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diff --git a/vcl/headless/SvpGraphicsBackend.cxx b/vcl/headless/SvpGraphicsBackend.cxx
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+++ b/vcl/headless/SvpGraphicsBackend.cxx
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+/* -*- 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 <headless/SvpGraphicsBackend.hxx>
+
+#include <sal/log.hxx>
+#include <basegfx/matrix/b2dhommatrixtools.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <vcl/BitmapTools.hxx>
+#include <headless/BitmapHelper.hxx>
+
+SvpGraphicsBackend::SvpGraphicsBackend(CairoCommon& rCairoCommon)
+ : m_rCairoCommon(rCairoCommon)
+{
+}
+
+void SvpGraphicsBackend::Init() {}
+
+void SvpGraphicsBackend::freeResources() {}
+
+bool SvpGraphicsBackend::setClipRegion(const vcl::Region& i_rClip)
+{
+ m_rCairoCommon.m_aClipRegion = i_rClip;
+ return true;
+}
+
+void SvpGraphicsBackend::ResetClipRegion() { m_rCairoCommon.m_aClipRegion.SetNull(); }
+
+sal_uInt16 SvpGraphicsBackend::GetBitCount() const
+{
+ if (cairo_surface_get_content(m_rCairoCommon.m_pSurface) != CAIRO_CONTENT_COLOR_ALPHA)
+ return 1;
+ return 32;
+}
+
+tools::Long SvpGraphicsBackend::GetGraphicsWidth() const
+{
+ return m_rCairoCommon.m_pSurface ? m_rCairoCommon.m_aFrameSize.getX() : 0;
+}
+
+void SvpGraphicsBackend::SetLineColor() { m_rCairoCommon.m_aLineColor = SALCOLOR_NONE; }
+
+void SvpGraphicsBackend::SetLineColor(Color nColor) { m_rCairoCommon.m_aLineColor = nColor; }
+
+void SvpGraphicsBackend::SetFillColor() { m_rCairoCommon.m_aFillColor = SALCOLOR_NONE; }
+
+void SvpGraphicsBackend::SetFillColor(Color nColor) { m_rCairoCommon.m_aFillColor = nColor; }
+
+void SvpGraphicsBackend::SetXORMode(bool bSet, bool /*bInvertOnly*/)
+{
+ m_rCairoCommon.m_ePaintMode = bSet ? PaintMode::Xor : PaintMode::Over;
+}
+
+void SvpGraphicsBackend::SetROPLineColor(SalROPColor nROPColor)
+{
+ switch (nROPColor)
+ {
+ case SalROPColor::N0:
+ m_rCairoCommon.m_aLineColor = Color(0, 0, 0);
+ break;
+ case SalROPColor::N1:
+ m_rCairoCommon.m_aLineColor = Color(0xff, 0xff, 0xff);
+ break;
+ case SalROPColor::Invert:
+ m_rCairoCommon.m_aLineColor = Color(0xff, 0xff, 0xff);
+ break;
+ }
+}
+
+void SvpGraphicsBackend::SetROPFillColor(SalROPColor nROPColor)
+{
+ switch (nROPColor)
+ {
+ case SalROPColor::N0:
+ m_rCairoCommon.m_aFillColor = Color(0, 0, 0);
+ break;
+ case SalROPColor::N1:
+ m_rCairoCommon.m_aFillColor = Color(0xff, 0xff, 0xff);
+ break;
+ case SalROPColor::Invert:
+ m_rCairoCommon.m_aFillColor = Color(0xff, 0xff, 0xff);
+ break;
+ }
+}
+
+void SvpGraphicsBackend::drawPixel(tools::Long nX, tools::Long nY)
+{
+ if (m_rCairoCommon.m_aLineColor != SALCOLOR_NONE)
+ {
+ drawPixel(nX, nY, m_rCairoCommon.m_aLineColor);
+ }
+}
+
+void SvpGraphicsBackend::drawPixel(tools::Long nX, tools::Long nY, Color aColor)
+{
+ cairo_t* cr = m_rCairoCommon.getCairoContext(true, getAntiAlias());
+ m_rCairoCommon.clipRegion(cr);
+
+ cairo_rectangle(cr, nX, nY, 1, 1);
+ m_rCairoCommon.applyColor(cr, aColor, 0.0);
+ cairo_fill(cr);
+
+ basegfx::B2DRange extents = getClippedFillDamage(cr);
+ m_rCairoCommon.releaseCairoContext(cr, true, extents);
+}
+
+void SvpGraphicsBackend::drawLine(tools::Long nX1, tools::Long nY1, tools::Long nX2,
+ tools::Long nY2)
+{
+ basegfx::B2DPolygon aPoly;
+
+ // PixelOffset used: To not mix with possible PixelSnap, cannot do
+ // directly on coordinates as tried before - despite being already 'snapped'
+ // due to being integer. If it would be directly added here, it would be
+ // 'snapped' again when !getAntiAlias(), losing the (0.5, 0.5) offset
+ aPoly.append(basegfx::B2DPoint(nX1, nY1));
+ aPoly.append(basegfx::B2DPoint(nX2, nY2));
