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-rw-r--r--Xext/shm.c719
1 files changed, 483 insertions, 236 deletions
diff --git a/Xext/shm.c b/Xext/shm.c
index 0a9f3af59..3ba9ad2c1 100644
--- a/Xext/shm.c
+++ b/Xext/shm.c
@@ -1,3 +1,4 @@
+/* $XFree86: xc/programs/Xserver/Xext/shm.c,v 3.36 2002/04/03 19:51:11 herrb Exp $ */
/************************************************************
Copyright 1989, 1998 The Open Group
@@ -29,8 +30,15 @@ in this Software without prior written authorization from The Open Group.
/* $Xorg: shm.c,v 1.4 2001/02/09 02:04:33 xorgcvs Exp $ */
#include <sys/types.h>
+#ifndef Lynx
#include <sys/ipc.h>
#include <sys/shm.h>
+#else
+#include <ipc.h>
+#include <shm.h>
+#endif
+#include <unistd.h>
+#include <sys/stat.h>
#define NEED_REPLIES
#define NEED_EVENTS
#include "X.h"
@@ -48,6 +56,14 @@ in this Software without prior written authorization from The Open Group.
#define _XSHM_SERVER_
#include "shmstr.h"
#include "Xfuncproto.h"
+#ifdef EXTMODULE
+#include "xf86_ansic.h"
+#endif
+
+#ifdef PANORAMIX
+#include "panoramiX.h"
+#include "panoramiXsrv.h"
+#endif
typedef struct _ShmDesc {
struct _ShmDesc *next;
@@ -58,21 +74,57 @@ typedef struct _ShmDesc {
unsigned long size;
} ShmDescRec, *ShmDescPtr;
-static void miShmPutImage(), fbShmPutImage();
-static PixmapPtr fbShmCreatePixmap();
-static int ProcShmDispatch(), SProcShmDispatch();
-static int ShmDetachSegment();
-static void ShmResetProc(), SShmCompletionEvent();
+static void miShmPutImage(XSHM_PUT_IMAGE_ARGS);
+static void fbShmPutImage(XSHM_PUT_IMAGE_ARGS);
+static PixmapPtr fbShmCreatePixmap(XSHM_CREATE_PIXMAP_ARGS);
+static int ShmDetachSegment(
+#if NeedFunctionPrototypes
+ pointer /* value */,
+ XID /* shmseg */
+#endif
+ );
+static void ShmResetProc(
+#if NeedFunctionPrototypes
+ ExtensionEntry * /* extEntry */
+#endif
+ );
+static void SShmCompletionEvent(
+#if NeedFunctionPrototypes
+ xShmCompletionEvent * /* from */,
+ xShmCompletionEvent * /* to */
+#endif
+ );
+
+static Bool ShmDestroyPixmap (PixmapPtr pPixmap);
+
+static DISPATCH_PROC(ProcShmAttach);
+static DISPATCH_PROC(ProcShmCreatePixmap);
+static DISPATCH_PROC(ProcShmDetach);
+static DISPATCH_PROC(ProcShmDispatch);
+static DISPATCH_PROC(ProcShmGetImage);
+static DISPATCH_PROC(ProcShmPutImage);
+static DISPATCH_PROC(ProcShmQueryVersion);
+static DISPATCH_PROC(SProcShmAttach);
+static DISPATCH_PROC(SProcShmCreatePixmap);
+static DISPATCH_PROC(SProcShmDetach);
+static DISPATCH_PROC(SProcShmDispatch);
+static DISPATCH_PROC(SProcShmGetImage);
+static DISPATCH_PROC(SProcShmPutImage);
+static DISPATCH_PROC(SProcShmQueryVersion);
static unsigned char ShmReqCode;
-static int ShmCompletionCode;
-static int BadShmSegCode;
-static RESTYPE ShmSegType, ShmPixType;
+int ShmCompletionCode;
+int BadShmSegCode;
+RESTYPE ShmSegType;
static ShmDescPtr Shmsegs;
static Bool sharedPixmaps;
static int pixmapFormat;
static int shmPixFormat[MAXSCREENS];
static ShmFuncsPtr shmFuncs[MAXSCREENS];
+static DestroyPixmapProcPtr destroyPixmap[MAXSCREENS];
+#ifdef PIXPRIV
+static int shmPixmapPrivate;
+#endif
static ShmFuncs miFuncs = {NULL, miShmPutImage};
