293 lines
10 KiB
C
293 lines
10 KiB
C
/*
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Copyright 1990, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall
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not be used in advertising or otherwise to promote the sale, use or
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other dealings in this Software without prior written authorization
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from The Open Group.
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <X11/X.h>
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#include "servermd.h"
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#include "misc.h"
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#include "mi.h"
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#include "scrnintstr.h"
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#include "pixmapstr.h"
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#include "dix.h"
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#include "miline.h"
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#ifdef MITSHM
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#include <X11/extensions/shm.h>
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#include "shmint.h"
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#endif
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/* We use this structure to propogate some information from miScreenInit to
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* miCreateScreenResources. miScreenInit allocates the structure, fills it
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* in, and puts it into pScreen->devPrivate. miCreateScreenResources
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* extracts the info and frees the structure. We could've accomplished the
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* same thing by adding fields to the screen structure, but they would have
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* ended up being redundant, and would have exposed this mi implementation
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* detail to the whole server.
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*/
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typedef struct {
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void *pbits; /* pointer to framebuffer */
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int width; /* delta to add to a framebuffer addr to move one row down */
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} miScreenInitParmsRec, *miScreenInitParmsPtr;
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/* this plugs into pScreen->ModifyPixmapHeader */
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Bool
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miModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth,
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int bitsPerPixel, int devKind, void *pPixData)
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{
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if (!pPixmap)
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return FALSE;
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/*
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* If all arguments are specified, reinitialize everything (including
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* validated state).
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*/
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if ((width > 0) && (height > 0) && (depth > 0) && (bitsPerPixel > 0) &&
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(devKind > 0) && pPixData) {
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pPixmap->drawable.depth = depth;
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pPixmap->drawable.bitsPerPixel = bitsPerPixel;
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pPixmap->drawable.id = 0;
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pPixmap->drawable.x = 0;
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pPixmap->drawable.y = 0;
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pPixmap->drawable.width = width;
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pPixmap->drawable.height = height;
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pPixmap->devKind = devKind;
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pPixmap->refcnt = 1;
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pPixmap->devPrivate.ptr = pPixData;
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}
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else {
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/*
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* Only modify specified fields, keeping all others intact.
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*/
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if (width > 0)
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pPixmap->drawable.width = width;
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if (height > 0)
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pPixmap->drawable.height = height;
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if (depth > 0)
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pPixmap->drawable.depth = depth;
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if (bitsPerPixel > 0)
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pPixmap->drawable.bitsPerPixel = bitsPerPixel;
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else if ((bitsPerPixel < 0) && (depth > 0))
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pPixmap->drawable.bitsPerPixel = BitsPerPixel(depth);
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/*
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* CAVEAT: Non-SI DDXen may use devKind and devPrivate fields for
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* other purposes.
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*/
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if (devKind > 0)
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pPixmap->devKind = devKind;
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else if ((devKind < 0) && ((width > 0) || (depth > 0)))
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pPixmap->devKind = PixmapBytePad(pPixmap->drawable.width,
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pPixmap->drawable.depth);
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if (pPixData)
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pPixmap->devPrivate.ptr = pPixData;
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}
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pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
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return TRUE;
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}
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static Bool
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miCloseScreen(ScreenPtr pScreen)
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{
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return ((*pScreen->DestroyPixmap) ((PixmapPtr) pScreen->devPrivate));
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}
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/* With the introduction of pixmap privates, the "screen pixmap" can no
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* longer be created in miScreenInit, since all the modules that could
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* possibly ask for pixmap private space have not been initialized at
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* that time. pScreen->CreateScreenResources is called after all
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* possible private-requesting modules have been inited; we create the
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* screen pixmap here.
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*/
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Bool
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miCreateScreenResources(ScreenPtr pScreen)
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{
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miScreenInitParmsPtr pScrInitParms;
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void *value;
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pScrInitParms = (miScreenInitParmsPtr) pScreen->devPrivate;
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/* if width is non-zero, pScreen->devPrivate will be a pixmap
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* else it will just take the value pbits
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*/
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if (pScrInitParms->width) {
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PixmapPtr pPixmap;
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/* create a pixmap with no data, then redirect it to point to
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* the screen
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*/
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pPixmap =
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(*pScreen->CreatePixmap) (pScreen, 0, 0, pScreen->rootDepth, 0);
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if (!pPixmap)
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return FALSE;
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if (!(*pScreen->ModifyPixmapHeader) (pPixmap, pScreen->width,
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pScreen->height,
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pScreen->rootDepth,
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BitsPerPixel(pScreen->rootDepth),
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PixmapBytePad(pScrInitParms->width,
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pScreen->rootDepth),
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pScrInitParms->pbits))
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return FALSE;
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value = (void *) pPixmap;
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}
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else {
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value = pScrInitParms->pbits;
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}
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free(pScreen->devPrivate); /* freeing miScreenInitParmsRec */
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pScreen->devPrivate = value; /* pPixmap or pbits */
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return TRUE;
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}
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Bool
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miScreenDevPrivateInit(ScreenPtr pScreen, int width, void *pbits)
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{
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miScreenInitParmsPtr pScrInitParms;
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/* Stash pbits and width in a short-lived miScreenInitParmsRec attached
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* to the screen, until CreateScreenResources can put them in the
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* screen pixmap.
