Sakurai/pdf.js
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add support for xobj embedded images that are not rendered by the platform + has no mask

Browse Source
This commit is contained in:
Julian Viereck 2011-09-05 19:38:22 -07:00
parent eca8f6b80b
commit 67f745443e
1 changed files with 47 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
pdf.js
View File

@ -4272,6 +4272,21 @@ var PartialEvaluator = (function() {
var inline = false;
var imageObj = new PDFImage(xref, resources, image, inline);
if (imageObj.imageMask) {
throw "Can't handle this in the web worker :/";
}
var imgData = {
width: w,
height: h,
data: new Uint8Array(w * h * 4)
};
var pixels = imgData.data;
imageObj.fillRgbaBuffer(pixels, imageObj.decode);
fn = "paintReadyImageXObject";
args = [ imgData ];
console.log("xobj subtype image", w, h, imageObj.imageMask);
}
@ -4306,13 +4321,13 @@ var PartialEvaluator = (function() {
}
}
var skips = ["paintXObject"];
if (skips.indexOf(fn) != -1) {
// console.log("skipping", fn);
args = [];
continue;
}
// var skips = ["paintXObject"];
//
// if (skips.indexOf(fn) != -1) {
// // console.log("skipping", fn);
// args = [];
// continue;
// }
fnArray.push(fn);
argsArray.push(args);
@ -5403,6 +5418,31 @@ var CanvasGraphics = (function() {
ctx.drawImage(tmpCanvas, 0, -h);
this.restore();
},
paintReadyImageXObject: function(imgData) {
this.save();
var ctx = this.ctx;
var w = imgData.width;
var h = imgData.height;
// scale the image to the unit square
ctx.scale(1 / w, -1 / h);
var tmpCanvas = new this.ScratchCanvas(w, h);
var tmpCtx = tmpCanvas.getContext('2d');
var tmpImgData = tmpCtx.getImageData(0, 0, w, h);
// Copy over the imageData.
var tmpImgDataPixels = tmpImgData.data;
var len = tmpImgDataPixels.length;
while (len--)
tmpImgDataPixels[len] = imgData.data[len];
tmpCtx.putImageData(tmpImgData, 0, 0);
ctx.drawImage(tmpCanvas, 0, -h);
this.restore();
},
// Marked content