Merge remote-tracking branch 'upstream' into image-ext

This commit is contained in:
Per Bothner
2026-06-07 13:47:27 -07:00
418 changed files with 7902 additions and 4052 deletions
+1 -1
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@@ -15,7 +15,7 @@ test.beforeAll(async ({ browser }) => {
});
test.afterAll(async () => await ctx.page.close());
test.describe('Search Tests', () => {
test.describe('AttachAddon', () => {
test.beforeEach(async () => {
await ctx.proxy.reset();
+32 -2
View File
@@ -78,13 +78,43 @@ export class BrowserClipboardProvider implements IClipboardProvider {
}
}
/**
* TODO: Once the base64 handling on Uint8Arrays is more common,
* remove the btoa/atob fallbacks below.
*/
interface IUint8ArrayB64 extends Uint8Array {
toBase64(): string;
}
interface IUint8ArrayB64Ctor extends Uint8ArrayConstructor {
fromBase64(s: string): IUint8ArrayB64;
}
export class Base64 implements IBase64 {
public encodeText(data: string): string {
return btoa(data);
const bytes = new TextEncoder().encode(data) as IUint8ArrayB64;
if (bytes.toBase64 !== undefined) {
return bytes.toBase64();
}
let bin = '';
for (let i = 0; i < bytes.length; i++) {
bin += String.fromCharCode(bytes[i]);
}
return btoa(bin);
}
public decodeText(data: string): string {
if ((Uint8Array as IUint8ArrayB64Ctor).fromBase64 !== undefined) {
try {
return new TextDecoder().decode((Uint8Array as IUint8ArrayB64Ctor).fromBase64(data));
} catch {}
return '';
}
try {
return atob(data);
const bin = atob(data);
const bytes = new Uint8Array(bin.length);
for (let i = 0; i < bin.length; ++i) {
bytes[i] = bin.charCodeAt(i);
}
return new TextDecoder().decode(bytes);
} catch {}
return '';
}
@@ -29,7 +29,7 @@ test.describe('ClipboardAddon', () => {
await ctx.page.context().grantPermissions(['clipboard-read', 'clipboard-write']);
}
await ctx.page.evaluate(`
window.term.reset()
window.term.reset();
window.clipboard?.dispose();
window.clipboard = new ClipboardAddon();
window.term.loadAddon(window.clipboard);
@@ -92,4 +92,22 @@ test.describe('ClipboardAddon', () => {
deepEqual(await ctx.page.evaluate(() => window.navigator.clipboard.readText()), '');
});
});
test.describe('non-ASCII', () => {
const testDataEncoded = '4oKsbWzDpMO8dMOf';
const testDataDecoded = '€mläütß';
test('write simple string', async () => {
await ctx.proxy.write(`\x1b]52;c;${testDataEncoded}\x07`);
deepEqual(await ctx.page.evaluate(() => window.navigator.clipboard.readText()), testDataDecoded);
});
test('read simple string', async () => {
await ctx.page.evaluate(`
window.data2 = [];
window.term.onData(e => data2.push(e));
`);
await ctx.page.evaluate((d) => window.navigator.clipboard.writeText(d), testDataDecoded);
await ctx.proxy.write(`\x1b]52;c;?\x07`);
deepEqual(await ctx.page.evaluate('window.data2'), [`\x1b]52;c;${testDataEncoded}\x07`]);
});
});
});
+1 -1
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@@ -82,7 +82,7 @@ declare module '@xterm/addon-clipboard' {
/**
* The clipboard provider interface that enables xterm.js to access the browser clipboard.
*
* Note this this clipboard provider does not implement own cut buffers as xterm does,
* Note that this clipboard provider does not implement own cut buffers as xterm does,
* but redirect the selection parameter always to navigator.clipboard.
*/
export class BrowserClipboardProvider implements IClipboardProvider{
+6 -6
View File
@@ -74,14 +74,14 @@ export class FitAddon implements ITerminalAddon, IFitApi {
: (this._terminal.options.scrollbar?.width ?? ViewportConstants.DEFAULT_SCROLL_BAR_WIDTH));
const parentElementStyle = _getComputedStyle(this._terminal.element.parentElement);
const parentElementHeight = parseInt(parentElementStyle.getPropertyValue('height'));
const parentElementWidth = Math.max(0, parseInt(parentElementStyle.getPropertyValue('width')));
const parentElementHeight = Math.max(0, parseInt(parentElementStyle.getPropertyValue('height'), 10) || 0);
const parentElementWidth = Math.max(0, parseInt(parentElementStyle.getPropertyValue('width'), 10) || 0);
const elementStyle = _getComputedStyle(this._terminal.element);
const elementPadding = {
top: parseInt(elementStyle.getPropertyValue('padding-top')),
bottom: parseInt(elementStyle.getPropertyValue('padding-bottom')),
right: parseInt(elementStyle.getPropertyValue('padding-right')),
left: parseInt(elementStyle.getPropertyValue('padding-left'))
top: parseInt(elementStyle.getPropertyValue('padding-top'), 10) || 0,
bottom: parseInt(elementStyle.getPropertyValue('padding-bottom'), 10) || 0,
right: parseInt(elementStyle.getPropertyValue('padding-right'), 10) || 0,
left: parseInt(elementStyle.getPropertyValue('padding-left'), 10) || 0
};
const elementPaddingVer = elementPadding.top + elementPadding.bottom;
const elementPaddingHor = elementPadding.right + elementPadding.left;
+28 -39
View File
@@ -1,6 +1,7 @@
## @xterm/addon-image
Inline image output in xterm.js. Supports SIXEL and iTerm's inline image protocol (IIP).
Inline image output in xterm.js. Supports SIXEL, iTerm's inline image protocol (IIP)
and partially Kitty's terminal graphics prtocol (TGP).
![](fixture/example.png)
@@ -43,9 +44,6 @@ terminal.loadAddon(imageAddon);
### General Notes
- *IMPORTANT:* The worker approach as done in previous releases got removed.
The addon contructor no longer expects a worker path as first argument.
- By default the addon will activate these `windowOptions` reports on the terminal:
- getWinSizePixels (CSI 14 t)
- getCellSizePixels (CSI 16 t)
@@ -73,7 +71,7 @@ terminal.loadAddon(imageAddon);
- **Cursor Positioning**
If scrolling is set, the cursor will be placed at the first image column of the last image row (VT340 mode).
Other cursor positioning modes as used by xterm or mintty are not supported.
Other cursor positioning modes as used by xterm or mintty are not supported for sixel.
- **SIXEL Palette Handling**
By default the addon limits the palette size to 256 registers (as demanded by the DEC specification).
@@ -92,7 +90,7 @@ terminal.loadAddon(imageAddon);
therefore palette animations cannot be used.
- **SIXEL Raster Attributes Handling**
If raster attributes were found in the SIXEL data (level 2), the image will always be truncated to the given height/width extend. We deviate here from the specification on purpose, as it allows several processing optimizations. For level 1 SIXEL data without any raster attributes the image can freely grow in width and height up to the last data byte, which has a much higher processing penalty. In general encoding libraries should not create level 1 data anymore and should not produce pixel information beyond the announced height/width extend. Both is discouraged by the >30 years old specification.
If raster attributes were found in the SIXEL data (level 2), the image will always be truncated to the given height/width extent. We deviate here from the specification on purpose, as it allows several processing optimizations. For level 1 SIXEL data without any raster attributes the image can freely grow in width and height up to the last data byte, which has a much higher processing penalty. In general encoding libraries should not create level 1 data anymore and should not produce pixel information beyond the announced height/width extent. Both is discouraged by the >30 years old specification.
Currently the SIXEL implementation of the addon does not take custom pixel sizes into account, a SIXEL pixel will map 1:1 to a screen pixel.
@@ -100,17 +98,24 @@ terminal.loadAddon(imageAddon);
Set by default, change it with `{iipSupport: true}`.
The IIP implementation has the following features / restrictions (sequence will silently fail for unmet conditions):
- Supported formats: PNG, JPEG and GIF
- Supported formats: PNG, JPEG, GIF and QOI
- No animation support.
- Image type hinting is not supported (always deducted from data header).
- File download is not supported.
- Filename gets parsed but not used.
- Strict base64 handling as of RFC4648 §4 (standard alphabet, optional padding, no separator bytes allowed).
- Payload size may not exceed CEIL(sizeParameter * 4 / 3).
- Image scaling beyond terminal viewport size is allowed (e.g. `width=200%`).
- Image pixel size is restricted by `pixelLimit` (pre- and post resizing).
- Size parameter is restricted by `iipSizeLimit`.
- Cursor positioning behaves the same as for sixel (see above).
- Playload size is restricted by `iipSizeLimit`.
- size parameter is not mandatory anymore.
- Cursor gets positioned at the next cell of the last image line.
- ReportCellSize sequence is supported.
- Hi-res display support is currently limited (image gets blurred).
- **Kitty Graphics Support (TGP)**
Set by default, change it with `{kittySupport: true}`.
Note that the kitty graphics support is still WIP.
### Storage and Drawing Settings
@@ -127,6 +132,7 @@ The addon exposes two properties to interact with the storage limits at runtime:
By default the addon will show a placeholder pattern for evicted images that are still part
of the terminal (e.g. in the scrollback). The pattern can be deactivated by toggling `showPlaceholder`.
### Image Data Retrieval
The addon provides the following API endpoints to retrieve raw image data as canvas:
@@ -140,11 +146,12 @@ The addon provides the following API endpoints to retrieve raw image data as can
The buffer position is the 0-based absolute index (including scrollback at top).
Note that the canvas gets created and data copied over for every call, thus it is not suitable for performance critical actions.
### Memory Usage
The addon does most image processing in Javascript and therefore can occupy a rather big amount of memory. To get an idea where the memory gets eaten, lets look at the data flow and processing steps:
- Incomming image data chunk at `term.write` (terminal)
`term.write` might stock up incoming chunks. To circumvent this, you will need proper flow control (see xterm.js docs). Note that with image output it is more likely to run into this issue, as it can create lots of MBs in very short time.
The addon does most image processing in JavaScript and therefore can occupy a rather big amount of memory. To get an idea where the memory gets eaten, let's look at the data flow and processing steps:
- Incoming image data chunk at `term.write` (terminal)
`term.write` might stack up incoming chunks. To circumvent this, you will need proper flow control (see xterm.js docs). Note that with image output it is more likely to run into this issue, as it can create lots of MBs in very short time.
- Sequence Parser (terminal)
The parser operates on a buffer containing up to 2^17 codepoints (~0.5 MB).
- Sequence Handler - Chunk Decoding (addon)
@@ -170,18 +177,18 @@ const totalActive = storageBytes + decodingBytes;
```
Note that browsers have offloading tricks for rarely touched memory segments, esp. `storageBytes` might not directly translate into real memory usage. Usage peaks will happen during active decoding of multiple big images due to the need of 2 full pixel buffers at the same time, which cannot be offloaded. Thus you may want to keep an eye on `pixelLimit` under limited memory conditions.
Further note that the formulas above do not respect the Javascript object's overhead. Compared to the raw buffer needs the book keeping by these objects is rather small (<<5%).
Further note that the formulas above do not respect the JavaScript object's overhead. Compared to the raw buffer needs the bookkeeping by these objects is rather small (<<5%).
_Why should I care about memory usage at all?_
Well you don't have to, and it probably will just work fine with the addon defaults. But for bigger integrations, where much more data is held in the Javascript context (like multiple terminals on one page), it is likely to hit the engine's memory limit sooner or later under decoding and/or storage pressure.
Well you don't have to, and it probably will just work fine with the addon defaults. But for bigger integrations, where much more data is held in the JavaScript context (like multiple terminals on one page), it is likely to hit the engine's memory limit sooner or later under decoding and/or storage pressure.
_How can I adjust the memory usage?_
- `pixelLimit`
A constructor setting, thus you would have to anticipate, whether (multiple) terminals in your page gonna do lots of concurrent decoding. Since this is normally not the case and the memory usage is only temporarily peaking, a rather high value should work even with multiple terminals in one page.
A constructor setting, thus you would have to anticipate, whether (multiple) terminals in your page gonna do lots of concurrent decoding. Since this is normally not the case and the memory usage only peaks temporarily, a rather high value should work even with multiple terminals in one page.
- `storageLimit`
A constructor and a runtime setting. In conjunction with `storageUsage` you can do runtime checks and adjust the limit to your needs. If you have to lower the limit below the current usage, images will be removed in FIFO order and may turn into a placeholder in the terminal's scrollback (if `showPlaceholder` is set). When adjusting keep in mind to leave enough room for memory peaking for decoding.
- `sixelSizeLimit`
A constructor setting. This has only a small impact on peaking memory during decoding. It is meant to avoid processing of overly big or broken SIXEL sequences at an earlier phase, thus may stop the decoder from entering its memory intensive task for potentially invalid data.
A constructor and a runtime setting. In conjunction with `storageUsage` you can do runtime checks and adjust the limit to your needs. If you have to lower the limit below the current usage, images will be removed in FIFO order and may turn into a placeholder in the terminal's scrollback (if `showPlaceholder` is set). When adjusting keep in mind to leave enough room for peak memory use during decoding.
- `sixelSizeLimit | iipSizeLimit | kittySizeLimit`
Constructor settings. This has only a small impact on peak memory during decoding. It is meant to avoid processing of overly big or broken image sequences at an earlier phase, thus may stop the invoked decoders from entering memory intensive tasks for potentially invalid data.
### Terminal Interaction
@@ -211,23 +218,5 @@ _How can I adjust the memory usage?_
### Status
- Sixel support and image handling in xterm.js is considered beta quality.
- IIP support is in alpha stage. Please file a bug for any awkwardities.
### Changelog
- 0.5.0 integrate with xtermjs base repo (at v0.4.3)
- 0.4.3 defer canvas creation
- 0.4.2 fix image canvas resize
- 0.4.1 compat release for xterm.js 5.2.0
- 0.4.0 IIP support
- 0.3.1 compat release for xterm.js 5.1.0
- 0.3.0 important change: worker removed from addon
- 0.2.0 compat release for xterm.js 5.0.0
- 0.1.3 bugfix: avoid striping
- 0.1.2 bugfix: reset clear flag
- 0.1.1 bugfixes:
- clear sticky image tiles on render
- create folder from bootstrap.sh
- fix peer dependency in package.json
- Sixel and IIP support and image handling in xterm.js is considered beta quality.
- Kitty support is in alpha stage. Please file a bug for any awkwardities or missing features.
Binary file not shown.
+73 -19
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@@ -8,7 +8,7 @@ import { IIPImageStorage } from './IIPImageStorage';
import { CELL_SIZE_DEFAULT } from './ImageStorage';
import Base64Decoder from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';
import QoiDecoder from 'xterm-wasm-parts/lib/qoi/QoiDecoder.wasm';
import { HeaderParser, IHeaderFields, HeaderState } from './IIPHeaderParser';
import { HeaderParser, IHeaderFields, HeaderState, SequenceType } from './IIPHeaderParser';
import { imageType, UNSUPPORTED_TYPE } from './IIPMetrics';
// Local const enum mirror - esbuild can't inline const enums from external packages
@@ -23,6 +23,7 @@ const enum DecoderConst {
// default IIP header values
const DEFAULT_HEADER: IHeaderFields = {
type: SequenceType.INVALID,
name: 'Unnamed file',
size: 0,
width: 'auto',
@@ -39,6 +40,8 @@ export class IIPHandler implements IOscHandler, IResetHandler {
private _dec: Base64Decoder;
private _qoiDec: QoiDecoder;
private _metrics = UNSUPPORTED_TYPE;
private _isMultipart = false;
private _abortMulti = false;
constructor(
private readonly _opts: IImageAddonOptions,
@@ -52,11 +55,14 @@ export class IIPHandler implements IOscHandler, IResetHandler {
this._qoiDec = new QoiDecoder(DecoderConst.KEEP_DATA);
}
public reset(): void {}
public reset(): void {
this._hp.reset();
this._dec.release();
this._qoiDec.release();
}
public start(): void {
this._aborted = false;
this._header = DEFAULT_HEADER;
this._metrics = UNSUPPORTED_TYPE;
this._hp.reset();
}
@@ -76,15 +82,27 @@ export class IIPHandler implements IOscHandler, IResetHandler {
return;
}
if (dataPos > 0) {
this._header = Object.assign({}, DEFAULT_HEADER, this._hp.fields);
if (!this._header.inline || !this._header.size || this._header.size > this._opts.iipSizeLimit) {
const seqType = this._hp.fields.type;
if (seqType === SequenceType.FILE) {
if (this._isMultipart) {
this._isMultipart = false;
this._abortMulti = false;
this._dec.release();
}
this._header = Object.assign({}, DEFAULT_HEADER, this._hp.fields);
if (!this._header.inline) {
this._aborted = true;
return;
}
this._dec.init();
} else if (this._abortMulti) {
this._aborted = true;
return;
}
this._dec.init();
if ((this._dec.put(data.subarray(dataPos, end)) as number) !== DecoderConst.OK) {
this._dec.release();
this._aborted = true;
if (this._isMultipart) this._abortMulti = true;
}
}
}
@@ -93,22 +111,58 @@ export class IIPHandler implements IOscHandler, IResetHandler {
public end(success: boolean): boolean | Promise<boolean> {
if (this._aborted) return true;
if (this._hp.state !== HeaderState.END) {
if (this._hp.end()) return true;
}
const seqType = this._hp.fields.type;
if (seqType === SequenceType.FILEPART) return true;
if (seqType === SequenceType.REPORTCELLSIZE) {
// OSC 1337 ; ReportCellSize=[height];[width];[scale] ST
let width = CELL_SIZE_DEFAULT.width;
let height = CELL_SIZE_DEFAULT.height;
if (this._renderer.dimensions) {
width = this._renderer.dimensions.css.canvas.width / this._coreTerminal.cols;
height = this._renderer.dimensions.css.canvas.height / this._coreTerminal.rows;
}
const scale = this._coreTerminal._core._coreBrowserService?.dpr ?? 1;
const report = `\x1b]1337;ReportCellSize=${height.toFixed(3)};${width.toFixed(3)};${scale.toFixed(3)}\x1b\\`;
this._coreTerminal.input(report, false);
return true;
}
if (seqType === SequenceType.MULTIPARTFILE) {
this._header = Object.assign({}, DEFAULT_HEADER, this._hp.fields);
this._isMultipart = true;
this._abortMulti = false;
this._dec.release();
this._dec.init();
return true;
}
if (seqType === SequenceType.FILEEND) {
if (!this._isMultipart) return true;
this._isMultipart = false;
if (this._abortMulti || this._header.type !== SequenceType.MULTIPARTFILE) return true;
}
// fallthrough for SequenceType.FILE & SequenceType.FILEEND
let w = 0;
let h = 0;
// early exit condition chain
let cond: number | boolean = true;
let cond: number | boolean;
if (cond = success) {
if (cond = !this._dec.end()) {
if (cond = this._dec.data8.length === this._header.size) {
this._metrics = imageType(this._dec.data8);
if (cond = this._metrics.mime !== 'unsupported') {
w = this._metrics.width;
h = this._metrics.height;
if (cond = w && h && w * h < this._opts.pixelLimit) {
[w, h] = this._resize(w, h).map(Math.floor);
cond = w && h && w * h < this._opts.pixelLimit;
}
this._metrics = imageType(this._dec.data8);
if (cond = this._metrics.mime !== 'unsupported') {
w = this._metrics.width;
h = this._metrics.height;
if (cond = w && h && w * h < this._opts.pixelLimit) {
[w, h] = this._resize(w, h).map(Math.floor);
cond = w && h && w * h < this._opts.pixelLimit;
}
}
}
@@ -168,8 +222,8 @@ export class IIPHandler implements IOscHandler, IResetHandler {
private _dim(s: string, total: number, cdim: number): number {
if (s === 'auto') return 0;
if (s.endsWith('%')) return parseInt(s.slice(0, -1)) * total / 100;
if (s.endsWith('px')) return parseInt(s.slice(0, -2));
return parseInt(s) * cdim;
if (s.endsWith('%')) return parseInt(s.slice(0, -1), 10) * total / 100;
if (s.endsWith('px')) return parseInt(s.slice(0, -2), 10);
return parseInt(s, 10) * cdim;
}
}
+129 -7
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@@ -4,19 +4,20 @@
*/
import { assert } from 'chai';
import { HeaderParser, HeaderState, IHeaderFields } from './IIPHeaderParser';
import { HeaderParser, HeaderState, IHeaderFields, SequenceType } from './IIPHeaderParser';
const CASES: [string, IHeaderFields][] = [
['File=size=123456;name=dGVzdA==:', {name: 'test', size: 123456}],
['File=size=123456;name=dGVzdA:', {name: 'test', size: 123456}],
['File=size=123456;name=dGVzdA==:', {type: SequenceType.FILE, name: 'test', size: 123456}],
['File=size=123456;name=dGVzdA:', {type: SequenceType.FILE, name: 'test', size: 123456}],
// utf-8 encoding in name
['File=size=123456;name=w7xtbMOkdXTDnw==:', {name: 'ümläutß', size: 123456}],
['File=size=123456;name=w7xtbMOkdXTDnw:', {name: 'ümläutß', size: 123456}],
['File=size=123456;name=w7xtbMOkdXTDnw==:', {type: SequenceType.FILE, name: 'ümläutß', size: 123456}],
['File=size=123456;name=w7xtbMOkdXTDnw:', {type: SequenceType.FILE, name: 'ümläutß', size: 123456}],
// full header spec
[
'File=inline=1;width=10px;height=20%;preserveAspectRatio=1;size=123456;name=w7xtbMOkdXTDnw:',
{
type: SequenceType.FILE,
inline: 1,
width: '10px',
height: '20%',
@@ -28,6 +29,7 @@ const CASES: [string, IHeaderFields][] = [
[
'File=inline=1;width=auto;height=20;preserveAspectRatio=1;size=123456;name=w7xtbMOkdXTDnw:',
{
type: SequenceType.FILE,
inline: 1,
width: 'auto',
height: '20',
@@ -101,7 +103,7 @@ describe('IIPHeaderParser', () => {
let res = hp.parse(inp, 0, inp.length);
assert.strictEqual(res, inp.length);
assert.strictEqual(hp.state, HeaderState.END);
assert.deepEqual(hp.fields, {name: 'test', size: 0});
assert.deepEqual(hp.fields, {type: SequenceType.FILE, name: 'test', size: 0});
hp.reset();
inp = fromBs(CASES[0][0]);
res = hp.parse(inp, 0, inp.length);
@@ -115,7 +117,7 @@ describe('IIPHeaderParser', () => {
let res = hp.parse(inp, 0, inp.length);
assert.strictEqual(res, inp.length);
assert.strictEqual(hp.state, HeaderState.END);
assert.deepEqual(hp.fields, {name: '', size: 123456});
assert.deepEqual(hp.fields, {type: SequenceType.FILE, name: '', size: 123456});
hp.reset();
inp = fromBs(CASES[0][0]);
res = hp.parse(inp, 0, inp.length);
@@ -135,4 +137,124 @@ describe('IIPHeaderParser', () => {
assert.strictEqual(hp.state, HeaderState.END);
assert.deepEqual(hp.fields, CASES[0][1]);
});
it('FilePart sequence', () => {
const hp = new HeaderParser();
const inp = fromBs('FilePart=w7xtbMOkdXTDnw');
const res = hp.parse(inp, 0, inp.length);
assert.strictEqual(res, 9);
assert.strictEqual(hp.state, HeaderState.END);
assert.deepEqual(hp.fields.type, SequenceType.FILEPART);
});
it('FilePart sequence - bytewise', () => {
const hp = new HeaderParser();
const inp = fromBs('FilePart=w7xtbMOkdXTDnw');
let res = -2;
let pos = 0;
while (res === -2 && pos < inp.length) {
res = hp.parse(new Uint32Array([inp[pos++]]), 0, 1);
}
assert.strictEqual(res, 1);
assert.strictEqual(hp.state, HeaderState.END);
assert.deepEqual(hp.fields.type, SequenceType.FILEPART);
});
it('MultipartFile sequence', () => {
const hp = new HeaderParser();
const inp = fromBs('MultipartFile=inline=1;width=10px;height=20%;preserveAspectRatio=1;size=123456;name=w7xtbMOkdXTDnw');
let res = hp.parse(inp, 0, inp.length);
assert.strictEqual(res, -2);
assert.strictEqual(hp.state, HeaderState.VALUE);
res = hp.end();
assert.strictEqual(res, 0);
assert.strictEqual(hp.state, HeaderState.END);
assert.deepEqual(
hp.fields,
{
type: SequenceType.MULTIPARTFILE,
inline: 1,
width: '10px',
height: '20%',
preserveAspectRatio: 1,
size: 123456,
name: 'ümläutß'
}
);
});
it('MultipartFile sequence - bytewise', () => {
const hp = new HeaderParser();
const inp = fromBs('MultipartFile=inline=1;width=10px;height=20%;preserveAspectRatio=1;size=123456;name=w7xtbMOkdXTDnw');
let res = -2;
let pos = 0;
while (res === -2 && pos < inp.length) {
res = hp.parse(new Uint32Array([inp[pos++]]), 0, 1);
}
assert.strictEqual(res, -2);
assert.strictEqual(hp.state, HeaderState.VALUE);
res = hp.end();
assert.strictEqual(res, 0);
assert.strictEqual(hp.state, HeaderState.END);
assert.deepEqual(
hp.fields,
{
type: SequenceType.MULTIPARTFILE,
inline: 1,
width: '10px',
height: '20%',
preserveAspectRatio: 1,
size: 123456,
name: 'ümläutß'
}
);
});
it('FileEnd sequence', () => {
const hp = new HeaderParser();
const inp = fromBs('FileEnd');
let res = hp.parse(inp, 0, inp.length);
assert.strictEqual(res, -2);
assert.strictEqual(hp.state, HeaderState.START);
res = hp.end();
assert.strictEqual(res, 0);
assert.strictEqual(hp.state, HeaderState.END);
assert.deepEqual(hp.fields.type, SequenceType.FILEEND);
});
it('FileEnd sequence - bytewise', () => {
const hp = new HeaderParser();
const inp = fromBs('FileEnd');
let res = -2;
let pos = 0;
while (res === -2 && pos < inp.length) {
res = hp.parse(new Uint32Array([inp[pos++]]), 0, 1);
}
assert.strictEqual(res, -2);
assert.strictEqual(hp.state, HeaderState.START);
res = hp.end();
assert.strictEqual(res, 0);
assert.strictEqual(hp.state, HeaderState.END);
assert.deepEqual(hp.fields.type, SequenceType.FILEEND);
});
it('ReportCellSize sequence', () => {
const hp = new HeaderParser();
const inp = fromBs('ReportCellSize');
let res = hp.parse(inp, 0, inp.length);
assert.strictEqual(res, -2);
assert.strictEqual(hp.state, HeaderState.START);
res = hp.end();
assert.strictEqual(res, 0);
assert.strictEqual(hp.state, HeaderState.END);
assert.deepEqual(hp.fields, { type: SequenceType.REPORTCELLSIZE });
});
it('ReportCellSize sequence - bytewise', () => {
const hp = new HeaderParser();
const inp = fromBs('ReportCellSize');
let res = -2;
let pos = 0;
while (res === -2 && pos < inp.length) {
res = hp.parse(new Uint32Array([inp[pos++]]), 0, 1);
}
assert.strictEqual(res, -2);
assert.strictEqual(hp.state, HeaderState.START);
res = hp.end();
assert.strictEqual(res, 0);
assert.strictEqual(hp.state, HeaderState.END);
assert.deepEqual(hp.fields, { type: SequenceType.REPORTCELLSIZE });
});
});
+86 -11
View File
@@ -6,9 +6,27 @@
// eslint-disable-next-line
declare const Buffer: any;
export const enum HeaderState {
START = 0,
ABORT = 1,
KEY = 2,
VALUE = 3,
END = 4
}
export const enum SequenceType {
INVALID = 0,
FILE = 1,
MULTIPARTFILE = 2,
FILEPART = 3,
FILEEND = 4,
REPORTCELLSIZE = 5
}
export interface IHeaderFields {
[key: string]: number | string | Uint32Array | null | undefined;
// sequence type
type: SequenceType;
// base-64 encoded filename. Defaults to "Unnamed file".
name: string;
// File size in bytes. The file transfer will be canceled if this size is exceeded.
@@ -29,14 +47,6 @@ export interface IHeaderFields {
inline?: number;
}
export const enum HeaderState {
START = 0,
ABORT = 1,
KEY = 2,
VALUE = 3,
END = 4
}
// field value decoders
// ASCII bytes to string
@@ -92,7 +102,19 @@ const DECODERS: {[key: string]: (v: Uint32Array) => number | string} = {
};
// sequence type markers
// File
const FILE_MARKER = [70, 105, 108, 101];
// MultipartFile
const MULTIPARTFILE_MARKER = [77, 117, 108, 116, 105, 112, 97, 114, 116, 70, 105, 108, 101];
// FilePart
const FILEPART_MARKER = [70, 105, 108, 101, 80, 97, 114, 116];
// FileEnd
const FILEEND_MARKER = [70, 105, 108, 101, 69, 110, 100];
// ReportCellSize
const REPORTCELLSIZE_MARKER = [82, 101, 112, 111, 114, 116, 67, 101, 108, 108, 83, 105, 122, 101];
// max allowed chars for sequence header
const MAX_FIELDCHARS = 1024;
@@ -111,12 +133,43 @@ export class HeaderParser {
this._key = '';
}
public end(): number {
if (this.state === HeaderState.START) {
if (this._position === FILEEND_MARKER.length) {
for (let k = 0; k < FILEEND_MARKER.length; ++k) {
if (this._buffer[k] !== FILEEND_MARKER[k]) return this._a();
}
this.fields['type'] = SequenceType.FILEEND;
this.state = HeaderState.END;
return 0;
}
if (this._position === REPORTCELLSIZE_MARKER.length) {
for (let k = 0; k < REPORTCELLSIZE_MARKER.length; ++k) {
if (this._buffer[k] !== REPORTCELLSIZE_MARKER[k]) return this._a();
}
this.fields['type'] = SequenceType.REPORTCELLSIZE;
this.state = HeaderState.END;
return 0;
}
return this._a();
}
if (this.state === HeaderState.END) return 0;
if (this.state === HeaderState.VALUE
&& this.fields.type === SequenceType.MULTIPARTFILE
) {
if (!this._storeValue(this._position)) return this._a();
this.state = HeaderState.END;
return 0;
}
return this._a();
}
public parse(data: Uint32Array, start: number, end: number): number {
let state = this.state;
let pos = this._position;
const buffer = this._buffer;
if (state === HeaderState.ABORT || state === HeaderState.END) return -1;
if (state === HeaderState.START && pos > 6) return -1;
if (state === HeaderState.START && pos > 14) return -1;
for (let i = start; i < end; ++i) {
const c = data[i];
switch (c) {
@@ -127,8 +180,29 @@ export class HeaderParser {
break;
case 61: // =
if (state === HeaderState.START) {
for (let k = 0; k < FILE_MARKER.length; ++k) {
if (buffer[k] !== FILE_MARKER[k]) return this._a();
if (buffer[0] === 70) {
// 'File' or 'FilePart'
let k = 0;
for (; k < FILE_MARKER.length; ++k) {
if (buffer[k] !== FILE_MARKER[k]) return this._a();
}
this.fields['type'] = SequenceType.FILE;
if (pos === FILEPART_MARKER.length) {
for (; k < FILEPART_MARKER.length; ++k) {
if (buffer[k] !== FILEPART_MARKER[k]) return this._a();
}
this.fields['type'] = SequenceType.FILEPART;
this.state = HeaderState.END;
return i + 1;
}
} else if (buffer[0] === 77) {
// 'MultipartFile'
for (let k = 0; k < MULTIPARTFILE_MARKER.length; ++k) {
if (buffer[k] !== MULTIPARTFILE_MARKER[k]) return this._a();
}
this.fields['type'] = SequenceType.MULTIPARTFILE;
} else {
return this._a();
}
state = HeaderState.KEY;
pos = 0;
@@ -158,6 +232,7 @@ export class HeaderParser {
}
private _a(): number {
this.fields.type = SequenceType.INVALID;
this.state = HeaderState.ABORT;
return -1;
}
+3 -1
View File
@@ -3,6 +3,7 @@
* @license MIT
*/
import { IAddImageOpts } from './Types';
import { ImageStorage } from './ImageStorage';
/**
@@ -12,6 +13,7 @@ import { ImageStorage } from './ImageStorage';
* - Always uses scrolling mode (cursor advances with image)
*/
export class IIPImageStorage {
private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'iip' };
constructor(
private readonly _storage: ImageStorage
) {}
@@ -21,6 +23,6 @@ export class IIPImageStorage {
* Always uses scrolling mode — cursor advances past the image.
*/
public addImage(img: HTMLCanvasElement | ImageBitmap): void {
this._storage.addImage(img, true);
this._storage.addImage(img, this._addImageOpts);
}
}
+2 -1
View File
@@ -30,7 +30,8 @@ const TEST_IMAGES: [string, IMetrics][] = [
['iphone_hdr_YES.jpg', { mime: 'image/jpeg', width: 3264, height: 2448 }],
['nikon-e950.jpg', { mime: 'image/jpeg', width: 800, height: 600 }],
['agfa-makernotes.jpg', { mime: 'image/jpeg', width: 8, height: 8 }],
['sony-alpha-6000.jpg', { mime: 'image/jpeg', width: 6000, height: 4000 }]
['sony-alpha-6000.jpg', { mime: 'image/jpeg', width: 6000, height: 4000 }],
['dice.qoi', { mime: 'image/qoi', width: 800, height: 600 }],
];
+1 -6
View File
@@ -137,11 +137,6 @@ export class ImageAddon implements ITerminalAddon, IImageApi {
// enable size reports
if (this._opts.enableSizeReports) {
// const windowOptions = terminal.getOption('windowOptions');
// windowOptions.getWinSizePixels = true;
// windowOptions.getCellSizePixels = true;
// windowOptions.getWinSizeChars = true;
// terminal.setOption('windowOptions', windowOptions);
const windowOps = terminal.options.windowOptions ?? {};
windowOps.getWinSizePixels = true;
windowOps.getCellSizePixels = true;
@@ -260,7 +255,7 @@ export class ImageAddon implements ITerminalAddon, IImageApi {
}
private _report(s: string): void {
this._terminal?._core.coreService.triggerDataEvent(s);
this._terminal?._core.input(s, false);
}
private _decset(params: (number | number[])[]): boolean {
+1 -1
View File
@@ -146,7 +146,7 @@ export class ImageRenderer extends Disposable implements IDisposable {
public clearLines(start: number, end: number, layer?: ImageLayer): void {
const y = start * (this.dimensions?.css.cell.height || 0);
const w = this.dimensions?.css.canvas.width || 0;
const h = (++end - start) * (this.dimensions?.css.cell.height || 0);
const h = (end + 1 - start) * (this.dimensions?.css.cell.height || 0);
if (!layer || layer === 'top') {
this._layers.get('top')?.clearRect(0, y, w, h);
}
+26 -20
View File
@@ -5,12 +5,13 @@
import { IDisposable } from '@xterm/xterm';
import { ImageRenderer } from './ImageRenderer';
import type { ITerminalExt, IImageAddonOptions, IImageSpec, ICellSize, ImageLayer } from './Types';
import type { IBufferLine } from 'common/Types';
import type {
ITerminalExt, IImageAddonOptions, IImageSpec, ICellSize, IAddImageOpts
} from './Types';
import type { IBufferLine } from 'common/buffer/Types';
import { CellData } from 'common/buffer/CellData';
// fallback default cell size
export const CELL_SIZE_DEFAULT: ICellSize = {
width: 7,
@@ -158,13 +159,15 @@ export class ImageStorage implements IDisposable {
/**
* Method to add an image to the storage.
* @param img - The image to add (canvas or bitmap).
* @param scrolling - When true, cursor advances with the image (lineFeed per row).
* When false, image is placed at (0,0) and cursor is restored (DECSET 80 / sixel origin mode).
* @param layer - Which canvas layer to render on ('top' or 'bottom').
* @param zIndex - Z-index for image layering within the same layer.
* @param opts - Options for addImage:
* - scrolling: When true, cursor advances with the image.
* When false, image is placed at ORIGIN and cursor does not move.
* - layer: Which canvas layer to render on ('top' or 'bottom').
* - zIndex: Z-index for image layering within the same layer.
* - cursorPos: 'vt340' for bottom-left, 'iip' for bottom.right.
* @returns The internal image ID assigned to the stored image.
*/
public addImage(img: HTMLCanvasElement | ImageBitmap, scrolling: boolean, layer: ImageLayer = 'top', zIndex: number = 0): number {
public addImage(img: HTMLCanvasElement | ImageBitmap, opts: IAddImageOpts): number {
// never allow storage to exceed memory limit
this._evictOldest(img.width * img.height);
@@ -186,7 +189,7 @@ export class ImageStorage implements IDisposable {
let offset = originX;
let tileCount = 0;
if (!scrolling) {
if (!opts.scrolling) {
buffer.x = 0;
buffer.y = 0;
offset = 0;
@@ -200,7 +203,7 @@ export class ImageStorage implements IDisposable {
this._writeToCell(line, offset + col, imageId, row * cols + col);
tileCount++;
}
if (scrolling) {
if (opts.scrolling) {
if (row < rows - 1) this._terminal._core._inputHandler.lineFeed();
} else {
if (++buffer.y >= termRows) break;
@@ -210,8 +213,12 @@ export class ImageStorage implements IDisposable {
this._terminal._core._inputHandler._dirtyRowTracker.markDirty(buffer.y);
// cursor positioning modes
if (scrolling) {
buffer.x = offset;
if (opts.scrolling) {
if (opts.cursorPos === 'iip') {
buffer.x = Math.min(offset + cols, termCols);
} else {
buffer.x = offset;
}
} else {
buffer.x = originX;
buffer.y = originY;
@@ -254,8 +261,8 @@ export class ImageStorage implements IDisposable {
marker: endMarker || undefined,
tileCount,
bufferType: this._terminal.buffer.active.type,
layer,
zIndex
layer: opts.layer,
zIndex: opts.zIndex
};
// finally add the image
@@ -349,8 +356,8 @@ export class ImageStorage implements IDisposable {
const workCell = this._workCell;
for (let col = 0; col < cols; ++col) {
line.loadCell(col, workCell);
let e = workCell.hasExtendedAttrs() && workCell.extended.payload;
if (! (e instanceof ImageTileInfo)) {
const e = workCell.hasExtendedAttrs() && workCell.extended.payload;
if (!(e instanceof ImageTileInfo)) {
continue;
}
const imageId = e.imageId;
@@ -372,10 +379,9 @@ export class ImageStorage implements IDisposable {
while (++col < cols) {
line.loadCell(col, workCell);
const nextE = workCell.hasExtendedAttrs() && workCell.extended.payload;
if (! (nextE instanceof ImageTileInfo) || !nextE || nextE.imageId !== imageId || nextE.tileId !== startTile + count) {
if (!(nextE instanceof ImageTileInfo) || !nextE || nextE.imageId !== imageId || nextE.tileId !== startTile + count) {
break;
}
e = nextE;
count++;
}
col--;
@@ -425,11 +431,11 @@ export class ImageStorage implements IDisposable {
const oldCol = this._viewportMetrics.cols - 1;
const workCell = this._workCell;
for (let row = 0; row < rows; ++row) {
const line = buffer.lines.get(row) !;
const line = buffer.lines.get(row)!;
line.loadCell(oldCol, workCell);
if (workCell.hasExtendedAttrs()) {
const e = workCell.extended.payload;
if (! (e instanceof ImageTileInfo)) {
if (!(e instanceof ImageTileInfo)) {
continue;
}
const imageId = e.imageId;
+1 -1
View File
@@ -91,7 +91,7 @@ export class SixelHandler implements IDcsHandler, IResetHandler {
const height = this._dec.height;
// partial fix for https://github.com/jerch/xterm-addon-image/issues/37
if (!width || ! height) {
if (!width || !height) {
if (height) {
this._storage.advanceCursor(height);
}
+4 -2
View File
@@ -4,7 +4,7 @@
*/
import { ImageStorage, CELL_SIZE_DEFAULT } from './ImageStorage';
import { IImageAddonOptions, ITerminalExt } from './Types';
import { IImageAddonOptions, ITerminalExt, IAddImageOpts } from './Types';
import { ImageRenderer } from './ImageRenderer';
/**
@@ -15,6 +15,7 @@ import { ImageRenderer } from './ImageRenderer';
* - advanceCursor for empty sixels carrying only height
*/
export class SixelImageStorage {
private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'vt340' };
constructor(
private readonly _storage: ImageStorage,
private readonly _opts: IImageAddonOptions,
@@ -27,7 +28,8 @@ export class SixelImageStorage {
* Cursor behavior depends on the sixelScrolling option (DECSET 80).
*/
public addImage(img: HTMLCanvasElement | ImageBitmap): void {
this._storage.addImage(img, this._opts.sixelScrolling);
this._addImageOpts.scrolling = this._opts.sixelScrolling;
this._storage.addImage(img, this._addImageOpts);
}
/**
+8
View File
@@ -87,6 +87,14 @@ export interface ICellSize {
}
export type ImageLayer = 'top' | 'bottom';
export type CursorPos = 'vt340' | 'iip';
export interface IAddImageOpts {
scrolling: boolean;
layer: ImageLayer;
zIndex: number;
cursorPos: CursorPos;
}
export interface IImageSpec {
orig: HTMLCanvasElement | ImageBitmap | undefined;
@@ -168,7 +168,7 @@ export function parseKittyCommand(data: string): IKittyCommand {
cmd.deleteSelector = value;
continue;
}
const numValue = parseInt(value);
const numValue = parseInt(value, 10);
switch (key) {
case KittyKey.FORMAT: cmd.format = numValue; break;
case KittyKey.ID: cmd.id = numValue; break;
@@ -5,7 +5,7 @@
import { IDisposable } from '@xterm/xterm';
import { ImageStorage } from '../ImageStorage';
import { ImageLayer } from '../Types';
import { ImageLayer, IAddImageOpts } from '../Types';
import { IKittyImageData } from './KittyGraphicsTypes';
// Kitty-specific image storage controller.
@@ -42,6 +42,7 @@ export class KittyImageStorage implements IDisposable {
this._images.delete(kittyId);
}
};
private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'iip' };
constructor(
private readonly _storage: ImageStorage
@@ -98,7 +99,10 @@ export class KittyImageStorage implements IDisposable {
if (oldStorageId !== undefined) {
this._storageIdToKittyId.delete(oldStorageId);
}
const storageId = this._storage.addImage(image, scrolling, layer, zIndex);
this._addImageOpts.scrolling = scrolling;
this._addImageOpts.layer = layer;
this._addImageOpts.zIndex = zIndex;
const storageId = this._storage.addImage(image, this._addImageOpts);
this._kittyIdToStorageId.set(kittyId, storageId);
this._storageIdToKittyId.set(storageId, kittyId);
}
@@ -290,6 +290,67 @@ test.describe('ImageAddon', () => {
});
});
test.describe('IIP support', () => {
test('size params is optional/informative', async () => {
// too small size param
await ctx.proxy.write(`\x1b]1337;File=inline=1;size=5:${PALETTE_PNG_BASE64}\x07`);
deepStrictEqual(await getOrigSize(1), [640, 80]);
// no size aparm at all
await ctx.proxy.write(`\x1b[10H\x1b]1337;File=inline=1:${PALETTE_QOI_BASE64}\x07`);
deepStrictEqual(await getOrigSize(2), [640, 80]);
});
test.skip('FilePart support - bytewise', async () => {
// opener
await ctx.proxy.write(`\x1b]1337;MultipartFile=inline=1\x07`);
// byte-wise
for (let i = 0; i < PALETTE_PNG_BASE64.length; ++i) {
await ctx.proxy.write(`\x1b]1337;FilePart=${PALETTE_PNG_BASE64[i]}\x07`);
}
// finalizer
await ctx.proxy.write(`\x1b]1337;FileEnd\x07`);
deepStrictEqual(await getOrigSize(1), [640, 80]);
});
test('FilePart support - chunks', async () => {
// opener
await ctx.proxy.write(`\x1b]1337;MultipartFile=inline=1\x07`);
// chunks
for (let i = 0; i < PALETTE_PNG_BASE64.length; i += 256) {
await ctx.proxy.write(`\x1b]1337;FilePart=${PALETTE_PNG_BASE64.slice(i, i + 256)}\x07`);
}
// finalizer
await ctx.proxy.write(`\x1b]1337;FileEnd\x07`);
deepStrictEqual(await getOrigSize(1), [640, 80]);
});
test('FilePart support - edgecases', async () => {
// multiple opener do not harm
for (let i = 0; i < 10; ++i) {
await ctx.proxy.write(`\x1b]1337;MultipartFile=inline=1\x07`);
}
// multiple finalizer do not harm
for (let i = 0; i < 5; ++i) {
await ctx.proxy.write(`\x1b]1337;FileEnd\x07`);
}
// chunks w'o opener are ignored
for (let i = 0; i < PALETTE_PNG_BASE64.length; i += 256) {
await ctx.proxy.write(`\x1b]1337;FilePart=${PALETTE_PNG_BASE64.slice(i, i + 256)}\x07`);
}
await ctx.proxy.write(`\x1b]1337;FileEnd\x07`);
pollFor(ctx.page, 'window.imageAddon._storage._images.size', 0);
});
test('FilePart support - other IIP sequence cancels chunked image', async () => {
// opener
await ctx.proxy.write(`\x1b]1337;MultipartFile=inline=1\x07`);
// chunks
for (let i = 0; i < PALETTE_PNG_BASE64.length; i += 256) {
await ctx.proxy.write(`\x1b]1337;FilePart=${PALETTE_PNG_BASE64.slice(i, i + 256)}\x07`);
}
// finalizer skipped
// write spinfox.png
await ctx.proxy.write(TESTDATA_IIP[1][0]);
deepStrictEqual(await getOrigSize(1), TESTDATA_IIP[1][1]);
});
});
test.describe('IIP support - testimages', () => {
test('palette.png', async () => {
await ctx.proxy.write(TESTDATA_IIP[0][0]);
+6 -12
View File
@@ -539,7 +539,6 @@ test.describe('Kitty Graphics Protocol', () => {
test.describe('Query support (a=q)', () => {
test('responds with OK for capability query without payload', async () => {
let response = '';
await ctx.page.evaluate(() => {
(window as any).kittyResponse = '';
(window as any).term.onData((data: string) => { (window as any).kittyResponse = data; });
@@ -548,12 +547,11 @@ test.describe('Kitty Graphics Protocol', () => {
await ctx.proxy.write('\x1b_Gi=31,a=q;\x1b\\');
await timeout(100);
response = await ctx.page.evaluate('window.kittyResponse');
const response = await ctx.page.evaluate('window.kittyResponse');
strictEqual(response, '\x1b_Gi=31;OK\x1b\\');
});
test('responds with OK for valid PNG query', async () => {
let response = '';
await ctx.page.evaluate(() => {
(window as any).kittyResponse = '';
(window as any).term.onData((data: string) => { (window as any).kittyResponse = data; });
@@ -562,7 +560,7 @@ test.describe('Kitty Graphics Protocol', () => {
await ctx.proxy.write(`\x1b_Gi=42,a=q,f=100;${KITTY_BLACK_1X1_BASE64}\x1b\\`);
await timeout(100);
response = await ctx.page.evaluate('window.kittyResponse');
const response = await ctx.page.evaluate('window.kittyResponse');
strictEqual(response, '\x1b_Gi=42;OK\x1b\\');
});
@@ -578,7 +576,6 @@ test.describe('Kitty Graphics Protocol', () => {
});
test('responds with error for invalid base64', async () => {
let response = '';
await ctx.page.evaluate(() => {
(window as any).kittyResponse = '';
(window as any).term.onData((data: string) => { (window as any).kittyResponse = data; });
@@ -587,12 +584,11 @@ test.describe('Kitty Graphics Protocol', () => {
await ctx.proxy.write('\x1b_Gi=60,a=q,f=100;!!!invalid!!!\x1b\\');
await timeout(100);
response = await ctx.page.evaluate('window.kittyResponse');
const response: string = await ctx.page.evaluate('window.kittyResponse');
strictEqual(response.startsWith('\x1b_Gi=60;EINVAL:'), true);
});
test('responds with error for RGB data without dimensions', async () => {
let response = '';
await ctx.page.evaluate(() => {
(window as any).kittyResponse = '';
(window as any).term.onData((data: string) => { (window as any).kittyResponse = data; });
@@ -601,7 +597,7 @@ test.describe('Kitty Graphics Protocol', () => {
await ctx.proxy.write('\x1b_Gi=70,a=q,f=24;AAAA\x1b\\');
await timeout(100);
response = await ctx.page.evaluate('window.kittyResponse');
const response = await ctx.page.evaluate('window.kittyResponse');
strictEqual(response, '\x1b_Gi=70;EINVAL:width and height required for raw pixel data\x1b\\');
});
@@ -642,7 +638,6 @@ test.describe('Kitty Graphics Protocol', () => {
});
test('responds with EINVAL when both i and I keys are specified', async () => {
let response = '';
await ctx.page.evaluate(() => {
(window as any).kittyResponse = '';
(window as any).term.onData((data: string) => { (window as any).kittyResponse = data; });
@@ -652,12 +647,11 @@ test.describe('Kitty Graphics Protocol', () => {
await ctx.proxy.write(`\x1b_Gi=100,I=200,a=q,f=100;${KITTY_BLACK_1X1_BASE64}\x1b\\`);
await timeout(100);
response = await ctx.page.evaluate('window.kittyResponse');
const response = await ctx.page.evaluate('window.kittyResponse');
strictEqual(response, '\x1b_Gi=100;EINVAL:cannot specify both i and I keys\x1b\\');
});
test('responds with EINVAL for i+I conflict even without payload', async () => {
let response = '';
await ctx.page.evaluate(() => {
(window as any).kittyResponse = '';
(window as any).term.onData((data: string) => { (window as any).kittyResponse = data; });
@@ -667,7 +661,7 @@ test.describe('Kitty Graphics Protocol', () => {
await ctx.proxy.write('\x1b_Gi=101,I=201,a=d\x1b\\');
await timeout(100);
response = await ctx.page.evaluate('window.kittyResponse');
const response = await ctx.page.evaluate('window.kittyResponse');
strictEqual(response, '\x1b_Gi=101;EINVAL:cannot specify both i and I keys\x1b\\');
});
});
+5 -9
View File
@@ -20,7 +20,7 @@
"package": "webpack",
"pretest": "npm run build",
"test": "nyc mocha out/**/*.test.js",
"prepublish": "npm run package"
"prepublishOnly": "npm run package"
},
"keywords": [
"font",
@@ -31,15 +31,11 @@
],
"license": "MIT",
"dependencies": {
"lru-cache": "^6.0.0",
"opentype.js": "^0.8.0"
"lru-cache": "^11.3.6",
"opentype.js": "^2.0.0"
},
"devDependencies": {
"@types/lru-cache": "^5.1.0",
"@types/opentype.js": "^0.7.0",
"axios": "^1.15.0",
"font-finder": "^1.1.0",
"mkdirp": "0.5.5",
"yauzl": "^3.2.1"
"@types/opentype.js": "^1.3.9",
"font-finder": "^1.1.0"
}
}
@@ -1,5 +1,5 @@
import * as opentype from 'opentype.js';
import LRUCache = require('lru-cache');
import { LRUCache } from 'lru-cache';
import { IFont, ILigatureData, IFlattenedLookupTree, ILookupTree, IOptions } from './types';
import mergeTrees from './merge';
@@ -23,8 +23,8 @@ class FontImpl implements IFont {
if (options.cacheSize > 0) {
this._cache = new LRUCache({
max: options.cacheSize,
length: ((val: ILigatureData | [number, number][], key: string) => key.length) as any
maxSize: options.cacheSize,
sizeCalculation: ((val: ILigatureData | [number, number][], key: string) => key.length) as any
});
}
@@ -44,7 +44,6 @@ export default function mergeRange(ranges: [number, number][], newRangeStart: nu
// current range
ranges[i - 1][1] = Math.max(newRangeEnd, range[1]);
ranges.splice(i, 1);
inRange = false;
return ranges;
}
// Case 7: New range extends from previous range past the
+1 -1
View File
@@ -21,7 +21,7 @@ const CACHE_SIZE = 100000;
/**
* Enable ligature support for the provided Terminal instance. To function
* properly, this must be called after `open()` is called on the therminal. If
* properly, this must be called after `open()` is called on the terminal. If
* the font currently in use supports ligatures, the terminal will automatically
* start to render them.
* @param term Terminal instance from xterm.js
@@ -9,15 +9,18 @@ import { ITestContext, createTestContext, openTerminal } from '../../../test/pla
let ctx: ITestContext;
test.beforeAll(async ({ browser }) => {
ctx = await createTestContext(browser);
ctx.page.setViewportSize({ width: 1024, height: 768 });
await openTerminal(ctx);
});
test.afterAll(async () => await ctx.page.close());
test.describe('ProgressAddon', () => {
test.describe.configure({ mode: 'serial' });
test.beforeAll(async ({ browser }) => {
ctx = await createTestContext(browser);
await openTerminal(ctx);
});
test.afterAll(async () => {
await ctx?.page?.close();
});
test.beforeEach(async function(): Promise<any> {
await ctx.page.evaluate(`
window.progressStack = [];
@@ -0,0 +1,81 @@
/**
* Copyright (c) 2026 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { assert } from 'chai';
import { DecorationManager } from './DecorationManager';
import { SearchEngine } from './SearchEngine';
import { SearchLineCache } from './SearchLineCache';
import { Terminal } from 'browser/public/Terminal';
import type { ISearchDecorationOptions } from '@xterm/addon-search';
import type { IDecorationOptions } from '@xterm/xterm';
import { DisposableStore } from 'common/Lifecycle';
function writeP(terminal: Terminal, data: string): Promise<void> {
return new Promise(r => terminal.write(data, r));
}
describe('DecorationManager', () => {
let store: DisposableStore;
let terminal: Terminal;
let decorationManager: DecorationManager;
beforeEach(() => {
store = new DisposableStore();
terminal = store.add(new Terminal({ cols: 10, rows: 5 }));
decorationManager = store.add(new DecorationManager(terminal));
});
it('should split highlight decorations for a wrapped match', async () => {
await writeP(terminal, '0123456789abcde');
const searchEngine = new SearchEngine(terminal, store.add(new SearchLineCache(terminal)));
const match = searchEngine.find('9abc', 0, 0);
assert.ok(match);
const decorationOptions: IDecorationOptions[] = [];
const registerDecoration = terminal.registerDecoration.bind(terminal);
terminal.registerDecoration = (options: IDecorationOptions) => {
decorationOptions.push(options);
return registerDecoration(options);
};
const options: ISearchDecorationOptions = {
matchOverviewRuler: '#ff0000',
activeMatchColorOverviewRuler: '#00ff00'
};
decorationManager.createHighlightDecorations([match], options);
assert.strictEqual(decorationOptions.length, 2);
assert.strictEqual(decorationOptions[0].x, 9);
assert.strictEqual(decorationOptions[0].width, 1);
assert.strictEqual(decorationOptions[1].x, 0);
assert.strictEqual(decorationOptions[1].width, 3);
const withOverviewRuler = decorationOptions.filter(o => o.overviewRulerOptions !== undefined);
assert.strictEqual(withOverviewRuler.length, 2);
});
it('should only add one overview ruler marker per buffer line', async () => {
await writeP(terminal, 'abcdefghij');
const decorationOptions: IDecorationOptions[] = [];
const registerDecoration = terminal.registerDecoration.bind(terminal);
terminal.registerDecoration = (options: IDecorationOptions) => {
decorationOptions.push(options);
return registerDecoration(options);
};
const options: ISearchDecorationOptions = {
matchOverviewRuler: '#ff0000',
activeMatchColorOverviewRuler: '#00ff00'
};
decorationManager.createHighlightDecorations([
{ term: 'a', col: 0, row: 0, size: 1 },
{ term: 'f', col: 5, row: 0, size: 1 }
], options);
const withOverviewRuler = decorationOptions.filter(o => o.overviewRulerOptions !== undefined);
assert.strictEqual(withOverviewRuler.length, 1);
assert.strictEqual(withOverviewRuler[0].x, 0);
});
});
+8 -6
View File
@@ -142,12 +142,14 @@ export class SearchAddon extends Disposable implements ITerminalAddon, ISearchAp
}
prevResult = result;
results.push(prevResult);
result = this._engine.find(
term,
prevResult.col + prevResult.term.length >= this._terminal.cols ? prevResult.row + 1 : prevResult.row,
prevResult.col + prevResult.term.length >= this._terminal.cols ? 0 : prevResult.col + 1,
searchOptions
);
const cols = this._terminal.cols;
let nextCol = prevResult.col + prevResult.size;
let nextRow = prevResult.row;
if (nextCol >= cols) {
nextRow += Math.floor(nextCol / cols);
nextCol = nextCol % cols;
}
result = this._engine.find(term, nextRow, nextCol, searchOptions);
}
this._resultTracker.updateResults(results, this._highlightLimit);
+4 -4
View File
@@ -60,7 +60,7 @@ export class SearchEngine {
this._terminal.clearSelection();
return undefined;
}
if (startCol > this._terminal.cols) {
if (startCol >= this._terminal.cols) {
throw new Error(`Invalid col: ${startCol} to search in terminal of ${this._terminal.cols} cols`);
}
@@ -174,7 +174,7 @@ export class SearchEngine {
this._terminal.clearSelection();
let startRow = this._terminal.buffer.active.baseY + this._terminal.rows - 1;
let startCol = this._terminal.cols;
const startCol = this._terminal.cols;
const isReverseSearch = true;
this._lineCache.initLinesCache();
@@ -186,14 +186,14 @@ export class SearchEngine {
let result: ISearchResult | undefined;
if (prevSelectedPos) {
searchPosition.startRow = startRow = prevSelectedPos.start.y;
searchPosition.startCol = startCol = prevSelectedPos.start.x;
searchPosition.startCol = prevSelectedPos.start.x;
if (cachedSearchTerm !== term) {
// Try to expand selection to right first.
result = this._findInLine(term, searchPosition, searchOptions, false);
if (!result) {
// If selection was not able to be expanded to the right, then try reverse search
searchPosition.startRow = startRow = prevSelectedPos.end.y;
searchPosition.startCol = startCol = prevSelectedPos.end.x;
searchPosition.startCol = prevSelectedPos.end.x;
}
}
}
+16 -2
View File
@@ -414,10 +414,24 @@ test.describe('Search Tests', () => {
});
test.describe('Regression tests', () => {
test('should advance highlight-all scan by buffer match size for wide characters', async () => {
await ctx.page.evaluate(`
window.calls = [];
window.search.onDidChangeResults(e => window.calls.push(e));
`);
await ctx.proxy.resize(3, 5);
await ctx.proxy.write('𝄞𝄞𝄞');
strictEqual(await ctx.page.evaluate(`window.search.findNext('𝄞', { decorations: { activeMatchColorOverviewRuler: '#ff0000', matchOverviewRuler: '#ffff00' } })`), true);
deepStrictEqual(await ctx.page.evaluate('window.calls'), [
{ resultCount: 3, resultIndex: 0 }
]);
await ctx.proxy.resize(80, 24);
});
test.describe('#2444 wrapped line content not being found', () => {
let fixture: string;
test.beforeAll(async () => {
fixture = (await new Promise<Buffer>(r => readFile(resolve(__dirname, '../fixtures/issue-2444'), (err, data) => r(data)))).toString();
fixture = (await new Promise<Buffer>((res, rej) => readFile(resolve(__dirname, '../fixtures/issue-2444'), (err, data) => err ? rej(err) : res(data)))).toString();
if (process.platform !== 'win32') {
fixture = fixture.replace(/\n/g, '\n\r');
}
@@ -501,7 +515,7 @@ test.describe('Search Tests', () => {
window.search.onDidChangeResults(e => window.calls.push(e));
`);
// Move cursor forward 1 time to create a null character, as opposed to regular whitespace
await ctx.proxy.write('\\x1b[CHi Hi');
await ctx.proxy.write('\x1b[CHi Hi');
strictEqual(await ctx.page.evaluate(`window.search.findPrevious('h', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
deepStrictEqual(await ctx.page.evaluate('window.calls'), [
{ resultCount: 2, resultIndex: 1 }
@@ -7,10 +7,10 @@
"rootDir": "..",
"outDir": "../out-benchmark",
"types": ["../../../node_modules/@types/node"],
"moduleResolution": "node",
"moduleResolution": "nodenext",
"strict": false,
"target": "es2021",
"module": "commonjs",
"module": "nodenext",
"paths": {
"common/*": ["../../../src/common/*"],
"browser/*": ["../../../src/browser/*"],
+3 -3
View File
@@ -21,8 +21,8 @@
"package": "../../node_modules/.bin/webpack",
"prepublishOnly": "npm run package",
"start": "node ../../demo/start",
"benchmark": "NODE_PATH=../../out:./out:./out-benchmark/ ../../node_modules/.bin/xterm-benchmark -r 5 -c benchmark/benchmark.json",
"benchmark-baseline": "NODE_PATH=../../out:./out:./out-benchmark/ ../../node_modules/.bin/xterm-benchmark -r 5 -c benchmark/benchmark.json --baseline out-benchmark/benchmark/*benchmark.js",
"benchmark-eval": "NODE_PATH=../../out:./out:./out-benchmark/ ../../node_modules/.bin/xterm-benchmark -r 5 -c benchmark/benchmark.json --eval out-benchmark/benchmark/*benchmark.js"
"benchmark": "../../node_modules/.bin/xterm-benchmark -r 5 -c benchmark/benchmark.json",
"benchmark-baseline": "../../node_modules/.bin/xterm-benchmark -r 5 -c benchmark/benchmark.json --baseline out-benchmark/benchmark/*benchmark.js",
"benchmark-eval": "../../node_modules/.bin/xterm-benchmark -r 5 -c benchmark/benchmark.json --eval out-benchmark/benchmark/*benchmark.js"
}
}
+5 -4
View File
@@ -7,7 +7,8 @@
import type { IBuffer, IBufferCell, IBufferRange, ITerminalAddon, Terminal } from '@xterm/xterm';
import type { IHTMLSerializeOptions, SerializeAddon as ISerializeApi, ISerializeOptions, ISerializeRange } from '@xterm/addon-serialize';
import { IAttributeData, IColor } from 'common/Types';
import { IColor } from 'common/Types';
import { IAttributeData } from 'common/buffer/Types';
import { DEFAULT_ANSI_COLORS } from 'browser/Types';
import { UnderlineStyle } from 'common/buffer/Constants';
@@ -172,7 +173,7 @@ class StringSerializeHandler extends BaseSerializeHandler {
private _thisRowLastSecondChar: IBufferCell = this._buffer.getNullCell();
private _nextRowFirstChar: IBufferCell = this._buffer.getNullCell();
protected _rowEnd(row: number, isLastRow: boolean): void {
// if there is colorful empty cell at line end, whe must pad it back, or the the color block
// if there is colorful empty cell at line end, we must pad it back, or the color block
// will missing
if (this._nullCellCount > 0 && !equalBg(this._cursorStyle, this._backgroundCell)) {
// use clear right to set background.
@@ -220,7 +221,7 @@ class StringSerializeHandler extends BaseSerializeHandler {
// you can't use control sequence to move cursor to (x === row)
(thisRowLastChar.getChars() || thisRowLastChar.getWidth() === 0) &&
// change background of the first wrapped cell also affects BCE
// so we mark it as invalid to simply the process to determine line separator
// so we mark it as invalid to simplify the process to determine line separator
equalBg(thisRowLastChar, nextRowFirstChar)
) {
isValid = true;
@@ -232,7 +233,7 @@ class StringSerializeHandler extends BaseSerializeHandler {
isNextRowFirstCharDoubleWidth &&
(thisRowLastSecondChar.getChars() || thisRowLastSecondChar.getWidth() === 0) &&
// change background of the first wrapped cell also affects BCE
// so we mark it as invalid to simply the process to determine line separator
// so we mark it as invalid to simplify the process to determine line separator
equalBg(thisRowLastChar, nextRowFirstChar) &&
equalBg(thisRowLastSecondChar, nextRowFirstChar)
) {
@@ -192,7 +192,7 @@ test.describe('SerializeAddon', () => {
const cols = 10;
const line = '+'.repeat(cols);
const lines: string[] = [
sgr(FG_P16_GREEN) + line, // Workaround: If we clear all flags a the end, serialize will use \x1b[0m to clear instead of the sepcific disable sequence
sgr(FG_P16_GREEN) + line, // Workaround: If we clear all flags at the end, serialize will use \x1b[0m to clear instead of the specific disable sequence
sgr(INVERSE) + line,
sgr(BOLD) + line,
sgr(UNDERLINED) + line,
@@ -4,10 +4,10 @@
"rootDir": "..",
"outDir": "../out-benchmark",
"types": ["../../../node_modules/@types/node"],
"moduleResolution": "node",
"moduleResolution": "nodenext",
"strict": false,
"target": "es2015",
"module": "commonjs",
"module": "nodenext",
"paths": {
"common/*": ["../../../src/common/*"],
"browser/*": ["../../../src/browser/*"],
+3 -3
View File
@@ -21,8 +21,8 @@
"package": "../../node_modules/.bin/webpack",
"prepublishOnly": "npm run package",
"start": "node ../../demo/start",
"benchmark": "NODE_PATH=../../out:./out:./out-benchmark/ ../../node_modules/.bin/xterm-benchmark -r 5 -c benchmark/benchmark.json out-benchmark/benchmark/*benchmark.js",
"benchmark-baseline": "NODE_PATH=../../out:./out:./out-benchmark/ ../../node_modules/.bin/xterm-benchmark -r 5 -c benchmark/benchmark.json --baseline out-benchmark/benchmark/*benchmark.js",
"benchmark-eval": "NODE_PATH=../../out:./out:./out-benchmark/ ../../node_modules/.bin/xterm-benchmark -r 5 -c benchmark/benchmark.json --eval out-benchmark/benchmark/*benchmark.js"
"benchmark": "../../node_modules/.bin/xterm-benchmark -r 5 -c benchmark/benchmark.json out-benchmark/benchmark/*benchmark.js",
"benchmark-baseline": "../../node_modules/.bin/xterm-benchmark -r 5 -c benchmark/benchmark.json --baseline out-benchmark/benchmark/*benchmark.js",
"benchmark-eval": "../../node_modules/.bin/xterm-benchmark -r 5 -c benchmark/benchmark.json --eval out-benchmark/benchmark/*benchmark.js"
}
}
@@ -2,7 +2,7 @@
* Copyright (c) 2023 The xterm.js authors. All rights reserved.
* @license MIT
*
* UnicodeVersionProvider for V15 with grapeme cluster handleing.
* UnicodeVersionProvider for V15 with grapheme cluster handling.
*/
import type { Terminal, ITerminalAddon, IUnicodeHandling } from '@xterm/xterm';
@@ -78,7 +78,22 @@ test.describe('WebFontsAddon', () => {
const data = await ctx.page.evaluate(`
document.styleSheets[0].insertRule("@font-face {font-family: Kongtext; src: url(/fonts/kongtext.regular.ttf) format('truetype'); unicode-range: U+00A0-00FF}", 0);
`);
deepStrictEqual(await getDocumentFonts(), [{ family: 'Kongtext', status: 'unloaded' }]);
let fonts = await getDocumentFonts();
// safari may have loaded the font, firefox & chrome never load it
if (browser.browserType().name() === 'webkit') {
try {
deepStrictEqual(fonts, [{ family: 'Kongtext', status: 'loading' }]);
} catch (e) {
try {
deepStrictEqual(fonts, [{ family: 'Kongtext', status: 'loaded' }]);
} catch (e) {
deepStrictEqual(fonts, [{ family: 'Kongtext', status: 'unloaded' }]);
}
}
} else {
deepStrictEqual(fonts, [{ family: 'Kongtext', status: 'unloaded' }]);
}
// broken case: webfont in ctor without addon usage
await ctx.page.evaluate(`
@@ -86,15 +101,20 @@ test.describe('WebFontsAddon', () => {
window.helperTerm.open(term.element);
`);
// safari loads the font, firefox & chrome dont
fonts = await getDocumentFonts();
// safari might load the font, firefox & chrome dont
if (browser.browserType().name() === 'webkit') {
try {
deepStrictEqual(await getDocumentFonts(), [{ family: 'Kongtext', status: 'loading' }]);
deepStrictEqual(fonts, [{ family: 'Kongtext', status: 'loading' }]);
} catch (e) {
deepStrictEqual(await getDocumentFonts(), [{ family: 'Kongtext', status: 'loaded' }]);
try {
deepStrictEqual(fonts, [{ family: 'Kongtext', status: 'loaded' }]);
} catch (e) {
deepStrictEqual(fonts, [{ family: 'Kongtext', status: 'unloaded' }]);
}
}
} else {
deepStrictEqual(await getDocumentFonts(), [{ family: 'Kongtext', status: 'unloaded' }]);
deepStrictEqual(fonts, [{ family: 'Kongtext', status: 'unloaded' }]);
}
// good case: addon fixes layout for webfont in ctor
@@ -5,7 +5,6 @@
"lib": [
"es2021",
],
// "downlevelIteration": true,
"rootDir": ".",
"outDir": "../out-test",
"sourceMap": true,
@@ -57,7 +57,8 @@ function isUrl(urlString: string): boolean {
export class LinkComputer {
public static computeLink(y: number, regex: RegExp, terminal: Terminal, activate: (event: MouseEvent, uri: string) => void): ILink[] {
const rex = new RegExp(regex.source, (regex.flags || '') + 'g');
const flags = regex.flags.includes('g') ? regex.flags : `${regex.flags}g`;
const rex = new RegExp(regex.source, flags);
const [lines, startLineIndex] = LinkComputer._getWindowedLineStrings(y - 1, terminal);
const line = lines.join('');
@@ -113,8 +114,8 @@ export class LinkComputer {
let line: IBufferLine | undefined;
let topIdx = lineIndex;
let bottomIdx = lineIndex;
let length = 0;
let content = '';
let length;
let content;
const lines: string[] = [];
if ((line = terminal.buffer.active.getLine(lineIndex))) {
+2 -2
View File
@@ -7,13 +7,13 @@ import type { Terminal, ITerminalAddon, IDisposable } from '@xterm/xterm';
import type { WebLinksAddon as IWebLinksApi } from '@xterm/addon-web-links';
import { ILinkProviderOptions, WebLinkProvider } from './WebLinkProvider';
// consider everthing starting with http:// or https://
// consider everything starting with http:// or https://
// up to first whitespace, `"` or `'` as url
// NOTE: The repeated end clause is needed to not match a dangling `:`
// resembling the old (...)*([^:"\'\\s]) final path clause
// additionally exclude early + final:
// - unsafe from rfc3986: !*'()
// - unsafe chars from rfc1738: {}|\^~[]` (minus [] as we need them for ipv6 adresses, also allow ~)
// - unsafe chars from rfc1738: {}|\^~[]` (minus [] for ipv6 addresses, also allow ~)
// also exclude as finals:
// - final interpunction like ,.!?
// - any sort of brackets <>()[]{} (not spec conform, but often used to enclose urls)
@@ -5,7 +5,6 @@
"lib": [
"es2021",
],
// "downlevelIteration": true,
"rootDir": ".",
"outDir": "../out-test",
"sourceMap": true,
+1 -1
View File
@@ -23,7 +23,7 @@ See the full [API](https://github.com/xtermjs/xterm.js/blob/master/addons/addon-
### Handling Context Loss
The browser may drop WebGL contexts for various reasons like OOM or after the system has been suspended. There is an API exposed that fires the `webglcontextlost` event fired on the canvas so embedders can handle it however they wish. An easy, but suboptimal way, to handle this is by disposing of WebglAddon when the event fires:
The browser may drop WebGL contexts for various reasons like OOM or after the system has been suspended. There is an API exposed that fires the `webglcontextlost` event on the canvas so embedders can handle it however they wish. An easy, but suboptimal way, to handle this is by disposing of WebglAddon when the event fires:
```ts
const terminal = new Terminal();
+1 -1
View File
@@ -3,7 +3,7 @@ import { ICoreBrowserService, IThemeService } from 'browser/services/Services';
import { ReadonlyColorSet } from 'browser/Types';
import { Attributes, BgFlags, ExtFlags, FgFlags, NULL_CELL_CODE, UnderlineStyle } from 'common/buffer/Constants';
import { IDecorationService, IOptionsService } from 'common/services/Services';
import { ICellData } from 'common/Types';
import { ICellData } from 'common/buffer/Types';
import { Terminal } from '@xterm/xterm';
import { rgba } from 'common/Color';
import { treatGlyphAsBackgroundColor } from 'browser/renderer/shared/RendererUtils';
@@ -0,0 +1,87 @@
/**
* Copyright (c) 2026 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { assert } from 'chai';
import { configEquals } from './CharAtlasUtils';
import { ICharAtlasConfig } from './Types';
import { NULL_COLOR } from 'common/Color';
import { IColor } from 'common/Types';
function createTestConfig(overrides: Partial<ICharAtlasConfig> = {}): ICharAtlasConfig {
const color: IColor = { css: '#ffffff', rgba: 0xffffffff };
const contrastCache = {
clear: () => {},
setCss: () => {},
getCss: () => undefined,
setColor: () => {},
getColor: () => undefined
};
const colors = {
foreground: color,
background: color,
cursor: NULL_COLOR,
cursorAccent: NULL_COLOR,
selectionForeground: undefined,
selectionBackgroundTransparent: NULL_COLOR,
selectionBackgroundOpaque: NULL_COLOR,
selectionInactiveBackgroundTransparent: NULL_COLOR,
selectionInactiveBackgroundOpaque: NULL_COLOR,
overviewRulerBorder: NULL_COLOR,
scrollbarSliderBackground: NULL_COLOR,
scrollbarSliderHoverBackground: NULL_COLOR,
scrollbarSliderActiveBackground: NULL_COLOR,
ansi: new Array(256).fill(color),
contrastCache,
halfContrastCache: contrastCache
};
return {
customGlyphs: true,
devicePixelRatio: 1,
deviceMaxTextureSize: 4096,
letterSpacing: 0,
lineHeight: 1,
fontSize: 15,
fontFamily: 'monospace',
fontWeight: 'normal',
fontWeightBold: 'bold',
deviceCellWidth: 10,
deviceCellHeight: 20,
deviceCharWidth: 8,
deviceCharHeight: 16,
allowTransparency: false,
drawBoldTextInBrightColors: true,
minimumContrastRatio: 1,
colors,
...overrides
};
}
describe('CharAtlasUtils', () => {
describe('configEquals', () => {
it('should return true for identical configs', () => {
const a = createTestConfig();
const b = createTestConfig();
assert.ok(configEquals(a, b));
});
it('should return false when deviceMaxTextureSize differs', () => {
const a = createTestConfig();
const b = createTestConfig({ deviceMaxTextureSize: 8192 });
assert.ok(!configEquals(a, b));
});
it('should return false when deviceCellWidth differs', () => {
const a = createTestConfig();
const b = createTestConfig({ deviceCellWidth: 11 });
assert.ok(!configEquals(a, b));
});
it('should return false when deviceCellHeight differs', () => {
const a = createTestConfig();
const b = createTestConfig({ deviceCellHeight: 21 });
assert.ok(!configEquals(a, b));
});
});
});
+3
View File
@@ -59,6 +59,7 @@ export function configEquals(a: ICharAtlasConfig, b: ICharAtlasConfig): boolean
}
}
return a.devicePixelRatio === b.devicePixelRatio &&
a.deviceMaxTextureSize === b.deviceMaxTextureSize &&
a.customGlyphs === b.customGlyphs &&
a.lineHeight === b.lineHeight &&
a.letterSpacing === b.letterSpacing &&
@@ -67,6 +68,8 @@ export function configEquals(a: ICharAtlasConfig, b: ICharAtlasConfig): boolean
a.fontWeight === b.fontWeight &&
a.fontWeightBold === b.fontWeightBold &&
a.allowTransparency === b.allowTransparency &&
a.deviceCellWidth === b.deviceCellWidth &&
a.deviceCellHeight === b.deviceCellHeight &&
a.deviceCharWidth === b.deviceCharWidth &&
a.deviceCharHeight === b.deviceCharHeight &&
a.drawBoldTextInBrightColors === b.drawBoldTextInBrightColors &&
+10 -7
View File
@@ -9,7 +9,7 @@ import { Disposable, toDisposable } from 'common/Lifecycle';
import { Terminal } from '@xterm/xterm';
import { IRenderModel, IWebGL2RenderingContext, IWebGLVertexArrayObject, type IRasterizedGlyph, type ITextureAtlas } from './Types';
import { createProgram, GLTexture, PROJECTION_MATRIX } from './WebglUtils';
import type { IOptionsService } from 'common/services/Services';
import type { ILogService, IOptionsService } from 'common/services/Services';
import { allowRescaling, throwIfFalsy } from 'browser/renderer/shared/RendererUtils';
interface IVertices {
@@ -114,7 +114,8 @@ export class GlyphRenderer extends Disposable {
private readonly _terminal: Terminal,
private readonly _gl: IWebGL2RenderingContext,
private _dimensions: IRenderDimensions,
private readonly _optionsService: IOptionsService
private readonly _optionsService: IOptionsService,
private readonly _logService: ILogService
) {
super();
@@ -127,7 +128,7 @@ export class GlyphRenderer extends Disposable {
TextureAtlas.maxTextureSize = throwIfFalsy(gl.getParameter(gl.MAX_TEXTURE_SIZE) as number | null);
}
this._program = throwIfFalsy(createProgram(gl, vertexShaderSource, createFragmentShaderSource(TextureAtlas.maxAtlasPages)));
this._program = throwIfFalsy(createProgram(gl, vertexShaderSource, createFragmentShaderSource(TextureAtlas.maxAtlasPages), this._logService));
this._register(toDisposable(() => gl.deleteProgram(this._program)));
// Uniform locations
@@ -136,8 +137,9 @@ export class GlyphRenderer extends Disposable {
this._textureLocation = throwIfFalsy(gl.getUniformLocation(this._program, 'u_texture'));
// Create and set the vertex array object
this._vertexArrayObject = gl.createVertexArray();
gl.bindVertexArray(this._vertexArrayObject);
const vertexArrayObject = this._vertexArrayObject = gl.createVertexArray();
this._register(toDisposable(() => gl.deleteVertexArray(vertexArrayObject)));
gl.bindVertexArray(vertexArrayObject);
// Setup a_unitquad, this defines the 4 vertices of a rectangle
const unitQuadVertices = new Float32Array([0, 0, 1, 0, 0, 1, 1, 1]);
@@ -218,7 +220,7 @@ export class GlyphRenderer extends Disposable {
public updateCell(x: number, y: number, code: number, bg: number, fg: number, ext: number, chars: string, width: number, lastBg: number): void {
// Since this function is called for every cell (`rows*cols`), it must be very optimized. It
// should not instantiate any variables unless a new glyph is drawn to the cache where the
// slight slowdown is acceptable for the developer ergonomics provided as it's a once of for
// slight slowdown is acceptable for the developer ergonomics provided as it's a one-off for
// each glyph.
this._updateCell(this._vertices.attributes, x, y, code, bg, fg, ext, chars, width, lastBg);
}
@@ -387,8 +389,9 @@ export class GlyphRenderer extends Disposable {
gl.bindTexture(gl.TEXTURE_2D, this._atlasTextures[i].texture);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, atlas.pages[i].canvas);
gl.generateMipmap(gl.TEXTURE_2D);
this._atlasTextures[i].version = atlas.pages[i].version;
}
+7 -4
View File
@@ -14,6 +14,7 @@ import { RenderModelConstants } from './RenderModel';
import { IRenderModel, IWebGL2RenderingContext, IWebGLVertexArrayObject } from './Types';
import { createProgram, expandFloat32Array, PROJECTION_MATRIX } from './WebglUtils';
import { throwIfFalsy } from 'browser/renderer/shared/RendererUtils';
import type { ILogService } from 'common/services/Services';
const enum VertexAttribLocations {
POSITION = 0,
@@ -89,21 +90,23 @@ export class RectangleRenderer extends Disposable {
private _terminal: Terminal,
private _gl: IWebGL2RenderingContext,
private _dimensions: IRenderDimensions,
private readonly _themeService: IThemeService
private readonly _themeService: IThemeService,
private readonly _logService: ILogService
) {
super();
const gl = this._gl;
this._program = throwIfFalsy(createProgram(gl, vertexShaderSource, fragmentShaderSource));
this._program = throwIfFalsy(createProgram(gl, vertexShaderSource, fragmentShaderSource, this._logService));
this._register(toDisposable(() => gl.deleteProgram(this._program)));
// Uniform locations
this._projectionLocation = throwIfFalsy(gl.getUniformLocation(this._program, 'u_projection'));
// Create and set the vertex array object
this._vertexArrayObject = gl.createVertexArray();
gl.bindVertexArray(this._vertexArrayObject);
const vertexArrayObject = this._vertexArrayObject = gl.createVertexArray();
this._register(toDisposable(() => gl.deleteVertexArray(vertexArrayObject)));
gl.bindVertexArray(vertexArrayObject);
// Setup a_unitquad, this defines the 4 vertices of a rectangle
const unitQuadVertices = new Float32Array([0, 0, 1, 0, 0, 1, 1, 1]);
+28 -11
View File
@@ -69,7 +69,7 @@ export class TextureAtlas implements ITextureAtlas {
private _overflowSizePage: AtlasPage | undefined;
private _tmpCanvas: HTMLCanvasElement;
// A temporary context that glyphs are drawn to before being transfered to the atlas.
// A temporary context that glyphs are drawn to before being transferred to the atlas.
private _tmpCtx: CanvasRenderingContext2D;
private _workBoundingBox: IBoundingBox = { top: 0, left: 0, bottom: 0, right: 0 };
@@ -109,6 +109,7 @@ export class TextureAtlas implements ITextureAtlas {
page.canvas.remove();
}
this._onAddTextureAtlasCanvas.dispose();
this._onRemoveTextureAtlasCanvas.dispose();
}
public warmUp(): void {
@@ -151,7 +152,7 @@ export class TextureAtlas implements ITextureAtlas {
}
private _createNewPage(): AtlasPage {
// Try merge the set of the 4 most used pages of the largest size. This is is deferred to a
// Try merge the set of the 4 most used pages of the largest size. This is deferred to a
// microtask to ensure it does not interrupt textures that will be rendered in the current
// animation frame which would result in blank rendered areas. This is actually not that
// expensive relative to drawing the glyphs, so there is no need to wait for an idle callback.
@@ -190,7 +191,7 @@ export class TextureAtlas implements ITextureAtlas {
return newPage;
}
const sortedMergingPagesIndexes = mergingPages.map(e => e.glyphs[0].texturePage).sort((a, b) => a > b ? 1 : -1);
const sortedMergingPagesIndexes = mergingPages.map(e => e.glyphs[0].texturePage).sort((a, b) => a - b);
const mergedPageIndex = this.pages.length - mergingPages.length;
// Merge into the new page
@@ -529,7 +530,7 @@ export class TextureAtlas implements ITextureAtlas {
let customGlyph = false;
if (this._config.customGlyphs !== false) {
const variantOffset = this._workAttributeData.getUnderlineVariantOffset();
customGlyph = tryDrawCustomGlyph(this._tmpCtx, chars, padding, padding, this._config.deviceCellWidth, this._config.deviceCellHeight, this._config.deviceCharWidth, this._config.deviceCharHeight, this._config.fontSize, this._config.devicePixelRatio, backgroundColor.css, variantOffset);
customGlyph = tryDrawCustomGlyph(this._tmpCtx, chars, padding, padding, this._config.deviceCellWidth, this._config.deviceCellHeight, this._config.deviceCharWidth, this._config.deviceCharHeight, this._config.fontSize, this._config.devicePixelRatio, this._logService, backgroundColor.css, variantOffset);
}
// Whether to clear pixels based on a threshold difference between the glyph color and the
@@ -1079,17 +1080,33 @@ class AtlasPage {
size: number,
sourcePages?: AtlasPage[]
) {
if (sourcePages) {
for (const p of sourcePages) {
this._glyphs.push(...p.glyphs);
this._usedPixels += p._usedPixels;
}
}
this.canvas = createCanvas(document, size, size);
// The canvas needs alpha because we use clearColor to convert the background color to alpha.
// It might also contain some characters with transparent backgrounds if allowTransparency is
// set.
this.ctx = throwIfFalsy(this.canvas.getContext('2d', { alpha: true }));
if (sourcePages) {
if (sourcePages.length === 4) {
// optimized for quadmerge
this._glyphs = this._glyphs.concat(
sourcePages[0].glyphs,
sourcePages[1].glyphs,
sourcePages[2].glyphs,
sourcePages[3].glyphs
);
this._usedPixels = sourcePages[0]._usedPixels +
sourcePages[1]._usedPixels +
sourcePages[2]._usedPixels +
sourcePages[3]._usedPixels;
} else {
// fallback for non quadmerges (should never be used)
for (let i = 0; i < sourcePages.length; ++i) {
this._glyphs = this._glyphs.concat(sourcePages[i].glyphs);
this._usedPixels += sourcePages[i]._usedPixels;
}
}
}
}
public clear(): void {
@@ -1124,7 +1141,7 @@ function clearColor(imageData: ImageData, bg: IColor, fg: IColor, enableThreshol
// were covered (fg=#8ae234, bg=#c4a000).
const threshold = Math.floor((Math.abs(r - fgR) + Math.abs(g - fgG) + Math.abs(b - fgB)) / 12);
// Set alpha channel of relevent pixels to 0
// Set alpha channel of relevant pixels to 0
let isEmpty = true;
for (let offset = 0; offset < imageData.data.length; offset += 4) {
// Check exact match
+1
View File
@@ -28,6 +28,7 @@ export interface ICursorRenderModel {
export interface IWebGL2RenderingContext extends WebGLRenderingContext {
vertexAttribDivisor(index: number, divisor: number): void;
createVertexArray(): IWebGLVertexArrayObject;
deleteVertexArray(vao: IWebGLVertexArrayObject): void;
bindVertexArray(vao: IWebGLVertexArrayObject): void;
drawElementsInstanced(mode: number, count: number, type: number, offset: number, instanceCount: number): void;
}
+4 -2
View File
@@ -9,7 +9,7 @@ import { ICharacterJoinerService, ICharSizeService, ICoreBrowserService, IRender
import { ITerminal } from 'browser/Types';
import { Disposable, toDisposable } from 'common/Lifecycle';
import { getSafariVersion, isSafari } from 'common/Platform';
import { ICoreService, IDecorationService, IOptionsService } from 'common/services/Services';
import { ICoreService, IDecorationService, ILogService, IOptionsService } from 'common/services/Services';
import { IWebGL2RenderingContext } from './Types';
import { WebglRenderer } from './WebglRenderer';
import { Emitter, EventUtils } from 'common/Event';
@@ -40,7 +40,7 @@ export class WebglAddon extends Disposable implements ITerminalAddon, IWebglApi
};
const gl = document.createElement('canvas').getContext('webgl2', contextAttributes) as IWebGL2RenderingContext;
if (!gl) {
throw new Error('Webgl2 is only supported on Safari 16 and above');
throw new Error('WebGL2 is only supported on Safari 16 and above');
}
}
super();
@@ -65,6 +65,7 @@ export class WebglAddon extends Disposable implements ITerminalAddon, IWebglApi
const charSizeService: ICharSizeService = unsafeCore._charSizeService;
const coreBrowserService: ICoreBrowserService = unsafeCore._coreBrowserService;
const decorationService: IDecorationService = unsafeCore._decorationService;
const logService: ILogService = unsafeCore._logService;
const themeService: IThemeService = unsafeCore._themeService;
this._renderer = this._register(new WebglRenderer(
@@ -74,6 +75,7 @@ export class WebglAddon extends Disposable implements ITerminalAddon, IWebglApi
coreBrowserService,
coreService,
decorationService,
logService,
optionsService,
themeService,
this._customGlyphs,
+35 -17
View File
@@ -10,12 +10,12 @@ import { CursorBlinkStateManager } from './CursorBlinkStateManager';
import { observeDevicePixelDimensions } from './DevicePixelObserver';
import { IRenderDimensions, IRenderer, IRequestRedrawEvent } from 'browser/renderer/shared/Types';
import { ICharSizeService, ICharacterJoinerService, ICoreBrowserService, IThemeService } from 'browser/services/Services';
import { CharData, IBufferLine, ICellData } from 'common/Types';
import { CharData, IBufferLine, ICellData } from 'common/buffer/Types';
import { AttributeData } from 'common/buffer/AttributeData';
import { CellData } from 'common/buffer/CellData';
import { Attributes, Content, FgFlags, NULL_CELL_CHAR, NULL_CELL_CODE } from 'common/buffer/Constants';
import { TextBlinkStateManager } from 'browser/renderer/shared/TextBlinkStateManager';
import { ICoreService, IDecorationService, IOptionsService } from 'common/services/Services';
import { ICoreService, IDecorationService, ILogService, IOptionsService } from 'common/services/Services';
import { Terminal } from '@xterm/xterm';
import { GlyphRenderer } from './GlyphRenderer';
import { RectangleRenderer } from './RectangleRenderer';
@@ -77,6 +77,7 @@ export class WebglRenderer extends Disposable implements IRenderer {
private readonly _coreBrowserService: ICoreBrowserService,
private readonly _coreService: ICoreService,
private readonly _decorationService: IDecorationService,
private readonly _logService: ILogService,
private readonly _optionsService: IOptionsService,
private readonly _themeService: IThemeService,
private readonly _customGlyphs: boolean = true,
@@ -122,19 +123,19 @@ export class WebglRenderer extends Disposable implements IRenderer {
this._deviceMaxTextureSize = this._gl.getParameter(this._gl.MAX_TEXTURE_SIZE);
this._register(addDisposableListener(this._canvas, 'webglcontextlost', (e) => {
console.log('webglcontextlost event received');
this._logService.debug('webglcontextlost event received');
// Prevent the default behavior in order to enable WebGL context restoration.
e.preventDefault();
// Wait a few seconds to see if the 'webglcontextrestored' event is fired.
// If not, dispatch the onContextLoss notification to observers.
this._contextRestorationTimeout = setTimeout(() => {
this._contextRestorationTimeout = undefined;
console.warn('webgl context not restored; firing onContextLoss');
this._logService.warn('webgl context not restored; firing onContextLoss');
this._onContextLoss.fire(e);
}, 3000 /* ms */);
}));
this._register(addDisposableListener(this._canvas, 'webglcontextrestored', (e) => {
console.warn('webglcontextrestored event received');
this._logService.warn('webglcontextrestored event received');
clearTimeout(this._contextRestorationTimeout);
this._contextRestorationTimeout = undefined;
// The texture atlas and glyph renderer must be fully reinitialized
@@ -158,6 +159,8 @@ export class WebglRenderer extends Disposable implements IRenderer {
this._isAttached = this._core.screenElement!.isConnected;
this._register(toDisposable(() => {
clearTimeout(this._contextRestorationTimeout);
this._contextRestorationTimeout = undefined;
for (const l of this._renderLayers) {
l.dispose();
}
@@ -274,8 +277,8 @@ export class WebglRenderer extends Disposable implements IRenderer {
* Initializes members dependent on WebGL context state.
