Class TestPatternPixelSource

A sample IPixelSource implementation. Creates a test pattern of stair-stepped color or grey bars.

Inheritance
System.Object
TestPatternPixelSource
Implements
System.IDisposable
Namespace: PhotoSauce.MagicScaler
Assembly: PhotoSauce.MagicScaler.dll
Syntax
public sealed class TestPatternPixelSource : Object, IPixelSource
Remarks

This pixel source is useful when a simple recognizable pattern is desired. It produces output at memcpy speed.

Constructors

TestPatternPixelSource(Int32, Int32, Guid)

Constructs a new TestPatternPixelSource using the specified settings.

Declaration
public TestPatternPixelSource(int width, int height, Guid pixelFormat)
Parameters
Type Name Description
System.Int32 width

The image width in pixels.
System.Int32 height

The image height in pixels.
System.Guid pixelFormat

The pixel format of the image. Must be a member of PixelFormats.
Remarks

width and height values up to 65535 are allowed, although not all encoders support imgages of that size.

Properties

Format

The binary representation of the pixel data. Must be one of the values from PixelFormats.

Declaration
public Guid Format { get; }
Property Value
Type Description
System.Guid

Height

The height of the image in pixels

Declaration
public int Height { get; }
Property Value
Type Description
System.Int32

Width

The width of the image in pixels

Declaration
public int Width { get; }
Property Value
Type Description
System.Int32

Methods

CopyPixels(Rectangle, Int32, Span<Byte>)

Copies the image pixels bounded by sourceArea to the provided buffer.

Declaration
public void CopyPixels(Rectangle sourceArea, int cbStride, Span<byte> buffer)
Parameters
Type Name Description
System.Drawing.Rectangle sourceArea

A System.Drawing.Rectangle that bounds the area of interest.
System.Int32 cbStride

The number of bytes between pixels in the same image column within the buffer.
System.Span<System.Byte> buffer

A target memory buffer that will receive the pixel data.

Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

Declaration
public void Dispose()

ToString()

Returns a string that represents the current object.

Declaration
public override string ToString()
Returns
Type Description
System.String

A string that represents the current object.

Implements

System.IDisposable