Cleanup add brace (#6545)

* Add braces after if conditions

* More add braces after if conditions

* Add braces after while() conditions

* Fix compilation because of macro being modified

* Add braces to for loop

* Add braces after if/goto

* Move comments up

* Remove extra () in the 'return ...;' statements

* More remove extra () in the 'return ...;' statements

* More remove extra () in the 'return ...;' statements after merge

* Fix inconsistent patterns are xxx == NULL vs !xxx

* More "{}" for "if() break;"  and "if() continue;"

* More "{}" after if() short statement

* More "{}" after "if () return;" statement

* More fix inconsistent patterns are xxx == NULL vs !xxx

* Revert some modificaion on SDL_RLEaccel.c

* SDL_RLEaccel: no short statement

* Cleanup 'if' where the bracket is in a new line

* Cleanup 'while' where the bracket is in a new line

* Cleanup 'for' where the bracket is in a new line

* Cleanup 'else' where the bracket is in a new line

src/thread/windows/SDL_syscond_cv.c

@@ -86,7 +86,7 @@ SDL_CreateCond_cv(void)
 
     /* Relies on CONDITION_VARIABLE_INIT == 0. */
     cond = (SDL_cond_cv *) SDL_calloc(1, sizeof(*cond));
-    if (!cond) {
+    if (cond == NULL) {
         SDL_OutOfMemory();
     }
 
@@ -106,7 +106,7 @@ static int
 SDL_CondSignal_cv(SDL_cond * _cond)
 {
     SDL_cond_cv *cond = (SDL_cond_cv *)_cond;
-    if (!cond) {
+    if (cond == NULL) {
         return SDL_InvalidParamError("cond");
     }
 
@@ -119,7 +119,7 @@ static int
 SDL_CondBroadcast_cv(SDL_cond * _cond)
 {
     SDL_cond_cv *cond = (SDL_cond_cv *)_cond;
-    if (!cond) {
+    if (cond == NULL) {
         return SDL_InvalidParamError("cond");
     }
 
@@ -135,10 +135,10 @@ SDL_CondWaitTimeout_cv(SDL_cond * _cond, SDL_mutex * _mutex, Uint32 ms)
     DWORD timeout;
     int ret;
 
-    if (!cond) {
+    if (cond == NULL) {
         return SDL_InvalidParamError("cond");
     }
-    if (!_mutex) {
+    if (_mutex == NULL) {
         return SDL_InvalidParamError("mutex");
     }
 
@@ -232,7 +232,7 @@ SDL_CreateCond(void)
         if (SDL_mutex_impl_active.Type == SDL_MUTEX_INVALID) {
             /* The mutex implementation isn't decided yet, trigger it */
             SDL_mutex *mutex = SDL_CreateMutex();
-            if (!mutex) {
+            if (mutex == NULL) {
                 return NULL;
             }
             SDL_DestroyMutex(mutex);

src/thread/windows/SDL_sysmutex.c

@@ -64,7 +64,7 @@ SDL_CreateMutex_srw(void)
 
     /* Relies on SRWLOCK_INIT == 0. */
     mutex = (SDL_mutex_srw *) SDL_calloc(1, sizeof(*mutex));
-    if (!mutex) {
+    if (mutex == NULL) {
         SDL_OutOfMemory();
     }
 

src/thread/windows/SDL_syssem.c

@@ -118,7 +118,7 @@ SDL_SemTryWait_atom(SDL_sem * _sem)
     SDL_sem_atom *sem = (SDL_sem_atom *)_sem;
     LONG count;
 
-    if (!sem) {
+    if (sem == NULL) {
         return SDL_InvalidParamError("sem");
     }
 
@@ -140,7 +140,7 @@ SDL_SemWait_atom(SDL_sem * _sem)
     SDL_sem_atom *sem = (SDL_sem_atom *)_sem;
     LONG count;
 
-    if (!sem) {
+    if (sem == NULL) {
         return SDL_InvalidParamError("sem");
     }
 
@@ -172,7 +172,7 @@ SDL_SemWaitTimeout_atom(SDL_sem * _sem, Uint32 timeout)
         return SDL_SemWait_atom(_sem);
     }
 
-    if (!sem) {
+    if (sem == NULL) {
         return SDL_InvalidParamError("sem");
     }
 
@@ -215,7 +215,7 @@ SDL_SemValue_atom(SDL_sem * _sem)
 {
     SDL_sem_atom *sem = (SDL_sem_atom *)_sem;
 
-    if (!sem) {
+    if (sem == NULL) {
         SDL_InvalidParamError("sem");
         return 0;
     }
@@ -228,7 +228,7 @@ SDL_SemPost_atom(SDL_sem * _sem)
 {
     SDL_sem_atom *sem = (SDL_sem_atom *)_sem;
 
-    if (!sem) {
+    if (sem == NULL) {
         return SDL_InvalidParamError("sem");
     }
 
@@ -309,7 +309,7 @@ SDL_SemWaitTimeout_kern(SDL_sem * _sem, Uint32 timeout)
     int retval;
     DWORD dwMilliseconds;
 
-    if (!sem) {
+    if (sem == NULL) {
         return SDL_InvalidParamError("sem");
     }
 
@@ -350,7 +350,7 @@ static Uint32
 SDL_SemValue_kern(SDL_sem * _sem)
 {
     SDL_sem_kern *sem = (SDL_sem_kern *)_sem;
-    if (!sem) {
+    if (sem == NULL) {
         SDL_InvalidParamError("sem");
         return 0;
     }
@@ -361,7 +361,7 @@ static int
 SDL_SemPost_kern(SDL_sem * _sem)
 {
     SDL_sem_kern *sem = (SDL_sem_kern *)_sem;
-    if (!sem) {
+    if (sem == NULL) {
         return SDL_InvalidParamError("sem");
     }
     /* Increase the counter in the first place, because
@@ -418,7 +418,7 @@ SDL_CreateSemaphore(Uint32 initial_value)
                 pWaitOnAddress = (pfnWaitOnAddress) GetProcAddress(synch120, "WaitOnAddress");
                 pWakeByAddressSingle = (pfnWakeByAddressSingle) GetProcAddress(synch120, "WakeByAddressSingle");
 
-                if(pWaitOnAddress && pWakeByAddressSingle) {
+                if (pWaitOnAddress && pWakeByAddressSingle) {
                     impl = &SDL_sem_impl_atom;
                 }
             }

src/thread/windows/SDL_systhread.c

@@ -76,7 +76,7 @@ RunThreadViaCreateThread(LPVOID data)
 static unsigned __stdcall
 RunThreadViaBeginThreadEx(void *data)
 {
-  return (unsigned) RunThread(data);
+  return (unsigned)RunThread(data);
 }
 
 #ifdef SDL_PASSED_BEGINTHREAD_ENDTHREAD
@@ -187,7 +187,7 @@ SDL_SYS_SetupThread(const char *name)
 SDL_threadID
 SDL_ThreadID(void)
 {
-    return ((SDL_threadID) GetCurrentThreadId());
+    return (SDL_threadID)GetCurrentThreadId();
 }
 
 int