egl: Overhaul driver API.

The motivation is so that drivers do not need to look up and check for
bad display, context, and etc.  It also becomes unnecessary for drivers
to call the link functions.

This commit makes eglapi.[ch] do the lookup and check.  As a result, the
driver API is overhauled, and almost all sources and drivers need
update.  The updates are mainly find and replace with human brains.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>

18 files changed, 691 insertions, 559 deletions

diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c
index fde6b73..e8a5b18 100644
--- a/src/egl/main/eglapi.c
+++ b/src/egl/main/eglapi.c
@@ -29,7 +29,6 @@
  */
 
 
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -39,7 +38,9 @@
 #include "eglglobals.h"
 #include "egldriver.h"
 #include "eglsurface.h"
-
+#include "eglconfig.h"
+#include "eglscreen.h"
+#include "eglmode.h"
 
 
 /**
@@ -67,232 +68,481 @@ eglGetDisplay(NativeDisplayType nativeDisplay)
 EGLBoolean EGLAPIENTRY
 eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
 {
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLDriver *drv;
    EGLint major_int, minor_int;
 
-   if (dpy) {
-      EGLBoolean retVal;
-      _EGLDisplay *dpyPriv = _eglLookupDisplay(dpy);
-      if (!dpyPriv) {
-         return EGL_FALSE;
-      }
-      dpyPriv->Driver = _eglOpenDriver(dpyPriv,
-                                       dpyPriv->DriverName,
-                                       dpyPriv->DriverArgs);
-      if (!dpyPriv->Driver) {
-         return EGL_FALSE;
-      }
-      /* Initialize the particular driver now */
-      retVal = dpyPriv->Driver->API.Initialize(dpyPriv->Driver, dpy,
-                                               &major_int, &minor_int);
-
-      dpyPriv->Driver->APImajor = major_int;
-      dpyPriv->Driver->APIminor = minor_int;
-      snprintf(dpyPriv->Driver->Version, sizeof(dpyPriv->Driver->Version),
-               "%d.%d (%s)", major_int, minor_int, dpyPriv->Driver->Name);
-
-      /* Update applications version of major and minor if not NULL */
-      if((major != NULL) && (minor != NULL))
-      {
-         *major = major_int;
-         *minor = minor_int;
+   if (!disp)
+      return _eglError(EGL_BAD_DISPLAY, __FUNCTION__);
+
+   drv = disp->Driver;
+   if (!drv) {
+      drv = _eglOpenDriver(disp, disp->DriverName, disp->DriverArgs);
+      if (!drv)
+         return _eglError(EGL_NOT_INITIALIZED, __FUNCTION__);
+
+      /* Initialize the particular display now */
+      if (!drv->API.Initialize(drv, disp, &major_int, &minor_int)) {
+         _eglCloseDriver(drv, disp);
+         return _eglError(EGL_NOT_INITIALIZED, __FUNCTION__);
       }
 
-      return retVal;
+      drv->APImajor = major_int;
+      drv->APIminor = minor_int;
+      snprintf(drv->Version, sizeof(drv->Version),
+               "%d.%d (%s)", major_int, minor_int, drv->Name);
+
+      disp->Driver = drv;
+   } else {
+      major_int = drv->APImajor;
+      minor_int = drv->APIminor;
    }
-   return EGL_FALSE;
+
+   /* Update applications version of major and minor if not NULL */
+   if ((major != NULL) && (minor != NULL)) {
+      *major = major_int;
+      *minor = minor_int;
+   }
+
+   return EGL_TRUE;
 }
 
 
 EGLBoolean EGLAPIENTRY
 eglTerminate(EGLDisplay dpy)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   if (drv)
-      return _eglCloseDriver(drv, dpy);
-   else
-      return EGL_FALSE;
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLDriver *drv;
+
+   if (!disp)
+      return _eglError(EGL_BAD_DISPLAY, __FUNCTION__);
+
+   drv = disp->Driver;
+   if (drv) {
+      /* TODO drv->API.Terminate should be called here */
+      _eglCloseDriver(drv, disp);
+      disp->Driver = NULL;
+   }
+
+   return EGL_TRUE;
+}
+
+
+/**
+ * A bunch of check functions and declare macros to simply error checking.
+ */
+static INLINE _EGLDriver *
+_eglCheckDisplay(_EGLDisplay *disp, const char *msg)
+{
+   if (!disp) {
+      _eglError(EGL_BAD_DISPLAY, msg);
+      return NULL;
+   }
+   if (!disp->Driver) {
+      _eglError(EGL_NOT_INITIALIZED, msg);
+      return NULL;
+   }
+   return disp->Driver;
+}
+
+
+static INLINE _EGLDriver *
+_eglCheckSurface(_EGLDisplay *disp, _EGLSurface *surf, const char *msg)
+{
+   _EGLDriver *drv = _eglCheckDisplay(disp, msg);
+   if (!drv)
+      return NULL;
+   if (!surf) {
+      _eglError(EGL_BAD_SURFACE, msg);
+      return NULL;
+   }
+   return drv;
 }
 
 
+static INLINE _EGLDriver *
+_eglCheckContext(_EGLDisplay *disp, _EGLContext *context, const char *msg)
+{
+   _EGLDriver *drv = _eglCheckDisplay(disp, msg);
+   if (!drv)
+      return NULL;
+   if (!context) {
+      _eglError(EGL_BAD_CONTEXT, msg);
+      return NULL;
+   }
+   return drv;
+}
+
+
+static INLINE _EGLDriver *
+_eglCheckConfig(_EGLDisplay *disp, _EGLConfig *conf, const char *msg)
+{
+   _EGLDriver *drv = _eglCheckDisplay(disp, msg);
+   if (!drv)
+      return NULL;
+   if (!conf) {
+      _eglError(EGL_BAD_CONFIG, msg);
+      return NULL;
+   }
+   return drv;
+}
+
+
+#define _EGL_DECLARE_DD(dpy)                                   \
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);                 \
+   _EGLDriver *drv;                                            \
+   do {                                                        \
+      drv = _eglCheckDisplay(disp, __FUNCTION__);              \
+      if (!drv)                                                \
+         return EGL_FALSE;                                     \
+   } while (0)
+
+
+#define _EGL_DECLARE_DD_AND_SURFACE(dpy, surface)              \
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);                 \
+   _EGLSurface *surf = _eglLookupSurface((surface), disp);     \
+   _EGLDriver *drv;                                            \
+   do {                                                        \
+      drv = _eglCheckSurface(disp, surf, __FUNCTION__);        \
+      if (!drv)                                                \
+         return EGL_FALSE;                                     \
+   } while (0)
+
+
+#define _EGL_DECLARE_DD_AND_CONTEXT(dpy, ctx)                  \
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);                 \
+   _EGLContext *context = _eglLookupContext((ctx), disp);      \
+   _EGLDriver *drv;                                            \
+   do {                                                        \
+      drv = _eglCheckContext(disp, context, __FUNCTION__);     \
+      if (!drv)                                                \
+         return EGL_FALSE;                                     \
+   } while (0)
+
+
+#ifdef EGL_MESA_screen_surface
+
+
+static INLINE _EGLDriver *
+_eglCheckScreen(_EGLDisplay *disp, _EGLScreen *scrn, const char *msg)
+{
+   _EGLDriver *drv = _eglCheckDisplay(disp, msg);
+   if (!drv)
+      return NULL;
+   if (!scrn) {
+      _eglError(EGL_BAD_SCREEN_MESA, msg);
+      return NULL;
+   }
+   return drv;
+}
+
+
+static INLINE _EGLDriver *
+_eglCheckMode(_EGLDisplay *disp, _EGLMode *m, const char *msg)
+{
+   _EGLDriver *drv = _eglCheckDisplay(disp, msg);
+   if (!drv)
+      return NULL;
+   if (!m) {
+      _eglError(EGL_BAD_MODE_MESA, msg);
+      return NULL;
+   }
+   return drv;
+}
+
+
+#define _EGL_DECLARE_DD_AND_SCREEN(dpy, screen)                \
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);                 \
+   _EGLScreen *scrn = _eglLookupScreen((screen), disp);        \
+   _EGLDriver *drv;                                            \
+   do {                                                        \
+      drv = _eglCheckScreen(disp, scrn, __FUNCTION__);         \
+      if (!drv)                                                \
+         return EGL_FALSE;                                     \
+   } while (0)
+
+
+#define _EGL_DECLARE_DD_AND_MODE(dpy, mode)                    \
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);                 \
+   _EGLMode *m = _eglLookupMode((mode), disp);                 \
+   _EGLDriver *drv;                                            \
+   do {                                                        \
+      drv = _eglCheckMode(disp, m, __FUNCTION__);              \
+      if (!drv)                                                \
+         return EGL_FALSE;                                     \
+   } while (0)
+
+
+#endif /* EGL_MESA_screen_surface */
+
+
 const char * EGLAPIENTRY
 eglQueryString(EGLDisplay dpy, EGLint name)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   if (drv)
-      return drv->API.QueryString(drv, dpy, name);
-   else
-      return NULL;
+   _EGL_DECLARE_DD(dpy);
+   return drv->API.QueryString(drv, disp, name);
 }
 
 
 EGLBoolean EGLAPIENTRY
-eglGetConfigs(EGLDisplay dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config)
+eglGetConfigs(EGLDisplay dpy, EGLConfig *configs,
+              EGLint config_size, EGLint *num_config)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   /* XXX check drv for null in remaining functions */
-   return drv->API.GetConfigs(drv, dpy, configs, config_size, num_config);
+   _EGL_DECLARE_DD(dpy);
+   return drv->API.GetConfigs(drv, disp, configs, config_size, num_config);
 }
 
 
 EGLBoolean EGLAPIENTRY
-eglChooseConfig(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config)
+eglChooseConfig(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs,
+                EGLint config_size, EGLint *num_config)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.ChooseConfig(drv, dpy, attrib_list, configs, config_size, num_config);
+   _EGL_DECLARE_DD(dpy);
+   return drv->API.ChooseConfig(drv, disp, attrib_list, configs,
+                                config_size, num_config);
 }
 
 
 EGLBoolean EGLAPIENTRY
-eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value)
+eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
+                   EGLint attribute, EGLint *value)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.GetConfigAttrib(drv, dpy, config, attribute, value);
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLConfig *conf = _eglLookupConfig(config, disp);
+   _EGLDriver *drv;
+
+   drv = _eglCheckConfig(disp, conf, __FUNCTION__);
+   if (!drv)
+      return EGL_FALSE;
+
+   return drv->API.GetConfigAttrib(drv, disp, conf, attribute, value);
 }
 
 
 EGLContext EGLAPIENTRY
-eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_list, const EGLint *attrib_list)
-{
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.CreateContext(drv, dpy, config, share_list, attrib_list);
+eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_list,
+                 const EGLint *attrib_list)
+{
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLConfig *conf = _eglLookupConfig(config, disp);
+   _EGLContext *share = _eglLookupContext(share_list, disp);
+   _EGLDriver *drv;
+   _EGLContext *context;
+
+   drv = _eglCheckConfig(disp, conf, __FUNCTION__);
+   if (!drv)
+      return EGL_NO_CONTEXT;
+   if (!share && share_list != EGL_NO_CONTEXT) {
+      _eglError(EGL_BAD_CONTEXT, __FUNCTION__);
+      return EGL_NO_CONTEXT;
+   }
+
+   context = drv->API.CreateContext(drv, disp, conf, share, attrib_list);
+   if (context)
+      return _eglLinkContext(context, disp);
+   else
+      return EGL_NO_CONTEXT;
 }
 
 
 EGLBoolean EGLAPIENTRY
 eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.DestroyContext(drv, dpy, ctx);
+   _EGL_DECLARE_DD_AND_CONTEXT(dpy, ctx);
+   _eglUnlinkContext(context);
+   return drv->API.DestroyContext(drv, disp, context);
 }
 
 
 EGLBoolean EGLAPIENTRY
-eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx)
+eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read,
+               EGLContext ctx)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.MakeCurrent(drv, dpy, draw, read, ctx);
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLContext *context = _eglLookupContext(ctx, disp);
+   _EGLSurface *draw_surf = _eglLookupSurface(draw, disp);
+   _EGLSurface *read_surf = _eglLookupSurface(read, disp);
+   _EGLDriver *drv;
+
+   drv = _eglCheckDisplay(disp, __FUNCTION__);
+   if (!drv)
+      return EGL_FALSE;
+   if (!context && ctx != EGL_NO_CONTEXT)
+      return _eglError(EGL_BAD_CONTEXT, __FUNCTION__);
+   if ((!draw_surf && draw != EGL_NO_SURFACE) ||
+       (!read_surf && read != EGL_NO_SURFACE))
+      return _eglError(EGL_BAD_SURFACE, __FUNCTION__);
+
+   return drv->API.MakeCurrent(drv, disp, draw_surf, read_surf, context);
 }
 
 
 EGLBoolean EGLAPIENTRY
-eglQueryContext(EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint *value)
+eglQueryContext(EGLDisplay dpy, EGLContext ctx,
+                EGLint attribute, EGLint *value)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.QueryContext(drv, dpy, ctx, attribute, value);
+   _EGL_DECLARE_DD_AND_CONTEXT(dpy, ctx);
+   return drv->API.QueryContext(drv, disp, context, attribute, value);
 }
 
 
 EGLSurface EGLAPIENTRY
-eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint *attrib_list)
+eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config,
+                       NativeWindowType window, const EGLint *attrib_list)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.CreateWindowSurface(drv, dpy, config, window, attrib_list);
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLConfig *conf = _eglLookupConfig(config, disp);
+   _EGLDriver *drv;
+   _EGLSurface *surf;
+
+   drv = _eglCheckConfig(disp, conf, __FUNCTION__);
+   if (!drv)
+      return EGL_NO_SURFACE;
+
+   surf = drv->API.CreateWindowSurface(drv, disp, conf, window, attrib_list);
+   if (surf)
+      return _eglLinkSurface(surf, disp);
+   else
+      return EGL_NO_SURFACE;
 }
 
 
 EGLSurface EGLAPIENTRY
-eglCreatePixmapSurface(EGLDisplay dpy, EGLConfig config, NativePixmapType pixmap, const EGLint *attrib_list)
+eglCreatePixmapSurface(EGLDisplay dpy, EGLConfig config,
+                       NativePixmapType pixmap, const EGLint *attrib_list)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.CreatePixmapSurface(drv, dpy, config, pixmap, attrib_list);
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLConfig *conf = _eglLookupConfig(config, disp);
+   _EGLDriver *drv;
+   _EGLSurface *surf;
+
+   drv = _eglCheckConfig(disp, conf, __FUNCTION__);
+   if (!drv)
+      return EGL_NO_SURFACE;
+
+   surf = drv->API.CreatePixmapSurface(drv, disp, conf, pixmap, attrib_list);
+   if (surf)
+      return _eglLinkSurface(surf, disp);
+   else
+      return EGL_NO_SURFACE;
 }
 
 
 EGLSurface EGLAPIENTRY
-eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list)
+eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config,
+                        const EGLint *attrib_list)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.CreatePbufferSurface(drv, dpy, config, attrib_list);
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLConfig *conf = _eglLookupConfig(config, disp);
+   _EGLDriver *drv;
+   _EGLSurface *surf;
+
+   drv = _eglCheckConfig(disp, conf, __FUNCTION__);
+   if (!drv)
+      return EGL_NO_SURFACE;
+
+   surf = drv->API.CreatePbufferSurface(drv, disp, conf, attrib_list);
+   if (surf)
+      return _eglLinkSurface(surf, disp);
+   else
+      return EGL_NO_SURFACE;
 }
 
 
 EGLBoolean EGLAPIENTRY
 eglDestroySurface(EGLDisplay dpy, EGLSurface surface)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.DestroySurface(drv, dpy, surface);
+   _EGL_DECLARE_DD_AND_SURFACE(dpy, surface);
+   _eglUnlinkSurface(surf);
+   return drv->API.DestroySurface(drv, disp, surf);
 }
 
-
 EGLBoolean EGLAPIENTRY
-eglQuerySurface(EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint *value)
+eglQuerySurface(EGLDisplay dpy, EGLSurface surface,
+                EGLint attribute, EGLint *value)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.QuerySurface(drv, dpy, surface, attribute, value);
+   _EGL_DECLARE_DD_AND_SURFACE(dpy, surface);
+   return drv->API.QuerySurface(drv, disp, surf, attribute, value);
 }
 
-
 EGLBoolean EGLAPIENTRY
-eglSurfaceAttrib(EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value)
+eglSurfaceAttrib(EGLDisplay dpy, EGLSurface surface,
+                 EGLint attribute, EGLint value)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.SurfaceAttrib(drv, dpy, surface, attribute, value);
+   _EGL_DECLARE_DD_AND_SURFACE(dpy, surface);
+   return drv->API.SurfaceAttrib(drv, disp, surf, attribute, value);
 }
 
 
 EGLBoolean EGLAPIENTRY
 eglBindTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.BindTexImage(drv, dpy, surface, buffer);
+   _EGL_DECLARE_DD_AND_SURFACE(dpy, surface);
+   return drv->API.BindTexImage(drv, disp, surf, buffer);
 }
 
 
 EGLBoolean EGLAPIENTRY
 eglReleaseTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.ReleaseTexImage(drv, dpy, surface, buffer);
+   _EGL_DECLARE_DD_AND_SURFACE(dpy, surface);
+   return drv->API.ReleaseTexImage(drv, disp, surf, buffer);
 }
 
 
 EGLBoolean EGLAPIENTRY
 eglSwapInterval(EGLDisplay dpy, EGLint interval)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.SwapInterval(drv, dpy, interval);
+   _EGL_DECLARE_DD(dpy);
+   return drv->API.SwapInterval(drv, disp, interval);
 }
 
 
 EGLBoolean EGLAPIENTRY
-eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
+eglSwapBuffers(EGLDisplay dpy, EGLSurface surface)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.SwapBuffers(drv, dpy, draw);
+   _EGL_DECLARE_DD_AND_SURFACE(dpy, surface);
+   return drv->API.SwapBuffers(drv, disp, surf);
 }
 
 
 EGLBoolean EGLAPIENTRY
 eglCopyBuffers(EGLDisplay dpy, EGLSurface surface, NativePixmapType target)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.CopyBuffers(drv, dpy, surface, target);
+   _EGL_DECLARE_DD_AND_SURFACE(dpy, surface);
+   return drv->API.CopyBuffers(drv, disp, surf, target);
 }
 
 
 EGLBoolean EGLAPIENTRY
 eglWaitGL(void)
 {
-   EGLDisplay dpy = eglGetCurrentDisplay();
-   if (dpy != EGL_NO_DISPLAY) {
-      _EGLDriver *drv = _eglLookupDriver(dpy);
-      return drv->API.WaitGL(drv, dpy);
-   }
-   else
-      return EGL_FALSE;
+   _EGLDisplay *disp = _eglGetCurrentDisplay();
+   _EGLDriver *drv;
+
+   if (!disp)
+      return EGL_TRUE;
+
+   /* a current display is always initialized */
+   drv = disp->Driver;
+
+   return drv->API.WaitGL(drv, disp);
 }
 
 
 EGLBoolean EGLAPIENTRY
 eglWaitNative(EGLint engine)
 {
-   EGLDisplay dpy = eglGetCurrentDisplay();
-   if (dpy != EGL_NO_DISPLAY) {
-      _EGLDriver *drv = _eglLookupDriver(dpy);
-      return drv->API.WaitNative(drv, dpy, engine);
-   }
-   else
-      return EGL_FALSE;
+   _EGLDisplay *disp = _eglGetCurrentDisplay();
+   _EGLDriver *drv;
+
+   if (!disp)
+      return EGL_TRUE;
+
+   /* a current display is always initialized */
+   drv = disp->Driver;
+
+   return drv->API.WaitNative(drv, disp, engine);
 }
 
 
@@ -420,111 +670,168 @@ eglChooseModeMESA(EGLDisplay dpy, EGLScreenMESA screen,
                   const EGLint *attrib_list, EGLModeMESA *modes,
                   EGLint modes_size, EGLint *num_modes)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   if (drv)
-      return drv->API.ChooseModeMESA(drv, dpy, screen, attrib_list, modes, modes_size, num_modes);
-   else
-      return EGL_FALSE;
+   _EGL_DECLARE_DD_AND_SCREEN(dpy, screen);
+   return drv->API.ChooseModeMESA(drv, disp, scrn, attrib_list,
+                                  modes, modes_size, num_modes);
 }
 
 
 EGLBoolean EGLAPIENTRY
-eglGetModesMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLModeMESA *modes, EGLint mode_size, EGLint *num_mode)
+eglGetModesMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLModeMESA *modes,
+                EGLint mode_size, EGLint *num_mode)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   if (drv)
-      return drv->API.GetModesMESA(drv, dpy, screen, modes, mode_size, num_mode);
-   else
-      return EGL_FALSE;
+   _EGL_DECLARE_DD_AND_SCREEN(dpy, screen);
+   return drv->API.GetModesMESA(drv, disp, scrn, modes, mode_size, num_mode);
 }
 
 
 EGLBoolean EGLAPIENTRY
-eglGetModeAttribMESA(EGLDisplay dpy, EGLModeMESA mode, EGLint attribute, EGLint *value)
+eglGetModeAttribMESA(EGLDisplay dpy, EGLModeMESA mode,
+                     EGLint attribute, EGLint *value)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   if (drv)
-      return drv->API.GetModeAttribMESA(drv, dpy, mode, attribute, value);
-   else
-      return EGL_FALSE;
+   _EGL_DECLARE_DD_AND_MODE(dpy, mode);
+   return drv->API.GetModeAttribMESA(drv, disp, m, attribute, value);
 }
 
 
 EGLBoolean EGLAPIENTRY
-eglCopyContextMESA(EGLDisplay dpy, EGLContext source, EGLContext dest, EGLint mask)
-{
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   if (drv)
-      return drv->API.CopyContextMESA(drv, dpy, source, dest, mask);
-   else
+eglCopyContextMESA(EGLDisplay dpy, EGLContext source, EGLContext dest,
+                   EGLint mask)
+{
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLContext *source_context = _eglLookupContext(source, disp);
+   _EGLContext *dest_context = _eglLookupContext(dest, disp);
+   _EGLDriver *drv;
+
+   drv = _eglCheckContext(disp, source_context, __FUNCTION__);
+   if (!drv || !dest_context) {
+      if (drv)
+         _eglError(EGL_BAD_CONTEXT, __FUNCTION__);
       return EGL_FALSE;
+   }
+
+   return drv->API.CopyContextMESA(drv, disp, source_context, dest_context,
+                                   mask);
 }
 
 
 EGLBoolean
-eglGetScreensMESA(EGLDisplay dpy, EGLScreenMESA *screens, EGLint max_screens, EGLint *num_screens)
+eglGetScreensMESA(EGLDisplay dpy, EGLScreenMESA *screens,
+                  EGLint max_screens, EGLint *num_screens)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   if (drv)
-      return drv->API.GetScreensMESA(drv, dpy, screens, max_screens, num_screens);
-   else
-      return EGL_FALSE;
+   _EGL_DECLARE_DD(dpy);
+   return drv->API.GetScreensMESA(drv, disp, screens,
+                                  max_screens, num_screens);
 }
 
 
 EGLSurface
-eglCreateScreenSurfaceMESA(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list)
+eglCreateScreenSurfaceMESA(EGLDisplay dpy, EGLConfig config,
+                           const EGLint *attrib_list)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.CreateScreenSurfaceMESA(drv, dpy, config, attrib_list);
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLConfig *conf = _eglLookupConfig(config, disp);
+   _EGLDriver *drv;
+   _EGLSurface *surf;
+
+   drv = _eglCheckConfig(disp, conf, __FUNCTION__);
+   if (!drv)
+      return EGL_NO_SURFACE;
+
+   surf = drv->API.CreateScreenSurfaceMESA(drv, disp, conf, attrib_list);
+   if (surf)
+      return _eglLinkSurface(surf, disp);
+   else
+      return EGL_NO_SURFACE;
 }
 
 
 EGLBoolean
-eglShowScreenSurfaceMESA(EGLDisplay dpy, EGLint screen, EGLSurface surface, EGLModeMESA mode)
+eglShowScreenSurfaceMESA(EGLDisplay dpy, EGLint screen,
+                         EGLSurface surface, EGLModeMESA mode)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.ShowScreenSurfaceMESA(drv, dpy, screen, surface, mode);
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLScreen *scrn = _eglLookupScreen((EGLScreenMESA) screen, disp);
+   _EGLSurface *surf = _eglLookupSurface(surface, disp);
+   _EGLMode *m = _eglLookupMode(mode, disp);
+   _EGLDriver *drv;
+
+   drv = _eglCheckScreen(disp, scrn, __FUNCTION__);
+   if (!drv)
+      return EGL_FALSE;
+   if (!surf && surface != EGL_NO_SURFACE)
+      return _eglError(EGL_BAD_SURFACE, __FUNCTION__);
+   if (!m && mode != EGL_NO_MODE_MESA)
+      return _eglError(EGL_BAD_MODE_MESA, __FUNCTION__);
+
+   return drv->API.ShowScreenSurfaceMESA(drv, disp, scrn, surf, m);
 }
 
 
 EGLBoolean
 eglScreenPositionMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLint x, EGLint y)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.ScreenPositionMESA(drv, dpy, screen, x, y);
+   _EGL_DECLARE_DD_AND_SCREEN(dpy, screen);
+   return drv->API.ScreenPositionMESA(drv, disp, scrn, x, y);
 }
 
 
 EGLBoolean
-eglQueryScreenMESA( EGLDisplay dpy, EGLScreenMESA screen, EGLint attribute, EGLint *value)
+eglQueryScreenMESA(EGLDisplay dpy, EGLScreenMESA screen,
+                   EGLint attribute, EGLint *value)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.QueryScreenMESA(drv, dpy, screen, attribute, value);
+   _EGL_DECLARE_DD_AND_SCREEN(dpy, screen);
+   return drv->API.QueryScreenMESA(drv, disp, scrn, attribute, value);
 }
 
 
 EGLBoolean
-eglQueryScreenSurfaceMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLSurface *surface)
+eglQueryScreenSurfaceMESA(EGLDisplay dpy, EGLScreenMESA screen,
+                          EGLSurface *surface)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.QueryScreenSurfaceMESA(drv, dpy, screen, surface);
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLScreen *scrn = _eglLookupScreen((EGLScreenMESA) screen, disp);
+   _EGLDriver *drv;
+   _EGLSurface *surf;
+
+   drv = _eglCheckScreen(disp, scrn, __FUNCTION__);
+   if (!drv)
+      return EGL_FALSE;
+
+   if (drv->API.QueryScreenSurfaceMESA(drv, disp, scrn, &surf) != EGL_TRUE)
+      surf = NULL;
+   if (surface)
+      *surface = _eglGetSurfaceHandle(surf);
+   return (surf != NULL);
 }
 
 
 EGLBoolean
 eglQueryScreenModeMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLModeMESA *mode)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.QueryScreenModeMESA(drv, dpy, screen, mode);
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLScreen *scrn = _eglLookupScreen((EGLScreenMESA) screen, disp);
+   _EGLDriver *drv;
+   _EGLMode *m;
+
+   drv = _eglCheckScreen(disp, scrn, __FUNCTION__);
+   if (!drv)
+      return EGL_FALSE;
+
+   if (drv->API.QueryScreenModeMESA(drv, disp, scrn, &m) != EGL_TRUE)
+      m = NULL;
+   if (mode)
+      *mode = m->Handle;
+
+   return (m != NULL);
 }
 
 
 const char *
 eglQueryModeStringMESA(EGLDisplay dpy, EGLModeMESA mode)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.QueryModeStringMESA(drv, dpy, mode);
+   _EGL_DECLARE_DD_AND_MODE(dpy, mode);
+   return drv->API.QueryModeStringMESA(drv, disp, m);
 }
 
 
@@ -605,27 +912,37 @@ eglCreatePbufferFromClientBuffer(EGLDisplay dpy, EGLenum buftype,
                                  EGLClientBuffer buffer, EGLConfig config,
                                  const EGLint *attrib_list)
 {
-   _EGLDriver *drv = _eglLookupDriver(dpy);
-   return drv->API.CreatePbufferFromClientBuffer(drv, dpy, buftype, buffer,
-                                                 config, attrib_list);
+   _EGLDisplay *disp = _eglLookupDisplay(dpy);
+   _EGLConfig *conf = _eglLookupConfig(config, disp);
+   _EGLDriver *drv;
+   _EGLSurface *surf;
+
+   drv = _eglCheckConfig(disp, conf, __FUNCTION__);
+   if (!drv)
+      return EGL_NO_SURFACE;
+
+   surf = drv->API.CreatePbufferFromClientBuffer(drv, disp, buftype, buffer,
+                                                 conf, attrib_list);
+   if (surf)
+      return _eglLinkSurface(surf, disp);
+   else
+      return EGL_NO_SURFACE;
 }
 
 
 EGLBoolean
 eglReleaseThread(void)
 {
-   EGLDisplay dpy;
-
-   if (_eglIsCurrentThreadDummy())
-      return EGL_TRUE;
-
-   dpy = eglGetCurrentDisplay();
-   if (dpy) {
-      _EGLDriver *drv = _eglLookupDriver(dpy);
-      /* unbind context */
-      (void) drv->API.MakeCurrent(drv, dpy, EGL_NO_SURFACE,
-                                  EGL_NO_SURFACE, EGL_NO_CONTEXT);
+   /* unbind current context */
+   if (!_eglIsCurrentThreadDummy()) {
+      _EGLDisplay *disp = _eglGetCurrentDisplay();
+      _EGLDriver *drv;
+      if (disp) {
+         drv = disp->Driver;
+         (void) drv->API.MakeCurrent(drv, disp, NULL, NULL, NULL);
+      }
    }
+
    _eglDestroyCurrentThread();
    return EGL_TRUE;
 }
@@ -634,13 +951,17 @@ eglReleaseThread(void)
 EGLBoolean
 eglWaitClient(void)
 {
-   EGLDisplay dpy = eglGetCurrentDisplay();
-   if (dpy != EGL_NO_DISPLAY) {
-      _EGLDriver *drv = _eglLookupDriver(dpy);
-      return drv->API.WaitClient(drv, dpy);
-   }
-   else
-      return EGL_FALSE;
+   _EGLDisplay *disp = _eglGetCurrentDisplay();
+   _EGLDriver *drv;
+
+   if (!disp)
+      return EGL_TRUE;
+
+   /* a current display is always initialized */
+   drv = disp->Driver;
+
+   return drv->API.WaitClient(drv, disp);
 }
 
+
 #endif /* EGL_VERSION_1_2 */
diff --git a/src/egl/main/eglapi.h b/src/egl/main/eglapi.h
index f6163a0..6081e58 100644
--- a/src/egl/main/eglapi.h
+++ b/src/egl/main/eglapi.h
@@ -12,61 +12,61 @@ typedef void (*_EGLProc)();
  */
 
 /* driver funcs */
-typedef EGLBoolean (*Initialize_t)(_EGLDriver *, EGLDisplay dpy, EGLint *major, EGLint *minor);
-typedef EGLBoolean (*Terminate_t)(_EGLDriver *, EGLDisplay dpy);
+typedef EGLBoolean (*Initialize_t)(_EGLDriver *, _EGLDisplay *dpy, EGLint *major, EGLint *minor);
+typedef EGLBoolean (*Terminate_t)(_EGLDriver *, _EGLDisplay *dpy);
 
 /* config funcs */
-typedef EGLBoolean (*GetConfigs_t)(_EGLDriver *drv, EGLDisplay dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config);
-typedef EGLBoolean (*ChooseConfig_t)(_EGLDriver *drv, EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
-typedef EGLBoolean (*GetConfigAttrib_t)(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value);
+typedef EGLBoolean (*GetConfigs_t)(_EGLDriver *drv, _EGLDisplay *dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config);
+typedef EGLBoolean (*ChooseConfig_t)(_EGLDriver *drv, _EGLDisplay *dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
+typedef EGLBoolean (*GetConfigAttrib_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *config, EGLint attribute, EGLint *value);
 
