*SDL project

11 files changed, 616 insertions, 160 deletions

diff --git a/Source/3rdParty/SDL2/src/core/android/SDL_android.c b/Source/3rdParty/SDL2/src/core/android/SDL_android.c
index c40c676..a56575e 100644
--- a/Source/3rdParty/SDL2/src/core/android/SDL_android.c
+++ b/Source/3rdParty/SDL2/src/core/android/SDL_android.c
@@ -61,6 +61,10 @@
 #define SDL_JAVA_CONTROLLER_INTERFACE(function)         CONCAT1(SDL_JAVA_PREFIX, SDLControllerManager, function)
 #define SDL_JAVA_INTERFACE_INPUT_CONNECTION(function)   CONCAT1(SDL_JAVA_PREFIX, SDLInputConnection, function)
 
+/* Audio encoding definitions */
+#define ENCODING_PCM_8BIT   3
+#define ENCODING_PCM_16BIT  2
+#define ENCODING_PCM_FLOAT  4
 
 /* Java class SDLActivity */
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeSetupJNI)(
@@ -76,7 +80,8 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeDropFile)(
 
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeResize)(
         JNIEnv* env, jclass jcls,
-        jint width, jint height, jint format, jfloat rate);
+        jint surfaceWidth, jint surfaceHeight,
+        jint deviceWidth, jint deviceHeight, jint format, jfloat rate);
 
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeSurfaceChanged)(
         JNIEnv* env, jclass jcls);
@@ -102,7 +107,7 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeTouch)(
 
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeMouse)(
         JNIEnv* env, jclass jcls,
-        jint button, jint action, jfloat x, jfloat y);
+        jint button, jint action, jfloat x, jfloat y, jboolean relative);
 
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeAccel)(
         JNIEnv* env, jclass jcls,
@@ -134,11 +139,19 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeSetenv)(
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeEnvironmentVariablesSet)(
         JNIEnv* env, jclass cls);
 
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeOrientationChanged)(
+        JNIEnv* env, jclass cls,
+        jint orientation);
+
 /* Java class SDLInputConnection */
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE_INPUT_CONNECTION(nativeCommitText)(
         JNIEnv* env, jclass cls,
         jstring text, jint newCursorPosition);
 
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE_INPUT_CONNECTION(nativeGenerateScancodeForUnichar)(
+        JNIEnv* env, jclass cls,
+        jchar chUnicode);
+
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE_INPUT_CONNECTION(nativeSetComposingText)(
         JNIEnv* env, jclass cls,
         jstring text, jint newCursorPosition);
@@ -169,8 +182,8 @@ JNIEXPORT void JNICALL SDL_JAVA_CONTROLLER_INTERFACE(onNativeHat)(
 
 JNIEXPORT jint JNICALL SDL_JAVA_CONTROLLER_INTERFACE(nativeAddJoystick)(
         JNIEnv* env, jclass jcls,
-        jint device_id, jstring device_name, jstring device_desc, jint is_accelerometer,
-        jint nbuttons, jint naxes, jint nhats, jint nballs);
+        jint device_id, jstring device_name, jstring device_desc, jint vendor_id, jint product_id,
+        jboolean is_accelerometer, jint button_mask, jint naxes, jint nhats, jint nballs);
 
 JNIEXPORT jint JNICALL SDL_JAVA_CONTROLLER_INTERFACE(nativeRemoveJoystick)(
         JNIEnv* env, jclass jcls,
@@ -190,6 +203,7 @@ JNIEXPORT jint JNICALL SDL_JAVA_CONTROLLER_INTERFACE(nativeRemoveHaptic)(
 /* #define DEBUG_JNI */
 
 static void Android_JNI_ThreadDestroyed(void*);
+static void checkJNIReady(void);
 
 /*******************************************************************************
  This file links the Java side of Android with libsdl
@@ -212,7 +226,11 @@ static jmethodID midSetActivityTitle;
 static jmethodID midSetWindowStyle;
 static jmethodID midSetOrientation;
 static jmethodID midGetContext;
+static jmethodID midIsTablet;
 static jmethodID midIsAndroidTV;
+static jmethodID midIsChromebook;
+static jmethodID midIsDeXMode;
+static jmethodID midManualBackButton;
 static jmethodID midInputGetInputDeviceIds;
 static jmethodID midSendMessage;
 static jmethodID midShowTextInput;
@@ -223,18 +241,25 @@ static jmethodID midClipboardHasText;
 static jmethodID midOpenAPKExpansionInputStream;
 static jmethodID midGetManifestEnvironmentVariables;
 static jmethodID midGetDisplayDPI;
+static jmethodID midCreateCustomCursor;
+static jmethodID midSetCustomCursor;
+static jmethodID midSetSystemCursor;
+static jmethodID midSupportsRelativeMouse;
+static jmethodID midSetRelativeMouseEnabled;
 
 /* audio manager */
 static jclass mAudioManagerClass;
 
 /* method signatures */
 static jmethodID midAudioOpen;
-static jmethodID midAudioWriteShortBuffer;
 static jmethodID midAudioWriteByteBuffer;
+static jmethodID midAudioWriteShortBuffer;
+static jmethodID midAudioWriteFloatBuffer;
 static jmethodID midAudioClose;
 static jmethodID midCaptureOpen;
-static jmethodID midCaptureReadShortBuffer;
 static jmethodID midCaptureReadByteBuffer;
+static jmethodID midCaptureReadShortBuffer;
+static jmethodID midCaptureReadFloatBuffer;
 static jmethodID midCaptureClose;
 
 /* controller manager */
@@ -244,6 +269,7 @@ static jclass mControllerManagerClass;
 static jmethodID midPollInputDevices;
 static jmethodID midPollHapticDevices;
 static jmethodID midHapticRun;
+static jmethodID midHapticStop;
 
 /* static fields */
 static jfieldID fidSeparateMouseAndTouch;
@@ -309,8 +335,16 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeSetupJNI)(JNIEnv* mEnv, jclass c
                                 "setOrientation","(IIZLjava/lang/String;)V");
     midGetContext = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
                                 "getContext","()Landroid/content/Context;");
+    midIsTablet = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
+                                "isTablet", "()Z");
     midIsAndroidTV = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
                                 "isAndroidTV","()Z");
+    midIsChromebook = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
+                                "isChromebook", "()Z");
+    midIsDeXMode = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
+                                "isDeXMode", "()Z");
+    midManualBackButton = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
+                                "manualBackButton", "()V");
     midInputGetInputDeviceIds = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
                                 "inputGetInputDeviceIds", "(I)[I");
     midSendMessage = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
@@ -332,13 +366,21 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeSetupJNI)(JNIEnv* mEnv, jclass c
                                 "getManifestEnvironmentVariables", "()Z");
 
     midGetDisplayDPI = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass, "getDisplayDPI", "()Landroid/util/DisplayMetrics;");
-    midGetDisplayDPI = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass, "getDisplayDPI", "()Landroid/util/DisplayMetrics;");
+    midCreateCustomCursor = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass, "createCustomCursor", "([IIIII)I");
+    midSetCustomCursor = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass, "setCustomCursor", "(I)Z");
+    midSetSystemCursor = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass, "setSystemCursor", "(I)Z");
+
+    midSupportsRelativeMouse = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass, "supportsRelativeMouse", "()Z");
+    midSetRelativeMouseEnabled = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass, "setRelativeMouseEnabled", "(Z)Z");
+
 
     if (!midGetNativeSurface ||
-       !midSetActivityTitle || !midSetWindowStyle || !midSetOrientation || !midGetContext || !midIsAndroidTV || !midInputGetInputDeviceIds ||
+       !midSetActivityTitle || !midSetWindowStyle || !midSetOrientation || !midGetContext || !midIsTablet || !midIsAndroidTV || !midInputGetInputDeviceIds ||
        !midSendMessage || !midShowTextInput || !midIsScreenKeyboardShown ||
        !midClipboardSetText || !midClipboardGetText || !midClipboardHasText ||
-       !midOpenAPKExpansionInputStream || !midGetManifestEnvironmentVariables|| !midGetDisplayDPI) {
+       !midOpenAPKExpansionInputStream || !midGetManifestEnvironmentVariables || !midGetDisplayDPI ||
+       !midCreateCustomCursor || !midSetCustomCursor || !midSetSystemCursor || !midSupportsRelativeMouse || !midSetRelativeMouseEnabled ||
+       !midIsChromebook || !midIsDeXMode || !midManualBackButton) {
         __android_log_print(ANDROID_LOG_WARN, "SDL", "Missing some Java callbacks, do you have the latest version of SDLActivity.java?");
     }
 
@@ -361,24 +403,28 @@ JNIEXPORT void JNICALL SDL_JAVA_AUDIO_INTERFACE(nativeSetupJNI)(JNIEnv* mEnv, jc
     mAudioManagerClass = (jclass)((*mEnv)->NewGlobalRef(mEnv, cls));
 
     midAudioOpen = (*mEnv)->GetStaticMethodID(mEnv, mAudioManagerClass,
-                                "audioOpen", "(IZZI)I");
-    midAudioWriteShortBuffer = (*mEnv)->GetStaticMethodID(mEnv, mAudioManagerClass,
-                                "audioWriteShortBuffer", "([S)V");
+                                "audioOpen", "(IIII)[I");
     midAudioWriteByteBuffer = (*mEnv)->GetStaticMethodID(mEnv, mAudioManagerClass,
                                 "audioWriteByteBuffer", "([B)V");
+    midAudioWriteShortBuffer = (*mEnv)->GetStaticMethodID(mEnv, mAudioManagerClass,
+                                "audioWriteShortBuffer", "([S)V");
+    midAudioWriteFloatBuffer = (*mEnv)->GetStaticMethodID(mEnv, mAudioManagerClass,
+                                "audioWriteFloatBuffer", "([F)V");
     midAudioClose = (*mEnv)->GetStaticMethodID(mEnv, mAudioManagerClass,
                                 "audioClose", "()V");
     midCaptureOpen = (*mEnv)->GetStaticMethodID(mEnv, mAudioManagerClass,
-                                "captureOpen", "(IZZI)I");
-    midCaptureReadShortBuffer = (*mEnv)->GetStaticMethodID(mEnv, mAudioManagerClass,
-                                "captureReadShortBuffer", "([SZ)I");
+                                "captureOpen", "(IIII)[I");
     midCaptureReadByteBuffer = (*mEnv)->GetStaticMethodID(mEnv, mAudioManagerClass,
                                 "captureReadByteBuffer", "([BZ)I");
+    midCaptureReadShortBuffer = (*mEnv)->GetStaticMethodID(mEnv, mAudioManagerClass,
+                                "captureReadShortBuffer", "([SZ)I");
+    midCaptureReadFloatBuffer = (*mEnv)->GetStaticMethodID(mEnv, mAudioManagerClass,
+                                "captureReadFloatBuffer", "([FZ)I");
     midCaptureClose = (*mEnv)->GetStaticMethodID(mEnv, mAudioManagerClass,
                                 "captureClose", "()V");
 
-    if (!midAudioOpen || !midAudioWriteShortBuffer || !midAudioWriteByteBuffer || !midAudioClose ||
-       !midCaptureOpen || !midCaptureReadShortBuffer || !midCaptureReadByteBuffer || !midCaptureClose) {
+    if (!midAudioOpen || !midAudioWriteByteBuffer || !midAudioWriteShortBuffer || !midAudioWriteFloatBuffer || !midAudioClose ||
+       !midCaptureOpen || !midCaptureReadByteBuffer || !midCaptureReadShortBuffer || !midCaptureReadFloatBuffer || !midCaptureClose) {
         __android_log_print(ANDROID_LOG_WARN, "SDL", "Missing some Java callbacks, do you have the latest version of SDLAudioManager.java?");
     }
 
@@ -399,9 +445,11 @@ JNIEXPORT void JNICALL SDL_JAVA_CONTROLLER_INTERFACE(nativeSetupJNI)(JNIEnv* mEn
     midPollHapticDevices = (*mEnv)->GetStaticMethodID(mEnv, mControllerManagerClass,
                                 "pollHapticDevices", "()V");
     midHapticRun = (*mEnv)->GetStaticMethodID(mEnv, mControllerManagerClass,
-                                "hapticRun", "(II)V");
+                                "hapticRun", "(IFI)V");
+    midHapticStop = (*mEnv)->GetStaticMethodID(mEnv, mControllerManagerClass,
+                                "hapticStop", "(I)V");
 
-    if (!midPollInputDevices || !midPollHapticDevices || !midHapticRun) {
+    if (!midPollInputDevices || !midPollHapticDevices || !midHapticRun || !midHapticStop) {
         __android_log_print(ANDROID_LOG_WARN, "SDL", "Missing some Java callbacks, do you have the latest version of SDLControllerManager.java?");
     }
 
@@ -503,9 +551,18 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeDropFile)(
 /* Resize */
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeResize)(
                                     JNIEnv* env, jclass jcls,
-                                    jint width, jint height, jint format, jfloat rate)
+                                    jint surfaceWidth, jint surfaceHeight,
+                                    jint deviceWidth, jint deviceHeight, jint format, jfloat rate)
 {
-    Android_SetScreenResolution(width, height, format, rate);
+    Android_SetScreenResolution(surfaceWidth, surfaceHeight, deviceWidth, deviceHeight, format, rate);
+}
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeOrientationChanged)(
+                                    JNIEnv *env, jclass jcls,
+                                    jint orientation)
+{
+    SDL_VideoDisplay *display = SDL_GetDisplay(0);
+    SDL_SendDisplayEvent(display, SDL_DISPLAYEVENT_ORIENTATION, orientation);
 }
 
 /* Paddown */
@@ -543,14 +600,15 @@ JNIEXPORT void JNICALL SDL_JAVA_CONTROLLER_INTERFACE(onNativeHat)(
 
 JNIEXPORT jint JNICALL SDL_JAVA_CONTROLLER_INTERFACE(nativeAddJoystick)(
                                     JNIEnv* env, jclass jcls,
-                                    jint device_id, jstring device_name, jstring device_desc, jint is_accelerometer,
-                                    jint nbuttons, jint naxes, jint nhats, jint nballs)
+                                    jint device_id, jstring device_name, jstring device_desc,
+                                    jint vendor_id, jint product_id, jboolean is_accelerometer,
+                                    jint button_mask, jint naxes, jint nhats, jint nballs)
 {
     int retval;
     const char *name = (*env)->GetStringUTFChars(env, device_name, NULL);
     const char *desc = (*env)->GetStringUTFChars(env, device_desc, NULL);
 
-    retval = Android_AddJoystick(device_id, name, desc, (SDL_bool) is_accelerometer, nbuttons, naxes, nhats, nballs);
+    retval = Android_AddJoystick(device_id, name, desc, vendor_id, product_id, is_accelerometer ? SDL_TRUE : SDL_FALSE, button_mask, naxes, nhats, nballs);
 
     (*env)->ReleaseStringUTFChars(env, device_name, name);
     (*env)->ReleaseStringUTFChars(env, device_desc, desc);
@@ -675,9 +733,9 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeTouch)(
 /* Mouse */
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeMouse)(
                                     JNIEnv* env, jclass jcls,
-                                    jint button, jint action, jfloat x, jfloat y)
+                                    jint button, jint action, jfloat x, jfloat y, jboolean relative)
 {
-    Android_OnMouse(button, action, x, y);
+    Android_OnMouse(button, action, x, y, relative);
 }
 
 /* Accelerometer */
@@ -995,17 +1053,19 @@ int Android_JNI_SetupThread(void)
 /*
  * Audio support
  */
-static jboolean audioBuffer16Bit = JNI_FALSE;
+static int audioBufferFormat = 0;
 static jobject audioBuffer = NULL;
 static void* audioBufferPinned = NULL;
-static jboolean captureBuffer16Bit = JNI_FALSE;
+static int captureBufferFormat = 0;
 static jobject captureBuffer = NULL;
 
-int Android_JNI_OpenAudioDevice(int iscapture, int sampleRate, int is16Bit, int channelCount, int desiredBufferFrames)
+int Android_JNI_OpenAudioDevice(int iscapture, SDL_AudioSpec *spec)
 {
-    jboolean audioBufferStereo;
-    int audioBufferFrames;
+    int audioformat;
+    int numBufferFrames;
     jobject jbufobj = NULL;
+    jobject result;
+    int *resultElements;
     jboolean isCopy;
 
     JNIEnv *env = Android_JNI_GetEnv();
@@ -1015,74 +1075,123 @@ int Android_JNI_OpenAudioDevice(int iscapture, int sampleRate, int is16Bit, int
     }
     Android_JNI_SetupThread();
 
-    audioBufferStereo = channelCount > 1;
+    switch (spec->format) {
+    case AUDIO_U8:
+        audioformat = ENCODING_PCM_8BIT;
+        break;
+    case AUDIO_S16:
+        audioformat = ENCODING_PCM_16BIT;
+        break;
+    case AUDIO_F32:
+        audioformat = ENCODING_PCM_FLOAT;
+        break;
+    default:
+        return SDL_SetError("Unsupported audio format: 0x%x", spec->format);
+    }
 
     if (iscapture) {
         __android_log_print(ANDROID_LOG_VERBOSE, "SDL", "SDL audio: opening device for capture");
-        captureBuffer16Bit = is16Bit;
-        if ((*env)->CallStaticIntMethod(env, mAudioManagerClass, midCaptureOpen, sampleRate, audioBuffer16Bit, audioBufferStereo, desiredBufferFrames) != 0) {
-            /* Error during audio initialization */
-            __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: error on AudioRecord initialization!");
-            return 0;
-        }
+        result = (*env)->CallStaticObjectMethod(env, mAudioManagerClass, midCaptureOpen, spec->freq, audioformat, spec->channels, spec->samples);
     } else {
         __android_log_print(ANDROID_LOG_VERBOSE, "SDL", "SDL audio: opening device for output");
-        audioBuffer16Bit = is16Bit;
-        if ((*env)->CallStaticIntMethod(env, mAudioManagerClass, midAudioOpen, sampleRate, audioBuffer16Bit, audioBufferStereo, desiredBufferFrames) != 0) {
-            /* Error during audio initialization */
-            __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: error on AudioTrack initialization!");
-            return 0;
-        }
+        result = (*env)->CallStaticObjectMethod(env, mAudioManagerClass, midAudioOpen, spec->freq, audioformat, spec->channels, spec->samples);
+    }
+    if (result == NULL) {
+        /* Error during audio initialization, error printed from Java */
+        return SDL_SetError("Java-side initialization failed");
     }
 
+    if ((*env)->GetArrayLength(env, (jintArray)result) != 4) {
+        return SDL_SetError("Unexpected results from Java, expected 4, got %d", (*env)->GetArrayLength(env, (jintArray)result));
+    }
+    isCopy = JNI_FALSE;
+    resultElements = (*env)->GetIntArrayElements(env, (jintArray)result, &isCopy);
+    spec->freq = resultElements[0];
+    audioformat = resultElements[1];
+    switch (audioformat) {
+    case ENCODING_PCM_8BIT:
+        spec->format = AUDIO_U8;
+        break;
+    case ENCODING_PCM_16BIT:
+        spec->format = AUDIO_S16;
+        break;
+    case ENCODING_PCM_FLOAT:
+        spec->format = AUDIO_F32;
+        break;
+    default:
+        return SDL_SetError("Unexpected audio format from Java: %d\n", audioformat);
+    }
+    spec->channels = resultElements[2];
+    spec->samples = resultElements[3];
+    (*env)->ReleaseIntArrayElements(env, (jintArray)result, resultElements, JNI_ABORT);
+    (*env)->DeleteLocalRef(env, result);
+
     /* Allocating the audio buffer from the Java side and passing it as the return value for audioInit no longer works on
      * Android >= 4.2 due to a "stale global reference" error. So now we allocate this buffer directly from this side. */
-
-    if (is16Bit) {
-        jshortArray audioBufferLocal = (*env)->NewShortArray(env, desiredBufferFrames * (audioBufferStereo ? 2 : 1));
-        if (audioBufferLocal) {
-            jbufobj = (*env)->NewGlobalRef(env, audioBufferLocal);
-            (*env)->DeleteLocalRef(env, audioBufferLocal);
+    switch (audioformat) {
+    case ENCODING_PCM_8BIT:
+        {
+            jbyteArray audioBufferLocal = (*env)->NewByteArray(env, spec->samples * spec->channels);
+            if (audioBufferLocal) {
+                jbufobj = (*env)->NewGlobalRef(env, audioBufferLocal);
+                (*env)->DeleteLocalRef(env, audioBufferLocal);
+            }
         }
-    }
-    else {
-        jbyteArray audioBufferLocal = (*env)->NewByteArray(env, desiredBufferFrames * (audioBufferStereo ? 2 : 1));
-        if (audioBufferLocal) {
-            jbufobj = (*env)->NewGlobalRef(env, audioBufferLocal);
-            (*env)->DeleteLocalRef(env, audioBufferLocal);
+        break;
+    case ENCODING_PCM_16BIT:
+        {
+            jshortArray audioBufferLocal = (*env)->NewShortArray(env, spec->samples * spec->channels);
+            if (audioBufferLocal) {
+                jbufobj = (*env)->NewGlobalRef(env, audioBufferLocal);
+                (*env)->DeleteLocalRef(env, audioBufferLocal);
+            }
         }
+        break;
+    case ENCODING_PCM_FLOAT:
+        {
+            jfloatArray audioBufferLocal = (*env)->NewFloatArray(env, spec->samples * spec->channels);
+            if (audioBufferLocal) {
+                jbufobj = (*env)->NewGlobalRef(env, audioBufferLocal);
+                (*env)->DeleteLocalRef(env, audioBufferLocal);
+            }
+        }
+        break;
+    default:
+        return SDL_SetError("Unexpected audio format from Java: %d\n", audioformat);
     }
 
     if (jbufobj == NULL) {
-        __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: could not allocate an audio buffer!");
-        return 0;
+        __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: could not allocate an audio buffer");
+        return SDL_OutOfMemory();
     }
 
     if (iscapture) {
+        captureBufferFormat = audioformat;
         captureBuffer = jbufobj;
     } else {
+        audioBufferFormat = audioformat;
         audioBuffer = jbufobj;
     }
+    numBufferFrames = (*env)->GetArrayLength(env, (jarray)jbufobj);
 
-    isCopy = JNI_FALSE;
+    if (!iscapture) {
+        isCopy = JNI_FALSE;
 
-    if (is16Bit) {
-        if (!iscapture) {
-            audioBufferPinned = (*env)->GetShortArrayElements(env, (jshortArray)audioBuffer, &isCopy);
-        }
-        audioBufferFrames = (*env)->GetArrayLength(env, (jshortArray)audioBuffer);
-    } else {
-        if (!iscapture) {
+        switch (audioformat) {
+        case ENCODING_PCM_8BIT:
             audioBufferPinned = (*env)->GetByteArrayElements(env, (jbyteArray)audioBuffer, &isCopy);
+            break;
+        case ENCODING_PCM_16BIT:
+            audioBufferPinned = (*env)->GetShortArrayElements(env, (jshortArray)audioBuffer, &isCopy);
+            break;
+        case ENCODING_PCM_FLOAT:
+            audioBufferPinned = (*env)->GetFloatArrayElements(env, (jfloatArray)audioBuffer, &isCopy);
+            break;
+        default:
+            return SDL_SetError("Unexpected audio format from Java: %d\n", audioformat);
         }
-        audioBufferFrames = (*env)->GetArrayLength(env, (jbyteArray)audioBuffer);
-    }
-
-    if (audioBufferStereo) {
-        audioBufferFrames /= 2;
     }
-
-    return audioBufferFrames;
+    return 0;
 }
 
 int Android_JNI_GetDisplayDPI(float *ddpi, float *xdpi, float *ydpi)
@@ -1126,12 +1235,22 @@ void Android_JNI_WriteAudioBuffer(void)
 {
     JNIEnv *mAudioEnv = Android_JNI_GetEnv();
 
-    if (audioBuffer16Bit) {
-        (*mAudioEnv)->ReleaseShortArrayElements(mAudioEnv, (jshortArray)audioBuffer, (jshort *)audioBufferPinned, JNI_COMMIT);
-        (*mAudioEnv)->CallStaticVoidMethod(mAudioEnv, mAudioManagerClass, midAudioWriteShortBuffer, (jshortArray)audioBuffer);
-    } else {
+    switch (audioBufferFormat) {
+    case ENCODING_PCM_8BIT:
         (*mAudioEnv)->ReleaseByteArrayElements(mAudioEnv, (jbyteArray)audioBuffer, (jbyte *)audioBufferPinned, JNI_COMMIT);
         (*mAudioEnv)->CallStaticVoidMethod(mAudioEnv, mAudioManagerClass, midAudioWriteByteBuffer, (jbyteArray)audioBuffer);
+        break;
+    case ENCODING_PCM_16BIT:
+        (*mAudioEnv)->ReleaseShortArrayElements(mAudioEnv, (jshortArray)audioBuffer, (jshort *)audioBufferPinned, JNI_COMMIT);
+        (*mAudioEnv)->CallStaticVoidMethod(mAudioEnv, mAudioManagerClass, midAudioWriteShortBuffer, (jshortArray)audioBuffer);
+        break;
+    case ENCODING_PCM_FLOAT:
+        (*mAudioEnv)->ReleaseFloatArrayElements(mAudioEnv, (jfloatArray)audioBuffer, (jfloat *)audioBufferPinned, JNI_COMMIT);
+        (*mAudioEnv)->CallStaticVoidMethod(mAudioEnv, mAudioManagerClass, midAudioWriteFloatBuffer, (jfloatArray)audioBuffer);
+        break;
+    default:
+        __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: unhandled audio buffer format");
+        break;
     }
 
     /* JNI_COMMIT means the changes are committed to the VM but the buffer remains pinned */
@@ -1143,44 +1262,84 @@ int Android_JNI_CaptureAudioBuffer(void *buffer, int buflen)
     jboolean isCopy = JNI_FALSE;
     jint br;
 
-    if (captureBuffer16Bit) {
-        SDL_assert((*env)->GetArrayLength(env, (jshortArray)captureBuffer) == (buflen / 2));
+    switch (captureBufferFormat) {
+    case ENCODING_PCM_8BIT:
+        SDL_assert((*env)->GetArrayLength(env, (jshortArray)captureBuffer) == buflen);
+        br = (*env)->CallStaticIntMethod(env, mAudioManagerClass, midCaptureReadByteBuffer, (jbyteArray)captureBuffer, JNI_TRUE);
+        if (br > 0) {
+            jbyte *ptr = (*env)->GetByteArrayElements(env, (jbyteArray)captureBuffer, &isCopy);
+            SDL_memcpy(buffer, ptr, br);
+            (*env)->ReleaseByteArrayElements(env, (jbyteArray)captureBuffer, (jbyte *)ptr, JNI_ABORT);
+        }
+        break;
+    case ENCODING_PCM_16BIT:
+        SDL_assert((*env)->GetArrayLength(env, (jshortArray)captureBuffer) == (buflen / sizeof(Sint16)));
         br = (*env)->CallStaticIntMethod(env, mAudioManagerClass, midCaptureReadShortBuffer, (jshortArray)captureBuffer, JNI_TRUE);
         if (br > 0) {
             jshort *ptr = (*env)->GetShortArrayElements(env, (jshortArray)captureBuffer, &isCopy);
-            br *= 2;
+            br *= sizeof(Sint16);
             SDL_memcpy(buffer, ptr, br);
             (*env)->ReleaseShortArrayElements(env, (jshortArray)captureBuffer, (jshort *)ptr, JNI_ABORT);
         }
-    } else {
-        SDL_assert((*env)->GetArrayLength(env, (jshortArray)captureBuffer) == buflen);
-        br = (*env)->CallStaticIntMethod(env, mAudioManagerClass, midCaptureReadByteBuffer, (jbyteArray)captureBuffer, JNI_TRUE);
+        break;
+    case ENCODING_PCM_FLOAT:
+        SDL_assert((*env)->GetArrayLength(env, (jfloatArray)captureBuffer) == (buflen / sizeof(float)));
+        br = (*env)->CallStaticIntMethod(env, mAudioManagerClass, midCaptureReadFloatBuffer, (jfloatArray)captureBuffer, JNI_TRUE);
         if (br > 0) {
-            jbyte *ptr = (*env)->GetByteArrayElements(env, (jbyteArray)captureBuffer, &isCopy);
+            jfloat *ptr = (*env)->GetFloatArrayElements(env, (jfloatArray)captureBuffer, &isCopy);
+            br *= sizeof(float);
             SDL_memcpy(buffer, ptr, br);
-            (*env)->ReleaseByteArrayElements(env, (jbyteArray)captureBuffer, (jbyte *)ptr, JNI_ABORT);
+            (*env)->ReleaseFloatArrayElements(env, (jfloatArray)captureBuffer, (jfloat *)ptr, JNI_ABORT);
         }
+        break;
+    default:
+        __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: unhandled capture buffer format");
+        break;
     }
-
-    return (int) br;
+    return br;
 }
 
 void Android_JNI_FlushCapturedAudio(void)
 {
     JNIEnv *env = Android_JNI_GetEnv();
 #if 0  /* !!! FIXME: this needs API 23, or it'll do blocking reads and never end. */
-    if (captureBuffer16Bit) {
-        const jint len = (*env)->GetArrayLength(env, (jshortArray)captureBuffer);
-        while ((*env)->CallStaticIntMethod(env, mActivityClass, midCaptureReadShortBuffer, (jshortArray)captureBuffer, JNI_FALSE) == len) { /* spin */ }
-    } else {
-        const jint len = (*env)->GetArrayLength(env, (jbyteArray)captureBuffer);
-        while ((*env)->CallStaticIntMethod(env, mActivityClass, midCaptureReadByteBuffer, (jbyteArray)captureBuffer, JNI_FALSE) == len) { /* spin */ }
+    switch (captureBufferFormat) {
+    case ENCODING_PCM_8BIT:
+        {
+            const jint len = (*env)->GetArrayLength(env, (jbyteArray)captureBuffer);
+            while ((*env)->CallStaticIntMethod(env, mActivityClass, midCaptureReadByteBuffer, (jbyteArray)captureBuffer, JNI_FALSE) == len) { /* spin */ }
+        }
+        break;
+    case ENCODING_PCM_16BIT:
+        {
+            const jint len = (*env)->GetArrayLength(env, (jshortArray)captureBuffer);
+            while ((*env)->CallStaticIntMethod(env, mActivityClass, midCaptureReadShortBuffer, (jshortArray)captureBuffer, JNI_FALSE) == len) { /* spin */ }
+        }
+        break;
+    case ENCODING_PCM_FLOAT:
+        {
+            const jint len = (*env)->GetArrayLength(env, (jfloatArray)captureBuffer);
+            while ((*env)->CallStaticIntMethod(env, mActivityClass, midCaptureReadFloatBuffer, (jfloatArray)captureBuffer, JNI_FALSE) == len) { /* spin */ }
+        }
+        break;
+    default:
+        __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: flushing unhandled capture buffer format");
+        break;
     }
 #else
-    if (captureBuffer16Bit) {
-        (*env)->CallStaticIntMethod(env, mAudioManagerClass, midCaptureReadShortBuffer, (jshortArray)captureBuffer, JNI_FALSE);
-    } else {
+    switch (captureBufferFormat) {
+    case ENCODING_PCM_8BIT:
         (*env)->CallStaticIntMethod(env, mAudioManagerClass, midCaptureReadByteBuffer, (jbyteArray)captureBuffer, JNI_FALSE);
+        break;
+    case ENCODING_PCM_16BIT:
+        (*env)->CallStaticIntMethod(env, mAudioManagerClass, midCaptureReadShortBuffer, (jshortArray)captureBuffer, JNI_FALSE);
+        break;
+    case ENCODING_PCM_FLOAT:
+        (*env)->CallStaticIntMethod(env, mAudioManagerClass, midCaptureReadFloatBuffer, (jfloatArray)captureBuffer, JNI_FALSE);
+        break;
+    default:
+        __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: flushing unhandled capture buffer format");
+        break;
     }
 #endif
 }
@@ -1846,12 +2005,17 @@ void Android_JNI_PollHapticDevices(void)
     (*env)->CallStaticVoidMethod(env, mControllerManagerClass, midPollHapticDevices);
 }
 
-void Android_JNI_HapticRun(int device_id, int length)
+void Android_JNI_HapticRun(int device_id, float intensity, int length)
 {
     JNIEnv *env = Android_JNI_GetEnv();
-    (*env)->CallStaticVoidMethod(env, mControllerManagerClass, midHapticRun, device_id, length);
+    (*env)->CallStaticVoidMethod(env, mControllerManagerClass, midHapticRun, device_id, intensity, length);
 }
 
+void Android_JNI_HapticStop(int device_id)
+{
+    JNIEnv *env = Android_JNI_GetEnv();
+    (*env)->CallStaticVoidMethod(env, mControllerManagerClass, midHapticStop, device_id);
+}
 
 /* See SDLActivity.java for constants. */
 #define COMMAND_SET_KEEP_SCREEN_ON    5
@@ -2006,12 +2170,36 @@ void *SDL_AndroidGetActivity(void)
     return (*env)->CallStaticObjectMethod(env, mActivityClass, midGetContext);
 }
 
+SDL_bool SDL_IsAndroidTablet(void)
+{
+    JNIEnv *env = Android_JNI_GetEnv();
+    return (*env)->CallStaticBooleanMethod(env, mActivityClass, midIsTablet);
+}
+
 SDL_bool SDL_IsAndroidTV(void)
 {
     JNIEnv *env = Android_JNI_GetEnv();
     return (*env)->CallStaticBooleanMethod(env, mActivityClass, midIsAndroidTV);
 }
 
+SDL_bool SDL_IsChromebook(void)
+{
+    JNIEnv *env = Android_JNI_GetEnv();
+    return (*env)->CallStaticBooleanMethod(env, mActivityClass, midIsChromebook);
+}
+
+SDL_bool SDL_IsDeXMode(void)
+{
+    JNIEnv *env = Android_JNI_GetEnv();
+    return (*env)->CallStaticBooleanMethod(env, mActivityClass, midIsDeXMode);
+}
+
+void SDL_AndroidBackButton(void)
+{
+    JNIEnv *env = Android_JNI_GetEnv();
+    return (*env)->CallStaticVoidMethod(env, mActivityClass, midManualBackButton);
+}
+
 const char * SDL_AndroidGetInternalStoragePath(void)
 {
     static char *s_AndroidInternalFilesPath = NULL;
@@ -2166,6 +2354,48 @@ void Android_JNI_GetManifestEnvironmentVariables(void)
     }
 }
 
