void show_system_info()
{
#ifdef USE_SDL
Log << "System information:\n";
const SDL_version *linked_version = SDL_Linked_Version();
SDL_version compiled_version;
SDL_VERSION(&compiled_version);
Log << "Compiled with SDL version: " << (int)compiled_version.major << "." << (int)compiled_version.minor << "." << (int)compiled_version.patch << "\n";
Log << "Running with SDL version: " << (int)linked_version->major << "." << (int)linked_version->minor << "." << (int)linked_version->patch << "\n";
if((compiled_version.major != linked_version->major)||(compiled_version.minor != linked_version->minor)||(compiled_version.patch != linked_version->patch))
{
Log << "Warning: SDL version mismatch\n";
}
Log << "\n";
const SDL_version *image_linked_version = IMG_Linked_Version();
SDL_version image_compiled_version;
SDL_IMAGE_VERSION(&image_compiled_version);
Log << "Compiled with SDL_image version: " << (int)image_compiled_version.major << "." << (int)image_compiled_version.minor << "." << (int)image_compiled_version.patch << "\n";
Log << "Running with SDL_image version: " << (int)image_linked_version->major << "." << (int)image_linked_version->minor << "." << (int)image_linked_version->patch << "\n";
if((image_compiled_version.major != image_linked_version->major)||(image_compiled_version.minor != image_linked_version->minor)||(image_compiled_version.patch != image_linked_version->patch))
{
Log << "Warning: SDL_image version mismatch\n";
}
Log << "\n";
#endif
}
void GraphicsSDL::print_sdl_img_version()
{
// show SDL_image version
SDL_version ver_compiled;
const SDL_version * ver_img_current = IMG_Linked_Version();
SDL_IMAGE_VERSION(&ver_compiled);
printf("[gfx] SDL_image %d.%d.%d loaded.\n",
ver_img_current->major, ver_img_current->minor, ver_img_current->patch);
}
void MainManager::initSDLimg()
{
log_.i("Initializing SDL_img");
int imgFlags = IMG_INIT_PNG | IMG_INIT_JPG;
int imgFlagsInit = IMG_Init(imgFlags);
if ((imgFlagsInit & imgFlags) != imgFlags)
throw log_.exception("Failed to initialize SDL_img", SDL_GetError);
atexit(IMG_Quit);
// Write version information to log
SDL_version compiled;
SDL_IMAGE_VERSION(&compiled);
logSDLVersion("SDL_image", compiled, *IMG_Linked_Version());
}
int SDL_imgver(){
SDL_version compile_version;
auto const SDL_version *link_version=IMG_Linked_Version();
SDL_IMAGE_VERSION(&compile_version);
printf("compiled with SDL_image version: %d.%d.%d\n",
compile_version.major,
compile_version.minor,
compile_version.patch);
printf("running with SDL_image version: %d.%d.%d\n",
link_version->major,
link_version->minor,
link_version->patch);
}
int main(int argc, char *argv[])
{
(void) argc;
(void) argv;
if (SDL_Init(SDL_INIT_EVERYTHING) == -1)
std::cout << "Failed to initialize SDL" << SDL_GetError() << std::endl;
std::cout << "Hello SDL!" << std::endl;
// Display SDL version information
SDL_version compiled;
SDL_version linked;
SDL_VERSION(&compiled);
SDL_GetVersion(&linked);
logSDLVersion(std::cout, "SDL", compiled, linked, SDL_GetRevision());
// Initialize SDL_image and display version information
int imgFlags = IMG_INIT_PNG | IMG_INIT_JPG;
int imgFlagsInit = IMG_Init(imgFlags);
if ((imgFlagsInit & imgFlags) != imgFlags)
std::cout << "Failed to initialize SDL_image:"
<< IMG_GetError() << std::endl;
std::cout << "Hello SDL_image!" << std::endl;
SDL_IMAGE_VERSION(&compiled);
logSDLVersion(std::cout, "SDL_image", compiled, *IMG_Linked_Version(), "");
