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Diffstat (limited to 'vcl/unx/generic/gdi/salgdi.cxx')
| -rw-r--r-- | vcl/unx/generic/gdi/salgdi.cxx | 482 |
1 files changed, 482 insertions, 0 deletions
diff --git a/vcl/unx/generic/gdi/salgdi.cxx b/vcl/unx/generic/gdi/salgdi.cxx new file mode 100644 index 000000000..d6eecfecb --- /dev/null +++ b/vcl/unx/generic/gdi/salgdi.cxx @@ -0,0 +1,482 @@ +/* -*- 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 <config_features.h> +#include <vcl/skia/SkiaHelper.hxx> +#if HAVE_FEATURE_SKIA +#include <skia/x11/gdiimpl.hxx> +#include <skia/x11/textrender.hxx> +#endif + +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/extensions/Xrender.h> + + +#include <basegfx/polygon/b2dpolygon.hxx> +#include <basegfx/polygon/b2dpolypolygon.hxx> +#include <basegfx/polygon/b2dpolypolygontools.hxx> +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <basegfx/curve/b2dcubicbezier.hxx> + +#include <headless/svpgdi.hxx> + +#include <vcl/sysdata.hxx> +#include <vcl/virdev.hxx> +#include <sal/log.hxx> + +#include <unx/salunx.h> +#include <unx/saldisp.hxx> +#include <unx/salgdi.h> +#include <unx/x11/xlimits.hxx> + +#include <salframe.hxx> +#include <salgdiimpl.hxx> +#include <textrender.hxx> +#include <salvd.hxx> +#include "gdiimpl.hxx" + +#include <unx/x11/x11cairotextrender.hxx> +#include <unx/x11/xrender_peer.hxx> +#include "cairo_xlib_cairo.hxx" +#include <cairo-xlib.h> + +#if ENABLE_CAIRO_CANVAS +#include "X11CairoSalGraphicsImpl.hxx" +#endif + + +// X11Common + +X11Common::X11Common() + : m_hDrawable(None) + , m_pColormap(nullptr) + , m_pExternalSurface(nullptr) +{} + +cairo_t* X11Common::getCairoContext() +{ + if (m_pExternalSurface) + return cairo_create(m_pExternalSurface); + + cairo_surface_t* surface = cairo_xlib_surface_create(GetXDisplay(), m_hDrawable, GetVisual().visual, SAL_MAX_INT16, SAL_MAX_INT16); + + cairo_t *cr = cairo_create(surface); + cairo_surface_destroy(surface); + + return cr; +} + +void X11Common::releaseCairoContext(cairo_t* cr) +{ + cairo_destroy(cr); +} + +bool X11Common::SupportsCairo() const +{ + static bool bSupportsCairo = [this] { + Display *pDisplay = GetXDisplay(); + int nDummy; + return XQueryExtension(pDisplay, "RENDER", &nDummy, &nDummy, &nDummy); + }(); + return bSupportsCairo; +} + +// X11SalGraphics + +X11SalGraphics::X11SalGraphics(): + m_pFrame(nullptr), + m_pVDev(nullptr), + m_nXScreen( 0 ), + m_pXRenderFormat(nullptr), + m_aXRenderPicture(0), + mpClipRegion(nullptr), + hBrush_(None), + bWindow_(false), + bVirDev_(false) +{ +#if HAVE_FEATURE_SKIA + if (SkiaHelper::isVCLSkiaEnabled()) + { + mxImpl.reset(new X11SkiaSalGraphicsImpl(*this)); + mxTextRenderImpl.reset(new SkiaTextRender); + } + else +#endif + { + mxTextRenderImpl.reset(new X11CairoTextRender(*this)); +#if ENABLE_CAIRO_CANVAS + mxImpl.reset(new X11CairoSalGraphicsImpl(*this, maX11Common)); +#else + mxImpl.reset(new X11SalGraphicsImpl(*this)); +#endif + } +} + +X11SalGraphics::~X11SalGraphics() COVERITY_NOEXCEPT_FALSE +{ + DeInit(); + ReleaseFonts(); + freeResources(); +} + +void X11SalGraphics::freeResources() +{ + Display *pDisplay = GetXDisplay(); + + if( mpClipRegion ) + { + XDestroyRegion( mpClipRegion ); + mpClipRegion = nullptr; + } + + mxImpl->freeResources(); + + if( hBrush_ ) + { + XFreePixmap( pDisplay, hBrush_ ); + hBrush_ = None; + } + if( m_pDeleteColormap ) + { + m_pDeleteColormap.reset(); + maX11Common.m_pColormap = nullptr; + } + if( m_aXRenderPicture ) + { + XRenderPeer::GetInstance().FreePicture( m_aXRenderPicture ); + m_aXRenderPicture = 0; + } +} + +SalGraphicsImpl* X11SalGraphics::GetImpl() const +{ + return mxImpl.get(); +} + +void X11SalGraphics::SetDrawable(Drawable aDrawable, cairo_surface_t* pExternalSurface, SalX11Screen nXScreen) +{ + maX11Common.m_pExternalSurface = pExternalSurface; + + // shortcut if nothing changed + if( maX11Common.m_hDrawable == aDrawable ) + return; + + // free screen specific resources if needed + if( nXScreen != m_nXScreen ) + { + freeResources(); + maX11Common.m_pColormap = &vcl_sal::getSalDisplay(GetGenericUnixSalData())->GetColormap( nXScreen ); + m_nXScreen = nXScreen; + } + + maX11Common.m_hDrawable = aDrawable; + SetXRenderFormat( nullptr ); + if( m_aXRenderPicture ) + { + XRenderPeer::GetInstance().FreePicture( m_aXRenderPicture ); + m_aXRenderPicture = 0; + } +} + +void X11SalGraphics::Init( SalFrame *pFrame, Drawable aTarget, + SalX11Screen nXScreen ) +{ + maX11Common.m_pColormap = &vcl_sal::getSalDisplay(GetGenericUnixSalData())->GetColormap(nXScreen); + m_nXScreen = nXScreen; + + m_pFrame = pFrame; + m_pVDev = nullptr; + + bWindow_ = true; + bVirDev_ = false; + + SetDrawable(aTarget, nullptr, nXScreen); + mxImpl->Init(); +} + +void X11SalGraphics::DeInit() +{ + mxImpl->DeInit(); + SetDrawable(None, nullptr, m_nXScreen); +} + +void X11SalGraphics::SetClipRegion( GC pGC, Region pXReg ) const +{ + Display *pDisplay = GetXDisplay(); + + int n = 0; + Region Regions[3]; + + if( mpClipRegion ) + Regions[n++] = mpClipRegion; + + if( pXReg && !XEmptyRegion( pXReg ) ) + Regions[n++] = pXReg; + + if( 0 == n ) + XSetClipMask( pDisplay, pGC, None ); + else if( 1 == n ) + XSetRegion( pDisplay, pGC, Regions[0] ); + else + { + Region pTmpRegion = XCreateRegion(); + XIntersectRegion( Regions[0], Regions[1], pTmpRegion ); + + XSetRegion( pDisplay, pGC, pTmpRegion ); + XDestroyRegion( pTmpRegion ); + } +} + +// Calculate a dither-pixmap and make a brush of it +#define P_DELTA 51 +#define DMAP( v, m ) ((v % P_DELTA) > m ? (v / P_DELTA) + 1 : (v / P_DELTA)) + +bool X11SalGraphics::GetDitherPixmap( Color nColor ) +{ + static const short nOrdDither8Bit[ 8 ][ 8 ] = + { + { 0, 38, 9, 48, 2, 40, 12, 50}, + {25, 12, 35, 22, 28, 15, 37, 24}, + { 6, 44, 3, 41, 8, 47, 5, 44}, + {32, 19, 28, 16, 34, 21, 31, 18}, + { 1, 40, 11, 49, 0, 39, 10, 48}, + {27, 14, 36, 24, 26, 13, 36, 23}, + { 8, 46, 4, 43, 7, 45, 4, 42}, + {33, 20, 30, 17, 32, 20, 29, 16} + }; + + // test for correct depth (8bit) + if( GetColormap().GetVisual().GetDepth() != 8 ) + return false; + + char pBits[64]; + char *pBitsPtr = pBits; + + // Set the palette-entries for the dithering tile + sal_uInt8 nColorRed = nColor.GetRed(); + sal_uInt8 nColorGreen = nColor.GetGreen(); + sal_uInt8 nColorBlue = nColor.GetBlue(); + + for(auto & nY : nOrdDither8Bit) + { + for( int nX = 0; nX < 8; nX++ ) + { + short nMagic = nY[nX]; + sal_uInt8 nR = P_DELTA * DMAP( nColorRed, nMagic ); + sal_uInt8 nG = P_DELTA * DMAP( nColorGreen, nMagic ); + sal_uInt8 nB = P_DELTA * DMAP( nColorBlue, nMagic ); + + *pBitsPtr++ = GetColormap().GetPixel( Color( nR, nG, nB ) ); + } + } + + // create the tile as ximage and an according pixmap -> caching + XImage *pImage = XCreateImage( GetXDisplay(), + GetColormap().GetXVisual(), + 8, + ZPixmap, + 0, // offset + pBits, // data + 8, 8, // width & height + 8, // bitmap_pad + 0 ); // (default) bytes_per_line + + if( !hBrush_ ) + hBrush_ = limitXCreatePixmap( GetXDisplay(), GetDrawable(), 8, 8, 8 ); + + // put the ximage to the pixmap + XPutImage( GetXDisplay(), + hBrush_, + GetDisplay()->GetCopyGC( m_nXScreen ), + pImage, + 0, 0, // Source + 0, 0, // Destination + 8, 8 ); // width & height + + // destroy image-frame but not palette-data + pImage->data = nullptr; + XDestroyImage( pImage ); + + return true; +} + +void X11SalGraphics::GetResolution( sal_Int32 &rDPIX, sal_Int32 &rDPIY ) // const +{ + char* pForceDpi; + if ((pForceDpi = getenv("SAL_FORCEDPI"))) + { + OString sForceDPI(pForceDpi); + rDPIX = rDPIY = sForceDPI.toInt32(); + return; + } + + const SalDisplay *pDisplay = GetDisplay(); + if (!pDisplay) + { + SAL_WARN( "vcl", "Null display"); + rDPIX = rDPIY = 96; + return; + } + + Pair dpi = pDisplay->GetResolution(); + rDPIX = dpi.A(); + rDPIY = dpi.B(); + + if ( rDPIY > 200 ) + { + rDPIX = Divide( rDPIX * 200, rDPIY ); + rDPIY = 200; + } + + // #i12705# equalize x- and y-resolution if they are close enough + if( rDPIX == rDPIY ) + return; + + // different x- and y- resolutions are usually artifacts of + // a wrongly calculated screen size. +#ifdef DEBUG + SAL_INFO("vcl.gdi", "Forcing Resolution from " + << std::hex << rDPIX + << std::dec << rDPIX + << " to " + << std::hex << rDPIY + << std::dec << rDPIY); +#endif + rDPIX = rDPIY; // y-resolution is more trustworthy +} + +XRenderPictFormat* X11SalGraphics::GetXRenderFormat() const +{ + if( m_pXRenderFormat == nullptr ) + m_pXRenderFormat = XRenderPeer::GetInstance().FindVisualFormat( GetVisual().visual ); + return m_pXRenderFormat; +} + +SystemGraphicsData X11SalGraphics::GetGraphicsData() const +{ + SystemGraphicsData aRes; + + aRes.nSize = sizeof(aRes); + aRes.pDisplay = GetXDisplay(); + aRes.hDrawable = maX11Common.m_hDrawable; + aRes.pVisual = GetVisual().visual; + aRes.nScreen = m_nXScreen.getXScreen(); + aRes.pXRenderFormat = m_pXRenderFormat; + return aRes; +} + +void X11SalGraphics::Flush() +{ + if( X11GraphicsImpl* x11Impl = dynamic_cast< X11GraphicsImpl* >( mxImpl.get())) + x11Impl->Flush(); +} + +#if ENABLE_CAIRO_CANVAS + +bool X11SalGraphics::SupportsCairo() const +{ + return maX11Common.SupportsCairo(); +} + +cairo::SurfaceSharedPtr X11SalGraphics::CreateSurface(const cairo::CairoSurfaceSharedPtr& rSurface) const +{ + return std::make_shared<cairo::X11Surface>(rSurface); +} + +namespace +{ + cairo::X11SysData getSysData( const vcl::Window& rWindow ) + { + const SystemEnvData* pSysData = rWindow.GetSystemData(); + + if( !pSysData ) + return cairo::X11SysData(); + else + return cairo::X11SysData(*pSysData, rWindow.ImplGetFrame()); + } + + cairo::X11SysData getSysData( const VirtualDevice& rVirDev ) + { + return cairo::X11SysData( rVirDev.GetSystemGfxData() ); + } +} + +cairo::SurfaceSharedPtr X11SalGraphics::CreateSurface( const OutputDevice& rRefDevice, + int x, int y, int width, int height ) const +{ + if( rRefDevice.GetOutDevType() == OUTDEV_WINDOW ) + return std::make_shared<cairo::X11Surface>(getSysData(*rRefDevice.GetOwnerWindow()), + x,y,width,height); + if( rRefDevice.IsVirtual() ) + return std::make_shared<cairo::X11Surface>(getSysData(static_cast<const VirtualDevice&>(rRefDevice)), + x,y,width,height); + return cairo::SurfaceSharedPtr(); +} + +cairo::SurfaceSharedPtr X11SalGraphics::CreateBitmapSurface( const OutputDevice& rRefDevice, + const BitmapSystemData& rData, + const Size& rSize ) const +{ + SAL_INFO("vcl", "requested size: " << rSize.Width() << " x " << rSize.Height() + << " available size: " << rData.mnWidth << " x " + << rData.mnHeight); + if ( rData.mnWidth == rSize.Width() && rData.mnHeight == rSize.Height() ) + { + if( rRefDevice.GetOutDevType() == OUTDEV_WINDOW ) + return std::make_shared<cairo::X11Surface>(getSysData(*rRefDevice.GetOwnerWindow()), rData ); + else if( rRefDevice.IsVirtual() ) + return std::make_shared<cairo::X11Surface>(getSysData(static_cast<const VirtualDevice&>(rRefDevice)), rData ); + } + + return cairo::SurfaceSharedPtr(); +} + +css::uno::Any X11SalGraphics::GetNativeSurfaceHandle(cairo::SurfaceSharedPtr& rSurface, const basegfx::B2ISize& /*rSize*/) const +{ + cairo::X11Surface& rXlibSurface=dynamic_cast<cairo::X11Surface&>(*rSurface); + css::uno::Sequence< css::uno::Any > args{ + css::uno::Any(false), // do not call XFreePixmap on it + css::uno::Any(sal_Int64(rXlibSurface.getPixmap()->mhDrawable)), + css::uno::Any(sal_Int32( rXlibSurface.getDepth() )) + }; + return css::uno::Any(args); +} + +#endif // ENABLE_CAIRO_CANVAS + +SalGeometryProvider *X11SalGraphics::GetGeometryProvider() const +{ + if (m_pFrame) + return static_cast< SalGeometryProvider * >(m_pFrame); + else + return static_cast< SalGeometryProvider * >(m_pVDev); +} + +cairo_t* X11SalGraphics::getCairoContext() +{ + return maX11Common.getCairoContext(); +} + +void X11SalGraphics::releaseCairoContext(cairo_t* cr) +{ + X11Common::releaseCairoContext(cr); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |