118 lines
3.6 KiB
C
118 lines
3.6 KiB
C
/*
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* Android support routines for PhysicsFS.
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*
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* Please see the file LICENSE.txt in the source's root directory.
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*
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* This file written by Ryan C. Gordon.
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*/
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_platforms.h"
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#ifdef PHYSFS_PLATFORM_ANDROID
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#include <jni.h>
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#include <android/log.h>
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#include "physfs_internal.h"
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static char *prefpath = NULL;
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int __PHYSFS_platformInit(void)
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{
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return 1; /* always succeed. */
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} /* __PHYSFS_platformInit */
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void __PHYSFS_platformDeinit(void)
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{
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if (prefpath)
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{
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allocator.Free(prefpath);
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prefpath = NULL;
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} /* if */
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} /* __PHYSFS_platformDeinit */
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void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
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{
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/* no-op. */
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} /* __PHYSFS_platformDetectAvailableCDs */
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char *__PHYSFS_platformCalcBaseDir(const char *argv0)
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{
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/* as a cheat, we expect argv0 to be a PHYSFS_AndroidInit* on Android. */
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PHYSFS_AndroidInit *ainit = (PHYSFS_AndroidInit *) argv0;
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char *retval = NULL;
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JNIEnv *jenv = NULL;
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jobject jcontext;
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if (ainit == NULL)
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return __PHYSFS_strdup("/"); /* oh well. */
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jenv = (JNIEnv *) ainit->jnienv;
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jcontext = (jobject) ainit->context;
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if ((*jenv)->PushLocalFrame(jenv, 16) >= 0)
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{
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jobject jfileobj = 0;
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jmethodID jmeth = 0;
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jthrowable jexception = 0;
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jstring jstr = 0;
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jmeth = (*jenv)->GetMethodID(jenv, (*jenv)->GetObjectClass(jenv, jcontext), "getPackageResourcePath", "()Ljava/lang/String;");
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jstr = (jstring)(*jenv)->CallObjectMethod(jenv, jcontext, jmeth);
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jexception = (*jenv)->ExceptionOccurred(jenv); /* this can't throw an exception, right? Just in case. */
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if (jexception != NULL)
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(*jenv)->ExceptionClear(jenv);
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else
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{
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const char *path = (*jenv)->GetStringUTFChars(jenv, jstr, NULL);
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retval = __PHYSFS_strdup(path);
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(*jenv)->ReleaseStringUTFChars(jenv, jstr, path);
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} /* else */
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/* We only can rely on the Activity being valid during this function call,
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so go ahead and grab the prefpath too. */
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jmeth = (*jenv)->GetMethodID(jenv, (*jenv)->GetObjectClass(jenv, jcontext), "getFilesDir", "()Ljava/io/File;");
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jfileobj = (*jenv)->CallObjectMethod(jenv, jcontext, jmeth);
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if (jfileobj)
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{
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jmeth = (*jenv)->GetMethodID(jenv, (*jenv)->GetObjectClass(jenv, jfileobj), "getCanonicalPath", "()Ljava/lang/String;");
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jstr = (jstring)(*jenv)->CallObjectMethod(jenv, jfileobj, jmeth);
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jexception = (*jenv)->ExceptionOccurred(jenv);
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if (jexception != NULL)
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(*jenv)->ExceptionClear(jenv);
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else
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{
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const char *path = (*jenv)->GetStringUTFChars(jenv, jstr, NULL);
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const size_t len = strlen(path) + 2;
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prefpath = allocator.Malloc(len);
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if (prefpath)
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snprintf(prefpath, len, "%s/", path);
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(*jenv)->ReleaseStringUTFChars(jenv, jstr, path);
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} /* else */
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} /* if */
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(*jenv)->PopLocalFrame(jenv, NULL);
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} /* if */
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/* we can't return NULL because then PhysicsFS will treat argv0 as a string, but it's a non-NULL jobject! */
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if (retval == NULL)
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retval = __PHYSFS_strdup("/"); /* we pray this works. */
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return retval;
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} /* __PHYSFS_platformCalcBaseDir */
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char *__PHYSFS_platformCalcPrefDir(const char *org, const char *app)
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{
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return __PHYSFS_strdup(prefpath ? prefpath : "/");
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} /* __PHYSFS_platformCalcPrefDir */
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#endif /* PHYSFS_PLATFORM_ANDROID */
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/* end of physfs_platform_android.c ... */
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