Update to SDL3

1 files changed, 151 insertions, 0 deletions

diff --git a/src/contrib/SDL-3.2.20/include/SDL3/SDL_main_impl.h b/src/contrib/SDL-3.2.20/include/SDL3/SDL_main_impl.h
new file mode 100644
index 0000000..14ebb42
--- /dev/null
+++ b/src/contrib/SDL-3.2.20/include/SDL3/SDL_main_impl.h
@@ -0,0 +1,151 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+/* WIKI CATEGORY: Main */
+
+#ifndef SDL_main_impl_h_
+#define SDL_main_impl_h_
+
+#ifndef SDL_main_h_
+#error "This header should not be included directly, but only via SDL_main.h!"
+#endif
+
+/* if someone wants to include SDL_main.h but doesn't want the main handing magic,
+   (maybe to call SDL_RegisterApp()) they can #define SDL_MAIN_HANDLED first.
+   SDL_MAIN_NOIMPL is for SDL-internal usage (only affects implementation,
+   not definition of SDL_MAIN_AVAILABLE etc in SDL_main.h) and if the user wants
+   to have the SDL_main implementation (from this header) in another source file
+   than their main() function, for example if SDL_main requires C++
+   and main() is implemented in plain C */
+#if !defined(SDL_MAIN_HANDLED) && !defined(SDL_MAIN_NOIMPL)
+
+    /* the implementations below must be able to use the implement real main(), nothing renamed
+       (the user's main() will be renamed to SDL_main so it can be called from here) */
+    #ifdef main
+        #undef main
+    #endif
+
+    #ifdef SDL_MAIN_USE_CALLBACKS
+
+        #if 0
+            /* currently there are no platforms that _need_ a magic entry point here
+               for callbacks, but if one shows up, implement it here. */
+
+        #else /* use a standard SDL_main, which the app SHOULD NOT ALSO SUPPLY. */
+
+            /* this define makes the normal SDL_main entry point stuff work...we just provide SDL_main() instead of the app. */
+            #define SDL_MAIN_CALLBACK_STANDARD 1
+
+            int SDL_main(int argc, char **argv)
+            {
+                return SDL_EnterAppMainCallbacks(argc, argv, SDL_AppInit, SDL_AppIterate, SDL_AppEvent, SDL_AppQuit);
+            }
+
+        #endif  /* platform-specific tests */
+
+    #endif  /* SDL_MAIN_USE_CALLBACKS */
+
+
+    /* set up the usual SDL_main stuff if we're not using callbacks or if we are but need the normal entry point,
+       unless the real entry point needs to be somewhere else entirely, like Android where it's in Java code */
+    #if (!defined(SDL_MAIN_USE_CALLBACKS) || defined(SDL_MAIN_CALLBACK_STANDARD)) && !defined(SDL_MAIN_EXPORTED)
+
+        #if defined(SDL_PLATFORM_PRIVATE_MAIN)
+            /* Private platforms may have their own ideas about entry points. */
+            #include "SDL_main_impl_private.h"
+
+        #elif defined(SDL_PLATFORM_WINDOWS)
+
+            /* these defines/typedefs are needed for the WinMain() definition */
+            #ifndef WINAPI
+                #define WINAPI __stdcall
+            #endif
+
+            typedef struct HINSTANCE__ * HINSTANCE;
+            typedef char *LPSTR;
+            typedef wchar_t *PWSTR;
+
+            /* The VC++ compiler needs main/wmain defined, but not for GDK */
+            #if defined(_MSC_VER) && !defined(SDL_PLATFORM_GDK)
+
+                /* This is where execution begins [console apps] */
+                #if defined(UNICODE) && UNICODE
+                    int wmain(int argc, wchar_t *wargv[], wchar_t *wenvp)
+                    {
+                        (void)argc;
+                        (void)wargv;
+                        (void)wenvp;
+                        return SDL_RunApp(0, NULL, SDL_main, NULL);
+                    }
+                #else /* ANSI */
+                    int main(int argc, char *argv[])
+                    {
+                        (void)argc;
+                        (void)argv;
+                        return SDL_RunApp(0, NULL, SDL_main, NULL);
+                    }
+                #endif /* UNICODE */
+
+            #endif /* _MSC_VER && ! SDL_PLATFORM_GDK */
+
+            /* This is where execution begins [windowed apps and GDK] */
+
+            #ifdef __cplusplus
+            extern "C" {
+            #endif
+
+            #if defined(UNICODE) && UNICODE
+            int WINAPI wWinMain(HINSTANCE hInst, HINSTANCE hPrev, PWSTR szCmdLine, int sw)
+            #else /* ANSI */
+            int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw)
+            #endif
+            {
+                (void)hInst;
+                (void)hPrev;
+                (void)szCmdLine;
+                (void)sw;
+                return SDL_RunApp(0, NULL, SDL_main, NULL);
+            }
+
+            #ifdef __cplusplus
+            } /* extern "C" */
+            #endif
+
+            /* end of SDL_PLATFORM_WINDOWS impls */
+
+        #else /* platforms that use a standard main() and just call SDL_RunApp(), like iOS and 3DS */
+            int main(int argc, char *argv[])
+            {
+                return SDL_RunApp(argc, argv, SDL_main, NULL);
+            }
+
+            /* end of impls for standard-conforming platforms */
+
+        #endif /* SDL_PLATFORM_WIN32 etc */
+
+    #endif /* !defined(SDL_MAIN_USE_CALLBACKS) || defined(SDL_MAIN_CALLBACK_STANDARD) */
+
+    /* rename users main() function to SDL_main() so it can be called from the wrappers above */
+    #define main    SDL_main
+
+#endif /* SDL_MAIN_HANDLED */
+
+#endif /* SDL_main_impl_h_ */