use WIN_StringToUTF8W instead of WIN_StringToUTF8 where needed (#2)

cf. bug #5435.
- SDL_wasapi_win32.c (GetWasapiDeviceName): pwszVal is WCHAR*
- windows/SDL_sysfilesystem.c (SDL_GetBasePath, SDL_GetPrefPath)
- windows/SDL_sysurl.c (SDL_SYS_OpenURL): wurl is WCHAR*
- SDL_windowssensor.c (ConnectSensor): bstr_name is WCHAR*
- windows/SDL_systhread.c (SDL_SYS_SetupThread): strw is WCHAR*

src/audio/wasapi/SDL_wasapi_win32.c

@@ -79,7 +79,7 @@ GetWasapiDeviceName(IMMDevice *device)
         PROPVARIANT var;
         PropVariantInit(&var);
         if (SUCCEEDED(IPropertyStore_GetValue(props, &SDL_PKEY_Device_FriendlyName, &var))) {
-            utf8dev = WIN_StringToUTF8(var.pwszVal);
+            utf8dev = WIN_StringToUTF8W(var.pwszVal);
         }
         PropVariantClear(&var);
         IPropertyStore_Release(props);

src/filesystem/windows/SDL_sysfilesystem.c

@@ -93,7 +93,7 @@ SDL_GetBasePath(void)
     SDL_assert(i > 0); /* Should have been an absolute path. */
     path[i+1] = '\0';  /* chop off filename. */
 
-    retval = WIN_StringToUTF8(path);
+    retval = WIN_StringToUTF8W(path);
     SDL_free(path);
 
     return retval;
@@ -130,13 +130,13 @@ SDL_GetPrefPath(const char *org, const char *app)
         return NULL;
     }
 
-    worg = WIN_UTF8ToString(org);
+    worg = WIN_UTF8ToStringW(org);
     if (worg == NULL) {
         SDL_OutOfMemory();
         return NULL;
     }
 
-    wapp = WIN_UTF8ToString(app);
+    wapp = WIN_UTF8ToStringW(app);
     if (wapp == NULL) {
         SDL_free(worg);
         SDL_OutOfMemory();
@@ -181,7 +181,7 @@ SDL_GetPrefPath(const char *org, const char *app)
 
     lstrcatW(path, L"\\");
 
-    retval = WIN_StringToUTF8(path);
+    retval = WIN_StringToUTF8W(path);
 
     return retval;
 }

src/misc/windows/SDL_sysurl.c

@@ -37,7 +37,7 @@ SDL_SYS_OpenURL(const char *url)
         return WIN_SetErrorFromHRESULT("CoInitialize failed", hr);
     }
 
-    wurl = WIN_UTF8ToString(url);
+    wurl = WIN_UTF8ToStringW(url);
     if (wurl == NULL) {
         WIN_CoUninitialize();
         return SDL_OutOfMemory();

src/misc/winrt/SDL_sysurl.cpp

@@ -18,8 +18,7 @@
      misrepresented as being the original software.
   3. This notice may not be removed or altered from any source distribution.
 */
-
+#include <windows.h>
-#include <Windows.h>
 
 #include "../../core/windows/SDL_windows.h"
 #include "../SDL_sysurl.h"
@@ -27,7 +26,7 @@
 int
 SDL_SYS_OpenURL(const char *url)
 {
-    WCHAR *wurl = WIN_UTF8ToString(url);
+    WCHAR *wurl = WIN_UTF8ToStringW(url);
     if (!wurl) {
         return SDL_OutOfMemory();
     }

src/sensor/windows/SDL_windowssensor.c

@@ -279,7 +279,7 @@ static int ConnectSensor(ISensor *sensor)
 
     hr = ISensor_GetFriendlyName(sensor, &bstr_name);
     if (SUCCEEDED(hr) && bstr_name) {
-        name = WIN_StringToUTF8(bstr_name);
+        name = WIN_StringToUTF8W(bstr_name);
     } else {
         name = SDL_strdup("Unknown Sensor");
     }

src/thread/windows/SDL_systhread.c

@@ -170,7 +170,7 @@ SDL_SYS_SetupThread(const char *name)
         }
 
         if (pSetThreadDescription != NULL) {
-            WCHAR *strw = WIN_UTF8ToString(name);
+            WCHAR *strw = WIN_UTF8ToStringW(name);
             if (strw) {
                 pSetThreadDescription(GetCurrentThread(), strw);
                 SDL_free(strw);