Add DRI2 module.

configure.ac

@@ -368,6 +368,7 @@ AM_CONDITIONAL(PPC_VIDEO, [test "x$PPC_VIDEO" = xyes])
 AM_CONDITIONAL(SPARC64_VIDEO, [test "x$SPARC64_VIDEO" = xyes])
 
 DRI=no
+DRI2=no
 KDRIVE_HW=no
 dnl it would be nice to autodetect these *CONS_SUPPORTs
 case $host_os in
@@ -380,6 +381,7 @@ case $host_os in
 	AC_DEFINE(PCVT_SUPPORT, 1, [System has PCVT console])
 	AC_DEFINE(SYSCONS_SUPPORT, 1, [System has syscons console])
 	DRI=yes
+	DRI2=yes
 	;;
   *netbsd*)
 	AC_DEFINE(CSRG_BASED, 1, [System is BSD-like])
@@ -387,6 +389,7 @@ case $host_os in
 	AC_DEFINE(PCVT_SUPPORT, 1, [System has PCVT console])
 	AC_DEFINE(WSCONS_SUPPORT, 1, [System has wscons console])
 	DRI=yes
+	DRI2=yes
 	;;
   *openbsd*)
 	AC_DEFINE(CSRG_BASED, 1, [System is BSD-like])
@@ -395,6 +398,7 @@ case $host_os in
 	;;
   *linux*)
 	DRI=yes
+	DRI2=yes
 	KDRIVE_HW=yes
 	;;
   *solaris*)
@@ -535,6 +539,7 @@ AC_ARG_ENABLE(xdmcp,          AS_HELP_STRING([--disable-xdmcp], [Build XDMCP ext
 AC_ARG_ENABLE(xdm-auth-1,     AS_HELP_STRING([--disable-xdm-auth-1], [Build XDM-Auth-1 extension (default: auto)]), [XDMAUTH=$enableval], [XDMAUTH=auto])
 AC_ARG_ENABLE(glx,            AS_HELP_STRING([--disable-glx], [Build GLX extension (default: enabled)]), [GLX=$enableval], [GLX=yes])
 AC_ARG_ENABLE(dri,            AS_HELP_STRING([--enable-dri], [Build DRI extension (default: auto)]), [DRI=$enableval])
+AC_ARG_ENABLE(dri2,           AS_HELP_STRING([--enable-dri2], [Build DRI2 extension (default: auto)]), [DRI2=$enableval])
 AC_ARG_ENABLE(xinerama,	      AS_HELP_STRING([--disable-xinerama], [Build Xinerama extension (default: enabled)]), [XINERAMA=$enableval], [XINERAMA=yes])
 AC_ARG_ENABLE(xf86vidmode,    AS_HELP_STRING([--disable-xf86vidmode], [Build XF86VidMode extension (default: auto)]), [XF86VIDMODE=$enableval], [XF86VIDMODE=auto])
 AC_ARG_ENABLE(xf86misc,       AS_HELP_STRING([--disable-xf86misc], [Build XF86Misc extension (default: auto)]), [XF86MISC=$enableval], [XF86MISC=auto])
@@ -857,6 +862,14 @@ if test "x$DRI" = xyes; then
 	AC_SUBST(GL_CFLAGS)
 fi
 
+AM_CONDITIONAL(DRI2, test "x$DRI2" = xyes)
+if test "x$DRI2" = xyes; then
+	# FIXME: Bump the versions once we have releases of these.
+	AC_DEFINE(DRI2, 1, [Build DRI2 extension])
+	PKG_CHECK_MODULES([DRIPROTO], [xf86driproto >= 2.0.3])
+	PKG_CHECK_MODULES([LIBDRM], [libdrm >= 2.3.1])
+fi
+
 AM_CONDITIONAL(XINERAMA, [test "x$XINERAMA" = xyes])
 if test "x$XINERAMA" = xyes; then
 	AC_DEFINE(XINERAMA, 1, [Support Xinerama extension])
@@ -2129,6 +2142,7 @@ hw/xfree86/doc/devel/Makefile
 hw/xfree86/doc/man/Makefile
 hw/xfree86/doc/sgml/Makefile
 hw/xfree86/dri/Makefile
+hw/xfree86/dri2/Makefile
 hw/xfree86/dummylib/Makefile
 hw/xfree86/exa/Makefile
 hw/xfree86/fbdevhw/Makefile

