8033fb6c97
TryClientEvents already did this; this commit just moves the assignment one level down so that no event source has to worry about sequence numbers. ...No event source, that is, except XKB, which inexplicably calls WriteToClient directly for several events. Signed-off-by: Jamey Sharp <jamey@minilop.net> Reviewed-by: Julien Cristau <jcristau@debian.org> Reviewed-by: Adam Jackson <ajax@redhat.com>
660 lines
16 KiB
C
660 lines
16 KiB
C
/*
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* Copyright © 2008 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Soft-
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* ware"), to deal in the Software without restriction, including without
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* limitation the rights to use, copy, modify, merge, publish, distribute,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, provided that the above copyright
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* notice(s) and this permission notice appear in all copies of the Soft-
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* ware and that both the above copyright notice(s) and this permission
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* notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
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* ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
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* RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
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* THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
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* QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
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* MANCE OF THIS SOFTWARE.
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*
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* Except as contained in this notice, the name of a copyright holder shall
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* not be used in advertising or otherwise to promote the sale, use or
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* other dealings in this Software without prior written authorization of
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* the copyright holder.
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*
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* Authors:
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* Kristian Høgsberg (krh@redhat.com)
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <X11/X.h>
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#include <X11/Xproto.h>
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#include <X11/extensions/dri2proto.h>
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#include <X11/extensions/xfixeswire.h>
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#include "dixstruct.h"
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#include "scrnintstr.h"
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#include "pixmapstr.h"
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#include "extnsionst.h"
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#include "xf86drm.h"
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#include "xfixes.h"
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#include "dri2.h"
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#include "protocol-versions.h"
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/* The only xf86 include */
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#include "xf86Module.h"
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static ExtensionEntry *dri2Extension;
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static Bool
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validDrawable(ClientPtr client, XID drawable, Mask access_mode,
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DrawablePtr *pDrawable, int *status)
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{
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*status = dixLookupDrawable(pDrawable, drawable, client, 0, access_mode);
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if (*status != Success) {
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client->errorValue = drawable;
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return FALSE;
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}
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return TRUE;
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}
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static int
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ProcDRI2QueryVersion(ClientPtr client)
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{
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REQUEST(xDRI2QueryVersionReq);
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xDRI2QueryVersionReply rep;
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int n;
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if (client->swapped)
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swaps(&stuff->length, n);
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REQUEST_SIZE_MATCH(xDRI2QueryVersionReq);
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rep.type = X_Reply;
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rep.length = 0;
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rep.sequenceNumber = client->sequence;
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rep.majorVersion = dri2_major;
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rep.minorVersion = dri2_minor;
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if (client->swapped) {
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swaps(&rep.sequenceNumber, n);
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swapl(&rep.length, n);
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swapl(&rep.majorVersion, n);
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swapl(&rep.minorVersion, n);
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}
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WriteToClient(client, sizeof(xDRI2QueryVersionReply), &rep);
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return Success;
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}
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static int
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ProcDRI2Connect(ClientPtr client)
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{
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REQUEST(xDRI2ConnectReq);
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xDRI2ConnectReply rep;
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DrawablePtr pDraw;
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int fd, status;
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const char *driverName;
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const char *deviceName;
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REQUEST_SIZE_MATCH(xDRI2ConnectReq);
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if (!validDrawable(client, stuff->window, DixGetAttrAccess,
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&pDraw, &status))
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return status;
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rep.type = X_Reply;
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rep.length = 0;
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rep.sequenceNumber = client->sequence;
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rep.driverNameLength = 0;
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rep.deviceNameLength = 0;
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if (!DRI2Connect(pDraw->pScreen,
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stuff->driverType, &fd, &driverName, &deviceName))
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goto fail;
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rep.driverNameLength = strlen(driverName);
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rep.deviceNameLength = strlen(deviceName);
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rep.length = (rep.driverNameLength + 3) / 4 +
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(rep.deviceNameLength + 3) / 4;
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fail:
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WriteToClient(client, sizeof(xDRI2ConnectReply), &rep);
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WriteToClient(client, rep.driverNameLength, driverName);
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WriteToClient(client, rep.deviceNameLength, deviceName);
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return Success;
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}
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static int
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ProcDRI2Authenticate(ClientPtr client)
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{
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REQUEST(xDRI2AuthenticateReq);
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xDRI2AuthenticateReply rep;
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DrawablePtr pDraw;
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int status;
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REQUEST_SIZE_MATCH(xDRI2AuthenticateReq);
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if (!validDrawable(client, stuff->window, DixGetAttrAccess,
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&pDraw, &status))
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return status;
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rep.type = X_Reply;
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rep.sequenceNumber = client->sequence;
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rep.length = 0;
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rep.authenticated = DRI2Authenticate(pDraw->pScreen, stuff->magic);
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WriteToClient(client, sizeof(xDRI2AuthenticateReply), &rep);
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return Success;
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}
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static void
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DRI2InvalidateBuffersEvent(DrawablePtr pDraw, void *priv)
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{
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xDRI2InvalidateBuffers event;
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ClientPtr client = priv;
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event.type = DRI2EventBase + DRI2_InvalidateBuffers;
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event.drawable = pDraw->id;
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WriteEventsToClient(client, 1, (xEvent *)&event);
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}
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static int
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ProcDRI2CreateDrawable(ClientPtr client)
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{
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REQUEST(xDRI2CreateDrawableReq);
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DrawablePtr pDrawable;
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int status;
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REQUEST_SIZE_MATCH(xDRI2CreateDrawableReq);
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if (!validDrawable(client, stuff->drawable, DixAddAccess,
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&pDrawable, &status))
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return status;
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status = DRI2CreateDrawable(client, pDrawable, stuff->drawable,
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DRI2InvalidateBuffersEvent, client);
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if (status != Success)
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return status;
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return Success;
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}
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static int
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ProcDRI2DestroyDrawable(ClientPtr client)
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{
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REQUEST(xDRI2DestroyDrawableReq);
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DrawablePtr pDrawable;
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int status;
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REQUEST_SIZE_MATCH(xDRI2DestroyDrawableReq);
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if (!validDrawable(client, stuff->drawable, DixRemoveAccess,
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&pDrawable, &status))
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return status;
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return Success;
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}
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static int
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send_buffers_reply(ClientPtr client, DrawablePtr pDrawable,
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DRI2BufferPtr *buffers, int count, int width, int height)
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{
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xDRI2GetBuffersReply rep;
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int skip = 0;
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int i;
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if (buffers == NULL)
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return BadAlloc;
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if (pDrawable->type == DRAWABLE_WINDOW) {
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for (i = 0; i < count; i++) {
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/* Do not send the real front buffer of a window to the client.
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*/
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if (buffers[i]->attachment == DRI2BufferFrontLeft) {
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skip++;
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continue;
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}
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}
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}
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rep.type = X_Reply;
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rep.length = (count - skip) * sizeof(xDRI2Buffer) / 4;
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rep.sequenceNumber = client->sequence;
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rep.width = width;
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rep.height = height;
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rep.count = count - skip;
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WriteToClient(client, sizeof(xDRI2GetBuffersReply), &rep);
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for (i = 0; i < count; i++) {
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xDRI2Buffer buffer;
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/* Do not send the real front buffer of a window to the client.
