6385b8c162
The size, point and position structs were defined in common.h. Move them to coords.h so that common.h could be used for generic code to be included in all source files.
511 lines
14 KiB
C
511 lines
14 KiB
C
#include "scrcpy.h"
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <libavformat/avformat.h>
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#include <sys/time.h>
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#include <SDL2/SDL.h>
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#ifdef _WIN32
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// not needed here, but winsock2.h must never be included AFTER windows.h
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# include <winsock2.h>
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# include <windows.h>
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#endif
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#include "config.h"
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#include "compat.h"
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#include "controller.h"
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#include "decoder.h"
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#include "device.h"
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#include "events.h"
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#include "file_handler.h"
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#include "fps_counter.h"
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#include "input_manager.h"
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#include "recorder.h"
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#include "screen.h"
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#include "server.h"
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#include "stream.h"
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#include "tiny_xpm.h"
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#include "video_buffer.h"
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#include "util/lock.h"
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#include "util/log.h"
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#include "util/net.h"
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static struct server server;
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static struct screen screen = SCREEN_INITIALIZER;
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static struct fps_counter fps_counter;
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static struct video_buffer video_buffer;
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static struct stream stream;
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static struct decoder decoder;
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static struct recorder recorder;
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static struct controller controller;
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static struct file_handler file_handler;
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static struct input_manager input_manager = {
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.controller = &controller,
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.video_buffer = &video_buffer,
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.screen = &screen,
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.repeat = 0,
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// initialized later
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.prefer_text = false,
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.sdl_shortcut_mods = {
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.data = {0},
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.count = 0,
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},
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};
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#ifdef _WIN32
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BOOL WINAPI windows_ctrl_handler(DWORD ctrl_type) {
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if (ctrl_type == CTRL_C_EVENT) {
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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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return TRUE;
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}
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return FALSE;
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}
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#endif // _WIN32
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// init SDL and set appropriate hints
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static bool
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sdl_init_and_configure(bool display, const char *render_driver,
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bool disable_screensaver) {
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uint32_t flags = display ? SDL_INIT_VIDEO : SDL_INIT_EVENTS;
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if (SDL_Init(flags)) {
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LOGC("Could not initialize SDL: %s", SDL_GetError());
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return false;
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}
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atexit(SDL_Quit);
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#ifdef _WIN32
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// Clean up properly on Ctrl+C on Windows
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bool ok = SetConsoleCtrlHandler(windows_ctrl_handler, TRUE);
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if (!ok) {
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LOGW("Could not set Ctrl+C handler");
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}
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#endif // _WIN32
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if (!display) {
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return true;
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}
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if (render_driver && !SDL_SetHint(SDL_HINT_RENDER_DRIVER, render_driver)) {
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LOGW("Could not set render driver");
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}
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// Linear filtering
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if (!SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1")) {
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LOGW("Could not enable linear filtering");
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}
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#ifdef SCRCPY_SDL_HAS_HINT_MOUSE_FOCUS_CLICKTHROUGH
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// Handle a click to gain focus as any other click
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if (!SDL_SetHint(SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, "1")) {
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LOGW("Could not enable mouse focus clickthrough");
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}
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#endif
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#ifdef SCRCPY_SDL_HAS_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR
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// Disable compositor bypassing on X11
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if (!SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0")) {
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LOGW("Could not disable X11 compositor bypass");
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}
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#endif
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// Do not minimize on focus loss
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if (!SDL_SetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS, "0")) {
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LOGW("Could not disable minimize on focus loss");
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}
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if (disable_screensaver) {
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LOGD("Screensaver disabled");
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SDL_DisableScreenSaver();
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} else {
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LOGD("Screensaver enabled");
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SDL_EnableScreenSaver();
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}
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return true;
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}
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#if defined(__APPLE__) || defined(__WINDOWS__)
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# define CONTINUOUS_RESIZING_WORKAROUND
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#endif
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#ifdef CONTINUOUS_RESIZING_WORKAROUND
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// On Windows and MacOS, resizing blocks the event loop, so resizing events are
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// not triggered. As a workaround, handle them in an event handler.
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//
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// <https://bugzilla.libsdl.org/show_bug.cgi?id=2077>
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// <https://stackoverflow.com/a/40693139/1987178>
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static int
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event_watcher(void *data, SDL_Event *event) {
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(void) data;
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if (event->type == SDL_WINDOWEVENT
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&& event->window.event == SDL_WINDOWEVENT_RESIZED) {
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// In practice, it seems to always be called from the same thread in
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// that specific case. Anyway, it's just a workaround.
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screen_render(&screen, true);
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}
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return 0;
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}
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#endif
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static bool
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is_apk(const char *file) {
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const char *ext = strrchr(file, '.');
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return ext && !strcmp(ext, ".apk");
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}
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enum event_result {
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EVENT_RESULT_CONTINUE,
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EVENT_RESULT_STOPPED_BY_USER,
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EVENT_RESULT_STOPPED_BY_EOS,
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};
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static enum event_result
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handle_event(SDL_Event *event, const struct scrcpy_options *options) {
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switch (event->type) {
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case EVENT_STREAM_STOPPED:
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LOGD("Video stream stopped");
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return EVENT_RESULT_STOPPED_BY_EOS;
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case SDL_QUIT:
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LOGD("User requested to quit");
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return EVENT_RESULT_STOPPED_BY_USER;
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case EVENT_NEW_FRAME:
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if (!screen.has_frame) {
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screen.has_frame = true;
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// this is the very first frame, show the window
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screen_show_window(&screen);
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}
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if (!screen_update_frame(&screen, &video_buffer)) {
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return EVENT_RESULT_CONTINUE;
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}
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break;
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case SDL_WINDOWEVENT:
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screen_handle_window_event(&screen, &event->window);
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break;
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case SDL_TEXTINPUT:
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if (!options->control) {
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break;
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}
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input_manager_process_text_input(&input_manager, &event->text);
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break;
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case SDL_KEYDOWN:
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case SDL_KEYUP:
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// some key events do not interact with the device, so process the
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// event even if control is disabled
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input_manager_process_key(&input_manager, &event->key);
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break;
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case SDL_MOUSEMOTION:
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if (!options->control) {
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break;
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}
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input_manager_process_mouse_motion(&input_manager, &event->motion);
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break;
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case SDL_MOUSEWHEEL:
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if (!options->control) {
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break;
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}
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input_manager_process_mouse_wheel(&input_manager, &event->wheel);
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break;
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case SDL_MOUSEBUTTONDOWN:
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case SDL_MOUSEBUTTONUP:
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// some mouse events do not interact with the device, so process
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// the event even if control is disabled
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input_manager_process_mouse_button(&input_manager, &event->button);
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break;
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case SDL_FINGERMOTION:
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case SDL_FINGERDOWN:
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case SDL_FINGERUP:
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input_manager_process_touch(&input_manager, &event->tfinger);
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break;
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case SDL_DROPFILE: {
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if (!options->control) {
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break;
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}
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file_handler_action_t action;
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if (is_apk(event->drop.file)) {
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action = ACTION_INSTALL_APK;
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} else {
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action = ACTION_PUSH_FILE;
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}
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file_handler_request(&file_handler, action, event->drop.file);
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break;
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}
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}
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return EVENT_RESULT_CONTINUE;
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}
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static bool
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event_loop(const struct scrcpy_options *options) {
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#ifdef CONTINUOUS_RESIZING_WORKAROUND
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if (options->display) {
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SDL_AddEventWatch(event_watcher, NULL);
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}
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#endif
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SDL_Event event;
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while (SDL_WaitEvent(&event)) {
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enum event_result result = handle_event(&event, options);
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switch (result) {
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case EVENT_RESULT_STOPPED_BY_USER:
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return true;
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case EVENT_RESULT_STOPPED_BY_EOS:
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LOGW("Device disconnected");
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return false;
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case EVENT_RESULT_CONTINUE:
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break;
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}
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}
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return false;
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}
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static SDL_LogPriority
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sdl_priority_from_av_level(int level) {
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switch (level) {
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case AV_LOG_PANIC:
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case AV_LOG_FATAL:
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return SDL_LOG_PRIORITY_CRITICAL;
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case AV_LOG_ERROR:
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return SDL_LOG_PRIORITY_ERROR;
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case AV_LOG_WARNING:
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return SDL_LOG_PRIORITY_WARN;
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case AV_LOG_INFO:
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return SDL_LOG_PRIORITY_INFO;
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}
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// do not forward others, which are too verbose
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return 0;
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}
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static void
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av_log_callback(void *avcl, int level, const char *fmt, va_list vl) {
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(void) avcl;
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SDL_LogPriority priority = sdl_priority_from_av_level(level);
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if (priority == 0) {
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return;
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}
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char *local_fmt = SDL_malloc(strlen(fmt) + 10);
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if (!local_fmt) {
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LOGC("Could not allocate string");
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return;
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}
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// strcpy is safe here, the destination is large enough
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strcpy(local_fmt, "[FFmpeg] ");
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strcpy(local_fmt + 9, fmt);
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SDL_LogMessageV(SDL_LOG_CATEGORY_VIDEO, priority, local_fmt, vl);
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SDL_free(local_fmt);
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}
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bool
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scrcpy(const struct scrcpy_options *options) {
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if (!server_init(&server)) {
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return false;
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}
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bool ret = false;
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bool server_started = false;
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bool fps_counter_initialized = false;
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bool video_buffer_initialized = false;
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bool file_handler_initialized = false;
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bool recorder_initialized = false;
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bool stream_started = false;
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bool controller_initialized = false;
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bool controller_started = false;
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bool record = !!options->record_filename;
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struct server_params params = {
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.log_level = options->log_level,
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.crop = options->crop,
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.port_range = options->port_range,
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.max_size = options->max_size,
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.bit_rate = options->bit_rate,
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.max_fps = options->max_fps,
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.lock_video_orientation = options->lock_video_orientation,
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.control = options->control,
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.display_id = options->display_id,
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.show_touches = options->show_touches,
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.stay_awake = options->stay_awake,
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.codec_options = options->codec_options,
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.encoder_name = options->encoder_name,
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.force_adb_forward = options->force_adb_forward,
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};
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if (!server_start(&server, options->serial, ¶ms)) {
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goto end;
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}
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server_started = true;
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if (!sdl_init_and_configure(options->display, options->render_driver,
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options->disable_screensaver)) {
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goto end;
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}
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if (!server_connect_to(&server)) {
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goto end;
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}
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char device_name[DEVICE_NAME_FIELD_LENGTH];
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struct size frame_size;
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// screenrecord does not send frames when the screen content does not
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// change therefore, we transmit the screen size before the video stream,
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// to be able to init the window immediately
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if (!device_read_info(server.video_socket, device_name, &frame_size)) {
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goto end;
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}
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struct decoder *dec = NULL;
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if (options->display) {
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if (!fps_counter_init(&fps_counter)) {
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goto end;
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}
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fps_counter_initialized = true;
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if (!video_buffer_init(&video_buffer, &fps_counter,
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options->render_expired_frames)) {
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goto end;
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}
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video_buffer_initialized = true;
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if (options->control) {
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if (!file_handler_init(&file_handler, server.serial,
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options->push_target)) {
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goto end;
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}
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file_handler_initialized = true;
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}
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decoder_init(&decoder, &video_buffer);
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dec = &decoder;
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}
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struct recorder *rec = NULL;
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if (record) {
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if (!recorder_init(&recorder,
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options->record_filename,
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options->record_format,
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frame_size)) {
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goto end;
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}
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rec = &recorder;
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recorder_initialized = true;
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}
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av_log_set_callback(av_log_callback);
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stream_init(&stream, server.video_socket, dec, rec);
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// now we consumed the header values, the socket receives the video stream
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// start the stream
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if (!stream_start(&stream)) {
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goto end;
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}
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stream_started = true;
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if (options->display) {
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if (options->control) {
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if (!controller_init(&controller, server.control_socket)) {
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goto end;
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}
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controller_initialized = true;
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if (!controller_start(&controller)) {
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goto end;
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}
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controller_started = true;
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}
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const char *window_title =
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options->window_title ? options->window_title : device_name;
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if (!screen_init_rendering(&screen, window_title, frame_size,
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options->always_on_top, options->window_x,
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options->window_y, options->window_width,
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options->window_height,
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options->window_borderless,
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options->rotation, options->mipmaps)) {
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goto end;
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}
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if (options->turn_screen_off) {
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struct control_msg msg;
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msg.type = CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE;
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msg.set_screen_power_mode.mode = SCREEN_POWER_MODE_OFF;
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if (!controller_push_msg(&controller, &msg)) {
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LOGW("Could not request 'set screen power mode'");
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}
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}
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if (options->fullscreen) {
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screen_switch_fullscreen(&screen);
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}
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}
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input_manager_init(&input_manager, options);
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ret = event_loop(options);
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LOGD("quit...");
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screen_destroy(&screen);
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end:
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// stop stream and controller so that they don't continue once their socket
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// is shutdown
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if (stream_started) {
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stream_stop(&stream);
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}
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if (controller_started) {
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controller_stop(&controller);
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}
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if (file_handler_initialized) {
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file_handler_stop(&file_handler);
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}
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if (fps_counter_initialized) {
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fps_counter_interrupt(&fps_counter);
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}
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if (server_started) {
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// shutdown the sockets and kill the server
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server_stop(&server);
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}
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// now that the sockets are shutdown, the stream and controller are
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// interrupted, we can join them
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if (stream_started) {
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stream_join(&stream);
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}
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if (controller_started) {
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controller_join(&controller);
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}
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if (controller_initialized) {
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controller_destroy(&controller);
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}
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if (recorder_initialized) {
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recorder_destroy(&recorder);
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}
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if (file_handler_initialized) {
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file_handler_join(&file_handler);
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file_handler_destroy(&file_handler);
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}
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if (video_buffer_initialized) {
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video_buffer_destroy(&video_buffer);
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}
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if (fps_counter_initialized) {
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fps_counter_join(&fps_counter);
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fps_counter_destroy(&fps_counter);
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}
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server_destroy(&server);
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return ret;
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}
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