From 95fc5bc2e3ab275d5627ba0b15d64d7f4f875fb5 Mon Sep 17 00:00:00 2001
From: "Maarten A." <maarten410@gmail.com>
Date: Wed, 12 Nov 2025 22:44:54 +0100
Subject: [PATCH] display mode patch for v0.7

---
 patches/display_mode/README.md          | 11 ++++
 patches/display_mode/display_mode.patch | 84 +++++++++++++++++++++++++
 2 files changed, 95 insertions(+)
 create mode 100644 patches/display_mode/README.md
 create mode 100644 patches/display_mode/display_mode.patch

diff --git a/patches/display_mode/README.md b/patches/display_mode/README.md
new file mode 100644
index 0000000..15bb22c
--- /dev/null
+++ b/patches/display_mode/README.md
@@ -0,0 +1,11 @@
+### Description
+Add the display mode to the monitor rules.
+
+The value for the mode can be from a program like [wlr-randr](https://gitlab.freedesktop.org/emersion/wlr-randr), with the first option being 0.
+
+### Download
+- [v0.7](/dwl/dwl-patches/raw/branch/main/patches/display_mode/display_mode.patch)
+
+### Authors - latest at top
+- [Toothpick](https://codeberg.org/Toothpick)
+
diff --git a/patches/display_mode/display_mode.patch b/patches/display_mode/display_mode.patch
new file mode 100644
index 0000000..84332be
--- /dev/null
+++ b/patches/display_mode/display_mode.patch
@@ -0,0 +1,84 @@
+From b8c5891e7643c6d786cd5c8cdd2fef8dfb9ced7b Mon Sep 17 00:00:00 2001
+From: "Maarten A." <maarten410@gmail.com>
+Date: Wed, 12 Nov 2025 22:01:19 +0100
+Subject: [PATCH] Add mode_index to display configuration
+
+---
+ config.def.h |  8 +++++---
+ dwl.c        | 14 +++++++++++++-
+ 2 files changed, 18 insertions(+), 4 deletions(-)
+
+diff --git a/config.def.h b/config.def.h
+index 22d2171..c942289 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -40,15 +40,17 @@ static const Layout layouts[] = {
+ /* (x=-1, y=-1) is reserved as an "autoconfigure" monitor position indicator
+  * WARNING: negative values other than (-1, -1) cause problems with Xwayland clients
+  * https://gitlab.freedesktop.org/xorg/xserver/-/issues/899
++ *
++ * mode: 0 based index of the display mode use -1 to use the preferred display mode
+ */
+ /* NOTE: ALWAYS add a fallback rule, even if you are completely sure it won't be used */
+ static const MonitorRule monrules[] = {
+-	/* name       mfact  nmaster scale layout       rotate/reflect                x    y */
++	/* name       mfact  nmaster scale layout       rotate/reflect                x    y   mode */
+ 	/* example of a HiDPI laptop monitor:
+-	{ "eDP-1",    0.5f,  1,      2,    &layouts[0], WL_OUTPUT_TRANSFORM_NORMAL,   -1,  -1 },
++	{ "eDP-1",    0.5f,  1,      2,    &layouts[0], WL_OUTPUT_TRANSFORM_NORMAL,   -1,  -1, -1},
+ 	*/
+ 	/* defaults */
+-	{ NULL,       0.55f, 1,      1,    &layouts[0], WL_OUTPUT_TRANSFORM_NORMAL,   -1,  -1 },
++	{ NULL,       0.55f, 1,      1,    &layouts[0], WL_OUTPUT_TRANSFORM_NORMAL,   -1,  -1, -1},
+ };
+ 
+ /* keyboard */
+diff --git a/dwl.c b/dwl.c
+index a2711f6..1f34b94 100644
+--- a/dwl.c
++++ b/dwl.c
+@@ -218,6 +218,7 @@ typedef struct {
+ 	const Layout *lt;
+ 	enum wl_output_transform rr;
+ 	int x, y;
++	int mode_index;
+ } MonitorRule;
+ 
+ typedef struct {
+@@ -978,6 +979,7 @@ createmon(struct wl_listener *listener, void *data)
+ 	const MonitorRule *r;
+ 	size_t i;
+ 	struct wlr_output_state state;
++	struct wlr_output_mode *mode = wlr_output_preferred_mode(wlr_output);
+ 	Monitor *m;
+ 
+ 	if (!wlr_output_init_render(wlr_output, alloc, drw))
+@@ -1003,6 +1005,16 @@ createmon(struct wl_listener *listener, void *data)
+ 			strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, LENGTH(m->ltsymbol));
+ 			wlr_output_state_set_scale(&state, r->scale);
+ 			wlr_output_state_set_transform(&state, r->rr);
++			if (r->mode_index >= 0 && !wl_list_empty(&wlr_output->modes)) {
++				int count = 0;
++				struct wlr_output_mode *mode_iter;
++				wl_list_for_each(mode_iter, &wlr_output->modes, link) {
++					if (count == r->mode_index) {
++						mode = mode_iter;
++						break;
++					} count++;
++				}
++			}
+ 			break;
+ 		}
+ 	}
+@@ -1011,7 +1023,7 @@ createmon(struct wl_listener *listener, void *data)
+ 	 * monitor supports only a specific set of modes. We just pick the
+ 	 * monitor's preferred mode; a more sophisticated compositor would let
+ 	 * the user configure it. */
+-	wlr_output_state_set_mode(&state, wlr_output_preferred_mode(wlr_output));
++	wlr_output_state_set_mode(&state, mode);
+ 
+ 	/* Set up event listeners */
+ 	LISTEN(&wlr_output->events.frame, &m->frame, rendermon);
+-- 
+2.47.3
+