public static void uploadBitmapData(bc.flash.display3D.textures.AsTexture nativeTexture, AsBitmapData data, bool generateMipmaps)
{
nativeTexture.uploadFromBitmapData(data);
if(generateMipmaps && data.getWidth() > 1 && data.getHeight() > 1)
{
int currentWidth = data.getWidth() >> 1;
int currentHeight = data.getHeight() >> 1;
int level = 1;
AsBitmapData canvas = new AsBitmapData(currentWidth, currentHeight, true, 0);
AsMatrix transform = new AsMatrix(.5f, 0, 0, .5f);
AsRectangle bounds = new AsRectangle();
while(currentWidth >= 1 || currentHeight >= 1)
{
bounds.width = currentWidth;
bounds.height = currentHeight;
canvas.fillRect(bounds, (uint)(0));
canvas.draw(data, transform, null, null, null, true);
nativeTexture.uploadFromBitmapData(canvas, (uint)(level++));
transform.scale(0.5f, 0.5f);
currentWidth = currentWidth >> 1;
currentHeight = currentHeight >> 1;
}
canvas.dispose();
}
}
