Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_UpdateRects.3 @ 4165:3b8ac3d311a2 SDL-1.2
Hello.
This patch provides basic support for video on the Sony PS3
Linux framebuffer. Scaling, format-conversion, and drawing is
done from the SPEs, so there is little performance impact to
PPE applications. This is by no means production quality code,
but it is a very good start and a good example of how to use the
PS3's hardware capabilities to accelerate video playback on
the box.
The driver has been verified to work with ffplay, mplayer and xine.
This piece of software has been developed at the IBM R&D Lab
in Boeblingen, Germany and is now returned to the community.
Enjoy !
Signed-off-by: D.Herrendoerfer < d.herrendoerfer [at] de [dot] ibm [dot] com >
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 02 Apr 2009 04:06:55 +0000 |
| parents | 4e3b250c950e |
| children | 1238da4a7112 |
| rev | line source |
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1 .TH "SDL_UpdateRects" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
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3 SDL_UpdateRects \- Makes sure the given list of rectangles is updated on the given screen\&. |
| 0 | 4 .SH "SYNOPSIS" |
| 5 .PP | |
| 6 \fB#include "SDL\&.h" | |
| 7 .sp | |
| 8 \fBvoid \fBSDL_UpdateRects\fP\fR(\fBSDL_Surface *screen, int numrects, SDL_Rect *rects\fR); | |
| 9 .SH "DESCRIPTION" | |
| 10 .PP | |
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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)\&. |
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12 .PP |
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13 This function should not be called while \fBscreen\fR is \fIlocked\fR\&. |
| 0 | 14 .PP |
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15 .RS |
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16 \fBNote: |
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17 .PP |
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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\&. |
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19 .PP |
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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\&. |
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21 .RE |
| 0 | 22 .SH "SEE ALSO" |
| 23 .PP | |
| 24 \fI\fBSDL_UpdateRect\fP\fR, \fI\fBSDL_Rect\fR\fR, \fI\fBSDL_Surface\fR\fR, \fI\fBSDL_LockSurface\fP\fR | |
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25 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |