1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove 29*cdf0e10cSrcweir #include "precompiled_canvas.hxx" 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir #include "surface.hxx" 32*cdf0e10cSrcweir #include <basegfx/polygon/b2dpolygonclipper.hxx> 33*cdf0e10cSrcweir #include <basegfx/matrix/b2dhommatrixtools.hxx> 34*cdf0e10cSrcweir #include <comphelper/scopeguard.hxx> 35*cdf0e10cSrcweir #include <boost/bind.hpp> 36*cdf0e10cSrcweir 37*cdf0e10cSrcweir namespace canvas 38*cdf0e10cSrcweir { 39*cdf0e10cSrcweir 40*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 41*cdf0e10cSrcweir // Surface::Surface 42*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 43*cdf0e10cSrcweir 44*cdf0e10cSrcweir Surface::Surface( const PageManagerSharedPtr& rPageManager, 45*cdf0e10cSrcweir const IColorBufferSharedPtr& rColorBuffer, 46*cdf0e10cSrcweir const ::basegfx::B2IPoint& rPos, 47*cdf0e10cSrcweir const ::basegfx::B2ISize& rSize ) : 48*cdf0e10cSrcweir mpColorBuffer(rColorBuffer), 49*cdf0e10cSrcweir mpPageManager(rPageManager), 50*cdf0e10cSrcweir mpFragment(), 51*cdf0e10cSrcweir maSourceOffset(rPos), 52*cdf0e10cSrcweir maSize(rSize), 53*cdf0e10cSrcweir mbIsDirty(true) 54*cdf0e10cSrcweir { 55*cdf0e10cSrcweir } 56*cdf0e10cSrcweir 57*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 58*cdf0e10cSrcweir // Surface::~Surface 59*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 60*cdf0e10cSrcweir 61*cdf0e10cSrcweir Surface::~Surface() 62*cdf0e10cSrcweir { 63*cdf0e10cSrcweir if(mpFragment) 64*cdf0e10cSrcweir mpPageManager->free(mpFragment); 65*cdf0e10cSrcweir } 66*cdf0e10cSrcweir 67*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 68*cdf0e10cSrcweir // Surface::getUVCoords 69*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 70*cdf0e10cSrcweir 71*cdf0e10cSrcweir void Surface::setColorBufferDirty() 72*cdf0e10cSrcweir { 73*cdf0e10cSrcweir mbIsDirty=true; 74*cdf0e10cSrcweir } 75*cdf0e10cSrcweir 76*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 77*cdf0e10cSrcweir // Surface::getUVCoords 78*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 79*cdf0e10cSrcweir 80*cdf0e10cSrcweir basegfx::B2DRectangle Surface::getUVCoords() const 81*cdf0e10cSrcweir { 82*cdf0e10cSrcweir ::basegfx::B2ISize aPageSize(mpPageManager->getPageSize()); 83*cdf0e10cSrcweir ::basegfx::B2IPoint aDestOffset; 84*cdf0e10cSrcweir if( mpFragment ) 85*cdf0e10cSrcweir aDestOffset = mpFragment->getPos(); 86*cdf0e10cSrcweir 87*cdf0e10cSrcweir const double pw( aPageSize.getX() ); 88*cdf0e10cSrcweir const double ph( aPageSize.getY() ); 89*cdf0e10cSrcweir const double ox( aDestOffset.getX() ); 90*cdf0e10cSrcweir const double oy( aDestOffset.getY() ); 91*cdf0e10cSrcweir const double sx( maSize.getX() ); 92*cdf0e10cSrcweir const double sy( maSize.getY() ); 93*cdf0e10cSrcweir 