diff options
Diffstat (limited to 'xorg-server/Xext/panoramiX.c')
| -rw-r--r-- | xorg-server/Xext/panoramiX.c | 1283 |
1 files changed, 1283 insertions, 0 deletions
diff --git a/xorg-server/Xext/panoramiX.c b/xorg-server/Xext/panoramiX.c new file mode 100644 index 000000000..8bc5c42c2 --- /dev/null +++ b/xorg-server/Xext/panoramiX.c @@ -0,0 +1,1283 @@ +/***************************************************************** +Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts. +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software. + +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 +DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING, +BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation +shall not be used in advertising or otherwise to promote the sale, use or other +dealings in this Software without prior written authorization from Digital +Equipment Corporation. +******************************************************************/ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#ifdef HAVE_DMX_CONFIG_H +#include <dmx-config.h> +#endif + +#define NEED_REPLIES +#include <stdio.h> +#include <X11/X.h> +#include <X11/Xproto.h> +#include <X11/Xarch.h> +#include "misc.h" +#include "cursor.h" +#include "cursorstr.h" +#include "extnsionst.h" +#include "dixstruct.h" +#include "gc.h" +#include "gcstruct.h" +#include "scrnintstr.h" +#include "window.h" +#include "windowstr.h" +#include "pixmapstr.h" +#include "panoramiX.h" +#include <X11/extensions/panoramiXproto.h> +#include "panoramiXsrv.h" +#include "globals.h" +#include "servermd.h" +#include "resource.h" +#ifdef RENDER +#include "picturestr.h" +#endif +#include "modinit.h" + + +#ifdef GLXPROXY +extern VisualPtr glxMatchVisual(ScreenPtr pScreen, + VisualPtr pVisual, + ScreenPtr pMatchScreen); +#endif + +/* + * PanoramiX data declarations + */ + +int PanoramiXPixWidth = 0; +int PanoramiXPixHeight = 0; +_X_EXPORT int PanoramiXNumScreens = 0; + +_X_EXPORT PanoramiXData *panoramiXdataPtr = NULL; +static RegionRec PanoramiXScreenRegion = {{0, 0, 0, 0}, NULL}; + +static int PanoramiXNumDepths; +static DepthPtr PanoramiXDepths; +static int PanoramiXNumVisuals; +static VisualPtr PanoramiXVisuals; + +_X_EXPORT unsigned long XRC_DRAWABLE; +_X_EXPORT unsigned long XRT_WINDOW; +_X_EXPORT unsigned long XRT_PIXMAP; +_X_EXPORT unsigned long XRT_GC; +_X_EXPORT unsigned long XRT_COLORMAP; + +static Bool VisualsEqual(VisualPtr, ScreenPtr, VisualPtr); +_X_EXPORT XineramaVisualsEqualProcPtr XineramaVisualsEqualPtr = &VisualsEqual; + +/* + * Function prototypes + */ + +static int panoramiXGeneration; +static int ProcPanoramiXDispatch(ClientPtr client); + +static void PanoramiXResetProc(ExtensionEntry*); + +/* + * External references for functions and data variables + */ + +#include "panoramiXh.h" + +int (* SavedProcVector[256]) (ClientPtr client) = { NULL, }; + +static DevPrivateKey PanoramiXGCKey = &PanoramiXGCKey; +static DevPrivateKey PanoramiXScreenKey = &PanoramiXScreenKey; + +typedef struct { + DDXPointRec clipOrg; + DDXPointRec patOrg; + GCFuncs *wrapFuncs; +} PanoramiXGCRec, *PanoramiXGCPtr; + +typedef struct { + CreateGCProcPtr CreateGC; + CloseScreenProcPtr CloseScreen; +} PanoramiXScreenRec, *PanoramiXScreenPtr; + +RegionRec XineramaScreenRegions[MAXSCREENS]; + +static void XineramaValidateGC(GCPtr, unsigned long, DrawablePtr); +static void XineramaChangeGC(GCPtr, unsigned long); +static void XineramaCopyGC(GCPtr, unsigned long, GCPtr); +static void XineramaDestroyGC(GCPtr); +static void XineramaChangeClip(GCPtr, int, pointer, int); +static void XineramaDestroyClip(GCPtr); +static void XineramaCopyClip(GCPtr, GCPtr); + +static GCFuncs XineramaGCFuncs = { + XineramaValidateGC, XineramaChangeGC, XineramaCopyGC, XineramaDestroyGC, + XineramaChangeClip, XineramaDestroyClip, XineramaCopyClip +}; + +#define Xinerama_GC_FUNC_PROLOGUE(pGC)\ + PanoramiXGCPtr pGCPriv = (PanoramiXGCPtr) \ + dixLookupPrivate(&(pGC)->devPrivates, PanoramiXGCKey); \ + (pGC)->funcs = pGCPriv->wrapFuncs; + +#define Xinerama_GC_FUNC_EPILOGUE(pGC)\ + pGCPriv->wrapFuncs = (pGC)->funcs;\ + (pGC)->funcs = &XineramaGCFuncs; + + +static Bool +XineramaCloseScreen (int i, ScreenPtr pScreen) +{ + PanoramiXScreenPtr pScreenPriv = (PanoramiXScreenPtr) + dixLookupPrivate(&pScreen->devPrivates, PanoramiXScreenKey); + + pScreen->CloseScreen = pScreenPriv->CloseScreen; + pScreen->CreateGC = pScreenPriv->CreateGC; + + REGION_UNINIT(pScreen, &XineramaScreenRegions[pScreen->myNum]); + if (pScreen->myNum == 0) + REGION_UNINIT(pScreen, &PanoramiXScreenRegion); + + xfree ((pointer) pScreenPriv); + + return (*pScreen->CloseScreen) (i, pScreen); +} + +static Bool +XineramaCreateGC(GCPtr pGC) +{ + ScreenPtr pScreen = pGC->pScreen; + PanoramiXScreenPtr pScreenPriv = (PanoramiXScreenPtr) + dixLookupPrivate(&pScreen->devPrivates, PanoramiXScreenKey); + Bool ret; + + pScreen->CreateGC = pScreenPriv->CreateGC; + if((ret = (*pScreen->CreateGC)(pGC))) { + PanoramiXGCPtr pGCPriv = (PanoramiXGCPtr) + dixLookupPrivate(&pGC->devPrivates, PanoramiXGCKey); + + pGCPriv->wrapFuncs = pGC->funcs; + pGC->funcs = &XineramaGCFuncs; + + pGCPriv->clipOrg.x = pGC->clipOrg.x; + pGCPriv->clipOrg.y = pGC->clipOrg.y; + pGCPriv->patOrg.x = pGC->patOrg.x; + pGCPriv->patOrg.y = pGC->patOrg.y; + } + pScreen->CreateGC = XineramaCreateGC; + + return ret; +} + +static void +XineramaValidateGC( + GCPtr pGC, + unsigned long changes, + DrawablePtr pDraw +){ + Xinerama_GC_FUNC_PROLOGUE (pGC); + + if((pDraw->type == DRAWABLE_WINDOW) && !(((WindowPtr)pDraw)->parent)) { + /* the root window */ + int x_off = panoramiXdataPtr[pGC->pScreen->myNum].x; + int y_off = panoramiXdataPtr[pGC->pScreen->myNum].y; + int new_val; + + new_val = pGCPriv->clipOrg.x - x_off; + if(pGC->clipOrg.x != new_val) { + pGC->clipOrg.x = new_val; + changes |= GCClipXOrigin; + } + new_val = pGCPriv->clipOrg.y - y_off; + if(pGC->clipOrg.y != new_val) { + pGC->clipOrg.y = new_val; + changes |= GCClipYOrigin; + } + new_val = pGCPriv->patOrg.x - x_off; + if(pGC->patOrg.x != new_val) { + pGC->patOrg.x = new_val; + changes |= GCTileStipXOrigin; + } + new_val = pGCPriv->patOrg.y - y_off; + if(pGC->patOrg.y != new_val) { + pGC->patOrg.y = new_val; + changes |= GCTileStipYOrigin; + } + } else { + if(pGC->clipOrg.x != pGCPriv->clipOrg.x) { + pGC->clipOrg.x = pGCPriv->clipOrg.x; + changes |= GCClipXOrigin; + } + if(pGC->clipOrg.y != pGCPriv->clipOrg.y) { + pGC->clipOrg.y = pGCPriv->clipOrg.y; + changes |= GCClipYOrigin; + } + if(pGC->patOrg.x != pGCPriv->patOrg.x) { + pGC->patOrg.x = pGCPriv->patOrg.x; + changes |= GCTileStipXOrigin; + } + if(pGC->patOrg.y != pGCPriv->patOrg.y) { + pGC->patOrg.y = pGCPriv->patOrg.y; + changes |= GCTileStipYOrigin; + } + } + + (*pGC->funcs->ValidateGC)(pGC, changes, pDraw); + Xinerama_GC_FUNC_EPILOGUE (pGC); +} + +static void +XineramaDestroyGC(GCPtr pGC) +{ + Xinerama_GC_FUNC_PROLOGUE (pGC); + (*pGC->funcs->DestroyGC)(pGC); + Xinerama_GC_FUNC_EPILOGUE (pGC); +} + +static void +XineramaChangeGC ( + GCPtr pGC, + unsigned long mask +){ + Xinerama_GC_FUNC_PROLOGUE (pGC); + + if(mask & GCTileStipXOrigin) + pGCPriv->patOrg.x = pGC->patOrg.x; + if(mask & GCTileStipYOrigin) + pGCPriv->patOrg.y = pGC->patOrg.y; + if(mask & GCClipXOrigin) + pGCPriv->clipOrg.x = pGC->clipOrg.x; + if(mask & GCClipYOrigin) + pGCPriv->clipOrg.y = pGC->clipOrg.y; + + (*pGC->funcs->ChangeGC) (pGC, mask); + Xinerama_GC_FUNC_EPILOGUE (pGC); +} + +static void +XineramaCopyGC ( + GCPtr pGCSrc, + unsigned long mask, + GCPtr pGCDst +){ + PanoramiXGCPtr pSrcPriv = (PanoramiXGCPtr) + dixLookupPrivate(&pGCSrc->devPrivates, PanoramiXGCKey); + Xinerama_GC_FUNC_PROLOGUE (pGCDst); + + if(mask & GCTileStipXOrigin) + pGCPriv->patOrg.x = pSrcPriv->patOrg.x; + if(mask & GCTileStipYOrigin) + pGCPriv->patOrg.y = pSrcPriv->patOrg.y; + if(mask & GCClipXOrigin) + pGCPriv->clipOrg.x = pSrcPriv->clipOrg.x; + if(mask & GCClipYOrigin) + pGCPriv->clipOrg.y = pSrcPriv->clipOrg.y; + + (*pGCDst->funcs->CopyGC) (pGCSrc, mask, pGCDst); + Xinerama_GC_FUNC_EPILOGUE (pGCDst); +} + +static void +XineramaChangeClip ( + GCPtr pGC, + int type, + pointer pvalue, + int nrects +){ + Xinerama_GC_FUNC_PROLOGUE (pGC); + (*pGC->funcs->ChangeClip) (pGC, type, pvalue, nrects); + Xinerama_GC_FUNC_EPILOGUE (pGC); +} + +static void +XineramaCopyClip(GCPtr pgcDst, GCPtr pgcSrc) +{ + Xinerama_GC_FUNC_PROLOGUE (pgcDst); + (* pgcDst->funcs->CopyClip)(pgcDst, pgcSrc); + Xinerama_GC_FUNC_EPILOGUE (pgcDst); +} + +static void +XineramaDestroyClip(GCPtr pGC) +{ + Xinerama_GC_FUNC_PROLOGUE (pGC); + (* pGC->funcs->DestroyClip)(pGC); + Xinerama_GC_FUNC_EPILOGUE (pGC); +} + +_X_EXPORT int +XineramaDeleteResource(pointer data, XID id) +{ + xfree(data); + return 1; +} + +typedef struct { + int screen; + int id; +} PanoramiXSearchData; + +static Bool +XineramaFindIDByScrnum(pointer resource, XID id, pointer privdata) +{ + PanoramiXRes *res = (PanoramiXRes*)resource; + PanoramiXSearchData *data = (PanoramiXSearchData*)privdata; + + return (res->info[data->screen].id == data->id); +} + +PanoramiXRes * +PanoramiXFindIDByScrnum(RESTYPE type, XID id, int screen) +{ + PanoramiXSearchData data; + + if(!screen) + return LookupIDByType(id, type); + + data.screen = screen; + data.id = id; + + return LookupClientResourceComplex(clients[CLIENT_ID(id)], type, + XineramaFindIDByScrnum, &data); +} + +typedef struct _connect_callback_list { + void (*func)(void); + struct _connect_callback_list *next; +} XineramaConnectionCallbackList; + +static XineramaConnectionCallbackList *ConnectionCallbackList = NULL; + +_X_EXPORT Bool +XineramaRegisterConnectionBlockCallback(void (*func)(void)) +{ + XineramaConnectionCallbackList *newlist; + + if(!(newlist = xalloc(sizeof(XineramaConnectionCallbackList)))) + return FALSE; + + newlist->next = ConnectionCallbackList; + newlist->func = func; + ConnectionCallbackList = newlist; + + return TRUE; +} + +static void XineramaInitData(ScreenPtr pScreen) +{ + int i, w, h; + + REGION_NULL(pScreen, &PanoramiXScreenRegion) + for (i = 0; i < PanoramiXNumScreens; i++) { + BoxRec TheBox; + + pScreen = screenInfo.screens[i]; + + panoramiXdataPtr[i].x = dixScreenOrigins[i].x; + panoramiXdataPtr[i].y = dixScreenOrigins[i].y; + panoramiXdataPtr[i].width = pScreen->width; + panoramiXdataPtr[i].height = pScreen->height; + + TheBox.x1 = panoramiXdataPtr[i].x; + TheBox.x2 = TheBox.x1 + panoramiXdataPtr[i].width; + TheBox.y1 = panoramiXdataPtr[i].y; + TheBox.y2 = TheBox.y1 + panoramiXdataPtr[i].height; + + REGION_INIT(pScreen, &XineramaScreenRegions[i], &TheBox, 1); + REGION_UNION(pScreen, &PanoramiXScreenRegion, &PanoramiXScreenRegion, + &XineramaScreenRegions[i]); + } + + PanoramiXPixWidth = panoramiXdataPtr[0].x + panoramiXdataPtr[0].width; + PanoramiXPixHeight = panoramiXdataPtr[0].y + panoramiXdataPtr[0].height; + + for (i = 1; i < PanoramiXNumScreens; i++) { + w = panoramiXdataPtr[i].x + panoramiXdataPtr[i].width; + h = panoramiXdataPtr[i].y + panoramiXdataPtr[i].height; + + if (PanoramiXPixWidth < w) + PanoramiXPixWidth = w; + if (PanoramiXPixHeight < h) + PanoramiXPixHeight = h; + } +} + +void XineramaReinitData(ScreenPtr pScreen) +{ + int i; + + REGION_UNINIT(pScreen, &PanoramiXScreenRegion); + for (i = 0; i < PanoramiXNumScreens; i++) + REGION_UNINIT(pScreen, &XineramaScreenRegions[i]); + + XineramaInitData(pScreen); +} + +/* + * PanoramiXExtensionInit(): + * Called from InitExtensions in main(). + * Register PanoramiXeen Extension + * Initialize global variables. + */ + +void PanoramiXExtensionInit(int argc, char *argv[]) +{ + int i; + Bool success = FALSE; + ExtensionEntry *extEntry; + ScreenPtr pScreen = screenInfo.screens[0]; + PanoramiXScreenPtr pScreenPriv; + + if (noPanoramiXExtension) + return; + + PanoramiXNumScreens = screenInfo.numScreens; + if (PanoramiXNumScreens == 1) { /* Only 1 screen */ + noPanoramiXExtension = TRUE; + return; + } + + while (panoramiXGeneration != serverGeneration) { + extEntry = AddExtension(PANORAMIX_PROTOCOL_NAME, 0,0, + ProcPanoramiXDispatch, + SProcPanoramiXDispatch, PanoramiXResetProc, + StandardMinorOpcode); + if (!extEntry) + break; + + /* + * First make sure all the basic allocations succeed. If not, + * run in non-PanoramiXeen mode. + */ + + panoramiXdataPtr = (PanoramiXData *) + xcalloc(PanoramiXNumScreens, sizeof(PanoramiXData)); + + BREAK_IF(!panoramiXdataPtr); + + if (!dixRequestPrivate(PanoramiXGCKey, sizeof(PanoramiXGCRec))) { + noPanoramiXExtension = TRUE; + return; + } + + for (i = 0; i < PanoramiXNumScreens; i++) { + pScreen = screenInfo.screens[i]; + pScreenPriv = xalloc(sizeof(PanoramiXScreenRec)); + dixSetPrivate(&pScreen->devPrivates, PanoramiXScreenKey, + pScreenPriv); + if(!pScreenPriv) { + noPanoramiXExtension = TRUE; + return; + } + + pScreenPriv->CreateGC = pScreen->CreateGC; + pScreenPriv->CloseScreen = pScreen->CloseScreen; + + pScreen->CreateGC = XineramaCreateGC; + pScreen->CloseScreen = XineramaCloseScreen; + } + + XRC_DRAWABLE = CreateNewResourceClass(); + XRT_WINDOW = CreateNewResourceType(XineramaDeleteResource) | + XRC_DRAWABLE; + XRT_PIXMAP = CreateNewResourceType(XineramaDeleteResource) | + XRC_DRAWABLE; + XRT_GC = CreateNewResourceType(XineramaDeleteResource); + XRT_COLORMAP = CreateNewResourceType(XineramaDeleteResource); + + panoramiXGeneration = serverGeneration; + success = TRUE; + } + + if (!success) { + noPanoramiXExtension = TRUE; + ErrorF(PANORAMIX_PROTOCOL_NAME " extension failed to initialize\n"); + return; + } + + XineramaInitData(pScreen); + + /* + * Put our processes into the ProcVector + */ + + for (i = 256; i--; ) + SavedProcVector[i] = ProcVector[i]; + + ProcVector[X_CreateWindow] = PanoramiXCreateWindow; + ProcVector[X_ChangeWindowAttributes] = PanoramiXChangeWindowAttributes; + ProcVector[X_DestroyWindow] = PanoramiXDestroyWindow; + ProcVector[X_DestroySubwindows] = PanoramiXDestroySubwindows; + ProcVector[X_ChangeSaveSet] = PanoramiXChangeSaveSet; + ProcVector[X_ReparentWindow] = PanoramiXReparentWindow; + ProcVector[X_MapWindow] = PanoramiXMapWindow; + ProcVector[X_MapSubwindows] = PanoramiXMapSubwindows; + ProcVector[X_UnmapWindow] = PanoramiXUnmapWindow; + ProcVector[X_UnmapSubwindows] = PanoramiXUnmapSubwindows; + ProcVector[X_ConfigureWindow] = PanoramiXConfigureWindow; + ProcVector[X_CirculateWindow] = PanoramiXCirculateWindow; + ProcVector[X_GetGeometry] = PanoramiXGetGeometry; + ProcVector[X_TranslateCoords] = PanoramiXTranslateCoords; + ProcVector[X_CreatePixmap] = PanoramiXCreatePixmap; + ProcVector[X_FreePixmap] = PanoramiXFreePixmap; + ProcVector[X_CreateGC] = PanoramiXCreateGC; + ProcVector[X_ChangeGC] = PanoramiXChangeGC; + ProcVector[X_CopyGC] = PanoramiXCopyGC; + ProcVector[X_SetDashes] = PanoramiXSetDashes; + ProcVector[X_SetClipRectangles] = PanoramiXSetClipRectangles; + ProcVector[X_FreeGC] = PanoramiXFreeGC; + ProcVector[X_ClearArea] = PanoramiXClearToBackground; + ProcVector[X_CopyArea] = PanoramiXCopyArea;; + ProcVector[X_CopyPlane] = PanoramiXCopyPlane;; + ProcVector[X_PolyPoint] = PanoramiXPolyPoint; + ProcVector[X_PolyLine] = PanoramiXPolyLine; + ProcVector[X_PolySegment] = PanoramiXPolySegment; + ProcVector[X_PolyRectangle] = PanoramiXPolyRectangle; + ProcVector[X_PolyArc] = PanoramiXPolyArc; + ProcVector[X_FillPoly] = PanoramiXFillPoly; + ProcVector[X_PolyFillRectangle] = PanoramiXPolyFillRectangle; + ProcVector[X_PolyFillArc] = PanoramiXPolyFillArc; + ProcVector[X_PutImage] = PanoramiXPutImage; + ProcVector[X_GetImage] = PanoramiXGetImage; + ProcVector[X_PolyText8] = PanoramiXPolyText8; + ProcVector[X_PolyText16] = PanoramiXPolyText16; + ProcVector[X_ImageText8] = PanoramiXImageText8; + ProcVector[X_ImageText16] = PanoramiXImageText16; + ProcVector[X_CreateColormap] = PanoramiXCreateColormap; + ProcVector[X_FreeColormap] = PanoramiXFreeColormap; + ProcVector[X_CopyColormapAndFree] = PanoramiXCopyColormapAndFree; + ProcVector[X_InstallColormap] = PanoramiXInstallColormap; + ProcVector[X_UninstallColormap] = PanoramiXUninstallColormap; + ProcVector[X_AllocColor] = PanoramiXAllocColor; + ProcVector[X_AllocNamedColor] = PanoramiXAllocNamedColor; + ProcVector[X_AllocColorCells] = PanoramiXAllocColorCells; + ProcVector[X_AllocColorPlanes] = PanoramiXAllocColorPlanes; + ProcVector[X_FreeColors] = PanoramiXFreeColors; + ProcVector[X_StoreColors] = PanoramiXStoreColors; + ProcVector[X_StoreNamedColor] = PanoramiXStoreNamedColor; + +#ifdef RENDER + PanoramiXRenderInit (); +#endif +} + +extern Bool CreateConnectionBlock(void); + +Bool PanoramiXCreateConnectionBlock(void) +{ + int i, j, length; + Bool disableBackingStore = FALSE; + Bool disableSaveUnders = FALSE; + int old_width, old_height; + float width_mult, height_mult; + xWindowRoot *root; + xVisualType *visual; + xDepth *depth; + VisualPtr pVisual; + ScreenPtr pScreen; + + /* + * Do normal CreateConnectionBlock but faking it for only one screen + */ + + if(!PanoramiXNumDepths) { + ErrorF("Xinerama error: No common visuals\n"); + return FALSE; + } + + for(i = 1; i < screenInfo.numScreens; i++) { + pScreen = screenInfo.screens[i]; + if(pScreen->rootDepth != screenInfo.screens[0]->rootDepth) { + ErrorF("Xinerama error: Root window depths differ\n"); + return FALSE; + } + if(pScreen->backingStoreSupport != screenInfo.screens[0]->backingStoreSupport) + disableBackingStore = TRUE; + if(pScreen->saveUnderSupport != screenInfo.screens[0]->saveUnderSupport) + disableSaveUnders = TRUE; + } + + if(disableBackingStore || disableSaveUnders) { + for(i = 0; i < screenInfo.numScreens; i++) { + pScreen = screenInfo.screens[i]; + if(disableBackingStore) + pScreen->backingStoreSupport = NotUseful; + if(disableSaveUnders) + pScreen->saveUnderSupport = NotUseful; + } + } + + i = screenInfo.numScreens; + screenInfo.numScreens = 1; + if (!CreateConnectionBlock()) { + screenInfo.numScreens = i; + return FALSE; + } + + screenInfo.numScreens = i; + + root = (xWindowRoot *) (ConnectionInfo + connBlockScreenStart); + length = connBlockScreenStart + sizeof(xWindowRoot); + + /* overwrite the connection block */ + root->nDepths = PanoramiXNumDepths; + + for (i = 0; i < PanoramiXNumDepths; i++) { + depth = (xDepth *) (ConnectionInfo + length); + depth->depth = PanoramiXDepths[i].depth; + depth->nVisuals = PanoramiXDepths[i].numVids; + length += sizeof(xDepth); + visual = (xVisualType *)(ConnectionInfo + length); + + for (j = 0; j < depth->nVisuals; j++, visual++) { + visual->visualID = PanoramiXDepths[i].vids[j]; + + for (pVisual = PanoramiXVisuals; + pVisual->vid != visual->visualID; + pVisual++) + ; + + visual->class = pVisual->class; + visual->bitsPerRGB = pVisual->bitsPerRGBValue; + visual->colormapEntries = pVisual->ColormapEntries; + visual->redMask = pVisual->redMask; + visual->greenMask = pVisual->greenMask; + visual->blueMask = pVisual->blueMask; + } + + length += (depth->nVisuals * sizeof(xVisualType)); + } + + connSetupPrefix.length = length >> 2; + + for (i = 0; i < PanoramiXNumDepths; i++) + xfree(PanoramiXDepths[i].vids); + xfree(PanoramiXDepths); + PanoramiXDepths = NULL; + + /* + * OK, change some dimensions so it looks as if it were one big screen + */ + + old_width = root->pixWidth; + old_height = root->pixHeight; + + root->pixWidth = PanoramiXPixWidth; + root->pixHeight = PanoramiXPixHeight; + width_mult = (1.0 * root->pixWidth) / old_width; + height_mult = (1.0 * root->pixHeight) / old_height; + root->mmWidth *= width_mult; + root->mmHeight *= height_mult; + + while(ConnectionCallbackList) { + pointer tmp; + + tmp = (pointer)ConnectionCallbackList; + (*ConnectionCallbackList->func)(); + ConnectionCallbackList = ConnectionCallbackList->next; + xfree(tmp); + } + + return TRUE; +} + +/* + * This isn't just memcmp(), bitsPerRGBValue is skipped. markv made that + * change way back before xf86 4.0, but the comment for _why_ is a bit + * opaque, so I'm not going to question it for now. + * + * This is probably better done as a screen hook so DBE/EVI/GLX can add + * their own tests, and adding privates to VisualRec so they don't have to + * do their own back-mapping. + */ +static Bool +VisualsEqual(VisualPtr a, ScreenPtr pScreenB, VisualPtr b) +{ + return ((a->class == b->class) && + (a->ColormapEntries == b->ColormapEntries) && + (a->nplanes == b->nplanes) && + (a->redMask == b->redMask) && + (a->greenMask == b->greenMask) && + (a->blueMask == b->blueMask) && + (a->offsetRed == b->offsetRed) && + (a->offsetGreen == b->offsetGreen) && + (a->offsetBlue == b->offsetBlue)); +} + +static void +PanoramiXMaybeAddDepth(DepthPtr pDepth) +{ + ScreenPtr pScreen; + int j, k; + Bool found = FALSE; + + for (j = 1; j < PanoramiXNumScreens; j++) { + pScreen = screenInfo.screens[j]; + for (k = 0; k < pScreen->numDepths; k++) { + if (pScreen->allowedDepths[k].depth == pDepth->depth) { + found = TRUE; + break; + } + } + } + + if (!found) + return; + + j = PanoramiXNumDepths; + PanoramiXNumDepths++; + PanoramiXDepths = xrealloc(PanoramiXDepths, + PanoramiXNumDepths * sizeof(DepthRec)); + PanoramiXDepths[j].depth = pDepth->depth; + PanoramiXDepths[j].numVids = 0; + /* XXX suboptimal, should grow these dynamically */ + if(pDepth->numVids) + PanoramiXDepths[j].vids = xalloc(sizeof(VisualID) * pDepth->numVids); + else + PanoramiXDepths[j].vids = NULL; +} + +static void +PanoramiXMaybeAddVisual(VisualPtr pVisual) +{ + ScreenPtr pScreen; + int j, k; + Bool found = FALSE; + + for (j = 1; j < PanoramiXNumScreens; j++) { + pScreen = screenInfo.screens[j]; + found = FALSE; + + for (k = 0; k < pScreen->numVisuals; k++) { + VisualPtr candidate = &pScreen->visuals[k]; + + if ((*XineramaVisualsEqualPtr)(pVisual, pScreen, candidate) +#ifdef GLXPROXY + && glxMatchVisual(screenInfo.screens[0], pVisual, pScreen) +#endif + ) { + found = TRUE; + break; + } + } + + if (!found) + return; + } + + /* found a matching visual on all screens, add it to the subset list */ + j = PanoramiXNumVisuals; + PanoramiXNumVisuals++; + PanoramiXVisuals = xrealloc(PanoramiXVisuals, + PanoramiXNumVisuals * sizeof(VisualRec)); + + memcpy(&PanoramiXVisuals[j], pVisual, sizeof(VisualRec)); + + for (k = 0; k < PanoramiXNumDepths; k++) { + if (PanoramiXDepths[k].depth == pVisual->nplanes) { + PanoramiXDepths[k].vids[PanoramiXDepths[k].numVids] = pVisual->vid; + PanoramiXDepths[k].numVids++; + break; + } + } +} + +extern void +PanoramiXConsolidate(void) +{ + int i; + PanoramiXRes *root, *defmap, *saver; + ScreenPtr pScreen = screenInfo.screens[0]; + DepthPtr pDepth = pScreen->allowedDepths; + VisualPtr pVisual = pScreen->visuals; + + PanoramiXNumDepths = 0; + PanoramiXNumVisuals = 0; + + for (i = 0; i < pScreen->numDepths; i++) + PanoramiXMaybeAddDepth(pDepth++); + + for (i = 0; i < pScreen->numVisuals; i++) + PanoramiXMaybeAddVisual(pVisual++); + + root = xalloc(sizeof(PanoramiXRes)); + root->type = XRT_WINDOW; + defmap = xalloc(sizeof(PanoramiXRes)); + defmap->type = XRT_COLORMAP; + saver = xalloc(sizeof(PanoramiXRes)); + saver->type = XRT_WINDOW; + + for (i = 0; i < PanoramiXNumScreens; i++) { + root->info[i].id = WindowTable[i]->drawable.id; + root->u.win.class = InputOutput; + root->u.win.root = TRUE; + saver->info[i].id = savedScreenInfo[i].wid; + saver->u.win.class = InputOutput; + saver->u.win.root = TRUE; + defmap->info[i].id = (screenInfo.screens[i])->defColormap; + } + + AddResource(root->info[0].id, XRT_WINDOW, root); + AddResource(saver->info[0].id, XRT_WINDOW, saver); + AddResource(defmap->info[0].id, XRT_COLORMAP, defmap); +} + +_X_EXPORT VisualID +PanoramiXTranslateVisualID(int screen, VisualID orig) +{ + ScreenPtr pOtherScreen = screenInfo.screens[screen]; + VisualPtr pVisual = NULL; + int i; + + for (i = 0; i < PanoramiXNumVisuals; i++) { + if (orig == PanoramiXVisuals[i].vid) { + pVisual = &PanoramiXVisuals[i]; + break; + } + } + + if (!pVisual) + return 0; + + /* if screen is 0, orig is already the correct visual ID */ + if (screen == 0) + return orig; + + /* found the original, now translate it relative to the backend screen */ + for (i = 0; i < pOtherScreen->numVisuals; i++) { + VisualPtr pOtherVisual = &pOtherScreen->visuals[i]; + + if ((*XineramaVisualsEqualPtr)(pVisual, pOtherScreen, pOtherVisual)) + return pOtherVisual->vid; + } + + return 0; +} + + +/* + * PanoramiXResetProc() + * Exit, deallocating as needed. + */ + +static void PanoramiXResetProc(ExtensionEntry* extEntry) +{ + int i; + +#ifdef RENDER + PanoramiXRenderReset (); +#endif + screenInfo.numScreens = PanoramiXNumScreens; + for (i = 256; i--; ) + ProcVector[i] = SavedProcVector[i]; + + Xfree(panoramiXdataPtr); +} + + +int +ProcPanoramiXQueryVersion (ClientPtr client) +{ + /* REQUEST(xPanoramiXQueryVersionReq); */ + xPanoramiXQueryVersionReply rep; + register int n; + + REQUEST_SIZE_MATCH (xPanoramiXQueryVersionReq); + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + rep.majorVersion = PANORAMIX_MAJOR_VERSION; + rep.minorVersion = PANORAMIX_MINOR_VERSION; + if (client->swapped) { + swaps(&rep.sequenceNumber, n); + swapl(&rep.length, n); + swaps(&rep.majorVersion, n); + swaps(&rep.minorVersion, n); + } + WriteToClient(client, sizeof (xPanoramiXQueryVersionReply), (char *)&rep); + return (client->noClientException); +} + +int +ProcPanoramiXGetState(ClientPtr client) +{ + REQUEST(xPanoramiXGetStateReq); + WindowPtr pWin; + xPanoramiXGetStateReply rep; + register int