RetailCRM-Mirror/PHPExcel
1
0
Fork 0
mirror of https://github.com/retailcrm/PHPExcel.git synced 2024-11-26 07:16:03 +03:00
Code Issues Projects Releases Wiki Activity

Memory and Performance Improvements for Excel5 Reader

Browse Source 
git-svn-id: https://phpexcel.svn.codeplex.com/svn/trunk@64357 2327b42d-5241-43d6-9e2a-de5ac946f064
This commit is contained in:
Mark Baker 2010-11-25 17:43:23 +00:00
parent 6c9a41879b
commit f2bed9ca37
2 changed files with 443 additions and 481 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

801
Classes/PHPExcel/Reader/Excel5.php
View File

File diff suppressed because it is too large Load Diff

123
Classes/PHPExcel/Reader/Excel5/Escher.php
View File

@ -108,9 +108,8 @@ class PHPExcel_Reader_Excel5_Escher
// Parse Escher stream
while ($this->_pos < $this->_dataSize) {
// offset: 2; size: 2: Record Type
$fbt = $this->_GetInt2d($this->_data, $this->_pos + 2);
$fbt = PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos + 2);
switch ($fbt) {
case self::DGGCONTAINER: $this->_readDggContainer(); break;
@ -144,15 +143,15 @@ class PHPExcel_Reader_Excel5_Escher
private function _readDefault()
{
// offset 0; size: 2; recVer and recInstance
$verInstance = $this->_GetInt2d($this->_data, $this->_pos);
$verInstance = PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos);
// offset: 2; size: 2: Record Type
$fbt = $this->_GetInt2d($this->_data, $this->_pos + 2);
$fbt = PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos + 2);
// bit: 0-3; mask: 0x000F; recVer
$recVer = (0x000F & $verInstance) >> 0;
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -164,7 +163,7 @@ class PHPExcel_Reader_Excel5_Escher
*/
private function _readDggContainer()
{
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -182,7 +181,7 @@ class PHPExcel_Reader_Excel5_Escher
*/
private function _readDgg()
{
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -194,7 +193,7 @@ class PHPExcel_Reader_Excel5_Escher
*/
private function _readBstoreContainer()
{
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -215,9 +214,9 @@ class PHPExcel_Reader_Excel5_Escher
// offset: 0; size: 2; recVer and recInstance
// bit: 4-15; mask: 0xFFF0; recInstance
$recInstance = (0xFFF0 & $this->_GetInt2d($this->_data, $this->_pos)) >> 4;
$recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4;
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -239,16 +238,16 @@ class PHPExcel_Reader_Excel5_Escher
$rgbUid = substr($recordData, 2, 16);
// offset: 18; size: 2; tag
$tag = $this->_GetInt2d($recordData, 18);
$tag = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 18);
// offset: 20; size: 4; size of BLIP in bytes
$size = $this->_GetInt4d($recordData, 20);
$size = PHPExcel_Reader_Excel5::_GetInt4d($recordData, 20);
// offset: 24; size: 4; number of references to this BLIP
$cRef = $this->_GetInt4d($recordData, 24);
$cRef = PHPExcel_Reader_Excel5::_GetInt4d($recordData, 24);
// offset: 28; size: 4; MSOFO file offset
$foDelay = $this->_GetInt4d($recordData, 28);
$foDelay = PHPExcel_Reader_Excel5::_GetInt4d($recordData, 28);
// offset: 32; size: 1; unused1
$unused1 = ord($recordData{32});
@ -281,9 +280,9 @@ class PHPExcel_Reader_Excel5_Escher
// offset: 0; size: 2; recVer and recInstance
// bit: 4-15; mask: 0xFFF0; recInstance
$recInstance = (0xFFF0 & $this->_GetInt2d($this->_data, $this->_pos)) >> 4;
$recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4;
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -322,9 +321,9 @@ class PHPExcel_Reader_Excel5_Escher
// offset: 0; size: 2; recVer and recInstance
// bit: 4-15; mask: 0xFFF0; recInstance
$recInstance = (0xFFF0 & $this->_GetInt2d($this->_data, $this->_pos)) >> 4;
$recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4;
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -363,9 +362,9 @@ class PHPExcel_Reader_Excel5_Escher
// offset: 0; size: 2; recVer and recInstance
// bit: 4-15; mask: 0xFFF0; recInstance
$recInstance = (0xFFF0 & $this->_GetInt2d($this->_data, $this->_pos)) >> 4;
$recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4;
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -382,9 +381,9 @@ class PHPExcel_Reader_Excel5_Escher
// offset: 0; size: 2; recVer and recInstance
// bit: 4-15; mask: 0xFFF0; recInstance
$recInstance = (0xFFF0 & $this->_GetInt2d($this->_data, $this->_pos)) >> 4;
$recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4;
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -396,7 +395,7 @@ class PHPExcel_Reader_Excel5_Escher
*/
private function _readSplitMenuColors()
{
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -408,7 +407,7 @@ class PHPExcel_Reader_Excel5_Escher
*/
private function _readDgContainer()
{
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -426,7 +425,7 @@ class PHPExcel_Reader_Excel5_Escher
*/
private function _readDg()