static ShmFuncs fbFuncs = {fbShmCreatePixmap, fbShmPutImage};
@@ -106,20 +158,60 @@ static ShmFuncs fbFuncs = {fbShmCreatePixmap, fbShmPutImage};
} \
}
+
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+#include <sys/signal.h>
+
+static Bool badSysCall = FALSE;
+
+static void
+SigSysHandler(signo)
+int signo;
+{
+ badSysCall = TRUE;
+}
+
+static Bool CheckForShmSyscall()
+{
+ void (*oldHandler)();
+ int shmid = -1;
+
+ /* If no SHM support in the kernel, the bad syscall will generate SIGSYS */
+ oldHandler = signal(SIGSYS, SigSysHandler);
+
+ badSysCall = FALSE;
+ shmid = shmget(IPC_PRIVATE, 4096, IPC_CREAT);
+ /* Clean up */
+ if (shmid != -1)
+ {
+ shmctl(shmid, IPC_RMID, (struct shmid_ds *)NULL);
+ }
+ signal(SIGSYS, oldHandler);
+ return(!badSysCall);
+}
+#endif
+
void
ShmExtensionInit()
{
ExtensionEntry *extEntry;
int i;
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+ if (!CheckForShmSyscall())
+ {
+ ErrorF("MIT-SHM extension disabled due to lack of kernel support\n");
+ return;
+ }
+#endif
+
sharedPixmaps = xFalse;
pixmapFormat = 0;
-#else
- sharedPixmaps = xTrue;
- pixmapFormat = shmPixFormat[0];
- for (i = 0; i < screenInfo.numScreens; i++)
{
+ sharedPixmaps = xTrue;
+ pixmapFormat = shmPixFormat[0];
+ for (i = 0; i < screenInfo.numScreens; i++)
+ {
if (!shmFuncs[i])
shmFuncs[i] = &miFuncs;
if (!shmFuncs[i]->CreatePixmap)
@@ -129,13 +221,29 @@ ShmExtensionInit()
sharedPixmaps = xFalse;
pixmapFormat = 0;
}
- }
- if (!pixmapFormat)
+ }
+ if (!pixmapFormat)
pixmapFormat = ZPixmap;
+ if (sharedPixmaps)
+ {
+ for (i = 0; i < screenInfo.numScreens; i++)
+ {
+ destroyPixmap[i] = screenInfo.screens[i]->DestroyPixmap;
+ screenInfo.screens[i]->DestroyPixmap = ShmDestroyPixmap;
+ }
+#ifdef PIXPRIV
+ shmPixmapPrivate = AllocatePixmapPrivateIndex();
+ for (i = 0; i < screenInfo.numScreens; i++)
+ {
+ if (!AllocatePixmapPrivate(screenInfo.screens[i],
+ shmPixmapPrivate, 0))
+ return;
+ }
#endif
+ }
+ }
ShmSegType = CreateNewResourceType(ShmDetachSegment);
- ShmPixType = CreateNewResourceType(ShmDetachSegment);
- if (ShmSegType && ShmPixType &&
+ if (ShmSegType &&
(extEntry = AddExtension(SHMNAME, ShmNumberEvents, ShmNumberErrors,
ProcShmDispatch, SProcShmDispatch,
ShmResetProc, StandardMinorOpcode)))
@@ -143,7 +251,7 @@ ShmExtensionInit()
ShmReqCode = (unsigned char)extEntry->base;
ShmCompletionCode = extEntry->eventBase;
BadShmSegCode = extEntry->errorBase;
- EventSwapVector[ShmCompletionCode] = SShmCompletionEvent;
+ EventSwapVector[ShmCompletionCode] = (EventSwapPtr) SShmCompletionEvent;
}
}
@@ -177,6 +285,41 @@ ShmSetPixmapFormat(pScreen, format)
shmPixFormat[pScreen->myNum] = format;
}
+static Bool
+ShmDestroyPixmap (PixmapPtr pPixmap)
+{
+ ScreenPtr pScreen = pPixmap->drawable.pScreen;
+ Bool ret;
+ if (pPixmap->refcnt == 1)
+ {
+ ShmDescPtr shmdesc;
+#ifdef PIXPRIV
+ shmdesc = (ShmDescPtr) pPixmap->devPrivates[shmPixmapPrivate].ptr;
+#else
+ char *base = (char *) pPixmap->devPrivate.ptr;
+
+ if (base != (pointer) (pPixmap + 1))
+ {
+ for (shmdesc = Shmsegs; shmdesc; shmdesc = shmdesc->next)
+ {
+ if (shmdesc->addr <= base && base <= shmdesc->addr + shmdesc->size)
+ break;
+ }
+ }
+ else
+ shmdesc = 0;
+#endif
+ if (shmdesc)
+ ShmDetachSegment ((pointer) shmdesc, pPixmap->drawable.id);
+ }
+
+ pScreen->DestroyPixmap = destroyPixmap[pScreen->myNum];
+ ret = (*pScreen->DestroyPixmap) (pPixmap);
+ destroyPixmap[pScreen->myNum] = pScreen->DestroyPixmap;
+ pScreen->DestroyPixmap = ShmDestroyPixmap;
+ return ret;
+}
+
void
ShmRegisterFbFuncs(pScreen)
ScreenPtr pScreen;
@@ -188,7 +331,6 @@ static int
ProcShmQueryVersion(client)
register ClientPtr client;
{
- REQUEST(xShmQueryVersionReq);
xShmQueryVersionReply rep;
register int n;
@@ -214,6 +356,47 @@ ProcShmQueryVersion(client)
return (client->noClientException);
}
+/*
+ * Simulate the access() system call for a shared memory segement,
+ * using the credentials from the client if available
+ */
+static int
+shm_access(ClientPtr client, struct ipc_perm *perm, int readonly)
+{
+ int uid, gid;
+ mode_t mask;
+
+ if (LocalClientCred(client, &uid, &gid) != -1) {
+
+ /* User id 0 always gets access */
+ if (uid == 0) {
+ return 0;
+ }
+ /* Check the owner */
+ if (perm->uid == uid || perm->cuid == uid) {
+ mask = S_IRUSR;
+ if (!readonly) {
+ mask |= S_IWUSR;
+ }
+ return (perm->mode & mask) == mask ? 0 : -1;
+ }
+ /* Check the group */
+ if (perm->gid == gid || perm->cgid == gid) {
+ mask = S_IRGRP;
+ if (!readonly) {
+ mask |= S_IWGRP;
+ }
+ return (perm->mode & mask) == mask ? 0 : -1;
+ }
+ }
+ /* Otherwise, check everyone else */
+ mask = S_IROTH;
+ if (!readonly) {
+ mask |= S_IWOTH;
+ }
+ return (perm->mode & mask) == mask ? 0 : -1;
+}
+
static int
ProcShmAttach(client)
register ClientPtr client;
@@ -252,6 +435,17 @@ ProcShmAttach(client)
xfree(shmdesc);
return BadAccess;
}
+
+ /* The attach was performed with root privs. We must
+ * do manual checking of access rights for the credentials
+ * of the client */
+
+ if (shm_access(client, &(buf.shm_perm), stuff->readOnly) == -1) {
+ shmdt(shmdesc->addr);
+ xfree(shmdesc);
+ return BadAccess;
+ }
+
shmdesc->shmid = stuff->shmid;
shmdesc->refcnt = 1;
shmdesc->writable = !stuff->readOnly;
@@ -342,7 +536,7 @@ fbShmPutImage(dst, pGC, depth, format, w, h, sx, sy, sw, sh, dx, dy, data)
PixmapPtr pPixmap;
pPixmap = GetScratchPixmapHeader(dst->pScreen, w, h, depth,
- /*XXX*/depth, PixmapBytePad(w, depth), (pointer)data);
+ BitsPerPixel(depth), PixmapBytePad(w, depth), (pointer)data);
if (!pPixmap)
return;
if (format == XYBitmap)
@@ -358,6 +552,251 @@ fbShmPutImage(dst, pGC, depth, format, w, h, sx, sy, sw, sh, dx, dy, data)
data);
}
+
+#ifdef PANORAMIX
+static int
+ProcPanoramiXShmPutImage(register ClientPtr client)
+{
+ int j, result = 0, orig_x, orig_y;
+ PanoramiXRes *draw, *gc;
+ Bool sendEvent, isRoot;
+
+ REQUEST(xShmPutImageReq);
+ REQUEST_SIZE_MATCH(xShmPutImageReq);
+
+ if(!(draw = (PanoramiXRes *)SecurityLookupIDByClass(
+ client, stuff->drawable, XRC_DRAWABLE, SecurityWriteAccess)))
+ return BadDrawable;
+
+ if(!(gc = (PanoramiXRes *)SecurityLookupIDByType(
+ client, stuff->gc, XRT_GC, SecurityReadAccess)))
+ return BadGC;
+
+ isRoot = (draw->type == XRT_WINDOW) &&
+ (stuff->drawable == WindowTable[0]->drawable.id);
+
+ orig_x = stuff->dstX;
+ orig_y = stuff->dstY;
+ sendEvent = stuff->sendEvent;
+ stuff->sendEvent = 0;
+ FOR_NSCREENS(j) {
+ if(!j) stuff->sendEvent = sendEvent;
+ stuff->drawable = draw->info[j].id;
+ stuff->gc = gc->info[j].id;
+ if (isRoot) {
+ stuff->dstX = orig_x - panoramiXdataPtr[j].x;
+ stuff->dstY = orig_y - panoramiXdataPtr[j].y;
+ }
+ result = ProcShmPutImage(client);
+ if(result != client->noClientException) break;
+ }
+ return(result);
+}
+
+static int
+ProcPanoramiXShmGetImage(ClientPtr client)
+{
+ PanoramiXRes *draw;
+ DrawablePtr drawables[MAXSCREENS];
+ DrawablePtr pDraw;
+ xShmGetImageReply xgi;
+ ShmDescPtr shmdesc;
+ int i, x, y, w, h, format;
+ Mask plane = 0, planemask;
+ long lenPer = 0, length, widthBytesLine;
+ Bool isRoot;
+
+ REQUEST(xShmGetImageReq);
+
+ REQUEST_SIZE_MATCH(xShmGetImageReq);
+
+ if ((stuff->format != XYPixmap) && (stuff->format != ZPixmap)) {
+ client->errorValue = stuff->format;
+ return(BadValue);
+ }
+
+ if(!(draw = (PanoramiXRes *)SecurityLookupIDByClass(
+ client, stuff->drawable, XRC_DRAWABLE, SecurityWriteAccess)))
+ return BadDrawable;
+
+ if (draw->type == XRT_PIXMAP)
+ return ProcShmGetImage(client);
+
+ VERIFY_DRAWABLE(pDraw, stuff->drawable, client);
+
+ VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client);
+
+ x = stuff->x;
+ y = stuff->y;
+ w = stuff->width;
+ h = stuff->height;
+ format = stuff->format;
+ planemask = stuff->planeMask;
+
+ isRoot = (draw->type == XRT_WINDOW) &&
+ (stuff->drawable == WindowTable[0]->drawable.id);
+
+ if(isRoot) {
+ if( /* check for being onscreen */
+ x < 0 || x + w > PanoramiXPixWidth ||
+ y < 0 || y + h > PanoramiXPixHeight )
+ return(BadMatch);
+ } else {
+ if( /* check for being onscreen */
+ panoramiXdataPtr[0].x + pDraw->x + x < 0 ||
+ panoramiXdataPtr[0].x + pDraw->x + x + w > PanoramiXPixWidth ||
+ panoramiXdataPtr[0].y + pDraw->y + y < 0 ||
+ panoramiXdataPtr[0].y + pDraw->y + y + h > PanoramiXPixHeight ||
+ /* check for being inside of border */
+ x < - wBorderWidth((WindowPtr)pDraw) ||
+ x + w > wBorderWidth((WindowPtr)pDraw) + (int)pDraw->width ||
+ y < -wBorderWidth((WindowPtr)pDraw) ||
+ y + h > wBorderWidth ((WindowPtr)pDraw) + (int)pDraw->height)
+ return(BadMatch);
+ }
+
+ drawables[0] = pDraw;
+ for(i = 1; i < PanoramiXNumScreens; i++)
+ VERIFY_DRAWABLE(drawables[i], draw->info[i].id, client);
+
+ xgi.visual = wVisual(((WindowPtr)pDraw));
+ xgi.type = X_Reply;
+ xgi.length = 0;
+ xgi.sequenceNumber = client->sequence;
+ xgi.depth = pDraw->depth;
+
+ if(format == ZPixmap) {
+ widthBytesLine = PixmapBytePad(w, pDraw->depth);
+ length = widthBytesLine * h;
+ } else {
+ widthBytesLine = PixmapBytePad(w, 1);
+ lenPer = widthBytesLine * h;
+ plane = ((Mask)1) << (pDraw->depth - 1);
+ length = lenPer * Ones(planemask & (plane | (plane - 1)));
+ }
+
+ VERIFY_SHMSIZE(shmdesc, stuff->offset, length, client);
+ xgi.size = length;
+
+ if (length == 0) {/* nothing to do */ }
+ else if (format == ZPixmap) {
+ XineramaGetImageData(drawables, x, y, w, h, format, planemask,
+ shmdesc->addr + stuff->offset,
+ widthBytesLine, isRoot);
+ } else {
+
+ length = stuff->offset;
+ for (; plane; plane >>= 1) {
+ if (planemask & plane) {
+ XineramaGetImageData(drawables, x, y, w, h,