 /* context funcs */
-typedef EGLContext (*CreateContext_t)(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, EGLContext share_list, const EGLint *attrib_list);
-typedef EGLBoolean (*DestroyContext_t)(_EGLDriver *drv, EGLDisplay dpy, EGLContext ctx);
-typedef EGLBoolean (*MakeCurrent_t)(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
-typedef EGLBoolean (*QueryContext_t)(_EGLDriver *drv, EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint *value);
+typedef _EGLContext *(*CreateContext_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *config, _EGLContext *share_list, const EGLint *attrib_list);
+typedef EGLBoolean (*DestroyContext_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx);
+typedef EGLBoolean (*MakeCurrent_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *draw, _EGLSurface *read, _EGLContext *ctx);
+typedef EGLBoolean (*QueryContext_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx, EGLint attribute, EGLint *value);
 
 /* surface funcs */
-typedef EGLSurface (*CreateWindowSurface_t)(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint *attrib_list);
-typedef EGLSurface (*CreatePixmapSurface_t)(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativePixmapType pixmap, const EGLint *attrib_list);
-typedef EGLSurface (*CreatePbufferSurface_t)(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list);
-typedef EGLBoolean (*DestroySurface_t)(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface);
-typedef EGLBoolean (*QuerySurface_t)(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint *value);
-typedef EGLBoolean (*SurfaceAttrib_t)(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value);
-typedef EGLBoolean (*BindTexImage_t)(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, EGLint buffer);
-typedef EGLBoolean (*ReleaseTexImage_t)(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, EGLint buffer);
-typedef EGLBoolean (*SwapInterval_t)(_EGLDriver *drv, EGLDisplay dpy, EGLint interval);
-typedef EGLBoolean (*SwapBuffers_t)(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw);
-typedef EGLBoolean (*CopyBuffers_t)(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, NativePixmapType target);
+typedef _EGLSurface *(*CreateWindowSurface_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *config, NativeWindowType window, const EGLint *attrib_list);
+typedef _EGLSurface *(*CreatePixmapSurface_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *config, NativePixmapType pixmap, const EGLint *attrib_list);
+typedef _EGLSurface *(*CreatePbufferSurface_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *config, const EGLint *attrib_list);
+typedef EGLBoolean (*DestroySurface_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface);
+typedef EGLBoolean (*QuerySurface_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, EGLint attribute, EGLint *value);
+typedef EGLBoolean (*SurfaceAttrib_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, EGLint attribute, EGLint value);
+typedef EGLBoolean (*BindTexImage_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, EGLint buffer);
+typedef EGLBoolean (*ReleaseTexImage_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, EGLint buffer);
+typedef EGLBoolean (*SwapInterval_t)(_EGLDriver *drv, _EGLDisplay *dpy, EGLint interval);
+typedef EGLBoolean (*SwapBuffers_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *draw);
+typedef EGLBoolean (*CopyBuffers_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, NativePixmapType target);
 
 /* misc funcs */
-typedef const char *(*QueryString_t)(_EGLDriver *drv, EGLDisplay dpy, EGLint name);
-typedef EGLBoolean (*WaitGL_t)(_EGLDriver *drv, EGLDisplay dpy);
-typedef EGLBoolean (*WaitNative_t)(_EGLDriver *drv, EGLDisplay dpy, EGLint engine);
+typedef const char *(*QueryString_t)(_EGLDriver *drv, _EGLDisplay *dpy, EGLint name);
+typedef EGLBoolean (*WaitGL_t)(_EGLDriver *drv, _EGLDisplay *dpy);
+typedef EGLBoolean (*WaitNative_t)(_EGLDriver *drv, _EGLDisplay *dpy, EGLint engine);
 
 typedef _EGLProc (*GetProcAddress_t)(const char *procname);
 
 
 
 #ifdef EGL_MESA_screen_surface
-typedef EGLBoolean (*ChooseModeMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, const EGLint *attrib_list, EGLModeMESA *modes, EGLint modes_size, EGLint *num_modes);
-typedef EGLBoolean (*GetModesMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, EGLModeMESA *modes, EGLint mode_size, EGLint *num_mode);
-typedef EGLBoolean (*GetModeAttribMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLModeMESA mode, EGLint attribute, EGLint *value);
-typedef EGLBoolean (*CopyContextMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLContext source, EGLContext dest, EGLint mask);
-typedef EGLBoolean (*GetScreensMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA *screens, EGLint max_screens, EGLint *num_screens);
-typedef EGLSurface (*CreateScreenSurfaceMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list);
-typedef EGLBoolean (*ShowScreenSurfaceMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, EGLSurface surface, EGLModeMESA mode);
-typedef EGLBoolean (*ScreenPositionMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, EGLint x, EGLint y);
-typedef EGLBoolean (*QueryScreenMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, EGLint attribute, EGLint *value);
-typedef EGLBoolean (*QueryScreenSurfaceMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, EGLSurface *surface);
-typedef EGLBoolean (*QueryScreenModeMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, EGLModeMESA *mode);
-typedef const char * (*QueryModeStringMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLModeMESA mode);
+typedef EGLBoolean (*ChooseModeMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, const EGLint *attrib_list, EGLModeMESA *modes, EGLint modes_size, EGLint *num_modes);
+typedef EGLBoolean (*GetModesMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, EGLModeMESA *modes, EGLint mode_size, EGLint *num_mode);
+typedef EGLBoolean (*GetModeAttribMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLMode *mode, EGLint attribute, EGLint *value);
+typedef EGLBoolean (*CopyContextMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *source, _EGLContext *dest, EGLint mask);
+typedef EGLBoolean (*GetScreensMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, EGLScreenMESA *screens, EGLint max_screens, EGLint *num_screens);
+typedef _EGLSurface *(*CreateScreenSurfaceMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *config, const EGLint *attrib_list);
+typedef EGLBoolean (*ShowScreenSurfaceMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, _EGLSurface *surface, _EGLMode *mode);
+typedef EGLBoolean (*ScreenPositionMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, EGLint x, EGLint y);
+typedef EGLBoolean (*QueryScreenMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, EGLint attribute, EGLint *value);
+typedef EGLBoolean (*QueryScreenSurfaceMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, _EGLSurface **surface);
+typedef EGLBoolean (*QueryScreenModeMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, _EGLMode **mode);
+typedef const char * (*QueryModeStringMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLMode *mode);
 #endif /* EGL_MESA_screen_surface */
 
 
 #ifdef EGL_VERSION_1_2
-typedef EGLBoolean (*WaitClient_t)(_EGLDriver *drv, EGLDisplay dpy);
-typedef EGLSurface (*CreatePbufferFromClientBuffer_t)(_EGLDriver *drv, EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, EGLConfig config, const EGLint *attrib_list);
+typedef EGLBoolean (*WaitClient_t)(_EGLDriver *drv, _EGLDisplay *dpy);
+typedef _EGLSurface *(*CreatePbufferFromClientBuffer_t)(_EGLDriver *drv, _EGLDisplay *dpy, EGLenum buftype, EGLClientBuffer buffer, _EGLConfig *config, const EGLint *attrib_list);
 #endif /* EGL_VERSION_1_2 */
 
 
diff --git a/src/egl/main/eglconfig.c b/src/egl/main/eglconfig.c
index bbc585b..d47b99e 100644
--- a/src/egl/main/eglconfig.c
+++ b/src/egl/main/eglconfig.c
@@ -71,10 +71,9 @@ _eglGetConfigHandle(_EGLConfig *config)
  * This is the inverse of _eglGetConfigHandle().
  */
 _EGLConfig *
-_eglLookupConfig(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config)
+_eglLookupConfig(EGLConfig config, _EGLDisplay *disp)
 {
    EGLint i;
-   _EGLDisplay *disp = _eglLookupDisplay(dpy);
    for (i = 0; i < disp->NumConfigs; i++) {
       if (disp->Configs[i]->Handle == config) {
           return disp->Configs[i];
@@ -319,10 +318,9 @@ _eglCompareConfigs(const void *a, const void *b)
  * Typical fallback routine for eglChooseConfig
  */
 EGLBoolean
-_eglChooseConfig(_EGLDriver *drv, EGLDisplay dpy, const EGLint *attrib_list,
+_eglChooseConfig(_EGLDriver *drv, _EGLDisplay *disp, const EGLint *attrib_list,
                  EGLConfig *configs, EGLint config_size, EGLint *num_configs)
 {
-   _EGLDisplay *disp = _eglLookupDisplay(dpy);
    _EGLConfig **configList, criteria;
    EGLint i, count;
 
@@ -367,10 +365,9 @@ _eglChooseConfig(_EGLDriver *drv, EGLDisplay dpy, const EGLint *attrib_list,
  * Fallback for eglGetConfigAttrib.
  */
 EGLBoolean
-_eglGetConfigAttrib(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
+_eglGetConfigAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
                     EGLint attribute, EGLint *value)
 {
-   const _EGLConfig *conf = _eglLookupConfig(drv, dpy, config);
    const EGLint k = attribute - FIRST_ATTRIB;
    if (k >= 0 && k < MAX_ATTRIBS) {
       *value = conf->Attrib[k];
@@ -387,16 +384,9 @@ _eglGetConfigAttrib(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
  * Fallback for eglGetConfigs.
  */
 EGLBoolean
-_eglGetConfigs(_EGLDriver *drv, EGLDisplay dpy, EGLConfig *configs,
+_eglGetConfigs(_EGLDriver *drv, _EGLDisplay *disp, EGLConfig *configs,
                EGLint config_size, EGLint *num_config)
 {
-   _EGLDisplay *disp = _eglLookupDisplay(dpy);
-
-   if (!drv->Initialized) {
-      _eglError(EGL_NOT_INITIALIZED, "eglGetConfigs");
-      return EGL_FALSE;
-   }
-
    if (configs) {
       EGLint i;
       *num_config = MIN2(disp->NumConfigs, config_size);
diff --git a/src/egl/main/eglconfig.h b/src/egl/main/eglconfig.h
index db1c4c1..36ed96a 100644
--- a/src/egl/main/eglconfig.h
+++ b/src/egl/main/eglconfig.h
@@ -34,7 +34,7 @@ _eglGetConfigHandle(_EGLConfig *config);
 
 
 extern _EGLConfig *
-_eglLookupConfig(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config);
+_eglLookupConfig(EGLConfig config, _EGLDisplay *dpy);
 
 
 extern _EGLConfig *
@@ -46,15 +46,15 @@ _eglParseConfigAttribs(_EGLConfig *config, const EGLint *attrib_list);
 
 
 extern EGLBoolean
-_eglChooseConfig(_EGLDriver *drv, EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
+_eglChooseConfig(_EGLDriver *drv, _EGLDisplay *dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
 
 
 extern EGLBoolean
-_eglGetConfigAttrib(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value);
+_eglGetConfigAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, EGLint attribute, EGLint *value);
 
 
 extern EGLBoolean
-_eglGetConfigs(_EGLDriver *drv, EGLDisplay dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config);
+_eglGetConfigs(_EGLDriver *drv, _EGLDisplay *dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config);
 
 
 extern void
diff --git a/src/egl/main/eglcontext.c b/src/egl/main/eglcontext.c
index 88de60d..b094f49 100644
--- a/src/egl/main/eglcontext.c
+++ b/src/egl/main/eglcontext.c
@@ -25,11 +25,6 @@ _eglInitContext(_EGLDriver *drv, _EGLContext *ctx,
       return EGL_FALSE;
    }
 
-   if (!conf) {
-      _eglError(EGL_BAD_CONFIG, "_eglInitContext");
-      return EGL_FALSE;
-   }
-
    memset(ctx, 0, sizeof(_EGLContext));
 
    ctx->ClientVersion = 1; /* the default, per EGL spec */
@@ -58,32 +53,25 @@ _eglInitContext(_EGLDriver *drv, _EGLContext *ctx,
 /**
  * Just a placeholder/demo function.  Real driver will never use this!
  */
-EGLContext
-_eglCreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
-                  EGLContext share_list, const EGLint *attrib_list)
+_EGLContext *
+_eglCreateContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
+                  _EGLContext *share_list, const EGLint *attrib_list)
 {
 #if 0 /* example code */
    _EGLContext *context;
-   _EGLConfig *conf;
-
-   conf = _eglLookupConfig(drv, dpy, config);
-   if (!conf) {
-      _eglError(EGL_BAD_CONFIG, "eglCreateContext");
-      return EGL_NO_CONTEXT;
-   }
 
    context = (_EGLContext *) calloc(1, sizeof(_EGLContext));
    if (!context)
-      return EGL_NO_CONTEXT;
+      return NULL;
 
    if (!_eglInitContext(drv, context, conf, attrib_list)) {
       free(context);
-      return EGL_NO_CONTEXT;
+      return NULL;
    }
 
-   return _eglLinkContext(context, _eglLookupDisplay(dpy));
+   return context;
 #endif
-   return EGL_NO_CONTEXT;
+   return NULL;
 }
 
 
@@ -91,36 +79,21 @@ _eglCreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
  * Default fallback routine - drivers should usually override this.
  */
 EGLBoolean
-_eglDestroyContext(_EGLDriver *drv, EGLDisplay dpy, EGLContext ctx)
+_eglDestroyContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx)
 {
-   _EGLContext *context = _eglLookupContext(ctx);
-   if (context) {
-      _eglUnlinkContext(context);
-      if (!_eglIsContextBound(context))
-         free(context);
-      return EGL_TRUE;
-   }
-   else {
-      _eglError(EGL_BAD_CONTEXT, "eglDestroyContext");
-      return EGL_TRUE;
-   }
+   if (!_eglIsContextBound(ctx))
+      free(ctx);
+   return EGL_TRUE;
 }
 
 
 EGLBoolean
-_eglQueryContext(_EGLDriver *drv, EGLDisplay dpy, EGLContext ctx,
+_eglQueryContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *c,
                  EGLint attribute, EGLint *value)
 {
-   _EGLContext *c = _eglLookupContext(ctx);
-
    (void) drv;
    (void) dpy;
 
-   if (!c) {
-      _eglError(EGL_BAD_CONTEXT, "eglQueryContext");
-      return EGL_FALSE;
-   }
-
    switch (attribute) {
    case EGL_CONFIG_ID:
       *value = GET_CONFIG_ATTRIB(c->Config, EGL_CONFIG_ID);
@@ -146,14 +119,10 @@ _eglQueryContext(_EGLDriver *drv, EGLDisplay dpy, EGLContext ctx,
  * Then, the driver will do its device-dependent Make-Current stuff.
  */
 EGLBoolean
-_eglMakeCurrent(_EGLDriver *drv, EGLDisplay display, EGLSurface d,
-                EGLSurface r, EGLContext context)
+_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *draw,
+                _EGLSurface *read, _EGLContext *ctx)
 {
    _EGLThreadInfo *t = _eglGetCurrentThread();
-   _EGLDisplay *dpy = _eglLookupDisplay(display);
-   _EGLContext *ctx = _eglLookupContext(context);
-   _EGLSurface *draw = _eglLookupSurface(d);
-   _EGLSurface *read = _eglLookupSurface(r);
    _EGLContext *oldContext = NULL;
    _EGLSurface *oldDrawSurface = NULL;
    _EGLSurface *oldReadSurface = NULL;
@@ -161,18 +130,13 @@ _eglMakeCurrent(_EGLDriver *drv, EGLDisplay display, EGLSurface d,
 
    if (_eglIsCurrentThreadDummy())
       return _eglError(EGL_BAD_ALLOC, "eglMakeCurrent");
-   if (dpy == NULL)
-      return _eglError(EGL_BAD_DISPLAY, "eglMakeCurrent");
 
    if (ctx) {
       /* error checking */
       if (ctx->Binding && ctx->Binding != t)
          return _eglError(EGL_BAD_ACCESS, "eglMakeCurrent");
-      if (draw == NULL || read == NULL) {
-         EGLint err = (d == EGL_NO_SURFACE || r == EGL_NO_SURFACE)
-                      ? EGL_BAD_MATCH : EGL_BAD_SURFACE;
-         return _eglError(err, "eglMakeCurrent");
-      }
+      if (draw == NULL || read == NULL)
+         return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
       if (draw->Config != ctx->Config || read->Config != ctx->Config)
          return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
       if ((draw->Binding && draw->Binding->Binding != t) ||
@@ -197,8 +161,6 @@ _eglMakeCurrent(_EGLDriver *drv, EGLDisplay display, EGLSurface d,
       apiIndex = _eglConvertApiToIndex(ctx->ClientAPI);
    }
    else {
-      if (context != EGL_NO_CONTEXT)
-         return _eglError(EGL_BAD_CONTEXT, "eglMakeCurrent");
       if (draw != NULL || read != NULL)
          return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
       apiIndex = t->CurrentAPIIndex;
@@ -221,23 +183,19 @@ _eglMakeCurrent(_EGLDriver *drv, EGLDisplay display, EGLSurface d,
 
       /*
        * check if the old context or surfaces need to be deleted
-       * FIXME They are linked so that they can be unlinked.  This is ugly.
        */
       if (!_eglIsSurfaceLinked(oldDrawSurface)) {
          assert(draw != oldDrawSurface && read != oldDrawSurface);
-         drv->API.DestroySurface(drv, display,
-                                 _eglLinkSurface(oldDrawSurface, dpy));
+         drv->API.DestroySurface(drv, dpy, oldDrawSurface);
       }
       if (oldReadSurface != oldDrawSurface &&
           !_eglIsSurfaceLinked(oldReadSurface)) {
          assert(draw != oldReadSurface && read != oldReadSurface);
-         drv->API.DestroySurface(drv, display,
-                                 _eglLinkSurface(oldReadSurface, dpy));
+         drv->API.DestroySurface(drv, dpy, oldReadSurface);
       }
       if (!_eglIsContextLinked(oldContext)) {
          assert(ctx != oldContext);
-         drv->API.DestroyContext(drv, display,
-                                 _eglLinkContext(oldContext, dpy));
+         drv->API.DestroyContext(drv, dpy, oldContext);
       }
    }
 
diff --git a/src/egl/main/eglcontext.h b/src/egl/main/eglcontext.h
index 4276c09..647f244 100644
--- a/src/egl/main/eglcontext.h
+++ b/src/egl/main/eglcontext.h
@@ -32,20 +32,20 @@ _eglInitContext(_EGLDriver *drv, _EGLContext *ctx,
                 _EGLConfig *config, const EGLint *attrib_list);
 
 
-extern EGLContext
-_eglCreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, EGLContext share_list, const EGLint *attrib_list);
+extern _EGLContext *
+_eglCreateContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, _EGLContext *share_list, const EGLint *attrib_list);
 
 
 extern EGLBoolean
-_eglDestroyContext(_EGLDriver *drv, EGLDisplay dpy, EGLContext ctx);
+_eglDestroyContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx);
 
 
 extern EGLBoolean
-_eglQueryContext(_EGLDriver *drv, EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint *value);
+_eglQueryContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx, EGLint attribute, EGLint *value);
 
 
 extern EGLBoolean
-_eglMakeCurrent(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
+_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *draw, _EGLSurface *read, _EGLContext *ctx);
 
 
 extern EGLBoolean
diff --git a/src/egl/main/egldisplay.c b/src/egl/main/egldisplay.c
index feae1d6..c684e42 100644
--- a/src/egl/main/egldisplay.c
+++ b/src/egl/main/egldisplay.c
@@ -200,29 +200,29 @@ _eglFindDisplay(NativeDisplayType nativeDisplay)
  * Destroy the contexts and surfaces that are linked to the display.
  */
 void
-_eglReleaseDisplayResources(_EGLDriver *drv, EGLDisplay dpy)
+_eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *display)
 {
-   _EGLDisplay *display;
    _EGLContext *contexts;
    _EGLSurface *surfaces;
 
-   display = _eglLookupDisplay(dpy);
-   if (!display)
-      return;
    contexts = display->ContextList;
    surfaces = display->SurfaceList;
 
    while (contexts) {
-      EGLContext handle = _eglGetContextHandle(contexts);
+      _EGLContext *ctx = contexts;
       contexts = contexts->Next;
-      drv->API.DestroyContext(drv, dpy, handle);
+
+      _eglUnlinkContext(ctx);
+      drv->API.DestroyContext(drv, display, ctx);
    }
    assert(!display->ContextList);
 
    while (surfaces) {
-      EGLSurface handle = _eglGetSurfaceHandle(surfaces);
+      _EGLSurface *surf = surfaces;
       surfaces = surfaces->Next;
-      drv->API.DestroySurface(drv, dpy, handle);
+
+      _eglUnlinkSurface(surf);
+      drv->API.DestroySurface(drv, display, surf);
    }
    assert(!display->SurfaceList);
 }
@@ -309,7 +309,7 @@ _eglGetContextHandle(_EGLContext *ctx)
  * Return NULL if the handle has no corresponding linked context.
  */
 _EGLContext *
-_eglLookupContext(EGLContext ctx)
+_eglLookupContext(EGLContext ctx, _EGLDisplay *dpy)
 {
    _EGLContext *context = (_EGLContext *) ctx;
    return (context && context->Display) ? context : NULL;
@@ -389,8 +389,8 @@ _eglGetSurfaceHandle(_EGLSurface *surface)
  * Return NULL if the handle has no corresponding linked surface.
  */
 _EGLSurface *
-_eglLookupSurface(EGLSurface surf)
+_eglLookupSurface(EGLSurface surf, _EGLDisplay *dpy)
 {
    EGLuint key = _eglPointerToUInt((void *) surf);
-   return (_EGLSurface *) _eglHashLookup(_eglSurfaceHash, key);
+   return (_EGLSurface *) _eglHashLookup(dpy->SurfaceHash, key);
 }
diff --git a/src/egl/main/egldisplay.h b/src/egl/main/egldisplay.h
index 70c59ef..1ebc0fc 100644
--- a/src/egl/main/egldisplay.h
+++ b/src/egl/main/egldisplay.h
@@ -72,7 +72,7 @@ _eglFindDisplay(NativeDisplayType nativeDisplay);
 
 
 extern void
-_eglReleaseDisplayResources(_EGLDriver *drv, EGLDisplay dpy);
+_eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy);
 
 
 extern void
@@ -92,7 +92,7 @@ _eglGetContextHandle(_EGLContext *ctx);
 
 
 extern _EGLContext *
-_eglLookupContext(EGLContext ctx);
+_eglLookupContext(EGLContext ctx, _EGLDisplay *dpy);
 
 
 /**
@@ -117,7 +117,7 @@ _eglGetSurfaceHandle(_EGLSurface *);
 
 
 extern _EGLSurface *
-_eglLookupSurface(EGLSurface surf);
+_eglLookupSurface(EGLSurface surf, _EGLDisplay *dpy);
 
 
 /**
diff --git a/src/egl/main/egldriver.c b/src/egl/main/egldriver.c
index f2a864c..a8ac7b3 100644
--- a/src/egl/main/egldriver.c
+++ b/src/egl/main/egldriver.c
@@ -277,7 +277,7 @@ _eglOpenDriver(_EGLDisplay *dpy, const char *driverName, const char *args)
 
 
 EGLBoolean
-_eglCloseDriver(_EGLDriver *drv, EGLDisplay dpy)
+_eglCloseDriver(_EGLDriver *drv, _EGLDisplay *dpy)
 {
    void *handle = drv->LibHandle;
    EGLBoolean b;
diff --git a/src/egl/main/egldriver.h b/src/egl/main/egldriver.h
index 4066c6e..d97a24d 100644
--- a/src/egl/main/egldriver.h
+++ b/src/egl/main/egldriver.h
@@ -59,7 +59,7 @@ _eglOpenDriver(_EGLDisplay *dpy, const char *driverName, const char *args);
 
 
 extern EGLBoolean
-_eglCloseDriver(_EGLDriver *drv, EGLDisplay dpy);
+_eglCloseDriver(_EGLDriver *drv, _EGLDisplay *dpy);
 
 
 extern void
diff --git a/src/egl/main/eglmisc.c b/src/egl/main/eglmisc.c
index b5bdc3e..3440b77 100644
--- a/src/egl/main/eglmisc.c
+++ b/src/egl/main/eglmisc.c
@@ -77,7 +77,7 @@ _eglUpdateAPIsString(_EGLDriver *drv)
 
 
 const char *
-_eglQueryString(_EGLDriver *drv, EGLDisplay dpy, EGLint name)
+_eglQueryString(_EGLDriver *drv, _EGLDisplay *dpy, EGLint name)
 {
    (void) drv;
    (void) dpy;
@@ -102,7 +102,7 @@ _eglQueryString(_EGLDriver *drv, EGLDisplay dpy, EGLint name)
 
 
 EGLBoolean
-_eglWaitGL(_EGLDriver *drv, EGLDisplay dpy)
+_eglWaitGL(_EGLDriver *drv, _EGLDisplay *dpy)
 {
    /* just a placeholder */
    (void) drv;
@@ -112,7 +112,7 @@ _eglWaitGL(_EGLDriver *drv, EGLDisplay dpy)
 
 
 EGLBoolean
-_eglWaitNative(_EGLDriver *drv, EGLDisplay dpy, EGLint engine)
+_eglWaitNative(_EGLDriver *drv, _EGLDisplay *dpy, EGLint engine)
 {
    /* just a placeholder */
    (void) drv;
diff --git a/src/egl/main/eglmisc.h b/src/egl/main/eglmisc.h
index 4e2a40e..a15c839 100644
--- a/src/egl/main/eglmisc.h
+++ b/src/egl/main/eglmisc.h
@@ -33,15 +33,15 @@
 
 
 extern const char *
-_eglQueryString(_EGLDriver *drv, EGLDisplay dpy, EGLint name);
+_eglQueryString(_EGLDriver *drv, _EGLDisplay *dpy, EGLint name);
 
 
 extern EGLBoolean
-_eglWaitGL(_EGLDriver *drv, EGLDisplay dpy);
+_eglWaitGL(_EGLDriver *drv, _EGLDisplay *dpy);
 
 
 extern EGLBoolean
-_eglWaitNative(_EGLDriver *drv, EGLDisplay dpy, EGLint engine);
+_eglWaitNative(_EGLDriver *drv, _EGLDisplay *dpy, EGLint engine);
 
 
 #endif /* EGLMISC_INCLUDED */
diff --git a/src/egl/main/eglmode.c b/src/egl/main/eglmode.c
index 7864322..0f3ba6e 100644
--- a/src/egl/main/eglmode.c
+++ b/src/egl/main/eglmode.c
@@ -34,9 +34,8 @@ my_strdup(const char *s)
  * or null if non-existant.
  */
 _EGLMode *
-_eglLookupMode(EGLDisplay dpy, EGLModeMESA mode)
+_eglLookupMode(EGLModeMESA mode, _EGLDisplay *disp)
 {
-   const _EGLDisplay *disp = _eglLookupDisplay(dpy);
    EGLint scrnum;
 
    /* loop over all screens on the display */
@@ -272,19 +271,13 @@ _eglCompareModes(const void *a, const void *b)
  * Called via eglChooseModeMESA API function.
  */
 EGLBoolean
-_eglChooseModeMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen,
+_eglChooseModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn,
                    const EGLint *attrib_list, EGLModeMESA *modes,
                    EGLint modes_size, EGLint *num_modes)
 {
-   const _EGLScreen *scrn = _eglLookupScreen(dpy, screen);
    _EGLMode **modeList, min;
    EGLint i, count;
 
-   if (!scrn) {
-      _eglError(EGL_BAD_SCREEN_MESA, "eglChooseModeMESA");
-      return EGL_FALSE;
-   }
-
    if (!_eglParseModeAttribs(&min, attrib_list)) {
       /* error code will have been recorded */
       return EGL_FALSE;
@@ -326,16 +319,9 @@ _eglChooseModeMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen,
  * Called via eglGetModesMESA() API function.
  */
 EGLBoolean
-_eglGetModesMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen,
+_eglGetModesMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn,
                  EGLModeMESA *modes, EGLint modes_size, EGLint *num_modes)
 {
-   _EGLScreen *scrn = _eglLookupScreen(dpy, screen);
-
-   if (!scrn) {
-      _eglError(EGL_BAD_SCREEN_MESA, "eglGetModesMESA");
-      return EGL_FALSE;
-   }
-
    if (modes) {
       EGLint i;
       *num_modes = MIN2(scrn->NumModes, modes_size);
@@ -356,17 +342,11 @@ _eglGetModesMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen,
  * Query an attribute of a mode.
  */
 EGLBoolean
-_eglGetModeAttribMESA(_EGLDriver *drv, EGLDisplay dpy,
-                      EGLModeMESA mode, EGLint attribute, EGLint *value)
+_eglGetModeAttribMESA(_EGLDriver *drv, _EGLDisplay *dpy,
+                      _EGLMode *m, EGLint attribute, EGLint *value)
 {
-   _EGLMode *m = _eglLookupMode(dpy, mode);
    EGLint v;
 
-   if (!m) {
-      _eglError(EGL_BAD_MODE_MESA, "eglGetModeAttribMESA");
-      return EGL_FALSE;
-   }
-
    v = getModeAttrib(m, attribute);
    if (v < 0) {
       _eglError(EGL_BAD_ATTRIBUTE, "eglGetModeAttribMESA");
@@ -382,13 +362,8 @@ _eglGetModeAttribMESA(_EGLDriver *drv, EGLDisplay dpy,
  * This is the default function called by eglQueryModeStringMESA().
  */
 const char *
-_eglQueryModeStringMESA(_EGLDriver *drv, EGLDisplay dpy, EGLModeMESA mode)
+_eglQueryModeStringMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLMode *m)
 {
-   _EGLMode *m = _eglLookupMode(dpy, mode);
-   if (!m) {
-      _eglError(EGL_BAD_MODE_MESA, "eglQueryModeStringMESA");
-      return NULL;
-   }
    return m->Name;
 }
 
diff --git a/src/egl/main/eglmode.h b/src/egl/main/eglmode.h
index 52d4875..af7c2c5 100644
--- a/src/egl/main/eglmode.h
+++ b/src/egl/main/eglmode.h
@@ -26,7 +26,7 @@ struct _egl_mode
 
 
 extern _EGLMode *
-_eglLookupMode(EGLDisplay dpy, EGLModeMESA mode);
+_eglLookupMode(EGLModeMESA mode, _EGLDisplay *dpy);
 
 
 extern _EGLMode *
@@ -35,23 +35,23 @@ _eglAddNewMode(_EGLScreen *screen, EGLint width, EGLint height,
 
 
 extern EGLBoolean
-_eglChooseModeMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen,
+_eglChooseModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn,
                    const EGLint *attrib_list, EGLModeMESA *modes,
                    EGLint modes_size, EGLint *num_modes);
 
 
 extern EGLBoolean
-_eglGetModesMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen,
+_eglGetModesMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn,
                  EGLModeMESA *modes, EGLint modes_size, EGLint *num_modes);
 
 
 extern EGLBoolean
-_eglGetModeAttribMESA(_EGLDriver *drv, EGLDisplay dpy, EGLModeMESA mode,
+_eglGetModeAttribMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLMode *m,
                       EGLint attribute, EGLint *value);
 
 
 extern const char *
-_eglQueryModeStringMESA(_EGLDriver *drv, EGLDisplay dpy, EGLModeMESA mode);
+_eglQueryModeStringMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLMode *m);
 
 
 #endif /* EGLMODE_INCLUDED */
diff --git a/src/egl/main/eglscreen.c b/src/egl/main/eglscreen.c
index b6bde65..14a1e9f 100644
--- a/src/egl/main/eglscreen.c
+++ b/src/egl/main/eglscreen.c
@@ -52,13 +52,9 @@ _eglInitScreen(_EGLScreen *screen)
  * Given a public screen handle, return the internal _EGLScreen object.
  */
 _EGLScreen *
-_eglLookupScreen(EGLDisplay dpy, EGLScreenMESA screen)
+_eglLookupScreen(EGLScreenMESA screen, _EGLDisplay *display)
 {
    EGLint i;
-   _EGLDisplay *display = _eglLookupDisplay(dpy);
-
-   if (!display)
-      return NULL;
 
    for (i = 0; i < display->NumScreens; i++) {
       if (display->Screens[i]->Handle == screen)
@@ -89,17 +85,11 @@ _eglAddScreen(_EGLDisplay *display, _EGLScreen *screen)
 
 
 EGLBoolean
-_eglGetScreensMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA *screens,
+_eglGetScreensMESA(_EGLDriver *drv, _EGLDisplay *display, EGLScreenMESA *screens,
                    EGLint max_screens, EGLint *num_screens)
 {
-   _EGLDisplay *display = _eglLookupDisplay(dpy);
    EGLint n;
 
-   if (!display) {
-      _eglError(EGL_BAD_DISPLAY, "eglGetScreensMESA");
-      return EGL_FALSE;
-   }
-
    if (display->NumScreens > max_screens) {
       n = max_screens;
    }
@@ -122,33 +112,26 @@ _eglGetScreensMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA *screens,
 /**
  * Example function - drivers should do a proper implementation.
  */
-EGLSurface
-_eglCreateScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
+_EGLSurface *
+_eglCreateScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
                             const EGLint *attrib_list)
 {
 #if 0 /* THIS IS JUST EXAMPLE CODE */
    _EGLSurface *surf;
-   _EGLConfig *conf;
-
-   conf = _eglLookupConfig(drv, dpy, config);
-   if (!conf) {
-      _eglError(EGL_BAD_CONFIG, "eglCreateScreenSurfaceMESA");
-      return EGL_NO_SURFACE;
-   }
 
    surf = (_EGLSurface *) calloc(1, sizeof(_EGLSurface));
    if (!surf)
-      return EGL_NO_SURFACE;
+      return NULL;
 
    if (!_eglInitSurface(drv, surf, EGL_SCREEN_BIT_MESA,
                         conf, attrib_list)) {
       free(surf);
-      return EGL_NO_SURFACE;
+      return NULL;
    }
 
-   return _eglLinkSurface(surf, _eglLookupDisplay(dpy));
+   return surf;
 #endif
-   return EGL_NO_SURFACE;
+   return NULL;
 }
 
 
@@ -160,28 +143,15 @@ _eglCreateScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
  * this with code that _really_ shows the surface.
  */
 EGLBoolean
-_eglShowScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy,
-                          EGLScreenMESA screen, EGLSurface surface,
-                          EGLModeMESA m)
+_eglShowScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy,
+                          _EGLScreen *scrn, _EGLSurface *surf,
+                          _EGLMode *mode)
 {
-   _EGLScreen *scrn = _eglLookupScreen(dpy, screen);
-   _EGLMode *mode = _eglLookupMode(dpy, m);
-
-   if (!scrn) {
-      _eglError(EGL_BAD_SCREEN_MESA, "eglShowSurfaceMESA");
-      return EGL_FALSE;
-   }
-   if (!mode && (m != EGL_NO_MODE_MESA )) {
-      _eglError(EGL_BAD_MODE_MESA, "eglShowSurfaceMESA");
-      return EGL_FALSE;
-   }
-
-   if (surface == EGL_NO_SURFACE) {
+   if (!surf) {
       scrn->CurrentSurface = NULL;
    }
    else {
-      _EGLSurface *surf = _eglLookupSurface(surface);
-      if (!surf || surf->Type != EGL_SCREEN_BIT_MESA) {
+      if (surf->Type != EGL_SCREEN_BIT_MESA) {
          _eglError(EGL_BAD_SURFACE, "eglShowSurfaceMESA");
          return EGL_FALSE;
       }
@@ -206,18 +176,10 @@ _eglShowScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy,
  * this with code that _really_ sets the mode.
  */
 EGLBoolean
-_eglScreenModeMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen,
-                   EGLModeMESA mode)
+_eglScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn,
+                   _EGLMode *m)
 {
-   _EGLScreen *scrn = _eglLookupScreen(dpy, screen);
-
-   if (!scrn) {
-      _eglError(EGL_BAD_SCREEN_MESA, "eglScreenModeMESA");
-      return EGL_FALSE;
-   }
-
-   scrn->CurrentMode = _eglLookupMode(dpy, mode);
-
+   scrn->CurrentMode = m;
    return EGL_TRUE;
 }
 
@@ -226,15 +188,9 @@ _eglScreenModeMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen,
  * Set a screen's surface origin.
  */
 EGLBoolean
-_eglScreenPositionMESA(_EGLDriver *drv, EGLDisplay dpy,
-                       EGLScreenMESA screen, EGLint x, EGLint y)
+_eglScreenPositionMESA(_EGLDriver *drv, _EGLDisplay *dpy,
+                       _EGLScreen *scrn, EGLint x, EGLint y)
 {
-   _EGLScreen *scrn = _eglLookupScreen(dpy, screen);
-   if (!scrn) {
-      _eglError(EGL_BAD_SCREEN_MESA, "eglScreenPositionMESA");
-      return EGL_FALSE;
-   }
-
    scrn->OriginX = x;
    scrn->OriginY = y;
 
@@ -246,14 +202,10 @@ _eglScreenPositionMESA(_EGLDriver *drv, EGLDisplay dpy,
  * Query a screen's current surface.
  */
 EGLBoolean
-_eglQueryScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy,
-                           EGLScreenMESA screen, EGLSurface *surface)
+_eglQueryScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy,
+                           _EGLScreen *scrn, _EGLSurface **surf)
 {
-   const _EGLScreen *scrn = _eglLookupScreen(dpy, screen);
-   if (scrn->CurrentSurface)
-      *surface = scrn->CurrentSurface->Handle;
-   else
-      *surface = EGL_NO_SURFACE;
+   *surf = scrn->CurrentSurface;
    return EGL_TRUE;
 }
 
@@ -262,29 +214,18 @@ _eglQueryScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy,
  * Query a screen's current mode.
  */
 EGLBoolean
-_eglQueryScreenModeMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen,
-                        EGLModeMESA *mode)
+_eglQueryScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn,
+                        _EGLMode **m)
 {
-   const _EGLScreen *scrn = _eglLookupScreen(dpy, screen);
-   if (scrn->CurrentMode)
-      *mode = scrn->CurrentMode->Handle;
-   else
-      *mode = EGL_NO_MODE_MESA;
+   *m = scrn->CurrentMode;
    return EGL_TRUE;
 }
 
 
 EGLBoolean
-_eglQueryScreenMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen,
+_eglQueryScreenMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn,
                     EGLint attribute, EGLint *value)
 {
-   const _EGLScreen *scrn = _eglLookupScreen(dpy, screen);
-
-   if (!scrn) {
-      _eglError(EGL_BAD_SCREEN_MESA, "eglQueryScreenMESA");
-      return EGL_FALSE;
-   }
-
    switch (attribute) {
    case EGL_SCREEN_POSITION_MESA:
       value[0] = scrn->OriginX;
diff --git a/src/egl/main/eglscreen.h b/src/egl/main/eglscreen.h
index 833439b..8860a2a 100644
--- a/src/egl/main/eglscreen.h
+++ b/src/egl/main/eglscreen.h
@@ -35,7 +35,7 @@ _eglInitScreen(_EGLScreen *screen);
 
 
 extern _EGLScreen *
-_eglLookupScreen(EGLDisplay dpy, EGLScreenMESA screen);
+_eglLookupScreen(EGLScreenMESA screen, _EGLDisplay *dpy);
 
 
 extern void
@@ -43,40 +43,40 @@ _eglAddScreen(_EGLDisplay *display, _EGLScreen *screen);
 
 
 extern EGLBoolean
-_eglGetScreensMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA *screens, EGLint max_screens, EGLint *num_screens);
+_eglGetScreensMESA(_EGLDriver *drv, _EGLDisplay *dpy, EGLScreenMESA *screens, EGLint max_screens, EGLint *num_screens);
 
 
-extern EGLSurface
-_eglCreateScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list);
+extern _EGLSurface *
+_eglCreateScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, const EGLint *attrib_list);
 
 
 extern EGLBoolean
-_eglShowScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, EGLSurface surface, EGLModeMESA mode);
+_eglShowScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, _EGLSurface *surf, _EGLMode *m);
 
 
 extern EGLBoolean
-_eglScreenModeMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, EGLModeMESA mode);
+_eglScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, _EGLMode *m);
 
 
 extern EGLBoolean
-_eglScreenPositionMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, EGLint x, EGLint y);
+_eglScreenPositionMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, EGLint x, EGLint y);
 
 
 extern EGLBoolean
-_eglQueryDisplayMESA(_EGLDriver *drv, EGLDisplay dpy, EGLint attribute, EGLint *value);
+_eglQueryDisplayMESA(_EGLDriver *drv, _EGLDisplay *dpy, EGLint attribute, EGLint *value);
 
 
 extern EGLBoolean
-_eglQueryScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy,
-                           EGLScreenMESA screen, EGLSurface *surface);
+_eglQueryScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy,
+                           _EGLScreen *scrn, _EGLSurface **surface);
 
 
 extern EGLBoolean
-_eglQueryScreenModeMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, EGLModeMESA *mode);
+_eglQueryScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, _EGLMode **m);
 
 
 extern EGLBoolean
-_eglQueryScreenMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, EGLint attribute, EGLint *value);
+_eglQueryScreenMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, EGLint attribute, EGLint *value);
 
 
 extern void
diff --git a/src/egl/main/eglsurface.c b/src/egl/main/eglsurface.c
index 3947051..056288c 100644
--- a/src/egl/main/eglsurface.c
+++ b/src/egl/main/eglsurface.c
@@ -211,22 +211,15 @@ _eglInitSurface(_EGLDriver *drv, _EGLSurface *surf, EGLint type,
 
 
 EGLBoolean
-_eglSwapBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw)
+_eglSwapBuffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
 {
-   /* Basically just do error checking here.  Drivers have to do the
-    * actual buffer swap.
-    */
-   _EGLSurface *surface = _eglLookupSurface(draw);
-   if (surface == NULL) {
-      _eglError(EGL_BAD_SURFACE, "eglSwapBuffers");
-      return EGL_FALSE;
-   }
+   /* Drivers have to do the actual buffer swap.  */
    return EGL_TRUE;
 }
 
 
 EGLBoolean
-_eglCopyBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface,
+_eglCopyBuffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
                 NativePixmapType target)
 {
    /* copy surface to native pixmap */
@@ -236,14 +229,9 @@ _eglCopyBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface,
 
 
 EGLBoolean
-_eglQuerySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surf,
+_eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
                  EGLint attribute, EGLint *value)
 {
-   _EGLSurface *surface = _eglLookupSurface(surf);
-   if (surface == NULL) {
-      _eglError(EGL_BAD_SURFACE, "eglQuerySurface");
-      return EGL_FALSE;
-   }
    switch (attribute) {
    case EGL_WIDTH:
       *value = surface->Width;
@@ -312,96 +300,75 @@ _eglQuerySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surf,
 /**
  * Example function - drivers should do a proper implementation.
  */
-EGLSurface
-_eglCreateWindowSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
+_EGLSurface *
+_eglCreateWindowSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
                         NativeWindowType window, const EGLint *attrib_list)
 {
 #if 0 /* THIS IS JUST EXAMPLE CODE */
    _EGLSurface *surf;
-   _EGLConfig *conf;
-
-   conf = _eglLookupConfig(drv, dpy, config);
-   if (!conf) {
-      _eglError(EGL_BAD_CONFIG, "eglCreateWindowSurface");
-      return EGL_NO_SURFACE;
-   }
 
    surf = (_EGLSurface *) calloc(1, sizeof(_EGLSurface));
    if (!surf)
-      return EGL_NO_SURFACE;
+      return NULL;
 
    if (!_eglInitSurface(drv, surf, EGL_WINDOW_BIT, conf, attrib_list)) {
       free(surf);
-      return EGL_NO_SURFACE;
+      return NULL;
    }
 
-   return _eglLinkSurface(surf, _eglLookupDisplay(dpy));
+   return surf;
 #endif
-   return EGL_NO_SURFACE;
+   return NULL;
 }
 
 
 /**
  * Example function - drivers should do a proper implementation.
  */
-EGLSurface
-_eglCreatePixmapSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
+_EGLSurface *
+_eglCreatePixmapSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
                         NativePixmapType pixmap, const EGLint *attrib_list)
 {
 #if 0 /* THIS IS JUST EXAMPLE CODE */
    _EGLSurface *surf;
-   _EGLConfig *conf;
-
-   conf = _eglLookupConfig(drv, dpy, config);
-   if (!conf) {
-      _eglError(EGL_BAD_CONFIG, "eglCreatePixmapSurface");
-      return EGL_NO_SURFACE;
-   }
 
    surf = (_EGLSurface *) calloc(1, sizeof(_EGLSurface));
    if (!surf)
-      return EGL_NO_SURFACE;
+      return NULL;
 
    if (!_eglInitSurface(drv, surf, EGL_PIXMAP_BIT, conf, attrib_list)) {
       free(surf);
-      return EGL_NO_SURFACE;
+      return NULL;
    }
 
-   return _eglLinkSurface(surf, _eglLookupDisplay(dpy));
+   return surf;
 #endif
-   return EGL_NO_SURFACE;
+   return NULL;
 }
 
 
 /**
  * Example function - drivers should do a proper implementation.
  */
-EGLSurface
-_eglCreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
+_EGLSurface *
+_eglCreatePbufferSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
                          const EGLint *attrib_list)
 {
 #if 0 /* THIS IS JUST EXAMPLE CODE */
    _EGLSurface *surf;
-   _EGLConfig *conf;
-
-   conf = _eglLookupConfig(drv, dpy, config);
-   if (!conf) {
-      _eglError(EGL_BAD_CONFIG, "eglCreatePbufferSurface");
-      return EGL_NO_SURFACE;
-   }
 
    surf = (_EGLSurface *) calloc(1, sizeof(_EGLSurface));
    if (!surf)
-      return EGL_NO_SURFACE;
+      return NULL;
 
    if (!_eglInitSurface(drv, surf, EGL_PBUFFER_BIT, conf, attrib_list)) {
       free(surf);
-      return EGL_NO_SURFACE;
+      return NULL;
    }
 
-   return _eglLinkSurface(surf, _eglLookupDisplay(dpy));
+   return NULL;
 #endif
-   return EGL_NO_SURFACE;
+   return NULL;
 }
 
 
@@ -409,19 +376,11 @@ _eglCreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
  * Default fallback routine - drivers should usually override this.
  */
 EGLBoolean
-_eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface)
+_eglDestroySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
 {
-   _EGLSurface *surf = _eglLookupSurface(surface);
-   if (surf) {
-      _eglUnlinkSurface(surf);
-      if (!_eglIsSurfaceBound(surf))
-         free(surf);
-      return EGL_TRUE;
-   }
-   else {
-      _eglError(EGL_BAD_SURFACE, "eglDestroySurface");
-      return EGL_FALSE;
-   }
+   if (!_eglIsSurfaceBound(surf))
+      free(surf);
+   return EGL_TRUE;
 }
 
 
@@ -429,16 +388,9 @@ _eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface)
  * Default fallback routine - drivers might override this.
  */
 EGLBoolean
-_eglSurfaceAttrib(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surf,
+_eglSurfaceAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
                   EGLint attribute, EGLint value)
 {
-   _EGLSurface *surface = _eglLookupSurface(surf);
-
-   if (surface == NULL) {
-      _eglError(EGL_BAD_SURFACE, "eglSurfaceAttrib");
-      return EGL_FALSE;
-   }
-
    switch (attribute) {
    case EGL_MIPMAP_LEVEL:
       surface->MipmapLevel = value;
@@ -452,15 +404,14 @@ _eglSurfaceAttrib(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surf,
 
 
 EGLBoolean
-_eglBindTexImage(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surf,
+_eglBindTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
                  EGLint buffer)
 {
    /* Just do basic error checking and return success/fail.
     * Drivers must implement the real stuff.
     */
-   _EGLSurface *surface = _eglLookupSurface(surf);
 
-   if (!surface || surface->Type != EGL_PBUFFER_BIT) {
+   if (surface->Type != EGL_PBUFFER_BIT) {
       _eglError(EGL_BAD_SURFACE, "eglBindTexImage");
       return EGL_FALSE;
    }
@@ -482,15 +433,14 @@ _eglBindTexImage(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surf,
 
 
 EGLBoolean
-_eglReleaseTexImage(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surf,
+_eglReleaseTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
                     EGLint buffer)
 {
    /* Just do basic error checking and return success/fail.
     * Drivers must implement the real stuff.
     */
-   _EGLSurface *surface = _eglLookupSurface(surf);
 
-   if (!surface || surface->Type != EGL_PBUFFER_BIT) {
+   if (surface->Type != EGL_PBUFFER_BIT) {
       _eglError(EGL_BAD_SURFACE, "eglBindTexImage");
       return EGL_FALSE;
    }
@@ -517,14 +467,11 @@ _eglReleaseTexImage(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surf,
 
 
 EGLBoolean
-_eglSwapInterval(_EGLDriver *drv, EGLDisplay dpy, EGLint interval)
+_eglSwapInterval(_EGLDriver *drv, _EGLDisplay *dpy, EGLint interval)
 {
    _EGLSurface *surf = _eglGetCurrentSurface(EGL_DRAW);
-   if (surf == NULL) {
-      _eglError(EGL_BAD_SURFACE, "eglSwapInterval");
-      return EGL_FALSE;
-   }
-   surf->SwapInterval = interval;
+   if (surf)
+      surf->SwapInterval = interval;
    return EGL_TRUE;
 }
 
@@ -534,17 +481,17 @@ _eglSwapInterval(_EGLDriver *drv, EGLDisplay dpy, EGLint interval)
 /**
  * Example function - drivers should do a proper implementation.
  */
-EGLSurface
-_eglCreatePbufferFromClientBuffer(_EGLDriver *drv, EGLDisplay dpy,
+_EGLSurface *
+_eglCreatePbufferFromClientBuffer(_EGLDriver *drv, _EGLDisplay *dpy,
                                   EGLenum buftype, EGLClientBuffer buffer,
-                                  EGLConfig config, const EGLint *attrib_list)
+                                  _EGLConfig *conf, const EGLint *attrib_list)
 {
    if (buftype != EGL_OPENVG_IMAGE) {
       _eglError(EGL_BAD_PARAMETER, "eglCreatePbufferFromClientBuffer");
-      return EGL_NO_SURFACE;
+      return NULL;
    }
 
-   return EGL_NO_SURFACE;
+   return NULL;
 }
 
 #endif /* EGL_VERSION_1_2 */
diff --git a/src/egl/main/eglsurface.h b/src/egl/main/eglsurface.h
index 8864176..cfae697 100644
--- a/src/egl/main/eglsurface.h
+++ b/src/egl/main/eglsurface.h
@@ -47,55 +47,55 @@ _eglInitSurface(_EGLDriver *drv, _EGLSurface *surf, EGLint type,
 
 
 extern EGLBoolean
-_eglSwapBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw);
+_eglSwapBuffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf);
 
 
 extern EGLBoolean
-_eglCopyBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, NativePixmapType target);
+_eglCopyBuffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, NativePixmapType target);
 
 
 extern EGLBoolean
-_eglQuerySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint *value);
+_eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint attribute, EGLint *value);
 
 
-extern EGLSurface
-_eglCreateWindowSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint *attrib_list);
+extern _EGLSurface *
+_eglCreateWindowSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, NativeWindowType window, const EGLint *attrib_list);
 
 
-extern EGLSurface
-_eglCreatePixmapSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativePixmapType pixmap, const EGLint *attrib_list);
+extern _EGLSurface *
+_eglCreatePixmapSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, NativePixmapType pixmap, const EGLint *attrib_list);
 
 
-extern EGLSurface
-_eglCreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list);
+extern _EGLSurface *
+_eglCreatePbufferSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, const EGLint *attrib_list);
 
 
 extern EGLBoolean
-_eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface);
+_eglDestroySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf);
 
 
 extern EGLBoolean
-_eglSurfaceAttrib(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value);
+_eglSurfaceAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint attribute, EGLint value);
 
 
 extern EGLBoolean
-_eglBindTexImage(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, EGLint buffer);
+_eglBindTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint buffer);
 
 
 extern EGLBoolean
-_eglReleaseTexImage(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface, EGLint buffer);
+_eglReleaseTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint buffer);
 
 
 extern EGLBoolean
-_eglSwapInterval(_EGLDriver *drv, EGLDisplay dpy, EGLint interval);
+_eglSwapInterval(_EGLDriver *drv, _EGLDisplay *dpy, EGLint interval);
 
 
 #ifdef EGL_VERSION_1_2
 
-extern EGLSurface
-_eglCreatePbufferFromClientBuffer(_EGLDriver *drv, EGLDisplay dpy,
+extern _EGLSurface *
+_eglCreatePbufferFromClientBuffer(_EGLDriver *drv, _EGLDisplay *dpy,
                                   EGLenum buftype, EGLClientBuffer buffer,
-                                  EGLConfig config, const EGLint *attrib_list);
+                                  _EGLConfig *conf, const EGLint *attrib_list);
 
 #endif /* EGL_VERSION_1_2 */