Initial commit

5 files changed, 403 insertions, 0 deletions

diff --git a/contrib/SDL-3.2.8/src/thread/vita/SDL_sysmutex.c b/contrib/SDL-3.2.8/src/thread/vita/SDL_sysmutex.c
new file mode 100644
index 0000000..8a3664c
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/thread/vita/SDL_sysmutex.c
@@ -0,0 +1,97 @@
+/*
+  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"
+
+#ifdef SDL_THREAD_VITA
+
+#include "SDL_systhread_c.h"
+
+#include <psp2/kernel/threadmgr.h>
+#include <psp2/kernel/error.h>
+
+struct SDL_Mutex
+{
+    SceKernelLwMutexWork lock;
+};
+
+SDL_Mutex *SDL_CreateMutex(void)
+{
+    SDL_Mutex *mutex = (SDL_Mutex *)SDL_malloc(sizeof(*mutex));
+    if (mutex) {
+        const SceInt32 res = sceKernelCreateLwMutex(
+                                &mutex->lock,
+                                "SDL mutex",
+                                SCE_KERNEL_MUTEX_ATTR_RECURSIVE,
+                                0,
+                                NULL);
+
+        if (res < 0) {
+            SDL_free(mutex);
+            mutex = NULL;
+            SDL_SetError("Error trying to create mutex: %x", res);
+        }
+    }
+    return mutex;
+}
+
+void SDL_DestroyMutex(SDL_Mutex *mutex)
+{
+    if (mutex) {
+        sceKernelDeleteLwMutex(&mutex->lock);
+        SDL_free(mutex);
+    }
+}
+
+void SDL_LockMutex(SDL_Mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS  // clang doesn't know about NULL mutexes
+{
+    if (mutex) {
+        const SceInt32 res = sceKernelLockLwMutex(&mutex->lock, 1, NULL);
+        SDL_assert(res == SCE_KERNEL_OK);  // assume we're in a lot of trouble if this assert fails.
+    }
+}
+
+bool SDL_TryLockMutex(SDL_Mutex *mutex)
+{
+    bool result = true;
+
+    if (mutex) {
+        const SceInt32 res = sceKernelTryLockLwMutex(&mutex->lock, 1);
+        if (res == SCE_KERNEL_OK) {
+            result = true;
+        } else if (res == SCE_KERNEL_ERROR_MUTEX_FAILED_TO_OWN) {
+            result = false;
+        } else {
+            SDL_assert(res == SCE_KERNEL_OK); // assume we're in a lot of trouble if this assert fails.
+            result = false;
+        }
+    }
+    return result;
+}
+
+void SDL_UnlockMutex(SDL_Mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS  // clang doesn't know about NULL mutexes
+{
+    if (mutex) {
+        const SceInt32 res = sceKernelUnlockLwMutex(&mutex->lock, 1);
+        SDL_assert(res == SCE_KERNEL_OK);  // assume we're in a lot of trouble if this assert fails.
+    }
+}
+
+#endif // SDL_THREAD_VITA
diff --git a/contrib/SDL-3.2.8/src/thread/vita/SDL_sysmutex_c.h b/contrib/SDL-3.2.8/src/thread/vita/SDL_sysmutex_c.h
new file mode 100644
index 0000000..4b0c6f8
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/thread/vita/SDL_sysmutex_c.h
@@ -0,0 +1,21 @@
+/*
+  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"
diff --git a/contrib/SDL-3.2.8/src/thread/vita/SDL_syssem.c b/contrib/SDL-3.2.8/src/thread/vita/SDL_syssem.c
new file mode 100644
index 0000000..3c6d28a
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/thread/vita/SDL_syssem.c
@@ -0,0 +1,122 @@
+/*
+  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"
+
+#ifdef SDL_THREAD_VITA
+
+// Semaphore functions for the VITA.
