1/*
2 * Copyright (C) 2011-2013 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24#ifndef DRM_PLANE_HELPER_H
25#define DRM_PLANE_HELPER_H
26
27#include <drm/drm_rect.h>
28#include <drm/drm_crtc.h>
29#include <drm/drm_modeset_helper_vtables.h>
30#include <drm/drm_modeset_helper.h>
31
32/*
33 * Drivers that don't allow primary plane scaling may pass this macro in place
34 * of the min/max scale parameters of the update checker function.
35 *
36 * Due to src being in 16.16 fixed point and dest being in integer pixels,
37 * 1<<16 represents no scaling.
38 */
39#define DRM_PLANE_HELPER_NO_SCALING (1<<16)
40
41void drm_primary_helper_destroy(struct drm_plane *plane);
42extern const struct drm_plane_funcs drm_primary_helper_funcs;
43
44#endif
45