vcl: Introduce SvpGraphicsBackend

SvpGraphicsBackend contains the implementation of the graphic
drawing backend, which uses cairo for drawing. Currently the
cairo based graphic drawing implementation is on SvpSalGraphics,
but will be steb-by-step moved into SvpGraphicsBackend, just like
with other vcl plugins.

Change-Id: I70c94f08c5bd1d705f2faeacb66373ddf12f494a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/127702
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

1 files changed, 132 insertions, 0 deletions

diff --git a/vcl/inc/headless/SvpGraphicsBackend.hxx b/vcl/inc/headless/SvpGraphicsBackend.hxx
new file mode 100644
index 000000000000..a21e886abf7f
--- /dev/null
+++ b/vcl/inc/headless/SvpGraphicsBackend.hxx
@@ -0,0 +1,132 @@
+/* -*- 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 <vcl/dllapi.h>
+#include <tools/long.hxx>
+#include <tools/color.hxx>
+#include <salgdiimpl.hxx>
+#include <salgdi.hxx>
+
+class VCL_DLLPUBLIC SvpGraphicsBackend : public SalGraphicsImpl
+{
+public:
+    SvpGraphicsBackend();
+
+    void Init() override;
+
+    void freeResources() override;
+
+    OUString getRenderBackendName() const override { return "svp"; }
+
+    bool setClipRegion(vcl::Region const& rRegion) override;
+    void ResetClipRegion() override;
+
+    sal_uInt16 GetBitCount() const override;
+
+    tools::Long GetGraphicsWidth() const override;
+
+    void SetLineColor() override;
+    void SetLineColor(Color nColor) override;
+    void SetFillColor() override;
+    void SetFillColor(Color nColor) override;
+    void SetXORMode(bool bSet, bool bInvertOnly) override;
+    void SetROPLineColor(SalROPColor nROPColor) override;
+    void SetROPFillColor(SalROPColor nROPColor) override;
+
+    void drawPixel(tools::Long nX, tools::Long nY) override;
+    void drawPixel(tools::Long nX, tools::Long nY, Color nColor) override;
+
+    void drawLine(tools::Long nX1, tools::Long nY1, tools::Long nX2, tools::Long nY2) override;
+    void drawRect(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight) override;
+    void drawPolyLine(sal_uInt32 nPoints, const Point* pPointArray) override;
+    void drawPolygon(sal_uInt32 nPoints, const Point* pPointArray) override;
+    void drawPolyPolygon(sal_uInt32 nPoly, const sal_uInt32* pPoints,
+                         const Point** pPointArray) override;
+
+    bool drawPolyPolygon(const basegfx::B2DHomMatrix& rObjectToDevice,
+                         const basegfx::B2DPolyPolygon&, double fTransparency) override;
+
+    bool drawPolyLine(const basegfx::B2DHomMatrix& rObjectToDevice, const basegfx::B2DPolygon&,
+                      double fTransparency, double fLineWidth, const std::vector<double>* pStroke,
+                      basegfx::B2DLineJoin, css::drawing::LineCap, double fMiterMinimumAngle,
+                      bool bPixelSnapHairline) override;
+
+    bool drawPolyLineBezier(sal_uInt32 nPoints, const Point* pPointArray,
+                            const PolyFlags* pFlagArray) override;
+
+    bool drawPolygonBezier(sal_uInt32 nPoints, const Point* pPointArray,
+                           const PolyFlags* pFlagArray) override;
+
+    bool drawPolyPolygonBezier(sal_uInt32 nPoly, const sal_uInt32* pPoints,
+                               const Point* const* pPointArray,
+                               const PolyFlags* const* pFlagArray) override;
+
+    void copyArea(tools::Long nDestX, tools::Long nDestY, tools::Long nSrcX, tools::Long nSrcY,
+                  tools::Long nSrcWidth, tools::Long nSrcHeight, bool bWindowInvalidate) override;
+
+    void copyBits(const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics) override;
+
+    void drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap) override;
+
+    void drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap,
+                    const SalBitmap& rMaskBitmap) override;
+
+    void drawMask(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap,
+                  Color nMaskColor) override;
+
+    std::shared_ptr<SalBitmap> getBitmap(tools::Long nX, tools::Long nY, tools::Long nWidth,
+                                         tools::Long nHeight) override;
+
+    Color getPixel(tools::Long nX, tools::Long nY) override;
+
+    void invert(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight,
+                SalInvert nFlags) override;
+
+    void invert(sal_uInt32 nPoints, const Point* pPtAry, SalInvert nFlags) override;
+
+    bool drawEPS(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight,
+                 void* pPtr, sal_uInt32 nSize) override;
+
+    bool blendBitmap(const SalTwoRect&, const SalBitmap& rBitmap) override;
+
+    bool blendAlphaBitmap(const SalTwoRect&, const SalBitmap& rSrcBitmap,
+                          const SalBitmap& rMaskBitmap, const SalBitmap& rAlphaBitmap) override;
+
+    bool drawAlphaBitmap(const SalTwoRect&, const SalBitmap& rSourceBitmap,
+                         const SalBitmap& rAlphaBitmap) override;
+
+    bool drawTransformedBitmap(const basegfx::B2DPoint& rNull, const basegfx::B2DPoint& rX,
+                               const basegfx::B2DPoint& rY, const SalBitmap& rSourceBitmap,
+                               const SalBitmap* pAlphaBitmap, double fAlpha) override;
+
+    bool hasFastDrawTransformedBitmap() const override;
+
+    bool drawAlphaRect(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight,
+                       sal_uInt8 nTransparency) override;
+
+    bool drawGradient(const tools::PolyPolygon& rPolygon, const Gradient& rGradient) override;
+    bool implDrawGradient(basegfx::B2DPolyPolygon const& rPolyPolygon,
+                          SalGradient const& rGradient) override;
+
+    bool supportsOperation(OutDevSupportType eType) const override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */