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6cde53c431
D3DHost_FrameBuffer now provides fallback code copying OpenGL FBO content into D3D surface (slow). OpenGl_FrameBuffer::BufferDump() - FBO dump implementation has been moved from OpenGl_Workspace::BufferDump().
103 lines
4.4 KiB
C++
103 lines
4.4 KiB
C++
// Created on: 2015-06-10
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// Created by: Kirill Gavrilov
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// Copyright (c) 2015 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _D3DHost_FrameBuffer_HeaderFile
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#define _D3DHost_FrameBuffer_HeaderFile
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#include <OpenGl_FrameBuffer.hxx>
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struct IDirect3DDevice9;
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struct IDirect3DSurface9;
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//! Implements bridge FBO for direct rendering to Direct3D surfaces.
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class D3DHost_FrameBuffer : public OpenGl_FrameBuffer
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{
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public:
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//! Empty constructor.
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Standard_EXPORT D3DHost_FrameBuffer();
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//! Destructor, should be called after Release().
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Standard_EXPORT ~D3DHost_FrameBuffer();
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//! Releases D3D and OpenGL resources.
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Standard_EXPORT virtual void Release (OpenGl_Context* theCtx) Standard_OVERRIDE;
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//! Initializes OpenGL FBO for Direct3D interoperability or in fallback mode.
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Standard_EXPORT Standard_Boolean Init (const Handle(OpenGl_Context)& theCtx,
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IDirect3DDevice9* theD3DDevice,
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const Standard_Boolean theIsD3dEx,
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const Standard_Integer theSizeX,
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const Standard_Integer theSizeY);
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//! Initializes OpenGL FBO for Direct3D interoperability.
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Standard_EXPORT Standard_Boolean InitD3dInterop (const Handle(OpenGl_Context)& theCtx,
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IDirect3DDevice9* theD3DDevice,
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const Standard_Boolean theIsD3dEx,
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const Standard_Integer theSizeX,
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const Standard_Integer theSizeY);
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//! Initializes OpenGL FBO + Direct3D surface for copying memory using fallback.
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Standard_EXPORT Standard_Boolean InitD3dFallback (const Handle(OpenGl_Context)& theCtx,
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IDirect3DDevice9* theD3DDevice,
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const Standard_Boolean theIsD3dEx,
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const Standard_Integer theSizeX,
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const Standard_Integer theSizeY);
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//! Binds Direct3D color buffer to OpenGL texture.
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Standard_EXPORT Standard_Boolean registerD3dBuffer (const Handle(OpenGl_Context)& theCtx);
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//! Binds Direct3D objects for OpenGL drawing.
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//! Should be called before LockSurface() and followed by UnlockSurface();
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Standard_EXPORT virtual void BindBuffer (const Handle(OpenGl_Context)& theCtx) Standard_OVERRIDE;
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//! Acquires D3D resource for OpenGL usage.
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Standard_EXPORT virtual void LockSurface (const Handle(OpenGl_Context)& theCtx);
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//! Releases D3D resource.
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Standard_EXPORT virtual void UnlockSurface (const Handle(OpenGl_Context)& theCtx);
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//! Returns D3D surface used as color buffer.
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IDirect3DSurface9* D3dColorSurface() { return myD3dSurf; }
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//! Returns WDDM handle for D3D color surface.
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void* D3dColorSurfaceShare() { return myD3dSurfShare; }
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//! Returns TRUE if FBO has been initialized without WGL/D3D interop.
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Standard_Boolean D3dFallback() const { return myD3dFallback; }
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protected:
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using OpenGl_FrameBuffer::Init;
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protected:
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IDirect3DSurface9* myD3dSurf; //!< D3D surface
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void* myD3dSurfShare; //!< D3D surface share handle in WDDM
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void* myGlD3dDevice; //!< WGL/D3D device handle
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void* myGlD3dSurf; //!< WGL/D3D surface handle
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Standard_Integer myLockCount; //!< locking counter
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Standard_Boolean myD3dFallback; //!< indicates that FBO has been initialized without WGL/D3D interop
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public:
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DEFINE_STANDARD_RTTIEXT(D3DHost_FrameBuffer,OpenGl_FrameBuffer)
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};
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DEFINE_STANDARD_HANDLE(D3DHost_FrameBuffer, OpenGl_FrameBuffer)
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#endif // _D3DHost_FrameBuffer_HeaderFile
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