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Start using JNI's Get<Type>ArrayRegion()

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Change-Id: Iaa1014efe639dd79540835b0d5201093dbd8dab8
This commit is contained in:
Ken Wakasa 2012-08-08 20:43:47 +09:00
parent 181567f9c7
commit bb005f787f
4 changed files with 48 additions and 90 deletions
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42
native/jni/com_android_inputmethod_keyboard_ProximityInfo.cpp
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@ -25,43 +25,21 @@ namespace latinime {
static jlong latinime_Keyboard_setProximityInfo(JNIEnv *env, jobject object,
jstring localeJStr, jint maxProximityCharsSize, jint displayWidth, jint displayHeight,
jint gridWidth, jint gridHeight, jint mostCommonkeyWidth, jintArray proximityCharsArray,
jint keyCount, jintArray keyXCoordinateArray, jintArray keyYCoordinateArray,
jintArray keyWidthArray, jintArray keyHeightArray, jintArray keyCharCodeArray,
jfloatArray sweetSpotCenterXArray, jfloatArray sweetSpotCenterYArray,
jfloatArray sweetSpotRadiusArray) {
jint gridWidth, jint gridHeight, jint mostCommonkeyWidth, jintArray proximityChars,
jint keyCount, jintArray keyXCoordinates, jintArray keyYCoordinates,
jintArray keyWidths, jintArray keyHeights, jintArray keyCharCodes,
jfloatArray sweetSpotCenterXs, jfloatArray sweetSpotCenterYs, jfloatArray sweetSpotRadii) {
const char *localeCStr = env->GetStringUTFChars(localeJStr, 0);
jint *proximityChars = env->GetIntArrayElements(proximityCharsArray, 0);
jint *keyXCoordinates = safeGetIntArrayElements(env, keyXCoordinateArray);
jint *keyYCoordinates = safeGetIntArrayElements(env, keyYCoordinateArray);
jint *keyWidths = safeGetIntArrayElements(env, keyWidthArray);
jint *keyHeights = safeGetIntArrayElements(env, keyHeightArray);
jint *keyCharCodes = safeGetIntArrayElements(env, keyCharCodeArray);
jfloat *sweetSpotCenterXs = safeGetFloatArrayElements(env, sweetSpotCenterXArray);
jfloat *sweetSpotCenterYs = safeGetFloatArrayElements(env, sweetSpotCenterYArray);
jfloat *sweetSpotRadii = safeGetFloatArrayElements(env, sweetSpotRadiusArray);
ProximityInfo *proximityInfo = new ProximityInfo(
localeCStr, maxProximityCharsSize, displayWidth, displayHeight, gridWidth, gridHeight,
mostCommonkeyWidth, (const int32_t*)proximityChars, keyCount,
(const int32_t*)keyXCoordinates, (const int32_t*)keyYCoordinates,
(const int32_t*)keyWidths, (const int32_t*)keyHeights, (const int32_t*)keyCharCodes,
(const float*)sweetSpotCenterXs, (const float*)sweetSpotCenterYs,
(const float*)sweetSpotRadii);
safeReleaseFloatArrayElements(env, sweetSpotRadiusArray, sweetSpotRadii);
safeReleaseFloatArrayElements(env, sweetSpotCenterYArray, sweetSpotCenterYs);
safeReleaseFloatArrayElements(env, sweetSpotCenterXArray, sweetSpotCenterXs);
safeReleaseIntArrayElements(env, keyCharCodeArray, keyCharCodes);
safeReleaseIntArrayElements(env, keyHeightArray, keyHeights);
safeReleaseIntArrayElements(env, keyWidthArray, keyWidths);
safeReleaseIntArrayElements(env, keyYCoordinateArray, keyYCoordinates);
safeReleaseIntArrayElements(env, keyXCoordinateArray, keyXCoordinates);
env->ReleaseIntArrayElements(proximityCharsArray, proximityChars, 0);
ProximityInfo *proximityInfo = new ProximityInfo(env, localeCStr, maxProximityCharsSize,
