private static extern uint bltHueTransform(
DirectDrawSurface7 lpDDSDest,
DirectDrawSurface7 lpDDSSource,
int iDestX,
int iDestY,
int sourceX1, int sourceY1, int sourceX2, int sourceY2,
int targetR, int targetG, int targetB, int keyCol);
public void Dispose()
{
// explicitly release a reference
if (surface != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(surface);
}
surface = null;
}
internal Surface(DirectDrawSurface7 _handle)
{
this.surface = _handle;
// compute the size of this surface
DDSURFACEDESC2 desc = new DDSURFACEDESC2();
surface.GetSurfaceDesc(ref desc);
this.size = new Size(desc.lWidth, desc.lHeight);
resetClipRect();
// compute the bit shift width for color fill
DDPIXELFORMAT pixelFormat = new DDPIXELFORMAT();
surface.GetPixelFormat(ref pixelFormat);
widthR = countBitWidth(pixelFormat.lRBitMask);
widthG = countBitWidth(pixelFormat.lGBitMask);
widthB = countBitWidth(pixelFormat.lBBitMask);
}
/// <summary>
/// Helper function used to complete initialization of a surface.
/// </summary>
private void CreateSurface()
{
#if TRACE
ManagedDirectX.Profiler.Start("CreateSurface");
#endif
try
{
if (string.IsNullOrEmpty(image))
{
surface = ManagedDirectX.DirectDraw.CreateSurface(ref descriptor);
if (surface != null)
{
rect.Bottom = descriptor.lHeight;
rect.Right = descriptor.lWidth;
}
}
else
{
try
{
Trace.WriteLine(image);
try
{
surface = ManagedDirectX.DirectDraw.CreateSurfaceFromFile(image, ref descriptor);
}
catch (ArgumentException)
{
descriptor = SystemMemorySurfaceDescription;
surface = ManagedDirectX.DirectDraw.CreateSurfaceFromFile(image, ref descriptor);
}
}
catch (COMException e)
{
// File Not Found
switch ((uint) e.ErrorCode)
{
case 0x800A0035:
Trace.WriteLine(
"Could not find the file '" + image +
"'. This must be placed in the current directory.", "Picture Not Found");
break;
case 0x8876024E:
Trace.WriteLine(
"The graphics card is in an unsupported mode. We will try to initalize again later.");
throw new DirectXException(
"Error Creating a DirectDraw Surface because of unsupported graphics mode.", e);
default:
Trace.WriteLine("Unexpected exception: " + e, "Unexpected Exception");
break;
}
}
rect.Bottom = descriptor.lHeight;
rect.Right = descriptor.lWidth;
}
}
catch (Exception exc)
{
throw new DirectXException("Error Creating a DirectDraw Surface", exc);
}
#if TRACE
ManagedDirectX.Profiler.End("DirectDrawSurface.CreateSurface");
#endif
}
/// <summary>
/// Initialize a new surface based on a previously created surface
/// </summary>
/// <param name="directDrawSurface">The native DirectDraw surface used as reference.</param>
public DirectDrawSurface(DirectDrawSurface7 directDrawSurface)
{
directDrawSurface.GetSurfaceDesc(ref descriptor);
surface = directDrawSurface;
}
/// <summary>
/// Helper function used to complete initialization of a surface.
/// </summary>
private void CreateSurface()
{
#if TRACE
GraphicsEngine.Profiler.Start("CreateSurface");
#endif
try
{
if (string.IsNullOrEmpty(_image))
{
_surface = ((DirectX7GraphicsEngine)(GraphicsEngine.Current)).DirectDraw.CreateSurface(ref _descriptor);
if (_surface != null)
{
_rect.Bottom = _descriptor.lHeight;
_rect.Right = _descriptor.lWidth;
}
}
else
{
try
{
Trace.WriteLine(_image);
try
{
_surface = ((DirectX7GraphicsEngine)(GraphicsEngine.Current)).DirectDraw.CreateSurfaceFromFile(_image, ref _descriptor);
}
catch (ArgumentException)
{
_descriptor = SystemMemorySurfaceDescription;
_surface = ((DirectX7GraphicsEngine)(GraphicsEngine.Current)).DirectDraw.CreateSurfaceFromFile(_image, ref _descriptor);
}
}
catch (COMException e)
{
// File Not Found
switch ((uint)e.ErrorCode)
{
case 0x800A0035:
Trace.WriteLine(
"Could not find the file '" + _image +
"'. This must be placed in the current directory.", "Picture Not Found");
break;
case 0x8876024E:
Trace.WriteLine(
"The graphics card is in an unsupported mode. We will try to initalize again later.");
throw new GraphicsException(
"Error Creating a DirectDraw Surface because of unsupported graphics mode.", e);
default:
Trace.WriteLine("Unexpected exception: " + e, "Unexpected Exception");
break;
}
}
_rect.Bottom = _descriptor.lHeight;
_rect.Right = _descriptor.lWidth;
}
}
catch (Exception exc)
{
throw new GraphicsException("Error Creating a DirectDraw Surface", exc);
}
#if TRACE
GraphicsEngine.Profiler.End("DirectDrawSurface.CreateSurface");
#endif
}
/// <summary>
/// Initialize a new surface based on a previously created surface
/// </summary>
/// <param name="directDrawSurface">The native DirectDraw surface used as reference.</param>
internal DirectDrawSurface(DirectDrawSurface7 directDrawSurface)
{
directDrawSurface.GetSurfaceDesc(ref _descriptor);
_surface = directDrawSurface;
}
/// <summary>
/// Initialize a new surface based on a previously created surface
/// </summary>
/// <param name="directDrawSurface">The native DirectDraw surface used as reference.</param>
public DirectDrawSurface(DirectDrawSurface7 directDrawSurface)
{
directDrawSurface.GetSurfaceDesc(ref descriptor);
surface = directDrawSurface;
}