/// <summary>
/// Return a <see cref="Buffer2DRegion{T}"/> to the subregion represented by 'rectangle'
/// </summary>
/// <typeparam name="T">The element type</typeparam>
/// <param name="buffer">The <see cref="Buffer2D{T}"/></param>
/// <param name="rectangle">The rectangle subregion</param>
/// <returns>The <see cref="Buffer2DRegion{T}"/></returns>
internal static Buffer2DRegion <T> GetRegion <T>(this Buffer2D <T> buffer, Rectangle rectangle)
where T : unmanaged =>
new Buffer2DRegion <T>(buffer, rectangle);
internal static Buffer2DRegion <T> GetRegion <T>(this Buffer2D <T> buffer, int x, int y, int width, int height)
where T : unmanaged =>
new Buffer2DRegion <T>(buffer, new Rectangle(x, y, width, height));
/// <summary>
/// Gets the backing <see cref="IMemoryGroup{T}"/>.
/// </summary>
/// <param name="buffer">The buffer.</param>
/// <typeparam name="T">The element type.</typeparam>
/// <returns>The MemoryGroup.</returns>
public static IMemoryGroup <T> GetMemoryGroup <T>(this Buffer2D <T> buffer)
where T : struct
{
Guard.NotNull(buffer, nameof(buffer));
return(buffer.FastMemoryGroup.View);
}
/// <summary>
/// Returns a <see cref="Rectangle"/> representing the full area of the buffer.
/// </summary>
/// <typeparam name="T">The element type</typeparam>
/// <param name="buffer">The <see cref="Buffer2D{T}"/></param>
/// <returns>The <see cref="Rectangle"/></returns>
internal static Rectangle FullRectangle <T>(this Buffer2D <T> buffer)
where T : struct
{
return(new Rectangle(0, 0, buffer.Width, buffer.Height));
}
/// <summary>
/// Return a <see cref="Buffer2DRegion{T}"/> to the whole area of 'buffer'
/// </summary>
/// <typeparam name="T">The element type</typeparam>
/// <param name="buffer">The <see cref="Buffer2D{T}"/></param>
/// <returns>The <see cref="Buffer2DRegion{T}"/></returns>
internal static Buffer2DRegion <T> GetRegion <T>(this Buffer2D <T> buffer)
where T : unmanaged =>
new Buffer2DRegion <T>(buffer);
/// <summary>
/// Returns the size of the buffer.
/// </summary>
/// <typeparam name="T">The element type</typeparam>
/// <param name="buffer">The <see cref="Buffer2D{T}"/></param>
/// <returns>The <see cref="Size{T}"/> of the buffer</returns>
internal static Size Size <T>(this Buffer2D <T> buffer)
where T : struct
{
return(new Size(buffer.Width, buffer.Height));
}
public static Memory <T> GetRowMemory <T>(this Buffer2D <T> buffer, int y)
where T : struct
{
Guard.NotNull(buffer, nameof(buffer));
return(buffer.MemorySource.Memory.Slice(y * buffer.Width, buffer.Width));
}
public BufferArea(Buffer2D <T> destinationBuffer)
: this(destinationBuffer, destinationBuffer.FullRectangle())
{
}
/// <summary>
/// Gets the <see cref="Memory{T}"/> holding the backing buffer of <paramref name="buffer"/>.
/// </summary>
/// <param name="buffer">The <see cref="Buffer2D{T}"/>.</param>
/// <typeparam name="T">The value type.</typeparam>
/// <returns>The <see cref="Memory{T}"/>.</returns>
public static Memory <T> GetMemory <T>(this Buffer2D <T> buffer)
where T : struct
{
Guard.NotNull(buffer, nameof(buffer));
return(buffer.MemorySource.Memory);
}
public static Span <T> GetRowSpan <T>(this Buffer2D <T> buffer, int y)
where T : struct
{
Guard.NotNull(buffer, nameof(buffer));
return(buffer.GetSpan().Slice(y * buffer.Width, buffer.Width));
}
/// <summary> /// Gets a span for all the pixels in <paramref name="buffer"/> defined by <paramref name="rows"/> /// </summary> internal static Span <T> GetMultiRowSpan <T>(this Buffer2D <T> buffer, in RowInterval rows)
/// <summary>
/// Return a <see cref="BufferArea{T}"/> to the whole area of 'buffer'
/// </summary>
/// <typeparam name="T">The element type</typeparam>
/// <param name="buffer">The <see cref="Buffer2D{T}"/></param>
/// <returns>The <see cref="BufferArea{T}"/></returns>
internal static BufferArea <T> GetArea <T>(this Buffer2D <T> buffer)
where T : struct =>
new BufferArea <T>(buffer);
internal static BufferArea <T> GetArea <T>(this Buffer2D <T> buffer, int x, int y, int width, int height)
where T : struct =>
new BufferArea <T>(buffer, new Rectangle(x, y, width, height));
/// <summary>
/// Return a <see cref="BufferArea{T}"/> to the subarea represented by 'rectangle'
/// </summary>
/// <typeparam name="T">The element type</typeparam>
/// <param name="buffer">The <see cref="Buffer2D{T}"/></param>
/// <param name="rectangle">The rectangle subarea</param>
/// <returns>The <see cref="BufferArea{T}"/></returns>
internal static BufferArea <T> GetArea <T>(this Buffer2D <T> buffer, in Rectangle rectangle)
public Buffer2DRegion(Buffer2D <T> buffer)
: this(buffer, buffer.FullRectangle())
{
}
