Merge commit 'dec0d4ec4153bf9fc2b78ae6c2df45b6ea8dde7a' as 'external/sdl/SDL'

This commit is contained in:
2023-07-25 22:27:55 +02:00
1663 changed files with 627495 additions and 0 deletions

View File

@@ -0,0 +1,110 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2023 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 the Symbian API. */
#include <e32std.h>
#include "SDL_systhread_c.h"
struct SDL_Mutex
{
TInt handle;
};
extern TInt CreateUnique(TInt (*aFunc)(const TDesC &aName, TAny *, TAny *), TAny *, TAny *);
static TInt NewMutex(const TDesC &aName, TAny *aPtr1, TAny *)
{
return ((RMutex *)aPtr1)->CreateGlobal(aName);
}
/* Create a mutex */
SDL_Mutex *SDL_CreateMutex(void)
{
RMutex rmutex;
TInt status = CreateUnique(NewMutex, &rmutex, NULL);
if (status != KErrNone) {
SDL_SetError("Couldn't create mutex.");
return NULL;
}
SDL_Mutex *mutex = new /*(ELeave)*/ SDL_Mutex;
mutex->handle = rmutex.Handle();
return mutex;
}
/* Free the mutex */
void SDL_DestroyMutex(SDL_Mutex *mutex)
{
if (mutex) {
RMutex rmutex;
rmutex.SetHandle(mutex->handle);
rmutex.Signal();
rmutex.Close();
delete (mutex);
mutex = NULL;
}
}
/* Lock the mutex */
int SDL_LockMutex(SDL_Mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS /* clang doesn't know about NULL mutexes */
{
if (mutex == NULL) {
return 0;
}
RMutex rmutex;
rmutex.SetHandle(mutex->handle);
rmutex.Wait();
return 0;
}
/* Try to lock the mutex */
#if 0
int SDL_TryLockMutex(SDL_Mutex *mutex)
{
if (mutex == NULL)
{
return 0;
}
// Not yet implemented.
return 0;
}
#endif
/* Unlock the mutex */
int SDL_UnlockMutex(SDL_Mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS /* clang doesn't know about NULL mutexes */
{
if (mutex == NULL) {
return 0;
}
RMutex rmutex;
rmutex.SetHandle(mutex->handle);
rmutex.Signal();
return 0;
}

View File

@@ -0,0 +1,160 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2023 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 semaphores using the Symbian API. */
#include <e32std.h>
/* !!! FIXME: Should this be SDL_MUTEX_TIMEDOUT? */
#define SDL_MUTEX_TIMEOUT -2
struct SDL_Semaphore
{
TInt handle;
TInt count;
};
struct TInfo
{
TInfo(TInt aTime, TInt aHandle) : iTime(aTime), iHandle(aHandle), iVal(0) {}
TInt iTime;
TInt iHandle;
TInt iVal;
};
extern TInt CreateUnique(TInt (*aFunc)(const TDesC &aName, TAny *, TAny *), TAny *, TAny *);
static TBool RunThread(TAny *aInfo)
{
TInfo *info = STATIC_CAST(TInfo *, aInfo);
User::After(info->iTime);
RSemaphore sema;
sema.SetHandle(info->iHandle);
sema.Signal();
info->iVal = SDL_MUTEX_TIMEOUT;
return 0;
}
static TInt NewThread(const TDesC &aName, TAny *aPtr1, TAny *aPtr2)
{
return ((RThread *)(aPtr1))->Create(aName, RunThread, KDefaultStackSize, NULL, aPtr2);
}
static TInt NewSema(const TDesC &aName, TAny *aPtr1, TAny *aPtr2)
{
TInt value = *((TInt *)aPtr2);
return ((RSemaphore *)aPtr1)->CreateGlobal(aName, value);
}
static void WaitAll(SDL_Semaphore *sem)
{
RSemaphore sema;
sema.SetHandle(sem->handle);
sema.Wait();
while (sem->count < 0) {
sema.Wait();
}
}
SDL_Semaphore *SDL_CreateSemaphore(Uint32 initial_value)
{
RSemaphore s;
TInt status = CreateUnique(NewSema, &s, &initial_value);
if (status != KErrNone) {
SDL_SetError("Couldn't create semaphore");
}
SDL_Semaphore *sem = new /*(ELeave)*/ SDL_Semaphore;
sem->handle = s.Handle();
sem->count = initial_value;
return sem;
}
void SDL_DestroySemaphore(SDL_Semaphore *sem)
{
if (sem != NULL) {
RSemaphore sema;
sema.SetHandle(sem->handle);
sema.Signal(sema.Count());
sema.Close();
delete sem;
sem = NULL;
}
}
int SDL_WaitSemaphoreTimeoutNS(SDL_Semaphore *sem, Sint64 timeoutNS)
{
if (sem == NULL) {
return SDL_InvalidParamError("sem");
}
if (timeoutNS == 0) {
if (sem->count > 0) {
--sem->count;
return 0;
}
return SDL_MUTEX_TIMEOUT;
}
if (timeoutNS == SDL_MUTEX_MAXWAIT) {
WaitAll(sem);
return 0;
}
RThread thread;
TInfo *info = new (ELeave) TInfo((TInt)SDL_NS_TO_MS(timeoutNS), sem->handle);
TInt status = CreateUnique(NewThread, &thread, info);
if (status != KErrNone) {
return status;
}
thread.Resume();
WaitAll(sem);
if (thread.ExitType() == EExitPending) {
thread.Kill(SDL_MUTEX_TIMEOUT);
}
thread.Close();
return info->iVal;
}
Uint32 SDL_GetSemaphoreValue(SDL_Semaphore *sem)
{
if (sem == NULL) {
SDL_InvalidParamError("sem");
return 0;
}
return sem->count;
}
int SDL_PostSemaphore(SDL_Semaphore *sem)
{
if (sem == NULL) {
return SDL_InvalidParamError("sem");
}
sem->count++;
RSemaphore sema;
sema.SetHandle(sem->handle);
sema.Signal();
return 0;
}

View File

@@ -0,0 +1,110 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2023 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_NGAGE
/* N-Gage thread management routines for SDL */
#include <e32std.h>
extern "C" {
#undef NULL
#include "../SDL_systhread.h"
#include "../SDL_thread_c.h"
};
static int object_count;
static int RunThread(TAny *data)
{
SDL_RunThread((SDL_Thread *)data);
return 0;
}
static TInt NewThread(const TDesC &aName, TAny *aPtr1, TAny *aPtr2)
{
return ((RThread *)(aPtr1))->Create(aName, RunThread, KDefaultStackSize, NULL, aPtr2);
}
int CreateUnique(TInt (*aFunc)(const TDesC &aName, TAny *, TAny *), TAny *aPtr1, TAny *aPtr2)
{
TBuf<16> name;
TInt status = KErrNone;
do {
object_count++;
name.Format(_L("SDL_%x"), object_count);
status = aFunc(name, aPtr1, aPtr2);
} while (status == KErrAlreadyExists);
return status;
}
int SDL_SYS_CreateThread(SDL_Thread *thread)
{
RThread rthread;
TInt status = CreateUnique(NewThread, &rthread, thread);
if (status != KErrNone) {
delete (RThread *)thread->handle;
thread->handle = NULL;
return SDL_SetError("Not enough resources to create thread");
}
rthread.Resume();
thread->handle = rthread.Handle();
return 0;
}
void SDL_SYS_SetupThread(const char *name)
{
return;
}
SDL_threadID SDL_ThreadID(void)
{
RThread current;
TThreadId id = current.Id();
return id;
}
int SDL_SYS_SetThreadPriority(SDL_ThreadPriority priority)
{
return 0;
}
void SDL_SYS_WaitThread(SDL_Thread *thread)
{
RThread t;
t.Open(thread->threadid);
if (t.ExitReason() == EExitPending) {
TRequestStatus status;
t.Logon(status);
User::WaitForRequest(status);
}
t.Close();
}
void SDL_SYS_DetachThread(SDL_Thread *thread)
{
return;
}
#endif /* SDL_THREAD_NGAGE */

View File

@@ -0,0 +1,23 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2023 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"
typedef int SYS_ThreadHandle;