本文整理汇总了C#中Surface.Lock方法的典型用法代码示例。如果您正苦于以下问题：C# Surface.Lock方法的具体用法？C# Surface.Lock怎么用？C# Surface.Lock使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Surface的用法示例。
在下文中一共展示了Surface.Lock方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: BlitRGB32
/// <summary>
/// Blits the RGB-Bitmap to a RGB32 Surface
/// </summary>
/// <param name="src">RGB Bitmap</param>
/// <param name="dest">RGB32 Surface</param>
public unsafe void BlitRGB32( Bitmap src, Surface dest ) {
BitmapData ds = src.LockBits( new Rectangle( 0, 0, src.Width, src.Height ), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb );
try {
LockedData dd = dest.Lock( LockFlags.WriteOnly );
try {
int ps = ds.Stride - ( ds.Width * 3 );
byte[] pd = new byte[ dd.Pitch - ( dd.Width * 4 ) ];
byte* ptr = (byte*)ds.Scan0;
for( int h = 0; h < ds.Height; h++ ) {
for( int w = 0; w < ds.Width; w += 1 ) {
byte[] dbuf = new byte[ 4 ]; //2 pixel (2x16)
byte r = ptr[ 0 ];
byte g = ptr[ 1 ];
byte b = ptr[ 2 ];
ptr += 3;
dbuf[ 0 ] = r;
dbuf[ 1 ] = g;
dbuf[ 2 ] = b;
dd.Data.Write( dbuf, 0, dbuf.Length );
}
ptr += ps;
if( pd.Length > 0 )
dd.Data.Write( pd, 0, pd.Length );
}
} finally {
dest.Unlock();
}
} finally {
src.UnlockBits( ds );
}
}示例2: BlitYUY2
/// <summary>
/// Blits the RGB Bitmap to a YUY2 surface
/// </summary>
/// <param name="src">RGB Bitmap</param>
/// <param name="dest">YUY2 Surface</param>
public unsafe void BlitYUY2( Bitmap src, Surface dest ) {
BitmapData ds = src.LockBits( new Rectangle( 0, 0, src.Width, src.Height ), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb );
try {
LockedData dd = dest.Lock( LockFlags.WriteOnly );
try {
int ps = ds.Stride - ( ds.Width * 3 );
byte[] pd = new byte[ dd.Pitch - ( dd.Width * 2 ) ];
byte* ptr = (byte*)ds.Scan0;
for( int h = 0; h < ds.Height; h++ ) {
for( int w = 0; w < ds.Width; w += 2 ) {
byte[] dbuf = new byte[ 4 ]; //2 pixel (2x16bit)
byte r1 = ptr[ 0 ];
byte g1 = ptr[ 1 ];
byte b1 = ptr[ 2 ];
ptr += 3;
byte r2 = ptr[ 0 ];
byte g2 = ptr[ 1 ];
byte b2 = ptr[ 2 ];
ptr += 3;
//Dont ask me for the conversion formulas - They are from FourCC and a bit of own modifications to match colors better
dbuf[ 0 ] = (byte)Math.Min( 255, ( 0.230 * r1 ) + ( 0.600 * g1 ) + ( 0.170 * b1 ) ); //Yo - luminescent 1
dbuf[ 2 ] = (byte)Math.Min( 255, ( 0.230 * r2 ) + ( 0.600 * g2 ) + ( 0.170 * b2 ) ); //Y1 - luminescent 2
dbuf[ 1 ] = (byte)Math.Min( 255, +( 0.439 * r1 ) - ( 0.368 * g1 ) - ( 0.071 * b1 ) + 128 ); //Ux - same for both
dbuf[ 3 ] = (byte)Math.Min( 255, -( 0.148 * r1 ) - ( 0.291 * g1 ) + ( 0.439 * b1 ) + 128 ); //Vx - same for both
dd.Data.Write( dbuf, 0, dbuf.Length );
}
ptr += ps;
if( pd.Length > 0 ) {
dd.Data.Write( pd, 0, pd.Length );
}
}
} catch( Exception e ) {
MessageBox.Show( e.ToString() );
} finally {
dest.Unlock();
}
} catch( Exception e ) {
System.Diagnostics.Debug.WriteLine( e );
} finally {
src.UnlockBits( ds );
}
}