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levels.h revision 1.1 
      1 /*
      2  * Copyright (c) Meta Platforms, Inc. and affiliates.
      3  * All rights reserved.
      4  *
      5  * This source code is licensed under both the BSD-style license (found in the
      6  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
      7  * in the COPYING file in the root directory of this source tree).
      8  * You may select, at your option, one of the above-listed licenses.
      9  */
     10 
     11 #ifndef LEVEL
     12 # error LEVEL(x) must be defined
     13 #endif
     14 #ifndef FAST_LEVEL
     15 # error FAST_LEVEL(x) must be defined
     16 #endif
     17 #ifndef ROW_LEVEL
     18 # error ROW_LEVEL(x, y) must be defined
     19 #endif
     20 
     21 /**
     22  * The levels are chosen to trigger every strategy in every source size,
     23  * as well as some fast levels and the default level.
     24  * If you change the compression levels, you should probably update these.
     25  */
     26 
     27 FAST_LEVEL(5)
     28 
     29 FAST_LEVEL(3)
     30 
     31 FAST_LEVEL(1)
     32 LEVEL(0)
     33 LEVEL(1)
     34 
     35 LEVEL(3)
     36 LEVEL(4)
     37 /* ROW_LEVEL triggers the row hash (force enabled and disabled) with different
     38  * dictionary strategies, and 16/32/64 row entries based on the level/searchLog.
     39  * 1 == enabled, 2 == disabled.
     40  */
     41 ROW_LEVEL(5, 1)
     42 ROW_LEVEL(5, 2) /* 16-entry rows */
     43 LEVEL(5)
     44 LEVEL(6)
     45 ROW_LEVEL(7, 1)
     46 ROW_LEVEL(7, 2) /* 16-entry rows */
     47 LEVEL(7)
     48 
     49 LEVEL(9)
     50 
     51 ROW_LEVEL(11, 1)
     52 ROW_LEVEL(11, 2) /* 32-entry rows */
     53 ROW_LEVEL(12, 1)
     54 ROW_LEVEL(12, 2) /* 64-entry rows */
     55 LEVEL(13)
     56 
     57 LEVEL(16)
     58 
     59 LEVEL(19)
     60