From c45112d4babb508c0471a2c12fd9cd407a6981ee Mon Sep 17 00:00:00 2001
From: Toni Wilen <twilen@winuae.net>
Date: Sat, 15 Feb 2020 10:32:16 +0200
Subject: [PATCH] Ignore next key release support.

---
 include/keybuf.h |  1 +
 keybuf.cpp       | 16 +++++++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/include/keybuf.h b/include/keybuf.h
index 5c47174f..01f629f0 100644
--- a/include/keybuf.h
+++ b/include/keybuf.h
@@ -18,5 +18,6 @@ extern void keybuf_init (void);
 extern int getcapslockstate (void);
 extern void setcapslockstate (int);
 extern void keybuf_inject(const uae_char*);
+extern void keybuf_ignore_next_release(void);
 
 #endif /* UAE_KEYBUF_H */
diff --git a/keybuf.cpp b/keybuf.cpp
index c637cc24..87778023 100644
--- a/keybuf.cpp
+++ b/keybuf.cpp
@@ -32,6 +32,7 @@ static int keyinject_offset;
 static uae_u8 keyinject_previous;
 static bool keyinject_state;
 static bool keyinject_do;
+static bool ignore_next_release;
 
 struct kbtab
 {
@@ -252,8 +253,16 @@ int record_key (int kc)
 int record_key_direct (int kc)
 {
 	int kpb_next = kpb_first + 1;
+	int kcd = (kc << 7) | (kc >> 1);
 
-	//write_log (_T("got kc %02X\n"), ((kc << 7) | (kc >> 1)) & 0xff);
+	if (ignore_next_release) {
+		ignore_next_release = false;
+		if (kcd & 0x80) {
+			return 0;
+		}
+	}
+
+	//write_log (_T("got kc %02X\n"), kcd & 0xff);
 	if (kpb_next == KEYBUF_SIZE)
 		kpb_next = 0;
 	if (kpb_next == kpb_last) {
@@ -274,6 +283,11 @@ void keybuf_init (void)
 	inputdevice_updateconfig (&changed_prefs, &currprefs);
 }
 
+void keybuf_ignore_next_release(void)
+{
+	ignore_next_release = true;
+}
+
 void keybuf_inject(const uae_char *txt)
 {
 	uae_char *newbuf = xmalloc(uae_char, strlen(txt) + 1);
-- 
2.47.3