initial state (xorg-server 1.10.2)

1 files changed, 650 insertions, 0 deletions

diff --git a/hw/xfree86/dri2/dri2ext.c b/hw/xfree86/dri2/dri2ext.c
new file mode 100644
index 0000000..4e48e65
--- /dev/null
+++ b/hw/xfree86/dri2/dri2ext.c
@@ -0,0 +1,650 @@
+/*
+ * Copyright © 2008 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 <X11/X.h>
+#include <X11/Xproto.h>
+#include <X11/extensions/dri2proto.h>
+#include <X11/extensions/xfixeswire.h>
+#include "dixstruct.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "extnsionst.h"
+#include "xfixes.h"
+#include "dri2.h"
+#include "protocol-versions.h"
+
+/* The only xf86 include */
+#include "xf86Module.h"
+
+static ExtensionEntry	*dri2Extension;
+
+static Bool
+validDrawable(ClientPtr client, XID drawable, Mask access_mode,
+	      DrawablePtr *pDrawable, int *status)
+{
+    *status = dixLookupDrawable(pDrawable, drawable, client,
+				M_DRAWABLE_WINDOW | M_DRAWABLE_PIXMAP,
+				access_mode);
+    if (*status != Success) {
+	client->errorValue = drawable;
+	return FALSE;
+    }
+
+    return TRUE;
+}
+
+static int
+ProcDRI2QueryVersion(ClientPtr client)
+{
+    REQUEST(xDRI2QueryVersionReq);
+    xDRI2QueryVersionReply rep;
+    int n;
+
+    if (client->swapped)
+	swaps(&stuff->length, n);
+
+    REQUEST_SIZE_MATCH(xDRI2QueryVersionReq);
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+    rep.majorVersion = dri2_major;
+    rep.minorVersion = dri2_minor;
+
+    if (client->swapped) {
+    	swaps(&rep.sequenceNumber, n);
+    	swapl(&rep.length, n);
+	swapl(&rep.majorVersion, n);
+	swapl(&rep.minorVersion, n);
+    }
+
+    WriteToClient(client, sizeof(xDRI2QueryVersionReply), &rep);
+
+    return Success;
+}
+
+static int
+ProcDRI2Connect(ClientPtr client)
+{
+    REQUEST(xDRI2ConnectReq);
+    xDRI2ConnectReply rep;
+    DrawablePtr pDraw;
+    int fd, status;
+    const char *driverName;
+    const char *deviceName;
+
+    REQUEST_SIZE_MATCH(xDRI2ConnectReq);
+    if (!validDrawable(client, stuff->window, DixGetAttrAccess,
+		       &pDraw, &status))
+	return status;
+    
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+    rep.driverNameLength = 0;
+    rep.deviceNameLength = 0;
+
+    if (!DRI2Connect(pDraw->pScreen,
+		     stuff->driverType, &fd, &driverName, &deviceName))
+	goto fail;
+
+    rep.driverNameLength = strlen(driverName);
+    rep.deviceNameLength = strlen(deviceName);
+    rep.length = (rep.driverNameLength + 3) / 4 +
+	    (rep.deviceNameLength + 3) / 4;
+
+ fail:
+    WriteToClient(client, sizeof(xDRI2ConnectReply), &rep);
+    WriteToClient(client, rep.driverNameLength, driverName);
+    WriteToClient(client, rep.deviceNameLength, deviceName);
