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video: Wayland: Always round scaled pointer coordinates down 

Rounding up can cause the pointer coordinates to exceed the window boundaries at the right and bottom edges.
This commit is contained in:
Frank Praznik 2022-04-15 15:03:28 -04:00 committed by Ethan Lee
parent 13393a1c4b
commit edb473cf46
1 changed files with 4 additions and 4 deletions
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8
src/video/wayland/SDL_waylandevents.c
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@ -391,8 +391,8 @@ pointer_handle_motion(void *data, struct wl_pointer *pointer,
if (input->pointer_focus) {
const float sx_f = (float)wl_fixed_to_double(sx_w);
const float sy_f = (float)wl_fixed_to_double(sy_w);
const int sx = (int)SDL_lroundf(sx_f * window->pointer_scale_x);
const int sy = (int)SDL_lroundf(sy_f * window->pointer_scale_y);
const int sx = (int)SDL_floorf(sx_f * window->pointer_scale_x);
const int sy = (int)SDL_floorf(sy_f * window->pointer_scale_y);
SDL_SendMouseMotion(window->sdlwindow, 0, 0, sx, sy);
}
}
@ -1826,8 +1826,8 @@ tablet_tool_handle_motion(void* data, struct zwp_tablet_tool_v2* tool, wl_fixed_
if (input->tool_focus) {
const float sx_f = (float)wl_fixed_to_double(sx_w);
const float sy_f = (float)wl_fixed_to_double(sy_w);
const int sx = (int)SDL_lroundf(sx_f * window->pointer_scale_x);
const int sy = (int)SDL_lroundf(sy_f * window->pointer_scale_y);
const int sx = (int)SDL_floorf(sx_f * window->pointer_scale_x);
const int sy = (int)SDL_floorf(sy_f * window->pointer_scale_y);
SDL_SendMouseMotion(window->sdlwindow, 0, 0, sx, sy);
}
}