view 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>
date Sun, 19 Mar 2006 12:05:16 +0000
parents 355632dca928
children
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>SDL_WM_SetIcon</TITLE
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>SDL_WM_SetIcon</H1
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><H2
>Name</H2
>SDL_WM_SetIcon&nbsp;--&nbsp;Sets the icon for the display window.</DIV
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>Synopsis</H2
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><P
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><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>void <B
CLASS="FSFUNC"
>SDL_WM_SetIcon</B
></CODE
>(SDL_Surface *icon, Uint8 *mask);</CODE
></P
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><H2
>Description</H2
><P
>Sets the icon for the display window. Win32 icons must be 32x32.</P
><P
>This function must be called before the first call to 
<A
HREF="sdlsetvideomode.html"
>SDL_SetVideoMode</A
>.</P
><P
>The <TT
CLASS="PARAMETER"
><I
>mask</I
></TT
> is a bitmask that describes the shape of the
icon. If <TT
CLASS="PARAMETER"
><I
>mask</I
></TT
> is NULL, then the shape is determined by
the colorkey of <TT
CLASS="PARAMETER"
><I
>icon</I
></TT
>, if any, or makes the icon
rectangular (no transparency) otherwise.</P
><P
>If <TT
CLASS="PARAMETER"
><I
>mask</I
></TT
> is non-NULL, it points to a bitmap with bits set
where the corresponding pixel should be visible. The format of the bitmap is as
follows: Scanlines come in the usual top-down order. Each scanline consists of
(width / 8) bytes, rounded up. The most significant bit of each byte represents
the leftmost pixel.</P
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><H2
>Example</H2
><PRE
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>SDL_WM_SetIcon(SDL_LoadBMP("icon.bmp"), NULL);</PRE
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><TT
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>SDL_SetVideoMode</TT
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>SDL_WM_SetCaption</TT
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