Mercurial > sdl-ios-xcode
annotate docs/html/sdlwmseticon.html @ 1555:780fd5b61df1
Fixed bug #89
Date: Sun, 23 Oct 2005 16:39:03 +0200
From: "A. Schmid" <sahib@phreaker.net>
Subject: [SDL] no software surfaces with svgalib driver?
Hi,
I noticed that the SDL (1.2.9) svgalib driver only makes use of linear
addressable (framebuffer) video modes. On older systems (like one of
mine), linear addressable modes are often not available.
Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is
unusable, since VESA only supports framebuffering for VBE 2.0 and later.
The changes necessary to add support for software surfaces seem to be
relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see
attached patch). The code worked fine for me, but it is no more than a
proof of concept and should be reviewed (probably has a memory leak when
switching modes). It also uses the vgagl library (included in the
svgalib package) and needs to be linked against it.
-Alex
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 19 Mar 2006 12:05:16 +0000 |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_WM_SetIcon</TITLE | |
5 ><META | |
6 NAME="GENERATOR" | |
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ |
0 | 8 "><LINK |
9 REL="HOME" | |
10 TITLE="SDL Library Documentation" | |
11 HREF="index.html"><LINK | |
12 REL="UP" | |
13 TITLE="Window Management" | |
14 HREF="wm.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_WM_GetCaption" | |
17 HREF="sdlwmgetcaption.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_WM_IconifyWindow" | |
20 HREF="sdlwmiconifywindow.html"></HEAD | |
21 ><BODY | |
22 CLASS="REFENTRY" | |
23 BGCOLOR="#FFF8DC" | |
24 TEXT="#000000" | |
25 LINK="#0000ee" | |
26 VLINK="#551a8b" | |
27 ALINK="#ff0000" | |
28 ><DIV | |
29 CLASS="NAVHEADER" | |
30 ><TABLE | |
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31 SUMMARY="Header navigation table" |
0 | 32 WIDTH="100%" |
33 BORDER="0" | |
34 CELLPADDING="0" | |
35 CELLSPACING="0" | |
36 ><TR | |
37 ><TH | |
38 COLSPAN="3" | |
39 ALIGN="center" | |
40 >SDL Library Documentation</TH | |
41 ></TR | |
42 ><TR | |
43 ><TD | |
44 WIDTH="10%" | |
45 ALIGN="left" | |
46 VALIGN="bottom" | |
47 ><A | |
48 HREF="sdlwmgetcaption.html" | |
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49 ACCESSKEY="P" |
0 | 50 >Prev</A |
51 ></TD | |
52 ><TD | |
53 WIDTH="80%" | |
54 ALIGN="center" | |
55 VALIGN="bottom" | |
56 ></TD | |
57 ><TD | |
58 WIDTH="10%" | |
59 ALIGN="right" | |
60 VALIGN="bottom" | |
61 ><A | |
62 HREF="sdlwmiconifywindow.html" | |
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63 ACCESSKEY="N" |
0 | 64 >Next</A |
65 ></TD | |
66 ></TR | |
67 ></TABLE | |
68 ><HR | |
69 ALIGN="LEFT" | |
70 WIDTH="100%"></DIV | |
71 ><H1 | |
72 ><A | |
73 NAME="SDLWMSETICON" | |
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74 ></A |
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75 >SDL_WM_SetIcon</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN3582" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_WM_SetIcon -- Sets the icon for the display window.</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN3585" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN3586" |
0 | 95 ></A |
96 ><P | |
97 ></P | |
98 ><PRE | |
99 CLASS="FUNCSYNOPSISINFO" | |
100 >#include "SDL.h"</PRE | |
101 ><P | |
102 ><CODE | |
103 ><CODE | |
104 CLASS="FUNCDEF" | |
105 >void <B | |
106 CLASS="FSFUNC" | |
107 >SDL_WM_SetIcon</B | |
108 ></CODE | |
109 >(SDL_Surface *icon, Uint8 *mask);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN3592" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
181
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123 >Sets the icon for the display window. Win32 icons must be 32x32.</P |
0 | 124 ><P |
125 >This function must be called before the first call to | |
126 <A | |
127 HREF="sdlsetvideomode.html" | |
128 >SDL_SetVideoMode</A | |
129 >.</P | |
130 ><P | |
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131 >The <TT |
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132 CLASS="PARAMETER" |