94*cdf0e10cSrcweir return ::basegfx::B2DRectangle( ox/pw, 95*cdf0e10cSrcweir oy/ph, 96*cdf0e10cSrcweir (ox+sx)/pw, 97*cdf0e10cSrcweir (oy+sy)/ph ); 98*cdf0e10cSrcweir } 99*cdf0e10cSrcweir 100*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 101*cdf0e10cSrcweir // Surface::getUVCoords 102*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 103*cdf0e10cSrcweir 104*cdf0e10cSrcweir basegfx::B2DRectangle Surface::getUVCoords( const ::basegfx::B2IPoint& rPos, 105*cdf0e10cSrcweir const ::basegfx::B2ISize& rSize ) const 106*cdf0e10cSrcweir { 107*cdf0e10cSrcweir ::basegfx::B2ISize aPageSize(mpPageManager->getPageSize()); 108*cdf0e10cSrcweir 109*cdf0e10cSrcweir const double pw( aPageSize.getX() ); 110*cdf0e10cSrcweir const double ph( aPageSize.getY() ); 111*cdf0e10cSrcweir const double ox( rPos.getX() ); 112*cdf0e10cSrcweir const double oy( rPos.getY() ); 113*cdf0e10cSrcweir const double sx( rSize.getX() ); 114*cdf0e10cSrcweir const double sy( rSize.getY() ); 115*cdf0e10cSrcweir 116*cdf0e10cSrcweir return ::basegfx::B2DRectangle( ox/pw, 117*cdf0e10cSrcweir oy/ph, 118*cdf0e10cSrcweir (ox+sx)/pw, 119*cdf0e10cSrcweir (oy+sy)/ph ); 120*cdf0e10cSrcweir } 121*cdf0e10cSrcweir 122*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 123*cdf0e10cSrcweir // Surface::draw 124*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 125*cdf0e10cSrcweir 126*cdf0e10cSrcweir bool Surface::draw( double fAlpha, 127*cdf0e10cSrcweir const ::basegfx::B2DPoint& rPos, 128*cdf0e10cSrcweir const ::basegfx::B2DHomMatrix& rTransform ) 129*cdf0e10cSrcweir { 130*cdf0e10cSrcweir IRenderModuleSharedPtr pRenderModule(mpPageManager->getRenderModule()); 131*cdf0e10cSrcweir 132*cdf0e10cSrcweir RenderModuleGuard aGuard( pRenderModule ); 133*cdf0e10cSrcweir 134*cdf0e10cSrcweir prepareRendering(); 135*cdf0e10cSrcweir 136*cdf0e10cSrcweir // convert size to normalized device coordinates 137*cdf0e10cSrcweir const ::basegfx::B2DRectangle& rUV( getUVCoords() ); 138*cdf0e10cSrcweir 139*cdf0e10cSrcweir const double u1(rUV.getMinX()); 140*cdf0e10cSrcweir const double v1(rUV.getMinY()); 141*cdf0e10cSrcweir const double u2(rUV.getMaxX()); 142*cdf0e10cSrcweir const double v2(rUV.getMaxY()); 143*cdf0e10cSrcweir 144*cdf0e10cSrcweir // concat transforms 145*cdf0e10cSrcweir // 1) offset of surface subarea 146*cdf0e10cSrcweir // 2) surface transform 147*cdf0e10cSrcweir // 3) translation to output position [rPos] 148*cdf0e10cSrcweir // 4) scale to normalized device coordinates 149*cdf0e10cSrcweir // 5) flip y-axis 150*cdf0e10cSrcweir // 6) translate to account for viewport transform 151*cdf0e10cSrcweir basegfx::B2DHomMatrix aTransform(basegfx::tools::createTranslateB2DHomMatrix( 152*cdf0e10cSrcweir maSourceOffset.getX(), maSourceOffset.getY())); 153*cdf0e10cSrcweir aTransform = aTransform * rTransform; 