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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (c) 2010 Thomas Martitz
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <jni.h>
#include <stdbool.h>
#include "button.h"
#include "buttonmap.h"
#include "config.h"
#include "kernel.h"
#include "system.h"
#include "touchscreen.h"
static int last_y, last_x;
static int last_btns;
static enum {
STATE_UNKNOWN,
STATE_UP,
STATE_DOWN,
} last_state = STATE_UNKNOWN;
/*
* this notifies us in an interrupt-like fashion whether the user just
* began or stopped the touch action + where (pixel coordinates) */
JNIEXPORT void JNICALL
Java_org_rockbox_RockboxFramebuffer_touchHandler(JNIEnv*env, jobject this,
bool down, int x, int y)
{
(void)env;
(void)this;
if (down)
last_state = STATE_DOWN;
else
last_state = STATE_UP;
last_x = x;
last_y = y;
}
/*
* this writes in an interrupt-like fashion the button events that the user
* generated by pressing/releasing them to a variable */
JNIEXPORT bool JNICALL
Java_org_rockbox_RockboxFramebuffer_buttonHandler(JNIEnv*env, jobject this,
int keycode, bool state)
{
(void)env;
(void)this;
int button = key_to_button(keycode);
if (button == BUTTON_NONE)
return false;
if (state)
last_btns |= button;
else
last_btns &= ~button;
return true;
}
void button_init_device(void)
{
}
int button_read_device(int *data)
{
int btn = last_btns;
/* Get grid button/coordinates based on the current touchscreen mode
*
* Caveat: the caller seemingly depends on *data always being filled with
* the last known touchscreen position, so always call
* touchscreen_to_pixels() */
int touch = touchscreen_to_pixels(last_x, last_y, data);
if (last_state == STATE_DOWN)
btn |= touch;
return btn;
}
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