/// <summary>
/// Gets image color profile.
/// </summary>
/// <returns>The image color profile.</returns>
/// <exception cref="HeifException">
/// The color profile type is not supported.
///
/// -or-
///
/// A LibHeif error occurred.
/// </exception>
private unsafe HeifColorProfile GetImageColorProfile()
{
HeifColorProfile profile = null;
var colorProfileType = LibHeifNative.heif_image_get_color_profile_type(this.image);
switch (colorProfileType)
{
case heif_color_profile_type.None:
break;
case heif_color_profile_type.Nclx:
profile = new HeifNclxColorProfile(this.image);
break;
case heif_color_profile_type.IccProfile:
case heif_color_profile_type.RestrictedIcc:
profile = new HeifIccColorProfile(this.image);
break;
default:
throw new HeifException(Resources.ColorProfileTypeNotSupported);
}
return(profile);
}
/// <summary>
/// Initializes a new instance of the <see cref="HeifImage" /> class.
/// </summary>
/// <param name="image">The image.</param>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="imageHandleColorProfile">The image handle color profile.</param>
internal HeifImage(SafeHeifImage image, int width, int height, HeifColorProfile imageHandleColorProfile)
{
Validate.IsNotNull(image, nameof(image));
this.image = image;
this.cachedImageColorProfile = imageHandleColorProfile;
this.fetchedColorProfileFromImage = this.cachedImageColorProfile != null;
this.sync = new object();
this.Width = width;
this.Height = height;
this.Colorspace = LibHeifNative.heif_image_get_colorspace(image);
this.Chroma = LibHeifNative.heif_image_get_chroma_format(image);
}
/// <summary>
/// Initializes a new instance of the <see cref="HeifImage"/> class.
/// </summary>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="colorspace">The color space.</param>
/// <param name="chroma">The chroma.</param>
/// <exception cref="ArgumentOutOfRangeException">
/// <paramref name="width"/> is less than or equal to zero.
///
/// -or-
///
/// <paramref name="height"/> is less than or equal to zero.
/// </exception>
/// <exception cref="HeifException">
/// A LibHeif error occurred.
///
/// -or-
///
/// The LibHeif version is not supported.
/// </exception>
public HeifImage(int width, int height, HeifColorspace colorspace, HeifChroma chroma)
{
Validate.IsPositive(width, nameof(width));
Validate.IsPositive(height, nameof(height));
LibHeifVersion.ThrowIfNotSupported();
var error = LibHeifNative.heif_image_create(width,
height,
colorspace,
chroma,
out this.image);
error.ThrowIfError();
// The caller can set a color profile after the image has been created.
this.cachedImageColorProfile = null;
this.fetchedColorProfileFromImage = true;
this.sync = new object();
this.Width = width;
this.Height = height;
this.Colorspace = colorspace;
this.Chroma = chroma;
}
