// Created by: Kirill GAVRILOV
-// Copyright (c) 2012 OPEN CASCADE SAS
+// Copyright (c) 2013-2014 OPEN CASCADE SAS
//
-// The content of this file is subject to the Open CASCADE Technology Public
-// License Version 6.5 (the "License"). You may not use the content of this file
-// except in compliance with the License. Please obtain a copy of the License
-// at http://www.opencascade.org and read it completely before using this file.
+// This file is part of Open CASCADE Technology software library.
//
-// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
-// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
+// 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.
//
-// The Original Code and all software distributed under the License is
-// distributed on an "AS IS" basis, without warranty of any kind, and the
-// Initial Developer hereby disclaims all such warranties, including without
-// limitation, any warranties of merchantability, fitness for a particular
-// purpose or non-infringement. Please see the License for the specific terms
-// and conditions governing the rights and limitations under the License.
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
#include <OpenGl_TextureBufferArb.hxx>
#include <OpenGl_Context.hxx>
#include <Standard_Assert.hxx>
-IMPLEMENT_STANDARD_HANDLE (OpenGl_TextureBufferArb, OpenGl_VertexBuffer)
-IMPLEMENT_STANDARD_RTTIEXT(OpenGl_TextureBufferArb, OpenGl_VertexBuffer)
+
+IMPLEMENT_STANDARD_RTTIEXT(OpenGl_TextureBufferArb,OpenGl_VertexBuffer)
// =======================================================================
// function : OpenGl_TextureBufferArb
// =======================================================================
GLenum OpenGl_TextureBufferArb::GetTarget() const
{
- return GL_TEXTURE_BUFFER_ARB; // GL_TEXTURE_BUFFER for OpenGL 3.1+
+ return GL_TEXTURE_BUFFER; // GL_TEXTURE_BUFFER for OpenGL 3.1+, OpenGL ES 3.2
}
// =======================================================================
// function : Release
// purpose :
// =======================================================================
-void OpenGl_TextureBufferArb::Release (const OpenGl_Context* theGlCtx)
+void OpenGl_TextureBufferArb::Release (OpenGl_Context* theGlCtx)
{
if (myTextureId != NO_TEXTURE)
{
Standard_ASSERT_RETURN (theGlCtx != NULL,
"OpenGl_TextureBufferExt destroyed without GL context! Possible GPU memory leakage...",);
- glDeleteTextures (1, &myTextureId);
+ if (theGlCtx->IsValid())
+ {
+ glDeleteTextures (1, &myTextureId);
+ }
myTextureId = NO_TEXTURE;
}
OpenGl_VertexBuffer::Release (theGlCtx);
const GLsizei theElemsNb,
const GLfloat* theData)
{
- if (theComponentsNb != 1
- && theComponentsNb != 2
- && theComponentsNb != 4)
+ if (theGlCtx->arbTBO == NULL)
+ {
+ return false;
+ }
+ else if (theComponentsNb < 1
+ || theComponentsNb > 4)
{
// unsupported format
return false;
}
+ else if (theComponentsNb == 3
+ && !theGlCtx->arbTboRGB32)
+ {
+ return false;
+ }
else if (!Create (theGlCtx)
|| !OpenGl_VertexBuffer::Init (theGlCtx, theComponentsNb, theElemsNb, theData))
{
{
case 1: myTexFormat = GL_R32F; break;
case 2: myTexFormat = GL_RG32F; break;
- //case 3: myTexFormat = GL_RGB32F; break; // GL_ARB_texture_buffer_object_rgb32
+ case 3: myTexFormat = GL_RGB32F; break; // GL_ARB_texture_buffer_object_rgb32
case 4: myTexFormat = GL_RGBA32F; break;
}
Bind (theGlCtx);
BindTexture (theGlCtx);
- theGlCtx->arbTBO->glTexBufferARB (GetTarget(), myTexFormat, myBufferId);
+ theGlCtx->arbTBO->glTexBuffer (GetTarget(), myTexFormat, myBufferId);
+ UnbindTexture (theGlCtx);
+ Unbind (theGlCtx);
+ return true;
+}
+
+// =======================================================================
