IPPInitSingelton was added to contain IPP related global variables;

OPENCV_IPP env var now allows to select IPP architecture level for IPP9+;
IPP initialization logic was unified across modules;

modules/calib3d/src/main.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.
+// Copyright (C) 2015, Itseez 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 materials 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 implied warranties, including, but not limited to, the implied
+// 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*/
+
+//
+// Library initialization file
+//
+
+#include "precomp.hpp"
+
+IPP_INITIALIZER_AUTO
+
+/* End of file. */

modules/core/include/opencv2/core/base.hpp

@@ -645,6 +645,7 @@ namespace cudev
 
 namespace ipp
 {
+CV_EXPORTS int getIppFeatures();
 CV_EXPORTS void setIppStatus(int status, const char * const funcname = NULL, const char * const filename = NULL,
                              int line = 0);
 CV_EXPORTS int getIppStatus();

modules/core/include/opencv2/core/private.hpp

@@ -256,6 +256,42 @@ static inline IppDataType ippiGetDataType(int depth)
 #define HAVE_ICV 0
 #endif
 
+#if defined HAVE_IPP
+#if IPP_VERSION_X100 >= 900
+#define IPP_INITIALIZER(FEAT)                           \
+{                                                       \
+    if(FEAT)                                            \
+        ippSetCpuFeatures(FEAT);                        \
+    else                                                \
+        ippInit();                                      \
+}
+#elif IPP_VERSION_X100 >= 800
+#define IPP_INITIALIZER(FEAT)                           \
+{                                                       \
+    ippInit();                                          \
+}
+#else
+#define IPP_INITIALIZER(FEAT)                           \
+{                                                       \
+    ippStaticInit();                                    \
+}
+#endif
+
+#ifdef CVAPI_EXPORTS
+#define IPP_INITIALIZER_AUTO                            \
+struct __IppInitializer__                               \
+{                                                       \
+    __IppInitializer__()                                \
+    {IPP_INITIALIZER(cv::ipp::getIppFeatures())}        \
+};                                                      \
+static struct __IppInitializer__ __ipp_initializer__;
+#else
+#define IPP_INITIALIZER_AUTO
+#endif
+#else
+#define IPP_INITIALIZER
+#define IPP_INITIALIZER_AUTO
+#endif
 
 #define CV_IPP_CHECK_COND (cv::ipp::useIPP())
 #define CV_IPP_CHECK() if(CV_IPP_CHECK_COND)

modules/core/src/system.cpp

@@ -42,6 +42,7 @@
 //M*/
 
 #include "precomp.hpp"
+#include <iostream>
 
 namespace cv {
 
@@ -377,21 +378,6 @@ bool checkHardwareSupport(int feature)
 
 
 volatile bool useOptimizedFlag = true;
-#ifdef HAVE_IPP
-struct IPPInitializer
-{
-    IPPInitializer(void)
-    {
-#if IPP_VERSION_MAJOR >= 8
-        ippInit();
-#else
-        ippStaticInit();
-#endif
-    }
-};
-
-IPPInitializer ippInitializer;
-#endif
 
 volatile bool USE_SSE2 = featuresEnabled.have[CV_CPU_SSE2];
 volatile bool USE_SSE4_2 = featuresEnabled.have[CV_CPU_SSE4_2];
@@ -1305,26 +1291,88 @@ void setUseCollection(bool flag)
 namespace ipp
 {
 
-static int ippStatus = 0; // 0 - all is ok, -1 - IPP functions failed
-static const char * funcname = NULL, * filename = NULL;
-static int linen = 0;
+struct IPPInitSingelton
+{
+public:
+    IPPInitSingelton()
+    {
+        useIPP      = true;
+        ippStatus   = 0;
+        funcname    = NULL;
+        filename    = NULL;
+        linen       = 0;
+        ippFeatures = 0;
+
+#ifdef HAVE_IPP
+        const char* pIppEnv = getenv("OPENCV_IPP");
+        cv::String env = pIppEnv;
+        if(env.size())
+        {
+            if(env == "disabled")
+            {
+                std::cerr << "WARNING: IPP was disabled by OPENCV_IPP environment variable" << std::endl;
+                useIPP = false;
+            }
+#if IPP_VERSION_X100 >= 900
+            else if(env == "sse")
+                ippFeatures = ippCPUID_SSE;
+            else if(env == "sse2")
+                ippFeatures = ippCPUID_SSE2;
+            else if(env == "sse42")
+                ippFeatures = ippCPUID_SSE42;
+            else if(env == "avx")
+                ippFeatures = ippCPUID_AVX;
+            else if(env == "avx2")
+                ippFeatures = ippCPUID_AVX2;
+#endif
+            else
+                std::cerr << "ERROR: Improper value of OPENCV_IPP: " << env.c_str() << std::endl;
+        }
+
+        IPP_INITIALIZER(ippFeatures)
+#endif
+    }
+
+    bool useIPP;
+
+    int         ippStatus; // 0 - all is ok, -1 - IPP functions failed
+    const char *funcname;
+    const char *filename;
+    int         linen;
+    int         ippFeatures;
+};
+
+static IPPInitSingelton& getIPPSingelton()
+{
+    static IPPInitSingelton sing;
+    return sing;
+}
+
+int getIppFeatures()
+{
+#ifdef HAVE_IPP
+    return getIPPSingelton().ippFeatures;
+#else
+    return 0;
+#endif
+}
 
 void setIppStatus(int status, const char * const _funcname, const char * const _filename, int _line)
 {
-    ippStatus = status;
-    funcname = _funcname;
-    filename = _filename;
-    linen = _line;
+    getIPPSingelton().ippStatus = status;
+    getIPPSingelton().funcname = _funcname;
+    getIPPSingelton().filename = _filename;
+    getIPPSingelton().linen = _line;
 }
 
 int getIppStatus()
 {
-    return ippStatus;
+    return getIPPSingelton().ippStatus;
 }
 
 String getIppErrorLocation()
 {
-    return format("%s:%d %s", filename ? filename : "", linen, funcname ? funcname : "");
+    return format("%s:%d %s", getIPPSingelton().filename ? getIPPSingelton().filename : "", getIPPSingelton().linen, getIPPSingelton().funcname ? getIPPSingelton().funcname : "");
 }
 
 bool useIPP()
@@ -1333,11 +1381,7 @@ bool useIPP()
     CoreTLSData* data = getCoreTlsData().get();
     if(data->useIPP < 0)
     {
-        const char* pIppEnv = getenv("OPENCV_IPP");
-        if(pIppEnv && (cv::String(pIppEnv) == "disabled"))
-            data->useIPP = false;
-        else
-            data->useIPP = true;
+        data->useIPP = getIPPSingelton().useIPP;
     }
     return (data->useIPP > 0);
 #else

modules/features2d/src/main.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.
+// Copyright (C) 2015, Itseez 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 materials 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 implied warranties, including, but not limited to, the implied
+// 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*/
+
+//
+// Library initialization file
+//
+
+#include "precomp.hpp"
+
+IPP_INITIALIZER_AUTO
+
+/* End of file. */

modules/imgproc/src/color.cpp

@@ -100,7 +100,6 @@
 #define MAX_IPP8u   255
 #define MAX_IPP16u  65535
 #define MAX_IPP32f  1.0
-static IppStatus sts = ippInit();
 #endif
 
 namespace cv

modules/imgproc/src/deriv.cpp

@@ -43,10 +43,6 @@
 #include "precomp.hpp"
 #include "opencl_kernels_imgproc.hpp"
 
-#if defined (HAVE_IPP) && (IPP_VERSION_MAJOR >= 7)
-static IppStatus sts = ippInit();
-#endif
-
 /****************************************************************************************\
                              Sobel & Scharr Derivative Filters
 \****************************************************************************************/

modules/imgproc/src/imgwarp.cpp

@@ -50,10 +50,6 @@
 #include "precomp.hpp"
 #include "opencl_kernels_imgproc.hpp"
 
-#if defined (HAVE_IPP) && (IPP_VERSION_MAJOR >= 7)
-static IppStatus sts = ippInit();
-#endif
-
 namespace cv
 {
 #if IPP_VERSION_X100 >= 710

modules/imgproc/src/main.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.
+// Copyright (C) 2015, Itseez 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 materials 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 implied warranties, including, but not limited to, the implied
+// 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*/
+
+//
+// Library initialization file
+//
+
+#include "precomp.hpp"
+
+IPP_INITIALIZER_AUTO
+
+/* End of file. */

modules/imgproc/src/sumpixels.cpp

@@ -44,10 +44,6 @@
 #include "precomp.hpp"
 #include "opencl_kernels_imgproc.hpp"
 
-#if defined (HAVE_IPP) && (IPP_VERSION_MAJOR >= 7)
-static IppStatus sts = ippInit();
-#endif
-
 namespace cv
 {
 

modules/objdetect/src/main.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.
+// Copyright (C) 2015, Itseez 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 materials 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 implied warranties, including, but not limited to, the implied
+// 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*/
+
+//
+// Library initialization file
+//
+
+#include "precomp.hpp"
+
+IPP_INITIALIZER_AUTO
+
+/* End of file. */