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133 ><I |
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134 >mask</I |
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135 ></TT |
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136 > is a bitmask that describes the shape of the |
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137 icon. If <TT |
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138 CLASS="PARAMETER" |
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139 ><I |
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140 >mask</I |
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141 ></TT |
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142 > is NULL, then the shape is determined by |
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143 the colorkey of <TT |
0 | 144 CLASS="PARAMETER" |
145 ><I | |
146 >icon</I | |
147 ></TT | |
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148 >, if any, or makes the icon |
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149 rectangular (no transparency) otherwise.</P |
0 | 150 ><P |
151 >If <TT | |
152 CLASS="PARAMETER" | |
153 ><I | |
154 >mask</I | |
155 ></TT | |
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156 > is non-NULL, it points to a bitmap with bits set |
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157 where the corresponding pixel should be visible. The format of the bitmap is as |
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158 follows: Scanlines come in the usual top-down order. Each scanline consists of |
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159 (width / 8) bytes, rounded up. The most significant bit of each byte represents |
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160 the leftmost pixel.</P |
0 | 161 ></DIV |
162 ><DIV | |
163 CLASS="REFSECT1" | |
164 ><A | |
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165 NAME="AEN3603" |
0 | 166 ></A |
167 ><H2 | |
168 >Example</H2 | |
169 ><PRE | |
170 CLASS="PROGRAMLISTING" | |
171 >SDL_WM_SetIcon(SDL_LoadBMP("icon.bmp"), NULL);</PRE | |
172 ></DIV | |
173 ><DIV | |
174 CLASS="REFSECT1" | |
175 ><A | |
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176 NAME="AEN3606" |
0 | 177 ></A |
178 ><H2 | |
179 >See Also</H2 | |
180 ><P | |
181 ><A | |
182 HREF="sdlsetvideomode.html" | |
183 ><TT | |
184 CLASS="FUNCTION" | |
185 >SDL_SetVideoMode</TT | |
186 ></A | |
187 >, | |
188 <A | |
189 HREF="sdlwmsetcaption.html" | |
190 ><TT | |
191 CLASS="FUNCTION" | |
192 >SDL_WM_SetCaption</TT | |
193 ></A | |
194 ></P | |
195 ></DIV | |
196 ><DIV | |
197 CLASS="NAVFOOTER" | |
198 ><HR | |
199 ALIGN="LEFT" | |
200 WIDTH="100%"><TABLE | |
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201 SUMMARY="Footer navigation table" |
0 | 202 WIDTH="100%" |
203 BORDER="0" | |
204 CELLPADDING="0" | |
205 CELLSPACING="0" | |
206 ><TR | |
207 ><TD | |
208 WIDTH="33%" | |
209 ALIGN="left" | |
210 VALIGN="top" | |
211 ><A | |
212 HREF="sdlwmgetcaption.html" | |
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213 ACCESSKEY="P" |
0 | 214 >Prev</A |
215 ></TD | |
216 ><TD | |
217 WIDTH="34%" | |
218 ALIGN="center" | |
219 VALIGN="top" | |
220 ><A | |
221 HREF="index.html" | |
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222 ACCESSKEY="H" |
0 | 223 >Home</A |
224 ></TD | |
225 ><TD | |
226 WIDTH="33%" | |
227 ALIGN="right" | |
228 VALIGN="top" | |
229 ><A | |
230 HREF="sdlwmiconifywindow.html" | |
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231 ACCESSKEY="N" |
0 | 232 >Next</A |
233 ></TD | |
234 ></TR | |
235 ><TR | |
236 ><TD | |
237 WIDTH="33%" | |
238 ALIGN="left" | |
239 VALIGN="top" | |
240 >SDL_WM_GetCaption</TD | |
241 ><TD | |
242 WIDTH="34%" | |
243 ALIGN="center" | |
244 VALIGN="top" | |
245 ><A | |
246 HREF="wm.html" | |
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247 ACCESSKEY="U" |
0 | 248 >Up</A |
249 ></TD | |
250 ><TD | |
251 WIDTH="33%" | |
252 ALIGN="right" | |
253 VALIGN="top" | |
254 >SDL_WM_IconifyWindow</TD | |
255 ></TR | |
256 ></TABLE | |
257 ></DIV | |
258 ></BODY | |
259 ></HTML | |
260 > |