/// <summary>
/// Read out some values from a DeviceBuffer and print them to the console. Just for debugging.
/// </summary>
/// <param name="buf">GPU DeviceBuffer to read</param>
/// <param name="message">Caption for the printout</param>
/// <param name="printCount">Max values to print</param>
private void DebugPrintOutputFloatBuffer(DeviceBuffer buf, string message, int printCount)
{
DeviceBuffer destinationReadback = VeldridGraphBuffers.GetReadback(_gd !, buf);
MappedResourceView <float> destinationReadView = _gd !.Map <float>(destinationReadback, MapMode.Read);
float[] outputArray = new float[destinationReadView.Count];
for (int index = 0; index < destinationReadView.Count; index++)
{
if (index >= destinationReadView.Count)
{
break;
}
outputArray[index] = destinationReadView[index];
}
_gd.Unmap(destinationReadback);
PrintFloatBufferArray(outputArray, message, printCount);
VeldridGraphBuffers.VRAMDispose(destinationReadback);
}
/// <summary>
/// Must have read lock to call
/// Find the node with the highest x/y/z dimension. Ignores w.
/// </summary>
/// <param name="buf">Device buffer containing values (can be speeds or positions)</param>
/// <param name="nodeCount">Number of nodes to iterate over</param>
/// <param name="highIndex">set to the index of the highest node</param>
/// <returns></returns>
private float FindHighXYZ(DeviceBuffer buf, int nodeCount, out int highIndex)
{
if (GlobalConfig.Settings.Logs.BulkLogging)
{
Logging.RecordLogEvent($"FindHighXYZ {this.EngineID}", Logging.LogFilterType.BulkDebugLogFile);
}
DeviceBuffer destinationReadback = VeldridGraphBuffers.GetReadback(_gd !, buf);
MappedResourceView <float> destinationReadView = _gd !.Map <float>(destinationReadback, MapMode.Read);
float highest = 0f;
highIndex = 0;
for (int testNodeIndex = 0; testNodeIndex < nodeCount; testNodeIndex += 1)
{
int bufIndex = testNodeIndex * 4;
Debug.Assert(bufIndex + 3 < destinationReadView.Count);
if (Math.Abs(destinationReadView[bufIndex]) > highest)
{
highest = Math.Abs(destinationReadView[bufIndex]);
highIndex = bufIndex;
}
if (Math.Abs(destinationReadView[bufIndex + 1]) > highest)
{
highest = Math.Abs(destinationReadView[bufIndex + 1]);
highIndex = bufIndex + 1;
}
if (Math.Abs(destinationReadView[bufIndex + 2]) > highest)
{
highest = Math.Abs(destinationReadView[bufIndex + 2]);
highIndex = bufIndex + 2;
}
}
highIndex = (int)Math.Floor(highIndex / 4f);
_gd.Unmap(destinationReadback);
VeldridGraphBuffers.VRAMDispose(destinationReadback);
return(highest);
}
private void DebugPrintOutputIntBuffer(DeviceBuffer buf, string message, int printCount)
{
if (buf is null)
{
Console.WriteLine("Skipping debug output of null buffer:" + message);
return;
}
DeviceBuffer destinationReadback = VeldridGraphBuffers.GetReadback(_gd !, buf);
MappedResourceView <int> destinationReadView = _gd !.Map <int>(destinationReadback, MapMode.Read);
int[] outputArray = new int[destinationReadView.Count];
for (int index = 0; index < destinationReadView.Count; index++)
{
if (index >= destinationReadView.Count)
{
break;
}
outputArray[index] = destinationReadView[index];
}
_gd.Unmap(destinationReadback);
PrintIntBufferArray(outputArray, message, printCount);
VeldridGraphBuffers.VRAMDispose(destinationReadback);
}