SIMD implementation of Convolver for Lanczos filter etc.

skia/ext/image_operations.h

 // Copyright (c) 2011 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.
 
 #ifndef SKIA_EXT_IMAGE_OPERATIONS_H_
 #define SKIA_EXT_IMAGE_OPERATIONS_H_
 #pragma once
 
 class SkBitmap;
 struct SkIRect;
@@ skipping 103 matching lines @@
   // Supports all methods except RESIZE_SUBPIXEL.
   static SkBitmap ResizeBasic(const SkBitmap& source,
                               ResizeMethod method,
                               int dest_width, int dest_height,
                               const SkIRect& dest_subset);
 
   // Subpixel renderer.
   static SkBitmap ResizeSubpixel(const SkBitmap& source,
                                  int dest_width, int dest_height,
                                  const SkIRect& dest_subset);
+
+  static bool hasSSE2();
 };
 
 }  // namespace skia
 
 #endif  // SKIA_EXT_IMAGE_OPERATIONS_H_