Mercurial > sdl-ios-xcode
annotate src/events/SDL_resize.c @ 1257:448a9a64537b
[PATCH] SDL_GetVideoMode() does not find best mode, part 2
Following commit 1.51, I come accross a problem when SDL must choose between
several video modes that could suit the one asked.
If I ask 320x240 with this list:
768x480 768x240 640x400 640x200 384x480 384x240 320x400 320x200
The smallest selectables modes are 384x240 and 320x400. And SDL choose the later
in this list, but 384x240 is more suitable. So I added a check to compare
the pixel count (surface) of modes, and select the one which has the smallest
pixel count.
In my example, 384x240 has 92160 pixels, and 320x400 has 128000 pixels. So now
SDL will choose 384x240 for the asked 320x240 mode.
| author | Patrice Mandin <patmandin@gmail.com> |
|---|---|
| date | Thu, 19 Jan 2006 21:28:52 +0000 |
| parents | 173c063d4f55 |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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b8d311d90021
Updated copyright information for 2004 (Happy New Year!)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 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 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* Resize event handling code for SDL */ | |
| 29 | |
| 30 #include "SDL_events.h" | |
| 31 #include "SDL_events_c.h" | |
| 32 #include "SDL_sysvideo.h" | |
| 33 | |
| 34 | |
| 35 /* Keep the last resize event so we don't post duplicates */ | |
| 36 static struct { | |
| 37 int w; | |
| 38 int h; | |
| 39 } last_resize; | |
| 40 | |
| 41 /* This is global for SDL_eventloop.c */ | |
| 42 int SDL_PrivateResize(int w, int h) | |
| 43 { | |
| 44 int posted; | |
| 45 SDL_Event events[32]; | |
| 46 | |
| 47 /* See if this event would change the video surface */ | |
| 1190 | 48 if ( !w || !h |
| 49 #ifndef __OS2__ | |
| 50 || ((last_resize.w == w) && (last_resize.h == h)) | |
| 51 #endif | |
| 52 ) { | |
| 0 | 53 return(0); |
| 54 } | |
| 55 last_resize.w = w; | |
| 56 last_resize.h = h; | |
| 57 if ( ! SDL_VideoSurface || | |
| 58 ((w == SDL_VideoSurface->w) && (h == SDL_VideoSurface->h)) ) { | |
| 59 return(0); | |
| 60 } | |
| 61 | |
| 62 /* Pull out all old resize events */ | |
| 63 SDL_PeepEvents(events, sizeof(events)/sizeof(events[0]), | |
| 64 SDL_GETEVENT, SDL_VIDEORESIZEMASK); | |
| 65 | |
| 66 /* Post the event, if desired */ | |
| 67 posted = 0; | |
| 68 if ( SDL_ProcessEvents[SDL_VIDEORESIZE] == SDL_ENABLE ) { | |
| 69 SDL_Event event; | |
| 70 event.type = SDL_VIDEORESIZE; | |
| 71 event.resize.w = w; | |
| 72 event.resize.h = h; | |
| 73 if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) { | |
| 74 posted = 1; | |
| 75 SDL_PushEvent(&event); | |
| 76 } | |
| 77 } | |
| 78 return(posted); | |
| 79 } |