Connector: add get_mode(xres, yres, refresh)

2 files changed, 20 insertions, 0 deletions

diff --git a/libkms++/connector.cpp b/libkms++/connector.cpp
index e507c9e..5a6fdd9 100644
--- a/libkms++/connector.cpp
+++ b/libkms++/connector.cpp
@@ -114,6 +114,25 @@ Videomode Connector::get_mode(const string& mode) const
         throw invalid_argument(mode + ": mode not found");
 }
 
+Videomode Connector::get_mode(unsigned xres, unsigned yres, unsigned refresh) const
+{
+	auto c = m_priv->drm_connector;
+
+	for (int i = 0; i < c->count_modes; i++) {
+		drmModeModeInfo& m = c->modes[i];
+
+		if (m.hdisplay != xres || m.vdisplay != yres)
+			continue;
+
+		if (refresh && m.vrefresh != refresh)
+			continue;
+
+		return drm_mode_to_video_mode(c->modes[i]);
+	}
+
+	throw invalid_argument("mode not found");
+}
+
 bool Connector::connected() const
 {
 	return m_priv->drm_connector->connection == DRM_MODE_CONNECTED ||
diff --git a/libkms++/connector.h b/libkms++/connector.h
index a897d31..cc04d52 100644
--- a/libkms++/connector.h
+++ b/libkms++/connector.h
@@ -17,6 +17,7 @@ public:
 	Videomode get_default_mode() const;
 
 	Videomode get_mode(const std::string& mode) const;
+	Videomode get_mode(unsigned xres, unsigned yres, unsigned refresh) const;
 
 	Crtc* get_current_crtc() const;
 	std::vector<Crtc*> get_possible_crtcs() const;