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Remove png encoder

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Bill 2021-07-30 20:12:02 -04:00
parent 6c0bb8576a
commit 4b11498702
1 changed files with 0 additions and 146 deletions
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146
src/nitro/utils/PNGEncoder.ts
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@ -1,146 +0,0 @@
import { RenderTexture } from '@pixi/core';
import { BinaryWriter } from '../../core/communication/codec/BinaryWriter';
import { TextureUtils } from '../../room';
export class PNGEncoder
{
private static crcTable: number[];
private static crcTableComputed: boolean = false;
public static encode(texture: RenderTexture): ArrayBuffer
{
if(!texture) return null;
const canvas = TextureUtils.generateCanvas(texture);
if(!canvas) return null;
const width = canvas.width;
const height = canvas.height;
const context = canvas.getContext('2d');
const imageData = context.getImageData(0, 0, width, height);
const writer1 = new BinaryWriter();
writer1.writeInt(2303741511);
writer1.writeInt(218765834);
const writer2 = new BinaryWriter();
writer2.writeInt(width);
writer2.writeInt(height);
writer2.writeInt(134610944);
writer2.writeByte(0);
PNGEncoder.writeChunk(writer1, 1229472850, writer2);
let _local_5 = 0;
const imagePixelData: number[] = [];
while(_local_5 < texture.height)
{
imagePixelData.push(0);
let _local_7 = 0;
while(_local_7 < texture.width)
{
const _local_6 = PNGEncoder.getPixel(imageData.data, imageData.width, _local_7, _local_5);
imagePixelData.push(Math.abs(((_local_6 & 0xFFFFFF) << 8) | 0xFF));
//writer3.writeInt((((_local_6 & 0xFFFFFF) << 8) | 0xFF));
_local_7++;
}
_local_5++;
}
// console.log(imagePixelData);
// const writer4 = new BinaryWriter();
// const defaultZlibOptions: DeflateFunctionOptions = {
// level: 3,
// };
// writer4.writeBytes(deflate(new Uint8Array(imagePixelData), defaultZlibOptions));
// PNGEncoder.writeChunk(writer1, 1229209940, writer4);
// PNGEncoder.writeChunk(writer1, 1229278788, null);
return writer1.getBuffer();
}
private static getPixel(imageData: Uint8ClampedArray, width: number, x: number, y: number): number
{
const r = imageData[ ((y*(width*4)) + (x*4)) + 0 ];
const g = imageData[ ((y*(width*4)) + (x*4)) + 1 ];
const b = imageData[ ((y*(width*4)) + (x*4)) + 2 ];
const a = imageData[ ((y*(width*4)) + (x*4)) + 3 ];
return (r << 16 | g << 8 | b | a << 24);
}
private static writeChunk(writer1: BinaryWriter, _arg_2: number, writer2: BinaryWriter):void
{
if(!PNGEncoder.crcTableComputed)
{
PNGEncoder.crcTableComputed = true;
PNGEncoder.crcTable = [];
let _local_9 = 0;
while(_local_9 < 0x0100)
{
let _local_8 = _local_9;
let _local_10 = 0;
while(_local_10 < 8)
{
if((_local_8 & 0x01))
{
_local_8 = (3988292384 ^ (_local_8 >>> 1));
}
else
{
_local_8 = (_local_8 >>> 1);
}
_local_10++;
}
PNGEncoder.crcTable[_local_9] = _local_8;
_local_9++;
}
}
let _local_4 = 0;
if(writer2 !== null) _local_4 = writer2.getBuffer().byteLength;
writer1.writeInt(_local_4);
const _local_5: number = writer1.position;
writer1.writeInt(_arg_2);
if(writer2 !== null) writer1.writeBytes(writer2.getBuffer());
const _local_6: number = writer1.position;
writer1.position = _local_5;
let _local_8 = 0xFFFFFFFF;
let _local_7 = 0;
const int8View = new Uint8Array(writer1.getBuffer());
while(_local_7 < (_local_6 - _local_5))
{
_local_8 = (PNGEncoder.crcTable[((_local_8 ^ int8View[--writer1.position]) & 0xFF)] ^ (_local_8 >>> 8));
_local_7++;
}
_local_8 = (_local_8 ^ 0xFFFFFFFF);
writer1.position = _local_6;
writer1.writeInt(_local_8);
}
}