annotate src/audio/amigaos/SDL_ahiaudio.h @ 615:7ec821f3cbd0

Date: Thu, 17 Apr 2003 23:27:34 -0400 From: Darrell Walisser Subject: Yet another OS X cursor bug The synopsis: 1. Call SDL_ShowCursor(0); 2. Call SDL_SetVideoMode(); 3. Call SDL_GetEvent(); 3. Call SDL_ShowCursor(1); The result: Sometimes the cursor doesn't come back! Ack! Oddly enough, it does come back when mousing over the dock or clicking in the menu bar. But that's besides the point. The reason why this is happening is a flaw in the handling of activation/deactivation events. The short explanation is that the HideCursor() and ShowCursor() calls must be balanced, but if the cursor was initially hidden, HideCursor() was called again on the activate event - so now the next ShowCursor() fails (as does the next, and the next, for some reason). So, here's the patch. All it does is keep track of the HideCursor()/ShowCursor() calls so that they will always be balanced.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 20 Apr 2003 05:41:16 +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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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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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 */