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Fix GPU queries ordering.
With multithreaded Vulkan rendering it is possible that GPU time queries will be sent in a different order than the originating CPU queries were made. This commit changes the in-order queue to a map of queries, waiting to be resolved.
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@ -202,10 +202,10 @@ struct GpuCtxData
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uint64_t count;
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Vector<GpuEvent*> timeline;
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Vector<GpuEvent*> stack;
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Vector<GpuEvent*> queue;
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Vector<GpuCtxResync> resync;
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uint8_t accuracyBits;
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float period;
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GpuEvent* query[64*1024];
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};
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struct LockMap
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@ -6,6 +6,7 @@
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#include <chrono>
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#include <mutex>
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#include <string.h>
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#if __has_include(<execution>)
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# include <execution>
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@ -1940,6 +1941,7 @@ void Worker::ProcessGpuNewContext( const QueueGpuNewContext& ev )
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}
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auto gpu = m_slab.AllocInit<GpuCtxData>();
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memset( gpu->query, 0, sizeof( gpu->query ) );
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gpu->timeDiff = TscTime( ev.cpuTime ) - gpuTime;
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gpu->thread = ev.thread;
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gpu->accuracyBits = ev.accuracyBits;
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@ -1986,7 +1988,9 @@ void Worker::ProcessGpuZoneBeginImpl( GpuEvent* zone, const QueueGpuZoneBegin& e
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timeline->push_back( zone );
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ctx->stack.push_back( zone );
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ctx->queue.push_back( zone );
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assert( !ctx->query[ev.queryId] );
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ctx->query[ev.queryId] = zone;
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}
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void Worker::ProcessGpuZoneBegin( const QueueGpuZoneBegin& ev )
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@ -2012,7 +2016,9 @@ void Worker::ProcessGpuZoneEnd( const QueueGpuZoneEnd& ev )
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assert( !ctx->stack.empty() );
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auto zone = ctx->stack.back_and_pop();
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ctx->queue.push_back( zone );
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assert( !ctx->query[ev.queryId] );
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ctx->query[ev.queryId] = zone;
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zone->cpuEnd = TscTime( ev.cpuTime );
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m_data.lastTime = std::max( m_data.lastTime, zone->cpuEnd );
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@ -2033,7 +2039,10 @@ void Worker::ProcessGpuTime( const QueueGpuTime& ev )
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gpuTime = int64_t( double( ctx->period ) * ev.gpuTime ); // precision loss
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}
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auto zone = ctx->queue.front();
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auto zone = ctx->query[ev.queryId];
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assert( zone );
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ctx->query[ev.queryId] = nullptr;
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if( zone->gpuStart == std::numeric_limits<int64_t>::max() )
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{
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zone->gpuStart = ctx->timeDiff + gpuTime;
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@ -2044,9 +2053,13 @@ void Worker::ProcessGpuTime( const QueueGpuTime& ev )
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{
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zone->gpuEnd = ctx->timeDiff + gpuTime;
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m_data.lastTime = std::max( m_data.lastTime, zone->gpuEnd );
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if( zone->gpuEnd < zone->gpuStart )
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{
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std::swap( zone->gpuEnd, zone->gpuStart );
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}
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}
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ctx->queue.erase( ctx->queue.begin() );
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if( !ctx->resync.empty() )
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{
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auto& resync = ctx->resync.front();
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