Unit BGRAGrayscaleMask
Description
Supplies a linear grayscale bitmap (8-bit per pixel) without transparency.
Pixels are in TByteMask format, based on linear grayscale colorspace (TByteMaskColorspace).
A grayscale mask can be used to compute a shape, regardless of the colors. This is useful for example for text rendering and for layer masking.
Bitmap units: BGRABitmap, ExpandedBitmap, BGRAGrayscaleMask, LinearRGBABitmap, WordXYZABitmap, XYZABitmap.
Uses
Overview
Structures
| Name | Description |
|---|---|
Class TGrayscaleMask |
8-bit grayscale image. |
Functions and Procedures
operator = (const c1, c2: TByteMask): boolean; inline; |
procedure BGRAFillClearTypeGrayscaleMask(dest: TBGRACustomBitmap; x, y: integer; xThird: integer; mask: TGrayscaleMask; color: TBGRAPixel; texture: IBGRAScanner; RGBOrder: boolean); |
procedure DownSamplePutImageGrayscale(source: TGrayscaleMask; dest: TGrayscaleMask; ADestRect: TRect; ASourceRect: TRect); overload; |
procedure DownSamplePutImageGrayscale(source: TBGRACustomBitmap; dest: TGrayscaleMask; ADestRect: TRect; ASourceRect: TRect); overload; |
procedure DownSamplePutImageGrayscale(sourceData: PByte; sourcePixelSize: Int32or64; sourceRowDelta: Int32or64; sourceWidth, sourceHeight: Int32or64; dest: TGrayscaleMask; ADestRect: TRect); overload; |
procedure DownSamplePutImageGrayscale(source: TBGRACustomBitmap; dest: TGrayscaleMask; ADestRect: TRect); overload; |
procedure DownSamplePutImageGrayscale(source: TGrayscaleMask; dest: TGrayscaleMask; ADestRect: TRect); overload; |
Constants
ByteMaskBlack : TByteMask = (gray:0); |
ByteMaskWhite : TByteMask = (gray:255); |
Description
Functions and Procedures
operator = (const c1, c2: TByteMask): boolean; inline; |
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This item has no description. |
procedure BGRAFillClearTypeGrayscaleMask(dest: TBGRACustomBitmap; x, y: integer; xThird: integer; mask: TGrayscaleMask; color: TBGRAPixel; texture: IBGRAScanner; RGBOrder: boolean); |
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This item has no description. |
procedure DownSamplePutImageGrayscale(source: TGrayscaleMask; dest: TGrayscaleMask; ADestRect: TRect; ASourceRect: TRect); overload; |
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This item has no description. |
procedure DownSamplePutImageGrayscale(source: TBGRACustomBitmap; dest: TGrayscaleMask; ADestRect: TRect; ASourceRect: TRect); overload; |
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This item has no description. |
procedure DownSamplePutImageGrayscale(sourceData: PByte; sourcePixelSize: Int32or64; sourceRowDelta: Int32or64; sourceWidth, sourceHeight: Int32or64; dest: TGrayscaleMask; ADestRect: TRect); overload; |
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This item has no description. |
procedure DownSamplePutImageGrayscale(source: TBGRACustomBitmap; dest: TGrayscaleMask; ADestRect: TRect); overload; |
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This item has no description. |
procedure DownSamplePutImageGrayscale(source: TGrayscaleMask; dest: TGrayscaleMask; ADestRect: TRect); overload; |
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This item has no description. |
Constants
ByteMaskBlack : TByteMask = (gray:0); |
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This item has no description. |
ByteMaskWhite : TByteMask = (gray:255); |
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This item has no description. |