1 files changed, 147 insertions, 0 deletions

diff --git a/apps/hosted/android/notification.c b/apps/hosted/android/notification.c
new file mode 100644
index 0000000000..443200698c
--- /dev/null
+++ b/apps/hosted/android/notification.c
@@ -0,0 +1,147 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   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);
+}