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view src/video/Xext/XmuStdCmap/DelCmap.c @ 3100:7dc982143c06

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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 2032348afed1
children
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/* $Xorg: DelCmap.c,v 1.4 2001/02/09 02:03:52 xorgcvs Exp $ */

/* 
 
Copyright 1989, 1998  The Open Group

Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.

*/
/* $XFree86: xc/lib/Xmu/DelCmap.c,v 1.6 2001/01/17 19:42:54 dawes Exp $ */

/*
 * Author:  Donna Converse, MIT X Consortium
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "../extensions/StdCmap.h"

/* To remove any standard colormap property, use XmuDeleteStandardColormap().
 * XmuDeleteStandardColormap() will remove the specified property from the
 * specified screen, releasing any resources used by the colormap(s) of the
 * property if possible.
 */

void
XmuDeleteStandardColormap(Display * dpy, int screen, Atom property)
     /* dpy;            - specifies the X server to connect to
      * screen          - specifies the screen of the display
      * property        - specifies the standard colormap property
      */
{
    XStandardColormap *stdcmaps, *s;
    int count = 0;

    if (XGetRGBColormaps(dpy, RootWindow(dpy, screen), &stdcmaps, &count,
                         property)) {
        for (s = stdcmaps; count > 0; count--, s++) {
            if ((s->killid == ReleaseByFreeingColormap) &&
                (s->colormap != None) &&
                (s->colormap != DefaultColormap(dpy, screen)))
                XFreeColormap(dpy, s->colormap);
            else if (s->killid != None)
                XKillClient(dpy, s->killid);
        }
        XDeleteProperty(dpy, RootWindow(dpy, screen), property);
        XFree((char *) stdcmaps);
        XSync(dpy, False);
    }
}