--- /dev/null
+// Created on: 2016-08-05
+// Created by: Ilya SEVRIKOV
+// Copyright (c) 2016 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.
+
+#include <OpenGl_ArbTexBindless.hxx>
+#include <OpenGl_BindlessTextureWrapper.hxx>
+
+IMPLEMENT_STANDARD_RTTIEXT (OpenGl_BindlessTextureWrapper, Standard_Transient)
+
+// =======================================================================
+// function : GetTextureSamplerHandle
+// purpose :
+// =======================================================================
+GLuint64 OpenGl_BindlessTextureWrapper::GetTextureSamplerHandle (const GLuint theTextureId, const GLuint theSamplerId)
+{
+ GLuint64 aHandle = myContext->arbTexBindless->glGetTextureSamplerHandleARB (theTextureId, theSamplerId);
+
+#ifdef OCCT_DEBUG
+ GLenum anError = glGetError();
+
+ if (anError != GL_NO_ERROR)
+ {
+ Message::DefaultMessenger()->Send ("Error: Can not get texture sampler handle.", Message_Fail);
+ }
+#endif
+
+ return aHandle;
+}
+
+// =======================================================================
+// function : MakeTextureHandleResident
+// purpose :
+// =======================================================================
+GLvoid OpenGl_BindlessTextureWrapper::MakeTextureHandleResident (const GLuint64 theHandle)
+{
+ myContext->arbTexBindless->glMakeTextureHandleResidentARB (theHandle);
+
+#ifdef OCCT_DEBUG
+ GLenum anError = glGetError();
+
+ if (anError != GL_NO_ERROR)
+ {
+ Message::DefaultMessenger()->Send ("Error: Can not make texture handle as resident.", Message_Fail);
+ }
+#endif
+}
+
+// =======================================================================
+// function : MakeTextureHandleNonResident
+// purpose :
+// =======================================================================
+GLvoid OpenGl_BindlessTextureWrapper::MakeTextureHandleNonResident (const GLuint64 theHandle)
+{
+ myContext->arbTexBindless->glMakeTextureHandleNonResidentARB (theHandle);
+
+#ifdef OCCT_DEBUG
+ GLenum anError = glGetError();
+
+ if (anError != GL_NO_ERROR)
+ {
+ Message::DefaultMessenger()->Send("Error: Can not make texture handle as non-resident.", Message_Fail);
+ }
+#endif
+}
+
+// =======================================================================
+// function : IsTextureHandleResident
+// purpose :
+// =======================================================================
+GLboolean OpenGl_BindlessTextureWrapper::IsTextureHandleResident (const GLuint64 theHandle)
+{
+ return myContext->arbTexBindless->glIsTextureHandleResidentARB (theHandle);
+}
--- /dev/null
+// Created on: 2016-08-05
+// Created by: Ilya SEVRIKOV
+// Copyright (c) 2016 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 _OpenGl_BindlessTextureWrapper_HeaderFile
+#define _OpenGl_BindlessTextureWrapper_HeaderFile
+
+#include <OpenGl_Context.hxx>
+
+//! ARB texture bindless wrapper.
+//!
+//! To access texture or image resources using handles, the handles must first be made resident.
+//! Accessing a texture or image by handle without first making it resident can result in undefined results,
+//! including program termination.
+class OpenGl_BindlessTextureWrapper : public Standard_Transient
+{
+public:
+ OpenGl_BindlessTextureWrapper (const Handle(OpenGl_Context)& theContext)
+ : myContext (theContext)
+ {
+ //
+ }
+
+ //! Create a texture handle using the current non-sampler state from the texture named <texture>
+ //! and the sampler state from the sampler object <sampler>.
+ //! Returns a 64-bit unsigned integer handle.
+ //! The error INVALID_VALUE is generated if <texture> is zero or is not the name of an existing texture object
+ //! or if <sampler> is zero or is not the name of an existing sampler object.
+ //! The error INVALID_OPERATION is generated if the texture object <texture> is not complete (section 3.9.14).
+ //! If an error occurs, a handle of zero is returned.
+ //!
+ //! The error INVALID_OPERATION is generated if the border color (taken from the <sampler>)
+ //! is not one of the following allowed values. If the texture's base internal format is signed
+ //! or unsigned integer, allowed values are (0,0,0,0), (0,0,0,1), (1,1,1,0), and (1,1,1,1).
+ //! If the base internal format is not integer, allowed values are (0.0, 0.0, 0.0, 0.0),
+ //! (0.0, 0.0, 0.0, 1.0), (1.0, 1.0, 1.0, 0.0), and (1.0, 1.0, 1.0, 1.0).
+ //!
+ //! The handle for each texture or texture/sampler pair is unique;
+ //! the same handle will if GetTextureSamplerHandleARB is called multiple times for the same texture/sampler pair.
+ Standard_EXPORT GLuint64 GetTextureSamplerHandle (const GLuint theTextureId, const GLuint theSamplerId);
+
+ //! Makes a texture handle accessible to shaders for texture mapping operations.
+ //!
+ //! While the texture handle is resident, it may be used in texture mapping operations.
+ //! If a shader attempts to perform a texture mapping operation using a handle that is not resident,
+ //! the results of that operation are undefined and may lead to application termination.
+ //! When a texture handle is resident, the texture it references is also considered resident for the
+ //! purposes of the AreTexturesResident command. The error INVALID_OPERATION is generated
+ //! if <handle> is not a valid texture handle, or if <handle> is already resident in the current GL context.
+ Standard_EXPORT GLvoid MakeTextureHandleResident (const GLuint64 theHandle);
+
+ //! Makes a texture handle inaccessible to shaders for texture mapping operations.
+ //!
+ //! The error INVALID_OPERATION is generated if <handle> is not a valid
+ //! texture handle, or if <handle> is not resident in the current GL context.
+ Standard_EXPORT GLvoid MakeTextureHandleNonResident (const GLuint64 theHandle);
+
+ //!
+ Standard_EXPORT GLboolean IsTextureHandleResident (const GLuint64 theHandle);
+
+protected:
+ Handle(OpenGl_Context) myContext;
+
+public:
+ DEFINE_STANDARD_RTTIEXT (OpenGl_BindlessTextureWrapper, Standard_Transient)
+};
+
+DEFINE_STANDARD_HANDLE (OpenGl_BindlessTextureWrapper, Standard_Transient)
+
+#endif //_OpenGl_BindlessTextureWrapper_HeaderFile
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