Android: move static variable isPaused/isPausing to SDL_VideoData structure

- remove unneed check to Android_Window->driverdata
- add window check into context_backup/restore

src/core/android/SDL_android.c

@@ -800,7 +800,7 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeSurfaceCreated)(JNIEnv *env, j
 {
     SDL_LockMutex(Android_ActivityMutex);
 
-    if (Android_Window && Android_Window->driverdata)
+    if (Android_Window)
     {
         SDL_WindowData *data = (SDL_WindowData *) Android_Window->driverdata;
 
@@ -818,7 +818,7 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeSurfaceChanged)(JNIEnv *env, j
 {
     SDL_LockMutex(Android_ActivityMutex);
 
-    if (Android_Window && Android_Window->driverdata)
+    if (Android_Window)
     {
         SDL_VideoDevice *_this = SDL_GetVideoDevice();
         SDL_WindowData  *data  = (SDL_WindowData *) Android_Window->driverdata;
@@ -839,7 +839,7 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeSurfaceDestroyed)(JNIEnv *env,
 {
     SDL_LockMutex(Android_ActivityMutex);
 
-    if (Android_Window && Android_Window->driverdata)
+    if (Android_Window)
     {
         SDL_VideoDevice *_this = SDL_GetVideoDevice();
         SDL_WindowData  *data  = (SDL_WindowData *) Android_Window->driverdata;

src/video/android/SDL_androidevents.c

@@ -59,6 +59,7 @@ SDL_NumberOfEvents(Uint32 type)
 static void
 android_egl_context_restore(SDL_Window *window)
 {
+    if (window) {
         SDL_Event event;
         SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
         if (SDL_GL_MakeCurrent(window, (SDL_GLContext) data->egl_context) < 0) {
@@ -69,16 +70,19 @@ android_egl_context_restore(SDL_Window *window)
             SDL_PushEvent(&event);
         }
     }
+}
 
 static void
 android_egl_context_backup(SDL_Window *window)
 {
+    if (window) {
         /* Keep a copy of the EGL Context so we can try to restore it when we resume */
         SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
         data->egl_context = SDL_GL_GetCurrentContext();
         /* We need to do this so the EGLSurface can be freed */
         SDL_GL_MakeCurrent(window, NULL);
     }
+}
 
 
 /*
@@ -93,10 +97,9 @@ android_egl_context_backup(SDL_Window *window)
 void
 Android_PumpEvents(_THIS)
 {
-    static int isPaused = 0;
+    SDL_VideoData *videodata = (SDL_VideoData *)_this->driverdata;
-    static int isPausing = 0;
 
-    if (isPaused) {
+    if (videodata->isPaused) {
 
         /* Make sure this is the last thing we do before pausing */
         SDL_LockMutex(Android_ActivityMutex);
@@ -108,7 +111,7 @@ Android_PumpEvents(_THIS)
 
         if (SDL_SemWait(Android_ResumeSem) == 0) {
 
-            isPaused = 0;
+            videodata->isPaused = 0;
 
             ANDROIDAUDIO_ResumeDevices();
             openslES_ResumeDevices();
@@ -126,16 +129,16 @@ Android_PumpEvents(_THIS)
             }
         }
     } else {
-        if (isPausing || SDL_SemTryWait(Android_PauseSem) == 0) {
+        if (videodata->isPausing || SDL_SemTryWait(Android_PauseSem) == 0) {
             /* We've been signaled to pause (potentially several times), but before we block ourselves,
              * we need to make sure that the very last event (of the first pause sequence, if several)
              * has reached the app */
             if (SDL_NumberOfEvents(SDL_APP_DIDENTERBACKGROUND) > SDL_SemValue(Android_PauseSem)) {
-                isPausing = 1;
+                videodata->isPausing = 1;
             }
             else {
-                isPausing = 0;
+                videodata->isPausing = 0;
-                isPaused = 1;
+                videodata->isPaused = 1;
             }
         }
     }
@@ -146,12 +149,12 @@ Android_PumpEvents(_THIS)
 void
 Android_PumpEvents(_THIS)
 {
-    static int isPaused = 0;
+    SDL_VideoData *videodata = (SDL_VideoData *)_this->driverdata;
 
-    if (isPaused) {
+    if (videodata->isPaused) {
         if (SDL_SemTryWait(Android_ResumeSem) == 0) {
 
-            isPaused = 0;
+            videodata->isPaused = 0;
 
             ANDROIDAUDIO_ResumeDevices();
             openslES_ResumeDevices();
@@ -178,7 +181,7 @@ Android_PumpEvents(_THIS)
             ANDROIDAUDIO_PauseDevices();
             openslES_PauseDevices();
 
-            isPaused = 1;
+            videodata->isPaused = 1;
         }
     }
 }

src/video/android/SDL_androidvideo.c

@@ -172,8 +172,12 @@ VideoBootStrap Android_bootstrap = {
 int
 Android_VideoInit(_THIS)
 {
+    SDL_VideoData   *videodata = (SDL_VideoData *)_this->driverdata;
     SDL_DisplayMode  mode;
 
+    videodata->isPaused  = SDL_FALSE;
+    videodata->isPausing = SDL_FALSE;
+
     mode.format = Android_ScreenFormat;
     mode.w = Android_DeviceWidth;
     mode.h = Android_DeviceHeight;

src/video/android/SDL_androidvideo.h

@@ -35,6 +35,8 @@ extern void Android_SetScreenResolution(SDL_Window *window, int surfaceWidth, in
 typedef struct SDL_VideoData
 {
     SDL_Rect textRect;
+    int      isPaused;
+    int      isPausing;
 } SDL_VideoData;
 
 extern int Android_SurfaceWidth;