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      1 /*
      2  * Copyright (C) 2009 Apple Inc. All Rights Reserved.
      3  * Copyright (C) 2009 Brent Fulgham
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      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  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include "config.h"
     28 #include "BitmapInfo.h"
     29 
     30 namespace WebCore {
     31 
     32 BitmapInfo bitmapInfoForSize(int width, int height)
     33 {
     34     BitmapInfo bitmapInfo;
     35     bitmapInfo.bmiHeader.biSize          = sizeof(BITMAPINFOHEADER);
     36     bitmapInfo.bmiHeader.biWidth         = width;
     37     bitmapInfo.bmiHeader.biHeight        = height;
     38     bitmapInfo.bmiHeader.biPlanes        = 1;
     39     bitmapInfo.bmiHeader.biBitCount      = 32;
     40     bitmapInfo.bmiHeader.biCompression   = BI_RGB;
     41     bitmapInfo.bmiHeader.biSizeImage     = 0;
     42     bitmapInfo.bmiHeader.biXPelsPerMeter = 0;
     43     bitmapInfo.bmiHeader.biYPelsPerMeter = 0;
     44     bitmapInfo.bmiHeader.biClrUsed       = 0;
     45     bitmapInfo.bmiHeader.biClrImportant  = 0;
     46 
     47     return bitmapInfo;
     48 }
     49 
     50 BitmapInfo::BitmapInfo()
     51 {
     52     memset(&bmiHeader, 0, sizeof(bmiHeader));
     53     bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
     54 }
     55 
     56 BitmapInfo BitmapInfo::create(const IntSize& size)
     57 {
     58    return bitmapInfoForSize(size.width(), size.height());
     59 }
     60 
     61 BitmapInfo BitmapInfo::createBottomUp(const IntSize& size)
     62 {
     63    return bitmapInfoForSize(size.width(), -size.height());
     64 }
     65 
     66 } // namespace WebCore
     67