1 files changed, 136 insertions, 0 deletions
diff --git a/backend/drm/drm.h b/backend/drm/drm.h
new file mode 100644
index 00000000..c5d32254
--- /dev/null
+++ b/backend/drm/drm.h
@@ -0,0 +1,136 @@
+#ifndef DRM_BACKEND_H
+#define DRM_BACKEND_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <wayland-server.h>
+#include <xf86drmMode.h>
+#include <EGL/egl.h>
+#include <libudev.h>
+#include <gbm.h>
+
+#include <wlr/backend/session.h>
+#include <wlr/backend/drm.h>
+#include <wlr/util/list.h>
+
+#include <backend/egl.h>
+#include <backend/udev.h>
+#include "drm-properties.h"
+
+struct wlr_drm_plane {
+	uint32_t type;
+	uint32_t id;
+	uint32_t fb_id;
+
+	uint32_t possible_crtcs;
+
+	int32_t x, y;
+	uint32_t width, height;
+
+	struct gbm_surface *gbm;
+	EGLSurface egl;
+
+	struct gbm_bo *front;
+	struct gbm_bo *back;
+
+	union wlr_drm_plane_props props;
+};
+
+struct wlr_drm_crtc {
+	uint32_t id;
+	struct wlr_drm_plane *primary;
+	struct wlr_drm_plane *overlay;
+	struct wlr_drm_plane *cursor;
+	
+	union wlr_drm_crtc_props props;
+};
+
+struct wlr_drm_renderer {
+	int fd;
+	struct gbm_device *gbm;
+	struct wlr_egl egl;
+};
+
+bool wlr_drm_renderer_init(struct wlr_drm_renderer *renderer, int fd);
+void wlr_drm_renderer_free(struct wlr_drm_renderer *renderer);
+
+struct wlr_backend_state {
+	int fd;
+	dev_t dev;
+
+	size_t num_crtcs;
+	struct wlr_drm_crtc *crtcs;
+	size_t num_planes;
+	struct wlr_drm_plane *planes;
+
+	size_t num_overlay_planes;
+	struct wlr_drm_plane *overlay_planes;
+	size_t num_primary_planes;
+	struct wlr_drm_plane *primary_planes;
+	size_t num_cursor_planes;
+	struct wlr_drm_plane *cursor_planes;
+
+	struct wlr_backend *backend;
+	struct wl_display *display;
+	struct wl_event_source *drm_event;
+
+	struct wl_listener session_signal;
+	struct wl_listener drm_invalidated;
+
+	uint32_t taken_crtcs;
+	list_t *outputs;
+
+	struct wlr_drm_renderer renderer;
+	struct wlr_session *session;
+	struct wlr_udev *udev;
+};
+
+enum wlr_drm_output_state {
+	DRM_OUTPUT_DISCONNECTED,
+	DRM_OUTPUT_NEEDS_MODESET,
+	DRM_OUTPUT_CONNECTED,
+};
+
+struct wlr_output_mode_state {
+	struct wlr_wl_output_mode *wlr_mode;
+	drmModeModeInfo mode;
+};
+
+struct wlr_output_state {
+	struct wlr_output *wlr_output;
+	enum wlr_drm_output_state state;
+	uint32_t connector;
+
+	struct {
+		uint32_t dpms;
+	} props;
+
+	uint32_t width;
+	uint32_t height;
+
+	uint32_t crtc;
+	drmModeCrtc *old_crtc;
+
+	struct wlr_drm_renderer *renderer;
+	EGLSurface *egl;
+	struct gbm_surface *gbm;
+	struct gbm_bo *bo[2];
+	struct gbm_bo *cursor_bo[2];
+	int current_cursor;
+	uint32_t cursor_width, cursor_height;
+
+	bool pageflip_pending;
+	bool cleanup;
+};
+
+bool wlr_drm_init_resources(struct wlr_backend_state *drm);
+void wlr_drm_output_cleanup(struct wlr_output_state *output, bool restore);
+
+void wlr_drm_scan_connectors(struct wlr_backend_state *state);
+int wlr_drm_event(int fd, uint32_t mask, void *data);
+
+void wlr_drm_output_start_renderer(struct wlr_output_state *output);
+void wlr_drm_output_pause_renderer(struct wlr_output_state *output);
+
+#endif