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Diffstat (limited to 'webkit/api/public/WebImage.h')
-rw-r--r-- | webkit/api/public/WebImage.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/webkit/api/public/WebImage.h b/webkit/api/public/WebImage.h new file mode 100644 index 0000000..5dd4d52 --- /dev/null +++ b/webkit/api/public/WebImage.h @@ -0,0 +1,126 @@ +/* + * 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 |