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Date: Mon, 13 Dec 2004 21:28:18 -0500 From: Jonathan Atkins Subject: [SDL] SDL_SaveBMP width bugfix this fixes the pitch versus width difference that can happen (especially for 8bit and 24bit (with the exact RGBAmasks) surfaces) when you use SDL_SaveBMP. The problem was the pitch was used instead of the width, which in some cases is much wider than the screen area you really want to save...making for ugly crud on the saved image borders. This code has been tested with & without pitch overhangs...and with the right masks for 24 bit surfaces. I tested 8,15,16,24,32-0RGB,32-RGBA(with no SDL_SRCALPHA flag).
author Sam Lantinga <slouken@libsdl.org>
date Tue, 14 Dec 2004 06:20:49 +0000
parents 355632dca928
children
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<HTML
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>SDL_Init</TITLE
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><H1
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>SDL_Init</H1
><DIV
CLASS="REFNAMEDIV"
><A
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></A
><H2
>Name</H2
>SDL_Init&nbsp;--&nbsp;Initializes SDL</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
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></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
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><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>SDL_Init</B
></CODE
>(Uint32 flags);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
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></A
><H2
>Description</H2
><P
>Initializes SDL. This should be called before all other SDL functions. The <TT
CLASS="PARAMETER"
><I
>flags</I
></TT
> parameter specifies what part(s) of SDL to initialize.</P
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><TT
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>SDL_INIT_TIMER</TT
></TD
><TD
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>Initializes the <A
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>timer</A
> subsystem.</TD
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><TT
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>SDL_INIT_AUDIO</TT
></TD
><TD
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>Initializes the <A
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>audio</A
> subsystem.</TD
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><TT
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>SDL_INIT_VIDEO</TT
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>Initializes the <A
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> subsystem.</TD
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><TT
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>SDL_INIT_CDROM</TT
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><TT
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>SDL_INIT_JOYSTICK</TT
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><TD
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>Initializes the <A
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> subsystem.</TD
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><TT
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>SDL_INIT_EVERYTHING</TT
></TD
><TD
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>Initialize all of the above.</TD
></TR
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><TT
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>SDL_INIT_NOPARACHUTE</TT
></TD
><TD
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>Prevents SDL from catching fatal signals.</TD
></TR
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><TT
CLASS="LITERAL"
>SDL_INIT_EVENTTHREAD</TT
></TD
><TD
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>&nbsp;</TD
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><P
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><A
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></A
><H2
>Return Value</H2
><P
>Returns <SPAN
CLASS="RETURNVALUE"
>-1</SPAN
> on an error or <SPAN
CLASS="RETURNVALUE"
>0</SPAN
> on success.</P
></DIV
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><H2
>See Also</H2
><P
><A
HREF="sdlquit.html"
><TT
CLASS="FUNCTION"
>SDL_Quit</TT
></A
>,
<A
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><TT
CLASS="FUNCTION"
>SDL_InitSubSystem</TT
></A
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