From 36481b8d211d516af2a94d83c02ef7054a6f80fc Mon Sep 17 00:00:00 2001
From: Robert Mader <robert.mader@collabora.com>
Date: Thu, 30 Dec 2021 19:40:47 +0100
Subject: [PATCH] gen_default_modes: Add more refresh rates to fallback modes

Refresh rates >60Hz become ever more common. In order to allow users
to keep hight refresh rates when not running at a natively advertized
resolution, add common refresh rates to our fallback modes.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2189>
---
 src/backends/native/gen-default-modes.py | 35 ++++++++++++++++--------
 1 file changed, 23 insertions(+), 12 deletions(-)

diff --git a/src/backends/native/gen-default-modes.py b/src/backends/native/gen-default-modes.py
index fed514d45..79542f82f 100755
--- a/src/backends/native/gen-default-modes.py
+++ b/src/backends/native/gen-default-modes.py
@@ -55,6 +55,15 @@ common_resolutions = [
     (5120, 2880),
 ]
 
+common_refresh_rates = [
+    60,
+    90,
+    120,
+    144,
+    165,
+    240,
+]
+
 output_lines = [
     "/* Generated by gen-default-modes.py */\n",
     "static const drmModeModeInfo meta_default_landscape_drm_mode_infos[] = {",
@@ -84,7 +93,7 @@ def drm_mode_info_from_modeline(line):
 
 def portrait_drm_mode_info_from_modeline(line):
     sline = line.split()
-    return "{ %d, %d, %d, %d, %d, 0, %d, %d, %d, %d, 0, 0, %s, DRM_MODE_TYPE_DEFAULT, \"%dx%d_60.00\" }," % \
+    return "{ %d, %d, %d, %d, %d, 0, %d, %d, %d, %d, 0, 0, %s, DRM_MODE_TYPE_DEFAULT, \"%dx%d_%s }," % \
         (int(float(sline[2]) * 1000),
          int(sline[7]),
          int(sline[8]),
@@ -95,24 +104,26 @@ def portrait_drm_mode_info_from_modeline(line):
          int(sline[5]),
          int(sline[6]),
          sync_flags(sline[12], sline[11]),
-         int(sline[7]), int(sline[3]))
+         int(sline[7]), int(sline[3]), sline[1].split("_")[1])
 
 for resolution in common_resolutions:
-    cvt = os.popen("%s %s %s" % ('cvt', resolution[0], resolution[1]))
-    cvt.readline() # discard comment line
-    line = cvt.readline()
-    output_lines.append(drm_mode_info_from_modeline(line))
-    cvt.close()
+    for refresh_rate in common_refresh_rates:
+        cvt = os.popen("%s %s %s %s" % ('cvt', resolution[0], resolution[1], refresh_rate))
+        cvt.readline() # discard comment line
+        line = cvt.readline()
+        output_lines.append(drm_mode_info_from_modeline(line))
+        cvt.close()
 output_lines.append("};")
 
 output_lines.append("")
 output_lines.append("static const drmModeModeInfo meta_default_portrait_drm_mode_infos[] = {")
 for resolution in common_resolutions:
-    cvt = os.popen("%s %s %s" % ('cvt', resolution[0], resolution[1]))
-    cvt.readline() # discard comment line
-    line = cvt.readline()
-    output_lines.append(portrait_drm_mode_info_from_modeline(line))
-    cvt.close()
+    for refresh_rate in common_refresh_rates:
+        cvt = os.popen("%s %s %s %s" % ('cvt', resolution[0], resolution[1], refresh_rate))
+        cvt.readline() # discard comment line
+        line = cvt.readline()
+        output_lines.append(portrait_drm_mode_info_from_modeline(line))
+        cvt.close()
 output_lines.append("};")
 
 try: