Sakurai/pdf.js
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Removed bpc=1 code

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sbarman 2011-06-25 22:52:41 -07:00
parent 37a025620f
commit 9c3e2d4626
1 changed files with 2 additions and 59 deletions
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pdf.js
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@ -4,7 +4,7 @@
"use strict";
var ERRORS = 0, WARNINGS = 1, TODOS = 5;
var verbosity = ERRORS;
var verbosity = WARNINGS;
function log(msg) {
if (console && console.log)
@ -4273,65 +4273,8 @@ var CanvasGraphics = (function() {
}
}
if (bitsPerComponent == 1) {
var xref = this.xref;
var csStream = dict.get2("ColorSpace", "CS");
csStream = xref.fetchIfRef(csStream);
if (IsName(csStream) && inline)
csStream = colorSpaces.get(csStream);
var colorSpace = new ColorSpace(xref, csStream);
var numComps = colorSpace.numComps;
if (numComps != 1)
error("worng numComps");
ctx.strokeStyle = "#090";
ctx.strokeRect(0 + 1, -h + 1, w / 2, h -2 );
var imgArray = image.getBytes((numComps * w * h) >> 3);
var imgIdx = 0;
var tmpCanvas = document.createElement("canvas");
tmpCanvas.width = w;
tmpCanvas.height = h;
var tmpCtx = tmpCanvas.getContext("2d");
tmpCtx.fillStyle = "#000";
tmpCtx.fillRect(0, 0, w, h);
var imgData = tmpCtx.getImageData(0, 0, w, h);
var pixels = imgData.data;
var mask = 1;
var b = 0;
for (var i = 0, length = 4 * w * h; i < length; i += 4) {
if (i % (4*w) == 0) {
mask = 1;
b = 0;
}
mask >>= 1;
if (mask <= 0) {
b = imgArray[imgIdx++];
mask = 128;
}
var p = b & mask;
if (p > 0)
p = 1;
else
p = 0;
pixels[i] = 255 * p;
pixels[i+1] = 255 * p;
pixels[i+2] = 255 * p;
pixels[i+3] = 255;
}
tmpCtx.putImageData(imgData, 0, 0);
ctx.drawImage(tmpCanvas, 0, -h);
this.restore();
return;
}
if (bitsPerComponent !== 8)
error("Unsupported bpc");
TODO("Support bpc="+ bitsPerComponent);
var xref = this.xref;
var colorSpaces = this.colorSpaces;