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| author |  Robin Haberkorn <robin.haberkorn@googlemail.com> | 2014-07-27 17:26:44 +0200 |
|---|---|---|
| committer | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2014-07-27 17:38:32 +0200 |
| commit | eb902844946f0bda7da76cdb1e9aafae4881b63c (patch) | |
| tree | 265bc25c7e143781c991aedb6a9c6094c89054f6 /protocol/serial_mouse_mousesystems.c | |
| parent | 0bfba7acc4e05e66c8ab448286fc51bc94d03a57 (diff) | |
| download | qmk_firmware-eb902844946f0bda7da76cdb1e9aafae4881b63c.tar.gz | |
serial_mouse: simplified clipping of X/Y/V/H changes below -127 using a MAX macro
Diffstat (limited to 'protocol/serial_mouse_mousesystems.c')
| -rw-r--r-- | protocol/serial_mouse_mousesystems.c | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/protocol/serial_mouse_mousesystems.c b/protocol/serial_mouse_mousesystems.c index 36c67386f..c4ddbb845 100644 --- a/protocol/serial_mouse_mousesystems.c +++ b/protocol/serial_mouse_mousesystems.c @@ -27,6 +27,11 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. #include "print.h" #include "debug.h" +#ifdef MAX +#undef MAX +#endif +#define MAX(X, Y) ((X) > (Y) ? (X) : (Y)) + //#define SERIAL_MOUSE_CENTER_SCROLL static void print_usb_data(const report_mouse_t *report); @@ -67,20 +72,16 @@ void serial_mouse_task(void) #ifdef SERIAL_MOUSE_CENTER_SCROLL if ((buffer[0] & 0x7) == 0x5 && (buffer[1] || buffer[2])) { - report.h = (int8_t)buffer[1]; /* USB HID uses only values from -127 to 127 */ - report.h = report.h < -127 ? -127 : report.h; - report.v = (int8_t)buffer[2]; - report.v = report.v < -127 ? -127 : report.v; + report.h = MAX((int8_t)buffer[1], -127); + report.v = MAX((int8_t)buffer[2], -127); print_usb_data(&report); host_mouse_send(&report); if (buffer[3] || buffer[4]) { - report.h = (int8_t)buffer[3]; - report.h = report.h < -127 ? -127 : report.h; - report.v = (int8_t)buffer[4]; - report.v = report.v < -127 ? -127 : report.v; + report.h = MAX((int8_t)buffer[3], -127); + report.v = MAX((int8_t)buffer[4], -127); print_usb_data(&report); host_mouse_send(&report); @@ -103,20 +104,16 @@ void serial_mouse_task(void) if (!(buffer[0] & (1 << 0))) report.buttons |= MOUSE_BTN2; - report.x = (int8_t)buffer[1]; /* USB HID uses only values from -127 to 127 */ - report.x = report.x < -127 ? -127 : report.x; - report.y = -(int8_t)buffer[2]; - report.y = report.y < -127 ? -127 : report.y; + report.x = MAX((int8_t)buffer[1], -127); + report.y = MAX(-(int8_t)buffer[2], -127); print_usb_data(&report); host_mouse_send(&report); if (buffer[3] || buffer[4]) { - report.x = (int8_t)buffer[3]; - report.x = report.x < -127 ? -127 : report.x; - report.y = -(int8_t)buffer[4]; - report.y = report.y < -127 ? -127 : report.y; + report.x = MAX((int8_t)buffer[3], -127); + report.y = MAX(-(int8_t)buffer[4], -127); print_usb_data(&report); host_mouse_send(&report); |