forked from external-repos/squoosh
347 lines
12 KiB
TypeScript
347 lines
12 KiB
TypeScript
import { h, Component } from 'preact';
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import { bind } from '../../lib/initial-util';
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import { inputFieldCheckedAsNumber, inputFieldValueAsNumber, preventDefault } from '../../lib/util';
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import { EncodeOptions, WebPImageHint } from './encoder-meta';
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import * as style from '../../components/Options/style.scss';
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import Checkbox from '../../components/checkbox';
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import Expander from '../../components/expander';
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import Select from '../../components/select';
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import Range from '../../components/range';
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import linkState from 'linkstate';
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interface Props {
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options: EncodeOptions;
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onChange(newOptions: EncodeOptions): void;
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}
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interface State {
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showAdvanced: boolean;
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}
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// From kLosslessPresets in config_enc.c
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// The format is [method, quality].
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const losslessPresets:[number, number][] = [
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[0, 0], [1, 20], [2, 25], [3, 30], [3, 50],
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[4, 50], [4, 75], [4, 90], [5, 90], [6, 100],
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];
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const losslessPresetDefault = 6;
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function determineLosslessQuality(quality: number, method: number): number {
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const index = losslessPresets.findIndex(
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([presetMethod, presetQuality]) => presetMethod === method && presetQuality === quality,
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);
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if (index !== -1) return index;
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// Quality doesn't match one of the presets.
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// This can happen when toggling 'lossless'.
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return losslessPresetDefault;
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}
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export default class WebPEncoderOptions extends Component<Props, State> {
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state: State = {
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showAdvanced: false,
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};
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@bind
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onChange(event: Event) {
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const form = (event.currentTarget as HTMLInputElement).closest('form') as HTMLFormElement;
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const lossless = inputFieldCheckedAsNumber(form.lossless);
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const { options } = this.props;
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const losslessPresetValue = inputFieldValueAsNumber(
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form.lossless_preset, determineLosslessQuality(options.quality, options.method),
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);
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const newOptions: EncodeOptions = {
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// Copy over options the form doesn't care about, eg emulate_jpeg_size
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...options,
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// And now stuff from the form:
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lossless,
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// Special-cased inputs:
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// In lossless mode, the quality is derived from the preset.
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quality: lossless ?
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losslessPresets[losslessPresetValue][1] :
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inputFieldValueAsNumber(form.quality, options.quality),
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// In lossless mode, the method is derived from the preset.
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method: lossless ?
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losslessPresets[losslessPresetValue][0] :
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inputFieldValueAsNumber(form.method_input, options.method),
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image_hint: inputFieldCheckedAsNumber(form.image_hint, options.image_hint) ?
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WebPImageHint.WEBP_HINT_GRAPH :
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WebPImageHint.WEBP_HINT_DEFAULT,
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// .checked
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exact: inputFieldCheckedAsNumber(form.exact, options.exact),
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alpha_compression: inputFieldCheckedAsNumber(
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form.alpha_compression, options.alpha_compression,
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),
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autofilter: inputFieldCheckedAsNumber(form.autofilter, options.autofilter),
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filter_type: inputFieldCheckedAsNumber(form.filter_type, options.filter_type),
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use_sharp_yuv: inputFieldCheckedAsNumber(form.use_sharp_yuv, options.use_sharp_yuv),
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// .value
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near_lossless: 100 - inputFieldValueAsNumber(form.near_lossless, 100 - options.near_lossless),
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alpha_quality: inputFieldValueAsNumber(form.alpha_quality, options.alpha_quality),
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alpha_filtering: inputFieldValueAsNumber(form.alpha_filtering, options.alpha_filtering),
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sns_strength: inputFieldValueAsNumber(form.sns_strength, options.sns_strength),
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filter_strength: inputFieldValueAsNumber(form.filter_strength, options.filter_strength),
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filter_sharpness:
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7 - inputFieldValueAsNumber(form.filter_sharpness, 7 - options.filter_sharpness),
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pass: inputFieldValueAsNumber(form.pass, options.pass),
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preprocessing: inputFieldValueAsNumber(form.preprocessing, options.preprocessing),
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segments: inputFieldValueAsNumber(form.segments, options.segments),
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partitions: inputFieldValueAsNumber(form.partitions, options.partitions),
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};
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this.props.onChange(newOptions);
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}
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private _losslessSpecificOptions(options: EncodeOptions) {
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return (
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<div key="lossless">
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<div class={style.optionOneCell}>
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<Range
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name="lossless_preset"
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min="0"
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max="9"
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value={determineLosslessQuality(options.quality, options.method)}
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onInput={this.onChange}
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>
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Effort:
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</Range>
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</div>
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<div class={style.optionOneCell}>
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<Range
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name="near_lossless"
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min="0"
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max="100"
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value={'' + (100 - options.near_lossless)}
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onInput={this.onChange}
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>
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Slight loss:
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</Range>
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</div>
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<label class={style.optionInputFirst}>
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{/*
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Although there are 3 different kinds of image hint, webp only
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seems to do something with the 'graph' type, and I don't really
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understand what it does.
