Make cover loading thread save (Just DB part!!!)
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commit
542c8a5b37
1 file changed
+117
-99
+117
-99
@@ -53,6 +53,8 @@ namespace Vocaluxe.Base
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private static string _CoverFilePath;
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private static string _CreditsRessourcesFilePath;
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//You have to lock all actions using cover connection or transaction, otherwhise order is not guaranted
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private static readonly object _CoverMutex = new object();
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private static SQLiteConnection _ConnectionCover;
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private static SQLiteTransaction _TransactionCover;
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@@ -77,7 +79,6 @@ namespace Vocaluxe.Base
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CLog.LogError("Error initializing Credits-DB", true, true);
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return false;
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}
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GC.Collect();
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return true;
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}
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@@ -1059,133 +1060,150 @@ namespace Vocaluxe.Base
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return false;
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}
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if (_ConnectionCover == null)
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lock (_CoverMutex)
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{
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_ConnectionCover = new SQLiteConnection {ConnectionString = "Data Source=" + _CoverFilePath};
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_ConnectionCover.Open();
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}
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using (var command = new SQLiteCommand(_ConnectionCover))
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{
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command.CommandText = "SELECT id, width, height FROM Cover WHERE [Path] = @path";
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command.Parameters.Add("@path", DbType.String, 0).Value = coverPath;
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SQLiteDataReader reader = command.ExecuteReader();
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if (reader != null && reader.HasRows)
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if (_ConnectionCover == null)
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{
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reader.Read();
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int id = reader.GetInt32(0);
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int w = reader.GetInt32(1);
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int h = reader.GetInt32(2);
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reader.Close();
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command.CommandText = "SELECT Data FROM CoverData WHERE CoverID = @id";
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command.Parameters.Add("@id", DbType.Int32).Value = id;
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reader = command.ExecuteReader();
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if (reader.HasRows)
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{
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reader.Read();
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byte[] data = _GetBytes(reader);
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reader.Dispose();
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tex = CDraw.EnqueueTexture(w, h, data);
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return true;
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}
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_ConnectionCover = new SQLiteConnection {ConnectionString = "Data Source=" + _CoverFilePath};
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_ConnectionCover.Open();
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}
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else
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using (var command = new SQLiteCommand(_ConnectionCover))
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{
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if (reader != null)
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reader.Close();
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if (_TransactionCover == null)
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_TransactionCover = _ConnectionCover.BeginTransaction();
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Bitmap origin;
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try
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{
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origin = new Bitmap(coverPath);
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}
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catch (Exception)
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{
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CLog.LogError("Error loading Texture: " + coverPath);
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return false;
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}
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int w = maxSize;
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int h = maxSize;
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byte[] data;
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try
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{
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if (origin.Width >= origin.Height && origin.Width > w)
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h = (int)Math.Round((float)w / origin.Width * origin.Height);
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else if (origin.Height > origin.Width && origin.Height > h)
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w = (int)Math.Round((float)h / origin.Height * origin.Width);
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using (var bmp = new Bitmap(w, h))
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{
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using (Graphics g = Graphics.FromImage(bmp))
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g.DrawImage(origin, new Rectangle(0, 0, w, h));
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data = new byte[w * h * 4];
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BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
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Marshal.Copy(bmpData.Scan0, data, 0, w * h * 4);
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bmp.UnlockBits(bmpData);
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}
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}
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finally
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{
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origin.Dispose();
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}
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tex = CDraw.EnqueueTexture(w, h, data);
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command.CommandText = "INSERT INTO Cover (Path, width, height) VALUES (@path, @w, @h)";
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command.Parameters.Add("@w", DbType.Int32).Value = w;
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command.Parameters.Add("@h", DbType.Int32).Value = h;
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command.CommandText = "SELECT id, width, height FROM Cover WHERE [Path] = @path";
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command.Parameters.Add("@path", DbType.String, 0).Value = coverPath;
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command.ExecuteNonQuery();
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command.CommandText = "SELECT id FROM Cover WHERE [Path] = @path";
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command.Parameters.Add("@path", DbType.String, 0).Value = coverPath;
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reader = command.ExecuteReader();
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SQLiteDataReader reader = command.ExecuteReader();
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if (reader != null)
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if (reader != null && reader.HasRows)
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{
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reader.Read();
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int id = reader.GetInt32(0);
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reader.Dispose();
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command.CommandText = "INSERT INTO CoverData (CoverID, Data) VALUES (@id, @data)";
