SDL_evdev.c
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#ifdef SDL_INPUT_LINUXEV
/* This is based on the linux joystick driver */
/* References: https://www.kernel.org/doc/Documentation/input/input.txt
* https://www.kernel.org/doc/Documentation/input/event-codes.txt
* /usr/include/linux/input.h
* The evtest application is also useful to debug the protocol
*/
#include "SDL_evdev.h"
#include "SDL_evdev_kbd.h"
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/input.h>
#include "SDL.h"
#include "SDL_assert.h"
#include "SDL_endian.h"
#include "SDL_scancode.h"
#include "../../events/SDL_events_c.h"
#include "../../events/scancodes_linux.h" /* adds linux_scancode_table */
#include "../../core/linux/SDL_udev.h"
/* These are not defined in older Linux kernel headers */
#ifndef SYN_DROPPED
#define SYN_DROPPED 3
#endif
#ifndef ABS_MT_SLOT
#define ABS_MT_SLOT 0x2f
#define ABS_MT_POSITION_X 0x35
#define ABS_MT_POSITION_Y 0x36
#define ABS_MT_TRACKING_ID 0x39
#endif
typedef struct SDL_evdevlist_item
{
char *path;
int fd;
/* TODO: use this for every device, not just touchscreen */
int out_of_sync;
/* TODO: expand on this to have data for every possible class (mouse,
keyboard, touchpad, etc.). Also there's probably some things in here we
can pull out to the SDL_evdevlist_item i.e. name */
int is_touchscreen;
struct {
char* name;
int min_x, max_x, range_x;
int min_y, max_y, range_y;
int max_slots;
int current_slot;
struct {
enum {
EVDEV_TOUCH_SLOTDELTA_NONE = 0,
EVDEV_TOUCH_SLOTDELTA_DOWN,
EVDEV_TOUCH_SLOTDELTA_UP,
EVDEV_TOUCH_SLOTDELTA_MOVE
} delta;
int tracking_id;
int x, y;
} * slots;
} * touchscreen_data;
struct SDL_evdevlist_item *next;
} SDL_evdevlist_item;
typedef struct SDL_EVDEV_PrivateData
{
int ref_count;
int num_devices;
SDL_evdevlist_item *first;
SDL_evdevlist_item *last;
SDL_EVDEV_keyboard_state *kbd;
} SDL_EVDEV_PrivateData;
#define _THIS SDL_EVDEV_PrivateData *_this
static _THIS = NULL;
static SDL_Scancode SDL_EVDEV_translate_keycode(int keycode);
static void SDL_EVDEV_sync_device(SDL_evdevlist_item *item);
static int SDL_EVDEV_device_removed(const char *dev_path);
#if SDL_USE_LIBUDEV
static int SDL_EVDEV_device_added(const char *dev_path, int udev_class);
static void SDL_EVDEV_udev_callback(SDL_UDEV_deviceevent udev_type, int udev_class,
const char *dev_path);
#endif /* SDL_USE_LIBUDEV */
static Uint8 EVDEV_MouseButtons[] = {
SDL_BUTTON_LEFT, /* BTN_LEFT 0x110 */
SDL_BUTTON_RIGHT, /* BTN_RIGHT 0x111 */
SDL_BUTTON_MIDDLE, /* BTN_MIDDLE 0x112 */
SDL_BUTTON_X1, /* BTN_SIDE 0x113 */
SDL_BUTTON_X2, /* BTN_EXTRA 0x114 */
SDL_BUTTON_X2 + 1, /* BTN_FORWARD 0x115 */
SDL_BUTTON_X2 + 2, /* BTN_BACK 0x116 */
SDL_BUTTON_X2 + 3 /* BTN_TASK 0x117 */
};
int
SDL_EVDEV_Init(void)
{
if (_this == NULL) {
_this = (SDL_EVDEV_PrivateData*)SDL_calloc(1, sizeof(*_this));
if (_this == NULL) {
return SDL_OutOfMemory();
}
#if SDL_USE_LIBUDEV
if (SDL_UDEV_Init() < 0) {
SDL_free(_this);
_this = NULL;
return -1;
}
/* Set up the udev callback */
if (SDL_UDEV_AddCallback(SDL_EVDEV_udev_callback) < 0) {
SDL_UDEV_Quit();
SDL_free(_this);
_this = NULL;
return -1;
}
/* Force a scan to build the initial device list */
SDL_UDEV_Scan();
#else
/* TODO: Scan the devices manually, like a caveman */
#endif /* SDL_USE_LIBUDEV */
_this->kbd = SDL_EVDEV_kbd_init();
}
_this->ref_count += 1;
return 0;
}
void
SDL_EVDEV_Quit(void)
{
if (_this == NULL) {
return;
}
_this->ref_count -= 1;
if (_this->ref_count < 1) {
#if SDL_USE_LIBUDEV
SDL_UDEV_DelCallback(SDL_EVDEV_udev_callback);
SDL_UDEV_Quit();
#endif /* SDL_USE_LIBUDEV */
SDL_EVDEV_kbd_quit(_this->kbd);
/* Remove existing devices */
while(_this->first != NULL) {
SDL_EVDEV_device_removed(_this->first->path);
}
SDL_assert(_this->first == NULL);
SDL_assert(_this->last == NULL);
SDL_assert(_this->num_devices == 0);
SDL_free(_this);
_this = NULL;
}
}
#if SDL_USE_LIBUDEV
static void SDL_EVDEV_udev_callback(SDL_UDEV_deviceevent udev_event, int udev_class,
const char* dev_path)
{
if (dev_path == NULL) {
return;
}
switch(udev_event) {
case SDL_UDEV_DEVICEADDED:
if (!(udev_class & (SDL_UDEV_DEVICE_MOUSE | SDL_UDEV_DEVICE_KEYBOARD |
SDL_UDEV_DEVICE_TOUCHSCREEN)))
return;
SDL_EVDEV_device_added(dev_path, udev_class);
break;
case SDL_UDEV_DEVICEREMOVED:
SDL_EVDEV_device_removed(dev_path);
break;
default:
break;
}
}
#endif /* SDL_USE_LIBUDEV */
void
SDL_EVDEV_Poll(void)
{
struct input_event events[32];
int i, j, len;
SDL_evdevlist_item *item;
SDL_Scancode scan_code;
int mouse_button;
SDL_Mouse *mouse;
float norm_x, norm_y;
if (!_this) {
return;
}
#if SDL_USE_LIBUDEV
SDL_UDEV_Poll();
#endif
mouse = SDL_GetMouse();
for (item = _this->first; item != NULL; item = item->next) {
while ((len = read(item->fd, events, (sizeof events))) > 0) {
len /= sizeof(events[0]);
for (i = 0; i < len; ++i) {
/* special handling for touchscreen, that should eventually be
used for all devices */
if (item->out_of_sync && item->is_touchscreen &&
events[i].type == EV_SYN && events[i].code != SYN_REPORT) {
break;
}
switch (events[i].type) {
case EV_KEY:
if (events[i].code >= BTN_MOUSE && events[i].code < BTN_MOUSE + SDL_arraysize(EVDEV_MouseButtons)) {
mouse_button = events[i].code - BTN_MOUSE;
if (events[i].value == 0) {
SDL_SendMouseButton(mouse->focus, mouse->mouseID, SDL_RELEASED, EVDEV_MouseButtons[mouse_button]);
} else if (events[i].value == 1) {
SDL_SendMouseButton(mouse->focus, mouse->mouseID, SDL_PRESSED, EVDEV_MouseButtons[mouse_button]);
}
break;
}
/* Probably keyboard */
scan_code = SDL_EVDEV_translate_keycode(events[i].code);
if (scan_code != SDL_SCANCODE_UNKNOWN) {
if (events[i].value == 0) {
SDL_SendKeyboardKey(SDL_RELEASED, scan_code);
} else if (events[i].value == 1 || events[i].value == 2 /* key repeated */) {
SDL_SendKeyboardKey(SDL_PRESSED, scan_code);
}
}
SDL_EVDEV_kbd_keycode(_this->kbd, events[i].code, events[i].value);
break;
case EV_ABS:
switch(events[i].code) {
case ABS_MT_SLOT:
if (!item->is_touchscreen) /* FIXME: temp hack */
break;
item->touchscreen_data->current_slot = events[i].value;
break;
case ABS_MT_TRACKING_ID:
if (!item->is_touchscreen) /* FIXME: temp hack */
break;
if (events[i].value >= 0) {
item->touchscreen_data->slots[item->touchscreen_data->current_slot].tracking_id = events[i].value;
