Gamma-correctness pushed into Skia, top-down.

src/effects/SkAlphaThresholdFilter.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 "SkAlphaThresholdFilter.h"
 
 #include "SkBitmap.h"
@@ skipping 294 matching lines @@
         SkAutoTUnref<GrTexture> maskTexture(
             context->textureProvider()->createApproxTexture(maskDesc));
         if (!maskTexture) {
             return false;
         }
 
         SkAutoTUnref<GrDrawContext> drawContext(
                                             context->drawContext(maskTexture->asRenderTarget()));
         if (drawContext) {
             GrPaint grPaint;
+            // SRGBTODO: AllowSRGBInputs?

[bsalomon, 2016/04/05 13:24:00]

Nah, this is really drawing a mask.

[Brian Osman, 2016/04/05 15:36:41]

Acknowledged.

             grPaint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
             SkRegion::Iterator iter(fRegion);
             drawContext->clear(nullptr, 0x0, true);
 
             GrClip clip(SkRect::Make(SkIRect::MakeWH(bounds.width(), bounds.height())));
             while (!iter.done()) {
                 SkRect rect = SkRect::Make(iter.rect());
                 drawContext->drawRect(clip, grPaint, inMatrix, rect);
                 iter.next();
             }
@@ skipping 80 matching lines @@
     return true;
 }
 
 #ifndef SK_IGNORE_TO_STRING
 void SkAlphaThresholdFilterImpl::toString(SkString* str) const {
     str->appendf("SkAlphaThresholdImageFilter: (");
     str->appendf("inner: %f outer: %f", fInnerThreshold, fOuterThreshold);
     str->append(")");
 }
 #endif