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Structure for browser decoders. Some work on decoding.

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This commit is contained in:
Jake Archibald
2020-11-06 13:05:12 +00:00
parent 4b8c0178fe
commit ec586bb529
33 changed files with 670 additions and 437 deletions
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11
src/client/lazy-app/Compress/result-cache.ts
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@@ -1,8 +1,6 @@
import { EncoderState, ProcessorState } from '../feature-meta';
import { shallowEqual } from '../../util';
import * as identity from '../../codecs/identity/encoder-meta';
interface CacheResult {
preprocessed: ImageData;
data: ImageData;
@@ -21,8 +19,9 @@ export default class ResultCache {
private readonly _entries: CacheEntry[] = [];
add(entry: CacheEntry) {
if (entry.encoderState.type === identity.type)
if (entry.encoderState.type === 'identity') {
throw Error('Cannot cache identity encodes');
}
// Add the new entry to the start
this._entries.unshift(entry);
// Remove the last entry if we're now bigger than SIZE
@@ -46,13 +45,15 @@ export default class ResultCache {
(processorState as any)[prop],
(entry.processorState as any)[prop],
)
)
) {
return false;
}
}
// Check detailed encoder options
if (!shallowEqual(encoderState.options, entry.encoderState.options))
if (!shallowEqual(encoderState.options, entry.encoderState.options)) {
return false;
}
return true;
});