From ebc142b1d8ca6fbfe90f3f3f450269c1a883a2d2 Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.a.alekhin@gmail.com>
Date: Wed, 25 Apr 2018 22:41:16 +0300
Subject: [PATCH] Merge pull request #1623 from alalek:android_pack_fix_contrib

* android: fix build warnings

* build: fix warnings
---
 modules/bioinspired/src/retina_ocl.cpp        |  5 +-
 .../surface_matching/src/hash_murmur86.hpp    | 63 +++++--------------
 .../src/selectivesearchsegmentation.cpp       |  2 +
 3 files changed, 21 insertions(+), 49 deletions(-)

diff --git a/modules/bioinspired/src/retina_ocl.cpp b/modules/bioinspired/src/retina_ocl.cpp
index 23744587c..b48a412a1 100644
--- a/modules/bioinspired/src/retina_ocl.cpp
+++ b/modules/bioinspired/src/retina_ocl.cpp
@@ -391,7 +391,6 @@ bool RetinaOCLImpl::convertToColorPlanes(const UMat& input, UMat &output)
     else
     {
         CV_Error(-1, "Retina ocl only support 1, 3, 4 channel input");
-        return false;
     }
 }
 void RetinaOCLImpl::convertToInterleaved(const UMat& input, bool colorMode, UMat &output)
@@ -449,8 +448,8 @@ void RetinaOCLImpl::getMagnoRAW(OutputArray retinaOutput_magno)
 
 // unimplemented interfaces:
 void RetinaOCLImpl::applyFastToneMapping(InputArray /*inputImage*/, OutputArray /*outputToneMappedImage*/) { NOT_IMPLEMENTED; }
-const Mat RetinaOCLImpl::getMagnoRAW() const { NOT_IMPLEMENTED; return Mat(); }
-const Mat RetinaOCLImpl::getParvoRAW() const { NOT_IMPLEMENTED; return Mat(); }
+const Mat RetinaOCLImpl::getMagnoRAW() const { NOT_IMPLEMENTED; }
+const Mat RetinaOCLImpl::getParvoRAW() const { NOT_IMPLEMENTED; }
 
 ///////////////////////////////////////
 ///////// BasicRetinaFilter ///////////
diff --git a/modules/surface_matching/src/hash_murmur86.hpp b/modules/surface_matching/src/hash_murmur86.hpp
index 7b7d01524..2c6b04601 100644
--- a/modules/surface_matching/src/hash_murmur86.hpp
+++ b/modules/surface_matching/src/hash_murmur86.hpp
@@ -78,59 +78,30 @@ void hashMurmurx86 ( const void * key, const int len, const uint seed, void * ou
 * ROTL32(x,r)      Rotate x left by r bits
 */
 
-/* Convention is to define __BYTE_ORDER == to one of these values */
-#if !defined(__BIG_ENDIAN)
-#define __BIG_ENDIAN 4321
-#endif
-#if !defined(__LITTLE_ENDIAN)
-#define __LITTLE_ENDIAN 1234
-#endif
-
-/* I386 */
-#if defined(_M_IX86) || defined(__i386__) || defined(__i386) || defined(i386)
-#define __BYTE_ORDER __LITTLE_ENDIAN
-#define UNALIGNED_SAFE
-#endif
-
-/* gcc 'may' define __LITTLE_ENDIAN__ or __BIG_ENDIAN__ to 1 (Note the trailing __),
-* or even _LITTLE_ENDIAN or _BIG_ENDIAN (Note the single _ prefix) */
-#if !defined(__BYTE_ORDER)
-#if defined(__LITTLE_ENDIAN__) && __LITTLE_ENDIAN__==1 || defined(_LITTLE_ENDIAN) && _LITTLE_ENDIAN==1
-#define __BYTE_ORDER __LITTLE_ENDIAN
-#elif defined(__BIG_ENDIAN__) && __BIG_ENDIAN__==1 || defined(_BIG_ENDIAN) && _BIG_ENDIAN==1
-#define __BYTE_ORDER __BIG_ENDIAN
-#endif
+#if (defined(_M_IX86) || defined(__i386__) || defined(__i386) || defined(i386))
+# define UNALIGNED_SAFE 1
 #endif
 
-/* gcc (usually) defines xEL/EB macros for ARM and MIPS endianess */
-#if !defined(__BYTE_ORDER)
-#if defined(__ARMEL__) || defined(__MIPSEL__)
-#define __BYTE_ORDER __LITTLE_ENDIAN
-#endif
-#if defined(__ARMEB__) || defined(__MIPSEB__)
-#define __BYTE_ORDER __BIG_ENDIAN
-#endif
+#ifndef UNALIGNED_SAFE
+# define UNALIGNED_SAFE 1
+#elif defined(UNALIGNED_SAFE) && !UNALIGNED_SAFE == 0
+# undef UNALIGNED_SAFE
 #endif
 
 /* Now find best way we can to READ_UINT32 */
-#if __BYTE_ORDER==__LITTLE_ENDIAN
-/* CPU endian matches murmurhash algorithm, so read 32-bit word directly */
-#define READ_UINT32(ptr)   (*((uint32_t*)(ptr)))
-#elif __BYTE_ORDER==__BIG_ENDIAN
-/* TODO: Add additional cases below where a compiler provided bswap32 is available */
-#if defined(__GNUC__) && (__GNUC__>4 || (__GNUC__==4 && __GNUC_MINOR__>=3))
-#define READ_UINT32(ptr)   (__builtin_bswap32(*((uint32_t*)(ptr))))
-#else
-/* Without a known fast bswap32 we're just as well off doing this */
-#define READ_UINT32(ptr)   (ptr[0]|ptr[1]<<8|ptr[2]<<16|ptr[3]<<24)
-#define UNALIGNED_SAFE
+#if (defined(_M_IX86) || defined(__i386__) || defined(__i386) || defined(i386)) \
+    || (defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
+# define READ_UINT32(ptr)   (*((uint32_t*)(ptr)))
+#elif (defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
+    && defined(__GNUC__) && (__GNUC__>4 || (__GNUC__==4 && __GNUC_MINOR__>=3))
+# define READ_UINT32(ptr)   (__builtin_bswap32(*((uint32_t*)(ptr))))
 #endif
-#else
-/* Unknown endianess so last resort is to read individual bytes */
-#define READ_UINT32(ptr)   (ptr[0]|ptr[1]<<8|ptr[2]<<16|ptr[3]<<24)
 
-/* Since we're not doing word-reads we can skip the messing about with realignment */
-#define UNALIGNED_SAFE
+#ifndef READ_UINT32
+/* Unknown endianess so last resort is to read individual bytes */
+# define READ_UINT32(ptr)   (ptr[0]|ptr[1]<<8|ptr[2]<<16|ptr[3]<<24)
+# undef UNALIGNED_SAFE
+# define UNALIGNED_SAFE 1
 #endif
 
 /*-----------------------------------------------------------------------------
diff --git a/modules/ximgproc/src/selectivesearchsegmentation.cpp b/modules/ximgproc/src/selectivesearchsegmentation.cpp
index a297280a5..05e80e063 100644
--- a/modules/ximgproc/src/selectivesearchsegmentation.cpp
+++ b/modules/ximgproc/src/selectivesearchsegmentation.cpp
@@ -58,6 +58,8 @@ namespace cv {
                     double rank;
                     Rect bounding_box;
 
+                    Region() : id(0), level(0), merged_to(0), rank(0) {}
+
                     friend std::ostream& operator<<(std::ostream& os, const Region& n);
 
                     bool operator <(const Region& n) const {