void display(SDL_Window *win,RECT menu[], TTF_Font *font, SDL_Rect v)
{
glClearColor(1, 1, 1, 1);
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0.0, 0.0, 0.0);
//glLineWidth(3);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
gluOrtho2D((GLfloat)v.x,(GLfloat)v.w,(GLfloat)v.y,(GLfloat)v.h);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
draw_menu(menu, font);
glPopMatrix();
draw_fun();
SDL_GL_SwapWindow(win);
}
void draw(void(*draw_fun)()) {
//-------------------------
//and now you can render to GL_TEXTURE_2D
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb);
//-------------------------
//std::cout << "prepare to render" << std::endl;
prep_ortho();
//-------------------------
glDisable(GL_TEXTURE_2D);
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
//-------------------------
draw_fun();
//render_tri();
//Bind 0, which means render to back buffer
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
}