How to lower screen resolution on mobile to render app faster?

[CrazyFlasher]

For example mobile screen is 2000x1500, but I want to run app fullscreen with 320x240 resolution for better performance. But strech to fullscreen.
Is it possible? If yes, then how?

[peteshand]

Should be possible, but sorry don't have an example for you.

If you're looking to improve performance make sure you have anti aliasing turned off and also if you're targeting html probably worth taking a look at changing 'initial-scale' meta:

[CrazyFlasher]

I am targeting Android. I did this

<window background="0x000000" orientation="landscape" allow-high-dpi="false" color-depth="16" resizable="false" />
	<window width="640" height="480" />

/**
	 * stage listener for resize events
	 */
	private function onResize(event:Event = null):Void
	{
		trace("Lib.application.window.scale ", Lib.application.window.scale, stage.stageWidth, Lib.application.window.width);
		view.width = Lib.application.window.width;
		view.height = Lib.application.window.height;
		awayStats.x = stage.stageWidth - awayStats.width;
	}

view.width will be in this 2650 instead of 640.

if I remove this lines:

view.width = Lib.application.window.width;
view.height = Lib.application.window.height;

view will be smaller than stage

[CrazyFlasher]

I need to strech view3D somehow with quality losses, but without performance losses

[jgranick]

I'm not sure how SDL handles this but you might be able to do display mode switching

I think the API in Lime is like this (when fullscreen):

var display = stage.window.display;
var supportedModes = display.supportedModes;
for (mode in supportedModes)
{
    // Select the mode you want
    display.currentMode = mode;
    break;
}