{
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -440,7 +439,7 @@ class PHPExcel_Reader_Excel5_Escher
{
// context is either context DgContainer or SpgrContainer
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -466,7 +465,7 @@ class PHPExcel_Reader_Excel5_Escher
*/
private function _readSpContainer()
{
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// add spContainer to spgrContainer
@ -486,7 +485,7 @@ class PHPExcel_Reader_Excel5_Escher
*/
private function _readSpgr()
{
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -501,9 +500,9 @@ class PHPExcel_Reader_Excel5_Escher
// offset: 0; size: 2; recVer and recInstance
// bit: 4-15; mask: 0xFFF0; recInstance
$recInstance = (0xFFF0 & $this->_GetInt2d($this->_data, $this->_pos)) >> 4;
$recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4;
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -518,9 +517,9 @@ class PHPExcel_Reader_Excel5_Escher
// offset: 0; size: 2; recVer and recInstance
// bit: 4-15; mask: 0xFFF0; recInstance
$recInstance = (0xFFF0 & $this->_GetInt2d($this->_data, $this->_pos)) >> 4;
$recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4;
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -532,35 +531,35 @@ class PHPExcel_Reader_Excel5_Escher
*/
private function _readClientAnchor()
{
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
$this->_pos += 8 + $length;
// offset: 2; size: 2; upper-left corner column index (0-based)
$c1 = $this->_GetInt2d($recordData, 2);
$c1 = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 2);
// offset: 4; size: 2; upper-left corner horizontal offset in 1/1024 of column width
$startOffsetX = $this->_GetInt2d($recordData, 4);
$startOffsetX = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 4);
// offset: 6; size: 2; upper-left corner row index (0-based)
$r1 = $this->_GetInt2d($recordData, 6);
$r1 = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 6);
// offset: 8; size: 2; upper-left corner vertical offset in 1/256 of row height
$startOffsetY = $this->_GetInt2d($recordData, 8);
$startOffsetY = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 8);
// offset: 10; size: 2; bottom-right corner column index (0-based)
$c2 = $this->_GetInt2d($recordData, 10);
$c2 = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 10);
// offset: 12; size: 2; bottom-right corner horizontal offset in 1/1024 of column width
$endOffsetX = $this->_GetInt2d($recordData, 12);
$endOffsetX = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 12);
// offset: 14; size: 2; bottom-right corner row index (0-based)
$r2 = $this->_GetInt2d($recordData, 14);
$r2 = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 14);
// offset: 16; size: 2; bottom-right corner vertical offset in 1/256 of row height
$endOffsetY = $this->_GetInt2d($recordData, 16);
$endOffsetY = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 16);
// set the start coordinates
$this->_object->setStartCoordinates(PHPExcel_Cell::stringFromColumnIndex($c1) . ($r1 + 1));
@ -586,7 +585,7 @@ class PHPExcel_Reader_Excel5_Escher
*/
private function _readClientData()
{
$length = $this->_GetInt4d($this->_data, $this->_pos + 4);
$length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4);
$recordData = substr($this->_data, $this->_pos + 8, $length);
// move stream pointer to next record
@ -609,7 +608,7 @@ class PHPExcel_Reader_Excel5_Escher
$fopte = substr($data, 6 * $i, 6);
// offset: 0; size: 2; opid
$opid = $this->_GetInt2d($fopte, 0);
$opid = PHPExcel_Reader_Excel5::_GetInt2d($fopte, 0);
// bit: 0-13; mask: 0x3FFF; opid.opid
$opidOpid = (0x3FFF & $opid) >> 0;
@ -621,7 +620,7 @@ class PHPExcel_Reader_Excel5_Escher
$opidFComplex = (0x8000 & $opid) >> 15;
// offset: 2; size: 4; the value for this property
$op = $this->_GetInt4d($fopte, 2);
$op = PHPExcel_Reader_Excel5::_GetInt4d($fopte, 2);
if ($opidFComplex) {
$complexData = substr($splicedComplexData, 0, $op);
@ -638,40 +637,4 @@ class PHPExcel_Reader_Excel5_Escher
}
}
/**
* Read 16-bit unsigned integer
*
* @param string $data
* @param int $pos
* @return int
*/
private function _GetInt2d($data, $pos)
{
return ord($data[$pos]) | (ord($data[$pos + 1]) << 8);
}
/**
* Read 32-bit signed integer
*
* @param string $data
* @param int $pos
* @return int
*/
private function _GetInt4d($data, $pos)
{
//return ord($data[$pos]) | (ord($data[$pos + 1]) << 8) |
// (ord($data[$pos + 2]) << 16) | (ord($data[$pos + 3]) << 24);
// FIX: represent numbers correctly on 64-bit system
// http://sourceforge.net/tracker/index.php?func=detail&aid=1487372&group_id=99160&atid=623334
$_or_24 = ord($data[$pos + 3]);
if ($_or_24 >= 128) {
// negative number
$_ord_24 = -abs((256 - $_or_24) << 24);
} else {
$_ord_24 = ($_or_24 & 127) << 24;
}
return ord($data[$pos]) | (ord($data[$pos + 1]) << 8) | (ord($data[$pos + 2]) << 16) | $_ord_24;
}
}