Canvas2dFilterBackend
Constructors
new Canvas2dFilterBackend()
new Canvas2dFilterBackend():
Canvas2dFilterBackend
Returns
Properties
resources
resources:
TPipelineResources={}
Experimental. This object is a sort of repository of help layers used to avoid of recreating them during frequent filtering. If you are previewing a filter with a slider you probably do not want to create help layers every filter step. in this object there will be appended some canvases, created once, resized sometimes cleared never. Clearing is left to the developer.
Defined in
src/filters/Canvas2dFilterBackend.ts:15
Methods
applyFilters()
applyFilters(
filters,sourceElement,sourceWidth,sourceHeight,targetCanvas):void|T2DPipelineState
Apply a set of filters against a source image and draw the filtered output to the provided destination canvas.
Parameters
• filters: BaseFilter<string, Record<string, any>, Record<string, any>>[]
The filter to apply.
• sourceElement: CanvasImageSource
The source to be filtered.
• sourceWidth: number
The width of the source input.
• sourceHeight: number
The height of the source input.
• targetCanvas: HTMLCanvasElement
The destination for filtered output to be drawn.
Returns
void | T2DPipelineState