1 /* 2 * Copyright (C) 2009 Apple Inc. All Rights Reserved. 3 * Copyright (C) 2009 Brent Fulgham 4 * Copyright (C) 2007-2009 Torch Mobile, Inc. All Rights Reserved. 5 * Copyright (C) 2010 Patrick Gansterer <paroga (at) paroga.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 24 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef BitmapInfo_h 30 #define BitmapInfo_h 31 32 #include "IntSize.h" 33 #include <windows.h> 34 35 namespace WebCore { 36 37 struct BitmapInfo : public BITMAPINFO { 38 enum BitCount { 39 BitCount1 = 1, 40 BitCount4 = 4, 41 BitCount8 = 8, 42 BitCount16 = 16, 43 BitCount24 = 24, 44 BitCount32 = 32 45 }; 46 47 BitmapInfo(); 48 static BitmapInfo create(const IntSize&, BitCount bitCount = BitCount32); 49 static BitmapInfo createBottomUp(const IntSize&, BitCount bitCount = BitCount32); 50 51 bool is16bit() const { return bmiHeader.biBitCount == 16; } 52 bool is32bit() const { return bmiHeader.biBitCount == 32; } 53 unsigned width() const { return abs(bmiHeader.biWidth); } 54 unsigned height() const { return abs(bmiHeader.biHeight); } 55 IntSize size() const { return IntSize(width(), height()); } 56 unsigned bytesPerLine() const { return (width() * bmiHeader.biBitCount + 7) / 8; } 57 unsigned paddedBytesPerLine() const { return (bytesPerLine() + 3) & ~0x3; } 58 unsigned paddedWidth() const { return paddedBytesPerLine() * 8 / bmiHeader.biBitCount; } 59 unsigned numPixels() const { return paddedWidth() * height(); } 60 }; 61 62 } // namespace WebCore 63 64 #endif // BitmapInfo_h 65
