102 lines
4.2 KiB
C++
102 lines
4.2 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: dictionary.cpp"
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#include <stdint.h>
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#include "bigram_dictionary.h"
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#include "binary_format.h"
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#include "defines.h"
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#include "dictionary.h"
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#include "dic_traverse_wrapper.h"
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#include "gesture_decoder_wrapper.h"
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#include "unigram_dictionary.h"
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namespace latinime {
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// TODO: Change the type of all keyCodes to uint32_t
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Dictionary::Dictionary(void *dict, int dictSize, int mmapFd, int dictBufAdjust,
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int typedLetterMultiplier, int fullWordMultiplier,
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int maxWordLength, int maxWords, int maxPredictions)
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: mDict(static_cast<unsigned char *>(dict)),
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mOffsetDict((static_cast<unsigned char *>(dict)) + BinaryFormat::getHeaderSize(mDict)),
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mDictSize(dictSize), mMmapFd(mmapFd), mDictBufAdjust(dictBufAdjust) {
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if (DEBUG_DICT) {
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if (MAX_WORD_LENGTH_INTERNAL < maxWordLength) {
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AKLOGI("Max word length (%d) is greater than %d",
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maxWordLength, MAX_WORD_LENGTH_INTERNAL);
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AKLOGI("IN NATIVE SUGGEST Version: %d", (mDict[0] & 0xFF));
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}
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}
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const unsigned int options = BinaryFormat::getFlags(mDict);
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mUnigramDictionary = new UnigramDictionary(mOffsetDict, typedLetterMultiplier,
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fullWordMultiplier, maxWordLength, maxWords, options);
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mBigramDictionary = new BigramDictionary(mOffsetDict, maxWordLength, maxPredictions);
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mGestureDecoder = new GestureDecoderWrapper(maxWordLength, maxWords);
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}
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Dictionary::~Dictionary() {
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delete mUnigramDictionary;
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delete mBigramDictionary;
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delete mGestureDecoder;
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}
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int Dictionary::getSuggestions(ProximityInfo *proximityInfo, void *traverseSession,
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int *xcoordinates, int *ycoordinates, int *times, int *pointerIds,
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int *codes, int codesSize, int *prevWordChars,
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int prevWordLength, int commitPoint, bool isGesture,
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bool useFullEditDistance, unsigned short *outWords,
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int *frequencies, int *spaceIndices, int *outputTypes) const {
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int result = 0;
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if (isGesture) {
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DicTraverseWrapper::initDicTraverseSession(
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traverseSession, this, prevWordChars, prevWordLength);
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result = mGestureDecoder->getSuggestions(proximityInfo, traverseSession,
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xcoordinates, ycoordinates, times, pointerIds, codes, codesSize, commitPoint,
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outWords, frequencies, spaceIndices, outputTypes);
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if (DEBUG_DICT) {
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DUMP_RESULT(outWords, frequencies, 18 /* MAX_WORDS */, MAX_WORD_LENGTH_INTERNAL);
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}
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return result;
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} else {
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std::map<int, int> bigramMap;
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uint8_t bigramFilter[BIGRAM_FILTER_BYTE_SIZE];
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mBigramDictionary->fillBigramAddressToFrequencyMapAndFilter(prevWordChars,
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prevWordLength, &bigramMap, bigramFilter);
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result = mUnigramDictionary->getSuggestions(proximityInfo, xcoordinates,
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ycoordinates, codes, codesSize, &bigramMap, bigramFilter,
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useFullEditDistance, outWords, frequencies, outputTypes);
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return result;
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}
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}
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int Dictionary::getBigrams(const int32_t *word, int length, int *codes, int codesSize,
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unsigned short *outWords, int *frequencies, int *outputTypes) const {
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if (length <= 0) return 0;
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return mBigramDictionary->getBigrams(word, length, codes, codesSize, outWords, frequencies,
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outputTypes);
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}
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int Dictionary::getFrequency(const int32_t *word, int length) const {
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return mUnigramDictionary->getFrequency(word, length);
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}
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bool Dictionary::isValidBigram(const int32_t *word1, int length1, const int32_t *word2,
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int length2) const {
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return mBigramDictionary->isValidBigram(word1, length1, word2, length2);
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}
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} // namespace latinime
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