displayWidth, displayHeight, gridWidth, gridHeight, mostCommonkeyWidth, proximityChars,
keyCount, keyXCoordinates, keyYCoordinates, keyWidths, keyHeights, keyCharCodes,
sweetSpotCenterXs, sweetSpotCenterYs, sweetSpotRadii);
env->ReleaseStringUTFChars(localeJStr, localeCStr);
return (jlong)proximityInfo;
return reinterpret_cast<jlong>(proximityInfo);
}
static void latinime_Keyboard_release(JNIEnv *env, jobject object, jlong proximityInfo) {
ProximityInfo *pi = (ProximityInfo*)proximityInfo;
ProximityInfo *pi = reinterpret_cast<ProximityInfo*>(proximityInfo);
if (!pi) return;
delete pi;
}

27
native/jni/jni_common.h
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@ -24,32 +24,5 @@ namespace latinime {
int registerNativeMethods(JNIEnv *env, const char *className, JNINativeMethod *methods,
int numMethods);
inline jint *safeGetIntArrayElements(JNIEnv *env, jintArray jArray) {
if (jArray) {
return env->GetIntArrayElements(jArray, 0);
} else {
return 0;
}
}
inline jfloat *safeGetFloatArrayElements(JNIEnv *env, jfloatArray jArray) {
if (jArray) {
return env->GetFloatArrayElements(jArray, 0);
} else {
return 0;
}
}
inline void safeReleaseIntArrayElements(JNIEnv *env, jintArray jArray, jint *cArray) {
if (jArray) {
env->ReleaseIntArrayElements(jArray, cArray, 0);
}
}
inline void safeReleaseFloatArrayElements(JNIEnv *env, jfloatArray jArray, jfloat *cArray) {
if (jArray) {
env->ReleaseFloatArrayElements(jArray, cArray, 0);
}
}
} // namespace latinime
#endif // LATINIME_JNI_COMMON_H

56
native/jni/src/proximity_info.cpp
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@ -24,25 +24,36 @@
#include "additional_proximity_chars.h"
#include "char_utils.h"
#include "defines.h"
#include "jni.h"
#include "proximity_info.h"
namespace latinime {
inline void copyOrFillZero(void *to, const void *from, size_t size) {
if (from) {
memcpy(to, from, size);
} else {
memset(to, 0, size);
static inline void safeGetOrFillZeroIntArrayRegion(JNIEnv *env, jintArray jArray, jsize len,
jint *buffer) {
if (jArray && buffer) {
env->GetIntArrayRegion(jArray, 0, len, buffer);
} else if (buffer) {
memset(buffer, 0, len);
}
}
ProximityInfo::ProximityInfo(const char *localeCStr, const int maxProximityCharsSize,
static inline void safeGetOrFillZeroFloatArrayRegion(JNIEnv *env, jfloatArray jArray, jsize len,
jfloat *buffer) {
if (jArray && buffer) {
env->GetFloatArrayRegion(jArray, 0, len, buffer);
} else if (buffer) {
memset(buffer, 0, len);
}
}
ProximityInfo::ProximityInfo(JNIEnv *env, const char *localeCStr, const int maxProximityCharsSize,
const int keyboardWidth, const int keyboardHeight, const int gridWidth,
const int gridHeight, const int mostCommonKeyWidth,
const int32_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, const float *sweetSpotCenterXs, const float *sweetSpotCenterYs,
const float *sweetSpotRadii)
const int gridHeight, const int mostCommonKeyWidth, const jintArray proximityChars,
const int keyCount, const jintArray keyXCoordinates, const jintArray keyYCoordinates,
const jintArray keyWidths, const jintArray keyHeights, const jintArray keyCharCodes,
const jfloatArray sweetSpotCenterXs, const jfloatArray sweetSpotCenterYs,
const jfloatArray sweetSpotRadii)
: MAX_PROXIMITY_CHARS_SIZE(maxProximityCharsSize), KEYBOARD_WIDTH(keyboardWidth),
KEYBOARD_HEIGHT(keyboardHeight), GRID_WIDTH(gridWidth), GRID_HEIGHT(gridHeight),
MOST_COMMON_KEY_WIDTH_SQUARE(mostCommonKeyWidth * mostCommonKeyWidth),
@ -58,20 +69,15 @@ ProximityInfo::ProximityInfo(const char *localeCStr, const int maxProximityChars
AKLOGI("Create proximity info array %d", proximityGridLength);
}
mProximityCharsArray = new int32_t[proximityGridLength];
memcpy(mProximityCharsArray, proximityCharsArray,
proximityGridLength * sizeof(mProximityCharsArray[0]));
copyOrFillZero(mKeyXCoordinates, keyXCoordinates, KEY_COUNT * sizeof(mKeyXCoordinates[0]));
copyOrFillZero(mKeyYCoordinates, keyYCoordinates, KEY_COUNT * sizeof(mKeyYCoordinates[0]));
copyOrFillZero(mKeyWidths, keyWidths, KEY_COUNT * sizeof(mKeyWidths[0]));
copyOrFillZero(mKeyHeights, keyHeights, KEY_COUNT * sizeof(mKeyHeights[0]));
copyOrFillZero(mKeyCharCodes, keyCharCodes, KEY_COUNT * sizeof(mKeyCharCodes[0]));
copyOrFillZero(mSweetSpotCenterXs, sweetSpotCenterXs,
KEY_COUNT * sizeof(mSweetSpotCenterXs[0]));
copyOrFillZero(mSweetSpotCenterYs, sweetSpotCenterYs,
KEY_COUNT * sizeof(mSweetSpotCenterYs[0]));
copyOrFillZero(mSweetSpotRadii, sweetSpotRadii, KEY_COUNT * sizeof(mSweetSpotRadii[0]));
safeGetOrFillZeroIntArrayRegion(env, proximityChars, proximityGridLength, mProximityCharsArray);
safeGetOrFillZeroIntArrayRegion(env, keyXCoordinates, KEY_COUNT, mKeyXCoordinates);
safeGetOrFillZeroIntArrayRegion(env, keyYCoordinates, KEY_COUNT, mKeyYCoordinates);
safeGetOrFillZeroIntArrayRegion(env, keyWidths, KEY_COUNT, mKeyWidths);
safeGetOrFillZeroIntArrayRegion(env, keyHeights, KEY_COUNT, mKeyHeights);
safeGetOrFillZeroIntArrayRegion(env, keyCharCodes, KEY_COUNT, mKeyCharCodes);
safeGetOrFillZeroFloatArrayRegion(env, sweetSpotCenterXs, KEY_COUNT, mSweetSpotCenterXs);
safeGetOrFillZeroFloatArrayRegion(env, sweetSpotCenterYs, KEY_COUNT, mSweetSpotCenterYs);
safeGetOrFillZeroFloatArrayRegion(env, sweetSpotRadii, KEY_COUNT, mSweetSpotRadii);
initializeCodeToKeyIndex();
}

13
native/jni/src/proximity_info.h
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@ -21,6 +21,7 @@
#include <string>
#include "defines.h"
#include "jni.h"
namespace latinime {
@ -28,13 +29,13 @@ class Correction;
class ProximityInfo {
public:
ProximityInfo(const char *localeCStr, const int maxProximityCharsSize,
ProximityInfo(JNIEnv *env, const char *localeCStr, const int maxProximityCharsSize,
const int keyboardWidth, const int keyboardHeight, const int gridWidth,
const int gridHeight, const int mostCommonkeyWidth,
const int32_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, const float *sweetSpotCenterXs,
const float *sweetSpotCenterYs, const float *sweetSpotRadii);
const int gridHeight, const int mostCommonKeyWidth, const jintArray proximityChars,
const int keyCount, const jintArray keyXCoordinates, const jintArray keyYCoordinates,
const jintArray keyWidths, const jintArray keyHeights, const jintArray keyCharCodes,
const jfloatArray sweetSpotCenterXs, const jfloatArray sweetSpotCenterYs,
const jfloatArray sweetSpotRadii);
~ProximityInfo();
bool hasSpaceProximity(const int x, const int y) const;
int getNormalizedSquaredDistance(const int inputIndex, const int proximityIndex) const;