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[PATCH] SDL_GetVideoMode() does not find best mode, part 2 Following commit 1.51, I come accross a problem when SDL must choose between several video modes that could suit the one asked. If I ask 320x240 with this list: 768x480 768x240 640x400 640x200 384x480 384x240 320x400 320x200 The smallest selectables modes are 384x240 and 320x400. And SDL choose the later in this list, but 384x240 is more suitable. So I added a check to compare the pixel count (surface) of modes, and select the one which has the smallest pixel count. In my example, 384x240 has 92160 pixels, and 320x400 has 128000 pixels. So now SDL will choose 384x240 for the asked 320x240 mode.
author Patrice Mandin <patmandin@gmail.com>
date Thu, 19 Jan 2006 21:28:52 +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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><TABLE
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><TD
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><TT
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>SDL_INIT_TIMER</TT
></TD
><TD
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>Initializes the <A
HREF="time.html"
>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
HREF="audio.html"
>audio</A
> subsystem.</TD
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><TD
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><TT
CLASS="LITERAL"
>SDL_INIT_VIDEO</TT
></TD
><TD
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>Initializes the <A
HREF="video.html"
>video</A
> subsystem.</TD
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><TR
><TD
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><TT
CLASS="LITERAL"
>SDL_INIT_CDROM</TT
></TD
><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_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
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><TT
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>SDL_INIT_NOPARACHUTE</TT
></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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></TBODY
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><P
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></DIV
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><DIV
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><A
NAME="AEN494"
></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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></A
><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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