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Date: Sun, 22 Mar 2009 12:52:29 +0000 From: Luke Benstead Subject: OpenGL 3.0 Context Creation I've attached a patch which implements OpenGL 3.x context creation on the latest SVN. I've added two options to SDL_GL_SetAttribute, these are SDL_GL_CONTEXT_MAJOR_VERSION and SDL_GL_CONTEXT_MINOR_VERSION. These default to 2 and 1 respectively. If the major version is less than 3 then the current context creation method is used, otherwise the appropriate new context creation function is called (depending on the platform). Sample code: if (SDL_Init(SDL_INIT_VIDEO) != 0) { printf("Unable to initialize SDL: %s\n", SDL_GetError()); return 1; } SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3); //Without these 2 lines, SDL will create a GL 2.x context SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0); SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); SDL_Surface* screen = SDL_SetVideoMode( 640, 480, 16, SDL_OPENGL | SDL_FULLSCREEN ); I've implemented context creation on both Win32 and X and run basic tests on both. This patch doesn't provide access to all the options allowed by the new context creation (e.g. shared contexts, forward compatible contexts) but they can be added pretty easily.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 24 Mar 2009 10:43:53 +0000
parents 355632dca928
children
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<HTML
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>SDL_SysWMEvent</TITLE
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>SDL_SysWMEvent</H1
><DIV
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><H2
>Name</H2
>SDL_SysWMEvent&nbsp;--&nbsp;Platform-dependent window manager event.</DIV
><DIV
CLASS="REFSECT1"
><A
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></A
><H2
>Description</H2
><P
>The system window manager event contains a pointer to system-specific 
information about unknown window manager events.  If you enable this event
using 
<A
HREF="sdleventstate.html"
><TT
CLASS="FUNCTION"
>SDL_EventState()</TT
></A
>, 
it will be generated whenever unhandled events are received from the window 
manager.  This can be used, for example, to implement cut-and-paste in your 
application.

<PRE
CLASS="PROGRAMLISTING"
>typedef struct {
         Uint8 type;   /* Always SDL_SYSWMEVENT */
         SDL_SysWMmsg *msg;
 } SDL_SysWMEvent;</PRE
>

If you want to obtain system-specific information about the window manager,
you can fill the version member of a <SPAN
CLASS="STRUCTNAME"
>SDL_SysWMinfo</SPAN
> 
structure (details can be found in <TT
CLASS="FILENAME"
>SDL_syswm.h</TT
>, which must be included) using the <TT
CLASS="FUNCTION"
>SDL_VERSION()</TT
> macro found in 
<TT
CLASS="FILENAME"
>SDL_version.h</TT
>, and pass it to the 
function:
<DIV
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><A
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></A
><P
></P
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>SDL_GetWMInfo</B
></CODE
>(SDL_SysWMinfo *info);</CODE
></P
><P
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><H2
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><TT
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>SDL_EventState</TT
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