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[WIP] Add handling of absolute mouse position (touch/graphic tablets)

This commit is contained in:
Bad Diode 2022-10-12 13:30:28 +02:00
parent b9d7ed276d
commit 44acb94e43
1 changed files with 13 additions and 6 deletions
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19
src/main.c
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@ -83,11 +83,12 @@ init_input(void) {
// fprintf(stderr, "error: couldn't open keyboard %s: %s.\n", KBD_PATH, strerror(errno)); // fprintf(stderr, "error: couldn't open keyboard %s: %s.\n", KBD_PATH, strerror(errno));
} }
in.mouse_fd = open(MOUSE_PATH, O_RDONLY | O_NONBLOCK); // in.mouse_fd = open(MOUSE_PATH, O_RDONLY | O_NONBLOCK);
in.mouse_fd = open("/dev/input/event2", O_RDONLY | O_NONBLOCK);
if (in.mouse_fd == -1) { if (in.mouse_fd == -1) {
// NOTE: Some applications may not require a mouse so this is // NOTE: Some applications may not require a mouse so this is
// optional, but we are still displaying an error. // optional, but we are still displaying an error.
// fprintf(stderr, "error: couldn't open mouse %s: %s.\n", MOUSE_PATH, strerror(errno)); fprintf(stderr, "error: couldn't open mouse %s: %s.\n", MOUSE_PATH, strerror(errno));
} }
} }
@ -116,6 +117,7 @@ poll_mouse(void) {
struct input_event mouse_event; struct input_event mouse_event;
if (read(in.mouse_fd, &mouse_event, sizeof(mouse_event)) != -1) { if (read(in.mouse_fd, &mouse_event, sizeof(mouse_event)) != -1) {
if (mouse_event.type == EV_REL) { if (mouse_event.type == EV_REL) {
printf("MOUSE REL EVENT\n");
if (mouse_event.code == REL_X) { if (mouse_event.code == REL_X) {
in.mouse.x = CLAMP( in.mouse.x = CLAMP(
in.mouse.x + (s32)mouse_event.value, 0, (s32)screen_width); in.mouse.x + (s32)mouse_event.value, 0, (s32)screen_width);
@ -124,6 +126,7 @@ poll_mouse(void) {
in.mouse.y + (s32)mouse_event.value, 0, (s32)screen_height); in.mouse.y + (s32)mouse_event.value, 0, (s32)screen_height);
} }
} else if (mouse_event.type == EV_KEY) { } else if (mouse_event.type == EV_KEY) {
printf("MOUSE KEY EVENT\n");
switch (mouse_event.code) { switch (mouse_event.code) {
case BTN_LEFT: { case BTN_LEFT: {
if (mouse_event.value == 1) { if (mouse_event.value == 1) {
@ -141,17 +144,21 @@ poll_mouse(void) {
} break; } break;
default: break; default: break;
} }
} else if (mouse_event.type == EV_ABS) {
printf("MOUSE ABS EVENT\n");
if (mouse_event.code == ABS_X) {
in.mouse.x = CLAMP((s32)mouse_event.value, 0, (s32)screen_width);
} else if (mouse_event.code == ABS_Y) {
in.mouse.y = CLAMP((s32)mouse_event.value, 0, (s32)screen_height);
}
} }
in.mouse.update = true; in.mouse.update = true;
// DEBUG:
// printf("MOUSE: (type: %d, code: %d, value: %d)\n",
// mouse_event.type, mouse_event.code, mouse_event.value);
} }
} }
void void
poll_input(void) { poll_input(void) {
poll_keyboard(); // poll_keyboard();
poll_mouse(); poll_mouse();
} }