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V1_commit_RGC

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Ouijdane IMER
2026-02-11 13:57:54 +01:00
commit ef397eedac
4901 changed files with 292881 additions and 0 deletions
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32
SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/applyUnfilter.js generated vendored Normal file
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import { unfilterAverage, unfilterNone, unfilterPaeth, unfilterSub, unfilterUp, } from './unfilter';
/**
* Apllies filter on scanline based on the filter type.
* @param filterType - The filter type to apply.
* @param currentLine - The current line of pixel data.
* @param newLine - The new line of pixel data.
* @param prevLine - The previous line of pixel data.
* @param passLineBytes - The number of bytes in the pass line.
* @param bytesPerPixel - The number of bytes per pixel.
*/
export function applyUnfilter(filterType, currentLine, newLine, prevLine, passLineBytes, bytesPerPixel) {
switch (filterType) {
case 0:
unfilterNone(currentLine, newLine, passLineBytes);
break;
case 1:
unfilterSub(currentLine, newLine, passLineBytes, bytesPerPixel);
break;
case 2:
unfilterUp(currentLine, newLine, prevLine, passLineBytes);
break;
case 3:
unfilterAverage(currentLine, newLine, prevLine, passLineBytes, bytesPerPixel);
break;
case 4:
unfilterPaeth(currentLine, newLine, prevLine, passLineBytes, bytesPerPixel);
break;
default:
throw new Error(`Unsupported filter: ${filterType}`);
}
}
//# sourceMappingURL=applyUnfilter.js.map

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SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/applyUnfilter.js.map generated vendored Normal file
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SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/crc.js generated vendored Normal file
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const crcTable = [];
for (let n = 0; n < 256; n++) {
let c = n;
for (let k = 0; k < 8; k++) {
if (c & 1) {
c = 0xedb88320 ^ (c >>> 1);
}
else {
c = c >>> 1;
}
}
crcTable[n] = c;
}
const initialCrc = 0xffffffff;
function updateCrc(currentCrc, data, length) {
let c = currentCrc;
for (let n = 0; n < length; n++) {
c = crcTable[(c ^ data[n]) & 0xff] ^ (c >>> 8);
}
return c;
}
function crc(data, length) {
return (updateCrc(initialCrc, data, length) ^ initialCrc) >>> 0;
}
export function checkCrc(buffer, crcLength, chunkName) {
const expectedCrc = buffer.readUint32();
const actualCrc = crc(new Uint8Array(buffer.buffer, buffer.byteOffset + buffer.offset - crcLength - 4, crcLength), crcLength); // "- 4" because we already advanced by reading the CRC
if (actualCrc !== expectedCrc) {
throw new Error(`CRC mismatch for chunk ${chunkName}. Expected ${expectedCrc}, found ${actualCrc}`);
}
}
export function writeCrc(buffer, length) {
buffer.writeUint32(crc(new Uint8Array(buffer.buffer, buffer.byteOffset + buffer.offset - length, length), length));
}
//# sourceMappingURL=crc.js.map

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SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/crc.js.map generated vendored Normal file
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SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/decodeInterlaceAdam7.js generated vendored Normal file
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import { applyUnfilter } from './applyUnfilter';
const uint16 = new Uint16Array([0x00ff]);
const uint8 = new Uint8Array(uint16.buffer);
const osIsLittleEndian = uint8[0] === 0xff;
/**
* Decodes the Adam7 interlaced PNG data.
*
* @param params - DecodeInterlaceNullParams
* @returns - array of pixel data.
*/
export function decodeInterlaceAdam7(params) {
const { data, width, height, channels, depth } = params;
// Adam7 interlacing pattern
const passes = [
{ x: 0, y: 0, xStep: 8, yStep: 8 }, // Pass 1
{ x: 4, y: 0, xStep: 8, yStep: 8 }, // Pass 2
{ x: 0, y: 4, xStep: 4, yStep: 8 }, // Pass 3
{ x: 2, y: 0, xStep: 4, yStep: 4 }, // Pass 4
{ x: 0, y: 2, xStep: 2, yStep: 4 }, // Pass 5
{ x: 1, y: 0, xStep: 2, yStep: 2 }, // Pass 6
{ x: 0, y: 1, xStep: 1, yStep: 2 }, // Pass 7
];
const bytesPerPixel = Math.ceil(depth / 8) * channels;
const resultData = new Uint8Array(height * width * bytesPerPixel);
let offset = 0;
// Process each pass
for (let passIndex = 0; passIndex < 7; passIndex++) {
const pass = passes[passIndex];
// Calculate pass dimensions
const passWidth = Math.ceil((width - pass.x) / pass.xStep);
const passHeight = Math.ceil((height - pass.y) / pass.yStep);
if (passWidth <= 0 || passHeight <= 0)
continue;
const passLineBytes = passWidth * bytesPerPixel;
const prevLine = new Uint8Array(passLineBytes);
// Process each scanline in this pass
for (let y = 0; y < passHeight; y++) {
// First byte is the filter type
const filterType = data[offset++];
const currentLine = data.subarray(offset, offset + passLineBytes);
offset += passLineBytes;
// Create a new line for the unfiltered data
const newLine = new Uint8Array(passLineBytes);
// Apply the appropriate unfilter
applyUnfilter(filterType, currentLine, newLine, prevLine, passLineBytes, bytesPerPixel);
prevLine.set(newLine);
for (let x = 0; x < passWidth; x++) {
const outputX = pass.x + x * pass.xStep;
const outputY = pass.y + y * pass.yStep;
if (outputX >= width || outputY >= height)
continue;
for (let i = 0; i < bytesPerPixel; i++) {
resultData[(outputY * width + outputX) * bytesPerPixel + i] =
newLine[x * bytesPerPixel + i];
}
}
}
}
if (depth === 16) {
const uint16Data = new Uint16Array(resultData.buffer);
if (osIsLittleEndian) {
for (let k = 0; k < uint16Data.length; k++) {
// PNG is always big endian. Swap the bytes.
uint16Data[k] = swap16(uint16Data[k]);
}
}
return uint16Data;
}
else {
return resultData;
}
}
function swap16(val) {
return ((val & 0xff) << 8) | ((val >> 8) & 0xff);
}
//# sourceMappingURL=decodeInterlaceAdam7.js.map

