components/enhanced_bookmarks/image_store_util.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/enhanced_bookmarks/image_store_util.h"
   6
   7 #include "ui/gfx/image/image_skia.h"
   8 #include "ui/gfx/image/image_util.h"
   9
  10 namespace {
  11 const int kJpegEncodingQuality = 70;
  12 }  // namespace
  13
  14 namespace enhanced_bookmarks {
  15
  16 scoped_refptr<base::RefCountedMemory> BytesForImage(const gfx::Image& image) {
  17   DCHECK(image.AsImageSkia().image_reps().size() == 1);
  18   DCHECK(image.AsImageSkia().image_reps().begin()->scale() == 1.0f);
  19
  20   std::vector<unsigned char> data;
  21   bool succeeded =
  22       gfx::JPEG1xEncodedDataFromImage(image, kJpegEncodingQuality, &data);
  23
  24   if (!succeeded)
  25     return scoped_refptr<base::RefCountedMemory>();
  26
  27   return scoped_refptr<base::RefCountedMemory>(new base::RefCountedBytes(data));
  28 }
  29
  30 gfx::Image ImageForBytes(const scoped_refptr<base::RefCountedMemory>& bytes) {
  31   return gfx::ImageFrom1xJPEGEncodedData(bytes->front(), bytes->size());
  32 }
  33 }