st/egl_g3d: Rename to st/egl.

Simply the name to egl.

17 files changed, 5457 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/egl/Makefile b/src/gallium/state_trackers/egl/Makefile
new file mode 100644
index 00000000000..b696f2fae93
--- /dev/null
+++ b/src/gallium/state_trackers/egl/Makefile
@@ -0,0 +1,75 @@
+TOP = ../../../..
+include $(TOP)/configs/current
+
+common_INCLUDES = \
+	-I. \
+	-I$(TOP)/src/gallium/include \
+	-I$(TOP)/src/gallium/auxiliary \
+	-I$(TOP)/src/egl/main \
+	-I$(TOP)/include
+
+common_SOURCES = $(wildcard common/*.c)
+common_OBJECTS = $(common_SOURCES:.c=.o)
+
+
+x11_INCLUDES = \
+	-I$(TOP)/src/gallium/drivers \
+	-I$(TOP)/src/glx/x11 \
+	-I$(TOP)/src/egl/drivers/xdri \
+	-I$(TOP)/src/mesa \
+	$(shell pkg-config --cflags-only-I libdrm)
+
+x11_SOURCES = $(wildcard x11/*.c) \
+	      $(TOP)/src/glx/x11/dri2.c \
+	      $(TOP)/src/egl/drivers/xdri/glxinit.c
+x11_OBJECTS = $(x11_SOURCES:.c=.o)
+
+
+kms_INCLUDES = $(shell pkg-config --cflags-only-I libdrm)
+kms_SOURCES = $(wildcard kms/*.c)
+kms_OBJECTS = $(kms_SOURCES:.c=.o)
+
+
+ALL_INCLUDES = $(common_INCLUDES) $(x11_INCLUDES) $(kms_INCLUDES)
+ALL_SOURCES = $(common_SOURCES) $(x11_SOURCES) $(kms_SOURCES)
+ALL_OBJECTS = $(common_OBJECTS) $(x11_OBJECTS) $(kms_OBJECTS)
+
+##### TARGETS #####
+
+EGL_DISPLAYS_MODS = $(foreach dpy, $(EGL_DISPLAYS), libegl$(dpy).a)
+
+default: depend $(EGL_DISPLAYS_MODS)
+
+
+libeglx11.a: $(x11_OBJECTS) $(common_OBJECTS) Makefile
+	$(MKLIB) -o eglx11 -static $(x11_OBJECTS) $(common_OBJECTS)
+
+libeglkms.a: $(kms_OBJECTS) $(common_OBJECTS) Makefile
+	$(MKLIB) -o eglkms -static $(kms_OBJECTS) $(common_OBJECTS)
+
+depend: 
+	rm -f depend
+	touch depend
+	$(MKDEP) $(MKDEP_OPTIONS) $(ALL_INCLUDES) $(ALL_SOURCES) 2> /dev/null
+
+clean:
+	rm -f $(ALL_OBJECTS)
+	rm -f $(EGL_DISPLAYS_MODS)
+	rm -f depend depend.bak
+
+# Dummy target
+install:
+	@echo -n ""
+
+##### RULES #####
+
+$(common_OBJECTS): %.o: %.c
+	$(CC) -c $(common_INCLUDES) $(DEFINES) $(CFLAGS) $< -o $@
+
+$(x11_OBJECTS): %.o: %.c
+	$(CC) -c $(common_INCLUDES) $(x11_INCLUDES) $(DEFINES) $(CFLAGS) $< -o $@
+
+$(kms_OBJECTS): %.o: %.c
+	$(CC) -c $(common_INCLUDES) $(kms_INCLUDES) $(DEFINES) $(CFLAGS) $< -o $@
+
+sinclude depend
diff --git a/src/gallium/state_trackers/egl/common/egl_g3d.c b/src/gallium/state_trackers/egl/common/egl_g3d.c
new file mode 100644
index 00000000000..2ac6215646c
--- /dev/null
+++ b/src/gallium/state_trackers/egl/common/egl_g3d.c
@@ -0,0 +1,1336 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2009-2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#include <assert.h>
+#include <string.h>
+#include "pipe/p_screen.h"
+#include "util/u_memory.h"
+#include "util/u_rect.h"
+#include "egldriver.h"
+#include "eglcurrent.h"
+#include "eglconfigutil.h"
+#include "egllog.h"
+
+#include "native.h"
+#include "egl_g3d.h"
+#include "egl_st.h"
+
+/**
+ * Validate the draw/read surfaces of the context.
+ */
+static void
+egl_g3d_validate_context(_EGLDisplay *dpy, _EGLContext *ctx)
+{
+   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
+   struct pipe_screen *screen = gdpy->native->screen;
+   struct egl_g3d_context *gctx = egl_g3d_context(ctx);
+   const uint st_att_map[NUM_NATIVE_ATTACHMENTS] = {
+      ST_SURFACE_FRONT_LEFT,
+      ST_SURFACE_BACK_LEFT,
+      ST_SURFACE_FRONT_RIGHT,
+      ST_SURFACE_BACK_RIGHT,
+   };
+   EGLint num_surfaces, s;
+
+   /* validate draw and/or read buffers */
+   num_surfaces = (gctx->base.ReadSurface == gctx->base.DrawSurface) ? 1 : 2;
+   for (s = 0; s < num_surfaces; s++) {
+      struct pipe_texture *textures[NUM_NATIVE_ATTACHMENTS];
+      struct egl_g3d_surface *gsurf;
+      struct egl_g3d_buffer *gbuf;
+      EGLint att;
+
+      if (s == 0) {
+         gsurf = egl_g3d_surface(gctx->base.DrawSurface);
+         gbuf = &gctx->draw;
+      }
+      else {
+         gsurf = egl_g3d_surface(gctx->base.ReadSurface);
+         gbuf = &gctx->read;
+      }
+
+      if (!gctx->force_validate) {
+         unsigned int seq_num;
+
+         gsurf->native->validate(gsurf->native, gbuf->attachment_mask,
+               &seq_num, NULL, NULL, NULL);
+         /* skip validation */
+         if (gsurf->sequence_number == seq_num)
+            continue;
+      }
+
+      pipe_surface_reference(&gsurf->render_surface, NULL);
+      memset(textures, 0, sizeof(textures));
+
+      gsurf->native->validate(gsurf->native, gbuf->attachment_mask,
+            &gsurf->sequence_number, textures,
+            &gsurf->base.Width, &gsurf->base.Height);
+      for (att = 0; att < NUM_NATIVE_ATTACHMENTS; att++) {
+         struct pipe_texture *pt = textures[att];
+         struct pipe_surface *ps;
+
+         if (native_attachment_mask_test(gbuf->attachment_mask, att) && pt) {
+            ps = screen->get_tex_surface(screen, pt, 0, 0, 0,
+                  PIPE_BUFFER_USAGE_GPU_READ |
+                  PIPE_BUFFER_USAGE_GPU_WRITE);
+            gctx->stapi->st_set_framebuffer_surface(gbuf->st_fb,
+                  st_att_map[att], ps);
+
+            if (gsurf->render_att == att)
+               pipe_surface_reference(&gsurf->render_surface, ps);
+
+            pipe_surface_reference(&ps, NULL);
+            pipe_texture_reference(&pt, NULL);
+         }
+      }
+
+      gctx->stapi->st_resize_framebuffer(gbuf->st_fb,
+            gsurf->base.Width, gsurf->base.Height);
+   }
+
+   gctx->force_validate = EGL_FALSE;
+
+}
+
+/**
+ * Create a st_framebuffer.
+ */
+static struct st_framebuffer *
+create_framebuffer(_EGLContext *ctx, _EGLSurface *surf)
+{
+   struct egl_g3d_context *gctx = egl_g3d_context(ctx);
+   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
+   struct egl_g3d_config *gconf = egl_g3d_config(gsurf->base.Config);
+
+   return gctx->stapi->st_create_framebuffer(&gconf->native->mode,
+         gconf->native->color_format, gconf->native->depth_format,
+         gconf->native->stencil_format,
+         gsurf->base.Width, gsurf->base.Height, &gsurf->base);
+}
+
+/**
+ * Update the attachments of draw/read surfaces.
+ */
+static void
+egl_g3d_route_context(_EGLDisplay *dpy, _EGLContext *ctx)
+{
+   struct egl_g3d_context *gctx = egl_g3d_context(ctx);
+   EGLint s;
+
+   /* route draw and read buffers' attachments */
+   for (s = 0; s < 2; s++) {
+      struct egl_g3d_surface *gsurf;
+      struct egl_g3d_buffer *gbuf;
+
+      if (s == 0) {
+         gsurf = egl_g3d_surface(gctx->base.DrawSurface);
+         gbuf = &gctx->draw;
+      }
+      else {
+         gsurf = egl_g3d_surface(gctx->base.ReadSurface);
+         gbuf = &gctx->read;
+      }
+
+      gbuf->attachment_mask = (1 << gsurf->render_att);
+
+      /* FIXME OpenGL defaults to draw the front or back buffer when the
+       * context is single-buffered or double-buffered respectively.  In EGL,
+       * however, the buffer to be drawn is determined by the surface, instead
+       * of the context.  As a result, rendering to a pixmap surface with a
+       * double-buffered context does not work as expected.
+       *
+       * gctx->stapi->st_draw_front_buffer(gctx->st_ctx, natt ==
+       *    NATIVE_ATTACHMENT_FRONT_LEFT);
+       */
+
+      /*
+       * FIXME If the back buffer is asked for here, and the front buffer is
+       * later needed by the client API (e.g. glDrawBuffer is called to draw
+       * the front buffer), it will create a new pipe texture and draw there.
+       * One fix is to ask for both buffers here, but it would be a waste if
+       * the front buffer is never used.  A better fix is to add a callback to
+       * the pipe screen with context private (just like flush_frontbuffer).
+       */
+   }
+}
+
+/**
+ * Reallocate the context's framebuffers after draw/read surfaces change.
+ */
+static EGLBoolean
+egl_g3d_realloc_context(_EGLDisplay *dpy, _EGLContext *ctx)
+{
+   struct egl_g3d_context *gctx = egl_g3d_context(ctx);
+   struct egl_g3d_surface *gdraw = egl_g3d_surface(gctx->base.DrawSurface);
+   struct egl_g3d_surface *gread = egl_g3d_surface(gctx->base.ReadSurface);
+
+   /* unreference the old framebuffers */
+   if (gctx->draw.st_fb) {
+      EGLBoolean is_equal = (gctx->draw.st_fb == gctx->read.st_fb);
+      void *priv;
+
+      priv = gctx->stapi->st_framebuffer_private(gctx->draw.st_fb);
+      if (!gdraw || priv != (void *) &gdraw->base) {
+         gctx->stapi->st_unreference_framebuffer(gctx->draw.st_fb);
+         gctx->draw.st_fb = NULL;
+         gctx->draw.attachment_mask = 0x0;
+      }
+
+      if (is_equal) {
+         gctx->read.st_fb = NULL;
+         gctx->draw.attachment_mask = 0x0;
+      }
+      else {
+         priv = gctx->stapi->st_framebuffer_private(gctx->read.st_fb);
+         if (!gread || priv != (void *) &gread->base) {
+            gctx->stapi->st_unreference_framebuffer(gctx->read.st_fb);
+            gctx->read.st_fb = NULL;
+            gctx->draw.attachment_mask = 0x0;
+         }
+      }
+   }
+
+   if (!gdraw)
+      return EGL_TRUE;
+
+   /* create the draw fb */
+   if (!gctx->draw.st_fb) {
+      gctx->draw.st_fb = create_framebuffer(&gctx->base, &gdraw->base);
+      if (!gctx->draw.st_fb)
+         return EGL_FALSE;
+   }
+
+   /* create the read fb */
+   if (!gctx->read.st_fb) {
+      if (gread != gdraw) {
+         gctx->read.st_fb = create_framebuffer(&gctx->base, &gread->base);
+         if (!gctx->read.st_fb) {
+            gctx->stapi->st_unreference_framebuffer(gctx->draw.st_fb);
+            gctx->draw.st_fb = NULL;
+            return EGL_FALSE;
+         }
+      }
+      else {
+         /* there is no st_reference_framebuffer... */
+         gctx->read.st_fb = gctx->draw.st_fb;
+      }
+   }
+
+   egl_g3d_route_context(dpy, &gctx->base);
+   gctx->force_validate = EGL_TRUE;
+
+   return EGL_TRUE;
+}
+
+/**
+ * Return the current context of the given API.
+ */
+static struct egl_g3d_context *
+egl_g3d_get_current_context(EGLint api)
+{
+   _EGLThreadInfo *t = _eglGetCurrentThread();
+   EGLint api_index = _eglConvertApiToIndex(api);
+   return egl_g3d_context(t->CurrentContexts[api_index]);
+}
+
+/**
+ * Return the state tracker for the given context.
+ */
+static const struct egl_g3d_st *
+egl_g3d_choose_st(_EGLDriver *drv, _EGLContext *ctx)
+{
+   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
+   const struct egl_g3d_st *stapi;
+   EGLint idx = -1;
+
+   switch (ctx->ClientAPI) {
+   case EGL_OPENGL_ES_API:
+      switch (ctx->ClientVersion) {
+      case 1:
+         idx = EGL_G3D_ST_OPENGL_ES;
+         break;
+      case 2:
+         idx = EGL_G3D_ST_OPENGL_ES2;
+         break;
+      default:
+         _eglLog(_EGL_WARNING, "unknown client version %d",
+               ctx->ClientVersion);
+         break;
+      }
+      break;
+   case EGL_OPENVG_API:
+      idx = EGL_G3D_ST_OPENVG;
+      break;
+   case EGL_OPENGL_API:
+      idx = EGL_G3D_ST_OPENGL;
+      break;
+   default:
+      _eglLog(_EGL_WARNING, "unknown client API 0x%04x", ctx->ClientAPI);
+      break;
+   }
+
+   stapi = (idx >= 0) ? gdrv->stapis[idx] : NULL;
+   return stapi;
+}
+
+/**
+ * Initialize the state trackers.
+ */
+static void
+egl_g3d_init_st(_EGLDriver *drv)
+{
+   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
+   EGLint i;
+
+   /* already initialized */
+   if (gdrv->api_mask)
+      return;
+
+   for (i = 0; i < NUM_EGL_G3D_STS; i++) {
+      gdrv->stapis[i] = egl_g3d_get_st(i);
+      if (gdrv->stapis[i])
+         gdrv->api_mask |= gdrv->stapis[i]->api_bit;
+   }
+
+   if (gdrv->api_mask)
+      _eglLog(_EGL_DEBUG, "Driver API mask: 0x%x", gdrv->api_mask);
+   else
+      _eglLog(_EGL_WARNING, "No supported client API");
+}
+
+/**
+ * Get the probe object of the display.
+ *
+ * Note that this function may be called before the display is initialized.
+ */
+static struct native_probe *
+egl_g3d_get_probe(_EGLDriver *drv, _EGLDisplay *dpy)
+{
+   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
+   struct native_probe *nprobe;
+
+   nprobe = (struct native_probe *) _eglGetProbeCache(gdrv->probe_key);
+   if (!nprobe || nprobe->display != dpy->NativeDisplay) {
+      if (nprobe)
+         nprobe->destroy(nprobe);
+      nprobe = native_create_probe(dpy->NativeDisplay);
+      _eglSetProbeCache(gdrv->probe_key, (void *) nprobe);
+   }
+
+   return nprobe;
+}
+
+/**
+ * Destroy the probe object of the display.  The display may be NULL.
+ *
+ * Note that this function may be called before the display is initialized.
+ */
+static void
+egl_g3d_destroy_probe(_EGLDriver *drv, _EGLDisplay *dpy)
+{
+   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
+   struct native_probe *nprobe;
+
+   nprobe = (struct native_probe *) _eglGetProbeCache(gdrv->probe_key);
+   if (nprobe && (!dpy || nprobe->display == dpy->NativeDisplay)) {
+      nprobe->destroy(nprobe);
+      _eglSetProbeCache(gdrv->probe_key, NULL);
+   }
+}
+
+/**
+ * Return an API mask that consists of the state trackers that supports the
+ * given mode.
+ *
+ * FIXME add st_is_mode_supported()?
+ */
+static EGLint
+get_mode_api_mask(const __GLcontextModes *mode, EGLint api_mask)
+{
+   EGLint check;
+
+   /* OpenGL ES 1.x and 2.x are checked together */
+   check = EGL_OPENGL_ES_BIT | EGL_OPENGL_ES2_BIT;
+   if (api_mask & check) {
+      /* this is required by EGL, not by OpenGL ES */
+      if (mode->drawableType & GLX_WINDOW_BIT && !mode->doubleBufferMode)
+         api_mask &= ~check;
+   }
+
+   check = EGL_OPENVG_BIT;
+   if (api_mask & check) {
+      /* vega st needs the depth/stencil rb */
+      if (!mode->depthBits && !mode->stencilBits)
+         api_mask &= ~check;
+   }
+
+   return api_mask;
+}
+
+#ifdef EGL_MESA_screen_surface
+
+static void
+egl_g3d_add_screens(_EGLDriver *drv, _EGLDisplay *dpy)
+{
+   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
+   const struct native_connector **native_connectors;
+   EGLint num_connectors, i;
+
+   native_connectors =
+      gdpy->native->modeset->get_connectors(gdpy->native, &num_connectors, NULL);
+   if (!num_connectors) {
+      if (native_connectors)
+         free(native_connectors);
+      return;
+   }
+
+   for (i = 0; i < num_connectors; i++) {
+      const struct native_connector *nconn = native_connectors[i];
+      struct egl_g3d_screen *gscr;
+      const struct native_mode **native_modes;
+      EGLint num_modes, j;
+
+      /* TODO support for hotplug */
+      native_modes =
+         gdpy->native->modeset->get_modes(gdpy->native, nconn, &num_modes);
+      if (!num_modes) {
+         if (native_modes)
+            free(native_modes);
+         continue;
+      }
+
+      gscr = CALLOC_STRUCT(egl_g3d_screen);
+      if (!gscr) {
+         free(native_modes);
+         continue;
+      }
+
+      _eglInitScreen(&gscr->base);
+
+      for (j = 0; j < num_modes; j++) {
+         const struct native_mode *nmode = native_modes[j];
+         _EGLMode *mode;
+
+         mode = _eglAddNewMode(&gscr->base, nmode->width, nmode->height,
+               nmode->refresh_rate, nmode->desc);
+         if (!mode)
+            break;
+         /* gscr->native_modes and gscr->base.Modes should be consistent */
+         assert(mode == &gscr->base.Modes[j]);
+      }
+
+      gscr->native = nconn;
+      gscr->native_modes = native_modes;
+
+      _eglAddScreen(dpy, &gscr->base);
+   }
+
+   free(native_connectors);
+}
+
+#endif /* EGL_MESA_screen_surface */
+
+/**
+ * Add configs to display and return the next config ID.
+ */
+static EGLint
+egl_g3d_add_configs(_EGLDriver *drv, _EGLDisplay *dpy, EGLint id)
+{
+   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
+   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
+   const struct native_config **native_configs;
+   int num_configs, i;
+
+   native_configs = gdpy->native->get_configs(gdpy->native,
+         &num_configs);
+   if (!num_configs) {
+      if (native_configs)
+         free(native_configs);
+      return id;
+   }
+
+   for (i = 0; i < num_configs; i++) {
+      EGLint api_mask;
+      struct egl_g3d_config *gconf;
+      EGLBoolean valid;
+
+      api_mask = get_mode_api_mask(&native_configs[i]->mode, gdrv->api_mask);
+      if (!api_mask) {
+         _eglLog(_EGL_DEBUG, "no state tracker supports config 0x%x",
+               native_configs[i]->mode.visualID);
+         continue;
+      }
+
+      gconf = CALLOC_STRUCT(egl_g3d_config);
+      if (!gconf)
+         continue;
+
+      _eglInitConfig(&gconf->base, id);
+      valid = _eglConfigFromContextModesRec(&gconf->base,
+            &native_configs[i]->mode, api_mask, api_mask);
+      if (valid) {
+#ifdef EGL_MESA_screen_surface
+         /* check if scanout surface bit is set */
+         if (native_configs[i]->scanout_bit) {
+            EGLint val = GET_CONFIG_ATTRIB(&gconf->base, EGL_SURFACE_TYPE);
+            val |= EGL_SCREEN_BIT_MESA;
+            SET_CONFIG_ATTRIB(&gconf->base, EGL_SURFACE_TYPE, val);
+         }
+#endif
+         valid = _eglValidateConfig(&gconf->base, EGL_FALSE);
+      }
+      if (!valid) {
+         _eglLog(_EGL_DEBUG, "skip invalid config 0x%x",
+               native_configs[i]->mode.visualID);
+         free(gconf);
+         continue;
+      }
+
+      gconf->native = native_configs[i];
+      _eglAddConfig(dpy, &gconf->base);
+      id++;
+   }
+
+   free(native_configs);
+   return id;
+}
+
+/**
+ * Flush the front buffer of the context's draw surface.
+ */
+static void
+egl_g3d_flush_frontbuffer(struct pipe_screen *screen,
+                          struct pipe_surface *surf, void *context_private)
+{
+   struct egl_g3d_context *gctx = egl_g3d_context(context_private);
+   struct egl_g3d_surface *gsurf = egl_g3d_surface(gctx->base.DrawSurface);
+
+   if (gsurf)
+      gsurf->native->flush_frontbuffer(gsurf->native);
+}
+
+/**
+ * Re-validate the context.
+ */
+static void
+egl_g3d_update_buffer(struct pipe_screen *screen, void *context_private)
+{
+   struct egl_g3d_context *gctx = egl_g3d_context(context_private);
+
+   /**
+    * It is likely that the surface has changed when this function is called.
+    * Set force_validate to skip an unnecessary check.
