1 /*
2 * Copyright (c) 2016-2017, 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 <utils/constants.h>
30 #include <utils/debug.h>
31 #include "hwc_callbacks.h"
32
33 #define __CLASS__ "HWCCallbacks"
34
35 namespace sdm {
36
Hotplug(hwc2_display_t display,HWC2::Connection state)37 HWC2::Error HWCCallbacks::Hotplug(hwc2_display_t display, HWC2::Connection state) {
38 std::lock_guard<std::mutex> hotplug_lock(hotplug_mutex_);
39 if (!hotplug_) {
40 return HWC2::Error::NoResources;
41 }
42 hotplug_(hotplug_data_, display, INT32(state));
43 return HWC2::Error::None;
44 }
45
Refresh(hwc2_display_t display)46 HWC2::Error HWCCallbacks::Refresh(hwc2_display_t display) {
47 std::lock_guard<std::mutex> refresh_lock(refresh_mutex_);
48 if (!refresh_) {
49 return HWC2::Error::NoResources;
50 }
51 refresh_(refresh_data_, display);
52 return HWC2::Error::None;
53 }
54
Vsync(hwc2_display_t display,int64_t timestamp)55 HWC2::Error HWCCallbacks::Vsync(hwc2_display_t display, int64_t timestamp) {
56 std::lock_guard<std::mutex> vsync_lock(vsync_mutex_);
57 if (!vsync_) {
58 return HWC2::Error::NoResources;
59 }
60 DTRACE_SCOPED();
61 vsync_(vsync_data_, display, timestamp);
62 return HWC2::Error::None;
63 }
64
Register(HWC2::Callback descriptor,hwc2_callback_data_t callback_data,hwc2_function_pointer_t pointer)65 HWC2::Error HWCCallbacks::Register(HWC2::Callback descriptor, hwc2_callback_data_t callback_data,
66 hwc2_function_pointer_t pointer) {
67 switch (descriptor) {
68 case HWC2::Callback::Hotplug: {
69 std::lock_guard<std::mutex> hotplug_lock(hotplug_mutex_);
70 hotplug_data_ = callback_data;
71 hotplug_ = reinterpret_cast<HWC2_PFN_HOTPLUG>(pointer);
72 } break;
73 case HWC2::Callback::Refresh: {
74 std::lock_guard<std::mutex> refresh_lock(refresh_mutex_);
75 refresh_data_ = callback_data;
76 refresh_ = reinterpret_cast<HWC2_PFN_REFRESH>(pointer);
77 } break;
78 case HWC2::Callback::Vsync: {
79 std::lock_guard<std::mutex> vsync_lock(vsync_mutex_);
80 vsync_data_ = callback_data;
81 vsync_ = reinterpret_cast<HWC2_PFN_VSYNC>(pointer);
82 } break;
83 default:
84 return HWC2::Error::BadParameter;
85 }
86 return HWC2::Error::None;
87 }
88
89 } // namespace sdm
90