asciidisco/asciidisco.com
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

first commit

Browse Source
This commit is contained in:
s.golasch
2023-08-01 13:49:46 +02:00
commit 1fc239fd54
20238 changed files with 3112246 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
build/node_modules/upng-js/LICENSE generated vendored Normal file
View File

@@ -0,0 +1,21 @@
MIT License
Copyright (c) 2017 Photopea
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

55
build/node_modules/upng-js/README.md generated vendored Normal file
View File

@@ -0,0 +1,55 @@
# UPNG.js
A small, fast and advanced PNG / APNG encoder and decoder. It is the main PNG engine for [Photopea image editor](https://www.photopea.com).
* [Examples of PNGs minified by UPNG.js](https://blog.photopea.com/png-minifier-inside-photopea.html#examples)
* [Try UPNG.js in Photopea](https://www.photopea.com) - open an image and press File - Save for web, play with the Quality
* [UPNG.Photopea.com](http://upng.photopea.com) - a separate minifier app, that uses UPNG.js
* Support us by [making a donation](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=ivan%40kuckir%2ecom&lc=CZ&item_name=UPNG%2ejs&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted).
Download and include the `UPNG.js` file in your code, or get it from NPM:
```sh
npm install upng-js
```
## Encoder
UPNG.js supports APNG and the interface expects "frames". Regular PNG is just a single-frame animation (single-item array).
#### `UPNG.encode(imgs, w, h, cnum, [dels])`
* `imgs`: array of frames. A frame is an ArrayBuffer containing the pixel data (RGBA, 8 bits per channel)
* `w`, `h` : width and height of the image
* `cnum`: number of colors in the result; 0: all colors (lossless PNG)
* `dels`: array of delays for each frame (only when 2 or more frames)
* returns an ArrayBuffer with binary data of a PNG file
UPNG.js can do a lossy minification of PNG files, similar to [TinyPNG](https://tinypng.com/) and other tools. It performs color quantization using the [k-means algorithm](https://en.wikipedia.org/wiki/K-means_clustering).
Lossy compression is allowed by the last parameter `cnum`. Set it to zero for a lossless compression, or write the number of allowed colors in the image. Smaller values produce smaller files. **Or just use 0 for lossless / 256 for lossy.**
## Decoder
Supports all color types (including Grayscale and Palettes), all channel depths (1, 2, 4, 8, 16), interlaced images etc. Opens PNGs which other libraries can not open (tested with [PngSuite](http://www.schaik.com/pngsuite/)).
#### `UPNG.decode(buffer)`
* `buffer`: ArrayBuffer containing the PNG file
* returns an image object with following properties:
* * `width`: the width of the image
* * `height`: the height of the image
* * `depth`: number of bits per channel
* * `ctype`: color type of the file (Truecolor, Grayscale, Palette ...)
* * `frames`: additional info about frames (frame delays etc.)
* * `tabs`: additional chunks of the PNG file
* * `data`: pixel data of the image
PNG files may have a various number of channels and a various color depth. The interpretation of `data` depends on the current color type and color depth (see the [PNG specification](https://www.w3.org/TR/PNG/)).
#### `UPNG.toRGBA8(img)`
* `img`: PNG image object (returned by UPNG.decode())
* returns an array of frames. A frame is ArrayBuffer of the image in RGBA format, 8 bits per channel.
### Example
var img = UPNG.decode(buff); // put ArrayBuffer of the PNG file into UPNG.decode
var rgba = UPNG.toRGBA8(img)[0]; // UPNG.toRGBA8 returns array of frames, size: width * height * 4 bytes.
PNG format uses the Inflate algorithm. Right now, UPNG.js calls [Pako.js](https://github.com/nodeca/pako) for the Inflate and Deflate method.

820
build/node_modules/upng-js/UPNG.js generated vendored Normal file
View File

@@ -0,0 +1,820 @@
;(function(){
var UPNG = {};
// Make available for import by `require()`
var pako;
if (typeof module == "object") {module.exports = UPNG;} else {window.UPNG = UPNG;}
if (typeof require == "function") {pako = require("pako");} else {pako = window.pako;}
function log() { if (typeof process=="undefined" || process.env.NODE_ENV=="development") console.log.apply(console, arguments); }
(function(UPNG, pako){
UPNG.toRGBA8 = function(out)
{
var w = out.width, h = out.height;
if(out.tabs.acTL==null) return [UPNG.toRGBA8.decodeImage(out.data, w, h, out).buffer];
var frms = [];
if(out.frames[0].data==null) out.frames[0].data = out.data;
var img, empty = new Uint8Array(w*h*4);
for(var i=0; i<out.frames.length; i++)
{
var frm = out.frames[i];
var fx=frm.rect.x, fy=frm.rect.y, fw = frm.rect.width, fh = frm.rect.height;
var fdata = UPNG.toRGBA8.decodeImage(frm.data, fw,fh, out);
if(i==0) img = fdata;
else if(frm.blend ==0) UPNG._copyTile(fdata, fw, fh, img, w, h, fx, fy, 0);
else if(frm.blend ==1) UPNG._copyTile(fdata, fw, fh, img, w, h, fx, fy, 1);
frms.push(img.buffer); img = img.slice(0);
if (frm.dispose==0) {}
else if(frm.dispose==1) UPNG._copyTile(empty, fw, fh, img, w, h, fx, fy, 0);
else if(frm.dispose==2) {
var pi = i-1;
while(out.frames[pi].dispose==2) pi--;
img = new Uint8Array(frms[pi]).slice(0);
}
}
return frms;
}
UPNG.toRGBA8.decodeImage = function(data, w, h, out)
{
var area = w*h, bpp = UPNG.decode._getBPP(out);
var bpl = Math.ceil(w*bpp/8); // bytes per line
var bf = new Uint8Array(area*4), bf32 = new Uint32Array(bf.buffer);
var ctype = out.ctype, depth = out.depth;
var rs = UPNG._bin.readUshort;
//console.log(ctype, depth);
if (ctype==6) { // RGB + alpha
var qarea = area<<2;
if(depth== 8) for(var i=0; i<qarea;i++) { bf[i] = data[i]; /*if((i&3)==3 && data[i]!=0) bf[i]=255;*/ }
if(depth==16) for(var i=0; i<qarea;i++) { bf[i] = data[i<<1]; }
}
else if(ctype==2) { // RGB
var ts=out.tabs["tRNS"], tr=-1, tg=-1, tb=-1;
if(ts) { tr=ts[0]; tg=ts[1]; tb=ts[2]; }
if(depth== 8) for(var i=0; i<area; i++) { var qi=i<<2, ti=i*3; bf[qi] = data[ti]; bf[qi+1] = data[ti+1]; bf[qi+2] = data[ti+2]; bf[qi+3] = 255;
if(tr!=-1 && data[ti] ==tr && data[ti+1] ==tg && data[ti+2] ==tb) bf[qi+3] = 0; }
if(depth==16) for(var i=0; i<area; i++) { var qi=i<<2, ti=i*6; bf[qi] = data[ti]; bf[qi+1] = data[ti+2]; bf[qi+2] = data[ti+4]; bf[qi+3] = 255;
if(tr!=-1 && rs(data,ti)==tr && rs(data,ti+2)==tg && rs(data,ti+4)==tb) bf[qi+3] = 0; }
}
else if(ctype==3) { // palette
var p=out.tabs["PLTE"], ap=out.tabs["tRNS"], tl=ap?ap.length:0;
//console.log(p, ap);
if(depth==1) for(var y=0; y<h; y++) { var s0 = y*bpl, t0 = y*w;
for(var i=0; i<w; i++) { var qi=(t0+i)<<2, j=((data[s0+(i>>3)]>>(7-((i&7)<<0)))& 1), cj=3*j; bf[qi]=p[cj]; bf[qi+1]=p[cj+1]; bf[qi+2]=p[cj+2]; bf[qi+3]=(j<tl)?ap[j]:255; }
}
if(depth==2) for(var y=0; y<h; y++) { var s0 = y*bpl, t0 = y*w;
for(var i=0; i<w; i++) { var qi=(t0+i)<<2, j=((data[s0+(i>>2)]>>(6-((i&3)<<1)))& 3), cj=3*j; bf[qi]=p[cj]; bf[qi+1]=p[cj+1]; bf[qi+2]=p[cj+2]; bf[qi+3]=(j<tl)?ap[j]:255; }
}
if(depth==4) for(var y=0; y<h; y++) { var s0 = y*bpl, t0 = y*w;
for(var i=0; i<w; i++) { var qi=(t0+i)<<2, j=((data[s0+(i>>1)]>>(4-((i&1)<<2)))&15), cj=3*j; bf[qi]=p[cj]; bf[qi+1]=p[cj+1]; bf[qi+2]=p[cj+2]; bf[qi+3]=(j<tl)?ap[j]:255; }
}
if(depth==8) for(var i=0; i<area; i++ ) { var qi=i<<2, j=data[i] , cj=3*j; bf[qi]=p[cj]; bf[qi+1]=p[cj+1]; bf[qi+2]=p[cj+2]; bf[qi+3]=(j<tl)?ap[j]:255; }
}
else if(ctype==4) { // gray + alpha
if(depth== 8) for(var i=0; i<area; i++) { var qi=i<<2, di=i<<1, gr=data[di]; bf[qi]=gr; bf[qi+1]=gr; bf[qi+2]=gr; bf[qi+3]=data[di+1]; }
if(depth==16) for(var i=0; i<area; i++) { var qi=i<<2, di=i<<2, gr=data[di]; bf[qi]=gr; bf[qi+1]=gr; bf[qi+2]=gr; bf[qi+3]=data[di+2]; }
}
else if(ctype==0) { // gray
var tr = out.tabs["tRNS"] ? out.tabs["tRNS"] : -1;
if(depth== 1) for(var i=0; i<area; i++) { var gr=255*((data[i>>3]>>(7 -((i&7) )))& 1), al=(gr==tr*255)?0:255; bf32[i]=(al<<24)|(gr<<16)|(gr<<8)|gr; }
if(depth== 2) for(var i=0; i<area; i++) { var gr= 85*((data[i>>2]>>(6 -((i&3)<<1)))& 3), al=(gr==tr* 85)?0:255; bf32[i]=(al<<24)|(gr<<16)|(gr<<8)|gr; }
if(depth== 4) for(var i=0; i<area; i++) { var gr= 17*((data[i>>1]>>(4 -((i&1)<<2)))&15), al=(gr==tr* 17)?0:255; bf32[i]=(al<<24)|(gr<<16)|(gr<<8)|gr; }
if(depth== 8) for(var i=0; i<area; i++) { var gr=data[i ] , al=(gr ==tr)?0:255; bf32[i]=(al<<24)|(gr<<16)|(gr<<8)|gr; }
if(depth==16) for(var i=0; i<area; i++) { var gr=data[i<<1], al=(rs(data,i<<1)==tr)?0:255; bf32[i]=(al<<24)|(gr<<16)|(gr<<8)|gr; }
}
return bf;
}
UPNG.decode = function(buff)
{
var data = new Uint8Array(buff), offset = 8, bin = UPNG._bin, rUs = bin.readUshort, rUi = bin.readUint;
var out = {tabs:{}, frames:[]};
var dd = new Uint8Array(data.length), doff = 0; // put all IDAT data into it
var fd, foff = 0; // frames
var mgck = [0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a];
for(var i=0; i<8; i++) if(data[i]!=mgck[i]) throw "The input is not a PNG file!";
while(offset<data.length)
{
var len = bin.readUint(data, offset); offset += 4;
var type = bin.readASCII(data, offset, 4); offset += 4;
//log(type,len);
if (type=="IHDR") { UPNG.decode._IHDR(data, offset, out); }
else if(type=="IDAT") {
for(var i=0; i<len; i++) dd[doff+i] = data[offset+i];
doff += len;
}
else if(type=="acTL") {
out.tabs[type] = { num_frames:rUi(data, offset), num_plays:rUi(data, offset+4) };
fd = new Uint8Array(data.length);
}
else if(type=="fcTL") {
if(foff!=0) { var fr = out.frames[out.frames.length-1];
fr.data = UPNG.decode._decompress(out, fd.slice(0,foff), fr.rect.width, fr.rect.height); foff=0;
}
var rct = {x:rUi(data, offset+12),y:rUi(data, offset+16),width:rUi(data, offset+4),height:rUi(data, offset+8)};
var del = rUs(data, offset+22); del = rUs(data, offset+20) / (del==0?100:del);
var frm = {rect:rct, delay:Math.round(del*1000), dispose:data[offset+24], blend:data[offset+25]};
//console.log(frm);
out.frames.push(frm);
}
else if(type=="fdAT") {
for(var i=0; i<len-4; i++) fd[foff+i] = data[offset+i+4];
foff += len-4;
}
else if(type=="pHYs") {
out.tabs[type] = [bin.readUint(data, offset), bin.readUint(data, offset+4), data[offset+8]];
}
else if(type=="cHRM") {
out.tabs[type] = [];
for(var i=0; i<8; i++) out.tabs[type].push(bin.readUint(data, offset+i*4));
}
else if(type=="tEXt") {
if(out.tabs[type]==null) out.tabs[type] = {};
var nz = bin.nextZero(data, offset);
var keyw = bin.readASCII(data, offset, nz-offset);
var text = bin.readASCII(data, nz+1, offset+len-nz-1);
out.tabs[type][keyw] = text;
}
else if(type=="iTXt") {
if(out.tabs[type]==null) out.tabs[type] = {};
var nz = 0, off = offset;
nz = bin.nextZero(data, off);
var keyw = bin.readASCII(data, off, nz-off); off = nz + 1;
var cflag = data[off], cmeth = data[off+1]; off+=2;
nz = bin.nextZero(data, off);
var ltag = bin.readASCII(data, off, nz-off); off = nz + 1;
nz = bin.nextZero(data, off);
var tkeyw = bin.readUTF8(data, off, nz-off); off = nz + 1;
var text = bin.readUTF8(data, off, len-(off-offset));
out.tabs[type][keyw] = text;
}
else if(type=="PLTE") {
out.tabs[type] = bin.readBytes(data, offset, len);
}
else if(type=="hIST") {
var pl = out.tabs["PLTE"].length/3;
out.tabs[type] = []; for(var i=0; i<pl; i++) out.tabs[type].push(rUs(data, offset+i*2));
}
else if(type=="tRNS") {
if (out.ctype==3) out.tabs[type] = bin.readBytes(data, offset, len);
else if(out.ctype==0) out.tabs[type] = rUs(data, offset);
else if(out.ctype==2) out.tabs[type] = [ rUs(data,offset),rUs(data,offset+2),rUs(data,offset+4) ];
//else console.log("tRNS for unsupported color type",out.ctype, len);
}
else if(type=="gAMA") out.tabs[type] = bin.readUint(data, offset)/100000;
else if(type=="sRGB") out.tabs[type] = data[offset];
else if(type=="bKGD")
{
if (out.ctype==0 || out.ctype==4) out.tabs[type] = [rUs(data, offset)];
else if(out.ctype==2 || out.ctype==6) out.tabs[type] = [rUs(data, offset), rUs(data, offset+2), rUs(data, offset+4)];
else if(out.ctype==3) out.tabs[type] = data[offset];
}
else if(type=="IEND") {
if(foff!=0) { var fr = out.frames[out.frames.length-1];
fr.data = UPNG.decode._decompress(out, fd.slice(0,foff), fr.rect.width, fr.rect.height); foff=0;
}
out.data = UPNG.decode._decompress(out, dd, out.width, out.height); break;
}
//else { log("unknown chunk type", type, len); }
offset += len;
var crc = bin.readUint(data, offset); offset += 4;
}
delete out.compress; delete out.interlace; delete out.filter;
return out;
}
UPNG.decode._decompress = function(out, dd, w, h) {
if(out.compress ==0) dd = UPNG.decode._inflate(dd);
if (out.interlace==0) dd = UPNG.decode._filterZero(dd, out, 0, w, h);
else if(out.interlace==1) dd = UPNG.decode._readInterlace(dd, out);
return dd;
}
UPNG.decode._inflate = function(data) { return pako["inflate"](data); }
UPNG.decode._readInterlace = function(data, out)
{
var w = out.width, h = out.height;
var bpp = UPNG.decode._getBPP(out), cbpp = bpp>>3, bpl = Math.ceil(w*bpp/8);
var img = new Uint8Array( h * bpl );
var di = 0;
var starting_row = [ 0, 0, 4, 0, 2, 0, 1 ];
var starting_col = [ 0, 4, 0, 2, 0, 1, 0 ];
var row_increment = [ 8, 8, 8, 4, 4, 2, 2 ];
var col_increment = [ 8, 8, 4, 4, 2, 2, 1 ];
var pass=0;
while(pass<7)
{
var ri = row_increment[pass], ci = col_increment[pass];
var sw = 0, sh = 0;
var cr = starting_row[pass]; while(cr<h) { cr+=ri; sh++; }
var cc = starting_col[pass]; while(cc<w) { cc+=ci; sw++; }
var bpll = Math.ceil(sw*bpp/8);
UPNG.decode._filterZero(data, out, di, sw, sh);
var y=0, row = starting_row[pass];
while(row<h)
{
var col = starting_col[pass];
var cdi = (di+y*bpll)<<3;
while(col<w)
{
if(bpp==1) {
var val = data[cdi>>3]; val = (val>>(7-(cdi&7)))&1;
img[row*bpl + (col>>3)] |= (val << (7-((col&3)<<0)));
}
if(bpp==2) {
var val = data[cdi>>3]; val = (val>>(6-(cdi&7)))&3;
img[row*bpl + (col>>2)] |= (val << (6-((col&3)<<1)));
}
if(bpp==4) {
var val = data[cdi>>3]; val = (val>>(4-(cdi&7)))&15;
img[row*bpl + (col>>1)] |= (val << (4-((col&1)<<2)));
}
if(bpp>=8) {
var ii = row*bpl+col*cbpp;
for(var j=0; j<cbpp; j++) img[ii+j] = data[(cdi>>3)+j];
}
cdi+=bpp; col+=ci;
}
y++; row += ri;
}
if(sw*sh!=0) di += sh * (1 + bpll);
pass = pass + 1;
}
return img;
}
UPNG.decode._getBPP = function(out) {
var noc = [1,null,3,1,2,null,4][out.ctype];
return noc * out.depth;
}
UPNG.decode._filterZero = function(data, out, off, w, h)
{
var bpp = UPNG.decode._getBPP(out), bpl = Math.ceil(w*bpp/8), paeth = UPNG.decode._paeth;
bpp = Math.ceil(bpp/8);
for(var y=0; y<h; y++) {
var i = off+y*bpl, di = i+y+1;
var type = data[di-1];
if (type==0) for(var x= 0; x<bpl; x++) data[i+x] = data[di+x];
else if(type==1) {
for(var x= 0; x<bpp; x++) data[i+x] = data[di+x];
for(var x=bpp; x<bpl; x++) data[i+x] = (data[di+x] + data[i+x-bpp])&255;
}
else if(y==0) {
for(var x= 0; x<bpp; x++) data[i+x] = data[di+x];
if(type==2) for(var x=bpp; x<bpl; x++) data[i+x] = (data[di+x])&255;
if(type==3) for(var x=bpp; x<bpl; x++) data[i+x] = (data[di+x] + (data[i+x-bpp]>>1) )&255;
if(type==4) for(var x=bpp; x<bpl; x++) data[i+x] = (data[di+x] + paeth(data[i+x-bpp], 0, 0) )&255;
}
else {
if(type==2) { for(var x= 0; x<bpl; x++) data[i+x] = (data[di+x] + data[i+x-bpl])&255; }
if(type==3) { for(var x= 0; x<bpp; x++) data[i+x] = (data[di+x] + (data[i+x-bpl]>>1))&255;
for(var x=bpp; x<bpl; x++) data[i+x] = (data[di+x] + ((data[i+x-bpl]+data[i+x-bpp])>>1) )&255; }
if(type==4) { for(var x= 0; x<bpp; x++) data[i+x] = (data[di+x] + paeth(0, data[i+x-bpl], 0))&255;
for(var x=bpp; x<bpl; x++) data[i+x] = (data[di+x] + paeth(data[i+x-bpp], data[i+x-bpl], data[i+x-bpp-bpl]) )&255; }
}
}
return data;
}
UPNG.decode._paeth = function(a,b,c)
{
var p = a+b-c, pa = Math.abs(p-a), pb = Math.abs(p-b), pc = Math.abs(p-c);
if (pa <= pb && pa <= pc) return a;
else if (pb <= pc) return b;
return c;
}
UPNG.decode._IHDR = function(data, offset, out)
{
var bin = UPNG._bin;
out.width = bin.readUint(data, offset); offset += 4;
out.height = bin.readUint(data, offset); offset += 4;
out.depth = data[offset]; offset++;
out.ctype = data[offset]; offset++;
out.compress = data[offset]; offset++;
out.filter = data[offset]; offset++;
out.interlace = data[offset]; offset++;
}
UPNG._bin = {
nextZero : function(data,p) { while(data[p]!=0) p++; return p; },
readUshort : function(buff,p) { return (buff[p]<< 8) | buff[p+1]; },
writeUshort: function(buff,p,n){ buff[p] = (n>>8)&255; buff[p+1] = n&255; },
readUint : function(buff,p) { return (buff[p]*(256*256*256)) + ((buff[p+1]<<16) | (buff[p+2]<< 8) | buff[p+3]); },
writeUint : function(buff,p,n){ buff[p]=(n>>24)&255; buff[p+1]=(n>>16)&255; buff[p+2]=(n>>8)&255; buff[p+3]=n&255; },
readASCII : function(buff,p,l){ var s = ""; for(var i=0; i<l; i++) s += String.fromCharCode(buff[p+i]); return s; },
writeASCII : function(data,p,s){ for(var i=0; i<s.length; i++) data[p+i] = s.charCodeAt(i); },
readBytes : function(buff,p,l){ var arr = []; for(var i=0; i<l; i++) arr.push(buff[p+i]); return arr; },
pad : function(n) { return n.length < 2 ? "0" + n : n; },
readUTF8 : function(buff, p, l) {
var s = "", ns;
for(var i=0; i<l; i++) s += "%" + UPNG._bin.pad(buff[p+i].toString(16));
try { ns = decodeURIComponent(s); }
catch(e) { return UPNG._bin.readASCII(buff, p, l); }
return ns;
}
}
UPNG._copyTile = function(sb, sw, sh, tb, tw, th, xoff, yoff, mode)
{
var w = Math.min(sw,tw), h = Math.min(sh,th);
var si=0, ti=0;
for(var y=0; y<h; y++)
for(var x=0; x<w; x++)
{
if(xoff>=0 && yoff>=0) { si = (y*sw+x)<<2; ti = (( yoff+y)*tw+xoff+x)<<2; }
else { si = ((-yoff+y)*sw-xoff+x)<<2; ti = (y*tw+x)<<2; }
if (mode==0) { tb[ti] = sb[si]; tb[ti+1] = sb[si+1]; tb[ti+2] = sb[si+2]; tb[ti+3] = sb[si+3]; }
else if(mode==1) {
var fa = sb[si+3]*(1/255), fr=sb[si]*fa, fg=sb[si+1]*fa, fb=sb[si+2]*fa;
var ba = tb[ti+3]*(1/255), br=tb[ti]*ba, bg=tb[ti+1]*ba, bb=tb[ti+2]*ba;
var ifa=1-fa, oa = fa+ba*ifa, ioa = (oa==0?0:1/oa);
tb[ti+3] = 255*oa;
tb[ti+0] = (fr+br*ifa)*ioa;
tb[ti+1] = (fg+bg*ifa)*ioa;
tb[ti+2] = (fb+bb*ifa)*ioa;
}
else if(mode==2){ // copy only differences, otherwise zero
var fa = sb[si+3], fr=sb[si], fg=sb[si+1], fb=sb[si+2];
var ba = tb[ti+3], br=tb[ti], bg=tb[ti+1], bb=tb[ti+2];
if(fa==ba && fr==br && fg==bg && fb==bb) { tb[ti]=0; tb[ti+1]=0; tb[ti+2]=0; tb[ti+3]=0; }
else { tb[ti]=fr; tb[ti+1]=fg; tb[ti+2]=fb; tb[ti+3]=fa; }
}
else if(mode==3){ // check if can be blended
var fa = sb[si+3], fr=sb[si], fg=sb[si+1], fb=sb[si+2];
var ba = tb[ti+3], br=tb[ti], bg=tb[ti+1], bb=tb[ti+2];
if(fa==ba && fr==br && fg==bg && fb==bb) continue;
//if(fa!=255 && ba!=0) return false;
if(fa<220 && ba>20) return false;
}
}
return true;
}
UPNG.encode = function(bufs, w, h, ps, dels, forbidPlte)
{
if(ps==null) ps=0;
if(forbidPlte==null) forbidPlte = false;
var data = new Uint8Array(bufs[0].byteLength*bufs.length+100);
var wr=[0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a];
for(var i=0; i<8; i++) data[i]=wr[i];
var offset = 8, bin = UPNG._bin, crc = UPNG.crc.crc, wUi = bin.writeUint, wUs = bin.writeUshort, wAs = bin.writeASCII;
var nimg = UPNG.encode.compressPNG(bufs, w, h, ps, forbidPlte);
wUi(data,offset, 13); offset+=4;
wAs(data,offset,"IHDR"); offset+=4;
wUi(data,offset,w); offset+=4;
wUi(data,offset,h); offset+=4;
data[offset] = nimg.depth; offset++; // depth
data[offset] = nimg.ctype; offset++; // ctype
data[offset] = 0; offset++; // compress
data[offset] = 0; offset++; // filter
data[offset] = 0; offset++; // interlace
wUi(data,offset,crc(data,offset-17,17)); offset+=4; // crc
// 9 bytes to say, that it is sRGB
wUi(data,offset, 1); offset+=4;
wAs(data,offset,"sRGB"); offset+=4;
data[offset] = 1; offset++;
wUi(data,offset,crc(data,offset-5,5)); offset+=4; // crc
var anim = bufs.length>1;
if(anim) {
wUi(data,offset, 8); offset+=4;
wAs(data,offset,"acTL"); offset+=4;
wUi(data,offset, bufs.length); offset+=4;
wUi(data,offset, 0); offset+=4;
wUi(data,offset,crc(data,offset-12,12)); offset+=4; // crc
}
if(nimg.ctype==3) {
var dl = nimg.plte.length;
wUi(data,offset, dl*3); offset+=4;
wAs(data,offset,"PLTE"); offset+=4;
for(var i=0; i<dl; i++){
var ti=i*3, c=nimg.plte[i], r=(c)&255, g=(c>>8)&255, b=(c>>16)&255;
data[offset+ti+0]=r; data[offset+ti+1]=g; data[offset+ti+2]=b;
}
offset+=dl*3;
wUi(data,offset,crc(data,offset-dl*3-4,dl*3+4)); offset+=4; // crc
if(nimg.gotAlpha) {
wUi(data,offset, dl); offset+=4;
wAs(data,offset,"tRNS"); offset+=4;
for(var i=0; i<dl; i++) data[offset+i]=(nimg.plte[i]>>24)&255;
offset+=dl;
wUi(data,offset,crc(data,offset-dl-4,dl+4)); offset+=4; // crc
}
}
var fi = 0;
for(var j=0; j<nimg.frames.length; j++)
{
var fr = nimg.frames[j];
if(anim) {
wUi(data,offset, 26); offset+=4;
wAs(data,offset,"fcTL"); offset+=4;
wUi(data, offset, fi++); offset+=4;
wUi(data, offset, fr.rect.width ); offset+=4;
wUi(data, offset, fr.rect.height); offset+=4;
wUi(data, offset, fr.rect.x); offset+=4;
wUi(data, offset, fr.rect.y); offset+=4;
wUs(data, offset, dels[j]); offset+=2;
wUs(data, offset, 1000); offset+=2;
data[offset] = fr.dispose; offset++; // dispose
data[offset] = fr.blend ; offset++; // blend
wUi(data,offset,crc(data,offset-30,30)); offset+=4; // crc
}
var imgd = fr.cimg, dl = imgd.length;
wUi(data,offset, dl+(j==0?0:4)); offset+=4;
var ioff = offset;
wAs(data,offset,(j==0)?"IDAT":"fdAT"); offset+=4;
if(j!=0) { wUi(data, offset, fi++); offset+=4; }
for(var i=0; i<dl; i++) data[offset+i] = imgd[i];
offset += dl;
wUi(data,offset,crc(data,ioff,offset-ioff)); offset+=4; // crc
}
wUi(data,offset, 0); offset+=4;
wAs(data,offset,"IEND"); offset+=4;
wUi(data,offset,crc(data,offset-4,4)); offset+=4; // crc
return data.buffer.slice(0,offset);
}
UPNG.encode.compressPNG = function(bufs, w, h, ps, forbidPlte)
{
var out = UPNG.encode.compress(bufs, w, h, ps, false, forbidPlte);
for(var i=0; i<bufs.length; i++) {
var frm = out.frames[i], nw=frm.rect.width, nh=frm.rect.height, bpl=frm.bpl, bpp=frm.bpp;
var fdata = new Uint8Array(nh*bpl+nh);
frm.cimg = UPNG.encode._filterZero(frm.img,nh,bpp,bpl,fdata);
}
return out;
}
UPNG.encode.compress = function(bufs, w, h, ps, forGIF, forbidPlte)
{
if(forbidPlte==null) forbidPlte = false;
var ctype = 6, depth = 8, bpp = 4, alphaAnd=255
for(var j=0; j<bufs.length; j++) { // when not quantized, other frames can contain colors, that are not in an initial frame
var img = new Uint8Array(bufs[j]), ilen = img.length;
for(var i=0; i<ilen; i+=4) alphaAnd &= img[i+3];
}
var gotAlpha = (alphaAnd)!=255;
var cmap={}, plte=[]; if(bufs.length!=0) { cmap[0]=0; plte.push(0); if(ps!=0) ps--; }
if(ps!=0) {
var qres = UPNG.quantize(bufs, ps, forGIF); bufs = qres.bufs;
for(var i=0; i<qres.plte.length; i++) { var c=qres.plte[i].est.rgba; if(cmap[c]==null) { cmap[c]=plte.length; plte.push(c); } }
}
else {
// what if ps==0, but there are <=256 colors? we still need to detect, if the palette could be used
for(var j=0; j<bufs.length; j++) { // when not quantized, other frames can contain colors, that are not in an initial frame
var img32 = new Uint32Array(bufs[j]), ilen = img32.length;
for(var i=0; i<ilen; i++) {
var c = img32[i];
if((i<w || (c!=img32[i-1] && c!=img32[i-w])) && cmap[c]==null) { cmap[c]=plte.length; plte.push(c); if(plte.length>=300) break; }
}
}
}
var brute = gotAlpha ? forGIF : false; // brute : frames can only be copied, not "blended"
var cc=plte.length; //console.log(cc);
if(cc<=256 && forbidPlte==false) {
if(cc<= 2) depth=1; else if(cc<= 4) depth=2; else if(cc<=16) depth=4; else depth=8;
if(forGIF) depth=8;
gotAlpha = true;
}
var frms = [];
for(var j=0; j<bufs.length; j++)
{
var cimg = new Uint8Array(bufs[j]), cimg32 = new Uint32Array(cimg.buffer);
var nx=0, ny=0, nw=w, nh=h, blend=0;
if(j!=0 && !brute) {
var tlim = (forGIF || j==1 || frms[frms.length-2].dispose==2)?1:2, tstp = 0, tarea = 1e9;
for(var it=0; it<tlim; it++)
{
var pimg = new Uint8Array(bufs[j-1-it]), p32 = new Uint32Array(bufs[j-1-it]);
var mix=w,miy=h,max=-1,may=-1;
for(var y=0; y<h; y++) for(var x=0; x<w; x++) {
var i = y*w+x;
if(cimg32[i]!=p32[i]) {
if(x<mix) mix=x; if(x>max) max=x;
if(y<miy) miy=y; if(y>may) may=y;
}
}
var sarea = (max==-1) ? 1 : (max-mix+1)*(may-miy+1);
if(sarea<tarea) {
tarea = sarea; tstp = it;
if(max==-1) { nx=ny=0; nw=nh=1; }
else { nx = mix; ny = miy; nw = max-mix+1; nh = may-miy+1; }
}
}
var pimg = new Uint8Array(bufs[j-1-tstp]);
if(tstp==1) frms[frms.length-1].dispose = 2;
var nimg = new Uint8Array(nw*nh*4), nimg32 = new Uint32Array(nimg.buffer);
UPNG. _copyTile(pimg,w,h, nimg,nw,nh, -nx,-ny, 0);
if(UPNG._copyTile(cimg,w,h, nimg,nw,nh, -nx,-ny, 3)) {
UPNG._copyTile(cimg,w,h, nimg,nw,nh, -nx,-ny, 2); blend = 1;
}
else {
UPNG._copyTile(cimg,w,h, nimg,nw,nh, -nx,-ny, 0); blend = 0;
}
cimg = nimg; cimg32 = new Uint32Array(cimg.buffer);
}
var bpl = 4*nw;
if(cc<=256 && forbidPlte==false) {
bpl = Math.ceil(depth*nw/8);
var nimg = new Uint8Array(bpl*nh);
for(var y=0; y<nh; y++) { var i=y*bpl, ii=y*nw;
if (depth==8) for(var x=0; x<nw; x++) nimg[i+(x) ] = (cmap[cimg32[ii+x]] );
else if(depth==4) for(var x=0; x<nw; x++) nimg[i+(x>>1)] |= (cmap[cimg32[ii+x]]<<(4-(x&1)*4));
else if(depth==2) for(var x=0; x<nw; x++) nimg[i+(x>>2)] |= (cmap[cimg32[ii+x]]<<(6-(x&3)*2));
else if(depth==1) for(var x=0; x<nw; x++) nimg[i+(x>>3)] |= (cmap[cimg32[ii+x]]<<(7-(x&7)*1));
}
cimg=nimg; ctype=3; bpp=1;
}
else if(gotAlpha==false && bufs.length==1) { // some next "reduced" frames may contain alpha for blending
var nimg = new Uint8Array(nw*nh*3), area=nw*nh;
for(var i=0; i<area; i++) { var ti=i*3, qi=i*4; nimg[ti]=cimg[qi]; nimg[ti+1]=cimg[qi+1]; nimg[ti+2]=cimg[qi+2]; }
cimg=nimg; ctype=2; bpp=3; bpl=3*nw;
}
frms.push({rect:{x:nx,y:ny,width:nw,height:nh}, img:cimg, bpl:bpl, bpp:bpp, blend:blend, dispose:brute?1:0});
}
return {ctype:ctype, depth:depth, plte:plte, gotAlpha:gotAlpha, frames:frms };
}
UPNG.encode._filterZero = function(img,h,bpp,bpl,data)
{
var fls = [];
for(var t=0; t<5; t++) { if(h*bpl>500000 && (t==2 || t==3 || t==4)) continue;
for(var y=0; y<h; y++) UPNG.encode._filterLine(data, img, y, bpl, bpp, t);
fls.push(pako["deflate"](data)); if(bpp==1) break;
}
var ti, tsize=1e9;
for(var i=0; i<fls.length; i++) if(fls[i].length<tsize) { ti=i; tsize=fls[i].length; }
return fls[ti];
}
UPNG.encode._filterLine = function(data, img, y, bpl, bpp, type)
{
