296 lines
12 KiB
C++
296 lines
12 KiB
C++
/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "LatinIME: jni: BinaryDictionary"
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#include "com_android_inputmethod_latin_BinaryDictionary.h"
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#include <cstring> // for memset()
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#include "defines.h"
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#include "jni.h"
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#include "jni_common.h"
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#include "suggest/core/dictionary/dictionary.h"
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#include "suggest/core/suggest_options.h"
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#include "suggest/policyimpl/dictionary/dictionary_structure_with_buffer_policy_factory.h"
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#include "utils/autocorrection_threshold_utils.h"
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namespace latinime {
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class ProximityInfo;
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static jlong latinime_BinaryDictionary_open(JNIEnv *env, jclass clazz, jstring sourceDir,
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jlong dictOffset, jlong dictSize, jboolean isUpdatable) {
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PROF_OPEN;
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PROF_START(66);
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const jsize sourceDirUtf8Length = env->GetStringUTFLength(sourceDir);
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if (sourceDirUtf8Length <= 0) {
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AKLOGE("DICT: Can't get sourceDir string");
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return 0;
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}
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char sourceDirChars[sourceDirUtf8Length + 1];
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env->GetStringUTFRegion(sourceDir, 0, env->GetStringLength(sourceDir), sourceDirChars);
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sourceDirChars[sourceDirUtf8Length] = '\0';
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DictionaryStructureWithBufferPolicy *const dictionaryStructureWithBufferPolicy =
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DictionaryStructureWithBufferPolicyFactory::newDictionaryStructureWithBufferPolicy(
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sourceDirChars, static_cast<int>(sourceDirUtf8Length),
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static_cast<int>(dictOffset), static_cast<int>(dictSize),
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isUpdatable == JNI_TRUE);
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if (!dictionaryStructureWithBufferPolicy) {
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return 0;
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}
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Dictionary *const dictionary = new Dictionary(env, dictionaryStructureWithBufferPolicy);
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PROF_END(66);
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PROF_CLOSE;
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return reinterpret_cast<jlong>(dictionary);
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}
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static void latinime_BinaryDictionary_close(JNIEnv *env, jclass clazz, jlong dict) {
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Dictionary *dictionary = reinterpret_cast<Dictionary *>(dict);
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if (!dictionary) return;
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delete dictionary;
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}
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static int latinime_BinaryDictionary_getSuggestions(JNIEnv *env, jclass clazz, jlong dict,
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jlong proximityInfo, jlong dicTraverseSession, jintArray xCoordinatesArray,
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jintArray yCoordinatesArray, jintArray timesArray, jintArray pointerIdsArray,
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jintArray inputCodePointsArray, jint inputSize, jint commitPoint, jintArray suggestOptions,
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jintArray prevWordCodePointsForBigrams, jintArray outputCodePointsArray,
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jintArray scoresArray, jintArray spaceIndicesArray, jintArray outputTypesArray) {
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Dictionary *dictionary = reinterpret_cast<Dictionary *>(dict);
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if (!dictionary) return 0;
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ProximityInfo *pInfo = reinterpret_cast<ProximityInfo *>(proximityInfo);
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DicTraverseSession *traverseSession =
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reinterpret_cast<DicTraverseSession *>(dicTraverseSession);
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// Input values
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int xCoordinates[inputSize];
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int yCoordinates[inputSize];
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int times[inputSize];
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int pointerIds[inputSize];
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const jsize inputCodePointsLength = env->GetArrayLength(inputCodePointsArray);
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int inputCodePoints[inputCodePointsLength];
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const jsize prevWordCodePointsLength =
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prevWordCodePointsForBigrams ? env->GetArrayLength(prevWordCodePointsForBigrams) : 0;
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int prevWordCodePointsInternal[prevWordCodePointsLength];
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int *prevWordCodePoints = 0;
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env->GetIntArrayRegion(xCoordinatesArray, 0, inputSize, xCoordinates);
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env->GetIntArrayRegion(yCoordinatesArray, 0, inputSize, yCoordinates);
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env->GetIntArrayRegion(timesArray, 0, inputSize, times);
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env->GetIntArrayRegion(pointerIdsArray, 0, inputSize, pointerIds);
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env->GetIntArrayRegion(inputCodePointsArray, 0, inputCodePointsLength, inputCodePoints);
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if (prevWordCodePointsForBigrams) {
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env->GetIntArrayRegion(prevWordCodePointsForBigrams, 0, prevWordCodePointsLength,
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prevWordCodePointsInternal);
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prevWordCodePoints = prevWordCodePointsInternal;
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}
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const jsize numberOfOptions = env->GetArrayLength(suggestOptions);
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int options[numberOfOptions];
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env->GetIntArrayRegion(suggestOptions, 0, numberOfOptions, options);
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SuggestOptions givenSuggestOptions(options, numberOfOptions);
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// Output values
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/* By the way, let's check the output array length here to make sure */
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const jsize outputCodePointsLength = env->GetArrayLength(outputCodePointsArray);
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if (outputCodePointsLength != (MAX_WORD_LENGTH * MAX_RESULTS)) {
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AKLOGE("Invalid outputCodePointsLength: %d", outputCodePointsLength);
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ASSERT(false);
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return 0;
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}
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const jsize scoresLength = env->GetArrayLength(scoresArray);
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if (scoresLength != MAX_RESULTS) {
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AKLOGE("Invalid scoresLength: %d", scoresLength);
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ASSERT(false);
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return 0;
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}
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int outputCodePoints[outputCodePointsLength];
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int scores[scoresLength];
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const jsize spaceIndicesLength = env->GetArrayLength(spaceIndicesArray);
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int spaceIndices[spaceIndicesLength];
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const jsize outputTypesLength = env->GetArrayLength(outputTypesArray);
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int outputTypes[outputTypesLength];
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memset(outputCodePoints, 0, sizeof(outputCodePoints));
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memset(scores, 0, sizeof(scores));
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memset(spaceIndices, 0, sizeof(spaceIndices));
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memset(outputTypes, 0, sizeof(outputTypes));
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int count;
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if (givenSuggestOptions.isGesture() || inputSize > 0) {
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count = dictionary->getSuggestions(pInfo, traverseSession, xCoordinates, yCoordinates,
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times, pointerIds, inputCodePoints, inputSize, prevWordCodePoints,
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prevWordCodePointsLength, commitPoint, &givenSuggestOptions, outputCodePoints,
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scores, spaceIndices, outputTypes);
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} else {
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count = dictionary->getBigrams(prevWordCodePoints, prevWordCodePointsLength,
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outputCodePoints, scores, outputTypes);
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}
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// Copy back the output values
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env->SetIntArrayRegion(outputCodePointsArray, 0, outputCodePointsLength, outputCodePoints);
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env->SetIntArrayRegion(scoresArray, 0, scoresLength, scores);
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env->SetIntArrayRegion(spaceIndicesArray, 0, spaceIndicesLength, spaceIndices);
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env->SetIntArrayRegion(outputTypesArray, 0, outputTypesLength, outputTypes);
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return count;
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}
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static jint latinime_BinaryDictionary_getProbability(JNIEnv *env, jclass clazz, jlong dict,
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jintArray word) {
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Dictionary *dictionary = reinterpret_cast<Dictionary *>(dict);
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if (!dictionary) return NOT_A_PROBABILITY;
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const jsize wordLength = env->GetArrayLength(word);
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int codePoints[wordLength];
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env->GetIntArrayRegion(word, 0, wordLength, codePoints);
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return dictionary->getProbability(codePoints, wordLength);
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}
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static jboolean latinime_BinaryDictionary_isValidBigram(JNIEnv *env, jclass clazz, jlong dict,
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jintArray word0, jintArray word1) {
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Dictionary *dictionary = reinterpret_cast<Dictionary *>(dict);
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if (!dictionary) return JNI_FALSE;
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const jsize word0Length = env->GetArrayLength(word0);
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const jsize word1Length = env->GetArrayLength(word1);
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int word0CodePoints[word0Length];
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int word1CodePoints[word1Length];
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env->GetIntArrayRegion(word0, 0, word0Length, word0CodePoints);
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env->GetIntArrayRegion(word1, 0, word1Length, word1CodePoints);
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return dictionary->isValidBigram(word0CodePoints, word0Length, word1CodePoints, word1Length);
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}
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static jfloat latinime_BinaryDictionary_calcNormalizedScore(JNIEnv *env, jclass clazz,
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jintArray before, jintArray after, jint score) {
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jsize beforeLength = env->GetArrayLength(before);
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jsize afterLength = env->GetArrayLength(after);
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int beforeCodePoints[beforeLength];
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int afterCodePoints[afterLength];
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env->GetIntArrayRegion(before, 0, beforeLength, beforeCodePoints);
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env->GetIntArrayRegion(after, 0, afterLength, afterCodePoints);
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return AutocorrectionThresholdUtils::calcNormalizedScore(beforeCodePoints, beforeLength,
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afterCodePoints, afterLength, score);
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}
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static jint latinime_BinaryDictionary_editDistance(JNIEnv *env, jclass clazz, jintArray before,
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jintArray after) {
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jsize beforeLength = env->GetArrayLength(before);
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jsize afterLength = env->GetArrayLength(after);
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int beforeCodePoints[beforeLength];
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int afterCodePoints[afterLength];
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env->GetIntArrayRegion(before, 0, beforeLength, beforeCodePoints);
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env->GetIntArrayRegion(after, 0, afterLength, afterCodePoints);
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return AutocorrectionThresholdUtils::editDistance(beforeCodePoints, beforeLength,
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afterCodePoints, afterLength);
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}
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static void latinime_BinaryDictionary_addUnigramWord(JNIEnv *env, jclass clazz, jlong dict,
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jintArray word, jint probability) {
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Dictionary *dictionary = reinterpret_cast<Dictionary *>(dict);
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if (!dictionary) {
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return;
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}
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jsize wordLength = env->GetArrayLength(word);
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int codePoints[wordLength];
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dictionary->addUnigramWord(codePoints, wordLength, probability);
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}
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static void latinime_BinaryDictionary_addBigramWords(JNIEnv *env, jclass clazz, jlong dict,
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jintArray word0, jintArray word1, jint probability) {
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Dictionary *dictionary = reinterpret_cast<Dictionary *>(dict);
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if (!dictionary) {
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return;
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}
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jsize word0Length = env->GetArrayLength(word0);
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int word0CodePoints[word0Length];
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jsize word1Length = env->GetArrayLength(word1);
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int word1CodePoints[word1Length];
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dictionary->addBigramWords(word0CodePoints, word0Length, word1CodePoints,
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word1Length, probability);
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}
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static void latinime_BinaryDictionary_removeBigramWords(JNIEnv *env, jclass clazz, jlong dict,
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jintArray word0, jintArray word1) {
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Dictionary *dictionary = reinterpret_cast<Dictionary *>(dict);
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if (!dictionary) {
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return;
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}
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jsize word0Length = env->GetArrayLength(word0);
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int word0CodePoints[word0Length];
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jsize word1Length = env->GetArrayLength(word1);
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int word1CodePoints[word1Length];
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dictionary->removeBigramWords(word0CodePoints, word0Length, word1CodePoints,
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word1Length);
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}
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static const JNINativeMethod sMethods[] = {
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{
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const_cast<char *>("openNative"),
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const_cast<char *>("(Ljava/lang/String;JJZ)J"),
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reinterpret_cast<void *>(latinime_BinaryDictionary_open)
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},
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{
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const_cast<char *>("closeNative"),
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const_cast<char *>("(J)V"),
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reinterpret_cast<void *>(latinime_BinaryDictionary_close)
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},
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{
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const_cast<char *>("getSuggestionsNative"),
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const_cast<char *>("(JJJ[I[I[I[I[III[I[I[I[I[I[I)I"),
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reinterpret_cast<void *>(latinime_BinaryDictionary_getSuggestions)
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},
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{
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const_cast<char *>("getProbabilityNative"),
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const_cast<char *>("(J[I)I"),
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reinterpret_cast<void *>(latinime_BinaryDictionary_getProbability)
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},
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{
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const_cast<char *>("isValidBigramNative"),
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const_cast<char *>("(J[I[I)Z"),
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reinterpret_cast<void *>(latinime_BinaryDictionary_isValidBigram)
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},
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{
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const_cast<char *>("calcNormalizedScoreNative"),
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const_cast<char *>("([I[II)F"),
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reinterpret_cast<void *>(latinime_BinaryDictionary_calcNormalizedScore)
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},
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{
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const_cast<char *>("editDistanceNative"),
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const_cast<char *>("([I[I)I"),
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reinterpret_cast<void *>(latinime_BinaryDictionary_editDistance)
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},
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{
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const_cast<char *>("addUnigramWordNative"),
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const_cast<char *>("(J[II)V"),
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reinterpret_cast<void *>(latinime_BinaryDictionary_addUnigramWord)
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},
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{
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const_cast<char *>("addBigramWordsNative"),
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const_cast<char *>("(J[I[II)V"),
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reinterpret_cast<void *>(latinime_BinaryDictionary_addBigramWords)
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},
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{
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const_cast<char *>("removeBigramWordsNative"),
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const_cast<char *>("(J[I[I)V"),
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reinterpret_cast<void *>(latinime_BinaryDictionary_removeBigramWords)
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}
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};
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int register_BinaryDictionary(JNIEnv *env) {
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const char *const kClassPathName = "com/android/inputmethod/latin/BinaryDictionary";
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return registerNativeMethods(env, kClassPathName, sMethods, NELEMS(sMethods));
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}
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} // namespace latinime
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