From ba900be300c87d1fa8c56433f64a83fbea05e1c4 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Sun, 7 Nov 2021 11:08:29 -0500
Subject: visualization / renderer: fixes and fixes.

Fixed incorrect values shown for denominator of current time singature.
Fixed hidding OSD while rendering completely messing up the whole thing.
FPS of offscreen rendering is no longer capped.
---
 visualization/qmpvisualization.cpp | 53 +++++++++++++++++++++-----------------
 1 file changed, 29 insertions(+), 24 deletions(-)

diff --git a/visualization/qmpvisualization.cpp b/visualization/qmpvisualization.cpp
index 207b8cd..e18426c 100644
--- a/visualization/qmpvisualization.cpp
+++ b/visualization/qmpvisualization.cpp
@@ -84,7 +84,10 @@ void qmpVisualization::showThread()
     sm->smUpdateFunc(h);
     sm->smQuitFunc(closeh);
     sm->smWinTitle("QMidiPlayer Visualization");
-    sm->smSetFPS(vsync ? FPS_VSYNC : tfps);
+    if (rendermode)
+        sm->smSetFPS(0);
+    else
+        sm->smSetFPS(vsync ? FPS_VSYNC : tfps);
     sm->smNoSuspend(true);
     sm->smInit();
     shouldclose = false;
@@ -959,11 +962,6 @@ bool qmpVisualization::update()
             sm->smRenderQuad(&q);
         }
     }
-    if (osdpos == 4)
-    {
-        sm->smRenderEnd();
-        return shouldclose;
-    }
     uint32_t ltpc = ~0u;
     for (uint32_t i = elb; i < pool.size(); ++i)
     {
@@ -1009,21 +1007,24 @@ bool qmpVisualization::update()
     int xp = (osdpos & 1) ? wwidth - step - 1 : 1;
     int yp = osdpos < 2 ? wheight - step * 5 - 4 : step + 4;
     int align = osdpos & 1 ? ALIGN_RIGHT : ALIGN_LEFT;
-    font2.updateString(L"Title: %ls", api->getWTitle().c_str());
-    font2.render(xp, yp, 0.5, 0xFFFFFFFF, align);
-    font2.render(xp - 1, yp - 1, 0.5, 0xFF000000, align);
-    font.updateString(L"Time Sig: %d/%d", cts >> 8, 1 << (cts & 0xFF));
-    font.render(xp, yp += step, 0.5, 0xFFFFFFFF, align);
-    font.render(xp - 1, yp - 1, 0.5, 0xFF000000, align);
-    font.updateString(L"Key Sig: %ls", ts.c_str());
-    font.render(xp, yp += step, 0.5, 0xFFFFFFFF, align);
-    font.render(xp - 1, yp - 1, 0.5, 0xFF000000, align);
-    font.updateString(L"Tempo: %.2f", 60. / (ctp / 1e6));
-    font.render(xp, yp += step, 0.5, 0xFFFFFFFF, align);
-    font.render(xp - 1, yp - 1, 0.5, 0xFF000000, align);
-    font.updateString(L"Current tick: %d", ctk);
-    font.render(xp, yp += step, 0.5, 0xFFFFFFFF, align);
-    font.render(xp - 1, yp - 1, 0.5, 0xFF000000, align);
+    if (osdpos != 4)
+    {
+        font2.updateString(L"Title: %ls", api->getWTitle().c_str());
+        font2.render(xp, yp, 0.5, 0xFFFFFFFF, align);
+        font2.render(xp - 1, yp - 1, 0.5, 0xFF000000, align);
+        font.updateString(L"Time Sig: %d/%d", cts >> 8, 1 << (cts & 0xFF));
+        font.render(xp, yp += step, 0.5, 0xFFFFFFFF, align);
+        font.render(xp - 1, yp - 1, 0.5, 0xFF000000, align);
+        font.updateString(L"Key Sig: %ls", ts.c_str());
+        font.render(xp, yp += step, 0.5, 0xFFFFFFFF, align);
+        font.render(xp - 1, yp - 1, 0.5, 0xFF000000, align);
+        font.updateString(L"Tempo: %.2f", 60. / (ctp / 1e6));
+        font.render(xp, yp += step, 0.5, 0xFFFFFFFF, align);
+        font.render(xp - 1, yp - 1, 0.5, 0xFF000000, align);
+        font.updateString(L"Current tick: %d", ctk);
+        font.render(xp, yp += step, 0.5, 0xFFFFFFFF, align);
+        font.render(xp - 1, yp - 1, 0.5, 0xFF000000, align);
+    }
     if (!rendermode)
     {
         font.updateString(L"FPS: %.2f", sm->smGetFPS());
@@ -1210,12 +1211,12 @@ void qmpVisualization::init()
         memset(rpnval, 0xFF, sizeof(rpnval));
         memset(rpnid, 0xFF, sizeof(rpnid));
         std::sort(this->tspool.begin(), this->tspool.end());
-        for (uint32_t tk = 0, n = 4, s = 0; tk <= this->api->getMaxTick();)
+        for (uint32_t tk = 0, n = 4, s = 0, d = 4; tk <= this->api->getMaxTick();)
         {
             while (tk < (s >= this->tspool.size() ? this->api->getMaxTick() : this->tspool[s].first))
             {
                 this->pool.push_back(new MidiVisualEvent{tk, tk, 0, 0, 999});
-                tk += n * this->api->getDivision();
+                tk += n * this->api->getDivision() * 4 / d;
             }
             tk = (s >= this->tspool.size() ? this->api->getMaxTick() : this->tspool[s].first);
             if (tk == this->api->getMaxTick())
@@ -1224,7 +1225,11 @@ void qmpVisualization::init()
                 ++tk;
                 break;
             }
-            else n = this->tspool[s++].second >> 24;
+            else
+            {
+                n = this->tspool[s].second >> 24;
+                d = 1 << ((this->tspool[s++].second >> 16) & 0xff);
+            }
         }
         std::sort(this->pool.begin(), this->pool.end(), cmp);
     }
-- 
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