525 lines
14 KiB
C
525 lines
14 KiB
C
/*
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* Copyright © 2002 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL 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
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include "damageextint.h"
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#include "protocol-versions.h"
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static unsigned char DamageReqCode;
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static int DamageEventBase;
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static int DamageErrorBase;
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static RESTYPE DamageExtType;
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static RESTYPE DamageExtWinType;
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static int DamageClientPrivateKeyIndex;
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static DevPrivateKey DamageClientPrivateKey = &DamageClientPrivateKeyIndex;
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#define prScreen screenInfo.screens[0]
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static void
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DamageExtNotify (DamageExtPtr pDamageExt, BoxPtr pBoxes, int nBoxes)
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{
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ClientPtr pClient = pDamageExt->pClient;
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DamageClientPtr pDamageClient = GetDamageClient (pClient);
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DrawablePtr pDrawable = pDamageExt->pDrawable;
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xDamageNotifyEvent ev;
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int i;
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UpdateCurrentTimeIf ();
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ev.type = DamageEventBase + XDamageNotify;
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ev.level = pDamageExt->level;
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ev.sequenceNumber = pClient->sequence;
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ev.drawable = pDrawable->id;
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ev.damage = pDamageExt->id;
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ev.timestamp = currentTime.milliseconds;
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ev.geometry.x = pDrawable->x;
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ev.geometry.y = pDrawable->y;
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ev.geometry.width = pDrawable->width;
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ev.geometry.height = pDrawable->height;
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if (pBoxes)
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{
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for (i = 0; i < nBoxes; i++)
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{
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ev.level = pDamageExt->level;
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if (i < nBoxes - 1)
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ev.level |= DamageNotifyMore;
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ev.area.x = pBoxes[i].x1;
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ev.area.y = pBoxes[i].y1;
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ev.area.width = pBoxes[i].x2 - pBoxes[i].x1;
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ev.area.height = pBoxes[i].y2 - pBoxes[i].y1;
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if (!pClient->clientGone)
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WriteEventsToClient (pClient, 1, (xEvent *) &ev);
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}
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}
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else
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{
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ev.area.x = 0;
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ev.area.y = 0;
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ev.area.width = pDrawable->width;
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ev.area.height = pDrawable->height;
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if (!pClient->clientGone)
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WriteEventsToClient (pClient, 1, (xEvent *) &ev);
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}
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/* Composite extension marks clients with manual Subwindows as critical */
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if (pDamageClient->critical > 0)
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{
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SetCriticalOutputPending ();
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pClient->smart_priority = SMART_MAX_PRIORITY;
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}
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}
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static void
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DamageExtReport (DamagePtr pDamage, RegionPtr pRegion, void *closure)
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{
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DamageExtPtr pDamageExt = closure;
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switch (pDamageExt->level) {
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case DamageReportRawRegion:
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case DamageReportDeltaRegion:
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DamageExtNotify (pDamageExt, REGION_RECTS(pRegion), REGION_NUM_RECTS(pRegion));
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break;
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case DamageReportBoundingBox:
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DamageExtNotify (pDamageExt, REGION_EXTENTS(prScreen, pRegion), 1);
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break;
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case DamageReportNonEmpty:
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DamageExtNotify (pDamageExt, NullBox, 0);
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break;
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case DamageReportNone:
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break;
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}
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}
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static void
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DamageExtDestroy (DamagePtr pDamage, void *closure)
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{
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DamageExtPtr pDamageExt = closure;
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pDamageExt->pDamage = 0;
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if (pDamageExt->id)
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FreeResource (pDamageExt->id, RT_NONE);
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}
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void
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DamageExtSetCritical (ClientPtr pClient, Bool critical)
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{
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DamageClientPtr pDamageClient = GetDamageClient (pClient);
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if (pDamageClient)
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pDamageClient->critical += critical ? 1 : -1;
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}
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static int
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ProcDamageQueryVersion(ClientPtr client)
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{
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DamageClientPtr pDamageClient = GetDamageClient (client);
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xDamageQueryVersionReply rep;
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register int n;
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REQUEST(xDamageQueryVersionReq);
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REQUEST_SIZE_MATCH(xDamageQueryVersionReq);
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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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if (stuff->majorVersion < SERVER_DAMAGE_MAJOR_VERSION) {
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rep.majorVersion = stuff->majorVersion;
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rep.minorVersion = stuff->minorVersion;
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} else {
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rep.majorVersion = SERVER_DAMAGE_MAJOR_VERSION;
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if (stuff->majorVersion == SERVER_DAMAGE_MAJOR_VERSION &&
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stuff->minorVersion < SERVER_DAMAGE_MINOR_VERSION)
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rep.minorVersion = stuff->minorVersion;
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else
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rep.minorVersion = SERVER_DAMAGE_MINOR_VERSION;
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}
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pDamageClient->major_version = rep.majorVersion;
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pDamageClient->minor_version = rep.minorVersion;
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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(xDamageQueryVersionReply), (char *)&rep);
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return(client->noClientException);
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}
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static int
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ProcDamageCreate (ClientPtr client)
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{
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DrawablePtr pDrawable;
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DamageExtPtr pDamageExt;
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DamageReportLevel level;
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RegionPtr pRegion;
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int rc;
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REQUEST(xDamageCreateReq);
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REQUEST_SIZE_MATCH(xDamageCreateReq);
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LEGAL_NEW_RESOURCE(stuff->damage, client);
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rc = dixLookupDrawable(&pDrawable, stuff->drawable, client, 0,
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DixGetAttrAccess|DixReadAccess);
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if (rc != Success)
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return rc;
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switch (stuff->level) {
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case XDamageReportRawRectangles:
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level = DamageReportRawRegion;
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break;
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case XDamageReportDeltaRectangles:
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level = DamageReportDeltaRegion;
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break;
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case XDamageReportBoundingBox:
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level = DamageReportBoundingBox;
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break;
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case XDamageReportNonEmpty:
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level = DamageReportNonEmpty;
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break;
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default:
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client->errorValue = stuff->level;
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return BadValue;
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}
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pDamageExt = xalloc (sizeof (DamageExtRec));
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if (!pDamageExt)
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return BadAlloc;
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pDamageExt->id = stuff->damage;
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pDamageExt->pDrawable = pDrawable;
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pDamageExt->level = level;
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pDamageExt->pClient = client;
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pDamageExt->pDamage = DamageCreate (DamageExtReport,
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DamageExtDestroy,
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level,
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FALSE,
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pDrawable->pScreen,
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pDamageExt);
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if (!pDamageExt->pDamage)
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{
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xfree (pDamageExt);
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return BadAlloc;
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}
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if (!AddResource (stuff->damage, DamageExtType, (pointer) pDamageExt))
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return BadAlloc;
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DamageRegister (pDamageExt->pDrawable, pDamageExt->pDamage);
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if (pDrawable->type == DRAWABLE_WINDOW)
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{
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pRegion = &((WindowPtr) pDrawable)->borderClip;
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DamageRegionAppend(pDrawable, pRegion);
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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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ProcDamageDestroy (ClientPtr client)
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{
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REQUEST(xDamageDestroyReq);
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DamageExtPtr pDamageExt;
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REQUEST_SIZE_MATCH(xDamageDestroyReq);
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VERIFY_DAMAGEEXT(pDamageExt, stuff->damage, client, DixWriteAccess);
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FreeResource (stuff->damage, RT_NONE);
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return (client->noClientException);
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}
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static int
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ProcDamageSubtract (ClientPtr client)
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{
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REQUEST(xDamageSubtractReq);
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DamageExtPtr pDamageExt;
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RegionPtr pRepair;
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RegionPtr pParts;
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REQUEST_SIZE_MATCH(xDamageSubtractReq);
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VERIFY_DAMAGEEXT(pDamageExt, stuff->damage, client, DixWriteAccess);
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VERIFY_REGION_OR_NONE(pRepair, stuff->repair, client, DixWriteAccess);
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VERIFY_REGION_OR_NONE(pParts, stuff->parts, client, DixWriteAccess);
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if (pDamageExt->level != DamageReportRawRegion)
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{
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DamagePtr pDamage = pDamageExt->pDamage;
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if (pRepair)
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{
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if (pParts)
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REGION_INTERSECT (prScreen, pParts, DamageRegion (pDamage), pRepair);
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if (DamageSubtract (pDamage, pRepair))
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DamageExtReport (pDamage, DamageRegion (pDamage), (void *) pDamageExt);
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}
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else
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{
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if (pParts)
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REGION_COPY (prScreen, pParts, DamageRegion (pDamage));
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DamageEmpty (pDamage);
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}
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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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ProcDamageAdd (ClientPtr client)
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{
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REQUEST(xDamageAddReq);
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DrawablePtr pDrawable;
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RegionPtr pRegion;
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int rc;
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REQUEST_SIZE_MATCH(xDamageAddReq);
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VERIFY_REGION(pRegion, stuff->region, client, DixWriteAccess);
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rc = dixLookupDrawable(&pDrawable, stuff->drawable, client, 0,
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DixWriteAccess);
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if (rc != Success)
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return rc;
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/* The region is relative to the drawable origin, so translate it out to
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* screen coordinates like damage expects.
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*/
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REGION_TRANSLATE(pScreen, pRegion, pDrawable->x, pDrawable->y);
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DamageRegionAppend(pDrawable, pRegion);
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REGION_TRANSLATE(pScreen, pRegion, -pDrawable->x, -pDrawable->y);
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return (client->noClientException);
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}
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/* Major version controls available requests */
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static const int version_requests[] = {
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X_DamageQueryVersion, /* before client sends QueryVersion */
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X_DamageAdd, /* Version 1 */
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};
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#define NUM_VERSION_REQUESTS (sizeof (version_requests) / sizeof (version_requests[0]))
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static int (*ProcDamageVector[XDamageNumberRequests])(ClientPtr) = {
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/*************** Version 1 ******************/
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ProcDamageQueryVersion,
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ProcDamageCreate,
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ProcDamageDestroy,
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ProcDamageSubtract,
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/*************** Version 1.1 ****************/
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ProcDamageAdd,
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};
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static int
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ProcDamageDispatch (ClientPtr client)
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{
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REQUEST(xDamageReq);
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DamageClientPtr pDamageClient = GetDamageClient (client);
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if (pDamageClient->major_version >= NUM_VERSION_REQUESTS)
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return BadRequest;
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if (stuff->damageReqType > version_requests[pDamageClient->major_version])
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return BadRequest;
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return (*ProcDamageVector[stuff->damageReqType]) (client);
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}
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static int
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SProcDamageQueryVersion(ClientPtr client)
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{
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register int n;
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REQUEST(xDamageQueryVersionReq);
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swaps(&stuff->length, n);
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REQUEST_SIZE_MATCH(xDamageQueryVersionReq);
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swapl(&stuff->majorVersion, n);
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swapl(&stuff->minorVersion, n);
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return (*ProcDamageVector[stuff->damageReqType]) (client);
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}
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static int
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SProcDamageCreate (ClientPtr client)
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{
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register int n;
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REQUEST(xDamageCreateReq);
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swaps (&stuff->length, n);
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REQUEST_SIZE_MATCH(xDamageCreateReq);
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swapl (&stuff->damage, n);
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swapl (&stuff->drawable, n);
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return (*ProcDamageVector[stuff->damageReqType]) (client);
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}
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static int
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SProcDamageDestroy (ClientPtr client)
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{
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register int n;
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REQUEST(xDamageDestroyReq);
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swaps (&stuff->length, n);
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REQUEST_SIZE_MATCH(xDamageDestroyReq);
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swapl (&stuff->damage, n);
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return (*ProcDamageVector[stuff->damageReqType]) (client);
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}
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static int
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SProcDamageSubtract (ClientPtr client)
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{
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register int n;
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REQUEST(xDamageSubtractReq);
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swaps (&stuff->length, n);
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REQUEST_SIZE_MATCH(xDamageSubtractReq);
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swapl (&stuff->damage, n);
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swapl (&stuff->repair, n);
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swapl (&stuff->parts, n);
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return (*ProcDamageVector[stuff->damageReqType]) (client);
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}
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static int
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SProcDamageAdd (ClientPtr client)
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{
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register int n;
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REQUEST(xDamageAddReq);
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swaps (&stuff->length, n);
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REQUEST_SIZE_MATCH(xDamageSubtractReq);
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swapl (&stuff->drawable, n);
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swapl (&stuff->region, n);
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return (*ProcDamageVector[stuff->damageReqType]) (client);
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}
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static int (*SProcDamageVector[XDamageNumberRequests])(ClientPtr) = {
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/*************** Version 1 ******************/
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SProcDamageQueryVersion,
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SProcDamageCreate,
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SProcDamageDestroy,
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SProcDamageSubtract,
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/*************** Version 1.1 ****************/
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SProcDamageAdd,
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};
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static int
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SProcDamageDispatch (ClientPtr client)
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{
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REQUEST(xDamageReq);
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if (stuff->damageReqType >= XDamageNumberRequests)
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return BadRequest;
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return (*SProcDamageVector[stuff->damageReqType]) (client);
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}
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static void
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DamageClientCallback (CallbackListPtr *list,
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pointer closure,
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pointer data)
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{
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NewClientInfoRec *clientinfo = (NewClientInfoRec *) data;
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ClientPtr pClient = clientinfo->client;
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DamageClientPtr pDamageClient = GetDamageClient (pClient);
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pDamageClient->critical = 0;
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pDamageClient->major_version = 0;
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pDamageClient->minor_version = 0;
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}
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/*ARGSUSED*/
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static void
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DamageResetProc (ExtensionEntry *extEntry)
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{
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DeleteCallback (&ClientStateCallback, DamageClientCallback, 0);
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}
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static int
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FreeDamageExt (pointer value, XID did)
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{
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DamageExtPtr pDamageExt = (DamageExtPtr) value;
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/*
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* Get rid of the resource table entry hanging from the window id
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*/
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pDamageExt->id = 0;
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if (WindowDrawable(pDamageExt->pDrawable->type))
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FreeResourceByType (pDamageExt->pDrawable->id, DamageExtWinType, TRUE);
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if (pDamageExt->pDamage)
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{
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DamageUnregister (pDamageExt->pDrawable, pDamageExt->pDamage);
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DamageDestroy (pDamageExt->pDamage);
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}
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xfree (pDamageExt);
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return Success;
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}
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static int
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FreeDamageExtWin (pointer value, XID wid)
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{
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DamageExtPtr pDamageExt = (DamageExtPtr) value;
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if (pDamageExt->id)
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FreeResource (pDamageExt->id, RT_NONE);
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return Success;
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}
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static void
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SDamageNotifyEvent (xDamageNotifyEvent *from,
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xDamageNotifyEvent *to)
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{
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to->type = from->type;
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cpswaps (from->sequenceNumber, to->sequenceNumber);
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cpswapl (from->drawable, to->drawable);
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cpswapl (from->damage, to->damage);
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cpswaps (from->area.x, to->area.x);
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cpswaps (from->area.y, to->area.y);
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cpswaps (from->area.width, to->area.width);
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cpswaps (from->area.height, to->area.height);
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cpswaps (from->geometry.x, to->geometry.x);
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cpswaps (from->geometry.y, to->geometry.y);
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cpswaps (from->geometry.width, to->geometry.width);
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cpswaps (from->geometry.height, to->geometry.height);
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}
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void
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DamageExtensionInit(void)
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{
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ExtensionEntry *extEntry;
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int s;
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for (s = 0; s < screenInfo.numScreens; s++)
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DamageSetup (screenInfo.screens[s]);
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DamageExtType = CreateNewResourceType (FreeDamageExt, "DamageExt");
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if (!DamageExtType)
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return;
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DamageExtWinType = CreateNewResourceType (FreeDamageExtWin, "DamageExtWin");
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if (!DamageExtWinType)
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return;
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if (!dixRequestPrivate(DamageClientPrivateKey, sizeof (DamageClientRec)))
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return;
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if (!AddCallback (&ClientStateCallback, DamageClientCallback, 0))
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return;
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if ((extEntry = AddExtension(DAMAGE_NAME, XDamageNumberEvents,
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XDamageNumberErrors,
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ProcDamageDispatch, SProcDamageDispatch,
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DamageResetProc, StandardMinorOpcode)) != 0)
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{
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DamageReqCode = (unsigned char)extEntry->base;
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DamageEventBase = extEntry->eventBase;
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DamageErrorBase = extEntry->errorBase;
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EventSwapVector[DamageEventBase + XDamageNotify] =
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(EventSwapPtr) SDamageNotifyEvent;
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}
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}
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