// Initialize SDL_mixer and display version information
int mixFlags = MIX_INIT_OGG;
int mixFlagsInit = Mix_Init(mixFlags);
if ((mixFlagsInit & mixFlags) != mixFlags) {
std::cout << "Failed to initialize SDL_mixer"
<< Mix_GetError() << std::endl;
}
if (Mix_OpenAudio(22050, MIX_DEFAULT_FORMAT, 2, 1024) == -1) {
std::cout << "Failed to acquire sound device"
<< Mix_GetError() << std::endl;
}
std::cout << "Hello SDL_mixer!" << std::endl;
SDL_MIXER_VERSION(&compiled);
logSDLVersion(std::cout, "SDL_mixer", compiled, *Mix_Linked_Version(), "");
logSDLMixerMediaInfo(std::cout);
// Initialize SDL_mixer and display version information
if (TTF_Init() != 0)
std::cout << "Failed to initialize SDL_ttf:"
<< SDL_GetError() << std::endl;
std::cout << "Hello SDL_ttf!" << std::endl;
SDL_TTF_VERSION(&compiled);
logSDLVersion(std::cout, "SDL_ttf", compiled, *TTF_Linked_Version(), "");
// Create a window and OpenGL glContext using SDL and GLEW
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,
SDL_GL_CONTEXT_PROFILE_CORE);
SDL_Window* window = SDL_CreateWindow("SDL Window",
SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED,
640, 480,
SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL);
SDL_GLContext glContext = nullptr;
const std::pair<int, int> glVersions[11]
{{4, 4}, {4, 3}, {4, 2}, {4, 1}, {4, 0},
{3, 3}, {3, 2}, {3, 1}, {3, 0},
{2, 1}, {2, 0}
};
const std::string glName = "OpenGL";
for (auto& glVersion : glVersions) {
std::cout << "Trying to create " << glName << " " << glVersion.first << "."
<< glVersion.second << " glContext" << std::endl;
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, glVersion.first);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, glVersion.second);
glContext = SDL_GL_CreateContext(window);
if (glContext != nullptr)
break;
}
if (glContext == nullptr)
std::cout << "Failed to create OpenGL Context " << std::endl;
bool isOk = SDL_GL_MakeCurrent(window, glContext) <= 0;
if (!isOk)
std::cout << "Failed to set OpenGL context" << SDL_GetError() << std::endl;
glewExperimental = true;
if (glewInit() != GLEW_OK)
std::cout << "Failed to initialize GLEW" << std::endl;
logAcquiredGlVersion(std::cout, glName);
logOpenGLContextInfo(std::cout);
logGraphicsDriverInfo(std::cout);
glClearColor(0.1f, 0.2f, 0.3f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
SDL_GL_SwapWindow(window);
// Wait for user event before closing
bool isRunning = true;
SDL_Event event;
while (isRunning) {
while (SDL_PollEvent(&event)) {
if (event.type == SDL_KEYDOWN &&
event.key.keysym.scancode == SDL_SCANCODE_ESCAPE)
isRunning = false;
else if (event.type == SDL_QUIT)
isRunning = false;
}
SDL_Delay(30);
}
// Cleanup
SDL_DestroyWindow(window);
SDL_GL_DeleteContext(glContext);
IMG_Quit();
const int nOpenAudio = Mix_QuerySpec(nullptr, nullptr, nullptr);
for (int i = 0 ; i < nOpenAudio ; ++i)
Mix_CloseAudio();
while (Mix_Init(0))
Mix_Quit();
TTF_Quit();
SDL_Quit();
return 0;
}
bool SDLWrapper::initialize(){
bool successSDL = false;
bool successIMG = false;
bool successMixer = false;
bool successTTF = false;
SDL_version compiled;
Log(DEBUG) << "Initializing systems...";
// Initializing SDL_TTF.
const int ttfInit = TTF_Init();
if(ttfInit == 0){
successTTF = true;
SDL_TTF_VERSION(&compiled);
SDLWrapper::logSDLVersion("SDL_TTF", compiled);
}
else{
Log(ERROR) << "Could not initialize TTF." << TTF_GetError();
}
// Initializing SDL with initFlags.
const Uint32 initFlags = SDL_INIT_EVERYTHING;
const int sdlInit = SDL_Init(initFlags);
if(sdlInit == 0){
successSDL = true;
SDL_version linked;
SDL_VERSION(&compiled);
SDL_GetVersion(&linked);
SDLWrapper::logSDLVersion("SDL", compiled, SDL_GetRevision());
}
else{
Log(ERROR) << "Could not initialize SDL." << SDL_GetError();
}
// Initializing SDL_image with imgFlags.
const Uint32 imgFlags = IMG_INIT_PNG;
if((IMG_Init(imgFlags) & imgFlags)){
successIMG = true;
SDL_IMAGE_VERSION(&compiled);
SDLWrapper::logSDLVersion("SDL_image", compiled);
}
else{
Log(ERROR) << "Could not initialize SDL_Image." << IMG_GetError();
}
// Initializing SDL_mixer.
const int frequency = 44100;
const int channels = 2;
const int chunksize = 4096;
const int initialized = Mix_OpenAudio(frequency, MIX_DEFAULT_FORMAT, channels, chunksize);
if(initialized == 0){
successMixer = true;
SDL_MIXER_VERSION(&compiled);
SDLWrapper::logSDLVersion("SDL_mixer", compiled);
}
else{
Log(ERROR) << "Could not initialize SDL_Mixer" << Mix_GetError();
}
// If even one system fails to initialize, returns false.
return (successSDL && successIMG && successMixer && successTTF);
}
void Game::init(Window* window) {
m_window = window;
//TODO: use a proper logging lib
std::cout << "Initializing game " + m_gameName << "\n";
// Initialize SDL sub systems
SDL_Init(SDL_INIT_EVERYTHING);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
m_window->init();
// Do not do any openGl call before the OpenGL Context
// is created (in the window.init() method)
Utils::logGlErrors("SDL Init failed");
// TODO: configure the image format accepted (enum)
int flags = IMG_INIT_JPG | IMG_INIT_PNG;
int initializedFlags = IMG_Init(flags);
if((initializedFlags & flags) != flags) {
std::cerr << "IMG_Init: Failed to init required jpg and png support!\n";
std::cerr << "IMG_Init: " << IMG_GetError() << std::endl;
}
Utils::logGlErrors("SDL_Image Init failed");
SDL_version compile_version;
const SDL_version *link_version = IMG_Linked_Version();
SDL_IMAGE_VERSION(&compile_version);
printf("Compiled with SDL_image version: %d.%d.%d\n",
compile_version.major,
compile_version.minor,
compile_version.patch);
printf("Running with SDL_image version: %d.%d.%d\n",
link_version->major,
link_version->minor,
link_version->patch);
#ifndef __APPLE__
glewExperimental = true;
GLenum err = glewInit();
if (err != GLEW_OK) {
fatalError("GLEW init failed!");
}
#endif
//Utils::logGlErrors("GLEW Init failed");
glm::vec4 backgroundColor = m_backgroundColor.toVec4();
glClearColor(backgroundColor.r, backgroundColor.g, backgroundColor.b, backgroundColor.a);
// OpenGL Context - Set VSYNC: 0 => FALSE, 1 => TRUE
SDL_GL_SetSwapInterval(0);
std::cout << "OpenGL information: \n";
std::cout << "================== \n";
std::string unknown("Unknown");
const GLubyte* glVendor = glGetString(GL_VENDOR) ? glGetString(GL_VENDOR) : (const GLubyte*)unknown.c_str();
std::cout << " + Vendor: " << glVendor << "\n";
const GLubyte* glRenderer = glGetString(GL_RENDERER) ? glGetString(GL_RENDERER) : (const GLubyte*)unknown.c_str();
std::cout << " + Renderer: " << glRenderer << "\n";
const GLubyte* glVersion = glGetString(GL_VERSION) ? glGetString(GL_VERSION) : (const GLubyte*)unknown.c_str();
std::cout << " + GL Version: " << glVersion << "\n";
const GLubyte* glGLSL = glGetString(GL_SHADING_LANGUAGE_VERSION)
? glGetString(GL_SHADING_LANGUAGE_VERSION) : (const GLubyte*)unknown.c_str();
std::cout << " + GLSL: " << glGLSL << std::endl;
onInit();
m_isInitialized = true;
}