/// <summary>
/// Initializes a new instance of the <see cref="ColorProfileConverter"/> class.
/// </summary>
public ColorProfileConverter()
{
documentProfile = null;
monitorProfile = null;
transform = null;
colorCorrectionRequired = false;
disposed = false;
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
if (!disposed)
{
if (documentProfile != null)
{
documentProfile.Dispose();
documentProfile = null;
}
if (monitorProfile != null)
{
monitorProfile.Dispose();
monitorProfile = null;
}
if (transform != null)
{
transform.Dispose();
transform = null;
}
disposed = true;
}
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
if (!disposed)
{
if (documentProfile != null)
{
documentProfile.Dispose();
documentProfile = null;
}
if (monitorProfile != null)
{
monitorProfile.Dispose();
monitorProfile = null;
}
if (transform != null)
{
transform.Dispose();
transform = null;
}
if (interleavedCMYKSurface != null)
{
interleavedCMYKSurface.Dispose();
interleavedCMYKSurface = null;
}
if (interleavedRGBSurface != null)
{
interleavedRGBSurface.Dispose();
interleavedRGBSurface = null;
}
disposed = true;
}
}
private static extern bool TranslateColors(SafeTransformHandle hTransform, IntPtr paInputColors, uint nColors, COLOR_TYPE ctInput, IntPtr paOutputColors, COLOR_TYPE ctOutput);
private static extern unsafe bool TranslateBitmapBits(SafeTransformHandle hTransform, void *pSrcBits, mscmsPxFormat bmFormat, uint dwWidth, uint dwHeight, uint dwInputStride, void *pDestBits, mscmsPxFormat bmOutput, uint dwOutputStride, IntPtr pfnCallBack, IntPtr lParam);
private static int CreateColorTransform(SafeProfileHandle input, SafeProfileHandle output, out SafeTransformHandle handle)
{
if (input == null)
{
throw new ArgumentNullException(nameof(input));
}
if (output == null)
{
throw new ArgumentNullException(nameof(output));
}
#if DEBUG
System.Diagnostics.Debug.Assert(!input.IsInvalid, "Input handle is invalid.");
System.Diagnostics.Debug.Assert(!output.IsInvalid, "Output handle is invalid.");
#endif
handle = null;
int error = NativeConstants.ERROR_SUCCESS;
bool inputNeedsRelease = false;
bool outputNeedsRelease = false;
System.Runtime.CompilerServices.RuntimeHelpers.PrepareConstrainedRegions();
try
{
input.DangerousAddRef(ref inputNeedsRelease);
output.DangerousAddRef(ref outputNeedsRelease);
IntPtr[] profiles = new IntPtr[2] {
input.DangerousGetHandle(), output.DangerousGetHandle()
};
uint[] intents = new uint[2]
{
(uint)NativeEnums.Mscms.RenderingIntent.Perceptual,
(uint)NativeEnums.Mscms.RenderingIntent.Perceptual
};
handle = UnsafeNativeMethods.Mscms.CreateMultiProfileTransform(
profiles,
(uint)profiles.Length,
intents,
(uint)intents.Length,
NativeEnums.Mscms.TransformFlags.BestMode,
NativeConstants.CMM_FROM_PROFILE
);
if (handle == null || handle.IsInvalid)
{
error = Marshal.GetLastWin32Error();
}
}
finally
{
if (inputNeedsRelease)
{
input.DangerousRelease();
}
if (outputNeedsRelease)
{
output.DangerousRelease();
}
}
return(error);
}
