vulkan-wsi-layer/wsi/wayland/present_timing_handler.cpp

/*
 * Copyright (c) 2025 Arm Limited.
 *
 * SPDX-License-Identifier: MIT
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
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 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
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 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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/**
 * @file present_timing_handler.cpp
 *
 * @brief Contains the functionality to implement features for present timing extension.
 */

#include "present_timing_handler.hpp"
#include <array>

wsi_ext_present_timing_wayland::wsi_ext_present_timing_wayland(const util::allocator &allocator, VkDevice device,
                                                               uint32_t num_images)
   : wsi_ext_present_timing(allocator, device, num_images)
{
}

util::unique_ptr<wsi_ext_present_timing_wayland> wsi_ext_present_timing_wayland::create(
   VkTimeDomainKHR image_first_pixel_visible_time_domain, const util::allocator &allocator, VkDevice device,
   uint32_t num_images)
{
   std::array<util::unique_ptr<wsi::vulkan_time_domain>, 2> time_domains_array = {
      allocator.make_unique<wsi::vulkan_time_domain>(VK_PRESENT_STAGE_QUEUE_OPERATIONS_END_BIT_EXT,
                                                     VK_TIME_DOMAIN_DEVICE_KHR),
      allocator.make_unique<wsi::vulkan_time_domain>(VK_PRESENT_STAGE_IMAGE_FIRST_PIXEL_VISIBLE_BIT_EXT,
                                                     image_first_pixel_visible_time_domain)
   };

   return wsi_ext_present_timing::create<wsi_ext_present_timing_wayland>(allocator, time_domains_array, device,
                                                                         num_images);
}

VkResult wsi_ext_present_timing_wayland::get_swapchain_timing_properties(
   uint64_t &timing_properties_counter, VkSwapchainTimingPropertiesEXT &timing_properties)
{
   timing_properties_counter = 0;
   timing_properties.refreshDuration = 0;
   timing_properties.variableRefreshDelay = 0;

   return VK_SUCCESS;
}