vcl/inc/headless/svpgdi.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_VCL_INC_HEADLESS_SVPGDI_HXX
  21 #define INCLUDED_VCL_INC_HEADLESS_SVPGDI_HXX
  22
  23 #include <osl/endian.h>
  24 #include <vcl/sysdata.hxx>
  25 #include <vcl/metric.hxx>
  26 #include <config_cairo_canvas.h>
  27
  28 #include "salgdi.hxx"
  29 #include "sallayout.hxx"
  30 #include "svpcairotextrender.hxx"
  31 #include "impfontmetricdata.hxx"
  32
  33 #ifdef IOS
  34 #define SvpSalGraphics AquaSalGraphics
  35 #else
  36
  37 //Using formats that match cairo's formats. For android we patch cairo,
  38 //which is internal in that case, to swap the rgb components so that
  39 //cairo then matches the OpenGL GL_RGBA format so we can use it there
  40 //where we don't have GL_BGRA support.
  41 #if defined ANDROID
  42 #   define SVP_CAIRO_FORMAT (ScanlineFormat::N32BitTcRgba | ScanlineFormat::TopDown)
  43 #   define SVP_CAIRO_BLUE 1
  44 #   define SVP_CAIRO_GREEN 2
  45 #   define SVP_CAIRO_RED 0
  46 #   define SVP_CAIRO_ALPHA 3
  47 #elif defined OSL_BIGENDIAN
  48 #   define SVP_CAIRO_FORMAT (ScanlineFormat::N32BitTcArgb | ScanlineFormat::TopDown)
  49 #   define SVP_CAIRO_BLUE 3
  50 #   define SVP_CAIRO_GREEN 2
  51 #   define SVP_CAIRO_RED 1
  52 #   define SVP_CAIRO_ALPHA 0
  53 #else
  54 #   define SVP_CAIRO_FORMAT (ScanlineFormat::N32BitTcBgra | ScanlineFormat::TopDown)
  55 #   define SVP_CAIRO_BLUE 0
  56 #   define SVP_CAIRO_GREEN 1
  57 #   define SVP_CAIRO_RED 2
  58 #   define SVP_CAIRO_ALPHA 3
  59 #endif
  60
  61 struct BitmapBuffer;
  62 class GlyphCache;
  63 class FreetypeFont;
  64 typedef struct _cairo cairo_t;
  65 typedef struct _cairo_surface cairo_surface_t;
  66 typedef struct _cairo_user_data_key cairo_user_data_key_t;
  67
  68 enum class PaintMode { Over, Xor };
  69
  70 typedef void (*damageHandler)(void* handle,
  71                               sal_Int32 nExtentsX, sal_Int32 nExtentsY,
  72                               sal_Int32 nExtentsWidth, sal_Int32 nExtentsHeight);
  73
  74 struct VCL_DLLPUBLIC DamageHandler
  75 {
  76     void *handle;
  77     damageHandler damaged;
  78 };
  79
  80 class VCL_DLLPUBLIC SvpSalGraphics : public SalGraphics
  81 {
  82     cairo_surface_t*               m_pSurface;
  83     basegfx::B2IVector             m_aFrameSize;
  84     double                         m_fScale;
  85     SalColor                       m_aLineColor;
  86     SalColor                       m_aFillColor;
  87     PaintMode                      m_ePaintMode;
  88
  89 public:
  90     static GlyphCache& getPlatformGlyphCache();
  91     void setSurface(cairo_surface_t* pSurface, const basegfx::B2IVector& rSize);
  92     static cairo_user_data_key_t* getDamageKey();
  93
  94 private:
  95     void invert(const basegfx::B2DPolygon &rPoly, SalInvert nFlags);
  96     void copySource(const SalTwoRect& rTR, cairo_surface_t* source);
  97     void setupPolyPolygon(cairo_t* cr, const basegfx::B2DPolyPolygon& rPolyPoly);
  98     void applyColor(cairo_t *cr, SalColor rColor);
  99     void drawPolyPolygon(const basegfx::B2DPolyPolygon& rPolyPoly);
 100 protected:
 101     vcl::Region                         m_aClipRegion;
 102     SvpCairoTextRender                  m_aTextRenderImpl;
 103
 104 protected:
 105     virtual bool blendBitmap( const SalTwoRect&, const SalBitmap& rBitmap ) override;
 106     virtual bool blendAlphaBitmap( const SalTwoRect&,
 107                                    const SalBitmap& rSrcBitmap,
 108                                    const SalBitmap& rMaskBitmap,
 109                                    const SalBitmap& rAlphaBitmap ) override;
 110     virtual bool drawAlphaBitmap( const SalTwoRect&, const SalBitmap& rSourceBitmap, const SalBitmap& rAlphaBitmap ) override;
 111     virtual bool drawTransformedBitmap(
 112         const basegfx::B2DPoint& rNull,
 113         const basegfx::B2DPoint& rX,
 114         const basegfx::B2DPoint& rY,
 115         const SalBitmap& rSourceBitmap,
 116         const SalBitmap* pAlphaBitmap) override;
 117     virtual bool drawAlphaRect( long nX, long nY, long nWidth, long nHeight, sal_uInt8 nTransparency ) override;
 118
 119     cairo_t* createTmpCompatibleCairoContext() const;
 120
 121 public:
 122     SvpSalGraphics();
 123     virtual ~SvpSalGraphics() override;
 124
 125     virtual SalGraphicsImpl* GetImpl() const override { return nullptr; };
 126     virtual void            GetResolution( sal_Int32& rDPIX, sal_Int32& rDPIY ) override;
 127     virtual sal_uInt16      GetBitCount() const override;
 128     virtual long            GetGraphicsWidth() const override;
 129
 130     virtual void            ResetClipRegion() override;
 131     virtual bool            setClipRegion( const vcl::Region& ) override;
 132
 133     virtual void            SetLineColor() override;
 134     virtual void            SetLineColor( SalColor nSalColor ) override;
 135     virtual void            SetFillColor() override;
 136     virtual void            SetFillColor( SalColor nSalColor ) override;
 137
 138     virtual void            SetXORMode( bool bSet ) override;
 139
 140     virtual void            SetROPLineColor( SalROPColor nROPColor ) override;
 141     virtual void            SetROPFillColor( SalROPColor nROPColor ) override;
 142
 143     virtual void            SetTextColor( SalColor nSalColor ) override;
 144     virtual void            SetFont( FontSelectPattern*, int nFallbackLevel ) override;
 145     virtual void            GetFontMetric( ImplFontMetricDataRef&, int nFallbackLevel ) override;
 146     virtual const FontCharMapRef GetFontCharMap() const override;
 147     virtual bool GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const override;
 148     virtual void            GetDevFontList( PhysicalFontCollection* ) override;
 149     virtual void ClearDevFontCache() override;
 150     virtual bool            AddTempDevFont( PhysicalFontCollection*, const OUString& rFileURL, const OUString& rFontName ) override;
 151     virtual bool        CreateFontSubset( const OUString& rToFile,
 152                                               const PhysicalFontFace*,
 153                                               const sal_GlyphId* pGlyphIds,
 154                                               const sal_uInt8* pEncoding,
 155                                               sal_Int32* pWidths,
 156                                               int nGlyphs,
 157                                               FontSubsetInfo& rInfo
 158                                               ) override;
 159     virtual const void*     GetEmbedFontData(const PhysicalFontFace*, long* pDataLen) override;
 160     virtual void            FreeEmbedFontData( const void* pData, long nDataLen ) override;
 161     virtual void            GetGlyphWidths( const PhysicalFontFace*,
 162                                             bool bVertical,
 163                                             std::vector< sal_Int32 >& rWidths,
 164                                             Ucs2UIntMap& rUnicodeEnc ) override;
 165     virtual bool            GetGlyphBoundRect(const GlyphItem&, tools::Rectangle&) override;
 166     virtual bool            GetGlyphOutline(const GlyphItem&, basegfx::B2DPolyPolygon&) override;
 167     virtual SalLayout*      GetTextLayout( ImplLayoutArgs&, int nFallbackLevel ) override;
 168     virtual void            DrawTextLayout( const CommonSalLayout& ) override;
 169     virtual bool            supportsOperation( OutDevSupportType ) const override;
 170     virtual void            drawPixel( long nX, long nY ) override;
 171     virtual void            drawPixel( long nX, long nY, SalColor nSalColor ) override;
 172     virtual void            drawLine( long nX1, long nY1, long nX2, long nY2 ) override;
 173     virtual void            drawRect( long nX, long nY, long nWidth, long nHeight ) override;
 174     virtual bool            drawPolyPolygon( const basegfx::B2DPolyPolygon&, double fTransparency ) override;
 175     virtual bool            drawPolyLine( const basegfx::B2DPolygon&,
 176                                           double fTransparency,
 177                                           const basegfx::B2DVector& rLineWidths,
 178                                           basegfx::B2DLineJoin,
 179                                           css::drawing::LineCap,
 180                                           double fMiterMinimumAngle) override;
 181     virtual void            drawPolyLine( sal_uInt32 nPoints, const SalPoint* pPtAry ) override;
 182     virtual void            drawPolygon( sal_uInt32 nPoints, const SalPoint* pPtAry ) override;
 183     virtual void            drawPolyPolygon( sal_uInt32 nPoly,
 184                                              const sal_uInt32* pPoints,
 185                                              PCONSTSALPOINT* pPtAry ) override;
 186     virtual bool        drawPolyLineBezier( sal_uInt32 nPoints,
 187                                                 const SalPoint* pPtAry,
 188                                                 const PolyFlags* pFlgAry ) override;
 189     virtual bool        drawPolygonBezier( sal_uInt32 nPoints,
 190                                                const SalPoint* pPtAry,
 191                                                const PolyFlags* pFlgAry ) override;
 192     virtual bool        drawPolyPolygonBezier( sal_uInt32 nPoly,
 193                                                    const sal_uInt32* pPoints,
 194                                                    const SalPoint* const* pPtAry,
 195                                                    const PolyFlags* const* pFlgAry ) override;
 196     virtual bool            drawGradient( const tools::PolyPolygon&, const Gradient& ) override { return false; };
 197
 198     virtual void            copyArea( long nDestX,
 199                                       long nDestY,
 200                                       long nSrcX,
 201                                       long nSrcY,
 202                                       long nSrcWidth,
 203                                       long nSrcHeight,
 204                                       bool bWindowInvalidate) override;
 205     virtual void            copyBits( const SalTwoRect& rPosAry,
 206                                       SalGraphics* pSrcGraphics ) override;
 207     virtual void            drawBitmap( const SalTwoRect& rPosAry,
 208                                         const SalBitmap& rSalBitmap ) override;
 209     virtual void            drawBitmap( const SalTwoRect& rPosAry,
 210                                         const SalBitmap& rSalBitmap,
 211                                         const SalBitmap& rTransparentBitmap ) override;
 212     virtual void            drawMask( const SalTwoRect& rPosAry,
 213                                       const SalBitmap& rSalBitmap,
 214                                       SalColor nMaskColor ) override;
 215     virtual SalBitmap*      getBitmap( long nX, long nY, long nWidth, long nHeight ) override;
 216     virtual SalColor        getPixel( long nX, long nY ) override;
 217     virtual void            invert( long nX, long nY, long nWidth, long nHeight, SalInvert nFlags ) override;
 218     virtual void            invert( sal_uInt32 nPoints, const SalPoint* pPtAry, SalInvert nFlags ) override;
 219
 220     virtual bool        drawEPS( long nX, long nY, long nWidth, long nHeight, void* pPtr, sal_uLong nSize ) override;
 221
 222     virtual SystemGraphicsData GetGraphicsData() const override;
 223
 224 #if ENABLE_CAIRO_CANVAS
 225     virtual bool            SupportsCairo() const override;
 226     virtual cairo::SurfaceSharedPtr CreateSurface(const cairo::CairoSurfaceSharedPtr& rSurface) const override;
 227     virtual cairo::SurfaceSharedPtr CreateSurface(const OutputDevice& rRefDevice, int x, int y, int width, int height) const override;
 228     virtual cairo::SurfaceSharedPtr CreateBitmapSurface(const OutputDevice& rRefDevice, const BitmapSystemData& rData, const Size& rSize) const override;
 229     virtual css::uno::Any   GetNativeSurfaceHandle(cairo::SurfaceSharedPtr& rSurface, const basegfx::B2ISize& rSize) const override;
 230     virtual SystemFontData  GetSysFontData( int nFallbacklevel ) const override;
 231 #endif // ENABLE_CAIRO_CANVAS
 232
 233     cairo_t*                getCairoContext(bool bXorModeAllowed) const;
 234     void                    releaseCairoContext(cairo_t* cr, bool bXorModeAllowed, const basegfx::B2DRange& rExtents) const;
 235     static cairo_surface_t* createCairoSurface(const BitmapBuffer *pBuffer);
 236     double                  getScale() const { return m_fScale; }
 237     void                    clipRegion(cairo_t* cr);
 238 };
 239
 240 #endif
 241
 242 #endif // INCLUDED_VCL_INC_HEADLESS_SVPGDI_HXX
 243
 244 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */