mirror of
https://github.com/mozilla/pdf.js.git
synced 2025-04-22 16:18:08 +02:00
Merge upstream and change test pdf file.
This commit is contained in:
Brendan Dahl
commit
faa202df1e
24 changed files with 4306 additions and 635 deletions
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@ -445,7 +445,7 @@ var CanvasGraphics = (function canvasGraphics() {
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this.save();
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ctx.scale(fontSize, fontSize);
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ctx.transform.apply(ctx, fontMatrix);
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this.executeIRQueue(glyph.IRQueue);
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this.executeIRQueue(glyph.codeIRQueue);
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this.restore();
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var transformed = Util.applyTransform([glyph.width, 0], fontMatrix);
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@ -546,7 +546,9 @@ var CanvasGraphics = (function canvasGraphics() {
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setStrokeColor: function canvasGraphicsSetStrokeColor(/*...*/) {
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var cs = this.current.strokeColorSpace;
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var color = cs.getRgb(arguments);
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this.setStrokeRGBColor.apply(this, color);
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var color = Util.makeCssRgb.apply(null, cs.getRgb(arguments));
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this.ctx.strokeStyle = color;
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this.current.strokeColor = color;
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},
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getColorN_IR_Pattern: function canvasGraphicsGetColorN_IR_Pattern(IR, cs) {
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if (IR[0] == 'TilingPattern') {
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@ -581,8 +583,9 @@ var CanvasGraphics = (function canvasGraphics() {
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},
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setFillColor: function canvasGraphicsSetFillColor(/*...*/) {
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var cs = this.current.fillColorSpace;
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var color = cs.getRgb(arguments);
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this.setFillRGBColor.apply(this, color);
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var color = Util.makeCssRgb.apply(null, cs.getRgb(arguments));
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this.ctx.fillStyle = color;
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this.current.fillColor = color;
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},
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setFillColorN_IR: function canvasGraphicsSetFillColorN(/*...*/) {
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var cs = this.current.fillColorSpace;
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@ -594,27 +597,49 @@ var CanvasGraphics = (function canvasGraphics() {
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}
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},
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setStrokeGray: function canvasGraphicsSetStrokeGray(gray) {
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this.setStrokeRGBColor(gray, gray, gray);
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if (!(this.current.strokeColorSpace instanceof DeviceGrayCS))
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this.current.strokeColorSpace = new DeviceGrayCS();
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var color = Util.makeCssRgb(gray, gray, gray);
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this.ctx.strokeStyle = color;
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this.current.strokeColor = color;
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},
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setFillGray: function canvasGraphicsSetFillGray(gray) {
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this.setFillRGBColor(gray, gray, gray);
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if (!(this.current.fillColorSpace instanceof DeviceGrayCS))
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this.current.fillColorSpace = new DeviceGrayCS();
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var color = Util.makeCssRgb(gray, gray, gray);
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this.ctx.fillStyle = color;
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this.current.fillColor = color;
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},
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setStrokeRGBColor: function canvasGraphicsSetStrokeRGBColor(r, g, b) {
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if (!(this.current.strokeColorSpace instanceof DeviceRgbCS))
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this.current.strokeColorSpace = new DeviceRgbCS();
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var color = Util.makeCssRgb(r, g, b);
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this.ctx.strokeStyle = color;
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this.current.strokeColor = color;
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},
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setFillRGBColor: function canvasGraphicsSetFillRGBColor(r, g, b) {
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if (!(this.current.fillColorSpace instanceof DeviceRgbCS))
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this.current.fillColorSpace = new DeviceRgbCS();
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var color = Util.makeCssRgb(r, g, b);
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this.ctx.fillStyle = color;
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this.current.fillColor = color;
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},
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setStrokeCMYKColor: function canvasGraphicsSetStrokeCMYKColor(c, m, y, k) {
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if (!(this.current.strokeColorSpace instanceof DeviceCmykCS))
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this.current.strokeColorSpace = new DeviceCmykCS();
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var color = Util.makeCssCmyk(c, m, y, k);
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this.ctx.strokeStyle = color;
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this.current.strokeColor = color;
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},
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setFillCMYKColor: function canvasGraphicsSetFillCMYKColor(c, m, y, k) {
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if (!(this.current.fillColorSpace instanceof DeviceCmykCS))
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this.current.fillColorSpace = new DeviceCmykCS();
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var color = Util.makeCssCmyk(c, m, y, k);
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this.ctx.fillStyle = color;
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this.current.fillColor = color;
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@ -24,7 +24,7 @@ var ColorSpace = (function colorSpaceColorSpace() {
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constructor.parse = function colorSpaceParse(cs, xref, res) {
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var IR = constructor.parseToIR(cs, xref, res);
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if (IR instanceof SeparationCS)
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if (IR instanceof AlternateCS)
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return IR;
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return constructor.fromIR(IR);
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@ -50,11 +50,12 @@ var ColorSpace = (function colorSpaceColorSpace() {
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var hiVal = IR[2];
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var lookup = IR[3];
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return new IndexedCS(ColorSpace.fromIR(baseIndexedCS), hiVal, lookup);
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case 'SeparationCS':
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var alt = IR[1];
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var tintFnIR = IR[2];
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case 'AlternateCS':
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var numComps = IR[1];
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var alt = IR[2];
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var tintFnIR = IR[3];
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return new SeparationCS(ColorSpace.fromIR(alt),
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return new AlternateCS(numComps, ColorSpace.fromIR(alt),
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PDFFunction.fromIR(tintFnIR));
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default:
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error('Unkown name ' + name);
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@ -134,11 +135,17 @@ var ColorSpace = (function colorSpaceColorSpace() {
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var lookup = xref.fetchIfRef(cs[3]);
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return ['IndexedCS', baseIndexedCS, hiVal, lookup];
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case 'Separation':
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case 'DeviceN':
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var name = cs[1];
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var numComps = 1;
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if (isName(name))
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numComps = 1;
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else if (isArray(name))
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numComps = name.length;
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var alt = ColorSpace.parseToIR(cs[2], xref, res);
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var tintFnIR = PDFFunction.getIR(xref, xref.fetchIfRef(cs[3]));
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return ['SeparationCS', alt, tintFnIR];
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return ['AlternateCS', numComps, alt, tintFnIR];
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case 'Lab':
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case 'DeviceN':
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default:
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error('unimplemented color space object "' + mode + '"');
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}
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@ -151,33 +158,45 @@ var ColorSpace = (function colorSpaceColorSpace() {
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return constructor;
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})();
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var SeparationCS = (function separationCS() {
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function constructor(base, tintFn) {
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this.name = 'Separation';
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this.numComps = 1;
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this.defaultColor = [1];
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/**
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* Alternate color space handles both Separation and DeviceN color spaces. A
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* Separation color space is actually just a DeviceN with one color component.
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* Both color spaces use a tinting function to convert colors to a base color
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* space.
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*/
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var AlternateCS = (function alternateCS() {
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function constructor(numComps, base, tintFn) {
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this.name = 'Alternate';
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this.numComps = numComps;
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this.defaultColor = [];
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for (var i = 0; i < numComps; ++i)
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this.defaultColor.push(1);
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this.base = base;
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this.tintFn = tintFn;
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}
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constructor.prototype = {
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getRgb: function sepcs_getRgb(color) {
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getRgb: function altcs_getRgb(color) {
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var tinted = this.tintFn(color);
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return this.base.getRgb(tinted);
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},
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getRgbBuffer: function sepcs_getRgbBuffer(input, bits) {
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getRgbBuffer: function altcs_getRgbBuffer(input, bits) {
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var tintFn = this.tintFn;
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var base = this.base;
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var scale = 1 / ((1 << bits) - 1);
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var length = input.length;
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var pos = 0;
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var numComps = base.numComps;
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var baseBuf = new Uint8Array(numComps * length);
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var baseNumComps = base.numComps;
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var baseBuf = new Uint8Array(baseNumComps * length);
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var numComps = this.numComps;
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var scaled = new Array(numComps);
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for (var i = 0; i < length; ++i) {
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var scaled = input[i] * scale;
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var tinted = tintFn([scaled]);
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for (var j = 0; j < numComps; ++j)
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for (var i = 0; i < length; i += numComps) {
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for (var z = 0; z < numComps; ++z)
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scaled[z] = input[i + z] * scale;
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var tinted = tintFn(scaled);
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for (var j = 0; j < baseNumComps; ++j)
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baseBuf[pos++] = 255 * tinted[j];
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}
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return base.getRgbBuffer(baseBuf, 8);
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18
src/core.js
18
src/core.js
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@ -15,10 +15,6 @@ if (!globalScope.PDFJS) {
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globalScope.PDFJS = {};
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}
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// Temporarily disabling workers until 'localhost' FF bugfix lands:
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// https://bugzilla.mozilla.org/show_bug.cgi?id=683280
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globalScope.PDFJS.disableWorker = true;
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// getPdf()
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// Convenience function to perform binary Ajax GET
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// Usage: getPdf('http://...', callback)
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@ -471,6 +467,7 @@ var PDFDoc = (function pdfDoc() {
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this.objs = new PDFObjects();
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this.pageCache = [];
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this.fontsLoading = {};
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this.workerReadyPromise = new Promise('workerReady');
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// If worker support isn't disabled explicit and the browser has worker
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@ -484,7 +481,16 @@ var PDFDoc = (function pdfDoc() {
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throw 'No PDFJS.workerSrc specified';
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}
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var worker = new Worker(workerSrc);
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var worker;
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try {
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worker = new Worker(workerSrc);
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} catch (e) {
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// Some versions of FF can't create a worker on localhost, see:
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// https://bugzilla.mozilla.org/show_bug.cgi?id=683280
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globalScope.PDFJS.disableWorker = true;
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this.setupFakeWorker();
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return;
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}
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var messageHandler = new MessageHandler('main', worker);
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@ -505,8 +511,6 @@ var PDFDoc = (function pdfDoc() {
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} else {
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this.setupFakeWorker();
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}
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this.fontsLoading = {};
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}
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constructor.prototype = {
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|
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489
src/evaluator.js
489
src/evaluator.js
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@ -459,18 +459,183 @@ var PartialEvaluator = (function partialEvaluator() {
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};
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},
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extractEncoding: function partialEvaluatorExtractEncoding(dict,
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xref,
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properties) {
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var type = properties.type, encoding;
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if (properties.composite) {
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var defaultWidth = xref.fetchIfRef(dict.get('DW')) || 1000;
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properties.defaultWidth = defaultWidth;
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extractDataStructures: function
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partialEvaluatorExtractDataStructures(dict, baseDict,
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xref, properties) {
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// 9.10.2
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var toUnicode = dict.get('ToUnicode') ||
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baseDict.get('ToUnicode');
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if (toUnicode)
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properties.toUnicode = this.readToUnicode(toUnicode, xref);
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if (properties.composite) {
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// CIDSystemInfo helps to match CID to glyphs
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var cidSystemInfo = xref.fetchIfRef(dict.get('CIDSystemInfo'));
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if (isDict(cidSystemInfo)) {
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properties.cidSystemInfo = {
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registry: cidSystemInfo.get('Registry'),
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ordering: cidSystemInfo.get('Ordering'),
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supplement: cidSystemInfo.get('Supplement')
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};
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}
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var cidToGidMap = xref.fetchIfRef(dict.get('CIDToGIDMap'));
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if (isStream(cidToGidMap))
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properties.cidToGidMap = this.readCidToGidMap(cidToGidMap);
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}
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var differences = [];
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var baseEncoding = Encodings.StandardEncoding;
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var hasEncoding = dict.has('Encoding');
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if (hasEncoding) {
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var encoding = xref.fetchIfRef(dict.get('Encoding'));
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if (isDict(encoding)) {
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var baseName = encoding.get('BaseEncoding');
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if (baseName)
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baseEncoding = Encodings[baseName.name];
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// Load the differences between the base and original
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if (encoding.has('Differences')) {
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var diffEncoding = encoding.get('Differences');
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var index = 0;
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for (var j = 0, jj = diffEncoding.length; j < jj; j++) {
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var data = diffEncoding[j];
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if (isNum(data))
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index = data;
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else
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differences[index++] = data.name;
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}
|
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}
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} else if (isName(encoding)) {
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baseEncoding = Encodings[encoding.name];
|
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} else {
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error('Encoding is not a Name nor a Dict');
|
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}
|
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}
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properties.differences = differences;
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properties.baseEncoding = baseEncoding;
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properties.hasEncoding = hasEncoding;
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},
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|
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readToUnicode:
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function partialEvaluatorReadToUnicode(toUnicode, xref) {
|
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var cmapObj = xref.fetchIfRef(toUnicode);
|
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var charToUnicode = [];
|
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if (isName(cmapObj)) {
|
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var isIdentityMap = cmapObj.name.substr(0, 9) == 'Identity-';
|
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if (!isIdentityMap)
|
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error('ToUnicode file cmap translation not implemented');
|
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} else if (isStream(cmapObj)) {
|
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var tokens = [];
|
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var token = '';
|
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var beginArrayToken = {};
|
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|
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var cmap = cmapObj.getBytes(cmapObj.length);
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for (var i = 0, ii = cmap.length; i < ii; i++) {
|
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var byte = cmap[i];
|
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if (byte == 0x20 || byte == 0x0D || byte == 0x0A ||
|
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byte == 0x3C || byte == 0x5B || byte == 0x5D) {
|
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switch (token) {
|
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case 'usecmap':
|
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error('usecmap is not implemented');
|
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break;
|
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|
||||
case 'beginbfchar':
|
||||
case 'beginbfrange':
|
||||
case 'begincidchar':
|
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case 'begincidrange':
|
||||
token = '';
|
||||
tokens = [];
|
||||
break;
|
||||
|
||||
case 'endcidrange':
|
||||
case 'endbfrange':
|
||||
for (var j = 0, jj = tokens.length; j < jj; j += 3) {
|
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var startRange = tokens[j];
|
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var endRange = tokens[j + 1];
|
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var code = tokens[j + 2];
|
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while (startRange <= endRange) {
|
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charToUnicode[startRange] = code++;
|
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++startRange;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case 'endcidchar':
|
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case 'endbfchar':
|
||||
for (var j = 0, jj = tokens.length; j < jj; j += 2) {
|
||||
var index = tokens[j];
|
||||
var code = tokens[j + 1];
|
||||
charToUnicode[index] = code;
|
||||
}
|
||||
break;
|
||||
|
||||
case '':
|
||||
break;
|
||||
|
||||
default:
|
||||
if (token[0] >= '0' && token[0] <= '9')
|
||||
token = parseInt(token, 10); // a number
|
||||
tokens.push(token);
|
||||
token = '';
|
||||
}
|
||||
switch (byte) {
|
||||
case 0x5B:
|
||||
// begin list parsing
|
||||
tokens.push(beginArrayToken);
|
||||
break;
|
||||
case 0x5D:
|
||||
// collect array items
|
||||
var items = [], item;
|
||||
while (tokens.length &&
|
||||
(item = tokens.pop()) != beginArrayToken)
|
||||
items.unshift(item);
|
||||
tokens.push(items);
|
||||
break;
|
||||
}
|
||||
} else if (byte == 0x3E) {
|
||||
if (token.length) {
|
||||
// parsing hex number
|
||||
tokens.push(parseInt(token, 16));
|
||||
token = '';
|
||||
}
|
||||
} else {
|
||||
token += String.fromCharCode(byte);
|
||||
}
|
||||
}
|
||||
}
|
||||
return charToUnicode;
|
||||
},
|
||||
readCidToGidMap:
|
||||
function partialEvaluatorReadCidToGidMap(cidToGidStream) {
|
||||
// Extract the encoding from the CIDToGIDMap
|
||||
var glyphsData = cidToGidStream.getBytes();
|
||||
|
||||
// Set encoding 0 to later verify the font has an encoding
|
||||
var result = [];
|
||||
for (var j = 0, jj = glyphsData.length; j < jj; j++) {
|
||||
var glyphID = (glyphsData[j++] << 8) | glyphsData[j];
|
||||
if (glyphID == 0)
|
||||
continue;
|
||||
|
||||
var code = j >> 1;
|
||||
result[code] = glyphID;
|
||||
}
|
||||
return result;
|
||||
},
|
||||
|
||||
extractWidths: function partialEvaluatorWidths(dict,
|
||||
xref,
|
||||
descriptor,
|
||||
properties) {
|
||||
var glyphsWidths = [];
|
||||
var defaultWidth = 0;
|
||||
if (properties.composite) {
|
||||
defaultWidth = xref.fetchIfRef(dict.get('DW')) || 1000;
|
||||
|
||||
var glyphsWidths = {};
|
||||
var widths = xref.fetchIfRef(dict.get('W'));
|
||||
if (widths) {
|
||||
var start = 0;
|
||||
var start = 0, end = 0;
|
||||
for (var i = 0, ii = widths.length; i < ii; i++) {
|
||||
var code = widths[i];
|
||||
if (isArray(code)) {
|
||||
|
|
@ -487,247 +652,42 @@ var PartialEvaluator = (function partialEvaluator() {
|
|||
}
|
||||
}
|
||||
}
|
||||
properties.widths = glyphsWidths;
|
||||
|
||||
// Glyph ids are big-endian 2-byte values
|
||||
encoding = properties.encoding;
|
||||
|
||||
// CIDSystemInfo might help to match width and glyphs
|
||||
var cidSystemInfo = dict.get('CIDSystemInfo');
|
||||
if (isDict(cidSystemInfo)) {
|
||||
properties.cidSystemInfo = {
|
||||
registry: cidSystemInfo.get('Registry'),
|
||||
ordering: cidSystemInfo.get('Ordering'),
|
||||
supplement: cidSystemInfo.get('Supplement')
|
||||
};
|
||||
}
|
||||
|
||||
var cidToGidMap = dict.get('CIDToGIDMap');
|
||||
if (!cidToGidMap || !isRef(cidToGidMap)) {
|
||||
|
||||
|
||||
return Object.create(GlyphsUnicode);
|
||||
}
|
||||
|
||||
// Extract the encoding from the CIDToGIDMap
|
||||
var glyphsStream = xref.fetchIfRef(cidToGidMap);
|
||||
var glyphsData = glyphsStream.getBytes(0);
|
||||
|
||||
// Set encoding 0 to later verify the font has an encoding
|
||||
encoding[0] = { unicode: 0, width: 0 };
|
||||
for (var j = 0, jj = glyphsData.length; j < jj; j++) {
|
||||
var glyphID = (glyphsData[j++] << 8) | glyphsData[j];
|
||||
if (glyphID == 0)
|
||||
continue;
|
||||
|
||||
var code = j >> 1;
|
||||
var width = glyphsWidths[code];
|
||||
encoding[code] = {
|
||||
unicode: glyphID,
|
||||
width: isNum(width) ? width : defaultWidth
|
||||
};
|
||||
}
|
||||
|
||||
return Object.create(GlyphsUnicode);
|
||||
}
|
||||
|
||||
var differences = properties.differences;
|
||||
var map = properties.encoding;
|
||||
var baseEncoding = null;
|
||||
if (dict.has('Encoding')) {
|
||||
encoding = xref.fetchIfRef(dict.get('Encoding'));
|
||||
if (isDict(encoding)) {
|
||||
var baseName = encoding.get('BaseEncoding');
|
||||
if (baseName)
|
||||
baseEncoding = Encodings[baseName.name].slice();
|
||||
|
||||
// Load the differences between the base and original
|
||||
if (encoding.has('Differences')) {
|
||||
var diffEncoding = encoding.get('Differences');
|
||||
var index = 0;
|
||||
for (var j = 0, jj = diffEncoding.length; j < jj; j++) {
|
||||
var data = diffEncoding[j];
|
||||
if (isNum(data))
|
||||
index = data;
|
||||
else
|
||||
differences[index++] = data.name;
|
||||
}
|
||||
}
|
||||
} else if (isName(encoding)) {
|
||||
baseEncoding = Encodings[encoding.name].slice();
|
||||
} else {
|
||||
var firstChar = properties.firstChar;
|
||||
var widths = xref.fetchIfRef(dict.get('Widths'));
|
||||
if (widths) {
|
||||
var j = firstChar;
|
||||
for (var i = 0, ii = widths.length; i < ii; i++)
|
||||
glyphsWidths[j++] = widths[i];
|
||||
defaultWidth = parseFloat(descriptor.get('MissingWidth')) || 0;
|
||||
} else {
|
||||
error('Encoding is not a Name nor a Dict');
|
||||
}
|
||||
}
|
||||
// Trying get the BaseFont metrics (see comment above).
|
||||
var baseFontName = dict.get('BaseFont');
|
||||
if (isName(baseFontName)) {
|
||||
var metrics = this.getBaseFontMetrics(baseFontName.name);
|
||||
|
||||
if (!baseEncoding) {
|
||||
switch (type) {
|
||||
case 'TrueType':
|
||||
baseEncoding = Encodings.WinAnsiEncoding.slice();
|
||||
break;
|
||||
case 'Type1':
|
||||
case 'Type3':
|
||||
baseEncoding = Encodings.StandardEncoding.slice();
|
||||
break;
|
||||
default:
|
||||
warn('Unknown type of font: ' + type);
|
||||
baseEncoding = [];
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// merge in the differences
|
||||
var firstChar = properties.firstChar;
|
||||
var lastChar = properties.lastChar;
|
||||
var widths = properties.widths || [];
|
||||
var glyphs = {};
|
||||
for (var i = firstChar; i <= lastChar; i++) {
|
||||
var glyph = differences[i];
|
||||
var replaceGlyph = true;
|
||||
if (!glyph) {
|
||||
glyph = baseEncoding[i] || i;
|
||||
replaceGlyph = false;
|
||||
}
|
||||
var index = GlyphsUnicode[glyph] || i;
|
||||
var width = widths[i] || widths[glyph];
|
||||
map[i] = {
|
||||
unicode: index,
|
||||
width: isNum(width) ? width : properties.defaultWidth
|
||||
};
|
||||
|
||||
if (replaceGlyph || !glyphs[glyph])
|
||||
glyphs[glyph] = map[i];
|
||||
if (replaceGlyph || !glyphs[index])
|
||||
glyphs[index] = map[i];
|
||||
|
||||
// If there is no file, the character mapping can't be modified
|
||||
// but this is unlikely that there is any standard encoding with
|
||||
// chars below 0x1f, so that's fine.
|
||||
if (!properties.file)
|
||||
continue;
|
||||
|
||||
if (index <= 0x1f || (index >= 127 && index <= 255))
|
||||
map[i].unicode += kCmapGlyphOffset;
|
||||
}
|
||||
|
||||
if (type == 'TrueType' && dict.has('ToUnicode') && differences) {
|
||||
var cmapObj = dict.get('ToUnicode');
|
||||
if (isRef(cmapObj)) {
|
||||
cmapObj = xref.fetch(cmapObj);
|
||||
}
|
||||
if (isName(cmapObj)) {
|
||||
error('ToUnicode file cmap translation not implemented');
|
||||
} else if (isStream(cmapObj)) {
|
||||
var tokens = [];
|
||||
var token = '';
|
||||
var beginArrayToken = {};
|
||||
|
||||
var cmap = cmapObj.getBytes(cmapObj.length);
|
||||
for (var i = 0, ii = cmap.length; i < ii; i++) {
|
||||
var byte = cmap[i];
|
||||
if (byte == 0x20 || byte == 0x0D || byte == 0x0A ||
|
||||
byte == 0x3C || byte == 0x5B || byte == 0x5D) {
|
||||
switch (token) {
|
||||
case 'usecmap':
|
||||
error('usecmap is not implemented');
|
||||
break;
|
||||
|
||||
case 'beginbfchar':
|
||||
case 'beginbfrange':
|
||||
case 'begincidchar':
|
||||
case 'begincidrange':
|
||||
token = '';
|
||||
tokens = [];
|
||||
break;
|
||||
|
||||
case 'endcidrange':
|
||||
case 'endbfrange':
|
||||
for (var j = 0, jj = tokens.length; j < jj; j += 3) {
|
||||
var startRange = tokens[j];
|
||||
var endRange = tokens[j + 1];
|
||||
var code = tokens[j + 2];
|
||||
while (startRange < endRange) {
|
||||
var mapping = map[startRange] || {};
|
||||
mapping.unicode = code++;
|
||||
map[startRange] = mapping;
|
||||
++startRange;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case 'endcidchar':
|
||||
case 'endbfchar':
|
||||
for (var j = 0, jj = tokens.length; j < jj; j += 2) {
|
||||
var index = tokens[j];
|
||||
var code = tokens[j + 1];
|
||||
var mapping = map[index] || {};
|
||||
mapping.unicode = code;
|
||||
map[index] = mapping;
|
||||
}
|
||||
break;
|
||||
|
||||
case '':
|
||||
break;
|
||||
|
||||
default:
|
||||
if (token[0] >= '0' && token[0] <= '9')
|
||||
token = parseInt(token, 10); // a number
|
||||
tokens.push(token);
|
||||
token = '';
|
||||
}
|
||||
switch (byte) {
|
||||
case 0x5B:
|
||||
// begin list parsing
|
||||
tokens.push(beginArrayToken);
|
||||
break;
|
||||
case 0x5D:
|
||||
// collect array items
|
||||
var items = [], item;
|
||||
while (tokens.length &&
|
||||
(item = tokens.pop()) != beginArrayToken)
|
||||
items.unshift(item);
|
||||
tokens.push(items);
|
||||
break;
|
||||
}
|
||||
} else if (byte == 0x3E) {
|
||||
if (token.length) {
|
||||
// parsing hex number
|
||||
tokens.push(parseInt(token, 16));
|
||||
token = '';
|
||||
}
|
||||
} else {
|
||||
token += String.fromCharCode(byte);
|
||||
}
|
||||
glyphsWidths = metrics.widths;
|
||||
defaultWidth = metrics.defaultWidth;
|
||||
}
|
||||
}
|
||||
}
|
||||
return glyphs;
|
||||
|
||||
properties.defaultWidth = defaultWidth;
|
||||
properties.widths = glyphsWidths;
|
||||
},
|
||||
|
||||
getBaseFontMetricsAndMap: function getBaseFontMetricsAndMap(name) {
|
||||
var map = {};
|
||||
if (/^Symbol(-?(Bold|Italic))*$/.test(name)) {
|
||||
// special case for symbols
|
||||
var encoding = Encodings.symbolsEncoding.slice();
|
||||
for (var i = 0, n = encoding.length, j; i < n; i++) {
|
||||
j = encoding[i];
|
||||
if (!j)
|
||||
continue;
|
||||
map[i] = GlyphsUnicode[j] || 0;
|
||||
}
|
||||
}
|
||||
|
||||
var defaultWidth = 0;
|
||||
var widths = Metrics[stdFontMap[name] || name];
|
||||
if (isNum(widths)) {
|
||||
defaultWidth = widths;
|
||||
widths = null;
|
||||
getBaseFontMetrics: function getBaseFontMetrics(name) {
|
||||
var defaultWidth = 0, widths = [];
|
||||
var glyphWidths = Metrics[stdFontMap[name] || name];
|
||||
if (isNum(glyphWidths)) {
|
||||
defaultWidth = glyphWidths;
|
||||
} else {
|
||||
widths = glyphWidths;
|
||||
}
|
||||
|
||||
return {
|
||||
defaultWidth: defaultWidth,
|
||||
widths: widths || [],
|
||||
map: map
|
||||
widths: widths
|
||||
};
|
||||
},
|
||||
|
||||
|
|
@ -756,6 +716,7 @@ var PartialEvaluator = (function partialEvaluator() {
|
|||
assertWellFormed(isName(type), 'invalid font Subtype');
|
||||
composite = true;
|
||||
}
|
||||
var maxCharIndex = composite ? 0xFFFF : 0xFF;
|
||||
|
||||
var descriptor = xref.fetchIfRef(dict.get('FontDescriptor'));
|
||||
if (!descriptor) {
|
||||
|
|
@ -774,18 +735,16 @@ var PartialEvaluator = (function partialEvaluator() {
|
|||
|
||||
// Using base font name as a font name.
|
||||
baseFontName = baseFontName.name.replace(/[,_]/g, '-');
|
||||
var metricsAndMap = this.getBaseFontMetricsAndMap(baseFontName);
|
||||
var metrics = this.getBaseFontMetrics(baseFontName);
|
||||
|
||||
var properties = {
|
||||
type: type.name,
|
||||
encoding: metricsAndMap.map,
|
||||
differences: [],
|
||||
widths: metricsAndMap.widths,
|
||||
defaultWidth: metricsAndMap.defaultWidth,
|
||||
widths: metrics.widths,
|
||||
defaultWidth: metrics.defaultWidth,
|
||||
firstChar: 0,
|
||||
lastChar: 256
|
||||
lastChar: maxCharIndex
|
||||
};
|
||||
this.extractEncoding(dict, xref, properties);
|
||||
this.extractDataStructures(dict, dict, xref, properties);
|
||||
|
||||
return {
|
||||
name: baseFontName,
|
||||
|
|
@ -802,27 +761,7 @@ var PartialEvaluator = (function partialEvaluator() {
|
|||
// TODO Fill the width array depending on which of the base font this is
|
||||
// a variant.
|
||||
var firstChar = xref.fetchIfRef(dict.get('FirstChar')) || 0;
|
||||
var lastChar = xref.fetchIfRef(dict.get('LastChar')) || 256;
|
||||
var defaultWidth = 0;
|
||||
var glyphWidths = {};
|
||||
var encoding = {};
|
||||
var widths = xref.fetchIfRef(dict.get('Widths'));
|
||||
if (widths) {
|
||||
for (var i = 0, j = firstChar, ii = widths.length; i < ii; i++, j++)
|
||||
glyphWidths[j] = widths[i];
|
||||
defaultWidth = parseFloat(descriptor.get('MissingWidth')) || 0;
|
||||
} else {
|
||||
// Trying get the BaseFont metrics (see comment above).
|
||||
var baseFontName = dict.get('BaseFont');
|
||||
if (isName(baseFontName)) {
|
||||
var metricsAndMap = this.getBaseFontMetricsAndMap(baseFontName.name);
|
||||
|
||||
glyphWidths = metricsAndMap.widths;
|
||||
defaultWidth = metricsAndMap.defaultWidth;
|
||||
encoding = metricsAndMap.map;
|
||||
}
|
||||
}
|
||||
|
||||
var lastChar = xref.fetchIfRef(dict.get('LastChar')) || maxCharIndex;
|
||||
var fontName = xref.fetchIfRef(descriptor.get('FontName'));
|
||||
assertWellFormed(isName(fontName), 'invalid font name');
|
||||
|
||||
|
|
@ -854,34 +793,30 @@ var PartialEvaluator = (function partialEvaluator() {
|
|||
fixedPitch: false,
|
||||
fontMatrix: dict.get('FontMatrix') || IDENTITY_MATRIX,
|
||||
firstChar: firstChar || 0,
|
||||
lastChar: lastChar || 256,
|
||||
lastChar: lastChar || maxCharIndex,
|
||||
bbox: descriptor.get('FontBBox'),
|
||||
ascent: descriptor.get('Ascent'),
|
||||
descent: descriptor.get('Descent'),
|
||||
xHeight: descriptor.get('XHeight'),
|
||||
capHeight: descriptor.get('CapHeight'),
|
||||
defaultWidth: defaultWidth,
|
||||
flags: descriptor.get('Flags'),
|
||||
italicAngle: descriptor.get('ItalicAngle'),
|
||||
differences: [],
|
||||
widths: glyphWidths,
|
||||
encoding: encoding,
|
||||
coded: false
|
||||
};
|
||||
properties.glyphs = this.extractEncoding(dict, xref, properties);
|
||||
this.extractWidths(dict, xref, descriptor, properties);
|
||||
this.extractDataStructures(dict, baseDict, xref, properties);
|
||||
|
||||
if (type.name === 'Type3') {
|
||||
properties.coded = true;
|
||||
var charProcs = xref.fetchIfRef(dict.get('CharProcs'));
|
||||
var fontResources = xref.fetchIfRef(dict.get('Resources')) || resources;
|
||||
properties.resources = fontResources;
|
||||
properties.charProcIRQueues = {};
|
||||
for (var key in charProcs.map) {
|
||||
var glyphStream = xref.fetchIfRef(charProcs.map[key]);
|
||||
var queueObj = {};
|
||||
properties.glyphs[key].IRQueue = this.getIRQueue(glyphStream,
|
||||
fontResources,
|
||||
queueObj,
|
||||
dependency);
|
||||
properties.charProcIRQueues[key] =
|
||||
this.getIRQueue(glyphStream, fontResources, queueObj, dependency);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
781
src/fonts.js
781
src/fonts.js
File diff suppressed because it is too large
Load diff
143
src/function.js
143
src/function.js
|
|
@ -20,6 +20,8 @@ var PDFFunction = (function pdfFunction() {
|
|||
var array = [];
|
||||
var codeSize = 0;
|
||||
var codeBuf = 0;
|
||||
// 32 is a valid bps so shifting won't work
|
||||
var sampleMul = 1.0 / (Math.pow(2.0, bps) - 1);
|
||||
|
||||
var strBytes = str.getBytes((length * bps + 7) / 8);
|
||||
var strIdx = 0;
|
||||
|
|
@ -30,7 +32,7 @@ var PDFFunction = (function pdfFunction() {
|
|||
codeSize += 8;
|
||||
}
|
||||
codeSize -= bps;
|
||||
array.push(codeBuf >> codeSize);
|
||||
array.push((codeBuf >> codeSize) * sampleMul);
|
||||
codeBuf &= (1 << codeSize) - 1;
|
||||
}
|
||||
return array;
|
||||
|
|
@ -76,6 +78,17 @@ var PDFFunction = (function pdfFunction() {
|
|||
},
|
||||
|
||||
constructSampled: function pdfFunctionConstructSampled(str, dict) {
|
||||
function toMultiArray(arr) {
|
||||
var inputLength = arr.length;
|
||||
var outputLength = arr.length / 2;
|
||||
var out = new Array(outputLength);
|
||||
var index = 0;
|
||||
for (var i = 0; i < inputLength; i += 2) {
|
||||
out[index] = [arr[i], arr[i + 1]];
|
||||
++index;
|
||||
}
|
||||
return out;
|
||||
}
|
||||
var domain = dict.get('Domain');
|
||||
var range = dict.get('Range');
|
||||
|
||||
|
|
@ -85,9 +98,8 @@ var PDFFunction = (function pdfFunction() {
|
|||
var inputSize = domain.length / 2;
|
||||
var outputSize = range.length / 2;
|
||||
|
||||
if (inputSize != 1)
|
||||
error('No support for multi-variable inputs to functions: ' +
|
||||
inputSize);
|
||||
domain = toMultiArray(domain);
|
||||
range = toMultiArray(range);
|
||||
|
||||
var size = dict.get('Size');
|
||||
var bps = dict.get('BitsPerSample');
|
||||
|
|
@ -105,15 +117,36 @@ var PDFFunction = (function pdfFunction() {
|
|||
encode.push(size[i] - 1);
|
||||
}
|
||||
}
|
||||
encode = toMultiArray(encode);
|
||||
|
||||
var decode = dict.get('Decode');
|
||||
if (!decode)
|
||||
decode = range;
|
||||
else
|
||||
decode = toMultiArray(decode);
|
||||
|
||||
// Precalc the multipliers
|
||||
var inputMul = new Float64Array(inputSize);
|
||||
for (var i = 0; i < inputSize; ++i) {
|
||||
inputMul[i] = (encode[i][1] - encode[i][0]) /
|
||||
(domain[i][1] - domain[i][0]);
|
||||
}
|
||||
|
||||
var idxMul = new Int32Array(inputSize);
|
||||
idxMul[0] = outputSize;
|
||||
for (i = 1; i < inputSize; ++i) {
|
||||
idxMul[i] = idxMul[i - 1] * size[i - 1];
|
||||
}
|
||||
|
||||
var nSamples = outputSize;
|
||||
for (i = 0; i < inputSize; ++i)
|
||||
nSamples *= size[i];
|
||||
|
||||
var samples = this.getSampleArray(size, outputSize, bps, str);
|
||||
|
||||
return [
|
||||
CONSTRUCT_SAMPLED, inputSize, domain, encode, decode, samples, size,
|
||||
outputSize, bps, range
|
||||
outputSize, bps, range, inputMul, idxMul, nSamples
|
||||
];
|
||||
},
|
||||
|
||||
|
|
@ -127,64 +160,74 @@ var PDFFunction = (function pdfFunction() {
|
|||
var outputSize = IR[7];
|
||||
var bps = IR[8];
|
||||
var range = IR[9];
|
||||
var inputMul = IR[10];
|
||||
var idxMul = IR[11];
|
||||
var nSamples = IR[12];
|
||||
|
||||
return function constructSampledFromIRResult(args) {
|
||||
var clip = function constructSampledFromIRClip(v, min, max) {
|
||||
if (v > max)
|
||||
v = max;
|
||||
else if (v < min)
|
||||
v = min;
|
||||
return v;
|
||||
};
|
||||
|
||||
if (inputSize != args.length)
|
||||
error('Incorrect number of arguments: ' + inputSize + ' != ' +
|
||||
args.length);
|
||||
// Most of the below is a port of Poppler's implementation.
|
||||
// TODO: There's a few other ways to do multilinear interpolation such
|
||||
// as piecewise, which is much faster but an approximation.
|
||||
var out = new Float64Array(outputSize);
|
||||
var x;
|
||||
var e = new Array(inputSize);
|
||||
var efrac0 = new Float64Array(inputSize);
|
||||
var efrac1 = new Float64Array(inputSize);
|
||||
var sBuf = new Float64Array(1 << inputSize);
|
||||
var i, j, k, idx, t;
|
||||
|
||||
for (var i = 0; i < inputSize; i++) {
|
||||
var i2 = i * 2;
|
||||
|
||||
// clip to the domain
|
||||
var v = clip(args[i], domain[i2], domain[i2 + 1]);
|
||||
|
||||
// encode
|
||||
v = encode[i2] + ((v - domain[i2]) *
|
||||
(encode[i2 + 1] - encode[i2]) /
|
||||
(domain[i2 + 1] - domain[i2]));
|
||||
|
||||
// clip to the size
|
||||
args[i] = clip(v, 0, size[i] - 1);
|
||||
// map input values into sample array
|
||||
for (i = 0; i < inputSize; ++i) {
|
||||
x = (args[i] - domain[i][0]) * inputMul[i] + encode[i][0];
|
||||
if (x < 0) {
|
||||
x = 0;
|
||||
} else if (x > size[i] - 1) {
|
||||
x = size[i] - 1;
|
||||
}
|
||||
e[i] = [Math.floor(x), 0];
|
||||
if ((e[i][1] = e[i][0] + 1) >= size[i]) {
|
||||
// this happens if in[i] = domain[i][1]
|
||||
e[i][1] = e[i][0];
|
||||
}
|
||||
efrac1[i] = x - e[i][0];
|
||||
efrac0[i] = 1 - efrac1[i];
|
||||
}
|
||||
|
||||
// interpolate to table
|
||||
TODO('Multi-dimensional interpolation');
|
||||
var floor = Math.floor(args[0]);
|
||||
var ceil = Math.ceil(args[0]);
|
||||
var scale = args[0] - floor;
|
||||
// for each output, do m-linear interpolation
|
||||
for (i = 0; i < outputSize; ++i) {
|
||||
|
||||
floor *= outputSize;
|
||||
ceil *= outputSize;
|
||||
|
||||
var output = [], v = 0;
|
||||
for (var i = 0; i < outputSize; ++i) {
|
||||
if (ceil == floor) {
|
||||
v = samples[ceil + i];
|
||||
} else {
|
||||
var low = samples[floor + i];
|
||||
var high = samples[ceil + i];
|
||||
v = low * scale + high * (1 - scale);
|
||||
// pull 2^m values out of the sample array
|
||||
for (j = 0; j < (1 << inputSize); ++j) {
|
||||
idx = i;
|
||||
for (k = 0, t = j; k < inputSize; ++k, t >>= 1) {
|
||||
idx += idxMul[k] * (e[k][t & 1]);
|
||||
}
|
||||
if (idx >= 0 && idx < nSamples) {
|
||||
sBuf[j] = samples[idx];
|
||||
} else {
|
||||
sBuf[j] = 0; // TODO Investigate if this is what Adobe does
|
||||
}
|
||||
}
|
||||
|
||||
var i2 = i * 2;
|
||||
// decode
|
||||
v = decode[i2] + (v * (decode[i2 + 1] - decode[i2]) /
|
||||
((1 << bps) - 1));
|
||||
// do m sets of interpolations
|
||||
for (j = 0, t = (1 << inputSize); j < inputSize; ++j, t >>= 1) {
|
||||
for (k = 0; k < t; k += 2) {
|
||||
sBuf[k >> 1] = efrac0[j] * sBuf[k] + efrac1[j] * sBuf[k + 1];
|
||||
}
|
||||
}
|
||||
|
||||
// clip to the domain
|
||||
output.push(clip(v, range[i2], range[i2 + 1]));
|
||||
// map output value to range
|
||||
out[i] = (sBuf[0] * (decode[i][1] - decode[i][0]) + decode[i][0]);
|
||||
if (out[i] < range[i][0]) {
|
||||
out[i] = range[i][0];
|
||||
} else if (out[i] > range[i][1]) {
|
||||
out[i] = range[i][1];
|
||||
}
|
||||
}
|
||||
|
||||
return output;
|
||||
return out;
|
||||
}
|
||||
},
|
||||
|
||||
|
|
|
|||
|
|
@ -19,10 +19,10 @@ var Pattern = (function patternPattern() {
|
|||
|
||||
constructor.shadingFromIR = function pattern_shadingFromIR(ctx, raw) {
|
||||
return Shadings[raw[0]].fromIR(ctx, raw);
|
||||
}
|
||||
};
|
||||
|
||||
constructor.parseShading = function pattern_shading(shading, matrix,
|
||||
xref, res, ctx) {
|
||||
constructor.parseShading = function pattern_shading(shading, matrix, xref,
|
||||
res, ctx) {
|
||||
|
||||
var dict = isStream(shading) ? shading.dict : shading;
|
||||
var type = dict.get('ShadingType');
|
||||
|
|
@ -116,17 +116,18 @@ Shadings.RadialAxial = (function radialAxialShading() {
|
|||
p1 = Util.applyTransform(p1, userMatrix);
|
||||
}
|
||||
|
||||
var grad;
|
||||
if (type == 2)
|
||||
var grad = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]);
|
||||
grad = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]);
|
||||
else if (type == 3)
|
||||
var grad = ctx.createRadialGradient(p0[0], p0[1], r0, p1[0], p1[1], r1);
|
||||
grad = ctx.createRadialGradient(p0[0], p0[1], r0, p1[0], p1[1], r1);
|
||||
|
||||
for (var i = 0, ii = colorStops.length; i < ii; ++i) {
|
||||
var c = colorStops[i];
|
||||
grad.addColorStop(c[0], c[1]);
|
||||
}
|
||||
return grad;
|
||||
}
|
||||
};
|
||||
|
||||
constructor.prototype = {
|
||||
getIR: function radialAxialShadingGetIR() {
|
||||
|
|
@ -166,7 +167,7 @@ Shadings.Dummy = (function dummyShading() {
|
|||
|
||||
constructor.fromIR = function dummyShadingFromIR() {
|
||||
return 'hotpink';
|
||||
}
|
||||
};
|
||||
|
||||
constructor.prototype = {
|
||||
getIR: function dummyShadingGetIR() {
|
||||
|
|
@ -242,9 +243,9 @@ var TilingPattern = (function tilingPattern() {
|
|||
graphics.transform.apply(graphics, tmpTranslate);
|
||||
|
||||
if (bbox && isArray(bbox) && 4 == bbox.length) {
|
||||
var bboxWidth = bbox[2] - bbox[0];
|
||||
var bboxHeight = bbox[3] - bbox[1];
|
||||
graphics.rectangle(bbox[0], bbox[1], bboxWidth, bboxHeight);
|
||||
var bboxWidth = x1 - x0;
|
||||
var bboxHeight = y1 - y0;
|
||||
graphics.rectangle(x0, y0, bboxWidth, bboxHeight);
|
||||
graphics.clip();
|
||||
graphics.endPath();
|
||||
}
|
||||
|
|
@ -264,7 +265,7 @@ var TilingPattern = (function tilingPattern() {
|
|||
return [
|
||||
'TilingPattern', args, codeIR, matrix, bbox, xstep, ystep, paintType
|
||||
];
|
||||
}
|
||||
};
|
||||
|
||||
TilingPattern.prototype = {
|
||||
getPattern: function tiling_getPattern() {
|
||||
|
|
|
|||
|
|
@ -7,8 +7,9 @@ var PDFJS = {};
|
|||
// Use strict in our context only - users might not want it
|
||||
'use strict';
|
||||
|
||||
PDFJS.build = 'PDFJSSCRIPT_BUNDLE_VER';
|
||||
|
||||
// Files are inserted below - see Makefile
|
||||
/* PDFJSSCRIPT_INCLUDE_ALL */
|
||||
|
||||
}).call((typeof window === 'undefined') ? this : window);
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue