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Diffstat (limited to 'mi/miscrinit.c')
| -rw-r--r-- | mi/miscrinit.c | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/mi/miscrinit.c b/mi/miscrinit.c new file mode 100644 index 000000000..1561c1844 --- /dev/null +++ b/mi/miscrinit.c @@ -0,0 +1,288 @@ +/* $Xorg: miscrinit.c,v 1.4 2001/02/09 02:05:21 xorgcvs Exp $ */ +/* + +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. + +*/ + +#include "X.h" +#include "servermd.h" +#include "misc.h" +#include "mi.h" +#include "scrnintstr.h" +#include "pixmapstr.h" +#include "mibstore.h" +#include "dix.h" +#include "miline.h" + +/* 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(pPixmap, width, height, depth, bitsPerPixel, devKind, + pPixData) + PixmapPtr pPixmap; + int width; + int height; + int depth; + int bitsPerPixel; + int devKind; + pointer pPixData; +{ + if (!pPixmap) + return FALSE; + pPixmap->drawable.depth = depth; + pPixmap->drawable.bitsPerPixel = bitsPerPixel; + pPixmap->drawable.id = 0; + pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER; + 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; + return TRUE; +} + + +/*ARGSUSED*/ +Bool +miCloseScreen (index, pScreen) + int index; + 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(pScreen) + 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); + if (!pPixmap) + return FALSE; + + if (!(*pScreen->ModifyPixmapHeader)(pPixmap, pScreen->width, + pScreen->height, pScreen->rootDepth, pScreen->rootDepth, + PixmapBytePad(pScrInitParms->width, pScreen->rootDepth), + pScrInitParms->pbits)) + return FALSE; + value = (pointer)pPixmap; + } + else + { + value = pScrInitParms->pbits; + } + xfree(pScreen->devPrivate); /* freeing miScreenInitParmsRec */ + pScreen->devPrivate = value; /* pPixmap or pbits */ + return TRUE; +} + +Bool +miScreenDevPrivateInit(pScreen, width, pbits) + register 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 = (miScreenInitParmsPtr)xalloc(sizeof(miScreenInitParmsRec)); + if (!pScrInitParms) + return FALSE; + pScrInitParms->pbits = pbits; + pScrInitParms->width = width; + pScreen->devPrivate = (pointer)pScrInitParms; + return TRUE; +} + +/* + * If you pass in bsfuncs, then you must preinitialize the missing + * screen procs before calling miScreenInit, so that the backing store + * code can correctly wrap them. + */ + +Bool +miScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width, + rootDepth, numDepths, depths, rootVisual, numVisuals, visuals, + bsfuncs) + register ScreenPtr pScreen; + pointer pbits; /* pointer to screen bits */ + int xsize, ysize; /* in pixels */ + int dpix, 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 */ + miBSFuncPtr bsfuncs; /* backing store functions */ +{ + 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 = Always; + pScreen->saveUnderSupport = NotUseful; + /* whitePixel, blackPixel */ + pScreen->ModifyPixmapHeader = miModifyPixmapHeader; + pScreen->CreateScreenResources = miCreateScreenResources; + pScreen->numVisuals = numVisuals; + pScreen->visuals = visuals; + if (width) + { +#ifdef MITSHM + ShmRegisterFbFuncs(pScreen); +#endif + pScreen->CloseScreen = miCloseScreen; + } + /* else CloseScreen */ + /* QueryBestSize, SaveScreen, GetImage, GetSpans */ + pScreen->PointerNonInterestBox = (void (*)()) 0; + pScreen->SourceValidate = (void (*)()) 0; + /* CreateWindow, DestroyWindow, PositionWindow, ChangeWindowAttributes */ + /* RealizeWindow, UnrealizeWindow */ + pScreen->ValidateTree = miValidateTree; + pScreen->PostValidateTree = (void (*)()) 0; + pScreen->WindowExposures = miWindowExposures; + /* PaintWindowBackground, PaintWindowBorder, CopyWindow */ + pScreen->ClearToBackground = miClearToBackground; + pScreen->ClipNotify = (void (*)()) 0; + /* CreatePixmap, DestroyPixmap */ + /* RealizeFont, UnrealizeFont */ + /* CreateGC */ + /* CreateColormap, DestroyColormap, InstallColormap, UninstallColormap */ + /* ListInstalledColormaps, StoreColors, ResolveColor */ + pScreen->RegionCreate = miRegionCreate; + pScreen->RegionInit = miRegionInit; + pScreen->RegionCopy = miRegionCopy; + pScreen->RegionDestroy = miRegionDestroy; + pScreen->RegionUninit = miRegionUninit; + pScreen->Intersect = miIntersect; + pScreen->Union = miUnion; + pScreen->Subtract = miSubtract; + pScreen->Inverse = miInverse; + pScreen->RegionReset = miRegionReset; + pScreen->TranslateRegion = miTranslateRegion; + pScreen->RectIn = miRectIn; + pScreen->PointInRegion = miPointInRegion; + pScreen->RegionNotEmpty = miRegionNotEmpty; + pScreen->RegionEmpty = miRegionEmpty; + pScreen->RegionExtents = miRegionExtents; + pScreen->RegionAppend = miRegionAppend; + pScreen->RegionValidate = miRegionValidate; + /* BitmapToRegion */ + pScreen->RectsToRegion = miRectsToRegion; + pScreen->SendGraphicsExpose = miSendGraphicsExpose; + pScreen->BlockHandler = (void (*)())NoopDDA; + pScreen->WakeupHandler = (void (*)())NoopDDA; + pScreen->blockData = (pointer)0; + pScreen->wakeupData = (pointer)0; + if (bsfuncs) + miInitializeBackingStore (pScreen, bsfuncs); + pScreen->MarkWindow = miMarkWindow; + pScreen->MarkOverlappedWindows = miMarkOverlappedWindows; + pScreen->ChangeSaveUnder = miChangeSaveUnder; + pScreen->PostChangeSaveUnder = miPostChangeSaveUnder; + pScreen->MoveWindow = miMoveWindow; + pScreen->ResizeWindow = miSlideAndSizeWindow; + pScreen->GetLayerWindow = miGetLayerWindow; + pScreen->HandleExposures = miHandleValidateExposures; + pScreen->ReparentWindow = (void (*)())0; + pScreen->ChangeBorderWidth = miChangeBorderWidth; +#ifdef SHAPE + pScreen->SetShape = miSetShape; +#endif + pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow; + + miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS); + + return miScreenDevPrivateInit(pScreen, width, pbits); +} + +int miZeroLineScreenIndex; +int miZeroLineGeneration; + +void +miSetZeroLineBias(pScreen, bias) + ScreenPtr pScreen; + unsigned int bias; +{ + if (miZeroLineGeneration != serverGeneration) + { + miZeroLineScreenIndex = AllocateScreenPrivateIndex(); + miZeroLineGeneration = serverGeneration; + } + if (miZeroLineScreenIndex >= 0) + pScreen->devPrivates[miZeroLineScreenIndex].uval = bias; +} |