+
+    return Success;
+}
+
+static int
+ProcDRI2Authenticate(ClientPtr client)
+{
+    REQUEST(xDRI2AuthenticateReq);
+    xDRI2AuthenticateReply rep;
+    DrawablePtr pDraw;
+    int status;
+
+    REQUEST_SIZE_MATCH(xDRI2AuthenticateReq);
+    if (!validDrawable(client, stuff->window, DixGetAttrAccess,
+		       &pDraw, &status))
+	return status;
+
+    rep.type = X_Reply;
+    rep.sequenceNumber = client->sequence;
+    rep.length = 0;
+    rep.authenticated = DRI2Authenticate(pDraw->pScreen, stuff->magic);
+    WriteToClient(client, sizeof(xDRI2AuthenticateReply), &rep);
+
+    return Success;
+}
+
+static void
+DRI2InvalidateBuffersEvent(DrawablePtr pDraw, void *priv)
+{
+    xDRI2InvalidateBuffers event;
+    ClientPtr client = priv;
+
+    event.type = DRI2EventBase + DRI2_InvalidateBuffers;
+    event.drawable = pDraw->id;
+
+    WriteEventsToClient(client, 1, (xEvent *)&event);
+}
+
+static int
+ProcDRI2CreateDrawable(ClientPtr client)
+{
+    REQUEST(xDRI2CreateDrawableReq);
+    DrawablePtr pDrawable;
+    int status;
+
+    REQUEST_SIZE_MATCH(xDRI2CreateDrawableReq);
+
+    if (!validDrawable(client, stuff->drawable, DixAddAccess,
+		       &pDrawable, &status))
+	return status;
+
+    status = DRI2CreateDrawable(client, pDrawable, stuff->drawable,
+				DRI2InvalidateBuffersEvent, client);
+    if (status != Success)
+	return status;
+
+    return Success;
+}
+
+static int
+ProcDRI2DestroyDrawable(ClientPtr client)
+{
+    REQUEST(xDRI2DestroyDrawableReq);
+    DrawablePtr pDrawable;
+    int status;
+
+    REQUEST_SIZE_MATCH(xDRI2DestroyDrawableReq);
+    if (!validDrawable(client, stuff->drawable, DixRemoveAccess,
+		       &pDrawable, &status))
+	return status;
+
+    return Success;
+}
+
+
+static int
+send_buffers_reply(ClientPtr client, DrawablePtr pDrawable,
+		   DRI2BufferPtr *buffers, int count, int width, int height)
+{
+    xDRI2GetBuffersReply rep;
+    int skip = 0;
+    int i;
+
+    if (buffers == NULL)
+	    return BadAlloc;
+
+    if (pDrawable->type == DRAWABLE_WINDOW) {
+	for (i = 0; i < count; i++) {
+	    /* Do not send the real front buffer of a window to the client.
+	     */
+	    if (buffers[i]->attachment == DRI2BufferFrontLeft) {
+		skip++;
+		continue;
+	    }
+	}
+    }
+
+    rep.type = X_Reply;
+    rep.length = (count - skip) * sizeof(xDRI2Buffer) / 4;
+    rep.sequenceNumber = client->sequence;
+    rep.width = width;
+    rep.height = height;
+    rep.count = count - skip;
+    WriteToClient(client, sizeof(xDRI2GetBuffersReply), &rep);
+
+    for (i = 0; i < count; i++) {
+	xDRI2Buffer buffer;
+
+	/* Do not send the real front buffer of a window to the client.
