Flesh out wayland backend registry

backend/CMakeLists.txt

@@ -6,6 +6,8 @@ include_directories(
 add_library(wlr-backend
     wayland/backend.c
     wayland/registry.c
+    wayland/wl_seat.c
+    wayland/wl_output.c
 )
 
 target_link_libraries(wlr-backend

backend/wayland/backend.c

@@ -36,8 +36,7 @@ struct wlr_wl_backend *wlr_wl_backend_init(
 		wlr_log(L_ERROR, "Could not connect to remote display");
 		goto error;
 	}
-	if (!(backend->remote_registry = wl_display_get_registry(
-			backend->remote_display))) {
+	if (!(backend->registry = wl_display_get_registry(backend->remote_display))) {
 		wlr_log(L_ERROR, "Could not obtain reference to remote registry");
 		goto error;
 	}

backend/wayland/registry.c

@@ -1,18 +1,73 @@
-#include <stdio.h>
 #include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
 #include <wayland-client.h>
 #include "backend/wayland.h"
 #include "common/log.h"
 
+static void registry_wl_seat(struct wlr_wl_backend *backend,
+		struct wl_seat *wl_seat, struct wl_registry *registry, uint32_t version) {
+	struct wlr_wl_seat *seat;
+	if (!(seat = calloc(sizeof(struct wlr_wl_seat), 1))) {
+		wlr_log(L_ERROR, "Failed to allocate wlr_wl_seat");
+		goto error;
+	}
+	if (!(seat->keyboards = list_create())) {
+		wlr_log(L_ERROR, "Failed to allocate wlr_wl_seat");
+		goto error;
+	}
+	if (!(seat->pointers = list_create())) {
+		wlr_log(L_ERROR, "Failed to allocate wlr_wl_pointer");
+		goto error;
+	}
+	seat->wl_seat = wl_seat;
+	wl_seat_add_listener(wl_seat, &seat_listener, seat);
+error:
+	//wlr_wl_seat_free(seat); TODO
+	return;
+}
+
+static void registry_wl_output(struct wlr_wl_backend *backend,
+		struct wl_output *wl_output, struct wl_registry *registry, uint32_t version) {
+	struct wlr_wl_output *output;
+	if (!(output = calloc(sizeof(struct wlr_wl_output), 1))) {
+		wlr_log(L_ERROR, "Failed to allocate wlr_wl_output");
+		return;
+	}
+	output->wl_output = wl_output;
+	output->scale = 1;
+	list_add(backend->outputs, output);
+	wl_output_set_user_data(wl_output, backend);
+	wl_output_add_listener(wl_output, &output_listener, output);
+}
+
 static void registry_global(void *data, struct wl_registry *registry,
 		uint32_t name, const char *interface, uint32_t version) {
-	//struct wlr_wl_backend *backend = data;
+	struct wlr_wl_backend *backend = data;
 	wlr_log(L_DEBUG, "Remote wayland global: %s v%d", interface, version);
-	// TODO
+
+	if (strcmp(interface, wl_compositor_interface.name) == 0) {
+		backend->compositor = wl_registry_bind(registry, name,
+				&wl_compositor_interface, version);
+	} else if (strcmp(interface, wl_shell_interface.name) == 0) {
+		backend->shell = wl_registry_bind(registry, name,
+				&wl_shell_interface, version);
+	} else if (strcmp(interface, wl_shm_interface.name) == 0) {
+		backend->shm = wl_registry_bind(registry, name,
+				&wl_shm_interface, version);
+	} else if (strcmp(interface, wl_seat_interface.name) == 0) {
+		struct wl_seat *wl_seat = wl_registry_bind(registry, name,
+				&wl_seat_interface, version);
+		registry_wl_seat(backend, wl_seat, registry, version);
+	} else if (strcmp(interface, wl_output_interface.name) == 0) {
+		struct wl_output *wl_output = wl_registry_bind(registry, name,
+				&wl_output_interface, version);
+		registry_wl_output(backend, wl_output, registry, version);
+	}
 }
 
-static void registry_global_remove(void *data,
-		struct wl_registry *registry, uint32_t name) {
+static void registry_global_remove(void *data, struct wl_registry *registry,
+		uint32_t name) {
 	// TODO
 }
 
@@ -22,8 +77,8 @@ static const struct wl_registry_listener registry_listener = {
 };
 
 void wlr_wlb_registry_poll(struct wlr_wl_backend *backend) {
-	wl_registry_add_listener(backend->remote_registry,
-			&registry_listener, backend->remote_registry);
+	wl_registry_add_listener(backend->registry,
+			&registry_listener, backend->registry);
 	wl_display_dispatch(backend->remote_display);
 	wl_display_roundtrip(backend->remote_display);
 }

backend/wayland/wl_output.c

@@ -0,0 +1,49 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <wayland-client.h>
+#include "backend/wayland.h"
+
+static void wl_output_handle_mode(void *data, struct wl_output *wl_output,
+		     uint32_t flags, int32_t width, int32_t height, int32_t refresh) {
+	struct wlr_wl_output *output = data;
+	assert(output->wl_output == wl_output);
+	struct wlr_wl_output_mode *mode = calloc(sizeof(struct wlr_wl_output_mode), 1);
+	mode->flags = flags;
+	mode->width = width;
+	mode->height = height;
+	mode->refresh = refresh;
+	list_add(output->modes, mode);
+}
+
+static void wl_output_handle_geometry(void *data, struct wl_output *wl_output,
+			 int32_t x, int32_t y, int32_t physical_width, int32_t physical_height,
+			 int32_t subpixel, const char *make, const char *model, int32_t transform) {
+	struct wlr_wl_output *output = data;
+	assert(output->wl_output == wl_output);
+	output->x = x;
+	output->y = y;
+	output->phys_width = physical_width;
+	output->phys_height = physical_height;
+	output->subpixel = subpixel;
+	output->make = make;
+	output->model = model;
+	output->transform = transform;
+}
+
+static void wl_output_handle_scale(void *data, struct wl_output *wl_output, int32_t factor) {
+	struct wlr_wl_output *output = data;
+	assert(output->wl_output == wl_output);
+	output->scale = factor;
+}
+
+static void wl_output_handle_done(void *data, struct wl_output *wl_output) {
+	// TODO: notify of changes? Probably not necessary for this backend
+}
+
+const struct wl_output_listener output_listener = {
+	.mode = wl_output_handle_mode,
+	.geometry = wl_output_handle_geometry,
+	.scale = wl_output_handle_scale,
+	.done = wl_output_handle_done
+};

backend/wayland/wl_seat.c

@@ -0,0 +1,19 @@
+#include <stdint.h>
+#include <wayland-client.h>
+#include "backend/wayland.h"
+
+static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
+		enum wl_seat_capability caps) {
+	//struct wlr_wl_seat *seat = data;
+	// TODO
+}
+
+static void seat_handle_name(void *data, struct wl_seat *wl_seat, const char *name) {
+	struct wlr_wl_seat *seat = data;
+	seat->name = name;
+}
+
+const struct wl_seat_listener seat_listener = {
+	.capabilities = seat_handle_capabilities,
+	.name = seat_handle_name,
+};

include/backend/wayland.h

@@ -11,8 +11,8 @@ struct wlr_wl_backend {
 	struct wl_display *local_display;
 	/* remote state */
 	struct wl_display *remote_display;
-	struct wl_registry *remote_registry;
-	struct wl_compositor *remote_compositor;
+	struct wl_registry *registry;
+	struct wl_compositor *compositor;
 	struct wl_shell *shell;
 	struct wl_shm *shm;
 	struct wlr_wl_seat *seat;
@@ -21,4 +21,7 @@ struct wlr_wl_backend {
 
 void wlr_wlb_registry_poll(struct wlr_wl_backend *backend);
 
+extern const struct wl_seat_listener seat_listener;
+extern const struct wl_output_listener output_listener;
+
 #endif

include/wlr/wayland.h

@@ -8,15 +8,28 @@ struct wlr_wl_seat {
 	struct wl_seat *wl_seat;
 	uint32_t capabilities;
 	const char *name;
-	list_t *outputs;
+	list_t *keyboards;
 	list_t *pointers;
 };
 
+struct wlr_wl_output_mode {
+	uint32_t flags; // enum wl_output_mode
+	int32_t width, height;
+	int32_t refresh; // mHz
+};
+
 struct wlr_wl_output {
 	struct wl_output *wl_output;
 	uint32_t flags;
-	uint32_t width, height;
+	const char *make;
+	const char *model;
 	uint32_t scale;
+	int32_t x, y;
+	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;
 };
 
 struct wlr_wl_keyboard {