vcl/inc/opengl/win/gdiimpl.hxx

   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
  10 #ifndef INCLUDED_VCL_INC_OPENGL_WIN_GDIIMPL_HXX
  11 #define INCLUDED_VCL_INC_OPENGL_WIN_GDIIMPL_HXX
  12
  13 #include <memory>
  14 #include <vcl/dllapi.h>
  15
  16 #include <openglgdiimpl.hxx>
  17 #include <svdata.hxx>
  18 #include <win/salgdi.h>
  19 #include <o3tl/lru_map.hxx>
  20 #include <vcl/opengl/OpenGLContext.hxx>
  21 #include <ControlCacheKey.hxx>
  22
  23 class WinOpenGLSalGraphicsImpl : public OpenGLSalGraphicsImpl
  24 {
  25     friend class WinLayout;
  26 private:
  27     WinSalGraphics& mrWinParent;
  28
  29     bool RenderCompatibleDC(OpenGLCompatibleDC& rWhite, OpenGLCompatibleDC& rBlack,
  30                             int nX, int nY, TextureCombo& rCombo);
  31
  32 public:
  33     WinOpenGLSalGraphicsImpl(WinSalGraphics& rGraphics,
  34                              SalGeometryProvider *mpProvider);
  35
  36 protected:
  37     virtual rtl::Reference<OpenGLContext> CreateWinContext() override;
  38
  39     bool RenderTextureCombo(TextureCombo const & rCombo, int nX, int nY);
  40
  41 public:
  42     virtual void Init() override;
  43     virtual void copyBits( const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics ) override;
  44
  45
  46     bool TryRenderCachedNativeControl(ControlCacheKey const & rControlCacheKey, int nX, int nY);
  47
  48     bool RenderAndCacheNativeControl(OpenGLCompatibleDC& rWhite, OpenGLCompatibleDC& rBlack,
  49                                      int nX, int nY , ControlCacheKey& aControlCacheKey);
  50
  51 };
  52
  53 struct ControlCacheHashFunction
  54 {
  55     std::size_t operator()(ControlCacheKey const& aCache) const
  56     {
  57         std::size_t seed = 0;
  58         boost::hash_combine(seed, aCache.mnType);
  59         boost::hash_combine(seed, aCache.mnPart);
  60         boost::hash_combine(seed, aCache.mnState);
  61         boost::hash_combine(seed, aCache.maSize.Width());
  62         boost::hash_combine(seed, aCache.maSize.Height());
  63         return seed;
  64     }
  65 };
  66
  67 typedef std::pair<ControlCacheKey, std::unique_ptr<TextureCombo>> ControlCachePair;
  68 typedef o3tl::lru_map<ControlCacheKey, std::unique_ptr<TextureCombo>, ControlCacheHashFunction> ControlCacheType;
  69
  70 class TheTextureCache {
  71     ControlCacheType cache;
  72
  73     TheTextureCache();
  74
  75 public:
  76     static ControlCacheType & get();
  77 };
  78
  79 #endif
  80
  81 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */