bool Engine::init() {
if (!app) {
Log::print("App not informed");
return false;
}
if (!initSDL()) {
return false;
}
setupOpenGL();
if (!initSDLWindow()) {
return false;
}
if (!initSDLGLContext()) {
return false;
}
if (!initGLEW()) {
return false;
}
printVersions();
if (!app->init()) {
return false;
}
reshape();
return true;
}
int Game::init()
{
mInMenu = true;
mMenuOption = 0;
mQuitDone = false;
mLevel = 0;
int error = initSDL();
if(error == 0) error = initGLEW();
if(error == 0) error = initGL();
if (!mMusic.load("./music/Sardonica_-_Through_to_Reality__Original_.mp3")) {
error = 30;
}
mMusic.play(true);
if (!mHud.init()) {
error = 40;
}
if (!mMenu.init()){
error = 50;
}
mWinSound.load("./sounds/you_win.wav");
mLoseSound.load("./sounds/you_lose.wav");
return error;
}
bool Window::configInit()
{
GLXFBConfig* fbConfig = chooseGLXFBConfig();
if( !fbConfig )
{
sendError( ERROR_SYSTEMWINDOW_PIXELFORMAT_NOTFOUND );
return false;
}
GLXContext context = createGLXContext( fbConfig );
setGLXContext( context );
if( !context )
{
XFree( fbConfig );
return false;
}
bool success = configInitGLXDrawable( fbConfig );
XFree( fbConfig );
if( !success || !_impl->xDrawable )
{
sendError( ERROR_GLXWINDOW_NO_DRAWABLE );
return false;
}
makeCurrent();
initGLEW();
_initSwapSync();
if( getIAttribute( IATTR_HINT_DRAWABLE ) == FBO )
success = configInitFBO();
return success;
}
RenderWindow::RenderWindow(const WindowParams& params)
{
// TODO: options
// FSAA
//::glfwWindowHint(GLFW_SAMPLES, 16);
::glfwWindowHint (GLFW_CONTEXT_VERSION_MAJOR, 3);
::glfwWindowHint (GLFW_CONTEXT_VERSION_MINOR, 3);
//::glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
//::glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 1);
::glfwWindowHint (GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
::glfwWindowHint (GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
// TODO: monitor & res selection
GLFWmonitor* mon = ::glfwGetPrimaryMonitor();
const GLFWvidmode* mode = ::glfwGetVideoMode(mon);
m_window = std::shared_ptr<GLFWwindow>(::glfwCreateWindow(params.width, params.height, params.title.c_str(), NULL, NULL), ::glfwDestroyWindow);
if (m_window == nullptr)
throw Commons::UnknownException("Can't create GLFW window");
::glfwMakeContextCurrent(m_window.get());
::glfwSetWindowUserPointer(m_window.get(), this);
//::glfwSetInputMode(m_window.get(), GLFW_CURSOR, GLFW_CURSOR_DISABLED);
//::glfwSetCursorPosCallback(m_window.get(), CursorCallbackStatic); // TODO: not needed? (have events)
initGLEW();
}
int main(int argc, char** argv) {
for (int i = 0; i < M.GetLayers(); i++)
{
M.Show(i);
printf("\n");
}
current_elevator_i = M.getElevatorI();
current_elevator_j = M.getElevatorJ();
fvc = read_obj("flashlight.obj", fv, ftv, fn);
initGLUT(&argc, argv);
initGLEW();
initOpenGL();
glutKeyboardFunc(Movement);
glutWarpPointer(200, 200);
glutMotionFunc(MouseActiveMotion);
glutPassiveMotionFunc(MouseMotion);
glutMouseFunc(MouseButtons);
glutMainLoop();
freeVAO();
freeVBO();
cleanShaders();
return 0;
}
void App::onInit() {
initSFML();
initGLEW();
grMananger.reset(new GraphicsManager());
loadingScreen.reset(new LoadingScreen(window, grMananger.get()));
world.reset(new World(grMananger.get()));
}
int main(int argc, char* argv[]) {
struct config* cfg = getConfiguration();
initSDL(cfg);
initGLEW();
init();
mainLoop();
cleanup();
return 0;
}
int main(int argc, char** argv){
globalEngine = new Engine();
globalCamera = new Camera();
initGLUT(&argc, argv);
initGLEW();
loadModels();
initOpenGL();
glutMainLoop();
return 0;
}
void OpenGLHelper::initOpenGL(int *argc, char** argv, string windowCaption, int windowXPosition, int windowYPosition, int windowWidth, int windowHeight)
{
initGLUT(argc, argv, windowCaption, windowXPosition, windowYPosition, windowWidth, windowHeight);
initGLEW();
glEnable(GL_LIGHTING);
glEnable(GL_COLOR_MATERIAL);
glEnable(GL_DEPTH_TEST);
glEnable(GL_LIGHT0);
glEnable(GL_NORMALIZE);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
GLint textureUnits = 3;
glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &textureUnits);
bool Renderer::init(::Display* display, ::Window window, GLXFBConfig& fbc)
{
sbAssert(display, "display is null");
mDisplay = display;
gLog.info("creating GL context...\n");
int contextAttribs[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
GLX_CONTEXT_MINOR_VERSION_ARB, 3,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
0
};
GLXCREATECTXATTRSARBPROC glXCreateContextAttribsARB = (GLXCREATECTXATTRSARBPROC)glXGetProcAddress((GLubyte*)"glXCreateContextAttribsARB");
if (!glXCreateContextAttribsARB) {
gLog.err("glXCreateContextAttribsARB not present\n");
return false;
}
GL_CHECK(mGLContext = glXCreateContextAttribsARB(mDisplay, fbc, 0, True, contextAttribs));
if (!mGLContext) {
gLog.err("glXCreateContextAttribsARB failed\n");
return false;
}
GL_CHECK(glXMakeCurrent(mDisplay, window, mGLContext));
printGLVersion();
if (!initGLEW()) {
return false;
}
GL_CHECK(glEnable(GL_DEPTH_TEST));
GL_CHECK(glDepthFunc(GL_LESS));
GL_CHECK(glEnable(GL_CULL_FACE));
GL_CHECK(glCullFace(GL_BACK));
GL_CHECK(glEnable(GL_BLEND));
GL_CHECK(glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA));
#if 0
GL_CHECK(glEnable(GL_TEXTURE_2D));
String::init(mDisplay);
#endif
return true;
}
bool Window::configInit()
{
AGLPixelFormat pixelFormat = chooseAGLPixelFormat();
if( !pixelFormat )
return false;
AGLContext context = createAGLContext( pixelFormat );
destroyAGLPixelFormat ( pixelFormat );
setAGLContext( context );
if( !context )
return false;
makeCurrent();
initGLEW();
return configInitAGLDrawable();
}
void Engine::initGLUT() {
int argc = 1;
char *argv[] = {"Bin", NULL};
glutInit(&argc, argv);
if(context->core) {
glutInitContextVersion(context->majorVersion, context->minorVersion);
glutInitContextProfile(GLUT_CORE_PROFILE);
} else {
glutInitContextProfile(GLUT_COMPATIBILITY_PROFILE);
}
glutInitDisplayMode(framebuffer->flags);
glutInitWindowPosition(window->positionX, window->positionY);
glutInitWindowSize(window->width, window->height);
// in case GL_DEBUG_OUTPUT doesn't work
// glutInitContextFlags(GLUT_DEBUG);
glutCreateWindow(window->name.c_str());
std::cout << "GLUT initialized\n";
glEnable(GL_DEBUG_OUTPUT);
glutSetWindowData(static_cast<void *>(this));
glutIdleFunc(idleCallback);
glutDisplayFunc(displayCallback);
glutReshapeFunc(reshapeCallback);
glutCloseFunc(closeCallback);
glutKeyboardFunc(handleKeyboardCallback);
glutKeyboardUpFunc(handleKeyboardUpCallback);
glutSpecialFunc(handleKeyboardSpecialCallback);
glutSpecialUpFunc(handleKeyboardSpecialUpCallback);
glutMotionFunc(handleMouseMovement);
glutPassiveMotionFunc(handleMouseMovement);
initGLEW();
glDebugMessageCallback(DebugOutput::printDebugOutput, NULL);
//GLenum severity = GL_DEBUG_SEVERITY_LOW | GL_DEBUG_SEVERITY_MEDIUM | GL_DEBUG_SEVERITY_HIGH | GL_DEBUG_SEVERITY_NOTIFICATION;
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, NULL, GL_TRUE);
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_NOTIFICATION, 0, NULL, GL_FALSE);
glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE, GLUT_ACTION_GLUTMAINLOOP_RETURNS);
std::cout << "Info | Vendor: " << glGetString(GL_VENDOR) << " | Renderer: " << glGetString(GL_RENDERER) << " | OpenGl version: " << glGetString(GL_VERSION) << std::endl;
}
bool Root::init(bool fullscr, int w, int h)
{
LOG_INFO("loading root");
windowWidth = w;
windowHeight = h;
fullscreen = fullscr;
if(!initGLFW()) return false;
if(!initGLEW()) return false;
// set GL stuff
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//Call these in the right order: Models need Textures
TextureManager::shared().initialize();
//MaterialManager::shared().initialize();
ModelManager::shared().initialize();
overlay = new Overlay();
if(!overlay->init()) return false;
Interface* interf = new Interface;
if(!interf->init())
{
LOG_INFO("Could not initialize interface");
return false;
}
addFrameListener(interf);
Console* console = new Console;
if(!console->init())
{
LOG_INFO("Could not initialize console");
return false;
}
addFrameListener(console);
addInputListener(console);
LOG_INFO("Root initialized");
return true;
}
// Main entry point.
int main(int argc, char** argv)
{
glutInit(&argc, argv);
globals.width = 1000;
globals.height = 700;
glutInitWindowSize(globals.width, globals.height);
glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Particel");
initGLEW();
displayOpenGLInfo();
init();
glutReshapeFunc(&reshape);
glutDisplayFunc(&display);
glutIdleFunc(&idle);
glutMainLoop();
return EXIT_SUCCESS;
}
int main(const int argc, const char* argv[])
{
printf("<< %s >>\n", TITLE);
//GLU initialize
{
initGLUT(argc, argv);
createGLUTWindow();
}
//GLEW initialize
{
const GLenum result = initGLEW();
if (result != GLEW_OK){ abort_program(); return EXIT_FAILURE; }
}
{
printGLEWInfo();
const bool result = checkGLEWFunctions();
if (!result){ abort_program(); return EXIT_FAILURE; }
}
//Shader initialize
const GLuint vertex_shader_handle = createAndLoadVertexShaderAll();
if (!vertex_shader_handle){ abort_program(); return EXIT_FAILURE; }
const GLuint fragment_shader_handle = createAndLoadFragmentShaderAll();
if (!fragment_shader_handle){ abort_program(); return EXIT_FAILURE; }
const GLuint program_handle = createAndLinkShaderProgram(vertex_shader_handle, fragment_shader_handle);
g_program_handle = program_handle;
printActiveAttribInfo(program_handle);
printActiveUniformInfo(program_handle);
//GLM test
testGLM();
//Main loop
setupGLUTFunctions();
mainloopGLUT();
return EXIT_SUCCESS;
}
bool Window::createWindow(int w = 1024, int h = 768, int posx = 100, int posy = 100)
{
_width = w;
_height = h;
_xPos = posx;
_yPos = posy;
if ( !glfwInit() )
{
fprintf( stderr, "VIDEO: Failed to initialize GLFW!\n");
//exit(EXIT_FAILURE);
return false;
}
// Set OpenGL characteristics
glfwWindowHint(GLFW_SAMPLES, 4); //4x antialiasing
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint( GLFW_RESIZABLE, GL_FALSE );
// Create window with given size and title
_win = glfwCreateWindow(_width, _height, _title.c_str(), NULL, NULL);
if (!_win)
return false;
// Make window active, set position on the screen and title
glfwMakeContextCurrent(_win);
glfwSetWindowPos(_win, _xPos, _yPos);
if (!initGLEW())
return false;
return true;
}
int main(int argc, char** argv)
{
al= sl= dl= gam= inv= zoom=1.0;
inv=0;
glutInit(&argc, argv);
globals.width = 800;
globals.height = 600;
glutInitWindowSize(globals.width, globals.height);
glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Model viewer");
initGLEW();
displayOpenGLVersion();
init();
glutReshapeFunc(&reshape);
glutDisplayFunc(&display);
glutKeyboardFunc(&keyboard);
glutMouseFunc(&mouse);
glutMotionFunc(&motion);
glutIdleFunc(&idle);
glutMainLoop();
return EXIT_SUCCESS;
}
int main(int argc, char* argv[]) {
// initialization and window creation
initGLFW();
GLFWwindow* window = createWindow(800, 600, "Learn OpenGL");
glfwSetKeyCallback(window, glfwKeyCallback);
if (window == nullptr) return -1;
glfwMakeContextCurrent(window);
if (initGLEW() != GLEW_OK) return -1;
glViewport(0, 0, 800, 600);
// game loop
while (!glfwWindowShouldClose(window)) {
glfwPollEvents();
glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
glfwSwapBuffers(window);
}
glfwTerminate();
return 0;
}
int main()
{
GLFWwindow* window;
const int WIDTH = 800, HEIGHT = 600;
char* WINDOW_NAME = "OpenGL - basic stuff";
initContext();
window = glfwCreateWindow(WIDTH, HEIGHT, WINDOW_NAME, nullptr, nullptr);
glfwMakeContextCurrent(window);
glfwSetKeyCallback(window, key_callback);
