src/events/SDL_resize.c
author Ben Avison <bavison@riscosopen.org>
Thu, 31 Oct 2019 14:00:28 +0300
branchSDL-1.2
changeset 13219 4f88e197acad
parent 6137 4720145f848b
permissions -rw-r--r--
ARM: Create configure option --enable-arm-neon to govern assembly optimizations
---
configure.in | 39 +++++++++++++++++++++++++++++++++++++++
include/SDL_config.h.in | 1 +
include/SDL_cpuinfo.h | 3 +++
src/cpuinfo/SDL_cpuinfo.c | 37 +++++++++++++++++++++++++++++++++++++
4 files changed, 80 insertions(+)
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2012 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Lesser General Public
     7     License as published by the Free Software Foundation; either
     8     version 2.1 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Lesser General Public License for more details.
    14 
    15     You should have received a copy of the GNU Lesser General Public
    16     License along with this library; if not, write to the Free Software
    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 */
    22 #include "SDL_config.h"
    23 
    24 /* Resize event handling code for SDL */
    25 
    26 #include "SDL_events.h"
    27 #include "SDL_events_c.h"
    28 #include "../video/SDL_sysvideo.h"
    29 
    30 
    31 /* Keep the last resize event so we don't post duplicates */
    32 static struct {
    33 	int w;
    34 	int h;
    35 } last_resize;
    36 
    37 /* This is global for SDL_eventloop.c */
    38 int SDL_PrivateResize(int w, int h)
    39 {
    40 	int posted;
    41 	SDL_Event events[32];
    42 
    43 	/* See if this event would change the video surface */
    44 	if ( !w || !h ||
    45 	     (( last_resize.w == w ) && ( last_resize.h == h )) ||
    46 	     !SDL_VideoSurface ) {
    47 		 return(0);
    48 	}
    49 	last_resize.w = w;
    50 	last_resize.h = h;
    51 
    52 	SDL_SetMouseRange(w, h);
    53 
    54 	/* Pull out all old resize events */
    55 	SDL_PeepEvents(events, sizeof(events)/sizeof(events[0]),
    56 	                    SDL_GETEVENT, SDL_VIDEORESIZEMASK);
    57 
    58 	/* Post the event, if desired */
    59 	posted = 0;
    60 	if ( SDL_ProcessEvents[SDL_VIDEORESIZE] == SDL_ENABLE ) {
    61 		SDL_Event event;
    62 		event.type = SDL_VIDEORESIZE;
    63 		event.resize.w = w;
    64 		event.resize.h = h;
    65 		if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
    66 			posted = 1;
    67 			SDL_PushEvent(&event);
    68 		}
    69 	}
    70 	return(posted);
    71 }