BitmapText is rendering incorrectly when setting horizontal origin to 0.5 on games with `pixelArt` set to `true`

[incubusknight]

Version

• Phaser Version: 4.0.0 (Vite bundler)

• Operating system: Windows 11

• Browser: Chrome 146.0.7680.178

Description

On games with pixelArt set to true, when a BitmapText horizontal origin is set to 0.5 some instances render incorrectly. In the example below, the instance with the text "Poker" is truncating the bitmaps for each letter:

I did some fiddling and I think this has to do with fractional horizontal coordinates when trying to position some texts. The problem does not happen when horizontal origin is set to 1 or 0:

Example Test Code

Game config:

const config: Phaser.Types.Core.GameConfig = {
  type: Phaser.AUTO,
  width: 800,
  height: 450,
  parent: 'game-container',
  pixelArt: true,
  roundPixels: true,
  scale: {
    zoom: 2,
    mode: Phaser.Scale.FIT,
    autoCenter: Phaser.Scale.CENTER_BOTH
  },
  physics: {
    default: 'arcade',
    arcade: {
      debug: false,
      gravity: { y: 0, x: 0 }
    }
  },
  backgroundColor: '#fff',
  scene: [
    new LoaderScene({ key: 'loader' }),
    new TitleControllerScene({ key: 'title-controller' }),
    new TitleMenuScene({ key: 'title-menu' }),
  ]
};

Scene code:

preload() {
  this.load.bitmapFont('font-impact', '/fonts/Impact-BMFont.png', '/fonts/Impact-BMFont.xml');
}

create() {
  // Render bug
  this.scene.add.bitmapText(0, 0, 'font-impact', 'Poker').setOrigin(0.5, 0.5);

  // Works fine
  this.scene.add.bitmapText(0, 50, 'font-impact', 'New Game').setOrigin(0.5, 0.5);
}

It is important to note that it makes no difference if I set or not the bitmapText font size.

Additional Information

The issue does not happen when pixelArt is false.

Here's the bitmap font files needed to reproduce.

Impact-BMFont.xml