[jni] Added implementation for copying UInt8 buffer

Author: mta452

tehreer-android/src/main/jni/Raw.cpp

@@ -66,9 +66,22 @@ static void copyInt8Buffer(JNIEnv *env, jobject obj, jlong pointer, jbyteArray d
     env->SetByteArrayRegion(destination, start, length, buffer);
 }
 
-static void copyUInt16Buffer(JNIEnv *env, jobject obj, jlong pointer, jintArray destination, jint start, jint length)
+static void copyInt32Buffer(JNIEnv *env, jobject obj, jlong pointer, jfloatArray destination, jint start, jint length, jfloat scale)
 {
-    uint16_t *buffer = reinterpret_cast<uint16_t *>(pointer);
+    int32_t *buffer = reinterpret_cast<int32_t *>(pointer);
+    void *raw = env->GetPrimitiveArrayCritical(destination, nullptr);
+    jfloat *values = static_cast<jfloat *>(raw) + start;
+
+    for (jint i = 0; i < length; i++) {
+        values[i] = buffer[i] * scale;
+    }
+
+    env->ReleasePrimitiveArrayCritical(destination, raw, 0);
+}
+
+static void copyUInt8Buffer(JNIEnv *env, jobject obj, jlong pointer, jintArray destination, jint start, jint length)
+{
+    uint8_t *buffer = reinterpret_cast<uint8_t *>(pointer);
     void *raw = env->GetPrimitiveArrayCritical(destination, nullptr);
     jint *values = static_cast<jint *>(raw) + start;
 
@@ -79,9 +92,9 @@ static void copyUInt16Buffer(JNIEnv *env, jobject obj, jlong pointer, jintArray
     env->ReleasePrimitiveArrayCritical(destination, raw, 0);
 }
 
-static void copyUIntPtrBuffer(JNIEnv *env, jobject obj, jlong pointer, jintArray destination, jint start, jint length)
+static void copyUInt16Buffer(JNIEnv *env, jobject obj, jlong pointer, jintArray destination, jint start, jint length)
 {
-    size_t *buffer = reinterpret_cast<size_t *>(pointer);
+    uint16_t *buffer = reinterpret_cast<uint16_t *>(pointer);
     void *raw = env->GetPrimitiveArrayCritical(destination, nullptr);
     jint *values = static_cast<jint *>(raw) + start;
 
@@ -92,14 +105,14 @@ static void copyUIntPtrBuffer(JNIEnv *env, jobject obj, jlong pointer, jintArray
     env->ReleasePrimitiveArrayCritical(destination, raw, 0);
 }
 
-static void copyInt32Buffer(JNIEnv *env, jobject obj, jlong pointer, jfloatArray destination, jint start, jint length, jfloat scale)
+static void copyUIntPtrBuffer(JNIEnv *env, jobject obj, jlong pointer, jintArray destination, jint start, jint length)
 {
-    int32_t *buffer = reinterpret_cast<int32_t *>(pointer);
+    size_t *buffer = reinterpret_cast<size_t *>(pointer);
     void *raw = env->GetPrimitiveArrayCritical(destination, nullptr);
-    jfloat *values = static_cast<jfloat *>(raw) + start;
+    jint *values = static_cast<jint *>(raw) + start;
 
     for (jint i = 0; i < length; i++) {
-        values[i] = buffer[i] * scale;
+        values[i] = static_cast<jint>(buffer[i]);
     }
 
     env->ReleasePrimitiveArrayCritical(destination, raw, 0);
@@ -112,9 +125,10 @@ static JNINativeMethod JNI_METHODS[] = {
     { "getInt32Value", "(J)I", (void *)getInt32Value },
     { "getIntPtrValue", "(J)J", (void *)getIntPtrValue },
     { "copyInt8Buffer", "(J[BII)V", (void *)copyInt8Buffer },
+    { "copyInt32Buffer", "(J[FIIF)V", (void *)copyInt32Buffer },
+    { "copyUInt8Buffer", "(J[III)V", (void *)copyUInt8Buffer },
     { "copyUInt16Buffer", "(J[III)V", (void *)copyUInt16Buffer },
     { "copyUIntPtrBuffer", "(J[III)V", (void *)copyUIntPtrBuffer },
-    { "copyInt32Buffer", "(J[FIIF)V", (void *)copyInt32Buffer },
 };
 
 jint register_com_mta_tehreer_internal_Raw(JNIEnv *env)