From cb40a1c510245ed2a1691a63f9ac3c104932429f Mon Sep 17 00:00:00 2001
From: Dor Askayo <dor.askayo@gmail.com>
Date: Sun, 11 Feb 2024 02:17:46 +0200
Subject: [PATCH] output: Add meta_output_info_get_min_refresh_rate()

This function gets the minimum refresh rate of an output if it was
found in EDID.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3576>
---
 src/backends/meta-output.c | 19 +++++++++++++++++++
 src/backends/meta-output.h |  3 +++
 2 files changed, 22 insertions(+)

diff --git a/src/backends/meta-output.c b/src/backends/meta-output.c
index 3e8234933..b40ce2798 100644
--- a/src/backends/meta-output.c
+++ b/src/backends/meta-output.c
@@ -509,6 +509,25 @@ meta_output_set_privacy_screen_enabled (MetaOutput  *output,
   return TRUE;
 }
 
+gboolean
+meta_output_info_get_min_refresh_rate (const MetaOutputInfo *output_info,
+                                       int                  *min_refresh_rate)
+{
+  int min_vert_rate_hz;
+
+  if (!output_info->edid_info)
+    return FALSE;
+
+  min_vert_rate_hz = output_info->edid_info->min_vert_rate_hz;
+
+  if (min_vert_rate_hz <= 0)
+    return FALSE;
+
+  *min_refresh_rate = min_vert_rate_hz;
+
+  return TRUE;
+}
+
 void
 meta_output_set_color_space (MetaOutput           *output,
                              MetaOutputColorspace  color_space)
diff --git a/src/backends/meta-output.h b/src/backends/meta-output.h
index c20d83a1b..bfd32e21a 100644
--- a/src/backends/meta-output.h
+++ b/src/backends/meta-output.h
@@ -195,6 +195,9 @@ META_EXPORT_TEST
 void meta_output_info_parse_edid (MetaOutputInfo *output_info,
                                   GBytes         *edid);
 
+gboolean meta_output_info_get_min_refresh_rate (const MetaOutputInfo *output_info,
+                                                int                  *min_refresh_rate);
+
 G_DEFINE_AUTOPTR_CLEANUP_FUNC (MetaOutputInfo, meta_output_info_unref)
 
 #define META_TYPE_OUTPUT (meta_output_get_type ())