[iphone-api.git] / WebCore / CanvasPixelArray.h

/*
 * Copyright (C) 2008, 2009 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.
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 CanvasPixelArray_h
#define CanvasPixelArray_h

#include <wtf/ByteArray.h>
#include <wtf/MathExtras.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>

namespace WebCore {
    
    class CanvasPixelArray : public RefCounted<CanvasPixelArray> {
    public:
        static PassRefPtr<CanvasPixelArray> create(unsigned length);
        
        WTF::ByteArray* data() { return m_data.get(); }
        unsigned length() const { return m_data->length(); }
        
        void set(unsigned index, double value)
        {
            m_data->set(index, value);
        }
        
        bool get(unsigned index, unsigned char& result) const
        {
            return m_data->get(index, result);
        }

    private:
        CanvasPixelArray(unsigned length);
        RefPtr<WTF::ByteArray> m_data;
    };
    
} // namespace WebCore

#endif // CanvasPixelArray_h
Commit	Line	Data
a90939db JF	1	/*
	2	* Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	*
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
	14	* its contributors may be used to endorse or promote products derived
	15	* from this software without specific prior written permission.
	16	*
	17	* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
	18	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	19	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	20	* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
	21	* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	22	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	23	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	24	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	27	*/
	28
	29	#ifndef CanvasPixelArray_h
	30	#define CanvasPixelArray_h
	31
	32	#include <wtf/ByteArray.h>
	33	#include <wtf/MathExtras.h>
	34	#include <wtf/PassRefPtr.h>
	35	#include <wtf/RefCounted.h>
	36	#include <wtf/Vector.h>
	37
	38	namespace WebCore {
	39
	40	class CanvasPixelArray : public RefCounted<CanvasPixelArray> {
	41	public:
	42	static PassRefPtr<CanvasPixelArray> create(unsigned length);
	43
	44	WTF::ByteArray* data() { return m_data.get(); }
	45	unsigned length() const { return m_data->length(); }
	46
	47	void set(unsigned index, double value)
	48	{
	49	m_data->set(index, value);
	50	}
	51
	52	bool get(unsigned index, unsigned char& result) const
	53	{
	54	return m_data->get(index, result);
	55	}
	56
	57	private:
	58	CanvasPixelArray(unsigned length);
	59	RefPtr<WTF::ByteArray> m_data;
	60	};
	61
	62	} // namespace WebCore
	63
	64	#endif // CanvasPixelArray_h