temporary added NPP_staging, functionality from the library will be moved to NPP with next release.

modules/gpu/CMakeLists.txt

-
 set(name "gpu")
 
-#"opencv_features2d" "opencv_flann" "opencv_objdetect" - only headers needed 
-set(DEPS "opencv_core" "opencv_imgproc" "opencv_objdetect" "opencv_features2d" "opencv_flann") 
-
-set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} opencv_gpu)
-
 set(the_target "opencv_${name}")
-
 project(${the_target})
 
+
+set(DEPS "opencv_core" "opencv_imgproc" "opencv_objdetect" "opencv_features2d" "opencv_flann") #"opencv_features2d" "opencv_flann" "opencv_objdetect" - only headers needed 
+set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} opencv_gpu)
+
 add_definitions(-DCVAPI_EXPORTS)
 
 include_directories("${CMAKE_CURRENT_SOURCE_DIR}/include"                    
@@ -43,7 +40,7 @@ if (HAVE_CUDA)
 	set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${_path_to_findnpp})	
 	find_package(NPP 3.2.16 REQUIRED)
 	message(STATUS "NPP detected: " ${NPP_VERSION})
-
+       
 	include_directories(${CUDA_INCLUDE_DIRS} ${CUDA_NPP_INCLUDES})	
 	
 	if (UNIX OR APPLE)
@@ -79,6 +76,11 @@ endif()
 
 add_library(${the_target} ${lib_srcs} ${lib_hdrs} ${lib_int_hdrs} ${lib_cuda} ${lib_cuda_hdrs} ${lib_device_hdrs} ${cuda_objs})
 
+IF (HAVE_CUDA)
+    include(FindNPP_staging.cmake)    
+    include_directories(${NPPST_INC})       
+    target_link_libraries(${the_target} ${NPPST_LIB})
+endif()
 
 if(PCHSupport_FOUND)
 	set(pch_header ${CMAKE_CURRENT_SOURCE_DIR}/src/precomp.hpp)
@@ -108,7 +110,7 @@ set_target_properties(${the_target} PROPERTIES
 	)
 
 # Add the required libraries for linking:
-target_link_libraries(${the_target} ${OPENCV_LINKER_LIBS} ${IPP_LIBS} ${DEPS})
+target_link_libraries(${the_target} ${OPENCV_LINKER_LIBS} ${IPP_LIBS} ${DEPS} )
 
 if (HAVE_CUDA)
 	target_link_libraries(${the_target} ${CUDA_LIBRARIES} ${CUDA_NPP_LIBRARIES})

modules/gpu/FindNPP_staging.cmake

+if(CMAKE_SIZEOF_VOID_P EQUAL 4)			
+    set(BIT_SUFF 32)
+else()
+    set(BIT_SUFF 64)
+endif()
+
+if (APPLE)
+    set(PLATFORM_SUFF Darwin)
+elseif (UNIX)
+    set(PLATFORM_SUFF Linux)
+else()
+    set(PLATFORM_SUFF Windows)
+endif()
+
+set(LIB_FILE NPP_staging_static_${PLATFORM_SUFF}_${BIT_SUFF}_v1)
+
+find_library(NPPST_LIB 
+    NAMES "${LIB_FILE}" "lib${LIB_FILE}" 
+    PATHS "${CMAKE_SOURCE_DIR}/3rdparty/NPP_staging" 
+    DOC "NPP staging library"
+    )	
+
+SET(NPPST_INC "${CMAKE_SOURCE_DIR}//3rdparty/NPP_staging")
+ 
\ No newline at end of file

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

@@ -1305,8 +1305,67 @@ namespace cv
             explicit BruteForceMatcher_GPU() : BruteForceMatcher_GPU_base(L2Dist) {}
             explicit BruteForceMatcher_GPU(L2<T> /*d*/) : BruteForceMatcher_GPU_base(L2Dist) {}
         };
-    }
 
+        ////////////////////////////////// CascadeClassifier //////////////////////////////////////////
+        // The cascade classifier class for object detection.
+        class CV_EXPORTS CascadeClassifier
+        {
+        public:
+            struct CV_EXPORTS DTreeNode
+            {
+                int featureIdx;
+                float threshold; // for ordered features only
+                int left;
+                int right;
+            };
+
+            struct CV_EXPORTS DTree
+            {
+                int nodeCount;
+            };
+
+            struct CV_EXPORTS Stage
+            {
+                int first;
+                int ntrees;
+                float threshold;
+            };
+
+            enum { BOOST = 0 };
+            enum { DO_CANNY_PRUNING = 1, SCALE_IMAGE = 2,FIND_BIGGEST_OBJECT = 4, DO_ROUGH_SEARCH = 8 };
+
+            CascadeClassifier();
+            CascadeClassifier(const string& filename);
+            ~CascadeClassifier();
+
+            bool empty() const;
+            bool load(const string& filename);
+            bool read(const FileNode& node);
+
+            void detectMultiScale( const Mat& image, vector<Rect>& objects, double scaleFactor=1.1,
+                int minNeighbors=3, int flags=0, Size minSize=Size(), Size maxSize=Size());
+
+            bool setImage( Ptr<FeatureEvaluator>&, const Mat& );
+            int runAt( Ptr<FeatureEvaluator>&, Point );
+
+            bool isStumpBased;
+
+            int stageType;
+            int featureType;
+            int ncategories;
+            Size origWinSize;
+
+            vector<Stage> stages;
+            vector<DTree> classifiers;
+            vector<DTreeNode> nodes;
+            vector<float> leaves;
+            vector<int> subsets;
+
+            Ptr<FeatureEvaluator> feval;
+            Ptr<CvHaarClassifierCascade> oldCascade;
+        };
+
+    }
 
     //! Speckle filtering - filters small connected components on diparity image.
     //! It sets pixel (x,y) to newVal if it coresponds to small CC with size < maxSpeckleSize.

modules/gpu/src/cascadeclassifier.cpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other GpuMaterials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or bpied warranties, including, but not limited to, the bpied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "precomp.hpp"
+
+
+
+
+using namespace cv;
+using namespace cv::gpu;
+using namespace std;
+
+#if !defined (HAVE_CUDA)
+
+cv::gpu::CascadeClassifier::CascadeClassifier()  { throw_nogpu(); }
+cv::gpu::CascadeClassifier::CascadeClassifier(const string&)  { throw_nogpu(); }
+cv::gpu::CascadeClassifier::~CascadeClassifier()  { throw_nogpu(); }
+
+bool cv::gpu::CascadeClassifier::empty() const { throw_nogpu(); return true; }
+bool cv::gpu::CascadeClassifier::load(const string& filename)  { throw_nogpu(); return true; }
+bool cv::gpu::CascadeClassifier::read(const FileNode& node)  { throw_nogpu(); return true; }
+
+void cv::gpu::CascadeClassifier::detectMultiScale( const Mat&, vector<Rect>&, double, int, int, Size, Size) { throw_nogpu(); }
+
+       
+
+
+
+#else
+
+
+cv::gpu::CascadeClassifier::CascadeClassifier()
+{
+
+}
+
+cv::gpu::CascadeClassifier::CascadeClassifier(const string& filename)
+{
+
+}
+
+cv::gpu::CascadeClassifier::~CascadeClassifier()
+{
+    
+}
+
+bool cv::gpu::CascadeClassifier::empty() const
+{
+    int *a = (int*)&nppiStTranspose_32u_C1R;
+    return *a == 0xFFFFF;
+    return true;
+}
+
+bool cv::gpu::CascadeClassifier::load(const string& filename)
+{
+    return true;
+}
+
+bool cv::gpu::CascadeClassifier::read(const FileNode& node)
+{
+    return true;
+}
+
+void cv::gpu::CascadeClassifier::detectMultiScale( const Mat& image, vector<Rect>& objects, double scaleFactor, 
+    int minNeighbors, int flags, Size minSize, Size maxSize)
+
+{
+
+}
+
+#endif
\ No newline at end of file

modules/gpu/src/precomp.hpp

@@ -66,6 +66,7 @@
     #include "cuda_runtime_api.h"
     #include "opencv2/gpu/stream_accessor.hpp"
     #include "npp.h"    
+    #include "npp_staging.h"
 
 #define CUDART_MINIMUM_REQUIRED_VERSION 3020
 #define NPP_MINIMUM_REQUIRED_VERSION 3216
@@ -78,6 +79,7 @@
     #error "Insufficient NPP version, please update it."
 #endif
 
+    static inline void throw_nogpu() { CV_Error(CV_GpuNotSupported, "The called functionality is disabled for current build or platform"); }
 
 #else /* defined(HAVE_CUDA) */
 

tests/gpu/src/stereo_bm.cpp

@@ -55,12 +55,7 @@ struct CV_GpuStereoBMTest : public CvTest
 
 
     void run_stress()
-    {
-        //cv::setBreakOnError(true);
-        int winsz[] = { 13, 15, 17, 19 };
-        int disps[] = { 128, 160, 192, 256};
-
-        Size res[] = { Size(1027, 768), Size(1280, 1024), Size(1600, 1152), Size(1920, 1080) };        
+    {                
         RNG rng;
 
         for(int i = 0; i < 10; ++i)