Canvas2dFilterBackend
Defined in: src/filters/Canvas2dFilterBackend.ts:7
Constructors
new Canvas2dFilterBackend()
new Canvas2dFilterBackend():
Canvas2dFilterBackend
Returns
Properties
resources
resources:
TPipelineResources={}
Defined in: src/filters/Canvas2dFilterBackend.ts:15
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.
Methods
applyFilters()
applyFilters(
filters,sourceElement,sourceWidth,sourceHeight,targetCanvas):void|T2DPipelineState
Defined in: src/filters/Canvas2dFilterBackend.ts:27
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