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https://github.com/shadowfacts/lwjgl2-arm64.git
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342 lines
11 KiB
Java
Executable file
342 lines
11 KiB
Java
Executable file
/*
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* Copyright (c) 2002-2004 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.lwjgl.opengl;
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/**
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* This is the Windows implementation of the Mouse.
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* @author elias_naur
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*/
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import java.nio.ByteBuffer;
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import java.nio.IntBuffer;
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import java.nio.CharBuffer;
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import org.lwjgl.LWJGLException;
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import org.lwjgl.LWJGLUtil;
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import org.lwjgl.BufferUtils;
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final class WindowsMouse {
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private final static int BUFFER_SIZE = 50;
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private final static int BUTTON_STATES_SIZE = 7;
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private final static int MOUSE_EVENT_SIZE = 5;
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private final static int DIMOFS_X = 0;
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private final static int DIMOFS_Y = 4;
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private final static int DIMOFS_Z = 8;
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private final static int DIMOFS_BUTTON0 = 12;
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private final static int DIMOFS_BUTTON1 = 13;
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private final static int DIMOFS_BUTTON2 = 14;
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private final static int DIMOFS_BUTTON3 = 15;
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private final long hwnd;
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private final WindowsDirectInput dinput;
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private final WindowsDirectInputDevice mouse;
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private final int mouse_button_count;
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private final boolean has_wheel;
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private final EventQueue event_queue = new EventQueue(MOUSE_EVENT_SIZE);
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/* Buffer to hold a DIMOUSESTATE */
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private final ByteBuffer mouse_state;
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private final IntBuffer temp_data_buffer;
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private final int[] mouse_event = new int[MOUSE_EVENT_SIZE];
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private boolean mouse_grabbed;
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private byte[] win32_message_button_states = new byte[BUTTON_STATES_SIZE];
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private int accum_dwheel;
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private int last_x;
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private int last_y;
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public WindowsMouse(WindowsDirectInput dinput, long hwnd) throws LWJGLException {
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this.hwnd = hwnd;
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this.dinput = dinput;
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try {
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mouse = dinput.createDevice(WindowsDirectInput.MOUSE_TYPE);
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try {
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mouse.setDataFormat(WindowsDirectInput.MOUSE_TYPE);
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mouse.setBufferSize(BUFFER_SIZE);
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if (!acquireNonExclusive())
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throw new LWJGLException("Failed to acquire mouse non-exclusive");
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} catch (LWJGLException e) {
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mouse.release();
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throw e;
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}
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} catch (LWJGLException e) {
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dinput.release();
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throw e;
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}
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MouseEnumerator enumerator = new MouseEnumerator();
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mouse.enumObjects(enumerator);
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this.mouse_button_count = Math.min(enumerator.getButtonCount(), 4);
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this.has_wheel = enumerator.hasWheel();
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mouse_state = BufferUtils.createByteBuffer(3*4 + 4);
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temp_data_buffer = BufferUtils.createIntBuffer(BUFFER_SIZE*2);
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}
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public boolean hasWheel() {
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return has_wheel;
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}
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public int getButtonCount() {
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return mouse_button_count;
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}
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private boolean acquire(int flags) {
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try {
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mouse.setCooperateLevel(hwnd, flags);
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mouse.acquire();
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return true;
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} catch (LWJGLException e) {
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LWJGLUtil.log("Failed to acquire mouse: " + e);
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return false;
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}
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}
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private boolean acquireNonExclusive() {
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return acquire(WindowsDirectInputDevice.DISCL_NONEXCLUSIVE | WindowsDirectInputDevice.DISCL_FOREGROUND) ||
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acquire(WindowsDirectInputDevice.DISCL_NONEXCLUSIVE | WindowsDirectInputDevice.DISCL_BACKGROUND);
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}
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public void destroy() {
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mouse.unacquire();
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mouse.release();
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dinput.release();
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}
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public void poll(IntBuffer coord_buffer, ByteBuffer buttons) {
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int ret = mouse.acquire();
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if (ret != WindowsDirectInput.DI_OK && ret != WindowsDirectInput.DI_NOEFFECT)
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return;
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mouse.poll();
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for (int i = 0; i < coord_buffer.remaining(); i++)
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coord_buffer.put(coord_buffer.position() + i, 0);
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mouse_state.clear();
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ret = mouse.getDeviceState(mouse_state);
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int mouse_state_lx = mouse_state.getInt();
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int mouse_state_ly = mouse_state.getInt();
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int mouse_state_lz = mouse_state.getInt();
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int num_buttons = mouse_button_count;
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if (mouse_grabbed || ret == WindowsDirectInput.DI_OK) {
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if (ret != WindowsDirectInput.DI_OK) {
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LWJGLUtil.log("Error getting mouse state: (0x" + Integer.toHexString(ret) + ")");
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return;
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}
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coord_buffer.put(coord_buffer.position() + 2, mouse_state_lz);
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if (num_buttons > buttons.remaining())
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num_buttons = buttons.remaining();
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for (int j = 0; j < num_buttons; j++) {
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byte button_state = (mouse_state.get() & 0x80) != 0 ? (byte)1 : (byte)0;
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buttons.put(buttons.position() + j, button_state);
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// track the button state in the windows message buffer state array
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// to get accurate button information when releasing a grab
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win32_message_button_states[j] = button_state;
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}
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} else {
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coord_buffer.put(coord_buffer.position() + 2, accum_dwheel);
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if (num_buttons > win32_message_button_states.length)
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num_buttons = win32_message_button_states.length;
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for (int j = 0; j < num_buttons; j++) {
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buttons.put(buttons.position() + j, win32_message_button_states[j]);
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}
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}
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accum_dwheel = 0;
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if (mouse_grabbed) {
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coord_buffer.put(coord_buffer.position() + 0, mouse_state_lx);
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coord_buffer.put(coord_buffer.position() + 1, -mouse_state_ly);
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} else {
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coord_buffer.put(coord_buffer.position() + 0, last_x);
