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| -rw-r--r-- | vcl/inc/headless/svpgdi.hxx | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/vcl/inc/headless/svpgdi.hxx b/vcl/inc/headless/svpgdi.hxx new file mode 100644 index 000000000..3d1617d07 --- /dev/null +++ b/vcl/inc/headless/svpgdi.hxx @@ -0,0 +1,287 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_VCL_INC_HEADLESS_SVPGDI_HXX +#define INCLUDED_VCL_INC_HEADLESS_SVPGDI_HXX + +#ifdef IOS +#error This file is not for iOS +#endif + +#include <config_features.h> + +#include <osl/endian.h> +#include <vcl/sysdata.hxx> +#include <config_cairo_canvas.h> + +#include <salgdi.hxx> +#include <sallayout.hxx> +#include "svpcairotextrender.hxx" +#include <impfontmetricdata.hxx> + +#include <cairo.h> + +//Using formats that match cairo's formats. For android we patch cairo, +//which is internal in that case, to swap the rgb components so that +//cairo then matches the OpenGL GL_RGBA format so we can use it there +//where we don't have GL_BGRA support. +// SVP_24BIT_FORMAT is used to store 24-bit images in 3-byte pixels to conserve memory. +#if defined(ANDROID) && !HAVE_FEATURE_ANDROID_LOK +# define SVP_24BIT_FORMAT (ScanlineFormat::N24BitTcRgb | ScanlineFormat::TopDown) +# define SVP_CAIRO_FORMAT (ScanlineFormat::N32BitTcRgba | ScanlineFormat::TopDown) +# define SVP_CAIRO_BLUE 1 +# define SVP_CAIRO_GREEN 2 +# define SVP_CAIRO_RED 0 +# define SVP_CAIRO_ALPHA 3 +#elif defined OSL_BIGENDIAN +# define SVP_24BIT_FORMAT (ScanlineFormat::N24BitTcRgb | ScanlineFormat::TopDown) +# define SVP_CAIRO_FORMAT (ScanlineFormat::N32BitTcArgb | ScanlineFormat::TopDown) +# define SVP_CAIRO_BLUE 3 +# define SVP_CAIRO_GREEN 2 +# define SVP_CAIRO_RED 1 +# define SVP_CAIRO_ALPHA 0 +#else +# define SVP_24BIT_FORMAT (ScanlineFormat::N24BitTcBgr | ScanlineFormat::TopDown) +# define SVP_CAIRO_FORMAT (ScanlineFormat::N32BitTcBgra | ScanlineFormat::TopDown) +# define SVP_CAIRO_BLUE 0 +# define SVP_CAIRO_GREEN 1 +# define SVP_CAIRO_RED 2 +# define SVP_CAIRO_ALPHA 3 +#endif + +struct BitmapBuffer; +class FreetypeFont; +typedef struct _cairo cairo_t; +typedef struct _cairo_surface cairo_surface_t; +typedef struct _cairo_user_data_key cairo_user_data_key_t; + +VCL_DLLPUBLIC void dl_cairo_surface_set_device_scale(cairo_surface_t *surface, double x_scale, double y_scale); +VCL_DLLPUBLIC void dl_cairo_surface_get_device_scale(cairo_surface_t *surface, double *x_scale, double *y_scale); + +enum class PaintMode { Over, Xor }; + +typedef void (*damageHandler)(void* handle, + sal_Int32 nExtentsX, sal_Int32 nExtentsY, + sal_Int32 nExtentsWidth, sal_Int32 nExtentsHeight); + +struct VCL_DLLPUBLIC DamageHandler +{ + void *handle; + damageHandler damaged; +}; + +class VCL_DLLPUBLIC SvpSalGraphics : public SalGraphics +{ + cairo_surface_t* m_pSurface; + basegfx::B2IVector m_aFrameSize; + double m_fScale; + Color m_aLineColor; + Color m_aFillColor; + PaintMode m_ePaintMode; + +public: + void setSurface(cairo_surface_t* pSurface, const basegfx::B2IVector& rSize); + cairo_surface_t* getSurface() const { return m_pSurface; } + static cairo_user_data_key_t* getDamageKey(); + + static void clipRegion(cairo_t* cr, const vcl::Region& rClipRegion); + + // need this static version of ::drawPolyLine for usage from + // vcl/unx/generic/gdi/salgdi.cxx. It gets wrapped by + // ::drawPolyLine with some added parameters (see there) + static bool drawPolyLine( + cairo_t* cr, + basegfx::B2DRange* pExtents, + const Color& rLineColor, + bool bAntiAliasB2DDraw, + const basegfx::B2DHomMatrix& rObjectToDevice, + const basegfx::B2DPolygon& rPolyLine, + double fTransparency, + double fLineWidth, + const std::vector< double >* pStroke, // MM01 + basegfx::B2DLineJoin eLineJoin, + css::drawing::LineCap