Mercurial > sdl-ios-xcode
view docs/man3/SDL_DisplayYUVOverlay.3 @ 4355:9b464226e541 SDL-1.2
Fixed bug #855
Ludwig Nussel 2009-10-18 06:31:52 PDT
an mprotect call was added to fix bug 528. However that results in a buffer
that allows writing and code execution. Ie the no-execute security features of
modern operating systems are defeated this way. Two mprotect calls are needed.
One to make the buffer executable but not writeable when done and another one
to make the buffer writeable again if the content needs to be changed.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 18 Oct 2009 17:31:37 +0000 |
| parents | 1238da4a7112 |
| children |
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.TH "SDL_DisplayYUVOverlay" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" .SH "NAME" SDL_DisplayYUVOverlay \- Blit the overlay to the display .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBint \fBSDL_DisplayYUVOverlay\fP\fR(\fBSDL_Overlay *overlay, SDL_Rect *dstrect\fR); .SH "DESCRIPTION" .PP Blit the \fBoverlay\fR to the surface specified when it was \fIcreated\fR\&. The \fI\fBSDL_Rect\fR\fR structure, \fBdstrect\fR, specifies the position and size of the destination\&. If the \fBdstrect\fR is a larger or smaller than the overlay then the overlay will be scaled, this is optimized for 2x scaling\&. .SH "RETURN VALUES" .PP Returns 0 on success .SH "SEE ALSO" .PP \fI\fBSDL_Overlay\fR\fR, \fI\fBSDL_CreateYUVOverlay\fP\fR .\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01