D2D1_POINTDIFFUSE_SCALE_MODE enumeration (d2d1effects.h)
The interpolation mode the Point-diffuse lighting effect uses to scale the image to the corresponding kernel unit length. There are six scale modes that range in quality and speed
Syntax
typedef enum D2D1_POINTDIFFUSE_SCALE_MODE {
D2D1_POINTDIFFUSE_SCALE_MODE_NEAREST_NEIGHBOR = 0,
D2D1_POINTDIFFUSE_SCALE_MODE_LINEAR = 1,
D2D1_POINTDIFFUSE_SCALE_MODE_CUBIC = 2,
D2D1_POINTDIFFUSE_SCALE_MODE_MULTI_SAMPLE_LINEAR = 3,
D2D1_POINTDIFFUSE_SCALE_MODE_ANISOTROPIC = 4,
D2D1_POINTDIFFUSE_SCALE_MODE_HIGH_QUALITY_CUBIC = 5,
D2D1_POINTDIFFUSE_SCALE_MODE_FORCE_DWORD = 0xffffffff
} ;
Constants
D2D1_POINTDIFFUSE_SCALE_MODE_NEAREST_NEIGHBOR Value: 0 Samples the nearest single point and uses that. This mode uses less processing time, but outputs the lowest quality image. |
D2D1_POINTDIFFUSE_SCALE_MODE_LINEAR Value: 1 Uses a four point sample and linear interpolation. This mode outputs a higher quality image than nearest neighbor. |
D2D1_POINTDIFFUSE_SCALE_MODE_CUBIC Value: 2 Uses a 16 sample cubic kernel for interpolation. This mode uses the most processing time, but outputs a higher quality image. |
D2D1_POINTDIFFUSE_SCALE_MODE_MULTI_SAMPLE_LINEAR Value: 3 Uses 4 linear samples within a single pixel for good edge anti-aliasing. This mode is good for scaling down by small amounts on images with few pixels. |
D2D1_POINTDIFFUSE_SCALE_MODE_ANISOTROPIC Value: 4 Uses anisotropic filtering to sample a pattern according to the transformed shape of the bitmap. |
D2D1_POINTDIFFUSE_SCALE_MODE_HIGH_QUALITY_CUBIC Value: 5 Uses a variable size high quality cubic kernel to perform a pre-downscale the image if downscaling is involved in the transform matrix. Then uses the cubic interpolation mode for the final output. |
D2D1_POINTDIFFUSE_SCALE_MODE_FORCE_DWORD Value: 0xffffffff |
Requirements
Requirement | Value |
---|---|
Header | d2d1effects.h |