5 files changed, 56 insertions, 3 deletions
diff --git a/include/backend/headless.h b/include/backend/headless.h
new file mode 100644
index 00000000..91ff37dd
--- /dev/null
+++ b/include/backend/headless.h
@@ -0,0 +1,35 @@
+#ifndef BACKEND_HEADLESS_H
+#define BACKEND_HEADLESS_H
+
+#include <wlr/backend/interface.h>
+#include <wlr/backend/headless.h>
+#include <wlr/types/wlr_output.h>
+
+struct wlr_headless_backend {
+	struct wlr_backend backend;
+	struct wlr_egl egl;
+	struct wl_display *display;
+	struct wl_list outputs;
+	struct wl_list input_devices;
+	struct wl_listener display_destroy;
+	bool started;
+};
+
+struct wlr_headless_output {
+	struct wlr_output wlr_output;
+
+	struct wlr_headless_backend *backend;
+	struct wl_list link;
+
+	void *egl_surface;
+	struct wl_event_source *frame_timer;
+	int frame_delay; // ms
+};
+
+struct wlr_headless_input_device {
+	struct wlr_input_device wlr_input_device;
+
+	struct wlr_headless_backend *backend;
+};
+
+#endif
diff --git a/include/wlr/backend/headless.h b/include/wlr/backend/headless.h
new file mode 100644
index 00000000..68ad84da
--- /dev/null
+++ b/include/wlr/backend/headless.h
@@ -0,0 +1,14 @@
+#ifndef WLR_BACKEND_HEADLESS_H
+#define WLR_BACKEND_HEADLESS_H
+
+#include <wlr/backend.h>
+#include <wlr/types/wlr_input_device.h>
+
+struct wlr_backend *wlr_headless_backend_create(struct wl_display *display);
+struct wlr_output *wlr_headless_add_output(struct wlr_backend *backend,
+	unsigned int width, unsigned int height);
+struct wlr_input_device *wlr_headless_add_input_device(
+	struct wlr_backend *backend, enum wlr_input_device_type type);
+bool wlr_backend_is_headless(struct wlr_backend *backend);
+
+#endif
diff --git a/include/wlr/interfaces/wlr_output.h b/include/wlr/interfaces/wlr_output.h
index 1cfe7568..6d71f9b6 100644
--- a/include/wlr/interfaces/wlr_output.h
+++ b/include/wlr/interfaces/wlr_output.h
@@ -28,8 +28,10 @@ struct wlr_output_impl {
 void wlr_output_init(struct wlr_output *output, struct wlr_backend *backend,
 	const struct wlr_output_impl *impl);
 void wlr_output_free(struct wlr_output *output);
-void wlr_output_update_size(struct wlr_output *output, int32_t width,
-	int32_t height);
+void wlr_output_update_mode(struct wlr_output *output,
+	struct wlr_output_mode *mode);
+void wlr_output_update_custom_mode(struct wlr_output *output, int32_t width,
+	int32_t height, int32_t refresh);
 struct wl_global *wlr_output_create_global(struct wlr_output *wlr_output,
 	struct wl_display *display);
 void wlr_output_destroy_global(struct wlr_output *wlr_output);
diff --git a/include/wlr/render/egl.h b/include/wlr/render/egl.h
index 67a81f37..bdb8d286 100644
--- a/include/wlr/render/egl.h
+++ b/include/wlr/render/egl.h
@@ -22,7 +22,8 @@ struct wlr_egl {
  *  Initializes an egl context for the given platform and remote display.
  * Will attempt to load all possibly required api functions.
  */
-bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, EGLint visual_id, void *display);
+bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *remote_display,
+	EGLint *config_attribs, EGLint visual_id);
 
 /**
  * Frees all related egl resources, makes the context not-current and
diff --git a/include/wlr/types/wlr_output.h b/include/wlr/types/wlr_output.h
index 037fa515..a974a154 100644
--- a/include/wlr/types/wlr_output.h
+++ b/include/wlr/types/wlr_output.h
@@ -47,6 +47,7 @@ struct wlr_output {
 	char serial[16];
 	float scale;
 	int32_t width, height;
+	int32_t refresh; // mHz
 	int32_t phys_width, phys_height; // mm
 	enum wl_output_subpixel subpixel;
 	enum wl_output_transform transform;