mirror of
https://github.com/kunkundi/crossdesk.git
synced 2025-10-26 12:15:34 +08:00
745 lines
23 KiB
C++
745 lines
23 KiB
C++
#include <SDL.h>
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#include <stdio.h>
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#ifdef _WIN32
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// #pragma comment(linker, "/subsystem:\"windows\" /entry:\"mainCRTStartup\"")
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#pragma comment(linker, "/subsystem:\"console\"")
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#include <Winsock2.h>
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#include <iphlpapi.h>
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#elif __APPLE__
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#include <ifaddrs.h>
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#include <net/if_dl.h>
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#include <net/if_types.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#elif __linux__
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#include <net/if.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <unistd.h>
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#endif
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#include <chrono>
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#include <cstring>
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#include <fstream>
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#include <iostream>
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#include <string>
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#include <thread>
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extern "C" {
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#include <libavcodec/avcodec.h>
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#include <libavdevice/avdevice.h>
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#include <libavfilter/avfilter.h>
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#include <libavformat/avformat.h>
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#include <libavutil/imgutils.h>
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#include <libswscale/swscale.h>
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};
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#include "imgui.h"
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#include "imgui_impl_sdl2.h"
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#include "imgui_impl_sdlrenderer2.h"
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#include "log.h"
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#ifdef _WIN32
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#include "screen_capture_wgc.h"
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#elif __linux__
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#include "screen_capture_x11.h"
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#endif
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#include "x.h"
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#define NV12_BUFFER_SIZE 1280 * 720 * 3 / 2
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#ifdef REMOTE_DESK_DEBUG
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#define MOUSE_CONTROL 0
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#else
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#define MOUSE_CONTROL 1
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#endif
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int screen_w = 1280, screen_h = 720;
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const int pixel_w = 1280, pixel_h = 720;
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unsigned char dst_buffer[pixel_w * pixel_h * 3 / 2];
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SDL_Texture *sdlTexture = nullptr;
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SDL_Renderer *sdlRenderer = nullptr;
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SDL_Rect sdlRect;
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SDL_Window *window;
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uint32_t start_time, end_time, elapsed_time;
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uint32_t frame_count = 0;
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int fps = 0;
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std::string window_title = "Remote Desk Client";
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std::string connection_status = "-";
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// Refresh Event
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#define REFRESH_EVENT (SDL_USEREVENT + 1)
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#define QUIT_EVENT (SDL_USEREVENT + 2)
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int thread_exit = 0;
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PeerPtr *peer_server = nullptr;
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PeerPtr *peer_client = nullptr;
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bool joined = false;
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bool received_frame = false;
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static bool connect_button_pressed = false;
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static const char *connect_label = "Connect";
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#ifdef _WIN32
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ScreenCaptureWgc *screen_capture = nullptr;
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#elif __linux__
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ScreenCaptureX11 *screen_capture = nullptr;
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#endif
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char *nv12_buffer = nullptr;
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std::chrono::_V2::system_clock::time_point last_frame_time_;
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typedef enum { mouse = 0, keyboard } ControlType;
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typedef enum { move = 0, left_down, left_up, right_down, right_up } MouseFlag;
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typedef enum { key_down = 0, key_up } KeyFlag;
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typedef struct {
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size_t x;
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size_t y;
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MouseFlag flag;
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} Mouse;
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typedef struct {
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size_t key_value;
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KeyFlag flag;
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} Key;
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typedef struct {
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ControlType type;
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union {
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Mouse m;
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Key k;
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};
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} RemoteAction;
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inline int ProcessMouseKeyEven(SDL_Event &ev) {
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float ratio = 1280.0 / screen_w;
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RemoteAction remote_action;
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if (SDL_KEYDOWN == ev.type) // SDL_KEYUP
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{
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// printf("SDLK_DOWN: %d\n", SDL_KeyCode(ev.key.keysym.sym));
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if (SDLK_DOWN == ev.key.keysym.sym) {
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// printf("SDLK_DOWN \n");
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} else if (SDLK_UP == ev.key.keysym.sym) {
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// printf("SDLK_UP \n");
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} else if (SDLK_LEFT == ev.key.keysym.sym) {
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// printf("SDLK_LEFT \n");
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} else if (SDLK_RIGHT == ev.key.keysym.sym) {
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// printf("SDLK_RIGHT \n");
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}
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} else if (SDL_MOUSEBUTTONDOWN == ev.type) {
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if (SDL_BUTTON_LEFT == ev.button.button) {
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int px = ev.button.x;
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int py = ev.button.y;
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// printf("SDL_MOUSEBUTTONDOWN x, y %d %d \n", px, py);
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remote_action.type = ControlType::mouse;
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remote_action.m.flag = MouseFlag::left_down;
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remote_action.m.x = ev.button.x * ratio;
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remote_action.m.y = ev.button.y * ratio;
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SendData(peer_client, DATA_TYPE::DATA, (const char *)&remote_action,
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sizeof(remote_action));
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} else if (SDL_BUTTON_RIGHT == ev.button.button) {
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int px = ev.button.x;
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int py = ev.button.y;
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// printf("SDL_BUTTON_RIGHT x, y %d %d \n", px, py);
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remote_action.type = ControlType::mouse;
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remote_action.m.flag = MouseFlag::right_down;
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remote_action.m.x = ev.button.x * ratio;
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remote_action.m.y = ev.button.y * ratio;
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SendData(peer_client, DATA_TYPE::DATA, (const char *)&remote_action,
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sizeof(remote_action));
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}
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} else if (SDL_MOUSEBUTTONUP == ev.type) {
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if (SDL_BUTTON_LEFT == ev.button.button) {
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int px = ev.button.x;
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int py = ev.button.y;
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// printf("SDL_MOUSEBUTTONUP x, y %d %d \n", px, py);
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remote_action.type = ControlType::mouse;
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remote_action.m.flag = MouseFlag::left_up;
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remote_action.m.x = ev.button.x * ratio;
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remote_action.m.y = ev.button.y * ratio;
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SendData(peer_client, DATA_TYPE::DATA, (const char *)&remote_action,
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sizeof(remote_action));
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} else if (SDL_BUTTON_RIGHT == ev.button.button) {
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int px = ev.button.x;
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int py = ev.button.y;
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// printf("SDL_MOUSEBUTTONUP x, y %d %d \n", px, py);
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remote_action.type = ControlType::mouse;
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remote_action.m.flag = MouseFlag::right_up;
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remote_action.m.x = ev.button.x * ratio;
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remote_action.m.y = ev.button.y * ratio;
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SendData(peer_client, DATA_TYPE::DATA, (const char *)&remote_action,
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sizeof(remote_action));
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}
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} else if (SDL_MOUSEMOTION == ev.type) {
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int px = ev.motion.x;
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int py = ev.motion.y;
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// printf("SDL_MOUSEMOTION x, y %d %d \n", px, py);
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remote_action.type = ControlType::mouse;
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remote_action.m.flag = MouseFlag::move;
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remote_action.m.x = ev.button.x * ratio;
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remote_action.m.y = ev.button.y * ratio;
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SendData(peer_client, DATA_TYPE::DATA, (const char *)&remote_action,
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sizeof(remote_action));
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} else if (SDL_QUIT == ev.type) {
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SDL_Event event;
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event.type = SDL_QUIT;
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SDL_PushEvent(&event);
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printf("SDL_QUIT\n");
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return 0;
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}
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return 0;
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}
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void ReceiveVideoBuffer(const char *data, size_t size, const char *user_id,
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size_t user_id_size) {
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// std::cout << "Receive: [" << user_id << "] " << std::endl;
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memcpy(dst_buffer, data, size);
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SDL_Event event;
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event.type = REFRESH_EVENT;
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SDL_PushEvent(&event);
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received_frame = true;
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}
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void ReceiveAudioBuffer(const char *data, size_t size, const char *user_id,
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size_t user_id_size) {
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std::cout << "Receive audio, size " << size << ", user [" << user_id << "] "
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<< std::endl;
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}
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void ReceiveDataBuffer(const char *data, size_t size, const char *user_id,
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size_t user_id_size) {
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std::string user(user_id, user_id_size);
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RemoteAction remote_action;
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memcpy(&remote_action, data, sizeof(remote_action));
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// std::cout << "remote_action: " << remote_action.type << " "
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// << remote_action.m.flag << " " << remote_action.m.x << " "
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// << remote_action.m.y << std::endl;
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#ifdef _WIN32
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INPUT ip;
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if (remote_action.type == ControlType::mouse) {
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ip.type = INPUT_MOUSE;
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ip.mi.dx = remote_action.m.x * screen_w / 1280;
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ip.mi.dy = remote_action.m.y * screen_h / 720;
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if (remote_action.m.flag == MouseFlag::left_down) {
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ip.mi.dwFlags = MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_ABSOLUTE;
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} else if (remote_action.m.flag == MouseFlag::left_up) {
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ip.mi.dwFlags = MOUSEEVENTF_LEFTUP | MOUSEEVENTF_ABSOLUTE;
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} else if (remote_action.m.flag == MouseFlag::right_down) {
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ip.mi.dwFlags = MOUSEEVENTF_RIGHTDOWN | MOUSEEVENTF_ABSOLUTE;
