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fix speed of writing pixel data

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This commit is contained in:
Dank074 2021-07-29 20:06:33 -05:00
parent 12babf62e6
commit eb7d98d6ba
2 changed files with 14 additions and 9 deletions
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2
src/core/communication/codec/BinaryWriter.ts
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@ -20,7 +20,7 @@ export class BinaryWriter
return this; return this;
} }
public writeBytes(bytes: ArrayBuffer): BinaryWriter public writeBytes(bytes: ArrayBuffer | number[]): BinaryWriter
{ {
const array = new Uint8Array(bytes); const array = new Uint8Array(bytes);

21
src/nitro/utils/PNGEncoder.ts
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@ -35,7 +35,9 @@ export class PNGEncoder
const writer3 = new BinaryWriter(); const writer3 = new BinaryWriter();
let _local_5 = 0; let _local_5 = 0;
let index = 0;
const imagePixelData: number[] = new Array(texture.width * texture.height);
while(_local_5 < texture.height) while(_local_5 < texture.height)
{ {
writer3.writeByte(0); writer3.writeByte(0);
@ -44,28 +46,31 @@ export class PNGEncoder
while(_local_7 < texture.width) while(_local_7 < texture.width)
{ {
const _local_6 = PNGEncoder.getPixel(imageData, _local_7, _local_5); const _local_6 = PNGEncoder.getPixel(imageData.data, imageData.width, _local_7, _local_5);
imagePixelData[index] = (((_local_6 & 0xFFFFFF) << 8) | 0xFF);
writer3.writeInt((((_local_6 & 0xFFFFFF) << 8) | 0xFF)); //writer3.writeInt((((_local_6 & 0xFFFFFF) << 8) | 0xFF));
_local_7++; _local_7++;
index++;
} }
_local_5++; _local_5++;
} }
writer3.writeBytes(imagePixelData);
PNGEncoder.writeChunk(writer1, 1229209940, writer3); PNGEncoder.writeChunk(writer1, 1229209940, writer3);
PNGEncoder.writeChunk(writer1, 1229278788, null); PNGEncoder.writeChunk(writer1, 1229278788, null);
return writer1.getBuffer(); return writer1.getBuffer();
} }
private static getPixel(imageData: ImageData, x: number, y: number): number private static getPixel(imageData: Uint8ClampedArray, width: number, x: number, y: number): number
{ {
const r = imageData.data[ ((y*(imageData.width*4)) + (x*4)) + 0 ]; const r = imageData[ ((y*(width*4)) + (x*4)) + 0 ];
const g = imageData.data[ ((y*(imageData.width*4)) + (x*4)) + 1 ]; const g = imageData[ ((y*(width*4)) + (x*4)) + 1 ];
const b = imageData.data[ ((y*(imageData.width*4)) + (x*4)) + 2 ]; const b = imageData[ ((y*(width*4)) + (x*4)) + 2 ];
const a = imageData.data[ ((y*(imageData.width*4)) + (x*4)) + 3 ]; const a = imageData[ ((y*(width*4)) + (x*4)) + 3 ];
return (r << 16 | g << 8 | b | a << 24); return (r << 16 | g << 8 | b | a << 24);
} }