canvas/source/directx/dx_bitmap.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_canvas.hxx"
  33
  34 #include "dx_bitmap.hxx"
  35 #include "dx_graphicsprovider.hxx"
  36 #include "dx_impltools.hxx"
  37
  38 #include <canvas/debug.hxx>
  39 #include <tools/diagnose_ex.h>
  40
  41 #include <basegfx/matrix/b2dhommatrix.hxx>
  42 #include <basegfx/range/b2irange.hxx>
  43
  44 #if defined(DX_DEBUG_IMAGES)
  45 # if OSL_DEBUG_LEVEL > 0
  46 #  include <imdebug.h>
  47 #  undef min
  48 #  undef max
  49 # endif
  50 #endif
  51
  52 using namespace ::com::sun::star;
  53
  54 namespace dxcanvas
  55 {
  56     //////////////////////////////////////////////////////////////////////////////////
  57     // DXBitmap::DXBitmap
  58     //////////////////////////////////////////////////////////////////////////////////
  59
  60     DXBitmap::DXBitmap( const BitmapSharedPtr& rBitmap,
  61                         bool                               bWithAlpha ) :
  62         mpGdiPlusUser( GDIPlusUser::createInstance() ),
  63         maSize(rBitmap->GetWidth(),rBitmap->GetHeight()),
  64         mpBitmap(rBitmap),
  65         mpGraphics(tools::createGraphicsFromBitmap(mpBitmap)),
  66         mbAlpha(bWithAlpha)
  67     {
  68     }
  69
  70     DXBitmap::DXBitmap( const ::basegfx::B2IVector& rSize,
  71                         bool                                            bWithAlpha ) :
  72         mpGdiPlusUser( GDIPlusUser::createInstance() ),
  73         maSize(rSize),
  74         mpBitmap(),
  75         mpGraphics(),
  76         mbAlpha(bWithAlpha)
  77     {
  78         // create container for pixel data
  79         if(mbAlpha)
  80         {
  81             mpBitmap.reset(
  82                 new Gdiplus::Bitmap(
  83                     maSize.getX(),
  84                     maSize.getY(),
  85                     PixelFormat32bppARGB));
  86         }
  87         else
  88         {
  89             mpBitmap.reset(
  90                 new Gdiplus::Bitmap(
  91                     maSize.getX(),
  92                     maSize.getY(),
  93                     PixelFormat24bppRGB));
  94         }
  95
  96         mpGraphics.reset( tools::createGraphicsFromBitmap(mpBitmap) );
  97     }
  98
  99     BitmapSharedPtr DXBitmap::getBitmap() const
 100     {
 101         return mpBitmap;
 102     }
 103
 104     GraphicsSharedPtr DXBitmap::getGraphics()
 105     {
 106         return mpGraphics;
 107     }
 108
 109     ::basegfx::B2IVector DXBitmap::getSize() const
 110     {
 111         return maSize;
 112     }
 113
 114     bool DXBitmap::hasAlpha() const
 115     {
 116         return mbAlpha;
 117     }
 118
 119     uno::Sequence< sal_Int8 > DXBitmap::getData( rendering::IntegerBitmapLayout&     /*bitmapLayout*/,
 120                                                  const geometry::IntegerRectangle2D& rect )
 121     {
 122         uno::Sequence< sal_Int8 > aRes( (rect.X2-rect.X1)*(rect.Y2-rect.Y1)*4 ); // TODO(F1): Be format-agnostic here
 123
 124         const Gdiplus::Rect aRect( tools::gdiPlusRectFromIntegerRectangle2D( rect ) );
 125
 126         Gdiplus::BitmapData aBmpData;
 127         aBmpData.Width           = rect.X2-rect.X1;
 128         aBmpData.Height          = rect.Y2-rect.Y1;
 129         aBmpData.Stride          = 4*aBmpData.Width;
 130         aBmpData.PixelFormat = PixelFormat32bppARGB;
 131         aBmpData.Scan0           = aRes.getArray();
 132
 133         // TODO(F1): Support more pixel formats natively
 134
 135         // read data from bitmap
 136         if( Gdiplus::Ok != mpBitmap->LockBits( &aRect,
 137                                                       Gdiplus::ImageLockModeRead | Gdiplus::ImageLockModeUserInputBuf,
 138                                                       PixelFormat32bppARGB, // TODO(F1): Adapt to
 139                                                       // Graphics native
