diff options
Diffstat (limited to 'xorg-server/hw/xfree86/dri2/dri2ext.c')
| -rw-r--r-- | xorg-server/hw/xfree86/dri2/dri2ext.c | 1299 |
1 files changed, 649 insertions, 650 deletions
diff --git a/xorg-server/hw/xfree86/dri2/dri2ext.c b/xorg-server/hw/xfree86/dri2/dri2ext.c index 6853fab9e..552b26b7c 100644 --- a/xorg-server/hw/xfree86/dri2/dri2ext.c +++ b/xorg-server/hw/xfree86/dri2/dri2ext.c @@ -1,650 +1,649 @@ -/*
- * Copyright © 2008 Red Hat, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Soft-
- * ware"), to deal in the Software without restriction, including without
- * limitation the rights to use, copy, modify, merge, publish, distribute,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, provided that the above copyright
- * notice(s) and this permission notice appear in all copies of the Soft-
- * ware and that both the above copyright notice(s) and this permission
- * notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
- * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
- * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
- * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
- * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
- * MANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder shall
- * not be used in advertising or otherwise to promote the sale, use or
- * other dealings in this Software without prior written authorization of
- * the copyright holder.
- *
- * Authors:
- * Kristian Høgsberg (krh@redhat.com)
- */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xproto.h>
-#include <X11/extensions/dri2proto.h>
-#include <X11/extensions/xfixeswire.h>
-#include "dixstruct.h"
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "extnsionst.h"
-#include "xfixes.h"
-#include "dri2.h"
-#include "protocol-versions.h"
-
-/* The only xf86 include */
-#include "xf86Module.h"
-
-static ExtensionEntry *dri2Extension;
-
-static Bool
-validDrawable(ClientPtr client, XID drawable, Mask access_mode,
- DrawablePtr *pDrawable, int *status)
-{
- *status = dixLookupDrawable(pDrawable, drawable, client,
- M_DRAWABLE_WINDOW | M_DRAWABLE_PIXMAP,
- access_mode);
- if (*status != Success) {
- client->errorValue = drawable;
- return FALSE;
- }
-
- return TRUE;
-}
-
-static int
-ProcDRI2QueryVersion(ClientPtr client)
-{
- REQUEST(xDRI2QueryVersionReq);
- xDRI2QueryVersionReply rep;
- int n;
-
- if (client->swapped)
- swaps(&stuff->length, n);
-
- REQUEST_SIZE_MATCH(xDRI2QueryVersionReq);
- rep.type = X_Reply;
- rep.length = 0;
- rep.sequenceNumber = client->sequence;
- rep.majorVersion = dri2_major;
- rep.minorVersion = dri2_minor;
-
- if (client->swapped) {
- swaps(&rep.sequenceNumber, n);
- swapl(&rep.length, n);
- swapl(&rep.majorVersion, n);
- swapl(&rep.minorVersion, n);
- }
-
- WriteToClient(client, sizeof(xDRI2QueryVersionReply), &rep);
-
- return Success;
-}
-
-static int
-ProcDRI2Connect(ClientPtr client)
-{
- REQUEST(xDRI2ConnectReq);
- xDRI2ConnectReply rep;
- DrawablePtr pDraw;
- int fd, status;
- const char *driverName;
- const char *deviceName;
-
- REQUEST_SIZE_MATCH(xDRI2ConnectReq);
- if (!validDrawable(client, stuff->window, DixGetAttrAccess,
- &pDraw, &status))
- return status;
-
- rep.type = X_Reply;
- rep.length = 0;
- rep.sequenceNumber = client->sequence;
- rep.driverNameLength = 0;
- rep.deviceNameLength = 0;
-
- if (!DRI2Connect(pDraw->pScreen,
- stuff->driverType, &fd, &driverName, &deviceName))
- goto fail;
-
- rep.driverNameLength = strlen(driverName);
- rep.deviceNameLength = strlen(deviceName);
- rep.length = (rep.driverNameLength + 3) / 4 +
- (rep.deviceNameLength + 3) / 4;
-
- fail:
- WriteToClient(client, sizeof(xDRI2ConnectReply), &rep);
- WriteToClient(client, rep.driverNameLength, driverName);
- WriteToClient(client, rep.deviceNameLength, deviceName);
-
- return Success;
-}
-
-static int
-ProcDRI2Authenticate(ClientPtr client)
-{
- REQUEST(xDRI2AuthenticateReq);
- xDRI2AuthenticateReply rep;
- DrawablePtr pDraw;
- int status;
-
- REQUEST_SIZE_MATCH(xDRI2AuthenticateReq);
- if (!validDrawable(client, stuff->window, DixGetAttrAccess,
- &pDraw, &status))
- return status;
-
- rep.type = X_Reply;
- rep.sequenceNumber = client->sequence;
- rep.length = 0;
- rep.authenticated = DRI2Authenticate(pDraw->pScreen, stuff->magic);
- WriteToClient(client, sizeof(xDRI2AuthenticateReply), &rep);
-
- return Success;
-}
-
-static void
-DRI2InvalidateBuffersEvent(DrawablePtr pDraw, void *priv)
-{
- xDRI2InvalidateBuffers event;
- ClientPtr client = priv;
-
- event.type = DRI2EventBase + DRI2_InvalidateBuffers;
- event.drawable = pDraw->id;
-
- WriteEventsToClient(client, 1, (xEvent *)&event);
-}
-
-static int
-ProcDRI2CreateDrawable(ClientPtr client)
-{
- REQUEST(xDRI2CreateDrawableReq);
- DrawablePtr pDrawable;
- int status;
-
- REQUEST_SIZE_MATCH(xDRI2CreateDrawableReq);
-
- if (!validDrawable(client, stuff->drawable, DixAddAccess,
- &pDrawable, &status))
- return status;
-
- status = DRI2CreateDrawable(client, pDrawable, stuff->drawable,
- DRI2InvalidateBuffersEvent, client);
- if (status != Success)
- return status;
-
- return Success;
-}
-
-static int
-ProcDRI2DestroyDrawable(ClientPtr client)
-{
- REQUEST(xDRI2DestroyDrawableReq);
- DrawablePtr pDrawable;
- int status;
-
- REQUEST_SIZE_MATCH(xDRI2DestroyDrawableReq);
- if (!validDrawable(client, stuff->drawable, DixRemoveAccess,
- &pDrawable, &status))
- return status;
-
- return Success;
-}
-
-
-static int
-send_buffers_reply(ClientPtr client, DrawablePtr pDrawable,
- DRI2BufferPtr *buffers, int count, int width, int height)
-{
- xDRI2GetBuffersReply rep;
- int skip = 0;
- int i;
-
- if (buffers == NULL)
- return BadAlloc;
-
- if (pDrawable->type == DRAWABLE_WINDOW) {
- for (i = 0; i < count; i++) {
- /* Do not send the real front buffer of a window to the client.
- */
- if (buffers[i]->attachment == DRI2BufferFrontLeft) {
- skip++;
- continue;
- }
- }
- }
-
- rep.type = X_Reply;
- rep.length = (count - skip) * sizeof(xDRI2Buffer) / 4;
- rep.sequenceNumber = client->sequence;
- rep.width = width;
- rep.height = height;
- rep.count = count - skip;
- WriteToClient(client, sizeof(xDRI2GetBuffersReply), &rep);
-
- for (i = 0; i < count; i++) {
- xDRI2Buffer buffer;
-
- /* Do not send the real front buffer of a window to the client.
- */
- if ((pDrawable->type == DRAWABLE_WINDOW)
- && (buffers[i]->attachment == DRI2BufferFrontLeft)) {
- continue;
- }
-
- buffer.attachment = buffers[i]->attachment;
- buffer.name = buffers[i]->name;
- buffer.pitch = buffers[i]->pitch;
- buffer.cpp = buffers[i]->cpp;
- buffer.flags = buffers[i]->flags;
- WriteToClient(client, sizeof(xDRI2Buffer), &buffer);
- }
- return Success;
-}
-
-
-static int
-ProcDRI2GetBuffers(ClientPtr client)
-{
- REQUEST(xDRI2GetBuffersReq);
- DrawablePtr pDrawable;
- DRI2BufferPtr *buffers;
- int status, width, height, count;
- unsigned int *attachments;
-
- REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * 4);
- if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess,
- &pDrawable, &status))
- return status;
-
- if (DRI2ThrottleClient(client, pDrawable))
- return Success;
-
- attachments = (unsigned int *) &stuff[1];
- buffers = DRI2GetBuffers(pDrawable, &width, &height,
- attachments, stuff->count, &count);
-
-
- return send_buffers_reply(client, pDrawable, buffers, count, width, height);
-
-}
-
-static int
-ProcDRI2GetBuffersWithFormat(ClientPtr client)
-{
- REQUEST(xDRI2GetBuffersReq);
- DrawablePtr pDrawable;
- DRI2BufferPtr *buffers;
- int status, width, height, count;
- unsigned int *attachments;
-
- REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * (2 * 4));
- if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess,
- &pDrawable, &status))
- return status;
-
- if (DRI2ThrottleClient(client, pDrawable))
- return Success;
-
- attachments = (unsigned int *) &stuff[1];
- buffers = DRI2GetBuffersWithFormat(pDrawable, &width, &height,
- attachments, stuff->count, &count);
-
- return send_buffers_reply(client, pDrawable, buffers, count, width, height);
-}
-
-static int
-ProcDRI2CopyRegion(ClientPtr client)
-{
- REQUEST(xDRI2CopyRegionReq);
- xDRI2CopyRegionReply rep;
- DrawablePtr pDrawable;
- int status;
- RegionPtr pRegion;
-
- REQUEST_SIZE_MATCH(xDRI2CopyRegionReq);
-
- if (!validDrawable(client, stuff->drawable, DixWriteAccess,
- &pDrawable, &status))
- return status;
-
- VERIFY_REGION(pRegion, stuff->region, client, DixReadAccess);
-
- status = DRI2CopyRegion(pDrawable, pRegion, stuff->dest, stuff->src);
- if (status != Success)
- return status;
-
- /* CopyRegion needs to be a round trip to make sure the X server
- * queues the swap buffer rendering commands before the DRI client
- * continues rendering. The reply has a bitmask to signal the
- * presense of optional return values as well, but we're not using
- * that yet.
- */
-
- rep.type = X_Reply;
- rep.length = 0;
- rep.sequenceNumber = client->sequence;
-
- WriteToClient(client, sizeof(xDRI2CopyRegionReply), &rep);
-
- return Success;
-}
-
-static void
-load_swap_reply(xDRI2SwapBuffersReply *rep, CARD64 sbc)
-{
- rep->swap_hi = sbc >> 32;
- rep->swap_lo = sbc & 0xffffffff;
-}
-
-static CARD64
-vals_to_card64(CARD32 lo, CARD32 hi)
-{
- return (CARD64)hi << 32 | lo;
-}
-
-static void
-DRI2SwapEvent(ClientPtr client, void *data, int type, CARD64 ust, CARD64 msc,
- CARD64 sbc)
-{
- xDRI2BufferSwapComplete event;
- DrawablePtr pDrawable = data;
-
- event.type = DRI2EventBase + DRI2_BufferSwapComplete;
- event.event_type = type;
- event.drawable = pDrawable->id;
- event.ust_hi = (CARD64)ust >> 32;
- event.ust_lo = ust & 0xffffffff;
- event.msc_hi = (CARD64)msc >> 32;
- event.msc_lo = msc & 0xffffffff;
- event.sbc_hi = (CARD64)sbc >> 32;
- event.sbc_lo = sbc & 0xffffffff;
-
- WriteEventsToClient(client, 1, (xEvent *)&event);
-}
-
-static int
-ProcDRI2SwapBuffers(ClientPtr client)
-{
- REQUEST(xDRI2SwapBuffersReq);
- xDRI2SwapBuffersReply rep;
- DrawablePtr pDrawable;
- CARD64 target_msc, divisor, remainder, swap_target;
- int status;
-
- REQUEST_SIZE_MATCH(xDRI2SwapBuffersReq);
-
- if (!validDrawable(client, stuff->drawable,
- DixReadAccess | DixWriteAccess, &pDrawable, &status))
- return status;
-
- /*
- * Ensures an out of control client can't exhaust our swap queue, and
- * also orders swaps.
- */
- if (DRI2ThrottleClient(client, pDrawable))
- return Success;
-
- target_msc = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi);
- divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi);
- remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi);
-
- status = DRI2SwapBuffers(client, pDrawable, target_msc, divisor, remainder,
- &swap_target, DRI2SwapEvent, pDrawable);
- if (status != Success)
- return BadDrawable;
-
- rep.type = X_Reply;
- rep.length = 0;
- rep.sequenceNumber = client->sequence;
- load_swap_reply(&rep, swap_target);
-
- WriteToClient(client, sizeof(xDRI2SwapBuffersReply), &rep);
-
- return Success;
-}
-
-static void
-load_msc_reply(xDRI2MSCReply *rep, CARD64 ust, CARD64 msc, CARD64 sbc)
-{
- rep->ust_hi = ust >> 32;
- rep->ust_lo = ust & 0xffffffff;
- rep->msc_hi = msc >> 32;
- rep->msc_lo = msc & 0xffffffff;
- rep->sbc_hi = sbc >> 32;
- rep->sbc_lo = sbc & 0xffffffff;
-}
-
-static int
-ProcDRI2GetMSC(ClientPtr client)
-{
- REQUEST(xDRI2GetMSCReq);
- xDRI2MSCReply rep;
- DrawablePtr pDrawable;
- CARD64 ust, msc, sbc;
- int status;
-
- REQUEST_SIZE_MATCH(xDRI2GetMSCReq);
-
- if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable,
- &status))
- return status;
-
- status = DRI2GetMSC(pDrawable, &ust, &msc, &sbc);
- if (status != Success)
- return status;
-
- rep.type = X_Reply;
- rep.length = 0;
- rep.sequenceNumber = client->sequence;
- load_msc_reply(&rep, ust, msc, sbc);
-
- WriteToClient(client, sizeof(xDRI2MSCReply), &rep);
-
- return Success;
-}
-
-static int
-ProcDRI2WaitMSC(ClientPtr client)
-{
- REQUEST(xDRI2WaitMSCReq);
- DrawablePtr pDrawable;
- CARD64 target, divisor, remainder;
- int status;
-
- /* FIXME: in restart case, client may be gone at this point */
-
- REQUEST_SIZE_MATCH(xDRI2WaitMSCReq);
-
- if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable,
- &status))
- return status;
-
- target = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi);
- divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi);
- remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi);
-
- status = DRI2WaitMSC(client, pDrawable, target, divisor, remainder);
- if (status != Success)
- return status;
-
- return Success;
-}
-
-int
-ProcDRI2WaitMSCReply(ClientPtr client, CARD64 ust, CARD64 msc, CARD64 sbc)
-{
- xDRI2MSCReply rep;
-
- rep.type = X_Reply;
- rep.length = 0;
- rep.sequenceNumber = client->sequence;
- load_msc_reply(&rep, ust, msc, sbc);
-
- WriteToClient(client, sizeof(xDRI2MSCReply), &rep);
-
- return Success;
-}
-
-static int
-ProcDRI2SwapInterval(ClientPtr client)
-{
- REQUEST(xDRI2SwapIntervalReq);
- DrawablePtr pDrawable;
- int status;
-
- /* FIXME: in restart case, client may be gone at this point */
-
- REQUEST_SIZE_MATCH(xDRI2SwapIntervalReq);
-
- if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess,
- &pDrawable, &status))
- return status;
-
- DRI2SwapInterval(pDrawable, stuff->interval);
-
- return Success;
-}
-
-static int
-ProcDRI2WaitSBC(ClientPtr client)
-{
- REQUEST(xDRI2WaitSBCReq);
- DrawablePtr pDrawable;
- CARD64 target;
- int status;
-
- REQUEST_SIZE_MATCH(xDRI2WaitSBCReq);
-
- if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable,
- &status))
- return status;
-
- target = vals_to_card64(stuff->target_sbc_lo, stuff->target_sbc_hi);
- status = DRI2WaitSBC(client, pDrawable, target);
-
- return status;
-}
-
-static int
-ProcDRI2Dispatch (ClientPtr client)
-{
- REQUEST(xReq);
-
- switch (stuff->data) {
- case X_DRI2QueryVersion:
- return ProcDRI2QueryVersion(client);
- }
-
- if (!LocalClient(client))
- return BadRequest;
-
- switch (stuff->data) {
- case X_DRI2Connect:
- return ProcDRI2Connect(client);
- case X_DRI2Authenticate:
- return ProcDRI2Authenticate(client);
- case X_DRI2CreateDrawable:
- return ProcDRI2CreateDrawable(client);
- case X_DRI2DestroyDrawable:
- return ProcDRI2DestroyDrawable(client);
- case X_DRI2GetBuffers:
- return ProcDRI2GetBuffers(client);
- case X_DRI2CopyRegion:
- return ProcDRI2CopyRegion(client);
- case X_DRI2GetBuffersWithFormat:
- return ProcDRI2GetBuffersWithFormat(client);
- case X_DRI2SwapBuffers:
- return ProcDRI2SwapBuffers(client);
- case X_DRI2GetMSC:
- return ProcDRI2GetMSC(client);
- case X_DRI2WaitMSC:
- return ProcDRI2WaitMSC(client);
- case X_DRI2WaitSBC:
- return ProcDRI2WaitSBC(client);
- case X_DRI2SwapInterval:
- return ProcDRI2SwapInterval(client);
- default:
- return BadRequest;
- }
-}
-
-static int
-SProcDRI2Connect(ClientPtr client)
-{
- REQUEST(xDRI2ConnectReq);
- xDRI2ConnectReply rep;
- int n;
-
- /* If the client is swapped, it's not local. Talk to the hand. */
-
- swaps(&stuff->length, n);
- if (sizeof(*stuff) / 4 != client->req_len)
- return BadLength;
-
- rep.sequenceNumber = client->sequence;
- swaps(&rep.sequenceNumber, n);
- rep.length = 0;
- rep.driverNameLength = 0;
- rep.deviceNameLength = 0;
-
- return Success;
-}
-
-static int
-SProcDRI2Dispatch (ClientPtr client)
-{
- REQUEST(xReq);
-
- /*
- * Only local clients are allowed DRI access, but remote clients
- * still need these requests to find out cleanly.
- */
- switch (stuff->data)
- {
- case X_DRI2QueryVersion:
- return ProcDRI2QueryVersion(client);
- case X_DRI2Connect:
- return SProcDRI2Connect(client);
- default:
- return BadRequest;
- }
-}
-
-int DRI2EventBase;
-
-static void
-DRI2ExtensionInit(void)
-{
- dri2Extension = AddExtension(DRI2_NAME,
- DRI2NumberEvents,
- DRI2NumberErrors,
- ProcDRI2Dispatch,
- SProcDRI2Dispatch,
- NULL,
- StandardMinorOpcode);
-
- DRI2EventBase = dri2Extension->eventBase;
-}
-
-extern Bool noDRI2Extension;
-
-_X_HIDDEN ExtensionModule dri2ExtensionModule = {
- DRI2ExtensionInit,
- DRI2_NAME,
- &noDRI2Extension,
- NULL,
- NULL
-};
+/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Soft- + * ware"), to deal in the Software without restriction, including without + * limitation the rights to use, copy, modify, merge, publish, distribute, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, provided that the above copyright + * notice(s) and this permission notice appear in all copies of the Soft- + * ware and that both the above copyright notice(s) and this permission + * notice appear in supporting documentation. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- + * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY + * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN + * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE- + * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR- + * MANCE OF THIS SOFTWARE. + * + * Except as contained in this notice, the name of a copyright holder shall + * not be used in advertising or otherwise to promote the sale, use or + * other dealings in this Software without prior written authorization of + * the copyright holder. + * + * Authors: + * Kristian Høgsberg (krh@redhat.com) + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <X11/X.h> +#include <X11/Xproto.h> +#include <X11/extensions/dri2proto.h> +#include <X11/extensions/xfixeswire.h> +#include "dixstruct.h" +#include "scrnintstr.h" +#include "pixmapstr.h" +#include "extnsionst.h" +#include "xfixes.h" +#include "dri2.h" +#include "protocol-versions.h" + +/* The only xf86 include */ +#include "xf86Module.h" + +static ExtensionEntry *dri2Extension; + +static Bool +validDrawable(ClientPtr client, XID drawable, Mask access_mode, + DrawablePtr *pDrawable, int *status) +{ + *status = dixLookupDrawable(pDrawable, drawable, client, + M_DRAWABLE_WINDOW | M_DRAWABLE_PIXMAP, + access_mode); + if (*status != Success) { + client->errorValue = drawable; + return FALSE; + } + + return TRUE; +} + +static int +ProcDRI2QueryVersion(ClientPtr client) +{ + REQUEST(xDRI2QueryVersionReq); + xDRI2QueryVersionReply rep; + int n; + + if (client->swapped) + swaps(&stuff->length, n); + + REQUEST_SIZE_MATCH(xDRI2QueryVersionReq); + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + rep.majorVersion = dri2_major; + rep.minorVersion = dri2_minor; + + if (client->swapped) { + swaps(&rep.sequenceNumber, n); + swapl(&rep.length, n); + swapl(&rep.majorVersion, n); + swapl(&rep.minorVersion, n); + } + + WriteToClient(client, sizeof(xDRI2QueryVersionReply), &rep); + + return Success; +} + +static int +ProcDRI2Connect(ClientPtr client) +{ + REQUEST(xDRI2ConnectReq); + xDRI2ConnectReply rep; + DrawablePtr pDraw; + int fd, status; + const char *driverName; + const char *deviceName; + + REQUEST_SIZE_MATCH(xDRI2ConnectReq); + if (!validDrawable(client, stuff->window, DixGetAttrAccess, + &pDraw, &status)) + return status; + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + rep.driverNameLength = 0; + rep.deviceNameLength = 0; + + if (!DRI2Connect(pDraw->pScreen, + stuff->driverType, &fd, &driverName, &deviceName)) + goto fail; + + rep.driverNameLength = strlen(driverName); + rep.deviceNameLength = strlen(deviceName); + rep.length = (rep.driverNameLength + 3) / 4 + + (rep.deviceNameLength + 3) / 4; + + fail: + WriteToClient(client, sizeof(xDRI2ConnectReply), &rep); + WriteToClient(client, rep.driverNameLength, driverName); + WriteToClient(client, rep.deviceNameLength, deviceName); + + return Success; +} + +static int +ProcDRI2Authenticate(ClientPtr client) +{ + REQUEST(xDRI2AuthenticateReq); + xDRI2AuthenticateReply rep; + DrawablePtr pDraw; + int status; + + REQUEST_SIZE_MATCH(xDRI2AuthenticateReq); + if (!validDrawable(client, stuff->window, DixGetAttrAccess, + &pDraw, &status)) + return status; + + rep.type = X_Reply; + rep.sequenceNumber = client->sequence; + rep.length = 0; + rep.authenticated = DRI2Authenticate(pDraw->pScreen, stuff->magic); + WriteToClient(client, sizeof(xDRI2AuthenticateReply), &rep); + + return Success; +} + +static void +DRI2InvalidateBuffersEvent(DrawablePtr pDraw, void *priv) +{ + xDRI2InvalidateBuffers event; + ClientPtr client = priv; + + event.type = DRI2EventBase + DRI2_InvalidateBuffers; + event.drawable = pDraw->id; + + WriteEventsToClient(client, 1, (xEvent *)&event); +} + +static int +ProcDRI2CreateDrawable(ClientPtr client) +{ + REQUEST(xDRI2CreateDrawableReq); + DrawablePtr pDrawable; + int status; + + REQUEST_SIZE_MATCH(xDRI2CreateDrawableReq); + + if (!validDrawable(client, stuff->drawable, DixAddAccess, + &pDrawable, &status)) + return status; + + status = DRI2CreateDrawable(client, pDrawable, stuff->drawable, + DRI2InvalidateBuffersEvent, client); + if (status != Success) + return status; + + return Success; +} + +static int +ProcDRI2DestroyDrawable(ClientPtr client) +{ + REQUEST(xDRI2DestroyDrawableReq); + DrawablePtr pDrawable; + int status; + + REQUEST_SIZE_MATCH(xDRI2DestroyDrawableReq); + if (!validDrawable(client, stuff->drawable, DixRemoveAccess, + &pDrawable, &status)) + return status; + + return Success; +} + + +static int +send_buffers_reply(ClientPtr client, DrawablePtr pDrawable, + DRI2BufferPtr *buffers, int count, int width, int height) +{ + xDRI2GetBuffersReply rep; + int skip = 0; + int i; + + if (buffers == NULL) + return BadAlloc; + + if (pDrawable->type == DRAWABLE_WINDOW) { + for (i = 0; i < count; i++) { + /* Do not send the real front buffer of a window to the client. + */ + if (buffers[i]->attachment == DRI2BufferFrontLeft) { + skip++; + continue; + } + } + } + + rep.type = X_Reply; + rep.length = (count - skip) * sizeof(xDRI2Buffer) / 4; + rep.sequenceNumber = client->sequence; + rep.width = width; + rep.height = height; + rep.count = count - skip; + WriteToClient(client, sizeof(xDRI2GetBuffersReply), &rep); + + for (i = 0; i < count; i++) { + xDRI2Buffer buffer; + + /* Do not send the real front buffer of a window to the client. + */ + if ((pDrawable->type == DRAWABLE_WINDOW) + && (buffers[i]->attachment == DRI2BufferFrontLeft)) { + continue; + } + + buffer.attachment = buffers[i]->attachment; + buffer.name = buffers[i]->name; + buffer.pitch = buffers[i]->pitch; + buffer.cpp = buffers[i]->cpp; + buffer.flags = buffers[i]->flags; + WriteToClient(client, sizeof(xDRI2Buffer), &buffer); + } + return Success; +} + + +static int +ProcDRI2GetBuffers(ClientPtr client) +{ + REQUEST(xDRI2GetBuffersReq); + DrawablePtr pDrawable; + DRI2BufferPtr *buffers; + int status, width, height, count; + unsigned int *attachments; + + REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * 4); + if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess, + &pDrawable, &status)) + return status; + + if (DRI2ThrottleClient(client, pDrawable)) + return Success; + + attachments = (unsigned int *) &stuff[1]; + buffers = DRI2GetBuffers(pDrawable, &width, &height, + attachments, stuff->count, &count); + + + return send_buffers_reply(client, pDrawable, buffers, count, width, height); + +} + +static int +ProcDRI2GetBuffersWithFormat(ClientPtr client) +{ + REQUEST(xDRI2GetBuffersReq); + DrawablePtr pDrawable; + DRI2BufferPtr *buffers; + int status, width, height, count; + unsigned int *attachments; + + REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * (2 * 4)); + if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess, + &pDrawable, &status)) + return status; + + if (DRI2ThrottleClient(client, pDrawable)) + return Success; + + attachments = (unsigned int *) &stuff[1]; + buffers = DRI2GetBuffersWithFormat(pDrawable, &width, &height, + attachments, stuff->count, &count); + + return send_buffers_reply(client, pDrawable, buffers, count, width, height); +} + +static int +ProcDRI2CopyRegion(ClientPtr client) +{ + REQUEST(xDRI2CopyRegionReq); + xDRI2CopyRegionReply rep; + DrawablePtr pDrawable; + int status; + RegionPtr pRegion; + + REQUEST_SIZE_MATCH(xDRI2CopyRegionReq); + + if (!validDrawable(client, stuff->drawable, DixWriteAccess, + &pDrawable, &status)) + return status; + + VERIFY_REGION(pRegion, stuff->region, client, DixReadAccess); + + status = DRI2CopyRegion(pDrawable, pRegion, stuff->dest, stuff->src); + if (status != Success) + return status; + + /* CopyRegion needs to be a round trip to make sure the X server + * queues the swap buffer rendering commands before the DRI client + * continues rendering. The reply has a bitmask to signal the + * presense of optional return values as well, but we're not using + * that yet. + */ + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + + WriteToClient(client, sizeof(xDRI2CopyRegionReply), &rep); + + return Success; +} + +static void +load_swap_reply(xDRI2SwapBuffersReply *rep, CARD64 sbc) +{ + rep->swap_hi = sbc >> 32; + rep->swap_lo = sbc & 0xffffffff; +} + +static CARD64 +vals_to_card64(CARD32 lo, CARD32 hi) +{ + return (CARD64)hi << 32 | lo; +} + +static void +DRI2SwapEvent(ClientPtr client, void *data, int type, CARD64 ust, CARD64 msc, + CARD32 sbc) +{ + xDRI2BufferSwapComplete2 event; + DrawablePtr pDrawable = data; + + event.type = DRI2EventBase + DRI2_BufferSwapComplete; + event.event_type = type; + event.drawable = pDrawable->id; + event.ust_hi = (CARD64)ust >> 32; + event.ust_lo = ust & 0xffffffff; + event.msc_hi = (CARD64)msc >> 32; + event.msc_lo = msc & 0xffffffff; + event.sbc = sbc; + + WriteEventsToClient(client, 1, (xEvent *)&event); +} + +static int +ProcDRI2SwapBuffers(ClientPtr client) +{ + REQUEST(xDRI2SwapBuffersReq); + xDRI2SwapBuffersReply rep; + DrawablePtr pDrawable; + CARD64 target_msc, divisor, remainder, swap_target; + int status; + + REQUEST_SIZE_MATCH(xDRI2SwapBuffersReq); + + if (!validDrawable(client, stuff->drawable, + DixReadAccess | DixWriteAccess, &pDrawable, &status)) + return status; + + /* + * Ensures an out of control client can't exhaust our swap queue, and + * also orders swaps. + */ + if (DRI2ThrottleClient(client, pDrawable)) + return Success; + + target_msc = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi); + divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi); + remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi); + + status = DRI2SwapBuffers(client, pDrawable, target_msc, divisor, remainder, + &swap_target, DRI2SwapEvent, pDrawable); + if (status != Success) + return BadDrawable; + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + load_swap_reply(&rep, swap_target); + + WriteToClient(client, sizeof(xDRI2SwapBuffersReply), &rep); + + return Success; +} + +static void +load_msc_reply(xDRI2MSCReply *rep, CARD64 ust, CARD64 msc, CARD64 sbc) +{ + rep->ust_hi = ust >> 32; + rep->ust_lo = ust & 0xffffffff; + rep->msc_hi = msc >> 32; + rep->msc_lo = msc & 0xffffffff; + rep->sbc_hi = sbc >> 32; + rep->sbc_lo = sbc & 0xffffffff; +} + +static int +ProcDRI2GetMSC(ClientPtr client) +{ + REQUEST(xDRI2GetMSCReq); + xDRI2MSCReply rep; + DrawablePtr pDrawable; + CARD64 ust, msc, sbc; + int status; + + REQUEST_SIZE_MATCH(xDRI2GetMSCReq); + + if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable, + &status)) + return status; + + status = DRI2GetMSC(pDrawable, &ust, &msc, &sbc); + if (status != Success) + return status; + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + load_msc_reply(&rep, ust, msc, sbc); + + WriteToClient(client, sizeof(xDRI2MSCReply), &rep); + + return Success; +} + +static int +ProcDRI2WaitMSC(ClientPtr client) +{ + REQUEST(xDRI2WaitMSCReq); + DrawablePtr pDrawable; + CARD64 target, divisor, remainder; + int status; + + /* FIXME: in restart case, client may be gone at this point */ + + REQUEST_SIZE_MATCH(xDRI2WaitMSCReq); + + if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable, + &status)) + return status; + + target = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi); + divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi); + remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi); + + status = DRI2WaitMSC(client, pDrawable, target, divisor, remainder); + if (status != Success) + return status; + + return Success; +} + +int +ProcDRI2WaitMSCReply(ClientPtr client, CARD64 ust, CARD64 msc, CARD64 sbc) +{ + xDRI2MSCReply rep; + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + load_msc_reply(&rep, ust, msc, sbc); + + WriteToClient(client, sizeof(xDRI2MSCReply), &rep); + + return Success; +} + +static int +ProcDRI2SwapInterval(ClientPtr client) +{ + REQUEST(xDRI2SwapIntervalReq); + DrawablePtr pDrawable; + int status; + + /* FIXME: in restart case, client may be gone at this point */ + + REQUEST_SIZE_MATCH(xDRI2SwapIntervalReq); + + if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess, + &pDrawable, &status)) + return status; + + DRI2SwapInterval(pDrawable, stuff->interval); + + return Success; +} + +static int +ProcDRI2WaitSBC(ClientPtr client) +{ + REQUEST(xDRI2WaitSBCReq); + DrawablePtr pDrawable; + CARD64 target; + int status; + + REQUEST_SIZE_MATCH(xDRI2WaitSBCReq); + + if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable, + &status)) + return status; + + target = vals_to_card64(stuff->target_sbc_lo, stuff->target_sbc_hi); + status = DRI2WaitSBC(client, pDrawable, target); + + return status; +} + +static int +ProcDRI2Dispatch (ClientPtr client) +{ + REQUEST(xReq); + + switch (stuff->data) { + case X_DRI2QueryVersion: + return ProcDRI2QueryVersion(client); + } + + if (!LocalClient(client)) + return BadRequest; + + switch (stuff->data) { + case X_DRI2Connect: + return ProcDRI2Connect(client); + case X_DRI2Authenticate: + return ProcDRI2Authenticate(client); + case X_DRI2CreateDrawable: + return ProcDRI2CreateDrawable(client); + case X_DRI2DestroyDrawable: + return ProcDRI2DestroyDrawable(client); + case X_DRI2GetBuffers: + return ProcDRI2GetBuffers(client); + case X_DRI2CopyRegion: + return ProcDRI2CopyRegion(client); + case X_DRI2GetBuffersWithFormat: + return ProcDRI2GetBuffersWithFormat(client); + case X_DRI2SwapBuffers: + return ProcDRI2SwapBuffers(client); + case X_DRI2GetMSC: + return ProcDRI2GetMSC(client); + case X_DRI2WaitMSC: + return ProcDRI2WaitMSC(client); + case X_DRI2WaitSBC: + return ProcDRI2WaitSBC(client); + case X_DRI2SwapInterval: + return ProcDRI2SwapInterval(client); + default: + return BadRequest; + } +} + +static int +SProcDRI2Connect(ClientPtr client) +{ + REQUEST(xDRI2ConnectReq); + xDRI2ConnectReply rep; + int n; + + /* If the client is swapped, it's not local. Talk to the hand. */ + + swaps(&stuff->length, n); + if (sizeof(*stuff) / 4 != client->req_len) + return BadLength; + + rep.sequenceNumber = client->sequence; + swaps(&rep.sequenceNumber, n); + rep.length = 0; + rep.driverNameLength = 0; + rep.deviceNameLength = 0; + + return Success; +} + +static int +SProcDRI2Dispatch (ClientPtr client) +{ + REQUEST(xReq); + + /* + * Only local clients are allowed DRI access, but remote clients + * still need these requests to find out cleanly. + */ + switch (stuff->data) + { + case X_DRI2QueryVersion: + return ProcDRI2QueryVersion(client); + case X_DRI2Connect: + return SProcDRI2Connect(client); + default: + return BadRequest; + } +} + +int DRI2EventBase; + +static void +DRI2ExtensionInit(void) +{ + dri2Extension = AddExtension(DRI2_NAME, + DRI2NumberEvents, + DRI2NumberErrors, + ProcDRI2Dispatch, + SProcDRI2Dispatch, + NULL, + StandardMinorOpcode); + + DRI2EventBase = dri2Extension->eventBase; +} + +extern Bool noDRI2Extension; + +_X_HIDDEN ExtensionModule dri2ExtensionModule = { + DRI2ExtensionInit, + DRI2_NAME, + &noDRI2Extension, + NULL, + NULL +}; |