added version of StereoBeliefPropagation::operator() for user specified data term

modules/gpu/include/opencv2/gpu/gpu.hpp

@@ -415,6 +415,11 @@ namespace cv
             //! Acync version
             void operator()(const GpuMat& left, const GpuMat& right, GpuMat& disparity, Stream& stream);
 
+            
+            //! version for user specified data term
+            void operator()(const GpuMat& data, GpuMat& disparity);
+            void operator()(const GpuMat& data, GpuMat& disparity, Stream& stream);
+
             int ndisp;
 
             int iters;

modules/gpu/src/constantspacebp_gpu.cpp

@@ -129,9 +129,9 @@ cv::gpu::StereoConstantSpaceBP::StereoConstantSpaceBP(int ndisp_, int iters_, in
 
 template<class T>
 static void csbp_operator(StereoConstantSpaceBP& rthis, GpuMat u[2], GpuMat d[2], GpuMat l[2], GpuMat r[2],
-                                     GpuMat disp_selected_pyr[2], GpuMat& data_cost, GpuMat& data_cost_selected,
-                                     GpuMat& temp, GpuMat& out, const GpuMat& left, const GpuMat& right, GpuMat& disp,
-                                     cudaStream_t stream)
+                          GpuMat disp_selected_pyr[2], GpuMat& data_cost, GpuMat& data_cost_selected,
+                          GpuMat& temp, GpuMat& out, const GpuMat& left, const GpuMat& right, GpuMat& disp,
+                          cudaStream_t stream)
 {
     CV_DbgAssert(0 < rthis.ndisp && 0 < rthis.iters && 0 < rthis.levels && 0 < rthis.nr_plane
         && left.rows == right.rows && left.cols == right.cols && left.type() == right.type());

modules/gpu/src/precomp.hpp

@@ -52,6 +52,7 @@
 
 #include <iostream>
 #include <limits>
+#include <vector>
 
 #include "opencv2/gpu/gpu.hpp"