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Extend JNI interface to pass the key coordinate information 

Change-Id: Iec0d1415d6abba43b775a014516b961b167597b7
main
Yusuke Nojima 2011-09-21 12:02:47 +09:00
parent a35ea4cba8
commit 0e1f656c1b
5 changed files with 166 additions and 9 deletions
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24
java/src/com/android/inputmethod/keyboard/ProximityInfo.java
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@ -65,7 +65,8 @@ public class ProximityInfo {
spellCheckerProximityInfo.mNativeProximityInfo =
spellCheckerProximityInfo.setProximityInfoNative(
SpellCheckerProximityInfo.ROW_SIZE,
480, 300, 10, 3, SpellCheckerProximityInfo.PROXIMITY);
480, 300, 10, 3, SpellCheckerProximityInfo.PROXIMITY,
0, null, null, null, null, null);
return spellCheckerProximityInfo;
}
@ -74,7 +75,9 @@ public class ProximityInfo {
Utils.loadNativeLibrary();
}
private native int setProximityInfoNative(int maxProximityCharsSize, int displayWidth,
int displayHeight, int gridWidth, int gridHeight, int[] proximityCharsArray);
int displayHeight, int gridWidth, int gridHeight, int[] proximityCharsArray,
int keyCount, int[] keyXCoordinates, int[] keyYCoordinates,
int[] keyWidths, int[] keyHeights, int[] keyCharCodes);
private native void releaseProximityInfoNative(int nativeProximityInfo);
private final void setProximityInfo(int[][] gridNeighborKeyIndexes, int keyboardWidth,
@ -88,8 +91,23 @@ public class ProximityInfo {
keys.get(gridNeighborKeyIndexes[i][j]).mCode;
}
}
final int keyCount = keys.size();
int[] keyXCoordinates = new int[keyCount];
int[] keyYCoordinates = new int[keyCount];
int[] keyWidths = new int[keyCount];
int[] keyHeights = new int[keyCount];
int[] keyCharCodes = new int[keyCount];
for (int i = 0; i < keyCount; ++i) {
final Key key = keys.get(i);
keyXCoordinates[i] = key.mX;
keyYCoordinates[i] = key.mY;
keyWidths[i] = key.mWidth;
keyHeights[i] = key.mHeight;
keyCharCodes[i] = key.mCode;
}
mNativeProximityInfo = setProximityInfoNative(MAX_PROXIMITY_CHARS_SIZE,
keyboardWidth, keyboardHeight, mGridWidth, mGridHeight, proximityCharsArray);
keyboardWidth, keyboardHeight, mGridWidth, mGridHeight, proximityCharsArray,
keyCount, keyXCoordinates, keyYCoordinates, keyWidths, keyHeights, keyCharCodes);
}
public int getNativeProximityInfo() {

20
native/jni/com_android_inputmethod_keyboard_ProximityInfo.cpp
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@ -30,10 +30,24 @@ namespace latinime {
static jint latinime_Keyboard_setProximityInfo(JNIEnv *env, jobject object,
jint maxProximityCharsSize, jint displayWidth, jint displayHeight, jint gridWidth,
jint gridHeight, jintArray proximityCharsArray) {
jint gridHeight, jintArray proximityCharsArray, jint keyCount,
jintArray keyXCoordinateArray, jintArray keyYCoordinateArray, jintArray keyWidthArray,
jintArray keyHeightArray, jintArray keyCharCodeArray) {
jint* proximityChars = env->GetIntArrayElements(proximityCharsArray, NULL);
jint* keyXCoordinates = env->GetIntArrayElements(keyXCoordinateArray, NULL);
jint* keyYCoordinates = env->GetIntArrayElements(keyYCoordinateArray, NULL);
jint* keyWidths = env->GetIntArrayElements(keyWidthArray, NULL);
jint* keyHeights = env->GetIntArrayElements(keyHeightArray, NULL);
jint* keyCharCodes = env->GetIntArrayElements(keyCharCodeArray, NULL);
ProximityInfo *proximityInfo = new ProximityInfo(maxProximityCharsSize, displayWidth,
displayHeight, gridWidth, gridHeight, (const uint32_t *)proximityChars);
displayHeight, gridWidth, gridHeight, (const uint32_t *)proximityChars,
keyCount, (const int32_t *)keyXCoordinates, (const int32_t *)keyYCoordinates,
(const int32_t *)keyWidths, (const int32_t *)keyHeights, (const int32_t *)keyCharCodes);
env->ReleaseIntArrayElements(keyCharCodeArray, keyCharCodes, 0);
env->ReleaseIntArrayElements(keyHeightArray, keyHeights, 0);
env->ReleaseIntArrayElements(keyWidthArray, keyWidths, 0);
env->ReleaseIntArrayElements(keyYCoordinateArray, keyYCoordinates, 0);
env->ReleaseIntArrayElements(keyXCoordinateArray, keyXCoordinates, 0);
env->ReleaseIntArrayElements(proximityCharsArray, proximityChars, 0);
return (jint)proximityInfo;
}
@ -45,7 +59,7 @@ static void latinime_Keyboard_release(JNIEnv *env, jobject object, jint proximit
}
static JNINativeMethod sKeyboardMethods[] = {
{"setProximityInfoNative", "(IIIII[I)I", (void*)latinime_Keyboard_setProximityInfo},
{"setProximityInfoNative", "(IIIII[II[I[I[I[I[I)I", (void*)latinime_Keyboard_setProximityInfo},
{"releaseProximityInfoNative", "(I)V", (void*)latinime_Keyboard_release}
};

