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Diffstat (limited to 'drawinglayer/source/processor2d/SDPRProcessor2dTools.cxx')
| -rw-r--r-- | drawinglayer/source/processor2d/SDPRProcessor2dTools.cxx | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/drawinglayer/source/processor2d/SDPRProcessor2dTools.cxx b/drawinglayer/source/processor2d/SDPRProcessor2dTools.cxx new file mode 100644 index 0000000000..3d738cd09c --- /dev/null +++ b/drawinglayer/source/processor2d/SDPRProcessor2dTools.cxx @@ -0,0 +1,300 @@ +/* -*- 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 <drawinglayer/processor2d/SDPRProcessor2dTools.hxx> +#include <drawinglayer/primitive2d/fillgraphicprimitive2d.hxx> +#include <drawinglayer/geometry/viewinformation2d.hxx> +#include <vcl/bitmapex.hxx> +#include <vcl/graph.hxx> +#include <basegfx/range/b2drange.hxx> + +#ifdef DBG_UTIL +#include <tools/stream.hxx> +#include <vcl/filter/PngImageWriter.hxx> +#endif + +namespace drawinglayer::processor2d +{ +void setOffsetXYCreatedBitmap( + drawinglayer::primitive2d::FillGraphicPrimitive2D& rFillGraphicPrimitive2D, + const BitmapEx& rBitmap) +{ + rFillGraphicPrimitive2D.impSetOffsetXYCreatedBitmap(rBitmap); +} + +void takeCareOfOffsetXY( + const drawinglayer::primitive2d::FillGraphicPrimitive2D& rFillGraphicPrimitive2D, + BitmapEx& rTarget, basegfx::B2DRange& rFillUnitRange) +{ + const attribute::FillGraphicAttribute& rFillGraphicAttribute( + rFillGraphicPrimitive2D.getFillGraphic()); + const bool bOffsetXIsUsed(rFillGraphicAttribute.getOffsetX() > 0.0 + && rFillGraphicAttribute.getOffsetX() < 1.0); + const bool bOffsetYIsUsed(rFillGraphicAttribute.getOffsetY() > 0.0 + && rFillGraphicAttribute.getOffsetY() < 1.0); + + if (bOffsetXIsUsed) + { + if (rFillGraphicPrimitive2D.getOffsetXYCreatedBitmap().IsEmpty()) + { + const Size& rSize(rTarget.GetSizePixel()); + const tools::Long w(rSize.Width()); + const tools::Long a(basegfx::fround(w * (1.0 - rFillGraphicAttribute.getOffsetX()))); + + if (0 != a && w != a) + { + const tools::Long h(rSize.Height()); + const tools::Long b(w - a); + BitmapEx aTarget(Size(w, h * 2), rTarget.getPixelFormat()); + + aTarget.SetPrefSize( + Size(rTarget.GetPrefSize().Width(), rTarget.GetPrefSize().Height() * 2)); + const tools::Rectangle aSrcDst(Point(), rSize); + aTarget.CopyPixel(aSrcDst, // Dst + aSrcDst, // Src + rTarget); + const Size aSizeA(b, h); + aTarget.CopyPixel(tools::Rectangle(Point(0, h), aSizeA), // Dst + tools::Rectangle(Point(a, 0), aSizeA), // Src + rTarget); + const Size aSizeB(a, h); + aTarget.CopyPixel(tools::Rectangle(Point(b, h), aSizeB), // Dst + tools::Rectangle(Point(), aSizeB), // Src + rTarget); + + setOffsetXYCreatedBitmap( + const_cast<drawinglayer::primitive2d::FillGraphicPrimitive2D&>( + rFillGraphicPrimitive2D), + aTarget); + } + } + + if (!rFillGraphicPrimitive2D.getOffsetXYCreatedBitmap().IsEmpty()) + { + rTarget = rFillGraphicPrimitive2D.getOffsetXYCreatedBitmap(); + rFillUnitRange.expand(basegfx::B2DPoint( + rFillUnitRange.getMinX(), rFillUnitRange.getMaxY() + rFillUnitRange.getHeight())); + } + } + else if (bOffsetYIsUsed) + { + if (rFillGraphicPrimitive2D.getOffsetXYCreatedBitmap().IsEmpty()) + { + const Size& rSize(rTarget.GetSizePixel()); + const tools::Long h(rSize.Height()); + const tools::Long a(basegfx::fround(h * (1.0 - rFillGraphicAttribute.getOffsetY()))); + + if (0 != a && h != a) + { + const tools::Long w(rSize.Width()); + const tools::Long b(h - a); + BitmapEx aTarget(Size(w * 2, h), rTarget.getPixelFormat()); + + aTarget.SetPrefSize( + Size(rTarget.GetPrefSize().Width() * 2, rTarget.GetPrefSize().Height())); + const tools::Rectangle aSrcDst(Point(), rSize); + aTarget.CopyPixel(aSrcDst, // Dst + aSrcDst, // Src + rTarget); + const Size aSizeA(w, b); + aTarget.CopyPixel(tools::Rectangle(Point(w, 0), aSizeA), // Dst + tools::Rectangle(Point(0, a), aSizeA), // Src + rTarget); + const Size aSizeB(w, a); + aTarget.CopyPixel(tools::Rectangle(Point(w, b), aSizeB), // Dst + tools::Rectangle(Point(), aSizeB), // Src + rTarget); + + setOffsetXYCreatedBitmap( + const_cast<drawinglayer::primitive2d::FillGraphicPrimitive2D&>( + rFillGraphicPrimitive2D), + aTarget); + } + } + + if (!rFillGraphicPrimitive2D.getOffsetXYCreatedBitmap().IsEmpty()) + { + rTarget = rFillGraphicPrimitive2D.getOffsetXYCreatedBitmap(); + rFillUnitRange.expand(basegfx::B2DPoint( + rFillUnitRange.getMaxX() + rFillUnitRange.getWidth(), rFillUnitRange.getMinY())); + } + } +} + +bool prepareBitmapForDirectRender( + const drawinglayer::primitive2d::FillGraphicPrimitive2D& rFillGraphicPrimitive2D, + const drawinglayer::geometry::ViewInformation2D& rViewInformation2D, BitmapEx& rTarget, + basegfx::B2DRange& rFillUnitRange, double fBigDiscreteArea) +{ + const attribute::FillGraphicAttribute& rFillGraphicAttribute( + rFillGraphicPrimitive2D.getFillGraphic()); + const Graphic& rGraphic(rFillGraphicAttribute.getGraphic()); + + if (rFillGraphicAttribute.isDefault() || rGraphic.IsNone()) + { + // default attributes or GraphicType::NONE, so no fill .-> done + return false; + } + + if (!rFillGraphicAttribute.getTiling()) + { + // If no tiling used, the Graphic will need to be painted just once. This + // is perfectly done using the decomposition, so use it. + // What we want to do here is to optimize tiled paint, for two reasons: + // (a) speed: draw one tile, repeat -> obvious + // (b) correctness: not so obvious, but since in AAed paint the same edge + // of touching polygons both AAed do *not* sum up, but get blended by + // multiplication (0.5 * 0.5 -> 0.25) the connection will stay visible, + // not only with filled polygons, but also with bitmaps + // Signal that paint is needed + return true; + } + + if (rFillUnitRange.isEmpty()) + { + // no fill range definition, no fill, done + return false; + } + + const basegfx::B2DHomMatrix aLocalTransform(rViewInformation2D.getObjectToViewTransformation() + * rFillGraphicPrimitive2D.getTransformation()); + const basegfx::B2DRange& rDiscreteViewPort(rViewInformation2D.getDiscreteViewport()); + + if (!rDiscreteViewPort.isEmpty()) + { + // calculate discrete covered pixel area + basegfx::B2DRange aDiscreteRange(basegfx::B2DRange::getUnitB2DRange()); + aDiscreteRange.transform(aLocalTransform); + + if (!rDiscreteViewPort.overlaps(rDiscreteViewPort)) + { + // we have a Viewport and visible range of geometry is outside -> not visible, done + return false; + } + } + + if (GraphicType::Bitmap == rGraphic.GetType() && rGraphic.IsAnimated()) + { + // Need to prepare specialized AnimatedGraphicPrimitive2D, + // cannot handle here. Signal that paint is needed + return true; + } + + if (GraphicType::Bitmap == rGraphic.GetType() && !rGraphic.getVectorGraphicData()) + { + // bitmap graphic, always handle locally, so get bitmap data independent + // if it'sie or it's discrete display size + rTarget = rGraphic.GetBitmapEx(); + } + else + { + // Vector Graphic Data fill, including metafile: + // We can know about discrete pixel size here, calculate and use it. + // To do so, using Vectors is sufficient to get the lengths. It is + // not necessary to transform the whole target coordinate system. + const basegfx::B2DVector aDiscreteXAxis( + aLocalTransform + * basegfx::B2DVector(rFillUnitRange.getMaxX() - rFillUnitRange.getMinX(), 0.0)); + const basegfx::B2DVector aDiscreteYAxis( + aLocalTransform + * basegfx::B2DVector(0.0, rFillUnitRange.getMaxY() - rFillUnitRange.getMinY())); + + // get and ensure minimal size + const double fDiscreteWidth(std::max(1.0, aDiscreteXAxis.getLength())); + const double fDiscreteHeight(std::max(1.0, aDiscreteYAxis.getLength())); + + // compare with a big visualization size in discrete pixels + const double fTargetDiscreteArea(fDiscreteWidth * fDiscreteHeight); + + if (fTargetDiscreteArea > fBigDiscreteArea) + { + // When the vector data is visualized big it is better to not handle here + // but use decomposition fallback which then will visualize the vector data + // directly -> better quality, acceptable number of tile repeat(s) + // signal that paint is needed + return true; + } + else + { + // If visualized small, the amount of repeated fills gets expensive, so + // in that case use a Bitmap and the Brush technique below. + // The Bitmap may be created here exactly for the needed target size + // (using local D2DBitmapPixelProcessor2D and the vector data), + // but since we have a HW renderer and re-use of system-dependent data + // at BitmapEx is possible, just get the default fallback Bitmap from the + // vector data to continue. Trust the existing converters for now to + // do something with good quality. + rTarget = rGraphic.GetBitmapEx(); + } + } + + if (rTarget.IsEmpty() || rTarget.GetSizePixel().IsEmpty()) + { + // no pixel data, done + return false; + } + + // react if OffsetX/OffsetY of the FillGraphicAttribute is used + takeCareOfOffsetXY(rFillGraphicPrimitive2D, rTarget, rFillUnitRange); + +#ifdef DBG_UTIL + // allow to check bitmap data, e.g. control OffsetX/OffsetY stuff + static bool bDoSaveForVisualControl(false); // loplugin:constvars:ignore + if (bDoSaveForVisualControl) + { + static const OUString sDumpPath( + OUString::createFromAscii(std::getenv("VCL_DUMP_BMP_PATH"))); + if (!sDumpPath.isEmpty()) + { + SvFileStream aNew(sDumpPath + "test_getreplacement.png", + StreamMode::WRITE | StreamMode::TRUNC); + vcl::PngImageWriter aPNGWriter(aNew); + aPNGWriter.write(rTarget); + } + } +#endif + + // signal to render it + return true; +} + +void calculateDiscreteVisibleRange( + basegfx::B2DRange& rDiscreteVisibleRange, const basegfx::B2DRange& rContentRange, + const drawinglayer::geometry::ViewInformation2D& rViewInformation2D) +{ + if (rContentRange.isEmpty()) + { + // no content, done + rDiscreteVisibleRange.reset(); + return; + } + + basegfx::B2DRange aDiscreteRange(rContentRange); + aDiscreteRange.transform(rViewInformation2D.getObjectToViewTransformation()); + const basegfx::B2DRange& rDiscreteViewPort(rViewInformation2D.getDiscreteViewport()); + rDiscreteVisibleRange = aDiscreteRange; + + if (!rDiscreteViewPort.isEmpty()) + { + rDiscreteVisibleRange.intersect(rDiscreteViewPort); + } +} +} // end of namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |