fix for gpu::StereoBeliefPropogation:

use continuous memory for internal buffers

(cherry picked from commit e2a9df40)

modules/gpu/src/stereobp.cpp

@@ -158,7 +158,7 @@ namespace
 
             init(stream);
 
-            datas[0].create(rows * rthis.ndisp, cols, rthis.msg_type);
+            createContinuous(rows * rthis.ndisp, cols, rthis.msg_type, datas[0]);
 
             comp_data_callers[rthis.msg_type == CV_32F][left.channels()](left, right, datas[0], StreamAccessor::getStream(stream));
 
@@ -187,10 +187,10 @@ namespace
     private:
         void init(Stream& stream)
         {
-            u.create(rows * rthis.ndisp, cols, rthis.msg_type);
-            d.create(rows * rthis.ndisp, cols, rthis.msg_type);
-            l.create(rows * rthis.ndisp, cols, rthis.msg_type);
-            r.create(rows * rthis.ndisp, cols, rthis.msg_type);
+            createContinuous(rows * rthis.ndisp, cols, rthis.msg_type, u);
+            createContinuous(rows * rthis.ndisp, cols, rthis.msg_type, d);
+            createContinuous(rows * rthis.ndisp, cols, rthis.msg_type, l);
+            createContinuous(rows * rthis.ndisp, cols, rthis.msg_type, r);
 
             if (rthis.levels & 1)
             {
@@ -216,10 +216,10 @@ namespace
                 int less_rows = rows / 2;
                 int less_cols = cols / 2;
 
-                u2.create(less_rows * rthis.ndisp, less_cols, rthis.msg_type);
-                d2.create(less_rows * rthis.ndisp, less_cols, rthis.msg_type);
-                l2.create(less_rows * rthis.ndisp, less_cols, rthis.msg_type);
-                r2.create(less_rows * rthis.ndisp, less_cols, rthis.msg_type);
+                createContinuous(less_rows * rthis.ndisp, less_cols, rthis.msg_type, u2);
+                createContinuous(less_rows * rthis.ndisp, less_cols, rthis.msg_type, d2);
+                createContinuous(less_rows * rthis.ndisp, less_cols, rthis.msg_type, l2);
+                createContinuous(less_rows * rthis.ndisp, less_cols, rthis.msg_type, r2);
 
                 if ((rthis.levels & 1) == 0)
                 {
@@ -286,7 +286,7 @@ namespace
                 cols_all[i] = cols_all[i-1] / 2;
                 rows_all[i] = rows_all[i-1] / 2;
 
-                datas[i].create(rows_all[i] * rthis.ndisp, cols_all[i], rthis.msg_type);
+                createContinuous(rows_all[i] * rthis.ndisp, cols_all[i], rthis.msg_type, datas[i]);
 
                 data_step_down_callers[funcIdx](cols_all[i], rows_all[i], rows_all[i-1], datas[i-1], datas[i], cudaStream);
             }