/// <summary>
/// The WebP load function.
/// </summary>
/// <param name="webpBytes">The input image data</param>
/// <returns>
/// A <see cref="Bitmap"/> containing the WebP image.
/// </returns>
/// <exception cref="ArgumentNullException"><paramref name="webpBytes"/> is null.</exception>
/// <exception cref="OutOfMemoryException">Insufficient memory to load the WebP image.</exception>
/// <exception cref="WebPException">
/// The WebP image is invalid.
/// -or-
/// A native API parameter is invalid.
/// </exception>
internal static unsafe Bitmap Load(byte[] webpBytes)
{
if (webpBytes == null)
{
throw new ArgumentNullException(nameof(webpBytes));
}
WebPNative.ImageInfo imageInfo;
WebPNative.WebPGetImageInfo(webpBytes, out imageInfo);
if (imageInfo.hasAnimation)
{
throw new WebPException(Resources.AnimatedWebPNotSupported);
}
Bitmap image = null;
Bitmap temp = null;
try
{
temp = new Bitmap(imageInfo.width, imageInfo.height, PixelFormat.Format32bppArgb);
BitmapData bitmapData = temp.LockBits(new Rectangle(0, 0, imageInfo.width, imageInfo.height), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
try
{
WebPNative.WebPLoad(webpBytes, bitmapData);
}
finally
{
temp.UnlockBits(bitmapData);
}
image = temp;
temp = null;
}
finally
{
if (temp != null)
{
temp.Dispose();
}
}
return(image);
}
/// <summary>
/// The WebP load function.
/// </summary>
/// <param name="webpBytes">The input image data</param>
/// <returns>
/// A <see cref="Bitmap"/> containing the WebP image.
/// </returns>
/// <exception cref="ArgumentNullException"><paramref name="webpBytes"/> is null.</exception>
/// <exception cref="OutOfMemoryException">Insufficient memory to load the WebP image.</exception>
/// <exception cref="WebPException">
/// The WebP image is invalid.
/// -or-
/// A native API parameter is invalid.
/// </exception>
internal static unsafe Surface Load(byte[] webpBytes)
{
if (webpBytes == null)
{
throw new ArgumentNullException(nameof(webpBytes));
}
WebPNative.WebPGetImageInfo(webpBytes, out WebPNative.ImageInfo imageInfo);
if (imageInfo.hasAnimation)
{
throw new WebPException(Resources.AnimatedWebPNotSupported);
}
Surface image = null;
Surface temp = null;
try
{
temp = new Surface(imageInfo.width, imageInfo.height);
WebPNative.WebPLoad(webpBytes, temp);
image = temp;
temp = null;
}
finally
{
if (temp != null)
{
temp.Dispose();
}
}
return(image);
}