From 34a3e4916fc076d4a687d96ac4ad4484ad046d6d Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 20 Oct 2017 11:32:18 +0300
Subject: Videomode: add to_string()

---
 kms++/inc/kms++/videomode.h |  2 ++
 kms++/src/videomode.cpp     | 11 +++++++++++
 2 files changed, 13 insertions(+)

(limited to 'kms++')

diff --git a/kms++/inc/kms++/videomode.h b/kms++/inc/kms++/videomode.h
index 39e5639..d7f5258 100644
--- a/kms++/inc/kms++/videomode.h
+++ b/kms++/inc/kms++/videomode.h
@@ -48,6 +48,8 @@ struct Videomode
 	void set_interlace(bool ilace);
 	void set_hsync(SyncPolarity pol);
 	void set_vsync(SyncPolarity pol);
+
+	std::string to_string() const;
 };
 
 struct Videomode videomode_from_timings(uint32_t clock_khz,
diff --git a/kms++/src/videomode.cpp b/kms++/src/videomode.cpp
index 4964a57..b8bd797 100644
--- a/kms++/src/videomode.cpp
+++ b/kms++/src/videomode.cpp
@@ -1,6 +1,7 @@
 #include <xf86drm.h>
 #include <xf86drmMode.h>
 #include <math.h>
+#include <sstream>
 
 #include <kms++/kms++.h>
 #include "helpers.h"
@@ -87,6 +88,16 @@ void Videomode::set_vsync(SyncPolarity pol)
 	}
 }
 
+string Videomode::to_string() const
+{
+	std::stringstream ss;
+	ss << hdisplay << "x" << vdisplay;
+	if (interlace())
+		ss << "i";
+	ss << "@" << calculated_vrefresh();
+	return ss.str();
+}
+
 Videomode videomode_from_timings(uint32_t clock_khz,
 				 uint16_t hact, uint16_t hfp, uint16_t hsw, uint16_t hbp,
 				 uint16_t vact, uint16_t vfp, uint16_t vsw, uint16_t vbp)
-- 
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