Mercurial > sdl-ios-xcode
annotate docs/html/wm.html @ 765:4c2ba6161939
Editors Note: The original patch was modified to use SDL_Delay() instead of
nanosleep because nanosleep may not be portable to all systems
using SDL with the ALSA backend. This may be a moot point with
the switch to blocking writes anyway...
Date: Sat, 27 Dec 2003 21:47:36 +0100
From: Michel Daenzer
To: Debian Bug Tracking System
Subject: [SDL] Bug#225252: [PATCH] ALSA fixes
Package: libsdl1.2debian-all
Version: 1.2.6-2
Severity: normal
Tags: patch
For SDL 1.2.6, the ALSA backend was changed to call snd_pcm_open() with
SND_PCM_NONBLOCK. That's a good idea per se, however, it causes high CPU
usage, interrupted sound and stuttering in some games here. Taking a nanosleep
whenever snd_pcm_writei() returns -EAGAIN fixes this, but I think it's more
efficient to use blocking mode for the actual sound playback. Feedback from the
SDL and ALSA lists appreciated.
The patch also fixes the default ALSA device to be used.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 04 Jan 2004 15:40:50 +0000 |
| parents | 55f1f1b3e27d |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >Window Management</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
|
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
7 CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
| 0 | 8 "><LINK |
| 9 REL="HOME" | |
| 10 TITLE="SDL Library Documentation" | |
| 11 HREF="index.html"><LINK | |
| 12 REL="UP" | |
| 13 TITLE="SDL Reference" | |
| 14 HREF="reference.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_Overlay" | |
| 17 HREF="sdloverlay.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_WM_SetCaption" | |
| 20 HREF="sdlwmsetcaption.html"><META | |
| 21 NAME="KEYWORD" | |
| 22 CONTENT="wm"><META | |
| 23 NAME="KEYWORD" | |
| 24 CONTENT="function"></HEAD | |
| 25 ><BODY | |
| 26 CLASS="CHAPTER" | |
| 27 BGCOLOR="#FFF8DC" | |
| 28 TEXT="#000000" | |
| 29 LINK="#0000ee" | |
| 30 VLINK="#551a8b" | |
| 31 ALINK="#ff0000" | |
| 32 ><DIV | |
| 33 CLASS="NAVHEADER" | |
| 34 ><TABLE | |
| 35 WIDTH="100%" | |
| 36 BORDER="0" | |
| 37 CELLPADDING="0" | |
| 38 CELLSPACING="0" | |
| 39 ><TR | |
| 40 ><TH | |
| 41 COLSPAN="3" | |
| 42 ALIGN="center" | |
| 43 >SDL Library Documentation</TH | |
| 44 ></TR | |
| 45 ><TR | |
| 46 ><TD | |
| 47 WIDTH="10%" | |
| 48 ALIGN="left" | |
| 49 VALIGN="bottom" | |
| 50 ><A | |
| 51 HREF="sdloverlay.html" | |
| 52 >Prev</A | |
| 53 ></TD | |
| 54 ><TD | |
| 55 WIDTH="80%" | |
| 56 ALIGN="center" | |
| 57 VALIGN="bottom" | |
| 58 ></TD | |
| 59 ><TD | |
| 60 WIDTH="10%" | |
| 61 ALIGN="right" | |
| 62 VALIGN="bottom" | |
| 63 ><A | |
| 64 HREF="sdlwmsetcaption.html" | |
| 65 >Next</A | |
| 66 ></TD | |
| 67 ></TR | |
| 68 ></TABLE | |
| 69 ><HR | |
| 70 ALIGN="LEFT" | |
| 71 WIDTH="100%"></DIV | |
| 72 ><DIV | |
| 73 CLASS="CHAPTER" | |
| 74 ><H1 | |
| 75 ><A | |
| 76 NAME="WM" | |
| 77 >Chapter 7. Window Management</A | |
| 78 ></H1 | |
| 79 ><DIV | |
| 80 CLASS="TOC" | |
| 81 ><DL | |
| 82 ><DT | |
| 83 ><B | |
| 84 >Table of Contents</B | |
| 85 ></DT | |
| 86 ><DT | |
| 87 ><A | |
| 88 HREF="sdlwmsetcaption.html" | |
| 89 >SDL_WM_SetCaption</A | |
| 90 > — Sets the window tile and icon name.</DT | |
| 91 ><DT | |
| 92 ><A | |
| 93 HREF="sdlwmgetcaption.html" | |
| 94 >SDL_WM_GetCaption</A | |
| 95 > — Gets the window title and icon name.</DT | |
| 96 ><DT | |
| 97 ><A | |
| 98 HREF="sdlwmseticon.html" | |
| 99 >SDL_WM_SetIcon</A | |
| 100 > — Sets the icon for the display window.</DT | |
| 101 ><DT | |
| 102 ><A | |
| 103 HREF="sdlwmiconifywindow.html" | |
| 104 >SDL_WM_IconifyWindow</A | |
| 105 > — Iconify/Minimise the window</DT | |
| 106 ><DT | |
| 107 ><A | |
| 108 HREF="sdlwmtogglefullscreen.html" | |
| 109 >SDL_WM_ToggleFullScreen</A | |
| 110 > — Toggles fullscreen mode</DT | |
| 111 ><DT | |
| 112 ><A | |
| 113 HREF="sdlwmgrabinput.html" | |
| 114 >SDL_WM_GrabInput</A | |
| 115 > — Grabs mouse and keyboard input.</DT | |
| 116 ></DL | |
| 117 ></DIV | |
| 118 ><P | |
| 119 >SDL provides a small set of window management functions which allow applications to change their title and toggle from windowed mode to fullscreen (if available)</P | |
| 120 ></DIV | |
| 121 ><DIV | |
| 122 CLASS="NAVFOOTER" | |
| 123 ><HR | |
| 124 ALIGN="LEFT" | |
| 125 WIDTH="100%"><TABLE | |
| 126 WIDTH="100%" | |
| 127 BORDER="0" | |
| 128 CELLPADDING="0" | |
| 129 CELLSPACING="0" | |
| 130 ><TR | |
| 131 ><TD | |
| 132 WIDTH="33%" | |
| 133 ALIGN="left" | |
| 134 VALIGN="top" | |
| 135 ><A | |
| 136 HREF="sdloverlay.html" | |
| 137 >Prev</A | |
| 138 ></TD | |
| 139 ><TD | |
| 140 WIDTH="34%" | |
| 141 ALIGN="center" | |
| 142 VALIGN="top" | |
| 143 ><A | |
| 144 HREF="index.html" | |
| 145 >Home</A | |
| 146 ></TD | |
| 147 ><TD | |
| 148 WIDTH="33%" | |
| 149 ALIGN="right" | |
| 150 VALIGN="top" | |
| 151 ><A | |
| 152 HREF="sdlwmsetcaption.html" | |
| 153 >Next</A | |
| 154 ></TD | |
| 155 ></TR | |
| 156 ><TR | |
| 157 ><TD | |
| 158 WIDTH="33%" | |
| 159 ALIGN="left" | |
| 160 VALIGN="top" | |
| 161 >SDL_Overlay</TD | |
| 162 ><TD | |
| 163 WIDTH="34%" | |
| 164 ALIGN="center" | |
| 165 VALIGN="top" | |
| 166 ><A | |
| 167 HREF="reference.html" | |
| 168 >Up</A | |
| 169 ></TD | |
| 170 ><TD | |
| 171 WIDTH="33%" | |
| 172 ALIGN="right" | |
| 173 VALIGN="top" | |
| 174 >SDL_WM_SetCaption</TD | |
| 175 ></TR | |
| 176 ></TABLE | |
| 177 ></DIV | |
| 178 ></BODY | |
| 179 ></HTML | |
| 180 > |