1 #pragma once 2 3 /* 4 * Copyright (C) 2017 The Android Open Source Project 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 #include <array> 20 #include <cstdint> 21 #include <utility> 22 #include <vector> 23 24 #include "common/libs/utils/size_utils.h" 25 #include "common/libs/tcp_socket/tcp_socket.h" 26 #include "common/vsoc/lib/screen_region_view.h" 27 #include "host/libs/config/cuttlefish_config.h" 28 29 namespace cvd { 30 namespace vnc { 31 32 // TODO(haining) when the hwcomposer gives a sequence number type, use that 33 // instead. It might just work to replace this class with a type alias 34 // using StripeSeqNumber = whatever_the_hwcomposer_uses; 35 class StripeSeqNumber { 36 public: 37 StripeSeqNumber() = default; StripeSeqNumber(std::uint64_t t)38 explicit StripeSeqNumber(std::uint64_t t) : t_{t} {} 39 bool operator<(const StripeSeqNumber& other) const { return t_ < other.t_; } 40 41 bool operator<=(const StripeSeqNumber& other) const { return t_ <= other.t_; } 42 43 private: 44 std::uint64_t t_{}; 45 }; 46 47 constexpr int32_t kJpegMaxQualityEncoding = -23; 48 constexpr int32_t kJpegMinQualityEncoding = -32; 49 50 enum class ScreenOrientation { Portrait, Landscape }; 51 constexpr int kNumOrientations = 2; 52 53 struct Stripe { 54 int index = -1; 55 std::uint64_t frame_id{}; 56 std::uint16_t x{}; 57 std::uint16_t y{}; 58 std::uint16_t width{}; 59 std::uint16_t stride{}; 60 std::uint16_t height{}; 61 Message raw_data{}; 62 Message jpeg_data{}; 63 StripeSeqNumber seq_number{}; 64 ScreenOrientation orientation{}; 65 }; 66 BytesPerPixel()67inline constexpr int BytesPerPixel() { 68 return sizeof(vsoc::screen::ScreenRegionView::Pixel); 69 } 70 71 // The width of the screen regardless of orientation. Does not change. ActualScreenWidth()72inline int ActualScreenWidth() { 73 return vsoc::CuttlefishConfig::Get()->x_res(); 74 } 75 76 // The length of the screen stride regardless of orientation. Does not change. ActualScreenStride()77inline int ActualScreenStride() { 78 return AlignToPowerOf2(ActualScreenWidth() * BytesPerPixel(), 4); 79 } 80 81 // The height of the screen regardless of orientation. Does not change. ActualScreenHeight()82inline int ActualScreenHeight() { 83 return vsoc::CuttlefishConfig::Get()->y_res(); 84 } 85 ScreenSizeInBytes()86inline int ScreenSizeInBytes() { 87 return ActualScreenWidth() * ActualScreenHeight() * BytesPerPixel(); 88 } 89 90 } // namespace vnc 91 } // namespace cvd 92