[poc] redecode

third_party/WebKit/Source/platform/graphics/ImagePattern.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "platform/graphics/ImagePattern.h"
 
+#include "platform/graphics/BitmapImage.h"
+#include "platform/graphics/GraphicsScreen.h"
 #include "platform/graphics/Image.h"
 #include "platform/graphics/skia/SkiaUtils.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkImage.h"
 #include "third_party/skia/include/core/SkShader.h"
 #include "third_party/skia/include/core/SkSurface.h"
 
 namespace blink {
 
 PassRefPtr<ImagePattern> ImagePattern::create(PassRefPtr<Image> image, RepeatMode repeatMode)
 {
     return adoptRef(new ImagePattern(image, repeatMode));
 }
 
 ImagePattern::ImagePattern(PassRefPtr<Image> image, RepeatMode repeatMode)
     : Pattern(repeatMode)
-    , m_tileImage(image->imageForCurrentFrame())
 {
+    // Patterns of tagged images (those that have a color profile) are drawn to sRGB
+    // on supported platforms. Note the only allowed caller is the <canvas> element.
+
+    if (image && imageColorProfilesEnabled() && image->isBitmapImage()) {
+        if (toBitmapImage(image.get())->hasColorProfile())
+            toBitmapImage(image.get())->notifyDeviceProfile(screenColorProfile(currentScreenId()).get());
+        RELEASE_ASSERT(!currentScreenId()); // Check the caller is an HTML <canvas>.
+    }
+
+    m_tileImage = image->imageForCurrentFrame();
+
     if (m_tileImage) {
         // TODO(fmalita): mechanism to extract the actual SkImageInfo from an SkImage?
         const SkImageInfo info =
             SkImageInfo::MakeN32Premul(m_tileImage->width(), m_tileImage->height());
         adjustExternalMemoryAllocated(info.getSafeSize(info.minRowBytes()));
     }
 }
 
 PassRefPtr<SkShader> ImagePattern::createShader()
 {
@@ skipping 36 matching lines @@
 
     return adoptRef(expandedImage->newShader(tileModeX, tileModeY, &localMatrix));
 }
 
 bool ImagePattern::isTextureBacked() const
 {
     return m_tileImage && m_tileImage->isTextureBacked();
 }
 
 } // namespace