content/child/image_decoder.cc

   1 // Copyright (c) 2013 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 "content/child/image_decoder.h"
   6
   7 #include "content/public/child/image_decoder_utils.h"
   8 #include "third_party/WebKit/public/platform/WebData.h"
   9 #include "third_party/WebKit/public/platform/WebImage.h"
  10 #include "third_party/WebKit/public/platform/WebSize.h"
  11 #include "third_party/skia/include/core/SkBitmap.h"
  12
  13 using blink::WebData;
  14 using blink::WebImage;
  15
  16 namespace content {
  17
  18 SkBitmap DecodeImage(const unsigned char* data,
  19                      const gfx::Size& desired_image_size,
  20                      size_t size) {
  21   ImageDecoder decoder(desired_image_size);
  22   return decoder.Decode(data, size);
  23 }
  24
  25 ImageDecoder::ImageDecoder() : desired_icon_size_(0, 0) {
  26 }
  27
  28 ImageDecoder::ImageDecoder(const gfx::Size& desired_icon_size)
  29     : desired_icon_size_(desired_icon_size) {
  30 }
  31
  32 ImageDecoder::~ImageDecoder() {
  33 }
  34
  35 SkBitmap ImageDecoder::Decode(const unsigned char* data, size_t size) const {
  36   const WebImage& image = WebImage::fromData(
  37       WebData(reinterpret_cast<const char*>(data), size), desired_icon_size_);
  38   return image.getSkBitmap();
  39 }
  40
  41 // static
  42 std::vector<SkBitmap> ImageDecoder::DecodeAll(
  43       const unsigned char* data, size_t size) {
  44   const blink::WebVector<WebImage>& images = WebImage::framesFromData(
  45       WebData(reinterpret_cast<const char*>(data), size));
  46   std::vector<SkBitmap> result;
  47   for (size_t i = 0; i < images.size(); ++i)
  48     result.push_back(images[i].getSkBitmap());
  49   return result;
  50 }
  51
  52 }  // namespace content