public unsafe ThreadedSparseUploader Begin(int maxDataSizeInBytes, int biggestDataUpload, int maxOperationCount)
{
#if !DISABLE_HYBRID_RENDERER_V2_FRAME_LIMIT
if (SystemInfo.supportsAsyncGPUReadback)
{
m_LimitingRequests[m_CurrFrame].WaitForCompletion();
m_LimitingRequests[m_CurrFrame] = AsyncGPUReadback.Request(m_LimitingBuffers[m_CurrFrame]);
}
#endif
// First: recover all buffers from the previous frames (if any)
// TODO: handle change in QualitySettings.maxQueuedFrames
var currStack = m_FrameReuseBuffers[m_CurrFrame];
while (currStack.Count != 0)
{
var buffer = currStack.Pop();
m_FreeBuffers.Push(buffer);
}
// Second: calculate total size needed this frame, allocate buffers and map what is needed
var operationSize = UnsafeUtility.SizeOf <Operation>();
var maxOperationSizeInBytes = maxOperationCount * operationSize;
var sizeNeeded = maxOperationSizeInBytes + maxDataSizeInBytes;
var bufferSizeWithMaxPaddingRemoved = m_BufferChunkSize - operationSize - biggestDataUpload;
var numBuffersNeeded = (sizeNeeded + bufferSizeWithMaxPaddingRemoved - 1) / bufferSizeWithMaxPaddingRemoved;
EnsurePreallocatedComputeBuffers(numBuffersNeeded);
if (numBuffersNeeded < 0)
{
numBuffersNeeded = 0;
}
m_MappedBuffers = new NativeArray <MappedBuffer>(numBuffersNeeded, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
for (int i = 0; i < numBuffersNeeded; ++i)
{
var id = m_FreeBuffers.Pop();
var cb = m_UploadBuffers[id];
var data = cb.BeginWrite <byte>(0, m_BufferChunkSize);
var marker = MappedBuffer.PackMarker(0, m_BufferChunkSize);
m_MappedBuffers[i] = new MappedBuffer
{
m_Data = (byte *)data.GetUnsafePtr(),
m_Marker = marker,
m_BufferID = id,
};
}
m_ThreadData->m_Buffers = (MappedBuffer *)m_MappedBuffers.GetUnsafePtr();
m_ThreadData->m_NumBuffers = numBuffersNeeded;
// TODO: set safety handle on thread data
return(new ThreadedSparseUploader
{
m_Data = m_ThreadData
});
}
public ThreadedSparseUploader Begin(int maxDataSizeInBytes, int biggestDataUpload, int maxOperationCount)
{
// First: recover all buffers from the previous frames (if any)
RecoverBuffers();
// Second: calculate total size needed this frame, allocate buffers and map what is needed
var operationSize = UnsafeUtility.SizeOf <Operation>();
var maxOperationSizeInBytes = maxOperationCount * operationSize;
var sizeNeeded = maxOperationSizeInBytes + maxDataSizeInBytes;
var bufferSizeWithMaxPaddingRemoved = m_BufferChunkSize - operationSize - biggestDataUpload;
var numBuffersNeeded = (sizeNeeded + bufferSizeWithMaxPaddingRemoved - 1) / bufferSizeWithMaxPaddingRemoved;
if (numBuffersNeeded < 0)
{
numBuffersNeeded = 0;
}
m_MappedBuffers = new NativeArray <MappedBuffer>(numBuffersNeeded, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
for (int i = 0; i < numBuffersNeeded; ++i)
{
var id = m_UploadBufferPool.GetBufferId();
var cb = m_UploadBufferPool.GetBufferFromId(id);
var data = cb.BeginWrite <byte>(0, m_BufferChunkSize);
var marker = MappedBuffer.PackMarker(0, m_BufferChunkSize);
m_MappedBuffers[i] = new MappedBuffer
{
m_Data = (byte *)data.GetUnsafePtr(),
m_Marker = marker,
m_BufferID = id,
};
}
m_ThreadData->m_Buffers = (MappedBuffer *)m_MappedBuffers.GetUnsafePtr();
m_ThreadData->m_NumBuffers = numBuffersNeeded;
// TODO: set safety handle on thread data
return(new ThreadedSparseUploader
{
m_Data = m_ThreadData
});
}