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5e27df788d
OpenGl_Resource was slightly corrected and OpenGl_Element was extended with Release method to manage GPU resources. OpenGl_PrimitiveArray now uses new OpenGl_VertexBuffer class (requires OpenGL 1.5+). Strange workarounds for feedback mode were removed. OpenGl_Context now provides access to shared GPU resources and manages resources queue for delayed release (replaces functionality of removed OpenGl_ResourceCleaner). Loaded GL_ARB_texture_buffer_object and GL_ARB_draw_instanced extensions. Global maps of views, workspaces and structures were moved to OpenGl_GraphicDriver members. UserDrawCallback() function moved to OpenGl_GraphicDriver methods. Aspect_GraphicCallbackStruct now holds handle of OpenGl_Context instead of system-dependent pointers to GL context definition. New classes NCollection_Vec2, NCollection_Vec3 and NCollection_Vec4 implements interface to low-level data (points, vertices, colors) in GLSL-style. Removed EnableVBO argument from vdrawparray Draw Harness command Corrected compilation errors Fixed wrong argument in Index VBO initialization Fixed several cases of incorrect memory management in TKV3d Visual3d_ViewManager::Remove() Destroy structures before last view removed for correct GPU resources management. Graphic3d_Structure::GraphicClear() Remove groups to avoid usage of dead OpenGl_Group pointers. V3d_View::Remove() Fixed mistake in #0000280 patch. Small correction Fixed OCC280 test command Replace removed view within created one in ViewerTest EventManager. ViewerTest, do not create unused 3D view In current design NIS_View always created and used for both - NIS objects and AIS objects.
153 lines
5.5 KiB
C++
Executable File
153 lines
5.5 KiB
C++
Executable File
// Created on: 2011-10-20
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// Created by: Sergey ZERCHANINOV
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// Copyright (c) 2011-2012 OPEN CASCADE SAS
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//
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// The content of this file is subject to the Open CASCADE Technology Public
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// License Version 6.5 (the "License"). You may not use the content of this file
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// except in compliance with the License. Please obtain a copy of the License
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// at http://www.opencascade.org and read it completely before using this file.
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//
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// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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//
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// The Original Code and all software distributed under the License is
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// distributed on an "AS IS" basis, without warranty of any kind, and the
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// Initial Developer hereby disclaims all such warranties, including without
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// limitation, any warranties of merchantability, fitness for a particular
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// purpose or non-infringement. Please see the License for the specific terms
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// and conditions governing the rights and limitations under the License.
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#include <OpenGl_GraphicDriver.hxx>
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#include <OpenGl_Context.hxx>
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#include <OpenGl_View.hxx>
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#include <OpenGl_Workspace.hxx>
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IMPLEMENT_STANDARD_HANDLE(OpenGl_GraphicDriver,Graphic3d_GraphicDriver)
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IMPLEMENT_STANDARD_RTTIEXT(OpenGl_GraphicDriver,Graphic3d_GraphicDriver)
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namespace
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{
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// Global switch - shared by whole TKOpenGl module. To be removed.
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static Standard_Boolean TheToUseVbo = Standard_True;
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static const Handle(OpenGl_Context) TheNullGlCtx;
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};
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// Pour eviter de "mangler" MetaGraphicDriverFactory, le nom de la
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// fonction qui cree un Graphic3d_GraphicDriver.
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// En effet, ce nom est recherche par la methode DlSymb de la
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// classe OSD_SharedLibrary dans la methode SetGraphicDriver de la
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// classe Graphic3d_GraphicDevice
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extern "C" {
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#if defined(_MSC_VER) // disable MS VC++ warning on C-style function returning C++ object
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#pragma warning(push)
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#pragma warning(disable:4190)
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#endif
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Standard_EXPORT Handle(Graphic3d_GraphicDriver) MetaGraphicDriverFactory (const Standard_CString theShrName)
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{
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Handle(OpenGl_GraphicDriver) aDriver = new OpenGl_GraphicDriver (theShrName);
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return aDriver;
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}
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#if defined(_MSC_VER)
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#pragma warning(pop)
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#endif
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}
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// =======================================================================
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// function : OpenGl_GraphicDriver
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// purpose :
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// =======================================================================
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OpenGl_GraphicDriver::OpenGl_GraphicDriver (const Standard_CString theShrName)
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: Graphic3d_GraphicDriver (theShrName),
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myMapOfView (1, NCollection_BaseAllocator::CommonBaseAllocator()),
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myMapOfWS (1, NCollection_BaseAllocator::CommonBaseAllocator()),
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myMapOfStructure (1, NCollection_BaseAllocator::CommonBaseAllocator()),
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myUserDrawCallback (NULL)
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{
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//
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}
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// =======================================================================
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// function : UserDrawCallback
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// purpose :
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// =======================================================================
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OpenGl_GraphicDriver::OpenGl_UserDrawCallback_t& OpenGl_GraphicDriver::UserDrawCallback()
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{
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return myUserDrawCallback;
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}
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// =======================================================================
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// function : DefaultTextHeight
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// purpose :
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// =======================================================================
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Standard_ShortReal OpenGl_GraphicDriver::DefaultTextHeight() const
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{
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return 16.;
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}
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// =======================================================================
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// function : InvalidateAllWorkspaces
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// purpose : ex-TsmInitUpdateState, deprecated, need to decide what to do with EraseAnimation() call
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// =======================================================================
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void OpenGl_GraphicDriver::InvalidateAllWorkspaces()
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{
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for (NCollection_DataMap<Standard_Integer, Handle(OpenGl_Workspace)>::Iterator anIt (myMapOfWS);
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anIt.More(); anIt.Next())
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{
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anIt.ChangeValue()->EraseAnimation();
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}
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}
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// =======================================================================
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// function : ToUseVBO
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// purpose :
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// =======================================================================
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Standard_Boolean OpenGl_GraphicDriver::ToUseVBO()
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{
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return TheToUseVbo;
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}
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// =======================================================================
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// function : EnableVBO
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// purpose :
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// =======================================================================
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void OpenGl_GraphicDriver::EnableVBO (const Standard_Boolean theToTurnOn)
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{
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TheToUseVbo = theToTurnOn;
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}
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// =======================================================================
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// function : GetSharedContext
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// purpose :
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// =======================================================================
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const Handle(OpenGl_Context)& OpenGl_GraphicDriver::GetSharedContext() const
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{
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if (myMapOfWS.IsEmpty())
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{
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return TheNullGlCtx;
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}
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NCollection_DataMap<Standard_Integer, Handle(OpenGl_Workspace)>::Iterator anIter (myMapOfWS);
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return anIter.Value()->GetGlContext();
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}
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// =======================================================================
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// function : MemoryInfo
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// purpose :
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// =======================================================================
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Standard_Boolean OpenGl_GraphicDriver::MemoryInfo (Standard_Size& theFreeBytes,
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TCollection_AsciiString& theInfo) const
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{
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// this is extra work (for OpenGl_Context initialization)...
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OpenGl_Context aGlCtx;
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if (!aGlCtx.Init())
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{
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return Standard_False;
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}
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theFreeBytes = aGlCtx.AvailableMemory();
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theInfo = aGlCtx.MemoryInfo();
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return !theInfo.IsEmpty();
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}
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