WRAPPER_VISIBILITY BOOL
WRAPPER(epoxy_wglMakeAssociatedContextCurrentAMD)(HGLRC hglrc)
{
BOOL ret = epoxy_wglMakeAssociatedContextCurrentAMD_unwrapped(hglrc);
epoxy_handle_external_wglMakeCurrent();
return ret;
}
WRAPPER_VISIBILITY BOOL
WRAPPER(epoxy_wglMakeCurrent)(HDC hdc, HGLRC hglrc)
{
BOOL ret = epoxy_wglMakeCurrent_unwrapped(hdc, hglrc);
epoxy_handle_external_wglMakeCurrent();
return ret;
}
WRAPPER_VISIBILITY BOOL
WRAPPER(epoxy_wglMakeContextCurrentEXT)(HDC hDrawDC,
HDC hReadDC,
HGLRC hglrc)
{
BOOL ret = epoxy_wglMakeContextCurrentEXT_unwrapped(hDrawDC, hReadDC,
hglrc);
epoxy_handle_external_wglMakeCurrent();
return ret;
}
bool SDLWindow::createContext() {
//Init SDL
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS) < 0) {
fprintf(stderr, "SDL Error: %s", SDL_GetError());
return false;
}
// Check to see if we are forcing the legacy profile.
bool forceLegacy = false;
for (auto cmd : GameState::gState->mCmdArgs) {
if (strcasecmp(cmd.c_str(), "-legacygl") == 0) {
forceLegacy = true;
break;
}
}
SDL_GLContext context;
// First try the core profile, unless we specified the legacy profile
// as a command line argument.
bool success = false;
GLContext profileChosen = GLContext::INVALID;
if (!forceLegacy) {
IO::printf("Attempting to create a core OpenGL context.");
success = createGLContextAndWindow(GLContext::CORE, window, context);
if (success)
profileChosen = GLContext::CORE;
}
if (forceLegacy || !success) {
if (!success)
IO::printf("Failed to create a core OpenGL context. Attempting to create a legacy context.\n");
if (forceLegacy)
IO::printf("Forcing the legacy OpenGL context. Attempting to create a legacy context.\n");
success = createGLContextAndWindow(GLContext::LEGACY, window, context);
if (success)
profileChosen = GLContext::LEGACY;
}
// If we still didn't have success, bail.
if (!success) {
IO::printf("Failed to create an OpenGL context. Make sure that you have at least OpenGL 2.1.\n");
return false;
}
SDL_GL_MakeCurrent(window, context);
#ifdef _WIN32
epoxy_handle_external_wglMakeCurrent();
#endif
// Initialize the GL library
if (profileChosen == GLContext::CORE)
GL::createGL<GL33>();
else
GL::createGL<GL21>();
// for the love of god please not software rendering.
#if defined(_WIN32) || defined(__APPLE__)
{
std::string renderer = reinterpret_cast<const char*>(glGetString(GL_RENDERER));
#ifdef _WIN32
if (renderer.find("Microsoft") != std::string::npos) {
#else
if (renderer.find("APPLE") != std::string::npos) {
#endif
IO::printf("Unable to create a hardware accelerated OpenGL driver. Please make sure that you have OpenGL drivers downloaded and they are up to date.\n");
return false;
}
}
#endif
// Let the GL library store this context.
glBindContextEXT(context);
IO::printf("System Memory: %dMB\n", PlatformEx::getPhysicalSystemRam());
IO::printf("OpenGL Core Profile Info\n");
IO::printf(" Version: %s\n", glGetString(GL_VERSION));
IO::printf(" Vendor: %s\n", glGetString(GL_VENDOR));
IO::printf(" Renderer: %s\n", glGetString(GL_RENDERER));
IO::printf(" Shading: %s\n", glGetString(GL_SHADING_LANGUAGE_VERSION));
IO::printf(" VRAM: %uMB\n", glGetVideoRamEXT());
//Use Vsync
setVerticalSync(true);
//Lock cursor
lockCursor(true);
// we bind a blank VAO, as it's required for core profile
glGenVertexArrays(1, &mVAO);
glBindVertexArray(mVAO);
return true;
}
void SDLWindow::destroyContext() {
// clean up VAO
if (mVAO)
glDeleteVertexArrays(1, &mVAO);
SDL_GL_DeleteContext(context);
glBindContextEXT(nullptr);
SDL_Quit();
}
void SDLWindow::swapBuffers() {
SDL_GL_SwapWindow(window);
}
