package org.hedgewars.hedgeroid.frontlib;

import com.sun.jna.DefaultTypeMapper;

import com.sun.jna.FromNativeContext;

import com.sun.jna.ToNativeContext;

import com.sun.jna.TypeConverter;

import com.sun.jna.TypeMapper;

class AndroidTypeMapper extends DefaultTypeMapper {

	static final int NATIVE_INT_SIZE = 4;

	static final int NATIVE_SIZE_T_SIZE = 4;

	static final int NATIVE_BOOL_SIZE = 1;

    public static final TypeMapper INSTANCE = new AndroidTypeMapper();

    protected AndroidTypeMapper() {

        addTypeConverter(Boolean.class, new BooleanConverter());

        addTypeConverter(NativeSizeT.class, new SizeTConverter());

    }

    private static final class BooleanConverter implements TypeConverter {

    	public Class<Byte> nativeType() {

    		return Byte.class;

    	}

    	public Object fromNative(Object value, FromNativeContext context) {

    		return ((Byte)value).intValue() != 0 ? Boolean.TRUE : Boolean.FALSE;

    	}

    	public Object toNative(Object value, ToNativeContext context) {

    		return Byte.valueOf((byte)(Boolean.TRUE.equals(value) ? 1 : 0));

    	}

    }

    private static final class SizeTConverter implements TypeConverter {

    	public Class<Integer> nativeType() {

    		return Integer.class;

    	}

    	public Object fromNative(Object value, FromNativeContext context) {

    		return NativeSizeT.valueOf((Integer)value);

    	}

    	public Object toNative(Object value, ToNativeContext context) {

    		return Integer.valueOf(value==null ? 0 : ((NativeSizeT)value).intValue());

    	}

    }

}