Merge pull request #2 from ascent12/master

DRM backend + Session interface + EGL

12 files changed, 260 insertions, 25 deletions

diff --git a/include/backend.h b/include/backend.h
new file mode 100644
index 00000000..d42c6f17
--- /dev/null
+++ b/include/backend.h
@@ -0,0 +1,17 @@
+#ifndef _WLR_BACKEND_INTERNAL_H
+#define _WLR_BACKEND_INTERNAL_H
+
+#include <stdbool.h>
+#include <wlr/backend.h>
+
+struct wlr_backend_state;
+
+struct wlr_backend_impl {
+	bool (*init)(struct wlr_backend_state *state);
+	void (*destroy)(struct wlr_backend_state *state);
+};
+
+struct wlr_backend *wlr_backend_create(const struct wlr_backend_impl *impl,
+		struct wlr_backend_state *state);
+
+#endif
diff --git a/include/backend/drm/backend.h b/include/backend/drm/backend.h
new file mode 100644
index 00000000..0c725ccb
--- /dev/null
+++ b/include/backend/drm/backend.h
@@ -0,0 +1,34 @@
+#ifndef DRM_BACKEND_H
+#define DRM_BACKEND_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <EGL/egl.h>
+#include <gbm.h>
+#include <libudev.h>
+#include <wayland-server.h>
+
+#include <wlr/session.h>
+#include <wlr/common/list.h>
+#include <wlr/backend/drm.h>
+
+#include "backend.h"
+#include "udev.h"
+#include "event.h"
+#include "drm.h"
+
+struct wlr_backend_state {
+	int fd;
+
+	struct wlr_backend *backend;
+	struct wl_event_source *drm_event;
+
+	uint32_t taken_crtcs;
+	list_t *outputs;
+
+	struct wlr_drm_renderer renderer;
+	struct wlr_session *session;
+	struct wlr_udev udev;
+};
+
+#endif
diff --git a/include/backend/drm/drm.h b/include/backend/drm/drm.h
new file mode 100644
index 00000000..4b42aa68
--- /dev/null
+++ b/include/backend/drm/drm.h
@@ -0,0 +1,58 @@
+#ifndef DRM_H
+#define DRM_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <xf86drmMode.h>
+#include <EGL/egl.h>
+#include <gbm.h>
+
+#include "backend/egl.h"
+#include "backend.h"
+
+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);
+
+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;
+	char name[16];
+
+	uint32_t width;
+	uint32_t height;
+
+	uint32_t crtc;
+	drmModeCrtc *old_crtc;
+
+	struct wlr_drm_renderer *renderer;
+	struct gbm_surface *gbm;
+	EGLSurface *egl;
+
+	bool pageflip_pending;
+	bool cleanup;
+};
+
+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);
+
+#endif
diff --git a/include/backend/drm/udev.h b/include/backend/drm/udev.h
new file mode 100644
index 00000000..99c2c403
--- /dev/null
+++ b/include/backend/drm/udev.h
@@ -0,0 +1,24 @@
+#ifndef UDEV_H
+#define UDEV_H
+
+#include <libudev.h>
+
+#include <wlr/session.h>
+#include <wayland-server.h>
+
+struct wlr_udev {
+	struct udev *udev;
+	struct udev_monitor *mon;
+	char *drm_path;
+
+	struct wl_event_source *event;
+};
+
+struct wlr_drm_backend;
+bool wlr_udev_init(struct wl_display *display, struct wlr_udev *udev);
+void wlr_udev_free(struct wlr_udev *udev);
+int wlr_udev_find_gpu(struct wlr_udev *udev, struct wlr_session *session);
+
+void wlr_udev_event(struct wlr_drm_backend *backend);
+
+#endif
diff --git a/include/backend/egl.h b/include/backend/egl.h
new file mode 100644
index 00000000..8cef36b7
--- /dev/null
+++ b/include/backend/egl.h
@@ -0,0 +1,17 @@
+#ifndef WLR_BACKEND_EGL_H
+#define WLR_BACKEND_EGL_H
+
+#include <EGL/egl.h>
+#include <stdbool.h>
+
+struct wlr_egl {
+	EGLDisplay display;
+	EGLConfig config;
+	EGLContext context;
+};
+
+bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *display);
+void wlr_egl_free(struct wlr_egl *egl);
+EGLSurface wlr_egl_create_surface(struct wlr_egl *egl, void *window);
+
+#endif
diff --git a/include/session/interface.h b/include/session/interface.h
new file mode 100644
index 00000000..a815718f
--- /dev/null
+++ b/include/session/interface.h
@@ -0,0 +1,21 @@
+#ifndef WLR_SESSION_INTERFACE_H
+#define WLR_SESSION_INTERFACE_H
+
+struct wlr_session;
+
+struct session_interface {
+	struct wlr_session *(*start)(void);
+	void (*finish)(struct wlr_session *session);
+	int (*open)(struct wlr_session *restrict session,
+		const char *restrict path);
+	void (*close)(struct wlr_session *session, int fd);
+};
+
+struct wlr_session {
+	struct session_interface iface;
+};
+
+extern const struct session_interface session_logind_iface;
+extern const struct session_interface session_direct_iface;
+
+#endif
diff --git a/include/wayland.h b/include/wayland.h
new file mode 100644
index 00000000..68817936
--- /dev/null
+++ b/include/wayland.h
@@ -0,0 +1,18 @@
+#ifndef _WLR_WAYLAND_INTERNAL_H
+#define _WLR_WAYLAND_INTERNAL_H
+
+#include <wayland-server.h>
+#include <wlr/wayland.h>
+#include <stdbool.h>
+
+struct wlr_output_impl {
+	bool (*set_mode)(struct wlr_output_state *state, struct wlr_output_mode *mode);
+	void (*destroy)(struct wlr_output_state *state);
+};
+
+struct wlr_output *wlr_output_create(struct wlr_output_impl *impl,
+		struct wlr_output_state *state);
+
+void wlr_output_free(struct wlr_output *output);
+
+#endif
diff --git a/include/wlr/backend.h b/include/wlr/backend.h
index 527efa05..b424c29f 100644
--- a/include/wlr/backend.h
+++ b/include/wlr/backend.h
@@ -1,7 +1,29 @@
 #ifndef _WLR_BACKEND_H
 #define _WLR_BACKEND_H
 
-struct wlr_backend *wlr_backend_init();
-void wlr_backend_free(struct wlr_backend *backend);
+#include <wayland-server.h>
+
+struct wlr_backend_impl;
+struct wlr_backend_state;
+
+struct wlr_backend {
+	const struct wlr_backend_impl *impl;
+	struct wlr_backend_state *state;
+
+	struct {
+		struct wl_signal output_add;
+		struct wl_signal output_remove;
+		struct wl_signal keyboard_add;
+		struct wl_signal keyboard_remove;
+		struct wl_signal pointer_add;
+		struct wl_signal pointer_remove;
+		struct wl_signal touch_add;
+		struct wl_signal touch_remove;
+	} events;
+};
+
+struct wlr_backend *wlr_backend_autocreate();
+bool wlr_backend_init(struct wlr_backend *backend);
+void wlr_backend_destroy(struct wlr_backend *backend);
 
 #endif
diff --git a/include/wlr/backend/drm.h b/include/wlr/backend/drm.h
new file mode 100644
index 00000000..2d9bf879
--- /dev/null
+++ b/include/wlr/backend/drm.h
@@ -0,0 +1,16 @@
+#ifndef WLR_BACKEND_DRM_H
+#define WLR_BACKEND_DRM_H
+
+#include <wayland-server.h>
+#include <wlr/session.h>
+#include <wlr/backend.h>
+#include <xf86drmMode.h> // drmModeModeInfo
+#include <wlr/wayland.h>
+
+struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
+	struct wlr_session *session);
+
+void wlr_drm_output_begin(struct wlr_output *out);
+void wlr_drm_output_end(struct wlr_output *out);
+
+#endif
diff --git a/include/wlr/common/log.h b/include/wlr/common/log.h
index 5b4d5a53..079f989a 100644
--- a/include/wlr/common/log.h
+++ b/include/wlr/common/log.h
@@ -1,6 +1,7 @@
 #ifndef _WLR_COMMON_LOG_H
 #define _WLR_COMMON_LOG_H
 #include <stdbool.h>
+#include <stdarg.h>
 
 typedef enum {
 	L_SILENT = 0,
diff --git a/include/wlr/session.h b/include/wlr/session.h
new file mode 100644
index 00000000..cf04f1da
--- /dev/null
+++ b/include/wlr/session.h
@@ -0,0 +1,12 @@
+#ifndef WLR_SESSION_H
+#define WLR_SESSION_H
+
+struct wlr_session;
+
+struct wlr_session *wlr_session_start(void);
+void wlr_session_finish(struct wlr_session *session);
+int wlr_session_open_file(struct wlr_session *restrict session,
+	const char *restrict path);
+void wlr_session_close_file(struct wlr_session *session, int fd);
+
+#endif
diff --git a/include/wlr/wayland.h b/include/wlr/wayland.h
index bbbd2457..158acc33 100644
--- a/include/wlr/wayland.h
+++ b/include/wlr/wayland.h
@@ -3,26 +3,26 @@
 
 #include <wayland-server.h>
 #include <wlr/common/list.h>
+#include <stdbool.h>
 
-struct wlr_wl_seat {
-	struct wl_seat *wl_seat;
-	uint32_t capabilities;
-	char *name;
-	list_t *keyboards;
-	list_t *pointers;
-};
-
-void wlr_wl_seat_free(struct wlr_wl_seat *seat);
+struct wlr_output_mode_state;
 
-struct wlr_wl_output_mode {
+struct wlr_output_mode {
+	struct wlr_output_mode_state *state;
 	uint32_t flags; // enum wl_output_mode
 	int32_t width, height;
 	int32_t refresh; // mHz
 };
 
-struct wlr_wl_output {
-	struct wl_output *wl_output;
+struct wlr_output_impl;
+struct wlr_output_state;
+
+struct wlr_output {
+	const struct wlr_output_impl *impl;
+	struct wlr_output_state *state;
+
 	uint32_t flags;
+	char *name;
 	char *make;
 	char *model;
 	uint32_t scale;
@@ -30,20 +30,15 @@ struct wlr_wl_output {
 	int32_t phys_width, phys_height; // mm
 	int32_t subpixel; // enum wl_output_subpixel
 	int32_t transform; // enum wl_output_transform
-	list_t *modes;
-	struct wlr_wl_output_mode *current_mode;
-};
 
-void wlr_wl_output_free(struct wlr_wl_output *output);
+	list_t *modes;
+	struct wlr_output_mode *current_mode;
 
-struct wlr_wl_keyboard {
-	struct wl_keyboard *wl_keyboard;
+	struct {
+		struct wl_signal frame;
+	} events;
 };
 
-struct wlr_wl_pointer {
-	struct wl_pointer *wl_pointer;
-	struct wl_surface *current_surface;
-	wl_fixed_t x, y;
-};
+bool wlr_output_set_mode(struct wlr_output *output, struct wlr_output_mode *mode);
 
 #endif