From 82b4bc3f5f524edd90c7c9989084cbfdb02d90e8 Mon Sep 17 00:00:00 2001
From: Manuel Stoeckl <code@mstoeckl.com>
Date: Sun, 14 Apr 2024 12:20:08 -0400
Subject: [PATCH] renderer: add field to indicate color transform support

---
 include/wlr/render/wlr_renderer.h | 7 +++++++
 render/gles2/renderer.c           | 1 +
 render/pixman/renderer.c          | 1 +
 render/vulkan/renderer.c          | 1 +
 4 files changed, 10 insertions(+)

diff --git a/include/wlr/render/wlr_renderer.h b/include/wlr/render/wlr_renderer.h
index 62da0761..bb9a55fc 100644
--- a/include/wlr/render/wlr_renderer.h
+++ b/include/wlr/render/wlr_renderer.h
@@ -40,6 +40,13 @@ struct wlr_renderer {
 		struct wl_signal lost;
 	} events;
 
+	struct {
+		/**
+		 * Does the renderer support color transforms on its output?
+		 */
+		bool output_color_transform;
+	} features;
+
 	// private state
 
 	const struct wlr_renderer_impl *impl;
diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c
index 7bb9cf34..4694b2a8 100644
--- a/render/gles2/renderer.c
+++ b/render/gles2/renderer.c
@@ -526,6 +526,7 @@ struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_egl *egl) {
 		return NULL;
 	}
 	wlr_renderer_init(&renderer->wlr_renderer, &renderer_impl, WLR_BUFFER_CAP_DMABUF);
+	renderer->wlr_renderer.features.output_color_transform = false;
 
 	wl_list_init(&renderer->buffers);
 	wl_list_init(&renderer->textures);
diff --git a/render/pixman/renderer.c b/render/pixman/renderer.c
index 552c9bf9..a5b83e38 100644
--- a/render/pixman/renderer.c
+++ b/render/pixman/renderer.c
@@ -327,6 +327,7 @@ struct wlr_renderer *wlr_pixman_renderer_create(void) {
 
 	wlr_log(WLR_INFO, "Creating pixman renderer");
 	wlr_renderer_init(&renderer->wlr_renderer, &renderer_impl, WLR_BUFFER_CAP_DATA_PTR);
+	renderer->wlr_renderer.features.output_color_transform = false;
 	wl_list_init(&renderer->buffers);
 	wl_list_init(&renderer->textures);
 
diff --git a/render/vulkan/renderer.c b/render/vulkan/renderer.c
index c6c249b2..3c239cb1 100644
--- a/render/vulkan/renderer.c
+++ b/render/vulkan/renderer.c
@@ -2403,6 +2403,7 @@ struct wlr_renderer *vulkan_renderer_create_for_device(struct wlr_vk_device *dev
 
 	renderer->dev = dev;
 	wlr_renderer_init(&renderer->wlr_renderer, &renderer_impl, WLR_BUFFER_CAP_DMABUF);
+	renderer->wlr_renderer.features.output_color_transform = true;
 	wl_list_init(&renderer->stage.buffers);
 	wl_list_init(&renderer->foreign_textures);
 	wl_list_init(&renderer->textures);