glxmodule.c 3.82 KB
Newer Older
Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
/**************************************************************************

Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
All Rights Reserved.

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sub license, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice (including the
next paragraph) 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 NON-INFRINGEMENT.
IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS 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.

**************************************************************************/

/*
 * Authors:
 *   Kevin E. Martin <kevin@precisioninsight.com>
 *
 */

34 35 36 37
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif

Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
38
#include "xf86Module.h"
39 40
#include "xf86Priv.h"
#include "xf86.h"
Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
41 42
#include "colormap.h"
#include "micmap.h"
43
#include "globals.h"
44
#include "glxserver.h"
45 46

static MODULESETUPPROTO(glxSetup);
Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
47 48 49

static const char *initdeps[] = { "DOUBLE-BUFFER", NULL };

50
static ExtensionModule GLXExt =
Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
51 52 53
{
    GlxExtensionInit,
    "GLX",
54
    &noGlxExtension,
Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
55 56 57 58 59 60 61 62 63 64
    NULL,
    initdeps
};

static XF86ModuleVersionInfo VersRec =
{
        "glx",
        MODULEVENDORSTRING,
        MODINFOSTRING1,
        MODINFOSTRING2,
65
        XORG_VERSION_CURRENT,
Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
66 67 68 69 70 71 72
        1, 0, 0,
        ABI_CLASS_EXTENSION,
        ABI_EXTENSION_VERSION,
        MOD_CLASS_NONE,
        {0,0,0,0}
};

73
_X_EXPORT XF86ModuleData glxModuleData = { &VersRec, glxSetup, NULL };
Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
74

75 76 77 78 79 80 81 82 83 84 85 86
/* We do a little proxy dance here, so we can avoid loading GLcore
 * unless we really need to.*/

static pointer glxModule;

static __GLXscreen *
__glXMesaProxyScreenProbe(ScreenPtr pScreen)
{
  pointer GLcore;
  static __GLXprovider *provider;

  if (provider == NULL) {
87 88
    GLcore = LoadSubModule(glxModule, "GLcore", NULL, NULL, NULL, NULL, 
			   NULL, NULL);
89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105
    if (GLcore == NULL)
      return NULL;

    provider = LoaderSymbol("__glXMesaProvider");
    if (provider == NULL)
      return NULL;
  }

  return provider->screenProbe(pScreen);
}

static __GLXprovider __glXMesaProxyProvider = {
    __glXMesaProxyScreenProbe,
    "MESA-PROXY",
    NULL
};

Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
106 107 108 109
static pointer
glxSetup(pointer module, pointer opts, int *errmaj, int *errmin)
{
    static Bool setupDone = FALSE;
110
    __GLXprovider *provider;
Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
111

112
    if (setupDone) {
Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
113
	if (errmaj) *errmaj = LDR_ONCEONLY;
114 115 116 117 118 119 120 121 122 123 124 125 126 127
	return NULL;
    } 

    setupDone = TRUE;

    glxModule = module;
    GlxPushProvider(&__glXMesaProxyProvider);

    xf86Msg(xf86Info.aiglxFrom, "AIGLX %s\n", 
	    xf86Info.aiglx ? "enabled" : "disabled");
    if (xf86Info.aiglx) {
      provider = LoaderSymbol("__glXDRIProvider");
      if (provider)
	GlxPushProvider(provider);
Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
128
    }
129

130 131 132 133 134 135 136 137 138 139 140 141 142 143 144
    switch (xf86Info.glxVisuals) {
    case XF86_GlxVisualsMinimal:
	GlxSetVisualConfig(GLX_MINIMAL_VISUALS);
	xf86Msg(xf86Info.aiglxFrom, "Exporting only minimal set of GLX visuals\n");
	break;
    case XF86_GlxVisualsTypical:
	GlxSetVisualConfig(GLX_TYPICAL_VISUALS);
	xf86Msg(xf86Info.aiglxFrom, "Exporting typical set of GLX visuals\n");
	break;
    case XF86_GlxVisualsAll:
	GlxSetVisualConfig(GLX_ALL_VISUALS);
	xf86Msg(xf86Info.aiglxFrom, "Exporting all GLX visuals\n");
	break;
    }

145 146 147
    LoadExtension(&GLXExt, FALSE);

    return module;
Kaleb Keithley Keithley's avatar
Kaleb Keithley Keithley committed
148
}