Sakurai/pdf.js
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Memory optimzation for constructPath

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pramodhkp 2014-06-25 00:53:18 +05:30
parent 7efd50e64d
commit 86e584d767
1 changed files with 10 additions and 14 deletions
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24
src/display/svg.js
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@ -522,7 +522,7 @@ var SVGGraphics = (function SVGGraphicsClosure(ctx) {
var current = this.current; var current = this.current;
var x = current.x, y = current.y; var x = current.x, y = current.y;
current.path = document.createElementNS(NS, 'svg:path'); current.path = document.createElementNS(NS, 'svg:path');
var d = ''; var d = [];
var arr = []; var arr = [];
var opLength = ops.length; var opLength = ops.length;
@ -535,47 +535,42 @@ var SVGGraphics = (function SVGGraphicsClosure(ctx) {
var height = args[j++]; var height = args[j++];
var xw = x + width; var xw = x + width;
var yh = y + height; var yh = y + height;
d += 'M' + x + ' ' + y + 'L' + xw + ' ' + y + d.push('M', x , y, 'L', xw , y, 'L', xw, yh, 'L', x, yh, 'Z');
'L' + xw + ' ' + yh + 'L' + xw + ' ' + yh +
'L' + x + ' ' + yh + ' ' + 'Z';
break; break;
case OPS.moveTo: case OPS.moveTo:
x = args[j++]; x = args[j++];
y = args[j++]; y = args[j++];
d += 'M' + x + ' ' + y; d.push('M', x, y);
break; break;
case OPS.lineTo: case OPS.lineTo:
x = args[j++]; x = args[j++];
y = args[j++]; y = args[j++];
d += 'L' + x + ' ' + y; d.push('L', x , y);
break; break;
case OPS.curveTo: case OPS.curveTo:
x = args[j + 4]; x = args[j + 4];
y = args[j + 5]; y = args[j + 5];
arr = [args[j], args[j + 1], args[j + 2], args[j + 3], x, y]; d.push('C', args[j], args[j + 1], args[j + 2], args[j + 3], x, y);
d += 'C ' + arr.join(' ');
j += 6; j += 6;
break; break;
case OPS.curveTo2: case OPS.curveTo2:
x = args[j + 2]; x = args[j + 2];
y = args[j + 3]; y = args[j + 3];
arr = [x, y, args[j], args[j + 1], args[j + 2], args[j + 3]]; d.push('C', x, y, args[j], args[j + 1], args[j + 2], args[j + 3]);
d += 'C ' + arr.join(' ');
j += 4; j += 4;
break; break;
case OPS.curveTo3: case OPS.curveTo3:
x = args[j + 2]; x = args[j + 2];
y = args[j + 3]; y = args[j + 3];
arr = [args[j], args[j + 1], x, y, x, y]; d.push('C', args[j], args[j + 1], x, y, x, y);
d += 'C ' + arr.join(' ');
j += 4; j += 4;
break; break;
case OPS.closePath: case OPS.closePath:
d += 'Z'; d.push('Z');
break; break;
} }
} }
current.path.setAttributeNS(null, 'd', d); current.path.setAttributeNS(null, 'd', d.join(' '));
current.path.setAttributeNS(null, 'stroke-miterlimit', current.path.setAttributeNS(null, 'stroke-miterlimit',
current.miterLimit); current.miterLimit);
current.path.setAttributeNS(null, 'stroke-linecap', current.lineCap); current.path.setAttributeNS(null, 'stroke-linecap', current.lineCap);
@ -683,6 +678,7 @@ var SVGGraphics = (function SVGGraphicsClosure(ctx) {
this.closePath(); this.closePath();
this.fillStroke(); this.fillStroke();
}, },
paintSolidColorImageMask: paintSolidColorImageMask:
function SVGGraphics_paintSolidColorImageMask() { function SVGGraphics_paintSolidColorImageMask() {
var current = this.current; var current = this.current;