void zz_manager_texture::unbind_notset ()
{
zz_hash_table<zz_node*>::iterator it, it_end;
zz_hash_table<zz_node*> * nodes = get_hash_table();
zz_texture * tex;
if (!nodes) return;
zz_camera * cam = znzin->get_camera();
if (cam) {
if (cam->get_speed() > 0) {
// now, camera is moving, so do not unbind textures
//ZZ_LOG("manager_texture: camera is moving\n");
return;
}
}
unsigned int max_tex_mem = znzin->renderer->get_max_texmem() >> 20; // byte -> megabyte
unsigned int ava_tex_mem = znzin->renderer->get_available_texmem() >> 20;
const unsigned int suff_tex_mem = 20; // sufficient available texture memory 20 MB
#if !defined(UNBIND_ALL)
if (ava_tex_mem > suff_tex_mem) {
if ((ava_tex_mem * 3) > max_tex_mem) {
return;
}
}
#endif
static zz_time s_accum_time = 0; // accumulated time
const zz_time max_accum_time = ZZ_MSEC_TO_TIME(1000); // default 1000 msec
s_accum_time += znzin->get_diff_time();
// we do not unbind in every frame. we do only after some time elapsed
// and the ratio is (ava_tex_mem / max_tex_mem)
if (s_accum_time*max_tex_mem < max_accum_time*ava_tex_mem) // s_accum_time < max_accum_time * (ava_tex_mem / max_tex_mem)
return;
zz_time current_time = znzin->get_current_time();
const zz_time MAX_DIFF_TIME = ZZ_MSEC_TO_TIME(10000); // default 10 second
texlist.clear();
for (it = nodes->begin(), it_end = nodes->end(); it != it_end; ++it) {
tex = static_cast<zz_texture*>(*it);
if (tex->get_lock_texture()) // skip texture that was locked for some reason
continue;
if (tex->get_last_settime() == current_time) // skip if it was used in the current frame
continue;
if (!tex->get_device_updated()) // skip if it was not device-ready
continue;
if (entrance_line.find(tex)) // skip if it is manager-controlled. it will be flushed by manager queue mechanism
continue;
if (exit_line.find(tex)) // skip if it is manager-controlled. it will be flushed by manager queue mechanism
continue;
texlist.push_back(tex); // insert the texture into the texlist
}
if (texlist.empty()) // skip if the texlist is empty
return;
texture_settime_compare texture_cf; // declare texture comparision function
// sort texture list by last_settime
std::sort(texlist.begin(), texlist.end(), texture_cf);
tex = *texlist.begin(); // consider only the first
assert(tex);
// skip if the texture is recently used.
if ((current_time - tex->get_last_settime()) < MAX_DIFF_TIME)
return;
s_accum_time = 0; // intialize accum_time
tex->unbind_device();
tex->update_last_settime();
}
// If time_to_update is zero, all accumulated time info is ignored. it means *new start*!!.
// When last frame was so heavy, we should refresh it.
// If not, we will get slow frames in a while.
void zz_manager::update (zz_time time_to_update)
{
if ((exit_line.size() == 0) && (entrance_line.size() == 0)) return;
sort_waitings(); // sort lines
if (!znzin->get_rs()->use_delayed_loading) {
exit_line.flush_n_pop((int)exit_line.size());
entrance_line.flush_n_pop((int)entrance_line.size());
entrance_time_accumulated = 0;
exit_time_accumulated = 0;
return;
}
if (time_to_update == 0) { // initialize acculumated
entrance_time_accumulated = 0;
exit_time_accumulated = 0;
}
else {
// distribute time
entrance_time_accumulated += 1 + time_to_update/10;
exit_time_accumulated += 1 + time_to_update/10;
}
zz_node * node;
zz_time t;
zz_time time_weight;
//--------------------------------------------------------------------------------
// for exit
node = exit_line.back();
t = ZZ_TIME_TO_MSEC(exit_time_accumulated);
time_weight = (!node) ? t : static_cast<zz_time>(node->get_load_weight());
// not to unload reusing nodes, bound to max_flush
int max_flush = (exit_line.size() > num_reuse) ? (exit_line.size() - num_reuse) : 0;
try {
while ((max_flush-- > 0) && node && (t > time_weight)) {
//ZZ_LOG("manager: [%s]->update() exit->flush(%s)\n", get_name(), node ? node->get_name() : "(null)");
exit_line.flush_n_pop(1);
node = exit_line.back();
if (!node) continue; // skip if no node
exit_time_accumulated -= ZZ_MSEC_TO_TIME(t);
t = ZZ_TIME_TO_MSEC(exit_time_accumulated);
time_weight = static_cast<zz_time>(node->get_load_weight());
}
}
catch (...) {
if (node) {
ZZ_LOG("manager: [%s]->update() exit->flush(%s) failed.\n", get_name(), node->get_name());
}
else {
ZZ_LOG("manager: [%s]->update() exit->flush() failed.\n", get_name());
}
throw;
}
//--------------------------------------------------------------------------------
//--------------------------------------------------------------------------------
// for entrance
node = entrance_line.back();
t = ZZ_TIME_TO_MSEC(entrance_time_accumulated);
time_weight = (!node) ? t : static_cast<zz_time>(node->get_load_weight());
try {
while (node && (t > time_weight)) {
//ZZ_LOG("manager: [%s]->update() entrance->flush(%s)\n", get_name(), node ? node->get_name() : "(null)");
if (entrance_line.flush_node(node)) {
entrance_time_accumulated -= ZZ_MSEC_TO_TIME(t);
entrance_line.pop();
}
else { // not loaded, so reinsert to front
entrance_line.pop();
entrance_line.push(node); // re-insert
}
node = entrance_line.back();
if (!node) continue; // skip if no node
t = ZZ_TIME_TO_MSEC(entrance_time_accumulated);
time_weight = static_cast<zz_time>(node->get_load_weight());
}
}
catch (...) {
if (node) {
ZZ_LOG("manager: [%s]->update() entrance->flush(%s) failed.\n", get_name(), node->get_name());
}
else {
ZZ_LOG("manager: [%s]->update() entrance->flush() failed.\n", get_name());
}
throw;
}
//--------------------------------------------------------------------------------
}
