/// <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>
/// Updates the cached color profiles while locked.
/// </summary>
/// <exception cref="HeifException">
/// The color profile type is not supported.
///
/// -or-
///
/// A LibHeif error occurred.
/// </exception>
private void UpdateCachedColorProfilesWhileLocked()
{
if (LibHeifVersion.Is1Point12OrLater)
{
this.cachedIccColorProfile = HeifIccColorProfile.TryCreate(this.image);
this.cachedNclxColorProfile = HeifNclxColorProfile.TryCreate(this.image);
}
else
{
// LibHeif version 1.11 and earlier will crash when retrieving the NCLX color
// profile if the image does not have one.
var colorProfileType = LibHeifNative.heif_image_get_color_profile_type(this.image);
switch (colorProfileType)
{
case heif_color_profile_type.None:
this.cachedIccColorProfile = null;
this.cachedNclxColorProfile = null;
break;
case heif_color_profile_type.Nclx:
this.cachedIccColorProfile = null;
this.cachedNclxColorProfile = HeifNclxColorProfile.TryCreate(this.image);
break;
case heif_color_profile_type.IccProfile:
case heif_color_profile_type.RestrictedIcc:
this.cachedIccColorProfile = HeifIccColorProfile.TryCreate(this.image);
this.cachedNclxColorProfile = null;
break;
default:
throw new HeifException(Resources.ColorProfileTypeNotSupported);
}
}
}