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*/
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pScrInitParms = malloc(sizeof(miScreenInitParmsRec));
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if (!pScrInitParms)
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return FALSE;
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pScrInitParms->pbits = pbits;
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pScrInitParms->width = width;
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pScreen->devPrivate = (void *) pScrInitParms;
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return TRUE;
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}
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static PixmapPtr
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miGetScreenPixmap(ScreenPtr pScreen)
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{
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return (PixmapPtr) (pScreen->devPrivate);
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}
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static void
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miSetScreenPixmap(PixmapPtr pPix)
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{
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if (pPix)
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pPix->drawable.pScreen->devPrivate = (void *) pPix;
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}
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Bool
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miScreenInit(ScreenPtr pScreen, void *pbits, /* pointer to screen bits */
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int xsize, int ysize, /* in pixels */
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int dpix, int dpiy, /* dots per inch */
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int width, /* pixel width of frame buffer */
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int rootDepth, /* depth of root window */
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int numDepths, /* number of depths supported */
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DepthRec * depths, /* supported depths */
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VisualID rootVisual, /* root visual */
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int numVisuals, /* number of visuals supported */
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VisualRec * visuals /* supported visuals */
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)
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{
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pScreen->width = xsize;
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pScreen->height = ysize;
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pScreen->mmWidth = (xsize * 254 + dpix * 5) / (dpix * 10);
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pScreen->mmHeight = (ysize * 254 + dpiy * 5) / (dpiy * 10);
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pScreen->numDepths = numDepths;
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pScreen->rootDepth = rootDepth;
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pScreen->allowedDepths = depths;
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pScreen->rootVisual = rootVisual;
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/* defColormap */
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pScreen->minInstalledCmaps = 1;
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pScreen->maxInstalledCmaps = 1;
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pScreen->backingStoreSupport = NotUseful;
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pScreen->saveUnderSupport = NotUseful;
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/* whitePixel, blackPixel */
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pScreen->ModifyPixmapHeader = miModifyPixmapHeader;
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pScreen->CreateScreenResources = miCreateScreenResources;
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pScreen->GetScreenPixmap = miGetScreenPixmap;
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pScreen->SetScreenPixmap = miSetScreenPixmap;
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pScreen->numVisuals = numVisuals;
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pScreen->visuals = visuals;
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if (width) {
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#ifdef MITSHM
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ShmRegisterFbFuncs(pScreen);
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#endif
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pScreen->CloseScreen = miCloseScreen;
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}
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/* else CloseScreen */
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/* QueryBestSize, SaveScreen, GetImage, GetSpans */
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pScreen->SourceValidate = (SourceValidateProcPtr) 0;
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/* CreateWindow, DestroyWindow, PositionWindow, ChangeWindowAttributes */
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/* RealizeWindow, UnrealizeWindow */
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pScreen->ValidateTree = miValidateTree;
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pScreen->PostValidateTree = (PostValidateTreeProcPtr) 0;
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pScreen->WindowExposures = miWindowExposures;
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/* CopyWindow */
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pScreen->ClearToBackground = miClearToBackground;
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pScreen->ClipNotify = (ClipNotifyProcPtr) 0;
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pScreen->RestackWindow = (RestackWindowProcPtr) 0;
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pScreen->PaintWindow = miPaintWindow;
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/* CreatePixmap, DestroyPixmap */
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/* RealizeFont, UnrealizeFont */
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/* CreateGC */
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/* CreateColormap, DestroyColormap, InstallColormap, UninstallColormap */
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/* ListInstalledColormaps, StoreColors, ResolveColor */
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/* BitmapToRegion */
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pScreen->BlockHandler = (ScreenBlockHandlerProcPtr) NoopDDA;
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pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr) NoopDDA;
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pScreen->MarkWindow = miMarkWindow;
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pScreen->MarkOverlappedWindows = miMarkOverlappedWindows;
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pScreen->MoveWindow = miMoveWindow;
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pScreen->ResizeWindow = miResizeWindow;
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pScreen->GetLayerWindow = miGetLayerWindow;
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pScreen->HandleExposures = miHandleValidateExposures;
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pScreen->ReparentWindow = (ReparentWindowProcPtr) 0;
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pScreen->ChangeBorderWidth = miChangeBorderWidth;
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pScreen->SetShape = miSetShape;
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pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow;
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pScreen->XYToWindow = miXYToWindow;
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miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS);
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return miScreenDevPrivateInit(pScreen, width, pbits);
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}
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DevPrivateKeyRec miZeroLineScreenKeyRec;
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void
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miSetZeroLineBias(ScreenPtr pScreen, unsigned int bias)
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{
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if (!dixRegisterPrivateKey(&miZeroLineScreenKeyRec, PRIVATE_SCREEN, 0))
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return;
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dixSetPrivate(&pScreen->devPrivates, miZeroLineScreenKey,
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(unsigned long *) (unsigned long) bias);
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}
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