Merge commit 'd94eccab99da355a1ad43494aec3c479b13b35dc' as 'external/parallel-rdp/parallel-rdp-standalone'

external/parallel-rdp/parallel-rdp-standalone/vulkan/semaphore_manager.cpp

@@ -0,0 +1,68 @@
+/* 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 "semaphore_manager.hpp"
+#include "device.hpp"
+
+namespace Vulkan
+{
+void SemaphoreManager::init(Device *device_)
+{
+	device = device_;
+	table = &device->get_device_table();
+}
+
+SemaphoreManager::~SemaphoreManager()
+{
+	for (auto &sem : semaphores)
+		table->vkDestroySemaphore(device->get_device(), sem, nullptr);
+}
+
+void SemaphoreManager::recycle(VkSemaphore sem)
+{
+	if (sem != VK_NULL_HANDLE)
+		semaphores.push_back(sem);
+}
+
+VkSemaphore SemaphoreManager::request_cleared_semaphore()
+{
+	if (semaphores.empty())
+	{
+		VkSemaphoreCreateInfo info = { VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO };
+		VkSemaphore semaphore;
+
+		if (table->vkCreateSemaphore(device->get_device(), &info, nullptr, &semaphore) != VK_SUCCESS)
+		{
+			LOGE("Failed to create semaphore.\n");
+			semaphore = VK_NULL_HANDLE;
+		}
+
+		return semaphore;
+	}
+	else
+	{
+		auto sem = semaphores.back();
+		semaphores.pop_back();
+		return sem;
+	}
+}
+}