/// <summary>
/// Render the background texture when called.
/// </summary>
/// <returns>Is background updated.</returns>
public bool RenderBackgoundTextureOnDemand()
{
// if Background is not initialized we are not rendering
if (m_videoOverlayRendererHandler == System.IntPtr.Zero)
{
return(false);
}
// render next frame to texture
Tango.Common.RetCodes ret =
(Tango.Common.RetCodes)TangoVideoOverlayAPI.VideoOverlayRenderFrame(m_videoOverlayRendererHandler,
m_backgroundTexture.GetNativeTextureID(),
m_backgroundTexture.width,
m_backgroundTexture.height);
if (ret != Tango.Common.RetCodes.kCAPISuccess)
{
DebugLogger.WriteToLog(DebugLogger.EDebugLevel.DEBUG_ERROR,
"Failed to render video overlay texture with error code:" + ret);
return(false);
}
#if (UNITY_EDITOR || UNITY_STANDALONE_OSX)
//issue plugin event to render right after rendering thread finished rendering
Plugin.IssuePluginEvent(Plugin.PluginEvents.RenderFrameEvent);
#elif (UNITY_IPHONE || UNITY_ANDROID)
GL.InvalidateState();
#else
#error platform is not supported
#endif
return(true);
}
/// <summary>
/// Render the latest frame.
/// </summary>
/// <param name="textureID"> Texture handle.</param>
/// <param name="width"> Width of the texture.</param>
/// <param name="height"> Height of the texture.</param>
/// <param name="timestamp"> Timestamp to be filled out by the Tango API.</param>
public static void RenderLatestFrame(int textureID, int width, int height, ref double timestamp)
{
if (!m_isInit)
{
DebugLogger.GetInstance.WriteToLog(DebugLogger.EDebugLevel.DEBUG_WARN,
"VideoOveralyProvider.RenderLatestFrame : Not Initialized!");
return;
}
TangoVideoOverlayAPI.VideoOverlayRenderLatestFrame(TangoApplication.Instance.Handle,
textureID,
width,
height,
ref timestamp);
}
/// <summary>
/// Init the background texture at end of the frame.
/// </summary>
/// <returns>Yield return.</returns>
private IEnumerator InitBackground()
{
// wait for end of frame to not interfere with rendering thread on mac
yield return(new WaitForEndOfFrame());
Synchronizer sync = gameObject.GetComponent <Synchronizer>();
m_videoOverlayRendererHandler = TangoVideoOverlayAPI.VideoOverlayInitialize(sync.handler);
if (m_videoOverlayRendererHandler == System.IntPtr.Zero)
{
DebugLogger.WriteToLog(DebugLogger.EDebugLevel.DEBUG_WARN, "Failed to initialize VideoOverlay");
}
#if (UNITY_EDITOR || UNITY_STANDALONE_OSX)
//issue plugin event to render right after rendering thread finished rendering
Plugin.IssuePluginEvent(Plugin.PluginEvents.InitBackgroundEvent);
#elif (UNITY_IPHONE || UNITY_ANDROID)
GL.InvalidateState();
#else
#error platform is not supported
#endif
}
/// <summary>
/// Render the background texture at the end of frame.
/// </summary>
/// <returns>Yield return.</returns>
private IEnumerator RenderBackgoundTexture()
{
while (is_runningBackgroundRenderLoop)
{
// if Background is not initialized we are not rendering
if (m_videoOverlayRendererHandler == System.IntPtr.Zero)
{
yield return(null);
}
// wait for end of frame to not interfere with rendering thread on mac
yield return(new WaitForEndOfFrame());
// render next frame to texture
Tango.Common.RetCodes ret = (Tango.Common.RetCodes)TangoVideoOverlayAPI.VideoOverlayRenderFrame(m_videoOverlayRendererHandler,
m_backgroundTexture.GetNativeTextureID(),
m_backgroundTexture.width,
m_backgroundTexture.height);
if (ret != Tango.Common.RetCodes.kCAPISuccess)
{
DebugLogger.WriteToLog(DebugLogger.EDebugLevel.DEBUG_ERROR,
"Failed to render video overlay texture with error code:" + ret);
}
#if (UNITY_EDITOR || UNITY_STANDALONE_OSX)
// issue plugin event to render right after rendering thread finished rendering
Plugin.IssuePluginEvent(Plugin.PluginEvents.RenderFrameEvent);
#elif (UNITY_IPHONE || UNITY_ANDROID)
GL.InvalidateState();
#else
#error platform is not supported
#endif
// yield now to let class stop this coroutine if needed
yield return(null);
}
}
/// <summary>
/// Shutdown the video overlay provider.
/// </summary>
public static void Shutdown()
{
m_isInit = false;
TangoVideoOverlayAPI.VideoOverlayShutdown(TangoApplication.Instance.Handle);
}
/// <summary>
/// Initialize the video overlay provider.
/// </summary>
public static void Init()
{
m_isInit = true;
TangoVideoOverlayAPI.VideoOverlayInitialize(TangoApplication.Instance.Handle);
}
