mirror of
https://github.com/EduApps-CDG/OpenDX
synced 2024-12-30 09:45:37 +01:00
de920458d7
Reduces locking overhead and potential stuttering issues when an app is spinning on the event.
84 lines
1.5 KiB
C++
84 lines
1.5 KiB
C++
#pragma once
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#include <mutex>
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#include "dxvk_include.h"
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namespace dxvk {
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/**
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* \brief Event status
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*/
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enum class DxvkEventStatus {
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Reset = 0,
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Signaled = 1,
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};
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/**
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* \brief Event
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*
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* A CPU-side fence that will be signaled after
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* all previous Vulkan commands recorded to a
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* command buffer have finished executing.
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*/
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class DxvkEvent : public RcObject {
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public:
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DxvkEvent();
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~DxvkEvent();
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/**
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* \brief Resets the event
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* \returns New revision ID
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*/
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uint32_t reset();
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/**
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* \brief Signals the event
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* \param [in] revision The revision ID
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*/
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void signal(uint32_t revision);
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/**
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* \brief Queries event status
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* \returns Current event status
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*/
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DxvkEventStatus getStatus() const;
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/**
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* \brief Waits for event to get signaled
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*
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* Blocks the calling thread until another
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* thread calls \ref signal for the current
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* revision of the event.
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*/
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void wait() const;
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private:
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struct Status {
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DxvkEventStatus status = DxvkEventStatus::Signaled;
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uint32_t revision = 0;
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};
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// Packed status and revision
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std::atomic<uint64_t> m_packed;
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static uint64_t pack(Status info);
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static Status unpack(uint64_t packed);
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};
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/**
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* \brief Event revision
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*
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* Stores the event object and the
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* version ID for event operations.
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*/
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struct DxvkEventRevision {
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Rc<DxvkEvent> event;
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uint32_t revision;
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};
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} |