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[AGALMiniAssembler] Small performance optimization #13

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235 changes: 90 additions & 145 deletions src/com/adobe/utils/AGALMiniAssembler.as
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Original file line number Diff line number Diff line change
Expand Up @@ -34,20 +34,29 @@ package com.adobe.utils
// ===========================================================================
// Imports
// ---------------------------------------------------------------------------
//import flash.display3D.*;
import flash.utils.*;

// ===========================================================================
// Class
// ---------------------------------------------------------------------------
public class AGALMiniAssembler
{
// ======================================================================
// Constants
// ----------------------------------------------------------------------
protected static const USE_NEW_SYNTAX:Boolean = false;

protected static const REGEXP_OUTER_SPACES:RegExp = /^\s+|\s+$/g;
protected static const USE_NEW_SYNTAX:Boolean = false;
protected static const REGEXP_OUTER_SPACES:RegExp = /^\s+|\s+$/g;
protected static const REGEXP_LINES:RegExp = /[\f\n\r\v]+/g;
protected static const REGEXP_OPTSI:RegExp = /<.*>/g;
protected static const REGEXP_OPTS:RegExp = /([\w\.\-\+]+)/gi;
protected static const REGEXP_OPCODE:RegExp = /^\w{3}/ig;
protected static const REGEXP_RELREG:RegExp = /\[.*\]/ig;
protected static const REGEXP_RES:RegExp = /^\b[A-Za-z]{1,2}/ig;
protected static const REGEXP_MASKMATCH:RegExp = /(\.[xyzw]{1,4})/;
protected static const REGEXP_RELNAME:RegExp = /[A-Za-z]{1,2}/ig;
protected static const REGEXP_SELMATCH:RegExp = /(\.[xyzw]{1,1})/;
protected static const REGEXP_RELOFS:RegExp = /\+\d{1,3}/ig;
protected static const REGEXP_NUMBER:RegExp = /\d+/;
protected static const REGEXP_REGS_VIF_ACOST:RegExp = /vc\[([vif][acost]?)(\d*)?(\.[xyzw](\+\d{1,3})?)?\](\.[xyzw]{1,4})?|([vif][acost]?)(\d*)?(\.[xyzw]{1,4})?/gi;
protected static const REGEXP_REGS_VOF_ACTPS:RegExp = /vc\[([vof][actps]?)(\d*)?(\.[xyzw](\+\d{1,3})?)?\](\.[xyzw]{1,4})?|([vof][actps]?)(\d*)?(\.[xyzw]{1,4})?/gi;
protected static const X_CHAR_CODE:Number = "x".charCodeAt(0);

// ======================================================================
// Properties
Expand Down Expand Up @@ -81,7 +90,7 @@ package com.adobe.utils
// ----------------------------------------------------------------------
public function assemble( mode:String, source:String ):ByteArray
{
var start:uint = getTimer();
var start:uint = verbose ? getTimer() : 0;

_agalcode = new ByteArray();
_error = "";
Expand All @@ -99,33 +108,33 @@ package com.adobe.utils
agalcode.writeByte( 0xa1 ); // tag program id
agalcode.writeByte( isFrag ? 1 : 0 ); // vertex or fragment

var lines:Array = source.replace( /[\f\n\r\v]+/g, "\n" ).split( "\n" );
var lines:Array = source.replace(REGEXP_LINES, "\n" ).split( "\n" );
var nest:int = 0;
var nops:int = 0;
var i:int;
var lng:int = lines.length;

for ( i = 0; i < lng && _error == ""; i++ )
{
var line:String = new String( lines[i] );
line = line.replace( REGEXP_OUTER_SPACES, "" );
var line:String = lines[i];
line = line.replace(REGEXP_OUTER_SPACES, "");

// remove comments
var startcomment:int = line.search( "//" );
if ( startcomment != -1 )
line = line.slice( 0, startcomment );

// grab options
var optsi:int = line.search( /<.*>/g );
var optsi:int = line.search(REGEXP_OPTSI);
var opts:Array;
if ( optsi != -1 )
{
opts = line.slice( optsi ).match( /([\w\.\-\+]+)/gi );
opts = line.slice( optsi ).match(REGEXP_OPTS);
line = line.slice( 0, optsi );
}

