95 lines
2.9 KiB
C++
95 lines
2.9 KiB
C++
//============================================================================
|
|
// Copyright (c) Kitware, Inc.
|
|
// All rights reserved.
|
|
// See LICENSE.txt for details.
|
|
// This software is distributed WITHOUT ANY WARRANTY; without even
|
|
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
// PURPOSE. See the above copyright notice for more information.
|
|
//
|
|
// Copyright 2015 Sandia Corporation.
|
|
// Copyright 2015 UT-Battelle, LLC.
|
|
// Copyright 2015 Los Alamos National Security.
|
|
//
|
|
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
|
|
// the U.S. Government retains certain rights in this software.
|
|
//
|
|
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
|
|
// Laboratory (LANL), the U.S. Government retains certain rights in
|
|
// this software.
|
|
//============================================================================
|
|
#ifndef vtk_m_rendering_RenderSurfaceGLX_h
|
|
#define vtk_m_rendering_RenderSurfaceGLX_h
|
|
|
|
#include <vtkm/Types.h>
|
|
#include <vtkm/rendering/View.h>
|
|
#include <vtkm/rendering/Color.h>
|
|
#include <vtkm/rendering/RenderSurfaceGL.h>
|
|
|
|
#include <GL/gl.h>
|
|
#include <GL/glx.h>
|
|
#include <iostream>
|
|
#include <fstream>
|
|
|
|
namespace vtkm {
|
|
namespace rendering {
|
|
|
|
class RenderSurfaceGLX : public RenderSurfaceGL
|
|
{
|
|
public:
|
|
VTKM_CONT_EXPORT
|
|
RenderSurfaceGLX(std::size_t w=1024, std::size_t h=1024,
|
|
const vtkm::rendering::Color &c=vtkm::rendering::Color(0.0f,0.0f,0.0f,1.0f))
|
|
: RenderSurfaceGL(w,h,c)
|
|
{
|
|
ctx = NULL;
|
|
}
|
|
|
|
VTKM_CONT_EXPORT
|
|
virtual void Initialize()
|
|
{
|
|
ctx = glXGetCurrentContext();
|
|
if (!ctx)
|
|
throw vtkm::cont::ErrorControlBadValue("GL context creation failed.");
|
|
rgba.resize(width*height*4);
|
|
/*
|
|
if (!OSMesaMakeCurrent(ctx, &rgba[0], GL_FLOAT, static_cast<GLsizei>(width), static_cast<GLsizei>(height)))
|
|
throw vtkm::cont::ErrorControlBadValue("OSMesa context activation failed.");
|
|
*/
|
|
|
|
glEnable(GL_DEPTH_TEST);
|
|
}
|
|
|
|
VTKM_CONT_EXPORT
|
|
virtual void Clear()
|
|
{
|
|
glClearColor(bgColor.Components[0],bgColor.Components[1],bgColor.Components[2], 1.0f);
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
}
|
|
VTKM_CONT_EXPORT
|
|
virtual void Finish()
|
|
{
|
|
RenderSurfaceGL::Finish();
|
|
|
|
|
|
/* TODO
|
|
//Copy zbuff into floating point array.
|
|
unsigned int *raw_zbuff;
|
|
int zbytes, w, h;
|
|
GLboolean ret;
|
|
ret = OSMesaGetDepthBuffer(ctx, &w, &h, &zbytes, (void**)&raw_zbuff);
|
|
if (!ret || static_cast<std::size_t>(w)!=width || static_cast<std::size_t>(h)!=height)
|
|
throw vtkm::cont::ErrorControlBadValue("Wrong width/height in ZBuffer");
|
|
std::size_t npixels = width*height;
|
|
for (std::size_t i=0; i<npixels; i++)
|
|
zbuff[i] = float(raw_zbuff[i]) / float(UINT_MAX);
|
|
*/
|
|
}
|
|
|
|
private:
|
|
GLXContext ctx;
|
|
};
|
|
|
|
}} //namespace vtkm::rendering
|
|
|
|
#endif //vtk_m_rendering_RenderSurfaceGLX_h
|