001package org.anarres.lzo; 002 003import java.util.Arrays; 004 005public class LzoDecompressor1z extends AbstractLzoDecompressor { 006 007 public LzoDecompressor1z() { 008 super(LzoAlgorithm.LZO1Z); 009 } 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045// In Java, all of these are array indices. 046 047 048 049 050 051 052 053 054 055 056 057 058// for lzo1y.h and lzo1z.h 059 060 061// Unfortunately clobbered by config1x.h etc 062// #define LZO_DETERMINISTIC (1) 063 064 065 066 067// NOT a macro because liblzo2 assumes that if UA_GET32 is a macro, 068// then it is faster than byte-array accesses, which it is not - 069// or, if it is, hotspot will deal with it. 070private static int UA_GET32(byte[] in, int in_ptr) { 071 return (((in[in_ptr]) & 0xff) << 24) | (((in[in_ptr + 1]) & 0xff) << 16) | (((in[in_ptr + 2]) & 0xff) << 8) | ((in[in_ptr + 3]) & 0xff); 072} 073 074 075/* config1z.h -- configuration for the LZO1Z algorithm 076 077 This file is part of the LZO real-time data compression library. 078 079 Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer 080 Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer 081 Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer 082 Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer 083 Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer 084 Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer 085 Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer 086 Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer 087 Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer 088 Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer 089 Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer 090 Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer 091 Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer 092 Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer 093 Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer 094 Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer 095 All Rights Reserved. 096 097 The LZO library is free software; you can redistribute it and/or 098 modify it under the terms of the GNU General Public License as 099 published by the Free Software Foundation; either version 2 of 100 the License, or (at your option) any later version. 101 102 The LZO library is distributed in the hope that it will be useful, 103 but WITHOUT ANY WARRANTY; without even the implied warranty of 104 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 105 GNU General Public License for more details. 106 107 You should have received a copy of the GNU General Public License 108 along with the LZO library; see the file COPYING. 109 If not, write to the Free Software Foundation, Inc., 110 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 111 112 Markus F.X.J. Oberhumer 113 <markus@oberhumer.com> 114 http://www.oberhumer.com/opensource/lzo/ 115 */ 116 117 118/* WARNING: this file should *not* be used by applications. It is 119 part of the implementation of the library and is subject 120 to change. 121 */ 122 123 124 125 126 127 128 129 130 131 132/* lzo_conf.h -- main internal configuration file for the the LZO library 133 134 This file is part of the LZO real-time data compression library. 135 136 Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer 137 Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer 138 Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer 139 Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer 140 Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer 141 Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer 142 Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer 143 Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer 144 Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer 145 Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer 146 Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer 147 Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer 148 Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer 149 Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer 150 Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer 151 Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer 152 All Rights Reserved. 153 154 The LZO library is free software; you can redistribute it and/or 155 modify it under the terms of the GNU General Public License as 156 published by the Free Software Foundation; either version 2 of 157 the License, or (at your option) any later version. 158 159 The LZO library is distributed in the hope that it will be useful, 160 but WITHOUT ANY WARRANTY; without even the implied warranty of 161 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 162 GNU General Public License for more details. 163 164 You should have received a copy of the GNU General Public License 165 along with the LZO library; see the file COPYING. 166 If not, write to the Free Software Foundation, Inc., 167 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 168 169 Markus F.X.J. Oberhumer 170 <markus@oberhumer.com> 171 http://www.oberhumer.com/opensource/lzo/ 172 */ 173 174 175/* WARNING: this file should *not* be used by applications. It is 176 part of the implementation of the library and is subject 177 to change. 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// pragmas 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/* ACC --- Automatic Compiler Configuration 272 273 This file is part of the LZO real-time data compression library. 274 275 Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer 276 Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer 277 Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer 278 Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer 279 Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer 280 Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer 281 Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer 282 Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer 283 Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer 284 Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer 285 Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer 286 Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer 287 Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer 288 Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer 289 Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer 290 Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer 291 All Rights Reserved. 292 293 The LZO library is free software; you can redistribute it and/or 294 modify it under the terms of the GNU General Public License as 295 published by the Free Software Foundation; either version 2 of 296 the License, or (at your option) any later version. 297 298 The LZO library is distributed in the hope that it will be useful, 299 but WITHOUT ANY WARRANTY; without even the implied warranty of 300 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 301 GNU General Public License for more details. 302 303 You should have received a copy of the GNU General Public License 304 along with the LZO library; see the file COPYING. 305 If not, write to the Free Software Foundation, Inc., 306 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 307 308 Markus F.X.J. Oberhumer 309 <markus@oberhumer.com> 310 http://www.oberhumer.com/opensource/lzo/ 311 */ 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 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7032 7033 7034 7035 7036 7037 7038 7039 7040 7041 7042 7043 7044 7045 7046 7047 7048 7049 7050 7051 7052 7053 7054 7055 7056 7057 7058 7059 7060 7061 7062 7063 7064 7065 7066 7067 7068 7069 7070 7071 7072 7073 7074 7075 7076 7077 7078 7079 7080 7081 7082 7083 7084 7085 7086 7087 7088 7089 7090 7091 7092 7093 7094 7095 7096 7097 7098 7099 7100 7101 7102 7103 7104 7105 7106 7107 7108 7109 7110 7111 7112 7113 7114 7115 7116 7117 7118 7119 7120 7121 7122 7123 7124 7125 7126 7127 7128 7129 7130 7131 7132 7133 7134 7135 7136 7137 7138 7139 7140 7141 7142 7143 7144 7145 7146 7147 7148 7149 7150 7151 7152 7153 7154 7155 7156 7157 7158 7159 7160 7161 7162 7163 7164 7165 7166 7167 7168 7169 7170 7171 7172 7173 7174 7175 7176 7177 7178 7179 7180 7181 7182 7183 7184 7185 7186 7187 7188 7189 7190 7191 7192 7193 7194 7195/* vim:set ts=4 et: */ 7196 7197 7198 7199 7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 7218 7219 7220 7221 7222 7223 7224 7225 7226 7227 7228 7229 7230 7231 7232 7233 7234 7235 7236 7237 7238 7239 7240//Java # define assert(e) ((void)0) 7241 7242 7243 7244 7245 7246 7247 7248 7249 7250 7251 7252 7253 7254 7255 7256 7257 7258 7259 7260 7261 7262 7263 7264 7265 7266 7267 7268 7269 7270 7271 7272 7273 7274 7275 7276 7277 7278/*********************************************************************** 7279// 7280************************************************************************/ 7281 7282 7283 7284 7285 7286 7287 7288 7289 7290 7291 7292 7293 7294 7295 7296 7297/* this always fits into 16 bits */ 7298//Java #define LZO_SIZE(bits) (1u << (bits)) 7299 7300 7301 7302//Java #define LZO_LSIZE(bits) (1ul << (bits)) 7303 7304 7305 7306 7307 7308 7309 7310 7311 7312 7313 7314 7315 7316 7317 7318 7319 7320/*********************************************************************** 7321// compiler and architecture specific stuff 7322************************************************************************/ 7323 7324/* Some defines that indicate if memory can be accessed at unaligned 7325 * memory addresses. You should also test that this is actually faster 7326 * even if it is allowed by your system. 7327 */ 7328 7329 7330 7331 7332 7333 7334 7335 7336 7337 7338 7339 7340 7341 7342 7343 7344 7345 7346 7347 7348 7349 7350 7351 7352 7353 7354 7355 7356 7357 7358 7359 7360 7361 7362 7363 7364 7365 7366 7367 7368 7369 7370 7371 7372 7373 7374 7375 7376 7377 7378 7379 7380 7381 7382 7383 7384 7385 7386 7387 7388 7389 7390 7391 7392 7393 7394 7395/* Fast memcpy that copies multiples of 8 byte chunks. 7396 * len is the number of bytes. 7397 * note: all parameters must be lvalues, len >= 8 7398 * dest and src advance, len is undefined afterwards 7399 */ 7400 7401 7402 7403 7404 7405 7406 7407 7408 7409 7410 7411/*********************************************************************** 7412// some globals 7413************************************************************************/ 7414 7415//Java LZO_EXTERN(const lzo_bytep) lzo_copyright(void); 7416 7417 7418/*********************************************************************** 7419// 7420************************************************************************/ 7421 7422//Java #include "lzo_ptr.h" 7423 7424 7425/* Generate compressed data in a deterministic way. 7426 * This is fully portable, and compression can be faster as well. 7427 * A reason NOT to be deterministic is when the block size is 7428 * very small (e.g. 8kB) or the dictionary is big, because 7429 * then the initialization of the dictionary becomes a relevant 7430 * magnitude for compression speed. 7431 */ 7432 7433 7434 7435 7436 7437 7438 7439 7440 7441 7442 7443 7444 7445 7446 7447 7448 7449 7450 7451//Java # define lzo_dict_t lzo_uint 7452//Java # define lzo_dict_p lzo_dict_t __LZO_MMODEL * 7453 7454 7455 7456 7457 7458 7459 7460/* 7461vi:ts=4:et 7462*/ 7463 7464 7465/* Memory required for the wrkmem parameter. 7466 * When the required size is 0, you can also pass a NULL pointer. 7467 */ 7468 7469 7470 7471 7472 7473 7474 7475 7476/* config1x.h -- configuration for the LZO1X algorithm 7477 7478 This file is part of the LZO real-time data compression library. 7479 7480 Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer 7481 Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer 7482 Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer 7483 Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer 7484 Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer 7485 Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer 7486 Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer 7487 Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer 7488 Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer 7489 Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer 7490 Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer 7491 Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer 7492 Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer 7493 Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer 7494 Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer 7495 Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer 7496 All Rights Reserved. 7497 7498 The LZO library is free software; you can redistribute it and/or 7499 modify it under the terms of the GNU General Public License as 7500 published by the Free Software Foundation; either version 2 of 7501 the License, or (at your option) any later version. 7502 7503 The LZO library is distributed in the hope that it will be useful, 7504 but WITHOUT ANY WARRANTY; without even the implied warranty of 7505 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 7506 GNU General Public License for more details. 7507 7508 You should have received a copy of the GNU General Public License 7509 along with the LZO library; see the file COPYING. 7510 If not, write to the Free Software Foundation, Inc., 7511 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 7512 7513 Markus F.X.J. Oberhumer 7514 <markus@oberhumer.com> 7515 http://www.oberhumer.com/opensource/lzo/ 7516 */ 7517 7518 7519/* WARNING: this file should *not* be used by applications. It is 7520 part of the implementation of the library and is subject 7521 to change. 7522 */ 7523 7524 7525 7526 7527 7528 7529 7530 7531 7532 7533/* lzo_conf.h -- main internal configuration file for the the LZO library 7534 7535 This file is part of the LZO real-time data compression library. 7536 7537 Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer 7538 Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer 7539 Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer 7540 Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer 7541 Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer 7542 Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer 7543 Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer 7544 Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer 7545 Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer 7546 Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer 7547 Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer 7548 Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer 7549 Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer 7550 Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer 7551 Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer 7552 Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer 7553 All Rights Reserved. 7554 7555 The LZO library is free software; you can redistribute it and/or 7556 modify it under the terms of the GNU General Public License as 7557 published by the Free Software Foundation; either version 2 of 7558 the License, or (at your option) any later version. 7559 7560 The LZO library is distributed in the hope that it will be useful, 7561 but WITHOUT ANY WARRANTY; without even the implied warranty of 7562 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 7563 GNU General Public License for more details. 7564 7565 You should have received a copy of the GNU General Public License 7566 along with the LZO library; see the file COPYING. 7567 If not, write to the Free Software Foundation, Inc., 7568 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 7569 7570 Markus F.X.J. Oberhumer 7571 <markus@oberhumer.com> 7572 http://www.oberhumer.com/opensource/lzo/ 7573 */ 7574 7575 7576/* WARNING: this file should *not* be used by applications. It is 7577 part of the implementation of the library and is subject 7578 to change. 7579 */ 7580 7581 7582 7583 7584 7585 7586 7587 7588 7589 7590 7591 7592 7593 7594 7595 7596 7597 7598 7599 7600 7601 7602 7603 7604 7605 7606 7607 7608 7609 7610 7611 7612 7613 7614 7615 7616 7617 7618 7619 7620 7621 7622 7623 7624 7625 7626 7627 7628 7629 7630 7631 7632 7633 7634 7635 7636 7637 7638 7639 7640 7641 7642 7643 7644 7645 7646 7647 7648 7649 7650 7651 7652 7653 7654 7655 7656 7657 7658 7659 7660 7661 7662 7663 7664 7665 7666 7667 7668 7669 7670 7671 7672 7673 7674 7675 7676 7677 7678 7679 7680 7681 7682 7683 7684 7685 7686 7687 7688 7689 7690 7691 7692 7693 7694 7695 7696 7697 7698 7699 7700 7701 7702 7703 7704 7705 7706 7707 7708 7709 7710 7711 7712 7713 7714 7715 7716 7717 7718 7719 7720 7721 7722 7723 7724 7725 7726 7727 7728 7729 7730 7731 7732 7733 7734 7735 7736 7737 7738 7739 7740 7741 7742 7743 7744 7745 7746 7747 7748 7749 7750 7751 7752 7753 7754 7755 7756 7757 7758 7759 7760 7761 7762 7763 7764 7765 7766 7767 7768 7769 7770 7771 7772 7773 7774 7775 7776 7777 7778 7779 7780 7781 7782 7783 7784 7785 7786 7787 7788 7789 7790 7791 7792 7793 7794 7795 7796 7797 7798 7799 7800 7801 7802 7803 7804 7805 7806 7807 7808 7809 7810 7811 7812 7813 7814 7815 7816 7817 7818 7819 7820 7821 7822 7823 7824 7825 7826 7827 7828 7829 7830 7831 7832 7833 7834 7835 7836 7837 7838 7839 7840 7841 7842 7843 7844 7845 7846 7847 7848 7849 7850 7851 7852 7853 7854 7855 7856 7857 7858 7859 7860 7861 7862 7863 7864 7865 7866 7867 7868 7869 7870 7871 7872 7873 7874 7875 7876 7877 7878 7879 7880 7881 7882 7883 7884 7885 7886 7887 7888 7889 7890 7891 7892 7893 7894 7895 7896 7897 7898 7899 7900 7901 7902 7903 7904 7905 7906 7907 7908 7909 7910 7911 7912 7913 7914 7915 7916 7917 7918 7919 7920 7921 7922 7923 7924 7925 7926 7927 7928/* 7929vi:ts=4:et 7930*/ 7931 7932 7933 7934/* Memory required for the wrkmem parameter. 7935 * When the required size is 0, you can also pass a NULL pointer. 7936 */ 7937 7938 7939 7940 7941 7942 7943 7944 7945/*********************************************************************** 7946// 7947************************************************************************/ 7948 7949 7950 7951 7952 7953 7954 7955 7956 7957 7958 7959 7960 7961 7962 7963 7964 7965 7966 7967 7968 7969 7970 7971 7972 7973 7974 7975 7976 7977 7978 7979 7980/*********************************************************************** 7981// 7982************************************************************************/ 7983 7984 7985 7986 7987 7988 7989 7990 7991 7992 7993 7994 7995 7996 7997 7998 7999 8000 8001 8002/* 8003vi:ts=4:et 8004*/ 8005 8006 8007 8008 8009/* 8010vi:ts=4:et 8011*/ 8012 8013 8014 8015 8016 8017 8018/* lzo1x_d.ch -- implementation of the LZO1X decompression algorithm 8019 8020 This file is part of the LZO real-time data compression library. 8021 8022 Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer 8023 Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer 8024 Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer 8025 Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer 8026 Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer 8027 Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer 8028 Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer 8029 Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer 8030 Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer 8031 Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer 8032 Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer 8033 Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer 8034 Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer 8035 Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer 8036 Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer 8037 Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer 8038 All Rights Reserved. 8039 8040 The LZO library is free software; you can redistribute it and/or 8041 modify it under the terms of the GNU General Public License as 8042 published by the Free Software Foundation; either version 2 of 8043 the License, or (at your option) any later version. 8044 8045 The LZO library is distributed in the hope that it will be useful, 8046 but WITHOUT ANY WARRANTY; without even the implied warranty of 8047 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 8048 GNU General Public License for more details. 8049 8050 You should have received a copy of the GNU General Public License 8051 along with the LZO library; see the file COPYING. 8052 If not, write to the Free Software Foundation, Inc., 8053 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 8054 8055 Markus F.X.J. Oberhumer 8056 <markus@oberhumer.com> 8057 http://www.oberhumer.com/opensource/lzo/ 8058 */ 8059 8060 8061// Java addition: { 8062private static final int init = 0; 8063private static final int copy_match = 1; 8064private static final int eof_found = 2; 8065private static final int first_literal_run = 3; 8066private static final int match = 4; 8067private static final int match_done = 5; 8068private static final int match_next = 6; 8069private static final int input_overrun = 7; 8070private static final int output_overrun = 8; 8071private static final int lookbehind_overrun = 9; 8072// End Java addition: } 8073 8074 8075/* lzo1_d.ch -- common decompression stuff 8076 8077 This file is part of the LZO real-time data compression library. 8078 8079 Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer 8080 Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer 8081 Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer 8082 Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer 8083 Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer 8084 Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer 8085 Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer 8086 Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer 8087 Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer 8088 Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer 8089 Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer 8090 Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer 8091 Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer 8092 Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer 8093 Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer 8094 Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer 8095 All Rights Reserved. 8096 8097 The LZO library is free software; you can redistribute it and/or 8098 modify it under the terms of the GNU General Public License as 8099 published by the Free Software Foundation; either version 2 of 8100 the License, or (at your option) any later version. 8101 8102 The LZO library is distributed in the hope that it will be useful, 8103 but WITHOUT ANY WARRANTY; without even the implied warranty of 8104 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 8105 GNU General Public License for more details. 8106 8107 You should have received a copy of the GNU General Public License 8108 along with the LZO library; see the file COPYING. 8109 If not, write to the Free Software Foundation, Inc., 8110 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 8111 8112 Markus F.X.J. Oberhumer 8113 <markus@oberhumer.com> 8114 http://www.oberhumer.com/opensource/lzo/ 8115 */ 8116 8117 8118 8119 8120 8121 8122 8123 8124 8125 8126 8127 8128 8129 8130 8131 8132/*********************************************************************** 8133// Overrun detection is internally handled by these macros: 8134// 8135// TEST_IP test input overrun at loop begin 8136// NEED_IP test input overrun at every input byte 8137// 8138// TEST_OP test output overrun at loop begin 8139// NEED_OP test output overrun at every output byte 8140// 8141// TEST_LB test match position 8142// 8143// The fastest decompressor results when testing for no overruns 8144// and using LZO_EOF_CODE. 8145************************************************************************/ 8146 8147 8148 8149 8150 8151 8152 8153 8154 8155 8156 8157 8158 8159 8160 8161 8162 8163 8164 8165 8166 8167 8168 8169 8170 8171 8172 8173 8174 8175 8176 8177 8178 8179 8180 8181 8182 8183 8184 8185 8186 8187 8188 8189 8190 8191 8192 8193 8194 8195 8196 8197 8198 8199 8200 8201 8202 8203 8204 8205 8206 8207 8208 8209 8210 8211 8212 8213 8214 8215 8216 8217 8218 8219 8220 8221 8222 8223 8224 8225 8226 8227 8228 8229/* 8230vi:ts=4:et 8231*/ 8232 8233 8234 8235/*********************************************************************** 8236// decompress a block of data. 8237************************************************************************/ 8238 8239 8240public static int 8241decompress ( byte[] in, int in_base , int in_len, 8242 byte[] out, int out_base, lzo_uintp out_len, 8243 Object wrkmem ) 8244 8245{ 8246 //Java register lzo_bytep op; 8247 int in_ptr = in_base; 8248 //Java register const lzo_bytep ip; 8249 int out_ptr = out_base; 8250 int t = Integer.MIN_VALUE; 8251 8252 8253 8254 8255 //Java: lzo_bytep const op_end = out + *out_len; 8256 //Java: m_pos is always a pointer into op. 8257 int m_pos = Integer.MIN_VALUE; 8258 8259 8260 int ip_end = in_ptr + in_len; 8261 8262 8263 8264 8265 int last_m_off = 0; 8266 8267 8268 ; 8269 8270 int state = init;; 8271 8272GOTO_0: { // Java-goto 8273 8274 8275 8276 8277 8278 8279 8280 8281 8282 8283 8284 8285 8286 8287 8288 8289 8290 8291 //Java *out_len = 0; 8292 out_len.value = 0; 8293 8294 //Java op = out; 8295 //Java ip = in; 8296 8297 //Java if (*ip > 17) 8298 if (((in[in_ptr]) & 0xff) > 17) 8299 { 8300 //Java t = *ip++ - 17; 8301 t = ((in[in_ptr++]) & 0xff) - 17; 8302 if (t < 4) 8303 //Java goto match_next; 8304 { state = match_next; break GOTO_0; } 8305 assert(t > 0):"Assertion failed: " + "t > 0"; ; ; 8306 //Java do *op++ = *ip++ while (--t > 0); 8307 // System.arraycopy(in, in_ptr, out, out_ptr, t); 8308 // in_ptr += t; 8309 // out_ptr += t; 8310 do out[out_ptr++] = in[in_ptr++]; while (--t > 0); 8311 //Java goto first_literal_run; 8312 { state = first_literal_run; break GOTO_0; } 8313 } 8314 8315} // GOTO_0 // Java-goto 8316 8317GOTO_LOOP_OUTER: 8318 while (true && true) 8319 { 8320 ; 8321GOTO_PRE: for (;;) { switch (state) { case init: 8322 8323 //Java t = *ip++; 8324 t = ((in[in_ptr++]) & 0xff); 8325 if (t >= 16) 8326 //Java goto match; 8327 { state = match; break GOTO_PRE; } 8328 ; 8329 /* a literal run */ 8330 if (t == 0) 8331 { 8332 ; 8333 //Java while (*ip == 0) 8334 while (in[in_ptr] == 0) 8335 { 8336 t += 255; 8337 //Java ip++; 8338 in_ptr++; 8339 ; 8340 } 8341 //Java t += 15 + *ip++; 8342 t += 15 + ((in[in_ptr++]) & 0xff); 8343 } 8344 /* copy literals */ 8345 assert(t > 0):"Assertion failed: " + "t > 0"; ; ; 8346 8347 8348 8349 8350 8351 8352 8353 8354 8355 8356 8357 8358 8359 8360 8361 8362 8363 8364 8365 8366 8367 8368 8369 8370 8371 8372 8373 8374 8375 8376 8377 8378 8379 8380 8381 8382 8383 8384 8385 8386 8387 8388 8389 { 8390 //Java *op++ = *ip++; *op++ = *ip++; *op++ = *ip++; 8391 //Java do *op++ = *ip++; while (--t > 0); 8392 t += 3; 8393 // System.arraycopy(in, in_ptr, out, out_ptr, t); 8394 // in_ptr += t; 8395 // out_ptr += t; 8396 do out[out_ptr++] = in[in_ptr++]; while (--t > 0); 8397 } 8398 8399 8400 8401case first_literal_run: 8402 8403 8404 //Java t = *ip++; 8405 t = ((in[in_ptr++]) & 0xff); 8406 ; 8407 if (t >= 16) 8408 { state = match; break GOTO_PRE; } 8409 8410 8411 8412 8413 8414 8415 8416 8417 8418 8419 8420 //Java t = (1 + M2_MAX_OFFSET) + (t << 6) + (*ip++ >> 2); 8421 t = (1 + 0x0700) + (t << 6) + (((in[in_ptr++]) & 0xff) >> 2); 8422 //Java m_pos = op - t; 8423 m_pos = out_ptr - t; 8424 last_m_off = t; 8425 8426 8427 8428 8429 8430 8431 8432 ; 8433 ; ; 8434 //Java *op++ = *m_pos++; *op++ = *m_pos++; *op++ = *m_pos; 8435 out[out_ptr++] = out[m_pos++]; 8436 out[out_ptr++] = out[m_pos++]; 8437 out[out_ptr++] = out[m_pos]; 8438 8439 //Java goto match_done; 8440 { state = match_done; break GOTO_PRE; } 8441 8442case match: 8443case match_next: 8444 break GOTO_PRE; 8445case input_overrun: 8446case output_overrun: 8447case lookbehind_overrun: 8448 break GOTO_LOOP_OUTER; 8449default: throw new IllegalStateException("Illegal state " + state); } } 8450 8451// Enter the inner loop: 8452 8453GOTO_LOOP_INNER: 8454 /* handle matches */ 8455 do { 8456 ; 8457GOTO_INNER: for (;;) { switch (state) { case init: 8458case match: 8459 if (t >= 64) /* a M2 match */ 8460 { 8461 8462 8463 8464 8465 8466 8467 8468 8469 8470 8471 8472 8473 8474 8475 8476 8477 8478 8479 8480 8481 8482 8483 8484 8485 8486 8487 8488 8489 8490 8491 8492 8493 8494 8495 { 8496 int off = t & 0x1f; 8497 //Java m_pos = op; 8498 m_pos = out_ptr; 8499 if (off >= 0x1c) 8500 { 8501 assert(last_m_off > 0):"Assertion failed: " + "last_m_off > 0"; 8502 m_pos -= last_m_off; 8503 } 8504 else 8505 { 8506 //Java off = 1 + (off << 6) + (*ip++ >> 2); 8507 off = 1 + (off << 6) + (((in[in_ptr++]) & 0xff) >> 2); 8508 m_pos -= off; 8509 last_m_off = off; 8510 } 8511 } 8512 t = (t >> 5) - 1; 8513 8514 ; 8515 ; assert(t > 0):"Assertion failed: " + "t > 0"; ; 8516 //Java goto copy_match; 8517 { state = copy_match; continue GOTO_INNER; } 8518 8519 } 8520 else if (t >= 32) /* a M3 match */ 8521 { 8522 t &= 31; 8523 if (t == 0) 8524 { 8525 ; 8526 //Java while (*ip == 0) 8527 while (in[in_ptr] == 0) 8528 { 8529 t += 255; 8530 //Java ip++; 8531 in_ptr++; 8532 ; 8533 } 8534 //Java t += 31 + *ip++; 8535 t += 31 + ((in[in_ptr++]) & 0xff); 8536 } 8537 8538 8539 8540 8541 8542 8543 8544 8545 8546 { 8547 // lzo_uint off = 1 + (ip[0] << 6) + (ip[1] >> 2); 8548 int off = 1 + (((in[in_ptr]) & 0xff) << 6) + (((in[in_ptr + 1]) & 0xff) >> 2); 8549 //Java m_pos = op - off; 8550 m_pos = out_ptr - off; 8551 last_m_off = off; 8552 } 8553 8554 8555 8556 8557 8558 8559 8560 8561 8562 8563 8564 //Java ip += 2; 8565 in_ptr += 2; 8566 ; 8567 } 8568 else if (t >= 16) /* a M4 match */ 8569 { 8570 8571 8572 8573 //Java m_pos = op; 8574 m_pos = out_ptr; 8575 m_pos -= (t & 8) << 11; 8576 8577 t &= 7; 8578 if (t == 0) 8579 { 8580 ; 8581 //Java while (*ip == 0) 8582 while (in[in_ptr] == 0) 8583 { 8584 t += 255; 8585 //Java ip++; 8586 in_ptr++; 8587 ; 8588 } 8589 //Java t += 7 + *ip++; 8590 t += 7 + ((in[in_ptr++]) & 0xff); 8591 } 8592 8593 8594 8595 8596 8597 8598 8599 8600 8601 8602 8603 8604 8605 8606 8607 8608 8609 8610 8611 //Java m_pos -= (ip[0] << 6) + (ip[1] >> 2); 8612 m_pos -= (((in[in_ptr]) & 0xff) << 6) + (((in[in_ptr + 1]) & 0xff) >> 2); 8613 8614 8615 8616 8617 8618 8619 //Java ip += 2; 8620 in_ptr += 2; 8621 //Java if (m_pos == op) 8622 if (m_pos == out_ptr) 8623 //Java goto eof_found; 8624 { state = eof_found; break GOTO_LOOP_OUTER; } 8625 m_pos -= 0x4000; 8626 8627 //Java last_m_off = pd((const lzo_bytep)op, m_pos); 8628 last_m_off = ((out_ptr) - (m_pos)); 8629 8630 8631 } 8632 else /* a M1 match */ 8633 { 8634 8635 8636 8637 8638 8639 8640 8641 8642 8643 8644 8645 //Java t = 1 + (t << 6) + (*ip++ >> 2); 8646 t = 1 + (t << 6) + (((in[in_ptr++]) & 0xff) >> 2); 8647 //Java m_pos = op - t; 8648 m_pos = out_ptr - t; 8649 last_m_off = t; 8650 8651 8652 8653 8654 8655 8656 8657 ; 8658 ; ; 8659 //Java *op++ = *m_pos++; *op++ = *m_pos; 8660 out[out_ptr++] = out[m_pos++]; 8661 out[out_ptr++] = out[m_pos]; 8662 8663 //Java goto match_done; 8664 { state = match_done; continue GOTO_INNER; } 8665 } 8666 8667 /* copy match */ 8668 8669 8670 8671 8672 8673 8674 8675 ; 8676 ; assert(t > 0):"Assertion failed: " + "t > 0"; ; 8677 8678 8679 8680 8681 8682 8683 8684 8685 8686 8687 8688 8689 8690 8691 8692 8693 8694 8695 8696 8697 8698 8699 8700 8701 8702 8703 8704 8705 8706 8707 8708 8709 8710 8711 8712 8713 8714 8715 8716 8717case copy_match: 8718 { 8719 //Java *op++ = *m_pos++; *op++ = *m_pos++; 8720 //Java do *op++ = *m_pos++; while (--t > 0); 8721 t += 2; 8722 do out[out_ptr++] = out[m_pos++]; while (--t > 0); 8723 } 8724 8725 8726 8727case match_done: 8728 8729 //Java t = ip[-1] & 3; 8730 t = in[in_ptr -1] & 3; 8731 8732 8733 8734 8735 if (t == 0) 8736 break GOTO_LOOP_INNER; 8737 8738 /* copy literals */ 8739case match_next: 8740 assert(t > 0):"Assertion failed: " + "t > 0"; assert(t < 4):"Assertion failed: " + "t < 4"; ; ; 8741//Java #if 0 8742 8743 //Java do *op++ = *ip++; while (--t > 0); 8744 do out[out_ptr++] = in[in_ptr++]; while (--t > 0); 8745 8746 8747 8748 8749 //Java t = *ip++; 8750 t = ((in[in_ptr++]) & 0xff); 8751break; default: throw new IllegalStateException("Illegal state " + state); } break; } 8752 state = init; 8753 } while (true && true); 8754// GOTO_LOOP_INNER 8755 8756 state = init; 8757 } 8758// GOTO_LOOP_OUTER 8759 8760GOTO_3: for (;;) { switch (state) { case init: 8761 8762 8763 8764 8765 8766 8767 8768case eof_found: 8769 assert(t == 1):"Assertion failed: " + "t == 1"; 8770 //Java *out_len = pd(op, out); 8771 out_len.value = out_ptr - out_base; 8772 //Java return (ip == ip_end ? LZO_E_OK : 8773 //Java (ip < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN)); 8774 return (in_ptr == ip_end ? LZO_E_OK : 8775 (in_ptr < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN)); 8776 8777 8778 8779 8780 8781 8782 8783 8784 8785 8786 8787 8788 8789 8790 8791 8792 8793 8794 8795 8796 8797 8798 8799default: throw new IllegalStateException("Illegal state " + state); } } 8800} 8801 8802 8803/* 8804vi:ts=4:et 8805*/ 8806 8807 8808 @Override 8809 public int decompress(byte[] in, int in_base, int in_len, 8810 byte[] out, int out_base, lzo_uintp out_len) { 8811 return decompress(in, in_base, in_len, 8812 out, out_base, out_len, null); 8813 } 8814}