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Added new docs for SDL 1.2.1

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extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%4056
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Sam Lantinga 2001-06-10 19:31:57 +00:00
parent 16ce3048d6
commit 028b0ae934
371 changed files with 3272 additions and 2287 deletions
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42
docs/html/sdlblitsurface.html
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@ -4,7 +4,7 @@
>SDL_BlitSurface</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.61
CONTENT="Modular DocBook HTML Stylesheet Version 1.64
"><LINK
REL="HOME"
TITLE="SDL Library Documentation"
@ -73,7 +73,7 @@ NAME="SDLBLITSURFACE"
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN1806"
NAME="AEN1883"
></A
><H2
>Name</H2
@ -81,14 +81,14 @@ NAME="AEN1806"
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN1809"
NAME="AEN1886"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN1810"
NAME="AEN1887"
></A
><P
></P
@ -112,7 +112,7 @@ CLASS="FSFUNC"
><DIV
CLASS="REFSECT1"
><A
NAME="AEN1816"
NAME="AEN1893"
></A
><H2
>Description</H2
@ -170,27 +170,37 @@ CLASS="PARAMETER"
> is not modified).</P
><P
>The blit function should not be called on a locked surface.</P
><DIV
CLASS="NOTE"
><BLOCKQUOTE
CLASS="NOTE"
><P
><B
>Note: </B
>The results of blitting operations vary greatly depending on whether <TT
CLASS="LITERAL"
>SDL_SRCAPLHA</TT
> is set or not. See <A
HREF="sdlsetalpha.html"
>SDL_SetAlpha</A
>.</P
></BLOCKQUOTE
></DIV
> for an explaination of how this affects your results. Colorkeying and alpha attributes also interact with surface blitting, as the following pseudo-code should hopefully explain.
<PRE
CLASS="PROGRAMLISTING"
>if (source surface has SDL_SRCALPHA set) {
if (source surface has alpha channel (that is, format-&#62;Amask != 0))
blit using per-pixel alpha, ignoring any colour key
else {
if (source surface has SDL_SRCCOLORKEY set)
blit using the colour key AND the per-surface alpha value
else
blit using the per-surface alpha value
}
} else {
if (source surface has SDL_SRCCOLORKEY set)
blit using the colour key
else
ordinary opaque rectangular blit
}</PRE
></P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN1835"
NAME="AEN1912"
></A
><H2
>Return Value</H2
@ -226,7 +236,7 @@ have access to the video memory again.</P
><DIV
CLASS="REFSECT1"
><A
NAME="AEN1843"
NAME="AEN1920"
></A
><H2
>See Also</H2