mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 11:05:44 +00:00
f601e38ba8
Remove the ErrorControl class such that all subclasses now inherit from error. Renamed all exception classes via s/ErrorControl/Error/. See issue #57.
131 lines
3.4 KiB
C++
131 lines
3.4 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2016 Sandia Corporation.
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// Copyright 2016 UT-Battelle, LLC.
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// Copyright 2016 Los Alamos National Security.
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#include <vtkm/rendering/CanvasEGL.h>
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#include <vtkm/Types.h>
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#include <vtkm/cont/ArrayPortalToIterators.h>
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#include <vtkm/rendering/CanvasGL.h>
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#include <vtkm/rendering/Color.h>
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#include <vtkm/rendering/internal/OpenGLHeaders.h>
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#include <EGL/egl.h>
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//#include <GL/gl.h>
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namespace vtkm {
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namespace rendering {
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namespace detail {
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struct CanvasEGLInternals
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{
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EGLContext Context;
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EGLDisplay Display;
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EGLSurface Surface;
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};
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} // namespace detail
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CanvasEGL::CanvasEGL(vtkm::Id width, vtkm::Id height)
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: CanvasGL(width, height),
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Internals(new detail::CanvasEGLInternals)
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{
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this->Internals->Context = nullptr;
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this->ResizeBuffers(width, height);
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}
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CanvasEGL::~CanvasEGL()
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{
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}
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void CanvasEGL::Initialize()
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{
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this->Internals->Display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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if (!(this->Internals->Display))
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{
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throw vtkm::cont::ErrorBadValue("Failed to get EGL display");
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}
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EGLint major, minor;
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if (!(eglInitialize(this->Internals->Display, &major, &minor)))
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{
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throw vtkm::cont::ErrorBadValue("Failed to initialize EGL display");
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}
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const EGLint cfgAttrs[] =
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{
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EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
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EGL_BLUE_SIZE, 8,
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EGL_GREEN_SIZE, 8,
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EGL_RED_SIZE, 8,
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EGL_DEPTH_SIZE, 8,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
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EGL_NONE
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};
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EGLint nCfgs;
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EGLConfig cfg;
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if (!(eglChooseConfig(this->Internals->Display, cfgAttrs, &cfg, 1, &nCfgs)) ||
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(nCfgs == 0))
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{
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throw vtkm::cont::ErrorBadValue("Failed to get EGL config");
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}
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const EGLint pbAttrs[] =
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{
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EGL_WIDTH, static_cast<EGLint>(this->GetWidth()),
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EGL_HEIGHT, static_cast<EGLint>(this->GetHeight()),
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EGL_NONE,
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};
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this->Internals->Surface =
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eglCreatePbufferSurface(this->Internals->Display, cfg, pbAttrs);
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if (!this->Internals->Surface)
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{
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throw vtkm::cont::ErrorBadValue("Failed to create EGL PBuffer surface");
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}
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eglBindAPI(EGL_OPENGL_API);
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this->Internals->Context =
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eglCreateContext(this->Internals->Display, cfg, EGL_NO_CONTEXT, NULL);
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if (!this->Internals->Context)
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{
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throw vtkm::cont::ErrorBadValue("Failed to create EGL context");
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}
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if (!(eglMakeCurrent(this->Internals->Display,
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this->Internals->Surface,
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this->Internals->Surface,
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this->Internals->Context)))
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{
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throw vtkm::cont::ErrorBadValue("Failed to create EGL context current");
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}
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}
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void CanvasEGL::Activate()
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{
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glEnable(GL_DEPTH_TEST);
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}
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vtkm::rendering::Canvas *CanvasEGL::NewCopy() const
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{
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return new vtkm::rendering::CanvasEGL(*this);
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}
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}
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} // namespace vtkm::rendering
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