Mercurial > sdl-ios-xcode

annotate docs/man3/SDL_UpdateRects.3 @ 2321:c5feceb0395e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
SetupWindowData in SDL_X11window.c was realloc()ing the display window list and incrementing numwindows even though those are being updated in functions that call this function. The result is that it is possible to get the same window added to the list twice.
author Bob Pendleton <bob@pendleton.com>
date Tue, 04 Mar 2008 23:09:28 +0000
parents 546f7c1eb755
children 1238da4a7112
rev   line source
181
e5bc29de3f0a Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
1 .TH "SDL_UpdateRects" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2 .SH "NAME"
2283
546f7c1eb755 Merged revision 3472 from SDL 1.2, fixing bug #493
Sam Lantinga <slouken@libsdl.org>
parents: 181
diff changeset
3 SDL_UpdateRects \- Makes sure the given list of rectangles is updated on the given screen\&.
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
4 .SH "SYNOPSIS"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
5 .PP
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
6 \fB#include "SDL\&.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
7 .sp
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
8 \fBvoid \fBSDL_UpdateRects\fP\fR(\fBSDL_Surface *screen, int numrects, SDL_Rect *rects\fR);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
9 .SH "DESCRIPTION"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
10 .PP
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
11 Makes sure the given list of rectangles is updated on the given screen\&. The rectangles must all be confined within the screen boundaries (no clipping is done)\&.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
12 .PP
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
13 This function should not be called while \fBscreen\fR is \fIlocked\fR\&.
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
14 .PP
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
15 .RS
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
16 \fBNote:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
17 .PP
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
18 It is adviced to call this function only once per frame, since each call has some processing overhead\&. This is no restriction since you can pass any number of rectangles each time\&.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
19 .PP
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
20 The rectangles are not automatically merged or checked for overlap\&. In general, the programmer can use his knowledge about his particular rectangles to merge them in an efficient way, to avoid overdraw\&.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
21 .RE
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
22 .SH "SEE ALSO"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
23 .PP
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
24 \fI\fBSDL_UpdateRect\fP\fR, \fI\fBSDL_Rect\fR\fR, \fI\fBSDL_Surface\fR\fR, \fI\fBSDL_LockSurface\fP\fR
181
e5bc29de3f0a Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
25 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01