ActivateDevice was ignoring errors from DeviceCursorInitialize, so cursor-related calls failed later. Jeremy Huddleston saw that crash in miPointerConstrainCursor, while with Xvfb I saw it in miSpriteRealizeCursor. miDCDeviceCleanup frees any non-NULL GCs. miDCDeviceInitialize calls Cleanup on any failure, but if it failed early then some of the pointers in the miDCBufferPtr were garbage. Switch from malloc to calloc to ensure everything's initialized safely first. With these two fixes, if CreateGC fails then the server gracefully fails in FatalError instead of segfaulting. Signed-off-by: Jamey Sharp <jamey@minilop.net> Cc: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Keith Packard <keithp@keithp.com>
837 lines
22 KiB
C
837 lines
22 KiB
C
/*
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* midispcur.c
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*
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* machine independent cursor display routines
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*/
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/*
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Copyright 1989, 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 in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization 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 "misc.h"
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# include "input.h"
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# include "cursorstr.h"
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# include "windowstr.h"
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# include "regionstr.h"
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# include "dixstruct.h"
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# include "scrnintstr.h"
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# include "servermd.h"
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# include "mipointer.h"
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# include "misprite.h"
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# include "gcstruct.h"
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#ifdef ARGB_CURSOR
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# include "picturestr.h"
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#endif
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# include "inputstr.h"
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/* per-screen private data */
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static int miDCScreenKeyIndex;
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static DevPrivateKey miDCScreenKey = &miDCScreenKeyIndex;
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static Bool miDCCloseScreen(int index, ScreenPtr pScreen);
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/* per device per-screen private data */
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static int miDCSpriteKeyIndex[MAXSCREENS];
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static DevPrivateKey miDCSpriteKey = miDCSpriteKeyIndex;
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typedef struct {
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GCPtr pSourceGC, pMaskGC;
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GCPtr pSaveGC, pRestoreGC;
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GCPtr pMoveGC;
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GCPtr pPixSourceGC, pPixMaskGC;
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PixmapPtr pSave, pTemp;
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#ifdef ARGB_CURSOR
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PicturePtr pRootPicture;
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PicturePtr pTempPicture;
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#endif
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} miDCBufferRec, *miDCBufferPtr;
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#define MIDCBUFFER(dev, screen) \
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((DevHasCursor(dev)) ? \
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(miDCBufferPtr)dixLookupPrivate(&dev->devPrivates, miDCSpriteKey + (screen)->myNum) : \
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(miDCBufferPtr)dixLookupPrivate(&dev->u.master->devPrivates, miDCSpriteKey + (screen)->myNum))
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/*
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* The core pointer buffer will point to the index of the virtual core pointer
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* in the pCursorBuffers array.
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*/
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typedef struct {
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CloseScreenProcPtr CloseScreen;
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} miDCScreenRec, *miDCScreenPtr;
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/* per-cursor per-screen private data */
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typedef struct {
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PixmapPtr sourceBits; /* source bits */
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PixmapPtr maskBits; /* mask bits */
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#ifdef ARGB_CURSOR
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PicturePtr pPicture;
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#endif
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} miDCCursorRec, *miDCCursorPtr;
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Bool
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miDCInitialize (ScreenPtr pScreen, miPointerScreenFuncPtr screenFuncs)
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{
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miDCScreenPtr pScreenPriv;
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pScreenPriv = malloc(sizeof (miDCScreenRec));
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if (!pScreenPriv)
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return FALSE;
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pScreenPriv->CloseScreen = pScreen->CloseScreen;
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pScreen->CloseScreen = miDCCloseScreen;
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dixSetPrivate(&pScreen->devPrivates, miDCScreenKey, pScreenPriv);
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if (!miSpriteInitialize (pScreen, screenFuncs))
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{
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free((pointer) pScreenPriv);
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return FALSE;
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}
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return TRUE;
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}
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static Bool
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miDCCloseScreen (int index, ScreenPtr pScreen)
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{
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miDCScreenPtr pScreenPriv;
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pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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miDCScreenKey);
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pScreen->CloseScreen = pScreenPriv->CloseScreen;
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free((pointer) pScreenPriv);
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return (*pScreen->CloseScreen) (index, pScreen);
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}
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Bool
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miDCRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
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{
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if (pCursor->bits->refcnt <= 1)
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dixSetPrivate(&pCursor->bits->devPrivates, CursorScreenKey(pScreen), NULL);
