Simplify and clean up GLX visual initialization.

Instead of the fragile setup where we filter the modes common between the
DDX generated GLX visuals and the DRI driver generated fbconfigs, we now
just take the fbconfigs returned by the DRI driver to be our supported set.

4 files changed, 8 insertions, 588 deletions

diff --git a/GL/glx/Makefile.am b/GL/glx/Makefile.am
index 7c1730e39..8eda1531e 100644
--- a/GL/glx/Makefile.am
+++ b/GL/glx/Makefile.am
@@ -53,7 +53,6 @@ libglx_la_SOURCES = \
         glxserver.h \
         glxutil.c \
         glxutil.h \
-        glxvisuals.c \
         indirect_dispatch.c \
         indirect_dispatch.h \
         indirect_dispatch_swap.c \
diff --git a/GL/glx/glxdri.c b/GL/glx/glxdri.c
index 2ded6aa81..f11051b81 100644
--- a/GL/glx/glxdri.c
+++ b/GL/glx/glxdri.c
@@ -658,64 +658,6 @@ __glXDRIscreenCreateDrawable(__GLXscreen *screen,
     return &private->base;
 }
 
-
-static unsigned
-filter_modes(__GLcontextModes **server_modes,
-	     const __GLcontextModes *driver_modes)
-{
-    __GLcontextModes * m;
-    __GLcontextModes ** prev_next;
-    const __GLcontextModes * check;
-    unsigned modes_count = 0;
-
-    if ( driver_modes == NULL ) {
-	LogMessage(X_WARNING,
-		   "AIGLX: 3D driver returned no fbconfigs.\n");
-	return 0;
-    }
-
-    /* For each mode in server_modes, check to see if a matching mode exists
-     * in driver_modes.  If not, then the mode is not available.
-     */
-
-    prev_next = server_modes;
-    for ( m = *prev_next ; m != NULL ; m = *prev_next ) {
-	GLboolean do_delete = GL_TRUE;
-
-	for ( check = driver_modes ; check != NULL ; check = check->next ) {
-	    if ( _gl_context_modes_are_same( m, check ) ) {
-		do_delete = GL_FALSE;
-		break;
-	    }
-	}
-
-	/* The 3D has to support all the modes that match the GLX visuals
-	 * sent from the X server.
-	 */
-	if ( do_delete && (m->visualID != 0) ) {
-	    do_delete = GL_FALSE;
-
-	    LogMessage(X_WARNING,
-		       "AIGLX: 3D driver claims to not support "
-		       "visual 0x%02x\n", m->visualID);
-	}
-
-	if ( do_delete ) {
-	    *prev_next = m->next;
-
-	    m->next = NULL;
-	    _gl_context_modes_destroy( m );
-	}
-	else {
-	    modes_count++;
-	    prev_next = & m->next;
-	}
-    }
-
-    return modes_count;
-}
-
-
 static GLboolean
 getDrawableInfo(__DRIdrawable *driDrawable,
 		unsigned int *index, unsigned int *stamp,
@@ -923,7 +865,6 @@ __glXDRIscreenProbe(ScreenPtr pScreen)
     char *driverName;
     drm_handle_t  hFB;
     int        junk;
-    __GLcontextModes * driver_modes;
     __GLXDRIscreen *screen;
     void *dev_priv = NULL;
     char filename[128];
@@ -1073,7 +1014,6 @@ __glXDRIscreenProbe(ScreenPtr pScreen)
 	goto handle_error;
     }
     
-    driver_modes = NULL;
     screen->driScreen.private =
 	(*createNewScreen)(pScreen->myNum,
 			   &screen->driScreen,
@@ -1085,7 +1025,7 @@ __glXDRIscreenProbe(ScreenPtr pScreen)
 			   fd,
 			   api_ver,
 			   &interface_methods,
-			   &driver_modes);
+			   &screen->base.modes);
 
     if (screen->driScreen.private == NULL) {
 	LogMessage(X_ERROR, "AIGLX error: Calling driver entry point failed");
@@ -1110,10 +1050,6 @@ __glXDRIscreenProbe(ScreenPtr pScreen)
 				       screen->base.GLXextensions);
     }
 
-
-    filter_modes(&screen->base.modes, driver_modes);
-    _gl_context_modes_destroy(driver_modes);
-
     __glXsetEnterLeaveServerFuncs(__glXDRIenterServer, __glXDRIleaveServer);
 
     screen->enterVT = pScrn->EnterVT;
diff --git a/GL/glx/glxscreens.c b/GL/glx/glxscreens.c
index c6f060b3d..3d69645f8 100644
--- a/GL/glx/glxscreens.c
+++ b/GL/glx/glxscreens.c
@@ -281,6 +281,13 @@ glxGetScreen(ScreenPtr pScreen)
     return (__GLXscreen *) pScreen->devPrivates[glxScreenPrivateIndex].ptr;
 }
 
+void GlxSetVisualConfigs(int nconfigs, 
+                         __GLXvisualConfig *configs, void **privates)
+{
+	/* We keep this stub around for the DDX drivers that still
+	 * call it. */
+}
+
 void __glXScreenInit(__GLXscreen *glxScreen, ScreenPtr pScreen)
 {
     static int glxGeneration;
@@ -306,8 +313,6 @@ void __glXScreenInit(__GLXscreen *glxScreen, ScreenPtr pScreen)
     glxScreen->CloseScreen = pScreen->CloseScreen;
     pScreen->CloseScreen = glxCloseScreen;
 
-    __glXScreenInitVisuals(glxScreen);
-
     pScreen->devPrivates[glxScreenPrivateIndex].ptr = (pointer) glxScreen;
 }
  