var i = y*bpl, di = i+y, paeth = UPNG.decode._paeth
data[di]=type; di++;
if(type==0) for(var x=0; x<bpl; x++) data[di+x] = img[i+x];
else if(type==1) {
for(var x= 0; x<bpp; x++) data[di+x] = img[i+x];
for(var x=bpp; x<bpl; x++) data[di+x] = (img[i+x]-img[i+x-bpp]+256)&255;
}
else if(y==0) {
for(var x= 0; x<bpp; x++) data[di+x] = img[i+x];
if(type==2) for(var x=bpp; x<bpl; x++) data[di+x] = img[i+x];
if(type==3) for(var x=bpp; x<bpl; x++) data[di+x] = (img[i+x] - (img[i+x-bpp]>>1) +256)&255;
if(type==4) for(var x=bpp; x<bpl; x++) data[di+x] = (img[i+x] - paeth(img[i+x-bpp], 0, 0) +256)&255;
}
else {
if(type==2) { for(var x= 0; x<bpl; x++) data[di+x] = (img[i+x]+256 - img[i+x-bpl])&255; }
if(type==3) { for(var x= 0; x<bpp; x++) data[di+x] = (img[i+x]+256 - (img[i+x-bpl]>>1))&255;
for(var x=bpp; x<bpl; x++) data[di+x] = (img[i+x]+256 - ((img[i+x-bpl]+img[i+x-bpp])>>1))&255; }
if(type==4) { for(var x= 0; x<bpp; x++) data[di+x] = (img[i+x]+256 - paeth(0, img[i+x-bpl], 0))&255;
for(var x=bpp; x<bpl; x++) data[di+x] = (img[i+x]+256 - paeth(img[i+x-bpp], img[i+x-bpl], img[i+x-bpp-bpl]))&255; }
}
}
UPNG.crc = {
table : ( function() {
var tab = new Uint32Array(256);
for (var n=0; n<256; n++) {
var c = n;
for (var k=0; k<8; k++) {
if (c & 1) c = 0xedb88320 ^ (c >>> 1);
else c = c >>> 1;
}
tab[n] = c; }
return tab; })(),
update : function(c, buf, off, len) {
for (var i=0; i<len; i++) c = UPNG.crc.table[(c ^ buf[off+i]) & 0xff] ^ (c >>> 8);
return c;
},
crc : function(b,o,l) { return UPNG.crc.update(0xffffffff,b,o,l) ^ 0xffffffff; }
}
UPNG.quantize = function(bufs, ps, roundAlpha)
{
var imgs = [], totl = 0;
for(var i=0; i<bufs.length; i++) { imgs.push(UPNG.encode.alphaMul(new Uint8Array(bufs[i]), roundAlpha)); totl+=bufs[i].byteLength; }
var nimg = new Uint8Array(totl), nimg32 = new Uint32Array(nimg.buffer), noff=0;
for(var i=0; i<imgs.length; i++) {
var img = imgs[i], il = img.length;
for(var j=0; j<il; j++) nimg[noff+j] = img[j];
noff += il;
}
var root = {i0:0, i1:nimg.length, bst:null, est:null, tdst:0, left:null, right:null }; // basic statistic, extra statistic
root.bst = UPNG.quantize.stats( nimg,root.i0, root.i1 ); root.est = UPNG.quantize.estats( root.bst );
var leafs = [root];
while(leafs.length<ps)
{
var maxL = 0, mi=0;
for(var i=0; i<leafs.length; i++) if(leafs[i].est.L > maxL) { maxL=leafs[i].est.L; mi=i; }
if(maxL<1e-3) break;
var node = leafs[mi];
var s0 = UPNG.quantize.splitPixels(nimg,nimg32, node.i0, node.i1, node.est.e, node.est.eMq255);
var ln = {i0:node.i0, i1:s0, bst:null, est:null, tdst:0, left:null, right:null }; ln.bst = UPNG.quantize.stats( nimg, ln.i0, ln.i1 );
ln.est = UPNG.quantize.estats( ln.bst );
var rn = {i0:s0, i1:node.i1, bst:null, est:null, tdst:0, left:null, right:null }; rn.bst = {R:[], m:[], N:node.bst.N-ln.bst.N};
for(var i=0; i<16; i++) rn.bst.R[i] = node.bst.R[i]-ln.bst.R[i];
for(var i=0; i< 4; i++) rn.bst.m[i] = node.bst.m[i]-ln.bst.m[i];
rn.est = UPNG.quantize.estats( rn.bst );
node.left = ln; node.right = rn;
leafs[mi]=ln; leafs.push(rn);
}
leafs.sort(function(a,b) { return b.bst.N-a.bst.N; });
for(var ii=0; ii<imgs.length; ii++) {
var planeDst = UPNG.quantize.planeDst;
var sb = new Uint8Array(imgs[ii].buffer), tb = new Uint32Array(imgs[ii].buffer), len = sb.length;
var stack = [], si=0;
for(var i=0; i<len; i+=4) {
var r=sb[i]*(1/255), g=sb[i+1]*(1/255), b=sb[i+2]*(1/255), a=sb[i+3]*(1/255);
// exact, but too slow :(
//var nd = UPNG.quantize.getNearest(root, r, g, b, a);
var nd = root;
while(nd.left) nd = (planeDst(nd.est,r,g,b,a)<=0) ? nd.left : nd.right;
tb[i>>2] = nd.est.rgba;
}
imgs[ii]=tb.buffer;
}
return { bufs:imgs, plte:leafs };
}
UPNG.quantize.getNearest = function(nd, r,g,b,a)
{
if(nd.left==null) { nd.tdst = UPNG.quantize.dist(nd.est.q,r,g,b,a); return nd; }
var planeDst = UPNG.quantize.planeDst(nd.est,r,g,b,a);
var node0 = nd.left, node1 = nd.right;
if(planeDst>0) { node0=nd.right; node1=nd.left; }
var ln = UPNG.quantize.getNearest(node0, r,g,b,a);
if(ln.tdst<=planeDst*planeDst) return ln;
var rn = UPNG.quantize.getNearest(node1, r,g,b,a);
return rn.tdst<ln.tdst ? rn : ln;
}
UPNG.quantize.planeDst = function(est, r,g,b,a) { var e = est.e; return e[0]*r + e[1]*g + e[2]*b + e[3]*a - est.eMq; }
UPNG.quantize.dist = function(q, r,g,b,a) { var d0=r-q[0], d1=g-q[1], d2=b-q[2], d3=a-q[3]; return d0*d0+d1*d1+d2*d2+d3*d3; }
UPNG.quantize.splitPixels = function(nimg, nimg32, i0, i1, e, eMq)
{
var vecDot = UPNG.quantize.vecDot;
i1-=4;
var shfs = 0;
while(i0<i1)
{
while(vecDot(nimg, i0, e)<=eMq) i0+=4;
while(vecDot(nimg, i1, e)> eMq) i1-=4;
if(i0>=i1) break;
var t = nimg32[i0>>2]; nimg32[i0>>2] = nimg32[i1>>2]; nimg32[i1>>2]=t;
i0+=4; i1-=4;
}
while(vecDot(nimg, i0, e)>eMq) i0-=4;
return i0+4;
}
UPNG.quantize.vecDot = function(nimg, i, e)
{
return nimg[i]*e[0] + nimg[i+1]*e[1] + nimg[i+2]*e[2] + nimg[i+3]*e[3];
}
UPNG.quantize.stats = function(nimg, i0, i1){
var R = [0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0];
var m = [0,0,0,0];
var N = (i1-i0)>>2;
for(var i=i0; i<i1; i+=4)
{
var r = nimg[i]*(1/255), g = nimg[i+1]*(1/255), b = nimg[i+2]*(1/255), a = nimg[i+3]*(1/255);
//var r = nimg[i], g = nimg[i+1], b = nimg[i+2], a = nimg[i+3];
m[0]+=r; m[1]+=g; m[2]+=b; m[3]+=a;
R[ 0] += r*r; R[ 1] += r*g; R[ 2] += r*b; R[ 3] += r*a;
R[ 5] += g*g; R[ 6] += g*b; R[ 7] += g*a;
R[10] += b*b; R[11] += b*a;
R[15] += a*a;
}
R[4]=R[1]; R[8]=R[2]; R[12]=R[3]; R[9]=R[6]; R[13]=R[7]; R[14]=R[11];
return {R:R, m:m, N:N};
}
UPNG.quantize.estats = function(stats){
var R = stats.R, m = stats.m, N = stats.N;
var m0 = m[0], m1 = m[1], m2 = m[2], m3 = m[3], iN = (N==0 ? 0 : 1/N);
var Rj = [
R[ 0] - m0*m0*iN, R[ 1] - m0*m1*iN, R[ 2] - m0*m2*iN, R[ 3] - m0*m3*iN,
R[ 4] - m1*m0*iN, R[ 5] - m1*m1*iN, R[ 6] - m1*m2*iN, R[ 7] - m1*m3*iN,
R[ 8] - m2*m0*iN, R[ 9] - m2*m1*iN, R[10] - m2*m2*iN, R[11] - m2*m3*iN,
R[12] - m3*m0*iN, R[13] - m3*m1*iN, R[14] - m3*m2*iN, R[15] - m3*m3*iN
];
var A = Rj, M = UPNG.M4;
var b = [0.5,0.5,0.5,0.5], mi = 0, tmi = 0;
if(N!=0)
for(var i=0; i<10; i++) {
b = M.multVec(A, b); tmi = Math.sqrt(M.dot(b,b)); b = M.sml(1/tmi, b);
if(Math.abs(tmi-mi)<1e-9) break; mi = tmi;
}
//b = [0,0,1,0]; mi=N;
var q = [m0*iN, m1*iN, m2*iN, m3*iN];
var eMq255 = M.dot(M.sml(255,q),b);
var ia = (q[3]<0.001) ? 0 : 1/q[3];
return { Cov:Rj, q:q, e:b, L:mi, eMq255:eMq255, eMq : M.dot(b,q),
rgba: (((Math.round(255*q[3])<<24) | (Math.round(255*q[2]*ia)<<16) | (Math.round(255*q[1]*ia)<<8) | (Math.round(255*q[0]*ia)<<0))>>>0) };
}
UPNG.M4 = {
multVec : function(m,v) {
return [
m[ 0]*v[0] + m[ 1]*v[1] + m[ 2]*v[2] + m[ 3]*v[3],
m[ 4]*v[0] + m[ 5]*v[1] + m[ 6]*v[2] + m[ 7]*v[3],
m[ 8]*v[0] + m[ 9]*v[1] + m[10]*v[2] + m[11]*v[3],
m[12]*v[0] + m[13]*v[1] + m[14]*v[2] + m[15]*v[3]
];
},
dot : function(x,y) { return x[0]*y[0]+x[1]*y[1]+x[2]*y[2]+x[3]*y[3]; },
sml : function(a,y) { return [a*y[0],a*y[1],a*y[2],a*y[3]]; }
}
UPNG.encode.alphaMul = function(img, roundA) {
var nimg = new Uint8Array(img.length), area = img.length>>2;
for(var i=0; i<area; i++) {
var qi=i<<2, ia=img[qi+3];
if(roundA) ia = ((ia<128))?0:255;
var a = ia*(1/255);
nimg[qi+0] = img[qi+0]*a; nimg[qi+1] = img[qi+1]*a; nimg[qi+2] = img[qi+2]*a; nimg[qi+3] = ia;
}
return nimg;
}
})(UPNG, pako);
})();

59
build/node_modules/upng-js/package.json generated vendored Normal file
View File

@@ -0,0 +1,59 @@
{
"_from": "upng-js@^2.1.0",
"_id": "upng-js@2.1.0",
"_inBundle": false,
"_integrity": "sha512-d3xzZzpMP64YkjP5pr8gNyvBt7dLk/uGI67EctzDuVp4lCZyVMo0aJO6l/VDlgbInJYDY6cnClLoBp29eKWI6g==",
"_location": "/upng-js",
"_phantomChildren": {},
"_requested": {
"type": "range",
"registry": true,
"raw": "upng-js@^2.1.0",
"name": "upng-js",
"escapedName": "upng-js",
"rawSpec": "^2.1.0",
"saveSpec": null,
"fetchSpec": "^2.1.0"
},
"_requiredBy": [
"/imagemin-upng"
],
"_resolved": "https://registry.npmjs.org/upng-js/-/upng-js-2.1.0.tgz",
"_shasum": "7176e73973db361ca95d0fa14f958385db6b9dd2",
"_spec": "upng-js@^2.1.0",
"_where": "/Users/asciidisco/Desktop/asciidisco.com/build/node_modules/imagemin-upng",
"author": {
"name": "photopea",
"url": "https://github.com/photopea"
},
"bugs": {
"url": "https://github.com/photopea/UPNG.js/issues"
},
"bundleDependencies": false,
"contributors": [
{
"name": "Scimonster",
"url": "https://github.com/Scimonster"
}
],
"dependencies": {
"pako": "^1.0.5"
},
"deprecated": false,
"description": "Small, fast and advanced PNG / APNG encoder and decoder",
"homepage": "https://github.com/photopea/UPNG.js",
"keywords": [
"png",
"apng",
"image",
"conversion"
],
"license": "MIT",
"main": "UPNG",
"name": "upng-js",
"repository": {
"type": "git",
"url": "git+https://github.com/photopea/UPNG.js.git"
},
"version": "2.1.0"
}