diff options
Diffstat (limited to 'xorg-server/Xext/mbuf.c')
| -rw-r--r-- | xorg-server/Xext/mbuf.c | 2014 |
1 files changed, 0 insertions, 2014 deletions
diff --git a/xorg-server/Xext/mbuf.c b/xorg-server/Xext/mbuf.c deleted file mode 100644 index aacb9cfde..000000000 --- a/xorg-server/Xext/mbuf.c +++ /dev/null @@ -1,2014 +0,0 @@ -/************************************************************ - -Copyright 1989, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of The Open Group shall not be -used in advertising or otherwise to promote the sale, use or other dealings -in this Software without prior written authorization from The Open Group. - -********************************************************/ - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <X11/X.h> -#include <X11/Xproto.h> -#include "window.h" -#include "os.h" -#include "windowstr.h" -#include "scrnintstr.h" -#include "pixmapstr.h" -#include "gcstruct.h" -#include "extnsionst.h" -#include "dixstruct.h" -#include "resource.h" -#include "opaque.h" -#include "sleepuntil.h" -#include "inputstr.h" -#include <X11/extensions/multibufconst.h> -#include <X11/extensions/multibufproto.h> - -#include <stdio.h> -#if !defined(WIN32) -#include <sys/time.h> -#endif - -/* given an OtherClientPtr obj, get the ClientPtr */ -#define rClient(obj) (clients[CLIENT_ID((obj)->resource)]) - -/* given a MultibufferPtr b, get the ClientPtr */ -#define bClient(b) (clients[CLIENT_ID(b->pPixmap->drawable.id)]) - -#define ValidEventMasks (ExposureMask|MultibufferClobberNotifyMask|MultibufferUpdateNotifyMask) - -/* The _Multibuffer and _Multibuffers structures below refer to each other, - * so we need this forward declaration - */ -typedef struct _Multibuffers *MultibuffersPtr; - -/* - * per-Multibuffer data - */ -typedef struct _Multibuffer { - MultibuffersPtr pMultibuffers; /* associated window data */ - Mask eventMask; /* MultibufferClobberNotifyMask|ExposureMask|MultibufferUpdateNotifyMask */ - Mask otherEventMask; /* mask of all other clients event masks */ - OtherClients *otherClients; /* other clients that want events */ - int number; /* index of this buffer into array */ - int side; /* always Mono */ - int clobber; /* Unclobbered, PartiallyClobbered, FullClobbered */ - PixmapPtr pPixmap; /* associated pixmap */ -} MultibufferRec, *MultibufferPtr; - -/* - * per-window data - */ - -typedef struct _Multibuffers { - WindowPtr pWindow; /* associated window */ - int numMultibuffer; /* count of buffers */ - int refcnt; /* ref count for delete */ - int displayedMultibuffer; /* currently active buffer */ - int updateAction; /* Undefined, Background, Untouched, Copied */ - int updateHint; /* Frequent, Intermittent, Static */ - int windowMode; /* always Mono */ - - TimeStamp lastUpdate; /* time of last update */ - - unsigned short width, height; /* last known window size */ - short x, y; /* for static gravity */ - - MultibufferPtr buffers; /* array of numMultibuffer buffers */ -} MultibuffersRec; - -/* - * per-screen data - */ -typedef struct _MultibufferScreen { - PositionWindowProcPtr PositionWindow; /* pWin, x,y */ -} MultibufferScreenRec, *MultibufferScreenPtr; - -/* - * per display-image-buffers request data. - */ - -typedef struct _DisplayRequest { - struct _DisplayRequest *next; - TimeStamp activateTime; - ClientPtr pClient; - XID id; -} DisplayRequestRec, *DisplayRequestPtr; - -#define DestroyWindowMask (1L<<0) -#define PositionWindowMask (1L<<1) -#define PostValidateTreeMask (1L<<2) -#define ClipNotifyMask (1L<<3) -#define WindowExposuresMask (1L<<4) -#define CopyWindowMask (1L<<5) -#define ClearToBackgroundMask (1L<<6) -#define ChangeWindowAttributesMask (1L<<7) - -extern int MultibufferScreenIndex; -extern int MultibufferWindowIndex; - -extern RESTYPE MultibufferDrawableResType; - -extern void MultibufferUpdate( /* pMbuffer, time */ - MultibufferPtr /* pMultibuffer */, - CARD32 /* time */ - ); -extern void MultibufferExpose( /* pMbuffer, pRegion */ - MultibufferPtr /* pMultibuffer */, - RegionPtr /* pRegion */ - ); -extern void MultibufferClobber( /* pMbuffer */ - MultibufferPtr /* pMultibuffer */ - ); - -typedef struct _mbufWindow *mbufWindowPtr; - -void DestroyImageBuffers (WindowPtr pWin); - -/* - * per-buffer data - */ - -#define MB_DISPLAYED_BUFFER(pMBWindow) \ - ((pMBWindow)->buffers + (pMBWindow)->displayedMultibuffer) - -typedef struct _mbufBuffer { - mbufWindowPtr pMBWindow; /* associated window data */ - Mask eventMask; /* client event mask */ - Mask otherEventMask; /* union of other clients' event masks */ - OtherClientsPtr otherClients; /* other clients that want events */ - int number; /* index of this buffer into array */ - int side; /* stero side: always Mono */ - int clobber; /* clober state */ - DrawablePtr pDrawable; /* associated drawable */ -} mbufBufferRec, *mbufBufferPtr; - - -/* - * per-window data - */ - -#define MB_WINDOW_PRIV(pWin) \ - ((mbufWindowPtr)((pWin)->devPrivates[MultibufferWindowIndex].ptr)) - -typedef struct _mbufWindow { - WindowPtr pWindow; /* associated window */ - int numMultibuffer; /* count of buffers */ - mbufBufferPtr buffers; /* array of (numMultibuffer) buffers */ - int displayedMultibuffer; /* currently active buffer */ - int updateAction; /* Undefined, Background, - Untouched, Copied */ - int updateHint; /* Frequent, Intermittent, Static */ - int windowMode; /* always Mono */ - TimeStamp lastUpdate; /* time of last update */ - short x, y; /* for static gravity */ - unsigned short width, height; /* last known window size */ - DevUnion devPrivate; -} mbufWindowRec; - - -/* - * per-screen data - */ - -#define MB_SCREEN_PRIV(pScreen) \ - ((mbufScreenPtr)((pScreen)->devPrivates[MultibufferScreenIndex].ptr)) - -typedef struct _mbufScreen { - long mbufWindowCount; /* count of multibuffered windows */ - - /* Wrap pScreen->DestroyWindow */ - DestroyWindowProcPtr DestroyWindow; - long funcsWrapped; /* flags which functions are wrapped */ - - /* Initialized by device-dependent section */ - int nInfo; /* number of buffer info rec's */ - xMbufBufferInfo *pInfo; /* buffer info (for Normal buffers) */ - - int (* CreateImageBuffers)( - WindowPtr /* pWin */, - int /* nbuf */, - XID * /* ids */, - int /* action */, - int /* hint */ - ); - void (* DestroyImageBuffers)( - WindowPtr /* pWin */ - ); - void (* DisplayImageBuffers)( - ScreenPtr /* pScreen */, - mbufBufferPtr * /* ppMBBuffer */, - mbufWindowPtr * /* ppMBWindow */, - int /* nbuf */ - ); - void (* ClearImageBufferArea)( - mbufBufferPtr /* pMBBuffer */, - short /* x */, - short /* y */, - unsigned short /* width */, - unsigned short /* height */, - Bool /* exposures */ - ); - Bool (* ChangeMBufferAttributes)( /* pMBWindow, vmask */ - /* FIXME */ - ); - Bool (* ChangeBufferAttributes)( /* pMBBuffer, vmask */ - /* FIXME */ - ); - void (* DeleteBufferDrawable)( - DrawablePtr /* pDrawable */ - ); - void (* WrapScreenFuncs)( - ScreenPtr /* pScreen */ - ); - void (* ResetProc)( - ScreenPtr /* pScreen */ - ); - DevUnion devPrivate; -} mbufScreenRec, *mbufScreenPtr; - - -/* Privates to mbufScreenRec */ - -#ifdef _MULTIBUF_PIXMAP_ -#define MB_SCREEN_PRIV_PIXMAP(pScreen) \ - ((mbufPixmapPrivPtr) MB_SCREEN_PRIV((pScreen))->devPrivate.ptr) - -typedef struct _mbufPixmapPriv -{ - /* Pointers to wrapped functions */ - PositionWindowProcPtr PositionWindow; /* pWin, x,y */ - long funcsWrapped; /* flags which functions are wrapped */ -} mbufPixmapPrivRec, *mbufPixmapPrivPtr; -#endif /* _MULTIBUF_PIXMAP_ */ - - -#ifdef _MULTIBUF_BUFFER_ - -extern int frameWindowPrivateIndex; - -#define MB_SCREEN_PRIV_BUFFER(pScreen) \ - ((mbufBufferPrivPtr) MB_SCREEN_PRIV((pScreen))->devPrivate.ptr) - -typedef struct _mbufBufferPriv -{ - DevUnion *frameBuffer; /* Array of screen framebuffers */ - DevUnion selectPlane; /* Plane(s) that select displayed buffer */ - - /* - * Note: subtractRgn and unionRgn may overlap. subtractRgn is a union - * of all the old clipLists of the windows that are displaying - * the backbuffer. unionRgn is the union of all the new clipLists - * of the same windows. - */ - - RegionRec backBuffer; /* Area of screen displaying back buffer */ - RegionRec subtractRgn; /* Regions lost to backBuffer */ - RegionRec unionRgn; /* Regions gained by backBuffer */ - Bool rgnChanged; /* TRUE if "backBuffer" needs to be updated */ - - void (* CopyBufferBits)(); /* pMBWindow, srcBufferNum, dstBufferNum */ - void (* DrawSelectPlane)(); /* pScreen, selectPlane, pRegion, bufferNum */ - - /* Pointers to wrapped functions */ - PostValidateTreeProcPtr PostValidateTree; /* pParent, pChild, kind */ - ClipNotifyProcPtr ClipNotify; /* pWin, dx, dy */ - WindowExposuresProcPtr WindowExposures; /* pWin, pRegion */ - CopyWindowProcPtr CopyWindow; /* pWin, oldPt, pOldRegion */ - ClearToBackgroundProcPtr ClearToBackground; /* pWin, x,y,w,h, sendExpose */ - ChangeWindowAttributesProcPtr ChangeWindowAttributes; /* pWin, vmask */ - long funcsWrapped; /* flags which functions are wrapped */ - unsigned inClearToBackground:1; /* used by WindowExposure */ -} mbufBufferPrivRec, *mbufBufferPrivPtr; -#endif /* _MULTIBUF_BUFFER_ */ - -static int MultibufferEventBase; -static int MultibufferErrorBase; -static int MultibufferScreenPrivKeyIndex; -static DevPrivateKey MultibufferScreenPrivKey = &MultibufferScreenPrivKeyIndex; -static int MultibufferWindowPrivKeyIndex; -static DevPrivateKey MultibufferWindowPrivKey = &MultibufferWindowPrivKeyIndex; - -static void PerformDisplayRequest ( - MultibuffersPtr * /* ppMultibuffers */, - MultibufferPtr * /* pMultibuffer */, - int /* nbuf */ - ); -static Bool QueueDisplayRequest ( - ClientPtr /* client */, - TimeStamp /* activateTime */ - ); - -static void BumpTimeStamp ( - TimeStamp * /* ts */, - CARD32 /* inc */ - ); - -static void AliasMultibuffer ( - MultibuffersPtr /* pMultibuffers */, - int /* i */ - ); -static void RecalculateMultibufferOtherEvents ( - MultibufferPtr /* pMultibuffer */ - ); -static int EventSelectForMultibuffer( - MultibufferPtr /* pMultibuffer */, - ClientPtr /* client */, - Mask /* mask */ - ); - -/* - * The Pixmap associated with a buffer can be found as a resource - * with this type - */ -RESTYPE MultibufferDrawableResType; -static int MultibufferDrawableDelete ( - pointer /* value */, - XID /* id */ - ); -/* - * The per-buffer data can be found as a resource with this type. - * the resource id of the per-buffer data is the same as the resource - * id of the pixmap - */ -static RESTYPE MultibufferResType; -static int MultibufferDelete ( - pointer /* value */, - XID /* id */ - ); - -/* - * The per-window data can be found as a resource with this type, - * using the window resource id - */ -static RESTYPE MultibuffersResType; -static int MultibuffersDelete ( - pointer /* value */, - XID /* id */ - ); - -/* - * Clients other than the buffer creator attach event masks in - * OtherClient structures; each has a resource of this type. - */ -static RESTYPE OtherClientResType; -static int OtherClientDelete ( - pointer /* value */, - XID /* id */ - ); - -/**************** - * MultibufferExtensionInit - * - * Called from InitExtensions in main() - * - ****************/ - -extern DISPATCH_PROC(ProcGetBufferAttributes); - -static DISPATCH_PROC(ProcClearImageBufferArea); -static DISPATCH_PROC(ProcCreateImageBuffers); -static DISPATCH_PROC(ProcDestroyImageBuffers); -static DISPATCH_PROC(ProcDisplayImageBuffers); -static DISPATCH_PROC(ProcGetBufferInfo); -static DISPATCH_PROC(ProcGetBufferVersion); -static DISPATCH_PROC(ProcGetMBufferAttributes); -static DISPATCH_PROC(ProcMultibufferDispatch); -static DISPATCH_PROC(ProcSetBufferAttributes); -static DISPATCH_PROC(ProcSetMBufferAttributes); -static DISPATCH_PROC(SProcClearImageBufferArea); -static DISPATCH_PROC(SProcCreateImageBuffers); -static DISPATCH_PROC(SProcDestroyImageBuffers); -static DISPATCH_PROC(SProcDisplayImageBuffers); -static DISPATCH_PROC(SProcGetBufferAttributes); -static DISPATCH_PROC(SProcGetBufferInfo); -static DISPATCH_PROC(SProcGetBufferVersion); -static DISPATCH_PROC(SProcGetMBufferAttributes); -static DISPATCH_PROC(SProcMultibufferDispatch); -static DISPATCH_PROC(SProcSetBufferAttributes); -static DISPATCH_PROC(SProcSetMBufferAttributes); - -static void MultibufferResetProc( - ExtensionEntry * /* extEntry */ - ); -static void SClobberNotifyEvent( - xMbufClobberNotifyEvent * /* from */, - xMbufClobberNotifyEvent * /* to */ - ); -static void SUpdateNotifyEvent( - xMbufUpdateNotifyEvent * /* from */, - xMbufUpdateNotifyEvent * /* to */ - ); -static Bool MultibufferPositionWindow( - WindowPtr /* pWin */, - int /* x */, - int /* y */ - ); - -static void SetupBackgroundPainter ( - WindowPtr /* pWin */, - GCPtr /* pGC */ - ); - -static int DeliverEventsToMultibuffer ( - MultibufferPtr /* pMultibuffer */, - xEvent * /* pEvents */, - int /* count */, - Mask /* filter */ - ); - -void -MultibufferExtensionInit() -{ - ExtensionEntry *extEntry; - int i, j; - ScreenPtr pScreen; - MultibufferScreenPtr pMultibufferScreen; - - for (i = 0; i < screenInfo.numScreens; i++) - { - pScreen = screenInfo.screens[i]; - if (!(pMultibufferScreen = xalloc (sizeof (MultibufferScreenRec)))) - { - for (j = 0; j < i; j++) - xfree (dixLookupPrivate(&screenInfo.screens[j]->devPrivates, MultibufferScreenPrivKey)); - return; - } - dixSetPrivate(&pScreen->devPrivates, MultibufferScreenPrivKey, pMultibufferScreen); - /* - * wrap PositionWindow to resize the pixmap when the window - * changes size - */ - pMultibufferScreen->PositionWindow = pScreen->PositionWindow; - pScreen->PositionWindow = MultibufferPositionWindow; - } - /* - * create the resource types - */ - MultibufferDrawableResType = - CreateNewResourceType(MultibufferDrawableDelete, "MultibufferDrawable"); - if (MultiBufferDrawableResType) - MultibufferDrawableResType |= RC_DRAWABLE; - MultibufferResType = CreateNewResourceType(MultibufferDelete, - "MultibufferBuffer"); - MultibuffersResType = CreateNewResourceType(MultibuffersDelete, - "MultibufferWindow"); - OtherClientResType = CreateNewResourceType(OtherClientDelete, - "MultibufferOtherClient"); - if (MultibufferDrawableResType && MultibufferResType && - MultibuffersResType && OtherClientResType && - (extEntry = AddExtension(MULTIBUFFER_PROTOCOL_NAME, - MultibufferNumberEvents, - MultibufferNumberErrors, - ProcMultibufferDispatch, SProcMultibufferDispatch, - MultibufferResetProc, StandardMinorOpcode))) - { - MultibufferEventBase = extEntry->eventBase; - MultibufferErrorBase = extEntry->errorBase; - EventSwapVector[MultibufferEventBase + MultibufferClobberNotify] = (EventSwapPtr) SClobberNotifyEvent; - EventSwapVector[MultibufferEventBase + MultibufferUpdateNotify] = (EventSwapPtr) SUpdateNotifyEvent; - } -} - -/*ARGSUSED*/ -static void -MultibufferResetProc (extEntry) -ExtensionEntry *extEntry; -{ - int i; - ScreenPtr pScreen; - MultibufferScreenPtr pMultibufferScreen; - - for (i = 0; i < screenInfo.numScreens; i++) - { - pScreen = screenInfo.screens[i]; - if ((pMultibufferScreen = (MultibufferScreenPtr)dixLookupPrivate(&pScreen->devPrivates, MultibufferScreenPrivKey))) - { - pScreen->PositionWindow = pMultibufferScreen->PositionWindow; - xfree (pMultibufferScreen); - } - } -} - -static int -ProcGetBufferVersion (client) - ClientPtr client; -{ - xMbufGetBufferVersionReply rep; - int n; - - REQUEST_SIZE_MATCH (xMbufGetBufferVersionReq); - rep.type = X_Reply; - rep.length = 0; - rep.sequenceNumber = client->sequence; - rep.majorVersion = MULTIBUFFER_MAJOR_VERSION; - rep.minorVersion = MULTIBUFFER_MINOR_VERSION; - if (client->swapped) { - swaps(&rep.sequenceNumber, n); - swapl(&rep.length, n); - } - WriteToClient(client, sizeof (xMbufGetBufferVersionReply), (char *)&rep); - return (client->noClientException); -} - -static void -SetupBackgroundPainter (pWin, pGC) - WindowPtr pWin; - GCPtr pGC; -{ - pointer gcvalues[4]; - int ts_x_origin, ts_y_origin; - PixUnion background; - int backgroundState; - Mask gcmask; - - /* - * First take care of any ParentRelative stuff by altering the - * tile/stipple origin to match the coordinates of the upper-left - * corner of the first ancestor without a ParentRelative background. - * This coordinate is, of course, negative. - */ - - ts_x_origin = ts_y_origin = 0; - while (pWin->backgroundState == ParentRelative) { - ts_x_origin -= pWin->origin.x; - ts_y_origin -= pWin->origin.y; - pWin = pWin->parent; - } - backgroundState = pWin->backgroundState; - background = pWin->background; - - switch (backgroundState) - { - case BackgroundPixel: - gcvalues[0] = (pointer) background.pixel; - gcvalues[1] = (pointer) FillSolid; - gcmask = GCForeground|GCFillStyle; - break; - - case BackgroundPixmap: - gcvalues[0] = (pointer) FillTiled; - gcvalues[1] = (pointer) background.pixmap; - gcvalues[2] = (pointer)(long) ts_x_origin; - gcvalues[3] = (pointer)(long) ts_y_origin; - gcmask = GCFillStyle|GCTile|GCTileStipXOrigin|GCTileStipYOrigin; - break; - - default: - gcvalues[0] = (pointer) GXnoop; - gcmask = GCFunction; - } - DoChangeGC(pGC, gcmask, (XID *)gcvalues, TRUE); -} - -int -CreateImageBuffers (pWin, nbuf, ids, action, hint) - WindowPtr pWin; - int nbuf; - XID *ids; - int action; - int hint; -{ - MultibuffersPtr pMultibuffers; - MultibufferPtr pMultibuffer; - ScreenPtr pScreen; - int width, height, depth; - int i; - GCPtr pClearGC = NULL; - xRectangle clearRect; - - DestroyImageBuffers(pWin); - pMultibuffers = xalloc (sizeof (MultibuffersRec) + nbuf * sizeof (MultibufferRec)); - if (!pMultibuffers) - return BadAlloc; - pMultibuffers->pWindow = pWin; - pMultibuffers->buffers = (MultibufferPtr) (pMultibuffers + 1); - pMultibuffers->refcnt = pMultibuffers->numMultibuffer = 0; - if (!AddResource (pWin->drawable.id, MultibuffersResType, (pointer) pMultibuffers)) - return BadAlloc; - width = pWin->drawable.width; - height = pWin->drawable.height; - depth = pWin->drawable.depth; - pScreen = pWin->drawable.pScreen; - - if (pWin->backgroundState != None) - { - pClearGC = GetScratchGC (pWin->drawable.depth, pScreen); - SetupBackgroundPainter (pWin, pClearGC); - clearRect.x = clearRect.y = 0; - clearRect.width = width; - clearRect.height = height; - } - - for (i = 0; i < nbuf; i++) - { - pMultibuffer = &pMultibuffers->buffers[i]; - pMultibuffer->eventMask = 0L; - pMultibuffer->otherEventMask = 0L; - pMultibuffer->otherClients = (OtherClientsPtr) NULL; - pMultibuffer->number = i; - pMultibuffer->side = MultibufferSideMono; - pMultibuffer->clobber = MultibufferUnclobbered; - pMultibuffer->pMultibuffers = pMultibuffers; - if (!AddResource (ids[i], MultibufferResType, (pointer) pMultibuffer)) - break; - pMultibuffer->pPixmap = (*pScreen->CreatePixmap) (pScreen, width, height, depth, 0); - if (!pMultibuffer->pPixmap) - break; - if (!AddResource (ids[i], MultibufferDrawableResType, (pointer) pMultibuffer->pPixmap)) - { - FreeResource (ids[i], MultibufferResType); - (*pScreen->DestroyPixmap) (pMultibuffer->pPixmap); - break; - } - pMultibuffer->pPixmap->drawable.id = ids[i]; - - if (i > 0 && pClearGC) - { - ValidateGC((DrawablePtr)pMultibuffer->pPixmap, pClearGC); - (*pClearGC->ops->PolyFillRect)((DrawablePtr)pMultibuffer->pPixmap, - pClearGC, 1, &clearRect); - } - } - pMultibuffers->numMultibuffer = i; - pMultibuffers->refcnt = i; - pMultibuffers->displayedMultibuffer = -1; - if (i > 0) - AliasMultibuffer (pMultibuffers, 0); - pMultibuffers->updateAction = action; - pMultibuffers->updateHint = hint; - pMultibuffers->windowMode = MultibufferModeMono; - pMultibuffers->lastUpdate.months = 0; - pMultibuffers->lastUpdate.milliseconds = 0; - pMultibuffers->width = width; - pMultibuffers->height = height; - dixSetPrivate(&pWin->devPrivates, MultibufferWindowPrivKey, pMultibuffers); - if (pClearGC) FreeScratchGC(pClearGC); - return Success; -} - - -static int -ProcCreateImageBuffers (client) - ClientPtr client; -{ - REQUEST(xMbufCreateImageBuffersReq); - xMbufCreateImageBuffersReply rep; - int n; - WindowPtr pWin; - XID *ids; - int len, nbuf, i, err, rc; - - REQUEST_AT_LEAST_SIZE (xMbufCreateImageBuffersReq); - len = stuff->length - bytes_to_int32(sizeof(xMbufCreateImageBuffersReq)); - if (len == 0) - return BadLength; - rc = dixLookupWindow(&pWin, stuff->window, client, DixUnknownAccess); - if (rc != Success) - return rc; - if (pWin->drawable.class == InputOnly) - return BadMatch; - switch (stuff->updateAction) - { - case MultibufferUpdateActionUndefined: - case MultibufferUpdateActionBackground: - case MultibufferUpdateActionUntouched: - case MultibufferUpdateActionCopied: - break; - default: - client->errorValue = stuff->updateAction; - return BadValue; - } - switch (stuff->updateHint) - { - case MultibufferUpdateHintFrequent: - case MultibufferUpdateHintIntermittent: - case MultibufferUpdateHintStatic: - break; - default: - client->errorValue = stuff->updateHint; - return BadValue; - } - nbuf = len; - ids = (XID *) &stuff[1]; - for (i = 0; i < nbuf; i++) - { - LEGAL_NEW_RESOURCE(ids[i], client); - } - err = CreateImageBuffers (pWin, nbuf, ids, - stuff->updateAction, stuff->updateHint); - if (err != Success) - return err; - rep.type = X_Reply; - rep.length = 0; - rep.sequenceNumber = client->sequence; - rep.numberBuffer = ((MultibuffersPtr) (dixLookupPrivate(&pWin->devPrivates, MultibufferWindowPrivKey)))->numMultibuffer; - if (client->swapped) - { - swaps(&rep.sequenceNumber, n); - swapl(&rep.length, n); - swaps(&rep.numberBuffer, n); - } - WriteToClient(client, sizeof (xMbufCreateImageBuffersReply), (char*)&rep); - return (client->noClientException); -} - -static int -ProcDisplayImageBuffers (client) - ClientPtr client; -{ - REQUEST(xMbufDisplayImageBuffersReq); - MultibufferPtr *pMultibuffer; - MultibuffersPtr *ppMultibuffers; - int nbuf; - XID *ids; - int i, j; - CARD32 minDelay; - TimeStamp activateTime, bufferTime; - int rc; - - - REQUEST_AT_LEAST_SIZE (xMbufDisplayImageBuffersReq); - nbuf = stuff->length - bytes_to_int32(sizeof (xMbufDisplayImageBuffersReq)); - if (!nbuf) - return Success; - minDelay = stuff->minDelay; - ids = (XID *) &stuff[1]; - ppMultibuffers = xalloc(nbuf * sizeof (MultibuffersPtr)); - pMultibuffer = xalloc(nbuf * sizeof (MultibufferPtr)); - if (!ppMultibuffers || !pMultibuffer) - { - if (ppMultibuffers) xfree(ppMultibuffers); - if (pMultibuffer) xfree(pMultibuffer); - client->errorValue = 0; - return BadAlloc; - } - activateTime.months = 0; - activateTime.milliseconds = 0; - for (i = 0; i < nbuf; i++) - { - rc = dixLookupResourceByType(&pMultibuffer[i], ids[i], - MultibufferResType, client, DixUseAccess); - if (rc != Success) - { - xfree(ppMultibuffers); - xfree(pMultibuffer); - client->errorValue = ids[i]; - return MultibufferErrorBase + MultibufferBadBuffer; - } - ppMultibuffers[i] = pMultibuffer[i]->pMultibuffers; - for (j = 0; j < i; j++) - { - if (ppMultibuffers[i] == ppMultibuffers[j]) - { - xfree(ppMultibuffers); - xfree(pMultibuffer); - client->errorValue = ids[i]; - return BadMatch; - } - } - bufferTime = ppMultibuffers[i]->lastUpdate; - BumpTimeStamp (&bufferTime, minDelay); - if (CompareTimeStamps (bufferTime, activateTime) == LATER) - activateTime = bufferTime; - } - UpdateCurrentTime (); - if (CompareTimeStamps (activateTime, currentTime) == LATER && - QueueDisplayRequest (client, activateTime)) - { - ; - } - else - PerformDisplayRequest (ppMultibuffers, pMultibuffer, nbuf); - - xfree(ppMultibuffers); - xfree(pMultibuffer); - return Success; -} - - -static int -ProcDestroyImageBuffers (client) - ClientPtr client; -{ - REQUEST (xMbufDestroyImageBuffersReq); - WindowPtr pWin; - int rc; - - REQUEST_SIZE_MATCH (xMbufDestroyImageBuffersReq); - rc = dixLookupWindow(&pWin, stuff->window, client, DixUnknownAccess); - if (rc != Success) - return rc; - DestroyImageBuffers (pWin); - return Success; -} - -static int -ProcSetMBufferAttributes (client) - ClientPtr client; -{ - REQUEST (xMbufSetMBufferAttributesReq); - WindowPtr pWin; - MultibuffersPtr pMultibuffers; - int len, rc; - Mask vmask; - Mask index2; - CARD32 updateHint; - XID *vlist; - - REQUEST_AT_LEAST_SIZE (xMbufSetMBufferAttributesReq); - rc = dixLookupWindow(&pWin, stuff->window, client, DixUnknownAccess); - if (rc != Success) - return rc; - rc = dixLookupResourceByType(&pMultibuffers, pWin->drawable.id, - MultibufferResType, client, DixSetAttrAccess); - if (rc != Success) - return BadMatch; - len = stuff->length - bytes_to_int32(sizeof (xMbufSetMBufferAttributesReq)); - vmask = stuff->valueMask; - if (len != Ones (vmask)) - return BadLength; - vlist = (XID *) &stuff[1]; - while (vmask) - { - index2 = (Mask) lowbit (vmask); - vmask &= ~index2; - switch (index2) - { - case MultibufferWindowUpdateHint: - updateHint = (CARD32) *vlist; - switch (updateHint) - { - case MultibufferUpdateHintFrequent: - case MultibufferUpdateHintIntermittent: - case MultibufferUpdateHintStatic: - pMultibuffers->updateHint = updateHint; - break; - default: - client->errorValue = updateHint; - return BadValue; - } - vlist++; - break; - default: - client->errorValue = stuff->valueMask; - return BadValue; - } - } - return Success; -} - -static int -ProcGetMBufferAttributes (client) - ClientPtr client; -{ - REQUEST (xMbufGetMBufferAttributesReq); - WindowPtr pWin; - MultibuffersPtr pMultibuffers; - XID *ids; - xMbufGetMBufferAttributesReply rep; - int i, n, rc; - - REQUEST_SIZE_MATCH (xMbufGetMBufferAttributesReq); - rc = dixLookupWindow(&pWin, stuff->window, client, DixUnknownAccess); - if (rc != Success) - return rc; - rc = dixLookupResourceByType(&pMultibuffers, pWin->drawable.id, - MultibufferResType, client, DixGetAttrAccess); - if (rc != Success) - return BadAccess; - ids = xalloc (pMultibuffers->numMultibuffer * sizeof (XID)); - if (!ids) - return BadAlloc; - for (i = 0; i < pMultibuffers->numMultibuffer; i++) - ids[i] = pMultibuffers->buffers[i].pPixmap->drawable.id; - rep.type = X_Reply; - rep.sequenceNumber = client->sequence; - rep.length = pMultibuffers->numMultibuffer; - rep.displayedBuffer = pMultibuffers->displayedMultibuffer; - rep.updateAction = pMultibuffers->updateAction; - rep.updateHint = pMultibuffers->updateHint; - rep.windowMode = pMultibuffers->windowMode; - if (client->swapped) - { - swaps(&rep.sequenceNumber, n); - swapl(&rep.length, n); - swaps(&rep.displayedBuffer, n); - SwapLongs (ids, pMultibuffers->numMultibuffer); - } - WriteToClient (client, sizeof(xMbufGetMBufferAttributesReply), - (char *)&rep); - WriteToClient (client, (int)(pMultibuffers->numMultibuffer * sizeof (XID)), - (char *)ids); - xfree((pointer) ids); - return client->noClientException; -} - -static int -ProcSetBufferAttributes (client) - ClientPtr client; -{ - REQUEST(xMbufSetBufferAttributesReq); - MultibufferPtr pMultibuffer; - int len; - Mask vmask, index2; - XID *vlist; - Mask eventMask; - int result; - int rc; - - REQUEST_AT_LEAST_SIZE (xMbufSetBufferAttributesReq); - - rc = dixLookupResourceByType(&pMultibuffer, stuff->buffer, - MultibufferResType, client, DixSetAttrAccess); - if (rc != Success) - return MultibufferErrorBase + MultibufferBadBuffer; - len = stuff->length - bytes_to_int32(sizeof (xMbufSetBufferAttributesReq)); - vmask = stuff->valueMask; - if (len != Ones (vmask)) - return BadLength; - vlist = (XID *) &stuff[1]; - while (vmask) - { - index2 = (Mask) lowbit (vmask); - vmask &= ~index2; - switch (index2) - { - case MultibufferBufferEventMask: - eventMask = (Mask) *vlist; - vlist++; - result = EventSelectForMultibuffer (pMultibuffer, client, eventMask); - if (result != Success) - return result; - break; - default: - client->errorValue = stuff->valueMask; - return BadValue; - } - } - return Success; -} - -int -ProcGetBufferAttributes (client) - ClientPtr client; -{ - REQUEST(xMbufGetBufferAttributesReq); - MultibufferPtr pMultibuffer; - xMbufGetBufferAttributesReply rep; - OtherClientsPtr other; - int n; - int rc; - - REQUEST_SIZE_MATCH (xMbufGetBufferAttributesReq); - rc = dixLookupResourceByType(&pMultibuffer, stuff->buffer, - MultibufferResType, client, DixGetAttrAccess); - if (rc != Success) - return MultibufferErrorBase + MultibufferBadBuffer; - rep.type = X_Reply; - rep.sequenceNumber = client->sequence; - rep.length = 0; - rep.window = pMultibuffer->pMultibuffers->pWindow->drawable.id; - if (bClient (pMultibuffer) == client) - rep.eventMask = pMultibuffer->eventMask; - else - { - rep.eventMask = (Mask) 0L; - for (other = pMultibuffer->otherClients; other; other = other->next) - if (SameClient (other, client)) - { - rep.eventMask = other->mask; - break; - } - } - rep.bufferIndex = pMultibuffer->number; - rep.side = pMultibuffer->side; - if (client->swapped) - { - swaps(&rep.sequenceNumber, n); - swapl(&rep.length, n); - swapl(&rep.window, n); - swapl(&rep.eventMask, n); - swaps(&rep.bufferIndex, n); - } - WriteToClient(client, sizeof (xMbufGetBufferAttributesReply), (char *)&rep); - return (client->noClientException); -} - -static int -ProcGetBufferInfo (client) - ClientPtr client; -{ - REQUEST (xMbufGetBufferInfoReq); - DrawablePtr pDrawable; - xMbufGetBufferInfoReply rep; - ScreenPtr pScreen; - int i, j, k, n, rc; - xMbufBufferInfo *pInfo; - int nInfo; - DepthPtr pDepth; - - rc = dixLookupDrawable(&pDrawable, stuff->drawable, client, 0, - DixUnknownAccess); - if (rc != Success) - return rc; - pScreen = pDrawable->pScreen; - nInfo = 0; - for (i = 0; i < pScreen->numDepths; i++) - { - pDepth = &pScreen->allowedDepths[i]; - nInfo += pDepth->numVids; - } - pInfo = xalloc (nInfo * sizeof (xMbufBufferInfo)); - if (!pInfo) - return BadAlloc; - - rep.type = X_Reply; - rep.sequenceNumber = client->sequence; - rep.length = nInfo * bytes_to_int32(sizeof (xMbufBufferInfo)); - rep.normalInfo = nInfo; - rep.stereoInfo = 0; - if (client->swapped) - { - swaps(&rep.sequenceNumber, n); - swapl(&rep.length, n); - swaps(&rep.normalInfo, n); - swaps(&rep.stereoInfo, n); - } - - k = 0; - for (i = 0; i < pScreen->numDepths; i++) - { - pDepth = &pScreen->allowedDepths[i]; - for (j = 0; j < pDepth->numVids; j++) - { - pInfo[k].visualID = pDepth->vids[j]; - pInfo[k].maxBuffers = 0; - pInfo[k].depth = pDepth->depth; - if (client->swapped) - { - swapl (&pInfo[k].visualID, n); - swaps (&pInfo[k].maxBuffers, n); - } - k++; - } - } - WriteToClient (client, sizeof (xMbufGetBufferInfoReply), (pointer) &rep); - WriteToClient (client, (int) nInfo * sizeof (xMbufBufferInfo), (pointer) pInfo); - xfree ((pointer) pInfo); - return client->noClientException; -} - -static int -ProcClearImageBufferArea (client) - ClientPtr client; -{ - REQUEST (xMbufClearImageBufferAreaReq); - MultibufferPtr pMultibuffer; - WindowPtr pWin; - xRectangle clearRect; - int width, height; - DrawablePtr pDrawable; - ScreenPtr pScreen; - int rc; - - REQUEST_SIZE_MATCH (xMbufClearImageBufferAreaReq); - rc = dixLookupResourceByType(&pMultibuffer, stuff->buffer, - MultibufferResType, client, DixWriteAccess); - if (rc != Success) - return MultibufferErrorBase + MultibufferBadBuffer; - if ((stuff->exposures != xTrue) && (stuff->exposures != xFalse)) - { - client->errorValue = stuff->exposures; - return(BadValue); - } - pWin = pMultibuffer->pMultibuffers->pWindow; - width = pWin->drawable.width; - height = pWin->drawable.height; - pScreen = pWin->drawable.pScreen; - - clearRect.x = stuff->x; - clearRect.y = stuff->y; - clearRect.width = stuff->width ? stuff->width : width; - clearRect.height = stuff->height ? stuff->height : height; - - if (pWin->backgroundState != None) - { - GCPtr pClearGC; - pClearGC = GetScratchGC (pWin->drawable.depth, pScreen); - SetupBackgroundPainter (pWin, pClearGC); - - if (pMultibuffer->number == pMultibuffer->pMultibuffers->displayedMultibuffer) - pDrawable = (DrawablePtr)pWin; - else - pDrawable = (DrawablePtr)pMultibuffer->pPixmap; - - ValidateGC(pDrawable, pClearGC); - (*pClearGC->ops->PolyFillRect) (pDrawable, pClearGC, 1, &clearRect); - FreeScratchGC(pClearGC); - } - - if (stuff->exposures) - { - RegionRec region; - BoxRec box; - box.x1 = clearRect.x; - box.y1 = clearRect.y; - box.x2 = clearRect.x + clearRect.width; - box.y2 = clearRect.y + clearRect.height; - REGION_INIT(pScreen, ®ion, &box, 1); - MultibufferExpose(pMultibuffer, ®ion); - REGION_UNINIT(pScreen, ®ion); - } - return Success; -} - -static int -ProcMultibufferDispatch (client) - ClientPtr client; -{ - REQUEST(xReq); - switch (stuff->data) { - case X_MbufGetBufferVersion: - return ProcGetBufferVersion (client); - case X_MbufCreateImageBuffers: - return ProcCreateImageBuffers (client); - case X_MbufDisplayImageBuffers: - return ProcDisplayImageBuffers (client); - case X_MbufDestroyImageBuffers: - return ProcDestroyImageBuffers (client); - case X_MbufSetMBufferAttributes: - return ProcSetMBufferAttributes (client); - case X_MbufGetMBufferAttributes: - return ProcGetMBufferAttributes (client); - case X_MbufSetBufferAttributes: - return ProcSetBufferAttributes (client); - case X_MbufGetBufferAttributes: - return ProcGetBufferAttributes (client); - case X_MbufGetBufferInfo: - return ProcGetBufferInfo (client); - case X_MbufClearImageBufferArea: - return ProcClearImageBufferArea (client); - default: - return BadRequest; - } -} - -static int -SProcGetBufferVersion (client) - ClientPtr client; -{ - int n; - REQUEST (xMbufGetBufferVersionReq); - - swaps (&stuff->length, n); - return ProcGetBufferVersion (client); -} - -static int -SProcCreateImageBuffers (client) - ClientPtr client; -{ - int n; - REQUEST (xMbufCreateImageBuffersReq); - - swaps (&stuff->length, n); - REQUEST_AT_LEAST_SIZE (xMbufCreateImageBuffersReq); - swapl (&stuff->window, n); - SwapRestL(stuff); - return ProcCreateImageBuffers (client); -} - -static int -SProcDisplayImageBuffers (client) - ClientPtr client; -{ - int n; - REQUEST (xMbufDisplayImageBuffersReq); - - swaps (&stuff->length, n); - REQUEST_AT_LEAST_SIZE (xMbufDisplayImageBuffersReq); - swaps (&stuff->minDelay, n); - swaps (&stuff->maxDelay, n); - SwapRestL(stuff); - return