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} else if (remote_action.m.flag == MouseFlag::right_up) {
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ip.mi.dwFlags = MOUSEEVENTF_RIGHTUP | MOUSEEVENTF_ABSOLUTE;
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} else {
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ip.mi.dwFlags = MOUSEEVENTF_MOVE;
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}
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ip.mi.mouseData = 0;
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ip.mi.time = 0;
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#if MOUSE_CONTROL
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// Set cursor pos
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SetCursorPos(ip.mi.dx, ip.mi.dy);
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// Send the press
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if (ip.mi.dwFlags != MOUSEEVENTF_MOVE) {
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SendInput(1, &ip, sizeof(INPUT));
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}
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#endif
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// std::cout << "Receive data from [" << user << "], " << ip.type << " "
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// << ip.mi.dwFlags << " " << ip.mi.dx << " " << ip.mi.dy
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// << std::endl;
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}
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#endif
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}
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void ConnectionStatus(ConnectionStatus status) {
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if (ConnectionStatus::Connecting == status) {
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connection_status = "Connecting";
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} else if (ConnectionStatus::Connected == status) {
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connection_status = "Connected";
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} else if (ConnectionStatus::Failed == status) {
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connection_status = "Failed";
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} else if (ConnectionStatus::Closed == status) {
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connection_status = "Closed";
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} else if (ConnectionStatus::IncorrectPassword == status) {
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connection_status = "Incorrect password";
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if (connect_button_pressed) {
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connect_button_pressed = false;
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joined = false;
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connect_label = connect_button_pressed ? "Disconnect" : "Connect";
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}
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}
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}
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std::string GetMac(char *mac_addr) {
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int len = 0;
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#ifdef _WIN32
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IP_ADAPTER_INFO adapterInfo[16];
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DWORD bufferSize = sizeof(adapterInfo);
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DWORD result = GetAdaptersInfo(adapterInfo, &bufferSize);
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if (result == ERROR_SUCCESS) {
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PIP_ADAPTER_INFO adapter = adapterInfo;
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while (adapter) {
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for (UINT i = 0; i < adapter->AddressLength; i++) {
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len += sprintf(mac_addr + len, "%.2X", adapter->Address[i]);
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}
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break;
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}
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}
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#elif __APPLE__
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std::string if_name = "en0";
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struct ifaddrs *addrs;
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struct ifaddrs *cursor;
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const struct sockaddr_dl *dlAddr;
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if (!getifaddrs(&addrs)) {
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cursor = addrs;
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while (cursor != 0) {
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const struct sockaddr_dl *socAddr =
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(const struct sockaddr_dl *)cursor->ifa_addr;
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if ((cursor->ifa_addr->sa_family == AF_LINK) &&
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(socAddr->sdl_type == IFT_ETHER) &&
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strcmp(if_name.c_str(), cursor->ifa_name) == 0) {
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dlAddr = (const struct sockaddr_dl *)cursor->ifa_addr;
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const unsigned char *base =
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(const unsigned char *)&dlAddr->sdl_data[dlAddr->sdl_nlen];
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for (int i = 0; i < dlAddr->sdl_alen; i++) {
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len += sprintf(mac_addr + len, "%.2X", base[i]);
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}
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}
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cursor = cursor->ifa_next;
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}
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freeifaddrs(addrs);
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}
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#elif __linux__
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int sock = socket(AF_INET, SOCK_DGRAM, 0);
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if (sock < 0) {
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return "";
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}
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struct ifreq ifr;
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struct ifconf ifc;
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char buf[1024];
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ifc.ifc_len = sizeof(buf);
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ifc.ifc_buf = buf;
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if (ioctl(sock, SIOCGIFCONF, &ifc) < 0) {
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close(sock);
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return "";
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}
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struct ifreq *it = ifc.ifc_req;
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const struct ifreq *const end = it + (ifc.ifc_len / sizeof(struct ifreq));
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for (; it != end; ++it) {
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std::strcpy(ifr.ifr_name, it->ifr_name);
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if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
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continue;
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}
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if (ifr.ifr_flags & IFF_LOOPBACK) {
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continue;
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}
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if (ioctl(sock, SIOCGIFHWADDR, &ifr) < 0) {
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continue;
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}
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std::string mac_address;
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for (int i = 0; i < 6; ++i) {
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len += sprintf(mac_addr + len, "%.2X", ifr.ifr_hwaddr.sa_data[i] & 0xff);
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}
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break;
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}
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close(sock);
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#endif
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return mac_addr;
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}
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int BGRAToNV12FFmpeg(unsigned char *src_buffer, int width, int height,
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unsigned char *dst_buffer) {
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AVFrame *Input_pFrame = av_frame_alloc();
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AVFrame *Output_pFrame = av_frame_alloc();
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struct SwsContext *img_convert_ctx =
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sws_getContext(width, height, AV_PIX_FMT_BGRA, 1280, 720, AV_PIX_FMT_NV12,
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SWS_FAST_BILINEAR, nullptr, nullptr, nullptr);
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av_image_fill_arrays(Input_pFrame->data, Input_pFrame->linesize, src_buffer,
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AV_PIX_FMT_BGRA, width, height, 1);
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av_image_fill_arrays(Output_pFrame->data, Output_pFrame->linesize, dst_buffer,
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AV_PIX_FMT_NV12, 1280, 720, 1);
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sws_scale(img_convert_ctx, (uint8_t const **)Input_pFrame->data,
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Input_pFrame->linesize, 0, height, Output_pFrame->data,
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Output_pFrame->linesize);
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if (Input_pFrame) av_free(Input_pFrame);
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if (Output_pFrame) av_free(Output_pFrame);
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if (img_convert_ctx) sws_freeContext(img_convert_ctx);
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return 0;
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}
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int main() {
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LOG_INFO("Remote desk");
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std::string default_cfg_path = "../../../../config/config.ini";
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std::ifstream f(default_cfg_path.c_str());
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Params params;
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params.cfg_path = f.good() ? "../../../../config/config.ini" : "config.ini";
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params.on_receive_video_buffer = ReceiveVideoBuffer;
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params.on_receive_audio_buffer = ReceiveAudioBuffer;
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params.on_receive_data_buffer = ReceiveDataBuffer;
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params.on_connection_status = ConnectionStatus;
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std::string transmission_id = "000001";
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char mac_addr[10];
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GetMac(mac_addr);
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peer_server = CreatePeer(¶ms);
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std::string server_user_id = "S-" + std::string(GetMac(mac_addr));
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Init(peer_server, server_user_id.c_str());
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peer_client = CreatePeer(¶ms);
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std::string client_user_id = "C-" + std::string(GetMac(mac_addr));
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Init(peer_client, client_user_id.c_str());
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// Setup SDL
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if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) !=
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0) {
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printf("Error: %s\n", SDL_GetError());
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return -1;
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}
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// From 2.0.18: Enable native IME.
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#ifdef SDL_HINT_IME_SHOW_UI
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SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");
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#endif
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// Create window with SDL_Renderer graphics context
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SDL_WindowFlags window_flags =
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(SDL_WindowFlags)(SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
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window = SDL_CreateWindow("Remote Desk", SDL_WINDOWPOS_CENTERED,
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SDL_WINDOWPOS_CENTERED, screen_w, screen_h,
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window_flags);
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// int new_screen_w = 0;
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// int new_screen_h = 0;
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// SDL_GetWindowSize(window, &new_screen_w, &new_screen_h);
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// if (new_screen_w != screen_w) {
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// screen_w = new_screen_w;
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// screen_h = new_screen_w * 9 / 16;
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// } else if (new_screen_h != screen_h) {
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// screen_w = new_screen_h * 16 / 9;
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// screen_h = new_screen_h;
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// }
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// SDL_SetWindowSize(window, screen_w, screen_h);
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sdlRenderer = SDL_CreateRenderer(
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window, -1, SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED);
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if (sdlRenderer == nullptr) {
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SDL_Log("Error creating SDL_Renderer!");
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return 0;
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}
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Uint32 pixformat = 0;
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pixformat = SDL_PIXELFORMAT_NV12;
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sdlTexture = SDL_CreateTexture(sdlRenderer, pixformat,
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SDL_TEXTUREACCESS_STREAMING, pixel_w, pixel_h);
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// Setup Dear ImGui context
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IMGUI_CHECKVERSION();
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ImGui::CreateContext();
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ImGuiIO &io = ImGui::GetIO();
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io.ConfigFlags |=
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ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
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io.ConfigFlags |=
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ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
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// Setup Dear ImGui style
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ImGui::StyleColorsDark();
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// ImGui::StyleColorsLight();
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// Setup Platform/Renderer backends
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ImGui_ImplSDL2_InitForSDLRenderer(window, sdlRenderer);
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ImGui_ImplSDLRenderer2_Init(sdlRenderer);
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// Our state
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bool show_demo_window = true;
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bool show_another_window = false;
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ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
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// Main loop
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bool done = false;
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while (!done) {
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// Start the Dear ImGui frame
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ImGui_ImplSDLRenderer2_NewFrame();
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ImGui_ImplSDL2_NewFrame();
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ImGui::NewFrame();
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{
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static float f = 0.0f;
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static int counter = 0;
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const ImGuiViewport *main_viewport = ImGui::GetMainViewport();
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ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Once);
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ImGui::SetNextWindowSize(ImVec2(180, 225));
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ImGui::Begin("Menu", nullptr, ImGuiWindowFlags_NoResize);
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{
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ImGui::Text("LOCAL ID: ");
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ImGui::SameLine();
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ImGui::Selectable(mac_addr, false,
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ImGuiSelectableFlags_AllowDoubleClick);
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if (ImGui::IsItemHovered() && ImGui::IsMouseDoubleClicked(0)) {
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ImGui::SetClipboardText(mac_addr);
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}
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ImGui::Spacing();
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ImGui::Text("PASSWORD: ");
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ImGui::SameLine();
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ImGui::SetNextItemWidth(110);
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static char server_password[20] = "";
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ImGui::InputTextWithHint("server_password", "000001", server_password,
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IM_ARRAYSIZE(server_password),
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ImGuiInputTextFlags_AllowTabInput);
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ImGui::Spacing();
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{
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static bool online_button_pressed = false;
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static const char *online_label = "Online";
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if (ImGui::Button(online_label)) {
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std::string user_id = "S-" + std::string(GetMac(mac_addr));
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if (strcmp(online_label, "Online") == 0) {
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CreateConnection(peer_server, mac_addr, server_password);
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nv12_buffer = new char[NV12_BUFFER_SIZE];
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#ifdef _WIN32
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screen_capture = new ScreenCaptureWgc();
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RECORD_DESKTOP_RECT rect;
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rect.left = 0;
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rect.top = 0;
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rect.right = GetSystemMetrics(SM_CXSCREEN);
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rect.bottom = GetSystemMetrics(SM_CYSCREEN);
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last_frame_time_ = std::chrono::high_resolution_clock::now();
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screen_capture->Init(
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rect, 60,
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[](unsigned char *data, int size, int width,
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int height) -> void {
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auto now_time = std::chrono::high_resolution_clock::now();
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std::chrono::duration<double> duration =
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now_time - last_frame_time_;
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auto tc = duration.count() * 1000;
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if (tc >= 0) {
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BGRAToNV12FFmpeg(data, width, height,
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(unsigned char *)nv12_buffer);
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SendData(peer_server, DATA_TYPE::VIDEO,
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(const char *)nv12_buffer, NV12_BUFFER_SIZE);
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// std::cout << "Send" << std::endl;
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last_frame_time_ = now_time;
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}
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});
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screen_capture->Start();
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#elif __linux__
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screen_capture = new ScreenCaptureX11();
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RECORD_DESKTOP_RECT rect;
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rect.left = 0;
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rect.top = 0;
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rect.right = 0;
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rect.bottom = 0;
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last_frame_time_ = std::chrono::high_resolution_clock::now();
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screen_capture->Init(
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rect, 60,
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[](unsigned char *data, int size, int width,
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int height) -> void {
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auto now_time = std::chrono::high_resolution_clock::now();
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std::chrono::duration<double> duration =
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now_time - last_frame_time_;
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auto tc = duration.count() * 1000;
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if (tc >= 0) {
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SendData(peer_server, DATA_TYPE::VIDEO,
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(const char *)nv12_buffer, NV12_BUFFER_SIZE);
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std::cout << "Send" << std::endl;
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last_frame_time_ = now_time;
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}
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});
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screen_capture->Start();
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#endif
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} else {
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LeaveConnection(peer_server);
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}
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online_button_pressed = !online_button_pressed;
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online_label = online_button_pressed ? "Offline" : "Online";
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}
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}
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ImGui::Spacing();
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ImGui::Separator();
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ImGui::Spacing();
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{
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{
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static char remote_id[20] = "";
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if (strcmp(remote_id, "") == 0) {
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strcpy(remote_id, GetMac(mac_addr).c_str());
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}
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ImGui::Text("REMOTE ID:");
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ImGui::SameLine();
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ImGui::SetNextItemWidth(110);
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ImGui::InputTextWithHint("id_buf", "000002", remote_id,
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IM_ARRAYSIZE(remote_id),
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ImGuiInputTextFlags_AllowTabInput);
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ImGui::Spacing();
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ImGui::Text("PASSWORD: ");
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ImGui::SameLine();
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ImGui::SetNextItemWidth(110);
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static char client_password[20] = "";
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ImGui::InputTextWithHint("client_password", "000003",
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client_password,
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IM_ARRAYSIZE(client_password),
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ImGuiInputTextFlags_AllowTabInput);
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if (ImGui::Button(connect_label)) {
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if (strcmp(connect_label, "Connect") == 0 && !joined) {
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std::string user_id = "C-" + std::string(GetMac(mac_addr));
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JoinConnection(peer_client, remote_id, client_password);
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joined = true;
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} else if (strcmp(connect_label, "Disconnect") == 0 && joined) {
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LeaveConnection(peer_client);
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joined = false;
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}
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connect_button_pressed = !connect_button_pressed;
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connect_label = connect_button_pressed ? "Disconnect" : "Connect";
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}
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}
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}
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}
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ImGui::Spacing();
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ImGui::Separator();
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ImGui::Spacing();
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{
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if (ImGui::Button("Fix ratio")) {
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SDL_GetWindowSize(window, &screen_w, &screen_h);
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if (screen_h != screen_w * 9 / 16) {
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screen_w = screen_h * 16 / 9;
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}
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SDL_SetWindowSize(window, screen_w, screen_h);
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}
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}
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ImGui::End();
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}
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// Rendering
|
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ImGui::Render();
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SDL_RenderSetScale(sdlRenderer, io.DisplayFramebufferScale.x,
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io.DisplayFramebufferScale.y);
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SDL_Event event;
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while (SDL_PollEvent(&event)) {
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ImGui_ImplSDL2_ProcessEvent(&event);
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if (event.type == SDL_QUIT) {
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done = true;
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} else if (event.type == SDL_WINDOWEVENT &&
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event.window.event == SDL_WINDOWEVENT_RESIZED) {
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SDL_GetWindowSize(window, &screen_w, &screen_h);
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SDL_SetWindowSize(window, screen_w, screen_h);
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// printf("Resize windows: %dx%d\n", screen_w, screen_h);
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} else if (event.type == SDL_WINDOWEVENT &&
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event.window.event == SDL_WINDOWEVENT_CLOSE &&
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event.window.windowID == SDL_GetWindowID(window)) {
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done = true;
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} else if (event.type == REFRESH_EVENT) {
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sdlRect.x = 0;
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sdlRect.y = 0;
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sdlRect.w = screen_w;
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sdlRect.h = screen_h;
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SDL_UpdateTexture(sdlTexture, NULL, dst_buffer, pixel_w);
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SDL_RenderClear(sdlRenderer);
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SDL_RenderCopy(sdlRenderer, sdlTexture, NULL, &sdlRect);
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} else {
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if (joined) {
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ProcessMouseKeyEven(event);
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}
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}
|
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}
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|
|
if (!joined || !received_frame) {
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|
SDL_RenderClear(sdlRenderer);
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|
SDL_SetRenderDrawColor(
|
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sdlRenderer, (Uint8)(clear_color.x * 0), (Uint8)(clear_color.y * 0),
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(Uint8)(clear_color.z * 0), (Uint8)(clear_color.w * 0));
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}
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|
|
ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData());
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SDL_RenderPresent(sdlRenderer);
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|
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frame_count++;
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end_time = SDL_GetTicks();
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elapsed_time = end_time - start_time;
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if (elapsed_time >= 1000) {
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fps = frame_count / (elapsed_time / 1000);
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frame_count = 0;
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window_title = "Remote Desk Client FPS [" + std::to_string(fps) +
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"] status [" + connection_status + "]";
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// For MacOS, UI frameworks can only be called from the main thread
|
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SDL_SetWindowTitle(window, window_title.c_str());
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start_time = end_time;
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}
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}
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|
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// Cleanup
|
|
ImGui_ImplSDLRenderer2_Shutdown();
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ImGui_ImplSDL2_Shutdown();
|
|
ImGui::DestroyContext();
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|
|
SDL_DestroyRenderer(sdlRenderer);
|
|
SDL_DestroyWindow(window);
|
|
SDL_Quit();
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return 0;
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} |