/* San Angeles Observation OpenGL ES version example * Copyright 2004-2005 Jetro Lauha * All rights reserved. * Web: http://iki.fi/jetro/ * * This source is free software; you can redistribute it and/or * modify it under the terms of EITHER: * (1) The GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at * your option) any later version. The text of the GNU Lesser * General Public License is included with this source in the * file LICENSE-LGPL.txt. * (2) The BSD-style license that is included with this source in * the file LICENSE-BSD.txt. * * This source is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files * LICENSE-LGPL.txt and LICENSE-BSD.txt for more details. * * $Id: app-linux.c,v 1.4 2005/02/08 18:42:48 tonic Exp $ * $Revision: 1.4 $ * * Parts of this source file is based on test/example code from * GLESonGL implementation by David Blythe. Here is copy of the * license notice from that source: * * Copyright (C) 2003 David Blythe All Rights Reserved. * * 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 * DAVID BLYTHE 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. */ #include #include #include #include #include "app.h" int gAppAlive = 1; static const char sAppName[] = "San Angeles Observation OpenGL ES version example (Linux)"; static int sWindowWidth = WINDOW_DEFAULT_WIDTH; static int sWindowHeight = WINDOW_DEFAULT_HEIGHT; static EGLDisplay sEglDisplay = EGL_NO_DISPLAY; static EGLContext sEglContext = EGL_NO_CONTEXT; static EGLSurface sEglSurface = EGL_NO_SURFACE; const char *egl_strerror(unsigned err) { switch(err){ case EGL_SUCCESS: return "SUCCESS"; case EGL_NOT_INITIALIZED: return "NOT INITIALIZED"; case EGL_BAD_ACCESS: return "BAD ACCESS"; case EGL_BAD_ALLOC: return "BAD ALLOC"; case EGL_BAD_ATTRIBUTE: return "BAD_ATTRIBUTE"; case EGL_BAD_CONFIG: return "BAD CONFIG"; case EGL_BAD_CONTEXT: return "BAD CONTEXT"; case EGL_BAD_CURRENT_SURFACE: return "BAD CURRENT SURFACE"; case EGL_BAD_DISPLAY: return "BAD DISPLAY"; case EGL_BAD_MATCH: return "BAD MATCH"; case EGL_BAD_NATIVE_PIXMAP: return "BAD NATIVE PIXMAP"; case EGL_BAD_NATIVE_WINDOW: return "BAD NATIVE WINDOW"; case EGL_BAD_PARAMETER: return "BAD PARAMETER"; case EGL_BAD_SURFACE: return "BAD_SURFACE"; // case EGL_CONTEXT_LOST: return "CONTEXT LOST"; default: return "UNKNOWN"; } } void egl_error(const char *name) { unsigned err = eglGetError(); if(err != EGL_SUCCESS) { fprintf(stderr,"%s(): egl error 0x%x (%s)\n", name, err, egl_strerror(err)); } } static void checkGLErrors() { GLenum error = glGetError(); if (error != GL_NO_ERROR) fprintf(stderr, "GL Error: 0x%04x\n", (int)error); } static void checkEGLErrors() { EGLint error = eglGetError(); // GLESonGL seems to be returning 0 when there is no errors? if (error && error != EGL_SUCCESS) fprintf(stderr, "EGL Error: 0x%04x\n", (int)error); } static int initGraphics() { EGLint s_configAttribs[] = { EGL_RED_SIZE, 5, EGL_GREEN_SIZE, 6, EGL_BLUE_SIZE, 5, #if 1 EGL_DEPTH_SIZE, 16, EGL_STENCIL_SIZE, 0, #else EGL_ALPHA_SIZE, EGL_DONT_CARE, EGL_DEPTH_SIZE, EGL_DONT_CARE, EGL_STENCIL_SIZE, EGL_DONT_CARE, EGL_SURFACE_TYPE, EGL_DONT_CARE, #endif EGL_NONE }; EGLint numConfigs = -1; EGLint majorVersion; EGLint minorVersion; EGLConfig config; EGLContext context; EGLSurface surface; EGLDisplay dpy; dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY); egl_error("eglGetDisplay"); fprintf(stderr,"dpy = 0x%08x\n", (unsigned) dpy); eglInitialize(dpy, &majorVersion, &minorVersion); egl_error("eglInitialize"); eglGetConfigs(dpy, NULL, 0, &numConfigs); egl_error("eglGetConfigs"); fprintf(stderr,"num configs %d\n", numConfigs); eglChooseConfig(dpy, s_configAttribs, &config, 1, &numConfigs); egl_error("eglChooseConfig"); surface = eglCreateWindowSurface(dpy, config, android_createDisplaySurface(), NULL); egl_error("eglMapWindowSurface"); fprintf(stderr,"surface = %p\n", surface); context = eglCreateContext(dpy, config, NULL, NULL); egl_error("eglCreateContext"); fprintf(stderr,"context = %p\n", context); eglMakeCurrent(dpy, surface, surface, context); egl_error("eglMakeCurrent"); eglQuerySurface(dpy, surface, EGL_WIDTH, &sWindowWidth); eglQuerySurface(dpy, surface, EGL_HEIGHT, &sWindowHeight); sEglDisplay = dpy; sEglSurface = surface; sEglContext = context; return EGL_TRUE; } static void deinitGraphics() { eglMakeCurrent(sEglDisplay, NULL, NULL, NULL); eglDestroyContext(sEglDisplay, sEglContext); eglDestroySurface(sEglDisplay, sEglSurface); eglTerminate(sEglDisplay); } int main(int argc, char *argv[]) { // not referenced: argc = argc; argv = argv; if (!initGraphics()) { fprintf(stderr, "Graphics initialization failed.\n"); return EXIT_FAILURE; } appInit(); while (gAppAlive) { struct timeval timeNow; if (gAppAlive) { gettimeofday(&timeNow, NULL); appRender(timeNow.tv_sec * 1000 + timeNow.tv_usec / 1000, sWindowWidth, sWindowHeight); checkGLErrors(); eglSwapBuffers(sEglDisplay, sEglSurface); checkEGLErrors(); } } appDeinit(); deinitGraphics(); return EXIT_SUCCESS; }