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 #pragma once 18 19 #include <xf86drmMode.h> 20 21 #include <cstdint> 22 #include <cstdio> 23 #include <string> 24 25 #include "DrmUnique.h" 26 27 namespace android { 28 29 class DrmDevice; 30 31 class DrmMode { 32 public: 33 DrmMode() = default; 34 explicit DrmMode(drmModeModeInfoPtr m); 35 36 bool operator==(const drmModeModeInfo &m) const; 37 38 bool SameSize(const DrmMode &mode) const; 39 GetRawMode()40 auto &GetRawMode() const { 41 return mode_; 42 } 43 GetVRefresh()44 auto GetVRefresh() const { 45 if (mode_.clock == 0) { 46 return float(mode_.vrefresh); 47 } 48 // Always recalculate refresh to report correct float rate 49 return static_cast<float>(mode_.clock) / 50 (float)(mode_.vtotal * mode_.htotal) * 1000.0F; 51 } 52 GetVSyncPeriodNs()53 auto GetVSyncPeriodNs() const { 54 static const int kNanosecondsPerSecond = 1E9; 55 return static_cast<int32_t>(kNanosecondsPerSecond * 56 double(1 / GetVRefresh())); 57 } 58 GetName()59 auto GetName() const { 60 return std::string(mode_.name) + "@" + std::to_string(GetVRefresh()); 61 } 62 63 auto CreateModeBlob(const DrmDevice &drm) -> DrmModeUserPropertyBlobUnique; 64 65 private: 66 drmModeModeInfo mode_; 67 }; 68 } // namespace android 69