File size: 1,203 Bytes
01fdca8 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | import { IOBuffer } from 'iobuffer';
import type { DecodedPng, DecodedApng, DecoderInputType, PngDecoderOptions } from './types';
export default class PngDecoder extends IOBuffer {
private readonly _checkCrc;
private _inflator;
private readonly _png;
private readonly _apng;
private _end;
private _hasPalette;
private _palette;
private _hasTransparency;
private _transparency;
private _compressionMethod;
private _filterMethod;
private _interlaceMethod;
private _colorType;
private _isAnimated;
private _numberOfFrames;
private _numberOfPlays;
private _frames;
private _writingDataChunks;
constructor(data: DecoderInputType, options?: PngDecoderOptions);
decode(): DecodedPng;
decodeApng(): DecodedApng;
private decodeChunk;
private decodeApngChunk;
private decodeIHDR;
private decodeACTL;
private decodeFCTL;
private decodePLTE;
private decodeIDAT;
private decodeFDAT;
private decodetRNS;
private decodeiCCP;
private decodepHYs;
private decodeApngImage;
private disposeFrame;
private addFrameDataToCanvas;
private decodeImage;
private pushDataToFrame;
}
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