/* Copyright 1990, 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. */ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif #include <X11/X.h> #include "servermd.h" #include "misc.h" #include "mi.h" #include "scrnintstr.h" #include "pixmapstr.h" #include "dix.h" #include "miline.h" #ifdef MITSHM #include <X11/extensions/shm.h> #include "shmint.h" #endif /* We use this structure to propogate some information from miScreenInit to * miCreateScreenResources. miScreenInit allocates the structure, fills it * in, and puts it into pScreen->devPrivate. miCreateScreenResources * extracts the info and frees the structure. We could've accomplished the * same thing by adding fields to the screen structure, but they would have * ended up being redundant, and would have exposed this mi implementation * detail to the whole server. */ typedef struct { pointer pbits; /* pointer to framebuffer */ int width; /* delta to add to a framebuffer addr to move one row down */ } miScreenInitParmsRec, *miScreenInitParmsPtr; /* this plugs into pScreen->ModifyPixmapHeader */ Bool miModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth, int bitsPerPixel, int devKind, pointer pPixData) { if (!pPixmap) return FALSE; /* * If all arguments are specified, reinitialize everything (including * validated state). */ if ((width > 0) && (height > 0) && (depth > 0) && (bitsPerPixel > 0) && (devKind > 0) && pPixData) { pPixmap->drawable.depth = depth; pPixmap->drawable.bitsPerPixel = bitsPerPixel; pPixmap->drawable.id = 0; pPixmap->drawable.x = 0; pPixmap->drawable.y = 0; pPixmap->drawable.width = width; pPixmap->drawable.height = height; pPixmap->devKind = devKind; pPixmap->refcnt = 1; pPixmap->devPrivate.ptr = pPixData; } else { /* * Only modify specified fields, keeping all others intact. */ if (width > 0) pPixmap->drawable.width = width; if (height > 0) pPixmap->drawable.height = height; if (depth > 0) pPixmap->drawable.depth = depth; if (bitsPerPixel > 0) pPixmap->drawable.bitsPerPixel = bitsPerPixel; else if ((bitsPerPixel < 0) && (depth > 0)) pPixmap->drawable.bitsPerPixel = BitsPerPixel(depth); /* * CAVEAT: Non-SI DDXen may use devKind and devPrivate fields for * other purposes. */ if (devKind > 0) pPixmap->devKind = devKind; else if ((devKind < 0) && ((width > 0) || (depth > 0))) pPixmap->devKind = PixmapBytePad(pPixmap->drawable.width, pPixmap->drawable.depth); if (pPixData) pPixmap->devPrivate.ptr = pPixData; } pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER; return TRUE; } static Bool miCloseScreen(ScreenPtr pScreen) { return ((*pScreen->DestroyPixmap) ((PixmapPtr) pScreen->devPrivate)); } /* With the introduction of pixmap privates, the "screen pixmap" can no * longer be created in miScreenInit, since all the modules that could * possibly ask for pixmap private space have not been initialized at * that time. pScreen->CreateScreenResources is called after all * possible private-requesting modules have been inited; we create the * screen pixmap here. */ Bool miCreateScreenResources(ScreenPtr pScreen) { miScreenInitParmsPtr pScrInitParms; pointer value; pScrInitParms = (miScreenInitParmsPtr) pScreen->devPrivate; /* if width is non-zero, pScreen->devPrivate will be a pixmap * else it will just take the value pbits */ if (pScrInitParms->width) { PixmapPtr pPixmap; /* create a pixmap with no data, then redirect it to point to * the screen */ pPixmap = (*pScreen->CreatePixmap) (pScreen, 0, 0, pScreen->rootDepth, 0); if (!pPixmap) return FALSE; if (!