88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (c) 2010 Thomas Martitz
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <jni.h>
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#include <stdbool.h>
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#include "config.h"
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#include "kernel.h"
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#include "system.h"
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#include "touchscreen.h"
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static long last_touch;
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static int last_y, last_x;
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static enum {
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STATE_UNKNOWN,
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STATE_UP,
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STATE_DOWN,
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} last_state = STATE_UNKNOWN;
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/*
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* this writes in an interrupt-like fashion the last pixel coordinates
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* that the user pressed on the screen */
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JNIEXPORT void JNICALL
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Java_org_rockbox_RockboxFramebuffer_pixelHandler(JNIEnv*env, jobject this,
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int x, int y)
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{
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(void)env;
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(void)this;
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last_x = x;
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last_y = y;
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last_touch = current_tick;
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}
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/*
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* this notifies us in an interrupt-like fashion whether the user just
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* began or stopped the touch action */
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JNIEXPORT void JNICALL
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Java_org_rockbox_RockboxFramebuffer_touchHandler(JNIEnv*env, jobject this,
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int down)
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{
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(void)env;
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(void)this;
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if (down)
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last_state = STATE_DOWN;
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else
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last_state = STATE_UP;
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}
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void button_init_device(void)
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{
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last_touch = current_tick;
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}
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int button_read_device(int *data)
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{
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/* get grid button/coordinates based on the current touchscreen mode */
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int btn = touchscreen_to_pixels(last_x, last_y, data);
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if (last_state == STATE_DOWN)
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{
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return btn;
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}
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else
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{
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*data = last_x = last_y = 0;
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return 0;
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}
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}
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