コード例 #1
0
ファイル: cursor.c プロジェクト: gcampax/xserver
/**
 * To be called indirectly by DeleteResource; must use exactly two args.
 *
 *  \param value must conform to DeleteType
 */
int
FreeCursor(pointer value, XID cid)
{
    int nscr;
    CursorPtr pCurs = (CursorPtr) value;

    ScreenPtr pscr;
    DeviceIntPtr pDev = NULL;   /* unused anyway */


    UnrefCursor(pCurs);
    if (CursorRefCount(pCurs) != 0)
        return Success;

    BUG_WARN(CursorRefCount(pCurs) < 0);

    for (nscr = 0; nscr < screenInfo.numScreens; nscr++) {
        pscr = screenInfo.screens[nscr];
        (void) (*pscr->UnrealizeCursor) (pDev, pscr, pCurs);
    }
    FreeCursorBits(pCurs->bits);
    dixFiniPrivates(pCurs, PRIVATE_CURSOR);
    free(pCurs);
    return Success;
}
コード例 #2
0
/**
 * To be called indirectly by DeleteResource; must use exactly two args.
 *
 *  \param value must conform to DeleteType
 */
int
FreeCursor(pointer value, XID cid)
{
    int		nscr;
    CursorPtr 	pCurs = (CursorPtr)value;

    ScreenPtr	pscr;
    DeviceIntPtr pDev = NULL; /* unused anyway */

    if ( --pCurs->refcnt != 0)
	return(Success);

    for (nscr = 0; nscr < screenInfo.numScreens; nscr++)
    {
	pscr = screenInfo.screens[nscr];
        (void)( *pscr->UnrealizeCursor)(pDev, pscr, pCurs);
    }
    dixFreePrivates(pCurs->devPrivates);
    FreeCursorBits(pCurs->bits);
    xfree( pCurs);
    return(Success);
}
コード例 #3
0
ファイル: cursor.c プロジェクト: 4eremuxa/xserver
int
AllocGlyphCursor(Font source, unsigned sourceChar, Font mask, unsigned maskChar,
                unsigned foreRed, unsigned foreGreen, unsigned foreBlue, 
                unsigned backRed, unsigned backGreen, unsigned backBlue,
		CursorPtr *ppCurs, ClientPtr client, XID cid)
{
    FontPtr  sourcefont, maskfont;
    unsigned char   *srcbits;
    unsigned char   *mskbits;
    CursorMetricRec cm;
    int rc;
    CursorBitsPtr  bits;
    CursorPtr 	pCurs;
    GlyphSharePtr pShare;

    rc = dixLookupResourceByType((pointer *)&sourcefont, source, RT_FONT, client,
				 DixUseAccess);
    if (rc != Success)
    {
	client->errorValue = source;
	return rc;
    }
    rc = dixLookupResourceByType((pointer *)&maskfont, mask, RT_FONT, client,
				 DixUseAccess);
    if (rc != Success && mask != None)
    {
	client->errorValue = mask;
	return rc;
    }
    if (sourcefont != maskfont)
	pShare = (GlyphSharePtr)NULL;
    else
    {
	for (pShare = sharedGlyphs;
	     pShare &&
	     ((pShare->font != sourcefont) ||
	      (pShare->sourceChar != sourceChar) ||
	      (pShare->maskChar != maskChar));
	     pShare = pShare->next)
	    ;
    }
    if (pShare)
    {
	pCurs = (CursorPtr)calloc(CURSOR_REC_SIZE, 1);
	if (!pCurs)
	    return BadAlloc;
	dixInitPrivates(pCurs, pCurs + 1, PRIVATE_CURSOR);
	bits = pShare->bits;
	bits->refcnt++;
    }
    else
    {
	if (!CursorMetricsFromGlyph(sourcefont, sourceChar, &cm))
	{
	    client->errorValue = sourceChar;
	    return BadValue;
	}
	if (!maskfont)
	{
	    long n;
	    unsigned char *mskptr;

