// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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.
package com.cloud.consoleproxy.vnc.packet.client;

import java.io.DataOutputStream;
import java.io.IOException;

import com.cloud.consoleproxy.vnc.RfbConstants;
import com.cloud.consoleproxy.vnc.VncScreenDescription;

public class SetPixelFormatPacket implements ClientPacket {

    private final int bitsPerPixel, depth, bigEndianFlag, trueColourFlag, redMax, greenMax, blueMax, redShift, greenShift, blueShift;

    private final VncScreenDescription screen;

    public SetPixelFormatPacket(VncScreenDescription screen, int bitsPerPixel, int depth, int bigEndianFlag, int trueColorFlag, int redMax, int greenMax, int blueMax,
            int redShift, int greenShift, int blueShift) {
        this.screen = screen;
        this.bitsPerPixel = bitsPerPixel;
        this.depth = depth;
        this.bigEndianFlag = bigEndianFlag;
        this.trueColourFlag = trueColorFlag;
        this.redMax = redMax;
        this.greenMax = greenMax;
        this.blueMax = blueMax;
        this.redShift = redShift;
        this.greenShift = greenShift;
        this.blueShift = blueShift;
    }

    @Override
    public void write(DataOutputStream os) throws IOException {
        os.writeByte(RfbConstants.CLIENT_SET_PIXEL_FORMAT);

        // Padding
        os.writeByte(0);
        os.writeByte(0);
        os.writeByte(0);

        // Send pixel format
        os.writeByte(bitsPerPixel);
        os.writeByte(depth);
        os.writeByte(bigEndianFlag);
        os.writeByte(trueColourFlag);
        os.writeShort(redMax);
        os.writeShort(greenMax);
        os.writeShort(blueMax);
        os.writeByte(redShift);
        os.writeByte(greenShift);
        os.writeByte(blueShift);

        // Padding
        os.writeByte(0);
        os.writeByte(0);
        os.writeByte(0);

        screen.setPixelFormat(bitsPerPixel, depth, bigEndianFlag, trueColourFlag, redMax, greenMax, blueMax, redShift, greenShift, blueShift);
    }

}