| /* |
| * Copyright (C) 2013 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. |
| */ |
| |
| #ifndef LATINIME_PROXIMITY_INFO_STATE_UTILS_H |
| #define LATINIME_PROXIMITY_INFO_STATE_UTILS_H |
| |
| #include <bitset> |
| #include <vector> |
| |
| #include "defines.h" |
| #include "hash_map_compat.h" |
| |
| namespace latinime { |
| class ProximityInfo; |
| class ProximityInfoParams; |
| |
| class ProximityInfoStateUtils { |
| public: |
| typedef hash_map_compat<int, float> NearKeysDistanceMap; |
| typedef std::bitset<MAX_KEY_COUNT_IN_A_KEYBOARD> NearKeycodesSet; |
| |
| static int trimLastTwoTouchPoints(std::vector<int> *sampledInputXs, |
| std::vector<int> *sampledInputYs, std::vector<int> *sampledInputTimes, |
| std::vector<int> *sampledLengthCache, std::vector<int> *sampledInputIndice); |
| static int updateTouchPoints(const ProximityInfo *const proximityInfo, |
| const int maxPointToKeyLength, const int *const inputProximities, |
| const int *const inputXCoordinates, const int *const inputYCoordinates, |
| const int *const times, const int *const pointerIds, |
| const float verticalSweetSpotScale, const int inputSize, |
| const bool isGeometric, const int pointerId, const int pushTouchPointStartIndex, |
| std::vector<int> *sampledInputXs, std::vector<int> *sampledInputYs, |
| std::vector<int> *sampledInputTimes, std::vector<int> *sampledLengthCache, |
| std::vector<int> *sampledInputIndice); |
| static const int *getProximityCodePointsAt(const int *const inputProximities, const int index); |
| static int getPrimaryCodePointAt(const int *const inputProximities, const int index); |
| static void popInputData(std::vector<int> *sampledInputXs, std::vector<int> *sampledInputYs, |
| std::vector<int> *sampledInputTimes, std::vector<int> *sampledLengthCache, |
| std::vector<int> *sampledInputIndice); |
| static float refreshSpeedRates(const int inputSize, const int *const xCoordinates, |
| const int *const yCoordinates, const int *const times, const int lastSavedInputSize, |
| const int sampledInputSize, const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, |
| const std::vector<int> *const sampledInputTimes, |
| const std::vector<int> *const sampledLengthCache, |
| const std::vector<int> *const sampledInputIndice, |
| std::vector<float> *sampledSpeedRates, std::vector<float> *sampledDirections); |
| static void refreshBeelineSpeedRates(const int mostCommonKeyWidth, const float averageSpeed, |
| const int inputSize, const int *const xCoordinates, const int *const yCoordinates, |
| const int *times, const int sampledInputSize, |
| const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, const std::vector<int> *const inputIndice, |
| std::vector<int> *beelineSpeedPercentiles); |
| static float getDirection(const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, const int index0, const int index1); |
| static void updateAlignPointProbabilities(const float maxPointToKeyLength, |
| const int mostCommonKeyWidth, const int keyCount, const int start, |
| const int sampledInputSize, const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, |
| const std::vector<float> *const sampledSpeedRates, |
| const std::vector<int> *const sampledLengthCache, |
| const std::vector<float> *const sampledNormalizedSquaredLengthCache, |
| std::vector<NearKeycodesSet> *sampledNearKeySets, |
| std::vector<hash_map_compat<int, float> > *charProbabilities); |
| static void updateSampledSearchKeySets(const ProximityInfo *const proximityInfo, |
| const int sampledInputSize, const int lastSavedInputSize, |
| const std::vector<int> *const sampledLengthCache, |
| const std::vector<NearKeycodesSet> *const sampledNearKeySets, |
| std::vector<NearKeycodesSet> *sampledSearchKeySets, |
| std::vector<std::vector<int> > *sampledSearchKeyVectors); |
| static float getPointToKeyByIdLength(const float maxPointToKeyLength, |
| const std::vector<float> *const sampledNormalizedSquaredLengthCache, const int keyCount, |
| const int inputIndex, const int keyId); |
| static void initGeometricDistanceInfos(const ProximityInfo *const proximityInfo, |
| const int sampledInputSize, const int lastSavedInputSize, |
| const float verticalSweetSpotScale, |
| const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, |
| std::vector<NearKeycodesSet> *sampledNearKeySets, |
| std::vector<float> *sampledNormalizedSquaredLengthCache); |
| static void initPrimaryInputWord(const int inputSize, const int *const inputProximities, |
| int *primaryInputWord); |
| static void initNormalizedSquaredDistances(const ProximityInfo *const proximityInfo, |
| const int inputSize, const int *inputXCoordinates, const int *inputYCoordinates, |
| const int *const inputProximities, const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, int *normalizedSquaredDistances); |
| static void dump(const bool isGeometric, const int inputSize, |
| const int *const inputXCoordinates, const int *const inputYCoordinates, |
| const int sampledInputSize, const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, |
| const std::vector<int> *const sampledTimes, |
| const std::vector<float> *const sampledSpeedRates, |
| const std::vector<int> *const sampledBeelineSpeedPercentiles); |
| static bool checkAndReturnIsContinuousSuggestionPossible(const int inputSize, |
| const int *const xCoordinates, const int *const yCoordinates, const int *const times, |
| const int sampledInputSize, const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, |
| const std::vector<int> *const sampledTimes, |
| const std::vector<int> *const sampledInputIndices); |
| // TODO: Move to most_probable_string_utils.h |
| static float getMostProbableString(const ProximityInfo *const proximityInfo, |
| const int sampledInputSize, |
| const std::vector<hash_map_compat<int, float> > *const charProbabilities, |
| int *const codePointBuf); |
| |
| private: |
| DISALLOW_IMPLICIT_CONSTRUCTORS(ProximityInfoStateUtils); |
| |
| static float updateNearKeysDistances(const ProximityInfo *const proximityInfo, |
| const float maxPointToKeyLength, const int x, const int y, |
| const float verticalSweetSpotScale, |
| NearKeysDistanceMap *const currentNearKeysDistances); |
| static bool isPrevLocalMin(const NearKeysDistanceMap *const currentNearKeysDistances, |
| const NearKeysDistanceMap *const prevNearKeysDistances, |
| const NearKeysDistanceMap *const prevPrevNearKeysDistances); |
| static float getPointScore(const int mostCommonKeyWidth, const int x, const int y, |
| const int time, const bool lastPoint, const float nearest, const float sumAngle, |
| const NearKeysDistanceMap *const currentNearKeysDistances, |
| const NearKeysDistanceMap *const prevNearKeysDistances, |
| const NearKeysDistanceMap *const prevPrevNearKeysDistances, |
| std::vector<int> *sampledInputXs, std::vector<int> *sampledInputYs); |
| static bool pushTouchPoint(const ProximityInfo *const proximityInfo, |
| const int maxPointToKeyLength, const int inputIndex, const int nodeCodePoint, int x, |
| int y, const int time, const float verticalSweetSpotScale, |
| const bool doSampling, const bool isLastPoint, |
| const float sumAngle, NearKeysDistanceMap *const currentNearKeysDistances, |
| const NearKeysDistanceMap *const prevNearKeysDistances, |
| const NearKeysDistanceMap *const prevPrevNearKeysDistances, |
| std::vector<int> *sampledInputXs, std::vector<int> *sampledInputYs, |
| std::vector<int> *sampledInputTimes, std::vector<int> *sampledLengthCache, |
| std::vector<int> *sampledInputIndice); |
| static float calculateBeelineSpeedRate(const int mostCommonKeyWidth, const float averageSpeed, |
| const int id, const int inputSize, const int *const xCoordinates, |
| const int *const yCoordinates, const int *times, const int sampledInputSize, |
| const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, |
| const std::vector<int> *const inputIndice); |
| static float getPointAngle(const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, const int index); |
| static float getPointsAngle(const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, const int index0, const int index1, |
| const int index2); |
| static bool suppressCharProbabilities(const int mostCommonKeyWidth, |
| const int sampledInputSize, const std::vector<int> *const lengthCache, const int index0, |
| const int index1, std::vector<hash_map_compat<int, float> > *charProbabilities); |
| static float calculateSquaredDistanceFromSweetSpotCenter( |
| const ProximityInfo *const proximityInfo, const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, const int keyIndex, |
| const int inputIndex); |
| static float calculateNormalizedSquaredDistance(const ProximityInfo *const proximityInfo, |
| const std::vector<int> *const sampledInputXs, |
| const std::vector<int> *const sampledInputYs, const int keyIndex, const int inputIndex); |
| }; |
| } // namespace latinime |
| #endif // LATINIME_PROXIMITY_INFO_STATE_UTILS_H |