DRI2: Drop sarea, implement swap buffers in the X server.

19 files changed, 446 insertions, 639 deletions

diff --git a/include/GL/internal/dri_interface.h b/include/GL/internal/dri_interface.h
index e7780d2e26c..e4cc16b8660 100644
--- a/include/GL/internal/dri_interface.h
+++ b/include/GL/internal/dri_interface.h
@@ -75,6 +75,10 @@ typedef struct __DRItexOffsetExtensionRec	__DRItexOffsetExtension;
 typedef struct __DRItexBufferExtensionRec	__DRItexBufferExtension;
 typedef struct __DRIlegacyExtensionRec		__DRIlegacyExtension;
 typedef struct __DRIswrastExtensionRec		__DRIswrastExtension;
+typedef struct __DRIbufferRec			__DRIbuffer;
+typedef struct __DRIdri2ExtensionRec		__DRIdri2Extension;
+typedef struct __DRIdri2LoaderExtensionRec	__DRIdri2LoaderExtension;
+
 /*@}*/
 
 
@@ -343,29 +347,6 @@ struct __DRIdamageExtensionRec {
 			 void *loaderPrivate);
 };
 
-/**
- * DRI2 Loader extension.  This extension describes the basic
- * functionality the loader needs to provide for the DRI driver.
- */
-#define __DRI_LOADER "DRI_Loader"
-#define __DRI_LOADER_VERSION 1
-struct __DRIloaderExtensionRec {
-    __DRIextension base;
-
-    /**
-     * Ping the windowing system to get it to reemit info for the
-     * specified drawable in the DRI2 event buffer.
-     *
-     * \param draw the drawable for which to request info
-     * \param tail the new event buffer tail pointer
-     */
-    void (*reemitDrawableInfo)(__DRIdrawable *draw, unsigned int *tail,
-			       void *loaderPrivate);
-
-    void (*postDamage)(__DRIdrawable *draw, struct drm_clip_rect *rects,
-		       int num_rects, void *loaderPrivate);
-};
-
 #define __DRI_SWRAST_IMAGE_OP_DRAW	1
 #define __DRI_SWRAST_IMAGE_OP_CLEAR	2
 #define __DRI_SWRAST_IMAGE_OP_SWAP	3
@@ -633,4 +614,60 @@ struct __DRIswrastExtensionRec {
 					void *loaderPrivate);
 };
 
+/**
+ * DRI2 Loader extension.
+ */
+#define __DRI_BUFFER_FRONT_LEFT		0
+#define __DRI_BUFFER_BACK_LEFT		1
+#define __DRI_BUFFER_FRONT_RIGHT	2
+#define __DRI_BUFFER_BACK_RIGHT		3
+#define __DRI_BUFFER_DEPTH		4
+#define __DRI_BUFFER_STENCIL		5
+#define __DRI_BUFFER_ACCUM		6
+
+struct __DRIbufferRec {
+    unsigned int attachment;
+    unsigned int name;
+    unsigned int pitch;
+    unsigned int cpp;
+    unsigned int flags;
+};
+
+#define __DRI_DRI2_LOADER "DRI_DRI2Loader"
+#define __DRI_DRI2_LOADER_VERSION 1
+struct __DRIdri2LoaderExtensionRec {
+    __DRIextension base;
+
+    __DRIbuffer *(*getBuffers)(__DRIdrawable *driDrawable,
+			       int *width, int *height,
+			       unsigned int *attachments, int count,
+			       int *out_count, void *loaderPrivate);
+};
+
+/**
+ * This extension provides alternative screen, drawable and context
+ * constructors for DRI2.
+ */
+#define __DRI_DRI2 "DRI_DRI2"
+#define __DRI_DRI2_VERSION 1
+
+struct __DRIdri2ExtensionRec {
+    __DRIextension base;
+
+    __DRIscreen *(*createNewScreen)(int screen, int fd,
+				    const __DRIextension **extensions,
+				    const __DRIconfig ***driver_configs,
+				    void *loaderPrivate);
+
+    __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
+					const __DRIconfig *config,
+					void *loaderPrivate);
+
+    __DRIcontext *(*createNewContext)(__DRIscreen *screen,
+				      const __DRIconfig *config,
+				      __DRIcontext *shared,
+				      void *loaderPrivate);
+
+};
+
 #endif
diff --git a/include/GL/internal/dri_sarea.h b/include/GL/internal/dri_sarea.h
deleted file mode 100644
index 849161fbc11..00000000000
--- a/include/GL/internal/dri_sarea.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Copyright 2007 Red Hat, Inc
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * on the rights to use, copy, modify, merge, publish, distribute, sub
- * license, and/or sell copies of the Software, and to permit persons to whom
- * the Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef DRI_SAREA_H
-#define DRI_SAREA_H
-
-#include <drm.h>
-
-/* The DRI2 SAREA holds a list of self-describing blocks.  Each block
- * is 8 byte aligned and has a common 32-bit header word.  The upper
- * 16 bits describe the type of the block and the lower 16 bits the
- * size.  DRI2 only defines a couple of blocks and allows drivers to
- * define driver specific blocks using type codes from 0x8000 and up.
- * The type code 0x0000 defines the end of the sarea. */
-
-#define DRI2_SAREA_BLOCK_HEADER(type, size) (((type) << 16) | (size))
-#define DRI2_SAREA_BLOCK_TYPE(b) ((b) >> 16)
-#define DRI2_SAREA_BLOCK_SIZE(b) ((b) & 0xffff)
-#define DRI2_SAREA_BLOCK_NEXT(p)				\
-    ((void *) ((unsigned char *) (p) +				\
-               DRI2_SAREA_BLOCK_SIZE(*(unsigned int *) p)))
-
-#define DRI2_SAREA_BLOCK_END		0x0000
-#define DRI2_SAREA_BLOCK_LOCK		0x0001
-#define DRI2_SAREA_BLOCK_EVENT_BUFFER	0x0002
-
-/* Chipset specific blocks start at 0x8000, 0xffff is reserved. */
-
-typedef struct __DRILock __DRILock;
-typedef struct __DRIEventBuffer __DRIEventBuffer;
-typedef struct __DRIDrawableBuffer __DRIDrawableBuffer;
-typedef struct __DRIDrawableConfigEvent __DRIDrawableConfigEvent;
-typedef struct __DRIBufferAttachEvent __DRIBufferAttachEvent;
-
-struct __DRILock {
-    unsigned int block_header;
-    drm_hw_lock_t lock;
-
-    /* We use this with DRM_CAS to allocate lock IDs for the real lock.*/
-    unsigned int next_id;
-};
-
-struct __DRIEventBuffer {
-    unsigned int block_header;
-    unsigned int head;		/* last valid event */
-    unsigned int prealloc;	/* event currently being written */
-    unsigned int size;		/* size of data */
-    unsigned char data[0];
-};
-
-enum {
-        /* the four standard color buffers */
-        DRI_DRAWABLE_BUFFER_FRONT_LEFT  = 0,
-        DRI_DRAWABLE_BUFFER_BACK_LEFT   = 1,
-        DRI_DRAWABLE_BUFFER_FRONT_RIGHT = 2,
-        DRI_DRAWABLE_BUFFER_BACK_RIGHT  = 3,
-        /* optional aux buffer */
-        DRI_DRAWABLE_BUFFER_AUX0        = 4,
-        DRI_DRAWABLE_BUFFER_AUX1        = 5,
-        DRI_DRAWABLE_BUFFER_AUX2        = 6,
-        DRI_DRAWABLE_BUFFER_AUX3        = 7,
-        DRI_DRAWABLE_BUFFER_DEPTH       = 8,
-        DRI_DRAWABLE_BUFFER_STENCIL     = 9,
-        DRI_DRAWABLE_BUFFER_ACCUM       = 10,
-        /* generic renderbuffers */
-        DRI_DRAWABLE_BUFFER_COLOR0      = 11,
-        DRI_DRAWABLE_BUFFER_COLOR1      = 12,
-        DRI_DRAWABLE_BUFFER_COLOR2      = 13,
-        DRI_DRAWABLE_BUFFER_COLOR3      = 14,
-        DRI_DRAWABLE_BUFFER_COLOR4      = 15,
-        DRI_DRAWABLE_BUFFER_COLOR5      = 16,
-        DRI_DRAWABLE_BUFFER_COLOR6      = 17,
-        DRI_DRAWABLE_BUFFER_COLOR7      = 18,
-        DRI_DRAWABLE_BUFFER_COUNT       = 19
-};
-
-struct __DRIDrawableBuffer {
-    unsigned int attachment;
-    unsigned int handle;
-    unsigned int pitch;
-    unsigned short cpp;
-
-    /* Upper 8 bits are driver specific, lower 8 bits generic.  The
-     * bits can inidicate buffer properties such as tiled, swizzled etc. */
-    unsigned short flags;
-};
-
-#define DRI2_EVENT_HEADER(type, size) (((type) << 16) | (size))
-#define DRI2_EVENT_TYPE(b) ((b) >> 16)
-#define DRI2_EVENT_SIZE(b) ((b) & 0xffff)
-
-#define DRI2_EVENT_PAD			0x0000
-#define DRI2_EVENT_DRAWABLE_CONFIG	0x0001
-#define DRI2_EVENT_BUFFER_ATTACH	0x0002
-
-struct __DRIDrawableConfigEvent {
-    unsigned int		event_header;
-    unsigned int		drawable;
-    short			x;
-    short			y;
-    unsigned int		width;
-    unsigned int		height;
-    unsigned int		num_rects;
-    struct drm_clip_rect	rects[0];
-};
-
-struct __DRIBufferAttachEvent {
-    unsigned int	event_header;
-    unsigned int	drawable;
-    __DRIDrawableBuffer	buffer;
-};
-
-#endif /* DRI_SAREA_H */
diff --git a/src/glx/x11/dri2.c b/src/glx/x11/dri2.c
index e7044ab4248..dc60af90c15 100644
--- a/src/glx/x11/dri2.c
+++ b/src/glx/x11/dri2.c
@@ -122,7 +122,11 @@ Bool DRI2Connect(Display *dpy, int screen,
 	return False;
     }
 
-    *sareaHandle = rep.sareaHandle;
+    if (rep.driverNameLength == 0 && rep.busIdLength == 0) {
+	UnlockDisplay(dpy);
+	SyncHandle();
+	return False;
+    }
 
     *driverName = Xmalloc(rep.driverNameLength + 1);
     if (*driverName == NULL) {
@@ -150,7 +154,7 @@ Bool DRI2Connect(Display *dpy, int screen,
     UnlockDisplay(dpy);
     SyncHandle();
 
-    return rep.sareaHandle != 0;
+    return True;
 }
 
 Bool DRI2AuthConnection(Display *dpy, int screen, drm_magic_t magic)
@@ -179,74 +183,119 @@ Bool DRI2AuthConnection(Display *dpy, int screen, drm_magic_t magic)
     return rep.authenticated;
 }
 
-Bool DRI2CreateDrawable(Display *dpy, XID drawable,
-			unsigned int *handle, unsigned int *head)
+void DRI2CreateDrawable(Display *dpy, XID drawable)
 {
     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
-    xDRI2CreateDrawableReply rep;
     xDRI2CreateDrawableReq *req;
 
-    XextCheckExtension (dpy, info, dri2ExtensionName, False);
+    XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 
     LockDisplay(dpy);
     GetReq(DRI2CreateDrawable, req);
     req->reqType = info->codes->major_opcode;
     req->dri2ReqType = X_DRI2CreateDrawable;
     req->drawable = drawable;
+    UnlockDisplay(dpy);
+    SyncHandle();
+}
+
+DRI2Buffer *DRI2GetBuffers(Display *dpy, XID drawable,
+			   int *width, int *height,
+			   unsigned int *attachments, int count,
+			   int *outCount)
+{
+    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+    xDRI2GetBuffersReply rep;
+    xDRI2GetBuffersReq *req;
+    DRI2Buffer *buffers;
+    xDRI2Buffer repBuffer;
+    CARD32 *p;
+    int i;
+
+    XextCheckExtension (dpy, info, dri2ExtensionName, False);
+
+    LockDisplay(dpy);
+    GetReqExtra(DRI2GetBuffers, count * 4, req);
+    req->reqType = info->codes->major_opcode;
+    req->dri2ReqType = X_DRI2GetBuffers;
+    req->drawable = drawable;
+    req->count = count;
+    p = (CARD32 *) &req[1];
+    for (i = 0; i < count; i++)
+	p[i] = attachments[i];
+
     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 	UnlockDisplay(dpy);
 	SyncHandle();
-	return False;
+	return NULL;
+    }
+
+    *width = rep.width;
+    *height = rep.height;
+    *outCount = rep.count;
+
+    buffers = Xmalloc(count * sizeof buffers[0]);
+    if (buffers == NULL) {
+	_XEatData(dpy, rep.count * sizeof repBuffer);
+	UnlockDisplay(dpy);
+	SyncHandle();
+	return NULL;
+    }
+
+    for (i = 0; i < rep.count; i++) {
+	_XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
+	buffers[i].attachment = repBuffer.attachment;
+	buffers[i].name = repBuffer.name;
+	buffers[i].pitch = repBuffer.pitch;
+	buffers[i].cpp = repBuffer.cpp;
+	buffers[i].flags = repBuffer.flags;
     }
+
     UnlockDisplay(dpy);
     SyncHandle();
 
-    *handle = rep.handle;
-    *head = rep.head;
-
-    return True;
+    return buffers;
 }
 
-void DRI2DestroyDrawable(Display *dpy, XID drawable)
+void DRI2SwapBuffers(Display *dpy, XID drawable,
+		     int x, int y, int width, int height)
 {
     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
-    xDRI2DestroyDrawableReq *req;
+    xDRI2SwapBuffersReq *req;
+    xDRI2SwapBuffersReply rep;
 
     XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
 
-    XSync(dpy, GL_FALSE);
-
     LockDisplay(dpy);
-    GetReq(DRI2DestroyDrawable, req);
+    GetReq(DRI2SwapBuffers, req);
     req->reqType = info->codes->major_opcode;
-    req->dri2ReqType = X_DRI2DestroyDrawable;
+    req->dri2ReqType = X_DRI2SwapBuffers;
     req->drawable = drawable;
+    req->x = x;
+    req->y = y;
+    req->width = width;
+    req->height = height;
+
+    _XReply(dpy, (xReply *)&rep, 0, xFalse);
+
     UnlockDisplay(dpy);
     SyncHandle();
 }
 
-Bool DRI2ReemitDrawableInfo(Display *dpy, XID drawable, unsigned int *head)
+void DRI2DestroyDrawable(Display *dpy, XID drawable)
 {
     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
-    xDRI2ReemitDrawableInfoReply rep;
-    xDRI2ReemitDrawableInfoReq *req;
+    xDRI2DestroyDrawableReq *req;
 
-    XextCheckExtension (dpy, info, dri2ExtensionName, False);
+    XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
+
+    XSync(dpy, GL_FALSE);
 
     LockDisplay(dpy);
-    GetReq(DRI2ReemitDrawableInfo, req);
+    GetReq(DRI2DestroyDrawable, req);
     req->reqType = info->codes->major_opcode;
-    req->dri2ReqType = X_DRI2ReemitDrawableInfo;
+    req->dri2ReqType = X_DRI2DestroyDrawable;
     req->drawable = drawable;
-    if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
-	UnlockDisplay(dpy);
-	SyncHandle();
-	return False;
-    }
     UnlockDisplay(dpy);
     SyncHandle();
-
-    *head = rep.head;
-
-    return True;
 }
diff --git a/src/glx/x11/dri2.h b/src/glx/x11/dri2.h
index 1dfd0448b2f..e57c4ce644f 100644
--- a/src/glx/x11/dri2.h
+++ b/src/glx/x11/dri2.h
@@ -33,6 +33,14 @@
 #ifndef _DRI2_H_
 #define _DRI2_H_
 
+typedef struct {
+    unsigned int attachment;
+    unsigned int name;
+    unsigned int pitch;
+    unsigned int cpp;
+    unsigned int flags;
+} DRI2Buffer;
+
 extern Bool
 DRI2QueryExtension(Display *display, int *eventBase, int *errorBase);
 extern Bool
@@ -42,12 +50,17 @@ DRI2Connect(Display *display, int screen,
 	    char **driverName, char **busId, unsigned int *sareaHandle);
 extern Bool
 DRI2AuthConnection(Display *display, int screen, drm_magic_t magic);
-extern Bool
-DRI2CreateDrawable(Display *display, XID drawable,
-		   unsigned int *handle, unsigned int *head);
+extern void
+DRI2CreateDrawable(Display *display, XID drawable);
 extern void
 DRI2DestroyDrawable(Display *display, XID handle);
-extern Bool
-DRI2ReemitDrawableInfo(Display *dpy, XID handle, unsigned int *head);
+extern DRI2Buffer *
+DRI2GetBuffers(Display *dpy, XID drawable,
+	       int *width, int *height,
+	       unsigned int *attachments, int count,
+	       int *outCount);
+extern void
+DRI2SwapBuffers(Display *dpy, XID drawable,
+		int x, int y, int width, int height);
 
 #endif
diff --git a/src/glx/x11/dri2_glx.c b/src/glx/x11/dri2_glx.c
index 0be65bce624..c56adfa5587 100644
--- a/src/glx/x11/dri2_glx.c
+++ b/src/glx/x11/dri2_glx.c
@@ -49,6 +49,7 @@
 
 typedef struct __GLXDRIdisplayPrivateRec __GLXDRIdisplayPrivate;
 typedef struct __GLXDRIcontextPrivateRec __GLXDRIcontextPrivate;
+typedef struct __GLXDRIdrawablePrivateRec __GLXDRIdrawablePrivate;
 
 struct __GLXDRIdisplayPrivateRec {
     __GLXDRIdisplay base;
@@ -67,6 +68,13 @@ struct __GLXDRIcontextPrivateRec {
     __GLXscreenConfigs *psc;
 };
 
+struct __GLXDRIdrawablePrivateRec {
+    __GLXDRIdrawable base;
+    __DRIbuffer buffers[5];
+    int bufferCount;
+    int width, height;
+};
+
 static void dri2DestroyContext(__GLXDRIcontext *context,
 			      __GLXscreenConfigs *psc, Display *dpy)
 {
@@ -104,7 +112,6 @@ static __GLXDRIcontext *dri2CreateContext(__GLXscreenConfigs *psc,
 {
     __GLXDRIcontextPrivate *pcp, *pcp_shared;
     __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) mode;
-    const __DRIcoreExtension *core = psc->core;
     __DRIcontext *shared = NULL;
 
     if (shareList) {
@@ -118,8 +125,8 @@ static __GLXDRIcontext *dri2CreateContext(__GLXscreenConfigs *psc,
 
     pcp->psc = psc;
     pcp->driContext = 
-	(*core->createNewContext)(psc->__driScreen,
-				  config->driConfig, shared, pcp);
+	(*psc->dri2->createNewContext)(psc->__driScreen,
+				       config->driConfig, shared, pcp);
     gc->__driContext = pcp->driContext;
 
     if (pcp->driContext == NULL) {
@@ -148,45 +155,40 @@ static __GLXDRIdrawable *dri2CreateDrawable(__GLXscreenConfigs *psc,
 					    GLXDrawable drawable,
 					    const __GLcontextModes *modes)
 {
-    __GLXDRIdrawable *pdraw;
+    __GLXDRIdrawablePrivate *pdraw;
     __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) modes;
-    unsigned int handle, head;
-    const __DRIcoreExtension *core = psc->core;
 
     pdraw = Xmalloc(sizeof(*pdraw));
     if (!pdraw)
 	return NULL;
 
-    pdraw->destroyDrawable = dri2DestroyDrawable;
-    pdraw->xDrawable = xDrawable;
-    pdraw->drawable = drawable;
-    pdraw->psc = psc;
-
-    fprintf(stderr, "calling DRI2CreateDrawable, XID 0x%lx, GLX ID 0x%lx\n",
-	    xDrawable, drawable);
-
-    if (!DRI2CreateDrawable(psc->dpy, xDrawable, &handle, &head)) {
-	Xfree(pdraw);
-	return NULL;
-    }
+    pdraw->base.destroyDrawable = dri2DestroyDrawable;
+    pdraw->base.xDrawable = xDrawable;
+    pdraw->base.drawable = drawable;
+    pdraw->base.psc = psc;
 
-    fprintf(stderr, "success, head 0x%x, handle 0x%x\n", head, handle);
+    DRI2CreateDrawable(psc->dpy, xDrawable);
 
     /* Create a new drawable */
-    pdraw->driDrawable =
-	(*core->createNewDrawable)(psc->__driScreen,
-				   config->driConfig,
-				   handle,
-				   head,
-				   pdraw);
-
-    if (!pdraw->driDrawable) {
+    pdraw->base.driDrawable =
+	(*psc->dri2->createNewDrawable)(psc->__driScreen,
+					config->driConfig, pdraw);
+
+    if (!pdraw->base.driDrawable) {
 	DRI2DestroyDrawable(psc->dpy, drawable);
 	Xfree(pdraw);
 	return NULL;
     }
 
-    return pdraw;
+    return &pdraw->base;
+}
+
+static void dri2SwapBuffers(__GLXDRIdrawable *pdraw)
+{
+    __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw;
+
+    DRI2SwapBuffers(pdraw->psc->dpy, pdraw->drawable,
+		    0, 0, priv->width, priv->height);
 }
 
 static void dri2DestroyScreen(__GLXscreenConfigs *psc)
@@ -197,46 +199,39 @@ static void dri2DestroyScreen(__GLXscreenConfigs *psc)
     psc->__driScreen = NULL;
 }
 
-
-static void dri2ReemitDrawableInfo(__DRIdrawable *draw, unsigned int *tail,
-				    void *loaderPrivate)
+static __DRIbuffer *
+dri2GetBuffers(__DRIdrawable *driDrawable,
+	       int *width, int *height,
+	       unsigned int *attachments, int count,
+	       int *out_count, void *loaderPrivate)
 {
-    __GLXDRIdrawable *pdraw = loaderPrivate;
-
-    DRI2ReemitDrawableInfo(pdraw->psc->dpy, pdraw->drawable, tail);
-}
-
-static void dri2PostDamage(__DRIdrawable *draw,
-			   struct drm_clip_rect *rects,
-			   int numRects, void *loaderPrivate)
-{ 
-    XRectangle *xrects;
-    XserverRegion region;
-    __GLXDRIdrawable *glxDraw = loaderPrivate;
-    __GLXscreenConfigs *psc = glxDraw->psc;
-    Display *dpy = psc->dpy;
+    __GLXDRIdrawablePrivate *pdraw = loaderPrivate;
+    DRI2Buffer *buffers;
     int i;
 
-    xrects = malloc(sizeof(XRectangle) * numRects);
-    if (xrects == NULL)
-	return;
-
-    for (i = 0; i < numRects; i++) {
-	xrects[i].x = rects[i].x1;
-	xrects[i].y = rects[i].y1;
-	xrects[i].width = rects[i].x2 - rects[i].x1;
-	xrects[i].height = rects[i].y2 - rects[i].y1;
+    buffers = DRI2GetBuffers(pdraw->base.psc->dpy, pdraw->base.xDrawable,
+			     width, height, attachments, count, out_count);
+    pdraw->width = *width;
+    pdraw->height = *height;
+
+    /* This assumes the DRI2 buffer attachment tokens matches the
+     * __DRIbuffer tokens. */
+    for (i = 0; i < *out_count; i++) {
+	pdraw->buffers[i].attachment = buffers[i].attachment;
+	pdraw->buffers[i].name = buffers[i].name;
+	pdraw->buffers[i].pitch = buffers[i].pitch;
+	pdraw->buffers[i].cpp = buffers[i].cpp;
+	pdraw->buffers[i].flags = buffers[i].flags;
     }
-    region = XFixesCreateRegion(dpy, xrects, numRects);
-    free(xrects);
-    XDamageAdd(dpy, glxDraw->xDrawable, region);
-    XFixesDestroyRegion(dpy, region);
+
+    Xfree(buffers);
+
+    return pdraw->buffers;
 }
 
-static const __DRIloaderExtension dri2LoaderExtension = {
-    { __DRI_LOADER, __DRI_LOADER_VERSION },
-    dri2ReemitDrawableInfo,
-    dri2PostDamage
+static const __DRIdri2LoaderExtension dri2LoaderExtension = {
+    { __DRI_DRI2_LOADER, __DRI_DRI2_LOADER_VERSION },
+    dri2GetBuffers,
 };
 
 static const __DRIextension *loader_extensions[] = {
@@ -279,10 +274,12 @@ static __GLXDRIscreen *dri2CreateScreen(__GLXscreenConfigs *psc, int screen,
     for (i = 0; extensions[i]; i++) {
 	if (strcmp(extensions[i]->name, __DRI_CORE) == 0)
 	    psc->core = (__DRIcoreExtension *) extensions[i];
+	if (strcmp(extensions[i]->name, __DRI_DRI2) == 0)
+	    psc->dri2 = (__DRIdri2Extension *) extensions[i];
     }
 
-    if (psc->core == NULL) {
-	ErrorMessageF("core dri extension not found\n");
+    if (psc->core == NULL || psc->dri2 == NULL) {
+	ErrorMessageF("core dri or dri2 extension not found\n");
 	goto handle_error;
     }
 
@@ -301,7 +298,7 @@ static __GLXDRIscreen *dri2CreateScreen(__GLXscreenConfigs *psc, int screen,
     }
 
     psc->__driScreen = 
-	psc->core->createNewScreen(screen, psc->fd, sareaHandle,
+	psc->dri2->createNewScreen(screen, psc->fd,
 				   loader_extensions, &driver_configs, psc);
     if (psc->__driScreen == NULL) {
 	ErrorMessageF("failed to create dri screen\n");
@@ -316,6 +313,7 @@ static __GLXDRIscreen *dri2CreateScreen(__GLXscreenConfigs *psc, int screen,
     psp->destroyScreen = dri2DestroyScreen;
     psp->createContext = dri2CreateContext;
     psp->createDrawable = dri2CreateDrawable;
+    psp->swapBuffers = dri2SwapBuffers;
 
     Xfree(driverName);
     Xfree(busID);
diff --git a/src/glx/x11/dri_glx.c b/src/glx/x11/dri_glx.c
index 08c83a23108..39bf6c430b0 100644
--- a/src/glx/x11/dri_glx.c
+++ b/src/glx/x11/dri_glx.c
@@ -570,6 +570,11 @@ static __GLXDRIdrawable *driCreateDrawable(__GLXscreenConfigs *psc,
     return pdraw;
 }
 
+static void driSwapBuffers(__GLXDRIdrawable *pdraw)
+{
+   (*pdraw->psc->core->swapBuffers)(pdraw->driDrawable);
+}
+
 static void driDestroyScreen(__GLXscreenConfigs *psc)
 {
     /* Free the direct rendering per screen data */
@@ -641,6 +646,7 @@ static __GLXDRIscreen *driCreateScreen(__GLXscreenConfigs *psc, int screen,
     psp->destroyScreen = driDestroyScreen;
     psp->createContext = driCreateContext;
     psp->createDrawable = driCreateDrawable;
+    psp->swapBuffers = driSwapBuffers;
 
     return psp;
 }
diff --git a/src/glx/x11/glxclient.h b/src/glx/x11/glxclient.h
index e2b4218200d..412511247ef 100644
--- a/src/glx/x11/glxclient.h
+++ b/src/glx/x11/glxclient.h
@@ -123,6 +123,8 @@ struct __GLXDRIscreenRec {
 					XID drawable,
 					GLXDrawable glxDrawable,
 					const __GLcontextModes *modes);
+
+    void (*swapBuffers)(__GLXDRIdrawable *pdraw);
 };
 
 struct __GLXDRIcontextRec {
@@ -141,8 +143,8 @@ struct __GLXDRIdrawableRec {
     XID xDrawable;
     XID drawable;
     __GLXscreenConfigs *psc;
-    __DRIdrawable *driDrawable;
     GLenum textureTarget;
+    __DRIdrawable *driDrawable;
 };
 
 /*
@@ -469,6 +471,7 @@ struct __GLXscreenConfigsRec {
     const __DRIcoreExtension *core;
     const __DRIlegacyExtension *legacy;
     const __DRIswrastExtension *swrast;
+    const __DRIdri2Extension *dri2;
     __glxHashTable *drawHash;
     Display *dpy;
     int scr, fd;
diff --git a/src/glx/x11/glxcmds.c b/src/glx/x11/glxcmds.c
index 0f0cb6233a1..9197130dcaa 100644
--- a/src/glx/x11/glxcmds.c
+++ b/src/glx/x11/glxcmds.c
@@ -855,7 +855,8 @@ PUBLIC void glXSwapBuffers(Display *dpy, GLXDrawable drawable)
     __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, NULL);
 
     if (pdraw != NULL) {
-	(*pdraw->psc->core->swapBuffers)(pdraw->driDrawable);
+	glFlush();	    
+	(*pdraw->psc->driScreen->swapBuffers)(pdraw);
 	return;
     }
 #endif
diff --git a/src/mesa/drivers/dri/Makefile b/src/mesa/drivers/dri/Makefile
index 3b3fcf11df1..eef68825bc9 100644
--- a/src/mesa/drivers/dri/Makefile
+++ b/src/mesa/drivers/dri/Makefile
@@ -40,8 +40,6 @@ install: dri.pc
 	$(INSTALL) -d $(DESTDIR)$(INSTALL_INC_DIR)/GL/internal
 	$(INSTALL) -m 0644 $(TOP)/include/GL/internal/dri_interface.h \
 	  $(DESTDIR)$(INSTALL_INC_DIR)/GL/internal
-	$(INSTALL) -m 0644 $(TOP)/include/GL/internal/dri_sarea.h \
-	  $(DESTDIR)$(INSTALL_INC_DIR)/GL/internal
 	$(INSTALL) -d $(DESTDIR)$(INSTALL_LIB_DIR)/pkgconfig
 	$(INSTALL) -m 0644 dri.pc $(DESTDIR)$(INSTALL_LIB_DIR)/pkgconfig
 
diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c
index 93b9f458e41..ce540624a52 100644
--- a/src/mesa/drivers/dri/common/dri_util.c
+++ b/src/mesa/drivers/dri/common/dri_util.c
@@ -152,7 +152,6 @@ static int driUnbindContext(__DRIcontext *pcp)
     return GL_TRUE;
 }
 
-
 /**
  * This function takes both a read buffer and a draw buffer.  This is needed
  * for \c glXMakeCurrentReadSGI or GLX 1.3's \c glXMakeContextCurrent
@@ -186,10 +185,7 @@ static int driBindContext(__DRIcontext *pcp,
     ** initialize the drawable information if has not been done before.
     */
 
-    if (psp->dri2.enabled) {
-       __driParseEvents(pcp, pdp);
-       __driParseEvents(pcp, prp);
-    } else {
+    if (!psp->dri2.enabled) {
 	if (!pdp->pStamp || *pdp->pStamp != pdp->lastStamp) {
 	    DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
 	    __driUtilUpdateDrawableInfo(pdp);
@@ -279,139 +275,6 @@ __driUtilUpdateDrawableInfo(__DRIdrawablePrivate *pdp)
     DRM_SPINLOCK(&psp->pSAREA->drawable_lock, psp->drawLockID);
 }
 
-
-int
-__driParseEvents(__DRIcontextPrivate *pcp, __DRIdrawablePrivate *pdp)
-{
-    __DRIscreenPrivate *psp = pdp->driScreenPriv;
-    __DRIDrawableConfigEvent *dc, *last_dc;
-    __DRIBufferAttachEvent *ba, *last_ba;
-    unsigned int tail, mask, *p, end, total, size, changed;
-    unsigned char *data;
-    size_t rect_size;
-
-    /* Check for wraparound. */
-    if (pcp && psp->dri2.buffer->prealloc - pdp->dri2.tail > psp->dri2.buffer->size) {
-       /* If prealloc overlaps into what we just parsed, the
-	* server overwrote it and we have to reset our tail
-	* pointer. */
-	DRM_UNLOCK(psp->fd, psp->lock, pcp->hHWContext);
-	(*psp->dri2.loader->reemitDrawableInfo)(pdp, &pdp->dri2.tail,
-						pdp->loaderPrivate);
-	DRM_LIGHT_LOCK(psp->fd, psp->lock, pcp->hHWContext);
-    }
-
-    total = psp->dri2.buffer->head - pdp->dri2.tail;
-    mask = psp->dri2.buffer->size - 1;
-    end = psp->dri2.buffer->head;
-    data = psp->dri2.buffer->data;
-
-    changed = 0;
-    last_dc = NULL;
-    last_ba = NULL;
-
-    for (tail = pdp->dri2.tail; tail != end; tail += size) {
-       p = (unsigned int *) (data + (tail & mask));
-       size = DRI2_EVENT_SIZE(*p);
-       if (size > total || (tail & mask) + size > psp->dri2.buffer->size) {
-	  /* illegal data, bail out. */
-	  fprintf(stderr, "illegal event size\n");
-	  break;
-       }
-
-       switch (DRI2_EVENT_TYPE(*p)) {
-       case DRI2_EVENT_DRAWABLE_CONFIG:
-	  dc = (__DRIDrawableConfigEvent *) p;
-	  if (dc->drawable == pdp->dri2.drawable_id)
-	     last_dc = dc;
-	  break;
-
-       case DRI2_EVENT_BUFFER_ATTACH:
-	  ba = (__DRIBufferAttachEvent *) p;
-	  if (ba->drawable == pdp->dri2.drawable_id && 
-	      ba->buffer.attachment == DRI_DRAWABLE_BUFFER_FRONT_LEFT)
-	     last_ba = ba;
-	  break;
-       }
-    }
-	  
-    if (last_dc) {
-       if (pdp->w != last_dc->width || pdp->h != last_dc->height)
-	  changed = 1;
-
-       pdp->x = last_dc->x;
-       pdp->y = last_dc->y;
-       pdp->w = last_dc->width;
-       pdp->h = last_dc->height;
-
-       pdp->backX = 0;
-       pdp->backY = 0;
-       pdp->numBackClipRects = 1;
-       pdp->pBackClipRects[0].x1 = 0;
-       pdp->pBackClipRects[0].y1 = 0;
-       pdp->pBackClipRects[0].x2 = pdp->w;
-       pdp->pBackClipRects[0].y2 = pdp->h;
-
-       pdp->numClipRects = last_dc->num_rects;
-       _mesa_free(pdp->pClipRects);
-       rect_size = last_dc->num_rects * sizeof last_dc->rects[0];
-       pdp->pClipRects = _mesa_malloc(rect_size);
-       memcpy(pdp->pClipRects, last_dc->rects, rect_size);
-    }
-
-    /* We only care about the most recent drawable config. */
-    if (last_dc && changed)
-       (*psp->DriverAPI.HandleDrawableConfig)(pdp, pcp, last_dc);
-
-    /* Front buffer attachments are special, they typically mean that
-     * we're rendering to a redirected window (or a child window of a
-     * redirected window) and that it got resized.  Resizing the root
-     * window on randr events is a special case of this.  Other causes
-     * may be a window transitioning between redirected and
-     * non-redirected, or a window getting reparented between parents
-     * with different window pixmaps (eg two redirected windows).
-     * These events are special in that the X server allocates the
-     * buffer and that the buffer may be shared by other child
-     * windows.  When our window share the window pixmap with its
-     * parent, drawable config events doesn't affect the front buffer.
-     * We only care about the last such event in the buffer; in fact,
-     * older events will refer to invalid buffer objects.*/
-    if (last_ba)
-       (*psp->DriverAPI.HandleBufferAttach)(pdp, pcp, last_ba);
-
-    /* If there was a drawable config event in the buffer and it
-     * changed the size of the window, all buffer auxillary buffer
-     * attachments prior to that are invalid (as opposed to the front
-     * buffer case discussed above).  In that case we can start
-     * looking for buffer attachment after the last drawable config
-     * event.  If there is no drawable config event in this batch of
-     * events, we have to assume that the last batch might have had
-     * one and process all buffer attach events.*/
-    if (last_dc && changed)
-       tail = (unsigned char *) last_dc - data;
-    else
-       tail = pdp->dri2.tail;
-
-    for ( ; tail != end; tail += size) {
-       ba = (__DRIBufferAttachEvent *) (data + (tail & mask));
-       size = DRI2_EVENT_SIZE(ba->event_header);
-
-       if (DRI2_EVENT_TYPE(ba->event_header) != DRI2_EVENT_BUFFER_ATTACH)
-	  continue;
-       if (ba->drawable != pdp->dri2.drawable_id)
-	  continue;
-       if (last_ba == ba)
-	  continue;
-
-       (*psp->DriverAPI.HandleBufferAttach)(pdp, pcp, ba);
-       changed = 1;
-    }
-
-    pdp->dri2.tail = tail;
-
-    return changed || last_ba;
-}
-
 /*@}*/
 
 /*****************************************************************/
@@ -425,12 +288,7 @@ static void driReportDamage(__DRIdrawable *pdp,
     __DRIscreen *psp = pdp->driScreenPriv;
 
     /* Check that we actually have the new damage report method */
-    if (psp->dri2.enabled) {
-	(*psp->dri2.loader->postDamage)(pdp,
-					pClipRects,
-					numClipRects,
-					pdp->loaderPrivate);
-    } else if (psp->damage) {
+    if (psp->damage) {
 	/* Report the damage.  Currently, all our drivers draw
 	 * directly to the front buffer, so we report the damage there
 	 * rather than to the backing storein (if any).
@@ -460,9 +318,6 @@ static void driSwapBuffers(__DRIdrawable *dPriv)
     if (!dPriv->numClipRects)
         return;
 
-    if (psp->dri2.enabled)
-       __driParseEvents(NULL, dPriv);
-
     psp->DriverAPI.SwapBuffers(dPriv);
 
     driReportDamage(dPriv, dPriv->pClipRects, dPriv->numClipRects);
@@ -602,17 +457,17 @@ driCreateNewDrawable(__DRIscreen *psp, const __DRIconfig *config,
 
 
 static __DRIdrawable *
-dri2CreateNewDrawable(__DRIscreen *screen, const __DRIconfig *config,
-		      unsigned int drawable_id, unsigned int head, void *data)
+dri2CreateNewDrawable(__DRIscreen *screen,
+		      const __DRIconfig *config,
+		      void *loaderPrivate)
 {
     __DRIdrawable *pdraw;
 
-    pdraw = driCreateNewDrawable(screen, config, 0, 0, NULL, data);
+    pdraw = driCreateNewDrawable(screen, config, 0, 0, NULL, loaderPrivate);
     if (!pdraw)
     	return NULL;
 
-    pdraw->dri2.drawable_id = drawable_id;
-    pdraw->dri2.tail = head;
+    pdraw->pClipRects = _mesa_malloc(sizeof *pdraw->pBackClipRects);
     pdraw->pBackClipRects = _mesa_malloc(sizeof *pdraw->pBackClipRects);
 
     return pdraw;
@@ -723,18 +578,7 @@ static __DRIcontext *
 dri2CreateNewContext(__DRIscreen *screen, const __DRIconfig *config,
 		      __DRIcontext *shared, void *data)
 {
-    drm_context_t hwContext;
-    DRM_CAS_RESULT(ret);
-
-    /* DRI2 doesn't use kernel with context IDs, we just need an ID that's
-     * different from the kernel context ID to make drmLock() happy. */
-
-    do {
-	hwContext = screen->dri2.lock->next_id;
-	DRM_CAS(&screen->dri2.lock->next_id, hwContext, hwContext + 1, ret);
-    } while (ret);
-
-    return driCreateNewContext(screen, config, 0, shared, hwContext, data);
+    return driCreateNewContext(screen, config, 0, shared, 0, data);
 }
 
 
@@ -770,12 +614,7 @@ static void driDestroyScreen(__DRIscreen *psp)
 	if (psp->DriverAPI.DestroyScreen)
 	    (*psp->DriverAPI.DestroyScreen)(psp);
 
-	if (psp->dri2.enabled) {
-#ifdef TTM_API
-	    drmBOUnmap(psp->fd, &psp->dri2.sareaBO);
-	    drmBOUnreference(psp->fd, &psp->dri2.sareaBO);
-#endif
-	} else {
+	if (!psp->dri2.enabled) {
 	   (void)drmUnmap((drmAddress)psp->pSAREA, SAREA_MAX);
 	   (void)drmUnmap((drmAddress)psp->pFB, psp->fbSize);
 	   (void)drmCloseOnce(psp->fd);
@@ -798,8 +637,8 @@ setupLoaderExtensions(__DRIscreen *psp,
 	    psp->damage = (__DRIdamageExtension *) extensions[i];
 	if (strcmp(extensions[i]->name, __DRI_SYSTEM_TIME) == 0)
 	    psp->systemTime = (__DRIsystemTimeExtension *) extensions[i];
-	if (strcmp(extensions[i]->name, __DRI_LOADER) == 0)
-	    psp->dri2.loader = (__DRIloaderExtension *) extensions[i];
+	if (strcmp(extensions[i]->name, __DRI_DRI2_LOADER) == 0)
+	    psp->dri2.loader = (__DRIdri2LoaderExtension *) extensions[i];
     }
 }
 
@@ -895,19 +734,16 @@ driCreateNewScreen(int scrn,
     return psp;
 }
 
-
 /**
  * DRI2
  */
 static __DRIscreen *
-dri2CreateNewScreen(int scrn, int fd, unsigned int sarea_handle,
+dri2CreateNewScreen(int scrn, int fd,
 		    const __DRIextension **extensions,
 		    const __DRIconfig ***driver_configs, void *data)
 {
-#ifdef TTM_API
     static const __DRIextension *emptyExtensionList[] = { NULL };
     __DRIscreen *psp;
-    unsigned int *p;
     drmVersionPtr version;
 
     if (driDriverAPI.InitScreen2 == NULL)
@@ -932,39 +768,9 @@ dri2CreateNewScreen(int scrn, int fd, unsigned int sarea_handle,
     psp->myNum = scrn;
     psp->dri2.enabled = GL_TRUE;
 
-    if (drmBOReference(psp->fd, sarea_handle, &psp->dri2.sareaBO)) {
-	fprintf(stderr, "Failed to reference DRI2 sarea BO\n");
-	_mesa_free(psp);
-	return NULL;
-    }
-
-    if (drmBOMap(psp->fd, &psp->dri2.sareaBO,
-		 DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0, &psp->dri2.sarea)) {
-	drmBOUnreference(psp->fd, &psp->dri2.sareaBO);
-	_mesa_free(psp);
-	return NULL;
-    }
-
-    p = psp->dri2.sarea;
-    while (DRI2_SAREA_BLOCK_TYPE(*p)) {
-	switch (DRI2_SAREA_BLOCK_TYPE(*p)) {
-	case DRI2_SAREA_BLOCK_LOCK:
-	    psp->dri2.lock = (__DRILock *) p;
-	    break;
-	case DRI2_SAREA_BLOCK_EVENT_BUFFER:
-	    psp->dri2.buffer = (__DRIEventBuffer *) p;
-	    break;
-	}
-	p = DRI2_SAREA_BLOCK_NEXT(p);
-    }
-
-    psp->lock = (drmLock *) &psp->dri2.lock->lock;
-
     psp->DriverAPI = driDriverAPI;
     *driver_configs = driDriverAPI.InitScreen2(psp);
     if (*driver_configs == NULL) {
-	drmBOUnmap(psp->fd, &psp->dri2.sareaBO);
-	drmBOUnreference(psp->fd, &psp->dri2.sareaBO);
 	_mesa_free(psp);
 	return NULL;
     }
@@ -972,9 +778,6 @@ dri2CreateNewScreen(int scrn, int fd, unsigned int sarea_handle,
     psp->DriverAPI = driDriverAPI;
 
     return psp;
-#else
-    return NULL;
-#endif
 }
 
 static const __DRIextension **driGetExtensions(__DRIscreen *psp)
@@ -982,36 +785,45 @@ static const __DRIextension **driGetExtensions(__DRIscreen *psp)
     return psp->extensions;
 }
 
-/** Legacy DRI interface */
-const __DRIlegacyExtension driLegacyExtension = {
-    { __DRI_LEGACY, __DRI_LEGACY_VERSION },
-    driCreateNewScreen,
-    driCreateNewDrawable,
-    driCreateNewContext
-};
-
-/** DRI2 interface */
+/** Core interface */
 const __DRIcoreExtension driCoreExtension = {
     { __DRI_CORE, __DRI_CORE_VERSION },
-    dri2CreateNewScreen,
+    NULL,
     driDestroyScreen,
     driGetExtensions,
     driGetConfigAttrib,
     driIndexConfigAttrib,
-    dri2CreateNewDrawable,
+    NULL,
     driDestroyDrawable,
     driSwapBuffers,
-    dri2CreateNewContext,
+    NULL,
     driCopyContext,
     driDestroyContext,
     driBindContext,
     driUnbindContext
 };
 
+/** Legacy DRI interface */
+const __DRIlegacyExtension driLegacyExtension = {
+    { __DRI_LEGACY, __DRI_LEGACY_VERSION },
+    driCreateNewScreen,
+    driCreateNewDrawable,
+    driCreateNewContext,
+};
+
+/** Legacy DRI interface */
+const __DRIdri2Extension driDRI2Extension = {
+    { __DRI_DRI2, __DRI_DRI2_VERSION },
+    dri2CreateNewScreen,
+    dri2CreateNewDrawable,
+    dri2CreateNewContext,
+};
+
 /* This is the table of extensions that the loader will dlsym() for. */
 PUBLIC const __DRIextension *__driDriverExtensions[] = {
     &driCoreExtension.base,
     &driLegacyExtension.base,
+    &driDRI2Extension.base,
     NULL
 };
 
diff --git a/src/mesa/drivers/dri/common/dri_util.h b/src/mesa/drivers/dri/common/dri_util.h
index f126d084064..65931d3febc 100644
--- a/src/mesa/drivers/dri/common/dri_util.h
+++ b/src/mesa/drivers/dri/common/dri_util.h
@@ -204,16 +204,8 @@ struct __DriverAPIRec {
 
 
 
-    /* DRI2 Entry points */
+    /* DRI2 Entry point */
     const __DRIconfig **(*InitScreen2) (__DRIscreen * priv);
-    void (*HandleDrawableConfig)(__DRIdrawable *dPriv,
-				__DRIcontext *pcp,
-				__DRIDrawableConfigEvent *event);
-
-    void (*HandleBufferAttach)(__DRIdrawable *dPriv,
-			       __DRIcontext *pcp,
-			       __DRIBufferAttachEvent *ba);
-
 };
 
 extern const struct __DriverAPIRec driDriverAPI;
@@ -369,10 +361,6 @@ struct __DRIdrawableRec {
      * GLX_MESA_swap_control.
      */
     unsigned int swap_interval;
-    struct {
-	unsigned int tail;
-	unsigned int drawable_id;
-    } dri2;
 };
 
 /**
@@ -524,13 +512,7 @@ struct __DRIscreenRec {
 	/* Flag to indicate that this is a DRI2 screen.  Many of the above
 	 * fields will not be valid or initializaed in that case. */
 	int enabled;
-#ifdef TTM_API
-	drmBO sareaBO;
-#endif
-	void *sarea;
-	__DRIEventBuffer *buffer;
-	__DRILock *lock;
-	__DRIloaderExtension *loader;
+	__DRIdri2LoaderExtension *loader;
     } dri2;
 
     /* The lock actually in use, old sarea or DRI2 */
@@ -544,9 +526,6 @@ __driUtilMessage(const char *f, ...);
 extern void
 __driUtilUpdateDrawableInfo(__DRIdrawable *pdp);
 
-extern int
-__driParseEvents(__DRIcontext *psp, __DRIdrawable *pdp);
-
 extern float
 driCalculateSwapUsage( __DRIdrawable *dPriv,
 		       int64_t last_swap_ust, int64_t current_ust );
diff --git a/src/mesa/drivers/dri/i965/brw_vtbl.c b/src/mesa/drivers/dri/i965/brw_vtbl.c
index 31e96a250ac..ece01a8c9a5 100644
--- a/src/mesa/drivers/dri/i965/brw_vtbl.c
+++ b/src/mesa/drivers/dri/i965/brw_vtbl.c
@@ -75,15 +75,27 @@ static void brw_set_draw_region( struct intel_context *intel,
 				GLuint num_regions)
 {
    struct brw_context *brw = brw_context(&intel->ctx);
+   struct intel_region *old_depth_region, *old_draw_regions[MAX_DRAW_BUFFERS];
    int i;
+
    if (brw->state.depth_region != depth_region)
       brw->state.dirty.brw |= BRW_NEW_DEPTH_BUFFER;
-   for (i = 0; i < brw->state.nr_draw_regions; i++)
-       intel_region_release(&brw->state.draw_regions[i]);
-   intel_region_release(&brw->state.depth_region);
+
+   for (i = 0; i < brw->state.nr_draw_regions; i++) {
+	   old_draw_regions[i] = brw->state.draw_regions[i];
+	   brw->state.draw_regions[i] = NULL;
+   }
+   old_depth_region = brw->state.depth_region;
+   brw->state.depth_region = NULL;
+
    for (i = 0; i < num_regions; i++)
        intel_region_reference(&brw->state.draw_regions[i], draw_regions[i]);
    intel_region_reference(&brw->state.depth_region, depth_region);
+
+   for (i = 0; i < brw->state.nr_draw_regions; i++)
+       intel_region_release(&old_draw_regions[i]);
+   intel_region_release(&old_depth_region);
+
    brw->state.nr_draw_regions = num_regions;
 }
 
diff --git a/src/mesa/drivers/dri/intel/intel_buffers.c b/src/mesa/drivers/dri/intel/intel_buffers.c
index 77352e6a531..3fe67462d58 100644
--- a/src/mesa/drivers/dri/intel/intel_buffers.c
+++ b/src/mesa/drivers/dri/intel/intel_buffers.c
@@ -618,6 +618,9 @@ intel_wait_flips(struct intel_context *intel)
 			     BUFFER_FRONT_LEFT ? BUFFER_FRONT_LEFT :
 			     BUFFER_BACK_LEFT);
 
+   if (intel->intelScreen->driScrnPriv->dri2.enabled)
+      return;
+
    if (intel_fb->Base.Name == 0 && intel_rb &&
        intel_rb->pf_pending == intel_fb->pf_seq) {
       GLint pf_planes = intel_fb->pf_planes;
diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index 50c1964d878..f0ee96f18da 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -195,6 +195,142 @@ intelGetString(GLcontext * ctx, GLenum name)
    }
 }
 
+void
+intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable)
+{
+   struct intel_framebuffer *intel_fb = drawable->driverPrivate;
+   struct intel_renderbuffer *rb;
+   struct intel_region *region, *depth_region;
+   struct intel_context *intel = context->driverPrivate;
+   __DRIbuffer *buffers;
+   __DRIscreen *screen;
+   int i, count;
+   unsigned int attachments[10];
+   uint32_t name;
+   const char *region_name;
+
+   if (INTEL_DEBUG & DEBUG_DRI)
+      fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable);
+
+   screen = intel->intelScreen->driScrnPriv;
+
+   i = 0;
+   if (intel_fb->color_rb[0])
+      attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
+   if (intel_fb->color_rb[1])
+      attachments[i++] = __DRI_BUFFER_BACK_LEFT;
+   if (intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH))
+      attachments[i++] = __DRI_BUFFER_DEPTH;
+   if (intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL))
+      attachments[i++] = __DRI_BUFFER_STENCIL;
+
+   buffers = (*screen->dri2.loader->getBuffers)(drawable,
+						&drawable->w,
+						&drawable->h,
+						attachments, i,
+						&count,
+						drawable->loaderPrivate);
+
+   drawable->x = 0;
+   drawable->y = 0;
+   drawable->backX = 0;
+   drawable->backY = 0;
+   drawable->numClipRects = 1;
+   drawable->pClipRects[0].x1 = 0;
+   drawable->pClipRects[0].y1 = 0;
+   drawable->pClipRects[0].x2 = drawable->w;
+   drawable->pClipRects[0].y2 = drawable->h;
+   drawable->numBackClipRects = 1;
+   drawable->pBackClipRects[0].x1 = 0;
+   drawable->pBackClipRects[0].y1 = 0;
+   drawable->pBackClipRects[0].x2 = drawable->w;
+   drawable->pBackClipRects[0].y2 = drawable->h;
+
+   depth_region = NULL;
+   for (i = 0; i < count; i++) {
+       switch (buffers[i].attachment) {
+       case __DRI_BUFFER_FRONT_LEFT:
+	   rb = intel_fb->color_rb[0];
+	   region_name = "dri2 front buffer";
+	   break;
+
+       case __DRI_BUFFER_BACK_LEFT:
+	   rb = intel_fb->color_rb[1];
+	   region_name = "dri2 back buffer";
+	   break;
+
+       case __DRI_BUFFER_DEPTH:
+	   rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH);
+	   region_name = "dri2 depth buffer";
+	   break;
+
+       case __DRI_BUFFER_STENCIL:
+	   rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL);
+	   region_name = "dri2 stencil buffer";
+	   break;
+
+       case __DRI_BUFFER_ACCUM:
+       default:
+	   fprintf(stderr,
+		   "unhandled buffer attach event, attacment type %d\n",
+		   buffers[i].attachment);
+	   return;
+       }
+
+       if (rb->region) {
+	  intel_bo_flink(rb->region->buffer, &name);
+	  if (name == buffers[i].name)
+	     continue;
+       }
+
+       if (INTEL_DEBUG & DEBUG_DRI)
+	  fprintf(stderr,
+		  "attaching buffer %d, at %d, cpp %d, pitch %d\n",
+		  buffers[i].name, buffers[i].attachment,
+		  buffers[i].cpp, buffers[i].pitch);
+       
+       if (buffers[i].attachment == __DRI_BUFFER_STENCIL && depth_region) {
+	  if (INTEL_DEBUG & DEBUG_DRI)
+	     fprintf(stderr, "(reusing depth buffer as stencil)\n");
+          region = depth_region;
+       }
+       else
+          region = intel_region_alloc_for_handle(intel, buffers[i].cpp,
+						 buffers[i].pitch / buffers[i].cpp,
+						 drawable->h,
+						 buffers[i].name,
+						 region_name);
+
+       if (buffers[i].attachment == __DRI_BUFFER_DEPTH)
+	  depth_region = region;
+
+       intel_renderbuffer_set_region(rb, region);
+       intel_region_release(&region);
+   }
+
+   driUpdateFramebufferSize(&intel->ctx, drawable);
+}
+
+static void
+intel_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
+{
+    struct intel_context *intel = intel_context(ctx);
+    __DRIcontext *driContext = intel->driContext;
+
+    if (!driContext->driScreenPriv->dri2.enabled)
+	return;
+
+    intel_update_renderbuffers(driContext, driContext->driDrawablePriv);
+    if (driContext->driDrawablePriv != driContext->driReadablePriv)
+	intel_update_renderbuffers(driContext, driContext->driReadablePriv);
+
+    ctx->Driver.Viewport = NULL;
+    intel->driDrawable = driContext->driDrawablePriv;
+    intelWindowMoved(intel);
+    intel_draw_buffer(ctx, intel->ctx.DrawBuffer);
+    ctx->Driver.Viewport = intel_viewport;
+}
+
 /**
  * Extension strings exported by the intel driver.
  *
@@ -541,6 +677,7 @@ intelInitDriverFunctions(struct dd_function_table *functions)
    functions->Finish = intelFinish;
    functions->GetString = intelGetString;
    functions->UpdateState = intelInvalidateState;
+   functions->Viewport = intel_viewport;
 
    functions->CopyColorTable = _swrast_CopyColorTable;
    functions->CopyColorSubTable = _swrast_CopyColorSubTable;
@@ -582,6 +719,7 @@ intelInitContext(struct intel_context *intel,
    intel->intelScreen = intelScreen;
    intel->driScreen = sPriv;
    intel->sarea = saPriv;
+   intel->driContext = driContextPriv;
 
    /* Dri stuff */
    intel->hHWContext = driContextPriv->hHWContext;
@@ -784,6 +922,9 @@ intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
 	 (struct intel_framebuffer *) driDrawPriv->driverPrivate;
       GLframebuffer *readFb = (GLframebuffer *) driReadPriv->driverPrivate;
 
+    intel_update_renderbuffers(driContextPriv, driDrawPriv);
+    if (driDrawPriv != driReadPriv)
+	intel_update_renderbuffers(driContextPriv, driReadPriv);
 
       /* XXX FBO temporary fix-ups! */
       /* if the renderbuffers don't have regions, init them from the context */
@@ -989,18 +1130,12 @@ void LOCK_HARDWARE( struct intel_context *intel )
 	intel_fb->vbl_waited = vbl.reply.sequence;
     }
 
-    DRM_CAS(intel->driHwLock, intel->hHWContext,
-        (DRM_LOCK_HELD|intel->hHWContext), __ret);
+    if (!sPriv->dri2.enabled) {
+	DRM_CAS(intel->driHwLock, intel->hHWContext,
+		(DRM_LOCK_HELD|intel->hHWContext), __ret);
 
-    if (sPriv->dri2.enabled) {
 	if (__ret)
-	    drmGetLock(intel->driFd, intel->hHWContext, 0);
-	if (__driParseEvents(dPriv->driContextPriv, dPriv)) {
-	    intelWindowMoved(intel);
-	    intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer);
-	}
-    } else if (__ret) {
-        intelContendedLock( intel, 0 );
+	    intelContendedLock( intel, 0 );
     }
 
 
@@ -1013,10 +1148,13 @@ void LOCK_HARDWARE( struct intel_context *intel )
  */
 void UNLOCK_HARDWARE( struct intel_context *intel )
 {
+    __DRIscreen *sPriv = intel->driScreen;
+
    intel->vtbl.note_unlock( intel );
    intel->locked = 0;
 
-   DRM_UNLOCK(intel->driFd, intel->driHwLock, intel->hHWContext);
+   if (!sPriv->dri2.enabled)
+      DRM_UNLOCK(intel->driFd, intel->driHwLock, intel->hHWContext);
 
    _glthread_UNLOCK_MUTEX(lockMutex);
 
diff --git a/src/mesa/drivers/dri/intel/intel_context.h b/src/mesa/drivers/dri/intel/intel_context.h
index f9a373cf748..7381eec1913 100644
--- a/src/mesa/drivers/dri/intel/intel_context.h
+++ b/src/mesa/drivers/dri/intel/intel_context.h
@@ -257,6 +257,7 @@ struct intel_context
    drmLock *driHwLock;
    int driFd;
 
+   __DRIcontextPrivate *driContext;
    __DRIdrawablePrivate *driDrawable;
    __DRIdrawablePrivate *driReadDrawable;
    __DRIscreenPrivate *driScreen;
diff --git a/src/mesa/drivers/dri/intel/intel_regions.c b/src/mesa/drivers/dri/intel/intel_regions.c
index ddfdce38356..c86c1034a9f 100644
--- a/src/mesa/drivers/dri/intel/intel_regions.c
+++ b/src/mesa/drivers/dri/intel/intel_regions.c
@@ -145,12 +145,12 @@ intel_region_alloc(struct intel_context *intel,
 struct intel_region *
 intel_region_alloc_for_handle(struct intel_context *intel,
 			      GLuint cpp, GLuint pitch, GLuint height,
-			      GLuint handle)
+			      GLuint handle, const char *name)
 {
    struct intel_region *region;
    dri_bo *buffer;
 
-   buffer = intel_bo_gem_create_from_name(intel->bufmgr, "dri2 region", handle);
+   buffer = intel_bo_gem_create_from_name(intel->bufmgr, name, handle);
 
    region = intel_region_alloc_internal(intel, cpp, pitch, height, buffer);
    if (region == NULL)
@@ -164,6 +164,9 @@ intel_region_alloc_for_handle(struct intel_context *intel,
 void
 intel_region_reference(struct intel_region **dst, struct intel_region *src)
 {
+   if (src)
+      DBG("%s %d\n", __FUNCTION__, src->refcount);
+
    assert(*dst == NULL);
    if (src) {
       src->refcount++;
diff --git a/src/mesa/drivers/dri/intel/intel_regions.h b/src/mesa/drivers/dri/intel/intel_regions.h
index e5f19fbb452..1285f250a77 100644
--- a/src/mesa/drivers/dri/intel/intel_regions.h
+++ b/src/mesa/drivers/dri/intel/intel_regions.h
@@ -76,7 +76,7 @@ struct intel_region *intel_region_alloc(struct intel_context *intel,
 struct intel_region *
 intel_region_alloc_for_handle(struct intel_context *intel,
 			      GLuint cpp, GLuint pitch, GLuint height,
-			      unsigned int handle);
+			      unsigned int handle, const char *name);
 
 void intel_region_reference(struct intel_region **dst,
                             struct intel_region *src);
diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c
index 9ed89906d5c..c193830f05f 100644
--- a/src/mesa/drivers/dri/intel/intel_screen.c
+++ b/src/mesa/drivers/dri/intel/intel_screen.c
@@ -211,102 +211,6 @@ intelUpdateScreenFromSAREA(intelScreenPrivate * intelScreen,
       intelPrintSAREA(sarea);
 }
 
-
-/**
- * DRI2 entrypoint
- */
-static void
-intelHandleDrawableConfig(__DRIdrawablePrivate *dPriv,
-			  __DRIcontextPrivate *pcp,
-			  __DRIDrawableConfigEvent *event)
-{
-   struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
-   struct intel_region *region = NULL;
-   struct intel_renderbuffer *rb, *depth_rb, *stencil_rb;
-   struct intel_context *intel = pcp->driverPrivate;
-   int cpp, pitch;
-
-   cpp = intel->ctx.Visual.rgbBits / 8;
-   pitch = ((cpp * dPriv->w + 63) & ~63) / cpp;
-
-   rb = intel_fb->color_rb[1];
-   if (rb) {
-      region = intel_region_alloc(intel, cpp, pitch, dPriv->h);
-      intel_renderbuffer_set_region(rb, region);
-   }
-
-   rb = intel_fb->color_rb[2];
-   if (rb) {
-      region = intel_region_alloc(intel, cpp, pitch, dPriv->h);
-      intel_renderbuffer_set_region(rb, region);
-   }
-
-   depth_rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH);
-   stencil_rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL);
-   if (depth_rb || stencil_rb)
-      region = intel_region_alloc(intel, cpp, pitch, dPriv->h);
-   if (depth_rb)
-      intel_renderbuffer_set_region(depth_rb, region);
-   if (stencil_rb)
-      intel_renderbuffer_set_region(stencil_rb, region);
-
-   /* FIXME: Tell the X server about the regions we just allocated and
-    * attached. */
-}
-
-/**
- * DRI2 entrypoint
- */
-static void
-intelHandleBufferAttach(__DRIdrawablePrivate *dPriv,
-			__DRIcontextPrivate *pcp,
-			__DRIBufferAttachEvent *ba)
-{
-   struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
-   struct intel_renderbuffer *rb;
-   struct intel_region *region;
-   struct intel_context *intel = pcp->driverPrivate;
-
-   switch (ba->buffer.attachment) {
-   case DRI_DRAWABLE_BUFFER_FRONT_LEFT:
-      rb = intel_fb->color_rb[0];
-      break;
-
-   case DRI_DRAWABLE_BUFFER_BACK_LEFT:
-      rb = intel_fb->color_rb[0];
-      break;
-
-   case DRI_DRAWABLE_BUFFER_DEPTH:
-     rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH);
-     break;
-
-   case DRI_DRAWABLE_BUFFER_STENCIL:
-     rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL);
-     break;
-
-   case DRI_DRAWABLE_BUFFER_ACCUM:
-   default:
-      fprintf(stderr, "unhandled buffer attach event, attacment type %d\n",
-	      ba->buffer.attachment);
-      return;
-   }
-
-#if 0
-   /* FIXME: Add this so we can filter out when the X server sends us
-    * attachment events for the buffers we just allocated.  Need to
-    * get the BO handle for a render buffer. */
-   if (intel_renderbuffer_get_region_handle(rb) == ba->buffer.handle)
-      return;
-#endif
-
-   region = intel_region_alloc_for_handle(intel, ba->buffer.cpp,
-					  ba->buffer.pitch / ba->buffer.cpp,
-					  dPriv->h,
-					  ba->buffer.handle);
-
-   intel_renderbuffer_set_region(rb, region);
-}
-
 static const __DRItexOffsetExtension intelTexOffsetExtension = {
    { __DRI_TEX_OFFSET },
    intelSetTexOffset,
@@ -750,26 +654,12 @@ __DRIconfig **intelInitScreen2(__DRIscreenPrivate *psp)
 
    intelScreen->drmMinor = psp->drm_version.minor;
 
-   /* Determine chipset ID? */
+   /* Determine chipset ID */
    if (!intel_get_param(psp, I915_PARAM_CHIPSET_ID,
 			&intelScreen->deviceID))
       return GL_FALSE;
 
-   /* Determine if IRQs are active? */
-   if (!intel_get_param(psp, I915_PARAM_IRQ_ACTIVE,
-			&intelScreen->irq_active))
-      return GL_FALSE;
-
-   /* Determine if batchbuffers are allowed */
-   if (!intel_get_param(psp, I915_PARAM_ALLOW_BATCHBUFFER,
-			&intelScreen->allow_batchbuffer))
-      return GL_FALSE;
-
-   if (!intelScreen->allow_batchbuffer) {
-      fprintf(stderr, "batch buffer not allowed\n");
-      return GL_FALSE;
-   }
-
+   intelScreen->irq_active = 1;
    psp->extensions = intelScreenExtensions;
 
    return driConcatConfigs(intelFillInModes(psp, 16, 16, 0, 1),
@@ -792,6 +682,4 @@ const struct __DriverAPIRec driDriverAPI = {
    .CopySubBuffer	 = intelCopySubBuffer,
 
    .InitScreen2		 = intelInitScreen2,
-   .HandleDrawableConfig = intelHandleDrawableConfig,
-   .HandleBufferAttach	 = intelHandleBufferAttach,
 };
diff --git a/src/mesa/drivers/dri/intel/intel_tex_image.c b/src/mesa/drivers/dri/intel/intel_tex_image.c
index c11687a2cf6..187fcc7dcb8 100644
--- a/src/mesa/drivers/dri/intel/intel_tex_image.c
+++ b/src/mesa/drivers/dri/intel/intel_tex_image.c
@@ -731,7 +731,7 @@ intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
    if (!intelObj)
       return;
 
-   __driParseEvents(pDRICtx, dPriv);
+   intel_update_renderbuffers(pDRICtx, dPriv);
 
    rb = intel_fb->color_rb[0];
    type = GL_BGRA;