+	 */
+	if ((pDrawable->type == DRAWABLE_WINDOW)
+	    && (buffers[i]->attachment == DRI2BufferFrontLeft)) {
+	    continue;
+	}
+
+	buffer.attachment = buffers[i]->attachment;
+	buffer.name = buffers[i]->name;
+	buffer.pitch = buffers[i]->pitch;
+	buffer.cpp = buffers[i]->cpp;
+	buffer.flags = buffers[i]->flags;
+	WriteToClient(client, sizeof(xDRI2Buffer), &buffer);
+    }
+    return Success;
+}
+
+
+static int
+ProcDRI2GetBuffers(ClientPtr client)
+{
+    REQUEST(xDRI2GetBuffersReq);
+    DrawablePtr pDrawable;
+    DRI2BufferPtr *buffers;
+    int status, width, height, count;
+    unsigned int *attachments;
+
+    REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * 4);
+    if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess,
+		       &pDrawable, &status))
+	return status;
+
+    if (DRI2ThrottleClient(client, pDrawable))
+	return Success;
+
+    attachments = (unsigned int *) &stuff[1];
+    buffers = DRI2GetBuffers(pDrawable, &width, &height,
+			     attachments, stuff->count, &count);
+
+
+    return send_buffers_reply(client, pDrawable, buffers, count, width, height);
+
+}
+
+static int
+ProcDRI2GetBuffersWithFormat(ClientPtr client)
+{
+    REQUEST(xDRI2GetBuffersReq);
+    DrawablePtr pDrawable;
+    DRI2BufferPtr *buffers;
+    int status, width, height, count;
+    unsigned int *attachments;
+
+    REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * (2 * 4));
+    if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess,
+		       &pDrawable, &status))
+	return status;
+
+    if (DRI2ThrottleClient(client, pDrawable))
+	return Success;
+
+    attachments = (unsigned int *) &stuff[1];
+    buffers = DRI2GetBuffersWithFormat(pDrawable, &width, &height,
+				       attachments, stuff->count, &count);
+
+    return send_buffers_reply(client, pDrawable, buffers, count, width, height);
+}
+
+static int
+ProcDRI2CopyRegion(ClientPtr client)
+{
+    REQUEST(xDRI2CopyRegionReq);
+    xDRI2CopyRegionReply rep;
+    DrawablePtr pDrawable;
+    int status;
+    RegionPtr pRegion;
+
+    REQUEST_SIZE_MATCH(xDRI2CopyRegionReq);
+
+    if (!validDrawable(client, stuff->drawable, DixWriteAccess,
+		       &pDrawable, &status))
+	return status;
+
+    VERIFY_REGION(pRegion, stuff->region, client, DixReadAccess);
+
+    status = DRI2CopyRegion(pDrawable, pRegion, stuff->dest, stuff->src);
+    if (status != Success)
+	return status;
+
+    /* CopyRegion needs to be a round trip to make sure the X server
+     * queues the swap buffer rendering commands before the DRI client
+     * continues rendering.  The reply has a bitmask to signal the
+     * presense of optional return values as well, but we're not using
+     * that yet.
+     */
+
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+
+    WriteToClient(client, sizeof(xDRI2CopyRegionReply), &rep);
+
+    return Success;
+}
+
+static void
+load_swap_reply(xDRI2SwapBuffersReply *rep, CARD64 sbc)
+{
+    rep->swap_hi = sbc >> 32;
+    rep->swap_lo = sbc & 0xffffffff;
+}
+
+static CARD64
+vals_to_card64(CARD32 lo, CARD32 hi)
+{
+    return (CARD64)hi << 32 | lo;
+}
+
+static void
+DRI2SwapEvent(ClientPtr client, void *data, int type, CARD64 ust, CARD64 msc,
+	      CARD64 sbc)
+{
+    xDRI2BufferSwapComplete event;
+    DrawablePtr pDrawable = data;
+
+    event.type = DRI2EventBase + DRI2_BufferSwapComplete;
+    event.event_type = type;
+    event.drawable = pDrawable->id;
+    event.ust_hi = (CARD64)ust >> 32;
+    event.ust_lo = ust & 0xffffffff;
+    event.msc_hi = (CARD64)msc >> 32;
+    event.msc_lo = msc & 0xffffffff;
+    event.sbc_hi = (CARD64)sbc >> 32;
+    event.sbc_lo = sbc & 0xffffffff;
+
+    WriteEventsToClient(client, 1, (xEvent *)&event);
+}
+
+static int
+ProcDRI2SwapBuffers(ClientPtr client)
+{
+    REQUEST(xDRI2SwapBuffersReq);
+    xDRI2SwapBuffersReply rep;
+    DrawablePtr pDrawable;
+    CARD64 target_msc, divisor, remainder, swap_target;
+    int status;
+
+    REQUEST_SIZE_MATCH(xDRI2SwapBuffersReq);
+
+    if (!validDrawable(client, stuff->drawable,
+		       DixReadAccess | DixWriteAccess, &pDrawable, &status))
+	return status;
+
+    /*
+     * Ensures an out of control client can't exhaust our swap queue, and
+     * also orders swaps.
+     */
+    if (DRI2ThrottleClient(client, pDrawable))
+	return Success;
+
+    target_msc = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi);
+    divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi);
+    remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi);
+
+    status = DRI2SwapBuffers(client, pDrawable, target_msc, divisor, remainder,
+			     &swap_target, DRI2SwapEvent, pDrawable);
+    if (status != Success)
+	return BadDrawable;
+
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+    load_swap_reply(&rep, swap_target);
+
+    WriteToClient(client, sizeof(xDRI2SwapBuffersReply), &rep);
+
+    return Success;
+}
+
+static void
+load_msc_reply(xDRI2MSCReply *rep, CARD64 ust, CARD64 msc, CARD64 sbc)
+{
+    rep->ust_hi = ust >> 32;
+    rep->ust_lo = ust & 0xffffffff;
+    rep->msc_hi = msc >> 32;
+    rep->msc_lo = msc & 0xffffffff;
+    rep->sbc_hi = sbc >> 32;
+    rep->sbc_lo = sbc & 0xffffffff;
+}
+
+static int
+ProcDRI2GetMSC(ClientPtr client)
+{
+    REQUEST(xDRI2GetMSCReq);
+    xDRI2MSCReply rep;
+    DrawablePtr pDrawable;
+    CARD64 ust, msc, sbc;
+    int status;
+
+    REQUEST_SIZE_MATCH(xDRI2GetMSCReq);
+
+    if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable,
+		       &status))
+	return status;
+
+    status = DRI2GetMSC(pDrawable, &ust, &msc, &sbc);
+    if (status != Success)
+	return status;
+
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+    load_msc_reply(&rep, ust, msc, sbc);
+
+    WriteToClient(client, sizeof(xDRI2MSCReply), &rep);
+
+    return Success;
+}
+
+static int
+ProcDRI2WaitMSC(ClientPtr client)
+{
+    REQUEST(xDRI2WaitMSCReq);
+    DrawablePtr pDrawable;
+    CARD64 target, divisor, remainder;
+    int status;
+
+    /* FIXME: in restart case, client may be gone at this point */
+
+    REQUEST_SIZE_MATCH(xDRI2WaitMSCReq);
+
+    if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable,
+		       &status))
+	return status;
+
+    target = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi);
+    divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi);
+    remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi);
+
+    status = DRI2WaitMSC(client, pDrawable, target, divisor, remainder);
+    if (status != Success)
+	return status;
+
+    return Success;
+}
+
+int
+ProcDRI2WaitMSCReply(ClientPtr client, CARD64 ust, CARD64 msc, CARD64 sbc)
+{
+    xDRI2MSCReply rep;
+
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+    load_msc_reply(&rep, ust, msc, sbc);
+
+    WriteToClient(client, sizeof(xDRI2MSCReply), &rep);
+
+    return Success;
+}
+
+static int
+ProcDRI2SwapInterval(ClientPtr client)
+{
+    REQUEST(xDRI2SwapIntervalReq);
+    DrawablePtr pDrawable;
+    int status;
+
+    /* FIXME: in restart case, client may be gone at this point */
+
+    REQUEST_SIZE_MATCH(xDRI2SwapIntervalReq);
+
+    if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess,
+		       &pDrawable, &status))
+	return status;
+
+    DRI2SwapInterval(pDrawable, stuff->interval);
+
+    return Success;
+}
+
+static int
+ProcDRI2WaitSBC(ClientPtr client)
+{
+    REQUEST(xDRI2WaitSBCReq);
+    DrawablePtr pDrawable;
+    CARD64 target;
+    int status;
+
+    REQUEST_SIZE_MATCH(xDRI2WaitSBCReq);
+
+    if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable,
+		       &status))
+	return status;
+
+    target = vals_to_card64(stuff->target_sbc_lo, stuff->target_sbc_hi);
+    status = DRI2WaitSBC(client, pDrawable, target);
+
+    return status;
+}
+
+static int
+ProcDRI2Dispatch (ClientPtr client)
+{
+    REQUEST(xReq);
+    
+    switch (stuff->data) {
+    case X_DRI2QueryVersion:
+	return ProcDRI2QueryVersion(client);
+    }
+
+    if (!LocalClient(client))
+	return BadRequest;
+
+    switch (stuff->data) {
+    case X_DRI2Connect:
+	return ProcDRI2Connect(client);
+    case X_DRI2Authenticate:
+	return ProcDRI2Authenticate(client);
+    case X_DRI2CreateDrawable:
+	return ProcDRI2CreateDrawable(client);
+    case X_DRI2DestroyDrawable:
+	return ProcDRI2DestroyDrawable(client);
+    case X_DRI2GetBuffers:
+	return ProcDRI2GetBuffers(client);
+    case X_DRI2CopyRegion:
+	return ProcDRI2CopyRegion(client);
+    case X_DRI2GetBuffersWithFormat:
+	return ProcDRI2GetBuffersWithFormat(client);
+    case X_DRI2SwapBuffers:
+	return ProcDRI2SwapBuffers(client);
+    case X_DRI2GetMSC:
+	return ProcDRI2GetMSC(client);
+    case X_DRI2WaitMSC:
+	return ProcDRI2WaitMSC(client);
+    case X_DRI2WaitSBC:
+	return ProcDRI2WaitSBC(client);
+    case X_DRI2SwapInterval:
+	return ProcDRI2SwapInterval(client);
+    default:
+	return BadRequest;
+    }
+}
+
+static int
+SProcDRI2Connect(ClientPtr client)
+{
+    REQUEST(xDRI2ConnectReq);
+    xDRI2ConnectReply rep;
+    int n;
+
+    /* If the client is swapped, it's not local.  Talk to the hand. */
+
+    swaps(&stuff->length, n);
+    if (sizeof(*stuff) / 4 != client->req_len)
+	return BadLength;
+
+    rep.sequenceNumber = client->sequence;
+    swaps(&rep.sequenceNumber, n);
+    rep.length = 0;
+    rep.driverNameLength = 0;
+    rep.deviceNameLength = 0;
+
+    return Success;
+}
+
+static int
+SProcDRI2Dispatch (ClientPtr client)
+{
+    REQUEST(xReq);
+
+    /*
+     * Only local clients are allowed DRI access, but remote clients
+     * still need these requests to find out cleanly.
+     */
+    switch (stuff->data)
+    {
+    case X_DRI2QueryVersion:
+	return ProcDRI2QueryVersion(client);
+    case X_DRI2Connect:
+	return SProcDRI2Connect(client);
+    default:
+	return BadRequest;
+    }
+}
+
+int DRI2EventBase;
+
+static void
+DRI2ExtensionInit(void)
+{
+    dri2Extension = AddExtension(DRI2_NAME,
+				 DRI2NumberEvents,
+				 DRI2NumberErrors,
+				 ProcDRI2Dispatch,
+				 SProcDRI2Dispatch,
+				 NULL,
+				 StandardMinorOpcode);
+
+    DRI2EventBase = dri2Extension->eventBase;
+}
+
+extern Bool noDRI2Extension;
+
+_X_HIDDEN ExtensionModule dri2ExtensionModule = {
+    DRI2ExtensionInit,
+    DRI2_NAME,
+    &noDRI2Extension,
+    NULL,
+    NULL
+};