Merge remote branch 'upstream/gallium-0.1' into nouveau-gallium-0.1

Conflicts:

	configs/default

7 files changed, 1046 insertions, 25 deletions

diff --git a/src/egl/drivers/Makefile b/src/egl/drivers/Makefile
new file mode 100644
index 00000000000..a2d67ca5a8a
--- /dev/null
+++ b/src/egl/drivers/Makefile
@@ -0,0 +1,42 @@
+# src/egl/drivers/Makefile
+
+TOP = ../../..
+include $(TOP)/configs/current
+
+
+SUBDIRS = demo dri xdri
+
+
+default: conditional_subdirs
+
+
+# depending on $DRIVER_DIRS...
+conditional_subdirs:
+	@if [ "${DRIVER_DIRS}" = "dri" ] ; then \
+		$(MAKE) dri_subdirs ; \
+	fi
+
+
+dri_subdirs:
+	@ (cd dri ; $(MAKE)) || exit 1
+	@ (cd xdri ; $(MAKE)) || exit 1
+
+demo_subdir:
+	@ (cd demo ; $(MAKE)) || exit 1
+
+
+
+subdirs:
+	@for dir in $(SUBDIRS) ; do \
+		if [ -d $$dir ] ; then \
+			(cd $$dir ; $(MAKE)) || exit 1 ; \
+		fi \
+	done
+
+
+clean:
+	@for dir in $(SUBDIRS) ; do \
+		if [ -d $$dir ] ; then \
+			(cd $$dir ; $(MAKE) clean) ; \
+		fi \
+	done
diff --git a/src/egl/drivers/demo/demo.c b/src/egl/drivers/demo/demo.c
index 45545755c00..6b8b71d16ba 100644
--- a/src/egl/drivers/demo/demo.c
+++ b/src/egl/drivers/demo/demo.c
@@ -21,7 +21,7 @@
 typedef struct demo_driver
 {
    _EGLDriver Base;  /* base class/object */
-   GLuint DemoStuff;
+   unsigned DemoStuff;
 } DemoDriver;
 
 #define DEMO_DRIVER(D) ((DemoDriver *) (D))
@@ -33,7 +33,7 @@ typedef struct demo_driver
 typedef struct demo_surface
 {
    _EGLSurface Base;  /* base class/object */
-   GLuint DemoStuff;
+   unsigned DemoStuff;
 } DemoSurface;
 
 
@@ -43,7 +43,7 @@ typedef struct demo_surface
 typedef struct demo_context
 {
    _EGLContext Base;  /* base class/object */
-   GLuint DemoStuff;
+   unsigned DemoStuff;
 } DemoContext;
 
 
@@ -152,9 +152,9 @@ demoCreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, EGLContext
 
    /* generate handle and insert into hash table */
    _eglSaveContext(&c->Base);
-   assert(c->Base.Handle);
+   assert(_eglGetContextHandle(&c->Base));
 
-   return c->Base.Handle;
+   return _eglGetContextHandle(&c->Base);
 }
 
 
@@ -286,7 +286,7 @@ demoMakeCurrent(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw, EGLSurface rea
  * plug in API functions.
  */
 _EGLDriver *
-_eglMain(_EGLDisplay *dpy)
+_eglMain(_EGLDisplay *dpy, const char *args)
 {
    DemoDriver *demo;
 
diff --git a/src/egl/drivers/dri/Makefile b/src/egl/drivers/dri/Makefile
index fa3720a16ba..bdc683a0c16 100644
--- a/src/egl/drivers/dri/Makefile
+++ b/src/egl/drivers/dri/Makefile
@@ -29,6 +29,8 @@ SOURCES = egldri.c
 
 OBJECTS = $(SOURCES:.c=.o)
 
+DRM_LIB = `pkg-config --libs libdrm`
+
 
 .c.o:
 	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
@@ -43,7 +45,7 @@ library: $(TOP)/$(LIB_DIR)/libEGLdri.so
 
 $(TOP)/$(LIB_DIR)/libEGLdri.so: $(OBJECTS)
 	$(TOP)/bin/mklib -o EGLdri -major 1 -minor 0 \
-		-install $(TOP)/$(LIB_DIR) -ldl $(OBJECTS)
+		-install $(TOP)/$(LIB_DIR) -ldl $(OBJECTS) $(DRM_LIB)
 
 
 clean:
@@ -55,7 +57,7 @@ depend: $(SOURCES) $(HEADERS)
 	@ rm -f depend
 	@ touch depend
 	$(MKDEP) $(MKDEP_OPTIONS) $(DEFINES) $(INCLUDE_DIRS) \
-		$(SOURCES) $(HEADERS) > /dev/null 
+		$(SOURCES) $(HEADERS) >/dev/null 2>/dev/null
 
 include depend
 # DO NOT DELETE
diff --git a/src/egl/drivers/dri/egldri.c b/src/egl/drivers/dri/egldri.c
index cab0be2bd18..57661cc3ab8 100644
--- a/src/egl/drivers/dri/egldri.c
+++ b/src/egl/drivers/dri/egldri.c
@@ -1,5 +1,6 @@
 /**
- * Generic EGL driver for DRI.
+ * Generic EGL driver for DRI.  This is basically an "adaptor" driver
+ * that allows libEGL to load/use regular DRI drivers.
  *
  * This file contains all the code needed to interface DRI-based drivers
  * with libEGL.
@@ -23,6 +24,7 @@
 #include "egldisplay.h"
 #include "eglcontext.h"
 #include "eglconfig.h"
+#include "eglconfigutil.h"
 #include "eglsurface.h"
 #include "eglscreen.h"
 #include "eglglobals.h"
@@ -32,18 +34,72 @@
 #include "egldri.h"
 
 const char *sysfs = "/sys/class";
-#define None 0
+
 static const int empty_attribute_list[1] = { None };
 
 
+
+/**
+ * Given a card number, return the name of the DRI driver to use.
+ * This generally means reading the contents of
+ * /sys/class/drm/cardX/dri_library_name, where X is the card number
+ */
+static EGLBoolean
+driver_name_from_card_number(int card, char *driverName, int maxDriverName)
+{
+   char path[2000];
+   FILE *f;
+   int length;
+
+   snprintf(path, sizeof(path), "%s/drm/card%d/dri_library_name", sysfs, card);
+
+   f = fopen(path, "r");
+   if (!f)
+      return EGL_FALSE;
+
+   fgets(driverName, maxDriverName, f);
+   fclose(f);
+
+   if ((length = strlen(driverName)) > 1) {
+      /* remove the trailing newline from sysfs */
+      driverName[length - 1] = '\0';
+      strncat(driverName, "_dri", maxDriverName);
+      return EGL_TRUE;
+   }
+   else {
+      return EGL_FALSE;
+   }   
+}
+
+
+
 /**
  * The bootstrap function.
  * Return a new driDriver object and plug in API functions.
  * This function, in turn, loads a specific DRI driver (ex: r200_dri.so).
  */
 _EGLDriver *
-_eglMain(_EGLDisplay *dpy)
+_eglMain(_EGLDisplay *dpy, const char *args)
 {
+#if 1
+   const int card = args ? atoi(args) : 0;
+   _EGLDriver *driver = NULL;
+   char driverName[1000];
+
+   if (!driver_name_from_card_number(card, driverName, sizeof(driverName))) {
+      _eglLog(_EGL_WARNING,
+              "Unable to determine driver name for card %d\n", card);
+      return NULL;
+   }
+
+   _eglLog(_EGL_DEBUG, "Driver name: %s\n", driverName);
+
+   driver = _eglOpenDriver(dpy, driverName, args);
+
+   return driver;
+
+#else
+
    int length;
    char path[NAME_MAX];
    struct dirent *dirent;
@@ -58,14 +114,19 @@ _eglMain(_EGLDisplay *dpy)
       _eglLog(_EGL_WARNING, "%s DRM devices not found.", path);
       return EGL_FALSE;
    }
+
+   /* loop over dir entries looking for cardX where "X" is in the
+    * dpy->DriverName ":X" string.
+    */
    while ((dirent = readdir(dir))) {
 
       if (strncmp(&dirent->d_name[0], "card", 4) != 0)
          continue;
-      if (strcmp(&dirent->d_name[4], &dpy->Name[1]) != 0)
+      if (strcmp(&dirent->d_name[4], &driverName[1]) != 0)
          continue;
 
-      snprintf(path, sizeof(path), "%s/drm/card%s/dri_library_name", sysfs, &dpy->Name[1]);
+      snprintf(path, sizeof(path), "%s/drm/card%s/dri_library_name",
+               sysfs, &driverName[1]);
       _eglLog(_EGL_INFO, "Opening %s", path);
 #if 1
       file = fopen(path, "r");
@@ -89,6 +150,7 @@ _eglMain(_EGLDisplay *dpy)
    closedir(dir);
 
    return driver;
+#endif
 }
 
 
@@ -141,7 +203,7 @@ _eglDRICreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
    /* generate handle and insert into hash table */
    _eglSaveContext(&c->Base);
 
-   return c->Base.Handle;
+   return _eglGetContextHandle(&c->Base);
 }
 
 
@@ -152,13 +214,15 @@ _eglDRIMakeCurrent(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw,
    driDisplay *disp = Lookup_driDisplay(dpy);
    driContext *ctx = Lookup_driContext(context);
    EGLBoolean b;
+   __DRIid drawBuf = (__DRIid) draw;
+   __DRIid readBuf = (__DRIid) read;
 
    b = _eglMakeCurrent(drv, dpy, draw, read, context);
    if (!b)
       return EGL_FALSE;
 
    if (ctx) {
-      ctx->driContext.bindContext(disp, 0, read, draw, &ctx->driContext);
+      ctx->driContext.bindContext(disp, 0, drawBuf, readBuf, &ctx->driContext);
    }
    else {
       /* what's this??? */
@@ -190,7 +254,7 @@ _eglDRICreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
 #if 0
       GLcontext *ctx = NULL; /* this _should_ be OK */
 #endif
-      GLvisual visMode;
+      __GLcontextModes visMode;
       _EGLConfig *conf = _eglLookupConfig(drv, dpy, config);
       assert(conf); /* bad config should be caught earlier */
       _eglConfigToContextModesRec(conf, &visMode);
@@ -267,7 +331,8 @@ _eglDRICreateScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy, EGLConfig cfg,
    _EGLConfig *config = _eglLookupConfig(drv, dpy, cfg);
    driDisplay *disp = Lookup_driDisplay(dpy);
    driSurface *surface;
-   GLvisual visMode;
+   __GLcontextModes visMode;
+   __DRIid drawBuf;
 
    surface = (driSurface *) calloc(1, sizeof(*surface));
    if (!surface) {
@@ -292,8 +357,10 @@ _eglDRICreateScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy, EGLConfig cfg,
    /* convert EGLConfig to GLvisual */
    _eglConfigToContextModesRec(config, &visMode);
 
+   drawBuf = (__DRIid) _eglGetSurfaceHandle(&surface->Base);
+
    /* Create a new DRI drawable */
-   if (!disp->driScreen.createNewDrawable(disp, &visMode, surface->Base.Handle,
+   if (!disp->driScreen.createNewDrawable(disp, &visMode, drawBuf,
                                           &surface->drawable, GLX_WINDOW_BIT,
                                           empty_attribute_list)) {
       _eglRemoveSurface(&surface->Base);
@@ -715,7 +782,7 @@ __eglGetDrawableInfo(__DRInativeDisplay * ndpy, int screen, __DRIid drawable,
 {
     __DRIscreen *pDRIScreen;
     __DRIscreenPrivate *psp;
-   driSurface *surf = Lookup_driSurface(drawable);
+    driSurface *surf = Lookup_driSurface((EGLSurface) drawable);
 
    pDRIScreen = __eglFindDRIScreen(ndpy, screen);
 
@@ -1019,8 +1086,10 @@ _eglDRICreateDisplay(driDisplay *dpy, __DRIframebuffer *framebuffer)
                             api_ver,
                             & interface_methods,
                             NULL);
-   if (!dpy->driScreen.private)
+   if (!dpy->driScreen.private) {
+      _eglLog(_EGL_WARNING, "egldri.c: DRI create new screen failed");
       return EGL_FALSE;
+   }
 
    DRM_UNLOCK( dpy->drmFD, dpy->pSAREA, dpy->serverContext );
 
@@ -1080,6 +1149,7 @@ _eglDRIInitialize(_EGLDriver *drv, EGLDisplay dpy,
 {
    _EGLDisplay *disp = _eglLookupDisplay(dpy);
    driDisplay *display;
+   const char *driverName = (const char *) disp->NativeDisplay;
 
    assert(disp);
 
@@ -1088,13 +1158,13 @@ _eglDRIInitialize(_EGLDriver *drv, EGLDisplay dpy,
     */
    display = calloc(1, sizeof(*display));
    display->Base = *disp;
-   _eglHashInsert(_eglGlobal.Displays, disp->Handle, display);
+   _eglSaveDisplay(&display->Base);
    free(disp);
 
    *major = 1;
    *minor = 0;
 
-   sscanf(&disp->Name[1], "%d", &display->minor);
+   sscanf(driverName + 1, "%d", &display->minor);
 
    drv->Initialized = EGL_TRUE;
    return EGL_TRUE;
diff --git a/src/egl/drivers/dri/egldri.h b/src/egl/drivers/dri/egldri.h
index 34b12d64fcd..54a9a4ea269 100644
--- a/src/egl/drivers/dri/egldri.h
+++ b/src/egl/drivers/dri/egldri.h
@@ -1,11 +1,14 @@
 #ifndef EGLDRI_INCLUDED
 #define EGLDRI_INCLUDED
 
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
 #include "egldisplay.h"
 #include "eglscreen.h"
 #include "eglsurface.h"
 #include "eglcontext.h"
-#include "mtypes.h"
+
 #include "dri_util.h"
 #include "drm_sarea.h"
 
@@ -14,7 +17,7 @@
  */
 typedef struct dri_display
 {
-   _EGLDisplay Base;  /* base class/object */
+   _EGLDisplay Base;  /**< base class */
    void *pFB;
    int drmFD;  /**< \brief DRM device file descriptor */
    int minor;
@@ -32,7 +35,7 @@ typedef struct dri_display
    unsigned long FBStart;   /**< \brief physical address of the framebuffer */
    void *driverClientMsg;
    int driverClientMsgSize;
-   int chipset;
+   unsigned chipset;
    void *driverPrivate;
    drm_magic_t magic;
 
diff --git a/src/egl/drivers/xdri/Makefile b/src/egl/drivers/xdri/Makefile
new file mode 100644
index 00000000000..477a75184ac
--- /dev/null
+++ b/src/egl/drivers/xdri/Makefile
@@ -0,0 +1,67 @@
+# src/egl/drivers/xdri/Makefile
+
+# Build XEGL DRI driver loader library:  egl_xdri.so
+
+
+TOP = ../../../..
+include $(TOP)/configs/current
+
+
+DRIVER_NAME = egl_xdri.so
+
+
+INCLUDE_DIRS = \
+	-I. \
+	-I/usr/include \
+	-I/usr/include/drm \
+	-I$(TOP)/include \
+	-I$(TOP)/include/GL/internal \
+	-I$(TOP)/src/mesa/glapi \
+	-I$(TOP)/src/mesa/drivers/dri/common \
+	-I$(TOP)/src/egl/main \
+	-I$(TOP)/src/glx/x11
+
+SOURCES = egl_xdri.c
+
+OBJECTS = $(SOURCES:.c=.o)
+
+DRM_LIB = `pkg-config --libs libdrm`
+
+
+.c.o:
+	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
+
+
+.PHONY: library
+
+
+default: depend library Makefile
+
+
+library: $(TOP)/$(LIB_DIR)/$(DRIVER_NAME)
+
+
+# Make the egl_xdri.so library
+$(TOP)/$(LIB_DIR)/$(DRIVER_NAME): $(OBJECTS)
+	$(TOP)/bin/mklib -o $(DRIVER_NAME) \
+		-noprefix \
+		-major 1 -minor 0 \
+		-install $(TOP)/$(LIB_DIR) \
+		-ldl $(OBJECTS) $(DRM_LIB)
+
+
+clean:
+	rm -f *.o
+	rm -f *.so
+	rm -f depend depend.bak
+
+
+depend: $(SOURCES) $(HEADERS)
+	@ echo "running $(MKDEP)"
+	@ rm -f depend
+	@ touch depend
+	$(MKDEP) $(MKDEP_OPTIONS) $(DEFINES) $(INCLUDE_DIRS) \
+		$(SOURCES) $(HEADERS) >/dev/null 2>/dev/null
+
+include depend
+# DO NOT DELETE
diff --git a/src/egl/drivers/xdri/egl_xdri.c b/src/egl/drivers/xdri/egl_xdri.c
new file mode 100644
index 00000000000..df80c6a1c4e
--- /dev/null
+++ b/src/egl/drivers/xdri/egl_xdri.c
@@ -0,0 +1,837 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, 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 TUNGSTEN GRAPHICS 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.
+ * 
+ **************************************************************************/
+
+
+/**
+ * Code to interface a DRI driver to libEGL.
+ * Note that unlike previous DRI/EGL interfaces, this one is meant to
+ * be used _with_ X.  Applications will use eglCreateWindowSurface()
+ * to render into X-created windows.
+ *
+ * This is an EGL driver that, in turn, loads a regular DRI driver.
+ * There are some dependencies on code in libGL, but those coudl be
+ * removed with some effort.
+ *
+ * Authors: Brian Paul
+ */
+
+
+#include <assert.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include "dlfcn.h"
+#include <X11/Xlib.h>
+#include <GL/gl.h>
+#include "xf86dri.h"
+#include "glxclient.h"
+#include "dri_util.h"
+#include "drm_sarea.h"
+
+#define _EGL_PLATFORM_X
+
+#include "eglconfig.h"
+#include "eglcontext.h"
+#include "egldisplay.h"
+#include "egldriver.h"
+#include "eglglobals.h"
+#include "eglhash.h"
+#include "egllog.h"
+#include "eglsurface.h"
+
+
+
+#define CALLOC_STRUCT(T)   (struct T *) calloc(1, sizeof(struct T))
+
+
+/** subclass of _EGLDriver */
+struct xdri_egl_driver
+{
+   _EGLDriver Base;   /**< base class */
+
+   const char *dri_driver_name;  /**< name of DRI driver to load */
+   void *dri_driver_handle;      /**< returned by dlopen(dri_driver_name) */
+
+   int chipset;
+   int minor;
+   int drmFD;
+
+   __DRIscreen driScreen;
+   __DRIframebuffer framebuffer;
+   drm_handle_t hSAREA;
+   drmAddress pSAREA;
+   char *busID;
+   drm_magic_t magic;
+};
+
+
+/** subclass of _EGLContext */
+struct xdri_egl_context
+{
+   _EGLContext Base;   /**< base class */
+
+   __DRIcontext driContext;
+};
+
+
+/** subclass of _EGLSurface */
+struct xdri_egl_surface
+{
+   _EGLSurface Base;   /**< base class */
+
+   __DRIid driDrawable;  /**< DRI surface */
+   drm_drawable_t hDrawable;
+};
+
+
+/** subclass of _EGLConfig */
+struct xdri_egl_config
+{
+   _EGLConfig Base;   /**< base class */
+
+   const __GLcontextModes *mode;  /**< corresponding GLX mode */
+};
+
+
+/** cast wrapper */
+static struct xdri_egl_driver *
+xdri_egl_driver(_EGLDriver *drv)
+{
+   return (struct xdri_egl_driver *) drv;
+}
+
+
+/** Map EGLSurface handle to xdri_egl_surface object */
+static struct xdri_egl_surface *
+lookup_surface(EGLSurface surf)
+{
+   _EGLSurface *surface = _eglLookupSurface(surf);
+   return (struct xdri_egl_surface *) surface;
+}
+
+
+/** Map EGLContext handle to xdri_egl_context object */
+static struct xdri_egl_context *
+lookup_context(EGLContext c)
+{
+   _EGLContext *context = _eglLookupContext(c);
+   return (struct xdri_egl_context *) context;
+}
+
+
+/** Map EGLConfig handle to xdri_egl_config object */
+static struct xdri_egl_config *
+lookup_config(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config)
+{
+   _EGLConfig *conf = _eglLookupConfig(drv, dpy, config);
+   return (struct xdri_egl_config *) conf;
+}
+
+
+
+/**
+ * Produce a set of EGL configs.
+ * Note that we get the list of GLcontextModes from the GLX library.
+ * This dependency on GLX lib will be removed someday.
+ */
+static void
+create_configs(_EGLDisplay *disp)
+{
+   const __GLcontextModes *m;
+   __GLXdisplayPrivate *priv = __glXInitialize(disp->Xdpy);
+   __GLXscreenConfigs *scrn = priv->screenConfigs;
+   int id = 1;
+
+   for (m = scrn->configs; m; m = m->next) {
+      /* EGL requires double-buffered configs */
+      if (m->doubleBufferMode) {
+         struct xdri_egl_config *config = CALLOC_STRUCT(xdri_egl_config);
+
+         _eglInitConfig(&config->Base, id++);
+
+         SET_CONFIG_ATTRIB(&config->Base, EGL_BUFFER_SIZE, m->rgbBits);
+         SET_CONFIG_ATTRIB(&config->Base, EGL_RED_SIZE, m->redBits);
+         SET_CONFIG_ATTRIB(&config->Base, EGL_GREEN_SIZE, m->greenBits);
+         SET_CONFIG_ATTRIB(&config->Base, EGL_BLUE_SIZE, m->blueBits);
+         SET_CONFIG_ATTRIB(&config->Base, EGL_ALPHA_SIZE, m->alphaBits);
+         SET_CONFIG_ATTRIB(&config->Base, EGL_DEPTH_SIZE, m->depthBits);
+         SET_CONFIG_ATTRIB(&config->Base, EGL_STENCIL_SIZE, m->stencilBits);
+         SET_CONFIG_ATTRIB(&config->Base, EGL_NATIVE_VISUAL_ID, m->visualID);
+         SET_CONFIG_ATTRIB(&config->Base, EGL_NATIVE_VISUAL_TYPE, m->visualType);
+         /* XXX only window rendering allowed ATM */
+         SET_CONFIG_ATTRIB(&config->Base, EGL_SURFACE_TYPE, EGL_WINDOW_BIT);
+
+         /* XXX possibly other things to init... */
+
+         /* Ptr from EGL config to GLcontextMode.  Used in CreateContext(). */
+         config->mode = m;
+
+         _eglAddConfig(disp, &config->Base);
+      }
+   }
+}
+
+
+/**
+ * Called via __DRIinterfaceMethods object
+ */
+static __DRIfuncPtr
+dri_get_proc_address(const char * proc_name)
+{
+   return NULL;
+}
+
+
+static void
+dri_context_modes_destroy(__GLcontextModes *modes)
+{
+   _eglLog(_EGL_DEBUG, "%s", __FUNCTION__);
+
+   while (modes) {
+      __GLcontextModes * const next = modes->next;
+      free(modes);
+      modes = next;
+   }
+}
+
+
+/**
+ * Create a linked list of 'count' GLcontextModes.
+ * These are used during the client/server visual negotiation phase,
+ * then discarded.
+ */
+static __GLcontextModes *
+dri_context_modes_create(unsigned count, size_t minimum_size)
+{
+   /* This code copied from libGLX, and modified */
+   const size_t size = (minimum_size > sizeof(__GLcontextModes))
+       ? minimum_size : sizeof(__GLcontextModes);
+   __GLcontextModes * head = NULL;
+   __GLcontextModes ** next;
+   unsigned   i;
+
+   next = & head;
+   for (i = 0 ; i < count ; i++) {
+      *next = (__GLcontextModes *) calloc(1, size);
+      if (*next == NULL) {
+	 dri_context_modes_destroy(head);
+	 head = NULL;
+	 break;
+      }
+      
+      (*next)->doubleBufferMode = 1;
+      (*next)->visualID = GLX_DONT_CARE;
+      (*next)->visualType = GLX_DONT_CARE;
+      (*next)->visualRating = GLX_NONE;
+      (*next)->transparentPixel = GLX_NONE;
+      (*next)->transparentRed = GLX_DONT_CARE;
+      (*next)->transparentGreen = GLX_DONT_CARE;
+      (*next)->transparentBlue = GLX_DONT_CARE;
+      (*next)->transparentAlpha = GLX_DONT_CARE;
+      (*next)->transparentIndex = GLX_DONT_CARE;
+      (*next)->xRenderable = GLX_DONT_CARE;
+      (*next)->fbconfigID = GLX_DONT_CARE;
+      (*next)->swapMethod = GLX_SWAP_UNDEFINED_OML;
+      (*next)->bindToTextureRgb = GLX_DONT_CARE;
+      (*next)->bindToTextureRgba = GLX_DONT_CARE;
+      (*next)->bindToMipmapTexture = GLX_DONT_CARE;
+      (*next)->bindToTextureTargets = 0;
+      (*next)->yInverted = GLX_DONT_CARE;
+
+      next = & ((*next)->next);
+   }
+
+   return head;
+}
+
+
+static __DRIscreen *
+dri_find_dri_screen(__DRInativeDisplay *ndpy, int scrn)
+{
+   /* unused? */
+   return NULL;
+}
+
+
+static GLboolean
+dri_window_exists(__DRInativeDisplay *dpy, __DRIid draw)
+{
+   return EGL_TRUE;
+}
+
+
+static GLboolean
+dri_create_context(__DRInativeDisplay *dpy, int screenNum, int configID,
+                   void * contextID, drm_context_t * hw_context)
+{
+   assert(configID >= 0);
+   return XF86DRICreateContextWithConfig(dpy, screenNum,
+                                         configID, contextID, hw_context);
+}
+
+
+static GLboolean
+dri_destroy_context(__DRInativeDisplay * ndpy, int screen, __DRIid context)
+{
+   return XF86DRIDestroyContext(ndpy, screen, context);
+}
+
+
+static GLboolean
+dri_create_drawable(__DRInativeDisplay * ndpy, int screen,
+                    __DRIid drawable, drm_drawable_t * hHWDrawable)
+{
+   _eglLog(_EGL_DEBUG, "XDRI: %s", __FUNCTION__);
+
+   /* Create DRI drawable for given window ID (drawable) */
+   if (!XF86DRICreateDrawable(ndpy, screen, drawable, hHWDrawable))
+      return EGL_FALSE;
+
+   return EGL_TRUE;
+}
+
+
+static GLboolean
+dri_destroy_drawable(__DRInativeDisplay * ndpy, int screen, __DRIid drawable)
+{
+   _eglLog(_EGL_DEBUG, "XDRI: %s", __FUNCTION__);
+   return XF86DRIDestroyDrawable(ndpy, screen, drawable);
+}
+
+
+static GLboolean
+dri_get_drawable_info(__DRInativeDisplay *dpy, int scrn,
+                      __DRIid draw, unsigned int * index, unsigned int * stamp,
+                      int * x, int * y, int * width, int * height,
+                      int * numClipRects, drm_clip_rect_t ** pClipRects,
+                      int * backX, int * backY,
+                      int * numBackClipRects,
+                      drm_clip_rect_t ** pBackClipRects)
+{
+   _eglLog(_EGL_DEBUG, "XDRI: %s", __FUNCTION__);
+
+   if (!XF86DRIGetDrawableInfo(dpy, scrn, draw, index, stamp,
+                               x, y, width, height,
+                               numClipRects, pClipRects,
+                               backX, backY,
+                               numBackClipRects, pBackClipRects)) {
+      return EGL_FALSE;
+   }
+
+   return EGL_TRUE;
+}
+
+
+/**
+ * Table of functions exported by the loader to the driver.
+ */
+static const __DRIinterfaceMethods interface_methods = {
+   dri_get_proc_address,
+
+   dri_context_modes_create,
+   dri_context_modes_destroy,
+
+   dri_find_dri_screen,
+   dri_window_exists,
+
+   dri_create_context,
+   dri_destroy_context,
+
+   dri_create_drawable,
+   dri_destroy_drawable,
+   dri_get_drawable_info,
+
+   NULL,/*__eglGetUST,*/
+   NULL,/*__eglGetMSCRate,*/
+};
+
+
+
+static EGLBoolean
+init_drm(struct xdri_egl_driver *xdri_drv, _EGLDisplay *disp)
+{
+   static const char createNewScreenName[] = "__driCreateNewScreen_20050727";
+   PFNCREATENEWSCREENFUNC createNewScreen;
+   int api_ver = 0;/*__glXGetInternalVersion();*/
+   __DRIversion ddx_version;
+   __DRIversion dri_version;
+   __DRIversion drm_version;
+   drmVersionPtr version;
+   drm_handle_t  hFB;
+   int newlyopened;
+   int status;
+   __GLcontextModes *modes;
+   int scrn = DefaultScreen(disp->Xdpy);
+
+   createNewScreen = (PFNCREATENEWSCREENFUNC)
+      dlsym(xdri_drv->dri_driver_handle, createNewScreenName);
+   if (!createNewScreen) {
+      _eglLog(_EGL_WARNING, "XDRI: Couldn't find %s function in the driver.",
+              createNewScreenName);
+      return EGL_FALSE;
+   }
+   else {
+      _eglLog(_EGL_DEBUG, "XDRI: Found %s", createNewScreenName);
+   }
+
+   /*
+    * Get the DRI X extension version.
+    */
+   dri_version.major = 4;
+   dri_version.minor = 0;
+   dri_version.patch = 0;
+
+
+   if (!XF86DRIOpenConnection(disp->Xdpy, scrn,
+                              &xdri_drv->hSAREA, &xdri_drv->busID)) {
+      _eglLog(_EGL_WARNING, "XF86DRIOpenConnection failed");
+   }
+
+   xdri_drv->drmFD = drmOpenOnce(NULL, xdri_drv->busID, &newlyopened);
+   if (xdri_drv->drmFD < 0) {
+      perror("drmOpenOnce failed: ");
+      return EGL_FALSE;
+   }
+   else {
+      _eglLog(_EGL_DEBUG, "XDRI: drmOpenOnce returned %d", xdri_drv->drmFD);
+   }
+
+
+   if (drmGetMagic(xdri_drv->drmFD, &xdri_drv->magic)) {
+      perror("drmGetMagic failed: ");
+      return EGL_FALSE;
+   }
+
+   version = drmGetVersion(xdri_drv->drmFD);
+   if (version) {
+      drm_version.major = version->version_major;
+      drm_version.minor = version->version_minor;
+      drm_version.patch = version->version_patchlevel;
+      drmFreeVersion(version);
+      _eglLog(_EGL_DEBUG, "XDRI: Got DRM version %d.%d.%d",
+              drm_version.major,
+              drm_version.minor,
+              drm_version.patch);
+   }
+   else {
+      drm_version.major = -1;
+      drm_version.minor = -1;
+      drm_version.patch = -1;
+      _eglLog(_EGL_WARNING, "XDRI: drmGetVersion() failed");
+      return EGL_FALSE;
+   }
+
+   /* Authenticate w/ server.
+    */
+   if (!XF86DRIAuthConnection(disp->Xdpy, scrn, xdri_drv->magic)) {
+      _eglLog(_EGL_WARNING, "XDRI: XF86DRIAuthConnection() failed");
+      return EGL_FALSE;
+   }
+   else {
+      _eglLog(_EGL_DEBUG, "XDRI: XF86DRIAuthConnection() success");
+   }
+
+   /* Get ddx version.
+    */
+   {
+      char *driverName;
+
+      /*
+       * Get device name (like "tdfx") and the ddx version
+       * numbers.  We'll check the version in each DRI driver's
+       * "createNewScreen" function.
+       */
+      if (!XF86DRIGetClientDriverName(disp->Xdpy, scrn,
+                                     &ddx_version.major,
+                                     &ddx_version.minor,
+                                     &ddx_version.patch,
+                                     &driverName)) {
+         _eglLog(_EGL_WARNING, "XDRI: XF86DRIGetClientDriverName failed");
+         return EGL_FALSE;
+      }
+      else {
+         _eglLog(_EGL_DEBUG, "XDRI: XF86DRIGetClientDriverName returned %s", driverName);
+      }
+   }
+
+   /* Get framebuffer info.
+    */
+   {
+      int junk;
+      if (!XF86DRIGetDeviceInfo(disp->Xdpy, scrn,
+                                &hFB,
+                                &junk,
+                                &xdri_drv->framebuffer.size,
+                                &xdri_drv->framebuffer.stride,
+                                &xdri_drv->framebuffer.dev_priv_size,
+                                &xdri_drv->framebuffer.dev_priv)) {
+         _eglLog(_EGL_WARNING, "XDRI: XF86DRIGetDeviceInfo() failed");
+         return EGL_FALSE;
+      }
+      else {
+         _eglLog(_EGL_DEBUG, "XDRI: XF86DRIGetDeviceInfo() success");
+      }
+      xdri_drv->framebuffer.width = DisplayWidth(disp->Xdpy, scrn);
+      xdri_drv->framebuffer.height = DisplayHeight(disp->Xdpy, scrn);
+   }
+
+   /* Map the framebuffer region. (this may not be needed)
+    */
+   status = drmMap(xdri_drv->drmFD, hFB, xdri_drv->framebuffer.size, 
+                   (drmAddressPtr) &xdri_drv->framebuffer.base);
+   if (status != 0) {
+      _eglLog(_EGL_WARNING, "XDRI: drmMap(framebuffer) failed");
+      return EGL_FALSE;
+   }
+   else {
+      _eglLog(_EGL_DEBUG, "XDRI: drmMap(framebuffer) success");
+   }
+
+   /* Map the SAREA region.
+    */
+   status = drmMap(xdri_drv->drmFD, xdri_drv->hSAREA, SAREA_MAX, &xdri_drv->pSAREA);
+   if (status != 0) {
+      _eglLog(_EGL_WARNING, "XDRI: drmMap(sarea) failed");
+      return EGL_FALSE;
+   }
+   else {
+      _eglLog(_EGL_DEBUG, "XDRI: drmMap(sarea) success");
+   }
+
+   /* Create the DRI screen.
+    */
+   xdri_drv->driScreen.private = createNewScreen(disp->Xdpy,
+                                             scrn,  /* screen number */
+                                             &xdri_drv->driScreen,
+                                             NULL,  /* visuals */
+                                             &ddx_version,
+                                             &dri_version,
+                                             &drm_version,
+                                             &xdri_drv->framebuffer,
+                                             xdri_drv->pSAREA,
+                                             xdri_drv->drmFD,
+                                             api_ver,
+                                             &interface_methods,
+                                             &modes);
+   if (!xdri_drv->driScreen.private) {
+      _eglLog(_EGL_WARNING, "XDRI: create new screen failed");
+      return EGL_FALSE;
+   }
+   else {
+      _eglLog(_EGL_DEBUG, "XDRI: create new screen success");
+   }
+
+   create_configs(disp);
+
+   /* print modes / debug */
+   if (0) {
+      __GLcontextModes *m;
+
+      for (m = modes; m; m = m->next) {
+         _eglLog(_EGL_DEBUG,
+                 "mode ID 0x%x rgba %d %d %d %d  z %d  s %d  db %d\n", m->visualID,
+                 m->redBits, m->greenBits, m->blueBits, m->alphaBits,
+                 m->depthBits, m->stencilBits, m->doubleBufferMode);
+      }
+   }
+
+   return EGL_TRUE;
+}
+
+
+static EGLBoolean
+load_dri_driver(struct xdri_egl_driver *xdri_drv)
+{
+   char filename[100];
+   int flags = RTLD_NOW;
+
+   snprintf(filename, sizeof(filename), "%s.so", xdri_drv->dri_driver_name);
+   _eglLog(_EGL_DEBUG, "XDRI: dlopen(%s)", filename);
+
+   xdri_drv->dri_driver_handle = dlopen(filename, flags);
+   if (!xdri_drv->dri_driver_handle) {
+      _eglLog(_EGL_WARNING, "XDRI Could not open %s (%s)",
+              filename, dlerror());
+
+      return EGL_FALSE;
+   }
+   return EGL_TRUE;
+}
+
+
+/**
+ * Called via eglInitialize(), xdri_drv->API.Initialize().
+ */
+static EGLBoolean
+xdri_eglInitialize(_EGLDriver *drv, EGLDisplay dpy,
+                   EGLint *minor, EGLint *major)
+{
+   struct xdri_egl_driver *xdri_drv = xdri_egl_driver(drv);
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   static char name[100];
+
+   _eglLog(_EGL_DEBUG, "XDRI: eglInitialize");
+
+   if (!disp->Xdpy) {
+      disp->Xdpy = XOpenDisplay(NULL);
+      if (!disp->Xdpy) {
+         _eglLog(_EGL_WARNING, "XDRI: XOpenDisplay failed");
+         return EGL_FALSE;
+      }
+   }
+
+   /* choose the DRI driver to load */
+   xdri_drv->dri_driver_name = _eglChooseDRMDriver(0);
+   if (!load_dri_driver(xdri_drv))
+      return EGL_FALSE;
+
+   if (!init_drm(xdri_drv, disp))
+      return EGL_FALSE;
+
+   xdri_drv->Base.Initialized = EGL_TRUE;
+
+   snprintf(name, sizeof(name), "X/DRI:%s", xdri_drv->dri_driver_name);
+   xdri_drv->Base.Name = name;
+
+   /* we're supporting EGL 1.4 */
+   *minor = 1;
+   *major = 4;
+
+   return EGL_TRUE;
+}
+
+
+/**
+ * Called via eglTerminate(), drv->API.Terminate().
+ */
+static EGLBoolean
+xdri_eglTerminate(_EGLDriver *drv, EGLDisplay dpy)
+{
+   struct xdri_egl_driver *xdri_drv = xdri_egl_driver(drv);
+
+   _eglLog(_EGL_DEBUG, "XDRI: eglTerminate");
+
+   _eglLog(_EGL_DEBUG, "XDRI: Closing %s", xdri_drv->dri_driver_name);
+   dlclose(xdri_drv->dri_driver_handle);
+   xdri_drv->dri_driver_handle = NULL;
+
+   free((void*) xdri_drv->dri_driver_name);
+
+   return EGL_TRUE;
+}
+
+
+/**
+ * Called via eglCreateContext(), drv->API.CreateContext().
+ */
+static EGLContext
+xdri_eglCreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
+                      EGLContext share_list, const EGLint *attrib_list)
+{
+   struct xdri_egl_driver *xdri_drv = xdri_egl_driver(drv);
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   struct xdri_egl_config *xdri_config = lookup_config(drv, dpy, config);
+   void *shared = NULL;
+   int renderType = GLX_RGBA_BIT;
+
+   struct xdri_egl_context *xdri_ctx = CALLOC_STRUCT(xdri_egl_context);
+   if (!xdri_ctx)
+      return EGL_NO_CONTEXT;
+
+   if (!_eglInitContext(drv, dpy, &xdri_ctx->Base, config, attrib_list)) {
+      free(xdri_ctx);
+      return EGL_NO_CONTEXT;
+   }
+
+   assert(xdri_config);
+
+   xdri_ctx->driContext.private = 
+      xdri_drv->driScreen.createNewContext(disp->Xdpy,
+                                           xdri_config->mode, renderType,
+                                           shared, &xdri_ctx->driContext);
+   if (!xdri_ctx->driContext.private) {
+      _eglLog(_EGL_DEBUG, "driScreen.createNewContext failed");
+      free(xdri_ctx);
+      return EGL_NO_CONTEXT;
+   }
+
+   xdri_ctx->driContext.mode = xdri_config->mode;
+
+   return _eglGetContextHandle(&xdri_ctx->Base);
+}
+
+
+/**
+ * Called via eglMakeCurrent(), drv->API.MakeCurrent().
+ */
+static EGLBoolean
+xdri_eglMakeCurrent(_EGLDriver *drv, EGLDisplay dpy, EGLSurface d,
+                    EGLSurface r, EGLContext context)
+{
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   struct xdri_egl_context *xdri_ctx = lookup_context(context);
+   struct xdri_egl_surface *xdri_draw = lookup_surface(d);
+   struct xdri_egl_surface *xdri_read = lookup_surface(r);
+   __DRIid draw = xdri_draw->driDrawable;
+   __DRIid read = xdri_read->driDrawable;
+   int scrn = DefaultScreen(disp->Xdpy);
+
+   if (!_eglMakeCurrent(drv, dpy, d, r, context))
+      return EGL_FALSE;
+
+
+   if (!xdri_ctx->driContext.bindContext(disp->Xdpy, scrn, draw, read,
+                                         &xdri_ctx->driContext)) {
+      return EGL_FALSE;
+   }
+
+   return EGL_TRUE;
+}
+
+
+/**
+ * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
+ */
+static EGLSurface
+xdri_eglCreateWindowSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
+                            NativeWindowType window, const EGLint *attrib_list)
+{
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   struct xdri_egl_surface *xdri_surf;
+   int scrn = DefaultScreen(disp->Xdpy);
+
+   xdri_surf = CALLOC_STRUCT(xdri_egl_surface);
+   if (!xdri_surf)
+      return EGL_NO_SURFACE;
+
+   if (!_eglInitSurface(drv, dpy, &xdri_surf->Base, EGL_WINDOW_BIT,
+                        config, attrib_list)) {
+      free(xdri_surf);
+      return EGL_FALSE;
+   }
+
+   if (!XF86DRICreateDrawable(disp->Xdpy, scrn, window, &xdri_surf->hDrawable)) {
+      free(xdri_surf);
+      return EGL_FALSE;
+   }
+
+   xdri_surf->driDrawable = window;
+
+   _eglSaveSurface(&xdri_surf->Base);
+
+   _eglLog(_EGL_DEBUG,
+           "XDRI: CreateWindowSurface win 0x%x  handle %d  hDrawable %d",
+           (int) window, _eglGetSurfaceHandle(&xdri_surf->Base),
+           (int) xdri_surf->hDrawable);
+
+   return _eglGetSurfaceHandle(&xdri_surf->Base);
+}
+
+
+static EGLBoolean
+xdri_eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface)
+{
+   struct xdri_egl_surface *xdri_surf = lookup_surface(surface);
+   if (xdri_surf) {
+      _eglHashRemove(_eglGlobal.Surfaces, (EGLuint) surface);
+      if (xdri_surf->Base.IsBound) {
+         xdri_surf->Base.DeletePending = EGL_TRUE;
+      }
+      else {
+         /*
+         st_unreference_framebuffer(&surf->Framebuffer);
+         */
+         free(xdri_surf);
+      }
+      return EGL_TRUE;
+   }
+   else {
+      _eglError(EGL_BAD_SURFACE, "eglDestroySurface");
+      return EGL_FALSE;
+   }
+}
+
+
+static EGLBoolean
+xdri_eglSwapBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw)
+{
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+
+   _eglLog(_EGL_DEBUG, "XDRI: EGL SwapBuffers");
+
+   /* error checking step: */
+   if (!_eglSwapBuffers(drv, dpy, draw))
+      return EGL_FALSE;
+
+   {
+      struct xdri_egl_surface *xdri_surf = lookup_surface(draw);
+      __GLXdisplayPrivate *priv = __glXInitialize(disp->Xdpy);
+      __GLXscreenConfigs *scrn = priv->screenConfigs;
+      __DRIscreen *psc = &scrn->driScreen;
+      __DRIdrawable * const pdraw = psc->getDrawable(disp->Xdpy,
+                                                     xdri_surf->driDrawable,
+                                                     psc->private);
+
+      if (pdraw)
+         pdraw->swapBuffers(disp->Xdpy, pdraw->private);
+      else
+         _eglLog(_EGL_WARNING, "pdraw is null in SwapBuffers");
+   }
+
+   return EGL_TRUE;
+}
+
+
+/**
+ * This is the main entrypoint into the driver, called by libEGL.
+ * Create a new _EGLDriver object and init its dispatch table.
+ */
+_EGLDriver *
+_eglMain(_EGLDisplay *disp, const char *args)
+{
+   struct xdri_egl_driver *xdri_drv = CALLOC_STRUCT(xdri_egl_driver);
+   if (!xdri_drv)
+      return NULL;
+
+   _eglInitDriverFallbacks(&xdri_drv->Base);
+   xdri_drv->Base.API.Initialize = xdri_eglInitialize;
+   xdri_drv->Base.API.Terminate = xdri_eglTerminate;
+
+   xdri_drv->Base.API.CreateContext = xdri_eglCreateContext;
+   xdri_drv->Base.API.MakeCurrent = xdri_eglMakeCurrent;
+   xdri_drv->Base.API.CreateWindowSurface = xdri_eglCreateWindowSurface;
+   xdri_drv->Base.API.DestroySurface = xdri_eglDestroySurface;
+   xdri_drv->Base.API.SwapBuffers = xdri_eglSwapBuffers;
+
+   xdri_drv->Base.ClientAPIsMask = EGL_OPENGL_BIT /*| EGL_OPENGL_ES_BIT*/;
+   xdri_drv->Base.Name = "X/DRI";
+
+   _eglLog(_EGL_DEBUG, "XDRI: main(%s)", args);
+
+   return &xdri_drv->Base;
+}