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https://gitlab.freedesktop.org/mesa/vulkan-wsi-layer.git
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01a96ed37b
* Changes the image state of ACQUIRED once the image has been presented as in shared present modes they are always in an acquired state. * Removes thread free image semaphore signalling logic for shared present modes as there is only single image available and is always in an acquired state. * Removes the reliance on the presentation thread for the shared present modes as it shouldn't be necessary for them as the headless mode does not share the buffer resource with any consumers. * Adds the ability for swapchain_image class to not signal present fence for presentation request. On shared presentation modes we do not need to use the present fence and it cannot be used as the swapchain only has a single image. * Adds support for present timing extension for shared present modes. * When shared preset mode is used, the timings returned are always * undefined as image is always in a state of being presented. Change-Id: I6a5a7c744fe0fc115001de55a305d253695faf9f Signed-off-by: Normunds Rieksts normunds.rieksts@arm.com
113 lines
4.2 KiB
C++
113 lines
4.2 KiB
C++
/*
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* Copyright (c) 2025 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/**
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* @file present_timing_handler.hpp
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*
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* @brief Contains the functionality to implement features for present timing extension.
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*/
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#pragma once
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#if VULKAN_WSI_LAYER_EXPERIMENTAL
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#include <wsi/extensions/present_timing.hpp>
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#include <wsi/swapchain_base.hpp>
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/**
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* @brief Present timing extension class
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*
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* This class implements present timing features declarations that are specific to the headless backend.
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*/
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class wsi_ext_present_timing_headless : public wsi::wsi_ext_present_timing
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{
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public:
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static util::unique_ptr<wsi_ext_present_timing_headless> create(const util::allocator &allocator,
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const VkDevice &device, uint32_t num_images,
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bool is_swapchain_using_shared_present_mode);
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VkResult get_swapchain_timing_properties(uint64_t &timing_properties_counter,
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VkSwapchainTimingPropertiesEXT &timing_properties) override;
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/**
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* @brief Get a monotonic time domain supported by the driver.
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*
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* If both MONOTONIC_RAW and MONOTONIC are supported, MONOTONIC_RAW is preferred.
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*
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* @return A supported monotonic time domain, or std::nullopt if no monotonic time domain is supported.
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*/
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std::optional<VkTimeDomainEXT> get_monotonic_domain() const
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{
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return m_monotonic_domain;
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}
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/**
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* @brief Get the current clock time by using clock_gettime with the monotonic time domain
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*
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* @return Current time in specified domain or std::nullopt in case of error.
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*/
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std::optional<uint64_t> get_current_clock_time_ns() const;
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/**
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* @brief Get the first pixel visible timestamp for the last presented image.
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*
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* @return first pixel visible timestamp for the last presented image or std::nullopt in case of error.
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*/
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std::optional<uint64_t> get_first_pixel_visible_timestamp_for_last_image() const;
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/**
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* @brief Caches the first pixel visible timestamp for the last presented image.
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*
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*/
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void set_first_pixel_visible_timestamp_for_last_image(uint64_t timestamp);
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/*
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* @brief The stages that are supported by the headless backend.
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*
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* @return A bitmask of supported presentation stages.
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*/
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VkPresentStageFlagsEXT stages_supported() override;
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private:
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wsi_ext_present_timing_headless(const util::allocator &allocator, VkDevice device, uint32_t num_images,
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std::optional<VkTimeDomainEXT> monotonic_domain,
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bool is_swapchain_using_shared_present_mode);
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/* Allow util::allocator to access the private constructor */
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friend util::allocator;
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/* Monotonic time domain supported by the driver */
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std::optional<VkTimeDomainEXT> m_monotonic_domain;
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/**
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* Timestamp for the last VK_PRESENT_STAGE_IMAGE_FIRST_PIXEL_VISIBLE_BIT_EXT stage.
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*/
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std::optional<uint64_t> m_first_pixel_visible_timestamp_for_last_image;
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/**
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* @brief Indicates whether the swapchain is using shared present mode.
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*/
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bool m_is_swapchain_using_shared_present_mode;
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};
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#endif
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