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annotate src/audio/openbsd/SDL_openbsdaudio.h @ 767:d9e79e31a7b7

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Date: Mon, 17 Nov 2003 21:59:24 -0800 From: Pete Shinners Subject: [SDL] directfb cursor patch here is a quick and dirty patch that allows directfb to change the visibility of the cursor. this display backend still has no way to change the actual cursor shape, but being able to set the cursor visibility is a simple change that should offer some benefits. the code was largely based on the cursor code for other sdl backends. and this documentation. http://directfb.org/documentation/DirectFB_Reference/IDirectFBDisplayLayer_SetCursorOpacity.html
author Sam Lantinga <slouken@libsdl.org>
date Sun, 04 Jan 2004 15:57:16 +0000
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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 #ifndef _SDL_openbsdaudio_h
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24 #define _SDL_openbsdaudio_h
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25
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26 #include "SDL_sysaudio.h"
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28 #define _THIS SDL_AudioDevice *this
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30 struct SDL_PrivateAudioData
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31 {
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32 /* The file descriptor for the audio device */
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33 int audio_fd;
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34
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35 /* The parent process id, to detect when application quits */
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36 pid_t parent;
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37
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38 /* Raw mixing buffer */
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39 Uint8 *mixbuf;
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40 int mixlen;
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41
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42 /* Support for audio timing using a timer, in addition to select() */
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43 float frame_ticks;
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44 float next_frame;
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45 };
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46
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47 #define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
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48
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49 /* Old variable names */
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50 #define audio_fd (this->hidden->audio_fd)
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51 #define parent (this->hidden->parent)
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52 #define mixbuf (this->hidden->mixbuf)
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53 #define mixlen (this->hidden->mixlen)
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54 #define frame_ticks (this->hidden->frame_ticks)
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55 #define next_frame (this->hidden->next_frame)
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57 #endif /* _SDL_openbsdaudio_h */