eiac/xterm.js
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GPU ascii rendering

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This commit is contained in:
Daniel Imms
2017-08-30 19:12:29 -07:00
parent e98794a0a7
commit 5ce39d3c81
6 changed files with 179 additions and 142 deletions
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src/InputHandler.ts
+8 -7
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@@ -36,13 +36,14 @@ export class InputHandler implements IInputHandler {
// dont overflow left
if (this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 1]) {
if (!this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 1][CHAR_DATA_WIDTH_INDEX]) {
// found empty cell after fullwidth, need to go 2 cells back
if (this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 2])
if (this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 2]) {
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 2][CHAR_DATA_CHAR_INDEX] += char;
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 2][3] = char.charCodeAt(0);
}
} else {
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 1][CHAR_DATA_CHAR_INDEX] += char;
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 1][3] = char.charCodeAt(0);
}
this._terminal.updateRange(this._terminal.buffer.y);
}
@@ -81,21 +82,21 @@ export class InputHandler implements IInputHandler {
if (removed[CHAR_DATA_WIDTH_INDEX] === 0
&& this._terminal.buffer.lines.get(row)[this._terminal.cols - 2]
&& this._terminal.buffer.lines.get(row)[this._terminal.cols - 2][CHAR_DATA_WIDTH_INDEX] === 2) {
this._terminal.buffer.lines.get(row)[this._terminal.cols - 2] = [this._terminal.curAttr, ' ', 1];
this._terminal.buffer.lines.get(row)[this._terminal.cols - 2] = [this._terminal.curAttr, ' ', 1, ' '.charCodeAt(0)];
}
// insert empty cell at cursor
this._terminal.buffer.lines.get(row).splice(this._terminal.buffer.x, 0, [this._terminal.curAttr, ' ', 1]);
this._terminal.buffer.lines.get(row).splice(this._terminal.buffer.x, 0, [this._terminal.curAttr, ' ', 1, ' '.charCodeAt(0)]);
}
}
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x] = [this._terminal.curAttr, char, ch_width];
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x] = [this._terminal.curAttr, char, ch_width, char.charCodeAt(0)];
this._terminal.buffer.x++;
this._terminal.updateRange(this._terminal.buffer.y);
// fullwidth char - set next cell width to zero and advance cursor
if (ch_width === 2) {
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x] = [this._terminal.curAttr, '', 0];
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x] = [this._terminal.curAttr, '', 0, undefined];
this._terminal.buffer.x++;
}
}