Don't try to get the JNIEnv on Android

It's currently not used. More stuff is needed anyway which may need a different
approach.

Alc/ALc.c

@@ -1165,75 +1165,6 @@ static void alc_initconfig(void)
 }
 #define DO_INITCONFIG() alcall_once(&alc_config_once, alc_initconfig)
 
-#ifdef __ANDROID__
-#include <jni.h>
-
-static JavaVM *gJavaVM;
-static pthread_key_t gJVMThreadKey;
-
-static void CleanupJNIEnv(void* UNUSED(ptr))
-{
-    JCALL0(gJavaVM,DetachCurrentThread)();
-}
-
-void *Android_GetJNIEnv(void)
-{
-    if(!gJavaVM)
-    {
-        WARN("gJavaVM is NULL!\n");
-        return NULL;
-    }
-
-    /* http://developer.android.com/guide/practices/jni.html
-     *
-     * All threads are Linux threads, scheduled by the kernel. They're usually
-     * started from managed code (using Thread.start), but they can also be
-     * created elsewhere and then attached to the JavaVM. For example, a thread
-     * started with pthread_create can be attached with the JNI
-     * AttachCurrentThread or AttachCurrentThreadAsDaemon functions. Until a
-     * thread is attached, it has no JNIEnv, and cannot make JNI calls.
-     * Attaching a natively-created thread causes a java.lang.Thread object to
-     * be constructed and added to the "main" ThreadGroup, making it visible to
-     * the debugger. Calling AttachCurrentThread on an already-attached thread
-     * is a no-op.
-     */
-    JNIEnv *env = pthread_getspecific(gJVMThreadKey);
-    if(!env)
-    {
-        int status = JCALL(gJavaVM,AttachCurrentThread)(&env, NULL);
-        if(status < 0)
-        {
-            ERR("Failed to attach current thread\n");
-            return NULL;
-        }
-        pthread_setspecific(gJVMThreadKey, env);
-    }
-    return env;
-}
-
-/* Automatically called by JNI. */
-JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *jvm, void* UNUSED(reserved))
-{
-    void *env;
-    int err;
-
-    gJavaVM = jvm;
-    if(JCALL(gJavaVM,GetEnv)(&env, JNI_VERSION_1_4) != JNI_OK)
-    {
-        ERR("Failed to get JNIEnv with JNI_VERSION_1_4\n");
-        return JNI_ERR;
-    }
-
-    /* Create gJVMThreadKey so we can keep track of the JNIEnv assigned to each
-     * thread. The JNIEnv *must* be detached before the thread is destroyed.
-     */
-    if((err=pthread_key_create(&gJVMThreadKey, CleanupJNIEnv)) != 0)
-        ERR("pthread_key_create failed: %d\n", err);
-    pthread_setspecific(gJVMThreadKey, env);
-    return JNI_VERSION_1_4;
-}
-#endif
-
 
 /************************************************
  * Library deinitialization

Alc/backends/opensl.c

@@ -391,7 +391,6 @@ static ALCboolean ALCopenslPlayback_reset(ALCopenslPlayback *self)
     SLInterfaceID ids[2];
     SLboolean reqs[2];
     SLresult result;
-    JNIEnv *env;
 
     if(self->mBufferQueueObj != NULL)
         VCALL0(self->mBufferQueueObj,Destroy)();
@@ -401,12 +400,15 @@ static ALCboolean ALCopenslPlayback_reset(ALCopenslPlayback *self)
     self->mRing = NULL;
 
     sampleRate = device->Frequency;
-    if(!(device->Flags&DEVICE_FREQUENCY_REQUEST) && (env=Android_GetJNIEnv()) != NULL)
+#if 0
+    if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
     {
         /* FIXME: Disabled until I figure out how to get the Context needed for
          * the getSystemService call.
          */
-#if 0
+        JNIEnv *env = Android_GetJNIEnv();
+        jobject jctx = Android_GetContext();
+
         /* Get necessary stuff for using java.lang.Integer,
          * android.content.Context, and android.media.AudioManager.
          */
@@ -442,7 +444,7 @@ static ALCboolean ALCopenslPlayback_reset(ALCopenslPlayback *self)
         /* Now make the calls. */
         //AudioManager audMgr = (AudioManager)getSystemService(Context.AUDIO_SERVICE);
         strobj = JCALL(env,GetStaticObjectField)(ctx_cls, ctx_audsvc);
-        jobject audMgr = JCALL(env,CallObjectMethod)(ctx_cls, ctx_getSysSvc, strobj);
+        jobject audMgr = JCALL(env,CallObjectMethod)(jctx, ctx_getSysSvc, strobj);
         strchars = JCALL(env,GetStringUTFChars)(strobj, NULL);
         TRACE("Context.getSystemService(%s) = %p\n", strchars, audMgr);
         JCALL(env,ReleaseStringUTFChars)(strobj, strchars);
@@ -463,8 +465,8 @@ static ALCboolean ALCopenslPlayback_reset(ALCopenslPlayback *self)
 
         if(!sampleRate) sampleRate = device->Frequency;
         else sampleRate = maxu(sampleRate, MIN_OUTPUT_RATE);
-#endif
     }
+#endif
 
     if(sampleRate != device->Frequency)
     {

Alc/compat.h

@@ -50,14 +50,6 @@ void CloseLib(void *handle);
 void *GetSymbol(void *handle, const char *name);
 #endif
 
-#ifdef __ANDROID__
-#define JCALL(obj, func)  ((*(obj))->func((obj), EXTRACT_VCALL_ARGS
-#define JCALL0(obj, func)  ((*(obj))->func((obj) EXTRACT_VCALL_ARGS
-
-/** Returns a JNIEnv*. */
-void *Android_GetJNIEnv(void);
-#endif
-
 #ifdef __cplusplus
 } /* extern "C" */
 #endif