1 /* 2 * Copyright (C) 2006 George Staikos <staikos (at) kde.org> 3 * Copyright (C) 2006 Dirk Mueller <mueller (at) kde.org> 4 * Copyright (C) 2006 Zack Rusin <zack (at) kde.org> 5 * Copyright (C) 2007 Ryan Leavengood <leavengood (at) gmail.com> 6 * 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 26 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 #include "GlyphPageTreeNode.h" 33 34 #include "SimpleFontData.h" 35 #include <wtf/Assertions.h> 36 #include <wtf/unicode/Unicode.h> 37 38 39 namespace WebCore { 40 41 bool GlyphPage::fill(unsigned offset, unsigned length, UChar* characterBuffer, unsigned bufferLength, const SimpleFontData* fontData) 42 { 43 bool isUtf16 = bufferLength != GlyphPage::size; 44 bool haveGlyphs = false; 45 46 for (unsigned i = 0; i < GlyphPage::size; i++) { 47 UChar32 character; 48 49 if (isUtf16) { 50 UChar lead = characterBuffer[i * 2]; 51 UChar trail = characterBuffer[i * 2 + 1]; 52 character = U16_GET_SUPPLEMENTARY(lead, trail); 53 } else 54 character = characterBuffer[i]; 55 56 if (!character) 57 setGlyphDataForIndex(offset + i, 0, 0); 58 else { 59 haveGlyphs = true; 60 setGlyphDataForIndex(offset + i, character, fontData); 61 } 62 } 63 64 return haveGlyphs; 65 } 66 67 } // namespace WebCore 68 69
