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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 <stdio.h>
#include <sys/mman.h>
#include "notification.h"
#include "appevents.h"
#include "metadata.h"
#include "albumart.h"
#include "misc.h"
#include "thread.h"
#include "debug.h"
extern JNIEnv *env_ptr;
extern jclass RockboxService_class;
extern jobject RockboxService_instance;
static jmethodID updateNotification, finishNotification;
static jobject NotificationManager_instance;
static jstring title, artist, album, albumart;
/* completely arbitrary dimensions. neded for find_albumart() */
static const struct dim dim = { .width = 200, .height = 200 };
#define NZV(a) (a && a[0])
/*
* notify about track change, and show track info */
static void track_changed_callback(void *param)
{
struct mp3entry* id3 = (struct mp3entry*)param;
JNIEnv e = *env_ptr;
if (id3)
{
/* passing NULL to DeleteLocalRef() is OK */
e->DeleteLocalRef(env_ptr, title);
e->DeleteLocalRef(env_ptr, artist);
e->DeleteLocalRef(env_ptr, album);
e->DeleteLocalRef(env_ptr, albumart);
char buf[200];
const char * ptitle = id3->title;
if (!ptitle && *id3->path)
{ /* pass the filename as title if id3 info isn't available */
ptitle = strip_extension(buf, sizeof(buf), strrchr(id3->path,'/') + 1);
}
title = e->NewStringUTF(env_ptr, ptitle ?: "");
artist = e->NewStringUTF(env_ptr, id3->artist ?: "");
album = e->NewStringUTF(env_ptr, id3->album ?: "");
albumart = NULL;
if (id3->embed_albumart && id3->albumart.type == AA_TYPE_JPG)
{ /* extract albumart to a temporary file using mmap() */
snprintf(buf, sizeof(buf), "/sdcard/rockbox/.temp_albumart_%d.jpg",
thread_self());
int dst_fd = creat(buf, 0666);
if (dst_fd >= 0)
{
int src_fd = open(id3->path, O_RDONLY);
off_t o_pos = id3->albumart.pos;
off_t pa_pos = o_pos & ~(sysconf(_SC_PAGE_SIZE) - 1);
if (src_fd >= 0)
{ /* align to page boundary */
int pos_diff = o_pos - pa_pos;
unsigned char* p = mmap(NULL, id3->albumart.size + pos_diff,
PROT_READ, MAP_SHARED, src_fd, pa_pos);
if (p != MAP_FAILED)
{
write(dst_fd, p + pos_diff, id3->albumart.size);
munmap(p, id3->albumart.size + pos_diff);
albumart = e->NewStringUTF(env_ptr, buf);
}
close(src_fd);
}
close(dst_fd);
}
}
else if (find_albumart(id3, buf, sizeof(buf), &dim))
{
albumart = e->NewStringUTF(env_ptr, buf);
}
e->CallVoidMethod(env_ptr, NotificationManager_instance,
updateNotification, title, artist, album, albumart);
}
}
/*
* notify about track finishing */
static void track_finished_callback(void *param)
{
(void)param;
JNIEnv e = *env_ptr;
e->CallVoidMethod(env_ptr, NotificationManager_instance,
finishNotification);
/* delete temporary albumart file */
char buf[MAX_PATH];
snprintf(buf, sizeof(buf), "/sdcard/rockbox/.temp_albumart_%d.jpg",
thread_self());
unlink(buf);
}
void notification_init(void)
{
JNIEnv e = *env_ptr;
jfieldID nNM = e->GetFieldID(env_ptr, RockboxService_class,
"fg_runner", "Lorg/rockbox/Helper/RunForegroundManager;");
NotificationManager_instance = e->GetObjectField(env_ptr,
RockboxService_instance, nNM);
if (NotificationManager_instance == NULL)
{
DEBUGF("Failed to get RunForegroundManager instance. Performance will be bad");
return;
}
jclass class = e->GetObjectClass(env_ptr, NotificationManager_instance);
updateNotification = e->GetMethodID(env_ptr, class, "updateNotification",
"(Ljava/lang/String;"
"Ljava/lang/String;"
"Ljava/lang/String;"
"Ljava/lang/String;)V");
finishNotification = e->GetMethodID(env_ptr, class, "finishNotification",
"()V");
add_event(PLAYBACK_EVENT_TRACK_CHANGE, false, track_changed_callback);
add_event(PLAYBACK_EVENT_TRACK_FINISH, false, track_finished_callback);
}
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