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return TRUE;
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}
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#ifdef ARGB_CURSOR
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static VisualPtr
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miDCGetWindowVisual (WindowPtr pWin)
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{
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ScreenPtr pScreen = pWin->drawable.pScreen;
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VisualID vid = wVisual (pWin);
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int i;
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for (i = 0; i < pScreen->numVisuals; i++)
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if (pScreen->visuals[i].vid == vid)
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return &pScreen->visuals[i];
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return 0;
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}
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static PicturePtr
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miDCMakePicture (PicturePtr *ppPicture, DrawablePtr pDraw, WindowPtr pWin)
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{
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ScreenPtr pScreen = pDraw->pScreen;
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VisualPtr pVisual;
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PictFormatPtr pFormat;
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XID subwindow_mode = IncludeInferiors;
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PicturePtr pPicture;
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int error;
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pVisual = miDCGetWindowVisual (pWin);
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if (!pVisual)
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return 0;
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pFormat = PictureMatchVisual (pScreen, pDraw->depth, pVisual);
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if (!pFormat)
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return 0;
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pPicture = CreatePicture (0, pDraw, pFormat,
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CPSubwindowMode, &subwindow_mode,
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serverClient, &error);
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*ppPicture = pPicture;
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return pPicture;
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}
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#endif
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static miDCCursorPtr
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miDCRealize (ScreenPtr pScreen, CursorPtr pCursor)
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{
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miDCCursorPtr pPriv;
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GCPtr pGC;
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ChangeGCVal gcvals;
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pPriv = malloc(sizeof (miDCCursorRec));
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if (!pPriv)
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return NULL;
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#ifdef ARGB_CURSOR
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if (pCursor->bits->argb)
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{
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PixmapPtr pPixmap;
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PictFormatPtr pFormat;
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int error;
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pFormat = PictureMatchFormat (pScreen, 32, PICT_a8r8g8b8);
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if (!pFormat)
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{
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free((pointer) pPriv);
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return NULL;
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}
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pPriv->sourceBits = 0;
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pPriv->maskBits = 0;
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pPixmap = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width,
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pCursor->bits->height, 32,
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CREATE_PIXMAP_USAGE_SCRATCH);
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if (!pPixmap)
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{
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free((pointer) pPriv);
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return NULL;
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}
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pGC = GetScratchGC (32, pScreen);
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if (!pGC)
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{
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(*pScreen->DestroyPixmap) (pPixmap);
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free((pointer) pPriv);
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return NULL;
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}
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ValidateGC (&pPixmap->drawable, pGC);
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(*pGC->ops->PutImage) (&pPixmap->drawable, pGC, 32,
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0, 0, pCursor->bits->width,
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pCursor->bits->height,
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0, ZPixmap, (char *) pCursor->bits->argb);
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FreeScratchGC (pGC);
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pPriv->pPicture = CreatePicture (0, &pPixmap->drawable,
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pFormat, 0, 0, serverClient, &error);
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(*pScreen->DestroyPixmap) (pPixmap);
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if (!pPriv->pPicture)
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{
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free((pointer) pPriv);
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return NULL;
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}
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dixSetPrivate(&pCursor->bits->devPrivates, CursorScreenKey(pScreen), pPriv);
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return pPriv;
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}
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pPriv->pPicture = 0;
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#endif
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pPriv->sourceBits = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width, pCursor->bits->height, 1, 0);
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if (!pPriv->sourceBits)
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{
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free((pointer) pPriv);
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return NULL;
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}
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pPriv->maskBits = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width, pCursor->bits->height, 1, 0);
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if (!pPriv->maskBits)
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{
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(*pScreen->DestroyPixmap) (pPriv->sourceBits);
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free((pointer) pPriv);
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return NULL;
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}
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dixSetPrivate(&pCursor->bits->devPrivates, CursorScreenKey(pScreen), pPriv);
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/* create the two sets of bits, clipping as appropriate */
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pGC = GetScratchGC (1, pScreen);
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if (!pGC)
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{
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(void) miDCUnrealizeCursor (pScreen, pCursor);
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return NULL;
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}
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ValidateGC ((DrawablePtr)pPriv->sourceBits, pGC);
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(*pGC->ops->PutImage) ((DrawablePtr)pPriv->sourceBits, pGC, 1,
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0, 0, pCursor->bits->width, pCursor->bits->height,
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0, XYPixmap, (char *)pCursor->bits->source);
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gcvals.val = GXand;
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ChangeGC (NullClient, pGC, GCFunction, &gcvals);
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ValidateGC ((DrawablePtr)pPriv->sourceBits, pGC);
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(*pGC->ops->PutImage) ((DrawablePtr)pPriv->sourceBits, pGC, 1,
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0, 0, pCursor->bits->width, pCursor->bits->height,
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0, XYPixmap, (char *)pCursor->bits->mask);
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/* mask bits -- pCursor->mask & ~pCursor->source */
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gcvals.val = GXcopy;
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ChangeGC (NullClient, pGC, GCFunction, &gcvals);
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ValidateGC ((DrawablePtr)pPriv->maskBits, pGC);
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(*pGC->ops->PutImage) ((DrawablePtr)pPriv->maskBits, pGC, 1,
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0, 0, pCursor->bits->width, pCursor->bits->height,
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0, XYPixmap, (char *)pCursor->bits->mask);
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gcvals.val = GXandInverted;
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ChangeGC (NullClient, pGC, GCFunction, &gcvals);
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ValidateGC ((DrawablePtr)pPriv->maskBits, pGC);
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(*pGC->ops->PutImage) ((DrawablePtr)pPriv->maskBits, pGC, 1,
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0, 0, pCursor->bits->width, pCursor->bits->height,
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0, XYPixmap, (char *)pCursor->bits->source);
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FreeScratchGC (pGC);
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return pPriv;
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}
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Bool
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miDCUnrealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
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{
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miDCCursorPtr pPriv;
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pPriv = (miDCCursorPtr)dixLookupPrivate(&pCursor->bits->devPrivates,
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CursorScreenKey(pScreen));
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if (pPriv && (pCursor->bits->refcnt <= 1))
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{
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if (pPriv->sourceBits)
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(*pScreen->DestroyPixmap) (pPriv->sourceBits);
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if (pPriv->maskBits)
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(*pScreen->DestroyPixmap) (pPriv->maskBits);
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#ifdef ARGB_CURSOR
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if (pPriv->pPicture)
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FreePicture (pPriv->pPicture, 0);
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#endif
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free((pointer) pPriv);
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dixSetPrivate(&pCursor->bits->devPrivates, CursorScreenKey(pScreen), NULL);
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}
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return TRUE;
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}
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static void
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miDCPutBits (
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DrawablePtr pDrawable,
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miDCCursorPtr pPriv,
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GCPtr sourceGC,
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GCPtr maskGC,
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int x_org,
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int y_org,
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unsigned w,
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unsigned h,
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unsigned long source,
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unsigned long mask)
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{
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ChangeGCVal gcval;
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int x, y;
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if (sourceGC->fgPixel != source)
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{
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gcval.val = source;
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ChangeGC (NullClient, sourceGC, GCForeground, &gcval);
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}
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if (sourceGC->serialNumber != pDrawable->serialNumber)
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ValidateGC (pDrawable, sourceGC);
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if(sourceGC->miTranslate)
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{
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x = pDrawable->x + x_org;
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y = pDrawable->y + y_org;
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}
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else
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{
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x = x_org;
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y = y_org;
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}
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(*sourceGC->ops->PushPixels) (sourceGC, pPriv->sourceBits, pDrawable, w, h, x, y);
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if (maskGC->fgPixel != mask)
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{
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gcval.val = mask;
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ChangeGC (NullClient, maskGC, GCForeground, &gcval);
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}
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if (maskGC->serialNumber != pDrawable->serialNumber)
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ValidateGC (pDrawable, maskGC);
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if(maskGC->miTranslate)
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{
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x = pDrawable->x + x_org;
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y = pDrawable->y + y_org;
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}
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else
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{
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x = x_org;
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y = y_org;
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}
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(*maskGC->ops->PushPixels) (maskGC, pPriv->maskBits, pDrawable, w, h, x, y);
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}
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static GCPtr
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miDCMakeGC(WindowPtr pWin)
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{
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GCPtr pGC;
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int status;
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XID gcvals[2];
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gcvals[0] = IncludeInferiors;
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gcvals[1] = FALSE;
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pGC = CreateGC((DrawablePtr)pWin,
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GCSubwindowMode|GCGraphicsExposures, gcvals, &status,
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(XID)0, serverClient);
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return pGC;
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}
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Bool
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miDCPutUpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
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int x, int y, unsigned long source, unsigned long mask)
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{
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miDCScreenPtr pScreenPriv;
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miDCCursorPtr pPriv;
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miDCBufferPtr pBuffer;
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WindowPtr pWin;
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pPriv = (miDCCursorPtr)dixLookupPrivate(&pCursor->bits->devPrivates,
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CursorScreenKey(pScreen));
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if (!pPriv)
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{
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pPriv = miDCRealize(pScreen, pCursor);
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if (!pPriv)
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return FALSE;
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}
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pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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miDCScreenKey);
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pWin = WindowTable[pScreen->myNum];
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pBuffer = MIDCBUFFER(pDev, pScreen);
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#ifdef ARGB_CURSOR
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if (pPriv->pPicture)
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{
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CompositePicture (PictOpOver,
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pPriv->pPicture,
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NULL,
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pBuffer->pRootPicture,
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0, 0, 0, 0,
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x, y,
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pCursor->bits->width,
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pCursor->bits->height);
|
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}
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else
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#endif
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{
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miDCPutBits ((DrawablePtr)pWin, pPriv,
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pBuffer->pSourceGC, pBuffer->pMaskGC,
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x, y, pCursor->bits->width, pCursor->bits->height,
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source, mask);
|
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}
|
|
return TRUE;
|
|
}
|
|
|
|
Bool
|
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miDCSaveUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
|
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int x, int y, int w, int h)
|
|
{
|
|
miDCScreenPtr pScreenPriv;
|
|
miDCBufferPtr pBuffer;
|
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PixmapPtr pSave;
|
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WindowPtr pWin;
|
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GCPtr pGC;
|
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|
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pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
|
|
miDCScreenKey);
|
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pBuffer = MIDCBUFFER(pDev, pScreen);
|
|
|
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pSave = pBuffer->pSave;
|
|
pWin = WindowTable[pScreen->myNum];
|
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if (!pSave || pSave->drawable.width < w || pSave->drawable.height < h)
|
|
{
|
|
if (pSave)
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(*pScreen->DestroyPixmap) (pSave);
|
|
pBuffer->pSave = pSave =
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(*pScreen->CreatePixmap) (pScreen, w, h, pScreen->rootDepth, 0);
|
|
if (!pSave)
|
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return FALSE;
|
|
}
|
|
|
|
pGC = pBuffer->pSaveGC;
|
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if (pSave->drawable.serialNumber != pGC->serialNumber)
|
|
ValidateGC ((DrawablePtr) pSave, pGC);
|
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(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,
|
|
x, y, w, h, 0, 0);
|
|
return TRUE;
|
|
}
|
|
|
|
Bool
|
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miDCRestoreUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
|
|
int x, int y, int w, int h)
|
|
{
|
|
miDCScreenPtr pScreenPriv;
|
|
miDCBufferPtr pBuffer;
|
|
PixmapPtr pSave;
|
|
WindowPtr pWin;
|
|
GCPtr pGC;
|
|
|
|
pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
|
|
miDCScreenKey);
|
|
pBuffer = MIDCBUFFER(pDev, pScreen);
|
|
pSave = pBuffer->pSave;
|
|
|
|
pWin = WindowTable[pScreen->myNum];
|
|
if (!pSave)
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return FALSE;
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pGC = pBuffer->pRestoreGC;
|
|
if (pWin->drawable.serialNumber != pGC->serialNumber)
|
|
ValidateGC ((DrawablePtr) pWin, pGC);
|
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(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
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|
0, 0, w, h, x, y);
|
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return TRUE;
|
|
}
|
|
|
|
Bool
|
|
miDCChangeSave (DeviceIntPtr pDev, ScreenPtr pScreen,
|
|
int x, int y, int w, int h, int dx, int dy)
|
|
{
|
|
miDCScreenPtr pScreenPriv;
|
|
miDCBufferPtr pBuffer;
|
|
PixmapPtr pSave;
|
|
WindowPtr pWin;
|
|
GCPtr pGC;
|
|
int sourcex, sourcey, destx, desty, copyw, copyh;
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|
|
pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
|
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miDCScreenKey);
|
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pBuffer = MIDCBUFFER(pDev, pScreen);
|
|
|
|
pSave = pBuffer->pSave;
|
|
pWin = WindowTable[pScreen->myNum];
|
|
/*
|
|
* restore the bits which are about to get trashed
|
|
*/
|
|
if (!pSave)
|
|
return FALSE;
|
|
|
|
pGC = pBuffer->pRestoreGC;
|
|
if (pWin->drawable.serialNumber != pGC->serialNumber)
|
|
ValidateGC ((DrawablePtr) pWin, pGC);
|
|
/*
|
|
* copy the old bits to the screen.
|
|
*/
|
|
if (dy > 0)
|
|
{
|
|
(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
|
|
0, h - dy, w, dy, x + dx, y + h);
|
|
}
|
|
else if (dy < 0)
|
|
{
|
|
(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
|
|
0, 0, w, -dy, x + dx, y + dy);
|
|
}
|
|
if (dy >= 0)
|
|
{
|
|
desty = y + dy;
|
|
sourcey = 0;
|
|
copyh = h - dy;
|
|
}
|
|
else
|
|
{
|
|
desty = y;
|
|
sourcey = - dy;
|
|
copyh = h + dy;
|
|
}
|
|
if (dx > 0)
|
|
{
|
|
(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
|
|
w - dx, sourcey, dx, copyh, x + w, desty);
|
|
}
|
|
else if (dx < 0)
|
|
{
|
|
(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
|
|
0, sourcey, -dx, copyh, x + dx, desty);
|
|
}
|
|
|
|
pGC = pBuffer->pSaveGC;
|
|
if (pSave->drawable.serialNumber != pGC->serialNumber)
|
|
ValidateGC ((DrawablePtr) pSave, pGC);
|
|
/*
|
|
* move the bits that are still valid within the pixmap
|
|
*/
|
|
if (dx >= 0)
|
|
{
|
|
sourcex = 0;
|
|
destx = dx;
|
|
copyw = w - dx;
|
|
}
|
|
else
|
|
{
|
|
destx = 0;
|
|
sourcex = - dx;
|
|
copyw = w + dx;
|
|
}
|
|
if (dy >= 0)
|
|
{
|
|
sourcey = 0;
|
|
desty = dy;
|
|
copyh = h - dy;
|
|
}
|
|
else
|
|
{
|
|
desty = 0;
|
|
sourcey = -dy;
|
|
copyh = h + dy;
|
|
}
|
|
(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pSave, pGC,
|
|
sourcex, sourcey, copyw, copyh, destx, desty);
|
|
/*
|
|
* copy the new bits from the screen into the remaining areas of the
|
|
* pixmap
|
|
*/
|
|
if (dy > 0)
|
|
{
|
|
(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,
|
|
x, y, w, dy, 0, 0);
|
|
}
|
|
else if (dy < 0)
|
|
{
|
|
(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,
|
|
x, y + h + dy, w, -dy, 0, h + dy);
|
|
}
|
|
if (dy >= 0)
|
|
{
|
|
desty = dy;
|
|
sourcey = y + dy;
|
|
copyh = h - dy;
|
|
}
|
|
else
|
|
{
|
|
desty = 0;
|
|
sourcey = y;
|
|
copyh = h + dy;
|
|
}
|
|
if (dx > 0)
|
|
{
|
|
(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,
|
|
x, sourcey, dx, copyh, 0, desty);
|
|
}
|
|
else if (dx < 0)
|
|
{
|
|
(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,
|
|
x + w + dx, sourcey, -dx, copyh, w + dx, desty);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
Bool
|
|
miDCMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
|
|
int x, int y, int w, int h, int dx, int dy,
|
|
unsigned long source, unsigned long mask)
|
|
{
|
|
miDCCursorPtr pPriv;
|
|
miDCScreenPtr pScreenPriv;
|
|
miDCBufferPtr pBuffer;
|
|
int status;
|
|
WindowPtr pWin;
|
|
GCPtr pGC;
|
|
XID gcval = FALSE;
|
|
PixmapPtr pTemp;
|
|
|
|
pPriv = (miDCCursorPtr)dixLookupPrivate(&pCursor->bits->devPrivates,
