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SDL2: try out relative mouse mode

This commit is contained in:
Alam Ed Arias 2016-06-07 15:54:08 -04:00
parent 6bf40b8f40
commit e4d57ad72c
1 changed files with 8 additions and 1 deletions
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9
src/sdl/i_video.c
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@ -127,7 +127,8 @@ static Uint8 BitsPerPixel = 16;
Uint16 realwidth = BASEVIDWIDTH;
Uint16 realheight = BASEVIDHEIGHT;
static SDL_bool mousegrabok = SDL_TRUE;
#define HalfWarpMouse(x,y) SDL_WarpMouseInWindow(window, (Uint16)(x/2),(Uint16)(y/2))
static SDL_bool wrapmouseok = SDL_FALSE;
#define HalfWarpMouse(x,y) if (wrapmouseok) SDL_WarpMouseInWindow(window, (Uint16)(x/2),(Uint16)(y/2))
static SDL_bool videoblitok = SDL_FALSE;
static SDL_bool exposevideo = SDL_FALSE;
static SDL_bool usesdl2soft = SDL_FALSE;
@ -417,6 +418,8 @@ static INT32 Impl_SDL_Scancode_To_Keycode(SDL_Scancode code)
static void SDLdoUngrabMouse(void)
{
SDL_SetWindowGrab(window, SDL_FALSE);
wrapmouseok = SDL_FALSE;
SDL_SetRelativeMouseMode(SDL_FALSE);
}
void SDLforceUngrabMouse(void)
@ -424,6 +427,8 @@ void SDLforceUngrabMouse(void)
if (SDL_WasInit(SDL_INIT_VIDEO)==SDL_INIT_VIDEO && window != NULL)
{
SDL_SetWindowGrab(window, SDL_FALSE);
wrapmouseok = SDL_FALSE;
SDL_SetRelativeMouseMode(SDL_FALSE);
}
}
@ -760,6 +765,8 @@ static void Impl_HandleMouseMotionEvent(SDL_MouseMotionEvent evt)
{
D_PostEvent(&event);
SDL_SetWindowGrab(window, SDL_TRUE);
if (SDL_SetRelativeMouseMode(SDL_TRUE) == 0)
wrapmouseok = SDL_TRUE;
HalfWarpMouse(wwidth, wheight);
}
}