react-native-image-filter-kit/src/blend-filters/shape-transforms.android.ts

Various image filters for iOS & Android

import { TransformMap } from '../common/shapes'
import { shapes } from './shapes'
import { id } from '../common/util'

type ColorBlendConfig = {
  readonly dstImage: unknown
  readonly srcColor: string
  readonly disableCache?: boolean
  readonly disableIntermediateCaches?: boolean
}

const asNativeBlendConfig = (mode: string) => (config: Object) => ({
  ...config,
  mode,
  name: 'AndroidPorterDuffXfermode'
})

const asNativeBlendColorConfig = (mode: string) => ({
  disableCache,
  dstImage,
  srcColor
}: ColorBlendConfig) => ({
  name: 'AndroidPorterDuffColorFilter',
  image: dstImage,
  color: srcColor,
  disableCache,
  mode
})

const asRenderscriptBlendColorConfig = (name: string) => ({
  srcColor,
  disableIntermediateCaches = true,
  ...config
}: ColorBlendConfig) => ({
  ...config,
  name,
  resizeCanvasTo: 'dstImage',
  srcImage: {
    name: 'AndroidColor',
    color: srcColor,
    disableCache: disableIntermediateCaches
  }
})

export const shapeTransforms: TransformMap<typeof shapes> = {
  PlusBlend: asNativeBlendConfig('ADD'),

  DarkenBlend: asNativeBlendConfig('DARKEN'),

  LightenBlend: asNativeBlendConfig('LIGHTEN'),

  ModulateBlend: asNativeBlendConfig('MULTIPLY'),

  OverlayBlend: asNativeBlendConfig('OVERLAY'),

  ScreenBlend: asNativeBlendConfig('SCREEN'),

  PlusBlendColor: asNativeBlendColorConfig('ADD'),

  DarkenBlendColor: asNativeBlendColorConfig('DARKEN'),

  LightenBlendColor: asNativeBlendColorConfig('LIGHTEN'),

  ModulateBlendColor: asNativeBlendColorConfig('MULTIPLY'),

  MultiplyBlend: id,

  ColorDodgeBlend: id,

  ExclusionBlend: id,

  ColorBurnBlend: id,

  SoftLightBlend: id,

  HueBlend: id,

  DifferenceBlend: id,

  SaturationBlend: id,

  LuminosityBlend: id,

  ColorBlend: id,

  HardLightBlend: id,

  OverlayBlendColor: asNativeBlendColorConfig('OVERLAY'),

  ScreenBlendColor: asNativeBlendColorConfig('SCREEN'),

  ColorDodgeBlendColor: asRenderscriptBlendColorConfig('ColorDodgeBlend'),

  ExclusionBlendColor: asRenderscriptBlendColorConfig('ExclusionBlend'),

  ColorBurnBlendColor: asRenderscriptBlendColorConfig('ColorBurnBlend'),

  SoftLightBlendColor: asRenderscriptBlendColorConfig('SoftLightBlend'),

  HueBlendColor: asRenderscriptBlendColorConfig('HueBlend'),

  ColorBlendColor: asRenderscriptBlendColorConfig('ColorBlend'),

  SaturationBlendColor: asRenderscriptBlendColorConfig('SaturationBlend'),

  LuminosityBlendColor: asRenderscriptBlendColorConfig('LuminosityBlend'),

  DifferenceBlendColor: asRenderscriptBlendColorConfig('DifferenceBlend'),

  HardLightBlendColor: asRenderscriptBlendColorConfig('HardLightBlend'),

  MultiplyBlendColor: asRenderscriptBlendColorConfig('MultiplyBlend')
}