+const char* SAMPLER_TYPE = "samplerExternalOES";
+
+constexpr int32_t NUM_FORMATS_BLENDING_REQUIRED = 18;
+
+constexpr int32_t DEFAULT_TBM_SURFACE_QUEUE_SIZE = 3u;
+constexpr auto TBM_SURFACE_QUEUE_SIZE = "DALI_TBM_SURFACE_QUEUE_SIZE";
+
+int32_t GetTbmSurfaceQueueSize()
+{
+ static auto queueSizeString = EnvironmentVariable::GetEnvironmentVariable(TBM_SURFACE_QUEUE_SIZE);
+ static int32_t queueSize = queueSizeString ? std::atoi(queueSizeString) : DEFAULT_TBM_SURFACE_QUEUE_SIZE;
+ return queueSize;
+}