Add output format properties to SkImageFilter::Context

src/pdf/SkPDFDevice.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPDFDevice.h"
 
 #include "SkAdvancedTypefaceMetrics.h"
@@ skipping 2270 matching lines @@
 
     SkBitmap resultBM;
 
     SkImageFilter* filter = paint.getImageFilter();
     if (filter) {
         SkIPoint offset = SkIPoint::Make(0, 0);
         SkMatrix matrix = *draw.fMatrix;
         matrix.postTranslate(SkIntToScalar(-x), SkIntToScalar(-y));
         const SkIRect clipBounds = draw.fRC->getBounds().makeOffset(-x, -y);
         SkAutoTUnref<SkImageFilterCache> cache(this->getImageFilterCache());
-        SkImageFilter::Context ctx(matrix, clipBounds, cache.get());
+        // TODO: Should PDF be operating in a specified color space? For now, run the filter
+        // in the same color space as the source (this is different from all other backends).
+        SkImageFilter::OutputProperties outputProperties(srcImg->getColorSpace());
+        SkImageFilter::Context ctx(matrix, clipBounds, cache.get(), outputProperties);
 
         sk_sp<SkSpecialImage> resultImg(filter->filterImage(srcImg, ctx, &offset));
         if (resultImg) {
             SkPaint tmpUnfiltered(paint);
             tmpUnfiltered.setImageFilter(nullptr);
             if (resultImg->getROPixels(&resultBM)) {
                 this->drawSprite(draw, resultBM, x + offset.x(), y + offset.y(), tmpUnfiltered);
             }
         }
     } else {
@@ skipping 14 matching lines @@
 
 sk_sp<SkSpecialImage> SkPDFDevice::snapSpecial() {
     return nullptr;
 }
 
 SkImageFilterCache* SkPDFDevice::getImageFilterCache() {
     // We always return a transient cache, so it is freed after each
     // filter traversal.
     return SkImageFilterCache::Create(SkImageFilterCache::kDefaultTransientSize);
 }