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int w = reader.GetInt32(1);
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int h = reader.GetInt32(2);
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reader.Close();
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command.CommandText = "SELECT Data FROM CoverData WHERE CoverID = @id";
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command.Parameters.Add("@id", DbType.Int32).Value = id;
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command.Parameters.Add("@data", DbType.Binary, 20).Value = data;
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command.ExecuteReader();
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return true;
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reader = command.ExecuteReader();
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if (reader.HasRows)
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{
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reader.Read();
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byte[] data = _GetBytes(reader);
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reader.Dispose();
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tex = CDraw.EnqueueTexture(w, h, data);
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return true;
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}
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}
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else
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{
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if (reader != null)
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reader.Close();
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if (_TransactionCover == null)
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_TransactionCover = _ConnectionCover.BeginTransaction();
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Bitmap origin;
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try
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{
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origin = new Bitmap(coverPath);
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}
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catch (Exception)
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{
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CLog.LogError("Error loading Texture: " + coverPath);
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return false;
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}
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int w = maxSize;
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int h = maxSize;
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byte[] data;
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try
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{
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if (origin.Width >= origin.Height && origin.Width > w)
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h = (int)Math.Round((float)w / origin.Width * origin.Height);
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else if (origin.Height > origin.Width && origin.Height > h)
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w = (int)Math.Round((float)h / origin.Height * origin.Width);
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using (var bmp = new Bitmap(w, h))
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{
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using (Graphics g = Graphics.FromImage(bmp))
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g.DrawImage(origin, new Rectangle(0, 0, w, h));
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data = new byte[w * h * 4];
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BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
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Marshal.Copy(bmpData.Scan0, data, 0, w * h * 4);
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bmp.UnlockBits(bmpData);
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}
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}
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finally
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{
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origin.Dispose();
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}
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tex = CDraw.EnqueueTexture(w, h, data);
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command.CommandText = "INSERT INTO Cover (Path, width, height) VALUES (@path, @w, @h)";
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command.Parameters.Add("@w", DbType.Int32).Value = w;
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command.Parameters.Add("@h", DbType.Int32).Value = h;
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command.Parameters.Add("@path", DbType.String, 0).Value = coverPath;
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command.ExecuteNonQuery();
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command.CommandText = "SELECT id FROM Cover WHERE [Path] = @path";
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command.Parameters.Add("@path", DbType.String, 0).Value = coverPath;
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reader = command.ExecuteReader();
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if (reader != null)
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{
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reader.Read();
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int id = reader.GetInt32(0);
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reader.Dispose();
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command.CommandText = "INSERT INTO CoverData (CoverID, Data) VALUES (@id, @data)";
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command.Parameters.Add("@id", DbType.Int32).Value = id;
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command.Parameters.Add("@data", DbType.Binary, 20).Value = data;
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command.ExecuteReader();
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return true;
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}
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}
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}
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}
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return false;
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}
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public static void CommitCovers()
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{
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lock (_CoverMutex)
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{
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_CommitCovers();
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}
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}
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/// <summary>
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/// You have to hold the CoverMutex when calling this!
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/// </summary>
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private static void _CommitCovers()
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{
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if (_TransactionCover != null)
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{
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_TransactionCover.Commit();
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_TransactionCover.Dispose();
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_TransactionCover = null;
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GC.Collect();
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}
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}
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public static void Close()
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{
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CommitCovers();
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if (_ConnectionCover != null)
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//Do commit and close atomicly otherwhise we may loose changes
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lock (_CoverMutex)
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{
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_ConnectionCover.Dispose();
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_ConnectionCover = null;
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CommitCovers();
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if (_ConnectionCover != null)
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{
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_ConnectionCover.Dispose();
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_ConnectionCover = null;
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}
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}
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}
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