e4d11e58ce
This was an attempt to avoid scratch gc creation and validation for paintwin because that was expensive. This is not the case in current servers, and the danger of failure to implement it correctly (as seen in all previous implementations) is high enough to justify removing it. No performance difference detected with x11perf -create -move -resize -circulate on Xvfb. Leave the screen hooks for PaintWindow* in for now to avoid ABI change.
341 lines
10 KiB
C
341 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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#define _XSHM_SERVER_
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#include <X11/extensions/XShm.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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{
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pointer 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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_X_EXPORT Bool
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miModifyPixmapHeader(pPixmap, width, height, depth, bitsPerPixel, devKind,
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pPixData)
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PixmapPtr pPixmap;
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int width;
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int height;
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int depth;
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int bitsPerPixel;
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int devKind;
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pointer 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.serialNumber = NEXT_SERIAL_NUMBER;
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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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} 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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return TRUE;
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}
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static Bool
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miCloseScreen (int iScreen, 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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_X_EXPORT Bool
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miCreateScreenResources(pScreen)
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ScreenPtr pScreen;
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{
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miScreenInitParmsPtr pScrInitParms;
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pointer 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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{
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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 = (*pScreen->CreatePixmap)(pScreen, 0, 0, pScreen->rootDepth);
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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, pScreen->rootDepth,
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BitsPerPixel(pScreen->rootDepth),
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PixmapBytePad(pScrInitParms->width, pScreen->rootDepth),
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pScrInitParms->pbits))
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return FALSE;
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value = (pointer)pPixmap;
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}
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else
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{
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value = pScrInitParms->pbits;
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}
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xfree(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(pScreen, width, pbits)
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ScreenPtr pScreen;
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int width;
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pointer 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 = (miScreenInitParmsPtr)xalloc(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 = (pointer)pScrInitParms;
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return TRUE;
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}
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_X_EXPORT Bool
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miScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width,
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rootDepth, numDepths, depths, rootVisual, numVisuals, visuals)
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ScreenPtr pScreen;
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pointer pbits; /* pointer to screen bits */
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int xsize, ysize; /* in pixels */
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int dpix, 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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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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{
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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->PointerNonInterestBox = (PointerNonInterestBoxProcPtr) 0;
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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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/* 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->SendGraphicsExpose = miSendGraphicsExpose;
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pScreen->BlockHandler = (ScreenBlockHandlerProcPtr)NoopDDA;
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pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr)NoopDDA;
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pScreen->blockData = (pointer)0;
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pScreen->wakeupData = (pointer)0;
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pScreen->MarkWindow = miMarkWindow;
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pScreen->MarkOverlappedWindows = miMarkOverlappedWindows;
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pScreen->ChangeSaveUnder = miChangeSaveUnder;
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pScreen->PostChangeSaveUnder = miPostChangeSaveUnder;
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pScreen->MoveWindow = miMoveWindow;
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pScreen->ResizeWindow = miSlideAndSizeWindow;
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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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#ifdef SHAPE
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pScreen->SetShape = miSetShape;
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#endif
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pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow;
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pScreen->SaveDoomedAreas = 0;
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pScreen->RestoreAreas = 0;
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pScreen->ExposeCopy = 0;
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pScreen->TranslateBackingStore = 0;
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pScreen->ClearBackingStore = 0;
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pScreen->DrawGuarantee = 0;
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miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS);
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return miScreenDevPrivateInit(pScreen, width, pbits);
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}
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_X_EXPORT int
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miAllocateGCPrivateIndex()
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{
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static int privateIndex = -1;
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static unsigned long miGeneration = 0;
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if (miGeneration != serverGeneration)
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{
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privateIndex = AllocateGCPrivateIndex();
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miGeneration = serverGeneration;
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}
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return privateIndex;
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}
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_X_EXPORT int miZeroLineScreenIndex;
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static unsigned int miZeroLineGeneration = 0;
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_X_EXPORT void
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miSetZeroLineBias(pScreen, bias)
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ScreenPtr pScreen;
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unsigned int bias;
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{
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if (miZeroLineGeneration != serverGeneration)
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{
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miZeroLineScreenIndex = AllocateScreenPrivateIndex();
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miZeroLineGeneration = serverGeneration;
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}
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if (miZeroLineScreenIndex >= 0)
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pScreen->devPrivates[miZeroLineScreenIndex].uval = bias;
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}
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_X_EXPORT PixmapPtr
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miGetScreenPixmap(pScreen)
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ScreenPtr pScreen;
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{
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return (PixmapPtr)(pScreen->devPrivate);
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}
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_X_EXPORT void
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miSetScreenPixmap(pPix)
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PixmapPtr pPix;
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{
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if (pPix)
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pPix->drawable.pScreen->devPrivate = (pointer)pPix;
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}
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