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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 99210400e8b9
children f7b03b6838cb
line wrap: on
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#ifndef _SDL_directfb_opengl_h
#define _SDL_directfb_opengl_h

#if SDL_DIRECTFB_OPENGL
#include "SDL_opengl.h"

typedef struct _DirectFB_GLContext DirectFB_GLContext;
struct _DirectFB_GLContext
{
    IDirectFBGL *context;
    DirectFB_GLContext *next;
};

/* OpenGL functions */
extern int DirectFB_GL_Initialize(_THIS);
extern void DirectFB_GL_Shutdown(_THIS);

extern int DirectFB_GL_LoadLibrary(_THIS, const char *path);
extern void *DirectFB_GL_GetProcAddress(_THIS, const char *proc);
extern SDL_GLContext DirectFB_GL_CreateContext(_THIS, SDL_Window * window);
extern int DirectFB_GL_MakeCurrent(_THIS, SDL_Window * window,
                                   SDL_GLContext context);
extern int DirectFB_GL_SetSwapInterval(_THIS, int interval);
extern int DirectFB_GL_GetSwapInterval(_THIS);
extern void DirectFB_GL_SwapWindow(_THIS, SDL_Window * window);
extern void DirectFB_GL_DeleteContext(_THIS, SDL_GLContext context);

#endif /* SDL_DIRECTFB_OPENGL */

#endif /* _SDL_directfb_opengl_h */

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