n, rc; + + REQUEST_SIZE_MATCH(xPanoramiXGetStateReq); + rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess); + if (rc != Success) + return rc; + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + rep.state = !noPanoramiXExtension; + rep.window = stuff->window; + if (client->swapped) { + swaps (&rep.sequenceNumber, n); + swapl (&rep.length, n); + swapl (&rep.window, n); + } + WriteToClient (client, sizeof (xPanoramiXGetStateReply), (char *) &rep); + return client->noClientException; + +} + +int +ProcPanoramiXGetScreenCount(ClientPtr client) +{ + REQUEST(xPanoramiXGetScreenCountReq); + WindowPtr pWin; + xPanoramiXGetScreenCountReply rep; + register int n, rc; + + REQUEST_SIZE_MATCH(xPanoramiXGetScreenCountReq); + rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess); + if (rc != Success) + return rc; + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + rep.ScreenCount = PanoramiXNumScreens; + rep.window = stuff->window; + if (client->swapped) { + swaps (&rep.sequenceNumber, n); + swapl (&rep.length, n); + swapl (&rep.window, n); + } + WriteToClient (client, sizeof (xPanoramiXGetScreenCountReply), (char *) &rep); + return client->noClientException; +} + +int +ProcPanoramiXGetScreenSize(ClientPtr client) +{ + REQUEST(xPanoramiXGetScreenSizeReq); + WindowPtr pWin; + xPanoramiXGetScreenSizeReply rep; + register int n, rc; + + if (stuff->screen >= PanoramiXNumScreens) + return BadMatch; + + REQUEST_SIZE_MATCH(xPanoramiXGetScreenSizeReq); + rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess); + if (rc != Success) + return rc; + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + /* screen dimensions */ + rep.width = panoramiXdataPtr[stuff->screen].width; + rep.height = panoramiXdataPtr[stuff->screen].height; + rep.window = stuff->window; + rep.screen = stuff->screen; + if (client->swapped) { + swaps (&rep.sequenceNumber, n); + swapl (&rep.length, n); + swapl (&rep.width, n); + swapl (&rep.height, n); + swapl (&rep.window, n); + swapl (&rep.screen, n); + } + WriteToClient (client, sizeof (xPanoramiXGetScreenSizeReply), (char *) &rep); + return client->noClientException; +} + + +int +ProcXineramaIsActive(ClientPtr client) +{ + /* REQUEST(xXineramaIsActiveReq); */ + xXineramaIsActiveReply rep; + + REQUEST_SIZE_MATCH(xXineramaIsActiveReq); + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; +#if 1 + { + /* The following hack fools clients into thinking that Xinerama + * is disabled even though it is not. */ + rep.state = !noPanoramiXExtension && !PanoramiXExtensionDisabledHack; + } +#else + rep.state = !noPanoramiXExtension; +#endif + if (client->swapped) { + register int n; + swaps (&rep.sequenceNumber, n); + swapl (&rep.length, n); + swapl (&rep.state, n); + } + WriteToClient (client, sizeof (xXineramaIsActiveReply), (char *) &rep); + return client->noClientException; +} + + +int +ProcXineramaQueryScreens(ClientPtr client) +{ + /* REQUEST(xXineramaQueryScreensReq); */ + xXineramaQueryScreensReply rep; + + REQUEST_SIZE_MATCH(xXineramaQueryScreensReq); + + rep.type = X_Reply; + rep.sequenceNumber = client->sequence; + rep.number = (noPanoramiXExtension) ? 0 : PanoramiXNumScreens; + rep.length = rep.number * sz_XineramaScreenInfo >> 2; + if (client->swapped) { + register int n; + swaps (&rep.sequenceNumber, n); + swapl (&rep.length, n); + swapl (&rep.number, n); + } + WriteToClient (client, sizeof (xXineramaQueryScreensReply), (char *) &rep); + + if(!noPanoramiXExtension) { + xXineramaScreenInfo scratch; + int i; + + for(i = 0; i < PanoramiXNumScreens; i++) { + scratch.x_org = panoramiXdataPtr[i].x; + scratch.y_org = panoramiXdataPtr[i].y; + scratch.width = panoramiXdataPtr[i].width; + scratch.height = panoramiXdataPtr[i].height; + + if(client->swapped) { + register int n; + swaps (&scratch.x_org, n); + swaps (&scratch.y_org, n); + swaps (&scratch.width, n); + swaps (&scratch.height, n); + } + WriteToClient (client, sz_XineramaScreenInfo, (char *) &scratch); + } + } + + return client->noClientException; +} + + +static int +ProcPanoramiXDispatch (ClientPtr client) +{ REQUEST(xReq); + switch (stuff->data) + { + case X_PanoramiXQueryVersion: + return ProcPanoramiXQueryVersion(client); + case X_PanoramiXGetState: + return