From 5cfcb0a49008a975b458b3205cd69e3bc290b7a8 Mon Sep 17 00:00:00 2001
From: Andri Yngvason <andri@yngvason.is>
Date: Fri, 12 Jan 2024 16:25:47 +0000
Subject: [PATCH] output: Add color format to output state

---
 include/wlr/types/wlr_output.h | 25 +++++++++++++++++++++++++
 types/output/output.c          |  5 +++++
 types/output/state.c           |  5 +++++
 3 files changed, 35 insertions(+)

diff --git a/include/wlr/types/wlr_output.h b/include/wlr/types/wlr_output.h
index 55182ae53..a9088fb3c 100644
--- a/include/wlr/types/wlr_output.h
+++ b/include/wlr/types/wlr_output.h
@@ -26,6 +26,14 @@ enum wlr_output_mode_aspect_ratio {
 	WLR_OUTPUT_MODE_ASPECT_RATIO_256_135,
 };
 
+enum wlr_output_color_format {
+	WLR_OUTPUT_COLOR_FORMAT_UNSPEC,
+	WLR_OUTPUT_COLOR_FORMAT_RGB,
+	WLR_OUTPUT_COLOR_FORMAT_YCBCR444,
+	WLR_OUTPUT_COLOR_FORMAT_YCBCR422,
+	WLR_OUTPUT_COLOR_FORMAT_YCBCR420,
+};
+
 struct wlr_output_mode {
 	int32_t width, height;
 	int32_t refresh; // mHz
@@ -108,6 +116,8 @@ struct wlr_output_state {
 
 	struct wlr_output_layer_state *layers;
 	size_t layers_len;
+
+	enum wlr_output_color_format color_format;
 };
 
 struct wlr_output_impl;
@@ -423,6 +433,14 @@ void wlr_output_set_damage(struct wlr_output *output,
  */
 void wlr_output_set_layers(struct wlr_output *output,
 	struct wlr_output_layer_state *layers, size_t layers_len);
+
+/**
+ * Set the output color format. This is the color encoding the signal that
+ * goes out to the wire.
+ */
+void wlr_output_set_color_format(struct wlr_output *output,
+		enum wlr_output_color_format value);
+
 /**
  * Test whether the pending output state would be accepted by the backend. If
  * this function returns true, wlr_output_commit() can only fail due to a
@@ -676,6 +694,13 @@ void wlr_output_state_set_damage(struct wlr_output_state *state,
 void wlr_output_state_set_layers(struct wlr_output_state *state,
 	struct wlr_output_layer_state *layers, size_t layers_len);
 
+/**
+ * Set the output color format. This is the color encoding the signal that
+ * goes out to the wire.
+ */
+void wlr_output_state_set_color_format(struct wlr_output_state *state,
+		enum wlr_output_color_format value);
+
 /**
  * Copies the output state from src to dst. It is safe to then
  * wlr_output_state_finish() src and have dst still be valid.
diff --git a/types/output/output.c b/types/output/output.c
index a97eae773..15218dc1b 100644
--- a/types/output/output.c
+++ b/types/output/output.c
@@ -544,6 +544,11 @@ void wlr_output_set_layers(struct wlr_output *output,
 	wlr_output_state_set_layers(&output->pending, layers, layers_len);
 }
 
+void wlr_output_set_color_format(struct wlr_output *output,
+		enum wlr_output_color_format value) {
+	wlr_output_state_set_color_format(&output->pending, value);
+}
+
 static void output_state_clear_gamma_lut(struct wlr_output_state *state) {
 	free(state->gamma_lut);
 	state->gamma_lut = NULL;
diff --git a/types/output/state.c b/types/output/state.c
index 0909b3e8a..8e843f40f 100644
--- a/types/output/state.c
+++ b/types/output/state.c
@@ -114,6 +114,11 @@ void wlr_output_state_set_layers(struct wlr_output_state *state,
 	state->layers_len = layers_len;
 }
 
+void wlr_output_state_set_color_format(struct wlr_output_state *state,
+		enum wlr_output_color_format value) {
+	state->color_format = value;
+}
+
 bool wlr_output_state_copy(struct wlr_output_state *dst,
 		const struct wlr_output_state *src) {
 	struct wlr_output_state copy = *src;