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Diffstat (limited to 'xorg-server/Xext/shm.c')
-rw-r--r--xorg-server/Xext/shm.c1075
1 files changed, 526 insertions, 549 deletions
diff --git a/xorg-server/Xext/shm.c b/xorg-server/Xext/shm.c
index 2127dee3e..7a73640dd 100644
--- a/xorg-server/Xext/shm.c
+++ b/xorg-server/Xext/shm.c
@@ -26,7 +26,6 @@ in this Software without prior written authorization from The Open Group.
/* THIS IS NOT AN X CONSORTIUM STANDARD OR AN X PROJECT TEAM SPECIFICATION */
-
#define SHM
#ifdef HAVE_DIX_CONFIG_H
@@ -108,20 +107,16 @@ typedef struct _ShmScrPrivateRec {
} ShmScrPrivateRec;
static PixmapPtr fbShmCreatePixmap(XSHM_CREATE_PIXMAP_ARGS);
-static int ShmDetachSegment(
- pointer /* value */,
- XID /* shmseg */
+static int ShmDetachSegment(pointer /* value */ ,
+ XID /* shmseg */
);
-static void ShmResetProc(
- ExtensionEntry * /* extEntry */
+static void ShmResetProc(ExtensionEntry * /* extEntry */
);
-static void SShmCompletionEvent(
- xShmCompletionEvent * /* from */,
- xShmCompletionEvent * /* to */
+static void SShmCompletionEvent(xShmCompletionEvent * /* from */ ,
+ xShmCompletionEvent * /* to */
);
-static Bool ShmDestroyPixmap (PixmapPtr pPixmap);
-
+static Bool ShmDestroyPixmap(PixmapPtr pPixmap);
static unsigned char ShmReqCode;
int ShmCompletionCode;
@@ -130,11 +125,13 @@ RESTYPE ShmSegType;
static ShmDescPtr Shmsegs;
static Bool sharedPixmaps;
static DevPrivateKeyRec shmScrPrivateKeyRec;
+
#define shmScrPrivateKey (&shmScrPrivateKeyRec)
static DevPrivateKeyRec shmPixmapPrivateKeyRec;
+
#define shmPixmapPrivateKey (&shmPixmapPrivateKeyRec)
-static ShmFuncs miFuncs = {NULL, NULL};
-static ShmFuncs fbFuncs = {fbShmCreatePixmap, NULL};
+static ShmFuncs miFuncs = { NULL, NULL };
+static ShmFuncs fbFuncs = { fbShmCreatePixmap, NULL };
#define ShmGetScreenPriv(s) ((ShmScrPrivateRec *)dixLookupPrivate(&(s)->devPrivates, shmScrPrivateKey))
@@ -167,7 +164,6 @@ static ShmFuncs fbFuncs = {fbShmCreatePixmap, NULL};
} \
}
-
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__CYGWIN__) || defined(__DragonFly__)
#include <sys/signal.h>
@@ -179,9 +175,10 @@ SigSysHandler(int signo)
badSysCall = TRUE;
}
-static Bool CheckForShmSyscall(void)
+static Bool
+CheckForShmSyscall(void)
{
- void (*oldHandler)(int);
+ void (*oldHandler) (int);
int shmid = -1;
/* If no SHM support in the kernel, the bad syscall will generate SIGSYS */
@@ -190,13 +187,11 @@ static Bool CheckForShmSyscall(void)
badSysCall = FALSE;
shmid = shmget(IPC_PRIVATE, 4096, IPC_CREAT);
- if (shmid != -1)
- {
+ if (shmid != -1) {
/* Successful allocation - clean up */
- shmctl(shmid, IPC_RMID, NULL);
+ shmctl(shmid, IPC_RMID, NULL);
}
- else
- {
+ else {
/* Allocation failed */
badSysCall = TRUE;
}
@@ -212,6 +207,7 @@ static Bool
ShmCloseScreen(int i, ScreenPtr pScreen)
{
ShmScrPrivateRec *screen_priv = ShmGetScreenPriv(pScreen);
+
pScreen->CloseScreen = screen_priv->CloseScreen;
dixSetPrivate(&pScreen->devPrivates, shmScrPrivateKey, NULL);
free(screen_priv);
@@ -222,12 +218,12 @@ static ShmScrPrivateRec *
ShmInitScreenPriv(ScreenPtr pScreen)
{
ShmScrPrivateRec *screen_priv = ShmGetScreenPriv(pScreen);
- if (!screen_priv)
- {
- screen_priv = calloc(1, sizeof (ShmScrPrivateRec));
- screen_priv->CloseScreen = pScreen->CloseScreen;
- dixSetPrivate(&pScreen->devPrivates, shmScrPrivateKey, screen_priv);
- pScreen->CloseScreen = ShmCloseScreen;
+
+ if (!screen_priv) {
+ screen_priv = calloc(1, sizeof(ShmScrPrivateRec));
+ screen_priv->CloseScreen = pScreen->CloseScreen;
+ dixSetPrivate(&pScreen->devPrivates, shmScrPrivateKey, screen_priv);
+ pScreen->CloseScreen = ShmCloseScreen;
}
return screen_priv;
}
@@ -236,44 +232,45 @@ static Bool
ShmRegisterPrivates(void)
{
if (!dixRegisterPrivateKey(&shmScrPrivateKeyRec, PRIVATE_SCREEN, 0))
- return FALSE;
+ return FALSE;
if (!dixRegisterPrivateKey(&shmPixmapPrivateKeyRec, PRIVATE_PIXMAP, 0))
- return FALSE;
+ return FALSE;
return TRUE;
}
-/*ARGSUSED*/
-static void
-ShmResetProc(ExtensionEntry *extEntry)
+ /*ARGSUSED*/ static void
+ShmResetProc(ExtensionEntry * extEntry)
{
int i;
+
for (i = 0; i < screenInfo.numScreens; i++)
- ShmRegisterFuncs(screenInfo.screens[i], NULL);
+ ShmRegisterFuncs(screenInfo.screens[i], NULL);
}
void
ShmRegisterFuncs(ScreenPtr pScreen, ShmFuncsPtr funcs)
{
if (!ShmRegisterPrivates())
- return;
+ return;
ShmInitScreenPriv(pScreen)->shmFuncs = funcs;
}
static Bool
-ShmDestroyPixmap (PixmapPtr pPixmap)
+ShmDestroyPixmap(PixmapPtr pPixmap)
{
- ScreenPtr pScreen = pPixmap->drawable.pScreen;
+ ScreenPtr pScreen = pPixmap->drawable.pScreen;
ShmScrPrivateRec *screen_priv = ShmGetScreenPriv(pScreen);
- Bool ret;
- if (pPixmap->refcnt == 1)
- {
- ShmDescPtr shmdesc;
- shmdesc = (ShmDescPtr)dixLookupPrivate(&pPixmap->devPrivates,
- shmPixmapPrivateKey);
- if (shmdesc)
- ShmDetachSegment ((pointer) shmdesc, pPixmap->drawable.id);
+ Bool ret;
+
+ if (pPixmap->refcnt == 1) {
+ ShmDescPtr shmdesc;
+
+ shmdesc = (ShmDescPtr) dixLookupPrivate(&pPixmap->devPrivates,
+ shmPixmapPrivateKey);
+ if (shmdesc)
+ ShmDetachSegment((pointer) shmdesc, pPixmap->drawable.id);
}
-
+
pScreen->DestroyPixmap = screen_priv->destroyPixmap;
ret = (*pScreen->DestroyPixmap) (pPixmap);
screen_priv->destroyPixmap = pScreen->DestroyPixmap;
@@ -306,14 +303,14 @@ ProcShmQueryVersion(ClientPtr client)
rep.gid = getegid();
#endif
if (client->swapped) {
- swaps(&rep.sequenceNumber);
- swapl(&rep.length);
- swaps(&rep.majorVersion);
- swaps(&rep.minorVersion);
- swaps(&rep.uid);
- swaps(&rep.gid);
+ swaps(&rep.sequenceNumber);
+ swapl(&rep.length);
+ swaps(&rep.majorVersion);
+ swaps(&rep.minorVersion);
+ swaps(&rep.uid);
+ swaps(&rep.gid);
}
- WriteToClient(client, sizeof(xShmQueryVersionReply), (char *)&rep);
+ WriteToClient(client, sizeof(xShmQueryVersionReply), (char *) &rep);
return Success;
}
@@ -322,66 +319,66 @@ ProcShmQueryVersion(ClientPtr client)
* using the credentials from the client if available
*/
static int
-shm_access(ClientPtr client, SHMPERM_TYPE *perm, int readonly)
+shm_access(ClientPtr client, SHMPERM_TYPE * perm, int readonly)
{
int uid, gid;
mode_t mask;
int uidset = 0, gidset = 0;
LocalClientCredRec *lcc;
-
+
if (GetLocalClientCreds(client, &lcc) != -1) {
- if (lcc->fieldsSet & LCC_UID_SET) {
- uid = lcc->euid;
- uidset = 1;
- }
- if (lcc->fieldsSet & LCC_GID_SET) {
- gid = lcc->egid;
- gidset = 1;
- }
+ if (lcc->fieldsSet & LCC_UID_SET) {
+ uid = lcc->euid;
+ uidset = 1;
+ }
+ if (lcc->fieldsSet & LCC_GID_SET) {
+ gid = lcc->egid;
+ gidset = 1;
+ }
#if defined(HAVE_GETZONEID) && defined(SHMPERM_ZONEID)
- if ( ((lcc->fieldsSet & LCC_ZID_SET) == 0) || (lcc->zoneid == -1)
- || (lcc->zoneid != SHMPERM_ZONEID(perm))) {
- uidset = 0;
- gidset = 0;
- }
+ if (((lcc->fieldsSet & LCC_ZID_SET) == 0) || (lcc->zoneid == -1)
+ || (lcc->zoneid != SHMPERM_ZONEID(perm))) {
+ uidset = 0;
+ gidset = 0;
+ }
#endif
- FreeLocalClientCreds(lcc);
-
- if (uidset) {
- /* User id 0 always gets access */
- if (uid == 0) {
- return 0;
- }
+ FreeLocalClientCreds(lcc);
+
+ if (uidset) {
+ /* User id 0 always gets access */
+ if (uid == 0) {
+ return 0;
+ }
#ifdef _MSC_VER
__asm int 3;
#else
- /* Check the owner */
- if (SHMPERM_UID(perm) == uid || SHMPERM_CUID(perm) == uid) {
- mask = S_IRUSR;
- if (!readonly) {
- mask |= S_IWUSR;
- }
- return (SHMPERM_MODE(perm) & mask) == mask ? 0 : -1;
- }
+ /* Check the owner */
+ if (SHMPERM_UID(perm) == uid || SHMPERM_CUID(perm) == uid) {
+ mask = S_IRUSR;
+ if (!readonly) {
+ mask |= S_IWUSR;
+ }
+ return (SHMPERM_MODE(perm) & mask) == mask ? 0 : -1;
+ }
#endif
- }
+ }
- if (gidset) {
- /* Check the group */
+ if (gidset) {
+ /* Check the group */
#ifdef _MSC_VER
__asm int 3;
#else
- if (SHMPERM_GID(perm) == gid || SHMPERM_CGID(perm) == gid) {
- mask = S_IRGRP;
- if (!readonly) {
- mask |= S_IWGRP;
- }
- return (SHMPERM_MODE(perm) & mask) == mask ? 0 : -1;
- }
+ if (SHMPERM_GID(perm) == gid || SHMPERM_CGID(perm) == gid) {
+ mask = S_IRGRP;
+ if (!readonly) {
+ mask |= S_IWGRP;
+ }
+ return (SHMPERM_MODE(perm) & mask) == mask ? 0 : -1;
+ }
#endif
- }
+ }
}
#ifdef _MSC_VER
__asm int 3;
@@ -390,7 +387,7 @@ shm_access(ClientPtr client, SHMPERM_TYPE *perm, int readonly)
/* Otherwise, check everyone else */
mask = S_IROTH;
if (!readonly) {
- mask |= S_IWOTH;
+ mask |= S_IWOTH;
}
return (SHMPERM_MODE(perm) & mask) == mask ? 0 : -1;
#endif
@@ -401,76 +398,68 @@ ProcShmAttach(ClientPtr client)
{
SHMSTAT_TYPE 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;
+ 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++;
+ shmdesc && (shmdesc->shmid != stuff->shmid); shmdesc = shmdesc->next);
+ if (shmdesc) {
+ if (!stuff->readOnly && !shmdesc->writable)
+ return BadAccess;
+ shmdesc->refcnt++;
}
- else
- {
- shmdesc = malloc(sizeof(ShmDescRec));
- if (!shmdesc)
- return BadAlloc;
- shmdesc->addr = shmat(stuff->shmid, 0,
- stuff->readOnly ? SHM_RDONLY : 0);
- if ((shmdesc->addr == ((char *)-1)) ||
- SHMSTAT(stuff->shmid, &buf))
- {
- free(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, &(SHM_PERM(buf)), stuff->readOnly) == -1) {
- shmdt(shmdesc->addr);
- free(shmdesc);
- return BadAccess;
- }
-
- shmdesc->shmid = stuff->shmid;
- shmdesc->refcnt = 1;
- shmdesc->writable = !stuff->readOnly;
- shmdesc->size = SHM_SEGSZ(buf);
- shmdesc->next = Shmsegs;
- Shmsegs = shmdesc;
+ else {
+ shmdesc = malloc(sizeof(ShmDescRec));
+ if (!shmdesc)
+ return BadAlloc;
+ shmdesc->addr = shmat(stuff->shmid, 0,
+ stuff->readOnly ? SHM_RDONLY : 0);
+ if ((shmdesc->addr == ((char *) -1)) || SHMSTAT(stuff->shmid, &buf)) {
+ free(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, &(SHM_PERM(buf)), stuff->readOnly) == -1) {
+ shmdt(shmdesc->addr);
+ free(shmdesc);
+ return BadAccess;
+ }
+
+ shmdesc->shmid = stuff->shmid;
+ shmdesc->refcnt = 1;
+ shmdesc->writable = !stuff->readOnly;
+ shmdesc->size = SHM_SEGSZ(buf);
+ shmdesc->next = Shmsegs;
+ Shmsegs = shmdesc;
}
- if (!AddResource(stuff->shmseg, ShmSegType, (pointer)shmdesc))
- return BadAlloc;
+ if (!AddResource(stuff->shmseg, ShmSegType, (pointer) shmdesc))
+ return BadAlloc;
return Success;
}
-/*ARGSUSED*/
-static int
+ /*ARGSUSED*/ static int
ShmDetachSegment(pointer value, /* must conform to DeleteType */
- XID shmseg)
+ XID shmseg)
{
- ShmDescPtr shmdesc = (ShmDescPtr)value;
+ ShmDescPtr shmdesc = (ShmDescPtr) value;
ShmDescPtr *prev;
if (--shmdesc->refcnt)
- return TRUE;
+ return TRUE;
#ifndef _MSC_VER
shmdt(shmdesc->addr);
#endif
- for (prev = &Shmsegs; *prev != shmdesc; prev = &(*prev)->next)
- ;
+ for (prev = &Shmsegs; *prev != shmdesc; prev = &(*prev)->next);
*prev = shmdesc->next;
free(shmdesc);
return Success;
@@ -480,6 +469,7 @@ static int
ProcShmDetach(ClientPtr client)
{
ShmDescPtr shmdesc;
+
REQUEST(xShmDetachReq);
REQUEST_SIZE_MATCH(xShmDetachReq);
@@ -494,44 +484,47 @@ ProcShmDetach(ClientPtr client)
*/
static void
doShmPutImage(DrawablePtr dst, GCPtr pGC,
- int depth, unsigned int format,
- int w, int h, int sx, int sy, int sw, int sh, int dx, int dy,
- char *data)
+ int depth, unsigned int format,
+ int w, int h, int sx, int sy, int sw, int sh, int dx, int dy,
+ char *data)
{
PixmapPtr pPixmap;
if (format == ZPixmap || (format == XYPixmap && depth == 1)) {
- pPixmap = GetScratchPixmapHeader(dst->pScreen, w, h, depth,
- BitsPerPixel(depth),
- PixmapBytePad(w, depth),
- data);
- if (!pPixmap)
- return;
- pGC->ops->CopyArea((DrawablePtr)pPixmap, dst, pGC, sx, sy, sw, sh, dx, dy);
- FreeScratchPixmapHeader(pPixmap);
- } else {
- GCPtr putGC = GetScratchGC(depth, dst->pScreen);
-
- if (!putGC)
- return;
-
- pPixmap = (*dst->pScreen->CreatePixmap)(dst->pScreen, sw, sh, depth,
- CREATE_PIXMAP_USAGE_SCRATCH);
- if (!pPixmap) {
- FreeScratchGC(putGC);
- return;
- }
- ValidateGC(&pPixmap->drawable, putGC);
- (*putGC->ops->PutImage)(&pPixmap->drawable, putGC, depth, -sx, -sy, w, h, 0,
- (format == XYPixmap) ? XYPixmap : ZPixmap, data);
- FreeScratchGC(putGC);
- if (format == XYBitmap)
- (void)(*pGC->ops->CopyPlane)(&pPixmap->drawable, dst, pGC, 0, 0, sw, sh,
- dx, dy, 1L);
- else
- (void)(*pGC->ops->CopyArea)(&pPixmap->drawable, dst, pGC, 0, 0, sw, sh,
- dx, dy);
- (*pPixmap->drawable.pScreen->DestroyPixmap)(pPixmap);
+ pPixmap = GetScratchPixmapHeader(dst->pScreen, w, h, depth,
+ BitsPerPixel(depth),
+ PixmapBytePad(w, depth), data);
+ if (!pPixmap)
+ return;
+ pGC->ops->CopyArea((DrawablePtr) pPixmap, dst, pGC, sx, sy, sw, sh, dx,
+ dy);
+ FreeScratchPixmapHeader(pPixmap);
+ }
+ else {
+ GCPtr putGC = GetScratchGC(depth, dst->pScreen);
+
+ if (!putGC)
+ return;
+
+ pPixmap = (*dst->pScreen->CreatePixmap) (dst->pScreen, sw, sh, depth,
+ CREATE_PIXMAP_USAGE_SCRATCH);
+ if (!pPixmap) {
+ FreeScratchGC(putGC);
+ return;
+ }
+ ValidateGC(&pPixmap->drawable, putGC);
+ (*putGC->ops->PutImage) (&pPixmap->drawable, putGC, depth, -sx, -sy, w,
+ h, 0,
+ (format == XYPixmap) ? XYPixmap : ZPixmap,
+ data);
+ FreeScratchGC(putGC);
+ if (format == XYBitmap)
+ (void) (*pGC->ops->CopyPlane) (&pPixmap->drawable, dst, pGC, 0, 0,
+ sw, sh, dx, dy, 1L);
+ else
+ (void) (*pGC->ops->CopyArea) (&pPixmap->drawable, dst, pGC, 0, 0,
+ sw, sh, dx, dy);
+ (*pPixmap->drawable.pScreen->DestroyPixmap) (pPixmap);
}
}
@@ -542,35 +535,32 @@ ProcShmPutImage(ClientPtr client)
DrawablePtr pDraw;
long length;
ShmDescPtr shmdesc;
+
REQUEST(xShmPutImageReq);
REQUEST_SIZE_MATCH(xShmPutImageReq);
VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
VERIFY_SHMPTR(stuff->shmseg, stuff->offset, FALSE, shmdesc, client);
if ((stuff->sendEvent != xTrue) && (stuff->sendEvent != xFalse))
- return BadValue;
- if (stuff->format == XYBitmap)
- {
+ return BadValue;
+ if (stuff->format == XYBitmap) {
if (stuff->depth != 1)
return BadMatch;
length = PixmapBytePad(stuff->totalWidth, 1);
}
- else if (stuff->format == XYPixmap)
- {
+ else if (stuff->format == XYPixmap) {
if (pDraw->depth != stuff->depth)
return BadMatch;
length = PixmapBytePad(stuff->totalWidth, 1);
- length *= stuff->depth;
+ length *= stuff->depth;
}
- else if (stuff->format == ZPixmap)
- {
+ else if (stuff->format == ZPixmap) {
if (pDraw->depth != stuff->depth)
return BadMatch;
length = PixmapBytePad(stuff->totalWidth, stuff->depth);
}
- else
- {
- client->errorValue = stuff->format;
+ else {
+ client->errorValue = stuff->format;
return BadValue;
}
@@ -581,63 +571,57 @@ ProcShmPutImage(ClientPtr client)
* the version below ought to avoid it
*/
if (stuff->totalHeight != 0 &&
- length > (shmdesc->size - stuff->offset)/stuff->totalHeight) {
- client->errorValue = stuff->totalWidth;
- return BadValue;
+ length > (shmdesc->size - stuff->offset) / stuff->totalHeight) {
+ client->errorValue = stuff->totalWidth;
+ return BadValue;
}
- if (stuff->srcX > stuff->totalWidth)
- {
- client->errorValue = stuff->srcX;
- return BadValue;
+ if (stuff->srcX > stuff->totalWidth) {
+ client->errorValue = stuff->srcX;
+ return BadValue;
}
- if (stuff->srcY > stuff->totalHeight)
- {
- client->errorValue = stuff->srcY;
- 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->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->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));
+ ((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
- doShmPutImage(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.minorEvent = X_ShmPutImage;
- ev.majorEvent = ShmReqCode;
- ev.shmseg = stuff->shmseg;
- ev.offset = stuff->offset;
- WriteEventsToClient(client, 1, (xEvent *) &ev);
+ doShmPutImage(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.minorEvent = X_ShmPutImage;
+ ev.majorEvent = ShmReqCode;
+ ev.shmseg = stuff->shmseg;
+ ev.offset = stuff->offset;
+ WriteEventsToClient(client, 1, (xEvent *) &ev);
}
return Success;
@@ -646,133 +630,120 @@ ProcShmPutImage(ClientPtr client)
static int
ProcShmGetImage(ClientPtr client)
{
- DrawablePtr pDraw;
- long lenPer = 0, length;
- Mask plane = 0;
- xShmGetImageReply xgi;
- ShmDescPtr shmdesc;
- int rc;
+ DrawablePtr pDraw;
+ long lenPer = 0, length;
+ Mask plane = 0;
+ xShmGetImageReply xgi;
+ ShmDescPtr shmdesc;
+ int rc;
REQUEST(xShmGetImageReq);
REQUEST_SIZE_MATCH(xShmGetImageReq);
- if ((stuff->format != XYPixmap) && (stuff->format != ZPixmap))
- {
- client->errorValue = stuff->format;
+ if ((stuff->format != XYPixmap) && (stuff->format != ZPixmap)) {
+ client->errorValue = stuff->format;
return BadValue;
}
- rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0,
- DixReadAccess);
+ rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0, DixReadAccess);
if (rc != Success)
- return rc;
+ return rc;
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));
+ 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;
+ 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;
+ 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)));
+ 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 */
+ 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 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
- {
+ 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;
- }
- }
+ 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);
- swapl(&xgi.length);
- swapl(&xgi.visual);
- swapl(&xgi.size);
+ swaps(&xgi.sequenceNumber);
+ swapl(&xgi.length);
+ swapl(&xgi.visual);
+ swapl(&xgi.size);
}
- WriteToClient(client, sizeof(xShmGetImageReply), (char *)&xgi);
+ WriteToClient(client, sizeof(xShmGetImageReply), (char *) &xgi);
return Success;
}
#ifdef PANORAMIX
-static int
+static int
ProcPanoramiXShmPutImage(ClientPtr client)
{
- int j, result, orig_x, orig_y;
- PanoramiXRes *draw, *gc;
- Bool sendEvent, isRoot;
+ int j, result, orig_x, orig_y;
+ PanoramiXRes *draw, *gc;
+ Bool sendEvent, isRoot;
REQUEST(xShmPutImageReq);
REQUEST_SIZE_MATCH(xShmPutImageReq);
- result = dixLookupResourceByClass((pointer *)&draw, stuff->drawable,
- XRC_DRAWABLE, client, DixWriteAccess);
+ result = dixLookupResourceByClass((pointer *) &draw, stuff->drawable,
+ XRC_DRAWABLE, client, DixWriteAccess);
if (result != Success)
return (result == BadValue) ? BadDrawable : result;
- result = dixLookupResourceByType((pointer *)&gc, stuff->gc,
- XRT_GC, client, DixReadAccess);
+ result = dixLookupResourceByType((pointer *) &gc, stuff->gc,
+ XRT_GC, client, DixReadAccess);
if (result != Success)
return result;
@@ -783,53 +754,54 @@ ProcPanoramiXShmPutImage(ClientPtr client)
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 - screenInfo.screens[j]->x;
- stuff->dstY = orig_y - screenInfo.screens[j]->y;
- }
- result = ProcShmPutImage(client);
- if(result != Success) break;
+ if (!j)
+ stuff->sendEvent = sendEvent;
+ stuff->drawable = draw->info[j].id;
+ stuff->gc = gc->info[j].id;
+ if (isRoot) {
+ stuff->dstX = orig_x - screenInfo.screens[j]->x;
+ stuff->dstY = orig_y - screenInfo.screens[j]->y;
+ }
+ result = ProcShmPutImage(client);
+ if (result != Success)
+ break;
}
return result;
}
-static int
+static int
ProcPanoramiXShmGetImage(ClientPtr client)
{
- PanoramiXRes *draw;
- DrawablePtr *drawables;
- DrawablePtr pDraw;
- xShmGetImageReply xgi;
- ShmDescPtr shmdesc;
- int i, x, y, w, h, format, rc;
- Mask plane = 0, planemask;
- long lenPer = 0, length, widthBytesLine;
- Bool isRoot;
+ PanoramiXRes *draw;
+ DrawablePtr *drawables;
+ DrawablePtr pDraw;
+ xShmGetImageReply xgi;
+ ShmDescPtr shmdesc;
+ int i, x, y, w, h, format, rc;
+ 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;
+ client->errorValue = stuff->format;
return BadValue;
}
- rc = dixLookupResourceByClass((pointer *)&draw, stuff->drawable,
- XRC_DRAWABLE, client, DixWriteAccess);
+ rc = dixLookupResourceByClass((pointer *) &draw, stuff->drawable,
+ XRC_DRAWABLE, client, DixWriteAccess);
if (rc != Success)
- return (rc == BadValue) ? BadDrawable : rc;
+ return (rc == BadValue) ? BadDrawable : rc;
if (draw->type == XRT_PIXMAP)
- return ProcShmGetImage(client);
+ return ProcShmGetImage(client);
- rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0,
- DixReadAccess);
+ rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0, DixReadAccess);
if (rc != Success)
- return rc;
+ return rc;
VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client);
@@ -842,85 +814,89 @@ ProcPanoramiXShmGetImage(ClientPtr client)
isRoot = (draw->type == XRT_WINDOW) && draw->u.win.root;
- 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 */
- screenInfo.screens[0]->x + pDraw->x + x < 0 ||
- screenInfo.screens[0]->x + pDraw->x + x + w > PanoramiXPixWidth ||
- screenInfo.screens[0]->y + pDraw->y + y < 0 ||
- screenInfo.screens[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;
+ 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 */
+ screenInfo.screens[0]->x + pDraw->x + x < 0 ||
+ screenInfo.screens[0]->x + pDraw->x + x + w > PanoramiXPixWidth
+ || screenInfo.screens[0]->y + pDraw->y + y < 0 ||
+ screenInfo.screens[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 = calloc(PanoramiXNumScreens, sizeof(DrawablePtr));
- if(!drawables)
- return BadAlloc;
+ if (!drawables)
+ return BadAlloc;
drawables[0] = pDraw;
FOR_NSCREENS_FORWARD_SKIP(i) {
- rc = dixLookupDrawable(drawables+i, draw->info[i].id, client, 0,
- DixReadAccess);
- if (rc != Success)
- {
- free(drawables);
- return rc;
- }
+ rc = dixLookupDrawable(drawables + i, draw->info[i].id, client, 0,
+ DixReadAccess);
+ if (rc != Success) {
+ free(drawables);
+ return rc;
+ }
}
- xgi.visual = wVisual(((WindowPtr)pDraw));
+ 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)));
+ 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 */ }
+ 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 {
+ XineramaGetImageData(drawables, x, y, w, h, format, planemask,
+ shmdesc->addr + stuff->offset,
+ widthBytesLine, isRoot);
+ }
+ else {
- length = stuff->offset;
+ 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 (planemask & plane) {
+ XineramaGetImageData(drawables, x, y, w, h,
+ format, plane, shmdesc->addr + length,
+ widthBytesLine, isRoot);
+ length += lenPer;
+ }
+ }
}
free(drawables);
-
+
if (client->swapped) {
- swaps(&xgi.sequenceNumber);
- swapl(&xgi.length);
- swapl(&xgi.visual);
- swapl(&xgi.size);
+ swaps(&xgi.sequenceNumber);
+ swapl(&xgi.length);
+ swapl(&xgi.visual);
+ swapl(&xgi.size);
}
- WriteToClient(client, sizeof(xShmGetImageReply), (char *)&xgi);
+ WriteToClient(client, sizeof(xShmGetImageReply), (char *) &xgi);
return Success;
}
@@ -934,6 +910,7 @@ ProcPanoramiXShmCreatePixmap(ClientPtr client)
DepthPtr pDepth;
int i, j, result, rc;
ShmDescPtr shmdesc;
+
REQUEST(xShmCreatePixmapReq);
unsigned int width, height, depth;
unsigned long size;
@@ -942,37 +919,35 @@ ProcPanoramiXShmCreatePixmap(ClientPtr client)
REQUEST_SIZE_MATCH(xShmCreatePixmapReq);
client->errorValue = stuff->pid;
if (!sharedPixmaps)
- return BadImplementation;
+ return BadImplementation;
LEGAL_NEW_RESOURCE(stuff->pid, client);
rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY,
- DixGetAttrAccess);
+ DixGetAttrAccess);
if (rc != Success)
- return rc;
+ return rc;
VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client);
width = stuff->width;
height = stuff->height;
depth = stuff->depth;
- if (!width || !height || !depth)
- {
- client->errorValue = 0;
+ if (!width || !height || !depth) {
+ client->errorValue = 0;
return BadValue;
}
if (width > 32767 || height > 32767)
return BadAlloc;
- if (stuff->depth != 1)
- {
+ 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;
+ for (i = 0; i < pDraw->pScreen->numDepths; i++, pDepth++)
+ if (pDepth->depth == stuff->depth)
+ goto CreatePmap;
+ client->errorValue = stuff->depth;
return BadValue;
}
-CreatePmap:
+ CreatePmap:
size = PixmapBytePad(width, depth) * height;
if (sizeof(size) == 4 && BitsPerPixel(depth) > 8) {
if (size < width * height)
@@ -980,12 +955,12 @@ CreatePmap:
}
/* thankfully, offset is unsigned */
if (stuff->offset + size < size)
- return BadAlloc;
+ return BadAlloc;
VERIFY_SHMSIZE(shmdesc, stuff->offset, size, client);
- if(!(newPix = malloc(sizeof(PanoramiXRes))))
- return BadAlloc;
+ if (!(newPix = malloc(sizeof(PanoramiXRes))))
+ return BadAlloc;
newPix->type = XRT_PIXMAP;
newPix->u.pix.shared = TRUE;
@@ -994,54 +969,62 @@ CreatePmap:
result = Success;
FOR_NSCREENS(j) {
- ShmScrPrivateRec *screen_priv;
- pScreen = screenInfo.screens[j];
+ ShmScrPrivateRec *screen_priv;
+
+ pScreen = screenInfo.screens[j];
- screen_priv = ShmGetScreenPriv(pScreen);
- pMap = (*screen_priv->shmFuncs->CreatePixmap)(pScreen,
- stuff->width, stuff->height, stuff->depth,
- shmdesc->addr + stuff->offset);
+ screen_priv = ShmGetScreenPriv(pScreen);
+ pMap = (*screen_priv->shmFuncs->CreatePixmap) (pScreen,
+ stuff->width,
+ stuff->height,
+ stuff->depth,
+ shmdesc->addr +
+ stuff->offset);
- if (pMap) {
- dixSetPrivate(&pMap->devPrivates, shmPixmapPrivateKey, shmdesc);
+ if (pMap) {
+ dixSetPrivate(&pMap->devPrivates, shmPixmapPrivateKey, shmdesc);
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)) {
- result = BadAlloc;
- break;
- }
- } else {
- result = BadAlloc;
- break;
- }
+ pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+ pMap->drawable.id = newPix->info[j].id;
+ if (!AddResource(newPix->info[j].id, RT_PIXMAP, (pointer) pMap)) {
+ result = BadAlloc;
+ break;
+ }
+ }
+ else {
+ result = BadAlloc;
+ break;
+ }
}
- if(result == BadAlloc) {
- while(j--)
- FreeResource(newPix->info[j].id, RT_NONE);
- free(newPix);
- } else
- AddResource(stuff->pid, XRT_PIXMAP, newPix);
+ if (result == BadAlloc) {
+ while (j--)
+ FreeResource(newPix->info[j].id, RT_NONE);
+ free(newPix);
+ }
+ else
+ AddResource(stuff->pid, XRT_PIXMAP, newPix);
return result;
}
#endif
static PixmapPtr
-fbShmCreatePixmap (ScreenPtr pScreen,
- int width, int height, int depth, char *addr)
+fbShmCreatePixmap(ScreenPtr pScreen,
+ int width, int height, int depth, char *addr)
{
PixmapPtr pPixmap;
- pPixmap = (*pScreen->CreatePixmap)(pScreen, 0, 0, pScreen->rootDepth, 0);
+ pPixmap = (*pScreen->CreatePixmap) (pScreen, 0, 0, pScreen->rootDepth, 0);
if (!pPixmap)
- return NullPixmap;
-
- if (!(*pScreen->ModifyPixmapHeader)(pPixmap, width, height, depth,
- BitsPerPixel(depth), PixmapBytePad(width, depth), (pointer)addr)) {
- (*pScreen->DestroyPixmap)(pPixmap);
- return NullPixmap;
+ return NullPixmap;
+
+ if (!(*pScreen->ModifyPixmapHeader) (pPixmap, width, height, depth,
+ BitsPerPixel(depth),
+ PixmapBytePad(width, depth),
+ (pointer) addr)) {
+ (*pScreen->DestroyPixmap) (pPixmap);
+ return NullPixmap;
}
return pPixmap;
}
@@ -1055,6 +1038,7 @@ ProcShmCreatePixmap(ClientPtr client)
int i, rc;
ShmDescPtr shmdesc;
ShmScrPrivateRec *screen_priv;
+
REQUEST(xShmCreatePixmapReq);
unsigned int width, height, depth;
unsigned long size;
@@ -1062,109 +1046,104 @@ ProcShmCreatePixmap(ClientPtr client)
REQUEST_SIZE_MATCH(xShmCreatePixmapReq);
client->errorValue = stuff->pid;
if (!sharedPixmaps)
- return BadImplementation;
+ return BadImplementation;
LEGAL_NEW_RESOURCE(stuff->pid, client);
rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY,
- DixGetAttrAccess);
+ DixGetAttrAccess);
if (rc != Success)
- return rc;
+ return rc;
VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client);
-
+
width = stuff->width;
height = stuff->height;
depth = stuff->depth;
- if (!width || !height || !depth)
- {
- client->errorValue = 0;
+ if (!width || !height || !depth) {
+ client->errorValue = 0;
return BadValue;
}
if (width > 32767 || height > 32767)
- return BadAlloc;
+ return BadAlloc;
- if (stuff->depth != 1)
- {
+ 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;
+ for (i = 0; i < pDraw->pScreen->numDepths; i++, pDepth++)
+ if (pDepth->depth == stuff->depth)
+ goto CreatePmap;
+ client->errorValue = stuff->depth;
return BadValue;
}
-CreatePmap:
+ CreatePmap:
size = PixmapBytePad(width, depth) * height;
if (sizeof(size) == 4 && BitsPerPixel(depth) > 8) {
- if (size < width * height)
- return BadAlloc;
+ if (size < width * height)
+ return BadAlloc;
}
/* thankfully, offset is unsigned */
if (stuff->offset + size < size)
- return BadAlloc;
+ return BadAlloc;
VERIFY_SHMSIZE(shmdesc, stuff->offset, size, client);
screen_priv = ShmGetScreenPriv(pDraw->pScreen);
- pMap = (*screen_priv->shmFuncs->CreatePixmap)(
- pDraw->pScreen, stuff->width,
- stuff->height, stuff->depth,
- shmdesc->addr + stuff->offset);
- if (pMap)
- {
- rc = XaceHook(XACE_RESOURCE_ACCESS, client, stuff->pid, RT_PIXMAP,
- pMap, RT_NONE, NULL, DixCreateAccess);
- if (rc != Success) {
- pDraw->pScreen->DestroyPixmap(pMap);
- return rc;
- }
- dixSetPrivate(&pMap->devPrivates, shmPixmapPrivateKey, shmdesc);
- shmdesc->refcnt++;
- pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
- pMap->drawable.id = stuff->pid;
- if (AddResource(stuff->pid, RT_PIXMAP, (pointer)pMap))
- {
- return Success;
- }
+ pMap = (*screen_priv->shmFuncs->CreatePixmap) (pDraw->pScreen, stuff->width,
+ stuff->height, stuff->depth,
+ shmdesc->addr +
+ stuff->offset);
+ if (pMap) {
+ rc = XaceHook(XACE_RESOURCE_ACCESS, client, stuff->pid, RT_PIXMAP,
+ pMap, RT_NONE, NULL, DixCreateAccess);
+ if (rc != Success) {
+ pDraw->pScreen->DestroyPixmap(pMap);
+ return rc;
+ }
+ dixSetPrivate(&pMap->devPrivates, shmPixmapPrivateKey, shmdesc);
+ shmdesc->refcnt++;
+ pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+ pMap->drawable.id = stuff->pid;
+ if (AddResource(stuff->pid, RT_PIXMAP, (pointer) pMap)) {
+ return Success;
+ }
}
return BadAlloc;
}
static int
-ProcShmDispatch (ClientPtr client)
+ProcShmDispatch(ClientPtr client)
{
REQUEST(xReq);
- switch (stuff->data)
- {
+ switch (stuff->data) {
case X_ShmQueryVersion:
- return ProcShmQueryVersion(client);
+ return ProcShmQueryVersion(client);
case X_ShmAttach:
- return ProcShmAttach(client);
+ return ProcShmAttach(client);
case X_ShmDetach:
- return ProcShmDetach(client);
+ return ProcShmDetach(client);
case X_ShmPutImage:
#ifdef PANORAMIX
- if ( !noPanoramiXExtension )
- return ProcPanoramiXShmPutImage(client);
+ if (!noPanoramiXExtension)
+ return ProcPanoramiXShmPutImage(client);
#endif
- return ProcShmPutImage(client);
+ return ProcShmPutImage(client);
case X_ShmGetImage:
#ifdef PANORAMIX
- if ( !noPanoramiXExtension )
- return ProcPanoramiXShmGetImage(client);
+ if (!noPanoramiXExtension)
+ return ProcPanoramiXShmGetImage(client);
#endif
- return ProcShmGetImage(client);
+ return ProcShmGetImage(client);
case X_ShmCreatePixmap:
#ifdef PANORAMIX
- if ( !noPanoramiXExtension )
- return ProcPanoramiXShmCreatePixmap(client);
+ if (!noPanoramiXExtension)
+ return ProcPanoramiXShmCreatePixmap(client);
#endif
- return ProcShmCreatePixmap(client);
+ return ProcShmCreatePixmap(client);
default:
- return BadRequest;
+ return BadRequest;
}
}
static void
-SShmCompletionEvent(xShmCompletionEvent *from, xShmCompletionEvent *to)
+SShmCompletionEvent(xShmCompletionEvent * from, xShmCompletionEvent * to)
{
to->type = from->type;
cpswaps(from->sequenceNumber, to->sequenceNumber);
@@ -1259,25 +1238,24 @@ SProcShmCreatePixmap(ClientPtr client)
}
static int
-SProcShmDispatch (ClientPtr client)
+SProcShmDispatch(ClientPtr client)
{
REQUEST(xReq);
- switch (stuff->data)
- {
+ switch (stuff->data) {
case X_ShmQueryVersion:
- return SProcShmQueryVersion(client);
+ return SProcShmQueryVersion(client);
case X_ShmAttach:
- return SProcShmAttach(client);
+ return SProcShmAttach(client);
case X_ShmDetach:
- return SProcShmDetach(client);
+ return SProcShmDetach(client);
case X_ShmPutImage:
- return SProcShmPutImage(client);
+ return SProcShmPutImage(client);
case X_ShmGetImage:
- return SProcShmGetImage(client);
+ return SProcShmGetImage(client);
case X_ShmCreatePixmap:
- return SProcShmCreatePixmap(client);
+ return SProcShmCreatePixmap(client);
default:
- return BadRequest;
+ return BadRequest;
}
}
@@ -1288,45 +1266,44 @@ ShmExtensionInit(INITARGS)
int i;
#ifdef MUST_CHECK_FOR_SHM_SYSCALL
- if (!CheckForShmSyscall())
- {
- ErrorF("MIT-SHM extension disabled due to lack of kernel support\n");
- return;
+ if (!CheckForShmSyscall()) {
+ ErrorF("MIT-SHM extension disabled due to lack of kernel support\n");
+ return;
}
#endif
if (!ShmRegisterPrivates())
- return;
+ return;
sharedPixmaps = xFalse;
{
- sharedPixmaps = xTrue;
- for (i = 0; i < screenInfo.numScreens; i++)
- {
- ShmScrPrivateRec *screen_priv = ShmInitScreenPriv(screenInfo.screens[i]);
- if (!screen_priv->shmFuncs)
- screen_priv->shmFuncs = &miFuncs;
- if (!screen_priv->shmFuncs->CreatePixmap)
- sharedPixmaps = xFalse;
- }
- if (sharedPixmaps)
- for (i = 0; i < screenInfo.numScreens; i++)
- {
- ShmScrPrivateRec *screen_priv = ShmGetScreenPriv(screenInfo.screens[i]);
- screen_priv->destroyPixmap = screenInfo.screens[i]->DestroyPixmap;
- screenInfo.screens[i]->DestroyPixmap = ShmDestroyPixmap;
- }
+ sharedPixmaps = xTrue;
+ for (i = 0; i < screenInfo.numScreens; i++) {
+ ShmScrPrivateRec *screen_priv =
+ ShmInitScreenPriv(screenInfo.screens[i]);
+ if (!screen_priv->shmFuncs)
+ screen_priv->shmFuncs = &miFuncs;
+ if (!screen_priv->shmFuncs->CreatePixmap)
+ sharedPixmaps = xFalse;
+ }
+ if (sharedPixmaps)
+ for (i = 0; i < screenInfo.numScreens; i++) {
+ ShmScrPrivateRec *screen_priv =
+ ShmGetScreenPriv(screenInfo.screens[i]);
+ screen_priv->destroyPixmap =
+ screenInfo.screens[i]->DestroyPixmap;
+ screenInfo.screens[i]->DestroyPixmap = ShmDestroyPixmap;
+ }
}
ShmSegType = CreateNewResourceType(ShmDetachSegment, "ShmSeg");
if (ShmSegType &&
- (extEntry = AddExtension(SHMNAME, ShmNumberEvents, ShmNumberErrors,
- ProcShmDispatch, SProcShmDispatch,
- ShmResetProc, StandardMinorOpcode)))
- {
- ShmReqCode = (unsigned char)extEntry->base;
- ShmCompletionCode = extEntry->eventBase;
- BadShmSegCode = extEntry->errorBase;
- SetResourceTypeErrorValue(ShmSegType, BadShmSegCode);
- EventSwapVector[ShmCompletionCode] = (EventSwapPtr) SShmCompletionEvent;
+ (extEntry = AddExtension(SHMNAME, ShmNumberEvents, ShmNumberErrors,
+ ProcShmDispatch, SProcShmDispatch,
+ ShmResetProc, StandardMinorOpcode))) {
+ ShmReqCode = (unsigned char) extEntry->base;
+ ShmCompletionCode = extEntry->eventBase;
+ BadShmSegCode = extEntry->errorBase;
+ SetResourceTypeErrorValue(ShmSegType, BadShmSegCode);
+ EventSwapVector[ShmCompletionCode] = (EventSwapPtr) SShmCompletionEvent;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 02:55:29 +0000