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/*
* Copyright (C) 2009 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef WebImage_h
#define WebImage_h
#include "WebCommon.h"
#include "WebSize.h"
#if WEBKIT_USING_SKIA
class SkBitmap;
#endif
namespace WebKit {
class WebImagePixels;
class WebImagePrivate;
// A container for an ARGB bitmap.
class WebImage {
public:
~WebImage() { reset(); }
WebImage() : m_private(0) { }
WebImage(const WebImage& image) : m_private(0) { assign(image); }
WebImage& operator=(const WebImage& image)
{
assign(image);
return *this;
}
WEBKIT_API void reset();
WEBKIT_API WebSize size() const;
WebImagePixels pixels() const;
bool isNull() const { return m_private == 0; }
#if WEBKIT_USING_SKIA
WebImage(const SkBitmap& bitmap) : m_private(0)
{
assign(bitmap);
}
WebImage& operator=(const SkBitmap& bitmap)
{
assign(bitmap);
return *this;
}
WEBKIT_API operator SkBitmap() const;
#endif
private:
friend class WebImagePixels;
WEBKIT_API void assign(const WebImage&);
WEBKIT_API const void* lockPixels();
WEBKIT_API void unlockPixels();
#if WEBKIT_USING_SKIA
WEBKIT_API void assign(const SkBitmap&);
#endif
WebImagePrivate* m_private;
};
class WebImagePixels {
public:
WebImagePixels(WebImage* image) : m_image(image)
{
m_data = m_image->lockPixels();
}
WebImagePixels(const WebImagePixels& other) : m_image(other.m_image)
{
m_data = m_image->lockPixels();
}
~WebImagePixels() { m_image->unlockPixels(); }
const void* get() const { return m_data; }
operator const void*() const { return m_data; }
private:
WebImagePixels& operator=(const WebImagePixels&);
WebImage* m_image;
const void* m_data;
};
inline WebImagePixels WebImage::pixels() const
{
return WebImagePixels(const_cast<WebImage*>(this));
}
} // namespace WebKit
#endif
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