// find opcode
var opCode:Array = line.match( /^\w{3}/ig );
var opCode:Array = line.match(REGEXP_OPCODE);
if ( !opCode )
{
if ( line.length >= 3 )
Expand Down Expand Up @@ -186,13 +195,13 @@ package com.adobe.utils
// get operands, use regexp
var regs:Array;
if ( USE_NEW_SYNTAX )
regs = line.match( /vc\[([vif][acost]?)(\d*)?(\.[xyzw](\+\d{1,3})?)?\](\.[xyzw]{1,4})?|([vif][acost]?)(\d*)?(\.[xyzw]{1,4})?/gi );
regs = line.match(REGEXP_REGS_VIF_ACOST);
else
regs = line.match( /vc\[([vof][actps]?)(\d*)?(\.[xyzw](\+\d{1,3})?)?\](\.[xyzw]{1,4})?|([vof][actps]?)(\d*)?(\.[xyzw]{1,4})?/gi );
regs = line.match(REGEXP_REGS_VOF_ACTPS);

if ( !regs || regs.length != opFound.numRegister )
{
_error = "error: wrong number of operands. found "+regs.length+" but expected "+opFound.numRegister+".";
_error = "error: wrong number of operands. found " + regs.length + " but expected " + opFound.numRegister + ".";
break;
}

Expand All @@ -203,7 +212,7 @@ package com.adobe.utils
for ( var j:int = 0; j < regLength; j++ )
{
var isRelative:Boolean = false;
var relreg:Array = regs[ j ].match( /\[.*\]/ig );
var relreg:Array = regs[ j ].match(REGEXP_RELREG);
if ( relreg && relreg.length > 0 )
{
regs[ j ] = regs[ j ].replace( relreg[ 0 ], "0" );
Expand All @@ -213,7 +222,7 @@ package com.adobe.utils
isRelative = true;
}

var res:Array = regs[j].match( /^\b[A-Za-z]{1,2}/ig );
var res:Array = regs[j].match(REGEXP_RES);
if ( !res )
{
_error = "error: could not parse operand "+j+" ("+regs[j]+").";
Expand Down Expand Up @@ -260,7 +269,7 @@ package com.adobe.utils

regs[j] = regs[j].slice( regs[j].search( regFound.name ) + regFound.name.length );
//trace( "REGNUM: " +regs[j] );
var idxmatch:Array = isRelative ? relreg[0].match( /\d+/ ) : regs[j].match( /\d+/ );
var idxmatch:Array = isRelative ? relreg[0].match(REGEXP_NUMBER) : regs[j].match(REGEXP_NUMBER);
var regidx:uint = 0;

if ( idxmatch )
Expand All @@ -274,7 +283,7 @@ package com.adobe.utils
}

var regmask:uint = 0;
var maskmatch:Array = regs[j].match( /(\.[xyzw]{1,4})/ );
var maskmatch:Array = regs[j].match(REGEXP_MASKMATCH);
var isDest:Boolean = ( j == 0 && !( opFound.flags & OP_NO_DEST ) );
var isSampler:Boolean = ( j == 2 && ( opFound.flags & OP_SPECIAL_TEX ) );
var reltype:uint = 0;
Expand All @@ -295,7 +304,7 @@ package com.adobe.utils
var maskLength:uint = maskmatch[0].length;
for ( var k:int = 1; k < maskLength; k++ )
{
cv = maskmatch[0].charCodeAt(k) - "x".charCodeAt(0);
cv = maskmatch[0].charCodeAt(k) - X_CHAR_CODE;
if ( cv > 2 )
cv = 3;
if ( isDest )
Expand All @@ -314,7 +323,7 @@ package com.adobe.utils

if ( isRelative )
{
var relname:Array = relreg[0].match( /[A-Za-z]{1,2}/ig );
var relname:Array = relreg[0].match(REGEXP_RELNAME);
var regFoundRel:Register = REGMAP[ relname[0]];
if ( regFoundRel == null )
{
Expand All @@ -323,7 +332,7 @@ package com.adobe.utils
break;
}
reltype = regFoundRel.emitCode;
var selmatch:Array = relreg[0].match( /(\.[xyzw]{1,1})/ );
var selmatch:Array = relreg[0].match(REGEXP_SELMATCH);
if ( selmatch.length==0 )
{
_error = "error: bad index register select";
Expand All @@ -333,7 +342,7 @@ package com.adobe.utils
relsel = selmatch[0].charCodeAt(1) - "x".charCodeAt(0);
if ( relsel > 2 )
relsel = 3;
var relofs:Array = relreg[0].match( /\+\d{1,3}/ig );
var relofs:Array = relreg[0].match(REGEXP_RELOFS);
if ( relofs.length > 0 )
reloffset = relofs[0];
if ( reloffset < 0 || reloffset > 255 )
Expand All @@ -354,7 +363,8 @@ package com.adobe.utils
agalcode.writeByte( regmask );
agalcode.writeByte( regFound.emitCode );
pad -= 32;
} else
}
else
{
if ( isSampler )
{
Expand All @@ -380,7 +390,7 @@ package com.adobe.utils
{
if ( optfound.flag != SAMPLER_SPECIAL_SHIFT )
samplerbits &= ~( 0xf << optfound.flag );
samplerbits |= uint( optfound.mask ) << uint( optfound.flag );
samplerbits |= optfound.mask << optfound.flag;
}
}
agalcode.writeShort( regidx );
Expand Down Expand Up @@ -665,130 +675,65 @@ package com.adobe.utils
}
}

