1/*
2 * Copyright (c) 2013 The Linux Foundation. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *    * Redistributions of source code must retain the above copyright
8 *      notice, this list of conditions and the following disclaimer.
9 *    * Redistributions in binary form must reproduce the above
10 *      copyright notice, this list of conditions and the following
11 *      disclaimer in the documentation and/or other materials provided
12 *      with the distribution.
13 *    * Neither the name of The Linux Foundation. nor the names of its
14 *      contributors may be used to endorse or promote products derived
15 *      from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29#include <gralloc_priv.h>
30#include <qdMetaData.h>
31#include <mdp_version.h>
32#include <hardware/hwcomposer.h>
33
34// This header is for clients to use to set/get global display configuration
35// The functions in this header run in the client process and wherever necessary
36// do a binder call to HWC to get/set data.
37// Only primary and external displays are supported here.
38// WiFi/virtual displays are not supported.
39
40namespace qdutils {
41
42// Use this enum to specify the dpy parameters where needed
43enum {
44    DISPLAY_PRIMARY = 0,
45    DISPLAY_EXTERNAL,
46};
47
48// Display Attributes that are available to clients of this library
49// Not to be confused with a similar struct in hwc_utils (in the hwc namespace)
50struct DisplayAttributes_t {
51    uint32_t vsync_period; //nanoseconds
52    uint32_t xres;
53    uint32_t yres;
54    float xdpi;
55    float ydpi;
56    char panel_type;
57};
58
59// Check if external display is connected. Useful to check before making
60// calls for external displays
61// Returns 1 if connected, 0 if disconnected, negative values on errors
62int isExternalConnected(void);
63
64// Get display vsync period which is in nanoseconds
65// i.e vsync_period = 1000000000l / fps
66// Returns 0 on success, negative values on errors
67int getDisplayAttributes(int dpy, DisplayAttributes_t& dpyattr);
68
69// Set HSIC data on a given display ID
70// Returns 0 on success, negative values on errors
71int setHSIC(int dpy, const HSICData_t& hsic_data);
72
73// get the active visible region for the display
74// Returns 0 on success, negative values on errors
75int getDisplayVisibleRegion(int dpy, hwc_rect_t &rect);
76}; //namespace
77