ProcPanoramiXGetState(client); + case X_PanoramiXGetScreenCount: + return ProcPanoramiXGetScreenCount(client); + case X_PanoramiXGetScreenSize: + return ProcPanoramiXGetScreenSize(client); + case X_XineramaIsActive: + return ProcXineramaIsActive(client); + case X_XineramaQueryScreens: + return ProcXineramaQueryScreens(client); + } + return BadRequest; +} + + +#if X_BYTE_ORDER == X_LITTLE_ENDIAN +#define SHIFT_L(v,s) (v) << (s) +#define SHIFT_R(v,s) (v) >> (s) +#else +#define SHIFT_L(v,s) (v) >> (s) +#define SHIFT_R(v,s) (v) << (s) +#endif + +static void +CopyBits(char *dst, int shiftL, char *src, int bytes) +{ + /* Just get it to work. Worry about speed later */ + int shiftR = 8 - shiftL; + + while(bytes--) { + *dst |= SHIFT_L(*src, shiftL); + *(dst + 1) |= SHIFT_R(*src, shiftR); + dst++; src++; + } +} + + +/* Caution. This doesn't support 2 and 4 bpp formats. We expect + 1 bpp and planar data to be already cleared when presented + to this function */ + +void +XineramaGetImageData( + DrawablePtr *pDrawables, + int left, + int top, + int width, + int height, + unsigned int format, + unsigned long planemask, + char *data, + int pitch, + Bool isRoot +){ + RegionRec SrcRegion, GrabRegion; + BoxRec SrcBox, *pbox; + int x, y, w, h, i, j, nbox, size, sizeNeeded, ScratchPitch, inOut, depth; + DrawablePtr pDraw = pDrawables[0]; + char *ScratchMem = NULL; + + size = 0; + + /* find box in logical screen space */ + SrcBox.x1 = left; + SrcBox.y1 = top; + if(!isRoot) { + SrcBox.x1 += pDraw->x + panoramiXdataPtr[0].x; + SrcBox.y1 += pDraw->y + panoramiXdataPtr[0].y; + } + SrcBox.x2 = SrcBox.x1 + width; + SrcBox.y2 = SrcBox.y1 + height; + + REGION_INIT(pScreen, &SrcRegion, &SrcBox, 1); + REGION_NULL(pScreen, &GrabRegion); + + depth = (format == XYPixmap) ? 1 : pDraw->depth; + + for(i = 0; i < PanoramiXNumScreens; i++) { + pDraw = pDrawables[i]; + + inOut = RECT_IN_REGION(pScreen,&XineramaScreenRegions[i],&SrcBox); + + if(inOut == rgnIN) { + (*pDraw->pScreen->GetImage)(pDraw, + SrcBox.x1 - pDraw->x - panoramiXdataPtr[i].x, + SrcBox.y1 - pDraw->y - panoramiXdataPtr[i].y, + width, height, format, planemask, data); + break; + } else if (inOut == rgnOUT) + continue; + + REGION_INTERSECT(pScreen, &GrabRegion, &SrcRegion, + &XineramaScreenRegions[i]); + + nbox = REGION_NUM_RECTS(&GrabRegion); + + if(nbox) { + pbox = REGION_RECTS(&GrabRegion); + + while(nbox--) { + w = pbox->x2 - pbox->x1; + h = pbox->y2 - pbox->y1; + ScratchPitch = PixmapBytePad(w, depth); + sizeNeeded = ScratchPitch * h; + + if(sizeNeeded > size) { + char *tmpdata = ScratchMem; + ScratchMem = xrealloc(ScratchMem, sizeNeeded); + if(ScratchMem) + size = sizeNeeded; + else { + ScratchMem = tmpdata; + break; + } + } + + x = pbox->x1 - pDraw->x - panoramiXdataPtr[i].x; + y = pbox->y1 - pDraw->y - panoramiXdataPtr[i].y; + + (*pDraw->pScreen->GetImage)(pDraw, x, y, w, h, + format, planemask, ScratchMem); + + /* copy the memory over */ + + if(depth == 1) { + int k, shift, leftover, index, index2; + + x = pbox->x1 - SrcBox.x1; + y = pbox->y1 - SrcBox.y1; + shift = x & 7; + x >>= 3; + leftover = w & 7; + w >>= 3; + + /* clean up the edge */ + if(leftover) { + int mask = (1 << leftover) - 1; + for(j = h, k = w; j--; k += ScratchPitch) + ScratchMem[k] &= mask; + } + + for(j = 0, index = (pitch * y) + x, index2 = 0; j < h; + j++, index += pitch, index2 += ScratchPitch) + { + if(w) { + if(!shift) + memcpy(data + index, ScratchMem + index2, w); + else + CopyBits(data + index, shift, + ScratchMem + index2, w); + } + + if(leftover) { + data[index + w] |= + SHIFT_L(ScratchMem[index2 + w], shift); + if((shift + leftover) > 8) + data[index + w + 1] |= + SHIFT_R(ScratchMem[index2 + w],(8 - shift)); + } + } + } else { + j = BitsPerPixel(depth) >> 3; + x = (pbox->x1 - SrcBox.x1) * j; + y = pbox->y1 - SrcBox.y1; + w *= j; + + for(j = 0; j < h; j++) { + memcpy(data + (pitch * (y + j)) + x, + ScratchMem + (ScratchPitch * j), w); + } + } + pbox++; + } + + REGION_SUBTRACT(pScreen, &SrcRegion, &SrcRegion, &GrabRegion); + if(!REGION_NOTEMPTY(pScreen, &SrcRegion)) + break; + } + + } + + if(ScratchMem) + xfree(ScratchMem); + + REGION_UNINIT(pScreen, &SrcRegion); + REGION_UNINIT(pScreen, &GrabRegion); +} |