*/
private _initializeWebGLState(): [RectangleRenderer, GlyphRenderer] {
this._rectangleRenderer.value = new RectangleRenderer(this._terminal, this._gl, this.dimensions, this._themeService);
this._glyphRenderer.value = new GlyphRenderer(this._terminal, this._gl, this.dimensions, this._optionsService);
this._rectangleRenderer.value = new RectangleRenderer(this._terminal, this._gl, this.dimensions, this._themeService, this._logService);
this._glyphRenderer.value = new GlyphRenderer(this._terminal, this._gl, this.dimensions, this._optionsService, this._logService);
// Update dimensions and acquire char atlas
this.handleCharSizeChanged();
@@ -424,8 +427,8 @@ export class WebglRenderer extends Disposable implements IRenderer {
let line: IBufferLine;
let joinedRanges: [number, number][];
let isJoined: boolean;
let skipJoinedCheckUntilX: number = 0;
let isValidJoinRange: boolean = true;
let skipJoinedCheckUntilX: number;
let isValidJoinRange: boolean;
let lastCharX: number;
let range: [number, number];
let isCursorRow: boolean;
@@ -453,7 +456,18 @@ export class WebglRenderer extends Disposable implements IRenderer {
for (y = start; y <= end; y++) {
row = y + terminal.buffer.ydisp;
line = terminal.buffer.lines.get(row)!;
const bufferLine = terminal.buffer.lines.get(row);
if (!bufferLine) {
this._model.lineLengths[y] = 0;
for (x = 0; x < terminal.cols; x++) {
j = ((y * terminal.cols) + x) * RenderModelConstants.INDICIES_PER_CELL;
modelUpdated = true;
this._nullModelCell(x, y, j, 0, 0, 0);
}
this._setRowBlinkState(y, false);
continue;
}
line = bufferLine;
let rowHasBlinkingCells = false;
this._model.lineLengths[y] = 0;
isCursorRow = cursorY === row;
@@ -584,13 +598,9 @@ export class WebglRenderer extends Disposable implements IRenderer {
// Null out non-first cells
for (x++; x <= lastCharX; x++) {
j = ((y * terminal.cols) + x) * RenderModelConstants.INDICIES_PER_CELL;
this._glyphRenderer.value!.updateCell(x, y, NULL_CELL_CODE, 0, 0, 0, NULL_CELL_CHAR, 0, 0);
this._model.cells[j] = NULL_CELL_CODE;
// Don't re-resolve the cell color since multi-colored ligature backgrounds are not
// supported
this._model.cells[j + RenderModelConstants.BG_OFFSET] = this._cellColorResolver.result.bg;
this._model.cells[j + RenderModelConstants.FG_OFFSET] = this._cellColorResolver.result.fg;
this._model.cells[j + RenderModelConstants.EXT_OFFSET] = this._cellColorResolver.result.ext;
this._nullModelCell(x, y, j, this._cellColorResolver.result.bg, this._cellColorResolver.result.fg, this._cellColorResolver.result.ext);
}
x--; // Go back to the previous update cell for next iteration
}
@@ -604,6 +614,14 @@ export class WebglRenderer extends Disposable implements IRenderer {
this._updateTextBlinkState();
}
private _nullModelCell(x: number, y: number, cellIndex: number, bg: number, fg: number, ext: number): void {
this._glyphRenderer.value!.updateCell(x, y, NULL_CELL_CODE, bg, fg, ext, NULL_CELL_CHAR, 0, 0);
this._model.cells[cellIndex] = NULL_CELL_CODE;
this._model.cells[cellIndex + RenderModelConstants.BG_OFFSET] = bg;
this._model.cells[cellIndex + RenderModelConstants.FG_OFFSET] = fg;
this._model.cells[cellIndex + RenderModelConstants.EXT_OFFSET] = ext;
}
private _resetBlinkingRowState(): void {
this._rowHasBlinkingCells = new Array(this._terminal.rows).fill(false);
this._rowHasBlinkingCellsCount = 0;
@@ -661,10 +679,10 @@ export class WebglRenderer extends Disposable implements IRenderer {
this.dimensions.device.canvas.height = this._terminal.rows * this.dimensions.device.cell.height;
this.dimensions.device.canvas.width = this._terminal.cols * this.dimensions.device.cell.width;
// The the size of the canvas on the page. It's important that this rounds to nearest integer
// The size of the canvas on the page. It's important that this rounds to nearest integer
// and not ceils as browsers often have floating point precision issues where
// `window.devicePixelRatio` ends up being something like `1.100000023841858` for example, when
// it's actually 1.1. Ceiling may causes blurriness as the backing canvas image is 1 pixel too
// it's actually 1.1. Ceiling may cause blurriness as the backing canvas image is 1 pixel too
// large for the canvas element size.
this.dimensions.css.canvas.height = Math.round(this.dimensions.device.canvas.height / this._devicePixelRatio);
this.dimensions.css.canvas.width = Math.round(this.dimensions.device.canvas.width / this._devicePixelRatio);
+7 -6
View File
@@ -4,6 +4,7 @@
*/
import { throwIfFalsy } from 'browser/renderer/shared/RendererUtils';
import type { ILogService } from 'common/services/Services';
/**
* A matrix that when multiplies will translate 0-1 coordinates (left to right,
@@ -16,21 +17,21 @@ export const PROJECTION_MATRIX = new Float32Array([
-1, 1, 0, 1
]);
export function createProgram(gl: WebGLRenderingContext, vertexSource: string, fragmentSource: string): WebGLProgram | undefined {
export function createProgram(gl: WebGLRenderingContext, vertexSource: string, fragmentSource: string, logService: ILogService): WebGLProgram | undefined {
const program = throwIfFalsy(gl.createProgram());
gl.attachShader(program, throwIfFalsy(createShader(gl, gl.VERTEX_SHADER, vertexSource)));
gl.attachShader(program, throwIfFalsy(createShader(gl, gl.FRAGMENT_SHADER, fragmentSource)));
gl.attachShader(program, throwIfFalsy(createShader(gl, gl.VERTEX_SHADER, vertexSource, logService)));
gl.attachShader(program, throwIfFalsy(createShader(gl, gl.FRAGMENT_SHADER, fragmentSource, logService)));
gl.linkProgram(program);
const success = gl.getProgramParameter(program, gl.LINK_STATUS);
if (success) {
return program;
}
console.error(gl.getProgramInfoLog(program));
logService.error(gl.getProgramInfoLog(program));
gl.deleteProgram(program);
}
export function createShader(gl: WebGLRenderingContext, type: number, source: string): WebGLShader | undefined {
export function createShader(gl: WebGLRenderingContext, type: number, source: string, logService: ILogService): WebGLShader | undefined {
const shader = throwIfFalsy(gl.createShader(type));
gl.shaderSource(shader, source);
gl.compileShader(shader);
@@ -39,7 +40,7 @@ export function createShader(gl: WebGLRenderingContext, type: number, source: st
return shader;
}
console.error(gl.getShaderInfoLog(shader));
logService.error(gl.getShaderInfoLog(shader));
gl.deleteShader(shader);
}
@@ -5,7 +5,7 @@
import { CustomGlyphDefinitionType, CustomGlyphScaleType, CustomGlyphVectorType, type CustomGlyphCharacterDefinition, type CustomGlyphDefinitionPart, type CustomGlyphPathDrawFunctionDefinition } from './Types';
/* eslint-disable max-len */
/* oxlint-disable @stylistic/max-len -- generated glyph path data */
const enum Shapes {
/** │ */ TOP_TO_BOTTOM = 'M.5,0 L.5,1',
@@ -4,6 +4,7 @@
*/
import { throwIfFalsy } from 'browser/renderer/shared/RendererUtils';
import type { ILogService } from 'common/services/Services';
import { customGlyphDefinitions } from './CustomGlyphDefinitions';
import { CustomGlyphDefinitionType, CustomGlyphScaleType, CustomGlyphVectorType, type CustomGlyphDefinitionPart, type CustomGlyphPathDrawFunctionDefinition, type CustomGlyphPatternDefinition, type ICustomGlyphSolidOctantBlockVector, type ICustomGlyphVectorShape } from './Types';
@@ -22,6 +23,7 @@ export function tryDrawCustomGlyph(
deviceCharHeight: number,
fontSize: number,
devicePixelRatio: number,
logService: ILogService,
backgroundColor?: string,
variantOffset: number = 0
): boolean {
@@ -30,7 +32,7 @@ export function tryDrawCustomGlyph(
// Normalize to array for uniform handling
const parts = Array.isArray(unifiedCharDefinition) ? unifiedCharDefinition : [unifiedCharDefinition];
for (const part of parts) {
drawDefinitionPart(ctx, part, xOffset, yOffset, deviceCellWidth, deviceCellHeight, deviceCharWidth, deviceCharHeight, fontSize, devicePixelRatio, backgroundColor, variantOffset);
drawDefinitionPart(ctx, part, xOffset, yOffset, deviceCellWidth, deviceCellHeight, deviceCharWidth, deviceCharHeight, fontSize, devicePixelRatio, logService, backgroundColor, variantOffset);
}
return true;
}
@@ -49,6 +51,7 @@ function drawDefinitionPart(
deviceCharHeight: number,
fontSize: number,
devicePixelRatio: number,
logService: ILogService,
backgroundColor?: string,
variantOffset: number = 0
): void {
@@ -79,7 +82,7 @@ function drawDefinitionPart(
drawPatternChar(ctx, part.data, drawXOffset, drawYOffset, drawWidth, drawHeight, variantOffset);
break;
case CustomGlyphDefinitionType.PATH_FUNCTION:
drawPathFunctionCharacter(ctx, part.data, drawXOffset, drawYOffset, drawWidth, drawHeight, devicePixelRatio, part.strokeWidth);
drawPathFunctionCharacter(ctx, part.data, drawXOffset, drawYOffset, drawWidth, drawHeight, devicePixelRatio, logService, part.strokeWidth);
break;
case CustomGlyphDefinitionType.PATH:
drawPathDefinitionCharacter(ctx, part.data, drawXOffset, drawYOffset, drawWidth, drawHeight, devicePixelRatio, part.strokeWidth);
@@ -88,7 +91,7 @@ function drawDefinitionPart(
drawPathNegativeDefinitionCharacter(ctx, part.data, drawXOffset, drawYOffset, drawWidth, drawHeight, devicePixelRatio, backgroundColor);
break;
case CustomGlyphDefinitionType.VECTOR_SHAPE:
drawVectorShape(ctx, part.data, drawXOffset, drawYOffset, drawWidth, drawHeight, fontSize, devicePixelRatio);
drawVectorShape(ctx, part.data, drawXOffset, drawYOffset, drawWidth, drawHeight, fontSize, devicePixelRatio, logService);
break;
case CustomGlyphDefinitionType.BRAILLE:
drawBrailleCharacter(ctx, part.data, drawXOffset, drawYOffset, drawWidth, drawHeight);
@@ -218,8 +221,8 @@ function drawPathDefinitionCharacter(
const rx = parseFloat(args[0]) * deviceCellWidth;
const ry = parseFloat(args[1]) * deviceCellHeight;
const xAxisRotation = parseFloat(args[2]) * Math.PI / 180;
const largeArcFlag = parseInt(args[3]);
const sweepFlag = parseInt(args[4]);
const largeArcFlag = parseInt(args[3], 10);
const sweepFlag = parseInt(args[4], 10);
const x = xOffset + parseFloat(args[5]) * deviceCellWidth;
const y = yOffset + parseFloat(args[6]) * deviceCellHeight;
drawSvgArc(ctx, currentX, currentY, rx, ry, xAxisRotation, largeArcFlag, sweepFlag, x, y);
@@ -510,6 +513,7 @@ function drawPathFunctionCharacter(
deviceCellWidth: number,
deviceCellHeight: number,
devicePixelRatio: number,
logService: ILogService,
strokeWidth?: number
): void {
ctx.save();
@@ -536,7 +540,7 @@ function drawPathFunctionCharacter(
}
const f = svgToCanvasInstructionMap[type];
if (!f) {
console.error(`Could not find drawing instructions for "${type}"`);
logService.error(`Could not find drawing instructions for "${type}"`);
continue;
}
const args: string[] = instruction.substring(1).split(',');
@@ -598,7 +602,8 @@ function drawVectorShape(
deviceCellWidth: number,
deviceCellHeight: number,
fontSize: number,
devicePixelRatio: number
devicePixelRatio: number,
logService: ILogService
): void {
// Clip the cell to make sure drawing doesn't occur beyond bounds
const clipRegion = new Path2D();
@@ -619,7 +624,7 @@ function drawVectorShape(
}
const f = svgToCanvasInstructionMap[type];
if (!f) {
console.error(`Could not find drawing instructions for "${type}"`);
logService.error(`Could not find drawing instructions for "${type}"`);
continue;
}
const args: string[] = instruction.substring(1).split(',');
-1
View File
@@ -25,7 +25,6 @@
]
},
"strict": true,
"downlevelIteration": true,
"experimentalDecorators": true,
"types": [
"../../../node_modules/@types/mocha"
+2 -2
View File
@@ -23,12 +23,12 @@ declare module '@xterm/addon-webgl' {
public readonly onChangeTextureAtlas: IEvent<HTMLCanvasElement>;
/**
* An event that is fired when the a new page is added to the texture atlas.
* An event that is fired when a new page is added to the texture atlas.
*/
public readonly onAddTextureAtlasCanvas: IEvent<HTMLCanvasElement>;
/**
* An event that is fired when the a page is removed from the texture atlas.
* An event that is fired when a page is removed from the texture atlas.
*/
public readonly onRemoveTextureAtlasCanvas: IEvent<HTMLCanvasElement>;