SDL backend set the mouse button bitmask incorrectly

[dosdemo] / src / sdl / main.c

diff --git a/src/sdl/main.c b/src/sdl/main.c
index 6b65796..48852f5 100644 (file)
--- a/src/sdl/main.c
+++ b/src/sdl/main.c
@@ -129,10 +129,10 @@ static void handle_event(SDL_Event *ev)
                break;
 
        case SDL_MOUSEBUTTONDOWN:
-               mouse_bmask |= 1 << ev->button.button;
+               mouse_bmask |= 1 << (ev->button.button - SDL_BUTTON_LEFT);
                if(0) {
        case SDL_MOUSEBUTTONUP:
-                       mouse_bmask &= ~(1 << ev->button.button);
+                       mouse_bmask &= ~(1 << (ev->button.button - SDL_BUTTON_LEFT));
                }
                mouse_x = ev->button.x / fbscale;
                mouse_y = ev->button.y / fbscale;