/* * Copyright (c) 2024 Ross Cunniff * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ using namespace oadl; #include "libglut.oah" #include "libgl2.oah" proc winshape(w, h) { var x = 0, y = 0; if (w < h) { y = (h - w) / 2; h = w; } else { x = (w - h) / 2; w = h; } gl2::Viewport(x, y, w, h); } proc display() { var s; s = gl2::GetString(gl2::RENDERER); "Rendering using ", s, "\n"; s = gl2::GetString(gl2::EXTENSIONS); "Extensions: ", s, "\n"; gl2::ClearColor(0.0,0.0,0.0,1.0); gl2::Clear(gl2::COLOR_BUFFER_BIT|gl2::DEPTH_BUFFER_BIT); glut::WireSphere(0.75, 16, 8); glut::SwapBuffers(); } proc main(args) { glut::Init(args); glut::InitDisplayMode(glut::RGBA | glut::DOUBLE | glut::DEPTH); if( !glut::Get(glut::DISPLAY_MODE_POSSIBLE) ) { "Error setting display mode\n"; halt(); } glut::CreateWindow("Demo\0"); // Note the NULL-termination glut::DisplayFunc(display); glut::ReshapeFunc(winshape); glut::MainLoop(); }