ProcDisplayImageBuffers (client); -} - -static int -SProcDestroyImageBuffers (client) - ClientPtr client; -{ - int n; - REQUEST (xMbufDestroyImageBuffersReq); - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH (xMbufDestroyImageBuffersReq); - swapl (&stuff->window, n); - return ProcDestroyImageBuffers (client); -} - -static int -SProcSetMBufferAttributes (client) - ClientPtr client; -{ - int n; - REQUEST (xMbufSetMBufferAttributesReq); - - swaps (&stuff->length, n); - REQUEST_AT_LEAST_SIZE(xMbufSetMBufferAttributesReq); - swapl (&stuff->window, n); - swapl (&stuff->valueMask, n); - SwapRestL(stuff); - return ProcSetMBufferAttributes (client); -} - -static int -SProcGetMBufferAttributes (client) - ClientPtr client; -{ - int n; - REQUEST (xMbufGetMBufferAttributesReq); - - swaps (&stuff->length, n); - REQUEST_AT_LEAST_SIZE(xMbufGetMBufferAttributesReq); - swapl (&stuff->window, n); - return ProcGetMBufferAttributes (client); -} - -static int -SProcSetBufferAttributes (client) - ClientPtr client; -{ - int n; - REQUEST (xMbufSetBufferAttributesReq); - - swaps (&stuff->length, n); - REQUEST_AT_LEAST_SIZE(xMbufSetBufferAttributesReq); - swapl (&stuff->buffer, n); - swapl (&stuff->valueMask, n); - SwapRestL(stuff); - return ProcSetBufferAttributes (client); -} - -static int -SProcGetBufferAttributes (client) - ClientPtr client; -{ - int n; - REQUEST (xMbufGetBufferAttributesReq); - - swaps (&stuff->length, n); - REQUEST_AT_LEAST_SIZE(xMbufGetBufferAttributesReq); - swapl (&stuff->buffer, n); - return ProcGetBufferAttributes (client); -} - -static int -SProcGetBufferInfo (client) - ClientPtr client; -{ - int n; - REQUEST (xMbufGetBufferInfoReq); - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH (xMbufGetBufferInfoReq); - swapl (&stuff->drawable, n); - return ProcGetBufferInfo (client); -} - -static int -SProcClearImageBufferArea(client) - ClientPtr client; -{ - char n; - REQUEST(xMbufClearImageBufferAreaReq); - - swaps(&stuff->length, n); - REQUEST_SIZE_MATCH (xMbufClearImageBufferAreaReq); - swapl(&stuff->buffer, n); - swaps(&stuff->x, n); - swaps(&stuff->y, n); - swaps(&stuff->width, n); - swaps(&stuff->height, n); - return ProcClearImageBufferArea(client); -} - -static int -SProcMultibufferDispatch (client) - ClientPtr client; -{ - REQUEST(xReq); - switch (stuff->data) { - case X_MbufGetBufferVersion: - return SProcGetBufferVersion (client); - case X_MbufCreateImageBuffers: - return SProcCreateImageBuffers (client); - case X_MbufDisplayImageBuffers: - return SProcDisplayImageBuffers (client); - case X_MbufDestroyImageBuffers: - return SProcDestroyImageBuffers (client); - case X_MbufSetMBufferAttributes: - return SProcSetMBufferAttributes (client); - case X_MbufGetMBufferAttributes: - return SProcGetMBufferAttributes (client); - case X_MbufSetBufferAttributes: - return SProcSetBufferAttributes (client); - case X_MbufGetBufferAttributes: - return SProcGetBufferAttributes (client); - case X_MbufGetBufferInfo: - return SProcGetBufferInfo (client); - case X_MbufClearImageBufferArea: - return SProcClearImageBufferArea (client); - default: - return BadRequest; - } -} - -static void -SUpdateNotifyEvent (from, to) - xMbufUpdateNotifyEvent *from, *to; -{ - to->type = from->type; - cpswaps (from->sequenceNumber, to->sequenceNumber); - cpswapl (from->buffer, to->buffer); - cpswapl (from->timeStamp, to->timeStamp); -} - -static void -SClobberNotifyEvent (from, to) - xMbufClobberNotifyEvent *from, *to; -{ - to->type = from->type; - cpswaps (from->sequenceNumber, to->sequenceNumber); - cpswapl (from->buffer, to->buffer); - to->state = from->state; -} - -RegionPtr CreateUnclippedWinSize(WindowPtr pWin); - -RegionPtr -CreateUnclippedWinSize (WindowPtr pWin) -{ - RegionPtr pRgn; - BoxRec box; - - box.x1 = pWin->drawable.x; - box.y1 = pWin->drawable.y; - box.x2 = pWin->drawable.x + (int) pWin->drawable.width; - box.y2 = pWin->drawable.y + (int) pWin->drawable.height; - pRgn = REGION_CREATE(pWin->drawable.pScreen, &box, 1); - if (wBoundingShape (pWin) || wClipShape (pWin)) { - ScreenPtr pScreen; - pScreen = pWin->drawable.pScreen; - - REGION_TRANSLATE(pScreen, pRgn, - pWin->drawable.x, - - pWin->drawable.y); - if (wBoundingShape (pWin)) - REGION_INTERSECT(pScreen, pRgn, pRgn, wBoundingShape (pWin)); - if (wClipShape (pWin)) - REGION_INTERSECT(pScreen, pRgn, pRgn, wClipShape (pWin)); - REGION_TRANSLATE(pScreen, pRgn, pWin->drawable.x, pWin->drawable.y); - } - return pRgn; -} - -static void -PerformDisplayRequest (ppMultibuffers, pMultibuffer, nbuf) - MultibufferPtr *pMultibuffer; - MultibuffersPtr *ppMultibuffers; - int nbuf; -{ - GCPtr pGC; - PixmapPtr pPrevPixmap, pNewPixmap; - xRectangle clearRect; - WindowPtr pWin; - RegionPtr pExposed; - int i; - MultibufferPtr pPrevMultibuffer; - XID graphicsExpose; - - UpdateCurrentTime (); - for (i = 0; i < nbuf; i++) - { - pWin = ppMultibuffers[i]->pWindow; - pGC = GetScratchGC (pWin->drawable.depth, pWin->drawable.pScreen); - pPrevMultibuffer = - &ppMultibuffers[i]->buffers[ppMultibuffers[i]->displayedMultibuffer]; - pPrevPixmap = pPrevMultibuffer->pPixmap; - pNewPixmap = pMultibuffer[i]->pPixmap; - switch (ppMultibuffers[i]->updateAction) - { - case MultibufferUpdateActionUndefined: - break; - case MultibufferUpdateActionBackground: - SetupBackgroundPainter (pWin, pGC); - ValidateGC ((DrawablePtr)pPrevPixmap, pGC); - clearRect.x = 0; - clearRect.y = 0; - clearRect.width = pPrevPixmap->drawable.width; - clearRect.height = pPrevPixmap->drawable.height; - (*pGC->ops->PolyFillRect) ((DrawablePtr)pPrevPixmap, pGC, - 1, &clearRect); - break; - case MultibufferUpdateActionUntouched: - /* copy the window to the pixmap that represents the - * currently displayed buffer - */ - if (pPrevMultibuffer->eventMask & ExposureMask) - { - graphicsExpose = TRUE; - DoChangeGC (pGC, GCGraphicsExposures, &graphicsExpose, FALSE); - } - ValidateGC ((DrawablePtr)pPrevPixmap, pGC); - pExposed = (*pGC->ops->CopyArea) - ((DrawablePtr) pWin, - (DrawablePtr) pPrevPixmap, - pGC, - 0, 0, - pWin->drawable.width, pWin->drawable.height, - 0, 0); - - /* if we couldn't copy the whole window to the buffer, - * send expose events (if any client wants them) - */ - if (pPrevMultibuffer->eventMask & ExposureMask) - { /* some client wants expose events */ - if (pExposed) - { - RegionPtr pWinSize; - - pWinSize = CreateUnclippedWinSize (pWin); - /* pExposed is window-relative, but at this point - * pWinSize is screen-relative. Make pWinSize be - * window-relative so that region ops involving - * pExposed and pWinSize behave sensibly. - */ - REGION_TRANSLATE(pWin->drawable.pScreen, pWinSize, - -pWin->drawable.x, -pWin->drawable.y); - REGION_INTERSECT(pWin->drawable.pScreen, pExposed, - pExposed, pWinSize); - REGION_DESTROY(pWin->drawable.pScreen, pWinSize); - MultibufferExpose (pPrevMultibuffer, pExposed); - REGION_DESTROY(pWin->drawable.pScreen, pExposed); - } - graphicsExpose = FALSE; - DoChangeGC (pGC, GCGraphicsExposures, &graphicsExpose, FALSE); - } - break; /* end case MultibufferUpdateActionUntouched */ - - case MultibufferUpdateActionCopied: - ValidateGC ((DrawablePtr)pPrevPixmap, pGC); - (*pGC->ops->CopyArea) ((DrawablePtr)pNewPixmap, - (DrawablePtr)pPrevPixmap, pGC, - 0, 0, - pWin->drawable.width, pWin->drawable.height, - 0, 0); - break; - } /* end switch on update action */ - - /* display the new buffer */ - ValidateGC ((DrawablePtr)pWin, pGC); - (*pGC->ops->CopyArea) ((DrawablePtr)pNewPixmap, (DrawablePtr)pWin, pGC, - 0, 0, - pWin->drawable.width, pWin->drawable.height, - 0, 0); - ppMultibuffers[i]->lastUpdate = currentTime; - MultibufferUpdate (pMultibuffer[i], - ppMultibuffers[i]->lastUpdate.milliseconds); - AliasMultibuffer (ppMultibuffers[i], - pMultibuffer[i] - ppMultibuffers[i]->buffers); - FreeScratchGC (pGC); - } -} - -DrawablePtr -GetBufferPointer (pWin, i) - WindowPtr pWin; - int i; -{ - MultibuffersPtr pMultibuffers; - - if (!(pMultibuffers = (MultibuffersPtr) dixLookupPrivate(&pWin->devPrivates, MultibufferWindowPrivKey))) - return NULL; - return (DrawablePtr) pMultibuffers->buffers[i].pPixmap; -} - -static Bool -QueueDisplayRequest (client, activateTime) - ClientPtr client; - TimeStamp activateTime; -{ - /* see xtest.c:ProcXTestFakeInput for code similar to this */ - - if (!ClientSleepUntil(client, &activateTime, NULL, NULL)) - { - return FALSE; - } - /* swap the request back so we can simply re-execute it */ - if (client->swapped) - { - int n; - REQUEST (xMbufDisplayImageBuffersReq); - - SwapRestL(stuff); - swaps (&stuff->length, n); - swaps (&stuff->minDelay, n); - swaps (&stuff->maxDelay, n); - } - ResetCurrentRequest (client); - client->sequence--; - return TRUE; -} - - -/* - * Deliver events to a buffer - */ - -static int -DeliverEventsToMultibuffer (pMultibuffer, pEvents, count, filter) - MultibufferPtr pMultibuffer; - xEvent *pEvents; - int count; - Mask filter; -{ - int deliveries = 0, nondeliveries = 0; - int attempt; - OtherClients *other; - - /* if nobody wants the event, we're done */ - if (!((pMultibuffer->otherEventMask|pMultibuffer->eventMask) & filter)) - return 0; - - /* maybe send event to owner */ - if ((attempt = TryClientEvents( - bClient(pMultibuffer), NULL, pEvents, count, pMultibuffer->eventMask, filter, (GrabPtr) 0)) != 0) - { - if (attempt > 0) - deliveries++; - else - nondeliveries--; - } - - /* maybe send event to other clients */ - for (other = pMultibuffer->otherClients; other; other=other->next) - { - if ((attempt = TryClientEvents( - rClient(other), NULL, pEvents, count, other->mask, filter, (GrabPtr) 0)) != 0) - { - if (attempt > 0) - deliveries++; - else - nondeliveries--; - } - } - if (deliveries) - return deliveries; - return nondeliveries; -} - -/* - * Send Expose events to interested clients - */ - -void -MultibufferExpose (pMultibuffer, pRegion) - MultibufferPtr pMultibuffer; - RegionPtr pRegion; -{ - if (pRegion && !REGION_NIL(pRegion)) - { - xEvent *pEvent; - PixmapPtr pPixmap; - xEvent *pe; - BoxPtr pBox; - int i; - int numRects; - - pPixmap = pMultibuffer->pPixmap; - REGION_TRANSLATE(pPixmap->drawable.pScreen, pRegion, - -pPixmap->drawable.x, -pPixmap->drawable.y); - /* XXX MultibufferExpose "knows" the region representation */ - numRects = REGION_NUM_RECTS(pRegion); - pBox = REGION_RECTS(pRegion); - - pEvent = xalloc(numRects * sizeof(xEvent)); - if (pEvent) { - pe = pEvent; - - for (i=1; i<=numRects; i++, pe++, pBox++) - { - pe->u.u.type = Expose; - pe->u.expose.window = pPixmap->drawable.id; - pe->u.expose.x = pBox->x1; - pe->u.expose.y = pBox->y1; - pe->u.expose.width = pBox->x2 - pBox->x1; - pe->u.expose.height = pBox->y2 - pBox->y1; - pe->u.expose.count = (numRects - i); - } - (void) DeliverEventsToMultibuffer (pMultibuffer, pEvent, numRects, - ExposureMask); - xfree(pEvent); - } - } -} - -/* send UpdateNotify event */ -void -MultibufferUpdate (pMultibuffer, time2) - MultibufferPtr pMultibuffer; - CARD32 time2; -{ - xMbufUpdateNotifyEvent event; - - event.type = MultibufferEventBase + MultibufferUpdateNotify; - event.buffer = pMultibuffer->pPixmap->drawable.id; - event.timeStamp = time2; - (void) DeliverEventsToMultibuffer (pMultibuffer, (xEvent *)&event, - 1, (Mask)MultibufferUpdateNotifyMask); -} - -/* - * The sample implementation will never generate MultibufferClobberNotify - * events - */ - -void -MultibufferClobber (pMultibuffer) - MultibufferPtr pMultibuffer; -{ - xMbufClobberNotifyEvent event; - - event.type = MultibufferEventBase + MultibufferClobberNotify; - event.buffer = pMultibuffer->pPixmap->drawable.id; - event.state = pMultibuffer->clobber; - (void) DeliverEventsToMultibuffer (pMultibuffer, (xEvent *)&event, - 1, (Mask)MultibufferClobberNotifyMask); -} - -/* - * make the resource id for buffer i refer to the window - * drawable instead of the pixmap; - */ - -static void -AliasMultibuffer (pMultibuffers, i) - MultibuffersPtr pMultibuffers; - int i; -{ - MultibufferPtr pMultibuffer; - - if (i == pMultibuffers->displayedMultibuffer) - return; - /* - * remove the old association - */ - if (pMultibuffers->displayedMultibuffer >= 0) - { - pMultibuffer = &pMultibuffers->buffers[pMultibuffers->displayedMultibuffer]; - ChangeResourceValue (pMultibuffer->pPixmap->drawable.id, - MultibufferDrawableResType, - (pointer) pMultibuffer->pPixmap); - } - /* - * make the new association - */ - pMultibuffer = &pMultibuffers->buffers[i]; - ChangeResourceValue (pMultibuffer->pPixmap->drawable.id, - MultibufferDrawableResType, - (pointer) pMultibuffers->pWindow); - pMultibuffers->displayedMultibuffer = i; -} - -/* - * free everything associated with multibuffering for this - * window - */ - -void -DestroyImageBuffers (pWin) - WindowPtr pWin; -{ - FreeResourceByType (pWin->drawable.id, MultibuffersResType, FALSE); - /* Zero out the window's pointer to the buffers so they won't be reused */ - dixSetPrivate(&pWin->devPrivates, MultibufferWindowPrivKey, NULL); -} - -/* - * resize the buffers when the window is resized - */ - -static Bool -MultibufferPositionWindow (pWin, x, y) - WindowPtr pWin; - int x, y; -{ - ScreenPtr pScreen; - MultibufferScreenPtr pMultibufferScreen; - MultibuffersPtr pMultibuffers; - MultibufferPtr pMultibuffer; - int width, height; - int i; - int dx, dy, dw, dh; - int sourcex, sourcey; - int destx, desty; - PixmapPtr pPixmap; - GCPtr pGC; - int savewidth, saveheight; - xRectangle clearRect; - Bool clear; - - pScreen = pWin->drawable.pScreen; - pMultibufferScreen = (MultibufferScreenPtr) dixLookupPrivate(&pScreen->devPrivates, MultibufferScreenPrivKey); - (*pMultibufferScreen->PositionWindow) (pWin, x, y); - - /* if this window is not multibuffered, we're done */ - if (!(pMultibuffers = (MultibuffersPtr) dixLookupPrivate(&pWin->devPrivates, MultibufferWindowPrivKey))) - return TRUE; - - /* if new size is same as old, we're done */ - if (pMultibuffers->width == pWin->drawable.width && - pMultibuffers->height == pWin->drawable.height) - return TRUE; - - width = pWin->drawable.width; - height = pWin->drawable.height; - dx = pWin->drawable.x - pMultibuffers->x; - dy = pWin->drawable.x - pMultibuffers->y; - dw = width - pMultibuffers->width; - dh = height - pMultibuffers->height; - GravityTranslate (0, 0, -dx, -dy, dw, dh, - pWin->bitGravity, &destx, &desty); - - /* if the window grew, remember to paint the window background, - * and maybe send expose events, for the new areas of the buffers - */ - clear = pMultibuffers->width < width || pMultibuffers->height < height || - pWin->bitGravity == ForgetGravity; - - sourcex = 0; - sourcey = 0; - savewidth = pMultibuffers->width; - saveheight = pMultibuffers->height; - /* clip rectangle to source and destination */ - if (destx < 0) - { - savewidth += destx; - sourcex -= destx; - destx = 0; - } - if (destx + savewidth > width) - savewidth = width - destx; - if (desty < 0) - { - saveheight += desty; - sourcey -= desty; - desty = 0; - } - if (desty + saveheight > height) - saveheight = height - desty; - - pMultibuffers->width = width; - pMultibuffers->height = height; - pMultibuffers->x = pWin->drawable.x; - pMultibuffers->y = pWin->drawable.y; - - pGC = GetScratchGC (pWin->drawable.depth, pScreen); - if (clear) - { - SetupBackgroundPainter (pWin, pGC); - clearRect.x = 0; - clearRect.y = 0; - clearRect.width = width; - clearRect.height = height; - } - for (i = 0; i < pMultibuffers->numMultibuffer; i++) - { - pMultibuffer = &pMultibuffers->buffers[i]; - pPixmap = (*pScreen->CreatePixmap) (pScreen, width, height, - pWin->drawable.depth, - CREATE_PIXMAP_USAGE_SCRATCH); - if (!pPixmap) - { - DestroyImageBuffers (pWin); - break; - } - ValidateGC ((DrawablePtr)pPixmap, pGC); - /* - * I suppose this could avoid quite a bit of work if - * it computed the minimal area required. - */ - if (clear) - (*pGC->ops->PolyFillRect) ((DrawablePtr)pPixmap, pGC, 1, &clearRect); - if (pWin->bitGravity != ForgetGravity) - { - (*pGC->ops->CopyArea) ((DrawablePtr)pMultibuffer->pPixmap, - (DrawablePtr)pPixmap, pGC, - sourcex, sourcey, savewidth, saveheight, - destx, desty); - } - pPixmap->drawable.id = pMultibuffer->pPixmap->drawable.id; - (*pScreen->DestroyPixmap) (pMultibuffer->pPixmap); - pMultibuffer->pPixmap = pPixmap; - if (i != pMultibuffers->displayedMultibuffer) - { - ChangeResourceValue (pPixmap->drawable.id, - MultibufferDrawableResType, - (pointer) pPixmap); - } - } - FreeScratchGC (pGC); - return TRUE; -} - -/* Resource delete func for MultibufferDrawableResType */ -/*ARGSUSED*/ -static int -MultibufferDrawableDelete (value, id) - pointer value; - XID id; -{ - DrawablePtr pDrawable = (DrawablePtr)value; - WindowPtr pWin; - MultibuffersPtr pMultibuffers; - PixmapPtr pPixmap; - - if (pDrawable->type == DRAWABLE_WINDOW) - { - pWin = (WindowPtr) pDrawable; - pMultibuffers = (MultibuffersPtr) dixLookupPrivate(&pWin->devPrivates, MultibufferWindowPrivKey); - pPixmap = pMultibuffers->buffers[pMultibuffers->displayedMultibuffer].pPixmap; - } - else - { - pPixmap = (PixmapPtr) pDrawable; - } - (*pPixmap->drawable.pScreen->DestroyPixmap) (pPixmap); - return Success; -} - -/* Resource delete func for MultibufferResType */ -/*ARGSUSED*/ -static int -MultibufferDelete (value, id) - pointer value; - XID id; -{ - MultibufferPtr pMultibuffer = (MultibufferPtr)value; - MultibuffersPtr pMultibuffers; - - pMultibuffers = pMultibuffer->pMultibuffers; - if (--pMultibuffers->refcnt == 0) - { - FreeResourceByType (pMultibuffers->pWindow->drawable.id, - MultibuffersResType, TRUE); - xfree (pMultibuffers); - } - return Success; -} - -/* Resource delete func for MultibuffersResType */ -/*ARGSUSED*/ -static int -MultibuffersDelete (value, id) - pointer value; - XID id; -{ - MultibuffersPtr pMultibuffers = (MultibuffersPtr)value; - int i; - - if (pMultibuffers->refcnt == pMultibuffers->numMultibuffer) - { - for (i = pMultibuffers->numMultibuffer; --i >= 0; ) - FreeResource (pMultibuffers->buffers[i].pPixmap->drawable.id, 0); - } - return Success; -} - -/* Resource delete func for OtherClientResType */ -static int -OtherClientDelete (value, id) - pointer value; - XID id; -{ - MultibufferPtr pMultibuffer = (MultibufferPtr)value; - OtherClientsPtr other, prev; - - prev = 0; - for (other = pMultibuffer->otherClients; other; other = other->next) - { - if (other->resource == id) - { - if (prev) - prev->next = other->next; - else - pMultibuffer->otherClients = other->next; - xfree (other); - RecalculateMultibufferOtherEvents (pMultibuffer); - break; - } - prev = other; - } - return Success; -} - -static int -EventSelectForMultibuffer (pMultibuffer, client, mask) - MultibufferPtr pMultibuffer; - ClientPtr client; - Mask mask; -{ - OtherClientsPtr other; - - if (mask & ~ValidEventMasks) - { - client->errorValue = mask; - return BadValue; - } - if (bClient (pMultibuffer) == client) - { - pMultibuffer->eventMask = mask; - } - else /* some other client besides the creator wants events */ - { - for (other = pMultibuffer->otherClients; other; other = other->next) - { - if (SameClient (other, client)) - { - if (mask == 0) - { - FreeResource (other->resource, RT_NONE); - break; - } - other->mask = mask; - break; - } - } - if (!other) - { /* new client that never selected events on this buffer before */ - other = xalloc (sizeof (OtherClients)); - if (!other) - return BadAlloc; - other->mask = mask; - other->resource = FakeClientID (client->index); - if (!AddResource (other->resource, OtherClientResType, (pointer) pMultibuffer)) - { - xfree (other); - return BadAlloc; - } - other->next = pMultibuffer->otherClients; - pMultibuffer->otherClients = other; - } - RecalculateMultibufferOtherEvents (pMultibuffer); - } - return (client->noClientException); -} - -/* or together all the otherClients event masks */ -static void -RecalculateMultibufferOtherEvents (pMultibuffer) - MultibufferPtr pMultibuffer; -{ - Mask otherEventMask; - OtherClients *other; - - otherEventMask = 0L; - for (other = pMultibuffer->otherClients; other; other = other->next) - otherEventMask |= other->mask; - pMultibuffer->otherEventMask = otherEventMask; -} - -/* add milliseconds to a timestamp, handling overflow */ -static void -BumpTimeStamp (ts, inc) -TimeStamp *ts; -CARD32 inc; -{ - CARD32 newms; - - newms = ts->milliseconds + inc; - if (newms < ts->milliseconds) - ts->months++; - ts->milliseconds = newms; -} |