Rename wayland-system-compositor back to just compositor

1 files changed, 1531 insertions, 0 deletions

diff --git a/compositor.c b/compositor.c
new file mode 100644
index 0000000..8242b1a
--- /dev/null
+++ b/compositor.c
@@ -0,0 +1,1531 @@
+/*
+ * Copyright © 2008 Kristian Høgsberg
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <cairo.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <math.h>
+#include <linux/input.h>
+#include <linux/vt.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+#include <time.h>
+
+#define LIBUDEV_I_KNOW_THE_API_IS_SUBJECT_TO_CHANGE
+#include <libudev.h>
+
+#define GL_GLEXT_PROTOTYPES
+#define EGL_EGLEXT_PROTOTYPES
+#include <GL/gl.h>
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#include "wayland.h"
+#include "wayland-protocol.h"
+#include "cairo-util.h"
+#include "compositor.h"
+
+#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])
+
+struct wlsc_matrix {
+	GLdouble d[16];
+};
+
+struct wl_visual {
+	struct wl_object base;
+};
+
+struct wlsc_surface;
+
+struct wlsc_listener {
+	struct wl_list link;
+	void (*func)(struct wlsc_listener *listener,
+		     struct wlsc_surface *surface);
+};
+
+struct wlsc_output {
+	struct wl_object base;
+	struct wl_list link;
+	struct wlsc_compositor *compositor;
+	struct wlsc_surface *background;
+	int32_t x, y, width, height;
+
+	drmModeModeInfo mode;
+	uint32_t crtc_id;
+	uint32_t connector_id;
+
+	GLuint rbo[2];
+	uint32_t fb_id[2];
+	EGLImageKHR image[2];
+	uint32_t current;	
+};
+
+struct wlsc_input_device {
+	struct wl_object base;
+	int32_t x, y;
+	struct wlsc_compositor *ec;
+	struct wlsc_surface *sprite;
+	struct wl_list link;
+
+	int grab;
+	struct wlsc_surface *grab_surface;
+	struct wlsc_surface *pointer_focus;
+	struct wlsc_surface *keyboard_focus;
+	struct wl_array keys;
+
+	struct wlsc_listener listener;
+};
+
+struct wlsc_compositor {
+	struct wl_compositor base;
+	struct wl_visual argb_visual, premultiplied_argb_visual, rgb_visual;
+
+	EGLDisplay display;
+	EGLContext context;
+	int drm_fd;
+	GLuint fbo;
+	struct wl_display *wl_display;
+
+	struct wl_list output_list;
+	struct wl_list input_device_list;
+	struct wl_list surface_list;
+
+	struct wl_list surface_destroy_listener_list;
+
+	struct wl_event_source *term_signal_source;
+
+        /* tty handling state */
+	int tty_fd;
+	uint32_t vt_active : 1;
+
+	struct termios terminal_attributes;
+	struct wl_event_source *tty_input_source;
+	struct wl_event_source *enter_vt_source;
+	struct wl_event_source *leave_vt_source;
+
+	struct udev *udev;
+
+	/* Repaint state. */
+	struct wl_event_source *timer_source;
+	int repaint_needed;
+	int repaint_on_timeout;
+	struct timespec previous_swap;
+	uint32_t current_frame;
+	struct wl_event_source *drm_source;
+
+	uint32_t modifier_state;
+};
+
+#define MODIFIER_CTRL	(1 << 8)
+#define MODIFIER_ALT	(1 << 9)
+
+struct wlsc_vector {
+	GLdouble x, y, z;
+};
+
+struct wlsc_surface {
+	struct wl_surface base;
+	struct wlsc_compositor *compositor;
+	struct wl_visual *visual;
+	GLuint texture;
+	EGLImageKHR image;
+	struct wl_map map;
+	int width, height;
+	struct wl_list link;
+	struct wlsc_matrix matrix;
+};
+
+static const char *option_background = "background.jpg";
+static int option_connector = 0;
+
+static const GOptionEntry option_entries[] = {
+	{ "background", 'b', 0, G_OPTION_ARG_STRING,
+	  &option_background, "Background image" },
+	{ "connector", 'c', 0, G_OPTION_ARG_INT,
+	  &option_connector, "KMS connector" },
+	{ NULL }
+};
+
+struct screenshooter {
+	struct wl_object base;
+	struct wlsc_compositor *ec;
+};
+
+struct screenshooter_interface {
+	void (*shoot)(struct wl_client *client, struct screenshooter *shooter);
+};
+
+static void
+screenshooter_shoot(struct wl_client *client, struct screenshooter *shooter)
+{
+	struct wlsc_compositor *ec = shooter->ec;
+	struct wlsc_output *output;
+	char buffer[256];
+	GdkPixbuf *pixbuf, *normal;
+	GError *error = NULL;
+	unsigned char *data;
+	int i, j;
+
+	i = 0;
+	wl_list_for_each(output, &ec->output_list, link) {
+		snprintf(buffer, sizeof buffer, "wayland-screenshot-%d.png", i++);
+		data = malloc(output->width * output->height * 4);
+		if (data == NULL) {
+			fprintf(stderr, "couldn't allocate image buffer\n");
+			continue;
+		}
+
+		glReadBuffer(GL_FRONT);
+		glPixelStorei(GL_PACK_ALIGNMENT, 1);
+		glReadPixels(0, 0, output->width, output->height,
+			     GL_RGBA, GL_UNSIGNED_BYTE, data);
+
+		/* FIXME: We should just use a RGB visual for the frontbuffer. */
+		for (j = 3; j < output->width * output->height * 4; j += 4)
+			data[j] = 0xff;
+
+		pixbuf = gdk_pixbuf_new_from_data(data, GDK_COLORSPACE_RGB, TRUE,
+						  8, output->width, output->height, output->width * 4,
+						  NULL, NULL);
+		normal = gdk_pixbuf_flip(pixbuf, FALSE);
+		gdk_pixbuf_save(normal, buffer, "png", &error, NULL);
+		gdk_pixbuf_unref(normal);
+		gdk_pixbuf_unref(pixbuf);
+		free(data);
+	}
+}
+