eLineCap, + double fMiterMinimumAngle, + bool bPixelSnapHairline); + + void copySource(const SalTwoRect& rTR, cairo_surface_t* source); + void copyWithOperator(const SalTwoRect& rTR, cairo_surface_t* source, + cairo_operator_t eOp = CAIRO_OPERATOR_SOURCE); + +private: + void invert(const basegfx::B2DPolygon &rPoly, SalInvert nFlags); + void applyColor(cairo_t *cr, Color rColor, double fTransparency = 0.0); + +protected: + vcl::Region m_aClipRegion; + SvpCairoTextRender m_aTextRenderImpl; + +protected: + virtual bool blendBitmap( const SalTwoRect&, const SalBitmap& rBitmap ) override; + virtual bool blendAlphaBitmap( const SalTwoRect&, + const SalBitmap& rSrcBitmap, + const SalBitmap& rMaskBitmap, + const SalBitmap& rAlphaBitmap ) override; + virtual bool drawAlphaBitmap( const SalTwoRect&, const SalBitmap& rSourceBitmap, const SalBitmap& rAlphaBitmap ) override; + virtual bool drawTransformedBitmap( + const basegfx::B2DPoint& rNull, + const basegfx::B2DPoint& rX, + const basegfx::B2DPoint& rY, + const SalBitmap& rSourceBitmap, + const SalBitmap* pAlphaBitmap) override; + virtual bool drawAlphaRect( long nX, long nY, long nWidth, long nHeight, sal_uInt8 nTransparency ) override; + + cairo_t* createTmpCompatibleCairoContext() const; + +public: + SvpSalGraphics(); + virtual ~SvpSalGraphics() override; + + virtual SalGraphicsImpl* GetImpl() const override { return nullptr; }; + virtual void GetResolution( sal_Int32& rDPIX, sal_Int32& rDPIY ) override; + virtual sal_uInt16 GetBitCount() const override; + virtual long GetGraphicsWidth() const override; + + virtual void ResetClipRegion() override; + virtual bool setClipRegion( const vcl::Region& ) override; + + virtual void SetLineColor() override; + virtual void SetLineColor( Color nColor ) override; + virtual void SetFillColor() override; + virtual void SetFillColor( Color nColor ) override; + + virtual void SetXORMode( bool bSet, bool ) override; + + virtual void SetROPLineColor( SalROPColor nROPColor ) override; + virtual void SetROPFillColor( SalROPColor nROPColor ) override; + + virtual void SetTextColor( Color nColor ) override; + virtual void SetFont(LogicalFontInstance*, int nFallbackLevel) override; + virtual void GetFontMetric( ImplFontMetricDataRef&, int nFallbackLevel ) override; + virtual FontCharMapRef GetFontCharMap() const override; + virtual bool GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const override; + virtual void GetDevFontList( PhysicalFontCollection* ) override; + virtual void ClearDevFontCache() override; + virtual bool AddTempDevFont( PhysicalFontCollection*, const OUString& rFileURL, const OUString& rFontName ) override; + virtual bool CreateFontSubset( const OUString& rToFile, + const PhysicalFontFace*, + const sal_GlyphId* pGlyphIds, + const sal_uInt8* pEncoding, + sal_Int32* pWidths, + int nGlyphs, + FontSubsetInfo& rInfo + ) override; + virtual const void* GetEmbedFontData(const PhysicalFontFace*, long* pDataLen) override; + virtual void FreeEmbedFontData( const void* pData, long nDataLen ) override; + virtual void GetGlyphWidths( const PhysicalFontFace*, + bool bVertical, + std::vector< sal_Int32 >& rWidths, + Ucs2UIntMap& rUnicodeEnc ) override; + virtual std::unique_ptr<GenericSalLayout> + GetTextLayout(int nFallbackLevel) override; + virtual void DrawTextLayout( const GenericSalLayout& ) override; + virtual bool supportsOperation( OutDevSupportType ) const override; + virtual void drawPixel( long nX, long nY ) override; + virtual void drawPixel( long nX, long nY, Color nColor ) override; + virtual void drawLine( long nX1, long nY1, long nX2, long nY2 ) override; + virtual void drawRect( long nX, long nY, long nWidth, long nHeight ) override; + + virtual bool drawPolyPolygon( + const basegfx::B2DHomMatrix& rObjectToDevice, + const basegfx::B2DPolyPolygon&, + double fTransparency ) override; + + virtual bool drawPolyLine( + const basegfx::B2DHomMatrix& rObjectToDevice, + const basegfx::B2DPolygon&, + double fTransparency, + double fLineWidth, + const std::vector< double >* pStroke, // MM01 + basegfx::B2DLineJoin, + css::drawing::LineCap, + double fMiterMinimumAngle, + bool bPixelSnapHairline) override; + virtual void drawPolyLine( sal_uInt32 nPoints, const SalPoint* pPtAry ) override; + virtual void drawPolygon( sal_uInt32 nPoints, const SalPoint* pPtAry ) override; + virtual void drawPolyPolygon( sal_uInt32 nPoly, + const sal_uInt32* pPoints, + PCONSTSALPOINT* pPtAry ) override; + virtual bool drawPolyLineBezier( sal_uInt32 nPoints, + const SalPoint* pPtAry, + const PolyFlags* pFlgAry ) override; + virtual bool drawPolygonBezier( sal_uInt32 nPoints, + const SalPoint* pPtAry, + const PolyFlags* pFlgAry ) override; + virtual bool drawPolyPolygonBezier( sal_uInt32 nPoly, + const sal_uInt32* pPoints, + const SalPoint* const* pPtAry, + const PolyFlags* const* pFlgAry ) override; + virtual bool drawGradient( const tools::PolyPolygon&, const Gradient& ) override { return false; }; + + virtual bool implDrawGradient(basegfx::B2DPolyPolygon const & rPolyPolygon, SalGradient const & rGradient) override; + + virtual void copyArea( long nDestX, + long nDestY, + long nSrcX, + long nSrcY, + long nSrcWidth, + long nSrcHeight, + bool bWindowInvalidate) override; + virtual void copyBits( const SalTwoRect& rPosAry, + SalGraphics* pSrcGraphics ) override; + virtual void drawBitmap( const SalTwoRect& rPosAry, + const SalBitmap& rSalBitmap ) override; + void drawBitmap( const SalTwoRect& rPosAry, + const BitmapBuffer* pBuffer, + cairo_operator_t eOp ); + virtual void drawBitmap( const SalTwoRect& rPosAry, + const SalBitmap& rSalBitmap, + const SalBitmap& rTransparentBitmap ) override; + virtual void drawMask( const SalTwoRect& rPosAry, + const SalBitmap& rSalBitmap, + Color nMaskColor ) override; + virtual std::shared_ptr<SalBitmap> getBitmap( long nX, long nY, long nWidth, long nHeight ) override; + virtual Color getPixel( long nX, long nY ) override; + virtual void invert( long nX, long nY, long nWidth, long nHeight, SalInvert nFlags ) override; + virtual void invert( sal_uInt32 nPoints, const SalPoint* pPtAry, SalInvert nFlags ) override; + + virtual bool drawEPS( long nX, long nY, long nWidth, long nHeight, void* pPtr, sal_uInt32 nSize ) override; + + virtual SystemGraphicsData GetGraphicsData() const override; + + virtual OUString getRenderBackendName() const override { return "svp"; } + +#if ENABLE_CAIRO_CANVAS + virtual bool SupportsCairo() const override; + virtual cairo::SurfaceSharedPtr CreateSurface(const cairo::CairoSurfaceSharedPtr& rSurface) const override; + virtual cairo::SurfaceSharedPtr CreateSurface(const OutputDevice& rRefDevice, int x, int y, int width, int height) const override; + virtual cairo::SurfaceSharedPtr CreateBitmapSurface(const OutputDevice& rRefDevice, const BitmapSystemData& rData, const Size& rSize) const override; + virtual css::uno::Any GetNativeSurfaceHandle(cairo::SurfaceSharedPtr& rSurface, const basegfx::B2ISize& rSize) const override; + virtual SystemFontData GetSysFontData( int nFallbacklevel ) const override; +#endif // ENABLE_CAIRO_CANVAS + + cairo_t* getCairoContext(bool bXorModeAllowed) const; + void releaseCairoContext(cairo_t* cr, bool bXorModeAllowed, const basegfx::B2DRange& rExtents) const; + static cairo_surface_t* createCairoSurface(const BitmapBuffer *pBuffer); + void clipRegion(cairo_t* cr); +}; + +#endif // INCLUDED_VCL_INC_HEADLESS_SVPGDI_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |