593 lines
16 KiB
C
593 lines
16 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 DevPrivateKeyRec miDCScreenKeyRec;
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#define miDCScreenKey (&miDCScreenKeyRec)
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static DevScreenPrivateKeyRec miDCCursorBitsKeyRec;
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#define miDCCursorBitsKey (&miDCCursorBitsKeyRec)
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static DevScreenPrivateKeyRec miDCDeviceKeyRec;
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#define miDCDeviceKey (&miDCDeviceKeyRec)
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static Bool miDCCloseScreen(int index, ScreenPtr pScreen);
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/* per device private data */
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typedef struct {
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GCPtr pSourceGC, pMaskGC;
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GCPtr pSaveGC, pRestoreGC;
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PixmapPtr pSave;
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#ifdef ARGB_CURSOR
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PicturePtr pRootPicture;
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#endif
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} miDCBufferRec, *miDCBufferPtr;
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#define miGetDCDevice(dev, screen) \
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((DevHasCursor(dev)) ? \
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(miDCBufferPtr)dixLookupScreenPrivate(&dev->devPrivates, miDCDeviceKey, screen) : \
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(miDCBufferPtr)dixLookupScreenPrivate(&GetMaster(dev, MASTER_POINTER)->devPrivates, miDCDeviceKey, screen))
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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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#define miGetDCScreen(s) ((miDCScreenPtr)(dixLookupPrivate(&(s)->devPrivates, miDCScreenKey)))
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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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if (!dixRegisterPrivateKey(&miDCScreenKeyRec, PRIVATE_SCREEN, 0) ||
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!dixRegisterScreenPrivateKey(&miDCCursorBitsKeyRec, pScreen, PRIVATE_CURSOR_BITS, 0) ||
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!dixRegisterScreenPrivateKey(&miDCDeviceKeyRec, pScreen, PRIVATE_DEVICE, 0))
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return FALSE;
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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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dixSetScreenPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey, pScreen, NULL);
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return TRUE;
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}
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#ifdef ARGB_CURSOR
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#define EnsurePicture(picture,draw,win) (picture || miDCMakePicture(&picture,draw,win))
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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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dixSetScreenPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey, 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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dixSetScreenPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey, 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)dixLookupScreenPrivate(&pCursor->bits->devPrivates,
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miDCCursorBitsKey, 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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dixSetScreenPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey, 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)dixLookupScreenPrivate(&pCursor->bits->devPrivates,
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miDCCursorBitsKey, 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 = pScreen->root;
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pBuffer = miGetDCDevice(pDev, pScreen);
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#ifdef ARGB_CURSOR
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if (pPriv->pPicture)
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{
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if (!EnsurePicture(pBuffer->pRootPicture, &pWin->drawable, pWin))
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return FALSE;
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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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}
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return TRUE;
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}
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Bool
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miDCSaveUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
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int x, int y, int w, int h)
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{
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miDCScreenPtr pScreenPriv;
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miDCBufferPtr pBuffer;
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PixmapPtr pSave;
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WindowPtr pWin;
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GCPtr pGC;
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pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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miDCScreenKey);
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pBuffer = miGetDCDevice(pDev, pScreen);
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pSave = pBuffer->pSave;
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pWin = pScreen->root;
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if (!pSave || pSave->drawable.width < w || pSave->drawable.height < h)
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{
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if (pSave)
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(*pScreen->DestroyPixmap) (pSave);
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pBuffer->pSave = pSave =
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(*pScreen->CreatePixmap) (pScreen, w, h, pScreen->rootDepth, 0);
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if (!pSave)
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return FALSE;
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}
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pGC = pBuffer->pSaveGC;
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if (pSave->drawable.serialNumber != pGC->serialNumber)
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ValidateGC ((DrawablePtr) pSave, pGC);
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(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,
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x, y, w, h, 0, 0);
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return TRUE;
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}
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Bool
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miDCRestoreUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
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int x, int y, int w, int h)
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{
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miDCScreenPtr pScreenPriv;
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miDCBufferPtr pBuffer;
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PixmapPtr pSave;
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WindowPtr pWin;
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GCPtr pGC;
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pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
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miDCScreenKey);
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pBuffer = miGetDCDevice(pDev, pScreen);
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pSave = pBuffer->pSave;
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pWin = pScreen->root;
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if (!pSave)
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return FALSE;
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pGC = pBuffer->pRestoreGC;
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if (pWin->drawable.serialNumber != pGC->serialNumber)
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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;
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}
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Bool
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miDCDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)
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{
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miDCBufferPtr pBuffer;
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WindowPtr pWin;
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int i;
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if (!DevHasCursor(pDev))
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return TRUE;
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for (i = 0; i < screenInfo.numScreens; i++)
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{
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pScreen = screenInfo.screens[i];
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pBuffer = calloc(1, sizeof(miDCBufferRec));
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if (!pBuffer)
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goto failure;
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|
|
|
dixSetScreenPrivate(&pDev->devPrivates, miDCDeviceKey, pScreen, pBuffer);
|
|
pWin = pScreen->root;
|
|
|
|
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;
|
|
|
|
#ifdef ARGB_CURSOR
|
|
pBuffer->pRootPicture = NULL;
|
|
#endif
|
|
|
|
/* (re)allocated lazily depending on the cursor size */
|
|
pBuffer->pSave = 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 = miGetDCDevice(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);
|
|
|
|
#ifdef ARGB_CURSOR
|
|
/* If a pRootPicture was allocated for a root window, it
|
|
* is freed when that root window is destroyed, so don't
|
|
* free it again here. */
|
|
#endif
|
|
|
|
if (pBuffer->pSave) (*pScreen->DestroyPixmap)(pBuffer->pSave);
|
|
|
|
free(pBuffer);
|
|
dixSetScreenPrivate(&pDev->devPrivates, miDCDeviceKey, pScreen, NULL);
|
|
}
|
|
}
|
|
}
|
|
}
|