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*/}
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<Checkbox
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name="image_hint"
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checked={options.image_hint === WebPImageHint.WEBP_HINT_GRAPH}
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onChange={this.onChange}
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/>
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Discrete tone image
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</label>
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</div>
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);
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}
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private _lossySpecificOptions(options: EncodeOptions) {
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const { showAdvanced } = this.state;
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return (
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<div key="lossy">
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<div class={style.optionOneCell}>
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<Range
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name="method_input"
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min="0"
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max="6"
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value={options.method}
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onInput={this.onChange}
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>
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Effort:
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</Range>
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</div>
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<div class={style.optionOneCell}>
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<Range
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name="quality"
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min="0"
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max="100"
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step="0.1"
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value={options.quality}
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onInput={this.onChange}
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>
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Quality:
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</Range>
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</div>
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<label class={style.optionInputFirst}>
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<Checkbox
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checked={showAdvanced}
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onChange={linkState(this, 'showAdvanced')}
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/>
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Show advanced settings
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</label>
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<Expander>
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{showAdvanced ?
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<div>
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<label class={style.optionInputFirst}>
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<Checkbox
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name="alpha_compression"
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checked={!!options.alpha_compression}
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onChange={this.onChange}
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/>
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Compress alpha
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</label>
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<div class={style.optionOneCell}>
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<Range
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name="alpha_quality"
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min="0"
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max="100"
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value={options.alpha_quality}
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onInput={this.onChange}
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>
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Alpha quality:
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</Range>
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</div>
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<div class={style.optionOneCell}>
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<Range
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name="alpha_filtering"
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min="0"
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max="2"
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value={options.alpha_filtering}
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onInput={this.onChange}
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>
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Alpha filter quality:
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</Range>
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</div>
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<label class={style.optionInputFirst}>
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<Checkbox
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name="autofilter"
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checked={!!options.autofilter}
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onChange={this.onChange}
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/>
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Auto adjust filter strength
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</label>
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<Expander>
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{options.autofilter ? null :
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<div class={style.optionOneCell}>
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<Range
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name="filter_strength"
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min="0"
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max="100"
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value={options.filter_strength}
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onInput={this.onChange}
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>
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Filter strength:
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</Range>
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</div>
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}
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</Expander>
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<label class={style.optionInputFirst}>
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<Checkbox
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name="filter_type"
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checked={!!options.filter_type}
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onChange={this.onChange}
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/>
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Strong filter
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</label>
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<div class={style.optionOneCell}>
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<Range
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name="filter_sharpness"
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min="0"
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max="7"
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value={7 - options.filter_sharpness}
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onInput={this.onChange}
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>
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Filter sharpness:
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</Range>
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</div>
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<label class={style.optionInputFirst}>
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<Checkbox
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name="use_sharp_yuv"
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checked={!!options.use_sharp_yuv}
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onChange={this.onChange}
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/>
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Sharp RGB→YUV conversion
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</label>
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<div class={style.optionOneCell}>
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<Range
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name="pass"
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min="1"
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max="10"
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value={options.pass}
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onInput={this.onChange}
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>
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Passes:
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</Range>
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</div>
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<div class={style.optionOneCell}>
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<Range
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name="sns_strength"
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min="0"
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max="100"
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value={options.sns_strength}
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onInput={this.onChange}
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>
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Spacial noise shaping:
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</Range>
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</div>
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<label class={style.optionTextFirst}>
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Preprocess:
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<Select
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name="preprocessing"
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value={options.preprocessing}
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onChange={this.onChange}
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>
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<option value="0">None</option>
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<option value="1">Segment smooth</option>
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<option value="2">Pseudo-random dithering</option>
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</Select>
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</label>
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<div class={style.optionOneCell}>
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<Range
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name="segments"
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min="1"
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max="4"
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value={options.segments}
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onInput={this.onChange}
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>
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Segments:
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</Range>
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</div>
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<div class={style.optionOneCell}>
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<Range
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name="partitions"
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min="0"
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max="3"
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value={options.partitions}
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onInput={this.onChange}
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>
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Partitions:
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</Range>
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</div>
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</div>
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: null
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}
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</Expander>
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</div>
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);
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}
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render({ options }: Props) {
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// I'm rendering both lossy and lossless forms, as it becomes much easier when
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// gathering the data.
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return (
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<form class={style.optionsSection} onSubmit={preventDefault}>
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<label class={style.optionInputFirst}>
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<Checkbox
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name="lossless"
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checked={!!options.lossless}
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onChange={this.onChange}
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/>
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Lossless
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</label>
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{options.lossless
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? this._losslessSpecificOptions(options)
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: this._lossySpecificOptions(options)
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}
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<label class={style.optionInputFirst}>
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<Checkbox
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name="exact"
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checked={!!options.exact}
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onChange={this.onChange}
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/>
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Preserve transparent data
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</label>
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</form>
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);
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}
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}
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