internal static void GmicImageListAdd(SafeGmicImageList list,
uint width,
uint height,
GmicPixelFormat format,
string name,
out GmicImageListPixelData pixelData,
out NativeImageFormat nativeImageFormat)
{
ValidateGmicImageList(list);
pixelData = new GmicImageListPixelData();
nativeImageFormat = ConvertToNativeImageFormat(format);
GmicStatus status = GmicNativeMethods.Instance.GmicImageListAdd(list,
width,
height,
nativeImageFormat,
string.IsNullOrWhiteSpace(name) ? null : name,
pixelData);
if (status != GmicStatus.Ok)
{
HandleError(status);
}
}
private static NativeImageFormat ConvertToNativeImageFormat(GmicPixelFormat format)
{
switch (format)
{
case GmicPixelFormat.Gray8:
return(NativeImageFormat.Gray8);
case GmicPixelFormat.GrayAlpha16:
return(NativeImageFormat.GrayAlpha88);
case GmicPixelFormat.Rgb24:
return(NativeImageFormat.Rgb888);
case GmicPixelFormat.Rgba32:
return(NativeImageFormat.Rgba8888);
default:
throw new InvalidEnumArgumentException(nameof(format), (int)format, typeof(GmicPixelFormat));
}
}
/// <summary>
/// Creates a <see cref="GdiPlusGmicBitmap"/> from specified output image information.
/// </summary>
/// <param name="width">The output image width.</param>
/// <param name="height">The output image height.</param>
/// <param name="gmicPixelFormat">The output image G'MIC pixel format.</param>
/// <returns>The created bitmap.</returns>
public GdiPlusGmicBitmap Create(int width, int height, GmicPixelFormat gmicPixelFormat)
{
PixelFormat format;
switch (gmicPixelFormat)
{
case GmicPixelFormat.Gray8:
case GmicPixelFormat.Rgb24:
format = PixelFormat.Format24bppRgb;
break;
case GmicPixelFormat.GrayAlpha16:
case GmicPixelFormat.Rgba32:
format = PixelFormat.Format32bppArgb;
break;
default:
throw new InvalidOperationException($"Unsupported { nameof(GmicPixelFormat) } value: { gmicPixelFormat }.");
}
return(new GdiPlusGmicBitmap(width, height, format));
}
/// <summary>
/// Adds the specified bitmap.
/// </summary>
/// <param name="bitmap">The bitmap.</param>
/// <param name="name">The name.</param>
/// <exception cref="ObjectDisposedException">The object has been disposed.</exception>
/// <exception cref="OutOfMemoryException">Insufficient memory to add the image.</exception>
public void Add(GmicBitmap bitmap, string name)
{
if (bitmap is null)
{
ExceptionUtil.ThrowArgumentNullException(nameof(bitmap));
}
VerifyNotDisposed();
uint width = (uint)bitmap.Width;
uint height = (uint)bitmap.Height;
GmicPixelFormat format = bitmap.GetGmicPixelFormat();
NativeImageFormat nativeImageFormat;
GmicImageListPixelData pixelData;
// G'MIC uses a planar format, so the stride between rows is the image width.
int planeStride = (int)width;
// Add a new image to the native G'MIC image list.
GmicNative.GmicImageListAdd(nativeImageList, width, height, format, name, out pixelData, out nativeImageFormat);
// Copy the pixel data to the native image.
bitmap.CopyToGmicImage(nativeImageFormat, pixelData, planeStride);
}
