mirror of
https://github.com/Genymobile/scrcpy.git
synced 2026-04-21 01:33:36 +00:00
6f0c9eba9b
This allows to handle HID open/close reports at the same place as HID input reports (in the HID layer). This will be especially useful to manage HID gamepads, to avoid implementing one part in the HID layer and another part in the gamepad processor implementation. PR #5270 <https://github.com/Genymobile/scrcpy/pull/5270>
53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
#ifndef SC_HID_KEYBOARD_H
|
|
#define SC_HID_KEYBOARD_H
|
|
|
|
#include "common.h"
|
|
|
|
#include <stdbool.h>
|
|
|
|
#include "hid/hid_event.h"
|
|
#include "input_events.h"
|
|
|
|
// See "SDL2/SDL_scancode.h".
|
|
// Maybe SDL_Keycode is used by most people, but SDL_Scancode is taken from USB
|
|
// HID protocol.
|
|
// 0x65 is Application, typically AT-101 Keyboard ends here.
|
|
#define SC_HID_KEYBOARD_KEYS 0x66
|
|
|
|
#define SC_HID_ID_KEYBOARD 1
|
|
|
|
/**
|
|
* HID keyboard events are sequence-based, every time keyboard state changes
|
|
* it sends an array of currently pressed keys, the host is responsible for
|
|
* compare events and determine which key becomes pressed and which key becomes
|
|
* released. In order to convert SDL_KeyboardEvent to HID events, we first use
|
|
* an array of keys to save each keys' state. And when a SDL_KeyboardEvent was
|
|
* emitted, we updated our state, and then we use a loop to generate HID
|
|
* events. The sequence of array elements is unimportant and when too much keys
|
|
* pressed at the same time (more than report count), we should generate
|
|
* phantom state. Don't forget that modifiers should be updated too, even for
|
|
* phantom state.
|
|
*/
|
|
struct sc_hid_keyboard {
|
|
bool keys[SC_HID_KEYBOARD_KEYS];
|
|
};
|
|
|
|
void
|
|
sc_hid_keyboard_init(struct sc_hid_keyboard *hid);
|
|
|
|
void
|
|
sc_hid_keyboard_generate_open(struct sc_hid_open *hid_open);
|
|
|
|
void
|
|
sc_hid_keyboard_generate_close(struct sc_hid_close *hid_close);
|
|
|
|
bool
|
|
sc_hid_keyboard_generate_input_from_key(struct sc_hid_keyboard *hid,
|
|
struct sc_hid_input *hid_input,
|
|
const struct sc_key_event *event);
|
|
|
|
bool
|
|
sc_hid_keyboard_generate_input_from_mods(struct sc_hid_input *hid_input,
|
|
uint16_t mods_state);
|
|
|
|
#endif
|