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scrcpy/app/src/controller.h

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Implement keyboard/mouse control To control the device from the computer: - retrieve mouse and keyboard SDL events; - convert them to Android events; - serialize them; - send them on the same socket used by the video stream (but in the opposite direction); - deserialize the events on the Android side; - inject them using the InputManager.
2017-12-14 11:38:44 +01:00
#ifndef CONTROL_H
#define CONTROL_H
Separate multi-words filenames by '_' Rename foobar.ext to foo_bar.ext. <https://github.com/Genymobile/scrcpy/pull/226#discussion_r209454865>
2018-08-15 17:01:54 +02:00
#include "control_event.h"
Implement keyboard/mouse control To control the device from the computer: - retrieve mouse and keyboard SDL events; - convert them to Android events; - serialize them; - send them on the same socket used by the video stream (but in the opposite direction); - deserialize the events on the Android side; - inject them using the InputManager.
2017-12-14 11:38:44 +01:00
#include <SDL2/SDL_mutex.h>
#include <SDL2/SDL_stdinc.h>
Replace SDL_net by custom implementation SDL_net is not very suitable for scrcpy. For example, SDLNet_TCP_Accept() is non-blocking, so we have to wrap it by calling many SDL_Net-specific functions to make it blocking. But above all, SDLNet_TCP_Open() is a server socket only when no IP is provided; otherwise, it's a client socket. Therefore, it is not possible to create a server socket bound to localhost, so it accepts connections from anywhere. This is a problem for scrcpy, because on start, the application listens for nearly 1 second until it accepts the first connection, supposedly from the device. If someone on the local network manages to connect to the server socket first, then they can stream arbitrary H.264 video. This may be troublesome, for example during a public presentation ;-) Provide our own simplified API (net.h) instead, implemented for the different platforms.
2018-02-15 22:59:21 +01:00
#include <SDL2/SDL_thread.h>
#include "net.h"
Implement keyboard/mouse control To control the device from the computer: - retrieve mouse and keyboard SDL events; - convert them to Android events; - serialize them; - send them on the same socket used by the video stream (but in the opposite direction); - deserialize the events on the Android side; - inject them using the InputManager.
2017-12-14 11:38:44 +01:00
struct controller {
Replace SDL_net by custom implementation SDL_net is not very suitable for scrcpy. For example, SDLNet_TCP_Accept() is non-blocking, so we have to wrap it by calling many SDL_Net-specific functions to make it blocking. But above all, SDLNet_TCP_Open() is a server socket only when no IP is provided; otherwise, it's a client socket. Therefore, it is not possible to create a server socket bound to localhost, so it accepts connections from anywhere. This is a problem for scrcpy, because on start, the application listens for nearly 1 second until it accepts the first connection, supposedly from the device. If someone on the local network manages to connect to the server socket first, then they can stream arbitrary H.264 video. This may be troublesome, for example during a public presentation ;-) Provide our own simplified API (net.h) instead, implemented for the different platforms.
2018-02-15 22:59:21 +01:00
socket_t video_socket;
Implement keyboard/mouse control To control the device from the computer: - retrieve mouse and keyboard SDL events; - convert them to Android events; - serialize them; - send them on the same socket used by the video stream (but in the opposite direction); - deserialize the events on the Android side; - inject them using the InputManager.
2017-12-14 11:38:44 +01:00
SDL_Thread *thread;
SDL_mutex *mutex;
SDL_cond *event_cond;
SDL_bool stopped;
struct control_event_queue queue;
};
Update code style Limit source code to 80 chars, and declare functions return type and modifiers on a separate line. This allows to avoid very long lines, and all function names are aligned. (We do this on VLC, and I like it.)
2019-03-02 20:09:56 +01:00
SDL_bool
controller_init(struct controller *controller, socket_t video_socket);
Implement keyboard/mouse control To control the device from the computer: - retrieve mouse and keyboard SDL events; - convert them to Android events; - serialize them; - send them on the same socket used by the video stream (but in the opposite direction); - deserialize the events on the Android side; - inject them using the InputManager.
2017-12-14 11:38:44 +01:00
Update code style Limit source code to 80 chars, and declare functions return type and modifiers on a separate line. This allows to avoid very long lines, and all function names are aligned. (We do this on VLC, and I like it.)
2019-03-02 20:09:56 +01:00
void
controller_destroy(struct controller *controller);
SDL_bool
controller_start(struct controller *controller);
void
controller_stop(struct controller *controller);
void
controller_join(struct controller *controller);
Implement keyboard/mouse control To control the device from the computer: - retrieve mouse and keyboard SDL events; - convert them to Android events; - serialize them; - send them on the same socket used by the video stream (but in the opposite direction); - deserialize the events on the Android side; - inject them using the InputManager.
2017-12-14 11:38:44 +01:00
// expose simple API to hide control_event_queue
Update code style Limit source code to 80 chars, and declare functions return type and modifiers on a separate line. This allows to avoid very long lines, and all function names are aligned. (We do this on VLC, and I like it.)
2019-03-02 20:09:56 +01:00
SDL_bool
controller_push_event(struct controller *controller,
const struct control_event *event);
Implement keyboard/mouse control To control the device from the computer: - retrieve mouse and keyboard SDL events; - convert them to Android events; - serialize them; - send them on the same socket used by the video stream (but in the opposite direction); - deserialize the events on the Android side; - inject them using the InputManager.
2017-12-14 11:38:44 +01:00
#endif
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