hw/xfree86/Makefile.am

@@ -4,6 +4,10 @@ if DRI
 DRI_SUBDIR = dri
 endif
 
+if DRI2
+DRI2_SUBDIR = dri2
+endif
+
 if XF86UTILS
 XF86UTILS_SUBDIR = utils
 endif
@@ -21,11 +25,11 @@ DOC_SUBDIR = doc
 SUBDIRS = common ddc dummylib i2c x86emu int10 fbdevhw os-support parser rac \
 	  ramdac shadowfb vbe vgahw xaa $(MFB_SUBDIR) $(CFB_SUBDIR) \
 	  xf8_16bpp loader dixmods exa modes \
-	  $(DRI_SUBDIR) $(XF86UTILS_SUBDIR) $(DOC_SUBDIR)
+	  $(DRI_SUBDIR) $(DRI2_SUBDIR) $(XF86UTILS_SUBDIR) $(DOC_SUBDIR)
 
 DIST_SUBDIRS = common ddc dummylib i2c x86emu int10 fbdevhw os-support \
                parser rac ramdac shadowfb vbe vgahw xaa xf1bpp xf4bpp \
-               xf8_16bpp xf8_32bpp loader dixmods dri exa modes \
+               xf8_16bpp xf8_32bpp loader dixmods dri dri2 exa modes \
 	       utils doc
 
 bin_PROGRAMS = Xorg

hw/xfree86/dri2/Makefile.am

@@ -0,0 +1,15 @@
+libdri2_la_LTLIBRARIES = libdri2.la
+libdri2_la_CFLAGS = \
+	-DHAVE_XORG_CONFIG_H \
+	-I@MESA_SOURCE@/include \
+	@DIX_CFLAGS@ @DRIPROTO_CFLAGS@ @LIBDRM_CFLAGS@ \
+	-I$(top_srcdir)/hw/xfree86/common \
+	-I$(top_srcdir)/hw/xfree86/os-support/bus
+
+libdri2_la_LDFLAGS = -module -avoid-version @LIBDRM_LIBS@
+libdri2_ladir = $(moduledir)/extensions
+libdri2_la_SOURCES = \
+	dri2.c \
+	dri2.h
+
+sdk_HEADERS = dri2.h

hw/xfree86/dri2/dri2.c

@@ -0,0 +1,448 @@
+/*
+ * Copyright © 2007 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Soft-
+ * ware"), to deal in the Software without restriction, including without
+ * limitation the rights to use, copy, modify, merge, publish, distribute,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, provided that the above copyright
+ * notice(s) and this permission notice appear in all copies of the Soft-
+ * ware and that both the above copyright notice(s) and this permission
+ * notice appear in supporting documentation.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
+ * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
+ * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
+ * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
+ * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
+ * MANCE OF THIS SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or
+ * other dealings in this Software without prior written authorization of
+ * the copyright holder.
+ *
+ * Authors:
+ *   Kristian Høgsberg (krh@redhat.com)
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <xf86drm.h>
+#include "xf86Module.h"
+#include "scrnintstr.h"
+#include "windowstr.h"
+#include "dri2.h"
+#include <GL/internal/dri_sarea.h>
+
+#include "xf86.h"
+
+static DevPrivateKey dri2ScreenPrivateKey = &dri2ScreenPrivateKey;
+static DevPrivateKey dri2WindowPrivateKey = &dri2WindowPrivateKey;
+static DevPrivateKey dri2PixmapPrivateKey = &dri2PixmapPrivateKey;
+
+typedef struct _DRI2DrawablePriv {
+    drm_drawable_t		 drawable;
+    unsigned int		 handle;
+} DRI2DrawablePrivRec, *DRI2DrawablePrivPtr;
+
+typedef struct _DRI2Screen {
+    int				 fd;
+    drmBO			 sareaBO;
+    void			*sarea;
+    unsigned int		 sareaSize;
+    const char			*driverName;
+    int				 ddxVersionMajor;
+    int				 ddxVersionMinor;
+    int				 ddxVersionPatch;
+
+    __DRIEventBuffer		*buffer;
+    int				 locked;
+
+    DRI2GetPixmapHandleProcPtr   getPixmapHandle;
+    DRI2BeginClipNotifyProcPtr	 beginClipNotify;
+    DRI2EndClipNotifyProcPtr	 endClipNotify;
+
+    ClipNotifyProcPtr		 ClipNotify;
+    HandleExposuresProcPtr	 HandleExposures;
+} DRI2ScreenRec, *DRI2ScreenPtr;
+
+static DRI2ScreenPtr
+DRI2GetScreen(ScreenPtr pScreen)
+{
+    return dixLookupPrivate(&pScreen->devPrivates, dri2ScreenPrivateKey);
+}
+
+static void *
+DRI2ScreenAllocEvent(DRI2ScreenPtr ds, size_t size)
+{
+    unsigned int *pad, mask = ds->buffer->size - 1;
+    size_t pad_size;
+    void *p;
+    
+    if ((ds->buffer->head & mask) + size > ds->buffer->size) {
+	/* The requested event size would wrap the buffer, so pad to
+	 * the end and allocate the event from the start. */
+	pad_size = ds->buffer->size - (ds->buffer->head & mask);
+	pad = (unsigned int *)
+	    (ds->buffer->data + (ds->buffer->prealloc & mask));
+	*pad = DRI2_EVENT_HEADER(DRI2_EVENT_PAD, pad_size);
+	ds->buffer->prealloc += pad_size;
+    }
+
+    p = ds->buffer->data + (ds->buffer->prealloc & mask);
+    ds->buffer->prealloc += size;
+
+    return p;
+}
+
+static void
+DRI2ScreenCommitEvents(DRI2ScreenPtr ds)
+{
+    ds->buffer->head = ds->buffer->prealloc;
+}
+
+static void
+DRI2PostDrawableConfig(DrawablePtr pDraw)
+{
+    ScreenPtr			 pScreen = pDraw->pScreen;
+    DRI2ScreenPtr		 ds = DRI2GetScreen(pScreen);
+    DRI2DrawablePrivPtr		 pPriv;
+    WindowPtr			 pWin;
+    PixmapPtr			 pPixmap;
+    BoxPtr			 pBox;
+    BoxRec			 pixmapBox;
+    int				 nBox;
+    int				 i;
+    __DRIDrawableConfigEvent	*e;
+    size_t			 size;
+
+    if (pDraw->type == DRAWABLE_WINDOW) {
+	pWin = (WindowPtr) pDraw;
+	pPriv = dixLookupPrivate(&pWin->devPrivates, dri2WindowPrivateKey);
+
+	nBox = REGION_NUM_RECTS(&pWin->clipList);
+	pBox = REGION_RECTS(&pWin->clipList);
+
+	pPixmap = pScreen->GetWindowPixmap(pWin);
+    } else {
+	pPixmap = (PixmapPtr) pDraw;
+	pPriv = dixLookupPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey);
+
+	pixmapBox.x1 = 0;
+	pixmapBox.y1 = 0;
+	pixmapBox.x2 = pDraw->width;
+	pixmapBox.y2 = pDraw->height;
