rdpgfx/client: Update gfx->UnacknowlegedFrame correctly

diff --git a/channels/rdpgfx/client/rdpgfx_main.c b/channels/rdpgfx/client/rdpgfx_main.c
index 8bd9559..aeb4b36 100644 (file)
--- a/channels/rdpgfx/client/rdpgfx_main.c
+++ b/channels/rdpgfx/client/rdpgfx_main.c
@@ -363,6 +363,10 @@ static UINT rdpgfx_send_frame_acknowledge_pdu(RdpgfxClientContext* context,
                            pdu->totalFramesDecoded); /* totalFramesDecoded (4 bytes) */
        error = callback->channel->Write(callback->channel, (UINT32) Stream_Length(s),
                                         Stream_Buffer(s), NULL);
+
+       if (error == CHANNEL_RC_OK) /* frame successfully acked */
+               gfx->UnacknowledgedFrames--;
+
 fail:
        Stream_Free(s, TRUE);
        return error;
@@ -804,7 +808,6 @@ static UINT rdpgfx_recv_end_frame_pdu(RDPGFX_CHANNEL_CALLBACK* callback,
                }
        }
 
-       gfx->UnacknowledgedFrames--;
        gfx->TotalDecodedFrames++;
 
        if (!gfx->sendFrameAcks)