Implement draw background

1 files changed, 31 insertions, 0 deletions

diff --git a/surface.c b/surface.c
index 29530b7..fddc0fe 100644
--- a/surface.c
+++ b/surface.c
@@ -163,6 +163,35 @@ long draw_spans(struct file *filp, unsigned long arg)
 	return param->spans_num;
 }
 
+long do_draw_background(struct file *filp, unsigned long arg)
+{
+	struct doomdev_surf_ioctl_draw_background *param;
+	struct surface_data *surface_data;
+	struct flat_data *flat_data;
+	struct fd flat_fds;
+
+	surface_data = filp->private_data;
+
+	param = (struct doomdev_surf_ioctl_draw_background *) arg;
+
+	flat_fds = fdget(param->flat_fd);
+	flat_data = flat_fds.file->private_data;
+
+	if (surface_data->doom_data != flat_data->doom_data) {
+		return -EINVAL;
+	}
+
+	mutex_lock(&surface_data->doom_data->cmd_mutex);
+
+	draw_background(surface_data, flat_data);
+
+	mutex_unlock(&surface_data->doom_data->cmd_mutex);
+
+	fdput(flat_fds);
+
+	return 0;
+}
+
 long surface_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	switch (cmd) {
@@ -176,6 +205,8 @@ long surface_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 		return draw_columns(filp, arg);
 	case DOOMDEV_SURF_IOCTL_DRAW_SPANS:
 		return draw_spans(filp, arg);
+	case DOOMDEV_SURF_IOCTL_DRAW_BACKGROUND:
+		return do_draw_background(filp, arg);
 	default:
 		return -1;
 	}