+	nBox = 1;
+	pBox = &pixmapBox;
+    }
+
+    if (!pPriv)
+	return;
+
+    size = sizeof *e + nBox * sizeof e->rects[0];
+
+    e = DRI2ScreenAllocEvent(ds, size);
+    e->event_header = DRI2_EVENT_HEADER(DRI2_EVENT_DRAWABLE_CONFIG, size);
+    e->drawable = pPriv->drawable;
+    e->x = pDraw->x - pPixmap->screen_x;
+    e->y = pDraw->y - pPixmap->screen_y;
+    e->width = pDraw->width;
+    e->height = pDraw->height;
+
+    e->num_rects = nBox;
+    for (i = 0; i < nBox; i++) {
+	e->rects[i].x1 = pBox->x1 - pPixmap->screen_x;
+	e->rects[i].y1 = pBox->y1 - pPixmap->screen_y;
+	e->rects[i].x2 = pBox->x2 - pPixmap->screen_x;
+	e->rects[i].y2 = pBox->y2 - pPixmap->screen_y;
+	pBox++;
+    }
+}
+
+static void
+DRI2PostBufferAttach(DrawablePtr pDraw)
+{
+    ScreenPtr			 pScreen = pDraw->pScreen;
+    DRI2ScreenPtr		 ds = DRI2GetScreen(pScreen);
+    DRI2DrawablePrivPtr		 pPriv;
+    WindowPtr			 pWin;
+    PixmapPtr			 pPixmap;
+    __DRIBufferAttachEvent	*e;
+    size_t			 size;
+    unsigned int		 handle, flags;
+
+    if (pDraw->type == DRAWABLE_WINDOW) {
+	pWin = (WindowPtr) pDraw;
+	pPixmap = pScreen->GetWindowPixmap(pWin);
+	pPriv = dixLookupPrivate(&pWin->devPrivates, dri2WindowPrivateKey);
+    } else {
+	pPixmap = (PixmapPtr) pDraw;
+	pPriv = dixLookupPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey);
+    }
+
+    if (!pPriv)
+	return;
+
+    size = sizeof *e;
+
+    handle = ds->getPixmapHandle(pPixmap, &flags);
+    if (handle == 0 || handle == pPriv->handle)
+	return;
+
+    e = DRI2ScreenAllocEvent(ds, size);
+    e->event_header = DRI2_EVENT_HEADER(DRI2_EVENT_BUFFER_ATTACH, size);
+    e->drawable = pPriv->drawable;
+    e->buffer.attachment = DRI_DRAWABLE_BUFFER_FRONT_LEFT;
+    e->buffer.handle = handle;
+    e->buffer.pitch = pPixmap->devKind;
+    e->buffer.cpp = pPixmap->drawable.bitsPerPixel / 8;
+    e->buffer.flags = flags;
+
+    pPriv->handle = handle;
+}
+
+static void
+DRI2ClipNotify(WindowPtr pWin, int dx, int dy)
+{
+    ScreenPtr		pScreen = pWin->drawable.pScreen;
+    DRI2ScreenPtr	ds = DRI2GetScreen(pScreen);
+
+    if (!ds->locked) {
+        ds->beginClipNotify(pScreen);
+	ds->locked = 1;
+    }
+
+    if (ds->ClipNotify) {
+	pScreen->ClipNotify = ds->ClipNotify;
+	pScreen->ClipNotify(pWin, dx, dy);
+	pScreen->ClipNotify = DRI2ClipNotify;
+    }
+
+    DRI2PostDrawableConfig(&pWin->drawable);
+    DRI2PostBufferAttach(&pWin->drawable);
+}
+
+static void
+DRI2HandleExposures(WindowPtr pWin)
+{
+    ScreenPtr		pScreen = pWin->drawable.pScreen;
+    DRI2ScreenPtr	ds = DRI2GetScreen(pScreen);
+
+    if (ds->HandleExposures) {
+	pScreen->HandleExposures = ds->HandleExposures;
+	pScreen->HandleExposures(pWin);
+	pScreen->HandleExposures = DRI2HandleExposures;
+    }
+
+    DRI2ScreenCommitEvents(ds);
+
+    if (ds->locked) {
+        ds->endClipNotify(pScreen);
+	ds->locked = 0;
+    }
+}
+
+void
+DRI2CloseScreen(ScreenPtr pScreen)
+{
+    DRI2ScreenPtr	ds = DRI2GetScreen(pScreen);
+
+    pScreen->ClipNotify		= ds->ClipNotify;
+    pScreen->HandleExposures	= ds->HandleExposures;
+
+    drmBOUnmap(ds->fd, &ds->sareaBO);
+    drmBOUnreference(ds->fd, &ds->sareaBO);
+
+    xfree(ds);
+    dixSetPrivate(&pScreen->devPrivates, dri2ScreenPrivateKey, NULL);
+}
+
+Bool
+DRI2CreateDrawable(ScreenPtr pScreen,
+		   DrawablePtr pDraw, drm_drawable_t *pDrmDrawable)
+{
+    DRI2ScreenPtr	ds = DRI2GetScreen(pScreen);
+    WindowPtr		pWin;
+    PixmapPtr		pPixmap;
+    DRI2DrawablePrivPtr pPriv;
+    DevPrivateKey	key;
+    PrivateRec		**devPrivates;
+
+    if (pDraw->type == DRAWABLE_WINDOW) {
+	pWin = (WindowPtr) pDraw;
+	devPrivates = &pWin->devPrivates;
+	key = dri2WindowPrivateKey;
+    } else {
+	pPixmap = (PixmapPtr) pDraw;
+	devPrivates = &pPixmap->devPrivates;
+	key = dri2PixmapPrivateKey;
+    }
+
+    pPriv = dixLookupPrivate(devPrivates, key);
+    if (pPriv == NULL) {
+	pPriv = xalloc(sizeof *pPriv);
+	if (drmCreateDrawable(ds->fd, &pPriv->drawable))
+	    return FALSE;
+
+	dixSetPrivate(devPrivates, key, pPriv);
+    }
