Improved frame timing stability.

diff --git a/custom.cpp b/custom.cpp
index c1dd65c5e805795343003e6736e12b7cd3ea212d..7f412d533887fe793e7d34022f1b2c5a61274ede 100644 (file)
--- a/custom.cpp
+++ b/custom.cpp
@@ -8157,7 +8157,7 @@ static bool framewait (void)
                if (!currprefs.cpu_thread) {
                        while (!currprefs.turbo_emulation) {
                                float v = rpt_vsync(clockadjust) / (syncbase / 1000.0);
-                               if (v >= -2)
+                               if (v >= -3)
                                        break;
                                rtg_vsynccheck();
                                maybe_process_pull_audio();
@@ -8166,8 +8166,7 @@ static bool framewait (void)
                        }
                        while (rpt_vsync(clockadjust) < 0) {
                                rtg_vsynccheck();
-                               if (audio_is_pull_event())
-                                       break;
+                               maybe_process_pull_audio();
                        }
                }
                idletime += read_processor_time() - start;
@@ -8179,12 +8178,13 @@ static bool framewait (void)
                        t += read_processor_time () - curr_time;
                }
                t += frameskipt_avg;
-               vsynctimeperline = (vstb - t) / 3;
-               if (vsynctimeperline < 0)
-                       vsynctimeperline = 0;
-               else if (vsynctimeperline > vstb / 3)
-                       vsynctimeperline = vstb / 3;
-               
+
+               vsynctimeperline = (vstb - t) / 4;
+               if (vsynctimeperline < 1)
+                       vsynctimeperline = 1;
+               else if (vsynctimeperline > vstb / 4)
+                       vsynctimeperline = vstb / 4;
+
                frame_shown = true;
 
        }