/usr/include/oce/OpenGl_ShaderManager.hxx is in liboce-visualization-dev 0.15-5.
This file is owned by root:root, with mode 0o644.
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// Created by: Denis BOGOLEPOV
// Copyright (c) 2013 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and / or modify it
// under the terms of the GNU Lesser General Public version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _OpenGl_ShaderManager_HeaderFile
#define _OpenGl_ShaderManager_HeaderFile
#include <Graphic3d_ShaderProgram_Handle.hxx>
#include <NCollection_DataMap.hxx>
#include <NCollection_Sequence.hxx>
#include <Handle_OpenGl_ShaderManager.hxx>
#include <OpenGl_ShaderProgram.hxx>
#include <OpenGl_ShaderStates.hxx>
//! List of shader programs.
typedef NCollection_Sequence<Handle(OpenGl_ShaderProgram)> OpenGl_ShaderProgramList;
//! Map to declare per-program states of OCCT materials.
typedef NCollection_DataMap<Handle(OpenGl_ShaderProgram), OpenGl_MaterialState> OpenGl_MaterialStates;
//! This class is responsible for managing shader programs.
class OpenGl_ShaderManager : public Standard_Transient
{
friend class OpenGl_ShaderProgram;
public:
//! Creates new empty shader manager.
Standard_EXPORT OpenGl_ShaderManager (OpenGl_Context* theContext);
//! Releases resources of shader manager.
Standard_EXPORT virtual ~OpenGl_ShaderManager();
//! Creates new shader program or re-use shared instance.
//! @param theProxy [IN] program definition
//! @param theShareKey [OUT] sharing key
//! @param theProgram [OUT] OpenGL program
Standard_EXPORT void Create (const Handle(Graphic3d_ShaderProgram)& theProxy,
TCollection_AsciiString& theShareKey,
Handle(OpenGl_ShaderProgram)& theProgram);
//! Unregisters specified shader program.
Standard_EXPORT void Unregister (TCollection_AsciiString& theShareKey,
Handle(OpenGl_ShaderProgram)& theProgram);
//! Returns list of registered shader programs.
Standard_EXPORT const OpenGl_ShaderProgramList& ShaderPrograms() const;
//! Returns true if no program objects are registered in the manager.
Standard_EXPORT Standard_Boolean IsEmpty() const;
DEFINE_STANDARD_RTTI (OpenGl_ShaderManager)
protected:
OpenGl_MaterialStates myMaterialStates; //!< Per-program state of OCCT material
OpenGl_ProjectionState myProjectionState; //!< State of OCCT projection transformation
OpenGl_ModelWorldState myModelWorldState; //!< State of OCCT model-world transformation
OpenGl_WorldViewState myWorldViewState; //!< State of OCCT world-view transformation
OpenGl_LightSourceState myClippingState; //!< State of OCCT clipping planes
OpenGl_LightSourceState myLightSourceState; //!< State of OCCT light sources
public:
//! Returns current state of OCCT light sources.
Standard_EXPORT const OpenGl_LightSourceState& LightSourceState() const;
//! Updates state of OCCT light sources.
Standard_EXPORT void UpdateLightSourceStateTo (const OpenGl_ListOfLight* theLights);
//! Pushes current state of OCCT light sources to specified program.
Standard_EXPORT void PushLightSourceState (const Handle(OpenGl_ShaderProgram)& theProgram) const;
public:
//! Returns current state of OCCT projection transform.
Standard_EXPORT const OpenGl_ProjectionState& ProjectionState() const;
//! Updates state of OCCT projection transform.
Standard_EXPORT void UpdateProjectionStateTo (const Tmatrix3& theProjectionMatrix);
//! Reverts state of OCCT projection transform.
Standard_EXPORT void RevertProjectionStateTo (const Tmatrix3& theProjectionMatrix);
//! Pushes current state of OCCT projection transform to specified program.
Standard_EXPORT void PushProjectionState (const Handle(OpenGl_ShaderProgram)& theProgram) const;
public:
//! Returns current state of OCCT model-world transform.
Standard_EXPORT const OpenGl_ModelWorldState& ModelWorldState() const;
//! Updates state of OCCT model-world transform.
Standard_EXPORT void UpdateModelWorldStateTo (const Tmatrix3& theModelWorldMatrix);
//! Reverts state of OCCT model-world transform.
Standard_EXPORT void RevertModelWorldStateTo (const Tmatrix3& theModelWorldMatrix);
//! Pushes current state of OCCT model-world transform to specified program.
Standard_EXPORT void PushModelWorldState (const Handle(OpenGl_ShaderProgram)& theProgram) const;
public:
//! Returns current state of OCCT world-view transform.
Standard_EXPORT const OpenGl_WorldViewState& WorldViewState() const;
//! Updates state of OCCT world-view transform.
Standard_EXPORT void UpdateWorldViewStateTo (const Tmatrix3& theWorldViewMatrix);
//! Reverts state of OCCT world-view transform.
Standard_EXPORT void RevertWorldViewStateTo (const Tmatrix3& theWorldViewMatrix);
//! Pushes current state of OCCT world-view transform to specified program.
Standard_EXPORT void PushWorldViewState (const Handle(OpenGl_ShaderProgram)& theProgram) const;
public:
//! Updates state of OCCT clipping planes.
Standard_EXPORT void UpdateClippingState();
//! Reverts state of OCCT clipping planes.
Standard_EXPORT void RevertClippingState();
//! Pushes current state of OCCT clipping planes to specified program.
Standard_EXPORT void PushClippingState (const Handle(OpenGl_ShaderProgram)& theProgram) const;
public:
//! Resets state of OCCT material for all programs.
Standard_EXPORT void ResetMaterialStates();
//! Updates state of OCCT material for specified program.
Standard_EXPORT void UpdateMaterialStateTo (const Handle(OpenGl_ShaderProgram)& theProgram,
const OpenGl_Element* theAspect);
//! Pushes current state of OCCT material to specified program.
Standard_EXPORT void PushMaterialState (const Handle(OpenGl_ShaderProgram)& theProgram) const;
//! Returns current state of OCCT material for specified program.
Standard_EXPORT const OpenGl_MaterialState* MaterialState (const Handle(OpenGl_ShaderProgram)& theProgram) const;
public:
//! Pushes current state of OCCT graphics parameters to specified program.
Standard_EXPORT void PushState (const Handle(OpenGl_ShaderProgram)& theProgram) const;
public:
//! Overwrites context
void SetContext (OpenGl_Context* theCtx)
{
myContext = theCtx;
}
protected:
OpenGl_ShaderProgramList myProgramList; //!< The list of shader programs
OpenGl_Context* myContext; //!< The OpenGL context
private:
Standard_Boolean myIsPP; //!< Is any program object bound (programmable pipeline)?
};
#endif // _OpenGl_ShaderManager_HeaderFile
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