+
+    *pDrmDrawable = pPriv->drawable;
+
+    DRI2PostDrawableConfig(pDraw);
+    DRI2PostBufferAttach(pDraw);
+    DRI2ScreenCommitEvents(ds);
+
+    return TRUE;
+}
+
+void
+DRI2DestroyDrawable(ScreenPtr pScreen, DrawablePtr pDraw)
+{
+    DRI2ScreenPtr ds = DRI2GetScreen(pScreen);
+    PixmapPtr pPixmap;
+    WindowPtr pWin;
+    DRI2DrawablePrivPtr pPriv;
+
+    if (pDraw->type == DRAWABLE_WINDOW) {
+	pWin = (WindowPtr) pDraw;
+	pPriv = dixLookupPrivate(&pWin->devPrivates, dri2WindowPrivateKey);
+	dixSetPrivate(&pWin->devPrivates, dri2WindowPrivateKey, NULL);
+    } else {
+	pPixmap = (PixmapPtr) pDraw;
+	pPriv = dixLookupPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey);
+	dixSetPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey, NULL);
+    }
+
+    if (pPriv == NULL)
+	return;
+    
+    drmDestroyDrawable(ds->fd, pPriv->drawable);
+    xfree(pPriv);
+}
+
+Bool
+DRI2Connect(ScreenPtr pScreen, int *fd, const char **driverName,
+	    int *ddxMajor, int *ddxMinor, int *ddxPatch,
+	    unsigned int *sareaHandle)
+{
+    DRI2ScreenPtr ds = DRI2GetScreen(pScreen);
+
+    if (ds == NULL)
+	return FALSE;
+
+    *fd = ds->fd;
+    *driverName = ds->driverName;
+    *ddxMajor = ds->ddxVersionMajor;
+    *ddxMinor = ds->ddxVersionMinor;
+    *ddxPatch = ds->ddxVersionPatch;
+    *sareaHandle = ds->sareaBO.handle;
+
+    return TRUE;
+}
+
+static void *
+DRI2SetupSAREA(ScreenPtr pScreen, size_t driverSareaSize)
+{
+    DRI2ScreenPtr ds = DRI2GetScreen(pScreen);
+    unsigned long mask;
+    const size_t event_buffer_size = 32 * 1024;
+
+    ds->sareaSize = 
+	sizeof(*ds->buffer) + event_buffer_size +
+	driverSareaSize +
+	sizeof (unsigned int);
+
+    mask = DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE | DRM_BO_FLAG_MAPPABLE |
+	DRM_BO_FLAG_MEM_LOCAL | DRM_BO_FLAG_SHAREABLE;
+
+    if (drmBOCreate(ds->fd, ds->sareaSize, 1, NULL, mask, 0, &ds->sareaBO))
+	return NULL;
+
+    if (drmBOMap(ds->fd, &ds->sareaBO,
+		 DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0, &ds->sarea)) {
+	drmBOUnreference(ds->fd, &ds->sareaBO);
+	return NULL;
+    }
+
+    xf86DrvMsg(pScreen->myNum, X_INFO,
+	       "[DRI2] Allocated %d byte SAREA, BO handle 0x%08x\n",
+	       ds->sareaSize, ds->sareaBO.handle);
+    memset(ds->sarea, 0, ds->sareaSize);
+
+    ds->buffer = ds->sarea;
+    ds->buffer->block_header =
+	DRI2_SAREA_BLOCK_HEADER(DRI2_SAREA_BLOCK_EVENT_BUFFER,
+				sizeof *ds->buffer + event_buffer_size);
+    ds->buffer->size = event_buffer_size;
+
+    return DRI2_SAREA_BLOCK_NEXT(ds->buffer);
+}
+
+void *
+DRI2ScreenInit(ScreenPtr pScreen, DRI2InfoPtr info)
+{
+    DRI2ScreenPtr ds;
+    void *p;
+
+    ds = xalloc(sizeof *ds);
+    if (!ds)
+	return NULL;
+
+    ds->fd = info->fd;
+    ds->driverName		= info->driverName;
+    ds->ddxVersionMajor		= info->ddxVersionMajor;
+    ds->ddxVersionMinor		= info->ddxVersionMinor;
+    ds->ddxVersionPatch		= info->ddxVersionPatch;
+
+    ds->getPixmapHandle		= info->getPixmapHandle;
+    ds->beginClipNotify		= info->beginClipNotify;
+    ds->endClipNotify		= info->endClipNotify;
+
+    ds->ClipNotify		= pScreen->ClipNotify;
+    pScreen->ClipNotify		= DRI2ClipNotify;
+    ds->HandleExposures		= pScreen->HandleExposures;
+    pScreen->HandleExposures	= DRI2HandleExposures;
+
+    dixSetPrivate(&pScreen->devPrivates, dri2ScreenPrivateKey, ds);
+
+    p = DRI2SetupSAREA(pScreen, info->driverSareaSize);
+    if (p == NULL) {
+	xfree(ds);
+	return NULL;
+    }
+
+    xf86DrvMsg(pScreen->myNum, X_INFO, "[DRI2] Setup complete\n");
+
+    return p;
+}
+
+static pointer
+DRI2Setup(pointer module, pointer opts, int *errmaj, int *errmin)
+{
+    return (pointer) 1;
+}
+
+static XF86ModuleVersionInfo DRI2VersRec =
+{
+    "dri2",
+    MODULEVENDORSTRING,
+    MODINFOSTRING1,
+    MODINFOSTRING2,
+    XORG_VERSION_CURRENT,
+    1, 0, 0,
+    ABI_CLASS_EXTENSION,
+    ABI_EXTENSION_VERSION,
+    MOD_CLASS_NONE,
+    { 0, 0, 0, 0 }
+};
+
+_X_EXPORT XF86ModuleData dri2ModuleData = { &DRI2VersRec, DRI2Setup, NULL };
+

hw/xfree86/dri2/dri2.h

@@ -0,0 +1,77 @@
+/*
+ * Copyright © 2007 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Soft-
+ * ware"), to deal in the Software without restriction, including without
+ * limitation the rights to use, copy, modify, merge, publish, distribute,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, provided that the above copyright
+ * notice(s) and this permission notice appear in all copies of the Soft-
+ * ware and that both the above copyright notice(s) and this permission
+ * notice appear in supporting documentation.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
+ * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
+ * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
+ * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
+ * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
+ * MANCE OF THIS SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or
+ * other dealings in this Software without prior written authorization of
+ * the copyright holder.
+ *
+ * Authors:
+ *   Kristian Høgsberg (krh@redhat.com)
+ */
+
+#ifndef _DRI2_H_
+#define _DRI2_H_
+
+typedef unsigned int	(*DRI2GetPixmapHandleProcPtr)(PixmapPtr p,
+						      unsigned int *flags);
+typedef void		(*DRI2BeginClipNotifyProcPtr)(ScreenPtr pScreen);
+typedef void		(*DRI2EndClipNotifyProcPtr)(ScreenPtr pScreen);
+
+typedef struct {
+    unsigned int version;	/* Version of this struct */
+    int fd;
+    size_t driverSareaSize;
+    const char *driverName;
+    int ddxVersionMajor, ddxVersionMinor, ddxVersionPatch;
+    DRI2GetPixmapHandleProcPtr getPixmapHandle;
+    DRI2BeginClipNotifyProcPtr beginClipNotify;
+    DRI2EndClipNotifyProcPtr endClipNotify;
+}  DRI2InfoRec, *DRI2InfoPtr;
+
+void *DRI2ScreenInit(ScreenPtr	pScreen,
+		     DRI2InfoPtr info);
+
+void DRI2CloseScreen(ScreenPtr pScreen);
+
+Bool DRI2Connect(ScreenPtr pScreen,
+		 int *fd,
+		 const char **driverName,
+		 int *ddxMajor,
+		 int *ddxMinor,
+		 int *ddxPatch,
+		 unsigned int *sareaHandle);
+
+void DRI2Lock(ScreenPtr pScreen);
+void DRI2Unlock(ScreenPtr pScreen);
+
+Bool DRI2CreateDrawable(ScreenPtr	 pScreen,
+			DrawablePtr	 pDraw,
+			drm_drawable_t	*pDrmDrawable);
+
+void DRI2DestroyDrawable(ScreenPtr	pScreen,
+			 DrawablePtr	pDraw);
+
+void DRI2ExtensionInit(void);
+
+#endif

include/dix-config.h.in

@@ -436,6 +436,9 @@
 
 #undef XEPHYR_DRI
 
+/* Build DRI2 extension */
+#undef DRI2
+
 /* Build DBE support */
 #undef DBE
 

include/xorg-config.h.in

@@ -54,6 +54,9 @@
 /* Building DRI-capable DDX. */
 #undef XF86DRI
 
+/* Build DRI2 extension */
+#undef DRI2
+
 /* Solaris 8 or later? */
 #undef __SOL8__
 

include/xorg-server.h.in

@@ -142,6 +142,9 @@
 /* Build DRI extension */
 #undef XF86DRI
 
+/* Build DRI2 extension */
+#undef DRI2
+
 /* Build Xorg server */
 #undef XORGSERVER