diff --git a/GL/glx/glxvisuals.c b/GL/glx/glxvisuals.c
deleted file mode 100644
index 46b380b3d..000000000
--- a/GL/glx/glxvisuals.c
+++ /dev/null
@@ -1,520 +0,0 @@
-/*
- * Copyright © 2006  Red Hat, Inc.
- * (C) 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
- * RED HAT, INC, OR PRECISION INSIGHT AND/OR THEIR 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>
- *   Brian Paul <brian@precisioninsight.com>
- *   Kristian Høgsberg <krh@redhat.com>
- *
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <assert.h>
-#include <string.h>
-#include <regionstr.h>
-#include <resource.h>
-#include <GL/gl.h>
-#include <GL/glxint.h>
-#include <GL/glxtokens.h>
-#include <GL/internal/glcore.h>
-#include <scrnintstr.h>
-#include <config.h>
-#include <glxserver.h>
-#include <glxscreens.h>
-#include <glxdrawable.h>
-#include <glxcontext.h>
-#include <glxext.h>
-#include <glxutil.h>
-#include <micmap.h>
-
-void GlxWrapInitVisuals(miInitVisualsProcPtr *);
-
-extern Bool noGlxVisualInit;
-#include "glcontextmodes.h"
-
-struct ScreenVisualsRec {
-    int num_vis;
-    void *private;
-    __GLcontextModes *modes;
-};
-typedef struct ScreenVisualsRec ScreenVisuals;
-
-static ScreenVisuals screenVisuals[MAXSCREENS];
-
-static int                 numConfigs     = 0;
-static __GLXvisualConfig  *visualConfigs  = NULL;
-static void              **visualPrivates = NULL;
-
-static int count_bits(unsigned int n)
-{
-   int bits = 0;
-
-   while (n > 0) {
-      if (n & 1) bits++;
-      n >>= 1;
-   }
-   return bits;
-}
-
-/*
- * In the case the driver defines no GLX visuals we'll use these.
- * Note that for TrueColor and DirectColor visuals, bufferSize is the 
- * sum of redSize, greenSize, blueSize and alphaSize, which may be larger 
- * than the nplanes/rootDepth of the server's X11 visuals
- */
-#define NUM_FALLBACK_CONFIGS 5
-static __GLXvisualConfig FallbackConfigs[NUM_FALLBACK_CONFIGS] = {
-  /* [0] = RGB, double buffered, Z */
-  {
-    -1,                 /* vid */
-    -1,                 /* class */
-    True,               /* rgba */
-    -1, -1, -1, 0,      /* rgba sizes */
-    -1, -1, -1, 0,      /* rgba masks */
-     0,  0,  0, 0,      /* rgba accum sizes */
-    True,               /* doubleBuffer */
-    False,              /* stereo */
-    -1,                 /* bufferSize */
-    16,                 /* depthSize */
-    0,                  /* stencilSize */
-    0,                  /* auxBuffers */
-    0,                  /* level */
-    GLX_NONE,           /* visualRating */
-    GLX_NONE,           /* transparentPixel */
-    0, 0, 0, 0,         /* transparent rgba color (floats scaled to ints) */
-    0                   /* transparentIndex */
-  },
-  /* [1] = RGB, double buffered, Z, stencil, accum */
-  {
-    -1,                 /* vid */
-    -1,                 /* class */
-    True,               /* rgba */
-    -1, -1, -1, 0,      /* rgba sizes */
-    -1, -1, -1, 0,      /* rgba masks */
-    16, 16, 16, 0,      /* rgba accum sizes */
-    True,               /* doubleBuffer */
-    False,              /* stereo */
-    -1,                 /* bufferSize */
-    16,                 /* depthSize */
-    8,                  /* stencilSize */
-    0,                  /* auxBuffers */
-    0,                  /* level */
-    GLX_NONE,           /* visualRating */
-    GLX_NONE,           /* transparentPixel */
-    0, 0, 0, 0,         /* transparent rgba color (floats scaled to ints) */
-    0                   /* transparentIndex */
-  },
-  /* [2] = RGB+Alpha, double buffered, Z, stencil, accum */
-  {
-    -1,                 /* vid */
-    -1,                 /* class */
-    True,               /* rgba */
-    -1, -1, -1, 8,      /* rgba sizes */
-    -1, -1, -1, -1,     /* rgba masks */
-    16, 16, 16, 16,     /* rgba accum sizes */
-    True,               /* doubleBuffer */
-    False,              /* stereo */
-    -1,                 /* bufferSize */
-    16,                 /* depthSize */
-    8,                  /* stencilSize */
-    0,                  /* auxBuffers */
-    0,                  /* level */
-    GLX_NONE,           /* visualRating */
-    GLX_NONE,           /* transparentPixel */
-    0, 0, 0, 0,         /* transparent rgba color (floats scaled to ints) */
-    0                   /* transparentIndex */
-  },
-  /* [3] = RGB+Alpha, single buffered, Z, stencil, accum */
-  {
-    -1,                 /* vid */
-    -1,                 /* class */
-    True,               /* rgba */
-    -1, -1, -1, 8,      /* rgba sizes */
-    -1, -1, -1, -1,     /* rgba masks */
-    16, 16, 16, 16,     /* rgba accum sizes */
-    False,              /* doubleBuffer */
-    False,              /* stereo */
-    -1,                 /* bufferSize */
-    16,                 /* depthSize */
-    8,                  /* stencilSize */
-    0,                  /* auxBuffers */
-    0,                  /* level */
-    GLX_NONE,           /* visualRating */
-    GLX_NONE,           /* transparentPixel */
-    0, 0, 0, 0,         /* transparent rgba color (floats scaled to ints) */
-    0                   /* transparentIndex */
-  },
-  /* [4] = CI, double buffered, Z */
-  {
-    -1,                 /* vid */
-    -1,                 /* class */
-    False,              /* rgba? (false = color index) */
-    -1, -1, -1, 0,      /* rgba sizes */
-    -1, -1, -1, 0,      /* rgba masks */
-     0,  0,  0, 0,      /* rgba accum sizes */
-    True,               /* doubleBuffer */
-    False,              /* stereo */
-    -1,                 /* bufferSize */
-    16,                 /* depthSize */
-    0,                  /* stencilSize */
-    0,                  /* auxBuffers */
-    0,                  /* level */
-    GLX_NONE,           /* visualRating */
-    GLX_NONE,           /* transparentPixel */
-    0, 0, 0, 0,         /* transparent rgba color (floats scaled to ints) */
-    0                   /* transparentIndex */
-  },
-};
-
-
-static Bool init_visuals(int *nvisualp, VisualPtr *visualp,
-			 VisualID *defaultVisp,
-			 int ndepth, DepthPtr pdepth,
-			 int rootDepth)
-{
-    int numRGBconfigs;
-    int numCIconfigs;
-    int numVisuals = *nvisualp;
-    int numNewVisuals;
-    int numNewConfigs;
-    VisualPtr pVisual = *visualp;
-    VisualPtr pVisualNew = NULL;
-    VisualID *orig_vid = NULL;
-    __GLcontextModes *modes;
-    __GLXvisualConfig *pNewVisualConfigs = NULL;
-    void **glXVisualPriv;
-    void **pNewVisualPriv;
-    int found_default;
-    int i, j, k;
-
-    if (numConfigs > 0)
-        numNewConfigs = numConfigs;
-    else
-        numNewConfigs = NUM_FALLBACK_CONFIGS;
-
-    /* Alloc space for the list of new GLX visuals */
-    pNewVisualConfigs = (__GLXvisualConfig *)
-	xalloc(numNewConfigs * sizeof(__GLXvisualConfig));
-    if (!pNewVisualConfigs) {
-	return FALSE;
-    }
-
-    /* Alloc space for the list of new GLX visual privates */
-    pNewVisualPriv = (void **) xalloc(numNewConfigs * sizeof(void *));
-    if (!pNewVisualPriv) {
-	xfree(pNewVisualConfigs);
-	return FALSE;
-    }
-
-    /*
-    ** If SetVisualConfigs was not called, then use default GLX
-    ** visual configs.
-    */
-    if (numConfigs == 0) {
-	memcpy(pNewVisualConfigs, FallbackConfigs,
-               NUM_FALLBACK_CONFIGS * sizeof(__GLXvisualConfig));
-	memset(pNewVisualPriv, 0, NUM_FALLBACK_CONFIGS * sizeof(void *));
-    }
-    else {
-        /* copy driver's visual config info */
-        for (i = 0; i < numConfigs; i++) {
-            pNewVisualConfigs[i] = visualConfigs[i];
-            pNewVisualPriv[i] = visualPrivates[i];
-        }
-    }
-
-    /* Count the number of RGB and CI visual configs */
-    numRGBconfigs = 0;
-    numCIconfigs = 0;
-    for (i = 0; i < numNewConfigs; i++) {
-	if (pNewVisualConfigs[i].rgba)
-	    numRGBconfigs++;
-	else
-	    numCIconfigs++;
-    }
-
-    /* Count the total number of visuals to compute */
-    numNewVisuals = 0;
-    for (i = 0; i < numVisuals; i++) {
-        numNewVisuals +=
-	    (pVisual[i].class == TrueColor || pVisual[i].class == DirectColor)
-	    ? numRGBconfigs : numCIconfigs;
-    }
-
-    /* Reset variables for use with the next screen/driver's visual configs */
-    visualConfigs = NULL;
-    numConfigs = 0;
-
-    /* Alloc temp space for the list of orig VisualIDs for each new visual */
-    orig_vid = (VisualID *) xalloc(numNewVisuals * sizeof(VisualID));
-    if (!orig_vid) {
-	xfree(pNewVisualPriv);
-	xfree(pNewVisualConfigs);
-	return FALSE;
-    }
-
-    /* Alloc space for the list of glXVisuals */
-    modes = _gl_context_modes_create(numNewVisuals, sizeof(__GLcontextModes));
-    if (modes == NULL) {
-	xfree(orig_vid);
-	xfree(pNewVisualPriv);
-	xfree(pNewVisualConfigs);
-	return FALSE;
-    }
-
-    /* Alloc space for the list of glXVisualPrivates */
-    glXVisualPriv = (void **)xalloc(numNewVisuals * sizeof(void *));
-    if (!glXVisualPriv) {
-	_gl_context_modes_destroy( modes );
-	xfree(orig_vid);
-	xfree(pNewVisualPriv);
-	xfree(pNewVisualConfigs);
-	return FALSE;
-    }
-
-    /* Alloc space for the new list of the X server's visuals */
-    pVisualNew = (VisualPtr)xalloc(numNewVisuals * sizeof(VisualRec));
-    if (!pVisualNew) {
-	xfree(glXVisualPriv);
-	_gl_context_modes_destroy( modes );
-	xfree(orig_vid);
-	xfree(pNewVisualPriv);
-	xfree(pNewVisualConfigs);
-	return FALSE;
-    }
-
-    /* Initialize the new visuals */
-    found_default = FALSE;
-    screenVisuals[screenInfo.numScreens-1].modes = modes;
-    for (i = j = 0; i < numVisuals; i++) {
-        int is_rgb = (pVisual[i].class == TrueColor ||
-		      pVisual[i].class == DirectColor);
-
-	for (k = 0; k < numNewConfigs; k++) {
-	    if (pNewVisualConfigs[k].rgba != is_rgb)
-		continue;
-
-	    assert( modes != NULL );
-
-	    /* Initialize the new visual */
-	    pVisualNew[j] = pVisual[i];
-	    pVisualNew[j].vid = FakeClientID(0);
-
-	    /* Check for the default visual */
-	    if (!found_default && pVisual[i].vid == *defaultVisp) {
-		*defaultVisp = pVisualNew[j].vid;
-		found_default = TRUE;
-	    }
-
-	    /* Save the old VisualID */
-	    orig_vid[j] = pVisual[i].vid;
-
-	    /* Initialize the glXVisual */
-	    _gl_copy_visual_to_context_mode( modes, & pNewVisualConfigs[k] );
-	    modes->visualID = pVisualNew[j].vid;
-	    if (modes->fbconfigID == GLX_DONT_CARE)
-		modes->fbconfigID = modes->visualID;
-
-	    /*
-	     * If the class is -1, then assume the X visual information
-	     * is identical to what GLX needs, and take them from the X
-	     * visual.  NOTE: if class != -1, then all other fields MUST
-	     * be initialized.
-	     */
-	    if (modes->visualType == GLX_NONE) {
-		modes->visualType = _gl_convert_from_x_visual_type( pVisual[i].class );
-		modes->redBits    = count_bits(pVisual[i].redMask);
-		modes->greenBits  = count_bits(pVisual[i].greenMask);
-		modes->blueBits   = count_bits(pVisual[i].blueMask);
-		modes->alphaBits  = modes->alphaBits;
-		modes->redMask    = pVisual[i].redMask;
-		modes->greenMask  = pVisual[i].greenMask;
-		modes->blueMask   = pVisual[i].blueMask;
-		modes->alphaMask  = modes->alphaMask;
-		modes->rgbBits = (is_rgb)
-		    ? (modes->redBits + modes->greenBits +
-		       modes->blueBits + modes->alphaBits)
-		    : rootDepth;
-	    }
-
-	    /* Save the device-dependent private for this visual */
-	    glXVisualPriv[j] = pNewVisualPriv[k];
-
-	    j++;
-	    modes = modes->next;
-	}
-    }
-
-    assert(j <= numNewVisuals);
-
-    /* Save the GLX visuals in the screen structure */
-    screenVisuals[screenInfo.numScreens-1].num_vis = numNewVisuals;
-    screenVisuals[screenInfo.numScreens-1].private = glXVisualPriv;
-
-    /* Set up depth's VisualIDs */
-    for (i = 0; i < ndepth; i++) {
-	int numVids = 0;
-	VisualID *pVids = NULL;
-	int k, n = 0;
-
-	/* Count the new number of VisualIDs at this depth */
-	for (j = 0; j < pdepth[i].numVids; j++)
-	    for (k = 0; k < numNewVisuals; k++)
-		if (pdepth[i].vids[j] == orig_vid[k])
-		    numVids++;
-
-	/* Allocate a new list of VisualIDs for this depth */
-	pVids = (VisualID *)xalloc(numVids * sizeof(VisualID));
-
-	/* Initialize the new list of VisualIDs for this depth */
-	for (j = 0; j < pdepth[i].numVids; j++)
-	    for (k = 0; k < numNewVisuals; k++)
-		if (pdepth[i].vids[j] == orig_vid[k])
-		    pVids[n++] = pVisualNew[k].vid;
-
-	/* Update this depth's list of VisualIDs */
-	xfree(pdepth[i].vids);
-	pdepth[i].vids = pVids;
-	pdepth[i].numVids = numVids;
-    }
-
-    /* Update the X server's visuals */
-    *nvisualp = numNewVisuals;
-    *visualp = pVisualNew;
-
-    /* Free the old list of the X server's visuals */
-    xfree(pVisual);
-
-    /* Clean up temporary allocations */
-    xfree(orig_vid);
-    xfree(pNewVisualPriv);
-    xfree(pNewVisualConfigs);
-
-    /* Free the private list created by DDX HW driver */
-    if (visualPrivates)
-        xfree(visualPrivates);
-    visualPrivates = NULL;
-
-    return TRUE;
-}
-
-void GlxSetVisualConfigs(int nconfigs, 
-                         __GLXvisualConfig *configs, void **privates)
-{
-    numConfigs = nconfigs;
-    visualConfigs = configs;
-    visualPrivates = privates;
-}
-
-static miInitVisualsProcPtr saveInitVisualsProc;
-
-Bool GlxInitVisuals(VisualPtr *visualp, DepthPtr *depthp,
-		    int *nvisualp, int *ndepthp,
-		    int *rootDepthp, VisualID *defaultVisp,
-		    unsigned long sizes, int bitsPerRGB,
-		    int preferredVis)
-{
-    Bool ret;
-
-    if (saveInitVisualsProc) {
-        ret = saveInitVisualsProc(visualp, depthp, nvisualp, ndepthp,
-                                  rootDepthp, defaultVisp, sizes, bitsPerRGB,
-                                  preferredVis);
-        if (!ret)
-            return False;
-    }
-
-    /*
-     * Setup the visuals supported by this particular screen.
-     */
-    if (!noGlxVisualInit) {
-        init_visuals(nvisualp, visualp, defaultVisp,
-                     *ndepthp, *depthp, *rootDepthp);
-    }
-
-
-    return True;
-}
-
-/************************************************************************/
-
-
-void
-GlxWrapInitVisuals(miInitVisualsProcPtr *initVisProc)
-{
-    saveInitVisualsProc = *initVisProc;
-    *initVisProc = GlxInitVisuals;
-}
-
-static void fixup_visuals(int screen)
-{
-    ScreenPtr pScreen = screenInfo.screens[screen];
-    ScreenVisuals *psv = &screenVisuals[screen];
-    int j;
-    __GLcontextModes *modes;
-
-    for ( modes = psv->modes ; modes != NULL ; modes = modes->next ) {
-	const int vis_class = _gl_convert_to_x_visual_type( modes->visualType );
-	const int nplanes = (modes->rgbBits - modes->alphaBits);
-	const VisualPtr pVis = pScreen->visuals;
-
-	/* Find a visual that matches the GLX visual's class and size */
-	for (j = 0; j < pScreen->numVisuals; j++) {
-	    if (pVis[j].class == vis_class &&
-		pVis[j].nplanes == nplanes) {
-
-		/* Fixup the masks */
-		modes->redMask   = pVis[j].redMask;
-		modes->greenMask = pVis[j].greenMask;
-		modes->blueMask  = pVis[j].blueMask;
-
-		/* Recalc the sizes */
-		modes->redBits   = count_bits(modes->redMask);
-		modes->greenBits = count_bits(modes->greenMask);
-		modes->blueBits  = count_bits(modes->blueMask);
-	    }
-	}
-    }
-}
-
-void __glXScreenInitVisuals(__GLXscreen *screen)
-{
-    int index = screen->pScreen->myNum;
-
-    screen->modes = screenVisuals[index].modes;
-    screen->pVisualPriv = screenVisuals[index].private;
-    screen->numVisuals = screenVisuals[index].num_vis;
-    screen->numUsableVisuals = screenVisuals[index].num_vis;
-
-    /*
-     * The ordering of the rgb compenents might have been changed by the
-     * driver after mi initialized them.
-     */
-    fixup_visuals(index);
-}