Gitiles
Code Review Sign In
review.shift-gmbh.com / SHIFTPHONES / mainline / linux / 3cb9ae4fd82ebc9759bc59998c88c385d35496fe / . / include / drm / drm_plane_helper.h
blob: fa60d19f91c0e066adac15e39cc28a3fd850db1b [file] [log] [blame]
Matt Roperc103d1c2014-04-01 15:22:35 -0700[diff] [blame]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
Matt Roper7daf8d52014-05-29 08:06:52 -0700[diff] [blame]27#include <drm/drm_rect.h>
Daniel Vetter3cb9ae42014-10-29 10:03:57 +0100[diff] [blame^]28#include <drm/drm_crtc.h>
Matt Roper7daf8d52014-05-29 08:06:52 -0700[diff] [blame]29
30/*
31 * Drivers that don't allow primary plane scaling may pass this macro in place
32 * of the min/max scale parameters of the update checker function.
33 *
34 * Due to src being in 16.16 fixed point and dest being in integer pixels,
35 * 1<<16 represents no scaling.
36 */
37#define DRM_PLANE_HELPER_NO_SCALING (1<<16)
38
Matt Roperc103d1c2014-04-01 15:22:35 -0700[diff] [blame]39/**
40 * DOC: plane helpers
41 *
42 * Helper functions to assist with creation and handling of CRTC primary
43 * planes.
44 */
45
Daniel Vetter3cb9ae42014-10-29 10:03:57 +0100[diff] [blame^]46extern int drm_crtc_init(struct drm_device *dev,
47 struct drm_crtc *crtc,
48 const struct drm_crtc_funcs *funcs);
49
Matt Roper7daf8d52014-05-29 08:06:52 -0700[diff] [blame]50extern int drm_plane_helper_check_update(struct drm_plane *plane,
51 struct drm_crtc *crtc,
52 struct drm_framebuffer *fb,
53 struct drm_rect *src,
54 struct drm_rect *dest,
55 const struct drm_rect *clip,
56 int min_scale,
57 int max_scale,
58 bool can_position,
59 bool can_update_disabled,
60 bool *visible);
Matt Roperc103d1c2014-04-01 15:22:35 -0700[diff] [blame]61extern int drm_primary_helper_update(struct drm_plane *plane,
62 struct drm_crtc *crtc,
63 struct drm_framebuffer *fb,
64 int crtc_x, int crtc_y,
65 unsigned int crtc_w, unsigned int crtc_h,
66 uint32_t src_x, uint32_t src_y,
67 uint32_t src_w, uint32_t src_h);
68extern int drm_primary_helper_disable(struct drm_plane *plane);
69extern void drm_primary_helper_destroy(struct drm_plane *plane);
70extern const struct drm_plane_funcs drm_primary_helper_funcs;
71extern struct drm_plane *drm_primary_helper_create_plane(struct drm_device *dev,
Thierry Redingf220e622014-05-13 12:47:42 +0200[diff] [blame]72 const uint32_t *formats,
Matt Roperc103d1c2014-04-01 15:22:35 -0700[diff] [blame]73 int num_formats);
74
75
76#endif