+ format, plane, shmdesc->addr + length,
+ widthBytesLine, isRoot);
+ length += lenPer;
+ }
+ }
+ }
+
+ if (client->swapped) {
+ register int n;
+ 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 int
+ProcPanoramiXShmCreatePixmap(client)
+ register ClientPtr client;
+{
+ ScreenPtr pScreen = NULL;
+ PixmapPtr pMap = NULL;
+ DrawablePtr pDraw;
+ DepthPtr pDepth;
+ int i, j, result;
+ ShmDescPtr shmdesc;
+ REQUEST(xShmCreatePixmapReq);
+ PanoramiXRes *newPix;
+
+ REQUEST_SIZE_MATCH(xShmCreatePixmapReq);
+ client->errorValue = stuff->pid;
+ if (!sharedPixmaps)
+ return BadImplementation;
+ LEGAL_NEW_RESOURCE(stuff->pid, client);
+ VERIFY_GEOMETRABLE(pDraw, stuff->drawable, client);
+ 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);
+
+ if(!(newPix = (PanoramiXRes *) xalloc(sizeof(PanoramiXRes))))
+ return BadAlloc;
+
+ newPix->type = XRT_PIXMAP;
+ newPix->u.pix.shared = TRUE;
+ newPix->info[0].id = stuff->pid;
+ for(j = 1; j < PanoramiXNumScreens; j++)
+ newPix->info[j].id = FakeClientID(client->index);
+
+ result = (client->noClientException);
+
+ FOR_NSCREENS(j) {
+ pScreen = screenInfo.screens[j];
+
+ pMap = (*shmFuncs[j]->CreatePixmap)(pScreen,
+ stuff->width, stuff->height, stuff->depth,
+ shmdesc->addr + stuff->offset);
+
+ if (pMap) {
+#ifdef PIXPRIV
+ pMap->devPrivates[shmPixmapPrivate].ptr = (pointer) shmdesc;
+#endif
+ shmdesc->refcnt++;
+ pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+ pMap->drawable.id = newPix->info[j].id;
+ if (!AddResource(newPix->info[j].id, RT_PIXMAP, (pointer)pMap)) {
+ (*pScreen->DestroyPixmap)(pMap);
+ result = BadAlloc;
+ break;
+ }
+ } else {
+ result = BadAlloc;
+ break;
+ }
+ }
+
+ if(result == BadAlloc) {
+ while(j--) {
+ (*pScreen->DestroyPixmap)(pMap);
+ FreeResource(newPix->info[j].id, RT_NONE);
+ }
+ xfree(newPix);
+ } else
+ AddResource(stuff->pid, XRT_PIXMAP, newPix);
+
+ return result;
+}
+
+#endif
+
static int
ProcShmPutImage(client)
register ClientPtr client;
@@ -365,11 +804,6 @@ ProcShmPutImage(client)
register GCPtr pGC;
register DrawablePtr pDraw;
long length;
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- long lengthProto;
- char *tmpImage;
- int tmpAlloced = 0;
-#endif
ShmDescPtr shmdesc;
REQUEST(xShmPutImageReq);
@@ -383,9 +817,6 @@ ProcShmPutImage(client)
if (stuff->depth != 1)
return BadMatch;
length = PixmapBytePad(stuff->totalWidth, 1);
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- lengthProto = PixmapBytePadProto(stuff->totalWidth, 1);
-#endif
}
else if (stuff->format == XYPixmap)
{
@@ -393,19 +824,12 @@ ProcShmPutImage(client)
return BadMatch;
length = PixmapBytePad(stuff->totalWidth, 1);
length *= stuff->depth;
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- lengthProto = PixmapBytePadProto(stuff->totalWidth, 1);
- lengthProto *= stuff->depth;
-#endif
}
else if (stuff->format == ZPixmap)
{
if (pDraw->depth != stuff->depth)
return BadMatch;
length = PixmapBytePad(stuff->totalWidth, stuff->depth);
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- lengthProto = PixmapBytePadProto(stuff->totalWidth, stuff->depth);
-#endif
}
else
{
@@ -413,13 +837,8 @@ ProcShmPutImage(client)
return BadValue;
}
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- VERIFY_SHMSIZE(shmdesc, stuff->offset, lengthProto * stuff->totalHeight,
- client);
-#else
VERIFY_SHMSIZE(shmdesc, stuff->offset, length * stuff->totalHeight,
client);
-#endif
if (stuff->srcX > stuff->totalWidth)
{
client->errorValue = stuff->srcX;
@@ -441,63 +860,6 @@ ProcShmPutImage(client)
return BadValue;
}
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- /* handle 64 bit case where protocol may pad to 32 and we want 64
- * In this case, length is what the server wants and lengthProto is
- * what the protocol thinks it is. If the the two are different,
- * copy the protocol version (i.e. the memory shared between the
- * server and the client) to a version with a scanline pad of 64.
- */
- if (length != lengthProto)
- {
- register int i;
- char * stuffptr, /* pointer into protocol data */
- * tmpptr; /* new location to copy to */
-
- if(!(tmpImage = (char *) ALLOCATE_LOCAL(length*stuff->totalHeight)))
- return (BadAlloc);
- tmpAlloced = 1;
-
- bzero(tmpImage,length*stuff->totalHeight);
-
- if (stuff->format == XYPixmap)
- {
- int lineBytes = PixmapBytePad(stuff->totalWidth, 1);
- int lineBytesProto = PixmapBytePadProto(stuff->totalWidth, 1);
- int depth = stuff->depth;
-
- stuffptr = shmdesc->addr + stuff->offset ;
- tmpptr = tmpImage;
- for (i = 0; i < stuff->totalHeight*stuff->depth;
- stuffptr += lineBytesProto,tmpptr += lineBytes, i++)
- bcopy(stuffptr,tmpptr,lineBytesProto);
- }
- else
- {
- for (i = 0,
- stuffptr = shmdesc->addr + stuff->offset,
- tmpptr=tmpImage;
- i < stuff->totalHeight;
- stuffptr += lengthProto,tmpptr += length, i++)
- bcopy(stuffptr,tmpptr,lengthProto);
- }
- }
- /* handle 64-bit case where stuff is not 64-bit aligned
- */
- else if ((unsigned long)(shmdesc->addr+stuff->offset) &
- (sizeof(long)-1))
- {
- if(!(tmpImage = (char *) ALLOCATE_LOCAL(length*stuff->totalHeight)))
- return (BadAlloc);
- tmpAlloced = 1;
- bcopy((char *)(shmdesc->addr+stuff->offset),
- tmpImage,
- length*stuff->totalHeight);
- }
- else
- tmpImage = (char *)(shmdesc->addr+stuff->offset);
-#endif
-
if ((((stuff->format == ZPixmap) && (stuff->srcX == 0)) ||
((stuff->format != ZPixmap) &&
(stuff->srcX < screenInfo.bitmapScanlinePad) &&
@@ -509,11 +871,7 @@ ProcShmPutImage(client)
stuff->dstX, stuff->dstY,
stuff->totalWidth, stuff->srcHeight,
stuff->srcX, stuff->format,
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- tmpImage +
-#else
shmdesc->addr + stuff->offset +
-#endif
(stuff->srcY * length));
else
(*shmFuncs[pDraw->pScreen->myNum]->PutImage)(
@@ -522,12 +880,7 @@ ProcShmPutImage(client)
stuff->srcX, stuff->srcY,
stuff->srcWidth, stuff->srcHeight,
stuff->dstX, stuff->dstY,
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- tmpImage);
-
-#else
shmdesc->addr + stuff->offset);
-#endif
if (stuff->sendEvent)
{
@@ -543,12 +896,7 @@ ProcShmPutImage(client)
WriteEventsToClient(client, 1, (xEvent *) &ev);
}
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- if (tmpAlloced)
- DEALLOCATE_LOCAL(tmpImage);
-#endif
-
- return (client->noClientException);
+ return (client->noClientException);
}
@@ -558,17 +906,11 @@ ProcShmGetImage(client)
register ClientPtr client;
{
register DrawablePtr pDraw;
- long lenPer, length;
- Mask plane;
+ long lenPer = 0, length;
+ Mask plane = 0;
xShmGetImageReply xgi;
ShmDescPtr shmdesc;
int n;
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- long widthBytesLine,widthBytesLineProto;
- long lenPerProto,lengthProto;
- char *tmpImage;
- int tmpAlloced = 0;
-#endif
REQUEST(xShmGetImageReq);
@@ -616,43 +958,18 @@ ProcShmGetImage(client)
xgi.depth = pDraw->depth;
if(stuff->format == ZPixmap)
{
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- widthBytesLine = PixmapBytePad(stuff->width, pDraw->depth);
- length = widthBytesLine * stuff->height;
- widthBytesLineProto = PixmapBytePadProto(stuff->width, pDraw->depth);
- lengthProto = widthBytesLineProto * stuff->height;
-#else
length = PixmapBytePad(stuff->width, pDraw->depth) * stuff->height;
-#endif
}
else
{
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- widthBytesLine = PixmapBytePad(stuff->width, 1);
- lenPer = widthBytesLine * stuff->height;
- plane = ((Mask)1) << (pDraw->depth - 1);
- /* only planes asked for */
- length = lenPer * Ones(stuff->planeMask & (plane | (plane - 1)));
-
- widthBytesLineProto = PixmapBytePadProto(stuff->width, 1);
- lenPerProto = widthBytesLineProto * stuff->height;
- lengthProto = lenPerProto * Ones(stuff->planeMask &
- (plane | (plane - 1)));
-#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)));
-#endif
}
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- VERIFY_SHMSIZE(shmdesc, stuff->offset, lengthProto, client);
- xgi.size = lengthProto;
-#else
VERIFY_SHMSIZE(shmdesc, stuff->offset, length, client);
xgi.size = length;
-#endif
if (length == 0)
{
@@ -660,105 +977,25 @@ ProcShmGetImage(client)
}
else if (stuff->format == ZPixmap)
{
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- /* check for protocol/server padding differences.
- */
- if ((widthBytesLine != widthBytesLineProto) ||
- ((unsigned long)shmdesc->addr + stuff->offset & (sizeof(long)-1)))
- {
- /* temp stuff for 64 bit alignment stuff */
- register char * bufPtr, * protoPtr;
- register int i;
-
- if(!(tmpImage = (char *) ALLOCATE_LOCAL(length)))
- return (BadAlloc);
- tmpAlloced = 1;
-
- (*pDraw->pScreen->GetImage)(pDraw, stuff->x, stuff->y,
- stuff->width, stuff->height,
- stuff->format, stuff->planeMask,
- tmpImage);
-
- /* for 64-bit server, convert image to pad to 32 bits
- */
- bzero(shmdesc->addr + stuff->offset,lengthProto);
-
- for (i=0,bufPtr=tmpImage,protoPtr=shmdesc->addr + stuff->offset;
- i < stuff->height;
- bufPtr += widthBytesLine,protoPtr += widthBytesLineProto,
- i++)
- bcopy(bufPtr,protoPtr,widthBytesLineProto);
- }
- else
- {
- (*pDraw->pScreen->GetImage)(pDraw, stuff->x, stuff->y,
- stuff->width, stuff->height,
- stuff->format, stuff->planeMask,
- shmdesc->addr + stuff->offset);
- }
-#else
(*pDraw->pScreen->GetImage)(pDraw, stuff->x, stuff->y,
stuff->width, stuff->height,
stuff->format, stuff->planeMask,
shmdesc->addr + stuff->offset);
-#endif
}
else
{
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- /* check for protocol/server padding differences.
- */
- if ((widthBytesLine != widthBytesLineProto) ||
- ((unsigned long)shmdesc->addr + stuff->offset &
- (sizeof(long)-1)))
- {
- if(!(tmpImage = (char *) ALLOCATE_LOCAL(length)))
- return (BadAlloc);
- tmpAlloced = 1;
- }
-#endif
length = stuff->offset;
for (; plane; plane >>= 1)
{
if (stuff->planeMask & plane)
{
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- if ((widthBytesLine != widthBytesLineProto) ||
- ((unsigned long)shmdesc->addr + stuff->offset &
- (sizeof(long)-1)))
- {
- /* get image for each plane.
- */
- (*pDraw->pScreen->GetImage)(pDraw,
- stuff->x, stuff->y,
- stuff->width, stuff->height,
- stuff->format, plane,
- tmpImage);
-
- /* for 64-bit server, convert image to pad to 32 bits */
- bzero(shmdesc->addr+length, widthBytesLine);
- bcopy(tmpImage, shmdesc->addr+length, widthBytesLineProto);
- /* increment length */
- length += lenPerProto;
- }
- else /* no diff between protocol and server */
- {
- (*pDraw->pScreen->GetImage)(pDraw,
- stuff->x, stuff->y,
- stuff->width, stuff->height,
- stuff->format, plane,
- shmdesc->addr + length);
- length += lenPer;
- }
-#else
(*pDraw->pScreen->GetImage)(pDraw,
stuff->x, stuff->y,
stuff->width, stuff->height,
stuff->format, plane,
shmdesc->addr + length);
length += lenPer;
-#endif
}
}
}
@@ -771,11 +1008,6 @@ ProcShmGetImage(client)
}
WriteToClient(client, sizeof(xShmGetImageReply), (char *)&xgi);
-#ifdef INTERNAL_VS_EXTERNAL_PADDING
- if (tmpAlloced)
- DEALLOCATE_LOCAL(tmpImage);
-#endif
-
return(client->noClientException);
}
@@ -794,8 +1026,10 @@ fbShmCreatePixmap (pScreen, width, height, depth, addr)
return NullPixmap;
if (!(*pScreen->ModifyPixmapHeader)(pPixmap, width, height, depth,
- /*XXX*/depth, PixmapBytePad(width, depth), (pointer)addr))
+ BitsPerPixel(depth), PixmapBytePad(width, depth), (pointer)addr)) {
+ (*pScreen->DestroyPixmap)(pPixmap);
return NullPixmap;
+ }
return pPixmap;
}
@@ -841,14 +1075,15 @@ CreatePmap:
shmdesc->addr + stuff->offset);
if (pMap)
{
+#ifdef PIXPRIV
+ pMap->devPrivates[shmPixmapPrivate].ptr = (pointer) shmdesc;
+#endif
+ shmdesc->refcnt++;
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(client->noClientException);
}
}
return (BadAlloc);
@@ -868,11 +1103,23 @@ ProcShmDispatch (client)
case X_ShmDetach:
return ProcShmDetach(client);
case X_ShmPutImage:
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ return ProcPanoramiXShmPutImage(client);
+#endif
return ProcShmPutImage(client);
case X_ShmGetImage:
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ return ProcPanoramiXShmGetImage(client);
+#endif
return ProcShmGetImage(client);
case X_ShmCreatePixmap:
- return ProcShmCreatePixmap(client);
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ return ProcPanoramiXShmCreatePixmap(client);
+#endif
+ return ProcShmCreatePixmap(client);
default:
return BadRequest;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-30 23:23:33 +0000