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Diffstat (limited to 'nx-X11/programs/Xserver/hw/nxagent/NXshm.c')
-rw-r--r--nx-X11/programs/Xserver/hw/nxagent/NXshm.c547
1 files changed, 547 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXshm.c b/nx-X11/programs/Xserver/hw/nxagent/NXshm.c
new file mode 100644
index 000000000..2ffca8066
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/nxagent/NXshm.c
@@ -0,0 +1,547 @@
+/**************************************************************************/
+/* */
+/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */
+/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */
+/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/
+/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de> */
+/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de> */
+/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */
+/* */
+/* NXAGENT, NX protocol compression and NX extensions to this software */
+/* are copyright of the aforementioned persons and companies. */
+/* */
+/* Redistribution and use of the present software is allowed according */
+/* to terms specified in the file LICENSE which comes in the source */
+/* distribution. */
+/* */
+/* All rights reserved. */
+/* */
+/* NOTE: This software has received contributions from various other */
+/* contributors, only the core maintainers and supporters are listed as */
+/* copyright holders. Please contact us, if you feel you should be listed */
+/* as copyright holder, as well. */
+/* */
+/**************************************************************************/
+
+/************************************************************
+
+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.
+
+********************************************************/
+
+/* THIS IS NOT AN X CONSORTIUM STANDARD OR AN X PROJECT TEAM SPECIFICATION */
+
+
+#include <nx-X11/X.h>
+#include "Trap.h"
+#include "Agent.h"
+
+#include "Drawable.h"
+#include "Pixmaps.h"
+
+#include "../../Xext/shm.c"
+
+/*
+ * Set here the required log level.
+ */
+
+#define PANIC
+#define WARNING
+#undef TEST
+#undef DEBUG
+
+#ifdef TEST
+#include "Literals.h"
+#endif
+
+extern void fbGetImage(DrawablePtr pDrw, int x, int y, int w, int h,
+ unsigned int format, unsigned long planeMask, char *d);
+
+extern void fbPutImage (DrawablePtr pDrawable, GCPtr pGC, int depth,
+ int x, int y, int w, int h, int leftPad, int format,
+ char *pImage);
+
+void
+ShmExtensionInit(void)
+{
+ ExtensionEntry *extEntry;
+ int i;
+
+#ifdef MUST_CHECK_FOR_SHM_SYSCALL
+ if (!CheckForShmSyscall())
+ {
+ ErrorF("MIT-SHM extension disabled due to lack of kernel support\n");
+ return;
+ }
+#endif
+
+ if (nxagentOption(SharedMemory) == False)
+ {
+ return;
+ }
+
+ sharedPixmaps = xFalse;
+ pixmapFormat = 0;
+ {
+ sharedPixmaps = nxagentOption(SharedPixmaps);
+ pixmapFormat = shmPixFormat[0];
+ for (i = 0; i < screenInfo.numScreens; i++)
+ {
+ if (!shmFuncs[i])
+ {
+ #ifdef TEST
+ fprintf(stderr, "ShmExtensionInit: Registering shmFuncs as miFuncs.\n");
+ #endif
+ shmFuncs[i] = &miFuncs;
+ }
+ if (!shmFuncs[i]->CreatePixmap)
+ sharedPixmaps = xFalse;
+ if (shmPixFormat[i] && (shmPixFormat[i] != pixmapFormat))
+ {
+ sharedPixmaps = xFalse;
+ pixmapFormat = 0;
+ }
+ }
+ 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);
+ if (ShmSegType &&
+ (extEntry = AddExtension(SHMNAME, ShmNumberEvents, ShmNumberErrors,
+ ProcShmDispatch, SProcShmDispatch,
+ ShmResetProc, StandardMinorOpcode)))
+ {
