godot/servers/visual/visual_server_wrap_mt.cpp
Gustav Lund 35eb7f2d6a Rasterizers are now in sync with engine
The rasterisers (both GLES3 and GLES2) were calculating their own frame delta time
This fix lets the rasterizers get the frame delta through the draw call
That way any regulations to the frame step from the main script will not cause particle systems to process at a different step than the rest of the Engine.

Remove unused rasterizer storage variable

frame.prev_tick variable were not used anywhere and has been removed
2018-06-05 16:33:02 +02:00

197 lines
5.8 KiB
C++

/*************************************************************************/
/* visual_server_wrap_mt.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "visual_server_wrap_mt.h"
#include "os/os.h"
#include "project_settings.h"
void VisualServerWrapMT::thread_exit() {
exit = true;
}
void VisualServerWrapMT::thread_draw(bool p_swap_buffers, double frame_step) {
if (!atomic_decrement(&draw_pending)) {
visual_server->draw(p_swap_buffers, frame_step);
}
}
void VisualServerWrapMT::thread_flush() {
atomic_decrement(&draw_pending);
}
void VisualServerWrapMT::_thread_callback(void *_instance) {
VisualServerWrapMT *vsmt = reinterpret_cast<VisualServerWrapMT *>(_instance);
vsmt->thread_loop();
}
void VisualServerWrapMT::thread_loop() {
server_thread = Thread::get_caller_id();
OS::get_singleton()->make_rendering_thread();
visual_server->init();
exit = false;
draw_thread_up = true;
while (!exit) {
// flush commands one by one, until exit is requested
command_queue.wait_and_flush_one();
}
command_queue.flush_all(); // flush all
visual_server->finish();
}
/* EVENT QUEUING */
void VisualServerWrapMT::sync() {
if (create_thread) {
atomic_increment(&draw_pending);
command_queue.push_and_sync(this, &VisualServerWrapMT::thread_flush);
} else {
command_queue.flush_all(); //flush all pending from other threads
}
}
void VisualServerWrapMT::draw(bool p_swap_buffers, double frame_step) {
if (create_thread) {
atomic_increment(&draw_pending);
command_queue.push(this, &VisualServerWrapMT::thread_draw, p_swap_buffers, frame_step);
} else {
visual_server->draw(p_swap_buffers, frame_step);
}
}
void VisualServerWrapMT::init() {
if (create_thread) {
print_line("CREATING RENDER THREAD");
OS::get_singleton()->release_rendering_thread();
if (create_thread) {
thread = Thread::create(_thread_callback, this);
print_line("STARTING RENDER THREAD");
}
while (!draw_thread_up) {
OS::get_singleton()->delay_usec(1000);
}
print_line("DONE RENDER THREAD");
} else {
visual_server->init();
}
}
void VisualServerWrapMT::finish() {
if (thread) {
command_queue.push(this, &VisualServerWrapMT::thread_exit);
Thread::wait_to_finish(thread);
memdelete(thread);
thread = NULL;
} else {
visual_server->finish();
}
texture_free_cached_ids();
shader_free_cached_ids();
material_free_cached_ids();
mesh_free_cached_ids();
multimesh_free_cached_ids();
immediate_free_cached_ids();
skeleton_free_cached_ids();
directional_light_free_cached_ids();
omni_light_free_cached_ids();
spot_light_free_cached_ids();
reflection_probe_free_cached_ids();
gi_probe_free_cached_ids();
particles_free_cached_ids();
camera_free_cached_ids();
viewport_free_cached_ids();
environment_free_cached_ids();
scenario_free_cached_ids();
instance_free_cached_ids();
canvas_free_cached_ids();
canvas_item_free_cached_ids();
canvas_light_occluder_free_cached_ids();
canvas_occluder_polygon_free_cached_ids();
}
void VisualServerWrapMT::set_use_vsync_callback(bool p_enable) {
singleton_mt->call_set_use_vsync(p_enable);
}
VisualServerWrapMT *VisualServerWrapMT::singleton_mt = NULL;
VisualServerWrapMT::VisualServerWrapMT(VisualServer *p_contained, bool p_create_thread) :
command_queue(p_create_thread) {
singleton_mt = this;
OS::switch_vsync_function = set_use_vsync_callback; //as this goes to another thread, make sure it goes properly
visual_server = p_contained;
create_thread = p_create_thread;
thread = NULL;
draw_pending = 0;
draw_thread_up = false;
alloc_mutex = Mutex::create();
pool_max_size = GLOBAL_GET("memory/limits/multithreaded_server/rid_pool_prealloc");
if (!p_create_thread) {
server_thread = Thread::get_caller_id();
} else {
server_thread = 0;
}
}
VisualServerWrapMT::~VisualServerWrapMT() {
memdelete(visual_server);
memdelete(alloc_mutex);
//finish();
}