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