mirror of https://github.com/doitsujin/dxvk
72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <vector>
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namespace dxvk {
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/**
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* \brief GPU context flush type
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*/
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enum class GpuFlushType : uint32_t {
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/** Flush or Present called by application */
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ExplicitFlush = 0,
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/** Function that requires GPU synchronization and
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* may require a flush called by application */
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ImplicitSynchronization = 1,
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/** GPU command that applications are likely to synchronize
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* with soon has been recorded into the command list */
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ImplicitStrongHint = 2,
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/** GPU commands have been recorded and a flush should be
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* performed if the current command list is large enough. */
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ImplicitWeakHint = 3,
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};
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/**
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* \brief GPU flush tracker
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*
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* Helper class that implements a context flush
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* heuristic for various scenarios.
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*/
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class GpuFlushTracker {
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public:
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/**
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* \brief Checks whether a context flush should be performed
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*
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* Note that this modifies internal state, and depending on the
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* flush type, this may influence the decision for future flushes.
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* \param [in] flushType Flush type
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* \param [in] chunkId GPU command sequence number
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* \param [in] lastCompleteSubmissionId Last completed command submission ID
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* \returns \c true if a flush should be performed
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*/
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bool considerFlush(
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GpuFlushType flushType,
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uint64_t chunkId,
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uint32_t lastCompleteSubmissionId);
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/**
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* \brief Notifies tracker about a context flush
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*
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* \param [in] chunkId GPU command sequence number
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* \param [in] submissionId Command submission ID
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*/
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void notifyFlush(
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uint64_t chunkId,
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uint64_t submissionId);
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private:
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GpuFlushType m_lastMissedType = GpuFlushType::ImplicitWeakHint;
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uint64_t m_lastFlushChunkId = 0ull;
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uint64_t m_lastFlushSubmissionId = 0ull;
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};
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}
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