var GetBitmapTextSize = function (src, round){ 
var text = src.text; 
var textLength = _AN_Read_length('length', text); 
var bx = Number.MAX_VALUE; 
var by = Number.MAX_VALUE; 
var bw = 0; 
var bh = 0; 
var chars = src.fontData.chars; 
var lineHeight = src.fontData.lineHeight; 
var letterSpacing = src.letterSpacing; 
var xAdvance = 0; 
var yAdvance = 0; 
var indexCount = 0; 
var charCode = 0; 
var glyph = null ; 
var glyphW = 0; 
var glyphH = 0; 
var x = 0; 
var y = 0; 
var lastGlyph = null ; 
var lastCharCode = 0; 
for (var index = 0; 
index < textLength; ++index){ 
charCode = text.charCodeAt(index); 
if (charCode === 10) { 
xAdvance = 0; 
indexCount = 0; 
yAdvance += lineHeight; 
lastGlyph = null ; 
continue ; 
} 
glyph = chars[charCode]; 
if (!glyph) { 
continue ; 
} 
glyphW = glyph.width; 
glyphH = glyph.height; 
x = indexCount + glyph.xOffset + xAdvance; 
y = glyph.yOffset + yAdvance; 
if (lastGlyph !== null ) { 
var kerningOffset = glyph.kerning[lastCharCode]; 
x += (kerningOffset !== undefined)? kerningOffset: 0; 
} 
if (bx > x) { 
bx = x; 
} 
if (by > y) { 
by = y; 
} 
var gw = x + glyphW - bx; 
var gh = y + glyphH - by; 
if (bw < gw) { 
bw = gw; 
} 
if (bh < gh) { 
bh = gh; 
} 
xAdvance += glyph.xAdvance + letterSpacing; 
indexCount += 1; 
lastGlyph = glyph; 
lastCharCode = charCode; 
} 
var scale = (src.fontSize / src.fontData.size); 
var sx = scale * src.scaleX; 
var sy = scale * src.scaleY; 
var out = { 
local: { 
x: bx * scale,
y: by * scale,
width: bw * scale,
height: bh * scale}
,
global: { 
x: src.x + (bx * sx),
y: src.y + (by * sy),
width: bw * sx,
height: bh * sy}
}
; 
if (round) { 
out.local.x = Math.round(out.local.x); 
out.local.y = Math.round(out.local.y); 
out.local.width = Math.round(out.local.width); 
out.local.height = Math.round(out.local.height); 
out.global.x = Math.round(out.global.x); 
out.global.y = Math.round(out.global.y); 
out.global.width = Math.round(out.global.width); 
out.global.height = Math.round(out.global.height); 
} 
return out; 
} 
; 
module.exports = GetBitmapTextSize;