item->touchscreen_data->slots[item->touchscreen_data->current_slot].delta = EVDEV_TOUCH_SLOTDELTA_DOWN;
} else {
item->touchscreen_data->slots[item->touchscreen_data->current_slot].delta = EVDEV_TOUCH_SLOTDELTA_UP;
}
break;
case ABS_MT_POSITION_X:
if (!item->is_touchscreen) /* FIXME: temp hack */
break;
item->touchscreen_data->slots[item->touchscreen_data->current_slot].x = events[i].value;
if (item->touchscreen_data->slots[item->touchscreen_data->current_slot].delta == EVDEV_TOUCH_SLOTDELTA_NONE) {
item->touchscreen_data->slots[item->touchscreen_data->current_slot].delta = EVDEV_TOUCH_SLOTDELTA_MOVE;
}
break;
case ABS_MT_POSITION_Y:
if (!item->is_touchscreen) /* FIXME: temp hack */
break;
item->touchscreen_data->slots[item->touchscreen_data->current_slot].y = events[i].value;
if (item->touchscreen_data->slots[item->touchscreen_data->current_slot].delta == EVDEV_TOUCH_SLOTDELTA_NONE) {
item->touchscreen_data->slots[item->touchscreen_data->current_slot].delta = EVDEV_TOUCH_SLOTDELTA_MOVE;
}
break;
case ABS_X:
if (item->is_touchscreen) /* FIXME: temp hack */
break;
SDL_SendMouseMotion(mouse->focus, mouse->mouseID, SDL_FALSE, events[i].value, mouse->y);
break;
case ABS_Y:
if (item->is_touchscreen) /* FIXME: temp hack */
break;
SDL_SendMouseMotion(mouse->focus, mouse->mouseID, SDL_FALSE, mouse->x, events[i].value);
break;
default:
break;
}
break;
case EV_REL:
switch(events[i].code) {
case REL_X:
SDL_SendMouseMotion(mouse->focus, mouse->mouseID, SDL_TRUE, events[i].value, 0);
break;
case REL_Y:
SDL_SendMouseMotion(mouse->focus, mouse->mouseID, SDL_TRUE, 0, events[i].value);
break;
case REL_WHEEL:
SDL_SendMouseWheel(mouse->focus, mouse->mouseID, 0, events[i].value, SDL_MOUSEWHEEL_NORMAL);
break;
case REL_HWHEEL:
SDL_SendMouseWheel(mouse->focus, mouse->mouseID, events[i].value, 0, SDL_MOUSEWHEEL_NORMAL);
break;
default:
break;
}
break;
case EV_SYN:
switch (events[i].code) {
case SYN_REPORT:
if (!item->is_touchscreen) /* FIXME: temp hack */
break;
for(j = 0; j < item->touchscreen_data->max_slots; j++) {
norm_x = (float)(item->touchscreen_data->slots[j].x - item->touchscreen_data->min_x) /
(float)item->touchscreen_data->range_x;
norm_y = (float)(item->touchscreen_data->slots[j].y - item->touchscreen_data->min_y) /
(float)item->touchscreen_data->range_y;
switch(item->touchscreen_data->slots[j].delta) {
case EVDEV_TOUCH_SLOTDELTA_DOWN:
SDL_SendTouch(item->fd, item->touchscreen_data->slots[j].tracking_id, SDL_TRUE, norm_x, norm_y, 1.0f);
item->touchscreen_data->slots[j].delta = EVDEV_TOUCH_SLOTDELTA_NONE;
break;
case EVDEV_TOUCH_SLOTDELTA_UP:
SDL_SendTouch(item->fd, item->touchscreen_data->slots[j].tracking_id, SDL_FALSE, norm_x, norm_y, 1.0f);
item->touchscreen_data->slots[j].tracking_id = -1;
item->touchscreen_data->slots[j].delta = EVDEV_TOUCH_SLOTDELTA_NONE;
break;
case EVDEV_TOUCH_SLOTDELTA_MOVE:
SDL_SendTouchMotion(item->fd, item->touchscreen_data->slots[j].tracking_id, norm_x, norm_y, 1.0f);
item->touchscreen_data->slots[j].delta = EVDEV_TOUCH_SLOTDELTA_NONE;
break;
default:
break;
}
}
if (item->out_of_sync)
item->out_of_sync = 0;
break;
case SYN_DROPPED:
if (item->is_touchscreen)
item->out_of_sync = 1;
SDL_EVDEV_sync_device(item);
break;
default:
break;
}
break;
}
}
}
}
}
static SDL_Scancode
SDL_EVDEV_translate_keycode(int keycode)
{
SDL_Scancode scancode = SDL_SCANCODE_UNKNOWN;
if (keycode < SDL_arraysize(linux_scancode_table))
scancode = linux_scancode_table[keycode];
if (scancode == SDL_SCANCODE_UNKNOWN) {
SDL_Log("The key you just pressed is not recognized by SDL. To help "
"get this fixed, please report this to the SDL forums/mailing list "
"<https://discourse.libsdl.org/> EVDEV KeyCode %d", keycode);
}
return scancode;
}
#ifdef SDL_USE_LIBUDEV
static int
SDL_EVDEV_init_touchscreen(SDL_evdevlist_item* item)
{
int ret, i;
char name[64];
struct input_absinfo abs_info;
if (!item->is_touchscreen)
return 0;
item->touchscreen_data = SDL_calloc(1, sizeof(*item->touchscreen_data));
if (item->touchscreen_data == NULL)
return SDL_OutOfMemory();
ret = ioctl(item->fd, EVIOCGNAME(sizeof(name)), name);
if (ret < 0) {
SDL_free(item->touchscreen_data);
return SDL_SetError("Failed to get evdev touchscreen name");
}
item->touchscreen_data->name = SDL_strdup(name);
if (item->touchscreen_data->name == NULL) {
SDL_free(item->touchscreen_data);
return SDL_OutOfMemory();
}
ret = ioctl(item->fd, EVIOCGABS(ABS_MT_POSITION_X), &abs_info);
if (ret < 0) {
SDL_free(item->touchscreen_data->name);
SDL_free(item->touchscreen_data);
return SDL_SetError("Failed to get evdev touchscreen limits");
}
item->touchscreen_data->min_x = abs_info.minimum;
item->touchscreen_data->max_x = abs_info.maximum;
item->touchscreen_data->range_x = abs_info.maximum - abs_info.minimum;
ret = ioctl(item->fd, EVIOCGABS(ABS_MT_POSITION_Y), &abs_info);
if (ret < 0) {
SDL_free(item->touchscreen_data->name);
SDL_free(item->touchscreen_data);
return SDL_SetError("Failed to get evdev touchscreen limits");
}
item->touchscreen_data->min_y = abs_info.minimum;
item->touchscreen_data->max_y = abs_info.maximum;
item->touchscreen_data->range_y = abs_info.maximum - abs_info.minimum;
ret = ioctl(item->fd, EVIOCGABS(ABS_MT_SLOT), &abs_info);
if (ret < 0) {
SDL_free(item->touchscreen_data->name);
SDL_free(item->touchscreen_data);
return SDL_SetError("Failed to get evdev touchscreen limits");
}
item->touchscreen_data->max_slots = abs_info.maximum + 1;
item->touchscreen_data->slots = SDL_calloc(
item->touchscreen_data->max_slots,
sizeof(*item->touchscreen_data->slots));
if (item->touchscreen_data->slots == NULL) {
SDL_free(item->touchscreen_data->name);
SDL_free(item->touchscreen_data);
return SDL_OutOfMemory();
}
for(i = 0; i < item->touchscreen_data->max_slots; i++) {
item->touchscreen_data->slots[i].tracking_id = -1;
}
ret = SDL_AddTouch(item->fd, /* I guess our fd is unique enough */
item->touchscreen_data->name);
if (ret < 0) {
SDL_free(item->touchscreen_data->slots);
SDL_free(item->touchscreen_data->name);
SDL_free(item->touchscreen_data);
return ret;
}
return 0;
}
#endif /* SDL_USE_LIBUDEV */
static void
SDL_EVDEV_destroy_touchscreen(SDL_evdevlist_item* item) {
if (!item->is_touchscreen)
return;
SDL_DelTouch(item->fd);
SDL_free(item->touchscreen_data->slots);
SDL_free(item->touchscreen_data->name);
SDL_free(item->touchscreen_data);
}
static void
SDL_EVDEV_sync_device(SDL_evdevlist_item *item)
{
#ifdef EVIOCGMTSLOTS
int i, ret;
struct input_absinfo abs_info;
/*
* struct input_mt_request_layout {
* __u32 code;
* __s32 values[num_slots];
* };
*
* this is the structure we're trying to emulate
*/
__u32* mt_req_code;
__s32* mt_req_values;
size_t mt_req_size;
/* TODO: sync devices other than touchscreen */
if (!item->is_touchscreen)
return;
mt_req_size = sizeof(*mt_req_code) +
sizeof(*mt_req_values) * item->touchscreen_data->max_slots;
mt_req_code = SDL_calloc(1, mt_req_size);
if (mt_req_code == NULL) {
return;
}
mt_req_values = (__s32*)mt_req_code + 1;
*mt_req_code = ABS_MT_TRACKING_ID;
ret = ioctl(item->fd, EVIOCGMTSLOTS(mt_req_size), mt_req_code);
if (ret < 0) {
SDL_free(mt_req_code);
return;
}
for(i = 0; i < item->touchscreen_data->max_slots; i++) {
/*
* This doesn't account for the very edge case of the user removing their
* finger and replacing it on the screen during the time we're out of sync,
* which'll mean that we're not going from down -> up or up -> down, we're
* going from down -> down but with a different tracking id, meaning we'd
* have to tell SDL of the two events, but since we wait till SYN_REPORT in
* SDL_EVDEV_Poll to tell SDL, the current structure of this code doesn't
* allow it. Lets just pray to God it doesn't happen.
*/
if (item->touchscreen_data->slots[i].tracking_id < 0 &&
mt_req_values[i] >= 0) {
item->touchscreen_data->slots[i].tracking_id = mt_req_values[i];
item->touchscreen_data->slots[i].delta = EVDEV_TOUCH_SLOTDELTA_DOWN;
} else if (item->touchscreen_data->slots[i].tracking_id >= 0 &&
mt_req_values[i] < 0) {
item->touchscreen_data->slots[i].tracking_id = -1;
item->touchscreen_data->slots[i].delta = EVDEV_TOUCH_SLOTDELTA_UP;
}
}
*mt_req_code = ABS_MT_POSITION_X;
ret = ioctl(item->fd, EVIOCGMTSLOTS(mt_req_size), mt_req_code);
if (ret < 0) {
SDL_free(mt_req_code);
return;
}
for(i = 0; i < item->touchscreen_data->max_slots; i++) {
if (item->touchscreen_data->slots[i].tracking_id >= 0 &&
item->touchscreen_data->slots[i].x != mt_req_values[i]) {
item->touchscreen_data->slots[i].x = mt_req_values[i];
if (item->touchscreen_data->slots[i].delta ==
EVDEV_TOUCH_SLOTDELTA_NONE) {
item->touchscreen_data->slots[i].delta =
EVDEV_TOUCH_SLOTDELTA_MOVE;
}
}
}
*mt_req_code = ABS_MT_POSITION_Y;
ret = ioctl(item->fd, EVIOCGMTSLOTS(mt_req_size), mt_req_code);
if (ret < 0) {
SDL_free(mt_req_code);
return;
}
for(i = 0; i < item->touchscreen_data->max_slots; i++) {
if (item->touchscreen_data->slots[i].tracking_id >= 0 &&
item->touchscreen_data->slots[i].y != mt_req_values[i]) {
item->touchscreen_data->slots[i].y = mt_req_values[i];
if (item->touchscreen_data->slots[i].delta ==
EVDEV_TOUCH_SLOTDELTA_NONE) {
item->touchscreen_data->slots[i].delta =
EVDEV_TOUCH_SLOTDELTA_MOVE;
}
}
}
ret = ioctl(item->fd, EVIOCGABS(ABS_MT_SLOT), &abs_info);
if (ret < 0) {
SDL_free(mt_req_code);
return;
}
item->touchscreen_data->current_slot = abs_info.value;
SDL_free(mt_req_code);
#endif /* EVIOCGMTSLOTS */
}
#if SDL_USE_LIBUDEV
static int
SDL_EVDEV_device_added(const char *dev_path, int udev_class)
{
int ret;
SDL_evdevlist_item *item;
/* Check to make sure it's not already in list. */
for (item = _this->first; item != NULL; item = item->next) {
if (SDL_strcmp(dev_path, item->path) == 0) {
return -1; /* already have this one */
}
}
item = (SDL_evdevlist_item *) SDL_calloc(1, sizeof (SDL_evdevlist_item));
if (item == NULL) {
return SDL_OutOfMemory();
}
item->fd = open(dev_path, O_RDONLY | O_NONBLOCK);
if (item->fd < 0) {
SDL_free(item);
return SDL_SetError("Unable to open %s", dev_path);
}
item->path = SDL_strdup(dev_path);
if (item->path == NULL) {
close(item->fd);
SDL_free(item);
return SDL_OutOfMemory();
}
if (udev_class & SDL_UDEV_DEVICE_TOUCHSCREEN) {
item->is_touchscreen = 1;
if ((ret = SDL_EVDEV_init_touchscreen(item)) < 0) {
close(item->fd);
SDL_free(item);
return ret;
}
}
if (_this->last == NULL) {
_this->first = _this->last = item;
} else {
_this->last->next = item;
_this->last = item;
}
SDL_EVDEV_sync_device(item);
return _this->num_devices++;
}
#endif /* SDL_USE_LIBUDEV */
static int
SDL_EVDEV_device_removed(const char *dev_path)
{
SDL_evdevlist_item *item;
SDL_evdevlist_item *prev = NULL;
for (item = _this->first; item != NULL; item = item->next) {
/* found it, remove it. */
if (SDL_strcmp(dev_path, item->path) == 0) {
if (prev != NULL) {
prev->next = item->next;
} else {
SDL_assert(_this->first == item);
_this->first = item->next;
}
if (item == _this->last) {
_this->last = prev;
}
if (item->is_touchscreen) {
SDL_EVDEV_destroy_touchscreen(item);
}
close(item->fd);
SDL_free(item->path);
SDL_free(item);
_this->num_devices--;
return 0;
}
prev = item;
}
return -1;
}
#endif /* SDL_INPUT_LINUXEV */
/* vi: set ts=4 sw=4 expandtab: */
SDL_Mouse::y
int y
Definition: SDL_mouse_c.h:79
SDL_GetMouse
SDL_Mouse * SDL_GetMouse(void)
Definition: SDL_mouse.c:112
SDL_TRUE
Definition: SDL_stdinc.h:142
first
const GLint * first
Definition: SDL_opengl_glext.h:368
x
GLint GLint GLint GLint GLint x
Definition: SDL_opengl.h:1574
SDL_Mouse::focus
SDL_Window * focus
Definition: SDL_mouse_c.h:77
SDL_FALSE
Definition: SDL_stdinc.h:141
SDL_MOUSEWHEEL_NORMAL
Definition: SDL_mouse.h:68
SDL_BUTTON_RIGHT
#define SDL_BUTTON_RIGHT
Definition: SDL_mouse.h:284
events
static SDL_Event events[EVENT_BUF_SIZE]
Definition: testgesture.c:35
SDL_SendTouch
int SDL_SendTouch(SDL_TouchID id, SDL_FingerID fingerid, SDL_bool down, float x, float y, float pressure)
Definition: SDL_touch.c:222
SDL_BUTTON_X1
#define SDL_BUTTON_X1
Definition: SDL_mouse.h:285
len
GLenum GLsizei len
Definition: SDL_opengl_glext.h:2926
name
GLuint const GLchar * name
Definition: SDL_opengl_glext.h:660
SDL_Mouse::mouseID
SDL_MouseID mouseID
Definition: SDL_mouse_c.h:76
SDL_SendKeyboardKey
int SDL_SendKeyboardKey(Uint8 state, SDL_Scancode scancode)
Definition: SDL_keyboard.c:679
SDL_SendTouchMotion
int SDL_SendTouchMotion(SDL_TouchID id, SDL_FingerID fingerid, float x, float y, float pressure)
Definition: SDL_touch.c:284
SDL_evdev_kbd.h
_this
static SDL_VideoDevice * _this
Definition: SDL_video.c:121
SDL_Log
#define SDL_Log
Definition: SDL_dynapi_overrides.h:31
