// Helpers
SDL_Texture* CFontManager::TTFLoadText(float& out_fWidth, const char* szText, const SDL_Color& tColor, const float fHeight)
{
SDL_Surface* pTextSurface = TTF_RenderText_Blended(m_pTTFont, szText, tColor);
SDL_ERROR_CHECK(pTextSurface == NULL, "Unable to load text surface!");
SDL_Texture* pTextTexture = SDL_CreateTextureFromSurface(m_pRenderManager->GetRenderer(), pTextSurface);
SDL_ERROR_CHECK(pTextTexture == NULL, "Unable to create texture from text surface!");
out_fWidth = (static_cast<float>(pTextSurface->w) / pTextSurface->h) * fHeight;
SDL_FreeSurface(pTextSurface);
return pTextTexture;
}
void CFontManager::Initialize(CRenderManager* pRenderManager)
{
m_pRenderManager = pRenderManager;
SDL_ERROR_CHECK(TTF_Init() == -1, "SDL_ttf could not initialize!");
m_pTTFont = TTF_OpenFont("../Fonts/unispace.ttf", 72);
TTF_SetFontHinting(m_pTTFont, TTF_HINTING_LIGHT);
}
bool Window::init(bool enableVsync, int oglMajorVersion, int oglMinorVersion)
{
if (SDL_Init(SDL_INIT_VIDEO) != 0)
{
SDL_ERROR_CHECK();
return false;
}
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 8);
m_window = SDL_CreateWindow("Hello World!",
SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
m_width, m_height,
SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE);
if (!m_window)
{
SDL_ERROR_CHECK();
return false;
}
#ifndef EMSCRIPTEN
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, oglMajorVersion);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, oglMinorVersion);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
#endif
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
m_context = SDL_GL_CreateContext(m_window);
if (!m_context)
{
SHOW_ERROR("Failed to create OpenGL context. Make sure your GPU supports OpenGL " << oglMajorVersion << "." << oglMinorVersion);
std::stringstream ss;
ss << "Failed to create OpenGL context. Make sure your GPU supports OpenGL " << oglMajorVersion << "." << oglMinorVersion;
showErrorBox("Context Creation Error", ss.str());
return false;
}
setVsync(enableVsync);
glewExperimental = GL_TRUE;
GLenum err = glewInit();
if (err != GLEW_OK)
{
#ifdef EMSCRIPTEN
SHOW_ERROR("Error " << err << " occured when initializing glew: \n");
#else
const GLubyte *errString = gluErrorString(err);
SHOW_ERROR("Error " << err << " occured when initializing glew: \n" << errString);
std::stringstream ss;
ss << "Error " << err << " occured when initializing glew: \n" << errString;
showErrorBox("GLEW Initialization Error", ss.str());
#endif
return false;
}
// OpenGL 3.2+ might mistakenly report an invalid enum error. Ignore it:
glGetError();
SDL_ERROR_CHECK();
return true;
}
