Squashed 'external/parallel-rdp/parallel-rdp-standalone/' content from commit 3f59f61f2c

git-subtree-dir: external/parallel-rdp/parallel-rdp-standalone
git-subtree-split: 3f59f61f2c1c56424356003041df5e4a10612049

vulkan/event_manager.cpp

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+/* Copyright (c) 2017-2023 Hans-Kristian Arntzen
+ *
+ * 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 "event_manager.hpp"
+#include "device.hpp"
+
+namespace Vulkan
+{
+EventManager::~EventManager()
+{
+	if (!workaround)
+		for (auto &event : events)
+			table->vkDestroyEvent(device->get_device(), event, nullptr);
+}
+
+void EventManager::recycle(VkEvent event)
+{
+	if (!workaround && event != VK_NULL_HANDLE)
+	{
+		table->vkResetEvent(device->get_device(), event);
+		events.push_back(event);
+	}
+}
+
+VkEvent EventManager::request_cleared_event()
+{
+	if (workaround)
+	{
+		// Can't use reinterpret_cast because of MSVC.
+		return (VkEvent) ++workaround_counter;
+	}
+	else if (events.empty())
+	{
+		VkEvent event;
+		VkEventCreateInfo info = { VK_STRUCTURE_TYPE_EVENT_CREATE_INFO };
+		table->vkCreateEvent(device->get_device(), &info, nullptr, &event);
+		return event;
+	}
+	else
+	{
+		auto event = events.back();
+		events.pop_back();
+		return event;
+	}
+}
+
+void EventManager::init(Device *device_)
+{
+	device = device_;
+	table = &device->get_device_table();
+	workaround = device_->get_workarounds().emulate_event_as_pipeline_barrier;
+}
+}