Mercurial > sdl-ios-xcode
view src/audio/amigaos/SDL_ahiaudio.h @ 637:6862d4294870
te: 27 Jun 2003 21:16:01 +0100
From: Alan Swanson
Subject: [SDL] New XFree 4.3 Video Mode Patch
The current patch to fix the issues with XFree 4.3 it is a bit of
overkill to a simple problem. Default screen settings should be set in
X, not selected by SDL with environment variables. Any program or user
using non-standard or unset display modes get what they deserve :-)
If you look at the unsorted list of modes returned by X, here's mine;
1280 x 1024 @ 85.0 >
1024 x 768 @ 100.3 > USER
800 x 600 @ 125.5 > SET
640 x 480 @ 124.9 >
1280 x 1024 @ 75.0 ]
1280 x 1024 @ 60.0 ]
1280 x 960 @ 85.0 ] X11
1280 x 960 @ 60.0 ] AUTO
1152 x 864 @ 75.0 ]
1152 x 768 @ 54.8 ]
960 x 720 @ 120.0 ]
...
640 x 400 @ 85.1 ] 256k
576 x 432 @ 150.0 ] 249k PIXEL
640 x 350 @ 85.1 ] 224k COUNT
576 x 384 @ 109.6 ] 221k
...
The user set modes come first followed by X set modes which are ordered
by decreasing number of pixels and refresh.
The reason why every other library or program not using SDL was working
is due to SDL scanning the modes in reverse getting X11 provided modes
modes with the lowest refresh.
The solution is to scan forward for the first user set mode or highest X
mode. The qsort still keeps user set modes above higher refresh modes
added by X.
For the best match we still reverse search for the nearest larger size
and then try to find a higher version of it.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 28 Jun 2003 17:16:52 +0000 |
| parents | f6ffac90895c |
| children | b8d311d90021 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif #ifndef _SDL_ahiaudio_h #define _SDL_ahiaudio_h #include <exec/exec.h> #include <dos/dos.h> #ifdef __SASC #include <proto/exec.h> #else #include <inline/exec.h> #endif #include <stdlib.h> #include <string.h> #include <devices/ahi.h> #include "mydebug.h" #include "SDL_sysaudio.h" /* Hidden "this" pointer for the audio functions */ #define _THIS SDL_AudioDevice *this struct SDL_PrivateAudioData { /* The handle for the audio device */ struct AHIRequest *audio_req[2]; struct MsgPort *audio_port; Sint32 freq,type,bytespersample,size; Uint8 *mixbuf[2]; /* The app mixing buffer */ int current_buffer; Uint32 playing; }; /* Old variable names */ #define audio_port (this->hidden->audio_port) #define audio_req (this->hidden->audio_req) #define mixbuf (this->hidden->mixbuf) #define current_buffer (this->hidden->current_buffer) #define playing (this->hidden->playing) #endif /* _SDL_ahiaudio_h */