egl_dri2: Add wayland platform

4 files changed, 644 insertions, 0 deletions

diff --git a/src/egl/drivers/dri2/Makefile b/src/egl/drivers/dri2/Makefile
index 8e33bdd3da..89e9dd7970 100644
--- a/src/egl/drivers/dri2/Makefile
+++ b/src/egl/drivers/dri2/Makefile
@@ -24,4 +24,11 @@ ifeq ($(SHARED_GLAPI),1)
 EGL_CFLAGS += -DHAVE_SHARED_GLAPI
 endif
 
+ifneq ($(findstring wayland, $(EGL_PLATFORMS)),)
+EGL_SOURCES += platform_wayland.c
+EGL_INCLUDES += -DHAVE_WAYLAND_PLATFORM $(WAYLAND_CFLAGS) \
+		-I$(TOP)/src/egl/wayland
+EGL_LIBS += $(WAYLAND_LIBS)
+endif
+
 include ../Makefile.template
diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index fc479cffd0..3e5107756a 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -408,6 +408,12 @@ dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
       if (disp->Options.TestOnly)
          return EGL_TRUE;
       return dri2_initialize_drm(drv, disp);
+#ifdef HAVE_WAYLAND_PLATFORM
+   case _EGL_PLATFORM_WAYLAND:
+      if (disp->Options.TestOnly)
+         return EGL_TRUE;
+      return dri2_initialize_wayland(drv, disp);
+#endif
 #endif
 
    default:
diff --git a/src/egl/drivers/dri2/egl_dri2.h b/src/egl/drivers/dri2/egl_dri2.h
index f65319d2e9..72e887c95b 100644
--- a/src/egl/drivers/dri2/egl_dri2.h
+++ b/src/egl/drivers/dri2/egl_dri2.h
@@ -33,6 +33,11 @@
 #include <xcb/xfixes.h>
 #include <X11/Xlib-xcb.h>
 
+#ifdef HAVE_WAYLAND_PLATFORM
+#include <wayland-client.h>
+#include "wayland-egl-priv.h"
+#endif
+
 #include <GL/gl.h>
 #include <GL/internal/dri_interface.h>
 
@@ -76,6 +81,9 @@ struct dri2_egl_display
 
    __DRIdri2LoaderExtension  loader_extension;
    const __DRIextension     *extensions[3];
+#ifdef HAVE_WAYLAND_PLATFORM
+   struct wl_egl_display    *wl_dpy;
+#endif
 };
 
 struct dri2_egl_context
@@ -84,6 +92,22 @@ struct dri2_egl_context
    __DRIcontext *dri_context;
 };
 
+#ifdef HAVE_WAYLAND_PLATFORM
+enum wayland_buffer_type {
+   WL_BUFFER_FRONT,
+   WL_BUFFER_BACK,
+   WL_BUFFER_COUNT
+};
+
+#define __DRI_BUFFER_COUNT 10
+#endif
+
+enum dri2_surface_type {
+   DRI2_WINDOW_SURFACE,
+   DRI2_PIXMAP_SURFACE,
+   DRI2_PBUFFER_SURFACE
+};
+
 struct dri2_egl_surface
 {
    _EGLSurface          base;
@@ -94,8 +118,24 @@ struct dri2_egl_surface
    xcb_xfixes_region_t  region;
    int                  have_fake_front;
    int                  swap_interval;
+   enum dri2_surface_type type;
+#ifdef HAVE_WAYLAND_PLATFORM
+   struct wl_egl_window  *wl_win;
+   struct wl_egl_pixmap  *wl_pix;
+   struct wl_buffer      *wl_drm_buffer[WL_BUFFER_COUNT];
+   int                    dx;
+   int                    dy;
+   __DRIbuffer           *dri_buffers[__DRI_BUFFER_COUNT];
+   EGLBoolean             block_swap_buffers;
+#endif
 };
 
+struct dri2_egl_buffer {
+   __DRIbuffer *dri_buffer;
+   struct dri2_egl_display *dri2_dpy;
+};
+
+
 struct dri2_egl_config
 {
    _EGLConfig         base;
@@ -136,6 +176,9 @@ dri2_initialize_x11(_EGLDriver *drv, _EGLDisplay *disp);
 EGLBoolean
 dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp);
 
+EGLBoolean
+dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp);
+
 char *
 dri2_get_driver_for_fd(int fd);
 
diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c
new file mode 100644
index 0000000000..b223403615
--- /dev/null
+++ b/src/egl/drivers/dri2/platform_wayland.c
@@ -0,0 +1,588 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Kristian Høgsberg <krh@bitplanet.net>
+ *    Benjamin Franzke <benjaminfranzke@googlemail.com>
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <dlfcn.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include "egl_dri2.h"
+
+/**
+ * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
+ */
+static _EGLSurface *
+dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
+		    _EGLConfig *conf, EGLNativeWindowType window,
+		    const EGLint *attrib_list)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
+   struct dri2_egl_surface *dri2_surf;
+   struct dri2_egl_buffer *dri2_buf;
+   int i;
+
+   (void) drv;
+
+   dri2_surf = malloc(sizeof *dri2_surf);
+   if (!dri2_surf) {
+      _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
+      return NULL;
+   }
+   
+   if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
+      goto cleanup_surf;
+
+   for (i = 0; i < WL_BUFFER_COUNT; ++i)
+      dri2_surf->wl_drm_buffer[i] = NULL;
+
+   for (i = 0; i < __DRI_BUFFER_COUNT; ++i)
+      dri2_surf->dri_buffers[i] = NULL;
+
+   dri2_surf->block_swap_buffers = EGL_FALSE;
+
+   switch (type) {
+   case EGL_WINDOW_BIT:
+      dri2_surf->wl_win = (struct wl_egl_window *) window;
+      dri2_surf->type = DRI2_WINDOW_SURFACE;
+
+      dri2_surf->base.Width =  -1;
+      dri2_surf->base.Height = -1;
+      break;
+   case EGL_PIXMAP_BIT:
+      dri2_surf->wl_pix = (struct wl_egl_pixmap *) window;
+      dri2_surf->type = DRI2_PIXMAP_SURFACE;
+
+      dri2_surf->base.Width  = dri2_surf->wl_pix->width;
+      dri2_surf->base.Height = dri2_surf->wl_pix->height;
+
+      if (dri2_surf->wl_pix->name > 0) {
+         dri2_buf = dri2_surf->wl_pix->driver_private;
+         dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT] = dri2_buf->dri_buffer;
+      }
+      break;
+   default: 
+      goto cleanup_surf;
+   }
+
+   dri2_surf->dri_drawable = 
+      (*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen,
+					    dri2_conf->dri_config, dri2_surf);
+   if (dri2_surf->dri_drawable == NULL) {
+      _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
+      goto cleanup_dri_drawable;
+   }
+
+   return &dri2_surf->base;
+
+ cleanup_dri_drawable:
+   dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
+ cleanup_surf:
+   free(dri2_surf);
+
+   return NULL;
+}
+
+/**
+ * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
+ */
+static _EGLSurface *
+dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
+			   _EGLConfig *conf, EGLNativeWindowType window,
+			   const EGLint *attrib_list)
+{
+   return dri2_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
+			      window, attrib_list);
+}
+
+static _EGLSurface *
+dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
+			   _EGLConfig *conf, EGLNativePixmapType pixmap,
+			   const EGLint *attrib_list)
+{
+   return dri2_create_surface(drv, disp, EGL_PIXMAP_BIT, conf,
+			      pixmap, attrib_list);
+}
+
+/**
+ * Called via eglDestroySurface(), drv->API.DestroySurface().
+ */
+static EGLBoolean
+dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
+   int i;
+
+   (void) drv;
+
+   if (!_eglPutSurface(surf))
+      return EGL_TRUE;
+
+   (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
+
+   for (i = 0; i < WL_BUFFER_COUNT; ++i)
+      if (dri2_surf->wl_drm_buffer[i])
+         wl_buffer_destroy(dri2_surf->wl_drm_buffer[i]);
+
+   for (i = 0; i < __DRI_BUFFER_COUNT; ++i)
+      if (dri2_surf->dri_buffers[i] && !(i == __DRI_BUFFER_FRONT_LEFT &&
+          dri2_surf->type == DRI2_PIXMAP_SURFACE))
+         dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
+                                       dri2_surf->dri_buffers[i]);
+
+   free(surf);
+
+   return EGL_TRUE;
+}
+
+static void
+dri2_wl_egl_pixmap_destroy(struct wl_egl_pixmap *egl_pixmap)
+{
+   struct dri2_egl_buffer *dri2_buf = egl_pixmap->driver_private;
+
+   assert(dri2_buf);
+
+   dri2_buf->dri2_dpy->dri2->releaseBuffer(dri2_buf->dri2_dpy->dri_screen,
+                                           dri2_buf->dri_buffer);
+
+   free(dri2_buf);
+   
+   egl_pixmap->driver_private = NULL;
+   egl_pixmap->destroy = NULL;
+   egl_pixmap->name = 0;
+}
+
+static void
+dri2_process_front_buffer(struct dri2_egl_surface *dri2_surf, unsigned format)
+{
+   struct dri2_egl_display *dri2_dpy =
+      dri2_egl_display(dri2_surf->base.Resource.Display);
+   struct dri2_egl_buffer *dri2_buf;
+
+   /* allocate a back buffer for our double-buffered window*/
+   switch (dri2_surf->type) {
+   case DRI2_WINDOW_SURFACE:
+      dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT] = 
+         dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen,
+               __DRI_BUFFER_BACK_LEFT, format,
+               dri2_surf->base.Width, dri2_surf->base.Height);
+      break;
+   case DRI2_PIXMAP_SURFACE:
+      dri2_buf = malloc(sizeof *dri2_buf);
+      if (!dri2_buf)
+         return;
+
+      dri2_buf->dri_buffer = dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT];
+      dri2_buf->dri2_dpy   = dri2_dpy;
+
+      dri2_surf->wl_pix->name           = dri2_buf->dri_buffer->name;
+      dri2_surf->wl_pix->stride         = dri2_buf->dri_buffer->pitch;
+      dri2_surf->wl_pix->driver_private = dri2_buf;
+      dri2_surf->wl_pix->destroy        = dri2_wl_egl_pixmap_destroy;
+      break;
+   default:
+      break;
+   }
+}
+
+static __DRIbuffer *
+dri2_get_buffers_with_format(__DRIdrawable * driDrawable,
+			     int *width, int *height,
+			     unsigned int *attachments, int count,
+			     int *out_count, void *loaderPrivate)
+{
+   struct dri2_egl_surface *dri2_surf = loaderPrivate;
+   struct dri2_egl_display *dri2_dpy =
+      dri2_egl_display(dri2_surf->base.Resource.Display);
+   int i;
+
+   if (dri2_surf->type == DRI2_WINDOW_SURFACE &&
+       (dri2_surf->base.Width != dri2_surf->wl_win->width || 
+        dri2_surf->base.Height != dri2_surf->wl_win->height)) {
+      for (i = 0; i < __DRI_BUFFER_COUNT; ++i) {
+         if (dri2_surf->dri_buffers[i]) {
+            dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
+					  dri2_surf->dri_buffers[i]);
+            dri2_surf->dri_buffers[i] = NULL;
+         }
+      }
+
+      dri2_surf->base.Width  = dri2_surf->wl_win->width;
+      dri2_surf->base.Height = dri2_surf->wl_win->height;
+      dri2_surf->dx = dri2_surf->wl_win->dx;
+      dri2_surf->dy = dri2_surf->wl_win->dy;
+
+      for (i = 0; i < WL_BUFFER_COUNT; ++i) {
+         if (dri2_surf->wl_drm_buffer[i])
+            wl_buffer_destroy(dri2_surf->wl_drm_buffer[i]);
+         dri2_surf->wl_drm_buffer[i]  = NULL;
+      }
+   }
+
+   dri2_surf->buffer_count = 0;
+   for (i = 0; i < 2*count; i+=2) {
+      assert(attachments[i] < __DRI_BUFFER_COUNT);
+      assert(dri2_surf->buffer_count < 5);
+
+      if (dri2_surf->dri_buffers[attachments[i]] == NULL) {
+
+         dri2_surf->dri_buffers[attachments[i]] =
+            dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen,
+                  attachments[i], attachments[i+1],
+                  dri2_surf->base.Width, dri2_surf->base.Height);
+
+         if (!dri2_surf->dri_buffers[attachments[i]]) 
+            continue;
+
+         if (attachments[i] == __DRI_BUFFER_FRONT_LEFT)
+            dri2_process_front_buffer(dri2_surf, attachments[i+1]);
+      }
+
+      memcpy(&dri2_surf->buffers[dri2_surf->buffer_count],
+             dri2_surf->dri_buffers[attachments[i]],
+             sizeof(__DRIbuffer));
+
+      dri2_surf->buffer_count++;
+   }
+
+   assert(dri2_surf->type == DRI2_PIXMAP_SURFACE ||
+          dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT]);
+
+   *out_count = dri2_surf->buffer_count;
+   if (dri2_surf->buffer_count == 0)
+	   return NULL;
+
+   *width = dri2_surf->base.Width;
+   *height = dri2_surf->base.Height;
+
+   return dri2_surf->buffers;
+}
+
+static __DRIbuffer *
+dri2_get_buffers(__DRIdrawable * driDrawable,
+		 int *width, int *height,
+		 unsigned int *attachments, int count,
+		 int *out_count, void *loaderPrivate)
+{
+   unsigned int *attachments_with_format;
+   __DRIbuffer *buffer;
+   const unsigned int format = 32;
+   int i;
+
+   attachments_with_format = calloc(count * 2, sizeof(unsigned int));
+   if (!attachments_with_format) {
+      *out_count = 0;
+      return NULL;
+   }
+
+   for (i = 0; i < count; ++i) {
+      attachments_with_format[2*i] = attachments[i];
+      attachments_with_format[2*i + 1] = format;
+   }
+
+   buffer =
+      dri2_get_buffers_with_format(driDrawable,
+				   width, height,
+				   attachments_with_format, count,
+				   out_count, loaderPrivate);
+
+   free(attachments_with_format);
+
+   return buffer;
+}
+
+
+static void
+dri2_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
+{
+   (void) driDrawable;
+
+   /* FIXME: Does EGL support front buffer rendering at all? */
+
+#if 0
+   struct dri2_egl_surface *dri2_surf = loaderPrivate;
+
+   dri2WaitGL(dri2_surf);
+#else
+   (void) loaderPrivate;
+#endif
+}
+
+static struct wl_buffer *
+wayland_create_buffer(struct dri2_egl_surface *dri2_surf, __DRIbuffer *buffer)
+{
+   struct dri2_egl_display *dri2_dpy =
+      dri2_egl_display(dri2_surf->base.Resource.Display);
+
+   return wl_drm_create_buffer(dri2_dpy->wl_dpy->drm, buffer->name,
+                               dri2_surf->base.Width, dri2_surf->base.Height,
+                               buffer->pitch, dri2_surf->wl_win->visual);
+}
+
+static void
+wayland_frame_callback(void *data, uint32_t time)
+{
+   struct dri2_egl_surface *dri2_surf = data;
+
+   dri2_surf->block_swap_buffers = EGL_FALSE;
+}
+
+static inline void
+pointer_swap(const void **p1, const void **p2)
+{
+   const void *tmp = *p1;
+   *p1 = *p2;
+   *p2 = tmp;
+}
+
+/**
+ * Called via eglSwapBuffers(), drv->API.SwapBuffers().
+ */
+static EGLBoolean
+dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
+   struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
+
+   while (dri2_surf->block_swap_buffers)
+      wl_display_iterate(dri2_dpy->wl_dpy->display, WL_DISPLAY_READABLE);
+
+   dri2_surf->block_swap_buffers = EGL_TRUE;
+   wl_display_frame_callback(dri2_dpy->wl_dpy->display,
+	 wayland_frame_callback, dri2_surf);
+
+   if (dri2_surf->type == DRI2_WINDOW_SURFACE) {
+      pointer_swap(
+	    (const void **) &dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT],
+	    (const void **) &dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT]);
+
+      dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT]->attachment = 
+	 __DRI_BUFFER_FRONT_LEFT;
+      dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT]->attachment = 
+	 __DRI_BUFFER_BACK_LEFT;
+
+      pointer_swap((const void **) &dri2_surf->wl_drm_buffer[WL_BUFFER_FRONT],
+		   (const void **) &dri2_surf->wl_drm_buffer[WL_BUFFER_BACK]);
+
+      if (!dri2_surf->wl_drm_buffer[WL_BUFFER_FRONT])
+	 dri2_surf->wl_drm_buffer[WL_BUFFER_FRONT] =
+	    wayland_create_buffer(dri2_surf,
+		  dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT]);
+
+      wl_surface_attach(dri2_surf->wl_win->surface,
+	    dri2_surf->wl_drm_buffer[WL_BUFFER_FRONT],
+	    dri2_surf->dx, dri2_surf->dy);
+
+      dri2_surf->wl_win->attached_width  = dri2_surf->base.Width;
+      dri2_surf->wl_win->attached_height = dri2_surf->base.Height;
+      /* reset resize growing parameters */
+      dri2_surf->dx = 0;
+      dri2_surf->dy = 0;
+
+      wl_surface_damage(dri2_surf->wl_win->surface, 0, 0,
+	    dri2_surf->base.Width, dri2_surf->base.Height);
+   }
+
+   _EGLContext *ctx;
+   if (dri2_drv->glFlush) {
+      ctx = _eglGetCurrentContext();
+      if (ctx && ctx->DrawSurface == &dri2_surf->base)
+         dri2_drv->glFlush();
+   }
+
+   (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
+   (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
+
+   return EGL_TRUE;
+}
+
+/**
+ * Called via eglCreateImageKHR(), drv->API.CreateImageKHR().
+ */
+static _EGLImage *
+dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx,
+			     EGLClientBuffer buffer, const EGLint *attr_list)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   struct wl_egl_pixmap *wl_egl_pixmap = (struct wl_egl_pixmap *) buffer;
+   struct dri2_egl_buffer *dri2_buf;
+   EGLint wl_attr_list[] = {
+		EGL_WIDTH,		0,
+		EGL_HEIGHT,		0,
+		EGL_DRM_BUFFER_STRIDE_MESA,	0,
+		EGL_DRM_BUFFER_FORMAT_MESA,	EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
+		EGL_NONE
+   };
+
+   dri2_buf = malloc(sizeof *dri2_buf);
+   if (!dri2_buf)
+           return NULL;
+
+   dri2_buf->dri2_dpy = dri2_dpy;
+   dri2_buf->dri_buffer =
+      dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen,
+				     __DRI_BUFFER_FRONT_LEFT, 32,
+				     wl_egl_pixmap->width,
+				     wl_egl_pixmap->height);
+
+   wl_egl_pixmap->name    = dri2_buf->dri_buffer->name;
+   wl_egl_pixmap->stride  = dri2_buf->dri_buffer->pitch;
+   wl_egl_pixmap->destroy = dri2_wl_egl_pixmap_destroy;
+   wl_egl_pixmap->driver_private = dri2_buf;
+
+   wl_attr_list[1] = wl_egl_pixmap->width;
+   wl_attr_list[3] = wl_egl_pixmap->height;
+   wl_attr_list[5] = wl_egl_pixmap->stride / 4;
+
+
+   return dri2_create_image_khr(disp->Driver, disp, ctx, EGL_DRM_BUFFER_MESA,
+	       (EGLClientBuffer)(intptr_t) wl_egl_pixmap->name, wl_attr_list);
+}
+
+static _EGLImage *
+dri2_wayland_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
+			      _EGLContext *ctx, EGLenum target,
+			      EGLClientBuffer buffer, const EGLint *attr_list)
+{
+   (void) drv;
+
+   switch (target) {
+   case EGL_NATIVE_PIXMAP_KHR:
+      return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list);
+   default:
+      return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
+   }
+}
+
+/**
+ * Called via eglTerminate(), drv->API.Terminate().
+ */
+static EGLBoolean
+dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+
+   _eglReleaseDisplayResources(drv, disp);
+   _eglCleanupDisplay(disp);
+
+   dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
+   close(dri2_dpy->fd);
+   dlclose(dri2_dpy->driver);
+   free(dri2_dpy->driver_name);
+   free(dri2_dpy);
+   disp->DriverData = NULL;
+
+   return EGL_TRUE;
+}
+
+
+EGLBoolean
+dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
+{
+   struct dri2_egl_display *dri2_dpy;
+   int i;
+
+   drv->API.CreateWindowSurface = dri2_create_window_surface;
+   drv->API.CreatePixmapSurface = dri2_create_pixmap_surface;
+   drv->API.DestroySurface = dri2_destroy_surface;
+   drv->API.SwapBuffers = dri2_swap_buffers;
+   drv->API.CreateImageKHR = dri2_wayland_create_image_khr;
+   drv->API.Terminate = dri2_terminate;
+
+   dri2_dpy = malloc(sizeof *dri2_dpy);
+   if (!dri2_dpy)
+      return _eglError(EGL_BAD_ALLOC, "eglInitialize");
+
+   disp->DriverData = (void *) dri2_dpy;
+   dri2_dpy->wl_dpy = disp->PlatformDisplay;
+
+   dri2_dpy->fd = dup(dri2_dpy->wl_dpy->fd);
+   if (dri2_dpy->fd < 0) {
+      _eglError(EGL_BAD_ALLOC, "DRI2: failed to dup fd");
+      goto cleanup_dpy;
+   }
+   
+   wl_display_iterate(dri2_dpy->wl_dpy->display, WL_DISPLAY_WRITABLE);
+   while (!dri2_dpy->wl_dpy->authenticated)
+      wl_display_iterate(dri2_dpy->wl_dpy->display, WL_DISPLAY_READABLE);
+
+   dri2_dpy->driver_name = dri2_get_driver_for_fd(dri2_dpy->fd);
+   if (dri2_dpy->driver_name == NULL) {
+      _eglError(EGL_BAD_ALLOC, "DRI2: failed to get driver name");
+      goto cleanup_fd;
+   }
+
+   if (!dri2_load_driver(disp))
+      goto cleanup_driver_name;
+
+   dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
+   dri2_dpy->loader_extension.base.version = 3;
+   dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
+   dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
+   dri2_dpy->loader_extension.getBuffersWithFormat =
+      dri2_get_buffers_with_format;
+      
+   dri2_dpy->extensions[0] = &dri2_dpy->loader_extension.base;
+   dri2_dpy->extensions[1] = &image_lookup_extension.base;
+   dri2_dpy->extensions[2] = NULL;
+
+   if (!dri2_create_screen(disp))
+      goto cleanup_driver;
+
+   for (i = 0; dri2_dpy->driver_configs[i]; i++)
+      dri2_add_config(disp, dri2_dpy->driver_configs[i], i + 1, 0,
+		      EGL_WINDOW_BIT | EGL_PIXMAP_BIT);
+
+
+   disp->Extensions.MESA_drm_image = EGL_TRUE;
+   disp->Extensions.KHR_image_base = EGL_TRUE;
+   disp->Extensions.KHR_image_pixmap = EGL_TRUE;
+   disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
+   disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
+
+   /* we're supporting EGL 1.4 */
+   disp->VersionMajor = 1;
+   disp->VersionMinor = 4;
+
+   return EGL_TRUE;
+
+ cleanup_driver:
+   dlclose(dri2_dpy->driver);
+ cleanup_driver_name:
+   free(dri2_dpy->driver_name);
+ cleanup_fd:
+   close(dri2_dpy->fd);
+ cleanup_dpy:
+   free(dri2_dpy);
+   
+   return EGL_FALSE;
+}