bool input_translate_coord_viewport(int mouse_x, int mouse_y,
int16_t *res_x, int16_t *res_y, int16_t *res_screen_x, int16_t *res_screen_y)
{
struct rarch_viewport vp = {0};
if (driver.video->viewport_info)
video_viewport_info_func(&vp);
else
return false;
int scaled_screen_x = (2 * mouse_x * 0x7fff) / (int)vp.full_width - 0x7fff;
int scaled_screen_y = (2 * mouse_y * 0x7fff) / (int)vp.full_height - 0x7fff;
if (scaled_screen_x < -0x7fff || scaled_screen_x > 0x7fff)
scaled_screen_x = -0x8000; // OOB
if (scaled_screen_y < -0x7fff || scaled_screen_y > 0x7fff)
scaled_screen_y = -0x8000; // OOB
mouse_x -= vp.x;
mouse_y -= vp.y;
int scaled_x = (2 * mouse_x * 0x7fff) / (int)vp.width - 0x7fff;
int scaled_y = (2 * mouse_y * 0x7fff) / (int)vp.height - 0x7fff;
if (scaled_x < -0x7fff || scaled_x > 0x7fff)
scaled_x = -0x8000; // OOB
if (scaled_y < -0x7fff || scaled_y > 0x7fff)
scaled_y = -0x8000; // OOB
*res_x = scaled_x;
*res_y = scaled_y;
*res_screen_x = scaled_screen_x;
*res_screen_y = scaled_screen_y;
return true;
}
static void x_input_poll_mouse(x11_input_t *x11)
{
Window root_win, child_win;
int root_x, root_y, win_x, win_y;
unsigned mask;
x11->mouse_last_x = x11->mouse_x;
x11->mouse_last_y = x11->mouse_y;
XQueryPointer(x11->display,
x11->win,
&root_win, &child_win,
&root_x, &root_y,
&win_x, &win_y,
&mask);
x11->mouse_x = win_x;
x11->mouse_y = win_y;
x11->mouse_l = mask & Button1Mask;
x11->mouse_m = mask & Button2Mask;
x11->mouse_r = mask & Button3Mask;
// Somewhat hacky, but seem to do the job.
if (x11->grab_mouse && video_focus_func())
{
struct rarch_viewport vp = {0};
video_viewport_info_func(&vp);
int mid_w = vp.full_width >> 1;
int mid_h = vp.full_height >> 1;
if (x11->mouse_x != mid_w || x11->mouse_y != mid_h)
{
XWarpPointer(x11->display, None,
x11->win, 0, 0, 0, 0,
mid_w, mid_h);
}
x11->mouse_last_x = mid_w;
x11->mouse_last_y = mid_h;
}
}
