1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "DrmMode.h"
18
19 #include <cstring>
20
21 #include "DrmDevice.h"
22
23 namespace android {
24
DrmMode(drmModeModeInfoPtr m)25 DrmMode::DrmMode(drmModeModeInfoPtr m)
26 : clock_(m->clock),
27 h_display_(m->hdisplay),
28 h_sync_start_(m->hsync_start),
29 h_sync_end_(m->hsync_end),
30 h_total_(m->htotal),
31 h_skew_(m->hskew),
32 v_display_(m->vdisplay),
33 v_sync_start_(m->vsync_start),
34 v_sync_end_(m->vsync_end),
35 v_total_(m->vtotal),
36 v_scan_(m->vscan),
37 v_refresh_(m->vrefresh),
38 flags_(m->flags),
39 type_(m->type),
40 name_(m->name) {
41 }
42
operator ==(const drmModeModeInfo & m) const43 bool DrmMode::operator==(const drmModeModeInfo &m) const {
44 return clock_ == m.clock && h_display_ == m.hdisplay &&
45 h_sync_start_ == m.hsync_start && h_sync_end_ == m.hsync_end &&
46 h_total_ == m.htotal && h_skew_ == m.hskew &&
47 v_display_ == m.vdisplay && v_sync_start_ == m.vsync_start &&
48 v_sync_end_ == m.vsync_end && v_total_ == m.vtotal &&
49 v_scan_ == m.vscan && flags_ == m.flags && type_ == m.type;
50 }
51
clock() const52 uint32_t DrmMode::clock() const {
53 return clock_;
54 }
55
h_display() const56 uint16_t DrmMode::h_display() const {
57 return h_display_;
58 }
59
h_sync_start() const60 uint16_t DrmMode::h_sync_start() const {
61 return h_sync_start_;
62 }
63
h_sync_end() const64 uint16_t DrmMode::h_sync_end() const {
65 return h_sync_end_;
66 }
67
h_total() const68 uint16_t DrmMode::h_total() const {
69 return h_total_;
70 }
71
h_skew() const72 uint16_t DrmMode::h_skew() const {
73 return h_skew_;
74 }
75
v_display() const76 uint16_t DrmMode::v_display() const {
77 return v_display_;
78 }
79
v_sync_start() const80 uint16_t DrmMode::v_sync_start() const {
81 return v_sync_start_;
82 }
83
v_sync_end() const84 uint16_t DrmMode::v_sync_end() const {
85 return v_sync_end_;
86 }
87
v_total() const88 uint16_t DrmMode::v_total() const {
89 return v_total_;
90 }
91
v_scan() const92 uint16_t DrmMode::v_scan() const {
93 return v_scan_;
94 }
95
v_refresh() const96 float DrmMode::v_refresh() const {
97 if (clock_ == 0) {
98 return v_refresh_;
99 }
100 // Always recalculate refresh to report correct float rate
101 return static_cast<float>(clock_) / (float)(v_total_ * h_total_) * 1000.0F;
102 }
103
flags() const104 uint32_t DrmMode::flags() const {
105 return flags_;
106 }
107
type() const108 uint32_t DrmMode::type() const {
109 return type_;
110 }
111
name() const112 std::string DrmMode::name() const {
113 return name_ + "@" + std::to_string(v_refresh());
114 }
115
CreateModeBlob(const DrmDevice & drm)116 auto DrmMode::CreateModeBlob(const DrmDevice &drm)
117 -> DrmModeUserPropertyBlobUnique {
118 struct drm_mode_modeinfo drm_mode = {
119 .clock = clock_,
120 .hdisplay = h_display_,
121 .hsync_start = h_sync_start_,
122 .hsync_end = h_sync_end_,
123 .htotal = h_total_,
124 .hskew = h_skew_,
125 .vdisplay = v_display_,
126 .vsync_start = v_sync_start_,
127 .vsync_end = v_sync_end_,
128 .vtotal = v_total_,
129 .vscan = v_scan_,
130 .vrefresh = v_refresh_,
131 .flags = flags_,
132 .type = type_,
133 };
134 strncpy(drm_mode.name, name_.c_str(), DRM_DISPLAY_MODE_LEN);
135
136 return drm.RegisterUserPropertyBlob(&drm_mode,
137 sizeof(struct drm_mode_modeinfo));
138 }
139
140 } // namespace android
141