kopia lustrzana https://github.com/viljoviitanen/pako
Removed orphaned 'FASTEST' #ifdefs emulation
Vitaly Puzrin
rodzic
806e23d9ca
commit
b13f5f1de8
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@ -5,8 +5,6 @@ var utils = require('./utils');
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var trees = require('./trees');
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var adler32 = require('./adler32');
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var FASTEST = true;
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var Z_NULL = c.Z_NULL;
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var MAX_WBITS = 15;
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@ -50,7 +48,7 @@ function flush_pending(strm) {
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if (len > strm.avail_out) {
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len = strm.avail_out;
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}
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if (len === 0) { return;}
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if (len === 0) { return; }
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utils.arraySet(strm.next_out, s.pending_buf, s.pending_out, len, strm.next_out_index);
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strm.next_out_index += len;
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@ -95,8 +93,8 @@ function putShortMSB(s, b) {
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function read_buf(strm, buf, start, size) {
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var len = strm.avail_in;
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if (len > size) { len = size;}
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if (len === 0) { return 0;}
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if (len > size) { len = size; }
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if (len === 0) { return 0; }
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strm.avail_in -= len;
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@ -178,16 +176,15 @@ function fill_window(s) {
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} while (--n);
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n = wsize;
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if (FASTEST) {
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p = n;
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do {
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m = s.head[--p];
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s.head[p] = m >= wsize ? m - wsize : 0;
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/* If n is not on any hash chain, prev[n] is garbage but
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* its value will never be used.
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*/
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} while (--n);
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}
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p = n;
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do {
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m = s.head[--p];
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s.head[p] = m >= wsize ? m - wsize : 0;
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/* If n is not on any hash chain, prev[n] is garbage but
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* its value will never be used.
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*/
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} while (--n);
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more += wsize;
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}
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if (s.strm.avail_in === 0) {
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@ -219,9 +216,7 @@ function fill_window(s) {
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//#endif
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while (s.insert) {
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s.ins_h = update_hash(s, s.ins_h, s.window[str + MIN_MATCH - 1]);
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if (FASTEST) {
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s.prev[str & s.w_mask] = s.head[s.ins_h];
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}
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s.prev[str & s.w_mask] = s.head[s.ins_h];
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s.head[s.ins_h] = str;
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str++;
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s.insert--;
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@ -294,7 +289,7 @@ function deflate_stored(s, flush) {
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}
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/* Copy as much as possible from input to output: */
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for (; ;) {
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for (;;) {
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/* Fill the window as much as possible: */
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if (s.lookahead <= 1) {
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@ -421,28 +416,20 @@ var Config = function (good_length, max_lazy, nice_length, max_chain, func) {
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var configuration_table;
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if (FASTEST) {
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configuration_table = [
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/* good lazy nice chain */
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new Config(0, 0, 0, 0, deflate_stored), /* 0 store only */
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new Config(4, 4, 8, 4, deflate_fast) /* 1 max speed, no lazy matches */
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];
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} else {
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configuration_table = [
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/* good lazy nice chain */
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new Config(0, 0, 0, 0, deflate_stored), /* 0 store only */
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new Config(4, 4, 8, 4, deflate_fast), /* 1 max speed, no lazy matches */
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new Config(4, 5, 16, 8, deflate_fast), /* 2 */
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new Config(4, 6, 32, 32, deflate_fast), /* 3 */
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configuration_table = [
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/* good lazy nice chain */
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new Config(0, 0, 0, 0, deflate_stored), /* 0 store only */
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new Config(4, 4, 8, 4, deflate_fast), /* 1 max speed, no lazy matches */
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new Config(4, 5, 16, 8, deflate_fast), /* 2 */
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new Config(4, 6, 32, 32, deflate_fast), /* 3 */
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new Config(4, 4, 16, 16, deflate_slow), /* 4 lazy matches */
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new Config(8, 16, 32, 32, deflate_slow), /* 5 */
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new Config(8, 16, 128, 128, deflate_slow), /* 6 */
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new Config(8, 32, 128, 256, deflate_slow), /* 7 */
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new Config(32, 128, 258, 1024, deflate_slow), /* 8 */
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new Config(32, 258, 258, 4096, deflate_slow) /* 9 max compression */
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];
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}
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new Config(4, 4, 16, 16, deflate_slow), /* 4 lazy matches */
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new Config(8, 16, 32, 32, deflate_slow), /* 5 */
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new Config(8, 16, 128, 128, deflate_slow), /* 6 */
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new Config(8, 32, 128, 256, deflate_slow), /* 7 */
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new Config(32, 128, 258, 1024, deflate_slow), /* 8 */
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new Config(32, 258, 258, 4096, deflate_slow) /* 9 max compression */
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];
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/* ===========================================================================
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* Initialize the "longest match" routines for a new zlib stream
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@ -609,14 +596,8 @@ function deflateInit2(strm, level, method, windowBits, memLevel, strategy) {
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}
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var wrap = 1;
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if (FASTEST) {
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if (level !== 0) {
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level = 1;
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}
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} else {
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if (level === c.Z_DEFAULT_COMPRESSION) {
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level = 6;
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}
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if (level === c.Z_DEFAULT_COMPRESSION) {
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level = 6;
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}
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if (windowBits < 0) { /* suppress zlib wrapper */
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@ -726,7 +707,7 @@ function deflate(strm, flush) {
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level_flags = 3;
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}
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header |= (level_flags << 6);
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if (s.strstart !== 0) { header |= PRESET_DICT;}
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if (s.strstart !== 0) { header |= PRESET_DICT; }
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header += 31 - (header % 31);
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s.status = BUSY_STATE;
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@ -737,7 +718,7 @@ function deflate(strm, flush) {
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putShortMSB(s, strm.adler >>> 16);
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putShortMSB(s, strm.adler & 0xffff);
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}
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strm.adler = 1;//adler32(0L, Z_NULL, 0);
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strm.adler = 1; // adler32(0L, Z_NULL, 0);
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}
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/* Flush as much pending output as possible */
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