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[WIP] Tweak Pako to reduce object creation 

This commit tweaks pako slightly to reduce the number of objects
it creates unecessarily.
This commit is contained in:
Solly Ross 2015-12-22 15:42:09 -05:00
parent 8eedab379f
commit a842140b51
2 changed files with 6 additions and 5 deletions
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1
docs/notes
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@ -3,3 +3,4 @@ Rebuilding inflator.js
- Download pako from npm - Download pako from npm
- Install browserify using npm - Install browserify using npm
- browserify utils/inflator.partial.js -o include/inflator.js -s inflator - browserify utils/inflator.partial.js -o include/inflator.js -s inflator
- apply changes from utils/inflator.diff.js to include/inflator.js

8
include/inflator.js
View File

@ -889,7 +889,7 @@ function inflate(strm, flush) {
var len; /* length to copy for repeats, bits to drop */ var len; /* length to copy for repeats, bits to drop */
var ret; /* return code */ var ret; /* return code */
var hbuf = new utils.Buf8(4); /* buffer for gzip header crc calculation */ var hbuf = new utils.Buf8(4); /* buffer for gzip header crc calculation */
var opts; var opts = {};
var n; // temporary var for NEED_BITS var n; // temporary var for NEED_BITS
@ -1425,7 +1425,7 @@ function inflate(strm, flush) {
state.lencode = state.lendyn; state.lencode = state.lendyn;
state.lenbits = 7; state.lenbits = 7;
opts = {bits: state.lenbits}; opts.bits = state.lenbits;
ret = inflate_table(CODES, state.lens, 0, 19, state.lencode, 0, state.work, opts); ret = inflate_table(CODES, state.lens, 0, 19, state.lencode, 0, state.work, opts);
state.lenbits = opts.bits; state.lenbits = opts.bits;
@ -1556,7 +1556,7 @@ function inflate(strm, flush) {
concerning the ENOUGH constants, which depend on those values */ concerning the ENOUGH constants, which depend on those values */
state.lenbits = 9; state.lenbits = 9;
opts = {bits: state.lenbits}; opts.bits = state.lenbits;
ret = inflate_table(LENS, state.lens, 0, state.nlen, state.lencode, 0, state.work, opts); ret = inflate_table(LENS, state.lens, 0, state.nlen, state.lencode, 0, state.work, opts);
// We have separate tables & no pointers. 2 commented lines below not needed. // We have separate tables & no pointers. 2 commented lines below not needed.
// state.next_index = opts.table_index; // state.next_index = opts.table_index;
@ -1573,7 +1573,7 @@ function inflate(strm, flush) {
//state.distcode.copy(state.codes); //state.distcode.copy(state.codes);
// Switch to use dynamic table // Switch to use dynamic table
state.distcode = state.distdyn; state.distcode = state.distdyn;
opts = {bits: state.distbits}; opts.bits = state.distbits;
ret = inflate_table(DISTS, state.lens, state.nlen, state.ndist, state.distcode, 0, state.work, opts); ret = inflate_table(DISTS, state.lens, state.nlen, state.ndist, state.distcode, 0, state.work, opts);
// We have separate tables & no pointers. 2 commented lines below not needed. // We have separate tables & no pointers. 2 commented lines below not needed.
// state.next_index = opts.table_index; // state.next_index = opts.table_index;