648 lines
16 KiB
C
648 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 "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,
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M_DRAWABLE_WINDOW | M_DRAWABLE_PIXMAP,
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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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if (client->swapped)
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swaps(&stuff->length);
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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);
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swapl(&rep.length);
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swapl(&rep.majorVersion);
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swapl(&rep.minorVersion);
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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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CARD32 sbc)
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{
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xDRI2BufferSwapComplete2 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 = sbc;
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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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DrawablePtr pDrawable;
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CARD64 target;
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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);
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return status;
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}
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static int
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ProcDRI2Dispatch (ClientPtr client)
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{
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REQUEST(xReq);
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switch (stuff->data) {
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case X_DRI2QueryVersion:
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return ProcDRI2QueryVersion(client);
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}
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|
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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;
|
|
|
|
/* If the client is swapped, it's not local. Talk to the hand. */
|
|
|
|
swaps(&stuff->length);
|
|
if (sizeof(*stuff) / 4 != client->req_len)
|
|
return BadLength;
|
|
|
|
rep.sequenceNumber = client->sequence;
|
|
swaps(&rep.sequenceNumber);
|
|
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
|
|
};
|