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Add an allocation-free alternative to Image.Pixels #202

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Add an allocation-free alternative to Image.Pixels #202

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18 changes: 18 additions & 0 deletions src/SFML.Graphics/Image.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -297,6 +297,24 @@ public byte[] Pixels
}
}

////////////////////////////////////////////////////////////
/// <summary>
/// Copy the array of pixels (RGBA 8 bits integers
/// components) to the provided buffer.
/// Buffer size must be at least Width x Height x 4
/// </summary>
/// <param name="buffer">Buffer to copy to</param>
////////////////////////////////////////////////////////////
public void CopyPixels(byte[] buffer)
{
Vector2u size = Size;
if (buffer.Length < size.X * size.Y * 4)
{
throw new ArgumentException("Buffer must have a size of at least Width * Height * 4 bytes", nameof(buffer));
}
Marshal.Copy(sfImage_getPixelsPtr(CPointer), buffer, 0, (int)(size.X * size.Y * 4));
}

////////////////////////////////////////////////////////////
/// <summary>
/// Size of the image, in pixels
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