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Graphic3d_RenderingParams::ToShowStats - new option displaying rendering statistics. OpenGl_FrameStats - new class for accumulating frame statistics. OpenGl_Context::FrameStats() provides an access to the frame stats used for currently rendered context. OpenGl_View::Redraw() and OpenGl_View::RedrawImmediate() resets counters within OpenGl_Context::FrameStats(). OpenGl_Layer::UpdateCulling() - simplified resetting of culling state for cullable structures.
94 lines
3.5 KiB
C++
94 lines
3.5 KiB
C++
// Created on: 2011-09-20
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// Created by: Sergey ZERCHANINOV
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// Copyright (c) 2011-2014 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 _OpenGl_LineAttributes_Header
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#define _OpenGl_LineAttributes_Header
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#include <OpenGl_Resource.hxx>
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#include <Aspect_TypeOfLine.hxx>
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#include <Aspect_TypeOfMarker.hxx>
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#include <Font_FontAspect.hxx>
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#include <Graphic3d_HatchStyle.hxx>
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#include <NCollection_DataMap.hxx>
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typedef NCollection_DataMap<Handle(Graphic3d_HatchStyle), unsigned int> OpenGl_MapOfHatchStylesAndIds;
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class OpenGl_Context;
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//! Utility class to manage OpenGL state of polygon hatching rasterization
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//! and keeping its cached state. The hatching rasterization is implemented
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//! using glPolygonStipple function of OpenGL. State of hatching is controlled
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//! by two parameters - type of hatching and IsEnabled parameter.
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//! The hatching rasterization is enabled only if non-zero index pattern type
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//! is selected (zero by default is reserved for solid filling) and if
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//! IsEnabled flag is set to true. The IsEnabled parameter is useful for temporarily
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//! turning on/off the hatching rasterization without making any costly GL calls
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//! for changing the hatch pattern. This is a sharable resource class - it creates
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//! OpenGL context objects for each hatch pattern to achieve quicker switching between
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//! them, thesse GL objects are freed when the resource is released by owner context.
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//! @note The implementation is not supported by Core Profile and by ES version.
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class OpenGl_LineAttributes : public OpenGl_Resource
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{
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public:
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//! Default constructor.
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//! By default the parameters are:
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//! - IsEnabled (true),
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//! - TypeOfHatch (0).
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OpenGl_LineAttributes();
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//! Default destructor.
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virtual ~OpenGl_LineAttributes();
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//! Release GL resources.
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virtual void Release (OpenGl_Context* theGlCtx) Standard_OVERRIDE;
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//! Returns estimated GPU memory usage - not implemented.
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virtual Standard_Size EstimatedDataSize() const Standard_OVERRIDE { return 0; }
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//! Index of currently selected type of hatch.
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int TypeOfHatch() const { return myTypeOfHatch; }
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//! Sets type of the hatch.
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int SetTypeOfHatch (const OpenGl_Context* theGlCtx,
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const Handle(Graphic3d_HatchStyle)& theStyle);
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//! Current enabled state of the hatching rasterization.
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bool IsEnabled() const { return myIsEnabled; }
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//! Turns on/off the hatching rasterization rasterization.
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bool SetEnabled (const OpenGl_Context* theGlCtx, const bool theToEnable);
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protected:
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unsigned int init (const OpenGl_Context* theGlCtx,
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const Handle(Graphic3d_HatchStyle)& theStyle);
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protected:
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int myTypeOfHatch; //!< Currently activated type of hatch
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bool myIsEnabled; //!< Current enabled state of hatching rasterization.
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OpenGl_MapOfHatchStylesAndIds myStyles; //!< Hatch patterns
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public:
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DEFINE_STANDARD_RTTIEXT(OpenGl_LineAttributes,OpenGl_Resource)
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};
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DEFINE_STANDARD_HANDLE(OpenGl_LineAttributes, OpenGl_Resource)
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#endif // _OpenGl_LineAttributes_Header
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