OH_PixelmapNative

struct OH_PixelmapNative

Overview

The OH_PixelmapNative struct describes an uncompressed PixelMap format, which is encapsulated at the native layer after images are decoded.

To create an OH_PixelmapNative object, call OH_PixelmapNative_CreatePixelmap. By default, BGRA_8888 is used for data processing.

To release an OH_PixelmapNative object, call OH_PixelmapNative_Release.

The table below describes the content and operation mode of the OH_PixelmapNative struct.

Field Type	Field Name	Field Description	Operation Function	Function Description
uint8_t	data	Image pixel data.	OH_PixelmapNative_ReadPixels	Reads the pixels of a PixelMap and writes the result to an ArrayBuffer.
uint8_t	data	Image pixel data.	OH_PixelmapNative_WritePixels	Reads the pixel data in the buffer and writes the result to a PixelMap.
OH_Pixelmap_ImageInfo	imageInfo	Image information.	OH_PixelmapNative_GetImageInfo	Obtains the image information of a PixelMap.
float	alphaRate	Opacity.	OH_PixelmapNative_Opacity	Sets the opacity rate to enable the PixelMap to achieve the corresponding opacity effect.
float, float	scaleX, scaleY	Scale ratios along the X axis and Y axis, respectively.	OH_PixelmapNative_Scale	Scales a PixelMap based on a given width and height.
float, float	x, y	Distances to translate along the X axis and Y axis, respectively.	OH_PixelmapNative_Translate	Translates a PixelMap based on given coordinates.
float	angle	Rotation angle.	OH_PixelmapNative_Rotate	Rotates a PixelMap based on a given angle.
bool, bool	shouldFlipHorizontally, shouldFlipVertically	Whether the PixelMap is flipped horizontally or vertically.	OH_PixelmapNative_Flip	Flips a PixelMap based on a given angle.
Image_Region	region	Cropping region.	OH_PixelmapNative_Crop	Crops a PixelMap based on a given size.