create texture dynamically in preload

[markp]

I have a graphics object that I use to draw a filled square with a thick border.  I can create a texture using this graphics object and generateTexture() method so that I can create square sprites.  I needed to add some dynamic text layered onto the sprite so I just started with a group, added the sprite for the square and then added text.  The result is text on top of the square.

 

If I create say 100 of these groups my FPS on my test Nexus 7 is down at about 5fps.  Pretty low so I thought I'd just see the effect of replacing the contents of the group with a single sprite created from a single image.  I used the mushroom2.png from the example assets and achieved 60fps on the Nexus which is awesome.

 

My conclusion is that my method of creating my dynamic square sprite with a layered piece of dynamic text in a group is not optimal for the rendering and that a single sprite would be optimal.  So I have 2 questions really:

 

1. Can I draw a filled-in square and write a little text somehow to create a single texture in the preload method of my stage?

 

2. If I can create a texture, is it possible to load the texture at runtime from the variable holding the texture reference as opposed to using a url?

 

[markp]

I solved my issue by just using a bitmapData which exposes its own underlying canvas.  I can do whatever graphics and text I want on this canvas.

 

Loading the image drawn on the canvas is simply a case of calling the canvase method toDataUrl() and passing the return value to the second parameter of game.load.image.