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quack
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provides some slight acceleration and desceleration on bluetooth mouses

This commit is contained in:
demik 2021-12-02 14:00:12 +01:00
parent 9c52c41ee2
commit 7911d07477
3 changed files with 43 additions and 11 deletions
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3
ChangeLog.md
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@ -1,3 +1,6 @@
## v1.4.3
- provides some slight acceleration and desceleration on bluetooth mouses
## v1.4.2
- added support for MicroSpeed MacTRAC 2.0
- fixed a BT led state when a device reconnect while scanning

2
README.md
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@ -8,7 +8,7 @@ It include a custom PCB (EDA subfolder) with the accompanying firmware (code in
### Supported mouse conversions:
Quack support the following conversions:
- ADB mouse to Macintosh 128/512/Plus
- ADB mouse to Macintosh 128/512/Plus or Apple Lisa
- Bluetooth mouse to Macintosh 128/512/Plus or Apple Lisa
### Unsupported mouse conversions:

49
main/blue.c
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@ -375,6 +375,19 @@ void blue_h_input(esp_hidh_dev_t *dev, uint8_t *data, uint16_t length) {
buttons = data[0];
/*
* A friend of mine did this for a beer, it helps a little with high DPI mouses
* This is a precalculated table that looks like a squadhed arctan()
*/
const unsigned char hid2quad[] = {
0x01, 0x01, 0x02, 0x02, 0x03, 0x04, 0x05, 0x06,
0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0E, 0x0F,
0x11, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19,
0x1A, 0x1C, 0x1D, 0x1E, 0x20, 0x21, 0x22, 0x23,
0x24, 0x25, 0x26, 0x26, 0x27, 0x27, 0x28, 0x28
};
/*
* Do some checks before parsing data. We sould't get anything wrong in theory,
* but we sometimes to get shit from either mouse or bluetooth stack
@ -405,28 +418,44 @@ void blue_h_input(esp_hidh_dev_t *dev, uint8_t *data, uint16_t length) {
blue_handle_button(buttons);
/* quadrature use 7 bits x/y offsets, bluetooth BOOT uses 8 bits */
/*
* this try to help avoiding issues with high DPI mouses:
* - reduce bluetooth movement speed a little bit before 40 pixels per poll
* - go slower after 40 pixels per poll just to avoid too big jumps
*/
x = data[1];
y = data[2];
/* reduce bluetooth movement speed as well before notifying */
if (x != 0) {
if (x == 1 || x == -1) {
xQueueSendToBack(q_qx, &x, 0);
if (x < 0) {
if (x < -40)
x = ((x + 40) / 2) - 40;
else
x = -1 * hid2quad[(x * -1) - 1];
}
else {
x /= 2;
xQueueSendToBack(q_qx, &x, 0);
if (x > 40)
x = ((x - 40) / 2) + 40;
else
x = hid2quad[x - 1];
}
xQueueSendToBack(q_qx, &x, 0);
}
if (y != 0) {
if (y == 1 || y == -1) {
xQueueSendToBack(q_qy, &y, 0);
if (y < 0) {
if (y < -40)
y = ((y + 40) / 2) - 40;
else
y = -1 * hid2quad[(y * -1) - 1];
}
else {
y /= 2;
xQueueSendToBack(q_qy, &y, 0);
if (y > 40)
y = ((y - 40) / 2) + 40;
else
y = hid2quad[y - 1];
}
xQueueSendToBack(q_qy, &y, 0);
}
}