From 8d72090afef998f96f243ac83e23b1bdc30667d1 Mon Sep 17 00:00:00 2001
From: Guido Günther <agx@sigxcpu.org>
Date: Thu, 28 Jun 2018 12:35:55 +0200
Subject: drm: Allow to add additional modes
This allows to add additional modes to the list of available video modes
using VESA Coordinated Video Timing information.
Closes #1080
---
backend/drm/drm.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
(limited to 'backend')
diff --git a/backend/drm/drm.c b/backend/drm/drm.c
index c5db480e..39906342 100644
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@@ -566,6 +566,33 @@ error_conn:
return false;
}
+bool wlr_drm_connector_add_mode(struct wlr_output *output,
+ const drmModeModeInfo *modeinfo) {
+ struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
+
+ assert(modeinfo);
+ if (modeinfo->type != DRM_MODE_TYPE_USERDEF) {
+ return false;
+ }
+
+ struct wlr_drm_mode *mode = calloc(1, sizeof(*mode));
+ if (!mode) {
+ return false;
+ }
+ memcpy(&mode->drm_mode, modeinfo, sizeof(*modeinfo));
+
+ mode->wlr_mode.width = mode->drm_mode.hdisplay;
+ mode->wlr_mode.height = mode->drm_mode.vdisplay;
+ mode->wlr_mode.refresh = mode->drm_mode.vrefresh;
+
+ wlr_log(L_INFO, "Registered custom mode "
+ "%"PRId32"x%"PRId32"@%"PRId32,
+ mode->wlr_mode.width, mode->wlr_mode.height,
+ mode->wlr_mode.refresh);
+ wl_list_insert(&conn->output.modes, &mode->wlr_mode.link);
+ return true;
+}
+
static void drm_connector_transform(struct wlr_output *output,
enum wl_output_transform transform) {
output->transform = transform;
--
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