Merge pull request #9352 from Snuffleupagus/issue-9285

Attempt to actually resolve ColourSpace names in accordance with the specification (issue 9285)

src/core/colorspace.js

@@ -258,17 +258,7 @@ var ColorSpace = (function ColorSpaceClosure() {
     }
   };
 
-  ColorSpace.parseToIR = function(cs, xref, res, pdfFunctionFactory) {
-    if (isName(cs)) {
-      var colorSpaces = res.get('ColorSpace');
-      if (isDict(colorSpaces)) {
-        var refcs = colorSpaces.get(cs.name);
-        if (refcs) {
-          cs = refcs;
-        }
-      }
-    }
-
+  ColorSpace.parseToIR = function(cs, xref, res = null, pdfFunctionFactory) {
     cs = xref.fetchIfRef(cs);
     if (isName(cs)) {
       switch (cs.name) {
@@ -284,6 +274,20 @@ var ColorSpace = (function ColorSpaceClosure() {
         case 'Pattern':
           return ['PatternCS', null];
         default:
+          if (isDict(res)) {
+            let colorSpaces = res.get('ColorSpace');
+            if (isDict(colorSpaces)) {
+              let resCS = colorSpaces.get(cs.name);
+              if (resCS) {
+                if (isName(resCS)) {
+                  return ColorSpace.parseToIR(resCS, xref, res,
+                                              pdfFunctionFactory);
+                }
+                cs = resCS;
+                break;
+              }
+            }
+          }
           throw new FormatError(`unrecognized colorspace ${cs.name}`);
       }
     }

src/core/evaluator.js

@@ -412,6 +412,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
           xref: this.xref,
           res: resources,
           image,
+          isInline: inline,
           pdfFunctionFactory: this.pdfFunctionFactory,
         });
         // We force the use of RGBA_32BPP images here, because we can't handle
@@ -464,6 +465,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
         xref: this.xref,
         res: resources,
         image,
+        isInline: inline,
         nativeDecoder: nativeImageDecoder,
         pdfFunctionFactory: this.pdfFunctionFactory,
       }).then((imageObj) => {

src/core/image.js

@@ -75,8 +75,8 @@ var PDFImage = (function PDFImageClosure() {
     return dest;
   }
 
-  function PDFImage({ xref, res, image, smask = null, mask = null,
-                      isMask = false, pdfFunctionFactory, }) {
+  function PDFImage({ xref, res, image, isInline = false, smask = null,
+                      mask = null, isMask = false, pdfFunctionFactory, }) {
     this.image = image;
     var dict = image.dict;
     if (dict.has('Filter')) {
@@ -139,7 +139,8 @@ var PDFImage = (function PDFImageClosure() {
                             'color components not supported.');
         }
       }
-      this.colorSpace = ColorSpace.parse(colorSpace, xref, res,
+      let resources = isInline ? res : null;
+      this.colorSpace = ColorSpace.parse(colorSpace, xref, resources,
                                          pdfFunctionFactory);
       this.numComps = this.colorSpace.numComps;
     }
@@ -167,6 +168,7 @@ var PDFImage = (function PDFImageClosure() {
         xref,
         res,
         image: smask,
+        isInline,
         pdfFunctionFactory,
       });
     } else if (mask) {
@@ -179,6 +181,7 @@ var PDFImage = (function PDFImageClosure() {
             xref,
             res,
             image: mask,
+            isInline,
             isMask: true,
             pdfFunctionFactory,
           });
@@ -193,7 +196,7 @@ var PDFImage = (function PDFImageClosure() {
    * Handles processing of image data and returns the Promise that is resolved
    * with a PDFImage when the image is ready to be used.
    */
-  PDFImage.buildImage = function({ handler, xref, res, image,
+  PDFImage.buildImage = function({ handler, xref, res, image, isInline = false,
                                    nativeDecoder = null,
                                    pdfFunctionFactory, }) {
     var imagePromise = handleImageData(image, nativeDecoder);
@@ -227,6 +230,7 @@ var PDFImage = (function PDFImageClosure() {
           xref,
           res,
           image: imageData,
+          isInline,
           smask: smaskData,
           mask: maskData,
           pdfFunctionFactory,

test/pdfs/issue9285.pdf.link

@@ -0,0 +1 @@
+https://github.com/mozilla/pdf.js/files/1563256/4149180-355989.pdf

test/test_manifest.json

@@ -741,6 +741,14 @@
        "link": false,
        "type": "eq"
     },
+    {  "id": "issue9285",
+       "file": "pdfs/issue9285.pdf",
+       "md5": "aa53ad98a72fd76c414101927951448b",
+       "rounds": 1,
+       "link": true,
+       "lastPage": 1,
+       "type": "eq"
+    },
     {  "id": "issue8707",
        "file": "pdfs/issue8707.pdf",
        "md5": "d3dc670adde9ec9fb82c974027033029",