Method BatchData

libs/drape/batcher_helpers.cpp:259–294

{}

void TriangleListBatch::BatchData(ref_ptr<GraphicsContext> context, ref_ptr<AttributeProvider> streams)
{
  while (streams->IsDataExists())
  {
    if (IsBufferFilled(GetAvailableVertexCount(), GetAvailableIndexCount()))
      ChangeBuffer(context);

    uint32_t avVertex = GetAvailableVertexCount();
    uint32_t avIndex = GetAvailableIndexCount();
    uint32_t vertexCount = streams->GetVertexCount();

    if (CanDivideStreams())
    {
      vertexCount = std::min(vertexCount, avVertex);
      vertexCount = std::min(vertexCount, avIndex);
      ASSERT(vertexCount >= 3, ());
      vertexCount -= vertexCount % 3;
    }
    else if (!IsEnoughMemory(avVertex, vertexCount, avIndex, vertexCount))
    {
      ChangeBuffer(context);
      avVertex = GetAvailableVertexCount();
      avIndex = GetAvailableIndexCount();
      ASSERT(IsEnoughMemory(avVertex, vertexCount, avIndex, vertexCount), ());
      ASSERT(vertexCount % 3 == 0, ());
    }

    uint32_t startIndex = 0;
    void * indicesStorage = GetIndexStorage(vertexCount, startIndex);
    GenerateIndices<ListIndexGenerator>(indicesStorage, vertexCount, startIndex);
    SubmitIndices(context);

    FlushData(context, streams, vertexCount);
    streams->Advance(vertexCount);
  }
}

LineStripBatch::LineStripBatch(BatchCallbacks & callbacks)
  : TBase(callbacks, 2 /* minVerticesCount */, 2 /* minIndicesCount */)