/usr/include/oce/OpenGl_TextureBufferArb.hxx is in liboce-visualization-dev 0.15-4.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 | // Created by: Kirill GAVRILOV
// Copyright (c) 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 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_TextureBufferArb_H__
#define _OpenGl_TextureBufferArb_H__
#include <OpenGl_VertexBuffer.hxx>
#include <OpenGl_ArbTBO.hxx>
//! Texture Buffer Object.
//! This is a special 1D texture that VBO-style initialized.
//! The main differences from general 1D texture:
//! - no interpolation between field;
//! - greater sizes;
//! - special sampler object in GLSL shader to access data by index.
//!
//! Notice that though TBO is inherited from VBO this is to unify design
//! user shouldn't cast it to base class and all really useful methods
//! are declared in this class.
class OpenGl_TextureBufferArb : public OpenGl_VertexBuffer
{
public:
//! Helpful constants
static const GLuint NO_TEXTURE = 0;
public:
//! Create uninitialized TBO.
Standard_EXPORT OpenGl_TextureBufferArb();
//! Destroy object, will throw exception if GPU memory not released with Release() before.
Standard_EXPORT virtual ~OpenGl_TextureBufferArb();
//! Override VBO target
Standard_EXPORT virtual GLenum GetTarget() const;
//! Returns true if TBO is valid.
//! Notice that no any real GL call is performed!
bool IsValid() const
{
return OpenGl_VertexBuffer::IsValid()
&& myTextureId != NO_TEXTURE;
}
//! Destroy object - will release GPU memory if any.
Standard_EXPORT virtual void Release (const OpenGl_Context* theGlCtx);
//! Creates VBO and Texture names (ids) if not yet generated.
//! Data should be initialized by another method.
Standard_EXPORT bool Create (const Handle(OpenGl_Context)& theGlCtx);
//! Perform TBO initialization with specified data.
//! Existing data will be deleted.
Standard_EXPORT bool Init (const Handle(OpenGl_Context)& theGlCtx,
const GLuint theComponentsNb,
const GLsizei theElemsNb,
const GLfloat* theData);
//! Bind TBO to specified Texture Unit.
Standard_EXPORT void BindTexture (const Handle(OpenGl_Context)& theGlCtx,
const GLenum theTextureUnit = GL_TEXTURE0) const;
//! Unbind TBO.
Standard_EXPORT void UnbindTexture (const Handle(OpenGl_Context)& theGlCtx,
const GLenum theTextureUnit = GL_TEXTURE0) const;
protected:
GLuint myTextureId; //!< texture id
GLenum myTexFormat; //!< internal texture format
public:
DEFINE_STANDARD_RTTI(OpenGl_TextureBufferArb) // Type definition
};
DEFINE_STANDARD_HANDLE(OpenGl_TextureBufferArb, OpenGl_VertexBuffer)
#endif // _OpenGl_TextureBufferArb_H__
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