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();
}
}
public static AsTexture fromBitmapData(AsBitmapData data, bool generateMipMaps, bool optimizeForRenderTexture, float scale)
{
int origWidth = data.getWidth();
int origHeight = data.getHeight();
int legalWidth = AsGlobal.getNextPowerOfTwo(origWidth);
int legalHeight = AsGlobal.getNextPowerOfTwo(origHeight);
AsContext3D context = AsStarling.getContext();
AsBitmapData potData = null;
if (context == null)
{
throw new AsMissingContextError();
}
bc.flash.display3D.textures.AsTexture nativeTexture = context.createTexture(legalWidth, legalHeight, AsContext3DTextureFormat.BGRA, optimizeForRenderTexture);
if (legalWidth > origWidth || legalHeight > origHeight)
{
potData = new AsBitmapData(legalWidth, legalHeight, true, 0);
potData.copyPixels(data, data.getRect(), sOrigin);
data = potData;
}
uploadBitmapData(nativeTexture, data, generateMipMaps);
AsConcreteTexture concreteTexture = new AsConcreteTexture(nativeTexture, AsContext3DTextureFormat.BGRA, legalWidth, legalHeight, generateMipMaps, true, optimizeForRenderTexture, scale);
if (AsStarling.getHandleLostContext())
{
concreteTexture.restoreOnLostContext(data);
}
else
{
if (potData != null)
{
potData.dispose();
}
}
if (origWidth == legalWidth && origHeight == legalHeight)
{
return(concreteTexture);
}
else
{
return(new AsSubTexture(concreteTexture, new AsRectangle(0, 0, origWidth / scale, origHeight / scale), true));
}
}