firmware/target/hosted/android/button-android.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (c) 2010 Thomas Martitz
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22
  23 #include <jni.h>
  24 #include <stdbool.h>
  25 #include "config.h"
  26 #include "kernel.h"
  27 #include "system.h"
  28
  29 /*
  30 extern jclass Framebuffer_class;
  31 extern jobject Framebuffer_instance;
  32 */
  33
  34
  35 static long last_touch;
  36 static int last_y, last_x;
  37 static enum {
  38     STATE_UNKNOWN,
  39     STATE_UP,
  40     STATE_DOWN,
  41 } last_state = STATE_UNKNOWN;
  42
  43 JNIEXPORT void JNICALL Java_org_rockbox_RockboxFramebuffer_pixelHandler(JNIEnv*env, jobject this, int x, int y)
  44 {
  45 /*
  46     LOG("%s(): %d:%d\n", __func__, x, y);
  47 */
  48     last_x = x;
  49     last_y = y;
  50     last_touch = current_tick;
  51 }
  52
  53 JNIEXPORT void JNICALL Java_org_rockbox_RockboxFramebuffer_touchHandler(JNIEnv*env, jobject this, int down)
  54 {
  55     if (down)
  56         last_state = STATE_DOWN;
  57     else
  58         last_state = STATE_UP;
  59 }
  60
  61 void button_init_device(void)
  62 {
  63     last_touch = current_tick;
  64 }
  65
  66 int button_read_device(int *data)
  67 {
  68     int btn = touchscreen_to_pixels(last_x, last_y, data);
  69     if (last_state == STATE_DOWN)
  70     {
  71         return btn;
  72     }
  73     else
  74     {
  75         *data = last_x = last_y = 0;
  76         return 0;
  77     }
  78 }