canvas/source/directx/dx_devicehelper.cxx

   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 #include <sal/config.h>
  21
  22 #include <memory>
  23
  24 #include <basegfx/utils/canvastools.hxx>
  25 #include <com/sun/star/lang/NoSupportException.hpp>
  26 #include <comphelper/diagnose_ex.hxx>
  27 #include <vcl/canvastools.hxx>
  28 #include <vcl/outdev.hxx>
  29 #include <vcl/sysdata.hxx>
  30
  31 #include <canvas/canvastools.hxx>
  32
  33 #include "dx_canvasbitmap.hxx"
  34 #include "dx_devicehelper.hxx"
  35 #include "dx_linepolypolygon.hxx"
  36 #include "dx_spritecanvas.hxx"
  37 #include "dx_winstuff.hxx"
  38
  39 using namespace ::com::sun::star;
  40
  41 namespace dxcanvas
  42 {
  43     DeviceHelper::DeviceHelper() :
  44         mpDevice( nullptr ),
  45         mnHDC(nullptr),
  46         mpOutDev(nullptr)
  47     {
  48     }
  49
  50     DeviceHelper::~DeviceHelper()
  51     {
  52     }
  53
  54     void DeviceHelper::init( HDC hdc, OutputDevice* pOutDev,
  55                              rendering::XGraphicDevice& rDevice )
  56     {
  57         mnHDC    = hdc;
  58         mpDevice = &rDevice;
  59         mpOutDev = pOutDev;
  60     }
  61
  62     void DeviceHelper::disposing()
  63     {
  64         // release all references
  65         mnHDC = nullptr;
  66         mpDevice = nullptr;
  67         mpOutDev = nullptr;
  68     }
  69
  70     geometry::RealSize2D DeviceHelper::getPhysicalResolution()
  71     {
  72         if( !mpDevice )
  73             return ::canvas::tools::createInfiniteSize2D(); // we're disposed
  74
  75         HDC hDC = getHDC();
  76         ENSURE_OR_THROW( hDC,
  77                           "DeviceHelper::getPhysicalResolution(): cannot retrieve HDC from window" );
  78
  79         const int nHorzRes( GetDeviceCaps( hDC,
  80                                            LOGPIXELSX ) );
  81         const int nVertRes( GetDeviceCaps( hDC,
  82                                            LOGPIXELSY ) );
  83
  84         return geometry::RealSize2D( nHorzRes*25.4,
  85                                      nVertRes*25.4 );
  86     }
  87
  88     geometry::RealSize2D DeviceHelper::getPhysicalSize()
  89     {
  90         if( !mpDevice )
  91             return ::canvas::tools::createInfiniteSize2D(); // we're disposed
  92
  93         HDC hDC=getHDC();
  94         ENSURE_OR_THROW( hDC,
  95                           "DeviceHelper::getPhysicalSize(): cannot retrieve HDC from window" );
  96
  97         const int nHorzSize( GetDeviceCaps( hDC,
  98                                             HORZSIZE ) );
  99         const int nVertSize( GetDeviceCaps( hDC,
 100                                             VERTSIZE ) );
 101
 102         return geometry::RealSize2D( nHorzSize,
 103                                      nVertSize );
 104     }
 105
 106     uno::Reference< rendering::XLinePolyPolygon2D > DeviceHelper::createCompatibleLinePolyPolygon(
 107         const uno::Reference< rendering::XGraphicDevice >&              /*rDevice*/,
 108         const uno::Sequence< uno::Sequence< geometry::RealPoint2D > >&  points )
 109     {
 110         if( !mpDevice )
 111             return uno::Reference< rendering::XLinePolyPolygon2D >(); // we're disposed
 112
 113         return uno::Reference< rendering::XLinePolyPolygon2D >(
 114             new LinePolyPolygon(
 115                 ::basegfx::unotools::polyPolygonFromPoint2DSequenceSequence( points ) ) );
 116     }
 117
 118     uno::Reference< rendering::XBezierPolyPolygon2D > DeviceHelper::createCompatibleBezierPolyPolygon(
 119         const uno::Reference< rendering::XGraphicDevice >&                      /*rDevice*/,
 120         const uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > >&  points )
 121     {
 122         if( !mpDevice )
 123             return uno::Reference< rendering::XBezierPolyPolygon2D >(); // we're disposed
 124
 125         return uno::Reference< rendering::XBezierPolyPolygon2D >(
 126             new LinePolyPolygon(
 127                 ::basegfx::unotools::polyPolygonFromBezier2DSequenceSequence( points ) ) );
 128     }
 129
 130     uno::Reference< rendering::XBitmap > DeviceHelper::createCompatibleBitmap(
 131         const uno::Reference< rendering::XGraphicDevice >&  /*rDevice*/,
 132         const geometry::IntegerSize2D&                      size )
 133     {
 134         if( !mpDevice )
 135             return uno::Reference< rendering::XBitmap >(); // we're disposed
 136
 137         DXBitmapSharedPtr pBitmap = std::make_shared<DXBitmap>(
 138                 ::basegfx::unotools::b2ISizeFromIntegerSize2D(size),
 139                 false);
 140
 141         // create a 24bit RGB system memory surface
 142         return uno::Reference< rendering::XBitmap >(new CanvasBitmap(pBitmap,mpDevice));
 143     }
 144
 145     uno::Reference< rendering::XVolatileBitmap > DeviceHelper::createVolatileBitmap(
 146         const uno::Reference< rendering::XGraphicDevice >&  /*rDevice*/,
 147         const geometry::IntegerSize2D&                      /*size*/ )
 148     {
 149         return uno::Reference< rendering::XVolatileBitmap >();
 150     }
 151
 152     uno::Reference< rendering::XBitmap > DeviceHelper::createCompatibleAlphaBitmap(
 153         const uno::Reference< rendering::XGraphicDevice >&  /*rDevice*/,
 154         const geometry::IntegerSize2D&                      size )
 155     {
 156         if( !mpDevice )
 157             return uno::Reference< rendering::XBitmap >(); // we're disposed
 158
 159         DXBitmapSharedPtr pBitmap = std::make_shared<DXBitmap>(
 160                 ::basegfx::unotools::b2ISizeFromIntegerSize2D(size),
 161                 true);
 162
 163         // create a 32bit ARGB system memory surface
 164         return uno::Reference< rendering::XBitmap >(new CanvasBitmap(pBitmap,mpDevice));
 165     }
 166
 167     uno::Reference< rendering::XVolatileBitmap > DeviceHelper::createVolatileAlphaBitmap(
 168         const uno::Reference< rendering::XGraphicDevice >&  /*rDevice*/,
 169         const geometry::IntegerSize2D&                      /*size*/ )
 170     {
 171         return uno::Reference< rendering::XVolatileBitmap >();
 172     }
 173
 174     uno::Any DeviceHelper::isAccelerated() const
 175     {
 176         return css::uno::Any(false);
 177     }
 178
 179     uno::Any DeviceHelper::getDeviceHandle() const
 180     {
 181         return uno::Any( reinterpret_cast< sal_Int64 >(mpOutDev.get()) );
 182     }
 183
 184     uno::Any DeviceHelper::getSurfaceHandle() const
 185     {
 186         // TODO(F1): expose DirectDraw object
 187         //return mpBackBuffer->getBitmap().get();
 188         return uno::Any();
 189     }
 190
 191     uno::Reference<rendering::XColorSpace> DeviceHelper::getColorSpace() const
 192     {
 193         // always the same
 194         static uno::Reference<rendering::XColorSpace> theSpace = vcl::unotools::createStandardColorSpace();
 195         return theSpace;
 196     }
 197 }
 198
 199 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */