mirror of
https://github.com/mozilla/pdf.js.git
synced 2025-04-26 10:08:06 +02:00
Reduce the memory usage of the operator list.
This commit is contained in:
Brendan Dahl
parent
a6e7f2226a
commit
f4942b11f8
8 changed files with 288 additions and 155 deletions
|
|
@ -184,7 +184,6 @@ var Page = (function PageClosure() {
|
|||
var annotations = datas[1];
|
||||
|
||||
if (annotations.length === 0) {
|
||||
PartialEvaluator.optimizeQueue(pageOpList);
|
||||
pageOpList.flush(true);
|
||||
promise.resolve(pageOpList);
|
||||
return;
|
||||
|
|
@ -193,7 +192,6 @@ var Page = (function PageClosure() {
|
|||
var annotationsReadyPromise = Annotation.appendToOperatorList(
|
||||
annotations, pageOpList, pdfManager, partialEvaluator);
|
||||
annotationsReadyPromise.then(function () {
|
||||
PartialEvaluator.optimizeQueue(pageOpList);
|
||||
pageOpList.flush(true);
|
||||
promise.resolve(pageOpList);
|
||||
}, reject);
|
||||
|
|
|
|||
|
|
@ -20,7 +20,7 @@
|
|||
isStream, isString, JpegStream, Lexer, Metrics, Name, Parser,
|
||||
Pattern, PDFImage, PDFJS, serifFonts, stdFontMap, symbolsFonts,
|
||||
TilingPattern, TODO, warn, Util, Promise,
|
||||
RefSetCache, isRef, TextRenderingMode, CMapFactory */
|
||||
RefSetCache, isRef, TextRenderingMode, CMapFactory, OPS */
|
||||
|
||||
'use strict';
|
||||
|
||||
|
|
@ -45,98 +45,99 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
// If variableArgs === false: exactly `numArgs` expected
|
||||
var OP_MAP = {
|
||||
// Graphic state
|
||||
w: { fnName: 'setLineWidth', numArgs: 1, variableArgs: false },
|
||||
J: { fnName: 'setLineCap', numArgs: 1, variableArgs: false },
|
||||
j: { fnName: 'setLineJoin', numArgs: 1, variableArgs: false },
|
||||
M: { fnName: 'setMiterLimit', numArgs: 1, variableArgs: false },
|
||||
d: { fnName: 'setDash', numArgs: 2, variableArgs: false },
|
||||
ri: { fnName: 'setRenderingIntent', numArgs: 1, variableArgs: false },
|
||||
i: { fnName: 'setFlatness', numArgs: 1, variableArgs: false },
|
||||
gs: { fnName: 'setGState', numArgs: 1, variableArgs: false },
|
||||
q: { fnName: 'save', numArgs: 0, variableArgs: false },
|
||||
Q: { fnName: 'restore', numArgs: 0, variableArgs: false },
|
||||
cm: { fnName: 'transform', numArgs: 6, variableArgs: false },
|
||||
w: { id: OPS.setLineWidth, numArgs: 1, variableArgs: false },
|
||||
J: { id: OPS.setLineCap, numArgs: 1, variableArgs: false },
|
||||
j: { id: OPS.setLineJoin, numArgs: 1, variableArgs: false },
|
||||
M: { id: OPS.setMiterLimit, numArgs: 1, variableArgs: false },
|
||||
d: { id: OPS.setDash, numArgs: 2, variableArgs: false },
|
||||
ri: { id: OPS.setRenderingIntent, numArgs: 1, variableArgs: false },
|
||||
i: { id: OPS.setFlatness, numArgs: 1, variableArgs: false },
|
||||
gs: { id: OPS.setGState, numArgs: 1, variableArgs: false },
|
||||
q: { id: OPS.save, numArgs: 0, variableArgs: false },
|
||||
Q: { id: OPS.restore, numArgs: 0, variableArgs: false },
|
||||
cm: { id: OPS.transform, numArgs: 6, variableArgs: false },
|
||||
|
||||
// Path
|
||||
m: { fnName: 'moveTo', numArgs: 2, variableArgs: false },
|
||||
l: { fnName: 'lineTo', numArgs: 2, variableArgs: false },
|
||||
c: { fnName: 'curveTo', numArgs: 6, variableArgs: false },
|
||||
v: { fnName: 'curveTo2', numArgs: 4, variableArgs: false },
|
||||
y: { fnName: 'curveTo3', numArgs: 4, variableArgs: false },
|
||||
h: { fnName: 'closePath', numArgs: 0, variableArgs: false },
|
||||
re: { fnName: 'rectangle', numArgs: 4, variableArgs: false },
|
||||
S: { fnName: 'stroke', numArgs: 0, variableArgs: false },
|
||||
s: { fnName: 'closeStroke', numArgs: 0, variableArgs: false },
|
||||
f: { fnName: 'fill', numArgs: 0, variableArgs: false },
|
||||
F: { fnName: 'fill', numArgs: 0, variableArgs: false },
|
||||
'f*': { fnName: 'eoFill', numArgs: 0, variableArgs: false },
|
||||
B: { fnName: 'fillStroke', numArgs: 0, variableArgs: false },
|
||||
'B*': { fnName: 'eoFillStroke', numArgs: 0, variableArgs: false },
|
||||
b: { fnName: 'closeFillStroke', numArgs: 0, variableArgs: false },
|
||||
'b*': { fnName: 'closeEOFillStroke', numArgs: 0, variableArgs: false },
|
||||
n: { fnName: 'endPath', numArgs: 0, variableArgs: false },
|
||||
m: { id: OPS.moveTo, numArgs: 2, variableArgs: false },
|
||||
l: { id: OPS.lineTo, numArgs: 2, variableArgs: false },
|
||||
c: { id: OPS.curveTo, numArgs: 6, variableArgs: false },
|
||||
v: { id: OPS.curveTo2, numArgs: 4, variableArgs: false },
|
||||
y: { id: OPS.curveTo3, numArgs: 4, variableArgs: false },
|
||||
h: { id: OPS.closePath, numArgs: 0, variableArgs: false },
|
||||
re: { id: OPS.rectangle, numArgs: 4, variableArgs: false },
|
||||
S: { id: OPS.stroke, numArgs: 0, variableArgs: false },
|
||||
s: { id: OPS.closeStroke, numArgs: 0, variableArgs: false },
|
||||
f: { id: OPS.fill, numArgs: 0, variableArgs: false },
|
||||
F: { id: OPS.fill, numArgs: 0, variableArgs: false },
|
||||
'f*': { id: OPS.eoFill, numArgs: 0, variableArgs: false },
|
||||
B: { id: OPS.fillStroke, numArgs: 0, variableArgs: false },
|
||||
'B*': { id: OPS.eoFillStroke, numArgs: 0, variableArgs: false },
|
||||
b: { id: OPS.closeFillStroke, numArgs: 0, variableArgs: false },
|
||||
'b*': { id: OPS.closeEOFillStroke, numArgs: 0, variableArgs: false },
|
||||
n: { id: OPS.endPath, numArgs: 0, variableArgs: false },
|
||||
|
||||
// Clipping
|
||||
W: { fnName: 'clip', numArgs: 0, variableArgs: false },
|
||||
'W*': { fnName: 'eoClip', numArgs: 0, variableArgs: false },
|
||||
W: { id: OPS.clip, numArgs: 0, variableArgs: false },
|
||||
'W*': { id: OPS.eoClip, numArgs: 0, variableArgs: false },
|
||||
|
||||
// Text
|
||||
BT: { fnName: 'beginText', numArgs: 0, variableArgs: false },
|
||||
ET: { fnName: 'endText', numArgs: 0, variableArgs: false },
|
||||
Tc: { fnName: 'setCharSpacing', numArgs: 1, variableArgs: false },
|
||||
Tw: { fnName: 'setWordSpacing', numArgs: 1, variableArgs: false },
|
||||
Tz: { fnName: 'setHScale', numArgs: 1, variableArgs: false },
|
||||
TL: { fnName: 'setLeading', numArgs: 1, variableArgs: false },
|
||||
Tf: { fnName: 'setFont', numArgs: 2, variableArgs: false },
|
||||
Tr: { fnName: 'setTextRenderingMode', numArgs: 1, variableArgs: false },
|
||||
Ts: { fnName: 'setTextRise', numArgs: 1, variableArgs: false },
|
||||
Td: { fnName: 'moveText', numArgs: 2, variableArgs: false },
|
||||
TD: { fnName: 'setLeadingMoveText', numArgs: 2, variableArgs: false },
|
||||
Tm: { fnName: 'setTextMatrix', numArgs: 6, variableArgs: false },
|
||||
'T*': { fnName: 'nextLine', numArgs: 0, variableArgs: false },
|
||||
Tj: { fnName: 'showText', numArgs: 1, variableArgs: false },
|
||||
TJ: { fnName: 'showSpacedText', numArgs: 1, variableArgs: false },
|
||||
'\'': { fnName: 'nextLineShowText', numArgs: 1, variableArgs: false },
|
||||
'"': { fnName: 'nextLineSetSpacingShowText', numArgs: 3,
|
||||
BT: { id: OPS.beginText, numArgs: 0, variableArgs: false },
|
||||
ET: { id: OPS.endText, numArgs: 0, variableArgs: false },
|
||||
Tc: { id: OPS.setCharSpacing, numArgs: 1, variableArgs: false },
|
||||
Tw: { id: OPS.setWordSpacing, numArgs: 1, variableArgs: false },
|
||||
Tz: { id: OPS.setHScale, numArgs: 1, variableArgs: false },
|
||||
TL: { id: OPS.setLeading, numArgs: 1, variableArgs: false },
|
||||
Tf: { id: OPS.setFont, numArgs: 2, variableArgs: false },
|
||||
Tr: { id: OPS.setTextRenderingMode, numArgs: 1, variableArgs: false },
|
||||
Ts: { id: OPS.setTextRise, numArgs: 1, variableArgs: false },
|
||||
Td: { id: OPS.moveText, numArgs: 2, variableArgs: false },
|
||||
TD: { id: OPS.setLeadingMoveText, numArgs: 2, variableArgs: false },
|
||||
Tm: { id: OPS.setTextMatrix, numArgs: 6, variableArgs: false },
|
||||
'T*': { id: OPS.nextLine, numArgs: 0, variableArgs: false },
|
||||
Tj: { id: OPS.showText, numArgs: 1, variableArgs: false },
|
||||
TJ: { id: OPS.showSpacedText, numArgs: 1, variableArgs: false },
|
||||
'\'': { id: OPS.nextLineShowText, numArgs: 1, variableArgs: false },
|
||||
'"': { id: OPS.nextLineSetSpacingShowText, numArgs: 3,
|
||||
variableArgs: false },
|
||||
|
||||
// Type3 fonts
|
||||
d0: { fnName: 'setCharWidth', numArgs: 2, variableArgs: false },
|
||||
d1: { fnName: 'setCharWidthAndBounds', numArgs: 6, variableArgs: false },
|
||||
d0: { id: OPS.setCharWidth, numArgs: 2, variableArgs: false },
|
||||
d1: { id: OPS.setCharWidthAndBounds, numArgs: 6, variableArgs: false },
|
||||
|
||||
// Color
|
||||
CS: { fnName: 'setStrokeColorSpace', numArgs: 1, variableArgs: false },
|
||||
cs: { fnName: 'setFillColorSpace', numArgs: 1, variableArgs: false },
|
||||
SC: { fnName: 'setStrokeColor', numArgs: 4, variableArgs: true },
|
||||
SCN: { fnName: 'setStrokeColorN', numArgs: 33, variableArgs: true },
|
||||
sc: { fnName: 'setFillColor', numArgs: 4, variableArgs: true },
|
||||
scn: { fnName: 'setFillColorN', numArgs: 33, variableArgs: true },
|
||||
G: { fnName: 'setStrokeGray', numArgs: 1, variableArgs: false },
|
||||
g: { fnName: 'setFillGray', numArgs: 1, variableArgs: false },
|
||||
RG: { fnName: 'setStrokeRGBColor', numArgs: 3, variableArgs: false },
|
||||
rg: { fnName: 'setFillRGBColor', numArgs: 3, variableArgs: false },
|
||||
K: { fnName: 'setStrokeCMYKColor', numArgs: 4, variableArgs: false },
|
||||
k: { fnName: 'setFillCMYKColor', numArgs: 4, variableArgs: false },
|
||||
CS: { id: OPS.setStrokeColorSpace, numArgs: 1, variableArgs: false },
|
||||
cs: { id: OPS.setFillColorSpace, numArgs: 1, variableArgs: false },
|
||||
SC: { id: OPS.setStrokeColor, numArgs: 4, variableArgs: true },
|
||||
SCN: { id: OPS.setStrokeColorN, numArgs: 33, variableArgs: true },
|
||||
sc: { id: OPS.setFillColor, numArgs: 4, variableArgs: true },
|
||||
scn: { id: OPS.setFillColorN, numArgs: 33, variableArgs: true },
|
||||
G: { id: OPS.setStrokeGray, numArgs: 1, variableArgs: false },
|
||||
g: { id: OPS.setFillGray, numArgs: 1, variableArgs: false },
|
||||
RG: { id: OPS.setStrokeRGBColor, numArgs: 3, variableArgs: false },
|
||||
rg: { id: OPS.setFillRGBColor, numArgs: 3, variableArgs: false },
|
||||
K: { id: OPS.setStrokeCMYKColor, numArgs: 4, variableArgs: false },
|
||||
k: { id: OPS.setFillCMYKColor, numArgs: 4, variableArgs: false },
|
||||
|
||||
// Shading
|
||||
sh: { fnName: 'shadingFill', numArgs: 1, variableArgs: false },
|
||||
sh: { id: OPS.shadingFill, numArgs: 1, variableArgs: false },
|
||||
|
||||
// Images
|
||||
BI: { fnName: 'beginInlineImage', numArgs: 0, variableArgs: false },
|
||||
ID: { fnName: 'beginImageData', numArgs: 0, variableArgs: false },
|
||||
EI: { fnName: 'endInlineImage', numArgs: 1, variableArgs: false },
|
||||
BI: { id: OPS.beginInlineImage, numArgs: 0, variableArgs: false },
|
||||
ID: { id: OPS.beginImageData, numArgs: 0, variableArgs: false },
|
||||
EI: { id: OPS.endInlineImage, numArgs: 1, variableArgs: false },
|
||||
|
||||
// XObjects
|
||||
Do: { fnName: 'paintXObject', numArgs: 1, variableArgs: false },
|
||||
MP: { fnName: 'markPoint', numArgs: 1, variableArgs: false },
|
||||
DP: { fnName: 'markPointProps', numArgs: 2, variableArgs: false },
|
||||
BMC: { fnName: 'beginMarkedContent', numArgs: 1, variableArgs: false },
|
||||
BDC: { fnName: 'beginMarkedContentProps', numArgs: 2, variableArgs: false },
|
||||
EMC: { fnName: 'endMarkedContent', numArgs: 0, variableArgs: false },
|
||||
Do: { id: OPS.paintXObject, numArgs: 1, variableArgs: false },
|
||||
MP: { id: OPS.markPoint, numArgs: 1, variableArgs: false },
|
||||
DP: { id: OPS.markPointProps, numArgs: 2, variableArgs: false },
|
||||
BMC: { id: OPS.beginMarkedContent, numArgs: 1, variableArgs: false },
|
||||
BDC: { id: OPS.beginMarkedContentProps, numArgs: 2,
|
||||
variableArgs: false },
|
||||
EMC: { id: OPS.endMarkedContent, numArgs: 0, variableArgs: false },
|
||||
|
||||
// Compatibility
|
||||
BX: { fnName: 'beginCompat', numArgs: 0, variableArgs: false },
|
||||
EX: { fnName: 'endCompat', numArgs: 0, variableArgs: false },
|
||||
BX: { id: OPS.beginCompat, numArgs: 0, variableArgs: false },
|
||||
EX: { id: OPS.endCompat, numArgs: 0, variableArgs: false },
|
||||
|
||||
// (reserved partial commands for the lexer)
|
||||
BM: null,
|
||||
|
|
@ -218,17 +219,17 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
// There is also a group colorspace, but since we put everything in
|
||||
// RGB I'm not sure we need it.
|
||||
}
|
||||
operatorList.addOp('beginGroup', [groupOptions]);
|
||||
operatorList.addOp(OPS.beginGroup, [groupOptions]);
|
||||
}
|
||||
|
||||
operatorList.addOp('paintFormXObjectBegin', [matrix, bbox]);
|
||||
operatorList.addOp(OPS.paintFormXObjectBegin, [matrix, bbox]);
|
||||
|
||||
this.getOperatorList(xobj, xobj.dict.get('Resources') || resources,
|
||||
operatorList);
|
||||
operatorList.addOp('paintFormXObjectEnd', []);
|
||||
operatorList.addOp(OPS.paintFormXObjectEnd, []);
|
||||
|
||||
if (group) {
|
||||
operatorList.addOp('endGroup', [groupOptions]);
|
||||
operatorList.addOp(OPS.endGroup, [groupOptions]);
|
||||
}
|
||||
},
|
||||
|
||||
|
|
@ -259,7 +260,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
var decode = dict.get('Decode', 'D');
|
||||
var inverseDecode = !!decode && decode[0] > 0;
|
||||
|
||||
operatorList.addOp('paintImageMaskXObject',
|
||||
operatorList.addOp(OPS.paintImageMaskXObject,
|
||||
[PDFImage.createMask(imgArray, width, height,
|
||||
inverseDecode)]
|
||||
);
|
||||
|
|
@ -277,7 +278,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
var imageObj = new PDFImage(this.xref, resources, image,
|
||||
inline, null, null);
|
||||
var imgData = imageObj.getImageData();
|
||||
operatorList.addOp('paintInlineImageXObject', [imgData]);
|
||||
operatorList.addOp(OPS.paintInlineImageXObject, [imgData]);
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -291,7 +292,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
if (!softMask && !mask && image instanceof JpegStream &&
|
||||
image.isNativelySupported(this.xref, resources)) {
|
||||
// These JPEGs don't need any more processing so we can just send it.
|
||||
operatorList.addOp('paintJpegXObject', args);
|
||||
operatorList.addOp(OPS.paintJpegXObject, args);
|
||||
this.handler.send(
|
||||
'obj', [objId, this.pageIndex, 'JpegStream', image.getIR()]);
|
||||
return;
|
||||
|
|
@ -303,7 +304,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
self.handler.send('obj', [objId, self.pageIndex, 'Image', imgData]);
|
||||
}, self.handler, self.xref, resources, image, inline);
|
||||
|
||||
operatorList.addOp('paintImageXObject', args);
|
||||
operatorList.addOp(OPS.paintImageXObject, args);
|
||||
},
|
||||
|
||||
handleTilingType: function PartialEvaluator_handleTilingType(
|
||||
|
|
@ -442,7 +443,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
setGStateForKey(gStateObj, key, value);
|
||||
}
|
||||
|
||||
operatorList.addOp('setGState', [gStateObj]);
|
||||
operatorList.addOp(OPS.setGState, [gStateObj]);
|
||||
},
|
||||
|
||||
loadFont: function PartialEvaluator_loadFont(fontName, font, xref,
|
||||
|
|
@ -557,7 +558,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
continue;
|
||||
}
|
||||
|
||||
var fn = opSpec.fnName;
|
||||
var fn = opSpec.id;
|
||||
|
||||
// Validate the number of arguments for the command
|
||||
if (opSpec.variableArgs) {
|
||||
|
|
@ -640,7 +641,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
var loadedName = self.handleSetFont(resources, args, null,
|
||||
operatorList);
|
||||
operatorList.addDependency(loadedName);
|
||||
fn = 'setFont';
|
||||
fn = OPS.setFont;
|
||||
args[0] = loadedName;
|
||||
} else if (cmd == 'EI') {
|
||||
self.buildPaintImageXObject(resources, args[0], true, operatorList);
|
||||
|
|
@ -675,11 +676,11 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
|
||||
switch (fn) {
|
||||
// Parse the ColorSpace data to a raw format.
|
||||
case 'setFillColorSpace':
|
||||
case 'setStrokeColorSpace':
|
||||
case OPS.setFillColorSpace:
|
||||
case OPS.setStrokeColorSpace:
|
||||
args = [ColorSpace.parseToIR(args[0], xref, resources)];
|
||||
break;
|
||||
case 'shadingFill':
|
||||
case OPS.shadingFill:
|
||||
var shadingRes = resources.get('Shading');
|
||||
if (!shadingRes)
|
||||
error('No shading resource found');
|
||||
|
|
@ -692,9 +693,9 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
shading, null, xref, resources);
|
||||
var patternIR = shadingFill.getIR();
|
||||
args = [patternIR];
|
||||
fn = 'shadingFill';
|
||||
fn = OPS.shadingFill;
|
||||
break;
|
||||
case 'setGState':
|
||||
case OPS.setGState:
|
||||
var dictName = args[0];
|
||||
var extGState = resources.get('ExtGState');
|
||||
|
||||
|
|
@ -1330,6 +1331,18 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
PartialEvaluator.optimizeQueue =
|
||||
function PartialEvaluator_optimizeQueue(queue) {
|
||||
|
||||
function squash(array, index, howMany, element) {
|
||||
if (isArray(array)) {
|
||||
array.splice(index, howMany, element);
|
||||
} else {
|
||||
// Replace the element.
|
||||
array[index] = element;
|
||||
// Shift everything after the element up.
|
||||
var sub = array.subarray(index + howMany);
|
||||
array.set(sub, index + 1);
|
||||
}
|
||||
}
|
||||
|
||||
var fnArray = queue.fnArray, argsArray = queue.argsArray;
|
||||
// grouping paintInlineImageXObject's into paintInlineImageXObjectGroup
|
||||
// searching for (save, transform, paintInlineImageXObject, restore)+
|
||||
|
|
@ -1337,10 +1350,10 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
var MAX_IMAGES_IN_INLINE_IMAGES_BLOCK = 200;
|
||||
var MAX_WIDTH = 1000;
|
||||
var IMAGE_PADDING = 1;
|
||||
for (var i = 0, ii = fnArray.length; i < ii; i++) {
|
||||
if (fnArray[i] === 'paintInlineImageXObject' &&
|
||||
fnArray[i - 2] === 'save' && fnArray[i - 1] === 'transform' &&
|
||||
fnArray[i + 1] === 'restore') {
|
||||
for (var i = 0, ii = argsArray.length; i < ii; i++) {
|
||||
if (fnArray[i] === OPS.paintInlineImageXObject &&
|
||||
fnArray[i - 2] === OPS.save && fnArray[i - 1] === OPS.transform &&
|
||||
fnArray[i + 1] === OPS.restore) {
|
||||
var j = i - 2;
|
||||
for (i += 2; i < ii && fnArray[i - 4] === fnArray[i]; i++) {
|
||||
}
|
||||
|
|
@ -1405,21 +1418,21 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
}
|
||||
}
|
||||
// replacing queue items
|
||||
fnArray.splice(j, count * 4, ['paintInlineImageXObjectGroup']);
|
||||
squash(fnArray, j, count * 4, OPS.paintInlineImageXObjectGroup);
|
||||
argsArray.splice(j, count * 4,
|
||||
[{width: imgWidth, height: imgHeight, data: imgData}, map]);
|
||||
i = j;
|
||||
ii = fnArray.length;
|
||||
ii = argsArray.length;
|
||||
}
|
||||
}
|
||||
// grouping paintImageMaskXObject's into paintImageMaskXObjectGroup
|
||||
// searching for (save, transform, paintImageMaskXObject, restore)+
|
||||
var MIN_IMAGES_IN_MASKS_BLOCK = 10;
|
||||
var MAX_IMAGES_IN_MASKS_BLOCK = 100;
|
||||
for (var i = 0, ii = fnArray.length; i < ii; i++) {
|
||||
if (fnArray[i] === 'paintImageMaskXObject' &&
|
||||
fnArray[i - 2] === 'save' && fnArray[i - 1] === 'transform' &&
|
||||
fnArray[i + 1] === 'restore') {
|
||||
for (var i = 0, ii = argsArray.length; i < ii; i++) {
|
||||
if (fnArray[i] === OPS.paintImageMaskXObject &&
|
||||
fnArray[i - 2] === OPS.save && fnArray[i - 1] === OPS.transform &&
|
||||
fnArray[i + 1] === OPS.restore) {
|
||||
var j = i - 2;
|
||||
for (i += 2; i < ii && fnArray[i - 4] === fnArray[i]; i++) {
|
||||
}
|
||||
|
|
@ -1436,10 +1449,10 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
height: maskParams.height, transform: transform});
|
||||
}
|
||||
// replacing queue items
|
||||
fnArray.splice(j, count * 4, ['paintImageMaskXObjectGroup']);
|
||||
squash(fnArray, j, count * 4, OPS.paintImageMaskXObjectGroup);
|
||||
argsArray.splice(j, count * 4, [images]);
|
||||
i = j;
|
||||
ii = fnArray.length;
|
||||
ii = argsArray.length;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
|
@ -1448,25 +1461,40 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
|
|||
return PartialEvaluator;
|
||||
})();
|
||||
|
||||
|
||||
var OperatorList = (function OperatorListClosure() {
|
||||
var CHUNK_SIZE = 100;
|
||||
|
||||
function OperatorList(messageHandler, pageIndex) {
|
||||
this.messageHandler = messageHandler;
|
||||
this.fnArray = [];
|
||||
// When there isn't a message handler the fn array needs to be able to grow
|
||||
// since we can't flush the operators.
|
||||
if (messageHandler) {
|
||||
this.fnArray = new Uint8Array(CHUNK_SIZE);
|
||||
} else {
|
||||
this.fnArray = [];
|
||||
}
|
||||
this.argsArray = [];
|
||||
this.dependencies = {},
|
||||
this.pageIndex = pageIndex;
|
||||
this.fnIndex = 0;
|
||||
}
|
||||
|
||||
OperatorList.prototype = {
|
||||
|
||||
get length() {
|
||||
return this.argsArray.length;
|
||||
},
|
||||
|
||||
addOp: function(fn, args) {
|
||||
this.fnArray.push(fn);
|
||||
this.argsArray.push(args);
|
||||
if (this.messageHandler && this.fnArray.length >= CHUNK_SIZE) {
|
||||
this.flush();
|
||||
if (this.messageHandler) {
|
||||
this.fnArray[this.fnIndex++] = fn;
|
||||
this.argsArray.push(args);
|
||||
if (this.fnIndex >= CHUNK_SIZE) {
|
||||
this.flush();
|
||||
}
|
||||
} else {
|
||||
this.fnArray.push(fn);
|
||||
this.argsArray.push(args);
|
||||
}
|
||||
},
|
||||
|
||||
|
|
@ -1475,7 +1503,7 @@ var OperatorList = (function OperatorListClosure() {
|
|||
return;
|
||||
}
|
||||
this.dependencies[dependency] = true;
|
||||
this.addOp('dependency', [dependency]);
|
||||
this.addOp(OPS.dependency, [dependency]);
|
||||
},
|
||||
|
||||
addDependencies: function(dependencies) {
|
||||
|
|
@ -1485,15 +1513,17 @@ var OperatorList = (function OperatorListClosure() {
|
|||
},
|
||||
|
||||
addOpList: function(opList) {
|
||||
Util.concatenateToArray(this.fnArray, opList.fnArray);
|
||||
Util.concatenateToArray(this.argsArray, opList.argsArray);
|
||||
Util.extendObj(this.dependencies, opList.dependencies);
|
||||
for (var i = 0, ii = opList.length; i < ii; i++) {
|
||||
this.addOp(opList.fnArray[i], opList.argsArray[i]);
|
||||
}
|
||||
},
|
||||
|
||||
getIR: function() {
|
||||
return {
|
||||
fnArray: this.fnArray,
|
||||
argsArray: this.argsArray
|
||||
argsArray: this.argsArray,
|
||||
length: this.length
|
||||
};
|
||||
},
|
||||
|
||||
|
|
@ -1503,12 +1533,13 @@ var OperatorList = (function OperatorListClosure() {
|
|||
operatorList: {
|
||||
fnArray: this.fnArray,
|
||||
argsArray: this.argsArray,
|
||||
lastChunk: lastChunk
|
||||
lastChunk: lastChunk,
|
||||
length: this.length
|
||||
},
|
||||
pageIndex: this.pageIndex
|
||||
});
|
||||
this.dependencies = [];
|
||||
this.fnArray = [];
|
||||
this.fnIndex = 0;
|
||||
this.argsArray = [];
|
||||
}
|
||||
};
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue