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/* //device/libs/android_runtime/android_text_AndroidBidi.cpp
**
** Copyright 2010, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#define LOG_TAG "AndroidUnicode"
#include "JNIHelp.h"
#include "core_jni_helpers.h"
#include "utils/misc.h"
#include "utils/Log.h"
#include "unicode/ubidi.h"
namespace android {
static jint runBidi(JNIEnv* env, jobject obj, jint dir, jcharArray chsArray,
jbyteArray infoArray, jint n, jboolean haveInfo)
{
// Parameters are checked on java side
// Failures from GetXXXArrayElements indicate a serious out-of-memory condition
// that we don't bother to report, we're probably dead anyway.
jint result = 0;
jchar* chs = env->GetCharArrayElements(chsArray, NULL);
if (chs != NULL) {
jbyte* info = env->GetByteArrayElements(infoArray, NULL);
if (info != NULL) {
UErrorCode status = U_ZERO_ERROR;
UBiDi* bidi = ubidi_openSized(n, 0, &status);
ubidi_setPara(bidi, chs, n, dir, NULL, &status);
if (U_SUCCESS(status)) {
for (int i = 0; i < n; ++i) {
info[i] = ubidi_getLevelAt(bidi, i);
}
result = ubidi_getParaLevel(bidi);
} else {
jniThrowException(env, "java/lang/RuntimeException", NULL);
}
ubidi_close(bidi);
env->ReleaseByteArrayElements(infoArray, info, 0);
}
env->ReleaseCharArrayElements(chsArray, chs, JNI_ABORT);
}
return result;
}
static JNINativeMethod gMethods[] = {
{ "runBidi", "(I[C[BIZ)I", (void*) runBidi }
};
int register_android_text_AndroidBidi(JNIEnv* env)
{
return RegisterMethodsOrDie(env, "android/text/AndroidBidi", gMethods, NELEM(gMethods));
}
}
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