+    */
+   gctx->force_validate = EGL_TRUE;
+   egl_g3d_validate_context(gctx->base.Display, &gctx->base);
+}
+
+static EGLBoolean
+egl_g3d_terminate(_EGLDriver *drv, _EGLDisplay *dpy)
+{
+   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
+   EGLint i;
+
+   _eglReleaseDisplayResources(drv, dpy);
+   _eglCleanupDisplay(dpy);
+
+   if (dpy->Screens) {
+      for (i = 0; i < dpy->NumScreens; i++) {
+         struct egl_g3d_screen *gscr = egl_g3d_screen(dpy->Screens[i]);
+         free(gscr->native_modes);
+         free(gscr);
+      }
+      free(dpy->Screens);
+   }
+
+   if (gdpy->native)
+      gdpy->native->destroy(gdpy->native);
+
+   free(gdpy);
+   dpy->DriverData = NULL;
+
+   return EGL_TRUE;
+}
+
+static EGLBoolean
+egl_g3d_initialize(_EGLDriver *drv, _EGLDisplay *dpy,
+                   EGLint *major, EGLint *minor)
+{
+   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
+   struct egl_g3d_display *gdpy;
+
+   /* the probe object is unlikely to be needed again */
+   egl_g3d_destroy_probe(drv, dpy);
+
+   gdpy = CALLOC_STRUCT(egl_g3d_display);
+   if (!gdpy) {
+      _eglError(EGL_BAD_ALLOC, "eglInitialize");
+      goto fail;
+   }
+   dpy->DriverData = gdpy;
+
+   gdpy->native = native_create_display(dpy->NativeDisplay);
+   if (!gdpy->native) {
+      _eglError(EGL_NOT_INITIALIZED, "eglInitialize(no usable display)");
+      goto fail;
+   }
+
+   gdpy->native->screen->flush_frontbuffer = egl_g3d_flush_frontbuffer;
+   gdpy->native->screen->update_buffer = egl_g3d_update_buffer;
+
+   egl_g3d_init_st(&gdrv->base);
+   dpy->ClientAPIsMask = gdrv->api_mask;
+
+   if (egl_g3d_add_configs(drv, dpy, 1) == 1) {
+      _eglError(EGL_NOT_INITIALIZED, "eglInitialize(unable to add configs)");
+      goto fail;
+   }
+
+#ifdef EGL_MESA_screen_surface
+   /* enable MESA_screen_surface */
+   if (gdpy->native->modeset) {
+      dpy->Extensions.MESA_screen_surface = EGL_TRUE;
+      egl_g3d_add_screens(drv, dpy);
+   }
+#endif
+
+   *major = 1;
+   *minor = 4;
+
+   return EGL_TRUE;
+
+fail:
+   if (gdpy)
+      egl_g3d_terminate(drv, dpy);
+   return EGL_FALSE;
+}
+
+static _EGLContext *
+egl_g3d_create_context(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
+                       _EGLContext *share, const EGLint *attribs)
+{
+   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
+   struct egl_g3d_context *gshare = egl_g3d_context(share);
+   struct egl_g3d_config *gconf = egl_g3d_config(conf);
+   struct egl_g3d_context *gctx;
+   const __GLcontextModes *mode;
+
+   gctx = CALLOC_STRUCT(egl_g3d_context);
+   if (!gctx) {
+      _eglError(EGL_BAD_ALLOC, "eglCreateContext");
+      return NULL;
+   }
+
+   if (!_eglInitContext(drv, &gctx->base, conf, attribs)) {
+      free(gctx);
+      return NULL;
+   }
+
+   gctx->stapi = egl_g3d_choose_st(drv, &gctx->base);
+   if (!gctx->stapi) {
+      free(gctx);
+      return NULL;
+   }
+
+   mode = &gconf->native->mode;
+   gctx->pipe =
+      gdpy->native->create_context(gdpy->native, (void *) &gctx->base);
+   if (!gctx->pipe) {
+      free(gctx);
+      return NULL;
+   }
+
+   gctx->st_ctx = gctx->stapi->st_create_context(gctx->pipe, mode,
+                        (gshare) ? gshare->st_ctx : NULL);
+   if (!gctx->st_ctx) {
+      gctx->pipe->destroy(gctx->pipe);
+      free(gctx);
+      return NULL;
+   }
+
+   return &gctx->base;
+}
+
+static EGLBoolean
+egl_g3d_destroy_context(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx)
+{
+   struct egl_g3d_context *gctx = egl_g3d_context(ctx);
+
+   if (_eglIsContextBound(&gctx->base))
+      return EGL_TRUE;
+
+   egl_g3d_realloc_context(dpy, &gctx->base);
+
+   /* it will destroy pipe context */
+   gctx->stapi->st_destroy_context(gctx->st_ctx);
+
+   free(gctx);
+
+   return EGL_TRUE;
+}
+
+static EGLBoolean
+init_surface_geometry(_EGLSurface *surf)
+{
+   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
+
+   return gsurf->native->validate(gsurf->native, 0x0,
+         &gsurf->sequence_number, NULL,
+         &gsurf->base.Width, &gsurf->base.Height);
+}
+
+static _EGLSurface *
+egl_g3d_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
+                              _EGLConfig *conf, EGLNativeWindowType win,
+                              const EGLint *attribs)
+{
+   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
+   struct egl_g3d_config *gconf = egl_g3d_config(conf);
+   struct egl_g3d_surface *gsurf;
+
+   gsurf = CALLOC_STRUCT(egl_g3d_surface);
+   if (!gsurf) {
+      _eglError(EGL_BAD_ALLOC, "eglCreateWindowSurface");
+      return NULL;
+   }
+
+   if (!_eglInitSurface(drv, &gsurf->base, EGL_WINDOW_BIT, conf, attribs)) {
+      free(gsurf);
+      return NULL;
+   }
+
+   gsurf->native =
+      gdpy->native->create_window_surface(gdpy->native, win, gconf->native);
+   if (!gsurf->native) {
+      free(gsurf);
+      return NULL;
+   }
+
+   if (!init_surface_geometry(&gsurf->base)) {
+      gsurf->native->destroy(gsurf->native);
+      free(gsurf);
+      return NULL;
+   }
+
+   gsurf->render_att = (gsurf->base.RenderBuffer == EGL_SINGLE_BUFFER ||
+                        !gconf->native->mode.doubleBufferMode) ?
+      NATIVE_ATTACHMENT_FRONT_LEFT : NATIVE_ATTACHMENT_BACK_LEFT;
+
+   return &gsurf->base;
+}
+
+static _EGLSurface *
+egl_g3d_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
+                              _EGLConfig *conf, EGLNativePixmapType pix,
+                              const EGLint *attribs)
+{
+   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
+   struct egl_g3d_config *gconf = egl_g3d_config(conf);
+   struct egl_g3d_surface *gsurf;
+
+   gsurf = CALLOC_STRUCT(egl_g3d_surface);
+   if (!gsurf) {
+      _eglError(EGL_BAD_ALLOC, "eglCreatePixmapSurface");
+      return NULL;
+   }
+
+   if (!_eglInitSurface(drv, &gsurf->base, EGL_PIXMAP_BIT, conf, attribs)) {
+      free(gsurf);
+      return NULL;
+   }
+
+   gsurf->native =
+      gdpy->native->create_pixmap_surface(gdpy->native, pix, gconf->native);
+   if (!gsurf->native) {
+      free(gsurf);
+      return NULL;
+   }
+
+   if (!init_surface_geometry(&gsurf->base)) {
+      gsurf->native->destroy(gsurf->native);
+      free(gsurf);
+      return NULL;
+   }
+
+   gsurf->render_att = NATIVE_ATTACHMENT_FRONT_LEFT;
+
+   return &gsurf->base;
+}
+
+static _EGLSurface *
+egl_g3d_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
+                               _EGLConfig *conf, const EGLint *attribs)
+{
+   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
+   struct egl_g3d_config *gconf = egl_g3d_config(conf);
+   struct egl_g3d_surface *gsurf;
+
+   gsurf = CALLOC_STRUCT(egl_g3d_surface);
+   if (!gsurf) {
+      _eglError(EGL_BAD_ALLOC, "eglCreatePbufferSurface");
+      return NULL;
+   }
+
+   if (!_eglInitSurface(drv, &gsurf->base, EGL_PBUFFER_BIT, conf, attribs)) {
+      free(gsurf);
+      return NULL;
+   }
+
+   gsurf->native =
+      gdpy->native->create_pbuffer_surface(gdpy->native, gconf->native,
+            gsurf->base.Width, gsurf->base.Height);
+   if (!gsurf->native) {
+      free(gsurf);
+      return NULL;
+   }
+
+   if (!init_surface_geometry(&gsurf->base)) {
+      gsurf->native->destroy(gsurf->native);
+      free(gsurf);
+      return NULL;
+   }
+
+   gsurf->render_att = (!gconf->native->mode.doubleBufferMode) ?
+      NATIVE_ATTACHMENT_FRONT_LEFT : NATIVE_ATTACHMENT_BACK_LEFT;
+
+   return &gsurf->base;
+}
+
+static EGLBoolean
+egl_g3d_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
+{
+   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
+
+   if (_eglIsSurfaceBound(&gsurf->base))
+         return EGL_TRUE;
+
+   pipe_surface_reference(&gsurf->render_surface, NULL);
+   gsurf->native->destroy(gsurf->native);
+   free(gsurf);
+   return EGL_TRUE;
+}
+
+static EGLBoolean
+egl_g3d_make_current(_EGLDriver *drv, _EGLDisplay *dpy,
+                     _EGLSurface *draw, _EGLSurface *read, _EGLContext *ctx)
+{
+   struct egl_g3d_context *gctx = egl_g3d_context(ctx);
+   struct egl_g3d_context *old_gctx;
+   EGLint api;
+   EGLBoolean ok = EGL_TRUE;
+
+   /* find the old context */
+   api = (gctx) ? gctx->base.ClientAPI : eglQueryAPI();
+   old_gctx = egl_g3d_get_current_context(api);
+   if (old_gctx && !_eglIsContextLinked(&old_gctx->base))
+         old_gctx = NULL;
+
+   if (!_eglMakeCurrent(drv, dpy, draw, read, ctx))
+      return EGL_FALSE;
+
+   if (old_gctx) {
+      /* flush old context */
+      old_gctx->stapi->st_flush(old_gctx->st_ctx,
+            PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL);
+
+      /*
+       * The old context is no longer current, and egl_g3d_realloc_context()
+       * should be called to destroy the framebuffers.  However, it is possible
+       * that it will be made current again with the same draw/read surfaces.
+       * It might be better to keep it around.
+       */
+   }
+
+   if (gctx) {
+      struct egl_g3d_surface *gdraw = egl_g3d_surface(draw);
+
+      ok = egl_g3d_realloc_context(dpy, &gctx->base);
+      if (ok) {
+         ok = gctx->stapi->st_make_current(gctx->st_ctx,
+               gctx->draw.st_fb, gctx->read.st_fb);
+         if (ok) {
+            egl_g3d_validate_context(dpy, &gctx->base);
+            if (gdraw->base.Type == EGL_WINDOW_BIT) {
+               gctx->base.WindowRenderBuffer =
+                  (gdraw->render_att == NATIVE_ATTACHMENT_FRONT_LEFT) ?
+                  EGL_SINGLE_BUFFER : EGL_BACK_BUFFER;
+            }
+         }
+      }
+   }
+   else if (old_gctx) {
+      ok = old_gctx->stapi->st_make_current(NULL, NULL, NULL);
+      old_gctx->base.WindowRenderBuffer = EGL_NONE;
+   }
+
+   return ok;
+}
+
+static EGLBoolean
+egl_g3d_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
+{
+   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
+   _EGLContext *ctx = _eglGetCurrentContext();
+   struct egl_g3d_context *gctx = NULL;
+
+   /* no-op for pixmap or pbuffer surface */
+   if (gsurf->base.Type == EGL_PIXMAP_BIT ||
+       gsurf->base.Type == EGL_PBUFFER_BIT)
+      return EGL_TRUE;
+
+   /* or when the surface is single-buffered */
+   if (gsurf->render_att == NATIVE_ATTACHMENT_FRONT_LEFT)
+      return EGL_TRUE;
+
+   if (ctx && ctx->DrawSurface == surf)
+      gctx = egl_g3d_context(ctx);
+
+   /* flush if the surface is current */
+   if (gctx)
+      gctx->stapi->st_notify_swapbuffers(gctx->draw.st_fb);
+
+   /*
+    * We drew on the back buffer, unless there was no back buffer.
+    * In that case, we drew on the front buffer.  Either case, we call
+    * swap_buffers.
+    */
+   if (!gsurf->native->swap_buffers(gsurf->native))
+      return EGL_FALSE;
+
+   if (gctx) {
+      struct egl_g3d_config *gconf = egl_g3d_config(gsurf->base.Config);
+
+      /* force validation if the swap method is not copy */
+      if (gconf->native->mode.swapMethod != GLX_SWAP_COPY_OML) {
+         gctx->force_validate = EGL_TRUE;
+         egl_g3d_validate_context(dpy, &gctx->base);
+      }
+   }
+
+   return EGL_TRUE;
+}
+
+/**
+ * Find a config that supports the pixmap.
+ */
+static _EGLConfig *
+find_pixmap_config(_EGLDisplay *dpy, EGLNativePixmapType pix)
+{
+   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
+   struct egl_g3d_config *gconf;
+   EGLint i;
+
+   for (i = 0; i < dpy->NumConfigs; i++) {
+      gconf = egl_g3d_config(dpy->Configs[i]);
+      if (gdpy->native->is_pixmap_supported(gdpy->native, pix, gconf->native))
+         break;
+   }
+
+   return (i < dpy->NumConfigs) ? &gconf->base : NULL;
+}
+
+/**
+ * Get the pipe surface of the given attachment of the native surface.
+ */
+static struct pipe_surface *
+get_pipe_surface(struct native_display *ndpy, struct native_surface *nsurf,
+                 enum native_attachment natt)
+{
+   struct pipe_texture *textures[NUM_NATIVE_ATTACHMENTS];
+   struct pipe_surface *psurf;
+
+   textures[natt] = NULL;
+   nsurf->validate(nsurf, 1 << natt, NULL, textures, NULL, NULL);
+   if (!textures[natt])
+      return NULL;
+
+   psurf = ndpy->screen->get_tex_surface(ndpy->screen, textures[natt],
+         0, 0, 0, PIPE_BUFFER_USAGE_CPU_WRITE);
+   pipe_texture_reference(&textures[natt], NULL);
+
+   return psurf;
+}
+
+static EGLBoolean
+egl_g3d_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
+                     NativePixmapType target)
+{
+   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
+   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
+   _EGLContext *ctx = _eglGetCurrentContext();
+   struct egl_g3d_config *gconf;
+   struct native_surface *nsurf;
+   struct pipe_screen *screen = gdpy->native->screen;
+   struct pipe_surface *psurf;
+
+   if (!gsurf->render_surface)
+      return EGL_TRUE;
+
+   gconf = egl_g3d_config(find_pixmap_config(dpy, target));
+   if (!gconf)
+      return _eglError(EGL_BAD_NATIVE_PIXMAP, "eglCopyBuffers");
+
+   nsurf = gdpy->native->create_pixmap_surface(gdpy->native,
+         target, gconf->native);
+   if (!nsurf)
+      return _eglError(EGL_BAD_NATIVE_PIXMAP, "eglCopyBuffers");
+
+   /* flush if the surface is current */
+   if (ctx && ctx->DrawSurface == &gsurf->base) {
+      struct egl_g3d_context *gctx = egl_g3d_context(ctx);
+      gctx->stapi->st_flush(gctx->st_ctx,
+            PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL);
+   }
+
+   psurf = get_pipe_surface(gdpy->native, nsurf, NATIVE_ATTACHMENT_FRONT_LEFT);
+   if (psurf) {
+      struct pipe_context pipe;
+
+      /**
+       * XXX This is hacky.  If we might allow the EGLDisplay to create a pipe
+       * context of its own and use the blitter context for this.
+       */
+      memset(&pipe, 0, sizeof(pipe));
+      pipe.screen = screen;
+
+      util_surface_copy(&pipe, FALSE, psurf, 0, 0,
+            gsurf->render_surface, 0, 0, psurf->width, psurf->height);
+
+      pipe_surface_reference(&psurf, NULL);
+      nsurf->flush_frontbuffer(nsurf);
+   }
+
+   nsurf->destroy(nsurf);
+
+   return EGL_TRUE;
+}
+
+static EGLBoolean
+egl_g3d_wait_client(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx)
+{
+   struct egl_g3d_context *gctx = egl_g3d_context(ctx);
+   gctx->stapi->st_finish(gctx->st_ctx);
+   return EGL_TRUE;
+}
+
+static EGLBoolean
+egl_g3d_wait_native(_EGLDriver *drv, _EGLDisplay *dpy, EGLint engine)
+{
+   _EGLSurface *surf = _eglGetCurrentSurface(EGL_DRAW);
+   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
+
+   if (engine != EGL_CORE_NATIVE_ENGINE)
+      return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
+
+   if (gsurf)
+      gsurf->native->wait(gsurf->native);
+
+   return EGL_TRUE;
+}
+
+static _EGLProc
+egl_g3d_get_proc_address(_EGLDriver *drv, const char *procname)
+{
+   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
+   _EGLProc proc;
+   EGLint i;
+
+   /* in case this is called before a display is initialized */
+   egl_g3d_init_st(&gdrv->base);
+
+   for (i = 0; i < NUM_EGL_G3D_STS; i++) {
+      const struct egl_g3d_st *stapi = gdrv->stapis[i];
+      if (stapi) {
+         proc = (_EGLProc) stapi->st_get_proc_address(procname);
+         if (proc)
+            return proc;
+      }
+   }
+
+   return (_EGLProc) NULL;
+}
+
+static EGLBoolean
+egl_g3d_bind_tex_image(_EGLDriver *drv, _EGLDisplay *dpy,
+                       _EGLSurface *surf, EGLint buffer)
+{
+   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
+   struct egl_g3d_context *gctx;
+   enum pipe_format target_format;
+   int target;
+
+   if (!gsurf || gsurf->base.Type != EGL_PBUFFER_BIT)
+      return _eglError(EGL_BAD_SURFACE, "eglBindTexImage");
+   if (buffer != EGL_BACK_BUFFER)
+      return _eglError(EGL_BAD_PARAMETER, "eglBindTexImage");
+   if (gsurf->base.BoundToTexture)
+      return _eglError(EGL_BAD_ACCESS, "eglBindTexImage");
+
+   switch (gsurf->base.TextureFormat) {
+   case EGL_TEXTURE_RGB:
+      target_format = PIPE_FORMAT_R8G8B8_UNORM;
+      break;
+   case EGL_TEXTURE_RGBA:
+      target_format = PIPE_FORMAT_A8R8G8B8_UNORM;
+      break;
+   default:
+      return _eglError(EGL_BAD_MATCH, "eglBindTexImage");
+   }
+
+   switch (gsurf->base.TextureTarget) {
+   case EGL_TEXTURE_2D:
+      target = ST_TEXTURE_2D;
+      break;
+   default:
+      return _eglError(EGL_BAD_MATCH, "eglBindTexImage");
+   }
+
+   /* flush properly if the surface is bound */
+   if (gsurf->base.Binding) {
+      gctx = egl_g3d_context(gsurf->base.Binding);
+      gctx->stapi->st_flush(gctx->st_ctx,
+            PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL);
+   }
+
+   /* XXX change to EGL_OPENGL_ES_API once OpenGL ES is merged */
+   gctx = egl_g3d_get_current_context(EGL_OPENGL_API);
+   if (gctx) {
+      if (!gsurf->render_surface)
+         return EGL_FALSE;
+
+      gctx->stapi->st_bind_texture_surface(gsurf->render_surface,
+            target, gsurf->base.MipmapLevel, target_format);
+      gsurf->base.BoundToTexture = EGL_TRUE;
+   }
+
+   return EGL_TRUE;
+}
+
+static EGLBoolean
+egl_g3d_release_tex_image(_EGLDriver *drv, _EGLDisplay *dpy,
+                          _EGLSurface *surf, EGLint buffer)
+{
+   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
+
+   if (!gsurf || gsurf->base.Type != EGL_PBUFFER_BIT ||
+       !gsurf->base.BoundToTexture)
+      return _eglError(EGL_BAD_SURFACE, "eglReleaseTexImage");
+   if (buffer != EGL_BACK_BUFFER)
+      return _eglError(EGL_BAD_PARAMETER, "eglReleaseTexImage");
+
+   if (gsurf->render_surface) {
+      _EGLThreadInfo *t = _eglGetCurrentThread();
+      /* XXX change to EGL_OPENGL_ES_API once OpenGL ES is merged */
+      struct egl_g3d_context *gctx = egl_g3d_context(
+            t->CurrentContexts[_eglConvertApiToIndex(EGL_OPENGL_API)]);
+
+      /* what if the context the surface binds to is no longer current? */
+      if (gctx)
+         gctx->stapi->st_unbind_texture_surface(gsurf->render_surface,
+               ST_TEXTURE_2D, gsurf->base.MipmapLevel);
+   }
+
+   gsurf->base.BoundToTexture = EGL_FALSE;
+
+   return EGL_TRUE;
+}
+
+#ifdef EGL_MESA_screen_surface
+
+static _EGLSurface *
+egl_g3d_create_screen_surface(_EGLDriver *drv, _EGLDisplay *dpy,
+                              _EGLConfig *conf, const EGLint *attribs)
+{
+   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
+   struct egl_g3d_config *gconf = egl_g3d_config(conf);
+   struct egl_g3d_surface *gsurf;
+
+   gsurf = CALLOC_STRUCT(egl_g3d_surface);
+   if (!gsurf) {
+      _eglError(EGL_BAD_ALLOC, "eglCreatePbufferSurface");
+      return NULL;
+   }
+
+   if (!_eglInitSurface(drv, &gsurf->base,
+            EGL_SCREEN_BIT_MESA, conf, attribs)) {
+      free(gsurf);
+      return NULL;
+   }
+
+   gsurf->native =
+      gdpy->native->modeset->create_scanout_surface(gdpy->native,
+            gconf->native, gsurf->base.Width, gsurf->base.Height);
+   if (!gsurf->native) {
+      free(gsurf);
+      return NULL;
+   }
+
+   gsurf->render_att = (!gconf->native->mode.doubleBufferMode) ?