(*pScreen->ModifyPixmapHeader) (pPixmap, pScreen->width, pScreen->height, pScreen->rootDepth, BitsPerPixel(pScreen->rootDepth), PixmapBytePad(pScrInitParms->width, pScreen->rootDepth), pScrInitParms->pbits)) return FALSE; value = (pointer) pPixmap; } else { value = pScrInitParms->pbits; } free(pScreen->devPrivate); /* freeing miScreenInitParmsRec */ pScreen->devPrivate = value; /* pPixmap or pbits */ return TRUE; } Bool miScreenDevPrivateInit(ScreenPtr pScreen, int width, pointer pbits) { miScreenInitParmsPtr pScrInitParms; /* Stash pbits and width in a short-lived miScreenInitParmsRec attached * to the screen, until CreateScreenResources can put them in the * screen pixmap. */ pScrInitParms = malloc(sizeof(miScreenInitParmsRec)); if (!pScrInitParms) return FALSE; pScrInitParms->pbits = pbits; pScrInitParms->width = width; pScreen->devPrivate = (pointer) pScrInitParms; return TRUE; } static PixmapPtr miGetScreenPixmap(ScreenPtr pScreen) { return (PixmapPtr) (pScreen->devPrivate); } static void miSetScreenPixmap(PixmapPtr pPix) { if (pPix) pPix->drawable.pScreen->devPrivate = (pointer) pPix; } Bool miScreenInit(ScreenPtr pScreen, pointer pbits, /* pointer to screen bits */ int xsize, int ysize, /* in pixels */ int dpix, int dpiy, /* dots per inch */ int width, /* pixel width of frame buffer */ int rootDepth, /* depth of root window */ int numDepths, /* number of depths supported */ DepthRec * depths, /* supported depths */ VisualID rootVisual, /* root visual */ int numVisuals, /* number of visuals supported */ VisualRec * visuals /* supported visuals */ ) { pScreen->width = xsize; pScreen->height = ysize; pScreen->mmWidth = (xsize * 254 + dpix * 5) / (dpix * 10); pScreen->mmHeight = (ysize * 254 + dpiy * 5) / (dpiy * 10); pScreen->numDepths = numDepths; pScreen->rootDepth = rootDepth; pScreen->allowedDepths = depths; pScreen->rootVisual = rootVisual; /* defColormap */ pScreen->minInstalledCmaps = 1; pScreen->maxInstalledCmaps = 1; pScreen->backingStoreSupport = NotUseful; pScreen->saveUnderSupport = NotUseful; /* whitePixel, blackPixel */ pScreen->ModifyPixmapHeader = miModifyPixmapHeader; pScreen->CreateScreenResources = miCreateScreenResources; pScreen->GetScreenPixmap = miGetScreenPixmap; pScreen->SetScreenPixmap = miSetScreenPixmap; pScreen->numVisuals = numVisuals; pScreen->visuals = visuals; if (width) { #ifdef MITSHM ShmRegisterFbFuncs(pScreen); #endif pScreen->CloseScreen = miCloseScreen; } /* else CloseScreen */ /* QueryBestSize, SaveScreen, GetImage, GetSpans */ pScreen->SourceValidate = (SourceValidateProcPtr) 0; /* CreateWindow, DestroyWindow, PositionWindow, ChangeWindowAttributes */ /* RealizeWindow, UnrealizeWindow */ pScreen->ValidateTree = miValidateTree; pScreen->PostValidateTree = (PostValidateTreeProcPtr) 0; pScreen->WindowExposures = miWindowExposures; /* CopyWindow */ pScreen->ClearToBackground = miClearToBackground; pScreen->ClipNotify = (ClipNotifyProcPtr) 0; pScreen->RestackWindow = (RestackWindowProcPtr) 0; /* CreatePixmap, DestroyPixmap */ /* RealizeFont, UnrealizeFont */ /* CreateGC */ /* CreateColormap, DestroyColormap, InstallColormap, UninstallColormap */ /* ListInstalledColormaps, StoreColors, ResolveColor */ /* BitmapToRegion */ pScreen->SendGraphicsExpose = miSendGraphicsExpose; pScreen->BlockHandler = (ScreenBlockHandlerProcPtr) NoopDDA; pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr) NoopDDA; pScreen->MarkWindow = miMarkWindow; pScreen->MarkOverlappedWindows = miMarkOverlappedWindows; pScreen->MoveWindow = miMoveWindow; pScreen->ResizeWindow = miSlideAndSizeWindow; pScreen->GetLayerWindow = miGetLayerWindow; pScreen->HandleExposures = miHandleValidateExposures; pScreen->ReparentWindow = (ReparentWindowProcPtr) 0; pScreen->ChangeBorderWidth = miChangeBorderWidth; pScreen->SetShape = miSetShape; pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow; miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS); return miScreenDevPrivateInit(pScreen, width, pbits); } DevPrivateKeyRec miZeroLineScreenKeyRec; void miSetZeroLineBias(ScreenPtr pScreen, unsigned int bias) { if (!dixRegisterPrivateKey(&miZeroLineScreenKeyRec, PRIVATE_SCREEN, 0)) return; dixSetPrivate(&pScreen->devPrivates, miZeroLineScreenKey, (unsigned long *) (unsigned long) bias); }