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coord_buffer.put(coord_buffer.position() + 1, last_y);
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}
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}
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private boolean putMouseEventWithCoords(int button, int state, int coord1, int coord2, int dz) {
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mouse_event[0] = button;
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mouse_event[1] = state;
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mouse_event[2] = coord1;
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mouse_event[3] = coord2;
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mouse_event[4] = dz;
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return event_queue.putEvent(mouse_event);
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}
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private boolean putMouseEvent(int button, int state, int dz) {
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if (mouse_grabbed)
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return putMouseEventWithCoords(button, state, 0, 0, dz);
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else
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return putMouseEventWithCoords(button, state, last_x, last_y, dz);
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}
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private void copyDXEvents(IntBuffer buffer) {
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int buffer_index = 0;
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int dx = 0, dy = 0, dwheel = 0;
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int button_state;
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int i;
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while (buffer.hasRemaining()) {
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int dwOfs = buffer.get();
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int dwData = buffer.get();
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button_state = (dwData & 0x80) != 0 ? 1 : 0;
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switch (dwOfs) {
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case DIMOFS_BUTTON0:
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putMouseEventWithCoords(0, button_state, dx, -dy, dwheel);
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dx = dy = dwheel = 0;
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break;
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case DIMOFS_BUTTON1:
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putMouseEventWithCoords(1, button_state, dx, -dy, dwheel);
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dx = dy = dwheel = 0;
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break;
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case DIMOFS_BUTTON2:
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putMouseEventWithCoords(2, button_state, dx, -dy, dwheel);
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dx = dy = dwheel = 0;
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break;
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case DIMOFS_BUTTON3:
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putMouseEventWithCoords(3, button_state, dx, -dy, dwheel);
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dx = dy = dwheel = 0;
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break;
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case DIMOFS_X:
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dx += dwData;
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break;
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case DIMOFS_Y:
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dy += dwData;
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break;
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case DIMOFS_Z:
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dwheel += dwData;
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break;
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}
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}
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if (dx != 0 || dy != 0 || dwheel != 0)
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putMouseEventWithCoords(-1, 0, dx, -dy, dwheel);
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}
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private void readDXBuffer() {
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int ret = mouse.acquire();
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if (ret != WindowsDirectInput.DI_OK && ret != WindowsDirectInput.DI_NOEFFECT)
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return;
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mouse.poll();
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temp_data_buffer.clear();
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ret = mouse.getDeviceData(temp_data_buffer);
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if (ret == WindowsDirectInput.DI_OK) {
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if (mouse_grabbed) {
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temp_data_buffer.flip();
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copyDXEvents(temp_data_buffer);
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}
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} else if (ret == WindowsDirectInput.DI_BUFFEROVERFLOW) {
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LWJGLUtil.log("Mouse buffer overflowed");
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} else if (ret == WindowsDirectInput.DIERR_INPUTLOST) {
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LWJGLUtil.log("Mouse input lost");
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} else if (ret == WindowsDirectInput.DIERR_NOTACQUIRED) {
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LWJGLUtil.log("Mouse not acquired");
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} else {
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LWJGLUtil.log("unknown mouse error (" + Integer.toHexString(ret) + ")");
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}
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}
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public int read(IntBuffer buffer) {
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readDXBuffer();
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return event_queue.copyEvents(buffer);
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}
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public void grab(boolean grab) {
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if(grab) {
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if (!mouse_grabbed) {
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// flush DX event buffer
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readDXBuffer();
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mouse_grabbed = true;
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mouse.unacquire();
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if (!acquire(WindowsDirectInputDevice.DISCL_EXCLUSIVE | WindowsDirectInputDevice.DISCL_FOREGROUND))
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LWJGLUtil.log("Failed to reset cooperative mode");
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}
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} else {
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if (mouse_grabbed) {
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mouse_grabbed = false;
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mouse.unacquire();
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acquireNonExclusive();
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}
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}
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event_queue.clearEvents();
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}
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public void handleMouseScrolled(int event_dwheel) {
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accum_dwheel += event_dwheel;
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putMouseEvent(-1, 0, event_dwheel);
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}
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public void handleMouseMoved(int x, int y) {
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int dx;
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int dy;
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dx = x - last_x;
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dy = y - last_y;
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last_x = x;
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last_y = y;
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if (mouse_grabbed) {
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putMouseEventWithCoords(-1, 0, dx, dy, 0);
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} else {
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putMouseEventWithCoords(-1, 0, x, y, 0);
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}
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}
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public void handleMouseButton(int button, int state) {
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putMouseEvent(button, state, 0);
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if (button < BUTTON_STATES_SIZE)
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win32_message_button_states[button] = state != 0 ? (byte)1 : (byte)0;
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}
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private static class MouseEnumerator implements WindowsDirectInputDeviceObjectCallback {
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private int button_count;
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private boolean has_wheel;
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public int getButtonCount() {
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return button_count;
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}
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public boolean hasWheel() {
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return has_wheel;
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}
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public boolean nextObject(int type, String name) {
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LWJGLUtil.log("Found mouse object: " + name);
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switch (type) {
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case WindowsDirectInputDevice.GUID_ZAxis:
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has_wheel = true;
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break;
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case WindowsDirectInputDevice.GUID_Button:
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button_count++;
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break;
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default:
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break;
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}
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return true;
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}
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}
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}
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