 140                                                       // format/change
 141                                                       // getMemoryLayout
 142                                                       &aBmpData ) )
 143         {
 144             // failed to lock, bail out
 145             return uno::Sequence< sal_Int8 >();
 146         }
 147
 148         mpBitmap->UnlockBits( &aBmpData );
 149
 150         return aRes;
 151     }
 152
 153     void DXBitmap::setData( const uno::Sequence< sal_Int8 >&            data,
 154                             const rendering::IntegerBitmapLayout&   /*bitmapLayout*/,
 155                             const geometry::IntegerRectangle2D&         rect )
 156     {
 157         const Gdiplus::Rect aRect( tools::gdiPlusRectFromIntegerRectangle2D( rect ) );
 158
 159         Gdiplus::BitmapData aBmpData;
 160         aBmpData.Width           = rect.X2-rect.X1;
 161         aBmpData.Height          = rect.Y2-rect.Y1;
 162         aBmpData.Stride          = 4*aBmpData.Width;
 163         aBmpData.PixelFormat = PixelFormat32bppARGB;
 164         aBmpData.Scan0           = (void*)data.getConstArray();
 165
 166         // TODO(F1): Support more pixel formats natively
 167
 168         if( Gdiplus::Ok != mpBitmap->LockBits( &aRect,
 169                                                       Gdiplus::ImageLockModeWrite | Gdiplus::ImageLockModeUserInputBuf,
 170                                                       PixelFormat32bppARGB, // TODO: Adapt to
 171                                                       // Graphics native
 172                                                       // format/change
 173                                                       // getMemoryLayout
 174                                                       &aBmpData ) )
 175         {
 176             throw uno::RuntimeException();
 177         }
 178
 179         // commit data to bitmap
 180         mpBitmap->UnlockBits( &aBmpData );
 181     }
 182
 183     void DXBitmap::setPixel( const uno::Sequence< sal_Int8 >&       color,
 184                              const rendering::IntegerBitmapLayout&  /*bitmapLayout*/,
 185                              const geometry::IntegerPoint2D&        pos )
 186     {
 187         const geometry::IntegerSize2D aSize( maSize.getX(),maSize.getY() );
 188
 189         ENSURE_ARG_OR_THROW( pos.X >= 0 && pos.X < aSize.Width,
 190                              "CanvasHelper::setPixel: X coordinate out of bounds" );
 191         ENSURE_ARG_OR_THROW( pos.Y >= 0 && pos.Y < aSize.Height,
 192                              "CanvasHelper::setPixel: Y coordinate out of bounds" );
 193         ENSURE_ARG_OR_THROW( color.getLength() > 3,
 194                              "CanvasHelper::setPixel: not enough color components" );
 195
 196         if( Gdiplus::Ok != mpBitmap->SetPixel( pos.X, pos.Y,
 197                                                       Gdiplus::Color( tools::sequenceToArgb( color ))))
 198         {
 199             throw uno::RuntimeException();
 200         }
 201     }
 202
 203     uno::Sequence< sal_Int8 > DXBitmap::getPixel( rendering::IntegerBitmapLayout&   /*bitmapLayout*/,
 204                                                   const geometry::IntegerPoint2D&   pos )
 205     {
 206         const geometry::IntegerSize2D aSize( maSize.getX(),maSize.getY() );
 207
 208         ENSURE_ARG_OR_THROW( pos.X >= 0 && pos.X < aSize.Width,
 209                              "CanvasHelper::getPixel: X coordinate out of bounds" );
 210         ENSURE_ARG_OR_THROW( pos.Y >= 0 && pos.Y < aSize.Height,
 211                              "CanvasHelper::getPixel: Y coordinate out of bounds" );
 212
 213         Gdiplus::Color aColor;
 214
 215         if( Gdiplus::Ok != mpBitmap->GetPixel( pos.X, pos.Y, &aColor ) )
 216             return uno::Sequence< sal_Int8 >();
 217
 218         return tools::argbToIntSequence(aColor.GetValue());
 219     }
 220
 221 }
 222