glfwSetCursorPosCallback(window, mouse_callback);
glfwSetScrollCallback(window, scroll_callback);
//glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
initGLEW();
// Create VAOs
GLuint vaoCube, vaoQuad, vaoLight;
glGenVertexArrays(1, &vaoCube);
glGenVertexArrays(1, &vaoQuad);
glGenVertexArrays(1, &vaoLight);
// Load vertex data
GLuint vboCube, vboQuad;
glGenBuffers(1, &vboCube);
glGenBuffers(1, &vboQuad);
glBindBuffer(GL_ARRAY_BUFFER, vboCube);
glBufferData(GL_ARRAY_BUFFER, sizeof(cubeVertices), cubeVertices, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, vboQuad);
glBufferData(GL_ARRAY_BUFFER, sizeof(quadVertices), quadVertices, GL_STATIC_DRAW);
// Create shader programs
GLuint sceneVertexShader, sceneFragmentShader, sceneShaderProgram;
createShaderProgram(readShaderFile("basic.vert"), readShaderFile("basic.frag"), sceneVertexShader, sceneFragmentShader, sceneShaderProgram);
GLuint screenVertexShader, screenFragmentShader, screenShaderProgram;
createShaderProgram(readShaderFile("basic_screen.vert"), readShaderFile("basic_screen.frag"), screenVertexShader, screenFragmentShader, screenShaderProgram);
// Specify the layout of the vertex data
glBindVertexArray(vaoCube);
glBindBuffer(GL_ARRAY_BUFFER, vboCube);
specifySceneVertexAttributes(sceneShaderProgram);
glBindVertexArray(vaoQuad);
glBindBuffer(GL_ARRAY_BUFFER, vboQuad);
specifyScreenVertexAttributes(screenShaderProgram);
glBindVertexArray(vaoLight);
glBindBuffer(GL_ARRAY_BUFFER, vboCube);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), (GLvoid*)0); // Note that we skip over the other data in our buffer object (we don't need the normals/textures, only positions).
glEnableVertexAttribArray(0);
glBindVertexArray(0);
// Load textures
GLuint diffuseMap = loadTextureMap("container2.png");
GLuint specularMap = loadTextureMap("container2_specular.png");
glUseProgram(sceneShaderProgram);
glUniform1i(glGetUniformLocation(sceneShaderProgram, "texKitten"), 0);
glUniform1i(glGetUniformLocation(sceneShaderProgram, "texPuppy"), 1);
glUseProgram(screenShaderProgram);
glUniform1i(glGetUniformLocation(screenShaderProgram, "texFramebuffer"), 0);
GLint uniModel = glGetUniformLocation(sceneShaderProgram, "model");
// Create frame buffer
GLuint frameBuffer;
glGenFramebuffers(1, &frameBuffer);
glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer);
// Create texture to hold color buffer
GLuint texColorBuffer;
glGenTextures(1, &texColorBuffer);
glBindTexture(GL_TEXTURE_2D, texColorBuffer);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 800, 600, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texColorBuffer, 0);
// Create Renderbuffer Object to hold depth and stencil buffers
GLuint rboDepthStencil;
glGenRenderbuffers(1, &rboDepthStencil);
glBindRenderbuffer(GL_RENDERBUFFER, rboDepthStencil);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, 800, 600);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, rboDepthStencil);
glm::mat4 viewMatrix = glm::lookAt(
glm::vec3(2.5f, 2.5f, 2.0f),
glm::vec3(0.0f, 0.0f, 0.0f),
glm::vec3(0.0f, 0.0f, 1.0f));
GLint uniView = glGetUniformLocation(sceneShaderProgram, "view");
glUniformMatrix4fv(uniView, 1, GL_FALSE, glm::value_ptr(viewMatrix));
glm::mat4 projMatrix = glm::perspective(camera.Zoom, (float)WIDTH / (float)HEIGHT, 0.1f, 100.0f);
GLint uniProj = glGetUniformLocation(sceneShaderProgram, "proj");
glUniformMatrix4fv(uniProj, 1, GL_FALSE, glm::value_ptr(projMatrix));
