1 /* 2 * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann (at) kde.org> 3 * Copyright (C) 2004, 2005 Rob Buis <buis (at) kde.org> 4 * Copyright (C) 2005 Eric Seidel <eric (at) webkit.org> 5 * Copyright (C) 2010 Zoltan Herczeg <zherczeg (at) webkit.org> 6 * Copyright (C) 2011 University of Szeged 7 * Copyright (C) 2011 Renata Hodovan <reni (at) webkit.org> 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 UNIVERSITY OF SZEGED ``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 UNIVERSITY OF SZEGED 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 "platform/graphics/filters/DistantLightSource.h" 33 34 #include "platform/text/TextStream.h" 35 36 namespace blink { 37 38 void DistantLightSource::initPaintingData(PaintingData& paintingData) const 39 { 40 float azimuth = deg2rad(m_azimuth); 41 float elevation = deg2rad(m_elevation); 42 paintingData.lightVector.setX(cosf(azimuth) * cosf(elevation)); 43 paintingData.lightVector.setY(sinf(azimuth) * cosf(elevation)); 44 paintingData.lightVector.setZ(sinf(elevation)); 45 paintingData.lightVectorLength = 1; 46 } 47 48 void DistantLightSource::updatePaintingData(PaintingData&, int, int, float) const 49 { 50 } 51 52 bool DistantLightSource::setAzimuth(float azimuth) 53 { 54 if (m_azimuth == azimuth) 55 return false; 56 m_azimuth = azimuth; 57 return true; 58 } 59 60 bool DistantLightSource::setElevation(float elevation) 61 { 62 if (m_elevation == elevation) 63 return false; 64 m_elevation = elevation; 65 return true; 66 } 67 68 TextStream& DistantLightSource::externalRepresentation(TextStream& ts) const 69 { 70 ts << "[type=DISTANT-LIGHT] "; 71 ts << "[azimuth=\"" << azimuth() << "\"]"; 72 ts << "[elevation=\"" << elevation() << "\"]"; 73 return ts; 74 } 75 76 } // namespace blink 77