|
|
CursorScreenKey(pScreen));
|
|
if (!pPriv)
|
|
{
|
|
pPriv = miDCRealize(pScreen, pCursor);
|
|
if (!pPriv)
|
|
return FALSE;
|
|
}
|
|
pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
|
|
miDCScreenKey);
|
|
pWin = WindowTable[pScreen->myNum];
|
|
pBuffer = MIDCBUFFER(pDev, pScreen);
|
|
|
|
pTemp = pBuffer->pTemp;
|
|
if (!pTemp ||
|
|
pTemp->drawable.width != pBuffer->pSave->drawable.width ||
|
|
pTemp->drawable.height != pBuffer->pSave->drawable.height)
|
|
{
|
|
if (pTemp)
|
|
(*pScreen->DestroyPixmap) (pTemp);
|
|
#ifdef ARGB_CURSOR
|
|
if (pBuffer->pTempPicture)
|
|
{
|
|
FreePicture (pBuffer->pTempPicture, 0);
|
|
pBuffer->pTempPicture = 0;
|
|
}
|
|
#endif
|
|
pBuffer->pTemp = pTemp = (*pScreen->CreatePixmap)
|
|
(pScreen, w, h, pBuffer->pSave->drawable.depth, 0);
|
|
if (!pTemp)
|
|
return FALSE;
|
|
}
|
|
if (!pBuffer->pMoveGC)
|
|
{
|
|
pBuffer->pMoveGC = CreateGC ((DrawablePtr)pTemp,
|
|
GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
|
|
if (!pBuffer->pMoveGC)
|
|
return FALSE;
|
|
}
|
|
/*
|
|
* copy the saved area to a temporary pixmap
|
|
*/
|
|
pGC = pBuffer->pMoveGC;
|
|
if (pGC->serialNumber != pTemp->drawable.serialNumber)
|
|
ValidateGC ((DrawablePtr) pTemp, pGC);
|
|
(*pGC->ops->CopyArea)((DrawablePtr)pBuffer->pSave,
|
|
(DrawablePtr)pTemp, pGC, 0, 0, w, h, 0, 0);
|
|
|
|
/*
|
|
* draw the cursor in the temporary pixmap
|
|
*/
|
|
#ifdef ARGB_CURSOR
|
|
if (pPriv->pPicture)
|
|
{
|
|
if (!pBuffer->pTempPicture)
|
|
miDCMakePicture(&pBuffer->pTempPicture, &pTemp->drawable, pWin);
|
|
|
|
CompositePicture (PictOpOver,
|
|
pPriv->pPicture,
|
|
NULL,
|
|
pBuffer->pTempPicture,
|
|
0, 0, 0, 0,
|
|
dx, dy,
|
|
pCursor->bits->width,
|
|
pCursor->bits->height);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
miDCPutBits ((DrawablePtr)pTemp, pPriv,
|
|
pBuffer->pPixSourceGC, pBuffer->pPixMaskGC,
|
|
dx, dy, pCursor->bits->width, pCursor->bits->height,
|
|
source, mask);
|
|
}
|
|
|
|
pGC = pBuffer->pRestoreGC;
|
|
if (pWin->drawable.serialNumber != pGC->serialNumber)
|
|
ValidateGC ((DrawablePtr) pWin, pGC);
|
|
|
|
(*pGC->ops->CopyArea) ((DrawablePtr) pTemp, (DrawablePtr) pWin,
|
|
pGC,
|
|
0, 0, w, h, x, y);
|
|
return TRUE;
|
|
}
|
|
|
|
Bool
|
|
miDCDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)
|
|
{
|
|
miDCBufferPtr pBuffer;
|
|
WindowPtr pWin;
|
|
XID gcval = FALSE;
|
|
int status;
|
|
int i;
|
|
|
|
if (!DevHasCursor(pDev))
|
|
return TRUE;
|
|
|
|
for (i = 0; i < screenInfo.numScreens; i++)
|
|
{
|
|
pScreen = screenInfo.screens[i];
|
|
|
|
pBuffer = calloc(1, sizeof(miDCBufferRec));
|
|
if (!pBuffer)
|
|
goto failure;
|
|
|
|
dixSetPrivate(&pDev->devPrivates, miDCSpriteKey + pScreen->myNum, pBuffer);
|
|
pWin = WindowTable[pScreen->myNum];
|
|
|
|
pBuffer->pSourceGC = miDCMakeGC(pWin);
|
|
if (!pBuffer->pSourceGC)
|
|
goto failure;
|
|
|
|
pBuffer->pMaskGC = miDCMakeGC(pWin);
|
|
if (!pBuffer->pMaskGC)
|
|
goto failure;
|
|
|
|
pBuffer->pSaveGC = miDCMakeGC(pWin);
|
|
if (!pBuffer->pSaveGC)
|
|
goto failure;
|
|
|
|
pBuffer->pRestoreGC = miDCMakeGC(pWin);
|
|
if (!pBuffer->pRestoreGC)
|
|
goto failure;
|
|
|
|
pBuffer->pMoveGC = CreateGC ((DrawablePtr)pWin,
|
|
GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
|
|
if (!pBuffer->pMoveGC)
|
|
goto failure;
|
|
|
|
pBuffer->pPixSourceGC = CreateGC ((DrawablePtr)pWin,
|
|
GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
|
|
if (!pBuffer->pPixSourceGC)
|
|
goto failure;
|
|
|
|
pBuffer->pPixMaskGC = CreateGC ((DrawablePtr)pWin,
|
|
GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
|
|
if (!pBuffer->pPixMaskGC)
|
|
goto failure;
|
|
|
|
#ifdef ARGB_CURSOR
|
|
miDCMakePicture(&pBuffer->pRootPicture, &pWin->drawable, pWin);
|
|
if (!pBuffer->pRootPicture)
|
|
goto failure;
|
|
|
|
pBuffer->pTempPicture = NULL;
|
|
#endif
|
|
|
|
// these get (re)allocated lazily depending on the cursor size
|
|
pBuffer->pSave = pBuffer->pTemp = NULL;
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
failure:
|
|
|
|
miDCDeviceCleanup(pDev, pScreen);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
miDCDeviceCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)
|
|
{
|
|
miDCBufferPtr pBuffer;
|
|
int i;
|
|
|
|
if (DevHasCursor(pDev))
|
|
{
|
|
for (i = 0; i < screenInfo.numScreens; i++)
|
|
{
|
|
pScreen = screenInfo.screens[i];
|
|
|
|
pBuffer = MIDCBUFFER(pDev, pScreen);
|
|
|
|
if (pBuffer)
|
|
{
|
|
if (pBuffer->pSourceGC) FreeGC(pBuffer->pSourceGC, (GContext) 0);
|
|
if (pBuffer->pMaskGC) FreeGC(pBuffer->pMaskGC, (GContext) 0);
|
|
if (pBuffer->pSaveGC) FreeGC(pBuffer->pSaveGC, (GContext) 0);
|
|
if (pBuffer->pRestoreGC) FreeGC(pBuffer->pRestoreGC, (GContext) 0);
|
|
if (pBuffer->pMoveGC) FreeGC(pBuffer->pMoveGC, (GContext) 0);
|
|
if (pBuffer->pPixSourceGC) FreeGC(pBuffer->pPixSourceGC, (GContext) 0);
|
|
if (pBuffer->pPixMaskGC) FreeGC(pBuffer->pPixMaskGC, (GContext) 0);
|
|
|
|
if (pBuffer->pSave) (*pScreen->DestroyPixmap)(pBuffer->pSave);
|
|
if (pBuffer->pTemp) (*pScreen->DestroyPixmap)(pBuffer->pTemp);
|
|
|
|
free(pBuffer);
|
|
dixSetPrivate(&pDev->devPrivates, miDCSpriteKey + pScreen->myNum, NULL);
|
|
}
|
|
}
|
|
}
|
|
}
|