GLint uniColor = glGetUniformLocation(sceneShaderProgram, "overrideColor");
GLint timer = glGetUniformLocation(sceneShaderProgram, "timer");
while (!glfwWindowShouldClose(window))
{
GLfloat currentFrame = glfwGetTime();
deltaTime = currentFrame - lastFrame;
lastFrame = currentFrame;
glfwPollEvents();
Do_Movement();
// Bind our framebuffer and draw 3D scene(spinning cube)
glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer);
glBindVertexArray(vaoCube);
glEnable(GL_DEPTH_TEST);
glUseProgram(sceneShaderProgram);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texKitten);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, texPuppy);
// Clear the screen to white
glClearColor(.2f, .2f, .2f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
GLfloat time = (GLfloat)glfwGetTime();
glUniform1f(timer, time);
time = 0;
viewMatrix = camera.GetViewMatrix();
projMatrix = glm::perspective(camera.Zoom, (float)WIDTH / (float)HEIGHT, 0.1f, 100.0f);
glm::mat4 modelMatrix;
modelMatrix = glm::rotate(modelMatrix, time * 100, glm::vec3(0.0f, 0.0f, 1.0f));
glUniformMatrix4fv(uniModel, 1, GL_FALSE, glm::value_ptr(modelMatrix));
glUniformMatrix4fv(uniView, 1, GL_FALSE, glm::value_ptr(viewMatrix));
glUniformMatrix4fv(uniProj, 1, GL_FALSE, glm::value_ptr(projMatrix));
// CUBE
glDrawArrays(GL_TRIANGLES, 0, 36);
glEnable(GL_STENCIL_TEST);
// FLOOR
/*glStencilFunc(GL_ALWAYS, 1, 0xFF);
glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
glStencilMask(0xFF);
glDepthMask(GL_FALSE);
glClear(GL_STENCIL_BUFFER_BIT);
glDrawArrays(GL_TRIANGLES, 36, 6);
// CUBE REFLECTION
glStencilFunc(GL_EQUAL, 1, 0xFF);
glStencilMask(0x00);
glDepthMask(GL_TRUE);
modelMatrix = glm::scale(glm::translate(modelMatrix, glm::vec3(0, 0, -1)), glm::vec3(1, 1, -1));
glUniformMatrix4fv(uniModel, 1, GL_FALSE, glm::value_ptr(modelMatrix));
glUniform3f(uniColor, 0.3f, 0.3f, 0.3f);
glUniform3f(uniColor, 0.3f, 0.3f, 0.3f);
glDrawArrays(GL_TRIANGLES, 0, 36);
glUniform3f(uniColor, 1.0f, 1.0f, 1.0f);*/
glDisable(GL_STENCIL_TEST);
// Bind default framebuffer and draw contents of our framebuffer
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glBindVertexArray(vaoQuad);
glDisable(GL_DEPTH_TEST);
glUseProgram(screenShaderProgram);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texColorBuffer);
glDrawArrays(GL_TRIANGLES, 0, 6);
glfwSwapBuffers(window);
}
glDeleteRenderbuffers(1, &rboDepthStencil);
glDeleteTextures(1, &texColorBuffer);
glDeleteFramebuffers(1, &frameBuffer);
glDeleteTextures(1, &texKitten);
glDeleteTextures(1, &texPuppy);
glDeleteProgram(screenShaderProgram);
glDeleteShader(screenFragmentShader);
glDeleteShader(screenVertexShader);
glDeleteProgram(sceneShaderProgram);
glDeleteShader(sceneFragmentShader);
glDeleteShader(sceneVertexShader);
glDeleteBuffers(1, &vboCube);
glDeleteBuffers(1, &vboQuad);
glDeleteVertexArrays(1, &vaoCube);
glDeleteVertexArrays(1, &vaoQuad);
glfwTerminate();
}
int main( void )
{
initGLFW();
initWindow();
initGLEW();
initKeyboard();
// Dark blue background
glClearColor(0.0f, 0.0f, 0.4f, 0.0f);
int size = 5;
float* map = generateHeightMap(size);
printf("generated map\n" );
std::vector<glm::vec3> terrain;
mapHeightsToPoints(terrain, map, size);
printf("mapped to points\n");
// GLuint* indices = generateIndices(terrain, size);
uint terrainVertexAmount = size* size * 3;
uint indiceAmount = 3 * (1 << size);
for(int i = 0; i < terrain.size(); ++i){
printf("[%f, %f, %f]\n", terrain[i].x, terrain[i].y, terrain[i].z);
}
printf("vertices %d\n", terrainVertexAmount);
GLuint VertexArrayID = newVertexArray();
// Create and compile our GLSL program from the shaders
GLuint programID = LoadShaders( "SimpleVertexShader.vertexshader", "SimpleFragmentShader.fragmentshader" );
printf("loaded\n");
initMatrices(programID);
GLuint vertexbuffer = newVertexBuffer(terrainVertexAmount, &terrain);
double lastTime = glfwGetTime();
int nbFrames = 0;
printf("loop\n");
initDepth();
do{
// Clear the screen
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Use our shader
glUseProgram(programID);
// TODO
// recalculateMatrices();
// Send our transformation to the currently bound shader,
// in the "MVP" uniform
glUniformMatrix4fv(MatrixID, 1, GL_FALSE, &MVP[0][0]);
// 1rst attribute buffer : vertices
bindVertexBuffer(vertexbuffer);
// Draw the triangle !
glDrawArrays(GL_TRIANGLE_FAN, 0, terrainVertexAmount); // 3 indices starting at 0 -> 1 triangle
glDisableVertexAttribArray(0);
// Swap buffers
glfwSwapBuffers(window);
glfwPollEvents();
// measureTime(lastTime, &nbFrames);
} // Check if the ESC key was pressed or the window was closed
while( glfwGetKey(window, GLFW_KEY_ESCAPE ) != GLFW_PRESS &&
glfwWindowShouldClose(window) == 0 );
// Cleanup VBO
glDeleteBuffers(1, &vertexbuffer);
glDeleteVertexArrays(1, &VertexArrayID);
glDeleteProgram(programID);
// Close OpenGL window and terminate GLFW
glfwTerminate();
// normal** ns = generateNormals(map, size);
return 0;
}
void WindowManager::init()
{
initGLFW();
initGLEW();
setGlStates();
}
//--------------------------------------------------
// Main
int main(int argc, char* argv[])
{
ErrorLog *log = ErrorLog::getInstance();
stringstream logStream;
//maintain an exact frame rate
const double frameDifferenceTime = 1.0 / FPS * 1000; // time to render a frame at a specific frame rate (in milliseconds)
double timeLastFrame = 0;
double timeThisFrame = 0;
double timeDifference = 0;
if (!initSDL())
{
logStream << "error initializing SDL!!" << endl;
log->reportError(logStream.str());
return -1;
}
if (!initOpenGL())
{
logStream << "error initializing OpenGL!!" << endl;
log->reportError(logStream.str());
return -1;
}
if (!initGLEW())
{
logStream << "error initializing GLEW!!" << endl;
log->reportError(logStream.str());
return -1;
}
logStream.str("");
logStream << "Using GLEW Version: " << glewGetString(GLEW_VERSION) << endl << endl;
log->reportError(logStream.str());
if (GLEW_VERSION_2_0)
{
logStream.str("");
logStream << "OpenGL 2.0 available" << endl << endl;
log->reportError(logStream.str());
}
else
{
logStream.str("");
logStream << "OpenGL 2.0 not available" << endl << endl;
log->reportError(logStream.str());
}
// check if necessary extensions to run the shader are available
if (!glewIsSupported("GL_ARB_shader_objects GL_ARB_vertex_shader GL_ARB_fragment_shader GL_ARB_vertex_program"))
{
logStream.str("");
logStream << "one or more extensions to run the shader are not available!!" << endl;
log->reportError(logStream.str());
return -1;
}
// check if necessary extensions to run cube mapping are available
if (!GL_ARB_texture_cube_map)
{
logStream.str("");
logStream << "GL_ARB_texture_cube_map extension not available!!" << endl;
log->reportError(logStream.str());
return -1;
}
input = new Input();
try
{
scene = new Scene(input);
}
catch (Exception e)
{
logStream.str("");
