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More general fix for bug #189 The clipping is done at a higher level, and the low level functions are passed clipped rectangles. Drivers which don't support source clipping have not been changed, so the image will be squished instead of clipped, but at least they will no longer crash when the destination rect was out of bounds.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 17 Apr 2006 06:47:23 +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"
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><TR
><TH
COLSPAN="3"
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>SDL Library Documentation</TH
></TR
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><TD
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><A
HREF="sdlunlockyuvoverlay.html"
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>Prev</A
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></TD
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></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&nbsp;--&nbsp;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
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>Prev</A
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>Home</A
></TD
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>Next</A
></TD
></TR
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><TD
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>SDL_UnlockYUVOverlay</TD
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>Up</A
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>