Leahnaya/SDL
1
0
Fork 0
mirror of https://github.com/yawut/SDL.git synced 2026-10-02 13:16:43 -05:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merged FreeBSD joystick patch

Browse Source 
--HG--
branch : SDL-1.2
This commit is contained in:
Sam Lantinga
2007-07-08 22:14:37 +00:00
parent 5fee52b523
commit 8ba37093d5
1 changed files with 36 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

61
src/joystick/bsd/SDL_sysjoystick.c
View File

@@ -123,6 +123,12 @@ struct joystick_hwdata {
struct report_desc *repdesc;
struct report inreport;
int axis_map[JOYAXE_count]; /* map present JOYAXE_* to 0,1,..*/
int x;
int y;
int xmin;
int ymin;
int xmax;
int ymax;
};
static char *joynames[MAX_JOYS];
@@ -257,6 +263,12 @@ SDL_SYS_JoystickOpen(SDL_Joystick *joy)
joy->hwdata = hw;
hw->fd = fd;
hw->path = strdup(path);
hw->x = 0;
hw->y = 0;
hw->xmin = 0xffff;
hw->ymin = 0xffff;
hw->xmax = 0;
hw->ymax = 0;
if (! SDL_strncmp(path, "/dev/joy", 8)) {
hw->type = BSDJOY_JOY;
joy->naxes = 2;
@@ -380,43 +392,42 @@ SDL_SYS_JoystickUpdate(SDL_Joystick *joy)
#if defined(__FREEBSD__) || SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H
struct joystick gameport;
static int x, y, xmin = 0xffff, ymin = 0xffff, xmax = 0, ymax = 0;
if (joy->hwdata->type == BSDJOY_JOY) {
if (read(joy->hwdata->fd, &gameport, sizeof gameport) != sizeof gameport)
return;
if (abs(x - gameport.x) > 8) {
x = gameport.x;
if (x < xmin) {
xmin = x;
if (abs(joy->hwdata->x - gameport.x) > 8) {
joy->hwdata->x = gameport.x;
if (joy->hwdata->x < joy->hwdata->xmin) {
joy->hwdata->xmin = joy->hwdata->x;
}
if (x > xmax) {
xmax = x;
if (joy->hwdata->x > joy->hwdata->xmax) {
joy->hwdata->xmax = joy->hwdata->x;
}
if (xmin == xmax) {
xmin--;
xmax++;
if (joy->hwdata->xmin == joy->hwdata->xmax) {
joy->hwdata->xmin--;
joy->hwdata->xmax++;
}
v = (Sint32)x;
v -= (xmax + xmin + 1)/2;
v *= 32768/((xmax - xmin + 1)/2);
v = (Sint32)joy->hwdata->x;
v -= (joy->hwdata->xmax + joy->hwdata->xmin + 1)/2;
v *= 32768/((joy->hwdata->xmax - joy->hwdata->xmin + 1)/2);
SDL_PrivateJoystickAxis(joy, 0, v);
}
if (abs(y - gameport.y) > 8) {
y = gameport.y;
if (y < ymin) {
ymin = y;
if (abs(joy->hwdata->y - gameport.y) > 8) {
joy->hwdata->y = gameport.y;
if (joy->hwdata->y < joy->hwdata->ymin) {
joy->hwdata->ymin = joy->hwdata->y;
}
if (y > ymax) {
ymax = y;
if (joy->hwdata->y > joy->hwdata->ymax) {
joy->hwdata->ymax = joy->hwdata->y;
}
if (ymin == ymax) {
ymin--;
ymax++;
if (joy->hwdata->ymin == joy->hwdata->ymax) {
joy->hwdata->ymin--;
joy->hwdata->ymax++;
}
v = (Sint32)y;
v -= (ymax + ymin + 1)/2;
v *= 32768/((ymax - ymin + 1)/2);
v = (Sint32)joy->hwdata->y;
v -= (joy->hwdata->ymax + joy->hwdata->ymin + 1)/2;
v *= 32768/((joy->hwdata->ymax - joy->hwdata->ymin + 1)/2);
SDL_PrivateJoystickAxis(joy, 1, v);
}
if (gameport.b1 != joy->buttons[0]) {