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view docs/html/sdlglattr.html @ 3917:8a3a0f1179f3 SDL-1.2

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Patched fbcon to compile on newer Linux kernels that don't #define PAGE_SIZE, since a memory page's size may vary on various architectures and kernel configurations. Will use getpagesize() if it exists, the PAGE_SIZE #define from older kernels if that doesn't, and #error out if that's not there either...but it's probably 4096 in that case. We may revisit this. Fixes Bugzilla #392.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 15 Feb 2007 23:50:45 +0000
parents 355632dca928
children
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<HTML
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><TITLE
>SDL_GLattr</TITLE
><META
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><H1
><A
NAME="SDLGLATTR"
></A
>SDL_GLattr</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN2971"
></A
><H2
>Name</H2
>SDL_GLattr&nbsp;--&nbsp;SDL GL Attributes</DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN2974"
></A
><H2
>Attributes</H2
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN2976"
></A
><P
></P
><TABLE
BORDER="0"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_GL_RED_SIZE</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Size of the framebuffer red component, in bits</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_GL_GREEN_SIZE</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Size of the framebuffer green component, in bits</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_GL_BLUE_SIZE</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Size of the framebuffer blue component, in bits</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_GL_ALPHA_SIZE</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Size of the framebuffer alpha component, in bits</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_GL_DOUBLEBUFFER</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>0 or 1, enable or disable double buffering</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_GL_BUFFER_SIZE</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Size of the framebuffer, in bits</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_GL_DEPTH_SIZE</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Size of the depth buffer, in bits</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_GL_STENCIL_SIZE</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Size of the stencil buffer, in bits</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_GL_ACCUM_RED_SIZE</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Size of the accumulation buffer red component, in bits</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_GL_ACCUM_GREEN_SIZE</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Size of the accumulation buffer green component, in bits</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_GL_ACCUM_BLUE_SIZE</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Size of the accumulation buffer blue component, in bits</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_GL_ACCUM_ALPHA_SIZE</TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Size of the accumulation buffer alpha component, in bits</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3027"
></A
><H2
>Description</H2
><P
>While you can set most OpenGL attributes normally, the attributes list above must be known <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>before</I
></SPAN
> SDL sets the video mode. These attributes a set and read with <A
HREF="sdlglsetattribute.html"
><TT
CLASS="FUNCTION"
>SDL_GL_SetAttribute</TT
></A
> and <A
HREF="sdlglgetattribute.html"
><TT
CLASS="FUNCTION"
>SDL_GL_GetAttribute</TT
></A
>.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3035"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlglsetattribute.html"
><TT
CLASS="FUNCTION"
>SDL_GL_SetAttribute</TT
></A
>,
<A
HREF="sdlglgetattribute.html"
><TT
CLASS="FUNCTION"
>SDL_GL_GetAttribute</TT
></A
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