+ ShmReqCode = (unsigned char)extEntry->base;
+ ShmCompletionCode = extEntry->eventBase;
+ BadShmSegCode = extEntry->errorBase;
+ EventSwapVector[ShmCompletionCode] = (EventSwapPtr) SShmCompletionEvent;
+ }
+}
+
+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;
+
+ nxagentShmTrap = 0;
+ putGC = GetScratchGC(depth, dst->pScreen);
+ if (!putGC)
+ {
+ nxagentShmTrap = 1;
+ return;
+ }
+ pmap = (*dst->pScreen->CreatePixmap)(dst->pScreen, sw, sh, depth,
+ CREATE_PIXMAP_USAGE_SCRATCH);
+ if (!pmap)
+ {
+ nxagentShmTrap = 1;
+ FreeScratchGC(putGC);
+ return;
+ }
+ ValidateGC((DrawablePtr)pmap, putGC);
+ (*putGC->ops->PutImage)((DrawablePtr)pmap, putGC, depth, -sx, -sy, w, h, 0,
+ (format == XYPixmap) ? XYPixmap : ZPixmap, data);
+ FreeScratchGC(putGC);
+ if (format == XYBitmap)
+ (void)(*pGC->ops->CopyPlane)((DrawablePtr)pmap, dst, pGC, 0, 0, sw, sh,
+ dx, dy, 1L);
+ else
+ (void)(*pGC->ops->CopyArea)((DrawablePtr)pmap, dst, pGC, 0, 0, sw, sh,
+ dx, dy);
+ (*pmap->drawable.pScreen->DestroyPixmap)(pmap);
+ nxagentShmTrap = 1;
+}
+
+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;
+{
+ int length;
+ char *newdata;
+ extern int nxagentImageLength(int, int, int, int, int);
+
+ #ifdef TEST
+ fprintf(stderr, "fbShmPutImage: Called with drawable at [%p] GC at [%p] data at [%p].\n",
+ (void *) dst, (void *) pGC, (void *) data);
+ #endif
+
+ if ((format == ZPixmap) || (depth == 1))
+ {
+ PixmapPtr pPixmap;
+
+ pPixmap = GetScratchPixmapHeader(dst->pScreen, w, h, depth,
+ BitsPerPixel(depth), PixmapBytePad(w, depth), (void *)data);
+ if (!pPixmap)
+ return;
+ if (format == XYBitmap)
+ (void)(*pGC->ops->CopyPlane)((DrawablePtr)pPixmap, dst, pGC,
+ sx, sy, sw, sh, dx, dy, 1L);
+ else
+ (void)(*pGC->ops->CopyArea)((DrawablePtr)pPixmap, dst, pGC,
+ sx, sy, sw, sh, dx, dy);
+
+ /*
+ * We updated the internal framebuffer,
+ * now we want to go on the real X.
+ */
+
+ #ifdef TEST
+ fprintf(stderr, "fbShmPutImage: Realizing the PutImage with depth [%d] "
+ " format [%d] w [%d] h [%d] sx [%d] sy [%d] sw [%d] "
+ " sh [%d] dx [%d].\n", depth, format, w, h,
+ sx, sy, sw, sh, dx);
+ #endif
+
+ length = nxagentImageLength(sw, sh, format, 0, depth);
+
+ if ((newdata = calloc(1, length)) != NULL)
+ {
+ fbGetImage((DrawablePtr) pPixmap, sx, sy, sw, sh, format, AllPlanes, newdata);
+ (*pGC->ops->PutImage)(dst, pGC, depth, dx, dy, sw, sh, 0, format, newdata);
+
+ free(newdata);
+ }
+ else
+ {
+ #ifdef WARNING
+ fprintf(stderr, "fbShmPutImage: WARNING! Data allocation failed.\n");
+ #endif
+ }
+
+ FreeScratchPixmapHeader(pPixmap);
+ }
+ else
+ {
+ #ifdef TEST
+ fprintf(stderr, "fbShmPutImage: Calling miShmPutImage().\n");
+ #endif
+ 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;
+ }
+
+ /*
+ * There's a potential integer overflow in this check:
+ * VERIFY_SHMSIZE(shmdesc, stuff->offset, length * stuff->totalHeight,
+ * 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;
+ }
+ 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;
+ }
+
+ #ifdef TEST
+ fprintf(stderr, "ProcShmPutImage: Format [%d] srcX [%d] srcY [%d], "
+ "totalWidth [%d] totalHeight [%d]\n", stuff->format, stuff->srcX,
+ stuff->srcY, stuff->totalWidth, stuff->totalHeight);
+ #endif
+
+ #ifdef TEST
+ fprintf(stderr, "ProcShmPutImage: Calling (*shmFuncs[pDraw->pScreen->myNum]->PutImage)().\n");
+ #endif
+
+ (*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;
+
+ memset(&ev, 0, sizeof(xShmCompletionEvent));
+ 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 PixmapPtr
+fbShmCreatePixmap (pScreen, width, height, depth, addr)
+ ScreenPtr pScreen;
+ int width;
+ int height;
+ int depth;
+ char *addr;
+{
+ register PixmapPtr pPixmap;
+
+ nxagentShmPixmapTrap = 1;
+
+ pPixmap = (*pScreen->CreatePixmap)(pScreen, width, height, depth, 0);
+
+ if (!pPixmap)
+ {
+ nxagentShmPixmapTrap = 0;
+
+ return NullPixmap;
+ }
+
+ #ifdef TEST
+ fprintf(stderr,"fbShmCreatePixmap: Width [%d] Height [%d] Depth [%d] Hint[%d]\n", width, height, depth, 0);
+ #endif
+
+ if (!(*pScreen->ModifyPixmapHeader)(pPixmap, width, height, depth,
+ BitsPerPixel(depth), PixmapBytePad(width, depth), (void *)addr))
+ {
+ #ifdef WARNING
+ fprintf(stderr,"fbShmCreatePixmap: Return Null Pixmap.\n");
+ #endif
+
+ (*pScreen->DestroyPixmap)(pPixmap);
+
+ nxagentShmPixmapTrap = 0;
+
+ return NullPixmap;
+ }
+
+ nxagentShmPixmapTrap = 0;
+
+ return pPixmap;
+}
+
+
+static int
+ProcShmDispatch (client)
+ register ClientPtr client;
+{
+ REQUEST(xReq);
+
+ #ifdef TEST
+ fprintf(stderr, "ProcShmDispatch: Going to execute operation [%d] for client [%d].\n",
+ stuff -> data, client -> index);
+
+ if (stuff->data <= X_ShmCreatePixmap)
+ {
+ fprintf(stderr, "ProcShmDispatch: Request [%s] OPCODE#%d.\n",
+ nxagentShmRequestLiteral[stuff->data], stuff->data);
+ }
+ #endif
+
+ switch (stuff->data)
+ {
+ case X_ShmQueryVersion:
+ return ProcShmQueryVersion(client);
+ case X_ShmAttach:
+ return ProcShmAttach(client);
+ case X_ShmDetach:
+ return ProcShmDetach(client);
+ case X_ShmPutImage:
+ {
+ int result;
+
+ #ifdef TEST
+ fprintf(stderr, "ProcShmDispatch: Going to execute ProcShmPutImage() for client [%d].\n",
+ client -> index);
+ #endif
+
+ nxagentShmTrap = 1;
+
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ {
+ result = ProcPanoramiXShmPutImage(client);
+
+ nxagentShmTrap = 0;
+
+ return result;
+ }
+#endif
+
+ result = ProcShmPutImage(client);
+
+ nxagentShmTrap = 0;
+
+ #ifdef TEST
+ fprintf(stderr, "ProcShmDispatch: Returning from ProcShmPutImage() for client [%d].\n",
+ client -> index);
+ #endif
+
+ return result;
+ }
+ case X_ShmGetImage:
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ return ProcPanoramiXShmGetImage(client);
+#endif
+ return ProcShmGetImage(client);
+ case X_ShmCreatePixmap:
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ return ProcPanoramiXShmCreatePixmap(client);
+#endif
+ return ProcShmCreatePixmap(client);
+ default:
+ return BadRequest;
+ }
+}
+
+static int
+SProcShmDispatch (client)
+ register ClientPtr client;
+{
+ REQUEST(xReq);
+
+ #ifdef TEST
+ fprintf(stderr, "SProcShmDispatch: Going to execute operation [%d] for client [%d].\n",
+ stuff -> data, client -> index);
+ #endif
+
+ switch (stuff->data)
+ {
+ case X_ShmQueryVersion:
+ return SProcShmQueryVersion(client);
+ case X_ShmAttach:
+ return SProcShmAttach(client);
+ case X_ShmDetach:
+ return SProcShmDetach(client);
+ case X_ShmPutImage:
+ {
+ int result;
+
+ #ifdef TEST
+ fprintf(stderr, "SProcShmDispatch: Going to execute SProcShmPutImage() for client [%d].\n",
+ client -> index);
+ #endif
+
+ nxagentShmTrap = 1;
+
+ result = SProcShmPutImage(client);
+
+ nxagentShmTrap = 0;
+
+ #ifdef TEST
+ fprintf(stderr, "SProcShmDispatch: Returning from SProcShmPutImage() for client [%d].\n",
+ client -> index);
+ #endif
+
+ return result;
+ }
+ case X_ShmGetImage:
+ return SProcShmGetImage(client);
+ case X_ShmCreatePixmap:
+ return SProcShmCreatePixmap(client);
+ default:
+ return BadRequest;
+ }
+}
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