Method DownloadDataAsync

Source/Engine/Graphics/GPUBuffer.cpp:408–434

};

Task* GPUBuffer::DownloadDataAsync(BytesContainer& result)
{
    // Skip for empty ones
    if (GetSize() == 0)
        return nullptr;

    // Create the staging resource
    const auto staging = ToStagingReadback();
    if (staging == nullptr)
    {
        LOG(Warning, "Cannot create staging resource from {0}.", ToString());
        return nullptr;
    }

    // Create async resource copy task
    auto copyTask = ::New<GPUCopyResourceTask>(this, staging);
    ASSERT(copyTask->HasReference(this) && copyTask->HasReference(staging));

    // Create task to copy downloaded data to BytesContainer
    const auto getDataTask = ::New<BufferDownloadDataTask>(this, staging, result);
    ASSERT(getDataTask->HasReference(this) && getDataTask->HasReference(staging));

    // Set continuation
    copyTask->ContinueWith(getDataTask);

    return copyTask;
}

bool GPUBuffer::GetData(BytesContainer& output)
{