From 573d40b64bee1655a65d4bbe3d784046eb7a0ccf Mon Sep 17 00:00:00 2001
From: dreamsourcelabTAI <tzz@dreamsourcelab.com>
Date: Sat, 27 Apr 2024 22:13:03 +0800
Subject: [PATCH] fix: the cursor time is overflow on dso mode

---
 DSView/pv/view/ruler.cpp | 11 +++++++++--
 DSView/pv/view/view.cpp  |  4 +++-
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/DSView/pv/view/ruler.cpp b/DSView/pv/view/ruler.cpp
index 61b9353d..8b889f6c 100644
--- a/DSView/pv/view/ruler.cpp
+++ b/DSView/pv/view/ruler.cpp
@@ -174,10 +174,17 @@ QString Ruler::format_time(double t)
 
 QString Ruler::format_real_time(uint64_t delta_index, uint64_t sample_rate)
 {
-    uint64_t delta_time = std::pow(10, 12) / sample_rate * delta_index;
+    double v1 = (double)std::pow(10, 12) / (double)sample_rate;
+    double delta_time_double = v1 * delta_index;
+    uint64_t delta_time = v1 * delta_index;
 
-    if (delta_time == 0)
+    if (delta_time_double > UINT64_MAX){
+        return "INF";
+    }
+
+    if (delta_time == 0) {
         return "0";
+    }
 
     int zero = 0;
     int prefix = (int)floor(log10(delta_time));
diff --git a/DSView/pv/view/view.cpp b/DSView/pv/view/view.cpp
index bd44b325..c35f8f86 100644
--- a/DSView/pv/view/view.cpp
+++ b/DSView/pv/view/view.cpp
@@ -1135,7 +1135,9 @@ QString View::get_measure(QString option)
 
 QString View::get_cm_time(int index)
 {
-    return _ruler->format_real_time(get_cursor_samples(index), _session->cur_snap_samplerate());
+    uint64_t sampleIndex = get_cursor_samples(index);
+    uint64_t sampleRate = _session->cur_snap_samplerate();
+    return _ruler->format_real_time(sampleIndex, sampleRate);
 }
 
 QString View::get_cm_delta(int index1, int index2)