From e0a1f82bdb557bd65cd251fc4806cca997e7017e Mon Sep 17 00:00:00 2001
From: Alberto Fustinoni <claudiuslollarius@gmail.com>
Date: Fri, 5 Jan 2018 17:44:34 +0900
Subject: [PATCH] Enable CHD on UWP

---
 Makefile                                              |  2 --
 .../src/libFLAC/windows_unicode_filenames.c           | 11 +++++++++++
 deps/libchdr/coretypes.h                              |  4 ++++
 deps/lzma-16.04/C/CpuArch.c                           |  4 ++++
 4 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index ff52ea9..5ee81bb 100644
--- a/Makefile
+++ b/Makefile
@@ -240,8 +240,6 @@ else ifneq (,$(findstring windows_msvc2017,$(platform)))
 		MSVC2017CompileFlags = -DWINAPI_FAMILY=WINAPI_FAMILY_APP -DWINDLL -D_UNICODE -DUNICODE -DWRL_NO_DEFAULT_LIB -FS
 		LDFLAGS += -APPCONTAINER -NXCOMPAT -DYNAMICBASE -MANIFEST:NO -LTCG -OPT:REF -SUBSYSTEM:CONSOLE -MANIFESTUAC:NO -OPT:ICF -ERRORREPORT:PROMPT -NOLOGO -TLBID:1 -DEBUG:FULL -WINMD:NO
 		LIBS += WindowsApp.lib
-
-            HAVE_CHD = 0
 	endif
 
 	CFLAGS += $(MSVC2017CompileFlags)
diff --git a/deps/flac-1.3.2/src/libFLAC/windows_unicode_filenames.c b/deps/flac-1.3.2/src/libFLAC/windows_unicode_filenames.c
index 2404e31..3c91668 100644
--- a/deps/flac-1.3.2/src/libFLAC/windows_unicode_filenames.c
+++ b/deps/flac-1.3.2/src/libFLAC/windows_unicode_filenames.c
@@ -185,6 +185,16 @@ int flac_internal_rename_utf8(const char *oldname, const char *newname)
 
 HANDLE WINAPI flac_internal_CreateFile_utf8(const char *lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)
 {
+#if _MSC_VER > 1900 && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
+	wchar_t *wname;
+	HANDLE handle = INVALID_HANDLE_VALUE;
+
+	if ((wname = wchar_from_utf8(lpFileName)) != NULL) {
+
+		handle = CreateFile2(wname, dwDesiredAccess, dwShareMode, CREATE_ALWAYS, NULL);
+		free(wname);
+	}
+#else
 	if (!utf8_filenames) {
 		return CreateFileA(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
 	} else {
@@ -198,4 +208,5 @@ HANDLE WINAPI flac_internal_CreateFile_utf8(const char *lpFileName, DWORD dwDesi
 
 		return handle;
 	}
+#endif
 }
diff --git a/deps/libchdr/coretypes.h b/deps/libchdr/coretypes.h
index 80f161f..6264bea 100644
--- a/deps/libchdr/coretypes.h
+++ b/deps/libchdr/coretypes.h
@@ -4,6 +4,10 @@
 #include <stdint.h>
 #include <stdio.h>
 
+#ifdef __LIBRETRO__
+#include <streams/file_stream_transforms.h>
+#endif
+
 #define ARRAY_LENGTH(x) (sizeof(x)/sizeof(x[0]))
 
 typedef uint64_t UINT64;
diff --git a/deps/lzma-16.04/C/CpuArch.c b/deps/lzma-16.04/C/CpuArch.c
index f835c2b..098e301 100644
--- a/deps/lzma-16.04/C/CpuArch.c
+++ b/deps/lzma-16.04/C/CpuArch.c
@@ -177,11 +177,15 @@ Bool CPU_Is_InOrder()
 #include <windows.h>
 static Bool CPU_Sys_Is_SSE_Supported()
 {
+#if _MSC_VER >= 1900 && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
+  return True;
+#else
   OSVERSIONINFO vi;
   vi.dwOSVersionInfoSize = sizeof(vi);
   if (!GetVersionEx(&vi))
     return False;
   return (vi.dwMajorVersion >= 5);
+#endif
 }
 #define CHECK_SYS_SSE_SUPPORT if (!CPU_Sys_Is_SSE_Supported()) return False;
 #else