void LLViewerMediaImpl::setVisible(bool visible)
{
	LLPluginClassMedia* plugin = getMediaPlugin();
	mVisible = visible;
	
	if(mVisible)
	{
		if(plugin && plugin->isPluginExited())
		{
			destroyMediaSource();
		}
		
		if(!plugin)
		{
			createMediaSource();
		}
	}
	
	if(plugin)
	{
		plugin->setPriority(mVisible?LLPluginClassBasic::PRIORITY_NORMAL:LLPluginClassBasic::PRIORITY_SLEEP);
	}
}
void LLViewerMediaImpl::update()
{
	LLPluginClassMedia* plugin = getMediaPlugin();
	if (!plugin)
	{
		return;
	}
	
	plugin->idle();
	
	if (plugin->isPluginExited())
	{
		destroyMediaSource();
		return;
	}

	if (!plugin->textureValid())
	{
		return;
	}
	
	if(mSuspendUpdates || !mVisible)
	{
		return;
	}
	
	LLViewerTexture* placeholder_image = updatePlaceholderImage();
		
	if(placeholder_image)
	{
		LLRect dirty_rect;
		if (plugin->getDirty(&dirty_rect))
		{
			// Constrain the dirty rect to be inside the texture
			S32 x_pos = llmax(dirty_rect.mLeft, 0);
			S32 y_pos = llmax(dirty_rect.mBottom, 0);
			S32 width = llmin(dirty_rect.mRight, placeholder_image->getWidth()) - x_pos;
			S32 height = llmin(dirty_rect.mTop, placeholder_image->getHeight()) - y_pos;
			
			if(width > 0 && height > 0)
			{

				U8* data = plugin->getBitsData();

				// Offset the pixels pointer to match x_pos and y_pos
				data += ( x_pos * plugin->getTextureDepth() * plugin->getBitsWidth() );
				data += ( y_pos * plugin->getTextureDepth() );
				
				placeholder_image->setSubImage(
						data, 
						plugin->getBitsWidth(), 
						plugin->getBitsHeight(),
						x_pos, 
						y_pos, 
						width, 
						height,
						TRUE);		// force a fast update (i.e. don't call analyzeAlpha, etc.)

			}
			
			plugin->resetDirty();
		}
	}
}