495 lines
14 KiB
C
495 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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#include "extinit.h"
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static unsigned char DamageReqCode;
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static int DamageEventBase;
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static RESTYPE DamageExtType;
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static DevPrivateKeyRec DamageClientPrivateKeyRec;
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#define DamageClientPrivateKey (&DamageClientPrivateKeyRec)
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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 = (xDamageNotifyEvent) {
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.type = DamageEventBase + XDamageNotify,
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.level = pDamageExt->level,
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.drawable = pDamageExt->drawable,
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.damage = pDamageExt->id,
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.timestamp = currentTime.milliseconds,
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.geometry.x = pDrawable->x,
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.geometry.y = pDrawable->y,
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.geometry.width = pDrawable->width,
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.geometry.height = pDrawable->height
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};
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if (pBoxes) {
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for (i = 0; i < nBoxes; i++) {
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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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WriteEventsToClient(pClient, 1, (xEvent *) &ev);
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}
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}
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else {
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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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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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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, RegionRects(pRegion),
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RegionNumRects(pRegion));
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break;
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case DamageReportBoundingBox:
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DamageExtNotify(pDamageExt, RegionExtents(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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.type = X_Reply,
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.sequenceNumber = client->sequence,
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.length = 0
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};
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REQUEST(xDamageQueryVersionReq);
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REQUEST_SIZE_MATCH(xDamageQueryVersionReq);
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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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}
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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);
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swapl(&rep.length);
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swapl(&rep.majorVersion);
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swapl(&rep.minorVersion);
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}
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WriteToClient(client, sizeof(xDamageQueryVersionReply), &rep);
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return Success;
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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 = malloc(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->drawable = stuff->drawable;
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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, pDrawable->pScreen, pDamageExt);
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if (!pDamageExt->pDamage) {
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free(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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DamageSetReportAfterOp(pDamageExt->pDamage, TRUE);
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DamageRegister(pDamageExt->pDrawable, pDamageExt->pDamage);
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if (pDrawable->type == DRAWABLE_WINDOW) {
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pRegion = &((WindowPtr) pDrawable)->borderClip;
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RegionTranslate(pRegion, -pDrawable->x, -pDrawable->y);
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DamageReportDamage(pDamageExt->pDamage, pRegion);
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RegionTranslate(pRegion, pDrawable->x, pDrawable->y);
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}
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return Success;
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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 Success;
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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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DamagePtr pDamage = pDamageExt->pDamage;
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if (pRepair) {
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if (pParts)
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RegionIntersect(pParts, DamageRegion(pDamage), pRepair);
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if (DamageSubtract(pDamage, pRepair))
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DamageExtReport(pDamage, DamageRegion(pDamage),
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(void *) pDamageExt);
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}
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else {
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if (pParts)
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RegionCopy(pParts, DamageRegion(pDamage));
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DamageEmpty(pDamage);
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}
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}
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return Success;
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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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RegionTranslate(pRegion, pDrawable->x, pDrawable->y);
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DamageDamageRegion(pDrawable, pRegion);
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RegionTranslate(pRegion, -pDrawable->x, -pDrawable->y);
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return Success;
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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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REQUEST(xDamageQueryVersionReq);
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swaps(&stuff->length);
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REQUEST_SIZE_MATCH(xDamageQueryVersionReq);
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swapl(&stuff->majorVersion);
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swapl(&stuff->minorVersion);
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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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REQUEST(xDamageCreateReq);
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swaps(&stuff->length);
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REQUEST_SIZE_MATCH(xDamageCreateReq);
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swapl(&stuff->damage);
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swapl(&stuff->drawable);
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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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REQUEST(xDamageDestroyReq);
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swaps(&stuff->length);
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REQUEST_SIZE_MATCH(xDamageDestroyReq);
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swapl(&stuff->damage);
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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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REQUEST(xDamageSubtractReq);
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swaps(&stuff->length);
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REQUEST_SIZE_MATCH(xDamageSubtractReq);
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swapl(&stuff->damage);
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swapl(&stuff->repair);
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swapl(&stuff->parts);
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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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REQUEST(xDamageAddReq);
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swaps(&stuff->length);
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REQUEST_SIZE_MATCH(xDamageSubtractReq);
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swapl(&stuff->drawable);
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swapl(&stuff->region);
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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, pointer closure, 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*/ 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 (pDamageExt->pDamage) {
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DamageDestroy(pDamageExt->pDamage);
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}
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free(pDamageExt);
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return Success;
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}
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static void
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SDamageNotifyEvent(xDamageNotifyEvent * from, 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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if (!dixRegisterPrivateKey
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(&DamageClientPrivateKeyRec, PRIVATE_CLIENT, 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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DamageReqCode = (unsigned char) extEntry->base;
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DamageEventBase = extEntry->eventBase;
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EventSwapVector[DamageEventBase + XDamageNotify] =
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(EventSwapPtr) SDamageNotifyEvent;
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SetResourceTypeErrorValue(DamageExtType,
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extEntry->errorBase + BadDamage);
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}
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}
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