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SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/decodeInterlaceAdam7.js.map generated vendored Normal file
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SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/decodeInterlaceNull.js generated vendored Normal file
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import { unfilterAverage, unfilterNone, unfilterPaeth, unfilterSub, unfilterUp, } from './unfilter';
const uint16 = new Uint16Array([0x00ff]);
const uint8 = new Uint8Array(uint16.buffer);
const osIsLittleEndian = uint8[0] === 0xff;
const empty = new Uint8Array(0);
export function decodeInterlaceNull(params) {
const { data, width, height, channels, depth } = params;
const bytesPerPixel = Math.ceil(depth / 8) * channels;
const bytesPerLine = Math.ceil((depth / 8) * channels * width);
const newData = new Uint8Array(height * bytesPerLine);
let prevLine = empty;
let offset = 0;
let currentLine;
let newLine;
for (let i = 0; i < height; i++) {
currentLine = data.subarray(offset + 1, offset + 1 + bytesPerLine);
newLine = newData.subarray(i * bytesPerLine, (i + 1) * bytesPerLine);
switch (data[offset]) {
case 0:
unfilterNone(currentLine, newLine, bytesPerLine);
break;
case 1:
unfilterSub(currentLine, newLine, bytesPerLine, bytesPerPixel);
break;
case 2:
unfilterUp(currentLine, newLine, prevLine, bytesPerLine);
break;
case 3:
unfilterAverage(currentLine, newLine, prevLine, bytesPerLine, bytesPerPixel);
break;
case 4:
unfilterPaeth(currentLine, newLine, prevLine, bytesPerLine, bytesPerPixel);
break;
default:
throw new Error(`Unsupported filter: ${data[offset]}`);
}
prevLine = newLine;
offset += bytesPerLine + 1;
}
if (depth === 16) {
const uint16Data = new Uint16Array(newData.buffer);
if (osIsLittleEndian) {
for (let k = 0; k < uint16Data.length; k++) {
// PNG is always big endian. Swap the bytes.
uint16Data[k] = swap16(uint16Data[k]);
}
}
return uint16Data;
}
else {
return newData;
}
}
function swap16(val) {
return ((val & 0xff) << 8) | ((val >> 8) & 0xff);
}
//# sourceMappingURL=decodeInterlaceNull.js.map

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SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/decodeInterlaceNull.js.map generated vendored Normal file
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22
SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/signature.js generated vendored Normal file
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// https://www.w3.org/TR/PNG/#5PNG-file-signature
const pngSignature = Uint8Array.of(137, 80, 78, 71, 13, 10, 26, 10);
export function writeSignature(buffer) {
buffer.writeBytes(pngSignature);
}
export function checkSignature(buffer) {
if (!hasPngSignature(buffer.readBytes(pngSignature.length))) {
throw new Error('wrong PNG signature');
}
}
export function hasPngSignature(array) {
if (array.length < pngSignature.length) {
return false;
}
for (let i = 0; i < pngSignature.length; i++) {
if (array[i] !== pngSignature[i]) {
return false;
}
}
return true;
}
//# sourceMappingURL=signature.js.map

