From 30f41c02aec763d32e62351452da9ef582bc3472 Mon Sep 17 00:00:00 2001
From: 3gg <3gg@shellblade.net>
Date: Fri, 6 Mar 2026 13:30:59 -0800
Subject: Move contrib libraries to contrib repo

---
 .../SDL-3.2.8/src/thread/generic/SDL_sysmutex.c    | 132 ---------------------
 1 file changed, 132 deletions(-)
 delete mode 100644 contrib/SDL-3.2.8/src/thread/generic/SDL_sysmutex.c

(limited to 'contrib/SDL-3.2.8/src/thread/generic/SDL_sysmutex.c')

diff --git a/contrib/SDL-3.2.8/src/thread/generic/SDL_sysmutex.c b/contrib/SDL-3.2.8/src/thread/generic/SDL_sysmutex.c
deleted file mode 100644
index e58da67..0000000
--- a/contrib/SDL-3.2.8/src/thread/generic/SDL_sysmutex.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
-  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.
-*/
-#include "SDL_internal.h"
-
-// An implementation of mutexes using semaphores
-
-#include "SDL_systhread_c.h"
-
-struct SDL_Mutex
-{
-    int recursive;
-    SDL_ThreadID owner;
-    SDL_Semaphore *sem;
-};
-
-SDL_Mutex *SDL_CreateMutex(void)
-{
-    SDL_Mutex *mutex = (SDL_Mutex *)SDL_calloc(1, sizeof(*mutex));
-
-#ifndef SDL_THREADS_DISABLED
-    if (mutex) {
-        // Create the mutex semaphore, with initial value 1
-        mutex->sem = SDL_CreateSemaphore(1);
-        mutex->recursive = 0;
-        mutex->owner = 0;
-        if (!mutex->sem) {
-            SDL_free(mutex);
-            mutex = NULL;
-        }
-    }
-#endif // !SDL_THREADS_DISABLED
-
-    return mutex;
-}
-
-void SDL_DestroyMutex(SDL_Mutex *mutex)
-{
-    if (mutex) {
-        if (mutex->sem) {
-            SDL_DestroySemaphore(mutex->sem);
-        }
-        SDL_free(mutex);
-    }
-}
-
-void SDL_LockMutex(SDL_Mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS  // clang doesn't know about NULL mutexes
-{
-#ifndef SDL_THREADS_DISABLED
-    if (mutex != NULL) {
-        SDL_ThreadID this_thread = SDL_GetCurrentThreadID();
-        if (mutex->owner == this_thread) {
-            ++mutex->recursive;
-        } else {
-            /* The order of operations is important.
-               We set the locking thread id after we obtain the lock
-               so unlocks from other threads will fail.
-             */
-            SDL_WaitSemaphore(mutex->sem);
-            mutex->owner = this_thread;
-            mutex->recursive = 0;
-        }
-    }
-#endif // SDL_THREADS_DISABLED
-}
-
-bool SDL_TryLockMutex(SDL_Mutex *mutex)
-{
-    bool result = true;
-#ifndef SDL_THREADS_DISABLED
-    if (mutex) {
-        SDL_ThreadID this_thread = SDL_GetCurrentThreadID();
-        if (mutex->owner == this_thread) {
-            ++mutex->recursive;
-        } else {
-            /* The order of operations is important.
-               We set the locking thread id after we obtain the lock
-               so unlocks from other threads will fail.
-             */
-            result = SDL_TryWaitSemaphore(mutex->sem);
-            if (result) {
-                mutex->owner = this_thread;
-                mutex->recursive = 0;
-            }
-        }
-    }
-#endif // SDL_THREADS_DISABLED
-    return result;
-}
-
-void SDL_UnlockMutex(SDL_Mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS  // clang doesn't know about NULL mutexes
-{
-#ifndef SDL_THREADS_DISABLED
-    if (mutex != NULL) {
-        // If we don't own the mutex, we can't unlock it
-        if (SDL_GetCurrentThreadID() != mutex->owner) {
-            SDL_assert(!"Tried to unlock a mutex we don't own!");
-            return; // (undefined behavior!) SDL_SetError("mutex not owned by this thread");
-        }
-
-        if (mutex->recursive) {
-            --mutex->recursive;
-        } else {
-            /* The order of operations is important.
-               First reset the owner so another thread doesn't lock
-               the mutex and set the ownership before we reset it,
-               then release the lock semaphore.
-             */
-            mutex->owner = 0;
-            SDL_SignalSemaphore(mutex->sem);
-        }
-    }
-#endif // SDL_THREADS_DISABLED
-}
-
-- 
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