Define SDL_PLATFORM_* macros instead of underscored ones (#8875)

src/thread/windows/SDL_syscond_cv.c

@@ -56,7 +56,7 @@ typedef struct CONDITION_VARIABLE
 } CONDITION_VARIABLE, *PCONDITION_VARIABLE;
 #endif
 
-#ifdef __WINRT__
+#ifdef SDL_PLATFORM_WINRT
 #define pWakeConditionVariable     WakeConditionVariable
 #define pWakeAllConditionVariable  WakeAllConditionVariable
 #define pSleepConditionVariableSRW SleepConditionVariableSRW
@@ -186,7 +186,7 @@ static const SDL_cond_impl_t SDL_cond_impl_cv = {
 };
 
 
-#ifndef __WINRT__
+#ifndef SDL_PLATFORM_WINRT
 /* Generic Condition Variable implementation using SDL_Mutex and SDL_Semaphore */
 static const SDL_cond_impl_t SDL_cond_impl_generic = {
     &SDL_CreateCondition_generic,
@@ -213,7 +213,7 @@ SDL_Condition *SDL_CreateCondition(void)
             SDL_assert(SDL_mutex_impl_active.Type != SDL_MUTEX_INVALID);
         }
 
-#ifdef __WINRT__
+#ifdef SDL_PLATFORM_WINRT
         /* Link statically on this platform */
         impl = &SDL_cond_impl_cv;
 #else

src/thread/windows/SDL_sysmutex.c

@@ -39,7 +39,7 @@ SDL_mutex_impl_t SDL_mutex_impl_active = { 0 };
  * Implementation based on Slim Reader/Writer (SRW) Locks for Win 7 and newer.
  */
 
-#ifdef __WINRT__
+#ifdef SDL_PLATFORM_WINRT
 /* Functions are guaranteed to be available */
 #define pInitializeSRWLock InitializeSRWLock
 #define pReleaseSRWLockExclusive    ReleaseSRWLockExclusive
@@ -143,7 +143,7 @@ static SDL_Mutex *SDL_CreateMutex_cs(void)
     if (mutex) {
         // Initialize
         // On SMP systems, a non-zero spin count generally helps performance
-#ifdef __WINRT__
+#ifdef SDL_PLATFORM_WINRT
         InitializeCriticalSectionEx(&mutex->cs, 2000, 0);
 #else
         InitializeCriticalSectionAndSpinCount(&mutex->cs, 2000);
@@ -197,7 +197,7 @@ SDL_Mutex *SDL_CreateMutex(void)
         const SDL_mutex_impl_t *impl = &SDL_mutex_impl_cs;
 
         if (!SDL_GetHintBoolean(SDL_HINT_WINDOWS_FORCE_MUTEX_CRITICAL_SECTIONS, SDL_FALSE)) {
-#ifdef __WINRT__
+#ifdef SDL_PLATFORM_WINRT
             // Link statically on this platform
             impl = &SDL_mutex_impl_srw;
 #else

src/thread/windows/SDL_sysrwlock_srw.c

@@ -35,7 +35,7 @@ typedef VOID(WINAPI *pfnReleaseSRWLockExclusive)(PSRWLOCK);
 typedef VOID(WINAPI *pfnAcquireSRWLockExclusive)(PSRWLOCK);
 typedef BOOLEAN(WINAPI *pfnTryAcquireSRWLockExclusive)(PSRWLOCK);
 
-#ifdef __WINRT__
+#ifdef SDL_PLATFORM_WINRT
 /* Functions are guaranteed to be available */
 #define pTryAcquireSRWLockExclusive TryAcquireSRWLockExclusive
 #define pInitializeSRWLock InitializeSRWLock
@@ -163,7 +163,7 @@ static const SDL_rwlock_impl_t SDL_rwlock_impl_srw = {
     &SDL_UnlockRWLock_srw
 };
 
-#ifndef __WINRT__
+#ifndef SDL_PLATFORM_WINRT
 
 #include "../generic/SDL_sysrwlock_c.h"
 
@@ -184,7 +184,7 @@ SDL_RWLock *SDL_CreateRWLock(void)
     if (!SDL_rwlock_impl_active.Create) {
         const SDL_rwlock_impl_t *impl;
 
-#ifdef __WINRT__
+#ifdef SDL_PLATFORM_WINRT
         /* Link statically on this platform */
         impl = &SDL_rwlock_impl_srw;
 #else

src/thread/windows/SDL_syssem.c

@@ -61,7 +61,7 @@ static SDL_sem_impl_t SDL_sem_impl_active = { 0 };
 /* https://www.microsoft.com/en-us/download/details.aspx?id=47328 */
 
 #if !SDL_WINAPI_FAMILY_PHONE
-#ifdef __WINRT__
+#ifdef SDL_PLATFORM_WINRT
 /* Functions are guaranteed to be available */
 #define pWaitOnAddress       WaitOnAddress
 #define pWakeByAddressSingle WakeByAddressSingle
@@ -223,7 +223,7 @@ static SDL_Semaphore *SDL_CreateSemaphore_kern(Uint32 initial_value)
     if (sem) {
         /* Create the semaphore, with max value 32K */
 // !!! FIXME: CreateSemaphoreEx is available in Vista and later, so if XP support is dropped, we can lose this #ifdef.
-#ifdef __WINRT__
+#ifdef SDL_PLATFORM_WINRT
         sem->id = CreateSemaphoreEx(NULL, initial_value, 32 * 1024, NULL, 0, SEMAPHORE_ALL_ACCESS);
 #else
         sem->id = CreateSemaphore(NULL, initial_value, 32 * 1024, NULL);
@@ -331,7 +331,7 @@ SDL_Semaphore *SDL_CreateSemaphore(Uint32 initial_value)
 
 #if !SDL_WINAPI_FAMILY_PHONE
         if (!SDL_GetHintBoolean(SDL_HINT_WINDOWS_FORCE_SEMAPHORE_KERNEL, SDL_FALSE)) {
-#ifdef __WINRT__
+#ifdef SDL_PLATFORM_WINRT
             /* Link statically on this platform */
             impl = &SDL_sem_impl_atom;
 #else

src/thread/windows/SDL_systhread.c

@@ -68,7 +68,7 @@ int SDL_SYS_CreateThread(SDL_Thread *thread,
                          pfnSDL_CurrentBeginThread pfnBeginThread,
                          pfnSDL_CurrentEndThread pfnEndThread)
 {
-#elif defined(__CYGWIN__) || defined(__WINRT__)
+#elif defined(SDL_PLATFORM_CYGWIN) || defined(SDL_PLATFORM_WINRT)
 int SDL_SYS_CreateThread(SDL_Thread *thread)
 {
     pfnSDL_CurrentBeginThread pfnBeginThread = NULL;
@@ -124,7 +124,7 @@ void SDL_SYS_SetupThread(const char *name)
 {
     if (name) {
         PVOID exceptionHandlerHandle;
-#ifndef __WINRT__ /* !!! FIXME: There's no LoadLibrary() in WinRT; don't know if SetThreadDescription is available there at all at the moment. */
+#ifndef SDL_PLATFORM_WINRT /* !!! FIXME: There's no LoadLibrary() in WinRT; don't know if SetThreadDescription is available there at all at the moment. */
         static pfnSetThreadDescription pSetThreadDescription = NULL;
         static HMODULE kernel32 = NULL;