154*cdf0e10cSrcweir aTransform.translate(::basegfx::fround(rPos.getX()), 155*cdf0e10cSrcweir ::basegfx::fround(rPos.getY())); 156*cdf0e10cSrcweir 157*cdf0e10cSrcweir /* 158*cdf0e10cSrcweir ###################################### 159*cdf0e10cSrcweir ###################################### 160*cdf0e10cSrcweir ###################################### 161*cdf0e10cSrcweir 162*cdf0e10cSrcweir Y 163*cdf0e10cSrcweir ^+1 164*cdf0e10cSrcweir | 165*cdf0e10cSrcweir 2 | 3 166*cdf0e10cSrcweir x------------x 167*cdf0e10cSrcweir | | | 168*cdf0e10cSrcweir | | | 169*cdf0e10cSrcweir ------|-----O------|------>X 170*cdf0e10cSrcweir -1 | | | +1 171*cdf0e10cSrcweir | | | 172*cdf0e10cSrcweir x------------x 173*cdf0e10cSrcweir 1 | 0 174*cdf0e10cSrcweir | 175*cdf0e10cSrcweir |-1 176*cdf0e10cSrcweir 177*cdf0e10cSrcweir ###################################### 178*cdf0e10cSrcweir ###################################### 179*cdf0e10cSrcweir ###################################### 180*cdf0e10cSrcweir */ 181*cdf0e10cSrcweir 182*cdf0e10cSrcweir const ::basegfx::B2DPoint& p0(aTransform * ::basegfx::B2DPoint(maSize.getX(),maSize.getY())); 183*cdf0e10cSrcweir const ::basegfx::B2DPoint& p1(aTransform * ::basegfx::B2DPoint(0.0,maSize.getY())); 184*cdf0e10cSrcweir const ::basegfx::B2DPoint& p2(aTransform * ::basegfx::B2DPoint(0.0,0.0)); 185*cdf0e10cSrcweir const ::basegfx::B2DPoint& p3(aTransform * ::basegfx::B2DPoint(maSize.getX(),0.0)); 186*cdf0e10cSrcweir 187*cdf0e10cSrcweir canvas::Vertex vertex; 188*cdf0e10cSrcweir vertex.r = 1.0f; 189*cdf0e10cSrcweir vertex.g = 1.0f; 190*cdf0e10cSrcweir vertex.b = 1.0f; 191*cdf0e10cSrcweir vertex.a = static_cast<float>(fAlpha); 192*cdf0e10cSrcweir vertex.z = 0.0f; 193*cdf0e10cSrcweir 194*cdf0e10cSrcweir { 195*cdf0e10cSrcweir pRenderModule->beginPrimitive( canvas::IRenderModule::PRIMITIVE_TYPE_QUAD ); 196*cdf0e10cSrcweir 197*cdf0e10cSrcweir // issue an endPrimitive() when leaving the scope 198*cdf0e10cSrcweir const ::comphelper::ScopeGuard aScopeGuard( 199*cdf0e10cSrcweir boost::bind( &::canvas::IRenderModule::endPrimitive, 200*cdf0e10cSrcweir ::boost::ref(pRenderModule) ) ); 201*cdf0e10cSrcweir 202*cdf0e10cSrcweir vertex.u=static_cast<float>(u2); vertex.v=static_cast<float>(v2); 203*cdf0e10cSrcweir vertex.x=static_cast<float>(p0.getX()); vertex.y=static_cast<float>(p0.getY()); 204*cdf0e10cSrcweir pRenderModule->pushVertex(vertex); 205*cdf0e10cSrcweir 206*cdf0e10cSrcweir vertex.u=static_cast<float>(u1); vertex.v=static_cast<float>(v2); 207*cdf0e10cSrcweir vertex.x=static_cast<float>(p1.getX()); vertex.y=static_cast<float>(p1.getY()); 208*cdf0e10cSrcweir pRenderModule->pushVertex(vertex); 209*cdf0e10cSrcweir 210*cdf0e10cSrcweir vertex.u=static_cast<float>(u1); vertex.v=static_cast<float>(v1); 211*cdf0e10cSrcweir vertex.x=static_cast<float>(p2.getX()); vertex.y=static_cast<float>(p2.getY()); 212*cdf0e10cSrcweir pRenderModule->pushVertex(vertex); 213*cdf0e10cSrcweir 214*cdf0e10cSrcweir vertex.u=static_cast<float>(u2); vertex.v=static_cast<float>(v1); 215*cdf0e10cSrcweir vertex.x=static_cast<float>(p3.getX()); vertex.y=static_cast<float>(p3.getY()); 216*cdf0e10cSrcweir pRenderModule->pushVertex(vertex); 217*cdf0e10cSrcweir } 218*cdf0e10cSrcweir 219*cdf0e10cSrcweir return !(pRenderModule->isError()); 220*cdf0e10cSrcweir } 221*cdf0e10cSrcweir 222*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 223*cdf0e10cSrcweir // Surface::drawRectangularArea 224*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 225*cdf0e10cSrcweir 226*cdf0e10cSrcweir bool Surface::drawRectangularArea( 227*cdf0e10cSrcweir double fAlpha, 228*cdf0e10cSrcweir const ::basegfx::B2DPoint& rPos, 229*cdf0e10cSrcweir const ::basegfx::B2DRectangle& rArea, 230*cdf0e10cSrcweir const ::basegfx::B2DHomMatrix& rTransform ) 231*cdf0e10cSrcweir { 232*cdf0e10cSrcweir if( rArea.isEmpty() ) 233*cdf0e10cSrcweir return true; // immediate exit for empty area 234*cdf0e10cSrcweir 235*cdf0e10cSrcweir IRenderModuleSharedPtr pRenderModule(mpPageManager->getRenderModule()); 236*cdf0e10cSrcweir 237*cdf0e10cSrcweir RenderModuleGuard aGuard( pRenderModule ); 238*cdf0e10cSrcweir 239*cdf0e10cSrcweir prepareRendering(); 240*cdf0e10cSrcweir 241*cdf0e10cSrcweir // these positions are relative to the texture 242*cdf0e10cSrcweir ::basegfx::B2IPoint aPos1( 243*cdf0e10cSrcweir ::basegfx::fround(rArea.getMinimum().getX()), 244*cdf0e10cSrcweir ::basegfx::fround(rArea.getMinimum().getY())); 245*cdf0e10cSrcweir ::basegfx::B2IPoint aPos2( 246*cdf0e10cSrcweir ::basegfx::fround(rArea.getMaximum().getX()), 247*cdf0e10cSrcweir ::basegfx::fround(rArea.getMaximum().getY()) ); 248*cdf0e10cSrcweir 249*cdf0e10cSrcweir // clip the positions to the area this surface covers 250*cdf0e10cSrcweir aPos1.setX(::std::max(aPos1.getX(),maSourceOffset.getX())); 251*cdf0e10cSrcweir aPos1.setY(::std::max(aPos1.getY(),maSourceOffset.getY())); 252*cdf0e10cSrcweir aPos2.setX(::std::min(aPos2.getX(),maSourceOffset.getX()+maSize.getX())); 253*cdf0e10cSrcweir aPos2.setY(::std::min(aPos2.getY(),maSourceOffset.getY()+maSize.getY())); 254*cdf0e10cSrcweir 255*cdf0e10cSrcweir // if the resulting area is empty, return immediately 256*cdf0e10cSrcweir ::basegfx::B2IVector aSize(aPos2 - aPos1); 257*cdf0e10cSrcweir if(aSize.getX() <= 0 || aSize.getY() <= 0) 258*cdf0e10cSrcweir return true; 259*cdf0e10cSrcweir 260*cdf0e10cSrcweir ::basegfx::B2IPoint aDestOffset; 261*cdf0e10cSrcweir if( mpFragment ) 262*cdf0e10cSrcweir aDestOffset = mpFragment->getPos(); 263*cdf0e10cSrcweir 264*cdf0e10cSrcweir // convert size to normalized device coordinates 265*cdf0e10cSrcweir const ::basegfx::B2DRectangle& rUV( 266*cdf0e10cSrcweir getUVCoords(aPos1 - maSourceOffset + aDestOffset, 267*cdf0e10cSrcweir aSize) ); 268*cdf0e10cSrcweir const double u1(rUV.getMinX()); 269*cdf0e10cSrcweir const double v1(rUV.getMinY()); 270*cdf0e10cSrcweir const double u2(rUV.getMaxX()); 271*cdf0e10cSrcweir const double v2(rUV.getMaxY()); 272*cdf0e10cSrcweir 273*cdf0e10cSrcweir // concatenate transforms 274*cdf0e10cSrcweir // 1) offset of surface subarea 275*cdf0e10cSrcweir // 2) surface transform 276*cdf0e10cSrcweir // 3) translation to output position [rPos] 277*cdf0e10cSrcweir basegfx::B2DHomMatrix aTransform(basegfx::tools::createTranslateB2DHomMatrix(aPos1.getX(), aPos1.getY())); 278*cdf0e10cSrcweir aTransform = aTransform * rTransform; 279*cdf0e10cSrcweir aTransform.translate(::basegfx::fround(rPos.getX()), 280*cdf0e10cSrcweir ::basegfx::fround(rPos.getY())); 281*cdf0e10cSrcweir 282*cdf0e10cSrcweir 283*cdf0e10cSrcweir /* 284*cdf0e10cSrcweir ###################################### 285*cdf0e10cSrcweir ###################################### 286*cdf0e10cSrcweir ###################################### 287*cdf0e10cSrcweir 288*cdf0e10cSrcweir Y 289*cdf0e10cSrcweir ^+1 290*cdf0e10cSrcweir | 291*cdf0e10cSrcweir 2 | 3 292*cdf0e10cSrcweir x------------x 293*cdf0e10cSrcweir | | | 294*cdf0e10cSrcweir | | | 295*cdf0e10cSrcweir ------|-----O------|------>X 296*cdf0e10cSrcweir -1 | | | +1 297*cdf0e10cSrcweir | | | 298*cdf0e10cSrcweir x------------x 299*cdf0e10cSrcweir 1 | 0 300*cdf0e10cSrcweir | 301*cdf0e10cSrcweir |-1 302*cdf0e10cSrcweir 303*cdf0e10cSrcweir ###################################### 304*cdf0e10cSrcweir ###################################### 305*cdf0e10cSrcweir ###################################### 306*cdf0e10cSrcweir */ 307*cdf0e10cSrcweir 308*cdf0e10cSrcweir const ::basegfx::B2DPoint& p0(aTransform * ::basegfx::B2DPoint(aSize.getX(),aSize.getY())); 309*cdf0e10cSrcweir const ::basegfx::B2DPoint& p1(aTransform * ::basegfx::B2DPoint(0.0, aSize.getY())); 310*cdf0e10cSrcweir const ::basegfx::B2DPoint& p2(aTransform * ::basegfx::B2DPoint(0.0, 0.0)); 311*cdf0e10cSrcweir const ::basegfx::B2DPoint& p3(aTransform * ::basegfx::B2DPoint(aSize.getX(),0.0)); 312*cdf0e10cSrcweir 313*cdf0e10cSrcweir canvas::Vertex vertex; 314*cdf0e10cSrcweir vertex.r = 1.0f; 315*cdf0e10cSrcweir vertex.g = 1.0f; 316*cdf0e10cSrcweir vertex.b = 1.0f; 317*cdf0e10cSrcweir vertex.a = static_cast<float>(fAlpha); 318*cdf0e10cSrcweir vertex.z = 0.0f; 319*cdf0e10cSrcweir 320*cdf0e10cSrcweir { 321*cdf0e10cSrcweir pRenderModule->beginPrimitive( canvas::IRenderModule::PRIMITIVE_TYPE_QUAD ); 322*cdf0e10cSrcweir 323*cdf0e10cSrcweir // issue an endPrimitive() when leaving the scope 324*cdf0e10cSrcweir const ::comphelper::ScopeGuard aScopeGuard( 325*cdf0e10cSrcweir boost::bind( &::canvas::IRenderModule::endPrimitive, 326*cdf0e10cSrcweir ::boost::ref(pRenderModule) ) ); 327*cdf0e10cSrcweir 328*cdf0e10cSrcweir vertex.u=static_cast<float>(u2); vertex.v=static_cast<float>(v2); 329*cdf0e10cSrcweir vertex.x=static_cast<float>(p0.getX()); vertex.y=static_cast<float>(p0.getY()); 330*cdf0e10cSrcweir pRenderModule->pushVertex(vertex); 331*cdf0e10cSrcweir 332*cdf0e10cSrcweir vertex.u=static_cast<float>(u1); vertex.v=static_cast<float>(v2); 333*cdf0e10cSrcweir vertex.x=static_cast<float>(p1.getX()); vertex.y=static_cast<float>(p1.getY()); 334*cdf0e10cSrcweir pRenderModule->pushVertex(vertex); 335*cdf0e10cSrcweir 336*cdf0e10cSrcweir vertex.u=static_cast<float>(u1); vertex.v=static_cast<float>(v1); 337*cdf0e10cSrcweir vertex.x=static_cast<float>(p2.getX()); vertex.y=static_cast<float>(p2.getY()); 338*cdf0e10cSrcweir pRenderModule->pushVertex(vertex); 339*cdf0e10cSrcweir 340*cdf0e10cSrcweir vertex.u=static_cast<float>(u2); vertex.v=static_cast<float>(v1); 341*cdf0e10cSrcweir vertex.x=static_cast<float>(p3.getX()); vertex.y=static_cast<float>(p3.getY()); 342*cdf0e10cSrcweir pRenderModule->pushVertex(vertex); 343*cdf0e10cSrcweir } 344*cdf0e10cSrcweir 345*cdf0e10cSrcweir return !(pRenderModule->isError()); 346*cdf0e10cSrcweir } 347*cdf0e10cSrcweir 348*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 349*cdf0e10cSrcweir // Surface::drawWithClip 350*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 351*cdf0e10cSrcweir 352*cdf0e10cSrcweir bool Surface::drawWithClip( double fAlpha, 353*cdf0e10cSrcweir const ::basegfx::B2DPoint& rPos, 354*cdf0e10cSrcweir const ::basegfx::B2DPolygon& rClipPoly, 355*cdf0e10cSrcweir const ::basegfx::B2DHomMatrix& rTransform ) 356*cdf0e10cSrcweir { 357*cdf0e10cSrcweir IRenderModuleSharedPtr pRenderModule(mpPageManager->getRenderModule()); 358*cdf0e10cSrcweir 359*cdf0e10cSrcweir RenderModuleGuard aGuard( pRenderModule ); 360*cdf0e10cSrcweir 361*cdf0e10cSrcweir prepareRendering(); 362*cdf0e10cSrcweir 363*cdf0e10cSrcweir // untransformed surface rectangle, relative to the whole 364*cdf0e10cSrcweir // image (note: this surface might actually only be a tile of 365*cdf0e10cSrcweir // the whole image, with non-zero maSourceOffset) 366*cdf0e10cSrcweir const double x1(maSourceOffset.getX()); 367*cdf0e10cSrcweir const double y1(maSourceOffset.getY()); 368*cdf0e10cSrcweir const double w(maSize.getX()); 369*cdf0e10cSrcweir const double h(maSize.getY()); 370*cdf0e10cSrcweir const double x2(x1+w); 371*cdf0e10cSrcweir const double y2(y1+h); 372*cdf0e10cSrcweir const ::basegfx::B2DRectangle aSurfaceClipRect(x1,y1,x2,y2); 373*cdf0e10cSrcweir 374*cdf0e10cSrcweir // concatenate transforms 375*cdf0e10cSrcweir // we use 'fround' here to avoid rounding errors. the vertices will 376*cdf0e10cSrcweir // be transformed by the overall transform and uv coordinates will 377*cdf0e10cSrcweir // be calculated from the result, and this is why we need to use 378*cdf0e10cSrcweir // integer coordinates here... 379*cdf0e10cSrcweir basegfx::B2DHomMatrix aTransform; 380*cdf0e10cSrcweir aTransform = aTransform * rTransform; 381*cdf0e10cSrcweir aTransform.translate(::basegfx::fround(rPos.getX()), 382*cdf0e10cSrcweir ::basegfx::fround(rPos.getY())); 383*cdf0e10cSrcweir 384*cdf0e10cSrcweir /* 385*cdf0e10cSrcweir ###################################### 386*cdf0e10cSrcweir ###################################### 387*cdf0e10cSrcweir ###################################### 388*cdf0e10cSrcweir 389*cdf0e10cSrcweir Y 390*cdf0e10cSrcweir ^+1 391*cdf0e10cSrcweir | 392*cdf0e10cSrcweir 2 | 3 393*cdf0e10cSrcweir x------------x 394*cdf0e10cSrcweir | | | 395*cdf0e10cSrcweir | | | 396*cdf0e10cSrcweir ------|-----O------|------>X 397*cdf0e10cSrcweir -1 | | | +1 398*cdf0e10cSrcweir | | | 399*cdf0e10cSrcweir x------------x 400*cdf0e10cSrcweir 1 | 0 401*cdf0e10cSrcweir | 402*cdf0e10cSrcweir |-1 403*cdf0e10cSrcweir 404*cdf0e10cSrcweir ###################################### 405*cdf0e10cSrcweir ###################################### 406*cdf0e10cSrcweir ###################################### 407*cdf0e10cSrcweir */ 408*cdf0e10cSrcweir 409*cdf0e10cSrcweir // uv coordinates that map the surface rectangle 410*cdf0e10cSrcweir // to the destination rectangle. 411*cdf0e10cSrcweir const ::basegfx::B2DRectangle& rUV( getUVCoords() ); 412*cdf0e10cSrcweir 413*cdf0e10cSrcweir basegfx::B2DPolygon rTriangleList(basegfx::tools::clipTriangleListOnRange(rClipPoly, 414*cdf0e10cSrcweir aSurfaceClipRect)); 415*cdf0e10cSrcweir 416*cdf0e10cSrcweir // Push vertices to backend renderer 417*cdf0e10cSrcweir if(const sal_uInt32 nVertexCount = rTriangleList.count()) 418*cdf0e10cSrcweir { 419*cdf0e10cSrcweir canvas::Vertex vertex; 420*cdf0e10cSrcweir vertex.r = 1.0f; 421*cdf0e10cSrcweir vertex.g = 1.0f; 422*cdf0e10cSrcweir vertex.b = 1.0f; 423*cdf0e10cSrcweir vertex.a = static_cast<float>(fAlpha); 424*cdf0e10cSrcweir vertex.z = 0.0f; 425*cdf0e10cSrcweir 426*cdf0e10cSrcweir #if defined(TRIANGLE_LOG) && defined(DBG_UTIL) 427*cdf0e10cSrcweir OSL_TRACE( "Surface::draw(): numvertices %d numtriangles %d\n", 428*cdf0e10cSrcweir nVertexCount, 429*cdf0e10cSrcweir nVertexCount/3 ); 430*cdf0e10cSrcweir #endif 431*cdf0e10cSrcweir 432*cdf0e10cSrcweir pRenderModule->beginPrimitive( canvas::IRenderModule::PRIMITIVE_TYPE_TRIANGLE ); 433*cdf0e10cSrcweir 434*cdf0e10cSrcweir // issue an endPrimitive() when leaving the scope 435*cdf0e10cSrcweir const ::comphelper::ScopeGuard aScopeGuard( 436*cdf0e10cSrcweir boost::bind( &::canvas::IRenderModule::endPrimitive, 437*cdf0e10cSrcweir ::boost::ref(pRenderModule) ) ); 438*cdf0e10cSrcweir 439*cdf0e10cSrcweir for(sal_uInt32 nIndex=0; nIndex<nVertexCount; ++nIndex) 440*cdf0e10cSrcweir { 441*cdf0e10cSrcweir const basegfx::B2DPoint &aPoint = rTriangleList.getB2DPoint(nIndex); 442*cdf0e10cSrcweir basegfx::B2DPoint aTransformedPoint(aTransform * aPoint); 443*cdf0e10cSrcweir const double tu(((aPoint.getX()-aSurfaceClipRect.getMinX())*rUV.getWidth()/w)+rUV.getMinX()); 444*cdf0e10cSrcweir const double tv(((aPoint.getY()-aSurfaceClipRect.getMinY())*rUV.getHeight()/h)+rUV.getMinY()); 445*cdf0e10cSrcweir vertex.u=static_cast<float>(tu); 446*cdf0e10cSrcweir vertex.v=static_cast<float>(tv); 447*cdf0e10cSrcweir vertex.x=static_cast<float>(aTransformedPoint.getX()); 448*cdf0e10cSrcweir vertex.y=static_cast<float>(aTransformedPoint.getY()); 449*cdf0e10cSrcweir pRenderModule->pushVertex(vertex); 450*cdf0e10cSrcweir } 451*cdf0e10cSrcweir } 452*cdf0e10cSrcweir 453*cdf0e10cSrcweir return !(pRenderModule->isError()); 454*cdf0e10cSrcweir } 455*cdf0e10cSrcweir 456*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 457*cdf0e10cSrcweir // Surface::prepareRendering 458*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 459*cdf0e10cSrcweir 460*cdf0e10cSrcweir void Surface::prepareRendering() 461*cdf0e10cSrcweir { 462*cdf0e10cSrcweir mpPageManager->validatePages(); 463*cdf0e10cSrcweir 464*cdf0e10cSrcweir // clients requested to draw from this surface, therefore one 465*cdf0e10cSrcweir // of the above implemented concrete rendering operations 466*cdf0e10cSrcweir // was triggered. we therefore need to ask the pagemanager 467*cdf0e10cSrcweir // to allocate some space for the fragment we're dedicated to. 468*cdf0e10cSrcweir if(!(mpFragment)) 469*cdf0e10cSrcweir { 470*cdf0e10cSrcweir mpFragment = mpPageManager->allocateSpace(maSize); 471*cdf0e10cSrcweir if( mpFragment ) 472*cdf0e10cSrcweir { 473*cdf0e10cSrcweir mpFragment->setColorBuffer(mpColorBuffer); 474*cdf0e10cSrcweir mpFragment->setSourceOffset(maSourceOffset); 475*cdf0e10cSrcweir } 476*cdf0e10cSrcweir } 477*cdf0e10cSrcweir 478*cdf0e10cSrcweir if( mpFragment ) 479*cdf0e10cSrcweir { 480*cdf0e10cSrcweir // now we need to 'select' the fragment, which will in turn 481*cdf0e10cSrcweir // pull informations from the image on demand. 482*cdf0e10cSrcweir // in case this fragment is still not located on any of the 483*cdf0e10cSrcweir // available pages ['naked'], we force the page manager to 484*cdf0e10cSrcweir // do it now, no way to defer this any longer... 485*cdf0e10cSrcweir if(!(mpFragment->select(mbIsDirty))) 486*cdf0e10cSrcweir mpPageManager->nakedFragment(mpFragment); 487*cdf0e10cSrcweir 488*cdf0e10cSrcweir } 489*cdf0e10cSrcweir mbIsDirty=false; 490*cdf0e10cSrcweir } 491*cdf0e10cSrcweir 492*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 493*cdf0e10cSrcweir // End of file 494*cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////////// 495*cdf0e10cSrcweir } 496*cdf0e10cSrcweir 497