From ca46171246cac524af4ce81146cbc5f304fee15c Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@intel.com>
Date: Thu, 7 Dec 2017 19:16:11 +0300
Subject: [PATCH] 3rdparty: libpng patch

---
 3rdparty/libpng/opencv-libpng.patch | 38 +++++++++++++++++++++++++++++
 3rdparty/libpng/pngpriv.h           |  8 +++---
 2 files changed, 42 insertions(+), 4 deletions(-)
 create mode 100644 3rdparty/libpng/opencv-libpng.patch

diff --git a/3rdparty/libpng/opencv-libpng.patch b/3rdparty/libpng/opencv-libpng.patch
new file mode 100644
index 0000000000..e760e8d89f
--- /dev/null
+++ b/3rdparty/libpng/opencv-libpng.patch
@@ -0,0 +1,38 @@
+--- a/3rdparty/libpng/pngpriv.h
++++ b/3rdparty/libpng/pngpriv.h
+@@ -214,7 +214,7 @@
+ #   endif
+ #endif
+ 
+-#if PNG_INTEL_SSE_OPT > 0
++#if defined(PNG_INTEL_SSE_OPT) && PNG_INTEL_SSE_OPT > 0
+ #   ifndef PNG_INTEL_SSE_IMPLEMENTATION
+ #      if defined(__SSE4_1__) || defined(__AVX__)
+           /* We are not actually using AVX, but checking for AVX is the best
+@@ -547,7 +547,7 @@
+ 
+ /* Memory model/platform independent fns */
+ #ifndef PNG_ABORT
+-#  ifdef _WINDOWS_
++#  if defined(_WINDOWS_) && !defined(WINRT)
+ #    define PNG_ABORT() ExitProcess(0)
+ #  else
+ #    define PNG_ABORT() abort()
+@@ -1340,7 +1340,7 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_vsx,(png_row_infop
+     row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+ #endif
+ 
+-#if PNG_INTEL_SSE_IMPLEMENTATION > 0
++#if defined(PNG_INTEL_SSE_IMPLEMENTATION) && PNG_INTEL_SSE_IMPLEMENTATION > 0
+ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_sse2,(png_row_infop
+     row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_sse2,(png_row_infop
+@@ -2099,7 +2099,7 @@ PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_msa,
+    (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
+ #endif
+ 
+-#  if PNG_INTEL_SSE_IMPLEMENTATION > 0
++#  if defined(PNG_INTEL_SSE_IMPLEMENTATION) && PNG_INTEL_SSE_IMPLEMENTATION > 0
+ PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_sse2,
+    (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
+ #  endif
\ No newline at end of file
diff --git a/3rdparty/libpng/pngpriv.h b/3rdparty/libpng/pngpriv.h
index 1f2e90f2b3..4e7278f174 100644
--- a/3rdparty/libpng/pngpriv.h
+++ b/3rdparty/libpng/pngpriv.h
@@ -214,7 +214,7 @@
 #   endif
 #endif
 
-#if PNG_INTEL_SSE_OPT > 0
+#if defined(PNG_INTEL_SSE_OPT) && PNG_INTEL_SSE_OPT > 0
 #   ifndef PNG_INTEL_SSE_IMPLEMENTATION
 #      if defined(__SSE4_1__) || defined(__AVX__)
           /* We are not actually using AVX, but checking for AVX is the best
@@ -547,7 +547,7 @@
 
 /* Memory model/platform independent fns */
 #ifndef PNG_ABORT
-#  ifdef _WINDOWS_
+#  if defined(_WINDOWS_) && !defined(WINRT)
 #    define PNG_ABORT() ExitProcess(0)
 #  else
 #    define PNG_ABORT() abort()
@@ -1340,7 +1340,7 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_vsx,(png_row_infop
     row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
 #endif
 
-#if PNG_INTEL_SSE_IMPLEMENTATION > 0
+#if defined(PNG_INTEL_SSE_IMPLEMENTATION) && PNG_INTEL_SSE_IMPLEMENTATION > 0
 PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_sse2,(png_row_infop
     row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
 PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_sse2,(png_row_infop
@@ -2099,7 +2099,7 @@ PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_msa,
    (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
 #endif
 
-#  if PNG_INTEL_SSE_IMPLEMENTATION > 0
+#  if defined(PNG_INTEL_SSE_IMPLEMENTATION) && PNG_INTEL_SSE_IMPLEMENTATION > 0
 PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_sse2,
    (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
 #  endif