+static const struct wl_message screenshooter_methods[] = {
+	{ "shoot", "", NULL }
+};
+
+static const struct wl_interface screenshooter_interface = {
+	"screenshooter", 1,
+	ARRAY_LENGTH(screenshooter_methods),
+	screenshooter_methods,
+};
+
+struct screenshooter_interface screenshooter_implementation = {
+	screenshooter_shoot
+};
+
+static struct screenshooter *
+screenshooter_create(struct wlsc_compositor *ec)
+{
+	struct screenshooter *shooter;
+
+	shooter = malloc(sizeof *shooter);
+	if (shooter == NULL)
+		return NULL;
+
+	shooter->base.interface = &screenshooter_interface;
+	shooter->base.implementation = (void(**)(void)) &screenshooter_implementation;
+	shooter->ec = ec;
+
+	return shooter;
+};
+				   
+static void
+wlsc_matrix_init(struct wlsc_matrix *matrix)
+{
+	static const struct wlsc_matrix identity = {
+		{ 1, 0, 0, 0,  0, 1, 0, 0,  0, 0, 1, 0,  0, 0, 0, 1 }
+	};
+
+	memcpy(matrix, &identity, sizeof identity);
+}
+
+static void
+wlsc_matrix_multiply(struct wlsc_matrix *m, const struct wlsc_matrix *n)
+{
+	struct wlsc_matrix tmp;
+	const GLdouble *row, *column;
+	div_t d;
+	int i, j;
+
+	for (i = 0; i < 16; i++) {
+		tmp.d[i] = 0;
+		d = div(i, 4);
+		row = m->d + d.quot * 4;
+		column = n->d + d.rem;
+		for (j = 0; j < 4; j++)
+			tmp.d[i] += row[j] * column[j * 4];
+	}
+	memcpy(m, &tmp, sizeof tmp);
+}
+
+static void
+wlsc_matrix_translate(struct wlsc_matrix *matrix, GLdouble x, GLdouble y, GLdouble z)
+{
+	struct wlsc_matrix translate = {
+		{ 1, 0, 0, 0,  0, 1, 0, 0,  0, 0, 1, 0,  x, y, z, 1 }
+	};
+
+	wlsc_matrix_multiply(matrix, &translate);
+}
+
+static void
+wlsc_matrix_scale(struct wlsc_matrix *matrix, GLdouble x, GLdouble y, GLdouble z)
+{
+	struct wlsc_matrix scale = {
+		{ x, 0, 0, 0,  0, y, 0, 0,  0, 0, z, 0,  0, 0, 0, 1 }
+	};
+
+	wlsc_matrix_multiply(matrix, &scale);
+}
+
+static void
+wlsc_matrix_rotate(struct wlsc_matrix *matrix,
+		   GLdouble angle, GLdouble x, GLdouble y, GLdouble z)
+{
+	GLdouble c = cos(angle);
+	GLdouble s = sin(angle);
+	struct wlsc_matrix rotate = {
+		{ x * x * (1 - c) + c,     y * x * (1 - c) + z * s, x * z * (1 - c) - y * s, 0,
+		  x * y * (1 - c) - z * s, y * y * (1 - c) + c,     y * z * (1 - c) + x * s, 0, 
+		  x * z * (1 - c) + y * s, y * z * (1 - c) - x * s, z * z * (1 - c) + c,     0,
+		  0, 0, 0, 1 }
+	};
+
+	wlsc_matrix_multiply(matrix, &rotate);
+}
+
+static void
+wlsc_surface_init(struct wlsc_surface *surface,
+		  struct wlsc_compositor *compositor, struct wl_visual *visual,
+		  int32_t x, int32_t y, int32_t width, int32_t height)
+{
+	glGenTextures(1, &surface->texture);
+	surface->compositor = compositor;
+	surface->map.x = x;
+	surface->map.y = y;
+	surface->map.width = width;
+	surface->map.height = height;
+	surface->visual = visual;
+	wlsc_matrix_init(&surface->matrix);
+}
+
+static struct wlsc_surface *
+wlsc_surface_create_from_cairo_surface(struct wlsc_compositor *ec,
+				      cairo_surface_t *surface,
+				      int x, int y, int width, int height)
+{
+	struct wlsc_surface *es;
+	int stride;
+	void *data;
+
+	stride = cairo_image_surface_get_stride(surface);
+	data = cairo_image_surface_get_data(surface);
+
+	es = malloc(sizeof *es);
+	if (es == NULL)
+		return NULL;
+
+	wlsc_surface_init(es, ec, &ec->premultiplied_argb_visual,
+			  x, y, width, height);
+	glBindTexture(GL_TEXTURE_2D, es->texture);
+	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0,
+		     GL_BGRA, GL_UNSIGNED_BYTE, data);
+
+	return es;
+}
+
+static void
+wlsc_surface_destroy(struct wlsc_surface *surface,
+		     struct wlsc_compositor *compositor)
+{
+	struct wlsc_listener *l;
+
+	wl_list_remove(&surface->link);
+	glDeleteTextures(1, &surface->texture);
+	wl_client_remove_surface(surface->base.client, &surface->base);
+
+	wl_list_for_each(l, &compositor->surface_destroy_listener_list, link)
+		l->func(l, surface);
+
+	free(surface);
+}
+
+static void
+pointer_path(cairo_t *cr, int x, int y)
+{
+	const int end = 3, tx = 4, ty = 12, dx = 5, dy = 10;
+	const int width = 16, height = 16;
+
+	cairo_move_to(cr, x, y);
+	cairo_line_to(cr, x + tx, y + ty);
+	cairo_line_to(cr, x + dx, y + dy);
+	cairo_line_to(cr, x + width - end, y + height);
+	cairo_line_to(cr, x + width, y + height - end);
+	cairo_line_to(cr, x + dy, y + dx);
+	cairo_line_to(cr, x + ty, y + tx);
+	cairo_close_path(cr);
+}
+
+static struct wlsc_surface *
+pointer_create(struct wlsc_compositor *ec, int x, int y, int width, int height)
+{
+	struct wlsc_surface *es;
+	const int hotspot_x = 16, hotspot_y = 16;
+	cairo_surface_t *surface;
+	cairo_t *cr;
+
+	surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
+					     width, height);
+
+	cr = cairo_create(surface);
+	pointer_path(cr, hotspot_x + 5, hotspot_y + 4);
+	cairo_set_line_width(cr, 2);
+	cairo_set_source_rgb(cr, 0, 0, 0);
+	cairo_stroke_preserve(cr);
+	cairo_fill(cr);
+	blur_surface(surface, width);
+
+	pointer_path(cr, hotspot_x, hotspot_y);
