Mercurial > hg > release > icedtea7-forest-2.3 > jdk
view src/share/native/sun/font/layout/AnchorTables.cpp @ 6409:47e0b80c2703
8024530: Enhance font process resilience
Reviewed-by: mschoene, bae, srl, prr
author | prr |
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date | Sun, 20 Oct 2013 06:12:08 -0700 |
parents | 00cd9dc3c2b5 |
children |
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/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ /* * * (C) Copyright IBM Corp. 1998-2005 - All Rights Reserved * */ #include "LETypes.h" #include "LEFontInstance.h" #include "DeviceTables.h" #include "AnchorTables.h" #include "LESwaps.h" U_NAMESPACE_BEGIN void AnchorTable::getAnchor(const LETableReference &base, LEGlyphID glyphID, const LEFontInstance *fontInstance, LEPoint &anchor, LEErrorCode &success) const { switch(SWAPW(anchorFormat)) { case 1: { LEReferenceTo<Format1AnchorTable> f1(base, success); f1->getAnchor(f1, fontInstance, anchor, success); break; } case 2: { LEReferenceTo<Format2AnchorTable> f2(base, success); f2->getAnchor(f2, glyphID, fontInstance, anchor, success); break; } case 3: { LEReferenceTo<Format3AnchorTable> f3(base, success); f3->getAnchor(f3, fontInstance, anchor, success); break; } default: { // unknown format: just use x, y coordinate, like format 1... LEReferenceTo<Format1AnchorTable> f1(base, success); f1->getAnchor(f1, fontInstance, anchor, success); break; } } } void Format1AnchorTable::getAnchor(const LEReferenceTo<Format1AnchorTable>& base, const LEFontInstance *fontInstance, LEPoint &anchor, LEErrorCode &success) const { le_int16 x = SWAPW(xCoordinate); le_int16 y = SWAPW(yCoordinate); LEPoint pixels; fontInstance->transformFunits(x, y, pixels); fontInstance->pixelsToUnits(pixels, anchor); } void Format2AnchorTable::getAnchor(const LEReferenceTo<Format2AnchorTable>& base, LEGlyphID glyphID, const LEFontInstance *fontInstance, LEPoint &anchor , LEErrorCode &success) const { LEPoint point; if (! fontInstance->getGlyphPoint(glyphID, SWAPW(anchorPoint), point)) { le_int16 x = SWAPW(xCoordinate); le_int16 y = SWAPW(yCoordinate); fontInstance->transformFunits(x, y, point); } fontInstance->pixelsToUnits(point, anchor); } void Format3AnchorTable::getAnchor(const LEReferenceTo<Format3AnchorTable> &base, const LEFontInstance *fontInstance, LEPoint &anchor, LEErrorCode &success) const { le_int16 x = SWAPW(xCoordinate); le_int16 y = SWAPW(yCoordinate); LEPoint pixels; Offset dtxOffset = SWAPW(xDeviceTableOffset); Offset dtyOffset = SWAPW(yDeviceTableOffset); fontInstance->transformFunits(x, y, pixels); if (dtxOffset != 0) { LEReferenceTo<DeviceTable> dt(base, success, dtxOffset); le_int16 adjx = dt->getAdjustment(dt, (le_int16) fontInstance->getXPixelsPerEm(), success); pixels.fX += adjx; } if (dtyOffset != 0) { LEReferenceTo<DeviceTable> dt(base, success, dtyOffset); le_int16 adjy = dt->getAdjustment(dt, (le_int16) fontInstance->getYPixelsPerEm(), success); pixels.fY += adjy; } fontInstance->pixelsToUnits(pixels, anchor); } U_NAMESPACE_END