151 lines
3.9 KiB
C
151 lines
3.9 KiB
C
/**************************************************************************
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Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
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All Rights Reserved.
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sub license, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice (including the
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next paragraph) shall be included in all copies or substantial portions
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of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
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ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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**************************************************************************/
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/*
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* Authors:
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* Kevin E. Martin <kevin@precisioninsight.com>
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*
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include "xf86Module.h"
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#include "xf86Priv.h"
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#include "xf86.h"
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#include "colormap.h"
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#include "micmap.h"
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#include "globals.h"
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typedef struct __GLXscreen __GLXscreen;
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typedef struct __GLXprovider __GLXprovider;
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struct __GLXprovider {
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__GLXscreen *(*screenProbe)(ScreenPtr pScreen);
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const char *name;
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__GLXprovider *next;
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};
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extern void GlxPushProvider(__GLXprovider *provider);
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extern void GlxExtensionInit(void);
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extern void GlxWrapInitVisuals(miInitVisualsProcPtr *);
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static MODULESETUPPROTO(glxSetup);
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static const char *initdeps[] = { "DOUBLE-BUFFER", NULL };
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static ExtensionModule GLXExt =
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{
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GlxExtensionInit,
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"GLX",
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&noGlxExtension,
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NULL,
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initdeps
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};
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static XF86ModuleVersionInfo VersRec =
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{
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"glx",
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MODULEVENDORSTRING,
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MODINFOSTRING1,
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MODINFOSTRING2,
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XORG_VERSION_CURRENT,
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1, 0, 0,
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ABI_CLASS_EXTENSION,
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ABI_EXTENSION_VERSION,
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MOD_CLASS_NONE,
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{0,0,0,0}
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};
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_X_EXPORT XF86ModuleData glxModuleData = { &VersRec, glxSetup, NULL };
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/* We do a little proxy dance here, so we can avoid loading GLcore
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* unless we really need to.*/
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static pointer glxModule;
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static __GLXscreen *
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__glXMesaProxyScreenProbe(ScreenPtr pScreen)
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{
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pointer GLcore;
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static __GLXprovider *provider;
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if (provider == NULL) {
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GLcore = LoadSubModule(glxModule, "GLcore", NULL, NULL, NULL, NULL,
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NULL, NULL);
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if (GLcore == NULL)
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return NULL;
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provider = LoaderSymbol("__glXMesaProvider");
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if (provider == NULL)
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return NULL;
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}
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return provider->screenProbe(pScreen);
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}
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static __GLXprovider __glXMesaProxyProvider = {
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__glXMesaProxyScreenProbe,
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"MESA-PROXY",
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NULL
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};
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static pointer
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glxSetup(pointer module, pointer opts, int *errmaj, int *errmin)
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{
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static Bool setupDone = FALSE;
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__GLXprovider *provider;
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if (setupDone) {
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if (errmaj) *errmaj = LDR_ONCEONLY;
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return NULL;
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}
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setupDone = TRUE;
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glxModule = module;
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GlxPushProvider(&__glXMesaProxyProvider);
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xf86Msg(xf86Info.aiglxFrom, "AIGLX %s\n",
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xf86Info.aiglx ? "enabled" : "disabled");
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if (xf86Info.aiglx) {
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provider = LoaderSymbol("__glXDRIProvider");
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if (provider)
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GlxPushProvider(provider);
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}
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LoadExtension(&GLXExt, FALSE);
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/* Wrap the init visuals routine in micmap.c */
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GlxWrapInitVisuals(&miInitVisualsProc);
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/* Make sure this gets wrapped each time InitVisualWrap is called */
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miHookInitVisuals(NULL, GlxWrapInitVisuals);
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bail:
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return module;
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}
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