+	cairo_stroke_preserve(cr);
+	cairo_set_source_rgb(cr, 1, 1, 1);
+	cairo_fill(cr);
+	cairo_destroy(cr);
+
+	es = wlsc_surface_create_from_cairo_surface(ec,
+						   surface,
+						   x - hotspot_x,
+						   y - hotspot_y,
+						   width, height);
+	
+	cairo_surface_destroy(surface);
+
+	return es;
+}
+
+static struct wlsc_surface *
+background_create(struct wlsc_output *output, const char *filename)
+{
+	struct wlsc_surface *background;
+	GdkPixbuf *pixbuf;
+	GError *error = NULL;
+	void *data;
+	GLenum format;
+
+	background = malloc(sizeof *background);
+	if (background == NULL)
+		return NULL;
+	
+	g_type_init();
+
+	pixbuf = gdk_pixbuf_new_from_file_at_scale(filename,
+						   output->width,
+						   output->height,
+						   FALSE, &error);
+	if (error != NULL) {
+		free(background);
+		return NULL;
+	}
+
+	data = gdk_pixbuf_get_pixels(pixbuf);
+
+	wlsc_surface_init(background, output->compositor,
+			  &output->compositor->rgb_visual,
+			  output->x, output->y, output->width, output->height);
+
+	glBindTexture(GL_TEXTURE_2D, background->texture);
+	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+        if (gdk_pixbuf_get_has_alpha(pixbuf))
+		format = GL_RGBA;
+	else
+		format = GL_RGB;
+
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
+		     output->width, output->height, 0,
+		     format, GL_UNSIGNED_BYTE, data);
+
+	return background;
+}
+
+static void
+wlsc_surface_draw(struct wlsc_surface *es)
+{
+	struct wlsc_compositor *ec = es->compositor;
+	GLint vertices[12];
+	GLint tex_coords[12] = { 0, 0,  0, 1,  1, 0,  1, 1 };
+	GLuint indices[4] = { 0, 1, 2, 3 };
+
+	vertices[0] = es->map.x;
+	vertices[1] = es->map.y;
+	vertices[2] = 0;
+
+	vertices[3] = es->map.x;
+	vertices[4] = es->map.y + es->map.height;
+	vertices[5] = 0;
+
+	vertices[6] = es->map.x + es->map.width;
+	vertices[7] = es->map.y;
+	vertices[8] = 0;
+
+	vertices[9] = es->map.x + es->map.width;
+	vertices[10] = es->map.y + es->map.height;
+	vertices[11] = 0;
+
+	if (es->visual == &ec->argb_visual) {
+		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+		glEnable(GL_BLEND);
+	} else if (es->visual == &ec->premultiplied_argb_visual) {
+		glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+		glEnable(GL_BLEND);
+	} else {
+		glDisable(GL_BLEND);
+	}
+
+	glPushMatrix();
+	//glMultMatrixd(es->matrix.d);
+	glBindTexture(GL_TEXTURE_2D, es->texture);
+	glEnable(GL_TEXTURE_2D);
+	glEnableClientState(GL_VERTEX_ARRAY);
+	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+	glVertexPointer(3, GL_INT, 0, vertices);
+	glTexCoordPointer(2, GL_INT, 0, tex_coords);
+	glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_INT, indices);
+	glPopMatrix();
+}
+
+static void
+wlsc_surface_raise(struct wlsc_surface *surface)
+{
+	struct wlsc_compositor *compositor = surface->compositor;
+
+	wl_list_remove(&surface->link);
+	wl_list_insert(compositor->surface_list.prev, &surface->link);
+}
+
+static void
+wlsc_surface_lower(struct wlsc_surface *surface)
+{
+	struct wlsc_compositor *compositor = surface->compositor;
+
+	wl_list_remove(&surface->link);
+	wl_list_insert(&compositor->surface_list, &surface->link);
+}
+
+static void
+wlsc_vector_add(struct wlsc_vector *v1, struct wlsc_vector *v2)
+{
+	v1->x += v2->x;
+	v1->y += v2->y;
+	v1->z += v2->z;
+}
+
+static void
+wlsc_vector_subtract(struct wlsc_vector *v1, struct wlsc_vector *v2)
+{
+	v1->x -= v2->x;
+	v1->y -= v2->y;
+	v1->z -= v2->z;
+}
+
+static void
+wlsc_vector_scalar(struct wlsc_vector *v1, GLdouble s)
+{
+	v1->x *= s;
+	v1->y *= s;
+	v1->z *= s;
+}
+
+static void
+page_flip_handler(int fd, unsigned int frame,
+		  unsigned int sec, unsigned int usec, void *data)
+{
+	struct wlsc_output *output = data;
+	struct wlsc_compositor *compositor = output->compositor;
+	uint32_t msecs;
+
+	msecs = sec * 1000 + usec / 1000;
+	wl_display_post_frame(compositor->wl_display,
+			      &compositor->base,
+			      compositor->current_frame, msecs);
+
+	wl_event_source_timer_update(compositor->timer_source, 5);
+	compositor->repaint_on_timeout = 1;
+
+	compositor->current_frame++;
+}
+
+static void
+repaint_output(struct wlsc_output *output)
+{
+	struct wlsc_compositor *ec = output->compositor;
+	struct wlsc_surface *es;
+	struct wlsc_input_device *eid;
+	double s = 3000;
+
+	glViewport(0, 0, output->width, output->height);
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+	glFrustum(-output->width / s, output->width / s,
+		  -output->height / s, output->height / s, 1, 2 * s);
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity();
+	glClearColor(0, 0, 0, 1);
+
+	glTranslatef(-output->width / 2, -output->height / 2, -s / 2);
+
+	if (output->background)
+		wlsc_surface_draw(output->background);
+	else
+		glClear(GL_COLOR_BUFFER_BIT);
+
+	wl_list_for_each(es, &ec->surface_list, link)
+		wlsc_surface_draw(es);
+
+	wl_list_for_each(eid, &ec->input_device_list, link)
+		wlsc_surface_draw(eid->sprite);
+
+	output->current ^= 1;
+
+	glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER_EXT,
+				  GL_COLOR_ATTACHMENT0_EXT,
+				  GL_RENDERBUFFER_EXT,
+				  output->rbo[output->current]);
+	drmModePageFlip(ec->drm_fd, output->crtc_id,
+			output->fb_id[output->current ^ 1],
+			DRM_MODE_PAGE_FLIP_EVENT, output);
+}
+
+static void
+repaint(void *data)
+{
+	struct wlsc_compositor *ec = data;
+	struct wlsc_output *output;
+
+	if (!ec->repaint_needed) {
+		ec->repaint_on_timeout = 0;
+		return;
+	}
+
+	wl_list_for_each(output, &ec->output_list, link)
+		repaint_output(output);
+
+	ec->repaint_needed = 0;
+}
+
+static void
+wlsc_compositor_schedule_repaint(struct wlsc_compositor *compositor)
+{
+	struct wlsc_output *output;
+
+	compositor->repaint_needed = 1;
+	if (compositor->repaint_on_timeout)
+		return;
+
+	wl_list_for_each(output, &compositor->output_list, link)
+		drmModePageFlip(compositor->drm_fd, output->crtc_id,
+				output->fb_id[output->current ^ 1],
+				DRM_MODE_PAGE_FLIP_EVENT, output);
+}
+
+static void
+surface_destroy(struct wl_client *client,
+		struct wl_surface *surface)
+{
+	struct wlsc_surface *es = (struct wlsc_surface *) surface;
+	struct wlsc_compositor *ec = es->compositor;
+
+	wlsc_surface_destroy(es, ec);
+
+	wlsc_compositor_schedule_repaint(ec);
+}
+
+static void
+surface_attach(struct wl_client *client,
+	       struct wl_surface *surface, uint32_t name, 
+	       uint32_t width, uint32_t height, uint32_t stride,
+	       struct wl_object *visual)
+{
+	struct wlsc_surface *es = (struct wlsc_surface *) surface;
+	struct wlsc_compositor *ec = es->compositor;
+	EGLint attribs[] = {
+		EGL_IMAGE_WIDTH_INTEL,	0,
+		EGL_IMAGE_HEIGHT_INTEL,	0,
+		EGL_IMAGE_NAME_INTEL,	0,
+		EGL_IMAGE_STRIDE_INTEL,	0,
+		EGL_IMAGE_FORMAT_INTEL,	EGL_FORMAT_RGBA_8888_KHR,
+		EGL_NONE
+	};
+
+	es->width = width;
+	es->height = height;
+
+	if (visual == &ec->argb_visual.base)
+		es->visual = &ec->argb_visual;
+	else if (visual == &ec->premultiplied_argb_visual.base)
+		es->visual = &ec->premultiplied_argb_visual;
+	else if (visual == &ec->rgb_visual.base)
+		es->visual = &ec->rgb_visual;
+	else
+		/* FIXME: Smack client with an exception event */;
+
+	glBindTexture(GL_TEXTURE_2D, es->texture);
+	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+	if (es->image)
+		eglDestroyImageKHR(ec->display, es->image);
+
+	attribs[1] = width;
+	attribs[3] = height;
+	attribs[5] = name;
+	attribs[7] = stride / 4;
+
+	es->image = eglCreateImageKHR(ec->display, ec->context,
+				       EGL_SYSTEM_IMAGE_INTEL,
+				       NULL, attribs);
+	glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, es->image);
+	
+}
+
+static void
+surface_map(struct wl_client *client,
+	    struct wl_surface *surface,
+	    int32_t x, int32_t y, int32_t width, int32_t height)
+{
+	struct wlsc_surface *es = (struct wlsc_surface *) surface;
+
+	es->map.x = x;
+	es->map.y = y;
+	es->map.width = width;
+	es->map.height = height;
+}
+
+static void
+surface_copy(struct wl_client *client,
+	     struct wl_surface *surface,
+	     int32_t dst_x, int32_t dst_y,
+	     uint32_t name, uint32_t stride,
+	     int32_t x, int32_t y, int32_t width, int32_t height)
+{
+}
+
+static void
+surface_damage(struct wl_client *client,
+	       struct wl_surface *surface,
+	       int32_t x, int32_t y, int32_t width, int32_t height)
+{
+	/* FIXME: This need to take a damage region, of course. */
+}
+
+const static struct wl_surface_interface surface_interface = {
+	surface_destroy,
+	surface_attach,
+	surface_map,
+	surface_copy,
+	surface_damage
+};
+
+static void
+compositor_create_surface(struct wl_client *client,
+			  struct wl_compositor *compositor, uint32_t id)
+{
+	struct wlsc_compositor *ec = (struct wlsc_compositor *) compositor;
+	struct wlsc_surface *surface;
+
+	surface = malloc(sizeof *surface);
+	if (surface == NULL)
+		/* FIXME: Send OOM event. */
+		return;
+
+	wlsc_surface_init(surface, ec, NULL, 0, 0, 0, 0);
+
+	wl_list_insert(ec->surface_list.prev, &surface->link);
+	wl_client_add_surface(client, &surface->base,
+			      &surface_interface, id);
+}
+
+static void
+compositor_commit(struct wl_client *client,
+		  struct wl_compositor *compositor, uint32_t key)
+{
+	struct wlsc_compositor *ec = (struct wlsc_compositor *) compositor;
+
+	wlsc_compositor_schedule_repaint(ec);
+	wl_client_send_acknowledge(client, compositor, key, ec->current_frame);
+}
+
+const static struct wl_compositor_interface compositor_interface = {
+	compositor_create_surface,
+	compositor_commit
+};
+
+static void
+wlsc_surface_transform(struct wlsc_surface *surface,
+		       int32_t x, int32_t y, int32_t *sx, int32_t *sy)
+{
+	/* Transform to surface coordinates. */
+	*sx = (x - surface->map.x) * surface->width / surface->map.width;
+	*sy = (y - surface->map.y) * surface->height / surface->map.height;
+}
+
+static void
+wlsc_input_device_set_keyboard_focus(struct wlsc_input_device *device,
+				     struct wlsc_surface *surface)
+{
+	if (device->keyboard_focus == surface)
+		return;
+
+	if (device->keyboard_focus &&
+	    (!surface || device->keyboard_focus->base.client != surface->base.client))
+		wl_surface_post_event(&device->keyboard_focus->base,
+				      &device->base,
+				      WL_INPUT_KEYBOARD_FOCUS, NULL, &device->keys);
+
+	if (surface)
+		wl_surface_post_event(&surface->base,
+				      &device->base,
+				      WL_INPUT_KEYBOARD_FOCUS,
+				      &surface->base, &device->keys);
+
+	device->keyboard_focus = surface;
+}
+
+static void
+wlsc_input_device_set_pointer_focus(struct wlsc_input_device *device,
+				    struct wlsc_surface *surface)
+{
+	if (device->pointer_focus == surface)
+		return;
+
+	if (device->pointer_focus &&
+	    (!surface || device->pointer_focus->base.client != surface->base.client))
+		wl_surface_post_event(&device->pointer_focus->base,
+				      &device->base,
+				      WL_INPUT_POINTER_FOCUS, NULL);
+	if (surface)
+		wl_surface_post_event(&surface->base,
+				      &device->base,
+				      WL_INPUT_POINTER_FOCUS, &surface->base);
+
+	device->pointer_focus = surface;
+}
+
+static struct wlsc_surface *
+pick_surface(struct wlsc_input_device *device, int32_t *sx, int32_t *sy)
+{
+	struct wlsc_compositor *ec = device->ec;
+	struct wlsc_surface *es;
+
+	if (device->grab > 0) {
+		wlsc_surface_transform(device->grab_surface,
+				       device->x, device->y, sx, sy);
+		return device->grab_surface;
+	}
+
+	wl_list_for_each(es, &ec->surface_list, link)
+		if (es->map.x <= device->x &&
+		    device->x < es->map.x + es->map.width &&
+		    es->map.y <= device->y &&
+		    device->y < es->map.y + es->map.height) {
+			wlsc_surface_transform(es, device->x, device->y, sx, sy);
+			return es;
+		}
+
+	return NULL;
+}
+
+void
+notify_motion(struct wlsc_input_device *device, int x, int y)
+{
+	struct wlsc_surface *es;
+	struct wlsc_compositor *ec = device->ec;
+	struct wlsc_output *output;
+	const int hotspot_x = 16, hotspot_y = 16;
+	int32_t sx, sy;
+
+	if (!ec->vt_active)
+		return;
+
+	/* FIXME: We need some multi head love here. */
+	output = container_of(ec->output_list.next, struct wlsc_output, link);
+	if (x < output->x)
+		x = 0;
+	if (y < output->y)
+		y = 0;
+	if (x >= output->x + output->width)
+		x = output->x + output->width - 1;
+	if (y >= output->y + output->height)
+		y = output->y + output->height - 1;
+
+	device->x = x;
+	device->y = y;
+	es = pick_surface(device, &sx, &sy);
+
+	wlsc_input_device_set_pointer_focus(device, es);
+		
+	if (es)
+		wl_surface_post_event(&es->base, &device->base,
+				      WL_INPUT_MOTION, x, y, sx, sy);
+
+	device->sprite->map.x = x - hotspot_x;
+	device->sprite->map.y = y - hotspot_y;
+
+	wlsc_compositor_schedule_repaint(device->ec);
+}
+
+void
+notify_button(struct wlsc_input_device *device,
+	      int32_t button, int32_t state)
+{
+	struct wlsc_surface *surface;
+	struct wlsc_compositor *compositor = device->ec;
+	int32_t sx, sy;
+
+	if (!compositor->vt_active)
+		return;
+
+	surface = pick_surface(device, &sx, &sy);
+	if (surface) {
+		if (state) {
+			wlsc_surface_raise(surface);
+			device->grab++;
+			device->grab_surface = surface;
+			wlsc_input_device_set_keyboard_focus(device,
+							     surface);
+		} else {
+			device->grab--;
+		}
+
+		/* FIXME: Swallow click on raise? */
+		wl_surface_post_event(&surface->base, &device->base,
+				      WL_INPUT_BUTTON, button, state,
+				      device->x, device->y, sx, sy);
+
+		wlsc_compositor_schedule_repaint(compositor);
+	}
+}
+
+static void on_term_signal(int signal_number, void *data);
+
+void
+notify_key(struct wlsc_input_device *device,
+	   uint32_t key, uint32_t state)
+{
+	struct wlsc_compositor *compositor = device->ec;
+	uint32_t *k, *end;
+	uint32_t modifier;
+
+	if (!compositor->vt_active)
+		return;
+
+	switch (key | compositor->modifier_state) {
+	case KEY_BACKSPACE | MODIFIER_CTRL | MODIFIER_ALT:
+		on_term_signal(SIGTERM, compositor);
+		return;
+	}
+
+	switch (key) {
+	case KEY_LEFTCTRL:
+	case KEY_RIGHTCTRL:
+		modifier = MODIFIER_CTRL;
+		break;
+
+	case KEY_LEFTALT:
+	case KEY_RIGHTALT:
+		modifier = MODIFIER_ALT;
+		break;
+
+	default:
+		modifier = 0;
+		break;
+	}
+
+	if (state)
+		compositor->modifier_state |= modifier;
+	else
+		compositor->modifier_state &= ~modifier;
+
+	end = device->keys.data + device->keys.size;
+	for (k = device->keys.data; k < end; k++) {
+		if (*k == key)
+			*k = *--end;
+	}
+	device->keys.size = (void *) end - device->keys.data;
+	if (state) {
+		k = wl_array_add(&device->keys, sizeof *k);
+		*k = key;
+	}
+
+	if (device->keyboard_focus != NULL)
+		wl_surface_post_event(&device->keyboard_focus->base,
+				      &device->base, 
+				      WL_INPUT_KEY, key, state);
+}
+
+struct evdev_input_device *
+evdev_input_device_create(struct wlsc_input_device *device,
+			  struct wl_display *display, const char *path);
+
+static void
+handle_surface_destroy(struct wlsc_listener *listener,
+		       struct wlsc_surface *surface)
+{
+	struct wlsc_input_device *device =
+		container_of(listener, struct wlsc_input_device, listener);
+	struct wlsc_surface *focus;
+	int32_t sx, sy;
+
+	if (device->grab_surface == surface) {
+		device->grab_surface = NULL;
+		device->grab = 0;
+	}
+	if (device->keyboard_focus == surface)
+		wlsc_input_device_set_keyboard_focus(device, NULL);
+	if (device->pointer_focus == surface) {
+		focus = pick_surface(device, &sx, &sy);
+		wlsc_input_device_set_pointer_focus(device, focus);
+		fprintf(stderr, "lost pointer focus surface, reverting to %p\n", focus);
+	}
+}
+
+static struct wlsc_input_device *
+create_input_device(struct wlsc_compositor *ec)
+{
+	struct wlsc_input_device *device;
+
+	device = malloc(sizeof *device);
+	if (device == NULL)
+		return NULL;
+
+	memset(device, 0, sizeof *device);
+	device->base.interface = &wl_input_device_interface;
+	device->base.implementation = NULL;
+	wl_display_add_object(ec->wl_display, &device->base);
+	wl_display_add_global(ec->wl_display, &device->base, NULL);
+	device->x = 100;
+	device->y = 100;
+	device->ec = ec;
+
+	device->listener.func = handle_surface_destroy;
+	wl_list_insert(ec->surface_destroy_listener_list.prev,
+		       &device->listener.link);
+	wl_list_insert(ec->input_device_list.prev, &device->link);
+
+	return device;
+}
+
+void
+wlsc_device_get_position(struct wlsc_input_device *device, int32_t *x, int32_t *y)
+{
+	*x = device->x;
+	*y = device->y;
+}
+
+static void
+post_output_geometry(struct wl_client *client, struct wl_object *global)
+{
+	struct wlsc_output *output =
+		container_of(global, struct wlsc_output, base);
+
+	wl_client_post_event(client, global,
+			     WL_OUTPUT_GEOMETRY,
+			     output->width, output->height);
+}
+
+static void
+on_drm_input(int fd, uint32_t mask, void *data)
+{
+	drmEventContext evctx;
+
+	memset(&evctx, 0, sizeof evctx);
+	evctx.version = DRM_EVENT_CONTEXT_VERSION;
+	evctx.page_flip_handler = page_flip_handler;
+	drmHandleEvent(fd, &evctx);
+}
+
+static int
+init_egl(struct wlsc_compositor *ec, struct udev_device *device)
+{
+	struct wl_event_loop *loop;
+	EGLDisplayTypeDRMMESA display;
+	EGLint major, minor;
+
+	display.type = EGL_DISPLAY_TYPE_DRM_MESA;
+	display.device = udev_device_get_devnode(device);
+	ec->display = eglGetDisplay((EGLNativeDisplayType) &display);
+	if (ec->display == NULL) {
+		fprintf(stderr, "failed to create display\n");
+		return -1;
+	}
+
+	if (!eglInitialize(ec->display, &major, &minor)) {
+		fprintf(stderr, "failed to initialize display\n");
+		return -1;
+	}
+
+	ec->context = eglCreateContext(ec->display, NULL, NULL, NULL);
+	if (ec->context == NULL) {
+		fprintf(stderr, "failed to create context\n");
+		return -1;
+	}
+
+	if (!eglMakeCurrent(ec->display, EGL_NO_SURFACE, EGL_NO_SURFACE, ec->context)) {
+		fprintf(stderr, "failed to make context current\n");
+		return -1;
+	}
+
+	glGenFramebuffers(1, &ec->fbo);
+	glBindFramebuffer(GL_FRAMEBUFFER_EXT, ec->fbo);
+
+	loop = wl_display_get_event_loop(ec->wl_display);
+	ec->drm_fd = display.fd;
+	ec->drm_source =
+		wl_event_loop_add_fd(loop, ec->drm_fd,
+				     WL_EVENT_READABLE, on_drm_input, ec);
+
+	return 0;
+}
+
+static drmModeModeInfo builtin_1024x768 = {
+	63500,			/* clock */
+	1024, 1072, 1176, 1328, 0,
+	768, 771, 775, 798, 0,
+	59920,
+	DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
+	0,
+	"1024x768"
+};
+
+static int
+create_output_for_connector(struct wlsc_compositor *ec,
+			    drmModeRes *resources,
+			    drmModeConnector *connector)
+{
+	struct wlsc_output *output;
+	drmModeEncoder *encoder;
+	drmModeModeInfo *mode;
+	int i, ret;
+	EGLint name, handle, stride, attribs[] = {
+		EGL_IMAGE_WIDTH_INTEL,	0,
+		EGL_IMAGE_HEIGHT_INTEL,	0,
+		EGL_IMAGE_FORMAT_INTEL,	EGL_FORMAT_RGBA_8888_KHR,
+		EGL_IMAGE_USE_INTEL,	EGL_IMAGE_USE_SHARE_INTEL |
+					EGL_IMAGE_USE_SCANOUT_INTEL,
+		EGL_NONE
+	};
+
+	output = malloc(sizeof *output);
+	if (output == NULL)
+		return -1;
+
+	if (connector->count_modes > 0) 
+		mode = &connector->modes[0];
+	else
+		mode = &builtin_1024x768;
+
+	encoder = drmModeGetEncoder(ec->drm_fd, connector->encoders[0]);
+	if (encoder == NULL) {
+		fprintf(stderr, "No encoder for connector.\n");
+		return -1;
+	}
+
+	for (i = 0; i < resources->count_crtcs; i++) {
+		if (encoder->possible_crtcs & (1 << i))
+			break;
+	}
+	if (i == resources->count_crtcs) {
+		fprintf(stderr, "No usable crtc for encoder.\n");
+		return -1;
+	}
+
+	output->compositor = ec;
+	output->crtc_id = resources->crtcs[i];
+	output->connector_id = connector->connector_id;
+	output->mode = *mode;
+	output->x = 0;
+	output->y = 0;
+	output->width = mode->hdisplay;
+	output->height = mode->vdisplay;
+
+	printf("using crtc %d, connector %d and encoder %d, mode %s\n",
+	       output->crtc_id,
+	       output->connector_id,
+	       encoder->encoder_id,
+	       mode->name);
+
+	drmModeFreeEncoder(encoder);
+
+	glGenRenderbuffers(2, output->rbo);
+	for (i = 0; i < 2; i++) {
+		glBindRenderbuffer(GL_RENDERBUFFER_EXT, output->rbo[i]);
+
+		attribs[1] = output->width;
+		attribs[3] = output->height;
+		output->image[i] = eglCreateImageKHR(ec->display, ec->context,
+						     EGL_SYSTEM_IMAGE_INTEL,
+						     NULL, attribs);
+		glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER, output->image[i]);
+		eglShareImageINTEL(ec->display, ec->context,
+				   output->image[i], 0, &name, &handle, &stride);
+
+		ret = drmModeAddFB(ec->drm_fd, output->width, output->height,
+				   32, 32, stride * 4, handle, &output->fb_id[i]);
+		if (ret) {
+			fprintf(stderr, "failed to add fb %d: %m\n", i);
+			return -1;
+		}
+	}
+
+	output->current = 0;
+	glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER_EXT,
+				  GL_COLOR_ATTACHMENT0_EXT,
+				  GL_RENDERBUFFER_EXT,
+				  output->rbo[output->current]);
+	ret = drmModeSetCrtc(ec->drm_fd, output->crtc_id,
+			     output->fb_id[output->current ^ 1], 0, 0,
+			     &output->connector_id, 1, &output->mode);
+	if (ret) {
+		fprintf(stderr, "failed to set mode: %m\n");
+		return -1;
+	}
+
+	output->base.interface = &wl_output_interface;
+	wl_display_add_object(ec->wl_display, &output->base);
+	wl_display_add_global(ec->wl_display, &output->base, post_output_geometry);
+	wl_list_insert(ec->output_list.prev, &output->link);
+
+	output->background = background_create(output, option_background);
+
+	return 0;
+}
+
+static int
+create_outputs(struct wlsc_compositor *ec)
+{
+	drmModeConnector *connector;
+	drmModeRes *resources;
+	int i;
+
+	resources = drmModeGetResources(ec->drm_fd);
+	if (!resources) {
+		fprintf(stderr, "drmModeGetResources failed\n");
+		return -1;
+	}
+
+	for (i = 0; i < resources->count_connectors; i++) {
+		connector = drmModeGetConnector(ec->drm_fd, resources->connectors[i]);
+		if (connector == NULL)
+			continue;
+
+		if (connector->connection == DRM_MODE_CONNECTED &&
+		    (option_connector == 0 ||
+		     connector->connector_id == option_connector))
+			if (create_output_for_connector(ec, resources, connector) < 0)
+				return -1;
+
+		drmModeFreeConnector(connector);
+	}
+
+	if (wl_list_empty(&ec->output_list)) {
+		fprintf(stderr, "No currently active connector found.\n");
+		return -1;
+	}
+
+	drmModeFreeResources(resources);
+
+	return 0;
+}
+
+static const struct wl_interface visual_interface = {
+	"visual", 1,
+};
+
+static void
+add_visuals(struct wlsc_compositor *ec)
+{
+	ec->argb_visual.base.interface = &visual_interface;
+	ec->argb_visual.base.implementation = NULL;
+	wl_display_add_object(ec->wl_display, &ec->argb_visual.base);
+	wl_display_add_global(ec->wl_display, &ec->argb_visual.base, NULL);
+
+	ec->premultiplied_argb_visual.base.interface = &visual_interface;
+	ec->premultiplied_argb_visual.base.implementation = NULL;
+	wl_display_add_object(ec->wl_display,
+			      &ec->premultiplied_argb_visual.base);
+	wl_display_add_global(ec->wl_display,
+			      &ec->premultiplied_argb_visual.base, NULL);
+
+	ec->rgb_visual.base.interface = &visual_interface;
+	ec->rgb_visual.base.implementation = NULL;
+	wl_display_add_object(ec->wl_display, &ec->rgb_visual.base);
+	wl_display_add_global(ec->wl_display, &ec->rgb_visual.base, NULL);
+}
+
+static void on_enter_vt(int signal_number, void *data)
+{
+	struct wlsc_compositor *ec = data;
+	struct wlsc_output *output;
+	int ret;
+
+	ret = drmSetMaster(ec->drm_fd);
+	if (ret) {
+		fprintf(stderr, "failed to set drm master\n");
+		return;
+	}
+
+	ioctl(ec->tty_fd, VT_RELDISP, VT_ACKACQ);
+	ec->vt_active = TRUE;
+
+	wl_list_for_each(output, &ec->output_list, link) {
+		ret = drmModeSetCrtc(ec->drm_fd, output->crtc_id,
+				     output->fb_id[output->current ^ 1], 0, 0,
+				     &output->connector_id, 1, &output->mode);
+		if (ret)
+			fprintf(stderr, "failed to set mode for connector %d: %m\n",
+				output->connector_id);
+	}
+}
+
+static void on_leave_vt(int signal_number, void *data)
+{
+	struct wlsc_compositor *ec = data;
+	int ret;
+
+	ret = drmDropMaster(ec->drm_fd);
+	if (ret) {
+		fprintf(stderr, "failed to drop drm master\n");
+		return;
+	}
+
+	ioctl (ec->tty_fd, VT_RELDISP, 1);
+	ec->vt_active = FALSE;
+}
+
+static void
+on_tty_input(int fd, uint32_t mask, void *data)
+{
+	struct wlsc_compositor *ec = data;
+
+	/* Ignore input to tty.  We get keyboard events from evdev
+	 */
+	tcflush(ec->tty_fd, TCIFLUSH);
+}
+
+static void on_term_signal(int signal_number, void *data)
+{
+	struct wlsc_compositor *ec = data;
+
+	if (tcsetattr(ec->tty_fd, TCSANOW, &ec->terminal_attributes) < 0)
+		fprintf(stderr, "could not restore terminal to canonical mode\n");
+
+	exit(0);
+}
+
+static int setup_tty(struct wlsc_compositor *ec, struct wl_event_loop *loop)
+{
+	struct termios raw_attributes;
+	struct vt_mode mode = { 0 };
+
+	ec->tty_fd = open("/dev/tty0", O_RDWR | O_NOCTTY);
+	if (ec->tty_fd <= 0) {
+		fprintf(stderr, "failed to open active tty: %m\n");
+		return -1;
+	}
+
+	if (tcgetattr(ec->tty_fd, &ec->terminal_attributes) < 0) {
+		fprintf(stderr, "could not get terminal attributes: %m\n");
+		return -1;
+	}
+
+	/* Ignore control characters and disable echo */
+	raw_attributes = ec->terminal_attributes;
+	cfmakeraw(&raw_attributes);
+
+	/* Fix up line endings to be normal (cfmakeraw hoses them) */
+	raw_attributes.c_oflag |= OPOST | OCRNL;
+
+	if (tcsetattr(ec->tty_fd, TCSANOW, &raw_attributes) < 0)
+		fprintf(stderr, "could not put terminal into raw mode: %m\n");
+
+	ec->term_signal_source =
+		wl_event_loop_add_signal(loop, SIGTERM, on_term_signal, ec);
+
+	ec->tty_input_source =
+		wl_event_loop_add_fd(loop, ec->tty_fd,
+				     WL_EVENT_READABLE, on_tty_input, ec);
+
+	ec->vt_active = TRUE;
+	mode.mode = VT_PROCESS;
+	mode.relsig = SIGUSR1;
+	mode.acqsig = SIGUSR2;
+	if (!ioctl(ec->tty_fd, VT_SETMODE, &mode) < 0) {
+		fprintf(stderr, "failed to take control of vt handling\n");
+	}
+
+	ec->leave_vt_source =
+		wl_event_loop_add_signal(loop, SIGUSR1, on_leave_vt, ec);
+	ec->enter_vt_source =
+		wl_event_loop_add_signal(loop, SIGUSR2, on_enter_vt, ec);
+
+	return 0;
+}
+
+static int
+init_libudev(struct wlsc_compositor *ec)
+{
+	struct udev_enumerate *e;
+        struct udev_list_entry *entry;
+	struct udev_device *device;
+	const char *path;
+	struct wlsc_input_device *input_device;
+
+	ec->udev = udev_new();
+	if (ec->udev == NULL) {
+		fprintf(stderr, "failed to initialize udev context\n");
+		return -1;
+	}
+
+	input_device = create_input_device(ec);
+
+	e = udev_enumerate_new(ec->udev);
+	udev_enumerate_add_match_subsystem(e, "input");
+	udev_enumerate_add_match_property(e, "WAYLAND_SEAT", "1");
+        udev_enumerate_scan_devices(e);
+        udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
+		path = udev_list_entry_get_name(entry);
+		device = udev_device_new_from_syspath(ec->udev, path);
+		evdev_input_device_create(input_device, ec->wl_display,
+					  udev_device_get_devnode(device));
+	}
+        udev_enumerate_unref(e);
+
+	e = udev_enumerate_new(ec->udev);
+	udev_enumerate_add_match_subsystem(e, "drm");
+	udev_enumerate_add_match_property(e, "WAYLAND_SEAT", "1");
+        udev_enumerate_scan_devices(e);
+        udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
+		path = udev_list_entry_get_name(entry);
+		device = udev_device_new_from_syspath(ec->udev, path);
+		if (init_egl(ec, device) < 0) {
+			fprintf(stderr, "failed to initialize egl\n");
+			return -1;
+		}
+		if (create_outputs(ec) < 0) {
+			fprintf(stderr, "failed to create output for %s\n", path);
+			return -1;
+		}
+	}
+        udev_enumerate_unref(e);
+
+	/* Create the pointer surface now that we have a current EGL context. */
+	input_device->sprite =
+		pointer_create(ec, input_device->x, input_device->y, 64, 64);
+
+	return 0;
+}
+
+static struct wlsc_compositor *
+wlsc_compositor_create(struct wl_display *display)
+{
+	struct wlsc_compositor *ec;
+	struct screenshooter *shooter;
+	struct wl_event_loop *loop;
+
+	ec = malloc(sizeof *ec);
+	if (ec == NULL)
+		return NULL;
+
+	memset(ec, 0, sizeof *ec);
+	ec->wl_display = display;
+
+	wl_display_set_compositor(display, &ec->base, &compositor_interface); 
+
+	add_visuals(ec);
+
+	wl_list_init(&ec->surface_list);
+	wl_list_init(&ec->input_device_list);
+	wl_list_init(&ec->output_list);
+	wl_list_init(&ec->surface_destroy_listener_list);
+	if (init_libudev(ec) < 0) {
+		fprintf(stderr, "failed to initialize devices\n");
+		return NULL;
+	}
+
+	shooter = screenshooter_create(ec);
+	wl_display_add_object(display, &shooter->base);
+	wl_display_add_global(display, &shooter->base, NULL);
+
+	loop = wl_display_get_event_loop(ec->wl_display);
+
+	setup_tty(ec, loop);
+
+	ec->timer_source = wl_event_loop_add_timer(loop, repaint, ec);
+	wlsc_compositor_schedule_repaint(ec);
+
+	return ec;
+}
+
+/* The plan here is to generate a random anonymous socket name and
+ * advertise that through a service on the session dbus.
+ */
+static const char socket_name[] = "\0wayland";
+
+int main(int argc, char *argv[])
+{
+	struct wl_display *display;
+	struct wlsc_compositor *ec;
+	GError *error = NULL;
+	GOptionContext *context;
+
+	context = g_option_context_new(NULL);
+	g_option_context_add_main_entries(context, option_entries, "Wayland");
+	if (!g_option_context_parse(context, &argc, &argv, &error)) {
+		fprintf(stderr, "option parsing failed: %s\n", error->message);
+		exit(EXIT_FAILURE);
+	}
+
+	display = wl_display_create();
+
+	ec = wlsc_compositor_create(display);
+	if (ec == NULL) {
+		fprintf(stderr, "failed to create compositor\n");
+		exit(EXIT_FAILURE);
+	}
+		
+	if (wl_display_add_socket(display, socket_name, sizeof socket_name)) {
+		fprintf(stderr, "failed to add socket: %m\n");
+		exit(EXIT_FAILURE);
+	}
+
+	wl_display_run(display);
+
+	return 0;
+}