18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 28e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Copyright (C) 2008 Apple Inc. All rights reserved. 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Redistribution and use in source and binary forms, with or without 58e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modification, are permitted provided that the following conditions 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * are met: 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer. 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * documentation and/or other materials provided with the distribution. 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "config.h" 278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "CSSSegmentedFontFace.h" 288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "CSSFontFace.h" 308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "CSSFontSelector.h" 318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "FontDescription.h" 328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "SegmentedFontData.h" 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "SimpleFontData.h" 348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace WebCore { 368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectCSSSegmentedFontFace::CSSSegmentedFontFace(CSSFontSelector* fontSelector) 388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project : m_fontSelector(fontSelector) 398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectCSSSegmentedFontFace::~CSSSegmentedFontFace() 438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project pruneTable(); 458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project unsigned size = m_fontFaces.size(); 468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (unsigned i = 0; i < size; i++) 478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_fontFaces[i]->removedFromSegmentedFontFace(this); 488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid CSSSegmentedFontFace::pruneTable() 518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Make sure the glyph page tree prunes out all uses of this custom font. 538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_fontDataTable.isEmpty()) 548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 55148e59acccda9790f6db649b46652f92fa042715Victoria Lease 568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashMap<unsigned, SegmentedFontData*>::iterator end = m_fontDataTable.end(); 578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (HashMap<unsigned, SegmentedFontData*>::iterator it = m_fontDataTable.begin(); it != end; ++it) 58148e59acccda9790f6db649b46652f92fa042715Victoria Lease m_fontSelector->retireCustomFont(it->second); 59148e59acccda9790f6db649b46652f92fa042715Victoria Lease 608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_fontDataTable.clear(); 618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool CSSSegmentedFontFace::isValid() const 648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 65967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch // Valid if at least one font face is valid. 668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project unsigned size = m_fontFaces.size(); 678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (unsigned i = 0; i < size; i++) { 68967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch if (m_fontFaces[i]->isValid()) 69967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch return true; 708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 71967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch return false; 728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid CSSSegmentedFontFace::fontLoaded(CSSFontFace*) 758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 76366835cb6750a97a5e29e0abcc6e3e6705411a72Russell Brenner pruneTable(); 778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid CSSSegmentedFontFace::appendFontFace(PassRefPtr<CSSFontFace> fontFace) 808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project pruneTable(); 828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project fontFace->addedToSegmentedFontFace(this); 838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_fontFaces.append(fontFace); 848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectFontData* CSSSegmentedFontFace::getFontData(const FontDescription& fontDescription) 878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!isValid()) 898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project FontTraitsMask desiredTraitsMask = fontDescription.traitsMask(); 9265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch unsigned hashKey = ((fontDescription.computedPixelSize() + 1) << (FontTraitsMaskWidth + 1)) | ((fontDescription.orientation() == Vertical ? 1 : 0) << FontTraitsMaskWidth) | desiredTraitsMask; 938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project SegmentedFontData* fontData = m_fontDataTable.get(hashKey); 958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (fontData) 968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return fontData; 978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project fontData = new SegmentedFontData(); 998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project unsigned size = m_fontFaces.size(); 1018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (unsigned i = 0; i < size; i++) { 102967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch if (!m_fontFaces[i]->isValid()) 103967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch continue; 1048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project FontTraitsMask traitsMask = m_fontFaces[i]->traitsMask(); 1058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool syntheticBold = !(traitsMask & (FontWeight600Mask | FontWeight700Mask | FontWeight800Mask | FontWeight900Mask)) && (desiredTraitsMask & (FontWeight600Mask | FontWeight700Mask | FontWeight800Mask | FontWeight900Mask)); 1068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool syntheticItalic = !(traitsMask & FontStyleItalicMask) && (desiredTraitsMask & FontStyleItalicMask); 107e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke if (const SimpleFontData* faceFontData = m_fontFaces[i]->getFontData(fontDescription, syntheticBold, syntheticItalic)) { 1088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(!faceFontData->isSegmented()); 1098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project const Vector<CSSFontFace::UnicodeRange>& ranges = m_fontFaces[i]->ranges(); 1108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project unsigned numRanges = ranges.size(); 1118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!numRanges) 112e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke fontData->appendRange(FontDataRange(0, 0x7FFFFFFF, faceFontData)); 1138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 1148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (unsigned j = 0; j < numRanges; ++j) 115e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke fontData->appendRange(FontDataRange(ranges[j].from(), ranges[j].to(), faceFontData)); 1168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (fontData->numRanges()) 1208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_fontDataTable.set(hashKey, fontData); 1218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 1228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete fontData; 1238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project fontData = 0; 1248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return fontData; 1278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 130