mirror of
https://github.com/denoland/deno.git
synced 2024-11-22 04:51:22 +00:00
143 lines
4.0 KiB
TypeScript
143 lines
4.0 KiB
TypeScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
|
|
|
|
// deno-lint-ignore-file no-var
|
|
|
|
/// <reference no-default-lib="true" />
|
|
/// <reference lib="esnext" />
|
|
|
|
/**
|
|
* Specifies whether the image should be decoded using color space conversion.
|
|
* Either none or default (default). The value default indicates that
|
|
* implementation-specific behavior is used.
|
|
*
|
|
* @category Canvas
|
|
*/
|
|
type ColorSpaceConversion = "default" | "none";
|
|
|
|
/**
|
|
* Specifies how the bitmap image should be oriented.
|
|
*
|
|
* @category Canvas
|
|
*/
|
|
type ImageOrientation = "flipY" | "from-image" | "none";
|
|
|
|
/**
|
|
* Specifies whether the bitmap's color channels should be premultiplied by
|
|
* the alpha channel.
|
|
*
|
|
* @category Canvas
|
|
*/
|
|
type PremultiplyAlpha = "default" | "none" | "premultiply";
|
|
|
|
/**
|
|
* Specifies the algorithm to be used for resizing the input to match the
|
|
* output dimensions. One of `pixelated`, `low` (default), `medium`, or `high`.
|
|
*
|
|
* @category Canvas
|
|
*/
|
|
type ResizeQuality = "high" | "low" | "medium" | "pixelated";
|
|
|
|
/**
|
|
* The `ImageBitmapSource` type represents an image data source that can be
|
|
* used to create an `ImageBitmap`.
|
|
*
|
|
* @category Canvas */
|
|
type ImageBitmapSource = Blob | ImageData;
|
|
|
|
/**
|
|
* The options of {@linkcode createImageBitmap}.
|
|
*
|
|
* @category Canvas */
|
|
interface ImageBitmapOptions {
|
|
/**
|
|
* Specifies whether the image should be decoded using color space
|
|
* conversion. Either none or default (default). The value default
|
|
* indicates that implementation-specific behavior is used.
|
|
*/
|
|
colorSpaceConversion?: ColorSpaceConversion;
|
|
/** Specifies how the bitmap image should be oriented. */
|
|
imageOrientation?: ImageOrientation;
|
|
/**
|
|
* Specifies whether the bitmap's color channels should be premultiplied
|
|
* by the alpha channel. One of none, premultiply, or default (default).
|
|
*/
|
|
premultiplyAlpha?: PremultiplyAlpha;
|
|
/** The output height. */
|
|
resizeHeight?: number;
|
|
/**
|
|
* Specifies the algorithm to be used for resizing the input to match the
|
|
* output dimensions. One of pixelated, low (default), medium, or high.
|
|
*/
|
|
resizeQuality?: ResizeQuality;
|
|
/** The output width. */
|
|
resizeWidth?: number;
|
|
}
|
|
|
|
/**
|
|
* Create a new {@linkcode ImageBitmap} object from a given source.
|
|
*
|
|
* @param image The image to create an {@linkcode ImageBitmap} from.
|
|
* @param options The options for creating the {@linkcode ImageBitmap}.
|
|
*
|
|
* @category Canvas
|
|
*/
|
|
declare function createImageBitmap(
|
|
image: ImageBitmapSource,
|
|
options?: ImageBitmapOptions,
|
|
): Promise<ImageBitmap>;
|
|
/**
|
|
* Create a new {@linkcode ImageBitmap} object from a given source, cropping
|
|
* to the specified rectangle.
|
|
*
|
|
* @param image The image to create an {@linkcode ImageBitmap} from.
|
|
* @param sx The x coordinate of the top-left corner of the sub-rectangle from
|
|
* which the {@linkcode ImageBitmap} will be cropped.
|
|
* @param sy The y coordinate of the top-left corner of the sub-rectangle from
|
|
* which the {@linkcode ImageBitmap} will be cropped.
|
|
* @param sw The width of the sub-rectangle from which the
|
|
* {@linkcode ImageBitmap} will be cropped.
|
|
* @param sh The height of the sub-rectangle from which the
|
|
* {@linkcode ImageBitmap} will be cropped.
|
|
* @param options The options for creating the {@linkcode ImageBitmap}.
|
|
*
|
|
* @category Canvas
|
|
*/
|
|
declare function createImageBitmap(
|
|
image: ImageBitmapSource,
|
|
sx: number,
|
|
sy: number,
|
|
sw: number,
|
|
sh: number,
|
|
options?: ImageBitmapOptions,
|
|
): Promise<ImageBitmap>;
|
|
|
|
/**
|
|
* `ImageBitmap` interface represents a bitmap image which can be drawn to a canvas.
|
|
*
|
|
* @category Canvas
|
|
*/
|
|
interface ImageBitmap {
|
|
/**
|
|
* The height of the bitmap.
|
|
*/
|
|
readonly height: number;
|
|
/**
|
|
* The width of the bitmap.
|
|
*/
|
|
readonly width: number;
|
|
/**
|
|
* Releases imageBitmap's resources.
|
|
*/
|
|
close(): void;
|
|
}
|
|
|
|
/**
|
|
* `ImageBitmap` represents a bitmap image which can be drawn to a canvas.
|
|
*
|
|
* @category Canvas
|
|
*/
|
|
declare var ImageBitmap: {
|
|
prototype: ImageBitmap;
|
|
new (): ImageBitmap;
|
|
};
|