diff --git a/Source/Engine/Graphics/Async/DefaultGPUTasksExecutor.cpp b/Source/Engine/Graphics/Async/DefaultGPUTasksExecutor.cpp
index bb7e082bb..ea090e3c9 100644
--- a/Source/Engine/Graphics/Async/DefaultGPUTasksExecutor.cpp
+++ b/Source/Engine/Graphics/Async/DefaultGPUTasksExecutor.cpp
@@ -23,19 +23,18 @@ void DefaultGPUTasksExecutor::FrameBegin()
_context = createContext();
_context->OnFrameBegin();
-}
-void DefaultGPUTasksExecutor::FrameEnd()
-{
- ASSERT(_context != nullptr);
-
- // Default implementation performs async operations on end of the frame which is synchronized with a rendering thread
+ // Default implementation performs async operations on start of the frame which is synchronized with a rendering thread
GPUTask* buffer[32];
const int32 count = GPUDevice::Instance->GetTasksManager()->RequestWork(buffer, 32);
for (int32 i = 0; i < count; i++)
{
_context->Run(buffer[i]);
}
+}
+void DefaultGPUTasksExecutor::FrameEnd()
+{
+ ASSERT(_context != nullptr);
_context->OnFrameEnd();
}
diff --git a/Source/Engine/Graphics/Async/GPUTask.h b/Source/Engine/Graphics/Async/GPUTask.h
index 2dde19109..45d21479d 100644
--- a/Source/Engine/Graphics/Async/GPUTask.h
+++ b/Source/Engine/Graphics/Async/GPUTask.h
@@ -19,7 +19,7 @@ public:
///
/// Describes GPU work type
///
- DECLARE_ENUM_4(Type, Custom, CopyResource, UploadTexture, UploadBuffer);
+ DECLARE_ENUM_EX_4(Type, byte, 0, Custom, CopyResource, UploadTexture, UploadBuffer);
///
/// Describes GPU work result value
@@ -32,13 +32,15 @@ private:
///
Type _type;
+ byte _syncLatency;
+
///
/// Synchronization point when async task has been done
///
GPUSyncPoint _syncPoint;
///
- /// The context that performed this task, it's should synchronize it.
+ /// The context that performed this task, it should synchronize it.
///
GPUTasksContext* _context;
@@ -47,8 +49,10 @@ protected:
/// Initializes a new instance of the class.
///
/// The type.
- GPUTask(const Type type)
+ /// Amount of frames until async operation is synced with GPU.
+ GPUTask(const Type type, byte syncLatency = GPU_ASYNC_LATENCY)
: _type(type)
+ , _syncLatency(syncLatency)
, _syncPoint(0)
, _context(nullptr)
{
@@ -58,7 +62,6 @@ public:
///
/// Gets a task type.
///
- /// The type.
FORCE_INLINE Type GetType() const
{
return _type;
@@ -67,17 +70,15 @@ public:
///
/// Gets work finish synchronization point
///
- /// Finish task sync point
FORCE_INLINE GPUSyncPoint GetSyncPoint() const
{
- return _syncPoint;
+ return _syncPoint + _syncLatency;
}
public:
///
/// Checks if operation is syncing
///
- /// True if operation is syncing, otherwise false
FORCE_INLINE bool IsSyncing() const
{
return IsRunning() && _syncPoint != 0;
diff --git a/Source/Engine/Graphics/Async/GPUTasksContext.cpp b/Source/Engine/Graphics/Async/GPUTasksContext.cpp
index 924276521..e98007a7f 100644
--- a/Source/Engine/Graphics/Async/GPUTasksContext.cpp
+++ b/Source/Engine/Graphics/Async/GPUTasksContext.cpp
@@ -70,16 +70,16 @@ void GPUTasksContext::OnFrameBegin()
++_currentSyncPoint;
// Try to flush done jobs
- auto currentSyncPointGPU = _currentSyncPoint - GPU_ASYNC_LATENCY;
for (int32 i = 0; i < _tasksDone.Count(); i++)
{
- if (_tasksDone[i]->GetSyncPoint() <= currentSyncPointGPU)
+ auto task = _tasksDone[i];
+ if (task->GetSyncPoint() <= _currentSyncPoint && task->GetState() != TaskState::Finished)
{
// TODO: add stats counter and count performed jobs, print to log on exit.
-
- auto job = _tasksDone[i];
- job->Sync();
-
+ task->Sync();
+ }
+ if (task->GetState() == TaskState::Finished)
+ {
_tasksDone.RemoveAt(i);
i--;
_totalTasksDoneCount++;
diff --git a/Source/Engine/Graphics/Async/GPUTasksContext.h b/Source/Engine/Graphics/Async/GPUTasksContext.h
index 1114144c6..1739e17a3 100644
--- a/Source/Engine/Graphics/Async/GPUTasksContext.h
+++ b/Source/Engine/Graphics/Async/GPUTasksContext.h
@@ -42,7 +42,6 @@ public:
///
/// Gets graphics device handle
///
- /// Graphics device
FORCE_INLINE GPUDevice* GetDevice() const
{
return GPU->GetDevice();
@@ -51,7 +50,6 @@ public:
///
/// Gets current synchronization point of that context (CPU position, GPU has some latency)
///
- /// Context sync point
FORCE_INLINE GPUSyncPoint GetCurrentSyncPoint() const
{
return _currentSyncPoint;
@@ -60,7 +58,6 @@ public:
///
/// Gets total amount of tasks done by this context
///
- /// Done tasks count
FORCE_INLINE int32 GetTotalTasksDoneCount() const
{
return _totalTasksDoneCount;
diff --git a/Source/Engine/Graphics/Async/GPUTasksManager.cpp b/Source/Engine/Graphics/Async/GPUTasksManager.cpp
index 42df38c0c..54cd45ead 100644
--- a/Source/Engine/Graphics/Async/GPUTasksManager.cpp
+++ b/Source/Engine/Graphics/Async/GPUTasksManager.cpp
@@ -30,6 +30,11 @@ void GPUTask::Execute(GPUTasksContext* context)
// Save task completion point (for synchronization)
_syncPoint = context->GetCurrentSyncPoint();
_context = context;
+ if (_syncLatency == 0)
+ {
+ // No delay on sync
+ Sync();
+ }
}
}