+int Android_JNI_CreateCustomCursor(SDL_Surface *surface, int hot_x, int hot_y)
+{
+    JNIEnv *mEnv = Android_JNI_GetEnv();
+    int custom_cursor = 0;
+    jintArray pixels;
+    pixels = (*mEnv)->NewIntArray(mEnv, surface->w * surface->h);
+    if (pixels) {
+        (*mEnv)->SetIntArrayRegion(mEnv, pixels, 0, surface->w * surface->h, (int *)surface->pixels);
+        custom_cursor = (*mEnv)->CallStaticIntMethod(mEnv, mActivityClass, midCreateCustomCursor, pixels, surface->w, surface->h, hot_x, hot_y);
+        (*mEnv)->DeleteLocalRef(mEnv, pixels);
+    } else {
+        SDL_OutOfMemory();
+    }
+    return custom_cursor;
+}
+
+
+SDL_bool Android_JNI_SetCustomCursor(int cursorID)
+{
+    JNIEnv *mEnv = Android_JNI_GetEnv();
+    return (*mEnv)->CallStaticBooleanMethod(mEnv, mActivityClass, midSetCustomCursor, cursorID);
+}
+
+SDL_bool Android_JNI_SetSystemCursor(int cursorID)
+{
+    JNIEnv *mEnv = Android_JNI_GetEnv();
+    return (*mEnv)->CallStaticBooleanMethod(mEnv, mActivityClass, midSetSystemCursor, cursorID);
+}
+
+SDL_bool Android_JNI_SupportsRelativeMouse()
+{
+    JNIEnv *mEnv = Android_JNI_GetEnv();
+    return (*mEnv)->CallStaticBooleanMethod(mEnv, mActivityClass, midSupportsRelativeMouse);
+}
+
+SDL_bool Android_JNI_SetRelativeMouseEnabled(SDL_bool enabled)
+{
+    JNIEnv *mEnv = Android_JNI_GetEnv();
+    return (*mEnv)->CallStaticBooleanMethod(mEnv, mActivityClass, midSetRelativeMouseEnabled, (enabled == 1));
+}
+
+
 #endif /* __ANDROID__ */
 
 /* vi: set ts=4 sw=4 expandtab: */
diff --git a/Source/3rdParty/SDL2/src/core/android/SDL_android.h b/Source/3rdParty/SDL2/src/core/android/SDL_android.h
index c800dc6..b2ff32e 100644
--- a/Source/3rdParty/SDL2/src/core/android/SDL_android.h
+++ b/Source/3rdParty/SDL2/src/core/android/SDL_android.h
@@ -19,6 +19,7 @@
   3. This notice may not be removed or altered from any source distribution.
 */
 #include "../../SDL_internal.h"
+#include "SDL_system.h"
 
 /* Set up for C function definitions, even when using C++ */
 #ifdef __cplusplus
@@ -30,6 +31,7 @@ extern "C" {
 #include <EGL/eglplatform.h>
 #include <android/native_window_jni.h>
 
+#include "SDL_audio.h"
 #include "SDL_rect.h"
 
 /* Interface from the SDL library into the Android Java activity */
@@ -46,13 +48,17 @@ extern ANativeWindow* Android_JNI_GetNativeWindow(void);
 extern int Android_JNI_GetDisplayDPI(float *ddpi, float *xdpi, float *ydpi);
 
 /* Audio support */
-extern int Android_JNI_OpenAudioDevice(int iscapture, int sampleRate, int is16Bit, int channelCount, int desiredBufferFrames);
+extern int Android_JNI_OpenAudioDevice(int iscapture, SDL_AudioSpec *spec);
 extern void* Android_JNI_GetAudioBuffer(void);
 extern void Android_JNI_WriteAudioBuffer(void);
 extern int Android_JNI_CaptureAudioBuffer(void *buffer, int buflen);
 extern void Android_JNI_FlushCapturedAudio(void);
 extern void Android_JNI_CloseAudioDevice(const int iscapture);
 
+/* Detecting device type */
+extern SDL_bool Android_IsDeXMode();
+extern SDL_bool Android_IsChromebook();
+
 #include "SDL_rwops.h"
 
 int Android_JNI_FileOpen(SDL_RWops* ctx, const char* fileName, const char* mode);
@@ -78,14 +84,16 @@ void Android_JNI_PollInputDevices(void);
 
 /* Haptic support */
 void Android_JNI_PollHapticDevices(void);
-void Android_JNI_HapticRun(int device_id, int length);
+void Android_JNI_HapticRun(int device_id, float intensity, int length);
+void Android_JNI_HapticStop(int device_id);
 
 /* Video */
 void Android_JNI_SuspendScreenSaver(SDL_bool suspend);
 
 /* Touch support */
-int Android_JNI_GetTouchDeviceIds(int **ids);
+int Android_JNI_InitTouch(void);
 void Android_JNI_SetSeparateMouseAndTouch(SDL_bool new_value);
+int Android_JNI_GetTouchDeviceIds(int **ids);
 
 /* Threads */
 #include <jni.h>
@@ -102,6 +110,21 @@ JNIEXPORT void JNICALL SDL_Android_Init(JNIEnv* mEnv, jclass cls);
 #include "SDL_messagebox.h"
 int Android_JNI_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid);
 
+/* Cursor support */
+int Android_JNI_CreateCustomCursor(SDL_Surface *surface, int hot_x, int hot_y);
+SDL_bool Android_JNI_SetCustomCursor(int cursorID);
+SDL_bool Android_JNI_SetSystemCursor(int cursorID);
+
+/* Relative mouse support */
+SDL_bool Android_JNI_SupportsRelativeMouse(void);
+SDL_bool Android_JNI_SetRelativeMouseEnabled(SDL_bool enabled);
+
+
+SDL_bool SDL_IsAndroidTablet(void);
+SDL_bool SDL_IsAndroidTV(void);
+SDL_bool SDL_IsChromebook(void);
+SDL_bool SDL_IsDeXMode(void);
+
 /* Ends C function definitions when using C++ */
 #ifdef __cplusplus
 /* *INDENT-OFF* */
diff --git a/Source/3rdParty/SDL2/src/core/linux/SDL_dbus.c b/Source/3rdParty/SDL2/src/core/linux/SDL_dbus.c
index ff4f0fe..e0d9972 100644
--- a/Source/3rdParty/SDL2/src/core/linux/SDL_dbus.c
+++ b/Source/3rdParty/SDL2/src/core/linux/SDL_dbus.c
@@ -173,17 +173,29 @@ SDL_DBus_CallMethodInternal(DBusConnection *conn, const char *node, const char *
     if (conn) {
         DBusMessage *msg = dbus.message_new_method_call(node, path, interface, method);
         if (msg) {
-            int firstarg = va_arg(ap, int);
+            int firstarg;
+            va_list ap_reply;
+            va_copy(ap_reply, ap);  /* copy the arg list so we don't compete with D-Bus for it */
+            firstarg = va_arg(ap, int);
             if ((firstarg == DBUS_TYPE_INVALID) || dbus.message_append_args_valist(msg, firstarg, ap)) {
                 DBusMessage *reply = dbus.connection_send_with_reply_and_block(conn, msg, 300, NULL);
                 if (reply) {
-                    firstarg = va_arg(ap, int);
-                    if ((firstarg == DBUS_TYPE_INVALID) || dbus.message_get_args_valist(reply, NULL, firstarg, ap)) {
+                    /* skip any input args, get to output args. */
+                    while ((firstarg = va_arg(ap_reply, int)) != DBUS_TYPE_INVALID) {
+                        /* we assume D-Bus already validated all this. */
+                        { void *dumpptr = va_arg(ap_reply, void*); (void) dumpptr; }
+                        if (firstarg == DBUS_TYPE_ARRAY) {
+                            { const int dumpint = va_arg(ap_reply, int); (void) dumpint; }
+                        }
+                    }
+                    firstarg = va_arg(ap_reply, int);
+                    if ((firstarg == DBUS_TYPE_INVALID) || dbus.message_get_args_valist(reply, NULL, firstarg, ap_reply)) {
                         retval = SDL_TRUE;
                     }
                     dbus.message_unref(reply);
                 }
             }
+            va_end(ap_reply);
             dbus.message_unref(msg);
         }
     }
diff --git a/Source/3rdParty/SDL2/src/core/linux/SDL_dbus.h b/Source/3rdParty/SDL2/src/core/linux/SDL_dbus.h
index 062543d..aa787f2 100644
--- a/Source/3rdParty/SDL2/src/core/linux/SDL_dbus.h
+++ b/Source/3rdParty/SDL2/src/core/linux/SDL_dbus.h
@@ -39,9 +39,8 @@ typedef struct SDL_DBusContext {
     void (*bus_add_match)(DBusConnection *, const char *, DBusError *);
     DBusConnection * (*connection_open_private)(const char *, DBusError *);
     void (*connection_set_exit_on_disconnect)(DBusConnection *, dbus_bool_t);
-    dbus_bool_t (*connection_get_is_connected)(DBusConnection *); 	
-    dbus_bool_t (*connection_add_filter)(DBusConnection *, DBusHandleMessageFunction,
-	    void *, DBusFreeFunction);
+    dbus_bool_t (*connection_get_is_connected)(DBusConnection *);
+    dbus_bool_t (*connection_add_filter)(DBusConnection *, DBusHandleMessageFunction, void *, DBusFreeFunction);
     dbus_bool_t (*connection_try_register_object_path)(DBusConnection *, const char *,
         const DBusObjectPathVTable *, void *, DBusError *);
     dbus_bool_t (*connection_send)(DBusConnection *, DBusMessage *, dbus_uint32_t *);
@@ -51,7 +50,7 @@ typedef struct SDL_DBusContext {
     void (*connection_flush)(DBusConnection *);
     dbus_bool_t (*connection_read_write)(DBusConnection *, int);
     DBusDispatchStatus (*connection_dispatch)(DBusConnection *);
-    dbus_bool_t (*message_is_signal)(DBusMessage *, const char *, const char *); 	
+    dbus_bool_t (*message_is_signal)(DBusMessage *, const char *, const char *); 
     DBusMessage *(*message_new_method_call)(const char *, const char *, const char *, const char *);
     dbus_bool_t (*message_append_args)(DBusMessage *, int, ...);
     dbus_bool_t (*message_append_args_valist)(DBusMessage *, int, va_list);
@@ -61,7 +60,7 @@ typedef struct SDL_DBusContext {
     dbus_bool_t (*message_iter_next)(DBusMessageIter *);
     void (*message_iter_get_basic)(DBusMessageIter *, void *);
     int (*message_iter_get_arg_type)(DBusMessageIter *);
-    void (*message_iter_recurse)(DBusMessageIter *, DBusMessageIter *); 	 	
+    void (*message_iter_recurse)(DBusMessageIter *, DBusMessageIter *); 
     void (*message_unref)(DBusMessage *);
     void (*error_init)(DBusError *);
     dbus_bool_t (*error_is_set)(const DBusError *);
diff --git a/Source/3rdParty/SDL2/src/core/linux/SDL_evdev.c b/Source/3rdParty/SDL2/src/core/linux/SDL_evdev.c
index a506926..5443c21 100644
--- a/Source/3rdParty/SDL2/src/core/linux/SDL_evdev.c
+++ b/Source/3rdParty/SDL2/src/core/linux/SDL_evdev.c
@@ -101,6 +101,7 @@ typedef struct SDL_EVDEV_PrivateData
     SDL_EVDEV_keyboard_state *kbd;
 } SDL_EVDEV_PrivateData;
 