61
native/src/defines_touch_position_correction.h Normal file
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@ -0,0 +1,61 @@
/*
**
** Copyright 2011, 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_DEFINES_TOUCH_POSITION_CORRECTION_H
#define LATINIME_DEFINES_TOUCH_POSITION_CORRECTION_H
#define OUTER_SWEET_SPOT_RADIUS_RATIO 1.3
static const char* TOUCH_POSITION_CORRECTION_GROUPS[] = {
"qwertyuiop",
"a",
"sdfghjk",
"l",
"zxcvbnm",
};
// (center X) / (key width)
static const float RELATIVE_TOUCH_CENTER_X[] = {
0, // qwertyuiop
-0.26871, // a
0, // sdfghjk
0.028050, // l
0, // zxcvbnm
};
// (center Y) / (key height)
static const float RELATIVE_TOUCH_CENTER_Y[] = {
0.192088, // qwertyuiop
0.214100, // a
0.216640, // sdfghjk
0.233288, // l
0.286598, // zxcvbnm
};
// (sweet spot radius) / ((key width) + (key height))
static const float SWEET_SPOT_RADIUS[] = {
0.148955, // qwertyuiop
0.185437, // a
0.145522, // sdfghjk
0.156882, // l
0.144211, // zxcvbnm
};
#define CORRECTION_GROUP_COUNT \
((int)(sizeof(TOUCH_POSITION_CORRECTION_GROUPS) / sizeof(TOUCH_POSITION_CORRECTION_GROUPS[0])))
#endif // LATINIME_DEFINES_TOUCH_POSITION_CORRECTION_H

