Filters Reference

You can use the CDXBaseNTo1 template base class to simplify transform development. This base class implements the necessary public interfaces, providing parameter validation and default implementations for most methods. An Active Template Library (ATL) object derived from this class can override a few virtual member functions, such as CDXBaseNTo1::OnExecute or CDXBaseNTo1::WorkProc, and quickly create a fully functional transform.

The CDXBnds template class is used to simplify construction and manipulation of the DXBNDS structure.

This template class uses a pre-computed lookup table to scale samples.

The CDXVec template class is used to simplify construction and manipulation of the DXVEC data type.

Describes a color in 32-bit pixel format, consisting of relative red, green, blue, and alpha intensities. In this class, the stored color values have been alpha premultiplied.

Provides methods and properties to manipulate an effect.

The IDXARGBReadWritePtr interface enables Microsoft DirectX Transform objects to gain read/write access to samples contained in a DXSurface object.

The IDXBaseObject interface manages the generation ID of an object.

The IDXDCLock interface is used to lock a surface and to obtain a device context (DC) that can be used with Windows Graphics Device Interface (GDI) calls.

This interface generically controls transition settings on all transform objects.

The IDXLookupTable interface changes the color balance for a set of samples. Each color in the pixel is used as an index in a table that indicates what the adjusted color value should be.

The IDXRawSurface interface is used to implement custom surface types that are not based on Microsoft DirectDraw surfaces. These surface types are called custom raw surfaces. This interface enables a custom raw surface to be accessed as a DXSurface through the IDXSurface interface.

The IDXSurfaceFactory interface provides methods to create and load data into DXSurface data objects.

The IDXSurfaceModifier interface is a procedural surface that uses up to two input surfaces. The methods of this interface set background colors, background surfaces, and foreground surfaces, which the DXSurfaceModifier object (Surface Modifier) uses to create another surface based on the options you set.

The IDXTaskManager interface enables you to configure the task manager to specify the thread pool size and the thread concurrency limit.

This interface performs image convolutions for DXSurface objects.

The IDXTransformFactory interface creates and initializes a transform. It is created by calling the CoCreateInstance method and specifying CLSID_DXTransformFactory as the CLSID and IID_IDXTransformFactory as the interface ID.

The IDXTScaleOutput interface is an optional interface supported by certain image transforms. It enables you to scale transform output to a specified size. It is typically supported by zero input image transforms, such as the Gradient sample included with the software development kit (SDK).

Provides methods to manipulate the behavior site.

Decodes an image using a specified MIME type.

Applies a color channel lookup table to an array of DXBASESAMPLE structures.

Applies a lookup table to an array of DXBASESAMPLE structures.

Copies a region of a DXSurface to a second DXSurface.

Converts a BSTR enumerated color to a 32-bit ARGB value.

Composites an alpha premultiplied source sample under a destination sample.

Composites a single color under an array of samples.

Dithers a specified array of samples.

Fills a region of a surface with a specified color.

Initializes a Gaussian convolution filter.

Verifies that the calling process has read access to the specified interface pointer.

Verifies that the calling process has write access to the specified range of memory.

Composites an array of source samples over an array of destination samples.

Allocates an array of DXPMSAMPLE structures.

Multiplies the color components of a sample by its alpha value.

Converts a COLORREF value to a DXSAMPLE structure format.

Scales the red, green, blue, and alpha channels of a sample.

Copies a region of a source surface to a destination surface.

Converts an array of DXPMSAMPLE colors to DXSAMPLE format.

Produces a weighted average of two samples.

Takes a weighted average of two sample arrays and composites the result over a third array.

Describes a continuous, 32-bit boundary for a transform object.

Describes a discrete, 32-bit boundary for a transform object.

Contains the information needed by the DXDitherArray helper function to dither an array of sample.

Describes the underlying native pixel format of a DXSurface object.

Describes a rectangular array of pixels in a DXSurface object.

Contains information needed by the IDXRawSurface interface to initialize a DXSurface from a custom raw surface.

Describes a task to be performed by a DXTaskManager (task manager) object.

Identifies an axis for a surface boundary.

Describes the method used for compositing by the Compositor transform.

Describes the type of effect used for a particular transform.

Used by IDXTransform::GetInOutInfo to specify whether an input or output data object is required.

Identifies which color balance is to be adjusted by a lookup table. It is used in the IDXLUTBuilder::GetColorBalance and IDXLUTBuilder::SetColorBalance methods.

Indicates the pixel format of a DXSurface object. This enumerated type is returned by the IDXARGBReadPtr::GetNativeType and IDXSurface::GetPixelFormat methods.

Describes the method used by the IDXSurfaceModifier interface for compositing operations.

Describes the dispid.

Describes flags that specify transform capabilities and rendering options.