Mercurial > sdl-ios-xcode
view docs/html/sdldisplayyuvoverlay.html @ 4347:38f22ed3a433 SDL-1.2
Option to fix bug #851
For some people setting the period size works better (and is what SDL 1.2.13 did), but for most people it's the same or worse. You can use an environment variable to pick which one you want.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 17 Oct 2009 06:55:17 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_DisplayYUVOverlay</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="Video" HREF="video.html"><LINK REL="PREVIOUS" TITLE="SDL_UnlockYUVOverlay" HREF="sdlunlockyuvoverlay.html"><LINK REL="NEXT" TITLE="SDL_FreeYUVOverlay" HREF="sdlfreeyuvoverlay.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sdlunlockyuvoverlay.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlfreeyuvoverlay.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLDISPLAYYUVOVERLAY" ></A >SDL_DisplayYUVOverlay</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN2908" ></A ><H2 >Name</H2 >SDL_DisplayYUVOverlay -- Blit the overlay to the display</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN2911" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN2912" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >int <B CLASS="FSFUNC" >SDL_DisplayYUVOverlay</B ></CODE >(SDL_Overlay *overlay, SDL_Rect *dstrect);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN2918" ></A ><H2 >Description</H2 ><P >Blit the <TT CLASS="PARAMETER" ><I >overlay</I ></TT > to the surface specified when it was <A HREF="sdlcreateyuvoverlay.html" >created</A >. The <A HREF="sdlrect.html" ><SPAN CLASS="STRUCTNAME" >SDL_Rect</SPAN ></A > structure, <TT CLASS="PARAMETER" ><I >dstrect</I ></TT >, specifies the position and size of the destination. If the <TT CLASS="PARAMETER" ><I >dstrect</I ></TT > is a larger or smaller than the overlay then the overlay will be scaled, this is optimized for 2x scaling.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN2927" ></A ><H2 >Return Values</H2 ><P >Returns 0 on success</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN2930" ></A ><H2 >See Also</H2 ><P ><A HREF="sdloverlay.html" ><SPAN CLASS="STRUCTNAME" >SDL_Overlay</SPAN ></A >, <A HREF="sdlcreateyuvoverlay.html" ><TT CLASS="FUNCTION" >SDL_CreateYUVOverlay</TT ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlunlockyuvoverlay.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlfreeyuvoverlay.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_UnlockYUVOverlay</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="video.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_FreeYUVOverlay</TD ></TR ></TABLE ></DIV ></BODY ></HTML >