std::vector<T> downloadForDebugging(Resource &buffer)
{
// This function is very slow since it causes a GPU-CPU sync point,
// but for debugging it's convenient.
Resource downloaded = downloadForDebugging(buffer);
size_t bytes = downloaded.bufferDescriptor().ByteWidth;
size_t elements = bytes / sizeof(T);
std::vector<T> v(elements);
D3D11_MAPPED_SUBRESOURCE mapped;
zero(mapped);
context->Map(downloaded.buffer, 0, D3D11_MAP_READ, 0, &mapped);
memcpy(v.data(), mapped.pData, bytes);
context->Unmap(downloaded.buffer, 0);
return v;
}
