mirror of
https://github.com/godotengine/godot.git
synced 2024-11-22 20:23:53 +00:00
127458ed17
-Removed FuncRef, since Callable makes it obsolete -Removed int_types.h as its obsolete in c++11+ -Changed color names code
113 lines
3.9 KiB
C++
113 lines
3.9 KiB
C++
/*************************************************************************/
|
|
/* command_queue_mt.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2020 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 "command_queue_mt.h"
|
|
|
|
#include "core/config/project_settings.h"
|
|
#include "core/os/os.h"
|
|
|
|
void CommandQueueMT::lock() {
|
|
mutex.lock();
|
|
}
|
|
|
|
void CommandQueueMT::unlock() {
|
|
mutex.unlock();
|
|
}
|
|
|
|
void CommandQueueMT::wait_for_flush() {
|
|
// wait one millisecond for a flush to happen
|
|
OS::get_singleton()->delay_usec(1000);
|
|
}
|
|
|
|
CommandQueueMT::SyncSemaphore *CommandQueueMT::_alloc_sync_sem() {
|
|
int idx = -1;
|
|
|
|
while (true) {
|
|
lock();
|
|
for (int i = 0; i < SYNC_SEMAPHORES; i++) {
|
|
if (!sync_sems[i].in_use) {
|
|
sync_sems[i].in_use = true;
|
|
idx = i;
|
|
break;
|
|
}
|
|
}
|
|
unlock();
|
|
|
|
if (idx == -1) {
|
|
wait_for_flush();
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return &sync_sems[idx];
|
|
}
|
|
|
|
bool CommandQueueMT::dealloc_one() {
|
|
tryagain:
|
|
if (dealloc_ptr == (write_ptr_and_epoch >> 1)) {
|
|
// The queue is empty
|
|
return false;
|
|
}
|
|
|
|
uint32_t size = *(uint32_t *)&command_mem[dealloc_ptr];
|
|
|
|
if (size == 0) {
|
|
// End of command buffer wrap down
|
|
dealloc_ptr = 0;
|
|
goto tryagain;
|
|
}
|
|
|
|
if (size & 1) {
|
|
// Still used, nothing can be deallocated
|
|
return false;
|
|
}
|
|
|
|
dealloc_ptr += (size >> 1) + 8;
|
|
return true;
|
|
}
|
|
|
|
CommandQueueMT::CommandQueueMT(bool p_sync) {
|
|
command_mem_size = GLOBAL_DEF_RST("memory/limits/command_queue/multithreading_queue_size_kb", DEFAULT_COMMAND_MEM_SIZE_KB);
|
|
ProjectSettings::get_singleton()->set_custom_property_info("memory/limits/command_queue/multithreading_queue_size_kb", PropertyInfo(Variant::INT, "memory/limits/command_queue/multithreading_queue_size_kb", PROPERTY_HINT_RANGE, "1,4096,1,or_greater"));
|
|
command_mem_size *= 1024;
|
|
command_mem = (uint8_t *)memalloc(command_mem_size);
|
|
if (p_sync) {
|
|
sync = memnew(Semaphore);
|
|
}
|
|
}
|
|
|
|
CommandQueueMT::~CommandQueueMT() {
|
|
if (sync) {
|
|
memdelete(sync);
|
|
}
|
|
memfree(command_mem);
|
|
}
|