+#undef _THIS
 #define _THIS SDL_EVDEV_PrivateData *_this
 static _THIS = NULL;
 
diff --git a/Source/3rdParty/SDL2/src/core/linux/SDL_evdev_kbd.c b/Source/3rdParty/SDL2/src/core/linux/SDL_evdev_kbd.c
index 250e644..00a3a54 100644
--- a/Source/3rdParty/SDL2/src/core/linux/SDL_evdev_kbd.c
+++ b/Source/3rdParty/SDL2/src/core/linux/SDL_evdev_kbd.c
@@ -21,6 +21,7 @@
 #include "../../SDL_internal.h"
 
 #include "SDL_evdev_kbd.h"
+#include "SDL_hints.h"
 
 #ifdef SDL_INPUT_LINUXKD
 
@@ -34,6 +35,8 @@
 #include <linux/vt.h>
 #include <linux/tiocl.h> /* for TIOCL_GETSHIFTSTATE */
 
+#include <signal.h>
+
 #include "../../events/SDL_events_c.h"
 #include "SDL_evdev_kbd_default_accents.h"
 #include "SDL_evdev_kbd_default_keymap.h"
@@ -191,6 +194,151 @@ static int SDL_EVDEV_kbd_load_keymaps(SDL_EVDEV_keyboard_state *kbd)
     return 0;
 }
 
+static SDL_EVDEV_keyboard_state * kbd_cleanup_state = NULL;
+static int kbd_cleanup_sigactions_installed = 0;
+static int kbd_cleanup_atexit_installed = 0;
+
+static struct sigaction old_sigaction[NSIG];
+
+static int fatal_signals[] =
+{
+    /* Handlers for SIGTERM and SIGINT are installed in SDL_QuitInit. */
+    SIGHUP,  SIGQUIT, SIGILL,  SIGABRT,
+    SIGFPE,  SIGSEGV, SIGPIPE, SIGBUS,
+    SIGSYS
+};
+
+static void kbd_cleanup(void)
+{
+    SDL_EVDEV_keyboard_state* kbd = kbd_cleanup_state;
+    if (kbd == NULL) {
+        return;
+    }
+    kbd_cleanup_state = NULL;
+
+    fprintf(stderr, "(SDL restoring keyboard) ");
+    ioctl(kbd->console_fd, KDSKBMODE, kbd->old_kbd_mode);
+}
+
+void
+SDL_EVDEV_kbd_reraise_signal(int sig)
+{
+    raise(sig);
+}
+
+siginfo_t* SDL_EVDEV_kdb_cleanup_siginfo = NULL;
+void*      SDL_EVDEV_kdb_cleanup_ucontext = NULL;
+
+static void kbd_cleanup_signal_action(int signum, siginfo_t* info, void* ucontext)
+{
+    struct sigaction* old_action_p = &(old_sigaction[signum]);
+    sigset_t sigset;
+
+    /* Restore original signal handler before going any further. */
+    sigaction(signum, old_action_p, NULL);
+
+    /* Unmask current signal. */
+    sigemptyset(&sigset);
+    sigaddset(&sigset, signum);
+    sigprocmask(SIG_UNBLOCK, &sigset, NULL);
+
+    /* Save original signal info and context for archeologists. */
+    SDL_EVDEV_kdb_cleanup_siginfo = info;
+    SDL_EVDEV_kdb_cleanup_ucontext = ucontext;
+
+    /* Restore keyboard. */
+    kbd_cleanup();
+
+    /* Reraise signal. */
+    SDL_EVDEV_kbd_reraise_signal(signum);
+}
+
+static void kbd_unregister_emerg_cleanup()
+{
+    int tabidx, signum;
+
+    kbd_cleanup_state = NULL;
+
+    if (!kbd_cleanup_sigactions_installed) {
+        return;
+    }
+    kbd_cleanup_sigactions_installed = 0;
+
+    for (tabidx = 0; tabidx < sizeof(fatal_signals) / sizeof(fatal_signals[0]); ++tabidx) {
+        struct sigaction* old_action_p;
+        struct sigaction cur_action;
+        signum = fatal_signals[tabidx];
+        old_action_p = &(old_sigaction[signum]);
+
+        /* Examine current signal action */
+        if (sigaction(signum, NULL, &cur_action))
+            continue;
+
+        /* Check if action installed and not modifed */
+        if (!(cur_action.sa_flags & SA_SIGINFO)
+                || cur_action.sa_sigaction != &kbd_cleanup_signal_action)
+            continue;
+
+        /* Restore original action */
+        sigaction(signum, old_action_p, NULL);
+    }
+}
+
+static void kbd_cleanup_atexit(void)
+{
+    /* Restore keyboard. */
+    kbd_cleanup();
+
+    /* Try to restore signal handlers in case shared library is being unloaded */
+    kbd_unregister_emerg_cleanup();
+}
+
+static void kbd_register_emerg_cleanup(SDL_EVDEV_keyboard_state * kbd)
+{
+    int tabidx, signum;
+
+    if (kbd_cleanup_state != NULL) {
+        return;
+    }
+    kbd_cleanup_state = kbd;
+
+    if (!kbd_cleanup_atexit_installed) {
+        /* Since glibc 2.2.3, atexit() (and on_exit(3)) can be used within a shared library to establish
+         * functions that are called when the shared library is unloaded.
+         * -- man atexit(3)
+         */
+        atexit(kbd_cleanup_atexit);
+        kbd_cleanup_atexit_installed = 1;
+    }
+
+    if (kbd_cleanup_sigactions_installed) {
+        return;
+    }
+    kbd_cleanup_sigactions_installed = 1;
+
+    for (tabidx = 0; tabidx < sizeof(fatal_signals) / sizeof(fatal_signals[0]); ++tabidx) {
+        struct sigaction* old_action_p;
+        struct sigaction new_action;
+        signum = fatal_signals[tabidx];   
+        old_action_p = &(old_sigaction[signum]);
+        if (sigaction(signum, NULL, old_action_p))
+            continue;
+
+        /* Skip SIGHUP and SIGPIPE if handler is already installed
+         * - assume the handler will do the cleanup
+         */
+        if ((signum == SIGHUP || signum == SIGPIPE)
+                && (old_action_p->sa_handler != SIG_DFL 
+                    || (void (*)(int))old_action_p->sa_sigaction != SIG_DFL))
+            continue;
+
+        new_action = *old_action_p;
+        new_action.sa_flags |= SA_SIGINFO;
+        new_action.sa_sigaction = &kbd_cleanup_signal_action;
+        sigaction(signum, &new_action, NULL);
+    }
+}
+
 SDL_EVDEV_keyboard_state *
 SDL_EVDEV_kbd_init(void)
 {
@@ -238,10 +386,20 @@ SDL_EVDEV_kbd_init(void)
             kbd->key_maps = default_key_maps;
         }
 
-        /* Mute the keyboard so keystrokes only generate evdev events
-         * and do not leak through to the console
-         */
-        ioctl(kbd->console_fd, KDSKBMODE, K_OFF);
+        /* Allow inhibiting keyboard mute with env. variable for debugging etc. */
+        if (getenv("SDL_INPUT_LINUX_KEEP_KBD") == NULL) {
+            /* Mute the keyboard so keystrokes only generate evdev events
+             * and do not leak through to the console
+             */
+            ioctl(kbd->console_fd, KDSKBMODE, K_OFF);
+
+            /* Make sure to restore keyboard if application fails to call
+             * SDL_Quit before exit or fatal signal is raised.
+             */
+            if (!SDL_GetHintBoolean(SDL_HINT_NO_SIGNAL_HANDLERS, SDL_FALSE)) {
+                kbd_register_emerg_cleanup(kbd);
+            }
+        }
     }
 
 #ifdef DUMP_ACCENTS
@@ -260,6 +418,8 @@ SDL_EVDEV_kbd_quit(SDL_EVDEV_keyboard_state *kbd)
         return;
     }
 
+    kbd_unregister_emerg_cleanup();
+
     if (kbd->console_fd >= 0) {
         /* Restore the original keyboard mode */
         ioctl(kbd->console_fd, KDSKBMODE, kbd->old_kbd_mode);
@@ -609,7 +769,10 @@ SDL_EVDEV_kbd_keycode(SDL_EVDEV_keyboard_state *kbd, unsigned int keycode, int d
     shift_final = (kbd->shift_state | kbd->slockstate) ^ kbd->lockstate;
     key_map = kbd->key_maps[shift_final];
     if (!key_map) {
+        /* Unsupported shift state (e.g. ctrl = 4, alt = 8), just reset to the default state */
+        kbd->shift_state = 0;
         kbd->slockstate = 0;
+        kbd->lockstate = 0;
         return;
     }
 
diff --git a/Source/3rdParty/SDL2/src/core/linux/SDL_evdev_kbd.h b/Source/3rdParty/SDL2/src/core/linux/SDL_evdev_kbd.h
index 831ba3a..5e51cdd 100644
--- a/Source/3rdParty/SDL2/src/core/linux/SDL_evdev_kbd.h
+++ b/Source/3rdParty/SDL2/src/core/linux/SDL_evdev_kbd.h
@@ -19,6 +19,9 @@
   3. This notice may not be removed or altered from any source distribution.
 */
 
+#ifndef SDL_evdev_kbd_h_
+#define SDL_evdev_kbd_h_
+
 struct SDL_EVDEV_keyboard_state;
 typedef struct SDL_EVDEV_keyboard_state SDL_EVDEV_keyboard_state;
 
@@ -26,4 +29,6 @@ extern SDL_EVDEV_keyboard_state *SDL_EVDEV_kbd_init(void);
 extern void SDL_EVDEV_kbd_keycode(SDL_EVDEV_keyboard_state *state, unsigned int keycode, int down);
 extern void SDL_EVDEV_kbd_quit(SDL_EVDEV_keyboard_state *state);
 
+#endif /* SDL_evdev_kbd_h_ */
+
 /* vi: set ts=4 sw=4 expandtab: */
diff --git a/Source/3rdParty/SDL2/src/core/linux/SDL_udev.c b/Source/3rdParty/SDL2/src/core/linux/SDL_udev.c
index dfbeb79..751e2ca 100644
--- a/Source/3rdParty/SDL2/src/core/linux/SDL_udev.c
+++ b/Source/3rdParty/SDL2/src/core/linux/SDL_udev.c
@@ -63,7 +63,7 @@ SDL_UDEV_load_syms(void)
 {
     /* cast funcs to char* first, to please GCC's strict aliasing rules. */
     #define SDL_UDEV_SYM(x) \
-        if (!SDL_UDEV_load_sym(#x, (void **) (char *) & _this->x)) return -1
+        if (!SDL_UDEV_load_sym(#x, (void **) (char *) & _this->syms.x)) return -1
 
     SDL_UDEV_SYM(udev_device_get_action);
     SDL_UDEV_SYM(udev_device_get_devnode);
@@ -100,7 +100,7 @@ static SDL_bool
 SDL_UDEV_hotplug_update_available(void)
 {
     if (_this->udev_mon != NULL) {
-        const int fd = _this->udev_monitor_get_fd(_this->udev_mon);
+        const int fd = _this->syms.udev_monitor_get_fd(_this->udev_mon);
         if (SDL_IOReady(fd, SDL_FALSE, 0)) {
             return SDL_TRUE;
         }
@@ -130,21 +130,21 @@ SDL_UDEV_Init(void)
          * Listen for input devices (mouse, keyboard, joystick, etc) and sound devices
          */
         
-        _this->udev = _this->udev_new();
+        _this->udev = _this->syms.udev_new();
         if (_this->udev == NULL) {
             SDL_UDEV_Quit();
             return SDL_SetError("udev_new() failed");
         }
 
-        _this->udev_mon = _this->udev_monitor_new_from_netlink(_this->udev, "udev");
+        _this->udev_mon = _this->syms.udev_monitor_new_from_netlink(_this->udev, "udev");
         if (_this->udev_mon == NULL) {
             SDL_UDEV_Quit();
             return SDL_SetError("udev_monitor_new_from_netlink() failed");
         }
         
-        _this->udev_monitor_filter_add_match_subsystem_devtype(_this->udev_mon, "input", NULL);
-        _this->udev_monitor_filter_add_match_subsystem_devtype(_this->udev_mon, "sound", NULL);
-        _this->udev_monitor_enable_receiving(_this->udev_mon);
+        _this->syms.udev_monitor_filter_add_match_subsystem_devtype(_this->udev_mon, "input", NULL);
+        _this->syms.udev_monitor_filter_add_match_subsystem_devtype(_this->udev_mon, "sound", NULL);
+        _this->syms.udev_monitor_enable_receiving(_this->udev_mon);
         
         /* Do an initial scan of existing devices */
         SDL_UDEV_Scan();
@@ -170,11 +170,11 @@ SDL_UDEV_Quit(void)
     if (_this->ref_count < 1) {
         
         if (_this->udev_mon != NULL) {
-            _this->udev_monitor_unref(_this->udev_mon);
+            _this->syms.udev_monitor_unref(_this->udev_mon);
             _this->udev_mon = NULL;
         }
         if (_this->udev != NULL) {
-            _this->udev_unref(_this->udev);
+            _this->syms.udev_unref(_this->udev);
             _this->udev = NULL;
         }
         
@@ -202,28 +202,28 @@ SDL_UDEV_Scan(void)
         return;
     }
    
-    enumerate = _this->udev_enumerate_new(_this->udev);
+    enumerate = _this->syms.udev_enumerate_new(_this->udev);
     if (enumerate == NULL) {
         SDL_UDEV_Quit();
         SDL_SetError("udev_enumerate_new() failed");
         return;
     }
     
-    _this->udev_enumerate_add_match_subsystem(enumerate, "input");
-    _this->udev_enumerate_add_match_subsystem(enumerate, "sound");
+    _this->syms.udev_enumerate_add_match_subsystem(enumerate, "input");
+    _this->syms.udev_enumerate_add_match_subsystem(enumerate, "sound");
     
-    _this->udev_enumerate_scan_devices(enumerate);
-    devs = _this->udev_enumerate_get_list_entry(enumerate);
-    for (item = devs; item; item = _this->udev_list_entry_get_next(item)) {
-        const char *path = _this->udev_list_entry_get_name(item);
-        struct udev_device *dev = _this->udev_device_new_from_syspath(_this->udev, path);
+    _this->syms.udev_enumerate_scan_devices(enumerate);
+    devs = _this->syms.udev_enumerate_get_list_entry(enumerate);
+    for (item = devs; item; item = _this->syms.udev_list_entry_get_next(item)) {
+        const char *path = _this->syms.udev_list_entry_get_name(item);
+        struct udev_device *dev = _this->syms.udev_device_new_from_syspath(_this->udev, path);
         if (dev != NULL) {
             device_event(SDL_UDEV_DEVICEADDED, dev);
-            _this->udev_device_unref(dev);
+            _this->syms.udev_device_unref(dev);
         }
     }
 
-    _this->udev_enumerate_unref(enumerate);
+    _this->syms.udev_enumerate_unref(enumerate);
 }
 
 
@@ -305,7 +305,7 @@ static void get_caps(struct udev_device *dev, struct udev_device *pdev, const ch
     unsigned long v;
 
     SDL_memset(bitmask, 0, bitmask_len*sizeof(*bitmask));
-    value = _this->udev_device_get_sysattr_value(pdev, attr);
+    value = _this->syms.udev_device_get_sysattr_value(pdev, attr);
     if (!value) {
         return;
     }
@@ -340,8 +340,8 @@ guess_device_class(struct udev_device *dev)
     /* walk up the parental chain until we find the real input device; the
      * argument is very likely a subdevice of this, like eventN */
     pdev = dev;
-    while (pdev && !_this->udev_device_get_sysattr_value(pdev, "capabilities/ev")) {
-        pdev = _this->udev_device_get_parent_with_subsystem_devtype(pdev, "input", NULL);
+    while (pdev && !_this->syms.udev_device_get_sysattr_value(pdev, "capabilities/ev")) {
+        pdev = _this->syms.udev_device_get_parent_with_subsystem_devtype(pdev, "input", NULL);
     }
     if (!pdev) {
         return 0;
@@ -405,28 +405,28 @@ device_event(SDL_UDEV_deviceevent type, struct udev_device *dev)
     const char *path;
     SDL_UDEV_CallbackList *item;
     
-    path = _this->udev_device_get_devnode(dev);
+    path = _this->syms.udev_device_get_devnode(dev);
     if (path == NULL) {
         return;
     }
     
-    subsystem = _this->udev_device_get_subsystem(dev);
+    subsystem = _this->syms.udev_device_get_subsystem(dev);
     if (SDL_strcmp(subsystem, "sound") == 0) {
         devclass = SDL_UDEV_DEVICE_SOUND;
     } else if (SDL_strcmp(subsystem, "input") == 0) {
         /* udev rules reference: http://cgit.freedesktop.org/systemd/systemd/tree/src/udev/udev-builtin-input_id.c */
         
-        val = _this->udev_device_get_property_value(dev, "ID_INPUT_JOYSTICK");
+        val = _this->syms.udev_device_get_property_value(dev, "ID_INPUT_JOYSTICK");
         if (val != NULL && SDL_strcmp(val, "1") == 0 ) {
             devclass |= SDL_UDEV_DEVICE_JOYSTICK;
         }
         
-        val = _this->udev_device_get_property_value(dev, "ID_INPUT_MOUSE");
+        val = _this->syms.udev_device_get_property_value(dev, "ID_INPUT_MOUSE");
         if (val != NULL && SDL_strcmp(val, "1") == 0 ) {
             devclass |= SDL_UDEV_DEVICE_MOUSE;
         }
         
-        val = _this->udev_device_get_property_value(dev, "ID_INPUT_TOUCHSCREEN");
+        val = _this->syms.udev_device_get_property_value(dev, "ID_INPUT_TOUCHSCREEN");
         if (val != NULL && SDL_strcmp(val, "1") == 0 ) {
             devclass |= SDL_UDEV_DEVICE_TOUCHSCREEN;
         }
@@ -437,14 +437,14 @@ device_event(SDL_UDEV_deviceevent type, struct udev_device *dev)
            
            Ref: http://cgit.freedesktop.org/systemd/systemd/tree/src/udev/udev-builtin-input_id.c#n183
         */
-        val = _this->udev_device_get_property_value(dev, "ID_INPUT_KEY");
+        val = _this->syms.udev_device_get_property_value(dev, "ID_INPUT_KEY");
         if (val != NULL && SDL_strcmp(val, "1") == 0 ) {
             devclass |= SDL_UDEV_DEVICE_KEYBOARD;
         }
 
         if (devclass == 0) {
             /* Fall back to old style input classes */
-            val = _this->udev_device_get_property_value(dev, "ID_CLASS");
+            val = _this->syms.udev_device_get_property_value(dev, "ID_CLASS");
             if (val != NULL) {
                 if (SDL_strcmp(val, "joystick") == 0) {
                     devclass = SDL_UDEV_DEVICE_JOYSTICK;
@@ -481,11 +481,11 @@ SDL_UDEV_Poll(void)
     }
 
     while (SDL_UDEV_hotplug_update_available()) {
-        dev = _this->udev_monitor_receive_device(_this->udev_mon);
+        dev = _this->syms.udev_monitor_receive_device(_this->udev_mon);
         if (dev == NULL) {
             break;
         }
-        action = _this->udev_device_get_action(dev);
+        action = _this->syms.udev_device_get_action(dev);
 
         if (SDL_strcmp(action, "add") == 0) {
             /* Wait for the device to finish initialization */
@@ -496,7 +496,7 @@ SDL_UDEV_Poll(void)
             device_event(SDL_UDEV_DEVICEREMOVED, dev);
         }
         
-        _this->udev_device_unref(dev);
+        _this->syms.udev_device_unref(dev);
     }
 }
 
@@ -547,6 +547,22 @@ SDL_UDEV_DelCallback(SDL_UDEV_Callback cb)
     
 }
 
+const SDL_UDEV_Symbols *
+SDL_UDEV_GetUdevSyms(void)
+{
+    if (SDL_UDEV_Init() < 0) {
+        SDL_SetError("Could not initialize UDEV");
+        return NULL;
+    }
+
+    return &_this->syms;
+}
+
+void
+SDL_UDEV_ReleaseUdevSyms(void)
+{
+    SDL_UDEV_Quit();
+}
 
 #endif /* SDL_USE_LIBUDEV */
 
diff --git a/Source/3rdParty/SDL2/src/core/linux/SDL_udev.h b/Source/3rdParty/SDL2/src/core/linux/SDL_udev.h
index edf5187..8be7434 100644
--- a/Source/3rdParty/SDL2/src/core/linux/SDL_udev.h
+++ b/Source/3rdParty/SDL2/src/core/linux/SDL_udev.h
@@ -64,22 +64,13 @@ typedef struct SDL_UDEV_CallbackList {
     struct SDL_UDEV_CallbackList *next;
 } SDL_UDEV_CallbackList;
 
-typedef struct SDL_UDEV_PrivateData
-{
-    const char *udev_library;
-    void *udev_handle;
-    struct udev *udev;
-    struct udev_monitor *udev_mon;
-    int ref_count;
-    SDL_UDEV_CallbackList *first, *last;
-    
-    /* Function pointers */
+typedef struct SDL_UDEV_Symbols {
     const char *(*udev_device_get_action)(struct udev_device *);
     const char *(*udev_device_get_devnode)(struct udev_device *);
     const char *(*udev_device_get_subsystem)(struct udev_device *);
-	struct udev_device *(*udev_device_get_parent_with_subsystem_devtype)(struct udev_device *udev_device, const char *subsystem, const char *devtype);
+    struct udev_device *(*udev_device_get_parent_with_subsystem_devtype)(struct udev_device *udev_device, const char *subsystem, const char *devtype);
     const char *(*udev_device_get_property_value)(struct udev_device *, const char *);
-	const char *(*udev_device_get_sysattr_value)(struct udev_device *udev_device, const char *sysattr);
+    const char *(*udev_device_get_sysattr_value)(struct udev_device *udev_device, const char *sysattr);
     struct udev_device *(*udev_device_new_from_syspath)(struct udev *, const char *);
     void (*udev_device_unref)(struct udev_device *);
     int (*udev_enumerate_add_match_property)(struct udev_enumerate *, const char *, const char *);
@@ -100,6 +91,19 @@ typedef struct SDL_UDEV_PrivateData
     void (*udev_unref)(struct udev *);
     struct udev_device * (*udev_device_new_from_devnum)(struct udev *udev, char type, dev_t devnum);
     dev_t (*udev_device_get_devnum) (struct udev_device *udev_device);
+} SDL_UDEV_Symbols;
+
+typedef struct SDL_UDEV_PrivateData
+{
+    const char *udev_library;
+    void *udev_handle;
+    struct udev *udev;
+    struct udev_monitor *udev_mon;
+    int ref_count;
+    SDL_UDEV_CallbackList *first, *last;
+    
+    /* Function pointers */
+    SDL_UDEV_Symbols syms;
 } SDL_UDEV_PrivateData;
 
 extern int SDL_UDEV_Init(void);
@@ -110,8 +114,8 @@ extern void SDL_UDEV_Poll(void);
 extern void SDL_UDEV_Scan(void);
 extern int SDL_UDEV_AddCallback(SDL_UDEV_Callback cb);
 extern void SDL_UDEV_DelCallback(SDL_UDEV_Callback cb);
-
-
+extern const SDL_UDEV_Symbols *SDL_UDEV_GetUdevSyms(void);
+extern void SDL_UDEV_ReleaseUdevSyms(void);
 
 
 #endif /* HAVE_LIBUDEV_H */
diff --git a/Source/3rdParty/SDL2/src/core/windows/SDL_windows.c b/Source/3rdParty/SDL2/src/core/windows/SDL_windows.c
index 6624043..4da7d07 100644
--- a/Source/3rdParty/SDL2/src/core/windows/SDL_windows.c
+++ b/Source/3rdParty/SDL2/src/core/windows/SDL_windows.c
@@ -31,6 +31,9 @@
 #ifndef _WIN32_WINNT_VISTA
 #define _WIN32_WINNT_VISTA  0x0600
 #endif
+#ifndef _WIN32_WINNT_WIN7
+#define _WIN32_WINNT_WIN7   0x0601
+#endif
 
 
 /* Sets an error message based on an HRESULT */
diff --git a/Source/3rdParty/SDL2/src/core/winrt/SDL_winrtapp_xaml.cpp b/Source/3rdParty/SDL2/src/core/winrt/SDL_winrtapp_xaml.cpp
index 9789d03..7e2aac8 100644
--- a/Source/3rdParty/SDL2/src/core/winrt/SDL_winrtapp_xaml.cpp
+++ b/Source/3rdParty/SDL2/src/core/winrt/SDL_winrtapp_xaml.cpp
@@ -44,7 +44,7 @@ SDL_bool WINRT_XAMLWasEnabled = SDL_FALSE;
 #if WINAPI_FAMILY == WINAPI_FAMILY_APP
 extern "C"
 ISwapChainBackgroundPanelNative * WINRT_GlobalSwapChainBackgroundPanelNative = NULL;
-static Windows::Foundation::EventRegistrationToken	WINRT_XAMLAppEventToken;
+static Windows::Foundation::EventRegistrationToken  WINRT_XAMLAppEventToken;
 #endif