Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_UserEvent.3 @ 1554:0ca607a5d173
Fixed bug #84
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 12:04:40 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
| rev | line source |
|---|---|
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
1 .TH "SDL_UserEvent" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
| 3 SDL_UserEvent\- A user-defined event type | |
| 4 .SH "STRUCTURE DEFINITION" | |
| 5 .PP | |
| 6 .nf | |
| 7 \f(CWtypedef struct{ | |
| 8 Uint8 type; | |
| 9 int code; | |
| 10 void *data1; | |
| 11 void *data2; | |
| 12 } SDL_UserEvent;\fR | |
| 13 .fi | |
| 14 .PP | |
| 15 .SH "STRUCTURE DATA" | |
| 16 .TP 20 | |
| 17 \fBtype\fR | |
| 18 \fBSDL_USEREVENT\fP through to \fBSDL_NUMEVENTS-1\fP | |
| 19 .TP 20 | |
| 20 \fBcode\fR | |
| 21 User defined event code | |
| 22 .TP 20 | |
| 23 \fBdata1\fR | |
| 24 User defined data pointer | |
| 25 .TP 20 | |
| 26 \fBdata2\fR | |
| 27 User defined data pointer | |
| 28 .SH "DESCRIPTION" | |
| 29 .PP | |
| 30 \fBSDL_UserEvent\fR is in the \fBuser\fR member of the structure \fI\fBSDL_Event\fR\fR\&. This event is unique, it is never created by SDL but only by the user\&. The event can be pushed onto the event queue using \fI\fBSDL_PushEvent\fP\fR\&. The contents of the structure members or completely up to the programmer, the only requirement is that \fBtype\fR is a value from \fBSDL_USEREVENT\fP to \fBSDL_NUMEVENTS-1\fP (inclusive)\&. | |
| 31 .SH "EXAMPLES" | |
| 32 .PP | |
| 33 .PP | |
| 34 .nf | |
| 35 \f(CWSDL_Event event; | |
| 36 | |
| 37 event\&.type = SDL_USEREVENT; | |
| 38 event\&.user\&.code = my_event_code; | |
| 39 event\&.user\&.data1 = significant_data; | |
| 40 event\&.user\&.data2 = 0; | |
| 41 SDL_PushEvent(&event);\fR | |
| 42 .fi | |
| 43 .PP | |
| 44 .SH "SEE ALSO" | |
| 45 .PP | |
| 46 \fI\fBSDL_Event\fR\fR, \fI\fBSDL_PushEvent\fP\fR | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
47 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00 |