51
native/src/proximity_info.cpp
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@ -14,11 +14,13 @@
* limitations under the License.
*/
#include <assert.h>
#include <stdio.h>
#include <string.h>
#define LOG_TAG "LatinIME: proximity_info.cpp"
#include "defines_touch_position_correction.h"
#include "dictionary.h"
#include "proximity_info.h"
@ -26,17 +28,59 @@ namespace latinime {
ProximityInfo::ProximityInfo(const int maxProximityCharsSize, const int keyboardWidth,
const int keyboardHeight, const int gridWidth, const int gridHeight,
const uint32_t *proximityCharsArray)
const uint32_t *proximityCharsArray, const int keyCount, const int32_t *keyXCoordinates,
const int32_t *keyYCoordinates, const int32_t *keyWidths, const int32_t *keyHeights,
const int32_t *keyCharCodes)
: MAX_PROXIMITY_CHARS_SIZE(maxProximityCharsSize), KEYBOARD_WIDTH(keyboardWidth),
KEYBOARD_HEIGHT(keyboardHeight), GRID_WIDTH(gridWidth), GRID_HEIGHT(gridHeight),
CELL_WIDTH((keyboardWidth + gridWidth - 1) / gridWidth),
CELL_HEIGHT((keyboardHeight + gridHeight - 1) / gridHeight) {
CELL_HEIGHT((keyboardHeight + gridHeight - 1) / gridHeight),
KEY_COUNT(min(keyCount, MAX_KEY_COUNT_IN_A_KEYBOARD)) {
const int len = GRID_WIDTH * GRID_HEIGHT * MAX_PROXIMITY_CHARS_SIZE;
mProximityCharsArray = new uint32_t[len];
if (DEBUG_PROXIMITY_INFO) {
LOGI("Create proximity info array %d", len);
}
memcpy(mProximityCharsArray, proximityCharsArray, len * sizeof(mProximityCharsArray[0]));
if (KEY_COUNT > 0) {
if (DEBUG_PROXIMITY_INFO) {
LOGI("Create key coordinate array %d", keyCount);
}
memcpy(mKeyXCoordinates, keyXCoordinates, KEY_COUNT * sizeof(mKeyXCoordinates[0]));
memcpy(mKeyYCoordinates, keyYCoordinates, KEY_COUNT * sizeof(mKeyYCoordinates[0]));
memcpy(mKeyWidths, keyWidths, KEY_COUNT * sizeof(mKeyWidths[0]));
memcpy(mKeyHeights, keyHeights, KEY_COUNT * sizeof(mKeyHeights[0]));
memcpy(mKeyCharCodes, keyCharCodes, KEY_COUNT * sizeof(mKeyCharCodes[0]));
}
initializeCodeToGroup();
initializeCodeToKeyIndex();
}
// Build the reversed look up table from the char code to the index in its group.
// see TOUCH_POSITION_CORRECTION_GROUPS
void ProximityInfo::initializeCodeToGroup() {
memset(mCodeToGroup, -1, (MAX_GROUPED_CHAR_CODE + 1) * sizeof(mCodeToGroup[0]));
for (int i = 0; i < CORRECTION_GROUP_COUNT; ++i) {
const char *group = TOUCH_POSITION_CORRECTION_GROUPS[i];
for (int j = 0; group[j]; ++j) {
const int code = group[j];
if (0 <= code && code <= MAX_GROUPED_CHAR_CODE)
mCodeToGroup[code] = i;
}
}
}
// Build the reversed look up table from the char code to the index in mKeyXCoordinates,
// mKeyYCoordinates, mKeyWidths, mKeyHeights, mKeyCharCodes.
void ProximityInfo::initializeCodeToKeyIndex() {
memset(mCodeToKeyIndex, -1, (MAX_GROUPED_CHAR_CODE + 1) * sizeof(mCodeToKeyIndex[0]));
for (int i = 0; i < KEY_COUNT; ++i) {
const int code = mKeyCharCodes[i];
if (0 <= code && code <= MAX_GROUPED_CHAR_CODE)
mCodeToKeyIndex[code] = i;
}
}
ProximityInfo::~ProximityInfo() {
@ -162,4 +206,7 @@ bool ProximityInfo::sameAsTyped(const unsigned short *word, int length) const {
return true;
}
const int ProximityInfo::MAX_KEY_COUNT_IN_A_KEYBOARD;
const int ProximityInfo::MAX_GROUPED_CHAR_CODE;
} // namespace latinime

19
native/src/proximity_info.h
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@ -35,7 +35,9 @@ public:
ProximityInfo(const int maxProximityCharsSize, const int keyboardWidth,
const int keybaordHeight, const int gridWidth, const int gridHeight,
const uint32_t *proximityCharsArray);
const uint32_t *proximityCharsArray, const int keyCount, const int32_t *keyXCoordinates,
const int32_t *keyYCoordinates, const int32_t *keyWidths, const int32_t *keyHeights,
const int32_t *keyCharCodes);
~ProximityInfo();
bool hasSpaceProximity(const int x, const int y) const;
void setInputParams(const int* inputCodes, const int inputLength);
@ -51,7 +53,14 @@ public:
}
private:
// The max number of the keys in one keyboard layout
static const int MAX_KEY_COUNT_IN_A_KEYBOARD = 64;
// The upper limit of the char code in TOUCH_POSITION_CORRECTION_GROUP
static const int MAX_GROUPED_CHAR_CODE = 127;
int getStartIndexFromCoordinates(const int x, const int y) const;
void initializeCodeToGroup();
void initializeCodeToKeyIndex();
const int MAX_PROXIMITY_CHARS_SIZE;
const int KEYBOARD_WIDTH;
const int KEYBOARD_HEIGHT;
@ -59,10 +68,18 @@ private:
const int GRID_HEIGHT;
const int CELL_WIDTH;
const int CELL_HEIGHT;
const int KEY_COUNT;
const int *mInputCodes;
uint32_t *mProximityCharsArray;
int32_t mKeyXCoordinates[MAX_KEY_COUNT_IN_A_KEYBOARD];
int32_t mKeyYCoordinates[MAX_KEY_COUNT_IN_A_KEYBOARD];
int32_t mKeyWidths[MAX_KEY_COUNT_IN_A_KEYBOARD];
int32_t mKeyHeights[MAX_KEY_COUNT_IN_A_KEYBOARD];
int32_t mKeyCharCodes[MAX_KEY_COUNT_IN_A_KEYBOARD];
int mInputLength;
unsigned short mPrimaryInputWord[MAX_WORD_LENGTH_INTERNAL];
int mCodeToGroup[MAX_GROUPED_CHAR_CODE + 1];
int mCodeToKeyIndex[MAX_GROUPED_CHAR_CODE + 1];
};
} // namespace latinime