annotate 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
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 #ifndef _SDL_ahiaudio_h
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29 #define _SDL_ahiaudio_h
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31 #include <exec/exec.h>
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32 #include <dos/dos.h>
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33 #ifdef __SASC
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34 #include <proto/exec.h>
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35 #else
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36 #include <inline/exec.h>
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37 #endif
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38 #include <stdlib.h>
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39 #include <string.h>
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40
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41 #include <devices/ahi.h>
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42 #include "mydebug.h"
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43 #include "SDL_sysaudio.h"
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44
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45 /* Hidden "this" pointer for the audio functions */
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46 #define _THIS SDL_AudioDevice *this
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47
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48 struct SDL_PrivateAudioData {
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49 /* The handle for the audio device */
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50 struct AHIRequest *audio_req[2];
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51 struct MsgPort *audio_port;
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52 Sint32 freq,type,bytespersample,size;
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53 Uint8 *mixbuf[2]; /* The app mixing buffer */
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54 int current_buffer;
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55 Uint32 playing;
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56 };
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57
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58 /* Old variable names */
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59 #define audio_port (this->hidden->audio_port)
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60 #define audio_req (this->hidden->audio_req)
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61 #define mixbuf (this->hidden->mixbuf)
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62 #define current_buffer (this->hidden->current_buffer)
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63 #define playing (this->hidden->playing)
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64
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65 #endif /* _SDL_ahiaudio_h */