// ================================================================================
// Helper Classes
// --------------------------------------------------------------------------------
class OpCode
{
public var emitCode:uint;
public var flags:uint;
public var name:String;
public var numRegister:uint;

public function OpCode( name:String, numRegister:uint, emitCode:uint, flags:uint)
{
this.name = name;
this.numRegister = numRegister;
this.emitCode = emitCode;
this.flags = flags;
}

public function toString():String
{
return "[OpCode name=\"" + name+"\", numRegister=" + numRegister + ", emitCode=" + emitCode+", flags=" + flags + "]";
}
}

class Register
{
// ===========================================================================
// Class
// ---------------------------------------------------------------------------
class OpCode
{
// ======================================================================
// Properties
// ----------------------------------------------------------------------
private var _emitCode:uint;
private var _flags:uint;
private var _name:String;
private var _numRegister:uint;

// ======================================================================
// Getters
// ----------------------------------------------------------------------
public function get emitCode():uint { return _emitCode; }
public function get flags():uint { return _flags; }
public function get name():String { return _name; }
public function get numRegister():uint { return _numRegister; }

// ======================================================================
// Constructor
// ----------------------------------------------------------------------
public function OpCode( name:String, numRegister:uint, emitCode:uint, flags:uint)
{
_name = name;
_numRegister = numRegister;
_emitCode = emitCode;
_flags = flags;
}

// ======================================================================
// Methods
// ----------------------------------------------------------------------
public function toString():String
{
return "[OpCode name=\""+_name+"\", numRegister="+_numRegister+", emitCode="+_emitCode+", flags="+_flags+"]";
}
public var emitCode:uint;
public var longName:String;
public var name:String;
public var flags:uint;
public var range:uint;

public function Register( name:String, longName:String, emitCode:uint, range:uint, flags:uint)
{
this.name = name;
this.longName = longName;
this.emitCode = emitCode;
this.range = range;
this.flags = flags;
}

// ===========================================================================
// Class
// ---------------------------------------------------------------------------
class Register
public function toString():String
{
// ======================================================================
// Properties
// ----------------------------------------------------------------------
private var _emitCode:uint;
private var _name:String;
private var _longName:String;
private var _flags:uint;
private var _range:uint;

// ======================================================================
// Getters
// ----------------------------------------------------------------------
public function get emitCode():uint { return _emitCode; }
public function get longName():String { return _longName; }
public function get name():String { return _name; }
public function get flags():uint { return _flags; }
public function get range():uint { return _range; }

// ======================================================================
// Constructor
// ----------------------------------------------------------------------
public function Register( name:String, longName:String, emitCode:uint, range:uint, flags:uint)
{
_name = name;
_longName = longName;
_emitCode = emitCode;
_range = range;
_flags = flags;
}

// ======================================================================
// Methods
// ----------------------------------------------------------------------
public function toString():String
{
return "[Register name=\""+_name+"\", longName=\""+_longName+"\", emitCode="+_emitCode+", range="+_range+", flags="+ _flags+"]";
}
return "[Register name=\"" + name+"\", longName=\"" + longName+"\", emitCode=" + emitCode+", range=" + range+", flags=" + flags + "]";
}
}

class Sampler
{
public var flag:uint;
public var mask:uint;
public var name:String;

// ===========================================================================
// Class
// ---------------------------------------------------------------------------
class Sampler
public function Sampler( name:String, flag:uint, mask:uint )
{
// ======================================================================
// Properties
// ----------------------------------------------------------------------
private var _flag:uint;
private var _mask:uint;
private var _name:String;

// ======================================================================
// Getters
// ----------------------------------------------------------------------
public function get flag():uint { return _flag; }
public function get mask():uint { return _mask; }
public function get name():String { return _name; }

// ======================================================================
// Constructor
// ----------------------------------------------------------------------
public function Sampler( name:String, flag:uint, mask:uint )
{
_name = name;
_flag = flag;
_mask = mask;
}

// ======================================================================
// Methods
// ----------------------------------------------------------------------
public function toString():String
{
return "[Sampler name=\""+_name+"\", flag=\""+_flag+"\", mask="+mask+"]";
}
this.name = name;
this.flag = flag;
this.mask = mask;
}

public function toString():String
{
return "[Sampler name=\"" + name+"\", flag=\"" + flag + "\", mask=" + mask + "]";
}
}
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