From 74d819b35ac3151aff0dc86874aafac21e07a9aa Mon Sep 17 00:00:00 2001
From: Sergiy Dvodnenko <dvodnenkos@gmail.com>
Date: Sun, 31 Mar 2024 06:59:50 +0300
Subject: [PATCH] Saturn: finish reading one sector when a PLAY command is
 immediately interrupted by a SEEK command (Astal sound stutters) (#893)

---
 support/saturn/saturn.h      | 1 +
 support/saturn/saturncdd.cpp | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/support/saturn/saturn.h b/support/saturn/saturn.h
index 33f17e6..b3b2574 100644
--- a/support/saturn/saturn.h
+++ b/support/saturn/saturn.h
@@ -72,6 +72,7 @@ private:
 	bool stop_pend;
 	bool seek_pend;
 	bool read_pend;
+	bool final_read;
 	bool seek_ring;
 	bool seek_ring2;
 	bool pause_pend;
diff --git a/support/saturn/saturncdd.cpp b/support/saturn/saturncdd.cpp
index 63e7f0d..7fa1258 100644
--- a/support/saturn/saturncdd.cpp
+++ b/support/saturn/saturncdd.cpp
@@ -609,6 +609,7 @@ void satcdd_t::CommandExec() {
 		this->index = this->toc.GetIndexByLBA(this->track, this->seek_lba);
 
 		this->seek_pend = true;
+		this->final_read = this->read_pend;
 		this->read_pend = false;
 		this->pause_pend = false;
 		this->speed = comm[10] == 1 ? 1 : 2;
@@ -731,7 +732,7 @@ void satcdd_t::Process(uint8_t* time_mode) {
 #endif // SATURN_DEBUG
 	}
 	else if (this->seek_pend) {
-		this->state = Seek;
+		this->state = this->final_read ? Read : Seek;
 
 		LBAToMSF(this->lba + 150, &amsf);
 		if (this->lba < 0)
@@ -757,6 +758,8 @@ void satcdd_t::Process(uint8_t* time_mode) {
 			seek_time = 1;
 		//}
 
+		this->final_read = false;
+
 		*time_mode = 1;// this->speed;
 
 #ifdef SATURN_DEBUG