Broadside.Images Namespace

Classes (6)

DecodedImageThe decoded samples of an image: the buffer every image codec fills and the renderer reads. Owns pooled memory; dispose it to return the memory.

DecodedImageBuilderFills a DecodedImage: a codec writes rows into Samples (or GetRow(Int32)), sets what it learned about the samples, then calls Build(). Get one from TryCreateImage(Int32, Int32, Int32, Int32, out DecodedImageBuilder?), which checks the engine's image limits before any memory is rented.

ImageDecodeMapAn image's Decode mapping, compiled once per image: raw sample values to colour component values, y = Dmin + x × (Dmax − Dmin) / (2^n − 1). Immutable and thread-safe; mapping allocates nothing.

ImageRowsRow operations over decoded image samples: unpacking packed components, scaling them to 8 bits, colour key and stencil coverage, Matte un-premultiplication and mask sampling. None of them allocates.

PdfAlternateImageAn alternate image: another version of an image, for printing or for another optional content state.

PdfImageAn image: an image XObject, an inline image, or the mask or alternate of one. A live view over the image dictionary that reads its entries with their defaults and decodes its samples on request.

Structs (1)

PdfImageLayoutThe shape of a buffer of image samples: its size, colour space and bits per component.

Enums (3)

ImageColorModelThe colour model an image codec reports for the samples it decoded, after its own colour transforms.

PdfImageCompressionHow CreateImage(ReadOnlySpan<Byte>, PdfImageLayout, PdfImageCompression) compresses samples.

PdfImageMaskKindHow an image is masked: which of its dictionary's masking entries applies.