Split native drm part of compositor out
diff --git a/screenshooter.c b/screenshooter.c
new file mode 100644
index 0000000..aa7788e
--- /dev/null
+++ b/screenshooter.c
@@ -0,0 +1,103 @@
+/*
+ * 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 <stdlib.h>
+#include <GLES2/gl2.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+
+#include "compositor.h"
+
+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;
+		}
+
+		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
+};
+
+void
+screenshooter_create(struct wlsc_compositor *ec)
+{
+	struct screenshooter *shooter;
+
+	shooter = malloc(sizeof *shooter);
+	if (shooter == NULL)
+		return;
+
+	shooter->base.interface = &screenshooter_interface;
+	shooter->base.implementation =
+		(void(**)(void)) &screenshooter_implementation;
+	shooter->ec = ec;
+
+	wl_display_add_object(ec->wl_display, &shooter->base);
+	wl_display_add_global(ec->wl_display, &shooter->base, NULL);
+};