public static List <T> ComponentDataArrayToList <T>(ComponentDataArray <T> cda) where T : struct, IComponentData
{
NativeArray <T> na = cda.GetChunkArray(0, cda.Length);
List <T> list = new List <T>(na.ToArray());
return(list);
}
public static void CopyFrom <T>(this ComputeBuffer dst, ref ComponentDataArray <T> src, int length) where T : struct, IComponentData
{
NativeArray <T> chunkArray;
for (int copiedCount = 0; copiedCount < length; copiedCount += chunkArray.Length)
{
// Allocator.InvalidであるからDisposeしてはならぬ。
chunkArray = src.GetChunkArray(copiedCount, length - copiedCount);
dst.SetData(chunkArray, 0, copiedCount, chunkArray.Length);
}
}
public static unsafe void CopyFromUnsafe <T>(this ComputeBuffer dst, ref ComponentDataArray <T> src, int length) where T : struct, IComponentData
{
var stride = dst.stride;
var ptr = dst.GetNativeBufferPtr();
NativeArray <T> chunkArray;
for (int copiedCount = 0, chunkLength = 0; copiedCount < length; copiedCount += chunkLength)
{
chunkArray = src.GetChunkArray(copiedCount, length - copiedCount);
chunkLength = chunkArray.Length;
UnsafeUtility.MemCpy(ptr.ToPointer(), NativeArrayUnsafeUtility.GetUnsafeBufferPointerWithoutChecks(chunkArray), chunkLength * stride);
ptr += chunkLength * stride;
}
}