+// function : Init
+// purpose :
+// =======================================================================
+bool OpenGl_TextureBufferArb::Init (const Handle(OpenGl_Context)& theGlCtx,
+ const GLuint theComponentsNb,
+ const GLsizei theElemsNb,
+ const GLuint* theData)
+{
+ if (theGlCtx->arbTBO == NULL)
+ {
+ return false;
+ }
+ else if (theComponentsNb < 1
+ || theComponentsNb > 4)
+ {
+ // unsupported format
+ return false;
+ }
+ else if (theComponentsNb == 3
+ && !theGlCtx->arbTboRGB32)
+ {
+ return false;
+ }
+ else if (!Create (theGlCtx)
+ || !OpenGl_VertexBuffer::Init (theGlCtx, theComponentsNb, theElemsNb, theData))
+ {
+ return false;
+ }
+
+ switch (theComponentsNb)
+ {
+ case 1: myTexFormat = GL_R32I; break;
+ case 2: myTexFormat = GL_RG32I; break;
+ case 3: myTexFormat = GL_RGB32I; break;
+ case 4: myTexFormat = GL_RGBA32I; break;
+ }
+
+ Bind (theGlCtx);
+ BindTexture (theGlCtx);
+ theGlCtx->arbTBO->glTexBuffer (GetTarget(), myTexFormat, myBufferId);
+ UnbindTexture (theGlCtx);
+ Unbind (theGlCtx);
+ return true;
+}
+
+// =======================================================================
+// function : Init
+// purpose :
+// =======================================================================
+bool OpenGl_TextureBufferArb::Init (const Handle(OpenGl_Context)& theGlCtx,
+ const GLuint theComponentsNb,
+ const GLsizei theElemsNb,
+ const GLushort* theData)
+{
+ if (theGlCtx->arbTBO == NULL)
+ {
+ return false;
+ }
+ else if (theComponentsNb < 1
+ || theComponentsNb > 4)
+ {
+ // unsupported format
+ return false;
+ }
+ else if (!Create (theGlCtx)
+ || !OpenGl_VertexBuffer::Init (theGlCtx, theComponentsNb, theElemsNb, theData))
+ {
+ return false;
+ }
+
+ switch (theComponentsNb)
+ {
+ case 1: myTexFormat = GL_R16I; break;
+ case 2: myTexFormat = GL_RG16I; break;
+ case 3: myTexFormat = GL_RGB16I; break;
+ case 4: myTexFormat = GL_RGBA16I; break;
+ }
+
+ Bind (theGlCtx);
+ BindTexture (theGlCtx);
+ theGlCtx->arbTBO->glTexBuffer (GetTarget(), myTexFormat, myBufferId);
+ UnbindTexture (theGlCtx);
+ Unbind (theGlCtx);
+ return true;
+}
+
+// =======================================================================
+// function : Init
+// purpose :
+// =======================================================================
+bool OpenGl_TextureBufferArb::Init (const Handle(OpenGl_Context)& theGlCtx,
+ const GLuint theComponentsNb,
+ const GLsizei theElemsNb,
+ const GLubyte* theData)
+{
+ if (theGlCtx->arbTBO == NULL)
+ {
+ return false;
+ }
+ else if (theComponentsNb < 1
+ || theComponentsNb > 4)
+ {
+ // unsupported format
+ return false;
+ }
+ else if (!Create (theGlCtx)
+ || !OpenGl_VertexBuffer::Init (theGlCtx, theComponentsNb, theElemsNb, theData))
+ {
+ return false;
+ }
+
+ switch (theComponentsNb)
+ {
+ case 1: myTexFormat = GL_R8; break;
+ case 2: myTexFormat = GL_RG8; break;
+ case 3: myTexFormat = GL_RGB8; break;
+ case 4: myTexFormat = GL_RGBA8; break;
+ }
+
+ Bind (theGlCtx);
+ BindTexture (theGlCtx);
+ theGlCtx->arbTBO->glTexBuffer (GetTarget(), myTexFormat, myBufferId);
UnbindTexture (theGlCtx);
Unbind (theGlCtx);
return true;
void OpenGl_TextureBufferArb::BindTexture (const Handle(OpenGl_Context)& theGlCtx,
const GLenum theTextureUnit) const
{
- theGlCtx->core20->glActiveTexture (theTextureUnit);
+ theGlCtx->core20fwd->glActiveTexture (theTextureUnit);
glBindTexture (GetTarget(), myTextureId);
}
void OpenGl_TextureBufferArb::UnbindTexture (const Handle(OpenGl_Context)& theGlCtx,
const GLenum theTextureUnit) const
{
- theGlCtx->core20->glActiveTexture (theTextureUnit);
+ theGlCtx->core20fwd->glActiveTexture (theTextureUnit);
glBindTexture (GetTarget(), NO_TEXTURE);
}
projects / occt.git / blobdiff