+
+ cairo_t* cr = m_rCairoCommon.getCairoContext(false, getAntiAlias());
+ m_rCairoCommon.clipRegion(cr);
+
+ // PixelOffset used: Set PixelOffset as linear transformation
+ cairo_matrix_t aMatrix;
+ cairo_matrix_init_translate(&aMatrix, 0.5, 0.5);
+ cairo_set_matrix(cr, &aMatrix);
+
+ AddPolygonToPath(cr, aPoly, basegfx::B2DHomMatrix(), !getAntiAlias(), false);
+
+ m_rCairoCommon.applyColor(cr, m_rCairoCommon.m_aLineColor);
+
+ basegfx::B2DRange extents = getClippedStrokeDamage(cr);
+ extents.transform(basegfx::utils::createTranslateB2DHomMatrix(0.5, 0.5));
+
+ cairo_stroke(cr);
+
+ m_rCairoCommon.releaseCairoContext(cr, false, extents);
+}
+
+void SvpGraphicsBackend::drawRect(tools::Long nX, tools::Long nY, tools::Long nWidth,
+ tools::Long nHeight)
+{
+ implDrawRect(nX, nY, nWidth, nHeight);
+}
+
+void SvpGraphicsBackend::implDrawRect(double nX, double nY, double nWidth, double nHeight)
+{
+ // because of the -1 hack we have to do fill and draw separately
+ Color aOrigFillColor = m_rCairoCommon.m_aFillColor;
+ Color aOrigLineColor = m_rCairoCommon.m_aLineColor;
+ m_rCairoCommon.m_aFillColor = SALCOLOR_NONE;
+ m_rCairoCommon.m_aLineColor = SALCOLOR_NONE;
+
+ if (aOrigFillColor != SALCOLOR_NONE)
+ {
+ basegfx::B2DPolygon aRect = basegfx::utils::createPolygonFromRect(
+ basegfx::B2DRectangle(nX, nY, nX + nWidth, nY + nHeight));
+ m_rCairoCommon.m_aFillColor = aOrigFillColor;
+
+ drawPolyPolygon(basegfx::B2DHomMatrix(), basegfx::B2DPolyPolygon(aRect), 0.0);
+
+ m_rCairoCommon.m_aFillColor = SALCOLOR_NONE;
+ }
+
+ if (aOrigLineColor != SALCOLOR_NONE)
+ {
+ // need same -1 hack as X11SalGraphicsImpl::drawRect
+ basegfx::B2DPolygon aRect = basegfx::utils::createPolygonFromRect(
+ basegfx::B2DRectangle(nX, nY, nX + nWidth - 1, nY + nHeight - 1));
+ m_rCairoCommon.m_aLineColor = aOrigLineColor;
+
+ drawPolyPolygon(basegfx::B2DHomMatrix(), basegfx::B2DPolyPolygon(aRect), 0.0);
+
+ m_rCairoCommon.m_aLineColor = SALCOLOR_NONE;
+ }
+
+ m_rCairoCommon.m_aFillColor = aOrigFillColor;
+ m_rCairoCommon.m_aLineColor = aOrigLineColor;
+}
+
+void SvpGraphicsBackend::drawPolyLine(sal_uInt32 nPoints, const Point* pPtAry)
+{
+ basegfx::B2DPolygon aPoly;
+ aPoly.append(basegfx::B2DPoint(pPtAry->getX(), pPtAry->getY()), nPoints);
+ for (sal_uInt32 i = 1; i < nPoints; ++i)
+ aPoly.setB2DPoint(i, basegfx::B2DPoint(pPtAry[i].getX(), pPtAry[i].getY()));
+ aPoly.setClosed(false);
+
+ drawPolyLine(basegfx::B2DHomMatrix(), aPoly, 0.0, 1.0,
+ nullptr, // MM01
+ basegfx::B2DLineJoin::Miter, css::drawing::LineCap_BUTT,
+ basegfx::deg2rad(15.0) /*default*/, false);
+}
+
+void SvpGraphicsBackend::drawPolygon(sal_uInt32 nPoints, const Point* pPtAry)
+{
+ basegfx::B2DPolygon aPoly;
+ aPoly.append(basegfx::B2DPoint(pPtAry->getX(), pPtAry->getY()), nPoints);
+ for (sal_uInt32 i = 1; i < nPoints; ++i)
+ aPoly.setB2DPoint(i, basegfx::B2DPoint(pPtAry[i].getX(), pPtAry[i].getY()));
+
+ drawPolyPolygon(basegfx::B2DHomMatrix(), basegfx::B2DPolyPolygon(aPoly), 0.0);
+}
+
+void SvpGraphicsBackend::drawPolyPolygon(sal_uInt32 nPoly, const sal_uInt32* pPointCounts,
+ const Point** pPtAry)
+{
+ basegfx::B2DPolyPolygon aPolyPoly;
+ for (sal_uInt32 nPolygon = 0; nPolygon < nPoly; ++nPolygon)
+ {
+ sal_uInt32 nPoints = pPointCounts[nPolygon];
+ if (nPoints)
+ {
+ const Point* pPoints = pPtAry[nPolygon];
+ basegfx::B2DPolygon aPoly;
+ aPoly.append(basegfx::B2DPoint(pPoints->getX(), pPoints->getY()), nPoints);
+ for (sal_uInt32 i = 1; i < nPoints; ++i)
+ aPoly.setB2DPoint(i, basegfx::B2DPoint(pPoints[i].getX(), pPoints[i].getY()));
+
+ aPolyPoly.append(aPoly);
+ }
+ }
+
+ drawPolyPolygon(basegfx::B2DHomMatrix(), aPolyPoly, 0.0);
+}
+
+bool SvpGraphicsBackend::drawPolyPolygon(const basegfx::B2DHomMatrix& rObjectToDevice,
+ const basegfx::B2DPolyPolygon& rPolyPolygon,
+ double fTransparency)
+{
+ const bool bHasFill(m_rCairoCommon.m_aFillColor != SALCOLOR_NONE);
+ const bool bHasLine(m_rCairoCommon.m_aLineColor != SALCOLOR_NONE);
+
+ if (0 == rPolyPolygon.count() || !(bHasFill || bHasLine) || fTransparency < 0.0
+ || fTransparency >= 1.0)
+ {
+ return true;
+ }
+
+ // don't bother trying to draw stuff which is effectively invisible
+ basegfx::B2DRange aPolygonRange = rPolyPolygon.getB2DRange();
+ aPolygonRange.transform(rObjectToDevice);
+ if (aPolygonRange.getWidth() < 0.1 || aPolygonRange.getHeight() < 0.1)
+ return true;
+
+ cairo_t* cr = m_rCairoCommon.getCairoContext(true, getAntiAlias());
+ m_rCairoCommon.clipRegion(cr);
+
+ // Set full (Object-to-Device) transformation - if used
+ if (!rObjectToDevice.isIdentity())
+ {
+ cairo_matrix_t aMatrix;
+
+ cairo_matrix_init(&aMatrix, rObjectToDevice.get(0, 0), rObjectToDevice.get(1, 0),
+ rObjectToDevice.get(0, 1), rObjectToDevice.get(1, 1),
+ rObjectToDevice.get(0, 2), rObjectToDevice.get(1, 2));
+ cairo_set_matrix(cr, &aMatrix);
+ }
+
+ // To make releaseCairoContext work, use empty extents
+ basegfx::B2DRange extents;
+
+ if (bHasFill)
+ {
+ add_polygon_path(cr, rPolyPolygon, rObjectToDevice, !getAntiAlias());
+
+ m_rCairoCommon.applyColor(cr, m_rCairoCommon.m_aFillColor, fTransparency);
+ // Get FillDamage (will be extended for LineDamage below)
+ extents = getClippedFillDamage(cr);
+
+ cairo_fill(cr);
+ }
+
+ if (bHasLine)
+ {
+ // PixelOffset used: Set PixelOffset as linear transformation
+ cairo_matrix_t aMatrix;
+ cairo_matrix_init_translate(&aMatrix, 0.5, 0.5);
+ cairo_set_matrix(cr, &aMatrix);
+
+ add_polygon_path(cr, rPolyPolygon, rObjectToDevice, !getAntiAlias());
+
+ m_rCairoCommon.applyColor(cr, m_rCairoCommon.m_aLineColor, fTransparency);
+
+ // expand with possible StrokeDamage
+ basegfx::B2DRange stroke_extents = getClippedStrokeDamage(cr);
+ stroke_extents.transform(basegfx::utils::createTranslateB2DHomMatrix(0.5, 0.5));
+ extents.expand(stroke_extents);
+
+ cairo_stroke(cr);
+ }
+
+ // if transformation has been applied, transform also extents (ranges)
+ // of damage so they can be correctly redrawn
+ extents.transform(rObjectToDevice);
+ m_rCairoCommon.releaseCairoContext(cr, true, extents);
+
+ return true;
+}
+
+bool SvpGraphicsBackend::drawPolyLine(const basegfx::B2DHomMatrix& rObjectToDevice,
+ const basegfx::B2DPolygon& rPolyLine, double fTransparency,
+ double fLineWidth, const std::vector<double>* pStroke,
+ basegfx::B2DLineJoin eLineJoin,
+ css::drawing::LineCap eLineCap, double fMiterMinimumAngle,
+ bool bPixelSnapHairline)
+{
+ // short circuit if there is nothing to do
+ if (0 == rPolyLine.count() || fTransparency < 0.0 || fTransparency >= 1.0)
+ {
+ return true;
+ }
+
+ // Wrap call to static version of ::drawPolyLine by
+ // preparing/getting some local data and parameters
+ // due to usage in vcl/unx/generic/gdi/salgdi.cxx.
+ // This is mainly about extended handling of extents
+ // and the way destruction of CairoContext is handled
+ // due to current XOR stuff
+ cairo_t* cr = m_rCairoCommon.getCairoContext(false, getAntiAlias());
+ basegfx::B2DRange aExtents;
+ m_rCairoCommon.clipRegion(cr);
+
+ bool bRetval(CairoCommon::drawPolyLine(cr, &aExtents, m_rCairoCommon.m_aLineColor,
+ getAntiAlias(), rObjectToDevice, rPolyLine,
+ fTransparency, fLineWidth, pStroke, eLineJoin, eLineCap,
+ fMiterMinimumAngle, bPixelSnapHairline));
+
+ m_rCairoCommon.releaseCairoContext(cr, false, aExtents);
+
+ return bRetval;
+}
+
+bool SvpGraphicsBackend::drawPolyLineBezier(sal_uInt32, const Point*, const PolyFlags*)
+{
+ SAL_INFO("vcl.gdi", "unsupported SvpSalGraphics::drawPolyLineBezier case");
+ return false;
+}
+
+bool SvpGraphicsBackend::drawPolygonBezier(sal_uInt32, const Point*, const PolyFlags*)
+{
+ SAL_INFO("vcl.gdi", "unsupported SvpSalGraphics::drawPolygonBezier case");
+ return false;
+}
+
+bool SvpGraphicsBackend::drawPolyPolygonBezier(sal_uInt32, const sal_uInt32*, const Point* const*,
+ const PolyFlags* const*)
+{
+ SAL_INFO("vcl.gdi", "unsupported SvpSalGraphics::drawPolyPolygonBezier case");
+ return false;
+}
+
+void SvpGraphicsBackend::copyArea(tools::Long nDestX, tools::Long nDestY, tools::Long nSrcX,
+ tools::Long nSrcY, tools::Long nSrcWidth, tools::Long nSrcHeight,
+ bool /*bWindowInvalidate*/)
+{
+ SalTwoRect aTR(nSrcX, nSrcY, nSrcWidth, nSrcHeight, nDestX, nDestY, nSrcWidth, nSrcHeight);
+
+ cairo_surface_t* source = m_rCairoCommon.m_pSurface;
+ m_rCairoCommon.copyBitsCairo(aTR, source, getAntiAlias());
+}
+
+void SvpGraphicsBackend::copyBits(const SalTwoRect& rTR, SalGraphics* pSrcGraphics)
+{
+ cairo_surface_t* source = nullptr;
+
+ if (pSrcGraphics)
+ {
+ SvpGraphicsBackend* pSrc = static_cast<SvpGraphicsBackend*>(pSrcGraphics->GetImpl());
+ source = pSrc->m_rCairoCommon.m_pSurface;
+ }
+ else
+ {
+ source = m_rCairoCommon.m_pSurface;
+ }
+
+ m_rCairoCommon.copyBitsCairo(rTR, source, getAntiAlias());
+}
+
+void SvpGraphicsBackend::drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap)
+{
+ // MM02 try to access buffered BitmapHelper
+ std::shared_ptr<BitmapHelper> aSurface;
+ tryToUseSourceBuffer(rSalBitmap, aSurface);
+ cairo_surface_t* source = aSurface->getSurface(rPosAry.mnDestWidth, rPosAry.mnDestHeight);
+
+ if (!source)
+ {
+ SAL_WARN("vcl.gdi", "unsupported SvpSalGraphics::drawAlphaBitmap case");
+ return;
+ }
+
+#if 0 // LO code is not yet bitmap32-ready.
+ // if m_bSupportsBitmap32 becomes true for Svp revisit this
+ m_rCairoCommon.copyWithOperator(rPosAry, source, CAIRO_OPERATOR_OVER, getAntiAlias());
+#else
+ m_rCairoCommon.copyWithOperator(rPosAry, source, CAIRO_OPERATOR_SOURCE, getAntiAlias());
+#endif
+}
+
+void SvpGraphicsBackend::drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap,
+ const SalBitmap& rTransparentBitmap)
+{
+ drawAlphaBitmap(rPosAry, rSalBitmap, rTransparentBitmap);
+}
+
+void SvpGraphicsBackend::drawMask(const SalTwoRect& rTR, const SalBitmap& rSalBitmap,
+ Color nMaskColor)
+{
+ /** creates an image from the given rectangle, replacing all black pixels
+ * with nMaskColor and make all other full transparent */
+ // MM02 here decided *against* using buffered BitmapHelper
+ // because the data gets somehow 'unmuliplied'. This may also be
+ // done just once, but I am not sure if this is safe to do.
+ // So for now dispense re-using data here.
+ BitmapHelper aSurface(rSalBitmap, true); // The mask is argb32
+ if (!aSurface.getSurface())
+ {
+ SAL_WARN("vcl.gdi", "unsupported SvpSalGraphics::drawMask case");
+ return;
+ }
+ sal_Int32 nStride;
+ unsigned char* mask_data = aSurface.getBits(nStride);
+#if !ENABLE_WASM_STRIP_PREMULTIPLY
+ vcl::bitmap::lookup_table const& unpremultiply_table = vcl::bitmap::get_unpremultiply_table();
+#endif
+ for (tools::Long y = rTR.mnSrcY; y < rTR.mnSrcY + rTR.mnSrcHeight; ++y)
+ {
+ unsigned char* row = mask_data + (nStride * y);
+ unsigned char* data = row + (rTR.mnSrcX * 4);
+ for (tools::Long x = rTR.mnSrcX; x < rTR.mnSrcX + rTR.mnSrcWidth; ++x)
+ {
+ sal_uInt8 a = data[SVP_CAIRO_ALPHA];
+#if ENABLE_WASM_STRIP_PREMULTIPLY
+ sal_uInt8 b = vcl::bitmap::unpremultiply(a, data[SVP_CAIRO_BLUE]);
+ sal_uInt8 g = vcl::bitmap::unpremultiply(a, data[SVP_CAIRO_GREEN]);
+ sal_uInt8 r = vcl::bitmap::unpremultiply(a, data[SVP_CAIRO_RED]);
+#else
+ sal_uInt8 b = unpremultiply_table[a][data[SVP_CAIRO_BLUE]];
+ sal_uInt8 g = unpremultiply_table[a][data[SVP_CAIRO_GREEN]];
+ sal_uInt8 r = unpremultiply_table[a][data[SVP_CAIRO_RED]];
+#endif
+ if (r == 0 && g == 0 && b == 0)
+ {
+ data[0] = nMaskColor.GetBlue();
+ data[1] = nMaskColor.GetGreen();
+ data[2] = nMaskColor.GetRed();
+ data[3] = 0xff;
+ }
+ else
+ {
+ data[0] = 0;
+ data[1] = 0;
+ data[2] = 0;
+ data[3] = 0;
+ }
+ data += 4;
+ }
+ }
+ aSurface.mark_dirty();
+
+ cairo_t* cr = m_rCairoCommon.getCairoContext(false, getAntiAlias());
+ m_rCairoCommon.clipRegion(cr);
+
+ cairo_rectangle(cr, rTR.mnDestX, rTR.mnDestY, rTR.mnDestWidth, rTR.mnDestHeight);
+
+ basegfx::B2DRange extents = getClippedFillDamage(cr);
+
+ cairo_clip(cr);
+
+ cairo_translate(cr, rTR.mnDestX, rTR.mnDestY);
+ double fXScale = static_cast<double>(rTR.mnDestWidth) / rTR.mnSrcWidth;
+ double fYScale = static_cast<double>(rTR.mnDestHeight) / rTR.mnSrcHeight;
+ cairo_scale(cr, fXScale, fYScale);
+ cairo_set_source_surface(cr, aSurface.getSurface(), -rTR.mnSrcX, -rTR.mnSrcY);
+
+ //tdf#133716 borders of upscaled images should not be blurred
+ cairo_pattern_t* sourcepattern = cairo_get_source(cr);
+ cairo_pattern_set_extend(sourcepattern, CAIRO_EXTEND_PAD);
+
+ cairo_paint(cr);
+
+ m_rCairoCommon.releaseCairoContext(cr, false, extents);
+}
+
+std::shared_ptr<SalBitmap> SvpGraphicsBackend::getBitmap(tools::Long nX, tools::Long nY,
+ tools::Long nWidth, tools::Long nHeight)
+{
+ std::shared_ptr<SvpSalBitmap> pBitmap = std::make_shared<SvpSalBitmap>();
+ BitmapPalette aPal;
+ vcl::PixelFormat ePixelFormat = vcl::PixelFormat::INVALID;
+ if (GetBitCount() == 1)
+ {
+ ePixelFormat = vcl::PixelFormat::N1_BPP;
+ aPal.SetEntryCount(2);
+ aPal[0] = COL_BLACK;
+ aPal[1] = COL_WHITE;
+ }
+ else
+ {
+ ePixelFormat = vcl::PixelFormat::N32_BPP;
+ }
+
+ if (!pBitmap->Create(Size(nWidth, nHeight), ePixelFormat, aPal))
+ {
+ SAL_WARN("vcl.gdi", "SvpSalGraphics::getBitmap, cannot create bitmap");
+ return nullptr;
+ }
+
+ cairo_surface_t* target = CairoCommon::createCairoSurface(pBitmap->GetBuffer());
+ if (!target)
+ {
+ SAL_WARN("vcl.gdi", "SvpSalGraphics::getBitmap, cannot create cairo surface");
+ return nullptr;
+ }
+ cairo_t* cr = cairo_create(target);
+
+ SalTwoRect aTR(nX, nY, nWidth, nHeight, 0, 0, nWidth, nHeight);
+ CairoCommon::renderSource(cr, aTR, m_rCairoCommon.m_pSurface);
+
+ cairo_destroy(cr);
+ cairo_surface_destroy(target);
+
+ Toggle1BitTransparency(*pBitmap->GetBuffer());
+
+ return pBitmap;
+}
+
+void SvpGraphicsBackend::drawBitmapBuffer(const SalTwoRect& rTR, const BitmapBuffer* pBuffer,
+ cairo_operator_t eOp)
+{
+ cairo_surface_t* source = CairoCommon::createCairoSurface(pBuffer);
+ m_rCairoCommon.copyWithOperator(rTR, source, eOp, getAntiAlias());
+ cairo_surface_destroy(source);
+}
+
+Color SvpGraphicsBackend::getPixel(tools::Long nX, tools::Long nY)
+{
+#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 12, 0)
+ cairo_surface_t* target
+ = cairo_surface_create_similar_image(m_rCairoCommon.m_pSurface, CAIRO_FORMAT_ARGB32, 1, 1);
+#else
+ cairo_surface_t* target = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 1, 1);
+#endif
+
+ cairo_t* cr = cairo_create(target);
+
+ cairo_rectangle(cr, 0, 0, 1, 1);
+ cairo_set_source_surface(cr, m_rCairoCommon.m_pSurface, -nX, -nY);
+ cairo_paint(cr);
+ cairo_destroy(cr);
+
+ cairo_surface_flush(target);
+#if !ENABLE_WASM_STRIP_PREMULTIPLY
+ vcl::bitmap::lookup_table const& unpremultiply_table = vcl::bitmap::get_unpremultiply_table();
+#endif
+ unsigned char* data = cairo_image_surface_get_data(target);
+ sal_uInt8 a = data[SVP_CAIRO_ALPHA];
+#if ENABLE_WASM_STRIP_PREMULTIPLY
+ sal_uInt8 b = vcl::bitmap::unpremultiply(a, data[SVP_CAIRO_BLUE]);
+ sal_uInt8 g = vcl::bitmap::unpremultiply(a, data[SVP_CAIRO_GREEN]);
+ sal_uInt8 r = vcl::bitmap::unpremultiply(a, data[SVP_CAIRO_RED]);
+#else
+ sal_uInt8 b = unpremultiply_table[a][data[SVP_CAIRO_BLUE]];
+ sal_uInt8 g = unpremultiply_table[a][data[SVP_CAIRO_GREEN]];
+ sal_uInt8 r = unpremultiply_table[a][data[SVP_CAIRO_RED]];
+#endif
+ Color aColor(ColorAlpha, a, r, g, b);
+ cairo_surface_destroy(target);
+
+ return aColor;
+}
+
+void SvpGraphicsBackend::invert(tools::Long nX, tools::Long nY, tools::Long nWidth,
+ tools::Long nHeight, SalInvert nFlags)
+{
+ basegfx::B2DPolygon aRect = basegfx::utils::createPolygonFromRect(
+ basegfx::B2DRectangle(nX, nY, nX + nWidth, nY + nHeight));
+
+ m_rCairoCommon.invert(aRect, nFlags, getAntiAlias());
+}
+
+void SvpGraphicsBackend::invert(sal_uInt32 nPoints, const Point* pPtAry, SalInvert nFlags)
+{
+ basegfx::B2DPolygon aPoly;
+ aPoly.append(basegfx::B2DPoint(pPtAry->getX(), pPtAry->getY()), nPoints);
+ for (sal_uInt32 i = 1; i < nPoints; ++i)
+ aPoly.setB2DPoint(i, basegfx::B2DPoint(pPtAry[i].getX(), pPtAry[i].getY()));
+ aPoly.setClosed(true);
+
+ m_rCairoCommon.invert(aPoly, nFlags, getAntiAlias());
+}
+
+bool SvpGraphicsBackend::drawEPS(tools::Long /*nX*/, tools::Long /*nY*/, tools::Long /*nWidth*/,
+ tools::Long /*nHeight*/, void* /*pPtr*/, sal_uInt32 /*nSize*/)
+{
+ return false;
+}
+
+bool SvpGraphicsBackend::blendBitmap(const SalTwoRect& /*rPosAry*/, const SalBitmap& /*rBitmap*/)
+{
+ return false;
+}
+
+bool SvpGraphicsBackend::blendAlphaBitmap(const SalTwoRect& /*rPosAry*/,
+ const SalBitmap& /*rSrcBitmap*/,
+ const SalBitmap& /*rMaskBitmap*/,
+ const SalBitmap& /*rAlphaBitmap*/)
+{
+ return false;
+}
+
+bool SvpGraphicsBackend::drawAlphaBitmap(const SalTwoRect& rTR, const SalBitmap& rSourceBitmap,
+ const SalBitmap& rAlphaBitmap)
+{
+ if (rAlphaBitmap.GetBitCount() != 8 && rAlphaBitmap.GetBitCount() != 1)
+ {
+ SAL_WARN("vcl.gdi", "unsupported SvpSalGraphics::drawAlphaBitmap alpha depth case: "
+ << rAlphaBitmap.GetBitCount());
+ return false;
+ }
+
+ // MM02 try to access buffered BitmapHelper
+ std::shared_ptr<BitmapHelper> aSurface;
+ tryToUseSourceBuffer(rSourceBitmap, aSurface);
+ cairo_surface_t* source = aSurface->getSurface(rTR.mnDestWidth, rTR.mnDestHeight);
+
+ if (!source)
+ {
+ SAL_WARN("vcl.gdi", "unsupported SvpSalGraphics::drawAlphaBitmap case");
+ return false;
+ }
+
+ // MM02 try to access buffered MaskHelper
+ std::shared_ptr<MaskHelper> aMask;
+ tryToUseMaskBuffer(rAlphaBitmap, aMask);
+ cairo_surface_t* mask = aMask->getSurface(rTR.mnDestWidth, rTR.mnDestHeight);
+
+ if (!mask)
+ {
+ SAL_WARN("vcl.gdi", "unsupported SvpSalGraphics::drawAlphaBitmap case");
+ return false;
+ }
+
+ cairo_t* cr = m_rCairoCommon.getCairoContext(false, getAntiAlias());
+ m_rCairoCommon.clipRegion(cr);
+
+ cairo_rectangle(cr, rTR.mnDestX, rTR.mnDestY, rTR.mnDestWidth, rTR.mnDestHeight);
+
+ basegfx::B2DRange extents = getClippedFillDamage(cr);
+
+ cairo_clip(cr);
+
+ cairo_pattern_t* maskpattern = cairo_pattern_create_for_surface(mask);
+ cairo_translate(cr, rTR.mnDestX, rTR.mnDestY);
+ double fXScale = static_cast<double>(rTR.mnDestWidth) / rTR.mnSrcWidth;
+ double fYScale = static_cast<double>(rTR.mnDestHeight) / rTR.mnSrcHeight;
+ cairo_scale(cr, fXScale, fYScale);
+ cairo_set_source_surface(cr, source, -rTR.mnSrcX, -rTR.mnSrcY);
+
+ cairo_pattern_t* sourcepattern = cairo_get_source(cr);
+
+ //tdf#133716 borders of upscaled images should not be blurred
+ //tdf#114117 when stretching a single or multi pixel width/height source to fit an area
+ //the image will be extended into that size.
+ cairo_pattern_set_extend(sourcepattern, CAIRO_EXTEND_PAD);
+ cairo_pattern_set_extend(maskpattern, CAIRO_EXTEND_PAD);
+
+ //this block is just "cairo_mask_surface", but we have to make it explicit
+ //because of the cairo_pattern_set_filter etc we may want applied
+ cairo_matrix_t matrix;
+ cairo_matrix_init_translate(&matrix, rTR.mnSrcX, rTR.mnSrcY);
+ cairo_pattern_set_matrix(maskpattern, &matrix);
+ cairo_mask(cr, maskpattern);
+
+ cairo_pattern_destroy(maskpattern);
+
+ m_rCairoCommon.releaseCairoContext(cr, false, extents);
+
+ return true;
+}
+
+bool SvpGraphicsBackend::drawTransformedBitmap(const basegfx::B2DPoint& rNull,
+ const basegfx::B2DPoint& rX,
+ const basegfx::B2DPoint& rY,
+ const SalBitmap& rSourceBitmap,
+ const SalBitmap* pAlphaBitmap, double fAlpha)
+{
+ if (pAlphaBitmap && pAlphaBitmap->GetBitCount() != 8 && pAlphaBitmap->GetBitCount() != 1)
+ {
+ SAL_WARN("vcl.gdi", "unsupported SvpSalGraphics::drawTransformedBitmap alpha depth case: "
+ << pAlphaBitmap->GetBitCount());
+ return false;
+ }
+
+ if (fAlpha != 1.0)
+ return false;
+
+ // MM02 try to access buffered BitmapHelper
+ std::shared_ptr<BitmapHelper> aSurface;
+ tryToUseSourceBuffer(rSourceBitmap, aSurface);
+ const tools::Long nDestWidth(basegfx::fround(basegfx::B2DVector(rX - rNull).getLength()));
+ const tools::Long nDestHeight(basegfx::fround(basegfx::B2DVector(rY - rNull).getLength()));
+ cairo_surface_t* source(aSurface->getSurface(nDestWidth, nDestHeight));
+
+ if (!source)
+ {
+ SAL_WARN("vcl.gdi", "unsupported SvpSalGraphics::drawTransformedBitmap case");
+ return false;
+ }
+
+ // MM02 try to access buffered MaskHelper
+ std::shared_ptr<MaskHelper> aMask;
+ if (nullptr != pAlphaBitmap)
+ {
+ tryToUseMaskBuffer(*pAlphaBitmap, aMask);
+ }
+
+ // access cairo_surface_t from MaskHelper
+ cairo_surface_t* mask(nullptr);
+ if (aMask)
+ {
+ mask = aMask->getSurface(nDestWidth, nDestHeight);
+ }
+
+ if (nullptr != pAlphaBitmap && nullptr == mask)
+ {
+ SAL_WARN("vcl.gdi", "unsupported SvpSalGraphics::drawTransformedBitmap case");
+ return false;
+ }
+
+ const Size aSize = rSourceBitmap.GetSize();
+ cairo_t* cr = m_rCairoCommon.getCairoContext(false, getAntiAlias());
+ m_rCairoCommon.clipRegion(cr);
+
+ // setup the image transformation
+ // using the rNull,rX,rY points as destinations for the (0,0),(0,Width),(Height,0) source points
+ const basegfx::B2DVector aXRel = rX - rNull;
+ const basegfx::B2DVector aYRel = rY - rNull;
+ cairo_matrix_t matrix;
+ cairo_matrix_init(&matrix, aXRel.getX() / aSize.Width(), aXRel.getY() / aSize.Width(),
+ aYRel.getX() / aSize.Height(), aYRel.getY() / aSize.Height(), rNull.getX(),
+ rNull.getY());
+
+ cairo_transform(cr, &matrix);
+
+ cairo_rectangle(cr, 0, 0, aSize.Width(), aSize.Height());
+ basegfx::B2DRange extents = getClippedFillDamage(cr);
+ cairo_clip(cr);
+
+ cairo_set_source_surface(cr, source, 0, 0);
+ if (mask)
+ cairo_mask_surface(cr, mask, 0, 0);
+ else
+ cairo_paint(cr);
+
+ m_rCairoCommon.releaseCairoContext(cr, false, extents);
+
+ return true;
+}
+
+bool SvpGraphicsBackend::hasFastDrawTransformedBitmap() const { return false; }
+
+bool SvpGraphicsBackend::drawAlphaRect(tools::Long nX, tools::Long nY, tools::Long nWidth,
+ tools::Long nHeight, sal_uInt8 nTransparency)
+{
+ const bool bHasFill(m_rCairoCommon.m_aFillColor != SALCOLOR_NONE);
+ const bool bHasLine(m_rCairoCommon.m_aLineColor != SALCOLOR_NONE);
+
+ if (!(bHasFill || bHasLine))
+ {
+ return true;
+ }
+
+ cairo_t* cr = m_rCairoCommon.getCairoContext(false, getAntiAlias());
+ m_rCairoCommon.clipRegion(cr);
+
+ const double fTransparency = nTransparency * (1.0 / 100);
+
+ // To make releaseCairoContext work, use empty extents
+ basegfx::B2DRange extents;
+
+ if (bHasFill)
+ {
+ cairo_rectangle(cr, nX, nY, nWidth, nHeight);
+
+ m_rCairoCommon.applyColor(cr, m_rCairoCommon.m_aFillColor, fTransparency);
+
+ // set FillDamage
+ extents = getClippedFillDamage(cr);
+
+ cairo_fill(cr);
+ }
+
+ if (bHasLine)
+ {
+ // PixelOffset used: Set PixelOffset as linear transformation
+ // Note: Was missing here - probably not by purpose (?)
+ cairo_matrix_t aMatrix;
+ cairo_matrix_init_translate(&aMatrix, 0.5, 0.5);
+ cairo_set_matrix(cr, &aMatrix);
+
+ cairo_rectangle(cr, nX, nY, nWidth, nHeight);
+
+ m_rCairoCommon.applyColor(cr, m_rCairoCommon.m_aLineColor, fTransparency);
+
+ // expand with possible StrokeDamage
+ basegfx::B2DRange stroke_extents = getClippedStrokeDamage(cr);
+ stroke_extents.transform(basegfx::utils::createTranslateB2DHomMatrix(0.5, 0.5));
+ extents.expand(stroke_extents);
+
+ cairo_stroke(cr);
+ }
+
+ m_rCairoCommon.releaseCairoContext(cr, false, extents);
+
+ return true;
+}
+
+bool SvpGraphicsBackend::drawGradient(const tools::PolyPolygon& rPolyPolygon,
+ const Gradient& rGradient)
+{
+ if (rGradient.GetStyle() != GradientStyle::Linear
+ && rGradient.GetStyle() != GradientStyle::Radial)
+ return false; // unsupported
+ if (rGradient.GetSteps() != 0)
+ return false; // We can't tell cairo how many colors to use in the gradient.
+
+ cairo_t* cr = m_rCairoCommon.getCairoContext(true, getAntiAlias());
+ m_rCairoCommon.clipRegion(cr);
+
+ tools::Rectangle aInputRect(rPolyPolygon.GetBoundRect());
+ if (rPolyPolygon.IsRect())
+ {
+ // Rect->Polygon conversion loses the right and bottom edge, fix that.
+ aInputRect.AdjustRight(1);
+ aInputRect.AdjustBottom(1);
+ basegfx::B2DHomMatrix rObjectToDevice;
+ AddPolygonToPath(cr, tools::Polygon(aInputRect).getB2DPolygon(), rObjectToDevice,
+ !getAntiAlias(), false);
+ }
+ else
+ {
+ basegfx::B2DPolyPolygon aB2DPolyPolygon(rPolyPolygon.getB2DPolyPolygon());
+ for (auto const& rPolygon : std::as_const(aB2DPolyPolygon))
+ {
+ basegfx::B2DHomMatrix rObjectToDevice;
+ AddPolygonToPath(cr, rPolygon, rObjectToDevice, !getAntiAlias(), false);
+ }
+ }
+
+ Gradient aGradient(rGradient);
+
+ tools::Rectangle aBoundRect;
+ Point aCenter;
+
+ aGradient.SetAngle(aGradient.GetAngle() + 2700_deg10);
+ aGradient.GetBoundRect(aInputRect, aBoundRect, aCenter);
+ Color aStartColor = aGradient.GetStartColor();
+ Color aEndColor = aGradient.GetEndColor();
+
+ cairo_pattern_t* pattern;
+ if (rGradient.GetStyle() == GradientStyle::Linear)
+ {
+ tools::Polygon aPoly(aBoundRect);
+ aPoly.Rotate(aCenter, aGradient.GetAngle() % 3600_deg10);
+ pattern
+ = cairo_pattern_create_linear(aPoly[0].X(), aPoly[0].Y(), aPoly[1].X(), aPoly[1].Y());
+ }
+ else
+ {
+ double radius = std::max(aBoundRect.GetWidth() / 2.0, aBoundRect.GetHeight() / 2.0);
+ // Move the center a bit to the top-left (the default VCL algorithm is a bit off-center that way,
+ // cairo is the opposite way).
+ pattern = cairo_pattern_create_radial(aCenter.X() - 0.5, aCenter.Y() - 0.5, 0,
+ aCenter.X() - 0.5, aCenter.Y() - 0.5, radius);
+ std::swap(aStartColor, aEndColor);
+ }
+
+ cairo_pattern_add_color_stop_rgba(
+ pattern, aGradient.GetBorder() / 100.0,
+ aStartColor.GetRed() * aGradient.GetStartIntensity() / 25500.0,
+ aStartColor.GetGreen() * aGradient.GetStartIntensity() / 25500.0,
+ aStartColor.GetBlue() * aGradient.GetStartIntensity() / 25500.0, 1.0);
+
+ cairo_pattern_add_color_stop_rgba(
+ pattern, 1.0, aEndColor.GetRed() * aGradient.GetEndIntensity() / 25500.0,
+ aEndColor.GetGreen() * aGradient.GetEndIntensity() / 25500.0,
+ aEndColor.GetBlue() * aGradient.GetEndIntensity() / 25500.0, 1.0);
+
+ cairo_set_source(cr, pattern);
+ cairo_pattern_destroy(pattern);
+
+ basegfx::B2DRange extents = getClippedFillDamage(cr);
+ cairo_fill_preserve(cr);
+
+ m_rCairoCommon.releaseCairoContext(cr, true, extents);
+
+ return true;
+}
+
+bool SvpGraphicsBackend::implDrawGradient(basegfx::B2DPolyPolygon const& rPolyPolygon,
+ SalGradient const& rGradient)
+{
+ cairo_t* cr = m_rCairoCommon.getCairoContext(true, getAntiAlias());
+ m_rCairoCommon.clipRegion(cr);
+
+ basegfx::B2DHomMatrix rObjectToDevice;
+
+ for (auto const& rPolygon : rPolyPolygon)
+ AddPolygonToPath(cr, rPolygon, rObjectToDevice, !getAntiAlias(), false);
+
+ cairo_pattern_t* pattern
+ = cairo_pattern_create_linear(rGradient.maPoint1.getX(), rGradient.maPoint1.getY(),
+ rGradient.maPoint2.getX(), rGradient.maPoint2.getY());
+
+ for (SalGradientStop const& rStop : rGradient.maStops)
+ {
+ double r = rStop.maColor.GetRed() / 255.0;
+ double g = rStop.maColor.GetGreen() / 255.0;
+ double b = rStop.maColor.GetBlue() / 255.0;
+ double a = rStop.maColor.GetAlpha() / 255.0;
+ double offset = rStop.mfOffset;
+
+ cairo_pattern_add_color_stop_rgba(pattern, offset, r, g, b, a);
+ }
+ cairo_set_source(cr, pattern);
+ cairo_pattern_destroy(pattern);
+
+ basegfx::B2DRange extents = getClippedFillDamage(cr);
+ cairo_fill_preserve(cr);
+
+ m_rCairoCommon.releaseCairoContext(cr, true, extents);
+
+ return true;
+}
+
+bool SvpGraphicsBackend::supportsOperation(OutDevSupportType eType) const
+{
+ switch (eType)
+ {
+ case OutDevSupportType::TransparentRect:
+ case OutDevSupportType::B2DDraw:
+ return true;
+ }
+ return false;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */