From 748e2e9a706a1fc129524f8978b3d2c5a37df193 Mon Sep 17 00:00:00 2001
From: Connor McLaughlin <stenzek@gmail.com>
Date: Sun, 14 Feb 2021 00:52:18 +1000
Subject: [PATCH] DRMDisplay: Add mode queries

---
 src/common/drm_display.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/common/drm_display.h b/src/common/drm_display.h
index 789b9be69..d0411a50f 100644
--- a/src/common/drm_display.h
+++ b/src/common/drm_display.h
@@ -18,6 +18,15 @@ public:
   u32 GetWidth() const { return m_mode->hdisplay; }
   u32 GetHeight() const { return m_mode->vdisplay; }
 
+  u32 GetModeCount() const { return m_connector->count_modes; }
+  u32 GetModeWidth(u32 i) const { return m_connector->modes[i].hdisplay; }
+  u32 GetModeHeight(u32 i) const { return m_connector->modes[i].vdisplay; }
+  float GetModeRefreshRate(u32 i) const
+  {
+    return (static_cast<float>(m_connector->modes[i].clock) * 1000.0f) /
+           (static_cast<float>(m_connector->modes[i].htotal) * static_cast<float>(m_connector->modes[i].vtotal));
+  }
+
   std::optional<u32> AddBuffer(u32 width, u32 height, u32 format, u32 handle, u32 pitch, u32 offset);
   void RemoveBuffer(u32 fb_id);
   void PresentBuffer(u32 fb_id, bool wait_for_vsync);
@@ -33,6 +42,8 @@ private:
   int m_card_id = 0;
   int m_card_fd = -1;
   u32 m_crtc_id = 0;
+
+  drmModeRes* m_resources = nullptr;
   drmModeConnector* m_connector = nullptr;
   drmModeModeInfo* m_mode = nullptr;
 };