375 lines
9.5 KiB
C
375 lines
9.5 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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/* The only xf86 include */
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#include "xf86Module.h"
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static ExtensionEntry *dri2Extension;
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static RESTYPE dri2DrawableRes;
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static Bool
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validDrawable(ClientPtr client, XID drawable,
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DrawablePtr *pDrawable, int *status)
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{
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*status = dixLookupDrawable(pDrawable, drawable, client, 0, DixReadAccess);
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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 client->noClientException;
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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, &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 client->noClientException;
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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, &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 client->noClientException;
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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, &pDrawable, &status))
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return status;
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status = DRI2CreateDrawable(pDrawable);
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if (status != Success)
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return status;
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if (!AddResource(stuff->drawable, dri2DrawableRes, pDrawable)) {
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DRI2DestroyDrawable(pDrawable);
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return BadAlloc;
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}
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return client->noClientException;
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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, &pDrawable, &status))
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return status;
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FreeResourceByType(stuff->drawable, dri2DrawableRes, FALSE);
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return client->noClientException;
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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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xDRI2GetBuffersReply rep;
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DrawablePtr pDrawable;
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DRI2BufferPtr buffers;
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int i, status, width, height, count;
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unsigned int *attachments;
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xDRI2Buffer buffer;
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REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * 4);
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if (!validDrawable(client, stuff->drawable, &pDrawable, &status))
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return status;
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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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rep.type = X_Reply;
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rep.length = count * 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;
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WriteToClient(client, sizeof(xDRI2GetBuffersReply), &rep);
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for (i = 0; i < count; i++) {
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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 client->noClientException;
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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, &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 client->noClientException;
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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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if (!LocalClient(client))
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return BadRequest;
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switch (stuff->data) {
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case X_DRI2Connect:
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return ProcDRI2Connect(client);
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case X_DRI2Authenticate:
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return ProcDRI2Authenticate(client);
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case X_DRI2CreateDrawable:
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return ProcDRI2CreateDrawable(client);
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case X_DRI2DestroyDrawable:
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return ProcDRI2DestroyDrawable(client);
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case X_DRI2GetBuffers:
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return ProcDRI2GetBuffers(client);
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case X_DRI2CopyRegion:
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return ProcDRI2CopyRegion(client);
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default:
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return BadRequest;
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}
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}
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static int
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SProcDRI2Connect(ClientPtr client)
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{
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REQUEST(xDRI2ConnectReq);
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xDRI2ConnectReply rep;
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int n;
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/* If the client is swapped, it's not local. Talk to the hand. */
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swaps(&stuff->length, n);
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if (sizeof(*stuff) / 4 != client->req_len)
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return BadLength;
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rep.sequenceNumber = client->sequence;
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swaps(&rep.sequenceNumber, n);
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rep.length = 0;
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rep.driverNameLength = 0;
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rep.deviceNameLength = 0;
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return client->noClientException;
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}
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static int
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SProcDRI2Dispatch (ClientPtr client)
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{
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REQUEST(xReq);
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/*
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* Only local clients are allowed DRI access, but remote clients
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* still need these requests to find out cleanly.
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*/
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switch (stuff->data)
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{
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case X_DRI2QueryVersion:
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return ProcDRI2QueryVersion(client);
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case X_DRI2Connect:
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return SProcDRI2Connect(client);
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default:
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return BadRequest;
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}
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}
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static int DRI2DrawableGone(pointer p, XID id)
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{
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DrawablePtr pDrawable = p;
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DRI2DestroyDrawable(pDrawable);
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return Success;
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}
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static void
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DRI2ExtensionInit(void)
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{
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dri2Extension = AddExtension(DRI2_NAME,
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DRI2NumberEvents,
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DRI2NumberErrors,
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ProcDRI2Dispatch,
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SProcDRI2Dispatch,
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NULL,
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StandardMinorOpcode);
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dri2DrawableRes = CreateNewResourceType(DRI2DrawableGone);
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}
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extern Bool noDRI2Extension;
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_X_HIDDEN ExtensionModule dri2ExtensionModule = {
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DRI2ExtensionInit,
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DRI2_NAME,
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&noDRI2Extension,
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NULL,
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NULL
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};
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