BitmapInfo.cpp   [plain text]

/*
 * Copyright (C) 2009 Apple Inc. All Rights Reserved.
 * Copyright (C) 2009 Brent Fulgham
 * Copyright (C) 2007-2009 Torch Mobile, Inc. All Rights Reserved.
 * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
 *
 * 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 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 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.
 */

#include "config.h"
#include "BitmapInfo.h"

#include <wtf/Assertions.h>

namespace WebCore {

BitmapInfo bitmapInfoForSize(int width, int height, BitmapInfo::BitCount bitCount)
{
    BitmapInfo bitmapInfo;
    bitmapInfo.bmiHeader.biWidth         = width;
    bitmapInfo.bmiHeader.biHeight        = height;
    bitmapInfo.bmiHeader.biPlanes        = 1;
    bitmapInfo.bmiHeader.biBitCount      = bitCount;
    bitmapInfo.bmiHeader.biCompression   = BI_RGB;

    return bitmapInfo;
}

BitmapInfo::BitmapInfo()
{
    memset(&bmiHeader, 0, sizeof(bmiHeader));
    bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
}

BitmapInfo BitmapInfo::create(const IntSize& size, BitCount bitCount)
{
    return bitmapInfoForSize(size.width(), size.height(), bitCount);
}

BitmapInfo BitmapInfo::createBottomUp(const IntSize& size, BitCount bitCount)
{
    return bitmapInfoForSize(size.width(), -size.height(), bitCount);
}

} // namespace WebCore