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/*
* Copyright (C) 2007, 2008, 2009, 2010 Apple, 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 QTPixelBuffer_h
#define QTPixelBuffer_h
#ifdef QTMOVIEWIN_EXPORTS
#define QTMOVIEWIN_API __declspec(dllexport)
#else
#define QTMOVIEWIN_API __declspec(dllimport)
#endif
#include <stdint.h>
typedef struct __CVBuffer *CVBufferRef;
typedef CVBufferRef CVPixelBufferRef;
typedef struct CGImage* CGImageRef;
typedef int32_t CVReturn;
typedef const struct __CFDictionary * CFDictionaryRef;
// QTPixelBuffer wraps QuickTime's implementation of CVPixelBuffer, so its functions are
// safe to call within WebKit.
class QTMOVIEWIN_API QTPixelBuffer {
public:
enum Type { ConfigureForCGImage, ConfigureForCAImageQueue };
static CFDictionaryRef createPixelBufferAttributesDictionary(Type);
QTPixelBuffer();
QTPixelBuffer(const QTPixelBuffer&);
QTPixelBuffer(CVPixelBufferRef);
QTPixelBuffer& operator=(const QTPixelBuffer&);
~QTPixelBuffer();
void set(CVPixelBufferRef);
CVPixelBufferRef pixelBufferRef();
void adopt(CVPixelBufferRef);
void clear();
CVReturn lockBaseAddress();
CVReturn unlockBaseAddress();
void* baseAddress();
size_t width() const;
size_t height() const;
unsigned long pixelFormatType() const;
bool pixelFormatIs32ARGB() const;
bool pixelFormatIs32BGRA() const;
size_t bytesPerRow() const;
size_t dataSize() const;
bool isPlanar() const;
size_t planeCount() const;
size_t widthOfPlane(size_t) const;
size_t heightOfPlane(size_t) const;
void* baseAddressOfPlane(size_t) const;
size_t bytesPerRowOfPlane(size_t) const;
void getExtendedPixels(size_t* left, size_t* right, size_t* top, size_t* bottom) const;
CFDictionaryRef attachments() const;
// Generic CFRetain/CFRelease callbacks
static void releaseCallback(void* refcon);
static void retainCallback(void* refcon);
// CAImageQueue callbacks
static void imageQueueReleaseCallback(unsigned int type, uint64_t id, void* refcon);
// CGDataProvider callbacks
static void dataProviderReleaseBytePointerCallback(void* refcon, const void* pointer);
static const void* dataProviderGetBytePointerCallback(void* refcon);
static size_t dataProviderGetBytesAtPositionCallback(void* refcon, void* buffer, size_t position, size_t count);
static void dataProviderReleaseInfoCallback(void* refcon);
private:
CVPixelBufferRef m_pixelBuffer;
};
#endif
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