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Avoid to create an array when setting the text matrix

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This commit is contained in:
Calixte Denizet 2025-04-05 18:27:31 +02:00
parent 9217d253aa
commit 4c63905a18
3 changed files with 20 additions and 10 deletions
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3
src/core/evaluator.js
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@ -2237,6 +2237,9 @@ class PartialEvaluator {
}
continue;
}
case OPS.setTextMatrix:
operatorList.addOp(fn, [new Float32Array(args)]);
continue;
case OPS.markPoint:
case OPS.markPointProps:
case OPS.beginCompat:

3
src/core/operator_list.js
View file

@ -787,6 +787,9 @@ class OperatorList {
transfers.push(bbox.buffer);
}
break;
case OPS.setTextMatrix:
transfers.push(argsArray[i][0].buffer);
break;
}
}
return transfers;

24
src/display/canvas.js
View file

@ -17,7 +17,6 @@ import {
DrawOPS,
FeatureTest,
FONT_IDENTITY_MATRIX,
IDENTITY_MATRIX,
ImageKind,
info,
OPS,
@ -311,7 +310,7 @@ class CanvasExtraState {
fontSizeScale = 1;
textMatrix = IDENTITY_MATRIX;
textMatrix = null;
textMatrixScale = 1;
@ -1611,7 +1610,7 @@ class CanvasGraphics {
// Text
beginText() {
this.current.textMatrix = IDENTITY_MATRIX;
this.current.textMatrix = null;
this.current.textMatrixScale = 1;
this.current.x = this.current.lineX = 0;
this.current.y = this.current.lineY = 0;
@ -1732,12 +1731,13 @@ class CanvasGraphics {
this.moveText(x, y);
}
setTextMatrix(a, b, c, d, e, f) {
this.current.textMatrix = [a, b, c, d, e, f];
this.current.textMatrixScale = Math.hypot(a, b);
setTextMatrix(matrix) {
const { current } = this;
current.textMatrix = matrix;
current.textMatrixScale = Math.hypot(matrix[0], matrix[1]);
this.current.x = this.current.lineX = 0;
this.current.y = this.current.lineY = 0;
current.x = current.lineX = 0;
current.y = current.lineY = 0;
}
nextLine() {
@ -1904,7 +1904,9 @@ class CanvasGraphics {
!current.patternFill;
ctx.save();
ctx.transform(...current.textMatrix);
if (current.textMatrix) {
ctx.transform(...current.textMatrix);
}
ctx.translate(current.x, current.y + current.textRise);
if (fontDirection > 0) {
@ -2099,7 +2101,9 @@ class CanvasGraphics {
this._cachedGetSinglePixelWidth = null;
ctx.save();
ctx.transform(...current.textMatrix);
if (current.textMatrix) {
ctx.transform(...current.textMatrix);
}
ctx.translate(current.x, current.y + current.textRise);
ctx.scale(textHScale, fontDirection);