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// Copyright (c) 2012 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 <vector>
#include "base/basictypes.h"
#include "ui/gfx/size.h"
#include "webkit/glue/webkit_glue_export.h"
class SkBitmap;
namespace webkit_glue {
// Provides an interface to WebKit's image decoders.
//
// Note to future: This class should be deleted. We should have our own nice
// image decoders in base/gfx, and our port should use those. Currently, it's
// the other way around.
class WEBKIT_GLUE_EXPORT ImageDecoder {
public:
// Use the constructor with desired_size when you think you may have an .ico
// format and care about which size you get back. Otherwise, use the 0-arg
// constructor.
ImageDecoder();
ImageDecoder(const gfx::Size& desired_icon_size);
~ImageDecoder();
// Call this function to decode the image. If successful, the decoded image
// will be returned. Otherwise, an empty bitmap will be returned.
SkBitmap Decode(const unsigned char* data, size_t size) const;
// Returns all frames found in the image represented by data. If there are
// multiple frames at the same size, only the first one is returned.
static std::vector<SkBitmap> DecodeAll(
const unsigned char* data, size_t size);
private:
// Size will be empty to get the largest possible size.
gfx::Size desired_icon_size_;
DISALLOW_COPY_AND_ASSIGN(ImageDecoder);
};
} // namespace webkit_glue
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