void
BufferRefImage::update()
{
if (!need_update())
return;
cerr << "BufferRefImage: Updated!\n";
assert (_view != 0);
VIEWimpl *impl = _view->impl();
assert(impl != 0);
_observing = false;
impl->draw_setup();
impl->draw_frame();
_observing=true;
glViewport(0,0,_width,_height);
copy_to_ram();
_dirty = 0;
}
void
HaloRefImage::update()
{
// render the scene and read pixels to main memory
// and/or texture memory
if (!need_update())
return;
static bool debug = Config::get_var_bool("DEBUG_HALO_UPDATE",false);
err_adv(debug, "HaloRefImage::update: updating...");
check_resize();
glPushAttrib(
GL_LINE_BIT |
GL_DEPTH_BUFFER_BIT |
GL_ENABLE_BIT |
GL_LIGHTING_BIT |
GL_VIEWPORT | // XXX - not needed
GL_COLOR_BUFFER_BIT | // XXX - not needed
GL_TEXTURE_BIT // XXX - not needed
);
// XXX - remove this:
assert(_view && _view == VIEW::peek());
// set up lights
_view->setup_lights();
// set default state
// XXX - check
glLineWidth(1.0); // GL_LINE_BIT
glDepthMask(GL_TRUE); // GL_DEPTH_BUFFER_BIT
glDepthFunc(GL_LESS); // GL_DEPTH_BUFFER_BIT
glEnable(GL_DEPTH_TEST); // GL_DEPTH_BUFFER_BIT
glDisable(GL_NORMALIZE); // GL_ENABLE_BIT
glDisable(GL_BLEND); // GL_ENABLE_BIT
glEnable(GL_CULL_FACE); // GL_ENABLE_BIT
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
glEnable(GL_COLOR_MATERIAL); // GL_ENABLE_BIT
glShadeModel(GL_SMOOTH); // GL_LIGHTING_BIT
// set viewport to ref image size:
glViewport(0,0,_width,_height); // GL_VIEWPORT_BIT
draw_objects(_view->drawn());
// copy image to main memory or texture memory
// (or both) as requested:
if (_update_main_mem) {
if (use_fbos)
glBindFramebuffer(GL_READ_FRAMEBUFFER, _fbo);
else
glReadBuffer(GL_AUX0); //because the image is constructed in aux0
copy_to_ram();
if (use_fbos)
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
else
glReadBuffer(GL_BACK);
}
if (_update_tex_mem)
copy_to_tex_aux(); //copies from aux0
// clear update flags until next update request is made:
_update_main_mem = _update_tex_mem = false;
glPopAttrib();
// restore viewport to window size:
int w, h;
_view->get_size(w,h);
glViewport(0,0,w,h);
}
