526 lines
16 KiB
C
526 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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#include "picturestr.h"
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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 miDCDeviceKeyRec;
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#define miDCDeviceKey (&miDCDeviceKeyRec)
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static Bool miDCCloseScreen(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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PicturePtr pRootPicture;
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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 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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PixmapPtr sourceBits; /* source bits */
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PixmapPtr maskBits; /* mask bits */
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PicturePtr pPicture;
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CursorPtr pCursor;
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} miDCScreenRec, *miDCScreenPtr;
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#define miGetDCScreen(s) ((miDCScreenPtr)(dixLookupPrivate(&(s)->devPrivates, miDCScreenKey)))
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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(&miDCDeviceKeyRec, pScreen, PRIVATE_DEVICE,
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0))
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return FALSE;
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pScreenPriv = calloc(1, 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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free((void *) 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 void
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miDCSwitchScreenCursor(ScreenPtr pScreen, CursorPtr pCursor, PixmapPtr sourceBits, PixmapPtr maskBits, PicturePtr pPicture)
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{
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miDCScreenPtr pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miDCScreenKey);
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if (pScreenPriv->sourceBits)
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(*pScreen->DestroyPixmap)(pScreenPriv->sourceBits);
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pScreenPriv->sourceBits = sourceBits;
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if (pScreenPriv->maskBits)
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(*pScreen->DestroyPixmap)(pScreenPriv->maskBits);
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pScreenPriv->maskBits = maskBits;
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if (pScreenPriv->pPicture)
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FreePicture(pScreenPriv->pPicture, 0);
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pScreenPriv->pPicture = pPicture;
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pScreenPriv->pCursor = pCursor;
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}
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static Bool
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miDCCloseScreen(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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miDCSwitchScreenCursor(pScreen, NULL, NULL, NULL, NULL);
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free((void *) pScreenPriv);
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return (*pScreen->CloseScreen) (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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return TRUE;
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}
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#define EnsurePicture(picture,draw,win) (picture || miDCMakePicture(&picture,draw,win))
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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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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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pFormat = PictureWindowFormat(pWin);
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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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static Bool
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miDCRealize(ScreenPtr pScreen, CursorPtr pCursor)
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{
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miDCScreenPtr pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miDCScreenKey);
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GCPtr pGC;
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ChangeGCVal gcvals;
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PixmapPtr sourceBits, maskBits;
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if (pScreenPriv->pCursor == pCursor)
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return TRUE;
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if (pCursor->bits->argb) {
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PixmapPtr pPixmap;
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PictFormatPtr pFormat;
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int error;
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PicturePtr pPicture;
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pFormat = PictureMatchFormat(pScreen, 32, PICT_a8r8g8b8);
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if (!pFormat)
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return FALSE;
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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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return FALSE;
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pGC = GetScratchGC(32, pScreen);
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if (!pGC) {
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(*pScreen->DestroyPixmap) (pPixmap);
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return FALSE;
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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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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 (!pPicture)
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return FALSE;
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miDCSwitchScreenCursor(pScreen, pCursor, NULL, NULL, pPicture);
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return TRUE;
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}
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sourceBits = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width,
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pCursor->bits->height, 1, 0);
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if (!sourceBits)
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return FALSE;
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maskBits = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width,
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pCursor->bits->height, 1, 0);
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if (!maskBits) {
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(*pScreen->DestroyPixmap) (sourceBits);
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return FALSE;
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}
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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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(*pScreen->DestroyPixmap) (sourceBits);
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(*pScreen->DestroyPixmap) (maskBits);
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return FALSE;
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}
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ValidateGC((DrawablePtr) sourceBits, pGC);
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(*pGC->ops->PutImage) ((DrawablePtr) 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) sourceBits, pGC);
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(*pGC->ops->PutImage) ((DrawablePtr) 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) maskBits, pGC);
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(*pGC->ops->PutImage) ((DrawablePtr) 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) maskBits, pGC);
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(*pGC->ops->PutImage) ((DrawablePtr) 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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miDCSwitchScreenCursor(pScreen, pCursor, sourceBits, maskBits, NULL);
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return TRUE;
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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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miDCScreenPtr pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miDCScreenKey);
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if (pCursor == pScreenPriv->pCursor)
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miDCSwitchScreenCursor(pScreen, NULL, NULL, NULL, NULL);
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return TRUE;
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}
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static void
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miDCPutBits(DrawablePtr pDrawable,
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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, unsigned h, unsigned long source, unsigned long mask)
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{
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miDCScreenPtr pScreenPriv = dixLookupPrivate(&pDrawable->pScreen->devPrivates, miDCScreenKey);
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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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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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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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x = x_org;
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y = y_org;
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}
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(*sourceGC->ops->PushPixels) (sourceGC, pScreenPriv->sourceBits, pDrawable, w, h,
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x, y);
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if (maskGC->fgPixel != mask) {
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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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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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x = x_org;
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y = y_org;
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}
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(*maskGC->ops->PushPixels) (maskGC, pScreenPriv->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 = dixLookupPrivate(&pScreen->devPrivates, miDCScreenKey);
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miDCBufferPtr pBuffer;
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WindowPtr pWin;
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if (!miDCRealize(pScreen, pCursor))
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return FALSE;
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pWin = pScreen->root;
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pBuffer = miGetDCDevice(pDev, pScreen);
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if (pScreenPriv->pPicture) {
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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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pScreenPriv->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, pCursor->bits->width, pCursor->bits->height);
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}
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else
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{
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miDCPutBits((DrawablePtr) pWin,
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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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miDCBufferPtr pBuffer;
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PixmapPtr pSave;
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WindowPtr pWin;
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GCPtr pGC;
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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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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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miDCBufferPtr pBuffer;
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PixmapPtr pSave;
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WindowPtr pWin;
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GCPtr pGC;
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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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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,
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pBuffer);
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pWin = pScreen->root;
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pBuffer->pSourceGC = miDCMakeGC(pWin);
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if (!pBuffer->pSourceGC)
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goto failure;
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pBuffer->pMaskGC = miDCMakeGC(pWin);
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if (!pBuffer->pMaskGC)
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goto failure;
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pBuffer->pSaveGC = miDCMakeGC(pWin);
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if (!pBuffer->pSaveGC)
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goto failure;
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pBuffer->pRestoreGC = miDCMakeGC(pWin);
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if (!pBuffer->pRestoreGC)
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goto failure;
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pBuffer->pRootPicture = NULL;
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/* (re)allocated lazily depending on the cursor size */
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pBuffer->pSave = NULL;
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}
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return TRUE;
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failure:
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miDCDeviceCleanup(pDev, pScreen);
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return FALSE;
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}
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void
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miDCDeviceCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)
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{
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miDCBufferPtr pBuffer;
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int i;
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if (DevHasCursor(pDev)) {
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for (i = 0; i < screenInfo.numScreens; i++) {
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pScreen = screenInfo.screens[i];
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pBuffer = miGetDCDevice(pDev, pScreen);
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if (pBuffer) {
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if (pBuffer->pSourceGC)
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FreeGC(pBuffer->pSourceGC, (GContext) 0);
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if (pBuffer->pMaskGC)
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FreeGC(pBuffer->pMaskGC, (GContext) 0);
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if (pBuffer->pSaveGC)
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FreeGC(pBuffer->pSaveGC, (GContext) 0);
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if (pBuffer->pRestoreGC)
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FreeGC(pBuffer->pRestoreGC, (GContext) 0);
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/* If a pRootPicture was allocated for a root window, it
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* is freed when that root window is destroyed, so don't
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* free it again here. */
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if (pBuffer->pSave)
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(*pScreen->DestroyPixmap) (pBuffer->pSave);
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free(pBuffer);
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dixSetScreenPrivate(&pDev->devPrivates, miDCDeviceKey, pScreen,
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NULL);
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}
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}
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}
|
|
}
|