47 lines
1.4 KiB
C#
47 lines
1.4 KiB
C#
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#if NET6_0_OR_GREATER
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using System;
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namespace NetVips;
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/// <summary>
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/// An input connection.
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/// </summary>
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public partial class Source
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{
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/// <summary>
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/// Make a new source from a memory object.
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/// </summary>
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/// <remarks>
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/// Make a new source that is attached to the memory object. For example:
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/// <code language="lang-csharp">
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/// using var source = Source.NewFromMemory(data);
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/// </code>
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/// You can pass this source to (for example) <see cref="Image.NewFromSource"/>.
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/// </remarks>
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/// <param name="data">The memory object.</param>
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/// <returns>A new <see cref="Source"/>.</returns>
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/// <exception cref="VipsException">If unable to create a new <see cref="Source"/> from <paramref name="data"/>.</exception>
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public static unsafe Source NewFromMemory(ReadOnlySpan<byte> data)
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{
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fixed (byte* dataFixed = data)
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{
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var ptr = Internal.VipsBlob.Copy(dataFixed, (nuint)data.Length);
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if (ptr == IntPtr.Zero)
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{
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throw new VipsException("can't create input source from memory");
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}
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using var blob = new VipsBlob(ptr);
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var pointer = Internal.VipsSource.NewFromBlob(blob);
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if (pointer == IntPtr.Zero)
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{
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throw new VipsException("can't create input source from memory");
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}
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return new Source(pointer);
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}
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}
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}
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#endif
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