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-rw-r--r--include/basegfx/raster/bzpixelraster.hxx91
-rw-r--r--include/basegfx/raster/rasterconvert3d.hxx421
2 files changed, 512 insertions, 0 deletions
diff --git a/include/basegfx/raster/bzpixelraster.hxx b/include/basegfx/raster/bzpixelraster.hxx
new file mode 100644
index 000000000..52ebc3c6e
--- /dev/null
+++ b/include/basegfx/raster/bzpixelraster.hxx
@@ -0,0 +1,91 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <basegfx/pixel/bpixel.hxx>
+#include <sal/types.h>
+#include <memory>
+#include <cassert>
+#include <string.h>
+
+namespace basegfx
+{
+ class BZPixelRaster
+ {
+ private:
+ BZPixelRaster(const BZPixelRaster&) = delete;
+ BZPixelRaster& operator=(const BZPixelRaster&) = delete;
+
+ sal_uInt32 mnWidth;
+ sal_uInt32 mnHeight;
+ sal_uInt32 mnCount;
+ std::unique_ptr<BPixel[]> mpContent;
+ std::unique_ptr<sal_uInt16[]> mpZBuffer;
+
+ public:
+ // constructor/destructor
+ BZPixelRaster(sal_uInt32 nWidth, sal_uInt32 nHeight)
+ : mnWidth(nWidth),
+ mnHeight(nHeight),
+ mnCount(nWidth * nHeight),
+ mpContent(new BPixel[mnCount]),
+ mpZBuffer(new sal_uInt16[mnCount])
+ {
+ memset(mpZBuffer.get(), 0, sizeof(sal_uInt16) * mnCount);
+ }
+
+ // coordinate calcs between X/Y and span
+ sal_uInt32 getIndexFromXY(sal_uInt32 nX, sal_uInt32 nY) const { return (nX + (nY * mnWidth)); }
+
+ // data access read
+ sal_uInt32 getWidth() const { return mnWidth; }
+ sal_uInt32 getHeight() const { return mnHeight; }
+
+ // data access read only
+ const BPixel& getBPixel(sal_uInt32 nIndex) const
+ {
+ assert(nIndex < mnCount && "Access out of range");
+ return mpContent[nIndex];
+ }
+
+ // data access read/write
+ BPixel& getBPixel(sal_uInt32 nIndex)
+ {
+ assert(nIndex < mnCount && "Access out of range");
+ return mpContent[nIndex];
+ }
+
+ // data access read only
+ const sal_uInt16& getZ(sal_uInt32 nIndex) const
+ {
+ assert(nIndex < mnCount && "Access out of range");
+ return mpZBuffer[nIndex];
+ }
+
+ // data access read/write
+ sal_uInt16& getZ(sal_uInt32 nIndex)
+ {
+ assert(nIndex < mnCount && "Access out of range");
+ return mpZBuffer[nIndex];
+ }
+ };
+} // end of namespace basegfx
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/basegfx/raster/rasterconvert3d.hxx b/include/basegfx/raster/rasterconvert3d.hxx
new file mode 100644
index 000000000..83f753e31
--- /dev/null
+++ b/include/basegfx/raster/rasterconvert3d.hxx
@@ -0,0 +1,421 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <config_options.h>
+#include <sal/types.h>
+#include <vector>
+
+#include <osl/diagnose.h>
+
+#include <basegfx/color/bcolor.hxx>
+#include <basegfx/vector/b3dvector.hxx>
+#include <basegfx/point/b2dpoint.hxx>
+#include <basegfx/basegfxdllapi.h>
+
+namespace basegfx
+{
+ class B3DPolygon;
+ class B3DPolyPolygon;
+}
+
+// interpolators for double precision
+
+namespace basegfx
+{
+ class ip_single
+ {
+ private:
+ double mfVal;
+ double mfInc;
+
+ public:
+ ip_single()
+ : mfVal(0.0),
+ mfInc(0.0)
+ {}
+
+ ip_single(double fVal, double fInc)
+ : mfVal(fVal),
+ mfInc(fInc)
+ {}
+
+ double getVal() const { return mfVal; }
+ double getInc() const { return mfInc; }
+
+ void increment(double fStep) { mfVal += fStep * mfInc; }
+ };
+
+ class ip_double
+ {
+ private:
+ ip_single maX;
+ ip_single maY;
+
+ public:
+ ip_double()
+ {}
+
+ ip_double(double fXVal, double fXInc, double fYVal, double fYInc)
+ : maX(fXVal, fXInc),
+ maY(fYVal, fYInc)
+ {}
+
+ const ip_single& getX() const { return maX; }
+ const ip_single& getY() const { return maY; }
+
+ void increment(double fStep) { maX.increment(fStep); maY.increment(fStep); }
+ };
+
+ class ip_triple
+ {
+ private:
+ ip_single maX;
+ ip_single maY;
+ ip_single maZ;
+
+ public:
+ ip_triple()
+ {}
+
+ ip_triple(double fXVal, double fXInc, double fYVal, double fYInc, double fZVal, double fZInc)
+ : maX(fXVal, fXInc),
+ maY(fYVal, fYInc),
+ maZ(fZVal, fZInc)
+ {}
+
+ const ip_single& getX() const { return maX; }
+ const ip_single& getY() const { return maY; }
+ const ip_single& getZ() const { return maZ; }
+
+ void increment(double fStep) { maX.increment(fStep); maY.increment(fStep); maZ.increment(fStep); }
+ };
+
+ // InterpolatorProvider3D to have a common source for allocating interpolators
+ // which may then be addressed using the index to the vectors
+
+ #define SCANLINE_EMPTY_INDEX (0xffffffff)
+
+ class InterpolatorProvider3D
+ {
+ private:
+ ::std::vector< ip_triple > maColorInterpolators;
+ ::std::vector< ip_triple > maNormalInterpolators;
+ ::std::vector< ip_double > maTextureInterpolators;
+ ::std::vector< ip_triple > maInverseTextureInterpolators;
+
+ protected:
+ sal_uInt32 addColorInterpolator(const BColor& rA, const BColor& rB, double fInvYDelta)
+ {
+ double aDeltaRed(rB.getRed() - rA.getRed());
+
+ if(fTools::equalZero(aDeltaRed))
+ {
+ aDeltaRed = 0.0;
+ }
+ else
+ {
+ aDeltaRed *= fInvYDelta;
+ }
+
+ double aDeltaGreen(rB.getGreen() - rA.getGreen());
+
+ if(fTools::equalZero(aDeltaGreen))
+ {
+ aDeltaGreen = 0.0;
+ }
+ else
+ {
+ aDeltaGreen *= fInvYDelta;
+ }
+
+ double aDeltaBlue(rB.getBlue() - rA.getBlue());
+
+ if(fTools::equalZero(aDeltaBlue))
+ {
+ aDeltaBlue = 0.0;
+ }
+ else
+ {
+ aDeltaBlue *= fInvYDelta;
+ }
+
+ maColorInterpolators.push_back(
+ ip_triple(
+ rA.getRed(), aDeltaRed,
+ rA.getGreen(), aDeltaGreen,
+ rA.getBlue(), aDeltaBlue));
+
+ return (maColorInterpolators.size() - 1);
+ }
+
+ sal_uInt32 addNormalInterpolator(const B3DVector& rA, const B3DVector& rB, double fInvYDelta)
+ {
+ double aDeltaX(rB.getX() - rA.getX());
+
+ if(fTools::equalZero(aDeltaX))
+ {
+ aDeltaX = 0.0;
+ }
+ else
+ {
+ aDeltaX *= fInvYDelta;
+ }
+
+ double aDeltaY(rB.getY() - rA.getY());
+
+ if(fTools::equalZero(aDeltaY))
+ {
+ aDeltaY = 0.0;
+ }
+ else
+ {
+ aDeltaY *= fInvYDelta;
+ }
+
+ double aDeltaZ(rB.getZ() - rA.getZ());
+
+ if(fTools::equalZero(aDeltaZ))
+ {
+ aDeltaZ = 0.0;
+ }
+ else
+ {
+ aDeltaZ *= fInvYDelta;
+ }
+
+ maNormalInterpolators.push_back(
+ ip_triple(
+ rA.getX(), aDeltaX,
+ rA.getY(), aDeltaY,
+ rA.getZ(), aDeltaZ));
+
+ return (maNormalInterpolators.size() - 1);
+ }
+
+ sal_uInt32 addTextureInterpolator(const B2DPoint& rA, const B2DPoint& rB, double fInvYDelta)
+ {
+ double aDeltaX(rB.getX() - rA.getX());
+
+ if(fTools::equalZero(aDeltaX))
+ {
+ aDeltaX = 0.0;
+ }
+ else
+ {
+ aDeltaX *= fInvYDelta;
+ }
+
+ double aDeltaY(rB.getY() - rA.getY());
+
+ if(fTools::equalZero(aDeltaY))
+ {
+ aDeltaY = 0.0;
+ }
+ else
+ {
+ aDeltaY *= fInvYDelta;
+ }
+
+ maTextureInterpolators.push_back(
+ ip_double(
+ rA.getX(), aDeltaX,
+ rA.getY(), aDeltaY));
+
+ return (maTextureInterpolators.size() - 1);
+ }
+
+ sal_uInt32 addInverseTextureInterpolator(const B2DPoint& rA, const B2DPoint& rB, double fZEyeA, double fZEyeB, double fInvYDelta)
+ {
+ double fZDelta(fZEyeB - fZEyeA);
+ const double fInvZEyeA(fTools::equalZero(fZEyeA) ? fZEyeA : 1.0 / fZEyeA);
+ double fInvZEyeB(fInvZEyeA);
+
+ if(fTools::equalZero(fZDelta))
+ {
+ fZDelta = 0.0;
+ }
+ else
+ {
+ fInvZEyeB = fTools::equalZero(fZEyeB) ? fZEyeB : 1.0 / fZEyeB;
+ fZDelta = (fInvZEyeB - fInvZEyeA) * fInvYDelta;
+ }
+
+ const B2DPoint aInvA(rA * fInvZEyeA);
+ const B2DPoint aInvB(rB * fInvZEyeB);
+ const double aDeltaX((aInvB.getX() - aInvA.getX()) * fInvYDelta);
+ const double aDeltaY((aInvB.getY() - aInvA.getY()) * fInvYDelta);
+
+ maInverseTextureInterpolators.push_back(
+ ip_triple(
+ aInvA.getX(), aDeltaX,
+ aInvA.getY(), aDeltaY,
+ fInvZEyeA, fZDelta));
+
+ return (maInverseTextureInterpolators.size() - 1);
+ }
+
+ void reset()
+ {
+ maColorInterpolators.clear();
+ maNormalInterpolators.clear();
+ maTextureInterpolators.clear();
+ maInverseTextureInterpolators.clear();
+ }
+
+ public:
+ InterpolatorProvider3D() {}
+
+ ::std::vector< ip_triple >& getColorInterpolators() { return maColorInterpolators; }
+ ::std::vector< ip_triple >& getNormalInterpolators() { return maNormalInterpolators; }
+ ::std::vector< ip_double >& getTextureInterpolators() { return maTextureInterpolators; }
+ ::std::vector< ip_triple >& getInverseTextureInterpolators() { return maInverseTextureInterpolators; }
+ };
+
+ // RasterConversionLineEntry3D for Rasterconversion of 3D PolyPolygons
+
+ class RasterConversionLineEntry3D
+ {
+ private:
+ ip_single maX;
+ ip_single maZ;
+ sal_Int32 mnY;
+ sal_uInt32 mnCount;
+
+ sal_uInt32 mnColorIndex;
+ sal_uInt32 mnNormalIndex;
+ sal_uInt32 mnTextureIndex;
+ sal_uInt32 mnInverseTextureIndex;
+
+ public:
+ RasterConversionLineEntry3D(const double& rfX, const double& rfDeltaX, const double& rfZ, const double& rfDeltaZ, sal_Int32 nY, sal_uInt32 nCount)
+ : maX(rfX, rfDeltaX),
+ maZ(rfZ, rfDeltaZ),
+ mnY(nY),
+ mnCount(nCount),
+ mnColorIndex(SCANLINE_EMPTY_INDEX),
+ mnNormalIndex(SCANLINE_EMPTY_INDEX),
+ mnTextureIndex(SCANLINE_EMPTY_INDEX),
+ mnInverseTextureIndex(SCANLINE_EMPTY_INDEX)
+ {}
+
+ void setColorIndex(sal_uInt32 nIndex) { mnColorIndex = nIndex; }
+ void setNormalIndex(sal_uInt32 nIndex) { mnNormalIndex = nIndex; }
+ void setTextureIndex(sal_uInt32 nIndex) { mnTextureIndex = nIndex; }
+ void setInverseTextureIndex(sal_uInt32 nIndex) { mnInverseTextureIndex = nIndex; }
+
+ bool operator<(const RasterConversionLineEntry3D& rComp) const
+ {
+ if(mnY == rComp.mnY)
+ {
+ return maX.getVal() < rComp.maX.getVal();
+ }
+
+ return mnY < rComp.mnY;
+ }
+
+ bool decrementRasterConversionLineEntry3D(sal_uInt32 nStep)
+ {
+ if(nStep >= mnCount)
+ {
+ return false;
+ }
+ else
+ {
+ mnCount -= nStep;
+ return true;
+ }
+ }
+
+ void incrementRasterConversionLineEntry3D(sal_uInt32 nStep, InterpolatorProvider3D& rProvider)
+ {
+ const double fStep(static_cast<double>(nStep));
+ maX.increment(fStep);
+ maZ.increment(fStep);
+ mnY += nStep;
+
+ if(SCANLINE_EMPTY_INDEX != mnColorIndex)
+ {
+ rProvider.getColorInterpolators()[mnColorIndex].increment(fStep);
+ }
+
+ if(SCANLINE_EMPTY_INDEX != mnNormalIndex)
+ {
+ rProvider.getNormalInterpolators()[mnNormalIndex].increment(fStep);
+ }
+
+ if(SCANLINE_EMPTY_INDEX != mnTextureIndex)
+ {
+ rProvider.getTextureInterpolators()[mnTextureIndex].increment(fStep);
+ }
+
+ if(SCANLINE_EMPTY_INDEX != mnInverseTextureIndex)
+ {
+ rProvider.getInverseTextureInterpolators()[mnInverseTextureIndex].increment(fStep);
+ }
+ }
+
+ // data read access
+ const ip_single& getX() const { return maX; }
+ sal_Int32 getY() const { return mnY; }
+ const ip_single& getZ() const { return maZ; }
+ sal_uInt32 getColorIndex() const { return mnColorIndex; }
+ sal_uInt32 getNormalIndex() const { return mnNormalIndex; }
+ sal_uInt32 getTextureIndex() const { return mnTextureIndex; }
+ sal_uInt32 getInverseTextureIndex() const { return mnInverseTextureIndex; }
+ };
+
+ // the basic RasterConverter itself. Only one method needs to be overridden. The
+ // class itself is pure virtual
+
+ class UNLESS_MERGELIBS(BASEGFX_DLLPUBLIC) RasterConverter3D : public InterpolatorProvider3D
+ {
+ private:
+ // the line entries for an area conversion run
+ ::std::vector< RasterConversionLineEntry3D > maLineEntries;
+
+ struct lineComparator
+ {
+ bool operator()(const RasterConversionLineEntry3D* pA, const RasterConversionLineEntry3D* pB)
+ {
+ OSL_ENSURE(pA && pB, "lineComparator: empty pointer (!)");
+ return pA->getX().getVal() < pB->getX().getVal();
+ }
+ };
+
+ SAL_DLLPRIVATE void addArea(const B3DPolygon& rFill, const B3DHomMatrix* pViewToEye);
+ SAL_DLLPRIVATE void addArea(const B3DPolyPolygon& rFill, const B3DHomMatrix* pViewToEye);
+ SAL_DLLPRIVATE void addEdge(const B3DPolygon& rFill, sal_uInt32 a, sal_uInt32 b, const B3DHomMatrix* pViewToEye);
+
+ SAL_DLLPRIVATE void rasterconvertB3DArea(sal_Int32 nStartLine, sal_Int32 nStopLine);
+ SAL_DLLPRIVATE void rasterconvertB3DEdge(const B3DPolygon& rLine, sal_uInt32 nA, sal_uInt32 nB, sal_Int32 nStartLine, sal_Int32 nStopLine, sal_uInt16 nLineWidth);
+
+ virtual void processLineSpan(const RasterConversionLineEntry3D& rA, const RasterConversionLineEntry3D& rB, sal_Int32 nLine, sal_uInt32 nSpanCount) = 0;
+
+ public:
+ RasterConverter3D();
+ virtual ~RasterConverter3D();
+
+ void rasterconvertB3DPolyPolygon(const B3DPolyPolygon& rFill, const B3DHomMatrix* pViewToEye, sal_Int32 nStartLine, sal_Int32 nStopLine);
+ void rasterconvertB3DPolygon(const B3DPolygon& rLine, sal_Int32 nStartLine, sal_Int32 nStopLine, sal_uInt16 nLineWidth);
+ };
+} // end of namespace basegfx
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-14 23:10:11 +0000