Fixed signed/unsigned comparison warning

src/camera/mediafoundation/SDL_camera_mediafoundation.c

@@ -105,7 +105,8 @@ static SDL_PixelFormatEnum MFVidFmtGuidToSDLFmt(const GUID *guid)
     return SDL_PIXELFORMAT_UNKNOWN;
 }
 
-static const GUID *SDLFmtToMFVidFmtGuid(Uint32 sdlfmt) {
+static const GUID *SDLFmtToMFVidFmtGuid(SDL_PixelFormatEnum sdlfmt)
+{
     for (size_t i = 0; i < SDL_arraysize(fmtmappings); i++) {
         if (fmtmappings[i].sdlfmt == sdlfmt) {
             return fmtmappings[i].guid;

src/render/SDL_render.c

@@ -1185,7 +1185,7 @@ static SDL_bool IsSupportedBlendMode(SDL_Renderer *renderer, SDL_BlendMode blend
     }
 }
 
-static SDL_bool IsSupportedFormat(SDL_Renderer *renderer, Uint32 format)
+static SDL_bool IsSupportedFormat(SDL_Renderer *renderer, SDL_PixelFormatEnum format)
 {
     int i;
 
@@ -1197,7 +1197,7 @@ static SDL_bool IsSupportedFormat(SDL_Renderer *renderer, Uint32 format)
     return SDL_FALSE;
 }
 
-static Uint32 GetClosestSupportedFormat(SDL_Renderer *renderer, Uint32 format)
+static Uint32 GetClosestSupportedFormat(SDL_Renderer *renderer, SDL_PixelFormatEnum format)
 {
     int i;