From bb589a590eff81f9c1f66d29f9e79092b9a984c9 Mon Sep 17 00:00:00 2001
From: Ilya Lavrenov <ilya.lavrenov@itseez.com>
Date: Mon, 24 Sep 2012 11:35:46 +0400
Subject: [PATCH] debug

---
 modules/imgproc/src/imgwarp.cpp | 43 ++++++++++++++++++++++++++++++++++++-----
 1 file changed, 38 insertions(+), 5 deletions(-)

diff --git a/modules/imgproc/src/imgwarp.cpp b/modules/imgproc/src/imgwarp.cpp
index e29571b..509aea1 100644
--- a/modules/imgproc/src/imgwarp.cpp
+++ b/modules/imgproc/src/imgwarp.cpp
@@ -47,6 +47,8 @@
 // */
 
 #include "precomp.hpp"
+#include <iostream>
+#include <vector>
 
 namespace cv
 {
@@ -1414,6 +1416,8 @@ public:
         , cur_dy_ofs(_cur_dy_ofs), bands(_bands)
 #endif
     {
+        if (src.size() == Size(16, 16) && dst.size() == Size(5, 5))
+            std::cout << "scale_y = " << scale_y_ << std::endl << std::endl; 
     }
     
 #ifdef HAVE_TBB
@@ -1437,7 +1441,7 @@ public:
 #ifdef HAVE_TBB
         cur_dy = cur_dy_ofs[range.start];
 #endif
-        for( sy = range.start; sy < range.end; sy++ )
+        for (sy = range.start; sy < range.end; sy++)
         {
             const T* S = (const T*)(src.data + src.step*sy);
             if( cn == 1 )
@@ -1484,6 +1488,9 @@ public:
             
             if( (cur_dy + 1)*scale_y <= sy + 1 || sy == ssize.height - 1 )
             {
+                if (dsize == Size(5, 5) && ssize == Size(16, 16))
+                    std::cout << "Band: (" << range.start << ", " << range.end << ")" << std::endl;
+                
                 WT beta = std::max(sy + 1 - (cur_dy+1)*scale_y, (WT)0);
                 WT beta1 = 1 - beta;
                 T* D = (T*)(dst.data + dst.step*cur_dy);
@@ -1493,14 +1500,31 @@ public:
                         return;
                     for( dx = 0; dx < dsize.width; dx++ )
                     {
-                        D[dx] = saturate_cast<T>((sum[dx] + buf[dx]) / min(scale_y, src.rows - cur_dy * scale_y));
+                        D[dx] = saturate_cast<T>((sum[dx] + buf[dx]) / min(scale_y, src.rows - cur_dy * scale_y)); //
+                        if (dsize == Size(5, 5) && ssize == Size(16, 16))
+                        {
+                            std::cout << "sum[" << dx << "] = " << sum[dx] << std::endl;
+                            std::cout << "buf[" << dx << "] = " << buf[dx] << std::endl;
+                            std::cout << "min(scale_y, src.rows - cur_dy * scale_y) = " << min(scale_y, src.rows - cur_dy * scale_y) << std::endl;
+                            std::cout << "D[" << dx << "] = " << D[dx] << std::endl;
+                            std::cout << std::endl;
+                        }
                         sum[dx] = buf[dx] = 0;
                     }
                 }
                 else
                     for( dx = 0; dx < dsize.width; dx++ )
-                    {
-                        D[dx] = saturate_cast<T>((sum[dx] + buf[dx]* beta1)/ min(scale_y, src.rows - cur_dy*scale_y));
+                    {                        
+                        D[dx] = saturate_cast<T>((sum[dx] + buf[dx]* beta1)/ min(scale_y, src.rows - cur_dy*scale_y)); //
+                        if (dsize == Size(5, 5) && ssize == Size(16, 16))
+                        {
+                            std::cout << "sum[" << dx << "] = " << sum[dx] << std::endl;
+                            std::cout << "buf[" << dx << "] = " << buf[dx] << std::endl;
+                            std::cout << "beta1 = " << beta1 << std::endl;
+                            std::cout << "min(scale_y, src.rows - cur_dy * scale_y) = " << min(scale_y, src.rows - cur_dy * scale_y) << std::endl;
+                            std::cout << "D[" << dx << "] = " << D[dx] << std::endl;
+                            std::cout << std::endl;
+                        }
                         sum[dx] = buf[dx]*beta;
                         buf[dx] = 0;
                     }
@@ -1579,11 +1603,20 @@ static void resizeArea_( const Mat& src, Mat& dst, const DecimateAlpha* xofs, in
             cur_dy++;
         }
     }
-    bands.push_back(std::make_pair(index, ssize.height));
+//     bands.push_back(std::make_pair(index, ssize.height));
 #endif
     
 #ifdef HAVE_TBB
     Range range(0, bands.size());
+    
+    if (dsize == Size(5, 5) && ssize == Size(16, 16))
+    {
+        std::cout << "Bands" << std::endl;
+        for (std::vector<std::pair<int, int> >::const_iterator i = bands.begin(), end = bands.end(); i != end; ++i)
+            std::cout << i->first << " " << i->second << std::endl;
+        std::cout << std::endl;
+    }
+    
     resizeArea_Invoker<T, WT> invoker(src, dst, xofs, xofs_count, scale_y_, cur_dy_ofs, bands);
 #else
     Range range(0, src.rows);
-- 
2.7.4