 +  fputc(p->ceiling, fp);
   1.141 +  fputc(p->enterAbove, fp);
   1.142 +  fputc(p->leftWall, fp);
   1.143 +  fputc(p->rightWall, fp);
   1.144 +  fputc(p->pieceSet, fp);
   1.145 +  fputc(p->randomizer, fp);
   1.146 +  fputc(p->rotationSystem, fp);
   1.147 +  fputc(p->garbageRandomness, fp);
   1.148 +  fputc(p->tSpinAlgo, fp);
   1.149 +  fputc(p->clearGravity, fp);
   1.150 +  fputc(p->gluing, fp);
   1.151 +  fputc(p->scoreStyle, fp);
   1.152 +  fputc(p->setLockDelay, fp);
   1.153 +  fputc(p->upwardKicks, fp);
   1.154 +  fputc(p->maxUpwardKicks, fp);
   1.155 +  fputc(p->setLineDelay, fp);
   1.156 +  fputc(p->garbageStyle, fp);
   1.157 +  fputc(p->holdStyle, fp);
   1.158 +  fputc(p->bottomBlocks, fp);
   1.159 +
   1.160 +  fput16(p->multisquares, fp);
   1.161 +  fput16(p->monosquares, fp);
   1.162 +
   1.163 +#if DEBUG_OFFSETS
   1.164 +  allegro_message("final offset = %u\n", (unsigned int)ftell(fp));
   1.165 +#endif
   1.166 +}
   1.167 +
   1.168 +static int LJField_deserialize(LJField *p, FILE *fp) {
   1.169 +  int format = fget32(fp);
   1.170 +  if (format != FORMAT_VERSION
   1.171 +      && format != LAST_FORMAT_VERSION) {
   1.172 +    return -1;
   1.173 +  }
   1.174 +
   1.175 +  for (int y = 0; y < LJ_PF_HT; ++y) {
   1.176 +    for (int x = 0; x < LJ_PF_WID; ++x) {
   1.177 +      p->b[y][x] = fgetc(fp);
   1.178 +    }
   1.179 +  }
   1.180 +  for (int y = 0; y < LJ_PF_HT; ++y) {
   1.181 +    for (int x = 0; x < LJ_PF_WID; ++x) {
   1.182 +      p->c[y][x] = fgetc(fp);
   1.183 +    }
   1.184 +  }
   1.185 +  p->clearedLines = fget32(fp);
   1.186 +  p->sounds = fget32(fp);
   1.187 +  p->tempRows = fget32(fp);
   1.188 +  for (int y = 0; y < 1 + LJ_NEXT_PIECES; ++y) {
   1.189 +    p->curPiece[y] = fgetc(fp);
   1.190 +  }
   1.191 +  for (int y = 0; y < 2 * MAX_BAG_LEN; ++y) {
   1.192 +    p->permuPiece[y] = fgetc(fp);
   1.193 +  }
   1.194 +  p->permuPhase = fgetc(fp);
   1.195 +  for (int y = 0; y < LJ_MAX_LINES_PER_PIECE; ++y) {
   1.196 +    p->nLineClears[y] = fget16(fp);
   1.197 +  }
   1.198 +  p->y = fget32(fp);
   1.199 +  p->state = fgetc(fp);
   1.200 +  p->stateTime = fgetc(fp);
   1.201 +  p->theta = fgetc(fp);
   1.202 +  p->x = fgetc(fp);
   1.203 +  p->hardDropY = fgetc(fp);
   1.204 +  p->alreadyHeld = fgetc(fp);
   1.205 +  p->isSpin = fgetc(fp);
   1.206 +  p->nLinesThisPiece = fgetc(fp);
   1.207 +  p->canRotate = fgetc(fp);
   1.208 +
   1.209 +#if DEBUG_OFFSETS
   1.210 +  allegro_message("before score, offset = %u\n", (unsigned int)ftell(fp));
   1.211 +#endif
   1.212 +  p->score = fget32(fp);
   1.213 +  p->lines = fget32(fp);
   1.214 +  p->gameTime = fget32(fp);
   1.215 +  p->activeTime = fget32(fp);
   1.216 +  p->holdPiece = fget16(fp);
   1.217 +  p->chain = fgetc(fp);
   1.218 +  p->garbage = fgetc(fp);
   1.219 +  p->garbageX = fgetc(fp);
   1.220 +  p->nPieces = fget16(fp);
   1.221 +  p->outGarbage = fget16(fp);
   1.222 +  
   1.223 +  p->gimmick = fgetc(fp);
   1.224 +  p->speedState.level = fget32(fp);
   1.225 +  p->bpmCounter = fget32(fp);
   1.226 +  p->speedupCounter = fget32(fp);
   1.227 +  p->goalCount = fget32(fp);
   1.228 +  p->seed = fget32(fp);
   1.229 +  p->speed.gravity = fget32(fp);
   1.230 +  p->speedState.curve = fgetc(fp);
   1.231 +  p->goalType = fgetc(fp);
   1.232 +  p->speed.entryDelay = fgetc(fp);
   1.233 +  p->areStyle = fgetc(fp);
   1.234 +  p->lockReset = fgetc(fp);
   1.235 +  p->speed.lockDelay = fgetc(fp);
   1.236 +  p->speed.lineDelay = fgetc(fp);
   1.237 +  p->ceiling = fgetc(fp);
   1.238 +  p->enterAbove = fgetc(fp);
   1.239 +  p->leftWall = fgetc(fp);
   1.240 +  p->rightWall = fgetc(fp);
   1.241 +  p->pieceSet = fgetc(fp);
   1.242 +  p->randomizer = fgetc(fp);
   1.243 +  p->rotationSystem = fgetc(fp);
   1.244 +  p->garbageRandomness = fgetc(fp);
   1.245 +  p->tSpinAlgo = fgetc(fp);
   1.246 +  p->clearGravity = fgetc(fp);
   1.247 +  p->gluing = fgetc(fp);
   1.248 +  p->scoreStyle = fgetc(fp);
   1.249 +  p->setLockDelay = fgetc(fp);
   1.250 +  p->upwardKicks = fgetc(fp);
   1.251 +  p->maxUpwardKicks = fgetc(fp);
   1.252 +  p->setLineDelay = fgetc(fp);
   1.253 +  p->garbageStyle = fgetc(fp);
   1.254 +  p->holdStyle = fgetc(fp);
   1.255 +  p->bottomBlocks = fgetc(fp);
   1.256 +
   1.257 +  if (format == FORMAT_VERSION) {
   1.258 +    p->multisquares = fget16(fp);
   1.259 +    p->monosquares = fget16(fp);
   1.260 +  }
   1.261 +#if DEBUG_OFFSETS
   1.262 +  allegro_message("final offset = %u\n", (unsigned int)ftell(fp));
   1.263 +#endif
   1.264 +  return 0;
   1.265 +}
   1.266 +
   1.267 +
   1.268 +LJReplay *newReplay(const char *filename, LJField *p) {
   1.269 +  LJReplay *r = malloc(sizeof(struct LJReplay));
   1.270 +  
   1.271 +  if (!r) {
   1.272 +    return NULL;
   1.273 +  }
   1.274 +  r->file = fopen(filename, "wb");
   1.275 +  if (!r->file) {
   1.276 +    free(r);
   1.277 +    return NULL;
   1.278 +  }
   1.279 +  LJField_serialize(p, r->file);
   1.280 +  return r;
   1.281 +}
   1.282 +
   1.283 +void replayRecord(LJReplay *r, LJBits keys, const LJInput *in) {
   1.284 +  fputc(0, r->file);
   1.285 +  fputc(0, r->file);
   1.286 +  fputc(keys >> 8, r->file);
   1.287 +  fputc(keys, r->file);
   1.288 +  fputc(in->rotation, r->file);
   1.289 +  fputc(in->movement, r->file);
   1.290 +  fputc(in->gravity, r->file);
   1.291 +  fputc(in->other, r->file);
   1.292 +}
   1.293 +
   1.294 +LJReplay *openReplay(const char *filename, LJField *p) {
   1.295 +  LJReplay *r = malloc(sizeof(struct LJReplay));
   1.296 +  
   1.297 +  if (!r) {
   1.298 +    return NULL;
   1.299 +  }
   1.300 +  r->file = fopen(filename, "rb");
   1.301 +  if (!r->file) {
   1.302 +    free(r);
   1.303 +    return NULL;
   1.304 +  }
   1.305 +
   1.306 +  /* This deserialization is still NOT robust. */
   1.307 +  if (LJField_deserialize(p, r->file) < 0) {
   1.308 +    fclose(r->file);
   1.309 +    free(r);
   1.310 +    return 0;
   1.311 +  }
   1.312 +  return r;
   1.313 +}
   1.314 +
   1.315 +int getReplayFrame(LJReplay *r, LJInput *d) {
   1.316 +  fgetc(r->file);
   1.317 +  fgetc(r->file);
   1.318 +  int keys = fgetc(r->file);
   1.319 +  
   1.320 +  if (keys == EOF) {
   1.321 +    return LJREPLAY_EOF;
   1.322 +  }
   1.323 +  keys = (keys << 8 & 0xFF) | (fgetc(r->file) & 0xFF);
   1.324 +  d->rotation = fgetc(r->file);
   1.325 +  d->movement = fgetc(r->file);
   1.326 +  d->gravity = fgetc(r->file);
   1.327 +  d->other = fgetc(r->file);
   1.328 +  return keys;
   1.329 +}
   1.330 +
   1.331 +void replayClose(LJReplay *r) {
   1.332 +  if (r) {
   1.333 +    if (r->file) {
   1.334 +      fclose(r->file);
   1.335 +    }
   1.336 +    free(r);
   1.337 +  }
   1.338 +}