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*/
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if ((pDrawable->type == DRAWABLE_WINDOW)
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&& (buffers[i]->attachment == DRI2BufferFrontLeft)) {
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continue;
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}
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buffer.attachment = buffers[i]->attachment;
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buffer.name = buffers[i]->name;
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buffer.pitch = buffers[i]->pitch;
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buffer.cpp = buffers[i]->cpp;
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buffer.flags = buffers[i]->flags;
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WriteToClient(client, sizeof(xDRI2Buffer), &buffer);
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}
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return Success;
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}
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static int
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ProcDRI2GetBuffers(ClientPtr client)
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{
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REQUEST(xDRI2GetBuffersReq);
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DrawablePtr pDrawable;
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DRI2BufferPtr *buffers;
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int status, width, height, count;
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unsigned int *attachments;
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REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * 4);
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if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess,
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&pDrawable, &status))
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return status;
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if (DRI2ThrottleClient(client, pDrawable))
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return Success;
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attachments = (unsigned int *) &stuff[1];
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buffers = DRI2GetBuffers(pDrawable, &width, &height,
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attachments, stuff->count, &count);
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return send_buffers_reply(client, pDrawable, buffers, count, width, height);
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}
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static int
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ProcDRI2GetBuffersWithFormat(ClientPtr client)
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{
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REQUEST(xDRI2GetBuffersReq);
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DrawablePtr pDrawable;
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DRI2BufferPtr *buffers;
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int status, width, height, count;
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unsigned int *attachments;
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REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * (2 * 4));
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if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess,
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&pDrawable, &status))
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return status;
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if (DRI2ThrottleClient(client, pDrawable))
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return Success;
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attachments = (unsigned int *) &stuff[1];
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buffers = DRI2GetBuffersWithFormat(pDrawable, &width, &height,
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attachments, stuff->count, &count);
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return send_buffers_reply(client, pDrawable, buffers, count, width, height);
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}
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static int
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ProcDRI2CopyRegion(ClientPtr client)
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{
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REQUEST(xDRI2CopyRegionReq);
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xDRI2CopyRegionReply rep;
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DrawablePtr pDrawable;
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int status;
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RegionPtr pRegion;
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REQUEST_SIZE_MATCH(xDRI2CopyRegionReq);
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if (!validDrawable(client, stuff->drawable, DixWriteAccess,
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&pDrawable, &status))
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return status;
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VERIFY_REGION(pRegion, stuff->region, client, DixReadAccess);
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status = DRI2CopyRegion(pDrawable, pRegion, stuff->dest, stuff->src);
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if (status != Success)
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return status;
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/* CopyRegion needs to be a round trip to make sure the X server
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* queues the swap buffer rendering commands before the DRI client
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* continues rendering. The reply has a bitmask to signal the
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* presense of optional return values as well, but we're not using
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* that yet.
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*/
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rep.type = X_Reply;
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rep.length = 0;
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rep.sequenceNumber = client->sequence;
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WriteToClient(client, sizeof(xDRI2CopyRegionReply), &rep);
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return Success;
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}
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static void
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load_swap_reply(xDRI2SwapBuffersReply *rep, CARD64 sbc)
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{
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rep->swap_hi = sbc >> 32;
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rep->swap_lo = sbc & 0xffffffff;
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}
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static CARD64
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vals_to_card64(CARD32 lo, CARD32 hi)
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{
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return (CARD64)hi << 32 | lo;
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}
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static void
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DRI2SwapEvent(ClientPtr client, void *data, int type, CARD64 ust, CARD64 msc,
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CARD64 sbc)
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{
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xDRI2BufferSwapComplete event;
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DrawablePtr pDrawable = data;
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event.type = DRI2EventBase + DRI2_BufferSwapComplete;
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event.event_type = type;
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event.drawable = pDrawable->id;
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event.ust_hi = (CARD64)ust >> 32;
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event.ust_lo = ust & 0xffffffff;
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event.msc_hi = (CARD64)msc >> 32;
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event.msc_lo = msc & 0xffffffff;
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event.sbc_hi = (CARD64)sbc >> 32;
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event.sbc_lo = sbc & 0xffffffff;
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WriteEventsToClient(client, 1, (xEvent *)&event);
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}
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static int
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ProcDRI2SwapBuffers(ClientPtr client)
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{
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REQUEST(xDRI2SwapBuffersReq);
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xDRI2SwapBuffersReply rep;
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DrawablePtr pDrawable;
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CARD64 target_msc, divisor, remainder, swap_target;
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int status;
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REQUEST_SIZE_MATCH(xDRI2SwapBuffersReq);
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if (!validDrawable(client, stuff->drawable,
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DixReadAccess | DixWriteAccess, &pDrawable, &status))
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return status;
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/*
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* Ensures an out of control client can't exhaust our swap queue, and
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* also orders swaps.
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*/
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if (DRI2ThrottleClient(client, pDrawable))
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return Success;
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target_msc = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi);
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divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi);
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remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi);
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status = DRI2SwapBuffers(client, pDrawable, target_msc, divisor, remainder,
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&swap_target, DRI2SwapEvent, pDrawable);
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if (status != Success)
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return BadDrawable;
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rep.type = X_Reply;
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rep.length = 0;
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rep.sequenceNumber = client->sequence;
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load_swap_reply(&rep, swap_target);
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WriteToClient(client, sizeof(xDRI2SwapBuffersReply), &rep);
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return Success;
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}
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static void
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load_msc_reply(xDRI2MSCReply *rep, CARD64 ust, CARD64 msc, CARD64 sbc)
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{
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rep->ust_hi = ust >> 32;
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rep->ust_lo = ust & 0xffffffff;
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rep->msc_hi = msc >> 32;
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rep->msc_lo = msc & 0xffffffff;
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rep->sbc_hi = sbc >> 32;
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rep->sbc_lo = sbc & 0xffffffff;
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}
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static int
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ProcDRI2GetMSC(ClientPtr client)
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{
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REQUEST(xDRI2GetMSCReq);
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xDRI2MSCReply rep;
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DrawablePtr pDrawable;
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CARD64 ust, msc, sbc;
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int status;
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REQUEST_SIZE_MATCH(xDRI2GetMSCReq);
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if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable,
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&status))
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return status;
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status = DRI2GetMSC(pDrawable, &ust, &msc, &sbc);
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if (status != Success)
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return status;
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rep.type = X_Reply;
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rep.length = 0;
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rep.sequenceNumber = client->sequence;
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load_msc_reply(&rep, ust, msc, sbc);
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WriteToClient(client, sizeof(xDRI2MSCReply), &rep);
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return Success;
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}
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static int
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ProcDRI2WaitMSC(ClientPtr client)
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{
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REQUEST(xDRI2WaitMSCReq);
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DrawablePtr pDrawable;
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CARD64 target, divisor, remainder;
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int status;
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/* FIXME: in restart case, client may be gone at this point */
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REQUEST_SIZE_MATCH(xDRI2WaitMSCReq);
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if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable,
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&status))
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return status;
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target = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi);
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divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi);
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remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi);
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status = DRI2WaitMSC(client, pDrawable, target, divisor, remainder);
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if (status != Success)
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return status;
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return Success;
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}
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int
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ProcDRI2WaitMSCReply(ClientPtr client, CARD64 ust, CARD64 msc, CARD64 sbc)
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{
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xDRI2MSCReply rep;
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rep.type = X_Reply;
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rep.length = 0;
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rep.sequenceNumber = client->sequence;
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load_msc_reply(&rep, ust, msc, sbc);
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WriteToClient(client, sizeof(xDRI2MSCReply), &rep);
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return Success;
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}
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static int
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ProcDRI2SwapInterval(ClientPtr client)
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{
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REQUEST(xDRI2SwapIntervalReq);
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DrawablePtr pDrawable;
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int status;
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/* FIXME: in restart case, client may be gone at this point */
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REQUEST_SIZE_MATCH(xDRI2SwapIntervalReq);
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if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess,
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&pDrawable, &status))
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return status;
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DRI2SwapInterval(pDrawable, stuff->interval);
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return Success;
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}
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static int
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ProcDRI2WaitSBC(ClientPtr client)
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{
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REQUEST(xDRI2WaitSBCReq);
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xDRI2MSCReply rep;
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DrawablePtr pDrawable;
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CARD64 target, ust, msc, sbc;
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int status;
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REQUEST_SIZE_MATCH(xDRI2WaitSBCReq);
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if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable,
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&status))
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return status;
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target = vals_to_card64(stuff->target_sbc_lo, stuff->target_sbc_hi);
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status = DRI2WaitSBC(client, pDrawable, target, &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
|
|
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
|
|
};
|