API Reference: ImageInfo

ImageInfo describes pixel dimensions and encoding. It is used to create and describe the memory layout of surfaces, images, and bitmaps.

Constructors & Factories

• new ImageInfo(width, height, colorType, alphaType)
• new ImageInfo(width, height, colorType, alphaType, colorSpace)
• makeN32(width, height, alphaType): Platform-default 32-bit color type.
• makeS32(width, height, alphaType): N32 with sRGB color space.
• makeN32Premul(width, height): N32 with Premultiplied alpha.
• makeA8(width, height): 8-bit alpha only.

Methods

• getWidth() / getHeight(): Pixel dimensions.
• getColorType(): Pixel format (e.g., RGBA_8888).
• getColorAlphaType(): Alpha encoding (PREMUL, UNPREMUL, OPAQUE).
• getColorSpace(): Color range and linearity.
• getBounds(): Returns an IRect from (0,0) to (width, height).
• getBytesPerPixel(): Number of bytes for one pixel.
• getMinRowBytes(): Minimum bytes required for one row of pixels.
• isEmpty(): Returns true if width or height is <= 0.

Functional Modification

ImageInfo is immutable. Use these methods to create modified copies:

• withWidthHeight(w, h)
• withColorType(type)
• withColorAlphaType(type)
• withColorSpace(cs)