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- /************************************************************
- Copyright 1989 by The Massachusetts Institute of Technology
-
- Permission to use, copy, modify, and distribute this
- software and its documentation for any purpose and without
- fee is hereby granted, provided that the above copyright
- no- tice appear in all copies and that both that copyright
- no- tice and this permission notice appear in supporting
- docu- mentation, and that the name of MIT not be used in
- advertising or publicity pertaining to distribution of the
- software without specific prior written permission.
- M.I.T. makes no representation about the suitability of
- this software for any purpose. It is provided "as is"
- without any express or implied warranty.
-
- ********************************************************/
-
- /* THIS IS NOT AN X CONSORTIUM STANDARD */
-
- /* $XConsortium: shm.c,v 1.11 91/07/12 09:54:58 rws Exp $ */
-
- #include <sys/types.h>
- #include <sys/ipc.h>
- #include <sys/shm.h>
- #define NEED_REPLIES
- #define NEED_EVENTS
- #include "X.h"
- #include "Xproto.h"
- #include "misc.h"
- #include "os.h"
- #include "dixstruct.h"
- #include "resource.h"
- #include "scrnintstr.h"
- #include "windowstr.h"
- #include "pixmapstr.h"
- #include "gcstruct.h"
- #include "extnsionst.h"
- #include "servermd.h"
- #define _XSHM_SERVER_
- #include "shmstr.h"
- #include "Xfuncproto.h"
-
- typedef struct _ShmDesc {
- struct _ShmDesc *next;
- int shmid;
- int refcnt;
- char *addr;
- Bool writable;
- unsigned long size;
- } ShmDescRec, *ShmDescPtr;
-
- #if NeedFunctionPrototypes && !defined(ultrix)
- void *shmat(int, void*, int);
- #else
- char *shmat();
- #endif
- static void miShmPutImage(), fbShmPutImage();
- static PixmapPtr fbShmCreatePixmap();
- ExtensionEntry *AddExtension();
- static int ProcShmDispatch(), SProcShmDispatch();
- static int ShmDetachSegment();
- static void ShmResetProc(), SShmCompletionEvent();
-
- static unsigned char ShmReqCode;
- static int ShmCompletionCode;
- static int BadShmSegCode;
- static RESTYPE ShmSegType, ShmPixType;
- static ShmDescPtr Shmsegs;
- static Bool sharedPixmaps;
- static int pixmapFormat;
- static int shmPixFormat[MAXSCREENS];
- static ShmFuncsPtr shmFuncs[MAXSCREENS];
- static ShmFuncs miFuncs = {NULL, miShmPutImage};
- static ShmFuncs fbFuncs = {fbShmCreatePixmap, fbShmPutImage};
-
- #define VERIFY_SHMSEG(shmseg,shmdesc,client) \
- { \
- shmdesc = (ShmDescPtr)LookupIDByType(shmseg, ShmSegType); \
- if (!shmdesc) \
- { \
- client->errorValue = shmseg; \
- return BadShmSegCode; \
- } \
- }
-
- #define VERIFY_SHMPTR(shmseg,offset,needwrite,shmdesc,client) \
- { \
- VERIFY_SHMSEG(shmseg, shmdesc, client); \
- if ((offset & 3) || (offset > shmdesc->size)) \
- { \
- client->errorValue = offset; \
- return BadValue; \
- } \
- if (needwrite && !shmdesc->writable) \
- return BadAccess; \
- }
