ui/gfx/image/image_util.h

   1 // Copyright (c) 2012 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 #ifndef UI_GFX_IMAGE_IMAGE_UTIL_H_
   6 #define UI_GFX_IMAGE_IMAGE_UTIL_H_
   7
   8 #include <vector>
   9
  10 #include "base/basictypes.h"
  11 #include "ui/base/ui_export.h"
  12
  13 namespace gfx {
  14 class Image;
  15 }
  16
  17 namespace gfx {
  18
  19 // Creates an image from the given JPEG-encoded input. If there was an error
  20 // creating the image, returns an IsEmpty() Image.
  21 UI_EXPORT Image ImageFrom1xJPEGEncodedData(const unsigned char* input,
  22                                            size_t input_size);
  23
  24 // Fills the |dst| vector with JPEG-encoded bytes of the 1x representation of
  25 // the given image.
  26 // Returns true if the image has a 1x representation and the 1x representation
  27 // was encoded successfully.
  28 // |quality| determines the compression level, 0 == lowest, 100 == highest.
  29 // Returns true if the Image was encoded successfully.
  30 UI_EXPORT bool JPEG1xEncodedDataFromImage(const Image& image,
  31                                           int quality,
  32                                           std::vector<unsigned char>* dst);
  33
  34 }  // namespace gfx
  35
  36 #endif  // UI_GFX_IMAGE_IMAGE_UTIL_H_