logStream << e.getMessage() << endl;
log->reportError(logStream.str());
return -1;
}
while (!input->keyPressed(SDLK_ESCAPE))
{
timeThisFrame = SDL_GetTicks(); // get time in ms
timeDifference = timeThisFrame - timeLastFrame;
// if time difference between this and the last frame is greater
// or equal than the specified frame time difference then render
// the frame
if (timeDifference >= frameDifferenceTime)
{
timeLastFrame = timeThisFrame;
input->update(); // Process any ocuring events
scene->update(timeDifference);
scene->render(); // Draw your graphics
}
else // if the timedifference is smaller, than sleep for a specified time
{
int timeToSleep = (int) (frameDifferenceTime - timeDifference); // in milliseconds
// the following stuff is a little bit ugly but there are different
// sleep functions for Unix and Windows systems
#ifdef WIN32
Sleep(timeToSleep);
#else
usleep(1000 * timeToSleep);
#endif
}
}
delete input;
delete scene;
SDL_Quit();
return 0;
}
GLWindow(eq::Window* window, Widget* widget) :
eq::GLWindow(window), widget(widget)
{
makeCurrent();
initGLEW();
}
bool COpenGLControl::initOpenGL(HINSTANCE hInstance, HWND* a_hWnd, int iMajorVersion, int iMinorVersion, void (*a_initScene)(LPVOID), void (*a_renderScene)(LPVOID), void(*a_releaseScene)(LPVOID), LPVOID lpParam)
{
if(!initGLEW(hInstance))return false;
hWnd = a_hWnd;
hDC = GetDC(*hWnd);
bool bError = false;
PIXELFORMATDESCRIPTOR pfd;
if(iMajorVersion <= 2)
{
memset(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DOUBLEBUFFER | PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 32;
pfd.cDepthBits = 32;
pfd.iLayerType = PFD_MAIN_PLANE;
int iPixelFormat = ChoosePixelFormat(hDC, &pfd);
if (iPixelFormat == 0)return false;
if(!SetPixelFormat(hDC, iPixelFormat, &pfd))return false;
// Create the old style context (OpenGL 2.1 and before)
hRC = wglCreateContext(hDC);
if(hRC)wglMakeCurrent(hDC, hRC);
else bError = true;
}
else if(WGLEW_ARB_create_context && WGLEW_ARB_pixel_format)
{
const int iPixelFormatAttribList[] =
{
WGL_DRAW_TO_WINDOW_ARB, GL_TRUE,
WGL_SUPPORT_OPENGL_ARB, GL_TRUE,
WGL_DOUBLE_BUFFER_ARB, GL_TRUE,
WGL_PIXEL_TYPE_ARB, WGL_TYPE_RGBA_ARB,
WGL_COLOR_BITS_ARB, 32,
WGL_DEPTH_BITS_ARB, 24,
WGL_STENCIL_BITS_ARB, 8,
0 // End of attributes list
};
int iContextAttribs[] =
{
WGL_CONTEXT_MAJOR_VERSION_ARB, iMajorVersion,
WGL_CONTEXT_MINOR_VERSION_ARB, iMinorVersion,
WGL_CONTEXT_FLAGS_ARB, WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
0 // End of attributes list
};
int iPixelFormat, iNumFormats;
wglChoosePixelFormatARB(hDC, iPixelFormatAttribList, NULL, 1, &iPixelFormat, (UINT*)&iNumFormats);
// PFD seems to be only redundant parameter now
if(!SetPixelFormat(hDC, iPixelFormat, &pfd))return false;
hRC = wglCreateContextAttribsARB(hDC, 0, iContextAttribs);
// If everything went OK
if(hRC) wglMakeCurrent(hDC, hRC);
else bError = true;
}
else bError = true;
if(bError)
{
// Generate error messages
char sErrorMessage[255], sErrorTitle[255];
sprintf(sErrorMessage, "OpenGL %d.%d is not supported! Please download latest GPU drivers!", iMajorVersion, iMinorVersion);
sprintf(sErrorTitle, "OpenGL %d.%d Not Supported", iMajorVersion, iMinorVersion);
MessageBox(*hWnd, sErrorMessage, sErrorTitle, MB_ICONINFORMATION);
return false;
}
renderScene = a_renderScene;
initScene = a_initScene;
releaseScene = a_releaseScene;
if(initScene != NULL)initScene(lpParam);
return true;
}
