/usr/include/oce/Graphic3d_ShaderVariable.hxx is in liboce-visualization-dev 0.17.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Created by: Denis BOGOLEPOV
// Copyright (c) 2013-2014 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 License 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 _Graphic3d_ShaderVariable_HeaderFile
#define _Graphic3d_ShaderVariable_HeaderFile
#include <Graphic3d_Vec.hxx>
#include <Standard_Transient.hxx>
#include <TCollection_AsciiString.hxx>
#include <Graphic3d_ShaderVariable_Handle.hxx>
//! Interface for generic variable value.
struct Graphic3d_ValueInterface
{
//! Releases memory resources of variable value.
Standard_EXPORT virtual ~Graphic3d_ValueInterface();
//! Returns unique identifier of value type.
virtual Standard_Size TypeID() const = 0;
//! Returns variable value casted to specified type.
template <class T> T& As();
//! Returns variable value casted to specified type.
template <class T> const T& As() const;
};
//! Generates unique type identifier for variable value.
template<class T>
struct Graphic3d_UniformValueTypeID {
/* Not implemented */
};
template<>
struct Graphic3d_UniformValueTypeID<Standard_Integer> {
static const Standard_Size ID = __LINE__;
};
template<>
struct Graphic3d_UniformValueTypeID<Standard_ShortReal> {
static const Standard_Size ID = __LINE__;
};
template<>
struct Graphic3d_UniformValueTypeID<Graphic3d_Vec2> {
static const Standard_Size ID = __LINE__;
};
template<>
struct Graphic3d_UniformValueTypeID<Graphic3d_Vec3> {
static const Standard_Size ID = __LINE__;
};
template<>
struct Graphic3d_UniformValueTypeID<Graphic3d_Vec4> {
static const Standard_Size ID = __LINE__;
};
template<>
struct Graphic3d_UniformValueTypeID<Graphic3d_Vec2i> {
static const Standard_Size ID = __LINE__;
};
template<>
struct Graphic3d_UniformValueTypeID<Graphic3d_Vec3i> {
static const Standard_Size ID = __LINE__;
};
template<>
struct Graphic3d_UniformValueTypeID<Graphic3d_Vec4i> {
static const Standard_Size ID = __LINE__;
};
//! Describes specific value of custom uniform variable.
template <class T>
struct Graphic3d_UniformValue : public Graphic3d_ValueInterface
{
//! Creates new variable value.
Graphic3d_UniformValue (const T& theValue) : Value (theValue) { }
//! Returns unique identifier of value type.
virtual Standard_Size TypeID() const;
//! Value of custom uniform variable.
T Value;
};
//! Integer uniform value.
typedef Graphic3d_UniformValue<Standard_Integer> Graphic3d_UniformInt;
//! Integer uniform 2D vector.
typedef Graphic3d_UniformValue<Graphic3d_Vec2i> Graphic3d_UniformVec2i;
//! Integer uniform 3D vector.
typedef Graphic3d_UniformValue<Graphic3d_Vec3i> Graphic3d_UniformVec3i;
//! Integer uniform 4D vector.
typedef Graphic3d_UniformValue<Graphic3d_Vec4i> Graphic3d_UniformVec4i;
//! Floating-point uniform value.
typedef Graphic3d_UniformValue<Standard_ShortReal> Graphic3d_UniformFloat;
//! Floating-point uniform 2D vector.
typedef Graphic3d_UniformValue<Graphic3d_Vec2> Graphic3d_UniformVec2;
//! Floating-point uniform 3D vector.
typedef Graphic3d_UniformValue<Graphic3d_Vec3> Graphic3d_UniformVec3;
//! Floating-point uniform 4D vector.
typedef Graphic3d_UniformValue<Graphic3d_Vec4> Graphic3d_UniformVec4;
//! Describes custom uniform shader variable.
class Graphic3d_ShaderVariable : public Standard_Transient
{
public:
//! Releases resources of shader variable.
Standard_EXPORT virtual ~Graphic3d_ShaderVariable();
//! Returns name of shader variable.
Standard_EXPORT const TCollection_AsciiString& Name() const;
//! Checks if the shader variable is valid or not.
Standard_EXPORT Standard_Boolean IsDone() const;
//! Returns interface of shader variable value.
Standard_EXPORT Graphic3d_ValueInterface* Value();
//! Creates new initialized shader variable.
template<class T>
static Graphic3d_ShaderVariable* Create (const TCollection_AsciiString& theName,
const T& theValue);
public:
DEFINE_STANDARD_RTTI (Graphic3d_ShaderVariable)
protected:
//! Creates new uninitialized shader variable.
Standard_EXPORT Graphic3d_ShaderVariable (const TCollection_AsciiString& theName);
protected:
//! The name of uniform shader variable.
TCollection_AsciiString myName;
//! The generic value of shader variable.
Graphic3d_ValueInterface* myValue;
};
#include <Graphic3d_ShaderVariable.lxx>
#endif // _Graphic3d_ShaderVariable_HeaderFile
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