Add output format properties to SkImageFilter::Context

src/effects/SkComposeImageFilter.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkComposeImageFilter.h"
 
 #include "SkReadBuffer.h"
@@ skipping 20 matching lines @@
 }
 
 sk_sp<SkSpecialImage> SkComposeImageFilter::onFilterImage(SkSpecialImage* source,
                                                           const Context& ctx,
                                                           SkIPoint* offset) const {
     // The bounds passed to the inner filter must be filtered by the outer
     // filter, so that the inner filter produces the pixels that the outer
     // filter requires as input. This matters if the outer filter moves pixels.
     SkIRect innerClipBounds;
     innerClipBounds = this->getInput(0)->filterBounds(ctx.clipBounds(), ctx.ctm());
-    Context innerContext(ctx.ctm(), innerClipBounds, ctx.cache());
+    Context innerContext(ctx.ctm(), innerClipBounds, ctx.cache(), ctx.outputProperties());
     SkIPoint innerOffset = SkIPoint::Make(0, 0);
     sk_sp<SkSpecialImage> inner(this->filterInput(1, source, innerContext, &innerOffset));
     if (!inner) {
         return nullptr;
     }
 
     SkMatrix outerMatrix(ctx.ctm());
     outerMatrix.postTranslate(SkIntToScalar(-innerOffset.x()), SkIntToScalar(-innerOffset.y()));
     SkIRect clipBounds = ctx.clipBounds();
     clipBounds.offset(-innerOffset.x(), -innerOffset.y());
-    Context outerContext(outerMatrix, clipBounds, ctx.cache());
+    Context outerContext(outerMatrix, clipBounds, ctx.cache(), ctx.outputProperties());
 
     SkIPoint outerOffset = SkIPoint::Make(0, 0);
     sk_sp<SkSpecialImage> outer(this->filterInput(0, inner.get(), outerContext, &outerOffset));
     if (!outer) {
         return nullptr;
     }
 
     *offset = innerOffset + outerOffset;
     return outer;
 }
@@ skipping 20 matching lines @@
 
     str->appendf("outer: ");
     outer->toString(str);
 
     str->appendf("inner: ");
     inner->toString(str);
 
     str->appendf(")");
 }
 #endif