num_devices
EGLDeviceEXT EGLint * num_devices
Definition: eglext.h:621
SDL_SendMouseMotion
int SDL_SendMouseMotion(SDL_Window *window, SDL_MouseID mouseID, int relative, int x, int y)
Definition: SDL_mouse.c:237
SDL_BUTTON_LEFT
#define SDL_BUTTON_LEFT
Definition: SDL_mouse.h:282
SDL_EVDEV_kbd_quit
void SDL_EVDEV_kbd_quit(SDL_EVDEV_keyboard_state *state)
Definition: SDL_evdev_kbd.c:671
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
Uint8
uint8_t Uint8
Definition: SDL_stdinc.h:157
SDL_free
#define SDL_free
Definition: SDL_dynapi_overrides.h:377
SDL_EVDEV_kbd_keycode
void SDL_EVDEV_kbd_keycode(SDL_EVDEV_keyboard_state *state, unsigned int keycode, int down)
Definition: SDL_evdev_kbd.c:666
j
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int in j)
Definition: SDL_x11sym.h:50
SDL_scancode.h
value
GLsizei const GLfloat * value
Definition: SDL_opengl_glext.h:698
SDL_DelTouch
void SDL_DelTouch(SDL_TouchID id)
Definition: SDL_touch.c:337
SDL_BUTTON_MIDDLE
#define SDL_BUTTON_MIDDLE
Definition: SDL_mouse.h:283
y
GLint GLint GLint GLint GLint GLint y
Definition: SDL_opengl.h:1574
SDL_AddTouch
int SDL_AddTouch(SDL_TouchID touchID, const char *name)
Definition: SDL_touch.c:136
SDL_endian.h
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
SDL_Mouse::x
int x
Definition: SDL_mouse_c.h:78
SDL_assert
#define SDL_assert(condition)
Definition: SDL_assert.h:169
NULL
#define NULL
Definition: begin_code.h:164
SDL_OutOfMemory
#define SDL_OutOfMemory()
Definition: SDL_error.h:52
SDL_SendMouseWheel
int SDL_SendMouseWheel(SDL_Window *window, SDL_MouseID mouseID, float x, float y, SDL_MouseWheelDirection direction)
Definition: SDL_mouse.c:512
SDL_SCANCODE_UNKNOWN
Definition: SDL_scancode.h:45
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:30
SDL_EVDEV_kbd_init
SDL_EVDEV_keyboard_state * SDL_EVDEV_kbd_init(void)
Definition: SDL_evdev_kbd.c:660
SDL_calloc
#define SDL_calloc
Definition: SDL_dynapi_overrides.h:375
linux_scancode_table
static SDL_Scancode const linux_scancode_table[]
Definition: scancodes_linux.h:28
SDL_strdup
#define SDL_strdup
Definition: SDL_dynapi_overrides.h:397
SDL_evdev.h
type
GLuint GLuint GLsizei GLenum type
Definition: SDL_opengl.h:1571
SDL_arraysize
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:93
path
GLsizei const GLchar *const * path
Definition: SDL_opengl_glext.h:3730
SDL_Mouse
Definition: SDL_mouse_c.h:43
SDL_strcmp
#define SDL_strcmp
Definition: SDL_dynapi_overrides.h:417
SDL_PRESSED
#define SDL_PRESSED
Definition: SDL_events.h:50
SDL_BUTTON_X2
#define SDL_BUTTON_X2
Definition: SDL_mouse.h:286
SDL.h
SDL_RELEASED
#define SDL_RELEASED
Definition: SDL_events.h:49
SDL_EVDEV_keyboard_state
struct SDL_EVDEV_keyboard_state SDL_EVDEV_keyboard_state
Definition: SDL_evdev_kbd.h:23
SDL_SendMouseButton
int SDL_SendMouseButton(SDL_Window *window, SDL_MouseID mouseID, Uint8 state, Uint8 button)
Definition: SDL_mouse.c:506
SDL_Scancode
SDL_Scancode
The SDL keyboard scancode representation.
Definition: SDL_scancode.h:43
fd
GLuint64 GLenum GLint fd
Definition: gl2ext.h:1508
SDL_Event::type
Uint32 type
Definition: SDL_events.h:527
SDL_assert.h