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <psp2/types.h>
+#include <psp2/kernel/error.h>
+#include <psp2/kernel/threadmgr.h>
+
+struct SDL_Semaphore
+{
+    SceUID semid;
+};
+
+// Create a semaphore
+SDL_Semaphore *SDL_CreateSemaphore(Uint32 initial_value)
+{
+    SDL_Semaphore *sem;
+
+    sem = (SDL_Semaphore *)SDL_malloc(sizeof(*sem));
+    if (sem) {
+        // TODO: Figure out the limit on the maximum value.
+        sem->semid = sceKernelCreateSema("SDL sema", 0, initial_value, 255, NULL);
+        if (sem->semid < 0) {
+            SDL_SetError("Couldn't create semaphore");
+            SDL_free(sem);
+            sem = NULL;
+        }
+    }
+
+    return sem;
+}
+
+// Free the semaphore
+void SDL_DestroySemaphore(SDL_Semaphore *sem)
+{
+    if (sem) {
+        if (sem->semid > 0) {
+            sceKernelDeleteSema(sem->semid);
+            sem->semid = 0;
+        }
+
+        SDL_free(sem);
+    }
+}
+
+/* TODO: This routine is a bit overloaded.
+ * If the timeout is 0 then just poll the semaphore; if it's -1, pass
+ * NULL to sceKernelWaitSema() so that it waits indefinitely; and if the timeout
+ * is specified, convert it to microseconds. */
+bool SDL_WaitSemaphoreTimeoutNS(SDL_Semaphore *sem, Sint64 timeoutNS)
+{
+    SceUInt timeoutUS;
+    SceUInt *pTimeout = NULL;
+
+    if (!sem) {
+        return true;
+    }
+
+    if (timeoutNS == 0) {
+        return (sceKernelPollSema(sem->semid, 1) == 0);
+    }
+
+    if (timeoutNS > 0) {
+        timeoutUS = (SceUInt)SDL_NS_TO_US(timeoutNS); // Convert to microseconds.
+        pTimeout = &timeoutUS;
+    }
+
+    return (sceKernelWaitSema(sem->semid, 1, pTimeout) == 0);
+}
+
+// Returns the current count of the semaphore
+Uint32 SDL_GetSemaphoreValue(SDL_Semaphore *sem)
+{
+    SceKernelSemaInfo info;
+    info.size = sizeof(info);
+
+    if (!sem) {
+        return 0;
+    }
+
+    if (sceKernelGetSemaInfo(sem->semid, &info) >= 0) {
+        return info.currentCount;
+    }
+
+    return 0;
+}
+
+void SDL_SignalSemaphore(SDL_Semaphore *sem)
+{
+    if (!sem) {
+        return;
+    }
+
+    sceKernelSignalSema(sem->semid, 1);
+}
+
+#endif // SDL_THREAD_VITA
diff --git a/contrib/SDL-3.2.8/src/thread/vita/SDL_systhread.c b/contrib/SDL-3.2.8/src/thread/vita/SDL_systhread.c
new file mode 100644
index 0000000..344d911
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/thread/vita/SDL_systhread.c
@@ -0,0 +1,139 @@
+/*
+  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"
+
+#ifdef SDL_THREAD_VITA
+
+// VITA thread management routines for SDL
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../SDL_systhread.h"
+#include "../SDL_thread_c.h"
+#include <psp2/types.h>
+#include <psp2/kernel/threadmgr.h>
+
+#define VITA_THREAD_STACK_SIZE_MIN     0x1000    // 4KiB
+#define VITA_THREAD_STACK_SIZE_MAX     0x2000000 // 32MiB
+#define VITA_THREAD_STACK_SIZE_DEFAULT 0x10000   // 64KiB
+#define VITA_THREAD_NAME_MAX           32
+
+#define VITA_THREAD_PRIORITY_LOW           191
+#define VITA_THREAD_PRIORITY_NORMAL        160
+#define VITA_THREAD_PRIORITY_HIGH          112
+#define VITA_THREAD_PRIORITY_TIME_CRITICAL 64
+
+static int ThreadEntry(SceSize args, void *argp)
+{
+    SDL_RunThread(*(SDL_Thread **)argp);
+    return 0;
+}
+
+bool SDL_SYS_CreateThread(SDL_Thread *thread,
+                          SDL_FunctionPointer pfnBeginThread,
+                          SDL_FunctionPointer pfnEndThread)
+
+{
+    char thread_name[VITA_THREAD_NAME_MAX];
+    size_t stack_size = VITA_THREAD_STACK_SIZE_DEFAULT;
+
+    SDL_strlcpy(thread_name, "SDL thread", VITA_THREAD_NAME_MAX);
+    if (thread->name) {
+        SDL_strlcpy(thread_name, thread->name, VITA_THREAD_NAME_MAX);
+    }
+
+    if (thread->stacksize) {
+        if (thread->stacksize < VITA_THREAD_STACK_SIZE_MIN) {
+            thread->stacksize = VITA_THREAD_STACK_SIZE_MIN;
+        }
+        if (thread->stacksize > VITA_THREAD_STACK_SIZE_MAX) {
+            thread->stacksize = VITA_THREAD_STACK_SIZE_MAX;
+        }
+        stack_size = thread->stacksize;
+    }
+
+    // Create new thread with the same priority as the current thread
+    thread->handle = sceKernelCreateThread(
+        thread_name, // name
+        ThreadEntry, // function to run
+        0,           // priority. 0 means priority of calling thread
+        stack_size,  // stack size
+        0,           // attributes. always 0
+        0,           // cpu affinity mask. 0 = all CPUs
+        NULL         // opt. always NULL
+    );
+
+    if (thread->handle < 0) {
+        return SDL_SetError("sceKernelCreateThread() failed");
+    }
+
+    sceKernelStartThread(thread->handle, 4, &thread);
+    return true;
+}
+
+void SDL_SYS_SetupThread(const char *name)
+{
+    // Do nothing.
+}
+
+SDL_ThreadID SDL_GetCurrentThreadID(void)
+{
+    return (SDL_ThreadID)sceKernelGetThreadId();
+}
+
+void SDL_SYS_WaitThread(SDL_Thread *thread)
+{
+    sceKernelWaitThreadEnd(thread->handle, NULL, NULL);
+    sceKernelDeleteThread(thread->handle);
+}
+
+void SDL_SYS_DetachThread(SDL_Thread *thread)
+{
+    // Do nothing.
+}
+
+bool SDL_SYS_SetThreadPriority(SDL_ThreadPriority priority)
+{
+    int value = VITA_THREAD_PRIORITY_NORMAL;
+
+    switch (priority) {
+    case SDL_THREAD_PRIORITY_LOW:
+        value = VITA_THREAD_PRIORITY_LOW;
+        break;
+    case SDL_THREAD_PRIORITY_NORMAL:
+        value = VITA_THREAD_PRIORITY_NORMAL;
+        break;
+    case SDL_THREAD_PRIORITY_HIGH:
+        value = VITA_THREAD_PRIORITY_HIGH;
+        break;
+    case SDL_THREAD_PRIORITY_TIME_CRITICAL:
+        value = VITA_THREAD_PRIORITY_TIME_CRITICAL;
+        break;
+    }
+
+    if (sceKernelChangeThreadPriority(0, value) < 0) {
+        return SDL_SetError("sceKernelChangeThreadPriority() failed");
+    }
+    return true;
+}
+
+#endif // SDL_THREAD_VITA
diff --git a/contrib/SDL-3.2.8/src/thread/vita/SDL_systhread_c.h b/contrib/SDL-3.2.8/src/thread/vita/SDL_systhread_c.h
new file mode 100644
index 0000000..b231ec7
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/thread/vita/SDL_systhread_c.h
@@ -0,0 +1,24 @@
+/*
+  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 <psp2/types.h>
+
+typedef SceUID SYS_ThreadHandle;