+      NATIVE_ATTACHMENT_FRONT_LEFT : NATIVE_ATTACHMENT_BACK_LEFT;
+
+   return &gsurf->base;
+}
+
+static EGLBoolean
+egl_g3d_show_screen_surface(_EGLDriver *drv, _EGLDisplay *dpy,
+                            _EGLScreen *scr, _EGLSurface *surf,
+                            _EGLMode *mode)
+{
+   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
+   struct egl_g3d_screen *gscr = egl_g3d_screen(scr);
+   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
+   struct native_surface *nsurf;
+   const struct native_mode *nmode;
+   EGLBoolean changed;
+
+   if (gsurf) {
+      EGLint idx;
+
+      if (!mode)
+         return _eglError(EGL_BAD_MATCH, "eglShowSurfaceMESA");
+      if (gsurf->base.Type != EGL_SCREEN_BIT_MESA)
+         return _eglError(EGL_BAD_SURFACE, "eglShowScreenSurfaceMESA");
+      if (gsurf->base.Width < mode->Width || gsurf->base.Height < mode->Height)
+         return _eglError(EGL_BAD_MATCH,
+               "eglShowSurfaceMESA(surface smaller than mode size)");
+
+      /* find the index of the mode */
+      for (idx = 0; idx < gscr->base.NumModes; idx++)
+         if (mode == &gscr->base.Modes[idx])
+            break;
+      if (idx >= gscr->base.NumModes) {
+         return _eglError(EGL_BAD_MODE_MESA,
+               "eglShowSurfaceMESA(unknown mode)");
+      }
+
+      nsurf = gsurf->native;
+      nmode = gscr->native_modes[idx];
+   }
+   else {
+      if (mode)
+         return _eglError(EGL_BAD_MATCH, "eglShowSurfaceMESA");
+
+      /* disable the screen */
+      nsurf = NULL;
+      nmode = NULL;
+   }
+
+   /* TODO surface panning by CRTC choosing */
+   changed = gdpy->native->modeset->program(gdpy->native, 0, nsurf,
+         gscr->base.OriginX, gscr->base.OriginY, &gscr->native, 1, nmode);
+   if (changed) {
+      gscr->base.CurrentSurface = &gsurf->base;
+      gscr->base.CurrentMode = mode;
+   }
+
+   return changed;
+}
+
+#endif /* EGL_MESA_screen_surface */
+
+static EGLint
+egl_g3d_probe(_EGLDriver *drv, _EGLDisplay *dpy)
+{
+   struct native_probe *nprobe;
+   enum native_probe_result res;
+   EGLint score;
+
+   nprobe = egl_g3d_get_probe(drv, dpy);
+   res = native_get_probe_result(nprobe);
+
+   switch (res) {
+   case NATIVE_PROBE_UNKNOWN:
+   default:
+      score = 0;
+      break;
+   case NATIVE_PROBE_FALLBACK:
+      score = 40;
+      break;
+   case NATIVE_PROBE_SUPPORTED:
+      score = 50;
+      break;
+   case NATIVE_PROBE_EXACT:
+      score = 100;
+      break;
+   }
+
+   return score;
+}
+
+static void
+egl_g3d_unload(_EGLDriver *drv)
+{
+   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
+
+   egl_g3d_destroy_probe(drv, NULL);
+   free(gdrv);
+}
+
+_EGLDriver *
+_eglMain(const char *args)
+{
+   static char driver_name[64];
+   struct egl_g3d_driver *gdrv;
+
+   snprintf(driver_name, sizeof(driver_name),
+         "Gallium/%s", native_get_name());
+
+   gdrv = CALLOC_STRUCT(egl_g3d_driver);
+   if (!gdrv)
+      return NULL;
+
+   _eglInitDriverFallbacks(&gdrv->base);
+
+   gdrv->base.API.Initialize = egl_g3d_initialize;
+   gdrv->base.API.Terminate = egl_g3d_terminate;
+   gdrv->base.API.CreateContext = egl_g3d_create_context;
+   gdrv->base.API.DestroyContext = egl_g3d_destroy_context;
+   gdrv->base.API.CreateWindowSurface = egl_g3d_create_window_surface;
+   gdrv->base.API.CreatePixmapSurface = egl_g3d_create_pixmap_surface;
+   gdrv->base.API.CreatePbufferSurface = egl_g3d_create_pbuffer_surface;
+   gdrv->base.API.DestroySurface = egl_g3d_destroy_surface;
+   gdrv->base.API.MakeCurrent = egl_g3d_make_current;
+   gdrv->base.API.SwapBuffers = egl_g3d_swap_buffers;
+   gdrv->base.API.CopyBuffers = egl_g3d_copy_buffers;
+   gdrv->base.API.WaitClient = egl_g3d_wait_client;
+   gdrv->base.API.WaitNative = egl_g3d_wait_native;
+   gdrv->base.API.GetProcAddress = egl_g3d_get_proc_address;
+
+   gdrv->base.API.BindTexImage = egl_g3d_bind_tex_image;
+   gdrv->base.API.ReleaseTexImage = egl_g3d_release_tex_image;
+
+#ifdef EGL_MESA_screen_surface
+   gdrv->base.API.CreateScreenSurfaceMESA = egl_g3d_create_screen_surface;
+   gdrv->base.API.ShowScreenSurfaceMESA = egl_g3d_show_screen_surface;
+#endif
+
+   gdrv->base.Name = driver_name;
+   gdrv->base.Probe = egl_g3d_probe;
+   gdrv->base.Unload = egl_g3d_unload;
+
+   /* the key is " EGL G3D" */
+   gdrv->probe_key = 0x0E61063D;
+
+   return &gdrv->base;
+}
diff --git a/src/gallium/state_trackers/egl/common/egl_g3d.h b/src/gallium/state_trackers/egl/common/egl_g3d.h
new file mode 100644
index 00000000000..3dae8c40529
--- /dev/null
+++ b/src/gallium/state_trackers/egl/common/egl_g3d.h
@@ -0,0 +1,127 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2009-2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#ifndef _EGL_G3D_H_
+#define _EGL_G3D_H_
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_context.h"
+#include "pipe/p_format.h"
+#include "egldriver.h"
+#include "egldisplay.h"
+#include "eglcontext.h"
+#include "eglsurface.h"
+#include "eglconfig.h"
+#include "eglscreen.h"
+#include "eglmode.h"
+
+#include "native.h"
+#include "egl_st.h"
+
+struct egl_g3d_driver {
+   _EGLDriver base;
+   const struct egl_g3d_st *stapis[NUM_EGL_G3D_STS];
+   EGLint api_mask;
+
+   EGLint probe_key;
+};
+
+struct egl_g3d_display {
+   struct native_display *native;
+};
+
+struct egl_g3d_buffer {
+   struct st_framebuffer *st_fb;
+   uint attachment_mask;
+};
+
+struct egl_g3d_context {
+   _EGLContext base;
+
+   const struct egl_g3d_st *stapi;
+   struct pipe_context *pipe;
+
+   struct st_context *st_ctx;
+   EGLBoolean force_validate;
+   struct egl_g3d_buffer draw, read;
+};
+
+struct egl_g3d_surface {
+   _EGLSurface base;
+   struct native_surface *native;
+   enum native_attachment render_att;
+   struct pipe_surface *render_surface;
+   unsigned int sequence_number;
+};
+
+struct egl_g3d_config {
+   _EGLConfig base;
+   const struct native_config *native;
+};
+
+struct egl_g3d_screen {
+   _EGLScreen base;
+   const struct native_connector *native;
+   const struct native_mode **native_modes;
+};
+
+static INLINE struct egl_g3d_driver *
+egl_g3d_driver(_EGLDriver *drv)
+{
+   return (struct egl_g3d_driver *) drv;
+}
+
+static INLINE struct egl_g3d_display *
+egl_g3d_display(_EGLDisplay *dpy)
+{
+   /* note that it is not direct casting */
+   return (struct egl_g3d_display *) dpy->DriverData;
+}
+
+static INLINE struct egl_g3d_context *
+egl_g3d_context(_EGLContext *ctx)
+{
+   return (struct egl_g3d_context *) ctx;
+}
+
+static INLINE struct egl_g3d_surface *
+egl_g3d_surface(_EGLSurface *surf)
+{
+   return (struct egl_g3d_surface *) surf;
+}
+
+static INLINE struct egl_g3d_config *
+egl_g3d_config(_EGLConfig *conf)
+{
+   return (struct egl_g3d_config *) conf;
+}
+
+static INLINE struct egl_g3d_screen *
+egl_g3d_screen(_EGLScreen *scr)
+{
+   return (struct egl_g3d_screen *) scr;
+}
+
+#endif /* _EGL_G3D_H_ */
diff --git a/src/gallium/state_trackers/egl/common/egl_st.c b/src/gallium/state_trackers/egl/common/egl_st.c
new file mode 100644
index 00000000000..a88ff911cd5
--- /dev/null
+++ b/src/gallium/state_trackers/egl/common/egl_st.c
@@ -0,0 +1,131 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2009-2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#include <dlfcn.h>
+#include "pipe/p_compiler.h"
+#include "util/u_memory.h"
+#include "egllog.h"
+#include "EGL/egl.h" /* for EGL_api_BIT */
+
+#include "egl_st.h"
+
+#ifndef HAVE_DLADDR
+#define HAVE_DLADDR 1
+#endif
+
+#if HAVE_DLADDR
+
+static const char *
+egl_g3d_st_names[] = {
+#define ST_PUBLIC(name, ...) #name,
+#include "st_public_tmp.h"
+   NULL
+};
+
+static boolean
+egl_g3d_fill_st(struct egl_g3d_st *stapi, void *sym)
+{
+   st_proc *procs = (st_proc *) stapi;
+   void *handle;
+   Dl_info info;
+   const char **name;
+
+   if (!dladdr(sym, &info))
+      return FALSE;
+   handle = dlopen(info.dli_fname, RTLD_LAZY | RTLD_LOCAL | RTLD_NODELETE);
+   if (!handle)
+      return FALSE;
+
+   for (name = egl_g3d_st_names; *name; name++) {
+      st_proc proc = (st_proc) dlsym(handle, *name);
+      if (!proc) {
+         _eglLog(_EGL_WARNING, "%s is missing in %s", *name, info.dli_fname);
+         memset(stapi, 0, sizeof(*stapi));
+         dlclose(handle);
+         return FALSE;
+      }
+      *procs++ = proc;
+   }
+
+   dlclose(handle);
+   return TRUE;
+}
+
+#else /* HAVE_DLADDR */
+
+static boolean
+egl_g3d_fill_st(struct egl_g3d_st *stapi, void *sym)
+{
+#define ST_PUBLIC(name, ...) stapi->name = name;
+#include "st_public_tmp.h"
+   return TRUE;
+}
+
+#endif /* HAVE_DLADDR */
+
+static boolean
+egl_g3d_init_st(struct egl_g3d_st *stapi, const char *api)
+{
+   void *handle, *sym;
+   boolean res = FALSE;
+
+   /* already initialized */
+   if (stapi->st_notify_swapbuffers != NULL)
+      return TRUE;
+
+   handle = dlopen(NULL, RTLD_LAZY | RTLD_LOCAL);
+   if (!handle)
+      return FALSE;
+
+   sym = dlsym(handle, api);
+   if (sym && egl_g3d_fill_st(stapi, sym))
+      res = TRUE;
+
+   dlclose(handle);
+   return res;
+}
+
+static struct {
+   const char *symbol;
+   EGLint api_bit;
+} egl_g3d_st_info[NUM_EGL_G3D_STS] = {
+   { "st_api_OpenGL_ES1",  EGL_OPENGL_ES_BIT },
+   { "st_api_OpenVG",      EGL_OPENVG_BIT },
+   { "st_api_OpenGL_ES2",  EGL_OPENGL_ES2_BIT },
+   { "st_api_OpenGL",      EGL_OPENGL_BIT },
+};
+
+const struct egl_g3d_st *
+egl_g3d_get_st(enum egl_g3d_st_api api)
+{
+   static struct egl_g3d_st all_trackers[NUM_EGL_G3D_STS];
+
+   if (egl_g3d_init_st(&all_trackers[api], egl_g3d_st_info[api].symbol)) {
+      all_trackers[api].api_bit = egl_g3d_st_info[api].api_bit;
+      return &all_trackers[api];
+   }
+   else {
+      return NULL;
+   }
+}
diff --git a/src/gallium/state_trackers/egl/common/egl_st.h b/src/gallium/state_trackers/egl/common/egl_st.h
new file mode 100644
index 00000000000..8fb464bd3d7
--- /dev/null
+++ b/src/gallium/state_trackers/egl/common/egl_st.h
@@ -0,0 +1,73 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2009-2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#ifndef _EGL_ST_H_
+#define _EGL_ST_H_
+
+#include "GL/gl.h" /* for GL types */
+#include "GL/internal/glcore.h"  /* for __GLcontextModes */
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_format.h"
+#include "pipe/p_context.h"
+
+/* avoid calling st functions directly */
+#if 1
+
+#define ST_SURFACE_FRONT_LEFT   0
+#define ST_SURFACE_BACK_LEFT    1
+#define ST_SURFACE_FRONT_RIGHT  2
+#define ST_SURFACE_BACK_RIGHT   3
+
+#define ST_TEXTURE_2D    0x2
+
+struct st_context;
+struct st_framebuffer;
+typedef void (*st_proc)();
+
+#else
+#include "state_tracker/st_public.h"
+#endif
+
+/* remember to update egl_g3d_get_st() when update the enums */
+enum egl_g3d_st_api {
+   EGL_G3D_ST_OPENGL_ES = 0,
+   EGL_G3D_ST_OPENVG,
+   EGL_G3D_ST_OPENGL_ES2,
+   EGL_G3D_ST_OPENGL,
+
+   NUM_EGL_G3D_STS
+};
+
+struct egl_g3d_st {
+#define ST_PUBLIC(name, ret, ...) ret (*name)(__VA_ARGS__);
+#include "st_public_tmp.h"
+   /* fields must be added here */
+   EGLint api_bit;
+};
+
+const struct egl_g3d_st *
+egl_g3d_get_st(enum egl_g3d_st_api api);
+
+#endif /* _EGL_ST_H_ */
diff --git a/src/gallium/state_trackers/egl/common/native.h b/src/gallium/state_trackers/egl/common/native.h
new file mode 100644
index 00000000000..72a9cec7ef1
--- /dev/null
+++ b/src/gallium/state_trackers/egl/common/native.h
@@ -0,0 +1,277 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2009-2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#ifndef _NATIVE_H_
+#define _NATIVE_H_
+
+#include "EGL/egl.h"  /* for EGL native types */
+#include "GL/gl.h" /* for GL types needed by __GLcontextModes */
+#include "GL/internal/glcore.h"  /* for __GLcontextModes */
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+
+/**
+ * Only color buffers are listed.  The others are allocated privately through,
+ * for example, st_renderbuffer_alloc_storage().
+ */
+enum native_attachment {
+   NATIVE_ATTACHMENT_FRONT_LEFT,
+   NATIVE_ATTACHMENT_BACK_LEFT,
+   NATIVE_ATTACHMENT_FRONT_RIGHT,
+   NATIVE_ATTACHMENT_BACK_RIGHT,
+
+   NUM_NATIVE_ATTACHMENTS
+};
+
+/**
+ * Enumerations for probe results.
+ */
+enum native_probe_result {
+   NATIVE_PROBE_UNKNOWN,
+   NATIVE_PROBE_FALLBACK,
+   NATIVE_PROBE_SUPPORTED,
+   NATIVE_PROBE_EXACT,
+};
+
+/**
+ * A probe object for display probe.
+ */
+struct native_probe {
+   int magic;
+   EGLNativeDisplayType display;
+   void *data;
+
+   void (*destroy)(struct native_probe *nprobe);
+};
+
+struct native_surface {
+   void (*destroy)(struct native_surface *nsurf);
+
+   /**
+    * Swap the front and back buffers so that the back buffer is visible.  It
+    * is no-op if the surface is single-buffered.  The contents of the back
+    * buffer after swapping may or may not be preserved.
+    */
+   boolean (*swap_buffers)(struct native_surface *nsurf);
+
+   /**
+    * Make the front buffer visible.  In some native displays, changes to the
+    * front buffer might not be visible immediately and require manual flush.
+    */
+   boolean (*flush_frontbuffer)(struct native_surface *nsurf);
+
+   /**
+    * Validate the buffers of the surface.  textures, if not NULL, points to an
+    * array of size NUM_NATIVE_ATTACHMENTS and the returned textures are owned
+    * by the caller.  A sequence number is also returned.  The caller can use
+    * it to check if anything has changed since the last call. Any of the
+    * pointers may be NULL and it indicates the caller has no interest in those
+    * values.
+    *
+    * If this function is called multiple times with different attachment
+    * masks, those not listed in the latest call might be destroyed.  This
+    * behavior might change in the future.
+    */
+   boolean (*validate)(struct native_surface *nsurf, uint attachment_mask,
+                       unsigned int *seq_num, struct pipe_texture **textures,
+                       int *width, int *height);
+
+   /**
+    * Wait until all native commands affecting the surface has been executed.
+    */
+   void (*wait)(struct native_surface *nsurf);
+};
+
+struct native_config {
+   /* __GLcontextModes should go away some day */
+   __GLcontextModes mode;
+   enum pipe_format color_format;
+   enum pipe_format depth_format;
+   enum pipe_format stencil_format;
+
+   /* treat it as an additional flag to mode.drawableType */
+   boolean scanout_bit;
+};
+
+struct native_connector {
+   int dummy;
+};
+
+struct native_mode {
+   const char *desc;
+   int width, height;
+   int refresh_rate;
+};
+
+struct native_display_modeset;
+
+/**
+ * A pipe winsys abstracts the OS.  A pipe screen abstracts the graphcis
+ * hardware.  A native display consists of a pipe winsys, a pipe screen, and
+ * the native display server.
+ */
+struct native_display {
+   /**
+    * The pipe screen of the native display.
+    *
+    * Note that the "flush_frontbuffer" and "update_buffer" callbacks will be
+    * overridden.
+    */
+   struct pipe_screen *screen;
+
+   void (*destroy)(struct native_display *ndpy);
+
+   /**
+    * Get the supported configs.  The configs are owned by the display, but
+    * the returned array should be free()ed.
+    *
+    * The configs will be converted to EGL config by
+    * _eglConfigFromContextModesRec and validated by _eglValidateConfig.
+    * Those failing to pass the test will be skipped.
+    */
+   const struct native_config **(*get_configs)(struct native_display *ndpy,
+                                               int *num_configs);
+
+   /**
+    * Test if a pixmap is supported by the given config.  Required unless no
+    * config has GLX_PIXMAP_BIT set.
+    *
+    * This function is usually called to find a config that supports a given
+    * pixmap.  Thus, it is usually called with the same pixmap in a row.
+    */
+   boolean (*is_pixmap_supported)(struct native_display *ndpy,
+                                  EGLNativePixmapType pix,
+                                  const struct native_config *nconf);
+
+   /**
+    * Create a pipe context.
+    */
+   struct pipe_context *(*create_context)(struct native_display *ndpy,
+                                          void *context_private);
+
+   /**
+    * Create a window surface.  Required unless no config has GLX_WINDOW_BIT
+    * set.
+    */
+   struct native_surface *(*create_window_surface)(struct native_display *ndpy,
+                                                   EGLNativeWindowType win,
+                                                   const struct native_config *nconf);
+
+   /**
+    * Create a pixmap surface.  Required unless no config has GLX_PIXMAP_BIT
+    * set.
+    */
+   struct native_surface *(*create_pixmap_surface)(struct native_display *ndpy,
+                                                   EGLNativePixmapType pix,
+                                                   const struct native_config *nconf);
+
+   /**
+    * Create a pbuffer surface.  Required unless no config has GLX_PBUFFER_BIT
+    * set.
+    */
+   struct native_surface *(*create_pbuffer_surface)(struct native_display *ndpy,
+                                                    const struct native_config *nconf,
+                                                    uint width, uint height);
+
+   const struct native_display_modeset *modeset;
+};
+
+/**
+ * Mode setting interface of the native display.  It exposes the mode setting
+ * capabilities of the underlying graphics hardware.
+ */
+struct native_display_modeset {
+   /**
+    * Get the available physical connectors and the number of CRTCs.
+    */
+   const struct native_connector **(*get_connectors)(struct native_display *ndpy,
+                                                     int *num_connectors,
+                                                     int *num_crtcs);
+
+   /**
+    * Get the current supported modes of a connector.  The returned modes may
+    * change every time this function is called and those from previous calls
+    * might become invalid.
+    */
+   const struct native_mode **(*get_modes)(struct native_display *ndpy,
+                                           const struct native_connector *nconn,
+                                           int *num_modes);
+
+   /**
+    * Create a scan-out surface.  Required unless no config has
+    * GLX_SCREEN_BIT_MESA set.
+    */
+   struct native_surface *(*create_scanout_surface)(struct native_display *ndpy,
+                                                    const struct native_config *nconf,
+                                                    uint width, uint height);
+
+   /**
+    * Program the CRTC to output the surface to the given connectors with the
+    * given mode.  When surface is not given, the CRTC is disabled.
+    *
+    * This interface does not export a way to query capabilities of the CRTCs.
+    * The native display usually needs to dynamically map the index to a CRTC
+    * that supports the given connectors.
+    */
+   boolean (*program)(struct native_display *ndpy, int crtc_idx,
+                      struct native_surface *nsurf, uint x, uint y,
+                      const struct native_connector **nconns, int num_nconns,
+                      const struct native_mode *nmode);
+};
+
+/**
+ * Test whether an attachment is set in the mask.
+ */
+static INLINE boolean
+native_attachment_mask_test(uint mask, enum native_attachment att)
+{
+   return !!(mask & (1 << att));
+}
+
+/**
+ * Return a probe object for the given display.
+ *
+ * Note that the returned object may be cached and used by different native
+ * display modules.  It allows fast probing when multiple modules probe the
+ * same display.
+ */
+struct native_probe *
+native_create_probe(EGLNativeDisplayType dpy);
+
+/**
+ * Probe the probe object.
+ */
+enum native_probe_result
+native_get_probe_result(struct native_probe *nprobe);
+
+const char *
+native_get_name(void);
+
+struct native_display *
+native_create_display(EGLNativeDisplayType dpy);
+
+#endif /* _NATIVE_H_ */
diff --git a/src/gallium/state_trackers/egl/common/st_public_tmp.h b/src/gallium/state_trackers/egl/common/st_public_tmp.h
new file mode 100644
index 00000000000..507a0ec4027
--- /dev/null
+++ b/src/gallium/state_trackers/egl/common/st_public_tmp.h
@@ -0,0 +1,20 @@
+ST_PUBLIC(st_create_context,              struct st_context *,       struct pipe_context *pipe, const __GLcontextModes *visual, struct st_context *share)
+ST_PUBLIC(st_destroy_context,             void,                      struct st_context *st)
+ST_PUBLIC(st_copy_context_state,          void,                      struct st_context *dst, struct st_context *src, uint mask)
+ST_PUBLIC(st_create_framebuffer,          struct st_framebuffer *,   const __GLcontextModes *visual, enum pipe_format colorFormat, enum pipe_format depthFormat, enum pipe_format stencilFormat, uint width, uint height, void *privateData)
+ST_PUBLIC(st_resize_framebuffer,          void,                      struct st_framebuffer *stfb, uint width, uint height)
+ST_PUBLIC(st_set_framebuffer_surface,     void,                      struct st_framebuffer *stfb, uint surfIndex, struct pipe_surface *surf)
+ST_PUBLIC(st_get_framebuffer_dimensions,  void,                      struct st_framebuffer *stfb, uint *width, uint *height)
+ST_PUBLIC(st_get_framebuffer_surface,     int,                       struct st_framebuffer *stfb, uint surfIndex, struct pipe_surface **surface)
+ST_PUBLIC(st_get_framebuffer_texture,     int,                       struct st_framebuffer *stfb, uint surfIndex, struct pipe_texture **texture)
+ST_PUBLIC(st_framebuffer_private,         void *,                    struct st_framebuffer *stfb)
+ST_PUBLIC(st_unreference_framebuffer,     void,                      struct st_framebuffer *stfb)
+ST_PUBLIC(st_make_current,                GLboolean,                 struct st_context *st, struct st_framebuffer *draw, struct st_framebuffer *read)
+ST_PUBLIC(st_get_current,                 struct st_context *,       void)
+ST_PUBLIC(st_flush,                       void,                      struct st_context *st, uint pipeFlushFlags, struct pipe_fence_handle **fence)
+ST_PUBLIC(st_finish,                      void,                      struct st_context *st)
+ST_PUBLIC(st_notify_swapbuffers,          void,                      struct st_framebuffer *stfb)
+ST_PUBLIC(st_bind_texture_surface,        int,                       struct pipe_surface *ps, int target, int level, enum pipe_format format)
+ST_PUBLIC(st_unbind_texture_surface,      int,                       struct pipe_surface *ps, int target, int level)
+ST_PUBLIC(st_get_proc_address,            st_proc,                   const char *procname)
+#undef ST_PUBLIC
diff --git a/src/gallium/state_trackers/egl/kms/native_kms.c b/src/gallium/state_trackers/egl/kms/native_kms.c
new file mode 100644
index 00000000000..d5baf2c2f05
--- /dev/null
+++ b/src/gallium/state_trackers/egl/kms/native_kms.c
@@ -0,0 +1,866 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#include <string.h>
+
+#include "pipe/p_screen.h"
+#include "pipe/p_context.h"
+#include "util/u_debug.h"
+#include "util/u_memory.h"
+#include "egllog.h"
+
+#include "native_kms.h"
+
+static boolean
+kms_surface_validate(struct native_surface *nsurf, uint attachment_mask,
+                     unsigned int *seq_num, struct pipe_texture **textures,
+                     int *width, int *height)
+{
+   struct kms_surface *ksurf = kms_surface(nsurf);
+   struct kms_display *kdpy = ksurf->kdpy;
+   struct pipe_screen *screen = kdpy->base.screen;
+   struct pipe_texture templ, *ptex;
+   int att;
+
+   if (attachment_mask) {
+      memset(&templ, 0, sizeof(templ));
+      templ.target = PIPE_TEXTURE_2D;
+      templ.last_level = 0;
+      templ.width0 = ksurf->width;
+      templ.height0 = ksurf->height;
+      templ.depth0 = 1;
+      templ.format = ksurf->color_format;
+      templ.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET;
+      if (ksurf->type == KMS_SURFACE_TYPE_SCANOUT)
+         templ.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
+   }
+
+   /* create textures */
+   for (att = 0; att < NUM_NATIVE_ATTACHMENTS; att++) {
+      /* delay the allocation */
+      if (!native_attachment_mask_test(attachment_mask, att))
+         continue;
+
+      ptex = ksurf->textures[att];
+      if (!ptex) {
+         ptex = screen->texture_create(screen, &templ);
+         ksurf->textures[att] = ptex;
+      }
+
+      if (textures) {
+         textures[att] = NULL;
+         pipe_texture_reference(&textures[att], ptex);
+      }
+   }
+
+   if (seq_num)
+      *seq_num = ksurf->sequence_number;
+   if (width)
+      *width = ksurf->width;
+   if (height)
+      *height = ksurf->height;
+
+   return TRUE;
+}
+
+/**
+ * Add textures as DRM framebuffers.
+ */
+static boolean
+kms_surface_init_framebuffers(struct native_surface *nsurf, boolean need_back)
+{
+   struct kms_surface *ksurf = kms_surface(nsurf);
+   struct kms_display *kdpy = ksurf->kdpy;
+   int num_framebuffers = (need_back) ? 2 : 1;
+   int i, err;
+
+   for (i = 0; i < num_framebuffers; i++) {
+      struct kms_framebuffer *fb;
+      enum native_attachment natt;
+      unsigned int handle, stride;
+      uint block_bits;
+
+      if (i == 0) {
+         fb = &ksurf->front_fb;
+         natt = NATIVE_ATTACHMENT_FRONT_LEFT;
+      }
+      else {
+         fb = &ksurf->back_fb;
+         natt = NATIVE_ATTACHMENT_BACK_LEFT;
+      }
+
+      if (!fb->texture) {
+         /* make sure the texture has been allocated */
+         kms_surface_validate(&ksurf->base, 1 << natt, NULL, NULL, NULL, NULL);
+         if (!ksurf->textures[natt])
+            return FALSE;
+
+         pipe_texture_reference(&fb->texture, ksurf->textures[natt]);
+      }
+
+      /* already initialized */
+      if (fb->buffer_id)
+         continue;
+
+      /* TODO detect the real value */
+      fb->is_passive = TRUE;
+
+      if (!kdpy->api->local_handle_from_texture(kdpy->api,
+               kdpy->base.screen, fb->texture, &stride, &handle))
+         return FALSE;
+
+      block_bits = util_format_get_blocksizebits(ksurf->color_format);
+      err = drmModeAddFB(kdpy->fd, ksurf->width, ksurf->height,
+            block_bits, block_bits, stride, handle, &fb->buffer_id);
+      if (err) {
+         fb->buffer_id = 0;
+         return FALSE;
+      }
+   }
+
+   return TRUE;
+}
+
+static boolean
+kms_surface_flush_frontbuffer(struct native_surface *nsurf)
+{
+#ifdef DRM_MODE_FEATURE_DIRTYFB
+   struct kms_surface *ksurf = kms_surface(nsurf);
+   struct kms_display *kdpy = ksurf->kdpy;
+
+   /* pbuffer is private */
+   if (ksurf->type == KMS_SURFACE_TYPE_PBUFFER)
+      return TRUE;
+
+   if (ksurf->front_fb.is_passive)
+      drmModeDirtyFB(kdpy->fd, ksurf->front_fb.buffer_id, NULL, 0);
+#endif
+
+   return TRUE;
+}
+
+static boolean
+kms_surface_swap_buffers(struct native_surface *nsurf)
+{
+   struct kms_surface *ksurf = kms_surface(nsurf);
+   struct kms_crtc *kcrtc = &ksurf->current_crtc;
+   struct kms_display *kdpy = ksurf->kdpy;
+   struct kms_framebuffer tmp_fb;
+   struct pipe_texture *tmp_texture;
+   int err;
+
+   /* pbuffer is private */
+   if (ksurf->type == KMS_SURFACE_TYPE_PBUFFER)
+      return TRUE;
+
+   if (!ksurf->back_fb.buffer_id) {
+      if (!kms_surface_init_framebuffers(&ksurf->base, TRUE))
+         return FALSE;
+   }
+
+   if (ksurf->is_shown && kcrtc->crtc) {
+      err = drmModeSetCrtc(kdpy->fd, kcrtc->crtc->crtc_id,
+            ksurf->back_fb.buffer_id, kcrtc->crtc->x, kcrtc->crtc->y,
+            kcrtc->connectors, kcrtc->num_connectors, &kcrtc->crtc->mode);
+      if (err)
+         return FALSE;
+   }
+
+   /* swap the buffers */
+   tmp_fb = ksurf->front_fb;
+   ksurf->front_fb = ksurf->back_fb;
+   ksurf->back_fb = tmp_fb;
+
+   tmp_texture = ksurf->textures[NATIVE_ATTACHMENT_FRONT_LEFT];
+   ksurf->textures[NATIVE_ATTACHMENT_FRONT_LEFT] =
+      ksurf->textures[NATIVE_ATTACHMENT_BACK_LEFT];
+   ksurf->textures[NATIVE_ATTACHMENT_BACK_LEFT] = tmp_texture;
+
+   /* the front/back textures are swapped */
+   ksurf->sequence_number++;
+
+   return TRUE;
+}
+
+static void
+kms_surface_wait(struct native_surface *nsurf)
+{
+   /* no-op */
+}
+
+static void
+kms_surface_destroy(struct native_surface *nsurf)
+{
+   struct kms_surface *ksurf = kms_surface(nsurf);
+   int i;
+
+   if (ksurf->current_crtc.crtc)
+         drmModeFreeCrtc(ksurf->current_crtc.crtc);
+
+   if (ksurf->front_fb.buffer_id)
+      drmModeRmFB(ksurf->kdpy->fd, ksurf->front_fb.buffer_id);
+   pipe_texture_reference(&ksurf->front_fb.texture, NULL);
+
+   if (ksurf->back_fb.buffer_id)
+      drmModeRmFB(ksurf->kdpy->fd, ksurf->back_fb.buffer_id);
+   pipe_texture_reference(&ksurf->back_fb.texture, NULL);
+
+   for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
+      struct pipe_texture *ptex = ksurf->textures[i];
+      pipe_texture_reference(&ptex, NULL);
+   }
+
+   free(ksurf);
+}
+
+static struct kms_surface *
+kms_display_create_surface(struct native_display *ndpy,
+                           enum kms_surface_type type,
+                           const struct native_config *nconf,
+                           uint width, uint height)
+{
+   struct kms_display *kdpy = kms_display(ndpy);
+   struct kms_config *kconf = kms_config(nconf);
+   struct kms_surface *ksurf;
+
+   ksurf = CALLOC_STRUCT(kms_surface);
+   if (!ksurf)
+      return NULL;
+
+   ksurf->kdpy = kdpy;
+   ksurf->type = type;
+   ksurf->color_format = kconf->base.color_format;
+   ksurf->width = width;
+   ksurf->height = height;
+
+   ksurf->base.destroy = kms_surface_destroy;
+   ksurf->base.swap_buffers = kms_surface_swap_buffers;
+   ksurf->base.flush_frontbuffer = kms_surface_flush_frontbuffer;
+   ksurf->base.validate = kms_surface_validate;
+   ksurf->base.wait = kms_surface_wait;
+
+   return ksurf;
+}
+
+/**
+ * Choose a CRTC that supports all given connectors.
+ */
+static uint32_t
+kms_display_choose_crtc(struct native_display *ndpy,
+                        uint32_t *connectors, int num_connectors)
+{
+   struct kms_display *kdpy = kms_display(ndpy);
+   int idx;
+
+   for (idx = 0; idx < kdpy->resources->count_crtcs; idx++) {
+      boolean found_crtc = TRUE;
+      int i, j;
+
+      for (i = 0; i < num_connectors; i++) {
+         drmModeConnectorPtr connector;
+         int encoder_idx = -1;
+
+         connector = drmModeGetConnector(kdpy->fd, connectors[i]);
+         if (!connector) {
+            found_crtc = FALSE;
+            break;
+         }
+
+         /* find an encoder the CRTC supports */
+         for (j = 0; j < connector->count_encoders; j++) {
+            drmModeEncoderPtr encoder =
+               drmModeGetEncoder(kdpy->fd, connector->encoders[j]);
+            if (encoder->possible_crtcs & (1 << idx)) {
+               encoder_idx = j;
+               break;
+            }
+            drmModeFreeEncoder(encoder);
+         }
+
+         drmModeFreeConnector(connector);
+         if (encoder_idx < 0) {
+            found_crtc = FALSE;
+            break;
+         }
+      }
+
+      if (found_crtc)
+         break;
+   }
+
+   if (idx >= kdpy->resources->count_crtcs) {
+      _eglLog(_EGL_WARNING,
+            "failed to find a CRTC that supports the given %d connectors",
+            num_connectors);
+      return 0;
+   }
+
+   return kdpy->resources->crtcs[idx];
+}
+
+/**
+ * Remember the original CRTC status and set the CRTC
+ */
+static boolean
+kms_display_set_crtc(struct native_display *ndpy, int crtc_idx,
+                     uint32_t buffer_id, uint32_t x, uint32_t y,
+                     uint32_t *connectors, int num_connectors,
+                     drmModeModeInfoPtr mode)
+{
+   struct kms_display *kdpy = kms_display(ndpy);
+   struct kms_crtc *kcrtc = &kdpy->saved_crtcs[crtc_idx];
+   uint32_t crtc_id;
+   int err;
+
+   if (kcrtc->crtc) {
+      crtc_id = kcrtc->crtc->crtc_id;
+   }
+   else {
+      int count = 0, i;
+
+      /*
+       * Choose the CRTC once.  It could be more dynamic, but let's keep it
+       * simple for now.
+       */
+      crtc_id = kms_display_choose_crtc(&kdpy->base,
+            connectors, num_connectors);
+
+      /* save the original CRTC status */
+      kcrtc->crtc = drmModeGetCrtc(kdpy->fd, crtc_id);
+      if (!kcrtc->crtc)
+         return FALSE;
+
+      for (i = 0; i < kdpy->num_connectors; i++) {
+         struct kms_connector *kconn = &kdpy->connectors[i];
+         drmModeConnectorPtr connector = kconn->connector;
+         drmModeEncoderPtr encoder;
+
+         encoder = drmModeGetEncoder(kdpy->fd, connector->encoder_id);
+         if (encoder) {
+            if (encoder->crtc_id == crtc_id) {
+               kcrtc->connectors[count++] = connector->connector_id;
+               if (count >= Elements(kcrtc->connectors))
+                  break;
+            }
+            drmModeFreeEncoder(encoder);
+         }
+      }
+
+      kcrtc->num_connectors = count;
+   }
+
+   err = drmModeSetCrtc(kdpy->fd, crtc_id, buffer_id, x, y,
+         connectors, num_connectors, mode);
+   if (err) {
+      drmModeFreeCrtc(kcrtc->crtc);
+      kcrtc->crtc = NULL;
+      kcrtc->num_connectors = 0;
+
+      return FALSE;
+   }
+
+   return TRUE;
+}
+
+static boolean
+kms_display_program(struct native_display *ndpy, int crtc_idx,
+                    struct native_surface *nsurf, uint x, uint y,
+                    const struct native_connector **nconns, int num_nconns,
+                    const struct native_mode *nmode)
+{
+   struct kms_display *kdpy = kms_display(ndpy);
+   struct kms_surface *ksurf = kms_surface(nsurf);
+   const struct kms_mode *kmode = kms_mode(nmode);
+   uint32_t connector_ids[32];
+   uint32_t buffer_id;
+   drmModeModeInfo mode_tmp, *mode;
+   int i;
+
+   if (num_nconns > Elements(connector_ids)) {
+      _eglLog(_EGL_WARNING, "too many connectors (%d)", num_nconns);
+      num_nconns = Elements(connector_ids);
+   }
+
+   if (ksurf) {
+      if (!kms_surface_init_framebuffers(&ksurf->base, FALSE))
+         return FALSE;
+
+      buffer_id = ksurf->front_fb.buffer_id;
+      /* the mode argument of drmModeSetCrtc is not constified */
+      mode_tmp = kmode->mode;
+      mode = &mode_tmp;
+   }
+   else {
+      /* disable the CRTC */
+      buffer_id = 0;
+      mode = NULL;
+      num_nconns = 0;
+   }
+
+   for (i = 0; i < num_nconns; i++) {
+      struct kms_connector *kconn = kms_connector(nconns[i]);
+      connector_ids[i] = kconn->connector->connector_id;
+   }
+
+   if (!kms_display_set_crtc(&kdpy->base, crtc_idx, buffer_id, x, y,
+            connector_ids, num_nconns, mode)) {
+      _eglLog(_EGL_WARNING, "failed to set CRTC %d", crtc_idx);
+
+      return FALSE;
+   }
+
+   if (kdpy->shown_surfaces[crtc_idx])
+      kdpy->shown_surfaces[crtc_idx]->is_shown = FALSE;
+   kdpy->shown_surfaces[crtc_idx] = ksurf;
+
+   /* remember the settings for buffer swapping */
+   if (ksurf) {
+      uint32_t crtc_id = kdpy->saved_crtcs[crtc_idx].crtc->crtc_id;
+      struct kms_crtc *kcrtc = &ksurf->current_crtc;
+
+      if (kcrtc->crtc)
+         drmModeFreeCrtc(kcrtc->crtc);
+      kcrtc->crtc = drmModeGetCrtc(kdpy->fd, crtc_id);
+
+      assert(num_nconns < Elements(kcrtc->connectors));
+      memcpy(kcrtc->connectors, connector_ids,
+            sizeof(*connector_ids) * num_nconns);
+      kcrtc->num_connectors = num_nconns;
+
+      ksurf->is_shown = TRUE;
+   }
+
+   return TRUE;
+}
+
+static const struct native_mode **
+kms_display_get_modes(struct native_display *ndpy,
+                      const struct native_connector *nconn,
+                      int *num_modes)
+{
+   struct kms_display *kdpy = kms_display(ndpy);
+   struct kms_connector *kconn = kms_connector(nconn);
+   const struct native_mode **nmodes_return;
+   int count, i;
+
+   /* delete old data */
+   if (kconn->connector) {
+      drmModeFreeConnector(kconn->connector);
+      free(kconn->kms_modes);
+
+      kconn->connector = NULL;
+      kconn->kms_modes = NULL;
+      kconn->num_modes = 0;
+   }
+
+   /* detect again */
+   kconn->connector = drmModeGetConnector(kdpy->fd, kconn->connector_id);
+   if (!kconn->connector)
+      return NULL;
+
+   count = kconn->connector->count_modes;
+   kconn->kms_modes = calloc(count, sizeof(*kconn->kms_modes));
+   if (!kconn->kms_modes) {
+      drmModeFreeConnector(kconn->connector);
+      kconn->connector = NULL;
+
+      return NULL;
+   }
+
+   for (i = 0; i < count; i++) {
+      struct kms_mode *kmode = &kconn->kms_modes[i];
+      drmModeModeInfoPtr mode = &kconn->connector->modes[i];
+
+      kmode->mode = *mode;
+
+      kmode->base.desc = kmode->mode.name;
+      kmode->base.width = kmode->mode.hdisplay;
+      kmode->base.height = kmode->mode.vdisplay;
+      kmode->base.refresh_rate = kmode->mode.vrefresh / 1000;
+   }
+
+   nmodes_return = malloc(count * sizeof(*nmodes_return));
+   if (nmodes_return) {
+      for (i = 0; i < count; i++)
+         nmodes_return[i] = &kconn->kms_modes[i].base;
+      if (num_modes)
+         *num_modes = count;
+   }
+
+   return nmodes_return;
+}
+
+static const struct native_connector **
+kms_display_get_connectors(struct native_display *ndpy, int *num_connectors,
+                           int *num_crtc)
+{
+   struct kms_display *kdpy = kms_display(ndpy);
+   const struct native_connector **connectors;
+   int i;
+
+   if (!kdpy->connectors) {
+      kdpy->connectors =
+         calloc(kdpy->resources->count_connectors, sizeof(*kdpy->connectors));
+      if (!kdpy->connectors)
+         return NULL;
+
+      for (i = 0; i < kdpy->resources->count_connectors; i++) {
+         struct kms_connector *kconn = &kdpy->connectors[i];
+
+         kconn->connector_id = kdpy->resources->connectors[i];
+         /* kconn->connector is allocated when the modes are asked */
+      }
+
+      kdpy->num_connectors = kdpy->resources->count_connectors;
+   }
+
+   connectors = malloc(kdpy->num_connectors * sizeof(*connectors));
+   if (connectors) {
+      for (i = 0; i < kdpy->num_connectors; i++)
+         connectors[i] = &kdpy->connectors[i].base;
+      if (num_connectors)
+         *num_connectors = kdpy->num_connectors;
+   }
+
+   if (num_crtc)
+      *num_crtc = kdpy->resources->count_crtcs;
+
+   return connectors;
+}
+
+static struct native_surface *
+kms_display_create_scanout_surface(struct native_display *ndpy,
+                                   const struct native_config *nconf,
+                                   uint width, uint height)
+{
+   struct kms_surface *ksurf;
+
+   ksurf = kms_display_create_surface(ndpy,
+         KMS_SURFACE_TYPE_SCANOUT, nconf, width, height);
+   return &ksurf->base;
+}
+
+static struct native_surface *
+kms_display_create_pbuffer_surface(struct native_display *ndpy,
+                                   const struct native_config *nconf,
+                                   uint width, uint height)
+{
+   struct kms_surface *ksurf;
+
+   ksurf = kms_display_create_surface(ndpy,
+         KMS_SURFACE_TYPE_PBUFFER, nconf, width, height);
+   return &ksurf->base;
+}
+
+static struct pipe_context *
+kms_display_create_context(struct native_display *ndpy, void *context_private)
+{
+   struct kms_display *kdpy = kms_display(ndpy);
+   struct pipe_context *pctx;
+
+   pctx = kdpy->api->create_context(kdpy->api, kdpy->base.screen);
+   if (pctx)
+      pctx->priv = context_private;
+   return pctx;
+}
+
+static boolean
+kms_display_is_format_supported(struct native_display *ndpy,
+                                enum pipe_format fmt, boolean is_color)
+{
+   return ndpy->screen->is_format_supported(ndpy->screen,
+         fmt, PIPE_TEXTURE_2D,
+         (is_color) ? PIPE_TEXTURE_USAGE_RENDER_TARGET :
+         PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
+}
+
+static const struct native_config **
+kms_display_get_configs(struct native_display *ndpy, int *num_configs)
+{
+   struct kms_display *kdpy = kms_display(ndpy);
+   const struct native_config **configs;
+
+   /* first time */
+   if (!kdpy->config) {
+      struct native_config *nconf;
+      enum pipe_format format;
+
+      kdpy->config = calloc(1, sizeof(*kdpy->config));
+      if (!kdpy->config)
+         return NULL;
+
+      nconf = &kdpy->config->base;
+
+      /* always double-buffered */
+      nconf->mode.doubleBufferMode = TRUE;
+
+      format = PIPE_FORMAT_A8R8G8B8_UNORM;
+      if (!kms_display_is_format_supported(&kdpy->base, format, TRUE)) {
+         format = PIPE_FORMAT_B8G8R8A8_UNORM;
+         if (!kms_display_is_format_supported(&kdpy->base, format, TRUE))
+            format = PIPE_FORMAT_NONE;
+      }
+      if (format == PIPE_FORMAT_NONE)
+         return NULL;
+
+      nconf->color_format = format;
+      nconf->mode.redBits = 8;
+      nconf->mode.greenBits = 8;
+      nconf->mode.blueBits = 8;
+      nconf->mode.alphaBits = 8;
+      nconf->mode.rgbBits = 32;
+
+      format = PIPE_FORMAT_S8Z24_UNORM;
+      if (!kms_display_is_format_supported(&kdpy->base, format, FALSE)) {
+         format = PIPE_FORMAT_Z24S8_UNORM;
+         if (!kms_display_is_format_supported(&kdpy->base, format, FALSE))
+            format = PIPE_FORMAT_NONE;
+      }
+      if (format != PIPE_FORMAT_NONE) {
+         nconf->depth_format = format;
+         nconf->stencil_format = format;
+
+         nconf->mode.depthBits = 24;
+         nconf->mode.stencilBits = 8;
+         nconf->mode.haveDepthBuffer = TRUE;
+         nconf->mode.haveStencilBuffer = TRUE;
+      }
+
+      nconf->scanout_bit = TRUE;
+      nconf->mode.drawableType = GLX_PBUFFER_BIT;
+      nconf->mode.swapMethod = GLX_SWAP_EXCHANGE_OML;
+
+      nconf->mode.visualID = 0;
+      nconf->mode.visualType = EGL_NONE;
+
+      nconf->mode.renderType = GLX_RGBA_BIT;
+      nconf->mode.rgbMode = TRUE;
+      nconf->mode.xRenderable = FALSE;
+   }
+
+   configs = malloc(sizeof(*configs));
+   if (configs) {
+      configs[0] = &kdpy->config->base;
+      if (num_configs)
+         *num_configs = 1;
+   }
+
+   return configs;
+}
+
+static void
+kms_display_destroy(struct native_display *ndpy)
+{
+   struct kms_display *kdpy = kms_display(ndpy);
+   int i;
+
+   if (kdpy->config)
+      free(kdpy->config);
+
+   if (kdpy->connectors) {
+      for (i = 0; i < kdpy->num_connectors; i++) {
+         struct kms_connector *kconn = &kdpy->connectors[i];
+         if (kconn->connector) {
+            drmModeFreeConnector(kconn->connector);
+            free(kconn->kms_modes);
+         }
+      }
+      free(kdpy->connectors);
+   }
+
+   if (kdpy->shown_surfaces)
+      free(kdpy->shown_surfaces);
+
+   if (kdpy->saved_crtcs) {
+      for (i = 0; i < kdpy->resources->count_crtcs; i++) {
+         struct kms_crtc *kcrtc = &kdpy->saved_crtcs[i];
+
+         if (kcrtc->crtc) {
+            /* restore crtc */
+            drmModeSetCrtc(kdpy->fd, kcrtc->crtc->crtc_id,
+                  kcrtc->crtc->buffer_id, kcrtc->crtc->x, kcrtc->crtc->y,
+                  kcrtc->connectors, kcrtc->num_connectors,
+                  &kcrtc->crtc->mode);
+
+            drmModeFreeCrtc(kcrtc->crtc);
+         }
+      }
+      free(kdpy->saved_crtcs);
+   }
+
+   if (kdpy->resources)
+      drmModeFreeResources(kdpy->resources);
+
+   if (kdpy->base.screen)
+      kdpy->base.screen->destroy(kdpy->base.screen);
+
+   if (kdpy->fd >= 0)
+      drmClose(kdpy->fd);
+
+   if (kdpy->api)
+      kdpy->api->destroy(kdpy->api);
+   free(kdpy);
+}
+
+/**
+ * Initialize KMS and pipe screen.
+ */
+static boolean
+kms_display_init_screen(struct native_display *ndpy)
+{
+   struct kms_display *kdpy = kms_display(ndpy);
+   struct drm_create_screen_arg arg;
+   int fd;
+
+   fd = drmOpen(kdpy->api->name, NULL);
+   if (fd < 0) {
+      _eglLog(_EGL_WARNING, "failed to open DRM device");
+      return FALSE;
+   }
+
+#if 0
+   if (drmSetMaster(fd)) {
+      _eglLog(_EGL_WARNING, "failed to become DRM master");
+      return FALSE;
+   }
+#endif
+
+   memset(&arg, 0, sizeof(arg));
+   arg.mode = DRM_CREATE_NORMAL;
+   kdpy->base.screen = kdpy->api->create_screen(kdpy->api, fd, &arg);
+   if (!kdpy->base.screen) {
+      _eglLog(_EGL_WARNING, "failed to create DRM screen");
+      drmClose(fd);
+      return FALSE;
+   }
+
+   kdpy->fd = fd;
+
+   return TRUE;
+}
+
+static struct native_display_modeset kms_display_modeset = {
+   .get_connectors = kms_display_get_connectors,
+   .get_modes = kms_display_get_modes,
+   .create_scanout_surface = kms_display_create_scanout_surface,
+   .program = kms_display_program
+};
+
+static struct native_display *
+kms_create_display(EGLNativeDisplayType dpy, struct drm_api *api)
+{
+   struct kms_display *kdpy;
+
+   kdpy = CALLOC_STRUCT(kms_display);
+   if (!kdpy)
+      return NULL;
+
+   kdpy->api = api;
+   if (!kdpy->api) {
+      _eglLog(_EGL_WARNING, "failed to create DRM API");
+      free(kdpy);
+      return NULL;
+   }
+
+   kdpy->fd = -1;
+   if (!kms_display_init_screen(&kdpy->base)) {
+      kms_display_destroy(&kdpy->base);
+      return NULL;
+   }
+
+   /* resources are fixed, unlike crtc, connector, or encoder */
+   kdpy->resources = drmModeGetResources(kdpy->fd);
+   if (!kdpy->resources) {
+      kms_display_destroy(&kdpy->base);
+      return NULL;
+   }
+
+   kdpy->saved_crtcs =
+      calloc(kdpy->resources->count_crtcs, sizeof(*kdpy->saved_crtcs));
+   if (!kdpy->saved_crtcs) {
+      kms_display_destroy(&kdpy->base);
+      return NULL;
+   }
+
+   kdpy->shown_surfaces =
+      calloc(kdpy->resources->count_crtcs, sizeof(*kdpy->shown_surfaces));
+   if (!kdpy->shown_surfaces) {
+      kms_display_destroy(&kdpy->base);
+      return NULL;
+   }
+
+   kdpy->base.destroy = kms_display_destroy;
+   kdpy->base.get_configs = kms_display_get_configs;
+   kdpy->base.create_context = kms_display_create_context;
+   kdpy->base.create_pbuffer_surface = kms_display_create_pbuffer_surface;
+
+   kdpy->base.modeset = &kms_display_modeset;
+
+   return &kdpy->base;
+}
+
+struct native_probe *
+native_create_probe(EGLNativeDisplayType dpy)
+{
+   return NULL;
+}
+
+enum native_probe_result
+native_get_probe_result(struct native_probe *nprobe)
+{
+   return NATIVE_PROBE_UNKNOWN;
+}
+
+/* the api is destroyed with the native display */
+static struct drm_api *drm_api;
+
+const char *
+native_get_name(void)
+{
+   static char kms_name[32];
+
+   if (!drm_api)
+      drm_api = drm_api_create();
+
+   if (drm_api)
+      snprintf(kms_name, sizeof(kms_name), "KMS/%s", drm_api->name);
+   else
+      snprintf(kms_name, sizeof(kms_name), "KMS");
+
+   return kms_name;
+}
+
+struct native_display *
+native_create_display(EGLNativeDisplayType dpy)
+{
+   struct native_display *ndpy = NULL;
+
+   if (!drm_api)
+      drm_api = drm_api_create();
+
+   if (drm_api)
+      ndpy = kms_create_display(dpy, drm_api);
+
+   return ndpy;
+}
diff --git a/src/gallium/state_trackers/egl/kms/native_kms.h b/src/gallium/state_trackers/egl/kms/native_kms.h
new file mode 100644
index 00000000000..095186e3cf3
--- /dev/null
+++ b/src/gallium/state_trackers/egl/kms/native_kms.h
@@ -0,0 +1,139 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#ifndef _NATIVE_KMS_H_
+#define _NATIVE_KMS_H_
+
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#include "pipe/p_compiler.h"
+#include "util/u_format.h"
+#include "pipe/p_state.h"
+#include "state_tracker/drm_api.h"
+
+#include "common/native.h"
+
+enum kms_surface_type {
+   KMS_SURFACE_TYPE_PBUFFER,
+   KMS_SURFACE_TYPE_SCANOUT
+};
+
+struct kms_config;
+struct kms_connector;
+struct kms_mode;
+
+struct kms_crtc {
+   drmModeCrtcPtr crtc;
+   uint32_t connectors[32];
+   int num_connectors;
+};
+
+struct kms_display {
+   struct native_display base;
+
+   int fd;
+   struct drm_api *api;
+   drmModeResPtr resources;
+   struct kms_config *config;
+
+   struct kms_connector *connectors;
+   int num_connectors;
+
+   struct kms_surface **shown_surfaces;
+   /* save the original settings of the CRTCs */
+   struct kms_crtc *saved_crtcs;
+};
+
+struct kms_framebuffer {
+   struct pipe_texture *texture;
+   boolean is_passive;
+
+   uint32_t buffer_id;
+};
+
+struct kms_surface {
+   struct native_surface base;
+   enum kms_surface_type type;
+   enum pipe_format color_format;
+   struct kms_display *kdpy;
+   int width, height;
+
+   struct pipe_texture *textures[NUM_NATIVE_ATTACHMENTS];
+   unsigned int sequence_number;
+   struct kms_framebuffer front_fb, back_fb;
+
+   boolean is_shown;
+   struct kms_crtc current_crtc;
+};
+
+struct kms_config {
+   struct native_config base;
+};
+
+struct kms_connector {
+   struct native_connector base;
+
+   uint32_t connector_id;
+   drmModeConnectorPtr connector;
+   struct kms_mode *kms_modes;
+   int num_modes;
+};
+
+struct kms_mode {
+   struct native_mode base;
+   drmModeModeInfo mode;
+};
+
+static INLINE struct kms_display *
+kms_display(const struct native_display *ndpy)
+{
+   return (struct kms_display *) ndpy;
+}
+
+static INLINE struct kms_surface *
+kms_surface(const struct native_surface *nsurf)
+{
+   return (struct kms_surface *) nsurf;
+}
+
+static INLINE struct kms_config *
+kms_config(const struct native_config *nconf)
+{
+   return (struct kms_config *) nconf;
+}
+
+static INLINE struct kms_connector *
+kms_connector(const struct native_connector *nconn)
+{
+   return (struct kms_connector *) nconn;
+}
+
+static INLINE struct kms_mode *
+kms_mode(const struct native_mode *nmode)
+{
+   return (struct kms_mode *) nmode;
+}
+
+#endif /* _NATIVE_KMS_H_ */
diff --git a/src/gallium/state_trackers/egl/x11/native_dri2.c b/src/gallium/state_trackers/egl/x11/native_dri2.c
new file mode 100644
index 00000000000..07f82d878c5
--- /dev/null
+++ b/src/gallium/state_trackers/egl/x11/native_dri2.c
@@ -0,0 +1,705 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2009-2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#include "util/u_memory.h"
+#include "util/u_math.h"
+#include "util/u_format.h"
+#include "pipe/p_compiler.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+#include "state_tracker/drm_api.h"
+#include "egllog.h"
+
+#include "native_x11.h"
+#include "x11_screen.h"
+
+enum dri2_surface_type {
+   DRI2_SURFACE_TYPE_WINDOW,
+   DRI2_SURFACE_TYPE_PIXMAP,
+   DRI2_SURFACE_TYPE_PBUFFER
+};
+
+struct dri2_display {
+   struct native_display base;
+   Display *dpy;
+   boolean own_dpy;
+
+   struct drm_api *api;
+   struct x11_screen *xscr;
+   int xscr_number;
+
+   struct dri2_config *configs;
+   int num_configs;
+};
+
+struct dri2_surface {
+   struct native_surface base;
+   Drawable drawable;
+   enum dri2_surface_type type;
+   enum pipe_format color_format;
+   struct dri2_display *dri2dpy;
+
+   struct pipe_texture *pbuffer_textures[NUM_NATIVE_ATTACHMENTS];
+   boolean have_back, have_fake;
+   int width, height;
+   unsigned int sequence_number;
+};
+
+struct dri2_config {
+   struct native_config base;
+};
+
+static INLINE struct dri2_display *
+dri2_display(const struct native_display *ndpy)
+{
+   return (struct dri2_display *) ndpy;
+}
+
+static INLINE struct dri2_surface *
+dri2_surface(const struct native_surface *nsurf)
+{
+   return (struct dri2_surface *) nsurf;
+}
+
+static INLINE struct dri2_config *
+dri2_config(const struct native_config *nconf)
+{
+   return (struct dri2_config *) nconf;
+}
+
+static boolean
+dri2_surface_flush_frontbuffer(struct native_surface *nsurf)
+{
+   struct dri2_surface *dri2surf = dri2_surface(nsurf);
+   struct dri2_display *dri2dpy = dri2surf->dri2dpy;
+
+   /* pbuffer is private */
+   if (dri2surf->type == DRI2_SURFACE_TYPE_PBUFFER)
+      return TRUE;
+
+   /* copy to real front buffer */
+   if (dri2surf->have_fake)
+      x11_drawable_copy_buffers(dri2dpy->xscr, dri2surf->drawable,
+            0, 0, dri2surf->width, dri2surf->height,
+            DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft);
+
+   return TRUE;
+}
+
+static boolean
+dri2_surface_swap_buffers(struct native_surface *nsurf)
+{
+   struct dri2_surface *dri2surf = dri2_surface(nsurf);
+   struct dri2_display *dri2dpy = dri2surf->dri2dpy;
+
+   /* pbuffer is private */
+   if (dri2surf->type == DRI2_SURFACE_TYPE_PBUFFER)
+      return TRUE;
+
+   /* copy to front buffer */
+   if (dri2surf->have_back)
+      x11_drawable_copy_buffers(dri2dpy->xscr, dri2surf->drawable,
+            0, 0, dri2surf->width, dri2surf->height,
+            DRI2BufferBackLeft, DRI2BufferFrontLeft);
+
+   /* and update fake front buffer */
+   if (dri2surf->have_fake)
+      x11_drawable_copy_buffers(dri2dpy->xscr, dri2surf->drawable,
+            0, 0, dri2surf->width, dri2surf->height,
+            DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft);
+
+   return TRUE;
+}
+
+static boolean
+dri2_surface_validate(struct native_surface *nsurf, uint attachment_mask,
+                      unsigned int *seq_num, struct pipe_texture **textures,
+                      int *width, int *height)
+{
+   struct dri2_surface *dri2surf = dri2_surface(nsurf);
+   struct dri2_display *dri2dpy = dri2surf->dri2dpy;
+   unsigned int dri2atts[NUM_NATIVE_ATTACHMENTS];
+   struct pipe_texture templ;
+   struct x11_drawable_buffer *xbufs;
+   int num_ins, num_outs, att, i;
+
+   if (attachment_mask) {
+      memset(&templ, 0, sizeof(templ));
+      templ.target = PIPE_TEXTURE_2D;
+      templ.last_level = 0;
+      templ.width0 = dri2surf->width;
+      templ.height0 = dri2surf->height;
+      templ.depth0 = 1;
+      templ.format = dri2surf->color_format;
+      templ.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET;
+
+      if (textures)
+         memset(textures, 0, sizeof(*textures) * NUM_NATIVE_ATTACHMENTS);
+   }
+
+   /* create textures for pbuffer */
+   if (dri2surf->type == DRI2_SURFACE_TYPE_PBUFFER) {
+      struct pipe_screen *screen = dri2dpy->base.screen;
+
+      for (att = 0; att < NUM_NATIVE_ATTACHMENTS; att++) {
+         struct pipe_texture *ptex = dri2surf->pbuffer_textures[att];
+
+         /* delay the allocation */
+         if (!native_attachment_mask_test(attachment_mask, att))
+            continue;
+
+         if (!ptex) {
+            ptex = screen->texture_create(screen, &templ);
+            dri2surf->pbuffer_textures[att] = ptex;
+         }
+
+         if (textures)
+            pipe_texture_reference(&textures[att], ptex);
+      }
+
+      if (seq_num)
+         *seq_num = dri2surf->sequence_number;
+      if (width)
+         *width = dri2surf->width;
+      if (height)
+         *height = dri2surf->height;
+
+      return TRUE;
+   }
+
+   /* prepare the attachments */
+   num_ins = 0;
+   for (att = 0; att < NUM_NATIVE_ATTACHMENTS; att++) {
+      if (native_attachment_mask_test(attachment_mask, att)) {
+         unsigned int dri2att;
+
+         switch (att) {
+         case NATIVE_ATTACHMENT_FRONT_LEFT:
+            dri2att = DRI2BufferFrontLeft;
+            break;
+         case NATIVE_ATTACHMENT_BACK_LEFT:
+            dri2att = DRI2BufferBackLeft;
+            break;
+         case NATIVE_ATTACHMENT_FRONT_RIGHT:
+            dri2att = DRI2BufferFrontRight;
+            break;
+         case NATIVE_ATTACHMENT_BACK_RIGHT:
+            dri2att = DRI2BufferBackRight;
+            break;
+         default:
+            assert(0);
+            dri2att = 0;
+            break;
+         }
+
+         dri2atts[num_ins] = dri2att;
+         num_ins++;
+      }
+   }
+
+   dri2surf->have_back = FALSE;
+   dri2surf->have_fake = FALSE;
+
+   /* remember old geometry */
+   templ.width0 = dri2surf->width;
+   templ.height0 = dri2surf->height;
+
+   xbufs = x11_drawable_get_buffers(dri2dpy->xscr, dri2surf->drawable,
+                                    &dri2surf->width, &dri2surf->height,
+                                    dri2atts, FALSE, num_ins, &num_outs);
+   if (!xbufs)
+      return FALSE;
+
+   if (templ.width0 != dri2surf->width || templ.height0 != dri2surf->height) {
+      /* are there cases where the buffers change and the geometry doesn't? */
+      dri2surf->sequence_number++;
+
+      templ.width0 = dri2surf->width;
+      templ.height0 = dri2surf->height;
+   }
+
+   for (i = 0; i < num_outs; i++) {
+      struct x11_drawable_buffer *xbuf = &xbufs[i];
+      const char *desc;
+      enum native_attachment natt;
+
+      switch (xbuf->attachment) {
+      case DRI2BufferFrontLeft:
+         natt = NATIVE_ATTACHMENT_FRONT_LEFT;
+         desc = "DRI2 Front Buffer";
+         break;
+      case DRI2BufferFakeFrontLeft:
+         natt = NATIVE_ATTACHMENT_FRONT_LEFT;
+         desc = "DRI2 Fake Front Buffer";
+         dri2surf->have_fake = TRUE;
+         break;
+      case DRI2BufferBackLeft:
+         natt = NATIVE_ATTACHMENT_BACK_LEFT;
+         desc = "DRI2 Back Buffer";
+         dri2surf->have_back = TRUE;
+         break;
+      default:
+         desc = NULL;
+         break;
+      }
+
+      if (!desc || !native_attachment_mask_test(attachment_mask, natt) ||
+          (textures && textures[natt])) {
+         if (!desc)
+            _eglLog(_EGL_WARNING, "unknown buffer %d", xbuf->attachment);
+         else if (!native_attachment_mask_test(attachment_mask, natt))
+            _eglLog(_EGL_WARNING, "unexpected buffer %d", xbuf->attachment);
+         else
+            _eglLog(_EGL_WARNING, "both real and fake front buffers are listed");
+         continue;
+      }
+
+      if (textures) {
+         struct pipe_texture *ptex =
+            dri2dpy->api->texture_from_shared_handle(dri2dpy->api,
+                  dri2dpy->base.screen, &templ,
+                  desc, xbuf->pitch, xbuf->name);
+         if (ptex) {
+            /* the caller owns the textures */
+            textures[natt] = ptex;
+         }
+      }
+   }
+
+   free(xbufs);
+
+   if (seq_num)
+      *seq_num = dri2surf->sequence_number;
+   if (width)
+      *width = dri2surf->width;
+   if (height)
+      *height = dri2surf->height;
+
+   return TRUE;
+}
+
+static void
+dri2_surface_wait(struct native_surface *nsurf)
+{
+   struct dri2_surface *dri2surf = dri2_surface(nsurf);
+   struct dri2_display *dri2dpy = dri2surf->dri2dpy;
+
+   if (dri2surf->have_fake) {
+      x11_drawable_copy_buffers(dri2dpy->xscr, dri2surf->drawable,
+            0, 0, dri2surf->width, dri2surf->height,
+            DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft);
+   }
+}
+
+static void
+dri2_surface_destroy(struct native_surface *nsurf)
+{
+   struct dri2_surface *dri2surf = dri2_surface(nsurf);
+   int i;
+
+   for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
+      struct pipe_texture *ptex = dri2surf->pbuffer_textures[i];
+      pipe_texture_reference(&ptex, NULL);
+   }
+
+   if (dri2surf->drawable)
+      x11_drawable_enable_dri2(dri2surf->dri2dpy->xscr,
+            dri2surf->drawable, FALSE);
+   free(dri2surf);
+}
+
+static struct dri2_surface *
+dri2_display_create_surface(struct native_display *ndpy,
+                            enum dri2_surface_type type,
+                            Drawable drawable,
+                            const struct native_config *nconf)
+{
+   struct dri2_display *dri2dpy = dri2_display(ndpy);
+   struct dri2_config *dri2conf = dri2_config(nconf);
+   struct dri2_surface *dri2surf;
+
+   dri2surf = CALLOC_STRUCT(dri2_surface);
+   if (!dri2surf)
+      return NULL;
+
+   if (drawable)
+      x11_drawable_enable_dri2(dri2dpy->xscr, drawable, TRUE);
+
+   dri2surf->dri2dpy = dri2dpy;
+   dri2surf->type = type;
+   dri2surf->drawable = drawable;
+   dri2surf->color_format = dri2conf->base.color_format;
+
+   dri2surf->base.destroy = dri2_surface_destroy;
+   dri2surf->base.swap_buffers = dri2_surface_swap_buffers;
+   dri2surf->base.flush_frontbuffer = dri2_surface_flush_frontbuffer;
+   dri2surf->base.validate = dri2_surface_validate;
+   dri2surf->base.wait = dri2_surface_wait;
+
+   return dri2surf;
+}
+
+static struct native_surface *
+dri2_display_create_window_surface(struct native_display *ndpy,
+                                   EGLNativeWindowType win,
+                                   const struct native_config *nconf)
+{
+   struct dri2_surface *dri2surf;
+
+   dri2surf = dri2_display_create_surface(ndpy, DRI2_SURFACE_TYPE_WINDOW,
+         (Drawable) win, nconf);
+   return (dri2surf) ? &dri2surf->base : NULL;
+}
+
+static struct native_surface *
+dri2_display_create_pixmap_surface(struct native_display *ndpy,
+                                   EGLNativePixmapType pix,
+                                   const struct native_config *nconf)
+{
+   struct dri2_surface *dri2surf;
+
+   dri2surf = dri2_display_create_surface(ndpy, DRI2_SURFACE_TYPE_PIXMAP,
+         (Drawable) pix, nconf);
+   return (dri2surf) ? &dri2surf->base : NULL;
+}
+
+static struct native_surface *
+dri2_display_create_pbuffer_surface(struct native_display *ndpy,
+                                    const struct native_config *nconf,
+                                    uint width, uint height)
+{
+   struct dri2_surface *dri2surf;
+
+   dri2surf = dri2_display_create_surface(ndpy, DRI2_SURFACE_TYPE_PBUFFER,
+         (Drawable) None, nconf);
+   if (dri2surf) {
+      dri2surf->width = width;
+      dri2surf->height = height;
+   }
+   return (dri2surf) ? &dri2surf->base : NULL;
+}
+
+static struct pipe_context *
+dri2_display_create_context(struct native_display *ndpy, void *context_private)
+{
+   struct dri2_display *dri2dpy = dri2_display(ndpy);
+   struct pipe_context *pctx;
+
+   pctx = dri2dpy->api->create_context(dri2dpy->api, dri2dpy->base.screen);
+   if (pctx)
+      pctx->priv = context_private;
+   return pctx;
+}
+
+static int
+choose_color_format(const __GLcontextModes *mode, enum pipe_format formats[32])
+{
+   int count = 0;
+
+   switch (mode->rgbBits) {
+   case 32:
+      formats[count++] = PIPE_FORMAT_A8R8G8B8_UNORM;
+      formats[count++] = PIPE_FORMAT_B8G8R8A8_UNORM;
+      break;
+   case 24:
+      formats[count++] = PIPE_FORMAT_X8R8G8B8_UNORM;
+      formats[count++] = PIPE_FORMAT_B8G8R8X8_UNORM;
+      formats[count++] = PIPE_FORMAT_A8R8G8B8_UNORM;
+      formats[count++] = PIPE_FORMAT_B8G8R8A8_UNORM;
+      break;
+   case 16:
+      formats[count++] = PIPE_FORMAT_R5G6B5_UNORM;
+      break;
+   default:
+      break;
+   }
+
+   return count;
+}
+
+static int
+choose_depth_stencil_format(const __GLcontextModes *mode,
+                            enum pipe_format formats[32])
+{
+   int count = 0;
+
+   switch (mode->depthBits) {
+   case 32:
+      formats[count++] = PIPE_FORMAT_Z32_UNORM;
+      break;
+   case 24:
+      if (mode->stencilBits) {
+         formats[count++] = PIPE_FORMAT_S8Z24_UNORM;
+         formats[count++] = PIPE_FORMAT_Z24S8_UNORM;
+      }
+      else {
+         formats[count++] = PIPE_FORMAT_X8Z24_UNORM;
+         formats[count++] = PIPE_FORMAT_Z24X8_UNORM;
+      }
+      break;
+   case 16:
+      formats[count++] = PIPE_FORMAT_Z16_UNORM;
+      break;
+   default:
+      break;
+   }
+
+   return count;
+}
+
+static boolean
+is_format_supported(struct pipe_screen *screen,
+                    enum pipe_format fmt, boolean is_color)
+{
+   return screen->is_format_supported(screen, fmt, PIPE_TEXTURE_2D,
+         (is_color) ? PIPE_TEXTURE_USAGE_RENDER_TARGET :
+         PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
+}
+
+static boolean
+dri2_display_convert_config(struct native_display *ndpy,
+                            const __GLcontextModes *mode,
+                            struct native_config *nconf)
+{
+   enum pipe_format formats[32];
+   int num_formats, i;
+
+   if (!(mode->renderType & GLX_RGBA_BIT) || !mode->rgbMode)
+      return FALSE;
+
+   /* skip single-buffered configs */
+   if (!mode->doubleBufferMode)
+      return FALSE;
+
+   nconf->mode = *mode;
+   nconf->mode.renderType = GLX_RGBA_BIT;
+   nconf->mode.rgbMode = TRUE;
+   /* pbuffer is allocated locally and is always supported */
+   nconf->mode.drawableType |= GLX_PBUFFER_BIT;
+   /* the swap method is always copy */
+   nconf->mode.swapMethod = GLX_SWAP_COPY_OML;
+
+   /* fix up */
+   nconf->mode.rgbBits =
+      nconf->mode.redBits + nconf->mode.greenBits +
+      nconf->mode.blueBits + nconf->mode.alphaBits;
+   if (!(nconf->mode.drawableType & GLX_WINDOW_BIT)) {
+      nconf->mode.visualID = 0;
+      nconf->mode.visualType = GLX_NONE;
+   }
+   if (!(nconf->mode.drawableType & GLX_PBUFFER_BIT)) {
+      nconf->mode.bindToTextureRgb = FALSE;
+      nconf->mode.bindToTextureRgba = FALSE;
+   }
+
+   nconf->color_format = PIPE_FORMAT_NONE;
+   nconf->depth_format = PIPE_FORMAT_NONE;
+   nconf->stencil_format = PIPE_FORMAT_NONE;
+
+   /* choose color format */
+   num_formats = choose_color_format(mode, formats);
+   for (i = 0; i < num_formats; i++) {
+      if (is_format_supported(ndpy->screen, formats[i], TRUE)) {
+         nconf->color_format = formats[i];
+         break;
+      }
+   }
+   if (nconf->color_format == PIPE_FORMAT_NONE)
+      return FALSE;
+
+   /* choose depth/stencil format */
+   num_formats = choose_depth_stencil_format(mode, formats);
+   for (i = 0; i < num_formats; i++) {
+      if (is_format_supported(ndpy->screen, formats[i], FALSE)) {
+         nconf->depth_format = formats[i];
+         nconf->stencil_format = formats[i];
+         break;
+      }
+   }
+   if ((nconf->mode.depthBits && nconf->depth_format == PIPE_FORMAT_NONE) ||
+       (nconf->mode.stencilBits && nconf->stencil_format == PIPE_FORMAT_NONE))
+      return FALSE;
+
+   return TRUE;
+}
+
+static const struct native_config **
+dri2_display_get_configs(struct native_display *ndpy, int *num_configs)
+{
+   struct dri2_display *dri2dpy = dri2_display(ndpy);
+   const struct native_config **configs;
+   int i;
+
+   /* first time */
+   if (!dri2dpy->configs) {
+      const __GLcontextModes *modes;
+      int num_modes, count;
+
+      modes = x11_screen_get_glx_configs(dri2dpy->xscr);
+      if (!modes)
+         return NULL;
+      num_modes = x11_context_modes_count(modes);
+
+      dri2dpy->configs = calloc(num_modes, sizeof(*dri2dpy->configs));
+      if (!dri2dpy->configs)
+         return NULL;
+
+      count = 0;
+      for (i = 0; i < num_modes; i++) {
+         struct native_config *nconf = &dri2dpy->configs[count].base;
+         if (dri2_display_convert_config(&dri2dpy->base, modes, nconf))
+            count++;
+         modes = modes->next;
+      }
+
+      dri2dpy->num_configs = count;
+   }
+
+   configs = malloc(dri2dpy->num_configs * sizeof(*configs));
+   if (configs) {
+      for (i = 0; i < dri2dpy->num_configs; i++)
+         configs[i] = (const struct native_config *) &dri2dpy->configs[i];
+      if (num_configs)
+         *num_configs = dri2dpy->num_configs;
+   }
+
+   return configs;
+}
+
+static boolean
+dri2_display_is_pixmap_supported(struct native_display *ndpy,
+                                 EGLNativePixmapType pix,
+                                 const struct native_config *nconf)
+{
+   struct dri2_display *dri2dpy = dri2_display(ndpy);
+   uint depth, nconf_depth;
+
+   depth = x11_drawable_get_depth(dri2dpy->xscr, (Drawable) pix);
+   nconf_depth = util_format_get_blocksizebits(nconf->color_format);
+
+   /* simple depth match for now */
+   return (depth == nconf_depth || (depth == 24 && depth + 8 == nconf_depth));
+}
+
+static void
+dri2_display_destroy(struct native_display *ndpy)
+{
+   struct dri2_display *dri2dpy = dri2_display(ndpy);
+
+   if (dri2dpy->configs)
+      free(dri2dpy->configs);
+
+   if (dri2dpy->base.screen)
+      dri2dpy->base.screen->destroy(dri2dpy->base.screen);
+
+   if (dri2dpy->xscr)
+      x11_screen_destroy(dri2dpy->xscr);
+   if (dri2dpy->own_dpy)
+      XCloseDisplay(dri2dpy->dpy);
+   if (dri2dpy->api && dri2dpy->api->destroy)
+      dri2dpy->api->destroy(dri2dpy->api);
+   free(dri2dpy);
+}
+
+/**
+ * Initialize DRI2 and pipe screen.
+ */
+static boolean
+dri2_display_init_screen(struct native_display *ndpy)
+{
+   struct dri2_display *dri2dpy = dri2_display(ndpy);
+   const char *driver = dri2dpy->api->name;
+   struct drm_create_screen_arg arg;
+   int fd;
+
+   if (!x11_screen_support(dri2dpy->xscr, X11_SCREEN_EXTENSION_DRI2) ||
+       !x11_screen_support(dri2dpy->xscr, X11_SCREEN_EXTENSION_GLX)) {
+      _eglLog(_EGL_WARNING, "GLX/DRI2 is not supported");
+      return FALSE;
+   }
+
+   fd = x11_screen_enable_dri2(dri2dpy->xscr, driver);
+   if (fd < 0)
+      return FALSE;
+
+   memset(&arg, 0, sizeof(arg));
+   arg.mode = DRM_CREATE_NORMAL;
+   dri2dpy->base.screen = dri2dpy->api->create_screen(dri2dpy->api, fd, &arg);
+   if (!dri2dpy->base.screen) {
+      _eglLog(_EGL_WARNING, "failed to create DRM screen");
+      return FALSE;
+   }
+
+   return TRUE;
+}
+
+struct native_display *
+x11_create_dri2_display(EGLNativeDisplayType dpy, struct drm_api *api)
+{
+   struct dri2_display *dri2dpy;
+
+   dri2dpy = CALLOC_STRUCT(dri2_display);
+   if (!dri2dpy)
+      return NULL;
+
+   dri2dpy->api = api;
+   if (!dri2dpy->api) {
+      _eglLog(_EGL_WARNING, "failed to create DRM API");
+      free(dri2dpy);
+      return NULL;
+   }
+
+   dri2dpy->dpy = dpy;
+   if (!dri2dpy->dpy) {
+      dri2dpy->dpy = XOpenDisplay(NULL);
+      if (!dri2dpy->dpy) {
+         dri2_display_destroy(&dri2dpy->base);
+         return NULL;
+      }
+      dri2dpy->own_dpy = TRUE;
+   }
+
+   dri2dpy->xscr_number = DefaultScreen(dri2dpy->dpy);
+   dri2dpy->xscr = x11_screen_create(dri2dpy->dpy, dri2dpy->xscr_number);
+   if (!dri2dpy->xscr) {
+      dri2_display_destroy(&dri2dpy->base);
+      return NULL;
+   }
+
+   if (!dri2_display_init_screen(&dri2dpy->base)) {
+      dri2_display_destroy(&dri2dpy->base);
+      return NULL;
+   }
+
+   dri2dpy->base.destroy = dri2_display_destroy;
+   dri2dpy->base.get_configs = dri2_display_get_configs;
+   dri2dpy->base.is_pixmap_supported = dri2_display_is_pixmap_supported;
+   dri2dpy->base.create_context = dri2_display_create_context;
+   dri2dpy->base.create_window_surface = dri2_display_create_window_surface;
+   dri2dpy->base.create_pixmap_surface = dri2_display_create_pixmap_surface;
+   dri2dpy->base.create_pbuffer_surface = dri2_display_create_pbuffer_surface;
+
+   return &dri2dpy->base;
+}
diff --git a/src/gallium/state_trackers/egl/x11/native_x11.c b/src/gallium/state_trackers/egl/x11/native_x11.c
new file mode 100644
index 00000000000..695ab88010b
--- /dev/null
+++ b/src/gallium/state_trackers/egl/x11/native_x11.c
@@ -0,0 +1,148 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2009-2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#include <string.h>
+#include "util/u_debug.h"
+#include "util/u_memory.h"
+#include "state_tracker/drm_api.h"
+#include "egllog.h"
+
+#include "native_x11.h"
+#include "x11_screen.h"
+
+#define X11_PROBE_MAGIC 0x11980BE /* "X11PROBE" */
+
+static struct drm_api *api;
+
+static void
+x11_probe_destroy(struct native_probe *nprobe)
+{
+   if (nprobe->data)
+      free(nprobe->data);
+   free(nprobe);
+}
+
+struct native_probe *
+native_create_probe(EGLNativeDisplayType dpy)
+{
+   struct native_probe *nprobe;
+   struct x11_screen *xscr;
+   int scr;
+   const char *driver_name = NULL;
+   Display *xdpy;
+
+   nprobe = CALLOC_STRUCT(native_probe);
+   if (!nprobe)
+      return NULL;
+
+   xdpy = dpy;
+   if (!xdpy) {
+      xdpy = XOpenDisplay(NULL);
+      if (!xdpy) {
+         free(nprobe);
+         return NULL;
+      }
+   }
+
+   scr = DefaultScreen(xdpy);
+   xscr = x11_screen_create(xdpy, scr);
+   if (xscr) {
+      if (x11_screen_support(xscr, X11_SCREEN_EXTENSION_DRI2)) {
+         driver_name = x11_screen_probe_dri2(xscr);
+         nprobe->data = strdup(driver_name);
+      }
+
+      x11_screen_destroy(xscr);
+   }
+
+   if (xdpy != dpy)
+      XCloseDisplay(xdpy);
+
+   nprobe->magic = X11_PROBE_MAGIC;
+   nprobe->display = dpy;
+
+   nprobe->destroy = x11_probe_destroy;
+
+   return nprobe;
+}
+
+enum native_probe_result
+native_get_probe_result(struct native_probe *nprobe)
+{
+   if (!nprobe || nprobe->magic != X11_PROBE_MAGIC)
+      return NATIVE_PROBE_UNKNOWN;
+
+   if (!api)
+      api = drm_api_create();
+
+   /* this is a software driver */
+   if (!api)
+      return NATIVE_PROBE_SUPPORTED;
+
+   /* the display does not support DRI2 or the driver mismatches */
+   if (!nprobe->data || strcmp(api->name, (const char *) nprobe->data) != 0)
+      return NATIVE_PROBE_FALLBACK;
+
+   return NATIVE_PROBE_EXACT;
+}
+
+const char *
+native_get_name(void)
+{
+   static char x11_name[32];
+
+   if (!api)
+      api = drm_api_create();
+
+   if (api)
+      snprintf(x11_name, sizeof(x11_name), "X11/%s", api->name);
+   else
+      snprintf(x11_name, sizeof(x11_name), "X11");
+
+   return x11_name;
+}
+
+struct native_display *
+native_create_display(EGLNativeDisplayType dpy)
+{
+   struct native_display *ndpy = NULL;
+   boolean force_sw;
+
+   if (!api)
+      api = drm_api_create();
+
+   force_sw = debug_get_bool_option("EGL_SOFTWARE", FALSE);
+   if (api && !force_sw) {
+      ndpy = x11_create_dri2_display(dpy, api);
+   }
+
+   if (!ndpy) {
+      EGLint level = (force_sw) ? _EGL_INFO : _EGL_WARNING;
+
+      _eglLog(level, "use software fallback");
+      ndpy = x11_create_ximage_display(dpy, TRUE);
+   }
+
+   return ndpy;
+}
diff --git a/src/gallium/state_trackers/egl/x11/native_x11.h b/src/gallium/state_trackers/egl/x11/native_x11.h
new file mode 100644
index 00000000000..622ddac5df6
--- /dev/null
+++ b/src/gallium/state_trackers/egl/x11/native_x11.h
@@ -0,0 +1,37 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2009-2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#ifndef _NATIVE_X11_H_
+#define _NATIVE_X11_H_
+
+#include "state_tracker/drm_api.h"
+#include "common/native.h"
+
+struct native_display *
+x11_create_ximage_display(EGLNativeDisplayType dpy, boolean use_xshm);
+
+struct native_display *
+x11_create_dri2_display(EGLNativeDisplayType dpy, struct drm_api *api);
+
+#endif /* _NATIVE_X11_H_ */
diff --git a/src/gallium/state_trackers/egl/x11/native_ximage.c b/src/gallium/state_trackers/egl/x11/native_ximage.c
new file mode 100644
index 00000000000..dfa8df22234
--- /dev/null
+++ b/src/gallium/state_trackers/egl/x11/native_ximage.c
@@ -0,0 +1,694 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2009-2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#include <assert.h>
+#include <sys/ipc.h>
+#include <sys/types.h>
+#include <sys/shm.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/extensions/XShm.h>
+#include "util/u_memory.h"
+#include "util/u_math.h"
+#include "util/u_format.h"
+#include "pipe/p_compiler.h"
+#include "pipe/internal/p_winsys_screen.h"
+#include "softpipe/sp_winsys.h"
+#include "egllog.h"
+
+#include "sw_winsys.h"
+#include "native_x11.h"
+#include "x11_screen.h"
+
+enum ximage_surface_type {
+   XIMAGE_SURFACE_TYPE_WINDOW,
+   XIMAGE_SURFACE_TYPE_PIXMAP,
+   XIMAGE_SURFACE_TYPE_PBUFFER
+};
+
+struct ximage_display {
+   struct native_display base;
+   Display *dpy;
+   boolean own_dpy;
+
+   struct x11_screen *xscr;
+   int xscr_number;
+
+   boolean use_xshm;
+
+   struct pipe_winsys *winsys;
+   struct ximage_config *configs;
+   int num_configs;
+};
+
+struct ximage_buffer {
+   XImage *ximage;
+
+   struct pipe_texture *texture;
+   XShmSegmentInfo *shm_info;
+   boolean xshm_attached;
+};
+
+struct ximage_surface {
+   struct native_surface base;
+   Drawable drawable;
+   enum ximage_surface_type type;
+   enum pipe_format color_format;
+   XVisualInfo visual;
+   struct ximage_display *xdpy;
+
+   int width, height;
+   GC gc;
+
+   struct ximage_buffer buffers[NUM_NATIVE_ATTACHMENTS];
+   unsigned int sequence_number;
+};
+
+struct ximage_config {
+   struct native_config base;
+   const XVisualInfo *visual;
+};
+
+static INLINE struct ximage_display *
+ximage_display(const struct native_display *ndpy)
+{
+   return (struct ximage_display *) ndpy;
+}
+
+static INLINE struct ximage_surface *
+ximage_surface(const struct native_surface *nsurf)
+{
+   return (struct ximage_surface *) nsurf;
+}
+
+static INLINE struct ximage_config *
+ximage_config(const struct native_config *nconf)
+{
+   return (struct ximage_config *) nconf;
+}
+
+static void
+ximage_surface_free_buffer(struct native_surface *nsurf,
+                           enum native_attachment which)
+{
+   struct ximage_surface *xsurf = ximage_surface(nsurf);
+   struct ximage_buffer *xbuf = &xsurf->buffers[which];
+
+   pipe_texture_reference(&xbuf->texture, NULL);
+
+   if (xbuf->shm_info) {
+      if (xbuf->xshm_attached)
+         XShmDetach(xsurf->xdpy->dpy, xbuf->shm_info);
+      if (xbuf->shm_info->shmaddr != (void *) -1)
+         shmdt(xbuf->shm_info->shmaddr);
+      if (xbuf->shm_info->shmid != -1)
+         shmctl(xbuf->shm_info->shmid, IPC_RMID, 0);
+
+      xbuf->shm_info->shmaddr = (void *) -1;
+      xbuf->shm_info->shmid = -1;
+   }
+}
+
+static boolean
+ximage_surface_alloc_buffer(struct native_surface *nsurf,
+                            enum native_attachment which)
+{
+   struct ximage_surface *xsurf = ximage_surface(nsurf);
+   struct ximage_buffer *xbuf = &xsurf->buffers[which];
+   struct pipe_screen *screen = xsurf->xdpy->base.screen;
+   struct pipe_texture templ;
+
+   /* free old data */
+   if (xbuf->texture)
+      ximage_surface_free_buffer(&xsurf->base, which);
+
+   memset(&templ, 0, sizeof(templ));
+   templ.target = PIPE_TEXTURE_2D;
+   templ.format = xsurf->color_format;
+   templ.width0 = xsurf->width;
+   templ.height0 = xsurf->height;
+   templ.depth0 = 1;
+   templ.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET;
+
+   if (xbuf->shm_info) {
+      struct pipe_buffer *pbuf;
+      unsigned stride, size;
+      void *addr = NULL;
+
+      stride = util_format_get_stride(xsurf->color_format, xsurf->width);
+      /* alignment should depend on visual? */
+      stride = align(stride, 4);
+      size = stride * xsurf->height;
+
+      /* create and attach shm object */
+      xbuf->shm_info->shmid = shmget(IPC_PRIVATE, size, 0755);
+      if (xbuf->shm_info->shmid != -1) {
+         xbuf->shm_info->shmaddr =
+            shmat(xbuf->shm_info->shmid, NULL, 0);
+         if (xbuf->shm_info->shmaddr != (void *) -1) {
+            if (XShmAttach(xsurf->xdpy->dpy, xbuf->shm_info)) {
+               addr = xbuf->shm_info->shmaddr;
+               xbuf->xshm_attached = TRUE;
+            }
+         }
+      }
+
+      if (addr) {
+         pbuf = screen->user_buffer_create(screen, addr, size);
+         if (pbuf) {
+            xbuf->texture =
+               screen->texture_blanket(screen, &templ, &stride, pbuf);
+            pipe_buffer_reference(&pbuf, NULL);
+         }
+      }
+   }
+   else {
+      xbuf->texture = screen->texture_create(screen, &templ);
+   }
+
+   /* clean up the buffer if allocation failed */
+   if (!xbuf->texture)
+      ximage_surface_free_buffer(&xsurf->base, which);
+
+   return (xbuf->texture != NULL);
+}
+
+static boolean
+ximage_surface_draw_buffer(struct native_surface *nsurf,
+                           enum native_attachment which)
+{
+   struct ximage_surface *xsurf = ximage_surface(nsurf);
+   struct ximage_buffer *xbuf = &xsurf->buffers[which];
+   struct pipe_screen *screen = xsurf->xdpy->base.screen;
+   struct pipe_transfer *transfer;
+
+   if (xsurf->type == XIMAGE_SURFACE_TYPE_PBUFFER)
+      return TRUE;
+
+   assert(xsurf->drawable && xbuf->ximage && xbuf->texture);
+
+   transfer = screen->get_tex_transfer(screen, xbuf->texture,
+         0, 0, 0, PIPE_TRANSFER_READ, 0, 0, xsurf->width, xsurf->height);
+   if (!transfer)
+      return FALSE;
+
+   xbuf->ximage->bytes_per_line = transfer->stride;
+   xbuf->ximage->data = screen->transfer_map(screen, transfer);
+   if (!xbuf->ximage->data) {
+      screen->tex_transfer_destroy(transfer);
+      return FALSE;
+   }
+
+
+   if (xbuf->shm_info)
+      XShmPutImage(xsurf->xdpy->dpy, xsurf->drawable, xsurf->gc,
+            xbuf->ximage, 0, 0, 0, 0, xsurf->width, xsurf->height, False);
+   else
+      XPutImage(xsurf->xdpy->dpy, xsurf->drawable, xsurf->gc,
+            xbuf->ximage, 0, 0, 0, 0, xsurf->width, xsurf->height);
+
+   xbuf->ximage->data = NULL;
+   screen->transfer_unmap(screen, transfer);
+
+   /*
+    * softpipe allows the pipe transfer to be re-used, but we don't want to
+    * rely on that behavior.
+    */
+   screen->tex_transfer_destroy(transfer);
+
+   XSync(xsurf->xdpy->dpy, FALSE);
+
+   return TRUE;
+}
+
+static boolean
+ximage_surface_flush_frontbuffer(struct native_surface *nsurf)
+{
+   return ximage_surface_draw_buffer(nsurf, NATIVE_ATTACHMENT_FRONT_LEFT);
+}
+
+static boolean
+ximage_surface_swap_buffers(struct native_surface *nsurf)
+{
+   struct ximage_surface *xsurf = ximage_surface(nsurf);
+   struct ximage_buffer *xfront, *xback, xtmp;
+
+   xfront = &xsurf->buffers[NATIVE_ATTACHMENT_FRONT_LEFT];
+   xback = &xsurf->buffers[NATIVE_ATTACHMENT_BACK_LEFT];
+
+   /* draw the back buffer directly if there is no front buffer */
+   if (!xfront->texture)
+      return ximage_surface_draw_buffer(nsurf, NATIVE_ATTACHMENT_BACK_LEFT);
+
+   /* swap the buffers */
+   xtmp = *xfront;
+   *xfront = *xback;
+   *xback = xtmp;
+
+   /* the front/back textures are swapped */
+   xsurf->sequence_number++;
+
+   return ximage_surface_draw_buffer(nsurf, NATIVE_ATTACHMENT_FRONT_LEFT);
+}
+
+static void
+ximage_surface_update_geometry(struct native_surface *nsurf)
+{
+   struct ximage_surface *xsurf = ximage_surface(nsurf);
+   Status ok;
+   Window root;
+   int x, y;
+   unsigned int w, h, border, depth;
+
+   /* pbuffer has fixed geometry */
+   if (xsurf->type == XIMAGE_SURFACE_TYPE_PBUFFER)
+      return;
+
+   ok = XGetGeometry(xsurf->xdpy->dpy, xsurf->drawable,
+         &root, &x, &y, &w, &h, &border, &depth);
+   if (ok) {
+      xsurf->width = w;
+      xsurf->height = h;
+   }
+}
+
+static boolean
+ximage_surface_validate(struct native_surface *nsurf, uint attachment_mask,
+                        unsigned int *seq_num, struct pipe_texture **textures,
+                        int *width, int *height)
+{
+   struct ximage_surface *xsurf = ximage_surface(nsurf);
+   boolean new_buffers = FALSE;
+   int att;
+
+   ximage_surface_update_geometry(&xsurf->base);
+
+   for (att = 0; att < NUM_NATIVE_ATTACHMENTS; att++) {
+      struct ximage_buffer *xbuf = &xsurf->buffers[att];
+
+      /* delay the allocation */
+      if (!native_attachment_mask_test(attachment_mask, att))
+         continue;
+
+      /* reallocate the texture */
+      if (!xbuf->texture ||
+          xsurf->width != xbuf->texture->width0 ||
+          xsurf->height != xbuf->texture->height0) {
+         new_buffers = TRUE;
+         if (ximage_surface_alloc_buffer(&xsurf->base, att)) {
+            /* update ximage */
+            if (xbuf->ximage) {
+               xbuf->ximage->width = xsurf->width;
+               xbuf->ximage->height = xsurf->height;
+            }
+         }
+      }
+
+      if (textures) {
+         textures[att] = NULL;
+         pipe_texture_reference(&textures[att], xbuf->texture);
+      }
+   }
+
+   /* increase the sequence number so that caller knows */
+   if (new_buffers)
+      xsurf->sequence_number++;
+
+   if (seq_num)
+      *seq_num = xsurf->sequence_number;
+   if (width)
+      *width = xsurf->width;
+   if (height)
+      *height = xsurf->height;
+
+   return TRUE;
+}
+
+static void
+ximage_surface_wait(struct native_surface *nsurf)
+{
+   struct ximage_surface *xsurf = ximage_surface(nsurf);
+   XSync(xsurf->xdpy->dpy, FALSE);
+   /* TODO XGetImage and update the front texture */
+}
+
+static void
+ximage_surface_destroy(struct native_surface *nsurf)
+{
+   struct ximage_surface *xsurf = ximage_surface(nsurf);
+   int i;
+
+   for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
+      struct ximage_buffer *xbuf = &xsurf->buffers[i];
+      ximage_surface_free_buffer(&xsurf->base, i);
+      /* xbuf->shm_info is owned by xbuf->ximage? */
+      if (xbuf->ximage) {
+         XDestroyImage(xbuf->ximage);
+         xbuf->ximage = NULL;
+      }
+   }
+
+   if (xsurf->type != XIMAGE_SURFACE_TYPE_PBUFFER)
+      XFreeGC(xsurf->xdpy->dpy, xsurf->gc);
+   free(xsurf);
+}
+
+static struct ximage_surface *
+ximage_display_create_surface(struct native_display *ndpy,
+                              enum ximage_surface_type type,
+                              Drawable drawable,
+                              const struct native_config *nconf)
+{
+   struct ximage_display *xdpy = ximage_display(ndpy);
+   struct ximage_config *xconf = ximage_config(nconf);
+   struct ximage_surface *xsurf;
+   int i;
+
+   xsurf = CALLOC_STRUCT(ximage_surface);
+   if (!xsurf)
+      return NULL;
+
+   xsurf->xdpy = xdpy;
+   xsurf->type = type;
+   xsurf->color_format = xconf->base.color_format;
+   xsurf->drawable = drawable;
+
+   if (xsurf->type != XIMAGE_SURFACE_TYPE_PBUFFER) {
+      xsurf->drawable = drawable;
+      xsurf->visual = *xconf->visual;
+
+      xsurf->gc = XCreateGC(xdpy->dpy, xsurf->drawable, 0, NULL);
+      if (!xsurf->gc) {
+         free(xsurf);
+         return NULL;
+      }
+
+      for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
+         struct ximage_buffer *xbuf = &xsurf->buffers[i];
+
+         if (xdpy->use_xshm) {
+            xbuf->shm_info = calloc(1, sizeof(*xbuf->shm_info));
+            if (xbuf->shm_info) {
+               /* initialize shm info */
+               xbuf->shm_info->shmid = -1;
+               xbuf->shm_info->shmaddr = (void *) -1;
+               xbuf->shm_info->readOnly = TRUE;
+
+               xbuf->ximage = XShmCreateImage(xsurf->xdpy->dpy,
+                     xsurf->visual.visual,
+                     xsurf->visual.depth,
+                     ZPixmap, NULL,
+                     xbuf->shm_info,
+                     0, 0);
+            }
+         }
+         else {
+            xbuf->ximage = XCreateImage(xsurf->xdpy->dpy,
+                  xsurf->visual.visual,
+                  xsurf->visual.depth,
+                  ZPixmap, 0,   /* format, offset */
+                  NULL,         /* data */
+                  0, 0,         /* size */
+                  8,            /* bitmap_pad */
+                  0);           /* bytes_per_line */
+         }
+
+         if (!xbuf->ximage) {
+            XFreeGC(xdpy->dpy, xsurf->gc);
+            free(xsurf);
+            return NULL;
+         }
+      }
+   }
+
+   xsurf->base.destroy = ximage_surface_destroy;
+   xsurf->base.swap_buffers = ximage_surface_swap_buffers;
+   xsurf->base.flush_frontbuffer = ximage_surface_flush_frontbuffer;
+   xsurf->base.validate = ximage_surface_validate;
+   xsurf->base.wait = ximage_surface_wait;
+
+   return xsurf;
+}
+
+static struct native_surface *
+ximage_display_create_window_surface(struct native_display *ndpy,
+                                     EGLNativeWindowType win,
+                                     const struct native_config *nconf)
+{
+   struct ximage_surface *xsurf;
+
+   xsurf = ximage_display_create_surface(ndpy, XIMAGE_SURFACE_TYPE_WINDOW,
+         (Drawable) win, nconf);
+   return (xsurf) ? &xsurf->base : NULL;
+}
+
+static struct native_surface *
+ximage_display_create_pixmap_surface(struct native_display *ndpy,
+                                     EGLNativePixmapType pix,
+                                     const struct native_config *nconf)
+{
+   struct ximage_surface *xsurf;
+
+   xsurf = ximage_display_create_surface(ndpy, XIMAGE_SURFACE_TYPE_PIXMAP,
+         (Drawable) pix, nconf);
+   return (xsurf) ? &xsurf->base : NULL;
+}
+
+static struct native_surface *
+ximage_display_create_pbuffer_surface(struct native_display *ndpy,
+                                      const struct native_config *nconf,
+                                      uint width, uint height)
+{
+   struct ximage_surface *xsurf;
+
+   xsurf = ximage_display_create_surface(ndpy, XIMAGE_SURFACE_TYPE_PBUFFER,
+         (Drawable) None, nconf);
+   if (xsurf) {
+      xsurf->width = width;
+      xsurf->height = height;
+   }
+   return (xsurf) ? &xsurf->base : NULL;
+}
+
+static struct pipe_context *
+ximage_display_create_context(struct native_display *ndpy,
+                              void *context_private)
+{
+   struct pipe_context *pctx = softpipe_create(ndpy->screen);
+   if (pctx)
+      pctx->priv = context_private;
+   return pctx;
+}
+
+static enum pipe_format
+choose_format(const XVisualInfo *vinfo)
+{
+   enum pipe_format fmt;
+   /* TODO elaborate the formats */
+   switch (vinfo->depth) {
+   case 32:
+      fmt = PIPE_FORMAT_A8R8G8B8_UNORM;
+      break;
+   case 24:
+      fmt = PIPE_FORMAT_X8R8G8B8_UNORM;
+      break;
+   case 16:
+      fmt = PIPE_FORMAT_R5G6B5_UNORM;
+      break;
+   default:
+      fmt = PIPE_FORMAT_NONE;
+      break;
+   }
+
+   return fmt;
+}
+
+static const struct native_config **
+ximage_display_get_configs(struct native_display *ndpy, int *num_configs)
+{
+   struct ximage_display *xdpy = ximage_display(ndpy);
+   const struct native_config **configs;
+   int i;
+
+   /* first time */
+   if (!xdpy->configs) {
+      const XVisualInfo *visuals;
+      int num_visuals, count, j;
+
+      visuals = x11_screen_get_visuals(xdpy->xscr, &num_visuals);
+      if (!visuals)
+         return NULL;
+
+      /*
+       * Create two configs for each visual.
+       * One with depth/stencil buffer; one without
+       */
+      xdpy->configs = calloc(num_visuals * 2, sizeof(*xdpy->configs));
+      if (!xdpy->configs)
+         return NULL;
+
+      count = 0;
+      for (i = 0; i < num_visuals; i++) {
+         for (j = 0; j < 2; j++) {
+            struct ximage_config *xconf = &xdpy->configs[count];
+            __GLcontextModes *mode = &xconf->base.mode;
+
+            xconf->visual = &visuals[i];
+            xconf->base.color_format = choose_format(xconf->visual);
+            if (xconf->base.color_format == PIPE_FORMAT_NONE)
+               continue;
+
+            x11_screen_convert_visual(xdpy->xscr, xconf->visual, mode);
+            /* support double buffer mode */
+            mode->doubleBufferMode = TRUE;
+
+            xconf->base.depth_format = PIPE_FORMAT_NONE;
+            xconf->base.stencil_format = PIPE_FORMAT_NONE;
+            /* create the second config with depth/stencil buffer */
+            if (j == 1) {
+               xconf->base.depth_format = PIPE_FORMAT_S8Z24_UNORM;
+               xconf->base.stencil_format = PIPE_FORMAT_S8Z24_UNORM;
+               mode->depthBits = 24;
+               mode->stencilBits = 8;
+               mode->haveDepthBuffer = TRUE;
+               mode->haveStencilBuffer = TRUE;
+            }
+
+            mode->maxPbufferWidth = 4096;
+            mode->maxPbufferHeight = 4096;
+            mode->maxPbufferPixels = 4096 * 4096;
+            mode->drawableType =
+               GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT;
+            mode->swapMethod = GLX_SWAP_EXCHANGE_OML;
+
+            if (mode->alphaBits)
+               mode->bindToTextureRgba = TRUE;
+            else
+               mode->bindToTextureRgb = TRUE;
+
+            count++;
+         }
+      }
+
+      xdpy->num_configs = count;
+   }
+
+   configs = malloc(xdpy->num_configs * sizeof(*configs));
+   if (configs) {
+      for (i = 0; i < xdpy->num_configs; i++)
+         configs[i] = (const struct native_config *) &xdpy->configs[i];
+      if (num_configs)
+         *num_configs = xdpy->num_configs;
+   }
+   return configs;
+}
+
+static boolean
+ximage_display_is_pixmap_supported(struct native_display *ndpy,
+                                   EGLNativePixmapType pix,
+                                   const struct native_config *nconf)
+{
+   struct ximage_display *xdpy = ximage_display(ndpy);
+   enum pipe_format fmt;
+   uint depth;
+
+   depth = x11_drawable_get_depth(xdpy->xscr, (Drawable) pix);
+   switch (depth) {
+   case 32:
+      fmt = PIPE_FORMAT_A8R8G8B8_UNORM;
+      break;
+   case 24:
+      fmt = PIPE_FORMAT_X8R8G8B8_UNORM;
+      break;
+   case 16:
+      fmt = PIPE_FORMAT_R5G6B5_UNORM;
+      break;
+   default:
+      fmt = PIPE_FORMAT_NONE;
+      break;
+   }
+
+   return (fmt == nconf->color_format);
+}
+
+static void
+ximage_display_destroy(struct native_display *ndpy)
+{
+   struct ximage_display *xdpy = ximage_display(ndpy);
+
+   if (xdpy->configs)
+      free(xdpy->configs);
+
+   xdpy->base.screen->destroy(xdpy->base.screen);
+   free(xdpy->winsys);
+
+   x11_screen_destroy(xdpy->xscr);
+   if (xdpy->own_dpy)
+      XCloseDisplay(xdpy->dpy);
+   free(xdpy);
+}
+
+struct native_display *
+x11_create_ximage_display(EGLNativeDisplayType dpy, boolean use_xshm)
+{
+   struct ximage_display *xdpy;
+
+   xdpy = CALLOC_STRUCT(ximage_display);
+   if (!xdpy)
+      return NULL;
+
+   xdpy->dpy = dpy;
+   if (!xdpy->dpy) {
+      xdpy->dpy = XOpenDisplay(NULL);
+      if (!xdpy->dpy) {
+         free(xdpy);
+         return NULL;
+      }
+      xdpy->own_dpy = TRUE;
+   }
+
+   xdpy->xscr_number = DefaultScreen(xdpy->dpy);
+   xdpy->xscr = x11_screen_create(xdpy->dpy, xdpy->xscr_number);
+   if (!xdpy->xscr) {
+      free(xdpy);
+      return NULL;
+   }
+
+   xdpy->use_xshm =
+      (use_xshm && x11_screen_support(xdpy->xscr, X11_SCREEN_EXTENSION_XSHM));
+
+   xdpy->winsys = create_sw_winsys();
+   xdpy->base.screen = softpipe_create_screen(xdpy->winsys);
+
+   xdpy->base.destroy = ximage_display_destroy;
+
+   xdpy->base.get_configs = ximage_display_get_configs;
+   xdpy->base.is_pixmap_supported = ximage_display_is_pixmap_supported;
+   xdpy->base.create_context = ximage_display_create_context;
+   xdpy->base.create_window_surface = ximage_display_create_window_surface;
+   xdpy->base.create_pixmap_surface = ximage_display_create_pixmap_surface;
+   xdpy->base.create_pbuffer_surface = ximage_display_create_pbuffer_surface;
+
+   return &xdpy->base;
+}
diff --git a/src/gallium/state_trackers/egl/x11/sw_winsys.c b/src/gallium/state_trackers/egl/x11/sw_winsys.c
new file mode 100644
index 00000000000..6ee3ede38cb
--- /dev/null
+++ b/src/gallium/state_trackers/egl/x11/sw_winsys.c
@@ -0,0 +1,231 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+/**
+ * Totally software-based winsys layer.
+ * Note that the one winsys function that we can't implement here
+ * is flush_frontbuffer().
+ * Whoever uses this code will have to provide that.
+ *
+ * Authors: Brian Paul
+ */
+
+
+#include "pipe/internal/p_winsys_screen.h"
+#include "pipe/p_state.h"
+#include "pipe/p_inlines.h"
+#include "util/u_format.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+
+#include "sw_winsys.h"
+
+
+
+/** Subclass of pipe_winsys */
+struct sw_pipe_winsys
+{
+   struct pipe_winsys Base;
+   /* no extra fields for now */
+};
+
+
+/** subclass of pipe_buffer */
+struct sw_pipe_buffer
+{
+   struct pipe_buffer Base;
+   boolean UserBuffer;  /** Is this a user-space buffer? */
+   void *Data;
+   void *Mapped;
+};
+
+
+/** cast wrapper */
+static INLINE struct sw_pipe_buffer *
+sw_pipe_buffer(struct pipe_buffer *b)
+{
+   return (struct sw_pipe_buffer *) b;
+}
+
+
+static const char *
+get_name(struct pipe_winsys *pws)
+{
+   return "software";
+}
+
+
+/** Create new pipe_buffer and allocate storage of given size */
+static struct pipe_buffer *
+buffer_create(struct pipe_winsys *pws, 
+              unsigned alignment, 
+              unsigned usage,
+              unsigned size)
+{
+   struct sw_pipe_buffer *buffer = CALLOC_STRUCT(sw_pipe_buffer);
+   if (!buffer)
+      return NULL;
+
+   pipe_reference_init(&buffer->Base.reference, 1);
+   buffer->Base.alignment = alignment;
+   buffer->Base.usage = usage;
+   buffer->Base.size = size;
+
+   /* align to 16-byte multiple for Cell */
+   buffer->Data = align_malloc(size, MAX2(alignment, 16));
+
+   return &buffer->Base;
+}
+
+
+/**
+ * Create buffer which wraps user-space data.
+ */
+static struct pipe_buffer *
+user_buffer_create(struct pipe_winsys *pws, void *ptr, unsigned bytes)
+{
+   struct sw_pipe_buffer *buffer = CALLOC_STRUCT(sw_pipe_buffer);
+   if (!buffer)
+      return NULL;
+
+   pipe_reference_init(&buffer->Base.reference, 1);
+   buffer->Base.size = bytes;
+   buffer->UserBuffer = TRUE;
+   buffer->Data = ptr;
+
+   return &buffer->Base;
+}
+
+
+static void *
+buffer_map(struct pipe_winsys *pws, struct pipe_buffer *buf, unsigned flags)
+{
+   struct sw_pipe_buffer *buffer = sw_pipe_buffer(buf);
+   buffer->Mapped = buffer->Data;
+   return buffer->Mapped;
+}
+
+
+static void
+buffer_unmap(struct pipe_winsys *pws, struct pipe_buffer *buf)
+{
+   struct sw_pipe_buffer *buffer = sw_pipe_buffer(buf);
+   buffer->Mapped = NULL;
+}
+
+
+static void
+buffer_destroy(struct pipe_buffer *buf)
+{
+   struct sw_pipe_buffer *buffer = sw_pipe_buffer(buf);
+
+   if (buffer->Data && !buffer->UserBuffer) {
+      align_free(buffer->Data);
+      buffer->Data = NULL;
+   }
+
+   free(buffer);
+}
+
+
+static struct pipe_buffer *
+surface_buffer_create(struct pipe_winsys *winsys,
+                      unsigned width, unsigned height,
+                      enum pipe_format format, 
+                      unsigned usage,
+                      unsigned tex_usage,
+                      unsigned *stride)
+{
+   const unsigned alignment = 64;
+   unsigned nblocksy;
+
+   nblocksy = util_format_get_nblocksy(format, height);
+   *stride = align(util_format_get_stride(format, width), alignment);
+
+   return winsys->buffer_create(winsys, alignment,
+                                usage,
+                                *stride * nblocksy);
+}
+
+
+static void
+fence_reference(struct pipe_winsys *sws, struct pipe_fence_handle **ptr,
+                struct pipe_fence_handle *fence)
+{
+   /* no-op */
+}
+
+
+static int
+fence_signalled(struct pipe_winsys *sws, struct pipe_fence_handle *fence,
+                unsigned flag)
+{
+   /* no-op */
+   return 0;
+}
+
+
+static int
+fence_finish(struct pipe_winsys *sws, struct pipe_fence_handle *fence,
+             unsigned flag)
+{
+   /* no-op */
+   return 0;
+}
+
+
+/**
+ * Create/return a new pipe_winsys object.
+ */
+struct pipe_winsys *
+create_sw_winsys(void)
+{
+   struct sw_pipe_winsys *ws = CALLOC_STRUCT(sw_pipe_winsys);
+   if (!ws)
+      return NULL;
+
+   /* Fill in this struct with callbacks that pipe will need to
+    * communicate with the window system, buffer manager, etc. 
+    */
+   ws->Base.buffer_create = buffer_create;
+   ws->Base.user_buffer_create = user_buffer_create;
+   ws->Base.buffer_map = buffer_map;
+   ws->Base.buffer_unmap = buffer_unmap;
+   ws->Base.buffer_destroy = buffer_destroy;
+
+   ws->Base.surface_buffer_create = surface_buffer_create;
+
+   ws->Base.fence_reference = fence_reference;
+   ws->Base.fence_signalled = fence_signalled;
+   ws->Base.fence_finish = fence_finish;
+
+   ws->Base.flush_frontbuffer = NULL; /* not implemented here! */
+
+   ws->Base.get_name = get_name;
+
+   return &ws->Base;
+}
diff --git a/src/gallium/state_trackers/egl/x11/sw_winsys.h b/src/gallium/state_trackers/egl/x11/sw_winsys.h
new file mode 100644
index 00000000000..f96c5a14b0a
--- /dev/null
+++ b/src/gallium/state_trackers/egl/x11/sw_winsys.h
@@ -0,0 +1,40 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+
+#ifndef SW_WINSYS_H
+#define SW_WINSYS_H
+
+
+struct pipe_winsys;
+
+
+extern struct pipe_winsys *
+create_sw_winsys(void);
+
+
+#endif /* SW_WINSYS_H */
diff --git a/src/gallium/state_trackers/egl/x11/x11_screen.c b/src/gallium/state_trackers/egl/x11/x11_screen.c
new file mode 100644
index 00000000000..76ce45ee574
--- /dev/null
+++ b/src/gallium/state_trackers/egl/x11/x11_screen.c
@@ -0,0 +1,453 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2009-2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <X11/Xlibint.h>
+#include <X11/extensions/XShm.h>
+#include "util/u_memory.h"
+#include "util/u_math.h"
+#include "util/u_format.h"
+#include "xf86drm.h"
+#include "egllog.h"
+
+#include "x11_screen.h"
+#include "dri2.h"
+#include "glxinit.h"
+
+struct x11_screen {
+   Display *dpy;
+   int number;
+
+   /*
+    * This is used to fetch GLX visuals/fbconfigs.  It uses code from egl_xdri.
+    * It might be better to rewrite the part in Xlib or XCB.
+    */
+   __GLXdisplayPrivate *glx_dpy;
+
+   int dri_major, dri_minor;
+   char *dri_driver;
+   char *dri_device;
+   int dri_fd;
+
+   XVisualInfo *visuals;
+   int num_visuals;
+
+   /* cached values for x11_drawable_get_depth */
+   Drawable last_drawable;
+   unsigned int last_depth;
+};
+
+
+/**
+ * Create a X11 screen.
+ */
+struct x11_screen *
+x11_screen_create(Display *dpy, int screen)
+{
+   struct x11_screen *xscr;
+
+   if (screen >= ScreenCount(dpy))
+      return NULL;
+
+   xscr = CALLOC_STRUCT(x11_screen);
+   if (xscr) {
+      xscr->dpy = dpy;
+      xscr->number = screen;
+
+      xscr->dri_major = -1;
+      xscr->dri_fd = -1;
+   }
+   return xscr;
+}
+
+/**
+ * Destroy a X11 screen.
+ */
+void
+x11_screen_destroy(struct x11_screen *xscr)
+{
+   if (xscr->dri_fd >= 0)
+      close(xscr->dri_fd);
+   if (xscr->dri_driver)
+      Xfree(xscr->dri_driver);
+   if (xscr->dri_device)
+      Xfree(xscr->dri_device);
+
+   /* xscr->glx_dpy will be destroyed with the X display */
+
+   if (xscr->visuals)
+      XFree(xscr->visuals);
+   free(xscr);
+}
+
+static boolean
+x11_screen_init_dri2(struct x11_screen *xscr)
+{
+   if (xscr->dri_major < 0) {
+      int eventBase, errorBase;
+
+      if (!DRI2QueryExtension(xscr->dpy, &eventBase, &errorBase) ||
+          !DRI2QueryVersion(xscr->dpy, &xscr->dri_major, &xscr->dri_minor))
+         xscr->dri_major = -1;
+   }
+   return (xscr->dri_major >= 0);
+}
+
+static boolean
+x11_screen_init_glx(struct x11_screen *xscr)
+{
+   if (!xscr->glx_dpy)
+      xscr->glx_dpy = __glXInitialize(xscr->dpy);
+   return (xscr->glx_dpy != NULL);
+}
+
+/**
+ * Return true if the screen supports the extension.
+ */
+boolean
+x11_screen_support(struct x11_screen *xscr, enum x11_screen_extension ext)
+{
+   boolean supported = FALSE;
+
+   switch (ext) {
+   case X11_SCREEN_EXTENSION_XSHM:
+      supported = XShmQueryExtension(xscr->dpy);
+      break;
+   case X11_SCREEN_EXTENSION_GLX:
+      supported = x11_screen_init_glx(xscr);
+      break;
+   case X11_SCREEN_EXTENSION_DRI2:
+      supported = x11_screen_init_dri2(xscr);
+      break;
+   default:
+      break;
+   }
+
+   return supported;
+}
+
+/**
+ * Return the X visuals.
+ */
+const XVisualInfo *
+x11_screen_get_visuals(struct x11_screen *xscr, int *num_visuals)
+{
+   if (!xscr->visuals) {
+      XVisualInfo vinfo_template;
+      vinfo_template.screen = xscr->number;
+      xscr->visuals = XGetVisualInfo(xscr->dpy, VisualScreenMask,
+            &vinfo_template, &xscr->num_visuals);
+   }
+
+   if (num_visuals)
+      *num_visuals = xscr->num_visuals;
+   return xscr->visuals;
+}
+
+void
+x11_screen_convert_visual(struct x11_screen *xscr, const XVisualInfo *visual,
+                          __GLcontextModes *mode)
+{
+   int r, g, b, a;
+   int visual_type;
+
+   r = util_bitcount(visual->red_mask);
+   g = util_bitcount(visual->green_mask);
+   b = util_bitcount(visual->blue_mask);
+   a = visual->depth - (r + g + b);
+#if defined(__cplusplus) || defined(c_plusplus)
+   visual_type = visual->c_class;
+#else
+   visual_type = visual->class;
+#endif
+
+   /* convert to GLX visual type */
+   switch (visual_type) {
+   case TrueColor:
+      visual_type = GLX_TRUE_COLOR;
+      break;
+   case DirectColor:
+      visual_type = GLX_DIRECT_COLOR;
+      break;
+   case PseudoColor:
+      visual_type = GLX_PSEUDO_COLOR;
+      break;
+   case StaticColor:
+      visual_type = GLX_STATIC_COLOR;
+      break;
+   case GrayScale:
+      visual_type = GLX_GRAY_SCALE;
+      break;
+   case StaticGray:
+      visual_type = GLX_STATIC_GRAY;
+      break;
+   default:
+      visual_type = GLX_NONE;
+      break;
+   }
+
+   mode->rgbBits = r + g + b + a;
+   mode->redBits = r;
+   mode->greenBits = g;
+   mode->blueBits = b;
+   mode->alphaBits = a;
+   mode->visualID = visual->visualid;
+   mode->visualType = visual_type;
+
+   /* sane defaults */
+   mode->renderType = GLX_RGBA_BIT;
+   mode->rgbMode = TRUE;
+   mode->visualRating = GLX_SLOW_CONFIG;
+   mode->xRenderable = TRUE;
+}
+
+/**
+ * Return the GLX fbconfigs.
+ */
+const __GLcontextModes *
+x11_screen_get_glx_configs(struct x11_screen *xscr)
+{
+   return (x11_screen_init_glx(xscr))
+      ? xscr->glx_dpy->screenConfigs[xscr->number].configs
+      : NULL;
+}
+
+/**
+ * Return the GLX visuals.
+ */
+const __GLcontextModes *
+x11_screen_get_glx_visuals(struct x11_screen *xscr)
+{
+   return (x11_screen_init_glx(xscr))
+      ? xscr->glx_dpy->screenConfigs[xscr->number].visuals
+      : NULL;
+}
+
+static boolean
+x11_screen_is_driver_equal(struct x11_screen *xscr, const char *driver)
+{
+   return (strcmp(xscr->dri_driver, driver) == 0);
+}
+
+/**
+ * Probe the screen for the DRI2 driver name.
+ */
+const char *
+x11_screen_probe_dri2(struct x11_screen *xscr)
+{
+   /* get the driver name and the device name */
+   if (!xscr->dri_driver) {
+      if (!DRI2Connect(xscr->dpy, RootWindow(xscr->dpy, xscr->number),
+               &xscr->dri_driver, &xscr->dri_device))
+         xscr->dri_driver = xscr->dri_device = NULL;
+   }
+
+   return xscr->dri_driver;
+}
+
+/**
+ * Enable DRI2 and returns the file descriptor of the DRM device.  The file
+ * descriptor will be closed automatically when the screen is destoryed.
+ */
+int
+x11_screen_enable_dri2(struct x11_screen *xscr, const char *driver)
+{
+   if (xscr->dri_fd < 0) {
+      int fd;
+      drm_magic_t magic;
+
+      /* get the driver name and the device name first */
+      if (!x11_screen_probe_dri2(xscr))
+         return -1;
+
+      if (!x11_screen_is_driver_equal(xscr, driver)) {
+         _eglLog(_EGL_WARNING, "Driver mismatch: %s != %s",
+               xscr->dri_driver, driver);
+         return -1;
+      }
+
+      fd = open(xscr->dri_device, O_RDWR);
+      if (fd < 0) {
+         _eglLog(_EGL_WARNING, "failed to open %s", xscr->dri_device);
+         return -1;
+      }
+
+      memset(&magic, 0, sizeof(magic));
+      if (drmGetMagic(fd, &magic)) {
+         _eglLog(_EGL_WARNING, "failed to get magic");
+         close(fd);
+         return -1;
+      }
+
+      if (!DRI2Authenticate(xscr->dpy,
+               RootWindow(xscr->dpy, xscr->number), magic)) {
+         _eglLog(_EGL_WARNING, "failed to authenticate magic");
+         close(fd);
+         return -1;
+      }
+
+      xscr->dri_fd = fd;
+   }
+
+   return xscr->dri_fd;
+}
+
+/**
+ * Create/Destroy the DRI drawable.
+ */
+void
+x11_drawable_enable_dri2(struct x11_screen *xscr,
+                         Drawable drawable, boolean on)
+{
+   if (on)
+      DRI2CreateDrawable(xscr->dpy, drawable);
+   else
+      DRI2DestroyDrawable(xscr->dpy, drawable);
+}
+
+/**
+ * Copy between buffers of the DRI2 drawable.
+ */
+void
+x11_drawable_copy_buffers(struct x11_screen *xscr, Drawable drawable,
+                          int x, int y, int width, int height,
+                          int src_buf, int dst_buf)
+{
+   XRectangle rect;
+   XserverRegion region;
+
+   rect.x = x;
+   rect.y = y;
+   rect.width = width;
+   rect.height = height;
+
+   region = XFixesCreateRegion(xscr->dpy, &rect, 1);
+   DRI2CopyRegion(xscr->dpy, drawable, region, dst_buf, src_buf);
+   XFixesDestroyRegion(xscr->dpy, region);
+}
+
+/**
+ * Get the buffers of the DRI2 drawable.  The returned array should be freed.
+ */
+struct x11_drawable_buffer *
+x11_drawable_get_buffers(struct x11_screen *xscr, Drawable drawable,
+                         int *width, int *height, unsigned int *attachments,
+                         boolean with_format, int num_ins, int *num_outs)
+{
+   DRI2Buffer *dri2bufs;
+
+   if (with_format)
+      dri2bufs = DRI2GetBuffersWithFormat(xscr->dpy, drawable, width, height,
+            attachments, num_ins, num_outs);
+   else
+      dri2bufs = DRI2GetBuffers(xscr->dpy, drawable, width, height,
+            attachments, num_ins, num_outs);
+
+   return (struct x11_drawable_buffer *) dri2bufs;
+}
+
+/**
+ * Return the depth of a drawable.
+ *
+ * Unlike other drawable functions, the drawable needs not be a DRI2 drawable.
+ */
+uint
+x11_drawable_get_depth(struct x11_screen *xscr, Drawable drawable)
+{
+   unsigned int depth;
+
+   if (drawable != xscr->last_drawable) {
+      Window root;
+      int x, y;
+      unsigned int w, h, border;
+      Status ok;
+
+      ok = XGetGeometry(xscr->dpy, drawable, &root,
+            &x, &y, &w, &h, &border, &depth);
+      if (!ok)
+         depth = 0;
+
+      xscr->last_drawable = drawable;
+      xscr->last_depth = depth;
+   }
+   else {
+      depth = xscr->last_depth;
+   }
+
+   return depth;
+}
+
+/**
+ * Create a mode list of the given size.
+ */
+__GLcontextModes *
+x11_context_modes_create(unsigned count)
+{
+   const size_t size = sizeof(__GLcontextModes);
+   __GLcontextModes *base = NULL;
+   __GLcontextModes **next;
+   unsigned i;
+
+   next = &base;
+   for (i = 0; i < count; i++) {
+      *next = (__GLcontextModes *) calloc(1, size);
+      if (*next == NULL) {
+         x11_context_modes_destroy(base);
+         base = NULL;
+         break;
+      }
+      next = &((*next)->next);
+   }
+
+   return base;
+}
+
+/**
+ * Destroy a mode list.
+ */
+void
+x11_context_modes_destroy(__GLcontextModes *modes)
+{
+   while (modes != NULL) {
+      __GLcontextModes *next = modes->next;
+      free(modes);
+      modes = next;
+   }
+}
+
+/**
+ * Return the number of the modes in the mode list.
+ */
+unsigned
+x11_context_modes_count(const __GLcontextModes *modes)
+{
+   const __GLcontextModes *mode;
+   int count = 0;
+   for (mode = modes; mode; mode = mode->next)
+      count++;
+   return count;
+}
diff --git a/src/gallium/state_trackers/egl/x11/x11_screen.h b/src/gallium/state_trackers/egl/x11/x11_screen.h
new file mode 100644
index 00000000000..5432858ac3e
--- /dev/null
+++ b/src/gallium/state_trackers/egl/x11/x11_screen.h
@@ -0,0 +1,105 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.8
+ *
+ * Copyright (C) 2009-2010 Chia-I Wu <[email protected]>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+#ifndef _X11_SCREEN_H_
+#define _X11_SCREEN_H_
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/extensions/dri2tokens.h>
+#include "pipe/p_compiler.h"
+#include "common/native.h"
+
+enum x11_screen_extension {
+   X11_SCREEN_EXTENSION_XSHM,
+   X11_SCREEN_EXTENSION_GLX,
+   X11_SCREEN_EXTENSION_DRI2,
+};
+
+/* the same as DRI2Buffer */
+struct x11_drawable_buffer {
+   unsigned int attachment;
+   unsigned int name;
+   unsigned int pitch;
+   unsigned int cpp;
+   unsigned int flags;
+};
+
+struct x11_screen;
+
+struct x11_screen *
+x11_screen_create(Display *dpy, int screen);
+
+void
+x11_screen_destroy(struct x11_screen *xscr);
+
+boolean
+x11_screen_support(struct x11_screen *xscr, enum x11_screen_extension ext);
+
+const XVisualInfo *
+x11_screen_get_visuals(struct x11_screen *xscr, int *num_visuals);
+
+void
+x11_screen_convert_visual(struct x11_screen *xscr, const XVisualInfo *visual,
+                          __GLcontextModes *mode);
+
+const __GLcontextModes *
+x11_screen_get_glx_configs(struct x11_screen *xscr);
+
+const __GLcontextModes *
+x11_screen_get_glx_visuals(struct x11_screen *xscr);
+
+const char *
+x11_screen_probe_dri2(struct x11_screen *xscr);
+
+int
+x11_screen_enable_dri2(struct x11_screen *xscr, const char *driver);
+
+__GLcontextModes *
+x11_context_modes_create(unsigned count);
+
+void
+x11_context_modes_destroy(__GLcontextModes *modes);
+
+unsigned
+x11_context_modes_count(const __GLcontextModes *modes);
+
+void
+x11_drawable_enable_dri2(struct x11_screen *xscr,
+                         Drawable drawable, boolean on);
+
+void
+x11_drawable_copy_buffers(struct x11_screen *xscr, Drawable drawable,
+                          int x, int y, int width, int height,
+                          int src_buf, int dst_buf);
+
+struct x11_drawable_buffer *
+x11_drawable_get_buffers(struct x11_screen *xscr, Drawable drawable,
+                         int *width, int *height, unsigned int *attachments,
+                         boolean with_format, int num_ins, int *num_outs);
+
+uint
+x11_drawable_get_depth(struct x11_screen *xscr, Drawable drawable);
+
+#endif /* _X11_SCREEN_H_ */