static int get_format(JNIEnv* env, InputStream* stream)
{
unsigned char temp[2];
int read = read_input_stream(env, stream, temp, 0, 2);
if (read == 2) {
#ifdef IMAGE_SUPPORT_JPEG
if (temp[0] == IMAGE_JPEG_MAGIC_NUMBER_0 && temp[1] == IMAGE_JPEG_MAGIC_NUMBER_1) {
return IMAGE_FORMAT_JPEG;
}
#endif
#ifdef IMAGE_SUPPORT_PNG
if (temp[0] == IMAGE_PNG_MAGIC_NUMBER_0 && temp[1] == IMAGE_PNG_MAGIC_NUMBER_1) {
return IMAGE_FORMAT_PNG;
}
#endif
#ifdef IMAGE_SUPPORT_GIF
if (temp[0] == IMAGE_GIF_MAGIC_NUMBER_0 && temp[1] == IMAGE_GIF_MAGIC_NUMBER_1) {
return IMAGE_FORMAT_GIF;
}
#endif
}
return IMAGE_FORMAT_UNKNOWN;
}
static void on_file_replace_ready (GObject *object, GAsyncResult *res, gpointer data)
{
GError *error = NULL;
GDownloadable *download = G_DOWNLOADABLE (data);
GioDownload *gio_download = GIO_DOWNLOAD (data);
g_assert (download != NULL);
gio_download->priv->output = g_file_replace_finish (G_FILE(object), res, &error);
// GFileOutputStream *out_stream = g_file_replace_finish (G_FILE(object), res, &error);
// gio_download->priv->output = g_buffered_output_stream_new_sized (G_OUTPUT_STREAM(out_stream),
// CHUNK_BUFF_SIZE);
handle_critical_error (error);
read_input_stream (download);
}
static void on_input_stream_read_ready (GObject * object, GAsyncResult * res, gpointer data)
{
GError * error = NULL;
GDownloadable *download = G_DOWNLOADABLE (data);
GioDownload *gio_download = GIO_DOWNLOAD (data);
g_assert (download != NULL);
gssize size = g_input_stream_read_finish (G_INPUT_STREAM(object), res, &error);
handle_critical_error (error);
if (size < 0) {
g_downloadable_set_status (download, G_DOWNLOADABLE_NETWORK_ERROR);
return;
}
if (size == 0 && download->priv->size == download->priv->downloaded_size) {
/* Download Completed */
write_chunks_to_output_stream (gio_download);
g_input_stream_close_async (G_INPUT_STREAM(gio_download->priv->input), G_PRIORITY_DEFAULT,
NULL, on_input_stream_close_ready, NULL);
g_output_stream_close_async (G_OUTPUT_STREAM(gio_download->priv->output), G_PRIORITY_DEFAULT,
NULL, on_output_stream_close_ready, NULL);
g_downloadable_set_status (download, G_DOWNLOADABLE_COMPLETED);
g_signal_emit_by_name (download, "download-completed");
return;
}
if (gio_download->priv->num_chunks == NUM_OF_CHUNKS) {
write_chunks_to_output_stream (gio_download);
gio_download->priv->num_chunks = 0;
}
MemChunk *chunk = mem_chunk_new_from_buffer (size, gio_download->priv->chunk_buff);
gio_download->priv->chunks = g_slist_prepend (gio_download->priv->chunks, chunk);
gio_download->priv->num_chunks++;
g_signal_emit_by_name (data, "download-progressed", size);
read_input_stream (download);
}
static void on_file_append_to_ready (GObject * object, GAsyncResult * res, gpointer data)
{
GError *error = NULL;
GDownloadable *download = G_DOWNLOADABLE (data);
GioDownload *gio_download = GIO_DOWNLOAD (data);
g_assert (download != NULL);
GFileOutputStream *out_stream = g_file_append_to_finish (G_FILE(object), res, &error);
handle_error (error);
if (out_stream != NULL) {
gio_download->priv->output = out_stream;
if (g_seekable_seek (G_SEEKABLE(gio_download->priv->input), download->priv->downloaded_size, G_SEEK_SET, NULL, NULL)) {
read_input_stream (download);
return;
}
}
g_file_replace_async (download->priv->local_file, NULL, FALSE, 0, G_PRIORITY_DEFAULT,
NULL, on_file_replace_ready, download);
}
