Method GetNumActiveElements

GTE/Graphics/GL46/GL46StructuredBuffer.cpp:82–101

}

bool GL46StructuredBuffer::GetNumActiveElements()
{
    auto buffer = GetStructuredBuffer();
    if (StructuredBuffer::CounterType::NONE == buffer->GetCounterType())
    {
        return false;
    }

    // Read the count from the location in the buffer past the structured
    // buffer data.
    GLint count;
    glBindBuffer(mType, mGLHandle);
    glGetBufferSubData(mType, mCounterOffset, 4, &count);
    glBindBuffer(mType, 0);

    count = (std::max)(0, count);
    buffer->SetNumActiveElements(count);

    return true;
}

bool GL46StructuredBuffer::SetNumActiveElements()
{