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Diffstat (limited to 'drawinglayer/source/processor3d/zbufferprocessor3d.cxx')
| -rw-r--r-- | drawinglayer/source/processor3d/zbufferprocessor3d.cxx | 638 |
1 files changed, 638 insertions, 0 deletions
diff --git a/drawinglayer/source/processor3d/zbufferprocessor3d.cxx b/drawinglayer/source/processor3d/zbufferprocessor3d.cxx new file mode 100644 index 000000000..aa319161b --- /dev/null +++ b/drawinglayer/source/processor3d/zbufferprocessor3d.cxx @@ -0,0 +1,638 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <processor3d/zbufferprocessor3d.hxx> +#include <basegfx/raster/bzpixelraster.hxx> +#include <basegfx/raster/rasterconvert3d.hxx> +#include <drawinglayer/attribute/materialattribute3d.hxx> +#include <texture/texture.hxx> +#include <basegfx/polygon/b3dpolygon.hxx> +#include <basegfx/polygon/b3dpolypolygon.hxx> +#include <basegfx/polygon/b3dpolygontools.hxx> +#include <basegfx/polygon/b3dpolypolygontools.hxx> +#include <drawinglayer/attribute/sdrlightingattribute3d.hxx> +#include <o3tl/safeint.hxx> +#include <svtools/optionsdrawinglayer.hxx> + +using namespace com::sun::star; + +class ZBufferRasterConverter3D : public basegfx::RasterConverter3D +{ +private: + const drawinglayer::processor3d::DefaultProcessor3D& mrProcessor; + basegfx::BZPixelRaster& mrBuffer; + + // interpolators for a single line span + basegfx::ip_single maIntZ; + basegfx::ip_triple maIntColor; + basegfx::ip_triple maIntNormal; + basegfx::ip_double maIntTexture; + basegfx::ip_triple maIntInvTexture; + + // current material to use for rasterconversion + const drawinglayer::attribute::MaterialAttribute3D* mpCurrentMaterial; + + // some boolean flags for line span interpolator usages + bool mbModifyColor : 1; + bool mbUseTex : 1; + bool mbHasTexCoor : 1; + bool mbHasInvTexCoor : 1; + bool mbUseNrm : 1; + bool mbUseCol : 1; + + void getTextureCoor(basegfx::B2DPoint& rTarget) const + { + if(mbHasTexCoor) + { + rTarget.setX(maIntTexture.getX().getVal()); + rTarget.setY(maIntTexture.getY().getVal()); + } + else if(mbHasInvTexCoor) + { + const double fZFactor(maIntInvTexture.getZ().getVal()); + const double fInvZFactor(basegfx::fTools::equalZero(fZFactor) ? 1.0 : 1.0 / fZFactor); + rTarget.setX(maIntInvTexture.getX().getVal() * fInvZFactor); + rTarget.setY(maIntInvTexture.getY().getVal() * fInvZFactor); + } + } + + void incrementLineSpanInterpolators(double fStep) + { + maIntZ.increment(fStep); + + if(mbUseTex) + { + if(mbHasTexCoor) + { + maIntTexture.increment(fStep); + } + else if(mbHasInvTexCoor) + { + maIntInvTexture.increment(fStep); + } + } + + if(mbUseNrm) + { + maIntNormal.increment(fStep); + } + + if(mbUseCol) + { + maIntColor.increment(fStep); + } + } + + double decideColorAndOpacity(basegfx::BColor& rColor) const + { + // init values with full opacity and material color + OSL_ENSURE(nullptr != mpCurrentMaterial, "CurrentMaterial not set (!)"); + double fOpacity(1.0); + rColor = mpCurrentMaterial->getColor(); + + if(mbUseTex) + { + basegfx::B2DPoint aTexCoor(0.0, 0.0); + getTextureCoor(aTexCoor); + + if(mrProcessor.getGeoTexSvx()) + { + // calc color in spot. This may also set to invisible already when + // e.g. bitmap textures have transparent parts + mrProcessor.getGeoTexSvx()->modifyBColor(aTexCoor, rColor, fOpacity); + } + + if(basegfx::fTools::more(fOpacity, 0.0) && mrProcessor.getTransparenceGeoTexSvx()) + { + // calc opacity. Object has a 2nd texture, a transparence texture + mrProcessor.getTransparenceGeoTexSvx()->modifyOpacity(aTexCoor, fOpacity); + } + } + + if(basegfx::fTools::more(fOpacity, 0.0)) + { + if(mrProcessor.getGeoTexSvx()) + { + if(mbUseNrm) + { + // blend texture with phong + rColor = mrProcessor.getSdrLightingAttribute().solveColorModel( + basegfx::B3DVector(maIntNormal.getX().getVal(), maIntNormal.getY().getVal(), maIntNormal.getZ().getVal()), + rColor, + mpCurrentMaterial->getSpecular(), + mpCurrentMaterial->getEmission(), + mpCurrentMaterial->getSpecularIntensity()); + } + else if(mbUseCol) + { + // blend texture with gouraud + basegfx::BColor aBlendColor(maIntColor.getX().getVal(), maIntColor.getY().getVal(), maIntColor.getZ().getVal()); + rColor *= aBlendColor; + } + else if(mrProcessor.getModulate()) + { + // blend texture with single material color + rColor *= mpCurrentMaterial->getColor(); + } + } + else + { + if(mbUseNrm) + { + // modify color with phong + rColor = mrProcessor.getSdrLightingAttribute().solveColorModel( + basegfx::B3DVector(maIntNormal.getX().getVal(), maIntNormal.getY().getVal(), maIntNormal.getZ().getVal()), + rColor, + mpCurrentMaterial->getSpecular(), + mpCurrentMaterial->getEmission(), + mpCurrentMaterial->getSpecularIntensity()); + } + else if(mbUseCol) + { + // modify color with gouraud + rColor.setRed(maIntColor.getX().getVal()); + rColor.setGreen(maIntColor.getY().getVal()); + rColor.setBlue(maIntColor.getZ().getVal()); + } + } + + if(mbModifyColor) + { + rColor = mrProcessor.getBColorModifierStack().getModifiedColor(rColor); + } + } + + return fOpacity; + } + + void setupLineSpanInterpolators(const basegfx::RasterConversionLineEntry3D& rA, const basegfx::RasterConversionLineEntry3D& rB) + { + // get inverse XDelta + const double xInvDelta(1.0 / (rB.getX().getVal() - rA.getX().getVal())); + + // prepare Z-interpolator + const double fZA(rA.getZ().getVal()); + const double fZB(rB.getZ().getVal()); + maIntZ = basegfx::ip_single(fZA, (fZB - fZA) * xInvDelta); + + // get bools and init other interpolators on demand accordingly + mbModifyColor = mrProcessor.getBColorModifierStack().count(); + mbHasTexCoor = SCANLINE_EMPTY_INDEX != rA.getTextureIndex() && SCANLINE_EMPTY_INDEX != rB.getTextureIndex(); + mbHasInvTexCoor = SCANLINE_EMPTY_INDEX != rA.getInverseTextureIndex() && SCANLINE_EMPTY_INDEX != rB.getInverseTextureIndex(); + const bool bTextureActive(mrProcessor.getGeoTexSvx() || mrProcessor.getTransparenceGeoTexSvx()); + mbUseTex = bTextureActive && (mbHasTexCoor || mbHasInvTexCoor || mrProcessor.getSimpleTextureActive()); + const bool bUseColorTex(mbUseTex && mrProcessor.getGeoTexSvx()); + const bool bNeedNrmOrCol(!bUseColorTex || mrProcessor.getModulate()); + mbUseNrm = bNeedNrmOrCol && SCANLINE_EMPTY_INDEX != rA.getNormalIndex() && SCANLINE_EMPTY_INDEX != rB.getNormalIndex(); + mbUseCol = !mbUseNrm && bNeedNrmOrCol && SCANLINE_EMPTY_INDEX != rA.getColorIndex() && SCANLINE_EMPTY_INDEX != rB.getColorIndex(); + + if(mbUseTex) + { + if(mbHasTexCoor) + { + const basegfx::ip_double& rTA(getTextureInterpolators()[rA.getTextureIndex()]); + const basegfx::ip_double& rTB(getTextureInterpolators()[rB.getTextureIndex()]); + maIntTexture = basegfx::ip_double( + rTA.getX().getVal(), (rTB.getX().getVal() - rTA.getX().getVal()) * xInvDelta, + rTA.getY().getVal(), (rTB.getY().getVal() - rTA.getY().getVal()) * xInvDelta); + } + else if(mbHasInvTexCoor) + { + const basegfx::ip_triple& rITA(getInverseTextureInterpolators()[rA.getInverseTextureIndex()]); + const basegfx::ip_triple& rITB(getInverseTextureInterpolators()[rB.getInverseTextureIndex()]); + maIntInvTexture = basegfx::ip_triple( + rITA.getX().getVal(), (rITB.getX().getVal() - rITA.getX().getVal()) * xInvDelta, + rITA.getY().getVal(), (rITB.getY().getVal() - rITA.getY().getVal()) * xInvDelta, + rITA.getZ().getVal(), (rITB.getZ().getVal() - rITA.getZ().getVal()) * xInvDelta); + } + } + + if(mbUseNrm) + { + const basegfx::ip_triple& rNA(getNormalInterpolators()[rA.getNormalIndex()]); + const basegfx::ip_triple& rNB(getNormalInterpolators()[rB.getNormalIndex()]); + maIntNormal = basegfx::ip_triple( + rNA.getX().getVal(), (rNB.getX().getVal() - rNA.getX().getVal()) * xInvDelta, + rNA.getY().getVal(), (rNB.getY().getVal() - rNA.getY().getVal()) * xInvDelta, + rNA.getZ().getVal(), (rNB.getZ().getVal() - rNA.getZ().getVal()) * xInvDelta); + } + + if(mbUseCol) + { + const basegfx::ip_triple& rCA(getColorInterpolators()[rA.getColorIndex()]); + const basegfx::ip_triple& rCB(getColorInterpolators()[rB.getColorIndex()]); + maIntColor = basegfx::ip_triple( + rCA.getX().getVal(), (rCB.getX().getVal() - rCA.getX().getVal()) * xInvDelta, + rCA.getY().getVal(), (rCB.getY().getVal() - rCA.getY().getVal()) * xInvDelta, + rCA.getZ().getVal(), (rCB.getZ().getVal() - rCA.getZ().getVal()) * xInvDelta); + } + } + + virtual void processLineSpan(const basegfx::RasterConversionLineEntry3D& rA, const basegfx::RasterConversionLineEntry3D& rB, sal_Int32 nLine, sal_uInt32 nSpanCount) override; + +public: + ZBufferRasterConverter3D(basegfx::BZPixelRaster& rBuffer, const drawinglayer::processor3d::ZBufferProcessor3D& rProcessor) + : mrProcessor(rProcessor), + mrBuffer(rBuffer), + mpCurrentMaterial(nullptr), + mbModifyColor(false), + mbUseTex(false), + mbHasTexCoor(false), + mbHasInvTexCoor(false), + mbUseNrm(false), + mbUseCol(false) + {} + + void setCurrentMaterial(const drawinglayer::attribute::MaterialAttribute3D& rMaterial) + { + mpCurrentMaterial = &rMaterial; + } +}; + +void ZBufferRasterConverter3D::processLineSpan(const basegfx::RasterConversionLineEntry3D& rA, const basegfx::RasterConversionLineEntry3D& rB, sal_Int32 nLine, sal_uInt32 nSpanCount) +{ + if(nSpanCount & 0x0001) + return; + + if(nLine < 0 || o3tl::make_unsigned(nLine) >= mrBuffer.getHeight()) + return; + + sal_uInt32 nXA(std::min(mrBuffer.getWidth(), static_cast<sal_uInt32>(std::max(sal_Int32(0), basegfx::fround(rA.getX().getVal()))))); + const sal_uInt32 nXB(std::min(mrBuffer.getWidth(), static_cast<sal_uInt32>(std::max(sal_Int32(0), basegfx::fround(rB.getX().getVal()))))); + + if(nXA >= nXB) + return; + + // prepare the span interpolators + setupLineSpanInterpolators(rA, rB); + + // bring span interpolators to start condition by incrementing with the possible difference of + // clamped and non-clamped XStart. Interpolators are setup relying on double precision + // X-values, so that difference is the correct value to compensate for possible clampings + incrementLineSpanInterpolators(static_cast<double>(nXA) - rA.getX().getVal()); + + // prepare scanline index + sal_uInt32 nScanlineIndex(mrBuffer.getIndexFromXY(nXA, static_cast<sal_uInt32>(nLine))); + basegfx::BColor aNewColor; + + while(nXA < nXB) + { + // early-test Z values if we need to do anything at all + const double fNewZ(std::clamp(maIntZ.getVal(), 0.0, 65535.0)); + const sal_uInt16 nNewZ(static_cast< sal_uInt16 >(fNewZ)); + sal_uInt16& rOldZ(mrBuffer.getZ(nScanlineIndex)); + + if(nNewZ > rOldZ) + { + // detect color and opacity for this pixel + const sal_uInt16 nOpacity(std::max(sal_Int16(0), static_cast< sal_Int16 >(decideColorAndOpacity(aNewColor) * 255.0))); + + if(nOpacity > 0) + { + // avoid color overrun + aNewColor.clamp(); + + if(nOpacity >= 0x00ff) + { + // full opacity (not transparent), set z and color + rOldZ = nNewZ; + mrBuffer.getBPixel(nScanlineIndex) = basegfx::BPixel(aNewColor, 0xff); + } + else + { + basegfx::BPixel& rDest = mrBuffer.getBPixel(nScanlineIndex); + + if(rDest.getAlpha()) + { + // mix new color by using + // color' = color * (1 - opacity) + newcolor * opacity + const sal_uInt16 nTransparence(255 - nOpacity); + rDest.setRed(static_cast<sal_uInt8>(((rDest.getRed() * nTransparence) + (static_cast<sal_uInt16>(255.0 * aNewColor.getRed()) * nOpacity)) >> 8)); + rDest.setGreen(static_cast<sal_uInt8>(((rDest.getGreen() * nTransparence) + (static_cast<sal_uInt16>(255.0 * aNewColor.getGreen()) * nOpacity)) >> 8)); + rDest.setBlue(static_cast<sal_uInt8>(((rDest.getBlue() * nTransparence) + (static_cast<sal_uInt16>(255.0 * aNewColor.getBlue()) * nOpacity)) >> 8)); + + if(255 != rDest.getAlpha()) + { + // both are transparent, mix new opacity by using + // opacity = newopacity * (1 - oldopacity) + oldopacity + rDest.setAlpha(static_cast<sal_uInt8>((nOpacity * (255 - rDest.getAlpha())) >> 8) + rDest.getAlpha()); + } + } + else + { + // dest is unused, set color + rDest = basegfx::BPixel(aNewColor, static_cast<sal_uInt8>(nOpacity)); + } + } + } + } + + // increments + nScanlineIndex++; + nXA++; + incrementLineSpanInterpolators(1.0); + } +} + +// helper class to buffer output for transparent rasterprimitives (filled areas +// and lines) until the end of processing. To ensure correct transparent +// visualisation, ZBuffers require to not set Z and to mix with the transparent +// color. If transparent rasterprimitives overlap, it gets necessary to +// paint transparent rasterprimitives from back to front to ensure that the +// mixing happens from back to front. For that purpose, transparent +// rasterprimitives are held in this class during the processing run, remember +// all data and will be rendered + +class RasterPrimitive3D +{ +private: + std::shared_ptr< drawinglayer::texture::GeoTexSvx > mpGeoTexSvx; + std::shared_ptr< drawinglayer::texture::GeoTexSvx > mpTransparenceGeoTexSvx; + drawinglayer::attribute::MaterialAttribute3D maMaterial; + basegfx::B3DPolyPolygon maPolyPolygon; + double mfCenterZ; + + bool mbModulate : 1; + bool mbFilter : 1; + bool mbSimpleTextureActive : 1; + bool mbIsLine : 1; + +public: + RasterPrimitive3D( + const std::shared_ptr< drawinglayer::texture::GeoTexSvx >& pGeoTexSvx, + const std::shared_ptr< drawinglayer::texture::GeoTexSvx >& pTransparenceGeoTexSvx, + const drawinglayer::attribute::MaterialAttribute3D& rMaterial, + const basegfx::B3DPolyPolygon& rPolyPolygon, + bool bModulate, + bool bFilter, + bool bSimpleTextureActive, + bool bIsLine) + : mpGeoTexSvx(pGeoTexSvx), + mpTransparenceGeoTexSvx(pTransparenceGeoTexSvx), + maMaterial(rMaterial), + maPolyPolygon(rPolyPolygon), + mfCenterZ(basegfx::utils::getRange(rPolyPolygon).getCenter().getZ()), + mbModulate(bModulate), + mbFilter(bFilter), + mbSimpleTextureActive(bSimpleTextureActive), + mbIsLine(bIsLine) + { + } + + bool operator<(const RasterPrimitive3D& rComp) const + { + return mfCenterZ < rComp.mfCenterZ; + } + + const std::shared_ptr< drawinglayer::texture::GeoTexSvx >& getGeoTexSvx() const { return mpGeoTexSvx; } + const std::shared_ptr< drawinglayer::texture::GeoTexSvx >& getTransparenceGeoTexSvx() const { return mpTransparenceGeoTexSvx; } + const drawinglayer::attribute::MaterialAttribute3D& getMaterial() const { return maMaterial; } + const basegfx::B3DPolyPolygon& getPolyPolygon() const { return maPolyPolygon; } + bool getModulate() const { return mbModulate; } + bool getFilter() const { return mbFilter; } + bool getSimpleTextureActive() const { return mbSimpleTextureActive; } + bool getIsLine() const { return mbIsLine; } +}; + +namespace drawinglayer::processor3d +{ + void ZBufferProcessor3D::rasterconvertB3DPolygon(const attribute::MaterialAttribute3D& rMaterial, const basegfx::B3DPolygon& rHairline) const + { + if(getTransparenceCounter()) + { + // transparent output; record for later sorting and painting from + // back to front + + maRasterPrimitive3Ds.push_back(RasterPrimitive3D( + getGeoTexSvx(), + getTransparenceGeoTexSvx(), + rMaterial, + basegfx::B3DPolyPolygon(rHairline), + getModulate(), + getFilter(), + getSimpleTextureActive(), + true)); + } + else + { + // do rasterconversion + mpZBufferRasterConverter3D->setCurrentMaterial(rMaterial); + + if(mnAntiAlialize > 1) + { + const bool bForceLineSnap(SvtOptionsDrawinglayer::IsAntiAliasing() && SvtOptionsDrawinglayer::IsSnapHorVerLinesToDiscrete()); + + if(bForceLineSnap) + { + basegfx::B3DHomMatrix aTransform; + basegfx::B3DPolygon aSnappedHairline(rHairline); + const double fScaleDown(1.0 / mnAntiAlialize); + const double fScaleUp(mnAntiAlialize); + + // take oversampling out + aTransform.scale(fScaleDown, fScaleDown, 1.0); + aSnappedHairline.transform(aTransform); + + // snap to integer + aSnappedHairline = basegfx::utils::snapPointsOfHorizontalOrVerticalEdges(aSnappedHairline); + + // add oversampling again + aTransform.identity(); + aTransform.scale(fScaleUp, fScaleUp, 1.0); + + aSnappedHairline.transform(aTransform); + + mpZBufferRasterConverter3D->rasterconvertB3DPolygon(aSnappedHairline, mnStartLine, mnStopLine, mnAntiAlialize); + } + else + { + mpZBufferRasterConverter3D->rasterconvertB3DPolygon(rHairline, mnStartLine, mnStopLine, mnAntiAlialize); + } + } + else + { + mpZBufferRasterConverter3D->rasterconvertB3DPolygon(rHairline, mnStartLine, mnStopLine, 1); + } + } + } + + void ZBufferProcessor3D::rasterconvertB3DPolyPolygon(const attribute::MaterialAttribute3D& rMaterial, const basegfx::B3DPolyPolygon& rFill) const + { + if(getTransparenceCounter()) + { + // transparent output; record for later sorting and painting from + // back to front + maRasterPrimitive3Ds.push_back(RasterPrimitive3D( + getGeoTexSvx(), + getTransparenceGeoTexSvx(), + rMaterial, + rFill, + getModulate(), + getFilter(), + getSimpleTextureActive(), + false)); + } + else + { + mpZBufferRasterConverter3D->setCurrentMaterial(rMaterial); + mpZBufferRasterConverter3D->rasterconvertB3DPolyPolygon(rFill, &maInvEyeToView, mnStartLine, mnStopLine); + } + } + + ZBufferProcessor3D::ZBufferProcessor3D( + const geometry::ViewInformation3D& rViewInformation3D, + const attribute::SdrSceneAttribute& rSdrSceneAttribute, + const attribute::SdrLightingAttribute& rSdrLightingAttribute, + const basegfx::B2DRange& rVisiblePart, + sal_uInt16 nAntiAlialize, + double fFullViewSizeX, + double fFullViewSizeY, + basegfx::BZPixelRaster& rBZPixelRaster, + sal_uInt32 nStartLine, + sal_uInt32 nStopLine) + : DefaultProcessor3D(rViewInformation3D, rSdrSceneAttribute, rSdrLightingAttribute), + mnAntiAlialize(nAntiAlialize), + mnStartLine(nStartLine), + mnStopLine(nStopLine) + { + // create DeviceToView for Z-Buffer renderer since Z is handled + // different from standard 3D transformations (Z is mirrored). Also + // the transformation includes the step from unit device coordinates + // to discrete units ([-1.0 .. 1.0] -> [minDiscrete .. maxDiscrete] + basegfx::B3DHomMatrix aDeviceToView; + + { + // step one: + // + // bring from [-1.0 .. 1.0] in X,Y and Z to [0.0 .. 1.0]. Also + // necessary to + // - flip Y due to screen orientation + // - flip Z due to Z-Buffer orientation from back to front + + aDeviceToView.scale(0.5, -0.5, -0.5); + aDeviceToView.translate(0.5, 0.5, 0.5); + } + + { + // step two: + // + // bring from [0.0 .. 1.0] in X,Y and Z to view coordinates + // + // #i102611# + // also: scale Z to [1.5 .. 65534.5]. Normally, a range of [0.0 .. 65535.0] + // could be used, but a 'unused' value is needed, so '0' is used what reduces + // the range to [1.0 .. 65535.0]. It has also shown that small numerical errors + // (smaller as basegfx::fTools::mfSmallValue, which is 0.000000001) happen. + // Instead of checking those by basegfx::fTools methods which would cost + // runtime, just add another 0.5 tolerance to the start and end of the Z-Buffer + // range, thus resulting in [1.5 .. 65534.5] + const double fMaxZDepth(65533.0); + aDeviceToView.translate(-rVisiblePart.getMinX(), -rVisiblePart.getMinY(), 0.0); + + if(mnAntiAlialize) + aDeviceToView.scale(fFullViewSizeX * mnAntiAlialize, fFullViewSizeY * mnAntiAlialize, fMaxZDepth); + else + aDeviceToView.scale(fFullViewSizeX, fFullViewSizeY, fMaxZDepth); + + aDeviceToView.translate(0.0, 0.0, 1.5); + } + + // update local ViewInformation3D with own DeviceToView + const geometry::ViewInformation3D aNewViewInformation3D( + getViewInformation3D().getObjectTransformation(), + getViewInformation3D().getOrientation(), + getViewInformation3D().getProjection(), + aDeviceToView, + getViewInformation3D().getViewTime(), + getViewInformation3D().getExtendedInformationSequence()); + updateViewInformation(aNewViewInformation3D); + + // prepare inverse EyeToView transformation. This can be done in constructor + // since changes in object transformations when processing TransformPrimitive3Ds + // do not influence this prepared partial transformation + maInvEyeToView = getViewInformation3D().getDeviceToView() * getViewInformation3D().getProjection(); + maInvEyeToView.invert(); + + // prepare maRasterRange + maRasterRange.reset(); + maRasterRange.expand(basegfx::B2DPoint(0.0, nStartLine)); + maRasterRange.expand(basegfx::B2DPoint(rBZPixelRaster.getWidth(), nStopLine)); + + // create the raster converter + mpZBufferRasterConverter3D.reset( new ZBufferRasterConverter3D(rBZPixelRaster, *this) ); + } + + ZBufferProcessor3D::~ZBufferProcessor3D() + { + mpZBufferRasterConverter3D.reset(); + + if(!maRasterPrimitive3Ds.empty()) + { + OSL_FAIL("ZBufferProcessor3D: destructed, but there are unrendered transparent geometries. Use ZBufferProcessor3D::finish() to render these (!)"); + } + } + + void ZBufferProcessor3D::finish() + { + if(maRasterPrimitive3Ds.empty()) + return; + + // there are transparent rasterprimitives + const sal_uInt32 nSize(maRasterPrimitive3Ds.size()); + + if(nSize > 1) + { + // sort them from back to front + std::sort(maRasterPrimitive3Ds.begin(), maRasterPrimitive3Ds.end()); + } + + for(sal_uInt32 a(0); a < nSize; a++) + { + // paint each one by setting the remembered data and calling + // the render method + const RasterPrimitive3D& rCandidate = maRasterPrimitive3Ds[a]; + + mpGeoTexSvx = rCandidate.getGeoTexSvx(); + mpTransparenceGeoTexSvx = rCandidate.getTransparenceGeoTexSvx(); + mbModulate = rCandidate.getModulate(); + mbFilter = rCandidate.getFilter(); + mbSimpleTextureActive = rCandidate.getSimpleTextureActive(); + + if(rCandidate.getIsLine()) + { + rasterconvertB3DPolygon( + rCandidate.getMaterial(), + rCandidate.getPolyPolygon().getB3DPolygon(0)); + } + else + { + rasterconvertB3DPolyPolygon( + rCandidate.getMaterial(), + rCandidate.getPolyPolygon()); + } + } + + // delete them to signal the destructor that all is done and + // to allow asserting there + maRasterPrimitive3Ds.clear(); + } + +} // end of namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |