[PATCH 2/2] egl_dri2: Adding swrast and refactoring

Haitao Feng haitao.feng at intel.com
Sat Jan 29 23:50:01 PST 2011


This enables the egl_dri2 driver to load swrast driver
for software rendering. It could be used when hardware
dri2 driver is not available, such as in VM. After the
swrast enabling, I refactor the code as egl image functions
are not supported in swrast and egl surface functions
are not supported in drm. After refactoring, egl_dri2.c
contains functions shared between drm, x11_dri2 and
x11_swrast. dri2_shared.c contains functions shared between
drm and x11_dri2. x11_shared.c contains functions shared
between x11_dri2 and x11_swrast.

Note: this is a candidate for the 7.9 branch.

Signed-off-by: Haitao Feng <haitao.feng at intel.com>
---
 src/egl/drivers/dri2/Makefile      |    2 +-
 src/egl/drivers/dri2/dri2_shared.c |  390 ++++++++
 src/egl/drivers/dri2/dri2_shared.h |   64 ++
 src/egl/drivers/dri2/drm_dri2.c    |  250 ++++++
 src/egl/drivers/dri2/egl_dri2.c    | 1740 +++++-------------------------------
 src/egl/drivers/dri2/egl_dri2.h    |  148 +++
 src/egl/drivers/dri2/x11_dri2.c    |  745 +++++++++++++++
 src/egl/drivers/dri2/x11_shared.c  |  132 +++
 src/egl/drivers/dri2/x11_shared.h  |   81 ++
 src/egl/drivers/dri2/x11_swrast.c  |  486 ++++++++++
 10 files changed, 2517 insertions(+), 1521 deletions(-)
 create mode 100644 src/egl/drivers/dri2/dri2_shared.c
 create mode 100644 src/egl/drivers/dri2/dri2_shared.h
 create mode 100644 src/egl/drivers/dri2/drm_dri2.c
 create mode 100644 src/egl/drivers/dri2/egl_dri2.h
 create mode 100644 src/egl/drivers/dri2/x11_dri2.c
 create mode 100644 src/egl/drivers/dri2/x11_shared.c
 create mode 100644 src/egl/drivers/dri2/x11_shared.h
 create mode 100644 src/egl/drivers/dri2/x11_swrast.c

diff --git a/src/egl/drivers/dri2/Makefile b/src/egl/drivers/dri2/Makefile
index 8a3c9b6..7fe121d 100644
--- a/src/egl/drivers/dri2/Makefile
+++ b/src/egl/drivers/dri2/Makefile
@@ -4,7 +4,7 @@ TOP = ../../../..
 include $(TOP)/configs/current
 
 EGL_DRIVER = egl_dri2.so
-EGL_SOURCES = egl_dri2.c
+EGL_SOURCES = egl_dri2.c dri2_shared.c x11_shared.c drm_dri2.c x11_dri2.c x11_swrast.c
 
 EGL_INCLUDES = \
 	-I$(TOP)/include \
diff --git a/src/egl/drivers/dri2/dri2_shared.c b/src/egl/drivers/dri2/dri2_shared.c
new file mode 100644
index 0000000..38ed182
--- /dev/null
+++ b/src/egl/drivers/dri2/dri2_shared.c
@@ -0,0 +1,390 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS 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:
+ *    Kristian Høgsberg <krh at bitplanet.net>
+ */
+
+#include "dri2_shared.h"
+
+struct dri2_extension_match dri2_driver_extensions[] = {
+   { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
+   { __DRI_DRI2, 1, offsetof(struct dri2_egl_display, dri2) },
+   { NULL }
+};
+
+struct dri2_extension_match dri2_core_extensions[] = {
+   { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
+   { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
+   { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
+   { NULL }
+};
+
+__DRIimage *
+dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
+{
+   _EGLDisplay *disp = data;
+   struct dri2_egl_image *dri2_img;
+   _EGLImage *img;
+
+   img = _eglLookupImage(image, disp);
+   if (img == NULL) {
+      _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
+      return NULL;
+   }
+
+   dri2_img = dri2_egl_image(image);
+
+   return dri2_img->dri_image;
+}
+
+const __DRIimageLookupExtension image_lookup_extension = {
+   { __DRI_IMAGE_LOOKUP, 1 },
+   dri2_lookup_egl_image
+};
+
+EGLBoolean
+dri2_create_screen(_EGLDisplay *disp)
+{
+   const __DRIextension **extensions;
+   struct dri2_egl_display *dri2_dpy;
+   unsigned int api_mask;
+
+   dri2_dpy = disp->DriverData;
+   dri2_dpy->dri_screen =
+      dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
+                                      &dri2_dpy->driver_configs, disp);
+
+   if (dri2_dpy->dri_screen == NULL) {
+      _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
+      return EGL_FALSE;
+   }
+
+   extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
+   if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
+      goto cleanup_dri_screen;
+
+   if (dri2_dpy->dri2->base.version >= 2)
+      api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
+   else
+      api_mask = 1 << __DRI_API_OPENGL;
+
+   disp->ClientAPIsMask = 0;
+   if (api_mask & (1 <<__DRI_API_OPENGL))
+      disp->ClientAPIsMask |= EGL_OPENGL_BIT;
+   if (api_mask & (1 <<__DRI_API_GLES))
+      disp->ClientAPIsMask |= EGL_OPENGL_ES_BIT;
+   if (api_mask & (1 << __DRI_API_GLES2))
+      disp->ClientAPIsMask |= EGL_OPENGL_ES2_BIT;
+
+   if (dri2_dpy->dri2->base.version >= 2) {
+      disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
+      disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
+      disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
+   }
+
+   return EGL_TRUE;
+
+ cleanup_dri_screen:
+   dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
+
+   return EGL_FALSE;
+}
+
+_EGLImage *
+dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
+                                   EGLClientBuffer buffer,
+                                   const EGLint *attr_list)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
+   struct dri2_egl_image *dri2_img;
+   GLuint renderbuffer = (GLuint) buffer;
+
+   if (renderbuffer == 0) {
+      _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
+      return EGL_NO_IMAGE_KHR;
+   }
+
+   dri2_img = malloc(sizeof *dri2_img);
+   if (!dri2_img) {
+      _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
+      return EGL_NO_IMAGE_KHR;
+   }
+
+   if (!_eglInitImage(&dri2_img->base, disp, attr_list))
+      return EGL_NO_IMAGE_KHR;
+
+   dri2_img->dri_image = 
+      dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
+                                                   renderbuffer,
+                                                   dri2_img);
+
+   return &dri2_img->base;
+}
+
+_EGLImage *
+dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
+                                  EGLClientBuffer buffer, const EGLint *attr_list)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   struct dri2_egl_image *dri2_img;
+   EGLint width, height, format, name, stride, pitch, i, err;
+
+   name = (EGLint) buffer;
+
+   err = EGL_SUCCESS;
+   width = 0;
+   height = 0;
+   format = 0;
+   stride = 0;
+
+   for (i = 0; attr_list[i] != EGL_NONE; i++) {
+      EGLint attr = attr_list[i++];
+      EGLint val = attr_list[i];
+
+      switch (attr) {
+      case EGL_WIDTH:
+         width = val;
+         break;
+      case EGL_HEIGHT:
+         height = val;
+         break;
+      case EGL_DRM_BUFFER_FORMAT_MESA:
+         format = val;
+         break;
+      case EGL_DRM_BUFFER_STRIDE_MESA:
+         stride = val;
+         break;
+      default:
+         err = EGL_BAD_ATTRIBUTE;
+         break;
+      }
+
+      if (err != EGL_SUCCESS) {
+         _eglLog(_EGL_WARNING, "bad image attribute 0x%04x", attr);
+         return NULL;
+      }
+   }
+
+   if (width <= 0 || height <= 0 || stride <= 0) {
+      _eglError(EGL_BAD_PARAMETER,
+                "bad width, height or stride");
+      return NULL;
+   }
+
+   switch (format) {
+   case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
+      format = __DRI_IMAGE_FORMAT_ARGB8888;
+      pitch = stride;
+      break;
+   default:
+      _eglError(EGL_BAD_PARAMETER,
+                "dri2_create_image_khr: unsupported pixmap depth");
+      return NULL;
+   }
+
+   dri2_img = malloc(sizeof *dri2_img);
+   if (!dri2_img) {
+      _eglError(EGL_BAD_ALLOC, "dri2_create_image_mesa_drm");
+      return NULL;
+   }
+
+   if (!_eglInitImage(&dri2_img->base, disp, attr_list)) {
+      free(dri2_img);
+      return NULL;
+   }
+
+   dri2_img->dri_image =
+      dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
+                                           width,
+                                           height,
+                                           format,
+                                           name,
+                                           pitch,
+                                           dri2_img);
+   if (dri2_img->dri_image == NULL) {
+      free(dri2_img);
+      _eglError(EGL_BAD_ALLOC, "dri2_create_image_mesa_drm");
+      return NULL;
+   }
+
+   return &dri2_img->base;
+}
+
+_EGLImage *
+dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
+                      _EGLContext *ctx, EGLenum target,
+                      EGLClientBuffer buffer, const EGLint *attr_list)
+{
+   switch (target) {
+   case EGL_GL_RENDERBUFFER_KHR:
+      return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
+   case EGL_DRM_BUFFER_MESA:
+      return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
+   default:
+      _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
+      return EGL_NO_IMAGE_KHR;
+   }
+}
+
+EGLBoolean
+dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   struct dri2_egl_image *dri2_img = dri2_egl_image(image);
+
+   dri2_dpy->image->destroyImage(dri2_img->dri_image);
+   free(dri2_img);
+
+   return EGL_TRUE;
+}
+
+_EGLImage *
+dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
+                           const EGLint *attr_list)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   struct dri2_egl_image *dri2_img;
+   int width, height, format, i;
+   unsigned int use, dri_use, valid_mask;
+
+   EGLint err = EGL_SUCCESS;
+
+   dri2_img = malloc(sizeof *dri2_img);
+   if (!dri2_img) {
+      _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
+      return EGL_NO_IMAGE_KHR;
+   }
+
+   if (!attr_list) {
+      err = EGL_BAD_PARAMETER;
+      goto cleanup_img;
+   }
+
+   if (!_eglInitImage(&dri2_img->base, disp, attr_list)) {
+      err = EGL_BAD_PARAMETER;
+      goto cleanup_img;
+   }
+
+   width = 0;
+   height = 0;
+   format = 0;
+   use = 0;
+   for (i = 0; attr_list[i] != EGL_NONE; i++) {
+      EGLint attr = attr_list[i++];
+      EGLint val = attr_list[i];
+
+      switch (attr) {
+      case EGL_WIDTH:
+         width = val;
+         break;
+      case EGL_HEIGHT:
+         height = val;
+         break;
+      case EGL_DRM_BUFFER_FORMAT_MESA:
+         format = val;
+         break;
+      case EGL_DRM_BUFFER_USE_MESA:
+         use = val;
+         break;
+      default:
+         err = EGL_BAD_ATTRIBUTE;
+         break;
+      }
+
+      if (err != EGL_SUCCESS) {
+         _eglLog(_EGL_WARNING, "bad image attribute 0x%04x", attr);
+         goto cleanup_img;
+      }
+   }
+
+   if (width <= 0 || height <= 0) {
+      _eglLog(_EGL_WARNING, "bad width or height (%dx%d)", width, height);
+      goto cleanup_img;
+   }
+
+   switch (format) {
+   case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
+      format = __DRI_IMAGE_FORMAT_ARGB8888;
+      break;
+   default:
+      _eglLog(_EGL_WARNING, "bad image format value 0x%04x", format);
+      goto cleanup_img;
+   }
+
+   valid_mask =
+      EGL_DRM_BUFFER_USE_SCANOUT_MESA |
+      EGL_DRM_BUFFER_USE_SHARE_MESA; 
+   if (use & ~valid_mask) {
+      _eglLog(_EGL_WARNING, "bad image use bit 0x%04x", use & ~valid_mask);
+      goto cleanup_img;
+   }
+
+   dri_use = 0;
+   if (use & EGL_DRM_BUFFER_USE_SHARE_MESA)
+      dri_use |= __DRI_IMAGE_USE_SHARE;
+   if (use & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
+      dri_use |= __DRI_IMAGE_USE_SCANOUT;
+
+   dri2_img->dri_image = 
+      dri2_dpy->image->createImage(dri2_dpy->dri_screen,
+                                   width, height, format, dri_use, dri2_img);
+   if (dri2_img->dri_image == NULL) {
+      err = EGL_BAD_ALLOC;
+      goto cleanup_img;
+   }
+
+   return &dri2_img->base;
+
+ cleanup_img:
+   free(dri2_img);
+   _eglError(err, "dri2_create_drm_image_mesa");
+
+   return EGL_NO_IMAGE_KHR;
+}
+
+EGLBoolean
+dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
+                          EGLint *name, EGLint *handle, EGLint *stride)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   struct dri2_egl_image *dri2_img = dri2_egl_image(img);
+
+   if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
+                                            __DRI_IMAGE_ATTRIB_NAME, name)) {
+      _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
+      return EGL_FALSE;
+   }
+
+   if (handle)
+      dri2_dpy->image->queryImage(dri2_img->dri_image,
+                                  __DRI_IMAGE_ATTRIB_HANDLE, handle);
+
+   if (stride)
+      dri2_dpy->image->queryImage(dri2_img->dri_image,
+                                  __DRI_IMAGE_ATTRIB_STRIDE, stride);
+
+   return EGL_TRUE;
+}
+
diff --git a/src/egl/drivers/dri2/dri2_shared.h b/src/egl/drivers/dri2/dri2_shared.h
new file mode 100644
index 0000000..c593bc8
--- /dev/null
+++ b/src/egl/drivers/dri2/dri2_shared.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS 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:
+ *    Kristian Høgsberg <krh at bitplanet.net>
+ */
+
+#ifndef DRI2_SHARED_INCLUDED
+#define DRI2_SHARED_INCLUDED
+
+#include "egl_dri2.h"
+
+EGLBoolean
+dri2_create_screen(_EGLDisplay *disp);
+
+__DRIimage *
+dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data);
+
+_EGLImage *
+dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
+                                   EGLClientBuffer buffer,
+                                   const EGLint *attr_list);
+_EGLImage *
+dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
+                                  EGLClientBuffer buffer, const EGLint *attr_list);
+
+_EGLImage *
+dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
+                      _EGLContext *ctx, EGLenum target,
+                      EGLClientBuffer buffer, const EGLint *attr_list);
+
+EGLBoolean
+dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image);
+
+_EGLImage *
+dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
+                           const EGLint *attr_list);
+
+EGLBoolean
+dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
+                           EGLint *name, EGLint *handle, EGLint *stride);
+
+#endif
+
diff --git a/src/egl/drivers/dri2/drm_dri2.c b/src/egl/drivers/dri2/drm_dri2.c
new file mode 100644
index 0000000..9026b64
--- /dev/null
+++ b/src/egl/drivers/dri2/drm_dri2.c
@@ -0,0 +1,250 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS 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:
+ *    Kristian Høgsberg <krh at bitplanet.net>
+ */
+
+#ifdef HAVE_LIBUDEV
+
+#include <libudev.h>
+#include "dri2_shared.h"
+
+static const __DRIuseInvalidateExtension use_invalidate = {
+   { __DRI_USE_INVALIDATE, 1 }
+};
+
+extern const __DRIimageLookupExtension image_lookup_extension;
+extern struct dri2_extension_match dri2_driver_extensions[];
+extern struct dri2_extension_match dri2_core_extensions[];
+
+struct dri2_driver_map {
+   int vendor_id;
+   const char *driver;
+   const int *chip_ids;
+   int num_chips_ids;
+};
+
+const int i915_chip_ids[] = {
+   0x3577, /* PCI_CHIP_I830_M */
+   0x2562, /* PCI_CHIP_845_G */
+   0x3582, /* PCI_CHIP_I855_GM */
+   0x2572, /* PCI_CHIP_I865_G */
+   0x2582, /* PCI_CHIP_I915_G */
+   0x258a, /* PCI_CHIP_E7221_G */
+   0x2592, /* PCI_CHIP_I915_GM */
+   0x2772, /* PCI_CHIP_I945_G */
+   0x27a2, /* PCI_CHIP_I945_GM */
+   0x27ae, /* PCI_CHIP_I945_GME */
+   0x29b2, /* PCI_CHIP_Q35_G */
+   0x29c2, /* PCI_CHIP_G33_G */
+   0x29d2, /* PCI_CHIP_Q33_G */
+   0xa001, /* PCI_CHIP_IGD_G */
+   0xa011, /* Pineview */
+};
+
+const int i965_chip_ids[] = {
+   0x0042, /* PCI_CHIP_ILD_G */
+   0x0046, /* PCI_CHIP_ILM_G */
+   0x0102, /* PCI_CHIP_SANDYBRIDGE_GT1 */
+   0x0106, /* PCI_CHIP_SANDYBRIDGE_M_GT1 */
+   0x010a, /* PCI_CHIP_SANDYBRIDGE_S */
+   0x0112, /* PCI_CHIP_SANDYBRIDGE_GT2 */
+   0x0116, /* PCI_CHIP_SANDYBRIDGE_M_GT2 */
+   0x0122, /* PCI_CHIP_SANDYBRIDGE_GT2_PLUS */
+   0x0126, /* PCI_CHIP_SANDYBRIDGE_M_GT2_PLUS */
+   0x29a2, /* PCI_CHIP_I965_G */
+   0x2992, /* PCI_CHIP_I965_Q */
+   0x2982, /* PCI_CHIP_I965_G_1 */
+   0x2972, /* PCI_CHIP_I946_GZ */
+   0x2a02, /* PCI_CHIP_I965_GM */
+   0x2a12, /* PCI_CHIP_I965_GME */
+   0x2a42, /* PCI_CHIP_GM45_GM */
+   0x2e02, /* PCI_CHIP_IGD_E_G */
+   0x2e12, /* PCI_CHIP_Q45_G */
+   0x2e22, /* PCI_CHIP_G45_G */
+   0x2e32, /* PCI_CHIP_G41_G */
+   0x2e42, /* PCI_CHIP_B43_G */
+   0x2e92, /* PCI_CHIP_B43_G1 */
+};
+
+const struct dri2_driver_map driver_map[] = {
+   { 0x8086, "i915", i915_chip_ids, ARRAY_SIZE(i915_chip_ids) },
+   { 0x8086, "i965", i965_chip_ids, ARRAY_SIZE(i965_chip_ids) },
+};
+
+static char *
+dri2_get_driver_for_fd(int fd)
+{
+   struct udev *udev;
+   struct udev_device *device, *parent;
+   struct stat buf;
+   const char *pci_id;
+   char *driver = NULL;
+   int vendor_id, chip_id, i, j;
+
+   udev = udev_new();
+   if (fstat(fd, &buf) < 0) {
+      _eglLog(_EGL_WARNING, "EGL-DRI2: failed to stat fd %d", fd);
+      goto out;
+   }
+
+   device = udev_device_new_from_devnum(udev, 'c', buf.st_rdev);
+   if (device == NULL) {
+      _eglLog(_EGL_WARNING,
+              "EGL-DRI2: could not create udev device for fd %d", fd);
+      goto out;
+   }
+
+   parent = udev_device_get_parent(device);
+   if (parent == NULL) {
+      _eglLog(_EGL_WARNING, "DRI2: could not get parent device");
+      goto out;
+   }
+
+   pci_id = udev_device_get_property_value(parent, "PCI_ID");
+   if (pci_id == NULL || sscanf(pci_id, "%x:%x", &vendor_id, &chip_id) != 2) {
+      _eglLog(_EGL_WARNING, "EGL-DRI2: malformed or no PCI ID");
+      goto out;
+   }
+
+   for (i = 0; i < ARRAY_SIZE(driver_map); i++) {
+      if (vendor_id != driver_map[i].vendor_id)
+         continue;
+      for (j = 0; j < driver_map[i].num_chips_ids; j++)
+         if (driver_map[i].chip_ids[j] == chip_id) {
+            driver = strdup(driver_map[i].driver);
+            _eglLog(_EGL_DEBUG, "pci id for %d: %04x:%04x, driver %s",
+                    fd, vendor_id, chip_id, driver);
+            goto out;
+         }
+   }
+
+ out:
+   udev_device_unref(device);
+   udev_unref(udev);
+
+   return driver;
+}
+
+/**
+ * Called via eglTerminate(), drv->API.Terminate().
+ */
+static EGLBoolean
+dri2_drm_dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+
+   _eglReleaseDisplayResources(drv, disp);
+   _eglCleanupDisplay(disp);
+
+   dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
+   close(dri2_dpy->fd);
+   dlclose(dri2_dpy->driver);
+   free(dri2_dpy);
+   disp->DriverData = NULL;
+
+   return EGL_TRUE;
+}
+
+static void
+dri2_drm_initialize_driver(_EGLDriver *drv)
+{
+   struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
+
+   dri2_drv->base.API.Terminate = dri2_drm_dri2_terminate;
+   dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
+   dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
+   dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
+   dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
+
+/**
+ *  Currently un-supported functions:
+ *     CreateWindowSurface, CreatePixmapSurface, CreatePbufferSurface, DestroySurface 
+ *     SwapBuffers, SwapBuffersRegionNOK, CopyBuffers
+*/
+
+   dri2_drv->base.Name = "DRI2_DRM";
+}
+
+EGLBoolean
+dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp,
+                    EGLint *major, EGLint *minor)
+{
+   struct dri2_egl_display *dri2_dpy;
+   const __DRIextension **extensions;
+   int i;
+
+   dri2_dpy = malloc(sizeof *dri2_dpy);
+   if (!dri2_dpy)
+      return _eglError(EGL_BAD_ALLOC, "eglInitialize");
+
+   memset(dri2_dpy, 0, sizeof *dri2_dpy);
+
+   disp->DriverData = (void *) dri2_dpy;
+   dri2_dpy->fd = (int) disp->PlatformDisplay;
+
+   dri2_dpy->driver_name = dri2_get_driver_for_fd(dri2_dpy->fd);
+   if (dri2_dpy->driver_name == NULL)
+      return _eglError(EGL_BAD_ALLOC, "DRI2: failed to get driver name");
+
+   extensions = dri2_load_driver(disp);
+   if (extensions == NULL)
+      goto cleanup_driver_name;
+
+  if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
+      goto cleanup_driver;
+   }
+
+   dri2_dpy->extensions[0] = &image_lookup_extension.base;
+   dri2_dpy->extensions[1] = &use_invalidate.base;
+   dri2_dpy->extensions[2] = NULL;
+
+   if (!dri2_create_screen(disp))
+      goto cleanup_driver;
+
+   for (i = 0; dri2_dpy->driver_configs[i]; i++)
+      dri2_add_config(disp, dri2_dpy->driver_configs[i], i + 1, 0, 0, 1);
+
+   disp->Extensions.MESA_drm_image = EGL_TRUE;
+   disp->Extensions.KHR_image_base = EGL_TRUE;
+   disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
+   disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
+
+   /* we're supporting EGL 1.4 */
+   *major = 1;
+   *minor = 4;
+
+   dri2_drm_initialize_driver(drv);
+
+   return EGL_TRUE;
+
+ cleanup_driver:
+   dlclose(dri2_dpy->driver);
+ cleanup_driver_name:
+   free(dri2_dpy->driver_name);
+
+   return EGL_FALSE;
+}
+
+#endif
diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index dd0cc30..966218d 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -25,106 +25,115 @@
  *    Kristian Høgsberg <krh at bitplanet.net>
  */
 
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <limits.h>
-#include <dlfcn.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <unistd.h>
-#include <xf86drm.h>
-#include <GL/gl.h>
-#include <GL/internal/dri_interface.h>
-#include <xcb/xcb.h>
-#include <xcb/dri2.h>
-#include <xcb/xfixes.h>
-#include <X11/Xlib-xcb.h>
-#include <sys/types.h>
-#include <sys/stat.h>
+#include "egl_dri2.h"
 
-#ifdef HAVE_LIBUDEV
-#include <libudev.h>
-#endif
+static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
+
+EGLBoolean
+dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
+                     struct dri2_extension_match *matches,
+                     const __DRIextension **extensions)
+{
+   int i, j, ret = EGL_TRUE;
+   void *field;
 
-#include <glapi/glapi.h>
-#include "eglconfig.h"
-#include "eglcontext.h"
-#include "egldisplay.h"
-#include "egldriver.h"
-#include "eglcurrent.h"
-#include "egllog.h"
-#include "eglsurface.h"
-#include "eglimage.h"
+   for (i = 0; extensions[i]; i++) {
+      _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
+      for (j = 0; matches[j].name; j++) {
+         if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
+             extensions[i]->version >= matches[j].version) {
+            field = ((char *) dri2_dpy + matches[j].offset);
+            *(const __DRIextension **) field = extensions[i];
+            _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
+                    extensions[i]->name, extensions[i]->version);
+         }
+      }
+   }
+   
+   for (j = 0; matches[j].name; j++) {
+      field = ((char *) dri2_dpy + matches[j].offset);
+      if (*(const __DRIextension **) field == NULL) {
+         _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
+                 matches[j].name, matches[j].version);
+         ret = EGL_FALSE;
+      }
+   }
 
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+   return ret;
+}
 
-struct dri2_egl_driver
+char *
+dri2_strndup(const char *s, int length)
 {
-   _EGLDriver base;
+   char *d;
 
-   void (*glFlush)(void);
-};
+   d = malloc(length + 1);
+   if (d == NULL)
+      return NULL;
 
-struct dri2_egl_display
-{
-   xcb_connection_t         *conn;
-   int                       dri2_major;
-   int                       dri2_minor;
-   __DRIscreen              *dri_screen;
-   const __DRIconfig       **driver_configs;
-   void                     *driver;
-   __DRIcoreExtension       *core;
-   __DRIdri2Extension       *dri2;
-   __DRI2flushExtension     *flush;
-   __DRItexBufferExtension  *tex_buffer;
-   __DRIimageExtension      *image;
-   int                       fd;
-
-   char                     *device_name;
-   char                     *driver_name;
-
-   __DRIdri2LoaderExtension  loader_extension;
-   const __DRIextension     *extensions[3];
-};
+   memcpy(d, s, length);
+   d[length] = '\0';
 
-struct dri2_egl_context
-{
-   _EGLContext   base;
-   __DRIcontext *dri_context;
-};
+   return d;
+}
 
-struct dri2_egl_surface
+const __DRIextension **
+dri2_load_driver(_EGLDisplay *disp)
 {
-   _EGLSurface          base;
-   __DRIdrawable       *dri_drawable;
-   xcb_drawable_t       drawable;
-   __DRIbuffer          buffers[5];
-   int                  buffer_count;
-   xcb_xfixes_region_t  region;
-   int                  have_fake_front;
-   int                  swap_interval;
-};
+   struct dri2_egl_display *dri2_dpy = disp->DriverData;
+   char path[PATH_MAX], *search_paths, *p, *next, *end;
+   const __DRIextension **extensions;
 
-struct dri2_egl_config
-{
-   _EGLConfig         base;
-   const __DRIconfig *dri_config;
-};
+   search_paths = NULL;
+   if (geteuid() == getuid()) {
+      /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
+      search_paths = getenv("LIBGL_DRIVERS_PATH");
+   }
+   if (search_paths == NULL)
+      search_paths = DEFAULT_DRIVER_DIR;
 
-struct dri2_egl_image
-{
-   _EGLImage   base;
-   __DRIimage *dri_image;
-};
+   dri2_dpy->driver = NULL;
+   end = search_paths + strlen(search_paths);
+   for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
+      int len;
+      next = strchr(p, ':');
+      if (next == NULL)
+         next = end;
 
-/* standard typecasts */
-_EGL_DRIVER_STANDARD_TYPECASTS(dri2_egl)
-_EGL_DRIVER_TYPECAST(dri2_egl_image, _EGLImage, obj)
+      len = next - p;
+#if GLX_USE_TLS
+      snprintf(path, sizeof path,
+               "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
+      dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
+#endif
+      if (dri2_dpy->driver == NULL) {
+         snprintf(path, sizeof path,
+                  "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
+         dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
+         if (dri2_dpy->driver == NULL)
+            _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
+      }
+   }
 
-static const __DRIuseInvalidateExtension use_invalidate = {
-   { __DRI_USE_INVALIDATE, 1 }
-};
+   if (dri2_dpy->driver == NULL) {
+      _eglLog(_EGL_WARNING,
+              "DRI2: failed to open any driver (search paths %s)",
+              search_paths);
+      return NULL;
+   }
+
+   _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
+
+   extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
+   if (extensions == NULL) {
+      _eglLog(_EGL_WARNING,
+              "DRI2: driver exports no extensions (%s)", dlerror());
+      dlclose(dri2_dpy->driver);
+      return NULL;
+   }
+
+   return extensions;
+}
 
 EGLint dri2_to_egl_attribute_map[] = {
    0,
@@ -177,9 +186,9 @@ EGLint dri2_to_egl_attribute_map[] = {
    EGL_Y_INVERTED_NOK,		/* __DRI_ATTRIB_YINVERTED */
 };
 
-static struct dri2_egl_config *
+struct dri2_egl_config *
 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
-		int depth, EGLint surface_type)
+                int depth, EGLint surface_type, int accel)
 {
    struct dri2_egl_config *conf;
    struct dri2_egl_display *dri2_dpy;
@@ -199,53 +208,55 @@ dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
    while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
       switch (attrib) {
       case __DRI_ATTRIB_RENDER_TYPE:
-	 if (value & __DRI_ATTRIB_RGBA_BIT)
-	    value = EGL_RGB_BUFFER;
-	 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
-	    value = EGL_LUMINANCE_BUFFER;
-	 else
-	    /* not valid */;
-	 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
-	 break;	 
+         if (value & __DRI_ATTRIB_RGBA_BIT)
+            value = EGL_RGB_BUFFER;
+         else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
+            value = EGL_LUMINANCE_BUFFER;
+         else
+            /* not valid */;
+         _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
+         break;         
 
       case __DRI_ATTRIB_CONFIG_CAVEAT:
          if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
             value = EGL_NON_CONFORMANT_CONFIG;
          else if (value & __DRI_ATTRIB_SLOW_BIT)
             value = EGL_SLOW_CONFIG;
-	 else
-	    value = EGL_NONE;
-	 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
+         else
+            value = EGL_NONE;
+         _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
          break;
 
       case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
-	 bind_to_texture_rgb = value;
-	 break;
+         bind_to_texture_rgb = value;
+         break;
 
       case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
-	 bind_to_texture_rgba = value;
-	 break;
+         bind_to_texture_rgba = value;
+         break;
 
       case __DRI_ATTRIB_DOUBLE_BUFFER:
-	 double_buffer = value;
-	 break;
+         double_buffer = value;
+         break;
 
       default:
-	 key = dri2_to_egl_attribute_map[attrib];
-	 if (key != 0)
-	    _eglSetConfigKey(&base, key, value);
-	 break;
+         key = dri2_to_egl_attribute_map[attrib];
+         if (key != 0)
+            _eglSetConfigKey(&base, key, value);
+         break;
       }
    }
 
-   /* In EGL, double buffer or not isn't a config attribute.  Pixmaps
+   /* In EGL, for DRI2, double buffer or not isn't a config attribute. Pixmaps
     * surfaces are always single buffered, pbuffer surfaces are always
     * back buffers and windows can be either, selected by passing an
     * attribute at window surface construction time.  To support this
     * we ignore all double buffer configs and manipulate the buffer we
-    * return in the getBuffer callback to get the behaviour we want. */
+    * return in the getBuffer callback to get the behaviour we want. 
+    * for swrast, windows, pixmaps and pbuffers are all double buffered */
 
-   if (double_buffer)
+   if ((double_buffer && accel) || 
+       (!double_buffer && !accel))
       return NULL;
 
    if (depth > 0 && depth != _eglGetConfigKey(&base, EGL_BUFFER_SIZE))
@@ -257,783 +268,34 @@ dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
    if (surface_type & (EGL_PIXMAP_BIT | EGL_PBUFFER_BIT)) {
       _eglSetConfigKey(&base, EGL_BIND_TO_TEXTURE_RGB, bind_to_texture_rgb);
       if (_eglGetConfigKey(&base, EGL_ALPHA_SIZE) > 0)
-	 _eglSetConfigKey(&base,
-			  EGL_BIND_TO_TEXTURE_RGBA, bind_to_texture_rgba);
+         _eglSetConfigKey(&base,
+                          EGL_BIND_TO_TEXTURE_RGBA, bind_to_texture_rgba);
    }
 
    _eglSetConfigKey(&base, EGL_RENDERABLE_TYPE, disp->ClientAPIsMask);
    _eglSetConfigKey(&base, EGL_CONFORMANT, disp->ClientAPIsMask);
 
    if (!_eglValidateConfig(&base, EGL_FALSE)) {
-      _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
-      return NULL;
-   }
-
-   conf = malloc(sizeof *conf);
-   if (conf != NULL) {
-      memcpy(&conf->base, &base, sizeof base);
-      conf->dri_config = dri_config;
-      _eglAddConfig(disp, &conf->base);
-   }
-
-   return conf;
-}
-
-/**
- * Process list of buffer received from the server
- *
- * Processes the list of buffers received in a reply from the server to either
- * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat.
- */
-static void
-dri2_process_buffers(struct dri2_egl_surface *dri2_surf,
-		     xcb_dri2_dri2_buffer_t *buffers, unsigned count)
-{
-   struct dri2_egl_display *dri2_dpy =
-      dri2_egl_display(dri2_surf->base.Resource.Display);
-   xcb_rectangle_t rectangle;
-   int i;
-
-   dri2_surf->buffer_count = count;
-   dri2_surf->have_fake_front = 0;
-
-   /* This assumes the DRI2 buffer attachment tokens matches the
-    * __DRIbuffer tokens. */
-   for (i = 0; i < count; i++) {
-      dri2_surf->buffers[i].attachment = buffers[i].attachment;
-      dri2_surf->buffers[i].name = buffers[i].name;
-      dri2_surf->buffers[i].pitch = buffers[i].pitch;
-      dri2_surf->buffers[i].cpp = buffers[i].cpp;
-      dri2_surf->buffers[i].flags = buffers[i].flags;
-
-      /* We only use the DRI drivers single buffer configs.  This
-       * means that if we try to render to a window, DRI2 will give us
-       * the fake front buffer, which we'll use as a back buffer.
-       * Note that EGL doesn't require that several clients rendering
-       * to the same window must see the same aux buffers. */
-      if (dri2_surf->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT)
-         dri2_surf->have_fake_front = 1;
-   }
-
-   if (dri2_surf->region != XCB_NONE)
-      xcb_xfixes_destroy_region(dri2_dpy->conn, dri2_surf->region);
-
-   rectangle.x = 0;
-   rectangle.y = 0;
-   rectangle.width = dri2_surf->base.Width;
-   rectangle.height = dri2_surf->base.Height;
-   dri2_surf->region = xcb_generate_id(dri2_dpy->conn);
-   xcb_xfixes_create_region(dri2_dpy->conn, dri2_surf->region, 1, &rectangle);
-}
-
-static __DRIbuffer *
-dri2_get_buffers(__DRIdrawable * driDrawable,
-		int *width, int *height,
-		unsigned int *attachments, int count,
-		int *out_count, void *loaderPrivate)
-{
-   struct dri2_egl_surface *dri2_surf = loaderPrivate;
-   struct dri2_egl_display *dri2_dpy =
-      dri2_egl_display(dri2_surf->base.Resource.Display);
-   xcb_dri2_dri2_buffer_t *buffers;
-   xcb_dri2_get_buffers_reply_t *reply;
-   xcb_dri2_get_buffers_cookie_t cookie;
-
-   cookie = xcb_dri2_get_buffers_unchecked (dri2_dpy->conn,
-					    dri2_surf->drawable,
-					    count, count, attachments);
-   reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, cookie, NULL);
-   buffers = xcb_dri2_get_buffers_buffers (reply);
-   if (buffers == NULL)
-      return NULL;
-
-   *out_count = reply->count;
-   dri2_surf->base.Width = *width = reply->width;
-   dri2_surf->base.Height = *height = reply->height;
-   dri2_process_buffers(dri2_surf, buffers, *out_count);		       
-
-   free(reply);
-
-   return dri2_surf->buffers;
-}
-
-static void
-dri2_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
-{
-   /* FIXME: Does EGL support front buffer rendering at all? */
-
-#if 0
-   struct dri2_egl_surface *dri2_surf = loaderPrivate;
-
-   dri2WaitGL(dri2_surf);
-#endif
-}
-
-static __DRIimage *
-dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
-{
-   _EGLDisplay *disp = data;
-   struct dri2_egl_image *dri2_img;
-   _EGLImage *img;
-
-   img = _eglLookupImage(image, disp);
-   if (img == NULL) {
-      _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
-      return NULL;
-   }
-
-   dri2_img = dri2_egl_image(image);
-
-   return dri2_img->dri_image;
-}
-
-static const __DRIimageLookupExtension image_lookup_extension = {
-   { __DRI_IMAGE_LOOKUP, 1 },
-   dri2_lookup_egl_image
-};
-
-static __DRIbuffer *
-dri2_get_buffers_with_format(__DRIdrawable * driDrawable,
-			     int *width, int *height,
-			     unsigned int *attachments, int count,
-			     int *out_count, void *loaderPrivate)
-{
-   struct dri2_egl_surface *dri2_surf = loaderPrivate;
-   struct dri2_egl_display *dri2_dpy =
-      dri2_egl_display(dri2_surf->base.Resource.Display);
-   xcb_dri2_dri2_buffer_t *buffers;
-   xcb_dri2_get_buffers_with_format_reply_t *reply;
-   xcb_dri2_get_buffers_with_format_cookie_t cookie;
-   xcb_dri2_attach_format_t *format_attachments;
-
-   format_attachments = (xcb_dri2_attach_format_t *) attachments;
-   cookie = xcb_dri2_get_buffers_with_format_unchecked (dri2_dpy->conn,
-							dri2_surf->drawable,
-							count, count,
-							format_attachments);
-
-   reply = xcb_dri2_get_buffers_with_format_reply (dri2_dpy->conn,
-						   cookie, NULL);
-   if (reply == NULL)
-      return NULL;
-
-   buffers = xcb_dri2_get_buffers_with_format_buffers (reply);
-   dri2_surf->base.Width = *width = reply->width;
-   dri2_surf->base.Height = *height = reply->height;
-   *out_count = reply->count;
-   dri2_process_buffers(dri2_surf, buffers, *out_count);		       
-
-   free(reply);
-
-   return dri2_surf->buffers;
-}
-
-static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
-
-struct dri2_extension_match {
-   const char *name;
-   int version;
-   int offset;
-};
-
-static struct dri2_extension_match dri2_driver_extensions[] = {
-   { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
-   { __DRI_DRI2, 1, offsetof(struct dri2_egl_display, dri2) },
-   { NULL }
-};
-
-static struct dri2_extension_match dri2_core_extensions[] = {
-   { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
-   { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
-   { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
-   { NULL }
-};
-
-static EGLBoolean
-dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
-		     struct dri2_extension_match *matches,
-		     const __DRIextension **extensions)
-{
-   int i, j, ret = EGL_TRUE;
-   void *field;
-
-   for (i = 0; extensions[i]; i++) {
-      _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
-      for (j = 0; matches[j].name; j++) {
-	 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
-	     extensions[i]->version >= matches[j].version) {
-	    field = ((char *) dri2_dpy + matches[j].offset);
-	    *(const __DRIextension **) field = extensions[i];
-	    _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
-		    extensions[i]->name, extensions[i]->version);
-	 }
-      }
-   }
-   
-   for (j = 0; matches[j].name; j++) {
-      field = ((char *) dri2_dpy + matches[j].offset);
-      if (*(const __DRIextension **) field == NULL) {
-	 _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
-		 matches[j].name, matches[j].version);
-	 ret = EGL_FALSE;
-      }
-   }
-
-   return ret;
-}
-
-static char *
-dri2_strndup(const char *s, int length)
-{
-   char *d;
-
-   d = malloc(length + 1);
-   if (d == NULL)
-      return NULL;
-
-   memcpy(d, s, length);
-   d[length] = '\0';
-
-   return d;
-}
-
-static EGLBoolean
-dri2_connect(struct dri2_egl_display *dri2_dpy)
-{
-   xcb_xfixes_query_version_reply_t *xfixes_query;
-   xcb_xfixes_query_version_cookie_t xfixes_query_cookie;
-   xcb_dri2_query_version_reply_t *dri2_query;
-   xcb_dri2_query_version_cookie_t dri2_query_cookie;
-   xcb_dri2_connect_reply_t *connect;
-   xcb_dri2_connect_cookie_t connect_cookie;
-   xcb_generic_error_t *error;
-   xcb_screen_iterator_t s;
-
-   xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id);
-   xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id);
-
-   xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn,
-						  XCB_XFIXES_MAJOR_VERSION,
-						  XCB_XFIXES_MINOR_VERSION);
-   
-   dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn,
-					       XCB_DRI2_MAJOR_VERSION,
-					       XCB_DRI2_MINOR_VERSION);
-
-   s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
-   connect_cookie = xcb_dri2_connect_unchecked (dri2_dpy->conn,
-						s.data->root,
-						XCB_DRI2_DRIVER_TYPE_DRI);
-   
-   xfixes_query =
-      xcb_xfixes_query_version_reply (dri2_dpy->conn,
-				      xfixes_query_cookie, &error);
-   if (xfixes_query == NULL ||
-       error != NULL || xfixes_query->major_version < 2) {
-      _eglLog(_EGL_FATAL, "DRI2: failed to query xfixes version");
-      free(error);
-      return EGL_FALSE;
-   }
-   free(xfixes_query);
-
-   dri2_query =
-      xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error);
-   if (dri2_query == NULL || error != NULL) {
-      _eglLog(_EGL_FATAL, "DRI2: failed to query version");
-      free(error);
-      return EGL_FALSE;
-   }
-   dri2_dpy->dri2_major = dri2_query->major_version;
-   dri2_dpy->dri2_minor = dri2_query->minor_version;
-   free(dri2_query);
-
-   connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL);
-   if (connect == NULL ||
-       connect->driver_name_length + connect->device_name_length == 0) {
-      _eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
-      return EGL_FALSE;
-   }
-
-   dri2_dpy->device_name =
-      dri2_strndup(xcb_dri2_connect_device_name (connect),
-		   xcb_dri2_connect_device_name_length (connect));
-		   
-   dri2_dpy->driver_name =
-      dri2_strndup(xcb_dri2_connect_driver_name (connect),
-		   xcb_dri2_connect_driver_name_length (connect));
-
-   if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) {
-      free(dri2_dpy->device_name);
-      free(dri2_dpy->driver_name);
-      free(connect);
-      return EGL_FALSE;
-   }
-   free(connect);
-
-   return EGL_TRUE;
-}
-
-static EGLBoolean
-dri2_authenticate(struct dri2_egl_display *dri2_dpy)
-{
-   xcb_dri2_authenticate_reply_t *authenticate;
-   xcb_dri2_authenticate_cookie_t authenticate_cookie;
-   xcb_screen_iterator_t s;
-   drm_magic_t magic;
-
-   if (drmGetMagic(dri2_dpy->fd, &magic)) {
-      _eglLog(_EGL_FATAL, "DRI2: failed to get drm magic");
-      return EGL_FALSE;
-   }
-
-   s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
-   authenticate_cookie =
-      xcb_dri2_authenticate_unchecked(dri2_dpy->conn, s.data->root, magic);
-   authenticate =
-      xcb_dri2_authenticate_reply(dri2_dpy->conn, authenticate_cookie, NULL);
-   if (authenticate == NULL || !authenticate->authenticated) {
-      _eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
-      free(authenticate);
-      return EGL_FALSE;
-   }
-
-   free(authenticate);
-
-   return EGL_TRUE;
-}
-
-static EGLBoolean
-dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
-			     _EGLDisplay *disp)
-{
-   xcb_screen_iterator_t s;
-   xcb_depth_iterator_t d;
-   xcb_visualtype_t *visuals;
-   int i, j, id;
-   struct dri2_egl_config *conf;
-   EGLint surface_type;
-
-   s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
-   d = xcb_screen_allowed_depths_iterator(s.data);
-   id = 1;
-
-   surface_type =
-      EGL_WINDOW_BIT |
-      EGL_PIXMAP_BIT |
-      EGL_PBUFFER_BIT |
-      EGL_SWAP_BEHAVIOR_PRESERVED_BIT;
-
-   while (d.rem > 0) {
-      EGLBoolean class_added[6] = { 0, };
-
-      visuals = xcb_depth_visuals(d.data);
-      for (i = 0; i < xcb_depth_visuals_length(d.data); i++) {
-	 if (class_added[visuals[i]._class])
-	    continue;
-
-	 class_added[visuals[i]._class] = EGL_TRUE;
-	 for (j = 0; dri2_dpy->driver_configs[j]; j++) {
-	    conf = dri2_add_config(disp, dri2_dpy->driver_configs[j],
-				   id++, d.data->depth, surface_type);
-	    if (conf == NULL)
-	       continue;
-	    _eglSetConfigKey(&conf->base,
-			     EGL_NATIVE_VISUAL_ID, visuals[i].visual_id);
-	    _eglSetConfigKey(&conf->base,
-			     EGL_NATIVE_VISUAL_TYPE, visuals[i]._class);
-	 }
-      }
-
-      xcb_depth_next(&d);      
-   }
-
-   if (!_eglGetArraySize(disp->Configs)) {
-      _eglLog(_EGL_WARNING, "DRI2: failed to create any config");
-      return EGL_FALSE;
-   }
-
-   return EGL_TRUE;
-}
-
-static EGLBoolean
-dri2_load_driver(_EGLDisplay *disp)
-{
-   struct dri2_egl_display *dri2_dpy = disp->DriverData;
-   const __DRIextension **extensions;
-   char path[PATH_MAX], *search_paths, *p, *next, *end;
-
-   search_paths = NULL;
-   if (geteuid() == getuid()) {
-      /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
-      search_paths = getenv("LIBGL_DRIVERS_PATH");
-   }
-   if (search_paths == NULL)
-      search_paths = DEFAULT_DRIVER_DIR;
-
-   dri2_dpy->driver = NULL;
-   end = search_paths + strlen(search_paths);
-   for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
-      int len;
-      next = strchr(p, ':');
-      if (next == NULL)
-         next = end;
-
-      len = next - p;
-#if GLX_USE_TLS
-      snprintf(path, sizeof path,
-	       "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
-      dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
-#endif
-      if (dri2_dpy->driver == NULL) {
-	 snprintf(path, sizeof path,
-		  "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
-	 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
-	 if (dri2_dpy->driver == NULL)
-	    _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
-      }
-   }
-
-   if (dri2_dpy->driver == NULL) {
-      _eglLog(_EGL_WARNING,
-	      "DRI2: failed to open any driver (search paths %s)",
-	      search_paths);
-      return EGL_FALSE;
-   }
-
-   _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
-   extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
-   if (extensions == NULL) {
-      _eglLog(_EGL_WARNING,
-	      "DRI2: driver exports no extensions (%s)", dlerror());
-      dlclose(dri2_dpy->driver);
-      return EGL_FALSE;
-   }
-
-   if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
-      dlclose(dri2_dpy->driver);
-      return EGL_FALSE;
-   }
-
-   return EGL_TRUE;
-}
-
-static EGLBoolean
-dri2_create_screen(_EGLDisplay *disp)
-{
-   const __DRIextension **extensions;
-   struct dri2_egl_display *dri2_dpy;
-   unsigned int api_mask;
-
-   dri2_dpy = disp->DriverData;
-   dri2_dpy->dri_screen =
-      dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
-				      &dri2_dpy->driver_configs, disp);
-
-   if (dri2_dpy->dri_screen == NULL) {
-      _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
-      return EGL_FALSE;
-   }
-
-   extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
-   if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
-      goto cleanup_dri_screen;
-
-   if (dri2_dpy->dri2->base.version >= 2)
-      api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
-   else
-      api_mask = 1 << __DRI_API_OPENGL;
-
-   disp->ClientAPIsMask = 0;
-   if (api_mask & (1 <<__DRI_API_OPENGL))
-      disp->ClientAPIsMask |= EGL_OPENGL_BIT;
-   if (api_mask & (1 <<__DRI_API_GLES))
-      disp->ClientAPIsMask |= EGL_OPENGL_ES_BIT;
-   if (api_mask & (1 << __DRI_API_GLES2))
-      disp->ClientAPIsMask |= EGL_OPENGL_ES2_BIT;
-
-   if (dri2_dpy->dri2->base.version >= 2) {
-      disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
-      disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
-      disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
-   }
-
-   return EGL_TRUE;
-
- cleanup_dri_screen:
-   dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
-
-   return EGL_FALSE;
-}
-
-static EGLBoolean
-dri2_initialize_x11(_EGLDriver *drv, _EGLDisplay *disp,
-		    EGLint *major, EGLint *minor)
-{
-   struct dri2_egl_display *dri2_dpy;
-
-   dri2_dpy = malloc(sizeof *dri2_dpy);
-   if (!dri2_dpy)
-      return _eglError(EGL_BAD_ALLOC, "eglInitialize");
-
-   disp->DriverData = (void *) dri2_dpy;
-   if (disp->PlatformDisplay == NULL) {
-      dri2_dpy->conn = xcb_connect(0, 0);
-   } else {
-      dri2_dpy->conn = XGetXCBConnection((Display *) disp->PlatformDisplay);
-   }
-
-   if (xcb_connection_has_error(dri2_dpy->conn)) {
-      _eglLog(_EGL_WARNING, "DRI2: xcb_connect failed");
-      goto cleanup_dpy;
-   }
-
-   if (dri2_dpy->conn) {
-      if (!dri2_connect(dri2_dpy))
-	 goto cleanup_conn;
-   }
-
-   if (!dri2_load_driver(disp))
-      goto cleanup_conn;
-
-   dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
-   if (dri2_dpy->fd == -1) {
-      _eglLog(_EGL_WARNING,
-	      "DRI2: could not open %s (%s)", dri2_dpy->device_name,
-              strerror(errno));
-      goto cleanup_driver;
-   }
-
-   if (dri2_dpy->conn) {
-      if (!dri2_authenticate(dri2_dpy))
-	 goto cleanup_fd;
-   }
-
-   if (dri2_dpy->dri2_minor >= 1) {
-      dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
-      dri2_dpy->loader_extension.base.version = 3;
-      dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
-      dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
-      dri2_dpy->loader_extension.getBuffersWithFormat =
-	 dri2_get_buffers_with_format;
-   } else {
-      dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
-      dri2_dpy->loader_extension.base.version = 2;
-      dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
-      dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
-      dri2_dpy->loader_extension.getBuffersWithFormat = NULL;
-   }
-      
-   dri2_dpy->extensions[0] = &dri2_dpy->loader_extension.base;
-   dri2_dpy->extensions[1] = &image_lookup_extension.base;
-   dri2_dpy->extensions[2] = NULL;
-
-   if (!dri2_create_screen(disp))
-      goto cleanup_fd;
-
-   if (dri2_dpy->conn) {
-      if (!dri2_add_configs_for_visuals(dri2_dpy, disp))
-	 goto cleanup_configs;
-   }
-
-   disp->Extensions.MESA_drm_image = EGL_TRUE;
-   disp->Extensions.KHR_image_base = EGL_TRUE;
-   disp->Extensions.KHR_image_pixmap = EGL_TRUE;
-   disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
-   disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
-   disp->Extensions.NOK_swap_region = EGL_TRUE;
-   disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE;
-
-   /* we're supporting EGL 1.4 */
-   *major = 1;
-   *minor = 4;
-
-   return EGL_TRUE;
-
- cleanup_configs:
-   _eglCleanupDisplay(disp);
-   dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
- cleanup_fd:
-   close(dri2_dpy->fd);
- cleanup_driver:
-   dlclose(dri2_dpy->driver);
- cleanup_conn:
-   if (disp->PlatformDisplay == NULL)
-      xcb_disconnect(dri2_dpy->conn);
- cleanup_dpy:
-   free(dri2_dpy);
-
-   return EGL_FALSE;
-}
-
-#ifdef HAVE_LIBUDEV
-
-struct dri2_driver_map {
-   int vendor_id;
-   const char *driver;
-   const int *chip_ids;
-   int num_chips_ids;
-};
-
-const int i915_chip_ids[] = {
-   0x3577, /* PCI_CHIP_I830_M */
-   0x2562, /* PCI_CHIP_845_G */
-   0x3582, /* PCI_CHIP_I855_GM */
-   0x2572, /* PCI_CHIP_I865_G */
-   0x2582, /* PCI_CHIP_I915_G */
-   0x258a, /* PCI_CHIP_E7221_G */
-   0x2592, /* PCI_CHIP_I915_GM */
-   0x2772, /* PCI_CHIP_I945_G */
-   0x27a2, /* PCI_CHIP_I945_GM */
-   0x27ae, /* PCI_CHIP_I945_GME */
-   0x29b2, /* PCI_CHIP_Q35_G */
-   0x29c2, /* PCI_CHIP_G33_G */
-   0x29d2, /* PCI_CHIP_Q33_G */
-   0xa001, /* PCI_CHIP_IGD_G */
-   0xa011, /* Pineview */
-};
-
-const int i965_chip_ids[] = {
-   0x0042, /* PCI_CHIP_ILD_G */
-   0x0046, /* PCI_CHIP_ILM_G */
-   0x0102, /* PCI_CHIP_SANDYBRIDGE_GT1 */
-   0x0106, /* PCI_CHIP_SANDYBRIDGE_M_GT1 */
-   0x010a, /* PCI_CHIP_SANDYBRIDGE_S */
-   0x0112, /* PCI_CHIP_SANDYBRIDGE_GT2 */
-   0x0116, /* PCI_CHIP_SANDYBRIDGE_M_GT2 */
-   0x0122, /* PCI_CHIP_SANDYBRIDGE_GT2_PLUS */
-   0x0126, /* PCI_CHIP_SANDYBRIDGE_M_GT2_PLUS */
-   0x29a2, /* PCI_CHIP_I965_G */
-   0x2992, /* PCI_CHIP_I965_Q */
-   0x2982, /* PCI_CHIP_I965_G_1 */
-   0x2972, /* PCI_CHIP_I946_GZ */
-   0x2a02, /* PCI_CHIP_I965_GM */
-   0x2a12, /* PCI_CHIP_I965_GME */
-   0x2a42, /* PCI_CHIP_GM45_GM */
-   0x2e02, /* PCI_CHIP_IGD_E_G */
-   0x2e12, /* PCI_CHIP_Q45_G */
-   0x2e22, /* PCI_CHIP_G45_G */
-   0x2e32, /* PCI_CHIP_G41_G */
-   0x2e42, /* PCI_CHIP_B43_G */
-   0x2e92, /* PCI_CHIP_B43_G1 */
-};
-
-const struct dri2_driver_map driver_map[] = {
-   { 0x8086, "i915", i915_chip_ids, ARRAY_SIZE(i915_chip_ids) },
-   { 0x8086, "i965", i965_chip_ids, ARRAY_SIZE(i965_chip_ids) },
-};
-
-static char *
-dri2_get_driver_for_fd(int fd)
-{
-   struct udev *udev;
-   struct udev_device *device, *parent;
-   struct stat buf;
-   const char *pci_id;
-   char *driver = NULL;
-   int vendor_id, chip_id, i, j;
-
-   udev = udev_new();
-   if (fstat(fd, &buf) < 0) {
-      _eglLog(_EGL_WARNING, "EGL-DRI2: failed to stat fd %d", fd);
-      goto out;
-   }
-
-   device = udev_device_new_from_devnum(udev, 'c', buf.st_rdev);
-   if (device == NULL) {
-      _eglLog(_EGL_WARNING,
-	      "EGL-DRI2: could not create udev device for fd %d", fd);
-      goto out;
-   }
-
-   parent = udev_device_get_parent(device);
-   if (parent == NULL) {
-      _eglLog(_EGL_WARNING, "DRI2: could not get parent device");
-      goto out;
-   }
-
-   pci_id = udev_device_get_property_value(parent, "PCI_ID");
-   if (pci_id == NULL || sscanf(pci_id, "%x:%x", &vendor_id, &chip_id) != 2) {
-      _eglLog(_EGL_WARNING, "EGL-DRI2: malformed or no PCI ID");
-      goto out;
-   }
-
-   for (i = 0; i < ARRAY_SIZE(driver_map); i++) {
-      if (vendor_id != driver_map[i].vendor_id)
-	 continue;
-      for (j = 0; j < driver_map[i].num_chips_ids; j++)
-	 if (driver_map[i].chip_ids[j] == chip_id) {
-	    driver = strdup(driver_map[i].driver);
-	    _eglLog(_EGL_DEBUG, "pci id for %d: %04x:%04x, driver %s",
-		    fd, vendor_id, chip_id, driver);
-	    goto out;
-	 }
-   }
-
- out:
-   udev_device_unref(device);
-   udev_unref(udev);
-
-   return driver;
-}
-
-static EGLBoolean
-dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp,
-		    EGLint *major, EGLint *minor)
-{
-   struct dri2_egl_display *dri2_dpy;
-   int i;
-
-   dri2_dpy = malloc(sizeof *dri2_dpy);
-   if (!dri2_dpy)
-      return _eglError(EGL_BAD_ALLOC, "eglInitialize");
-
-   disp->DriverData = (void *) dri2_dpy;
-   dri2_dpy->fd = (int) disp->PlatformDisplay;
-
-   dri2_dpy->driver_name = dri2_get_driver_for_fd(dri2_dpy->fd);
-   if (dri2_dpy->driver_name == NULL)
-      return _eglError(EGL_BAD_ALLOC, "DRI2: failed to get driver name");
-
-   if (!dri2_load_driver(disp))
-      goto cleanup_driver_name;
-
-   dri2_dpy->extensions[0] = &image_lookup_extension.base;
-   dri2_dpy->extensions[1] = &use_invalidate.base;
-   dri2_dpy->extensions[2] = NULL;
-
-   if (!dri2_create_screen(disp))
-      goto cleanup_driver;
-
-   for (i = 0; dri2_dpy->driver_configs[i]; i++)
-      dri2_add_config(disp, dri2_dpy->driver_configs[i], i + 1, 0, 0);
-
-   disp->Extensions.MESA_drm_image = EGL_TRUE;
-   disp->Extensions.KHR_image_base = EGL_TRUE;
-   disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
-   disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
-
-   /* we're supporting EGL 1.4 */
-   *major = 1;
-   *minor = 4;
-
-   return EGL_TRUE;
+      _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
+      return NULL;
+   }
 
- cleanup_driver:
-   dlclose(dri2_dpy->driver);
- cleanup_driver_name:
-   free(dri2_dpy->driver_name);
+   conf = malloc(sizeof *conf);
+   if (conf != NULL) {
+      memcpy(&conf->base, &base, sizeof base);
+      conf->dri_config = dri_config;
+      _eglAddConfig(disp, &conf->base);
+   }
 
-   return EGL_FALSE;
+   return conf;
 }
 
-#endif
-
 /**
  * Called via eglInitialize(), GLX_drv->API.Initialize().
  */
 static EGLBoolean
 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp,
-		EGLint *major, EGLint *minor)
+                EGLint *major, EGLint *minor)
 {
    switch (disp->Platform) {
    case _EGL_PLATFORM_X11:
@@ -1050,34 +312,11 @@ dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp,
 }
 
 /**
- * Called via eglTerminate(), drv->API.Terminate().
- */
-static EGLBoolean
-dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
-{
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-
-   _eglReleaseDisplayResources(drv, disp);
-   _eglCleanupDisplay(disp);
-
-   dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
-   close(dri2_dpy->fd);
-   dlclose(dri2_dpy->driver);
-   if (disp->PlatformDisplay == NULL)
-      xcb_disconnect(dri2_dpy->conn);
-   free(dri2_dpy);
-   disp->DriverData = NULL;
-
-   return EGL_TRUE;
-}
-
-
-/**
  * Called via eglCreateContext(), drv->API.CreateContext().
  */
 static _EGLContext *
 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
-		    _EGLContext *share_list, const EGLint *attrib_list)
+                    _EGLContext *share_list, const EGLint *attrib_list)
 {
    struct dri2_egl_context *dri2_ctx;
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
@@ -1105,8 +344,8 @@ dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
          api = __DRI_API_GLES2;
          break;
       default:
-	 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
-	 return NULL;
+         _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
+         return NULL;
       }
       break;
    case EGL_OPENGL_API:
@@ -1122,21 +361,45 @@ dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
    else
       dri_config = NULL;
 
-   if (dri2_dpy->dri2->base.version >= 2) {
-      dri2_ctx->dri_context =
-	 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
-						api,
-						dri_config,
-						dri2_ctx_shared ? 
-						dri2_ctx_shared->dri_context : NULL,
-						dri2_ctx);
-   } else if (api == __DRI_API_OPENGL) {
-      dri2_ctx->dri_context =
-	 dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
-					  dri2_config->dri_config,
-					  dri2_ctx_shared ? 
-					  dri2_ctx_shared->dri_context : NULL,
-					  dri2_ctx);
+   if (dri2_dpy->dri2) {
+      if (dri2_dpy->dri2->base.version >= 2) {
+         dri2_ctx->dri_context =
+            dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
+                                                   api,
+                                                   dri_config,
+                                                   dri2_ctx_shared ? 
+                                                   dri2_ctx_shared->dri_context : NULL,
+                                                   dri2_ctx);
+
+      } else if (api == __DRI_API_OPENGL) {
+         dri2_ctx->dri_context =
+            dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
+                                             dri_config,
+                                             dri2_ctx_shared ? 
+                                             dri2_ctx_shared->dri_context : NULL,
+                                             dri2_ctx);
+      } else {
+         /* fail */
+      }
+   } else if (dri2_dpy->swrast) {
+      if (dri2_dpy->swrast->base.version >= 2) {
+         dri2_ctx->dri_context =
+            dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
+                                                     api,
+                                                     dri_config,
+                                                     dri2_ctx_shared ? 
+                                                     dri2_ctx_shared->dri_context : NULL,
+                                                     dri2_ctx);
+      } else if (api == __DRI_API_OPENGL) {
+         dri2_ctx->dri_context =
+            dri2_dpy->core->createNewContext(dri2_dpy->dri_screen,
+                                             dri_config,
+                                             dri2_ctx_shared ? 
+                                             dri2_ctx_shared->dri_context : NULL,
+                                             dri2_ctx);
+      } else {
+         /* fail */
+      }
    } else {
       /* fail */
    }
@@ -1151,33 +414,43 @@ dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
    return NULL;
 }
 
+#if 0
 static EGLBoolean
 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
 {
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 
+   _eglLog(_EGL_WARNING, "Destroy 1");
+
    if (_eglIsSurfaceBound(surf))
       return EGL_TRUE;
 
    (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
-   
-   xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable);
+
+   dri2_dpy->destroyDrawable(dri2_dpy, dri2_surf);
+#if 0
+   if (dri2_dpy->x11_dri2_accel) {   
+      xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable);
+   } else {
+      swrastDestroySurface(dri2_surf, dri2_dpy);
+   }
 
    if (surf->Type == EGL_PBUFFER_BIT)
       xcb_free_pixmap (dri2_dpy->conn, dri2_surf->drawable);
 
    free(surf);
-
+#endif
    return EGL_TRUE;
 }
+#endif
 
 /**
  * Called via eglMakeCurrent(), drv->API.MakeCurrent().
  */
 static EGLBoolean
 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
-		  _EGLSurface *rsurf, _EGLContext *ctx)
+                  _EGLSurface *rsurf, _EGLContext *ctx)
 {
    struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
@@ -1202,11 +475,13 @@ dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
    if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
        dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
       if (dsurf && !_eglIsSurfaceLinked(dsurf))
-	 dri2_destroy_surface(drv, disp, dsurf);
+         if (dri2_drv->base.API.DestroySurface)
+            dri2_drv->base.API.DestroySurface(drv, disp, dsurf);
       if (rsurf && rsurf != dsurf && !_eglIsSurfaceLinked(dsurf))
-	 dri2_destroy_surface(drv, disp, rsurf);
+         if (dri2_drv->base.API.DestroySurface)
+            dri2_drv->base.API.DestroySurface(drv, disp, rsurf);
       if (ctx != NULL && !_eglIsContextLinked(ctx))
-	 dri2_dpy->core->unbindContext(dri2_egl_context(ctx)->dri_context);
+         dri2_dpy->core->unbindContext(dri2_egl_context(ctx)->dri_context);
 
       return EGL_TRUE;
    } else {
@@ -1216,189 +491,6 @@ dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
    }
 }
 
-/**
- * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
- */
-static _EGLSurface *
-dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
-		    _EGLConfig *conf, EGLNativeWindowType window,
-		    const EGLint *attrib_list)
-{
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
-   struct dri2_egl_surface *dri2_surf;
-   xcb_get_geometry_cookie_t cookie;
-   xcb_get_geometry_reply_t *reply;
-   xcb_screen_iterator_t s;
-   xcb_generic_error_t *error;
-
-   dri2_surf = malloc(sizeof *dri2_surf);
-   if (!dri2_surf) {
-      _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
-      return NULL;
-   }
-   
-   if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
-      goto cleanup_surf;
-
-   dri2_surf->region = XCB_NONE;
-   if (type == EGL_PBUFFER_BIT) {
-      dri2_surf->drawable = xcb_generate_id(dri2_dpy->conn);
-      s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
-      xcb_create_pixmap(dri2_dpy->conn,
-			_eglGetConfigKey(conf, EGL_BUFFER_SIZE),
-			dri2_surf->drawable, s.data->root,
-			dri2_surf->base.Width, dri2_surf->base.Height);
-   } else {
-      dri2_surf->drawable = window;
-   }
-
-   dri2_surf->dri_drawable = 
-      (*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen,
-					    dri2_conf->dri_config, dri2_surf);
-   if (dri2_surf->dri_drawable == NULL) {
-      _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
-      goto cleanup_pixmap;
-   }
-
-   xcb_dri2_create_drawable (dri2_dpy->conn, dri2_surf->drawable);
-
-   if (type != EGL_PBUFFER_BIT) {
-      cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable);
-      reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error);
-      if (reply == NULL || error != NULL) {
-	 _eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
-	 free(error);
-	 goto cleanup_dri_drawable;
-      }
-
-      dri2_surf->base.Width = reply->width;
-      dri2_surf->base.Height = reply->height;
-      free(reply);
-   }
-
-   return &dri2_surf->base;
-
- cleanup_dri_drawable:
-   dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
- cleanup_pixmap:
-   if (type == EGL_PBUFFER_BIT)
-      xcb_free_pixmap(dri2_dpy->conn, dri2_surf->drawable);
- cleanup_surf:
-   free(dri2_surf);
-
-   return NULL;
-}
-
-/**
- * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
- */
-static _EGLSurface *
-dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
-			   _EGLConfig *conf, EGLNativeWindowType window,
-			   const EGLint *attrib_list)
-{
-   return dri2_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
-			      window, attrib_list);
-}
-
-static _EGLSurface *
-dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
-			   _EGLConfig *conf, EGLNativePixmapType pixmap,
-			   const EGLint *attrib_list)
-{
-   return dri2_create_surface(drv, disp, EGL_PIXMAP_BIT, conf,
-			      pixmap, attrib_list);
-}
-
-static _EGLSurface *
-dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
-			    _EGLConfig *conf, const EGLint *attrib_list)
-{
-   return dri2_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
-			      XCB_WINDOW_NONE, attrib_list);
-}
-
-static EGLBoolean
-dri2_copy_region(_EGLDriver *drv, _EGLDisplay *disp,
-		 _EGLSurface *draw, xcb_xfixes_region_t region)
-{
-   struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
-   _EGLContext *ctx;
-   xcb_dri2_copy_region_cookie_t cookie;
-
-   if (dri2_drv->glFlush) {
-      ctx = _eglGetCurrentContext();
-      if (ctx && ctx->DrawSurface == &dri2_surf->base)
-         dri2_drv->glFlush();
-   }
-
-   (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
-
-#if 0
-   /* FIXME: Add support for dri swapbuffers, that'll give us swap
-    * interval and page flipping (at least for fullscreen windows) as
-    * well as the page flip event.  Unless surface->SwapBehavior is
-    * EGL_BUFFER_PRESERVED. */
-#if __DRI2_FLUSH_VERSION >= 2
-   if (pdraw->psc->f)
-      (*pdraw->psc->f->flushInvalidate)(pdraw->driDrawable);
-#endif
-#endif
-
-   if (!dri2_surf->have_fake_front)
-      return EGL_TRUE;
-
-   cookie = xcb_dri2_copy_region_unchecked(dri2_dpy->conn,
-					   dri2_surf->drawable,
-					   region,
-					   XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT,
-					   XCB_DRI2_ATTACHMENT_BUFFER_FAKE_FRONT_LEFT);
-   free(xcb_dri2_copy_region_reply(dri2_dpy->conn, cookie, NULL));
-
-   return EGL_TRUE;
-}
-
-static EGLBoolean
-dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
-{
-   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
-
-   return dri2_copy_region(drv, disp, draw, dri2_surf->region);
-}
-
-static EGLBoolean
-dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw,
-			 EGLint numRects, const EGLint *rects)
-{
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
-   EGLBoolean ret;
-   xcb_xfixes_region_t region;
-   xcb_rectangle_t rectangles[16];
-   int i;
-
-   if (numRects > ARRAY_SIZE(rectangles))
-      return dri2_copy_region(drv, disp, draw, dri2_surf->region);
-
-   /* FIXME: Invert y here? */
-   for (i = 0; i < numRects; i++) {
-      rectangles[i].x = rects[i * 4];
-      rectangles[i].y = rects[i * 4 + 1];
-      rectangles[i].width = rects[i * 4 + 2];
-      rectangles[i].height = rects[i * 4 + 3];
-   }
-
-   region = xcb_generate_id(dri2_dpy->conn);
-   xcb_xfixes_create_region(dri2_dpy->conn, region, numRects, rectangles);
-   ret = dri2_copy_region(drv, disp, draw, region);
-   xcb_xfixes_destroy_region(dri2_dpy->conn, region);
-
-   return ret;
-}
-
 /*
  * Called from eglGetProcAddress() via drv->API.GetProcAddress().
  */
@@ -1418,8 +510,9 @@ dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
 
    /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
     * we need to copy fake to real here.*/
-
-   (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
+   if (dri2_dpy->flush) {
+     (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
+   }
 
    return EGL_TRUE;
 }
@@ -1427,48 +520,17 @@ dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
 static EGLBoolean
 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
 {
-   if (engine != EGL_CORE_NATIVE_ENGINE)
+   if (engine != EGL_CORE_NATIVE_ENGINE) {
       return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
-   /* glXWaitX(); */
-
-   return EGL_TRUE;
-}
-
-static void
-dri2_unload(_EGLDriver *drv)
-{
-   struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
-   free(dri2_drv);
-}
-
-static EGLBoolean
-dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
-		  EGLNativePixmapType target)
-{
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
-   xcb_gcontext_t gc;
-
-   (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
-
-   gc = xcb_generate_id(dri2_dpy->conn);
-   xcb_create_gc(dri2_dpy->conn, gc, target, 0, NULL);
-   xcb_copy_area(dri2_dpy->conn,
-		  dri2_surf->drawable,
-		  target,
-		  gc,
-		  0, 0,
-		  0, 0,
-		  dri2_surf->base.Width,
-		  dri2_surf->base.Height);
-   xcb_free_gc(dri2_dpy->conn, gc);
+      /* glXWaitX(); */
+   }   
 
    return EGL_TRUE;
 }
 
 static EGLBoolean
 dri2_bind_tex_image(_EGLDriver *drv,
-		    _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
+                    _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
 {
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
@@ -1502,387 +564,34 @@ dri2_bind_tex_image(_EGLDriver *drv,
    }
 
    (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
-					  target, format,
-					  dri2_surf->dri_drawable);
+                                          target, format,
+                                          dri2_surf->dri_drawable);
 
    return EGL_TRUE;
 }
 
 static EGLBoolean
 dri2_release_tex_image(_EGLDriver *drv,
-		       _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
-{
-   return EGL_TRUE;
-}
-
-static _EGLImage *
-dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx,
-			     EGLClientBuffer buffer, const EGLint *attr_list)
-{
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   struct dri2_egl_image *dri2_img;
-   unsigned int attachments[1];
-   xcb_drawable_t drawable;
-   xcb_dri2_get_buffers_cookie_t buffers_cookie;
-   xcb_dri2_get_buffers_reply_t *buffers_reply;
-   xcb_dri2_dri2_buffer_t *buffers;
-   xcb_get_geometry_cookie_t geometry_cookie;
-   xcb_get_geometry_reply_t *geometry_reply;
-   xcb_generic_error_t *error;
-   int stride, format;
-
-   drawable = (xcb_drawable_t) buffer;
-   xcb_dri2_create_drawable (dri2_dpy->conn, drawable);
-   attachments[0] = XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT;
-   buffers_cookie =
-      xcb_dri2_get_buffers_unchecked (dri2_dpy->conn,
-				      drawable, 1, 1, attachments);
-   geometry_cookie = xcb_get_geometry (dri2_dpy->conn, drawable);
-   buffers_reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn,
-					       buffers_cookie, NULL);
-   buffers = xcb_dri2_get_buffers_buffers (buffers_reply);
-   if (buffers == NULL) {
-      return NULL;
-   }
-
-   geometry_reply = xcb_get_geometry_reply (dri2_dpy->conn,
-					    geometry_cookie, &error);
-   if (geometry_reply == NULL || error != NULL) {
-      _eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
-      free(error);
-      free(buffers_reply);
-   }
-
-   switch (geometry_reply->depth) {
-   case 16:
-      format = __DRI_IMAGE_FORMAT_RGB565;
-      break;
-   case 24:
-      format = __DRI_IMAGE_FORMAT_XRGB8888;
-      break;
-   case 32:
-      format = __DRI_IMAGE_FORMAT_ARGB8888;
-      break;
-   default:
-      _eglError(EGL_BAD_PARAMETER,
-		"dri2_create_image_khr: unsupported pixmap depth");
-      free(buffers_reply);
-      free(geometry_reply);
-      return NULL;
-   }
-
-   dri2_img = malloc(sizeof *dri2_img);
-   if (!dri2_img) {
-      free(buffers_reply);
-      free(geometry_reply);
-      _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
-      return EGL_NO_IMAGE_KHR;
-   }
-
-   if (!_eglInitImage(&dri2_img->base, disp, attr_list)) {
-      free(buffers_reply);
-      free(geometry_reply);
-      return EGL_NO_IMAGE_KHR;
-   }
-
-   stride = buffers[0].pitch / buffers[0].cpp;
-   dri2_img->dri_image =
-      dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
-					   buffers_reply->width,
-					   buffers_reply->height,
-					   format,
-					   buffers[0].name,
-					   stride,
-					   dri2_img);
-
-   free(buffers_reply);
-   free(geometry_reply);
-
-   return &dri2_img->base;
-}
-
-static _EGLImage *
-dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
-				   EGLClientBuffer buffer,
-				   const EGLint *attr_list)
-{
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
-   struct dri2_egl_image *dri2_img;
-   GLuint renderbuffer = (GLuint) buffer;
-
-   if (renderbuffer == 0) {
-      _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
-      return EGL_NO_IMAGE_KHR;
-   }
-
-   dri2_img = malloc(sizeof *dri2_img);
-   if (!dri2_img) {
-      _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
-      return EGL_NO_IMAGE_KHR;
-   }
-
-   if (!_eglInitImage(&dri2_img->base, disp, attr_list))
-      return EGL_NO_IMAGE_KHR;
-
-   dri2_img->dri_image = 
-      dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
-						   renderbuffer,
-						   dri2_img);
-
-   return &dri2_img->base;
-}
-
-static _EGLImage *
-dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
-				  EGLClientBuffer buffer, const EGLint *attr_list)
-{
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   struct dri2_egl_image *dri2_img;
-   EGLint width, height, format, name, stride, pitch, i, err;
-
-   name = (EGLint) buffer;
-
-   err = EGL_SUCCESS;
-   width = 0;
-   height = 0;
-   format = 0;
-   stride = 0;
-
-   for (i = 0; attr_list[i] != EGL_NONE; i++) {
-      EGLint attr = attr_list[i++];
-      EGLint val = attr_list[i];
-
-      switch (attr) {
-      case EGL_WIDTH:
-	 width = val;
-         break;
-      case EGL_HEIGHT:
-	 height = val;
-         break;
-      case EGL_DRM_BUFFER_FORMAT_MESA:
-	 format = val;
-         break;
-      case EGL_DRM_BUFFER_STRIDE_MESA:
-	 stride = val;
-         break;
-      default:
-         err = EGL_BAD_ATTRIBUTE;
-         break;
-      }
-
-      if (err != EGL_SUCCESS) {
-         _eglLog(_EGL_WARNING, "bad image attribute 0x%04x", attr);
-	 return NULL;
-      }
-   }
-
-   if (width <= 0 || height <= 0 || stride <= 0) {
-      _eglError(EGL_BAD_PARAMETER,
-		"bad width, height or stride");
-      return NULL;
-   }
-
-   switch (format) {
-   case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
-      format = __DRI_IMAGE_FORMAT_ARGB8888;
-      pitch = stride;
-      break;
-   default:
-      _eglError(EGL_BAD_PARAMETER,
-		"dri2_create_image_khr: unsupported pixmap depth");
-      return NULL;
-   }
-
-   dri2_img = malloc(sizeof *dri2_img);
-   if (!dri2_img) {
-      _eglError(EGL_BAD_ALLOC, "dri2_create_image_mesa_drm");
-      return NULL;
-   }
-
-   if (!_eglInitImage(&dri2_img->base, disp, attr_list)) {
-      free(dri2_img);
-      return NULL;
-   }
-
-   dri2_img->dri_image =
-      dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
-					   width,
-					   height,
-					   format,
-					   name,
-					   pitch,
-					   dri2_img);
-   if (dri2_img->dri_image == NULL) {
-      free(dri2_img);
-      _eglError(EGL_BAD_ALLOC, "dri2_create_image_mesa_drm");
-      return NULL;
-   }
-
-   return &dri2_img->base;
-}
-
-static _EGLImage *
-dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
-		      _EGLContext *ctx, EGLenum target,
-		      EGLClientBuffer buffer, const EGLint *attr_list)
-{
-   switch (target) {
-   case EGL_NATIVE_PIXMAP_KHR:
-      return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list);
-   case EGL_GL_RENDERBUFFER_KHR:
-      return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
-   case EGL_DRM_BUFFER_MESA:
-      return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
-   default:
-      _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
-      return EGL_NO_IMAGE_KHR;
-   }
-}
-
-static EGLBoolean
-dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
+                       _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
 {
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   struct dri2_egl_image *dri2_img = dri2_egl_image(image);
-
-   dri2_dpy->image->destroyImage(dri2_img->dri_image);
-   free(dri2_img);
-
    return EGL_TRUE;
 }
 
-static _EGLImage *
-dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
-			   const EGLint *attr_list)
-{
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   struct dri2_egl_image *dri2_img;
-   int width, height, format, i;
-   unsigned int use, dri_use, valid_mask;
-   EGLint err = EGL_SUCCESS;
-
-   dri2_img = malloc(sizeof *dri2_img);
-   if (!dri2_img) {
-      _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
-      return EGL_NO_IMAGE_KHR;
-   }
-
-   if (!attr_list) {
-      err = EGL_BAD_PARAMETER;
-      goto cleanup_img;
-   }
-
-   if (!_eglInitImage(&dri2_img->base, disp, attr_list)) {
-      err = EGL_BAD_PARAMETER;
-      goto cleanup_img;
-   }
-
-   width = 0;
-   height = 0;
-   format = 0;
-   use = 0;
-   for (i = 0; attr_list[i] != EGL_NONE; i++) {
-      EGLint attr = attr_list[i++];
-      EGLint val = attr_list[i];
-
-      switch (attr) {
-      case EGL_WIDTH:
-	 width = val;
-         break;
-      case EGL_HEIGHT:
-	 height = val;
-         break;
-      case EGL_DRM_BUFFER_FORMAT_MESA:
-	 format = val;
-         break;
-      case EGL_DRM_BUFFER_USE_MESA:
-	 use = val;
-         break;
-      default:
-         err = EGL_BAD_ATTRIBUTE;
-         break;
-      }
-
-      if (err != EGL_SUCCESS) {
-         _eglLog(_EGL_WARNING, "bad image attribute 0x%04x", attr);
-	 goto cleanup_img;
-      }
-   }
-
-   if (width <= 0 || height <= 0) {
-      _eglLog(_EGL_WARNING, "bad width or height (%dx%d)", width, height);
-      goto cleanup_img;
-   }
-
-   switch (format) {
-   case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
-      format = __DRI_IMAGE_FORMAT_ARGB8888;
-      break;
-   default:
-      _eglLog(_EGL_WARNING, "bad image format value 0x%04x", format);
-      goto cleanup_img;
-   }
-
-   valid_mask =
-      EGL_DRM_BUFFER_USE_SCANOUT_MESA |
-      EGL_DRM_BUFFER_USE_SHARE_MESA; 
-   if (use & ~valid_mask) {
-      _eglLog(_EGL_WARNING, "bad image use bit 0x%04x", use & ~valid_mask);
-      goto cleanup_img;
-   }
-
-   dri_use = 0;
-   if (use & EGL_DRM_BUFFER_USE_SHARE_MESA)
-      dri_use |= __DRI_IMAGE_USE_SHARE;
-   if (use & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
-      dri_use |= __DRI_IMAGE_USE_SCANOUT;
-
-   dri2_img->dri_image = 
-      dri2_dpy->image->createImage(dri2_dpy->dri_screen,
-				   width, height, format, dri_use, dri2_img);
-   if (dri2_img->dri_image == NULL) {
-      err = EGL_BAD_ALLOC;
-      goto cleanup_img;
-   }
-
-   return &dri2_img->base;
-
- cleanup_img:
-   free(dri2_img);
-   _eglError(err, "dri2_create_drm_image_mesa");
-
-   return EGL_NO_IMAGE_KHR;
-}
-
-static EGLBoolean
-dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
-			  EGLint *name, EGLint *handle, EGLint *stride)
+static void
+dri2_unload(_EGLDriver *drv)
 {
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   struct dri2_egl_image *dri2_img = dri2_egl_image(img);
-
-   if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
-					    __DRI_IMAGE_ATTRIB_NAME, name)) {
-      _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
-      return EGL_FALSE;
-   }
-
-   if (handle)
-      dri2_dpy->image->queryImage(dri2_img->dri_image,
-				  __DRI_IMAGE_ATTRIB_HANDLE, handle);
-
-   if (stride)
-      dri2_dpy->image->queryImage(dri2_img->dri_image,
-				  __DRI_IMAGE_ATTRIB_STRIDE, stride);
-
-   return EGL_TRUE;
+   struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
+   free(dri2_drv);
 }
 
 /**
  * This is the main entrypoint into the driver, called by libEGL.
- * Create a new _EGLDriver object and init its dispatch table.
+ * Create a new _EGLDriver object and init the common part of its 
+ * dispatch table. The other parts of dispatch table initialization 
+ * is deferred to dri2_initialize as drm, x11_dri2 and x11_swrast 
+ * have different dispatch table assignment.
  */
+
 _EGLDriver *
 _eglMain(const char *args)
 {
@@ -1894,32 +603,23 @@ _eglMain(const char *args)
 
    memset(dri2_drv, 0, sizeof *dri2_drv);
    _eglInitDriverFallbacks(&dri2_drv->base);
+
+   // common initialization between drm, x11_dri2 and x11_swrast
    dri2_drv->base.API.Initialize = dri2_initialize;
-   dri2_drv->base.API.Terminate = dri2_terminate;
    dri2_drv->base.API.CreateContext = dri2_create_context;
    dri2_drv->base.API.MakeCurrent = dri2_make_current;
-   dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
-   dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
-   dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
-   dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
-   dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
    dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
    dri2_drv->base.API.WaitClient = dri2_wait_client;
    dri2_drv->base.API.WaitNative = dri2_wait_native;
-   dri2_drv->base.API.CopyBuffers = dri2_copy_buffers;
    dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
    dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
-   dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
-   dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
-   dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
-   dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
-   dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
+   dri2_drv->base.Unload = dri2_unload;
 
    dri2_drv->base.Name = "DRI2";
-   dri2_drv->base.Unload = dri2_unload;
 
    dri2_drv->glFlush =
       (void (*)(void)) dri2_get_proc_address(&dri2_drv->base, "glFlush");
 
    return &dri2_drv->base;
 }
+
diff --git a/src/egl/drivers/dri2/egl_dri2.h b/src/egl/drivers/dri2/egl_dri2.h
new file mode 100644
index 0000000..206aafc
--- /dev/null
+++ b/src/egl/drivers/dri2/egl_dri2.h
@@ -0,0 +1,148 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS 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:
+ *    Kristian Høgsberg <krh at bitplanet.net>
+ */
+
+#ifndef EGL_DRI2_INCLUDED
+#define EGL_DRI2_INCLUDED
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <limits.h>
+#include <dlfcn.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <GL/gl.h>
+#include <GL/internal/dri_interface.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <glapi/glapi.h>
+#include "eglconfig.h"
+#include "eglcontext.h"
+#include "egldisplay.h"
+#include "egldriver.h"
+#include "eglcurrent.h"
+#include "egllog.h"
+#include "eglsurface.h"
+#include "eglimage.h"
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+
+struct dri2_egl_driver
+{
+   _EGLDriver base;
+
+   void (*glFlush)(void);
+};
+
+struct dri2_egl_display
+{
+   __DRIscreen              *dri_screen;
+   const __DRIconfig       **driver_configs;
+   void                     *driver;
+   __DRIcoreExtension       *core;
+   __DRIdri2Extension       *dri2;
+   __DRIswrastExtension     *swrast;
+   __DRI2flushExtension     *flush;
+   __DRItexBufferExtension  *tex_buffer;
+   __DRIimageExtension      *image;
+
+   char                     *driver_name;
+   int                       fd;
+
+   __DRIdri2LoaderExtension    dri2_loader_extension;
+   __DRIswrastLoaderExtension  swrast_loader_extension;
+   const __DRIextension     *extensions[3];
+};
+
+struct dri2_egl_context
+{
+   _EGLContext   base;
+   __DRIcontext *dri_context;
+};
+
+struct dri2_egl_surface
+{
+   _EGLSurface          base;
+   __DRIdrawable       *dri_drawable;
+};
+
+struct dri2_egl_config
+{
+   _EGLConfig         base;
+   const __DRIconfig *dri_config;
+};
+
+struct dri2_egl_image
+{
+   _EGLImage   base;
+   __DRIimage *dri_image;
+};
+
+struct dri2_extension_match {
+   const char *name;
+   int version;
+   int offset;
+};
+
+/* standard typecasts */
+_EGL_DRIVER_STANDARD_TYPECASTS(dri2_egl)
+_EGL_DRIVER_TYPECAST(dri2_egl_image, _EGLImage, obj)
+
+char *
+dri2_strndup(const char *s, int length);
+
+const __DRIextension ** 
+dri2_load_driver(_EGLDisplay *disp);
+
+EGLBoolean 
+dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
+                     struct dri2_extension_match *matches,
+                     const __DRIextension **extensions);
+
+struct dri2_egl_config * 
+dri2_add_config(_EGLDisplay *disp, 
+                const __DRIconfig *dri_config, int id,
+                int depth, EGLint surface_type, int accel);
+
+EGLBoolean 
+dri2_initialize_x11(_EGLDriver *drv,
+                    _EGLDisplay *disp,
+                    EGLint *major, 
+                    EGLint *minor);
+
+#ifdef HAVE_LIBUDEV
+EGLBoolean 
+dri2_initialize_drm(_EGLDriver *drv, 
+                    _EGLDisplay *disp,
+                    EGLint *major, 
+                    EGLint *minor);
+#endif
+
+#endif
+
diff --git a/src/egl/drivers/dri2/x11_dri2.c b/src/egl/drivers/dri2/x11_dri2.c
new file mode 100644
index 0000000..fba457c
--- /dev/null
+++ b/src/egl/drivers/dri2/x11_dri2.c
@@ -0,0 +1,745 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS 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:
+ *    Kristian Høgsberg <krh at bitplanet.net>
+ */
+
+#include "x11_shared.h"
+#include "dri2_shared.h"
+#include <xf86drm.h>
+#include <xcb/dri2.h>
+
+struct dri2_egl_x11_dri2_display
+{
+   struct dri2_egl_x11_display  base;
+   int                          dri2_major;
+   int                          dri2_minor;
+   char                        *device_name;
+};
+
+struct dri2_egl_x11_dri2_surface
+{
+   struct dri2_egl_x11_surface  base;
+   __DRIbuffer                  buffers[5];
+   int                          buffer_count;
+   xcb_xfixes_region_t          region;
+   int                          have_fake_front;
+   int                          swap_interval;
+};
+
+extern const __DRIimageLookupExtension image_lookup_extension;
+extern struct dri2_extension_match dri2_driver_extensions[];
+extern struct dri2_extension_match dri2_core_extensions[];
+
+/* typecasts */
+_EGL_DRIVER_TYPECAST(dri2_egl_x11_dri2_display, _EGLDisplay, obj->DriverData)
+_EGL_DRIVER_TYPECAST(dri2_egl_x11_dri2_surface, _EGLSurface, obj)
+
+/**
+ * Process list of buffer received from the server
+ *
+ * Processes the list of buffers received in a reply from the server to either
+ * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat.
+ */
+static void
+dri2_process_buffers(struct dri2_egl_x11_dri2_surface *dri2_surf,
+                     xcb_dri2_dri2_buffer_t *buffers, unsigned count)
+{
+   struct dri2_egl_x11_dri2_display *dri2_dpy =
+      dri2_egl_x11_dri2_display(dri2_surf->base.base.base.Resource.Display);
+   xcb_rectangle_t rectangle;
+   int i;
+
+   dri2_surf->buffer_count = count;
+   dri2_surf->have_fake_front = 0;
+
+   /* This assumes the DRI2 buffer attachment tokens matches the
+    * __DRIbuffer tokens. */
+   for (i = 0; i < count; i++) {
+      dri2_surf->buffers[i].attachment = buffers[i].attachment;
+      dri2_surf->buffers[i].name = buffers[i].name;
+      dri2_surf->buffers[i].pitch = buffers[i].pitch;
+      dri2_surf->buffers[i].cpp = buffers[i].cpp;
+      dri2_surf->buffers[i].flags = buffers[i].flags;
+
+      /* We only use the DRI drivers single buffer configs.  This
+       * means that if we try to render to a window, DRI2 will give us
+       * the fake front buffer, which we'll use as a back buffer.
+       * Note that EGL doesn't require that several clients rendering
+       * to the same window must see the same aux buffers. */
+      if (dri2_surf->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT)
+         dri2_surf->have_fake_front = 1;
+   }
+
+   if (dri2_surf->region != XCB_NONE)
+      xcb_xfixes_destroy_region(dri2_dpy->base.conn, dri2_surf->region);
+
+   rectangle.x = 0;
+   rectangle.y = 0;
+   rectangle.width = dri2_surf->base.base.base.Width;
+   rectangle.height = dri2_surf->base.base.base.Height;
+   dri2_surf->region = xcb_generate_id(dri2_dpy->base.conn);
+   xcb_xfixes_create_region(dri2_dpy->base.conn, dri2_surf->region, 1, &rectangle);
+}
+
+static __DRIbuffer *
+dri2_get_buffers(__DRIdrawable * driDrawable,
+                int *width, int *height,
+                unsigned int *attachments, int count,
+                int *out_count, void *loaderPrivate)
+{
+   struct dri2_egl_x11_dri2_surface *dri2_surf = loaderPrivate;
+   struct dri2_egl_x11_dri2_display *dri2_dpy =
+      dri2_egl_x11_dri2_display(dri2_surf->base.base.base.Resource.Display);
+   xcb_dri2_dri2_buffer_t *buffers;
+   xcb_dri2_get_buffers_reply_t *reply;
+   xcb_dri2_get_buffers_cookie_t cookie;
+
+   cookie = xcb_dri2_get_buffers_unchecked (dri2_dpy->base.conn,
+                                            dri2_surf->base.drawable,
+                                            count, count, attachments);
+   reply = xcb_dri2_get_buffers_reply (dri2_dpy->base.conn, cookie, NULL);
+   buffers = xcb_dri2_get_buffers_buffers (reply);
+   if (buffers == NULL)
+      return NULL;
+
+   *out_count = reply->count;
+   dri2_surf->base.base.base.Width = *width = reply->width;
+   dri2_surf->base.base.base.Height = *height = reply->height;
+   dri2_process_buffers(dri2_surf, buffers, *out_count);                       
+
+   free(reply);
+
+   return dri2_surf->buffers;
+}
+
+static void
+dri2_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
+{
+   /* FIXME: Does EGL support front buffer rendering at all? */
+
+#if 0
+   struct dri2_egl_surface *dri2_surf = loaderPrivate;
+
+   dri2WaitGL(dri2_surf);
+#endif
+}
+
+
+static __DRIbuffer *
+dri2_get_buffers_with_format(__DRIdrawable * driDrawable,
+                             int *width, int *height,
+                             unsigned int *attachments, int count,
+                             int *out_count, void *loaderPrivate)
+{
+   struct dri2_egl_x11_dri2_surface *dri2_surf = loaderPrivate;
+   struct dri2_egl_x11_dri2_display *dri2_dpy =
+      dri2_egl_x11_dri2_display(dri2_surf->base.base.base.Resource.Display);
+   xcb_dri2_dri2_buffer_t *buffers;
+   xcb_dri2_get_buffers_with_format_reply_t *reply;
+   xcb_dri2_get_buffers_with_format_cookie_t cookie;
+   xcb_dri2_attach_format_t *format_attachments;
+
+   format_attachments = (xcb_dri2_attach_format_t *) attachments;
+   cookie = xcb_dri2_get_buffers_with_format_unchecked (dri2_dpy->base.conn,
+                                                        dri2_surf->base.drawable,
+                                                        count, count,
+                                                        format_attachments);
+
+   reply = xcb_dri2_get_buffers_with_format_reply (dri2_dpy->base.conn,
+                                                   cookie, NULL);
+   if (reply == NULL)
+      return NULL;
+
+   buffers = xcb_dri2_get_buffers_with_format_buffers (reply);
+   dri2_surf->base.base.base.Width = *width = reply->width;
+   dri2_surf->base.base.base.Height = *height = reply->height;
+   *out_count = reply->count;
+   dri2_process_buffers(dri2_surf, buffers, *out_count);                       
+
+   free(reply);
+
+   return dri2_surf->buffers;
+}
+
+static EGLBoolean
+dri2_connect(struct dri2_egl_x11_dri2_display *dri2_dpy)
+{
+   xcb_xfixes_query_version_reply_t *xfixes_query;
+   xcb_xfixes_query_version_cookie_t xfixes_query_cookie;
+   xcb_dri2_query_version_reply_t *dri2_query;
+   xcb_dri2_query_version_cookie_t dri2_query_cookie;
+   xcb_dri2_connect_reply_t *connect;
+   xcb_dri2_connect_cookie_t connect_cookie;
+   xcb_generic_error_t *error;
+   xcb_screen_iterator_t s;
+
+   xcb_prefetch_extension_data (dri2_dpy->base.conn, &xcb_xfixes_id);
+   xcb_prefetch_extension_data (dri2_dpy->base.conn, &xcb_dri2_id);
+
+   xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->base.conn,
+						  XCB_XFIXES_MAJOR_VERSION,
+						  XCB_XFIXES_MINOR_VERSION);
+   
+   dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->base.conn,
+					       XCB_DRI2_MAJOR_VERSION,
+					       XCB_DRI2_MINOR_VERSION);
+
+   s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->base.conn));
+   connect_cookie = xcb_dri2_connect_unchecked (dri2_dpy->base.conn,
+						s.data->root,
+						XCB_DRI2_DRIVER_TYPE_DRI);
+   
+   xfixes_query =
+      xcb_xfixes_query_version_reply (dri2_dpy->base.conn,
+				      xfixes_query_cookie, &error);
+   if (xfixes_query == NULL ||
+       error != NULL || xfixes_query->major_version < 2) {
+      _eglLog(_EGL_FATAL, "DRI2: failed to query xfixes version");
+      free(error);
+      return EGL_FALSE;
+   }
+   free(xfixes_query);
+
+   dri2_query =
+      xcb_dri2_query_version_reply (dri2_dpy->base.conn, dri2_query_cookie, &error);
+   if (dri2_query == NULL || error != NULL) {
+      _eglLog(_EGL_FATAL, "DRI2: failed to query version");
+      free(error);
+      return EGL_FALSE;
+   }
+   dri2_dpy->dri2_major = dri2_query->major_version;
+   dri2_dpy->dri2_minor = dri2_query->minor_version;
+   free(dri2_query);
+
+   connect = xcb_dri2_connect_reply (dri2_dpy->base.conn, connect_cookie, NULL);
+   if (connect == NULL ||
+       connect->driver_name_length + connect->device_name_length == 0) {
+      _eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
+      return EGL_FALSE;
+   }
+
+   dri2_dpy->device_name =
+      dri2_strndup(xcb_dri2_connect_device_name (connect),
+		   xcb_dri2_connect_device_name_length (connect));
+		   
+   dri2_dpy->base.base.driver_name =
+      dri2_strndup(xcb_dri2_connect_driver_name (connect),
+		   xcb_dri2_connect_driver_name_length (connect));
+
+   if (dri2_dpy->device_name == NULL || dri2_dpy->base.base.driver_name == NULL) {
+      free(dri2_dpy->device_name);
+      free(dri2_dpy->base.base.driver_name);
+      free(connect);
+      return EGL_FALSE;
+   }
+   free(connect);
+
+   return EGL_TRUE;
+}
+
+static EGLBoolean
+dri2_authenticate(struct dri2_egl_x11_dri2_display *dri2_dpy)
+{
+   xcb_dri2_authenticate_reply_t *authenticate;
+   xcb_dri2_authenticate_cookie_t authenticate_cookie;
+   xcb_screen_iterator_t s;
+   drm_magic_t magic;
+
+   if (drmGetMagic(dri2_dpy->base.base.fd, &magic)) {
+      _eglLog(_EGL_FATAL, "DRI2: failed to get drm magic");
+      return EGL_FALSE;
+   }
+
+   s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->base.conn));
+   authenticate_cookie =
+      xcb_dri2_authenticate_unchecked(dri2_dpy->base.conn, s.data->root, magic);
+   authenticate =
+      xcb_dri2_authenticate_reply(dri2_dpy->base.conn, authenticate_cookie, NULL);
+   if (authenticate == NULL || !authenticate->authenticated) {
+      _eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
+      free(authenticate);
+      return EGL_FALSE;
+   }
+
+   free(authenticate);
+
+   return EGL_TRUE;
+}
+
+static EGLBoolean
+dri2_copy_region(_EGLDriver *drv, _EGLDisplay *disp,
+                 _EGLSurface *draw, xcb_xfixes_region_t region)
+{
+   struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
+   struct dri2_egl_x11_dri2_display *dri2_dpy = dri2_egl_x11_dri2_display(disp);
+   struct dri2_egl_x11_dri2_surface *dri2_surf = dri2_egl_x11_dri2_surface(draw);
+   _EGLContext *ctx;
+   xcb_dri2_copy_region_cookie_t cookie;
+
+   if (dri2_drv->glFlush) {
+      ctx = _eglGetCurrentContext();
+      if (ctx && ctx->DrawSurface == &dri2_surf->base.base.base)
+         dri2_drv->glFlush();
+   }
+
+   (*dri2_dpy->base.base.flush->flush)(dri2_surf->base.base.dri_drawable);
+
+#if 0
+   /* FIXME: Add support for dri swapbuffers, that'll give us swap
+    * interval and page flipping (at least for fullscreen windows) as
+    * well as the page flip event.  Unless surface->SwapBehavior is
+    * EGL_BUFFER_PRESERVED. */
+#if __DRI2_FLUSH_VERSION >= 2
+   if (pdraw->psc->f)
+      (*pdraw->psc->f->flushInvalidate)(pdraw->driDrawable);
+#endif
+#endif
+
+   if (!dri2_surf->have_fake_front)
+      return EGL_TRUE;
+
+   cookie = xcb_dri2_copy_region_unchecked(dri2_dpy->base.conn,
+                                           dri2_surf->base.drawable,
+                                           region,
+                                           XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT,
+                                           XCB_DRI2_ATTACHMENT_BUFFER_FAKE_FRONT_LEFT);
+   free(xcb_dri2_copy_region_reply(dri2_dpy->base.conn, cookie, NULL));
+
+   return EGL_TRUE;
+}
+
+static EGLBoolean
+dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw,
+                         EGLint numRects, const EGLint *rects)
+{
+   struct dri2_egl_x11_dri2_display *dri2_dpy = dri2_egl_x11_dri2_display(disp);
+   struct dri2_egl_x11_dri2_surface *dri2_surf = dri2_egl_x11_dri2_surface(draw);
+   EGLBoolean ret;
+   xcb_xfixes_region_t region;
+   xcb_rectangle_t rectangles[16];
+   int i;
+
+   if (numRects > ARRAY_SIZE(rectangles))
+      return dri2_copy_region(drv, disp, draw, dri2_surf->region);
+
+   /* FIXME: Invert y here? */
+   for (i = 0; i < numRects; i++) {
+      rectangles[i].x = rects[i * 4];
+      rectangles[i].y = rects[i * 4 + 1];
+      rectangles[i].width = rects[i * 4 + 2];
+      rectangles[i].height = rects[i * 4 + 3];
+   }
+
+   region = xcb_generate_id(dri2_dpy->base.conn);
+   xcb_xfixes_create_region(dri2_dpy->base.conn, region, numRects, rectangles);
+   ret = dri2_copy_region(drv, disp, draw, region);
+   xcb_xfixes_destroy_region(dri2_dpy->base.conn, region);
+
+   return ret;
+}
+
+static EGLBoolean
+dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
+{
+   struct dri2_egl_x11_dri2_surface *dri2_surf = dri2_egl_x11_dri2_surface(draw);
+
+   return dri2_copy_region(drv, disp, draw, dri2_surf->region);
+}
+
+static _EGLImage *
+dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx,
+                             EGLClientBuffer buffer, const EGLint *attr_list)
+{
+   struct dri2_egl_x11_dri2_display *dri2_dpy = dri2_egl_x11_dri2_display(disp);
+   struct dri2_egl_image *dri2_img;
+   unsigned int attachments[1];
+   xcb_drawable_t drawable;
+   xcb_dri2_get_buffers_cookie_t buffers_cookie;
+   xcb_dri2_get_buffers_reply_t *buffers_reply;
+   xcb_dri2_dri2_buffer_t *buffers;
+   xcb_get_geometry_cookie_t geometry_cookie;
+   xcb_get_geometry_reply_t *geometry_reply;
+   xcb_generic_error_t *error;
+   int stride, format;
+
+   drawable = (xcb_drawable_t) buffer;
+   xcb_dri2_create_drawable (dri2_dpy->base.conn, drawable);
+   attachments[0] = XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT;
+   buffers_cookie =
+      xcb_dri2_get_buffers_unchecked (dri2_dpy->base.conn,
+                                      drawable, 1, 1, attachments);
+   geometry_cookie = xcb_get_geometry (dri2_dpy->base.conn, drawable);
+   buffers_reply = xcb_dri2_get_buffers_reply (dri2_dpy->base.conn,
+                                               buffers_cookie, NULL);
+   buffers = xcb_dri2_get_buffers_buffers (buffers_reply);
+   if (buffers == NULL) {
+      return NULL;
+   }
+
+   geometry_reply = xcb_get_geometry_reply (dri2_dpy->base.conn,
+                                            geometry_cookie, &error);
+   if (geometry_reply == NULL || error != NULL) {
+      _eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
+      free(error);
+      free(buffers_reply);
+   }
+
+   switch (geometry_reply->depth) {
+   case 16:
+      format = __DRI_IMAGE_FORMAT_RGB565;
+      break;
+   case 24:
+      format = __DRI_IMAGE_FORMAT_XRGB8888;
+      break;
+   case 32:
+      format = __DRI_IMAGE_FORMAT_ARGB8888;
+      break;
+   default:
+      _eglError(EGL_BAD_PARAMETER,
+                "dri2_create_image_khr: unsupported pixmap depth");
+      free(buffers_reply);
+      free(geometry_reply);
+      return NULL;
+   }
+
+   dri2_img = malloc(sizeof *dri2_img);
+   if (!dri2_img) {
+      free(buffers_reply);
+      free(geometry_reply);
+      _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
+      return EGL_NO_IMAGE_KHR;
+   }
+
+   if (!_eglInitImage(&dri2_img->base, disp, attr_list)) {
+      free(buffers_reply);
+      free(geometry_reply);
+      return EGL_NO_IMAGE_KHR;
+   }
+
+   stride = buffers[0].pitch / buffers[0].cpp;
+   dri2_img->dri_image =
+      dri2_dpy->base.base.image->createImageFromName(dri2_dpy->base.base.dri_screen,
+                                           buffers_reply->width,
+                                           buffers_reply->height,
+                                           format,
+                                           buffers[0].name,
+                                           stride,
+                                           dri2_img);
+
+   free(buffers_reply);
+   free(geometry_reply);
+
+   return &dri2_img->base;
+}
+
+/**
+ * Called via eglTerminate(), drv->API.Terminate().
+ */
+static EGLBoolean
+dri2_x11_dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
+{
+   struct dri2_egl_x11_dri2_display *dri2_dpy = dri2_egl_x11_dri2_display(disp);
+
+   _eglReleaseDisplayResources(drv, disp);
+   _eglCleanupDisplay(disp);
+
+   dri2_dpy->base.base.core->destroyScreen(dri2_dpy->base.base.dri_screen);
+   close(dri2_dpy->base.base.fd);
+   dlclose(dri2_dpy->base.base.driver);
+   if (disp->PlatformDisplay == NULL)
+      xcb_disconnect(dri2_dpy->base.conn);
+   free(dri2_dpy);
+   disp->DriverData = NULL;
+
+   return EGL_TRUE;
+}
+
+static _EGLSurface *
+dri2_x11_dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
+                              _EGLConfig *conf, EGLNativeWindowType window,
+                              const EGLint *attrib_list)
+{
+   struct dri2_egl_x11_display *dri2_dpy = dri2_egl_x11_display(disp);
+   struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
+   struct dri2_egl_x11_dri2_surface *dri2_surf;
+   xcb_get_geometry_cookie_t cookie;
+   xcb_get_geometry_reply_t *reply;
+   xcb_screen_iterator_t s;
+   xcb_generic_error_t *error;
+
+   dri2_surf = malloc(sizeof *dri2_surf);
+   if (!dri2_surf) {
+      _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
+      return NULL;
+   }
+   
+   if (!_eglInitSurface(&dri2_surf->base.base.base, disp, type, conf, attrib_list))
+      goto cleanup_surf;
+
+   dri2_surf->region = XCB_NONE;
+   if (type == EGL_PBUFFER_BIT) {
+      dri2_surf->base.drawable = xcb_generate_id(dri2_dpy->conn);
+      s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
+      xcb_create_pixmap(dri2_dpy->conn,
+                        _eglGetConfigKey(conf, EGL_BUFFER_SIZE),
+                        dri2_surf->base.drawable, s.data->root,
+                        dri2_surf->base.base.base.Width, dri2_surf->base.base.base.Height);
+   } else {
+      dri2_surf->base.drawable = window;
+   }
+
+   dri2_surf->base.base.dri_drawable = 
+      (*dri2_dpy->base.dri2->createNewDrawable) (dri2_dpy->base.dri_screen,
+                                            dri2_conf->dri_config, dri2_surf);
+
+   if (dri2_surf->base.base.dri_drawable == NULL) {
+      _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
+      goto cleanup_pixmap;
+   }
+
+   xcb_dri2_create_drawable (dri2_dpy->conn, dri2_surf->base.drawable);
+
+   if (type != EGL_PBUFFER_BIT) {
+      cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->base.drawable);
+      reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error);
+      if (reply == NULL || error != NULL) {
+         _eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
+         free(error);
+         goto cleanup_dri_drawable;
+      }
+
+      dri2_surf->base.base.base.Width = reply->width;
+      dri2_surf->base.base.base.Height = reply->height;
+      free(reply);
+   }
+
+   return &dri2_surf->base.base.base;
+
+ cleanup_dri_drawable:
+   dri2_dpy->base.core->destroyDrawable(dri2_surf->base.base.dri_drawable);
+ cleanup_pixmap:
+   if (type == EGL_PBUFFER_BIT)
+      xcb_free_pixmap(dri2_dpy->conn, dri2_surf->base.drawable);
+ cleanup_surf:
+   free(dri2_surf);
+
+   return NULL;
+}
+
+/**
+ * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
+ */
+static _EGLSurface *
+dri2_x11_dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
+                                      _EGLConfig *conf, EGLNativeWindowType window,
+                                      const EGLint *attrib_list)
+{
+   return dri2_x11_dri2_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
+                              window, attrib_list);
+}
+
+static _EGLSurface *
+dri2_x11_dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
+                                      _EGLConfig *conf, EGLNativePixmapType pixmap,
+                                      const EGLint *attrib_list)
+{
+   return dri2_x11_dri2_create_surface(drv, disp, EGL_PIXMAP_BIT, conf,
+                              pixmap, attrib_list);
+}
+
+static _EGLSurface *
+dri2_x11_dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
+                                       _EGLConfig *conf, const EGLint *attrib_list)
+{
+   return dri2_x11_dri2_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
+                              XCB_WINDOW_NONE, attrib_list);
+}
+
+static EGLBoolean
+dri2_x11_dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
+{
+   struct dri2_egl_x11_display *dri2_dpy = dri2_egl_x11_display(disp);
+   struct dri2_egl_x11_dri2_surface *dri2_surf = dri2_egl_x11_dri2_surface(surf);
+
+   if (_eglIsSurfaceBound(surf))
+      return EGL_TRUE;
+
+   (*dri2_dpy->base.core->destroyDrawable)(dri2_surf->base.base.dri_drawable);
+
+   xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->base.drawable);
+
+   if (surf->Type == EGL_PBUFFER_BIT)
+      xcb_free_pixmap (dri2_dpy->conn, dri2_surf->base.drawable);
+
+   free(surf);
+
+   return EGL_TRUE;
+}
+
+static _EGLImage *
+dri2_x11_dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
+		      _EGLContext *ctx, EGLenum target,
+		      EGLClientBuffer buffer, const EGLint *attr_list)
+{
+   if (target == EGL_NATIVE_PIXMAP_KHR) {
+      return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list);
+   } else {
+      return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
+   }
+}
+
+static void
+dri2_x11_dri2_initialize_driver(_EGLDriver *drv)
+{
+   struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
+
+   dri2_drv->base.API.Terminate = dri2_x11_dri2_terminate;
+   dri2_drv->base.API.CreateWindowSurface = dri2_x11_dri2_create_window_surface;
+   dri2_drv->base.API.CreatePixmapSurface = dri2_x11_dri2_create_pixmap_surface;
+   dri2_drv->base.API.CreatePbufferSurface = dri2_x11_dri2_create_pbuffer_surface;
+   dri2_drv->base.API.DestroySurface = dri2_x11_dri2_destroy_surface;
+   dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
+   dri2_drv->base.API.CopyBuffers = dri2_copy_buffers;
+   dri2_drv->base.API.CreateImageKHR = dri2_x11_dri2_create_image_khr;
+   dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
+   dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
+   dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
+   dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
+
+   dri2_drv->base.Name = "DRI2_X11_DRI2";
+}
+
+EGLBoolean
+dri2_initialize_x11_dri2(_EGLDriver *drv, _EGLDisplay *disp,
+                    EGLint *major, EGLint *minor)
+{
+   struct dri2_egl_x11_dri2_display *dri2_dpy;
+   const __DRIextension **extensions;
+
+   dri2_dpy = malloc(sizeof *dri2_dpy);
+   if (!dri2_dpy)
+      return _eglError(EGL_BAD_ALLOC, "eglInitialize");
+
+   memset(dri2_dpy, 0, sizeof *dri2_dpy);
+
+   disp->DriverData = (void *) dri2_dpy;
+   if (disp->PlatformDisplay == NULL) {
+      dri2_dpy->base.conn = xcb_connect(0, 0);
+   } else {
+      dri2_dpy->base.conn = XGetXCBConnection((Display *) disp->PlatformDisplay);
+   }
+
+   if (xcb_connection_has_error(dri2_dpy->base.conn)) {
+      _eglLog(_EGL_WARNING, "DRI2: xcb_connect failed");
+      goto cleanup_dpy;
+   }
+
+   if (dri2_dpy->base.conn) {
+      if (!dri2_connect(dri2_dpy)) {
+         goto cleanup_conn;
+      }
+   }
+
+   extensions = dri2_load_driver(disp);
+   if (extensions == NULL)
+      goto cleanup_conn;
+
+   if (!dri2_bind_extensions((struct dri2_egl_display *)dri2_dpy, dri2_driver_extensions, extensions)) {
+      goto cleanup_driver;
+   }
+
+   dri2_dpy->base.base.fd = open(dri2_dpy->device_name, O_RDWR);
+   if (dri2_dpy->base.base.fd == -1) {
+      _eglLog(_EGL_WARNING,
+              "DRI2: could not open %s (%s)", dri2_dpy->device_name,
+              strerror(errno));
+      goto cleanup_driver;
+   }
+
+   if (dri2_dpy->base.conn) {
+      if (!dri2_authenticate(dri2_dpy)) {
+         goto cleanup_fd;
+      }
+   }
+
+   if (dri2_dpy->dri2_minor >= 1) {
+      dri2_dpy->base.base.dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
+      dri2_dpy->base.base.dri2_loader_extension.base.version = 3;
+      dri2_dpy->base.base.dri2_loader_extension.getBuffers = dri2_get_buffers;
+      dri2_dpy->base.base.dri2_loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
+      dri2_dpy->base.base.dri2_loader_extension.getBuffersWithFormat =
+         dri2_get_buffers_with_format;
+   } else {
+      dri2_dpy->base.base.dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
+      dri2_dpy->base.base.dri2_loader_extension.base.version = 2;
+      dri2_dpy->base.base.dri2_loader_extension.getBuffers = dri2_get_buffers;
+      dri2_dpy->base.base.dri2_loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
+      dri2_dpy->base.base.dri2_loader_extension.getBuffersWithFormat = NULL;
+   }
+
+   dri2_dpy->base.base.extensions[0] = &dri2_dpy->base.base.dri2_loader_extension.base;
+   dri2_dpy->base.base.extensions[1] = &image_lookup_extension.base;
+   dri2_dpy->base.base.extensions[2] = NULL;
+
+   if (!dri2_create_screen(disp))
+      goto cleanup_fd;
+
+   if (dri2_dpy->base.conn) {
+      if (!dri2_add_configs_for_visuals((struct dri2_egl_x11_display *)dri2_dpy, disp, 1))
+         goto cleanup_configs;
+   }
+
+   disp->Extensions.MESA_drm_image = EGL_TRUE;
+   disp->Extensions.KHR_image_base = EGL_TRUE;
+   disp->Extensions.KHR_image_pixmap = EGL_TRUE;
+   disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
+   disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
+   disp->Extensions.NOK_swap_region = EGL_TRUE;
+   disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE;
+
+   /* we're supporting EGL 1.4 */
+   *major = 1;
+   *minor = 4;
+
+   dri2_x11_dri2_initialize_driver(drv);
+
+   return EGL_TRUE;
+
+ cleanup_configs:
+   _eglCleanupDisplay(disp);
+   dri2_dpy->base.base.core->destroyScreen(dri2_dpy->base.base.dri_screen);
+ cleanup_fd:
+   close(dri2_dpy->base.base.fd);
+ cleanup_driver:
+   dlclose(dri2_dpy->base.base.driver);
+ cleanup_conn:
+   if (disp->PlatformDisplay == NULL)
+      xcb_disconnect(dri2_dpy->base.conn);
+ cleanup_dpy:
+   free(dri2_dpy);
+
+   return EGL_FALSE;
+}
+
diff --git a/src/egl/drivers/dri2/x11_shared.c b/src/egl/drivers/dri2/x11_shared.c
new file mode 100644
index 0000000..9c0df13
--- /dev/null
+++ b/src/egl/drivers/dri2/x11_shared.c
@@ -0,0 +1,132 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS 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:
+ *    Kristian Høgsberg <krh at bitplanet.net>
+ */
+
+#include "x11_shared.h"
+
+EGLBoolean
+dri2_add_configs_for_visuals(struct dri2_egl_x11_display *dri2_dpy,
+                             _EGLDisplay *disp, int accel)
+{
+   xcb_screen_iterator_t s;
+   xcb_depth_iterator_t d;
+   xcb_visualtype_t *visuals;
+   int i, j, id;
+   struct dri2_egl_config *conf;
+   EGLint surface_type;
+  
+   if (xcb_connection_has_error(dri2_dpy->conn)) {
+      _eglLog(_EGL_WARNING, "xcb connection error");
+   } 
+   
+   s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
+   d = xcb_screen_allowed_depths_iterator(s.data);
+   id = 1;
+
+   surface_type =
+      EGL_WINDOW_BIT |
+      EGL_PIXMAP_BIT |
+      EGL_PBUFFER_BIT |
+      EGL_SWAP_BEHAVIOR_PRESERVED_BIT;
+
+   while (d.rem > 0) {
+      EGLBoolean class_added[6] = { 0, };
+
+      visuals = xcb_depth_visuals(d.data);
+      for (i = 0; i < xcb_depth_visuals_length(d.data); i++) {
+         if (class_added[visuals[i]._class])
+            continue;
+
+         class_added[visuals[i]._class] = EGL_TRUE;
+         for (j = 0; dri2_dpy->base.driver_configs[j]; j++) {
+            conf = dri2_add_config(disp, dri2_dpy->base.driver_configs[j],
+                                   id++, d.data->depth, surface_type, accel);
+            if (conf == NULL)
+               continue;
+            _eglSetConfigKey(&conf->base,
+                             EGL_NATIVE_VISUAL_ID, visuals[i].visual_id);
+            _eglSetConfigKey(&conf->base,
+                             EGL_NATIVE_VISUAL_TYPE, visuals[i]._class);
+         }
+      }
+
+      xcb_depth_next(&d);      
+   }
+
+   if (!_eglGetArraySize(disp->Configs)) {
+      _eglLog(_EGL_WARNING, "DRI2: failed to create any config");
+      return EGL_FALSE;
+   }
+
+   return EGL_TRUE;
+}
+
+EGLBoolean
+dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
+                  EGLNativePixmapType target)
+{
+   struct dri2_egl_x11_display *dri2_dpy = dri2_egl_x11_display(disp);
+   struct dri2_egl_x11_surface *dri2_surf = dri2_egl_x11_surface(surf);
+   xcb_gcontext_t gc;
+
+   if (dri2_dpy->base.flush) {
+      (*dri2_dpy->base.flush->flush)(dri2_surf->base.dri_drawable);
+   }
+
+   gc = xcb_generate_id(dri2_dpy->conn);
+   xcb_create_gc(dri2_dpy->conn, gc, target, 0, NULL);
+   xcb_copy_area(dri2_dpy->conn,
+                  dri2_surf->drawable,
+                  target,
+                  gc,
+                  0, 0,
+                  0, 0,
+                  dri2_surf->base.base.Width,
+                  dri2_surf->base.base.Height);
+   xcb_free_gc(dri2_dpy->conn, gc);
+
+   return EGL_TRUE;
+}
+
+EGLBoolean
+dri2_initialize_x11(_EGLDriver *drv, _EGLDisplay *disp,
+                    EGLint *major, EGLint *minor)
+{
+   EGLBoolean initialized = EGL_TRUE;
+
+   int x11_dri2_accel = (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL);
+
+   if (x11_dri2_accel) {
+      if (!dri2_initialize_x11_dri2(drv, disp, major, minor)) {
+         initialized = dri2_initialize_x11_swrast(drv, disp, major, minor);
+      }
+   } else {
+      initialized = dri2_initialize_x11_swrast(drv, disp, major, minor);
+   }
+
+   return initialized;
+}
+
diff --git a/src/egl/drivers/dri2/x11_shared.h b/src/egl/drivers/dri2/x11_shared.h
new file mode 100644
index 0000000..4c6d8ae
--- /dev/null
+++ b/src/egl/drivers/dri2/x11_shared.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS 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:
+ *    Kristian Høgsberg <krh at bitplanet.net>
+ */
+
+#ifndef X11_SHARED_INCLUDED
+#define X11_SHARED_INCLUDED
+
+#include "egl_dri2.h"
+#include <xcb/xcb.h>
+#include <xcb/xfixes.h>
+#include <X11/Xlib-xcb.h>
+
+struct dri2_egl_x11_display
+{
+   struct dri2_egl_display   base;
+   xcb_connection_t         *conn;
+};
+
+struct dri2_egl_x11_surface
+{
+   struct dri2_egl_surface base;
+   xcb_drawable_t          drawable;
+};
+
+_EGL_DRIVER_TYPECAST(dri2_egl_x11_display, _EGLDisplay, obj->DriverData)
+_EGL_DRIVER_TYPECAST(dri2_egl_x11_surface, _EGLSurface, obj)
+
+_EGLSurface *
+dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
+                           _EGLConfig *conf, EGLNativeWindowType window,
+                           const EGLint *attrib_list);
+_EGLSurface *
+dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
+                           _EGLConfig *conf, EGLNativePixmapType pixmap,
+                           const EGLint *attrib_list);
+
+_EGLSurface *
+dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
+                            _EGLConfig *conf, const EGLint *attrib_list);
+
+EGLBoolean
+dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, 
+                  _EGLSurface *surf, EGLNativePixmapType target);
+
+EGLBoolean
+dri2_add_configs_for_visuals(struct dri2_egl_x11_display *dri2_dpy,
+                             _EGLDisplay *disp, int accel);
+
+EGLBoolean
+dri2_initialize_x11_swrast(_EGLDriver *drv, _EGLDisplay *disp,
+                           EGLint *major, EGLint *minor);
+
+EGLBoolean
+dri2_initialize_x11_dri2(_EGLDriver *drv, _EGLDisplay *disp,
+                         EGLint *major, EGLint *minor);
+
+#endif
+
diff --git a/src/egl/drivers/dri2/x11_swrast.c b/src/egl/drivers/dri2/x11_swrast.c
new file mode 100644
index 0000000..84e6494
--- /dev/null
+++ b/src/egl/drivers/dri2/x11_swrast.c
@@ -0,0 +1,486 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS 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:
+ *    Kristian Høgsberg <krh at bitplanet.net>
+ *    Haitao Feng   <haitao.feng at intel.com>
+ */
+
+#include "x11_shared.h"
+
+struct dri2_egl_x11_swrast_surface
+{
+   struct dri2_egl_x11_surface base;
+   int                  depth;
+   int                  bytes_per_pixel;
+   xcb_gcontext_t       gc;
+   xcb_gcontext_t       swapgc;
+};
+
+_EGL_DRIVER_TYPECAST(dri2_egl_x11_swrast_surface, _EGLSurface, obj)
+
+static struct dri2_extension_match swrast_driver_extensions[] = {
+   { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
+   { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
+   { NULL }
+};
+
+static struct dri2_extension_match swrast_core_extensions[] = {
+   { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
+   { NULL }
+};
+
+static void
+swrastCreateDrawable(struct dri2_egl_x11_display * dri2_dpy,
+                     struct dri2_egl_x11_swrast_surface * dri2_surf,
+                     int depth)
+{
+   uint32_t           mask;
+   const uint32_t     function = GXcopy;
+   uint32_t           valgc[2];
+   
+   /* create GC's */
+   dri2_surf->gc = xcb_generate_id(dri2_dpy->conn);
+   mask = XCB_GC_FUNCTION;
+   xcb_create_gc(dri2_dpy->conn, dri2_surf->gc, dri2_surf->base.drawable, mask, &function);
+
+   dri2_surf->swapgc = xcb_generate_id(dri2_dpy->conn);
+   mask = XCB_GC_FUNCTION | XCB_GC_GRAPHICS_EXPOSURES;
+   valgc[0] = function;
+   valgc[1] = False;
+   xcb_create_gc(dri2_dpy->conn, dri2_surf->swapgc, dri2_surf->base.drawable, mask, valgc);
+   dri2_surf->depth = depth;
+   switch (depth) {
+      case 32:
+      case 24:
+         dri2_surf->bytes_per_pixel = 4;
+         break;
+      case 16:
+         dri2_surf->bytes_per_pixel = 2;
+         break;
+      case 8:
+         dri2_surf->bytes_per_pixel = 1;
+         break;
+      case 0:
+         dri2_surf->bytes_per_pixel = 0;
+         break;
+      default:
+         _eglLog(_EGL_WARNING, "unsupported depth %d", depth);
+   }
+}
+
+static void
+swrastDestroyDrawable(struct dri2_egl_x11_display * dri2_dpy,
+                      struct dri2_egl_x11_swrast_surface * dri2_surf)
+{
+   xcb_free_gc(dri2_dpy->conn, dri2_surf->gc);
+   xcb_free_gc(dri2_dpy->conn, dri2_surf->swapgc);
+}
+
+static void
+swrastGetDrawableInfo(__DRIdrawable * draw,
+                      int *x, int *y, int *w, int *h,
+                      void *loaderPrivate)
+{
+   struct dri2_egl_x11_swrast_surface *dri2_surf = loaderPrivate;
+   struct dri2_egl_x11_display *dri2_dpy =
+      dri2_egl_x11_display(dri2_surf->base.base.base.Resource.Display);
+
+   xcb_get_geometry_cookie_t cookie;
+   xcb_get_geometry_reply_t *reply;
+   xcb_generic_error_t *error;
+
+   *w = *h = 0;
+   cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->base.drawable);
+   reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error);
+   if (reply == NULL)
+      return;
+
+   if (error != NULL) {
+      _eglLog(_EGL_WARNING, "error in xcb_get_geometry");
+      free(error);
+   } else {
+      *w = reply->width;
+      *h = reply->height;
+   }
+   free(reply);
+}
+
+static void
+swrastPutImage(__DRIdrawable * draw, int op,
+               int x, int y, int w, int h,
+               char *data, void *loaderPrivate)
+{
+   struct dri2_egl_x11_swrast_surface *dri2_surf = loaderPrivate;
+   struct dri2_egl_x11_display *dri2_dpy =
+      dri2_egl_x11_display(dri2_surf->base.base.base.Resource.Display);
+
+   xcb_gcontext_t gc;
+
+   switch (op) {
+   case __DRI_SWRAST_IMAGE_OP_DRAW:
+      gc = dri2_surf->gc;
+      break;
+   case __DRI_SWRAST_IMAGE_OP_SWAP:
+      gc = dri2_surf->swapgc;
+      break;
+   default:
+      return;
+   }
+
+   xcb_put_image(dri2_dpy->conn, XCB_IMAGE_FORMAT_Z_PIXMAP, dri2_surf->base.drawable,
+                 gc, w, h, x, y, 0, dri2_surf->depth,
+                 w*h*dri2_surf->bytes_per_pixel, (const uint8_t *)data);
+}
+
+static void
+swrastGetImage(__DRIdrawable * read,
+               int x, int y, int w, int h,
+               char *data, void *loaderPrivate)
+{
+   struct dri2_egl_x11_swrast_surface *dri2_surf = loaderPrivate;
+   struct dri2_egl_x11_display *dri2_dpy =
+      dri2_egl_x11_display(dri2_surf->base.base.base.Resource.Display);
+
+   xcb_get_image_cookie_t cookie;
+   xcb_get_image_reply_t *reply;
+   xcb_generic_error_t *error;
+
+   cookie = xcb_get_image (dri2_dpy->conn, XCB_IMAGE_FORMAT_Z_PIXMAP,
+                           dri2_surf->base.drawable, x, y, w, h, ~0);
+   reply = xcb_get_image_reply (dri2_dpy->conn, cookie, &error);
+   if (reply == NULL)
+      return;
+
+   if (error != NULL) {
+      _eglLog(_EGL_WARNING, "error in xcb_get_image");
+      free(error);
+   } else {
+      uint32_t bytes = xcb_get_image_data_length(reply);
+      uint8_t *idata = xcb_get_image_data(reply);
+      memcpy(data, idata, bytes);
+   }
+   free(reply);
+}
+
+static EGLBoolean
+dri2_x11_swrast_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
+{
+   struct dri2_egl_display *dri2_dpy  = dri2_egl_display(disp);
+   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
+
+   (dri2_dpy->core->swapBuffers) (dri2_surf->dri_drawable);
+   
+   return EGL_TRUE;
+}
+
+static EGLBoolean
+dri2_create_x11_swrast_screen(_EGLDisplay *disp)
+{
+   const __DRIextension **extensions;
+   struct dri2_egl_display *dri2_dpy;
+   unsigned int api_mask;
+
+   dri2_dpy = disp->DriverData;
+
+   dri2_dpy->dri_screen =
+      dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
+                                           &dri2_dpy->driver_configs, disp);
+
+   if (dri2_dpy->dri_screen == NULL) {
+      _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
+      return EGL_FALSE;
+   }
+
+   extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
+   if (!dri2_bind_extensions((struct dri2_egl_display *)dri2_dpy, swrast_core_extensions, extensions)) 
+      goto cleanup_dri_screen;
+
+   if (dri2_dpy->swrast->base.version >= 2)
+      api_mask = 1 << __DRI_API_OPENGL | 1 << __DRI_API_GLES | 1 << __DRI_API_GLES2;
+   else
+      api_mask = 1 << __DRI_API_OPENGL;
+
+   disp->ClientAPIsMask = 0;
+   if (api_mask & (1 <<__DRI_API_OPENGL))
+      disp->ClientAPIsMask |= EGL_OPENGL_BIT;
+   if (api_mask & (1 <<__DRI_API_GLES))
+      disp->ClientAPIsMask |= EGL_OPENGL_ES_BIT;
+   if (api_mask & (1 << __DRI_API_GLES2))
+      disp->ClientAPIsMask |= EGL_OPENGL_ES2_BIT;
+
+   if (dri2_dpy->swrast->base.version >= 2) {
+      disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
+      disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
+      disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
+   }
+
+   return EGL_TRUE;
+
+cleanup_dri_screen:
+   dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
+
+   return EGL_FALSE;
+}
+
+/**
+ * Called via eglTerminate(), drv->API.Terminate().
+ */
+static EGLBoolean
+dri2_x11_swrast_terminate(_EGLDriver *drv, _EGLDisplay *disp)
+{
+   struct dri2_egl_x11_display *dri2_dpy = dri2_egl_x11_display(disp);
+
+   _eglReleaseDisplayResources(drv, disp);
+   _eglCleanupDisplay(disp);
+
+   dri2_dpy->base.core->destroyScreen(dri2_dpy->base.dri_screen);
+   dlclose(dri2_dpy->base.driver);
+   if (disp->PlatformDisplay == NULL)
+      xcb_disconnect(dri2_dpy->conn);
+   free(dri2_dpy);
+   disp->DriverData = NULL;
+
+   return EGL_TRUE;
+}
+
+static _EGLSurface *
+dri2_x11_swrast_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
+                              _EGLConfig *conf, EGLNativeWindowType window,
+                              const EGLint *attrib_list)
+{
+   struct dri2_egl_x11_display *dri2_dpy = dri2_egl_x11_display(disp);
+   struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
+   struct dri2_egl_x11_swrast_surface *dri2_surf;
+   xcb_get_geometry_cookie_t cookie;
+   xcb_get_geometry_reply_t *reply;
+   xcb_screen_iterator_t s;
+   xcb_generic_error_t *error;
+
+   dri2_surf = malloc(sizeof *dri2_surf);
+   if (!dri2_surf) {
+      _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
+      return NULL;
+   }
+   
+   if (!_eglInitSurface(&dri2_surf->base.base.base, disp, type, conf, attrib_list))
+      goto cleanup_surf;
+
+   if (type == EGL_PBUFFER_BIT) {
+      dri2_surf->base.drawable = xcb_generate_id(dri2_dpy->conn);
+      s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
+      xcb_create_pixmap(dri2_dpy->conn,
+                        _eglGetConfigKey(conf, EGL_BUFFER_SIZE),
+                        dri2_surf->base.drawable, s.data->root,
+                        dri2_surf->base.base.base.Width, dri2_surf->base.base.base.Height);
+   } else {
+      dri2_surf->base.drawable = window;
+   }
+
+   dri2_surf->base.base.dri_drawable = 
+      (*dri2_dpy->base.swrast->createNewDrawable) (dri2_dpy->base.dri_screen,
+                                            dri2_conf->dri_config, dri2_surf);
+
+   if (dri2_surf->base.base.dri_drawable == NULL) {
+      _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
+      goto cleanup_pixmap;
+   }
+
+   swrastCreateDrawable(dri2_dpy, dri2_surf, _eglGetConfigKey(conf, EGL_DEPTH_SIZE));
+
+   if (type != EGL_PBUFFER_BIT) {
+      cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->base.drawable);
+      reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error);
+      if (reply == NULL || error != NULL) {
+         _eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
+         free(error);
+         goto cleanup_dri_drawable;
+      }
+
+      dri2_surf->base.base.base.Width = reply->width;
+      dri2_surf->base.base.base.Height = reply->height;
+      free(reply);
+   }
+
+   return &dri2_surf->base.base.base;
+
+ cleanup_dri_drawable:
+   dri2_dpy->base.core->destroyDrawable(dri2_surf->base.base.dri_drawable);
+ cleanup_pixmap:
+   if (type == EGL_PBUFFER_BIT)
+      xcb_free_pixmap(dri2_dpy->conn, dri2_surf->base.drawable);
+ cleanup_surf:
+   free(dri2_surf);
+
+   return NULL;
+}
+
+/**
+ * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
+ */
+static _EGLSurface *
+dri2_x11_swrast_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
+                                      _EGLConfig *conf, EGLNativeWindowType window,
+                                      const EGLint *attrib_list)
+{
+   return dri2_x11_swrast_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
+                              window, attrib_list);
+}
+
+static _EGLSurface *
+dri2_x11_swrast_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
+                                      _EGLConfig *conf, EGLNativePixmapType pixmap,
+                                      const EGLint *attrib_list)
+{
+   return dri2_x11_swrast_create_surface(drv, disp, EGL_PIXMAP_BIT, conf,
+                              pixmap, attrib_list);
+}
+
+static _EGLSurface *
+dri2_x11_swrast_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
+                                       _EGLConfig *conf, const EGLint *attrib_list)
+{
+   return dri2_x11_swrast_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
+                              XCB_WINDOW_NONE, attrib_list);
+}
+
+static EGLBoolean
+dri2_x11_swrast_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
+{
+   struct dri2_egl_x11_display *dri2_dpy = dri2_egl_x11_display(disp);
+   struct dri2_egl_x11_swrast_surface *dri2_surf = dri2_egl_x11_swrast_surface(surf);
+
+   if (_eglIsSurfaceBound(surf))
+      return EGL_TRUE;
+
+   (*dri2_dpy->base.core->destroyDrawable)(dri2_surf->base.base.dri_drawable);
+
+   swrastDestroyDrawable(dri2_dpy, dri2_surf);
+
+   if (surf->Type == EGL_PBUFFER_BIT)
+      xcb_free_pixmap (dri2_dpy->conn, dri2_surf->base.drawable);
+
+   free(surf);
+
+   return EGL_TRUE;
+}
+
+static void
+dri2_x11_swrast_initialize_driver(_EGLDriver *drv)
+{
+   struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
+
+   dri2_drv->base.API.Terminate = dri2_x11_swrast_terminate;
+   dri2_drv->base.API.CreateWindowSurface = dri2_x11_swrast_create_window_surface;
+   dri2_drv->base.API.CreatePixmapSurface = dri2_x11_swrast_create_pixmap_surface;
+   dri2_drv->base.API.CreatePbufferSurface = dri2_x11_swrast_create_pbuffer_surface;
+   dri2_drv->base.API.DestroySurface = dri2_x11_swrast_destroy_surface;
+   dri2_drv->base.API.SwapBuffers = dri2_x11_swrast_swap_buffers;
+   dri2_drv->base.API.CopyBuffers = dri2_copy_buffers;
+
+/**
+ *  Currently un-supported functions:
+ *     SwapBuffersRegionNOK
+ *     CreateImageKHR, DestroyImageKHR, CreateDRMImageMESA, ExportDRMImageMESA
+*/
+
+   dri2_drv->base.Name = "DRI2_X11_SWRAST";
+}
+
+EGLBoolean
+dri2_initialize_x11_swrast(_EGLDriver *drv, _EGLDisplay *disp,
+                    EGLint *major, EGLint *minor)
+{
+   struct dri2_egl_x11_display *dri2_dpy;
+   const __DRIextension **extensions;
+
+   dri2_dpy = malloc(sizeof *dri2_dpy);
+   if (!dri2_dpy)
+      return _eglError(EGL_BAD_ALLOC, "eglInitialize");
+
+   memset(dri2_dpy, 0, sizeof *dri2_dpy);
+
+   disp->DriverData = (void *) dri2_dpy;
+   if (disp->PlatformDisplay == NULL) {
+      dri2_dpy->conn = xcb_connect(0, 0);
+   } else {
+      dri2_dpy->conn = XGetXCBConnection((Display *) disp->PlatformDisplay);
+   }
+
+   if (xcb_connection_has_error(dri2_dpy->conn)) {
+      _eglLog(_EGL_WARNING, "DRI2: xcb_connect failed");
+      goto cleanup_dpy;
+   }
+
+   dri2_dpy->base.driver_name = dri2_strndup("swrast", strlen("swrast"));
+
+   extensions = dri2_load_driver(disp);
+
+   if (extensions == NULL)
+      goto cleanup_conn;
+
+   if (!dri2_bind_extensions((struct dri2_egl_display *)dri2_dpy, 
+                             swrast_driver_extensions, extensions)) {
+      goto cleanup_driver;
+   }
+
+   dri2_dpy->base.swrast_loader_extension.base.name = __DRI_SWRAST_LOADER;
+   dri2_dpy->base.swrast_loader_extension.base.version = __DRI_SWRAST_LOADER_VERSION;
+   dri2_dpy->base.swrast_loader_extension.getDrawableInfo = swrastGetDrawableInfo;
+   dri2_dpy->base.swrast_loader_extension.putImage = swrastPutImage;
+   dri2_dpy->base.swrast_loader_extension.getImage = swrastGetImage;
+
+   dri2_dpy->base.extensions[0] = &dri2_dpy->base.swrast_loader_extension.base;
+   dri2_dpy->base.extensions[1] = NULL;
+   dri2_dpy->base.extensions[2] = NULL;
+
+   if (!dri2_create_x11_swrast_screen(disp))
+      goto cleanup_driver;
+
+   if (dri2_dpy->conn) {
+      if (!dri2_add_configs_for_visuals(dri2_dpy, disp, 0))
+         goto cleanup_configs;
+   }
+
+   /* we're supporting EGL 1.4 */
+   *major = 1;
+   *minor = 4;
+
+   dri2_x11_swrast_initialize_driver(drv);
+
+   return EGL_TRUE;
+
+ cleanup_configs:
+   _eglCleanupDisplay(disp);
+   dri2_dpy->base.core->destroyScreen(dri2_dpy->base.dri_screen);
+ cleanup_driver:
+   dlclose(dri2_dpy->base.driver);
+ cleanup_conn:
+   if (disp->PlatformDisplay == NULL)
+      xcb_disconnect(dri2_dpy->conn);
+ cleanup_dpy:
+   free(dri2_dpy);
+
+   return EGL_FALSE;
+}
+
-- 
1.7.2.2



More information about the mesa-dev mailing list