-
- #define VERIFY_SHMSIZE(shmdesc,offset,len,client) \
- { \
- if ((offset + len) > shmdesc->size) \
- { \
- return BadAccess; \
- } \
- }
-
- void
- ShmExtensionInit()
- {
- ExtensionEntry *extEntry;
- int i;
-
- sharedPixmaps = xTrue;
- pixmapFormat = shmPixFormat[0];
- for (i = 0; i < screenInfo.numScreens; i++)
- {
- if (!shmFuncs[i])
- shmFuncs[i] = &miFuncs;
- if (!shmFuncs[i]->CreatePixmap)
- sharedPixmaps = xFalse;
- if (shmPixFormat[i] && (shmPixFormat[i] != pixmapFormat))
- {
- sharedPixmaps = xFalse;
- pixmapFormat = 0;
- }
- }
- if (!pixmapFormat)
- pixmapFormat = ZPixmap;
- ShmSegType = CreateNewResourceType(ShmDetachSegment);
- ShmPixType = CreateNewResourceType(ShmDetachSegment);
- if (ShmSegType && ShmPixType &&
- (extEntry = AddExtension(SHMNAME, ShmNumberEvents, ShmNumberErrors,
- ProcShmDispatch, SProcShmDispatch,
- ShmResetProc, StandardMinorOpcode)))
- {
- ShmReqCode = (unsigned char)extEntry->base;
- ShmCompletionCode = extEntry->eventBase;
- BadShmSegCode = extEntry->errorBase;
- EventSwapVector[ShmCompletionCode] = SShmCompletionEvent;
- }
- }
-
- /*ARGSUSED*/
- static void
- ShmResetProc (extEntry)
- ExtensionEntry *extEntry;
- {
- int i;
-
- for (i = 0; i < MAXSCREENS; i++)
- {
- shmFuncs[i] = (ShmFuncsPtr)NULL;
- shmPixFormat[i] = 0;
- }
- }
-
- void
- ShmRegisterFuncs(pScreen, funcs)
- ScreenPtr pScreen;
- ShmFuncsPtr funcs;
- {
- shmFuncs[pScreen->myNum] = funcs;
- }
-
- void
- ShmSetPixmapFormat(pScreen, format)
- ScreenPtr pScreen;
- int format;
- {
- shmPixFormat[pScreen->myNum] = format;
- }
-
- void
- ShmRegisterFbFuncs(pScreen)
- ScreenPtr pScreen;
- {
- shmFuncs[pScreen->myNum] = &fbFuncs;
- }
-
- static int
- ProcShmQueryVersion(client)
- register ClientPtr client;
- {
- REQUEST(xShmQueryVersionReq);
- xShmQueryVersionReply rep;
- register int n;
-
- REQUEST_SIZE_MATCH(xShmQueryVersionReq);
- rep.type = X_Reply;
- rep.length = 0;
- rep.sequenceNumber = client->sequence;
- rep.sharedPixmaps = sharedPixmaps;
- rep.majorVersion = SHM_MAJOR_VERSION;
- rep.minorVersion = SHM_MINOR_VERSION;
- rep.uid = geteuid();
- rep.gid = getegid();
- if (client->swapped) {
- swaps(&rep.sequenceNumber, n);
- swapl(&rep.length, n);
- swaps(&rep.majorVersion, n);
- swaps(&rep.minorVersion, n);
- swaps(&rep.uid, n);
- swaps(&rep.gid, n);
- }
- WriteToClient(client, sizeof(xShmQueryVersionReply), (char *)&rep);
- return (client->noClientException);
- }
-
- static int
- ProcShmAttach(client)
- register ClientPtr client;
- {
- struct shmid_ds buf;
- ShmDescPtr shmdesc;
- REQUEST(xShmAttachReq);
-
- REQUEST_SIZE_MATCH(xShmAttachReq);
- LEGAL_NEW_RESOURCE(stuff->shmseg, client);
- if ((stuff->readOnly != xTrue) && (stuff->readOnly != xFalse))
- {
- client->errorValue = stuff->readOnly;
- return(BadValue);
- }
- for (shmdesc = Shmsegs;
- shmdesc && (shmdesc->shmid != stuff->shmid);
- shmdesc = shmdesc->next)
- ;
- if (shmdesc)
- {
- if (!stuff->readOnly && !shmdesc->writable)
- return BadAccess;
- shmdesc->refcnt++;
- }
- else
- {
- shmdesc = (ShmDescPtr) xalloc(sizeof(ShmDescRec));
- if (!shmdesc)
- return BadAlloc;
- shmdesc->addr = shmat(stuff->shmid, 0,
- stuff->readOnly ? SHM_RDONLY : 0);
- if ((shmdesc->addr == ((char *)-1)) ||
- shmctl(stuff->shmid, IPC_STAT, &buf))
- {
- xfree(shmdesc);
- return BadAccess;
- }
- shmdesc->shmid = stuff->shmid;
- shmdesc->refcnt = 1;
- shmdesc->writable = !stuff->readOnly;
- shmdesc->size = buf.shm_segsz;
- shmdesc->next = Shmsegs;
- Shmsegs = shmdesc;
- }
- if (!AddResource(stuff->shmseg, ShmSegType, (pointer)shmdesc))
- return BadAlloc;
- return(client->noClientException);
- }
-
- /*ARGSUSED*/
- static int
- ShmDetachSegment(shmdesc, shmseg)
- ShmDescPtr shmdesc;
- ShmSeg shmseg;
- {
- ShmDescPtr *prev;
-
- if (--shmdesc->refcnt)
- return TRUE;
- shmdt(shmdesc->addr);
- for (prev = &Shmsegs; *prev != shmdesc; prev = &(*prev)->next)
- ;
- *prev = shmdesc->next;
- xfree(shmdesc);
- }
-
- static int
- ProcShmDetach(client)
- register ClientPtr client;
- {
- ShmDescPtr shmdesc;
- REQUEST(xShmDetachReq);
-
- REQUEST_SIZE_MATCH(xShmDetachReq);
- VERIFY_SHMSEG(stuff->shmseg, shmdesc, client);
- FreeResource(stuff->shmseg, RT_NONE);
- return(client->noClientException);
- }
-
- static void
- miShmPutImage(dst, pGC, depth, format, w, h, sx, sy, sw, sh, dx, dy, data)
- DrawablePtr dst;
- GCPtr pGC;
- int depth, w, h, sx, sy, sw, sh, dx, dy;
- unsigned int format;
- char *data;
- {
- PixmapPtr pmap;
- GCPtr putGC;
-
- putGC = GetScratchGC(depth, dst->pScreen);
- if (!putGC)
- return;
- pmap = (*dst->pScreen->CreatePixmap)(dst->pScreen, sw, sh, depth);
- if (!pmap)
- {
- FreeScratchGC(putGC);
- return;
- }
- ValidateGC((DrawablePtr)pmap, putGC);
- (*putGC->ops->PutImage)(pmap, putGC, depth, -sx, -sy, w, h, 0,
- (format == XYPixmap) ? XYPixmap : ZPixmap, data);
- FreeScratchGC(putGC);
- if (format == XYBitmap)
- (void)(*pGC->ops->CopyPlane)(pmap, dst, pGC, 0, 0, sw, sh, dx, dy, 1L);
- else
- (void)(*pGC->ops->CopyArea)(pmap, dst, pGC, 0, 0, sw, sh, dx, dy);
- (*pmap->drawable.pScreen->DestroyPixmap)(pmap);
- }
-
- static void
- fbShmPutImage(dst, pGC, depth, format, w, h, sx, sy, sw, sh, dx, dy, data)
- DrawablePtr dst;
- GCPtr pGC;
- int depth, w, h, sx, sy, sw, sh, dx, dy;
- unsigned int format;
- char *data;
- {
- if ((format == ZPixmap) || (depth == 1))
- {
- PixmapRec FakePixmap;
- FakePixmap.drawable.type = DRAWABLE_PIXMAP;
- FakePixmap.drawable.class = 0;
- FakePixmap.drawable.pScreen = dst->pScreen;
- FakePixmap.drawable.depth = depth;
- FakePixmap.drawable.bitsPerPixel = depth;
- FakePixmap.drawable.id = 0;
- FakePixmap.drawable.serialNumber = NEXT_SERIAL_NUMBER;
- FakePixmap.drawable.x = 0;
- FakePixmap.drawable.y = 0;
- FakePixmap.drawable.width = w;
- FakePixmap.drawable.height = h;
- FakePixmap.devKind = PixmapBytePad(w, depth);
- FakePixmap.refcnt = 1;
- FakePixmap.devPrivate.ptr = (pointer)data;
- if (format == XYBitmap)
- (void)(*pGC->ops->CopyPlane)(&FakePixmap, dst, pGC,
- sx, sy, sw, sh, dx, dy, 1L);
- else
- (void)(*pGC->ops->CopyArea)(&FakePixmap, dst, pGC,
- sx, sy, sw, sh, dx, dy);
- }
- else
- miShmPutImage(dst, pGC, depth, format, w, h, sx, sy, sw, sh, dx, dy,
- data);
- }
-
- static int
- ProcShmPutImage(client)
- register ClientPtr client;
- {
- register GCPtr pGC;
- register DrawablePtr pDraw;
- long length;
- ShmDescPtr shmdesc;
- REQUEST(xShmPutImageReq);
-
- REQUEST_SIZE_MATCH(xShmPutImageReq);
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, pGC, client);
- VERIFY_SHMPTR(stuff->shmseg, stuff->offset, FALSE, shmdesc, client);
- if ((stuff->sendEvent != xTrue) && (stuff->sendEvent != xFalse))
- return BadValue;
- if (stuff->format == XYBitmap)
- {
- if (stuff->depth != 1)
- return BadMatch;
- length = PixmapBytePad(stuff->totalWidth, 1);
- }
- else if (stuff->format == XYPixmap)
- {
- if (pDraw->depth != stuff->depth)
- return BadMatch;
- length = PixmapBytePad(stuff->totalWidth, 1);
- length *= stuff->depth;
- }
- else if (stuff->format == ZPixmap)
- {
- if (pDraw->depth != stuff->depth)
- return BadMatch;
- length = PixmapBytePad(stuff->totalWidth, stuff->depth);
- }
- else
- {
- client->errorValue = stuff->format;
- return BadValue;
- }
- VERIFY_SHMSIZE(shmdesc, stuff->offset, length * stuff->totalHeight,
- client);
- if (stuff->srcX > stuff->totalWidth)
- {
- client->errorValue = stuff->srcX;
- return BadValue;
- }
- if (stuff->srcY > stuff->totalHeight)
- {
- client->errorValue = stuff->srcY;
- return BadValue;
- }
- if ((stuff->srcX + stuff->srcWidth) > stuff->totalWidth)
- {
- client->errorValue = stuff->srcWidth;
- return BadValue;
- }
- if ((stuff->srcY + stuff->srcHeight) > stuff->totalHeight)
- {
- client->errorValue = stuff->srcHeight;
- return BadValue;
- }
- if ((((stuff->format == ZPixmap) && (stuff->srcX == 0)) ||
- ((stuff->format != ZPixmap) &&
- (stuff->srcX < screenInfo.bitmapScanlinePad) &&
- ((stuff->format == XYBitmap) ||
- ((stuff->srcY == 0) &&
- (stuff->srcHeight == stuff->totalHeight))))) &&
- ((stuff->srcX + stuff->srcWidth) == stuff->totalWidth))
- (*pGC->ops->PutImage) (pDraw, pGC, stuff->depth,
- stuff->dstX, stuff->dstY,
- stuff->totalWidth, stuff->srcHeight,
- stuff->srcX, stuff->format,
- shmdesc->addr + stuff->offset +
- (stuff->srcY * length));
- else
- (*shmFuncs[pDraw->pScreen->myNum]->PutImage)(
- pDraw, pGC, stuff->depth, stuff->format,
- stuff->totalWidth, stuff->totalHeight,
- stuff->srcX, stuff->srcY,
- stuff->srcWidth, stuff->srcHeight,
- stuff->dstX, stuff->dstY,
- shmdesc->addr + stuff->offset);
- if (stuff->sendEvent)
- {
- xShmCompletionEvent ev;
-
- ev.type = ShmCompletionCode;
- ev.drawable = stuff->drawable;
- ev.sequenceNumber = client->sequence;
- ev.minorEvent = X_ShmPutImage;
- ev.majorEvent = ShmReqCode;
- ev.shmseg = stuff->shmseg;
- ev.offset = stuff->offset;
- WriteEventsToClient(client, 1, (xEvent *) &ev);
- }
- return (client->noClientException);
- }
-
- static int
- ProcShmGetImage(client)
- register ClientPtr client;
- {
- register DrawablePtr pDraw;
- long lenPer, length;
- Mask plane;
- xShmGetImageReply xgi;
- ShmDescPtr shmdesc;
- int n;
- REQUEST(xShmGetImageReq);
-
- REQUEST_SIZE_MATCH(xShmGetImageReq);
- if ((stuff->format != XYPixmap) && (stuff->format != ZPixmap))
- {
- client->errorValue = stuff->format;
- return(BadValue);
- }
- if (!(pDraw = LOOKUP_DRAWABLE(stuff->drawable, client)))
- {
- client->errorValue = stuff->drawable;
- return (BadDrawable);
- }
- VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client);
- if (pDraw->type == DRAWABLE_WINDOW)
- {
- if( /* check for being viewable */
- !((WindowPtr) pDraw)->realized ||
- /* check for being on screen */
- pDraw->x + stuff->x < 0 ||
- pDraw->x + stuff->x + (int)stuff->width > pDraw->pScreen->width ||
- pDraw->y + stuff->y < 0 ||
- pDraw->y + stuff->y + (int)stuff->height > pDraw->pScreen->height ||
- /* check for being inside of border */
- stuff->x < - wBorderWidth((WindowPtr)pDraw) ||
- stuff->x + (int)stuff->width >
- wBorderWidth((WindowPtr)pDraw) + (int)pDraw->width ||
- stuff->y < -wBorderWidth((WindowPtr)pDraw) ||
- stuff->y + (int)stuff->height >
- wBorderWidth((WindowPtr)pDraw) + (int)pDraw->height
- )
- return(BadMatch);
- xgi.visual = wVisual(((WindowPtr)pDraw));
- }
- else
- {
- if (stuff->x < 0 ||
- stuff->x+(int)stuff->width > pDraw->width ||
- stuff->y < 0 ||
- stuff->y+(int)stuff->height > pDraw->height
- )
- return(BadMatch);
- xgi.visual = None;
- }
- xgi.type = X_Reply;
- xgi.length = 0;
- xgi.sequenceNumber = client->sequence;
- xgi.depth = pDraw->depth;
- if(stuff->format == ZPixmap)
- {
- length = PixmapBytePad(stuff->width, pDraw->depth) * stuff->height;
- }
- else
- {
- lenPer = PixmapBytePad(stuff->width, 1) * stuff->height;
- plane = ((Mask)1) << (pDraw->depth - 1);
- /* only planes asked for */
- length = lenPer * Ones(stuff->planeMask & (plane | (plane - 1)));
- }
- VERIFY_SHMSIZE(shmdesc, stuff->offset, length, client);
- xgi.size = length;
- if (length == 0)
- {
- /* nothing to do */
- }
- else if (stuff->format == ZPixmap)
- {
- (*pDraw->pScreen->GetImage)(pDraw, stuff->x, stuff->y,
- stuff->width, stuff->height,
- stuff->format, stuff->planeMask,
- shmdesc->addr + stuff->offset);
- }
- else
- {
- length = stuff->offset;
- for (; plane; plane >>= 1)
- {
- if (stuff->planeMask & plane)
- {
- (*pDraw->pScreen->GetImage)(pDraw,
- stuff->x, stuff->y,
- stuff->width, stuff->height,
- stuff->format, plane,
- shmdesc->addr + length);
- length += lenPer;
- }
- }
- }
- if (client->swapped) {
- swaps(&xgi.sequenceNumber, n);
- swapl(&xgi.length, n);
- swapl(&xgi.visual, n);
- swapl(&xgi.size, n);
- }
- WriteToClient(client, sizeof(xShmGetImageReply), (char *)&xgi);
- return(client->noClientException);
- }
-
- static PixmapPtr
- fbShmCreatePixmap (pScreen, width, height, depth, addr)
- ScreenPtr pScreen;
- int width;
- int height;
- int depth;
- char *addr;
- {
- register PixmapPtr pPixmap;
-
- pPixmap = (PixmapPtr)xalloc(sizeof(PixmapRec));
- if (!pPixmap)
- return NullPixmap;
- pPixmap->drawable.type = DRAWABLE_PIXMAP;
- pPixmap->drawable.class = 0;
- pPixmap->drawable.pScreen = pScreen;
- pPixmap->drawable.depth = depth;
- pPixmap->drawable.bitsPerPixel = depth;
- pPixmap->drawable.id = 0;
- pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
- pPixmap->drawable.x = 0;
- pPixmap->drawable.y = 0;
- pPixmap->drawable.width = width;
- pPixmap->drawable.height = height;
- pPixmap->devKind = PixmapBytePad(width, depth);
- pPixmap->refcnt = 1;
- pPixmap->devPrivate.ptr = (pointer)addr;
- return pPixmap;
- }
-
- static int
- ProcShmCreatePixmap(client)
- register ClientPtr client;
- {
- PixmapPtr pMap;
- register DrawablePtr pDraw;
- DepthPtr pDepth;
- register int i;
- ShmDescPtr shmdesc;
- REQUEST(xShmCreatePixmapReq);
-
- REQUEST_SIZE_MATCH(xShmCreatePixmapReq);
- client->errorValue = stuff->pid;
- if (!sharedPixmaps)
- return BadImplementation;
- LEGAL_NEW_RESOURCE(stuff->pid, client);
- if (!(pDraw = LOOKUP_DRAWABLE(stuff->drawable, client)))
- { /* can be inputonly */
- if (!(pDraw = (DrawablePtr)LookupWindow(stuff->drawable, client)))
- return (BadDrawable);
- }
- VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client);
- if (!stuff->width || !stuff->height)
- {
- client->errorValue = 0;
- return BadValue;
- }
- if (stuff->depth != 1)
- {
- pDepth = pDraw->pScreen->allowedDepths;
- for (i=0; i<pDraw->pScreen->numDepths; i++, pDepth++)
- if (pDepth->depth == stuff->depth)
- goto CreatePmap;
- client->errorValue = stuff->depth;
- return BadValue;
- }
- CreatePmap:
- VERIFY_SHMSIZE(shmdesc, stuff->offset,
- PixmapBytePad(stuff->width, stuff->depth) * stuff->height,
- client);
- pMap = (*shmFuncs[pDraw->pScreen->myNum]->CreatePixmap)(
- pDraw->pScreen, stuff->width,
- stuff->height, stuff->depth,
- shmdesc->addr + stuff->offset);
- if (pMap)
- {
- pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
- pMap->drawable.id = stuff->pid;
- if (AddResource(stuff->pid, RT_PIXMAP, (pointer)pMap))
- {
- shmdesc->refcnt++;
- if (AddResource(stuff->pid, ShmPixType, (pointer)shmdesc))
- return(client->noClientException);
- FreeResource(stuff->pid, RT_NONE);
- }
- }
- return (BadAlloc);
- }
-
- static int
- ProcShmDispatch (client)
- register ClientPtr client;
- {
- REQUEST(xReq);
- switch (stuff->data)
- {
- case X_ShmQueryVersion:
- return ProcShmQueryVersion(client);
- case X_ShmAttach:
- return ProcShmAttach(client);
- case X_ShmDetach:
- return ProcShmDetach(client);
- case X_ShmPutImage:
- return ProcShmPutImage(client);
- case X_ShmGetImage:
- return ProcShmGetImage(client);
- case X_ShmCreatePixmap:
- return ProcShmCreatePixmap(client);
- default:
- return BadRequest;
- }
- }
-
- static void
- SShmCompletionEvent(from, to)
- xShmCompletionEvent *from, *to;
- {
- to->type = from->type;
- cpswaps(from->sequenceNumber, to->sequenceNumber);
- cpswapl(from->drawable, to->drawable);
- cpswaps(from->minorEvent, to->minorEvent);
- to->majorEvent = from->majorEvent;
- cpswapl(from->shmseg, to->shmseg);
- cpswapl(from->offset, to->offset);
- }
-
- static int
- SProcShmQueryVersion(client)
- register ClientPtr client;
- {
- register int n;
- REQUEST(xShmQueryVersionReq);
-
- swaps(&stuff->length, n);
- return ProcShmQueryVersion(client);
- }
-
- static int
- SProcShmAttach(client)
- ClientPtr client;
- {
- register int n;
- REQUEST(xShmAttachReq);
- swaps(&stuff->length, n);
- REQUEST_SIZE_MATCH(xShmAttachReq);
- swapl(&stuff->shmseg, n);
- swapl(&stuff->shmid, n);
- return ProcShmAttach(client);
- }
-
- static int
- SProcShmDetach(client)
- ClientPtr client;
- {
- register int n;
- REQUEST(xShmDetachReq);
- swaps(&stuff->length, n);
- REQUEST_SIZE_MATCH(xShmDetachReq);
- swapl(&stuff->shmseg, n);
- return ProcShmDetach(client);
- }
-
- static int
- SProcShmPutImage(client)
- ClientPtr client;
- {
- register int n;
- REQUEST(xShmPutImageReq);
- swaps(&stuff->length, n);
- REQUEST_SIZE_MATCH(xShmPutImageReq);
- swapl(&stuff->drawable, n);
- swapl(&stuff->gc, n);
- swaps(&stuff->totalWidth, n);
- swaps(&stuff->totalHeight, n);
- swaps(&stuff->srcX, n);
- swaps(&stuff->srcY, n);
- swaps(&stuff->srcWidth, n);
- swaps(&stuff->srcHeight, n);
- swaps(&stuff->dstX, n);
- swaps(&stuff->dstY, n);
- swapl(&stuff->shmseg, n);
- swapl(&stuff->offset, n);
- return ProcShmPutImage(client);
- }
-
- static int
- SProcShmGetImage(client)
- ClientPtr client;
- {
- register int n;
- REQUEST(xShmGetImageReq);
- swaps(&stuff->length, n);
- REQUEST_SIZE_MATCH(xShmGetImageReq);
- swapl(&stuff->drawable, n);
- swaps(&stuff->x, n);
- swaps(&stuff->y, n);
- swaps(&stuff->width, n);
- swaps(&stuff->height, n);
- swapl(&stuff->planeMask, n);
- swapl(&stuff->shmseg, n);
- swapl(&stuff->offset, n);
- return ProcShmGetImage(client);
- }
-
- static int
- SProcShmCreatePixmap(client)
- ClientPtr client;
- {
- register int n;
- REQUEST(xShmCreatePixmapReq);
- swaps(&stuff->length, n);
- REQUEST_SIZE_MATCH(xShmCreatePixmapReq);
- swapl(&stuff->drawable, n);
- swaps(&stuff->width, n);
- swaps(&stuff->height, n);
- swapl(&stuff->shmseg, n);
- swapl(&stuff->offset, n);
- return ProcShmCreatePixmap(client);
- }
-
- static int
- SProcShmDispatch (client)
- register ClientPtr client;
- {
- REQUEST(xReq);
- switch (stuff->data)
- {
- case X_ShmQueryVersion:
- return SProcShmQueryVersion(client);
- case X_ShmAttach:
- return SProcShmAttach(client);
- case X_ShmDetach:
- return SProcShmDetach(client);
- case X_ShmPutImage:
- return SProcShmPutImage(client);
- case X_ShmGetImage:
- return SProcShmGetImage(client);
- case X_ShmCreatePixmap:
- return SProcShmCreatePixmap(client);
- default:
- return BadRequest;
- }
- }
-