1
SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/signature.js.map generated vendored Normal file
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51
SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/text.js generated vendored Normal file
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import { writeCrc } from './crc';
// https://www.w3.org/TR/png/#11tEXt
export const textChunkName = 'tEXt';
const NULL = 0;
const latin1Decoder = new TextDecoder('latin1');
function validateKeyword(keyword) {
validateLatin1(keyword);
if (keyword.length === 0 || keyword.length > 79) {
throw new Error('keyword length must be between 1 and 79');
}
}
// eslint-disable-next-line no-control-regex
const latin1Regex = /^[\u0000-\u00FF]*$/;
function validateLatin1(text) {
if (!latin1Regex.test(text)) {
throw new Error('invalid latin1 text');
}
}
export function decodetEXt(text, buffer, length) {
const keyword = readKeyword(buffer);
text[keyword] = readLatin1(buffer, length - keyword.length - 1);
}
export function encodetEXt(buffer, keyword, text) {
validateKeyword(keyword);
validateLatin1(text);
const length = keyword.length + 1 /* NULL */ + text.length;
buffer.writeUint32(length);
buffer.writeChars(textChunkName);
buffer.writeChars(keyword);
buffer.writeByte(NULL);
buffer.writeChars(text);
writeCrc(buffer, length + 4);
}
// https://www.w3.org/TR/png/#11keywords
export function readKeyword(buffer) {
buffer.mark();
while (buffer.readByte() !== NULL) {
/* advance */
}
const end = buffer.offset;
buffer.reset();
const keyword = latin1Decoder.decode(buffer.readBytes(end - buffer.offset - 1));
// NULL
buffer.skip(1);
validateKeyword(keyword);
return keyword;
}
export function readLatin1(buffer, length) {
return latin1Decoder.decode(buffer.readBytes(length));
}
//# sourceMappingURL=text.js.map

1
SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/text.js.map generated vendored Normal file
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85
SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/unfilter.js generated vendored Normal file
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export function unfilterNone(currentLine, newLine, bytesPerLine) {
for (let i = 0; i < bytesPerLine; i++) {
newLine[i] = currentLine[i];
}
}
export function unfilterSub(currentLine, newLine, bytesPerLine, bytesPerPixel) {
let i = 0;
for (; i < bytesPerPixel; i++) {
// just copy first bytes
newLine[i] = currentLine[i];
}
for (; i < bytesPerLine; i++) {
newLine[i] = (currentLine[i] + newLine[i - bytesPerPixel]) & 0xff;
}
}
export function unfilterUp(currentLine, newLine, prevLine, bytesPerLine) {
let i = 0;
if (prevLine.length === 0) {
// just copy bytes for first line
for (; i < bytesPerLine; i++) {
newLine[i] = currentLine[i];
}
}
else {
for (; i < bytesPerLine; i++) {
newLine[i] = (currentLine[i] + prevLine[i]) & 0xff;
}
}
}
export function unfilterAverage(currentLine, newLine, prevLine, bytesPerLine, bytesPerPixel) {
let i = 0;
if (prevLine.length === 0) {
for (; i < bytesPerPixel; i++) {
newLine[i] = currentLine[i];
}
for (; i < bytesPerLine; i++) {
newLine[i] = (currentLine[i] + (newLine[i - bytesPerPixel] >> 1)) & 0xff;
}
}
else {
for (; i < bytesPerPixel; i++) {
newLine[i] = (currentLine[i] + (prevLine[i] >> 1)) & 0xff;
}
for (; i < bytesPerLine; i++) {
newLine[i] =
(currentLine[i] + ((newLine[i - bytesPerPixel] + prevLine[i]) >> 1)) &
0xff;
}
}
}
export function unfilterPaeth(currentLine, newLine, prevLine, bytesPerLine, bytesPerPixel) {
let i = 0;
if (prevLine.length === 0) {
for (; i < bytesPerPixel; i++) {
newLine[i] = currentLine[i];
}
for (; i < bytesPerLine; i++) {
newLine[i] = (currentLine[i] + newLine[i - bytesPerPixel]) & 0xff;
}
}
else {
for (; i < bytesPerPixel; i++) {
newLine[i] = (currentLine[i] + prevLine[i]) & 0xff;
}
for (; i < bytesPerLine; i++) {
newLine[i] =
(currentLine[i] +
paethPredictor(newLine[i - bytesPerPixel], prevLine[i], prevLine[i - bytesPerPixel])) &
0xff;
}
}
}
function paethPredictor(a, b, c) {
const p = a + b - c;
const pa = Math.abs(p - a);
const pb = Math.abs(p - b);
const pc = Math.abs(p - c);
if (pa <= pb && pa <= pc)
return a;
else if (pb <= pc)
return b;
else
return c;
}
//# sourceMappingURL=unfilter.js.map

1
SuiviREForamteur/node_modules/fast-png/lib-esm/helpers/unfilter.js.map generated vendored Normal file
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