removed HAL calls from public OpenCV headers; put IPP calls back to hall:sqrt() and such (but they are disabled for now)

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

@@ -492,17 +492,9 @@ _AccTp normL2Sqr(const _Tp* a, const _Tp* b, int n)
     return s;
 }
 
-inline float normL2Sqr(const float* a, const float* b, int n)
+static inline float normL2Sqr(const float* a, const float* b, int n)
 {
-    if( n >= 8 )
+    return normL2Sqr<float, float>(a, b, n);
-        return hal::normL2Sqr_(a, b, n);
-    float s = 0;
-    for( int i = 0; i < n; i++ )
-    {
-        float v = a[i] - b[i];
-        s += v*v;
-    }
-    return s;
 }
 
 template<typename _Tp, typename _AccTp> static inline
@@ -527,20 +519,12 @@ _AccTp normL1(const _Tp* a, const _Tp* b, int n)
 
 inline float normL1(const float* a, const float* b, int n)
 {
-    if( n >= 8 )
+    return normL1<float, float>(a, b, n);
-        return hal::normL1_(a, b, n);
-    float s = 0;
-    for( int i = 0; i < n; i++ )
-    {
-        float v = a[i] - b[i];
-        s += std::abs(v);
-    }
-    return s;
 }
 
 inline int normL1(const uchar* a, const uchar* b, int n)
 {
-    return hal::normL1_(a, b, n);
+    return normL1<uchar, int>(a, b, n);
 }
 
 template<typename _Tp, typename _AccTp> static inline
@@ -573,6 +557,15 @@ CV_EXPORTS_W float cubeRoot(float val);
  */
 CV_EXPORTS_W float fastAtan2(float y, float x);
 
+/** proxy for hal::LU */
+CV_EXPORTS int LU(float* A, size_t astep, int m, float* b, size_t bstep, int n);
+/** proxy for hal::LU */
+CV_EXPORTS int LU(double* A, size_t astep, int m, double* b, size_t bstep, int n);
+/** proxy for hal::Cholesky */
+CV_EXPORTS bool Cholesky(float* A, size_t astep, int m, float* b, size_t bstep, int n);
+/** proxy for hal::Cholesky */
+CV_EXPORTS bool Cholesky(double* A, size_t astep, int m, double* b, size_t bstep, int n);
+
 ////////////////// forward declarations for important OpenCV types //////////////////
 
 //! @cond IGNORED

modules/core/include/opencv2/core/matx.hpp

@@ -427,7 +427,7 @@ template<typename _Tp, int m> struct Matx_DetOp
     double operator ()(const Matx<_Tp, m, m>& a) const
     {
         Matx<_Tp, m, m> temp = a;
-        double p = hal::LU(temp.val, m*sizeof(_Tp), m, 0, 0, 0);
+        double p = LU(temp.val, m*sizeof(_Tp), m, 0, 0, 0);
         if( p == 0 )
             return p;
         for( int i = 0; i < m; i++ )

modules/core/include/opencv2/core/operations.hpp

@@ -72,9 +72,9 @@ template<typename _Tp, int m> struct Matx_FastInvOp
             b(i, i) = (_Tp)1;
 
         if( method == DECOMP_CHOLESKY )
-            return hal::Cholesky(temp.val, m*sizeof(_Tp), m, b.val, m*sizeof(_Tp), m);
+            return Cholesky(temp.val, m*sizeof(_Tp), m, b.val, m*sizeof(_Tp), m);
 
-        return hal::LU(temp.val, m*sizeof(_Tp), m, b.val, m*sizeof(_Tp), m) != 0;
+        return LU(temp.val, m*sizeof(_Tp), m, b.val, m*sizeof(_Tp), m) != 0;
     }
 };
 

modules/core/src/lapack.cpp

@@ -50,6 +50,26 @@
 namespace cv
 {
 
+int LU(float* A, size_t astep, int m, float* b, size_t bstep, int n)
+{
+    return hal::LU(A, astep, m, b, bstep, n);
+}
+
+int LU(double* A, size_t astep, int m, double* b, size_t bstep, int n)
+{
+    return hal::LU(A, astep, m, b, bstep, n);
+}
+
+bool Cholesky(float* A, size_t astep, int m, float* b, size_t bstep, int n)
+{
+    return hal::Cholesky(A, astep, m, b, bstep, n);
+}
+
+bool Cholesky(double* A, size_t astep, int m, double* b, size_t bstep, int n)
+{
+    return hal::Cholesky(A, astep, m, b, bstep, n);
+}
+
 template<typename _Tp> static inline _Tp hypot(_Tp a, _Tp b)
 {
     a = std::abs(a);

modules/hal/src/mathfuncs.cpp

@@ -42,6 +42,8 @@
 
 #include "precomp.hpp"
 
+#undef HAVE_IPP
+
 namespace cv { namespace hal {
 
 ///////////////////////////////////// ATAN2 ////////////////////////////////////
@@ -160,6 +162,19 @@ void fastAtan2(const float *Y, const float *X, float *angle, int len, bool angle
 
 void magnitude(const float* x, const float* y, float* mag, int len)
 {
+#if defined HAVE_IPP
+    CV_IPP_CHECK()
+    {
+        IppStatus status = ippsMagnitude_32f(x, y, mag, len);
+        if (status >= 0)
+        {
+            CV_IMPL_ADD(CV_IMPL_IPP);
+            return;
+        }
+        setIppErrorStatus();
+    }
+#endif
+
     int i = 0;
 
 #if CV_SIMD128
@@ -183,6 +198,19 @@ void magnitude(const float* x, const float* y, float* mag, int len)
 
 void magnitude(const double* x, const double* y, double* mag, int len)
 {
+#if defined(HAVE_IPP)
+    CV_IPP_CHECK()
+    {
+        IppStatus status = ippsMagnitude_64f(x, y, mag, len);
+        if (status >= 0)
+        {
+            CV_IMPL_ADD(CV_IMPL_IPP);
+            return;
+        }
+        setIppErrorStatus();
+    }
+#endif
+
     int i = 0;
 
 #if CV_SIMD128_64F
@@ -207,6 +235,18 @@ void magnitude(const double* x, const double* y, double* mag, int len)
 
 void invSqrt(const float* src, float* dst, int len)
 {
+#if defined(HAVE_IPP)
+    CV_IPP_CHECK()
+    {
+        if (ippsInvSqrt_32f_A21(src, dst, len) >= 0)
+        {
+            CV_IMPL_ADD(CV_IMPL_IPP);
+            return;
+        }
+        setIppErrorStatus();
+    }
+#endif
+
     int i = 0;
 
 #if CV_SIMD128
@@ -241,6 +281,18 @@ void invSqrt(const double* src, double* dst, int len)
 
 void sqrt(const float* src, float* dst, int len)
 {
+#if defined(HAVE_IPP)
+    CV_IPP_CHECK()
+    {
+        if (ippsSqrt_32f_A21(src, dst, len) >= 0)
+        {
+            CV_IMPL_ADD(CV_IMPL_IPP);
+            return;
+        }
+        setIppErrorStatus();
+    }
+#endif
+
     int i = 0;
 
 #if CV_SIMD128
@@ -260,6 +312,18 @@ void sqrt(const float* src, float* dst, int len)
 
 void sqrt(const double* src, double* dst, int len)
 {
+#if defined(HAVE_IPP)
+    CV_IPP_CHECK()
+    {
+        if (ippsSqrt_64f_A50(src, dst, len) >= 0)
+        {
+            CV_IMPL_ADD(CV_IMPL_IPP);
+            return;
+        }
+        setIppErrorStatus();
+    }
+#endif
+
     int i = 0;
 
 #if CV_SIMD128_64F