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Protect the SDL events queue when changing the cursor map in SheepShaver,

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aka fix "Xlib: unexpected async reply" messages in SDL/x11 builds.
This commit is contained in:
gbeauche 2005-11-29 23:20:31 +00:00
parent 42d6693435
commit 41fb85a3e7
1 changed files with 13 additions and 0 deletions
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13
BasiliskII/src/SDL/video_sdl.cpp
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@ -135,6 +135,11 @@ static SDL_Color sdl_palette[256]; // Color palette to be used as CLUT and g
static bool sdl_palette_changed = false; // Flag: Palette changed, redraw thread must set new colors
static const int sdl_eventmask = SDL_MOUSEBUTTONDOWNMASK | SDL_MOUSEBUTTONUPMASK | SDL_MOUSEMOTIONMASK | SDL_KEYUPMASK | SDL_KEYDOWNMASK | SDL_VIDEOEXPOSEMASK | SDL_QUITMASK;
// Mutex to protect SDL events
static SDL_mutex *sdl_events_lock = NULL;
#define LOCK_EVENTS SDL_LockMutex(sdl_events_lock)
#define UNLOCK_EVENTS SDL_UnlockMutex(sdl_events_lock)
// Mutex to protect palette
static SDL_mutex *sdl_palette_lock = NULL;
#define LOCK_PALETTE SDL_LockMutex(sdl_palette_lock)
@ -1057,6 +1062,8 @@ bool VideoInit(bool classic)
#endif
// Create Mutexes
if ((sdl_events_lock = SDL_CreateMutex()) == NULL)
return false;
if ((sdl_palette_lock = SDL_CreateMutex()) == NULL)
return false;
if ((frame_buffer_lock = SDL_CreateMutex()) == NULL)
@ -1282,6 +1289,8 @@ void VideoExit(void)
SDL_DestroyMutex(frame_buffer_lock);
if (sdl_palette_lock)
SDL_DestroyMutex(sdl_palette_lock);
if (sdl_events_lock)
SDL_DestroyMutex(sdl_events_lock);
}
@ -1451,8 +1460,10 @@ int16 video_mode_change(VidLocals *csSave, uint32 ParamPtr)
void SDL_monitor_desc::switch_to_current_mode(void)
{
// Close and reopen display
LOCK_EVENTS;
video_close();
video_open();
UNLOCK_EVENTS;
if (drv == NULL) {
ErrorAlert(STR_OPEN_WINDOW_ERR);
@ -2074,10 +2085,12 @@ static inline void do_video_refresh(void)
// Set new cursor image if it was changed
if (cursor_changed && sdl_cursor) {
cursor_changed = false;
LOCK_EVENTS;
SDL_FreeCursor(sdl_cursor);
sdl_cursor = SDL_CreateCursor(MacCursor + 4, MacCursor + 36, 16, 16, MacCursor[2], MacCursor[3]);
if (sdl_cursor)
SDL_SetCursor(sdl_cursor);
UNLOCK_EVENTS;
}
#endif