Add SW sync support

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

2 files changed, 40 insertions, 0 deletions

diff --git a/kms++/inc/kms++/kms++.h b/kms++/inc/kms++/kms++.h
index 6fc6977..f15c916 100644
--- a/kms++/inc/kms++/kms++.h
+++ b/kms++/inc/kms++/kms++.h
@@ -14,3 +14,4 @@
 #include "blob.h"
 #include "pipeline.h"
 #include "pagefliphandler.h"
+#include "swsync.h"
diff --git a/kms++/inc/kms++/swsync.h b/kms++/inc/kms++/swsync.h
new file mode 100644
index 0000000..04b1596
--- /dev/null
+++ b/kms++/inc/kms++/swsync.h
@@ -0,0 +1,39 @@
+#pragma once
+
+#include <cstdint>
+
+namespace kms
+{
+
+class SWSync;
+
+class SWSyncTimeline
+{
+public:
+	SWSyncTimeline();
+	~SWSyncTimeline();
+
+	SWSync *createFence(uint32_t value);
+	void signal(uint32_t value);
+	uint32_t value() const { return m_value; };
+
+private:
+	int m_fd;
+	uint32_t m_value;
+};
+
+class SWSync
+{
+public:
+	~SWSync();
+
+	int fd() { return m_fd; };
+
+private:
+	friend SWSyncTimeline;
+	SWSync(int fd);
+
+	int m_fd;
+};
+
+}