Wait until last line is complete before finishing it.

diff --git a/custom.cpp b/custom.cpp
index de96f401639eb7d5eaf4372ec230f8b089fa7138..d9d24fa5d13df5409ff00b833e9f89bc8a242b05 100644 (file)
--- a/custom.cpp
+++ b/custom.cpp
@@ -14328,7 +14328,7 @@ static void hsync_handler(void)
                events_schedule();
 
        }
-       if (vpos == maxvpos_display_vsync && !maxvpos_display_vsync_next) {
+       if (vpos == maxvpos_display_vsync + 1 && !maxvpos_display_vsync_next) {
                hsync_record_line_state_last(next_lineno, nextline_how, 0);
                inputdevice_read_msg(true);
                vsync_display_render();
@@ -14339,7 +14339,7 @@ static void hsync_handler(void)
                reset_autoscale();
                display_vsync_counter++;
                maxvpos_display_vsync_next = true;
-       } else if (vpos != maxvpos_display_vsync && maxvpos_display_vsync_next) {
+       } else if (vpos != maxvpos_display_vsync + 1 && maxvpos_display_vsync_next) {
                // protect against weird VPOSW writes causing continuous vblanks
                maxvpos_display_vsync_next = false;
        }