canvas/source/directx/dx_surfacebitmap.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
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  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 #pragma once
  21
  22 #include <rendering/isurfaceproxy.hxx>
  23 #include <rendering/isurfaceproxymanager.hxx>
  24 #include "dx_ibitmap.hxx"
  25 #include "dx_canvasfont.hxx"
  26 #include "dx_gdiplususer.hxx"
  27 #include "dx_rendermodule.hxx"
  28
  29 namespace dxcanvas
  30 {
  31     class DXSurfaceBitmap : public IBitmap
  32     {
  33     public:
  34         DXSurfaceBitmap( const ::basegfx::B2ISize& rSize,
  35                          const std::shared_ptr<canvas::ISurfaceProxyManager>&   rMgr,
  36                          const IDXRenderModuleSharedPtr&                rRenderModule,
  37                          bool                                           bWithAlpha );
  38
  39         bool resize(const ::basegfx::B2ISize& rSize);
  40         void clear();
  41
  42         virtual GraphicsSharedPtr         getGraphics() override;
  43
  44         virtual BitmapSharedPtr           getBitmap() const override;
  45         virtual ::basegfx::B2ISize getSize() const override;
  46         virtual bool                      hasAlpha() const override;
  47
  48         sal::systools::COMReference<surface_type> getSurface() const { return mpSurface; }
  49
  50         bool draw( double                           fAlpha,
  51                    const ::basegfx::B2DPoint&       rPos,
  52                    const ::basegfx::B2DHomMatrix&   rTransform );
  53
  54         bool draw( const ::basegfx::B2IRange&       rArea );
  55
  56         bool draw( double                           fAlpha,
  57                    const ::basegfx::B2DPoint&       rPos,
  58                    const ::basegfx::B2DRange&       rArea,
  59                    const ::basegfx::B2DHomMatrix&   rTransform );
  60
  61         bool draw( double                           fAlpha,
  62                    const ::basegfx::B2DPoint&       rPos,
  63                    const ::basegfx::B2DPolyPolygon& rClipPoly,
  64                    const ::basegfx::B2DHomMatrix&   rTransform );
  65
  66         virtual css::uno::Sequence< sal_Int8 > getData(
  67             css::rendering::IntegerBitmapLayout&       bitmapLayout,
  68             const css::geometry::IntegerRectangle2D&   rect ) override;
  69
  70         virtual void setData(
  71             const css::uno::Sequence< sal_Int8 >&      data,
  72             const css::rendering::IntegerBitmapLayout& bitmapLayout,
  73             const css::geometry::IntegerRectangle2D&   rect ) override;
  74
  75         virtual void setPixel(
  76             const css::uno::Sequence< sal_Int8 >&      color,
  77             const css::rendering::IntegerBitmapLayout& bitmapLayout,
  78             const css::geometry::IntegerPoint2D&       pos ) override;
  79
  80         virtual css::uno::Sequence< sal_Int8 > getPixel(
  81             css::rendering::IntegerBitmapLayout&       bitmapLayout,
  82             const css::geometry::IntegerPoint2D&       pos ) override;
  83
  84     private:
  85         void init();
  86
  87         // Refcounted global GDI+ state container
  88         GDIPlusUserSharedPtr mpGdiPlusUser;
  89
  90         // size of this image in pixels [integral unit]
  91         ::basegfx::B2ISize maSize;
  92
  93         // pointer to the rendermodule, needed to create surfaces
  94         // which are used as container for the actual pixel data.
  95         // generally we could use any kind of storage, but GDI+
  96         // is not willing to render antialiased fonts unless we
  97         // use this special kind of container, don't ask me why...
  98         IDXRenderModuleSharedPtr mpRenderModule;
  99
 100         // pointer to the surface manager, needed in case clients
 101         // want to resize the bitmap.
 102         std::shared_ptr<canvas::ISurfaceProxyManager> mpSurfaceManager;
 103
 104         // access point to the surface proxy which handles
 105         // the hardware-dependent rendering stuff.
 106         std::shared_ptr< canvas::ISurfaceProxy > mpSurfaceProxy;
 107
 108         // container for pixel data, we need to use a directx
 109         // surface since GDI+ sucks...
 110         sal::systools::COMReference<surface_type> mpSurface;
 111
 112         // since GDI+ does not work correctly in case we
 113         // run on a 16bit display [don't ask me why] we need
 114         // to occasionally render to a native GDI+ bitmap.
 115         BitmapSharedPtr mpGDIPlusBitmap;
 116         // Graphics for the mpGDIPlusBitmap
 117         GraphicsSharedPtr mpGraphics;
 118
 119         // internal implementation of the iColorBuffer interface
 120         std::shared_ptr<canvas::IColorBuffer> mpColorBuffer;
 121
 122         // indicates whether the associated surface needs
 123         // to refresh its contents or not. in other words,
 124         // this flag is set iff both representations are
 125         // out of sync.
 126         mutable bool mbIsSurfaceDirty;
 127
 128         // true if the bitmap contains an alpha channel
 129         bool mbAlpha;
 130     };
 131
 132     typedef std::shared_ptr< DXSurfaceBitmap > DXSurfaceBitmapSharedPtr;
 133 }
 134
 135 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */