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VIDEO: Fix vid_draw to copy drawing data before returning when drawing is deferred.

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Using SDL2 the draw operations are performed in a separate thread and thus the data must be cached while the request is passed to the separate thread while control returns to the caller.
This commit is contained in:
Mark Pizzolato 2015-09-20 13:38:11 -07:00
parent 324839cee9
commit 13bb3356f5
1 changed files with 13 additions and 3 deletions
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16
sim_video.c
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@ -389,6 +389,7 @@ for (i = 0; i < h; i++)
#else
SDL_Event user_event;
SDL_Rect *vid_dst;
uint32 *vid_data;
sim_debug (SIM_VID_DBG_VIDEO, vid_dev, "vid_draw(%d, %d, %d, %d)\n", x, y, w, h);
@ -397,11 +398,17 @@ vid_dst->x = x;
vid_dst->y = y;
vid_dst->w = w;
vid_dst->h = h;
vid_data = (uint32 *)malloc (w*h*sizeof(*buf));
memcpy (vid_data, buf, w*h*sizeof(*buf));
user_event.type = SDL_USEREVENT;
user_event.user.code = EVENT_DRAW;
user_event.user.data1 = (void *)vid_dst;
user_event.user.data2 = (void *)buf;
SDL_PushEvent (&user_event);
user_event.user.data2 = (void *)vid_data;
if (SDL_PushEvent (&user_event) < 0) {
sim_printf ("%s: vid_draw() SDL_PushEvent error: %s\n", sim_dname(vid_dev), SDL_GetError());
free (vid_dst);
free (vid_data);
}
#endif
}
@ -432,8 +439,10 @@ user_event.user.code = EVENT_CURSOR;
user_event.user.data1 = cursor;
user_event.user.data2 = (void *)((size_t)visible);
if (SDL_PushEvent (&user_event) < 0)
if (SDL_PushEvent (&user_event) < 0) {
sim_printf ("%s: vid_set_cursor() SDL_PushEvent error: %s\n", sim_dname(vid_dev), SDL_GetError());
SDL_FreeCursor (cursor);
}
return SCPE_OK;
}
@ -1146,6 +1155,7 @@ if (SDL_UpdateTexture(vid_texture, vid_dst, buf, vid_dst->w*sizeof(*buf)))
sim_printf ("%s: vid_draw() - SDL_UpdateTexture error: %s\n", sim_dname(vid_dev), SDL_GetError());
free (vid_dst);
free (buf);
event->data1 = NULL;
}
#endif