	    n = BitmapBytePad(cm.width)*(long)cm.height;
	    mskptr = mskbits = malloc(n);
	    if (!mskptr)
		return BadAlloc;
	    while (--n >= 0)
		*mskptr++ = ~0;
	}
	else
	{
	    if (!CursorMetricsFromGlyph(maskfont, maskChar, &cm))
	    {
		client->errorValue = maskChar;
		return BadValue;
	    }
	    if ((rc = ServerBitsFromGlyph(maskfont, maskChar, &cm, &mskbits)))
		return rc;
	}
	if ((rc = ServerBitsFromGlyph(sourcefont, sourceChar, &cm, &srcbits)))
	{
	    free(mskbits);
	    return rc;
	}
	if (sourcefont != maskfont)
	{
	    pCurs = 
                (CursorPtr)calloc(CURSOR_REC_SIZE + CURSOR_BITS_SIZE, 1);
	    if (pCurs)
		bits = (CursorBitsPtr)((char *)pCurs + CURSOR_REC_SIZE);
	    else
		bits = (CursorBitsPtr)NULL;
	}
	else
	{
	    pCurs = (CursorPtr)calloc(CURSOR_REC_SIZE, 1);
	    if (pCurs)
		bits = (CursorBitsPtr)calloc(CURSOR_BITS_SIZE, 1);
	    else
		bits = (CursorBitsPtr)NULL;
	}
	if (!bits)
	{
	    free(pCurs);
	    free(mskbits);
	    free(srcbits);
	    return BadAlloc;
	}
	dixInitPrivates(pCurs, pCurs + 1, PRIVATE_CURSOR);
	dixInitPrivates(bits, bits + 1, PRIVATE_CURSOR_BITS);
	bits->source = srcbits;
	bits->mask = mskbits;
#ifdef ARGB_CURSOR
	bits->argb = 0;
#endif
	bits->width = cm.width;
	bits->height = cm.height;
	bits->xhot = cm.xhot;
	bits->yhot = cm.yhot;
	if (sourcefont != maskfont)
	    bits->refcnt = -1;
	else
	{
	    bits->refcnt = 1;
	    pShare = malloc(sizeof(GlyphShare));
	    if (!pShare)
	    {
		FreeCursorBits(bits);
		return BadAlloc;
	    }
	    pShare->font = sourcefont;
	    sourcefont->refcnt++;
	    pShare->sourceChar = sourceChar;
	    pShare->maskChar = maskChar;
	    pShare->bits = bits;
	    pShare->next = sharedGlyphs;
	    sharedGlyphs = pShare;
	}
    }

    CheckForEmptyMask(bits);
    pCurs->bits = bits;
    pCurs->refcnt = 1;
#ifdef XFIXES
    pCurs->serialNumber = ++cursorSerial;
    pCurs->name = None;
#endif

    pCurs->foreRed = foreRed;
    pCurs->foreGreen = foreGreen;
    pCurs->foreBlue = foreBlue;

    pCurs->backRed = backRed;
    pCurs->backGreen = backGreen;
    pCurs->backBlue = backBlue;

    pCurs->id = cid;

    /* security creation/labeling check */
    rc = XaceHook(XACE_RESOURCE_ACCESS, client, cid, RT_CURSOR,
		  pCurs, RT_NONE, NULL, DixCreateAccess);
    if (rc != Success)
        goto error;

    rc = RealizeCursorAllScreens(pCurs);
    if (rc != Success)
        goto error;

    *ppCurs = pCurs;
    return Success;

error:
    FreeCursorBits(bits);
    dixFiniPrivates(pCurs, PRIVATE_CURSOR);
    free(pCurs);

    return rc;
}
コード例 #4
0
ファイル: cursor.c プロジェクト: 4eremuxa/xserver
/**
 * does nothing about the resource table, just creates the data structure.
 * does not copy the src and mask bits
 *
 *  \param psrcbits  server-defined padding
 *  \param pmaskbits server-defined padding
 *  \param argb      no padding
 */
int
AllocARGBCursor(unsigned char *psrcbits, unsigned char *pmaskbits,
		CARD32 *argb, CursorMetricPtr cm,
		unsigned foreRed, unsigned foreGreen, unsigned foreBlue, 
		unsigned backRed, unsigned backGreen, unsigned backBlue,
		CursorPtr *ppCurs, ClientPtr client, XID cid)
{
    CursorBitsPtr  bits;
    CursorPtr 	pCurs;
    int rc;

    *ppCurs = NULL;
    pCurs = (CursorPtr)calloc(CURSOR_REC_SIZE + CURSOR_BITS_SIZE, 1);
    if (!pCurs)
	return BadAlloc;

    bits = (CursorBitsPtr)((char *)pCurs + CURSOR_REC_SIZE);
    dixInitPrivates(pCurs, pCurs + 1, PRIVATE_CURSOR);
    dixInitPrivates(bits, bits + 1, PRIVATE_CURSOR_BITS)
    bits->source = psrcbits;
    bits->mask = pmaskbits;
#ifdef ARGB_CURSOR
    bits->argb = argb;
#endif
    bits->width = cm->width;
    bits->height = cm->height;
    bits->xhot = cm->xhot;
    bits->yhot = cm->yhot;
    pCurs->refcnt = 1;		
    bits->refcnt = -1;
    CheckForEmptyMask(bits);
    pCurs->bits = bits;
#ifdef XFIXES
    pCurs->serialNumber = ++cursorSerial;
    pCurs->name = None;
#endif

    pCurs->foreRed = foreRed;
    pCurs->foreGreen = foreGreen;
    pCurs->foreBlue = foreBlue;

    pCurs->backRed = backRed;
    pCurs->backGreen = backGreen;
    pCurs->backBlue = backBlue;

    pCurs->id = cid;

    /* security creation/labeling check */
    rc = XaceHook(XACE_RESOURCE_ACCESS, client, cid, RT_CURSOR,
		  pCurs, RT_NONE, NULL, DixCreateAccess);
    if (rc != Success)
        goto error;

    rc = RealizeCursorAllScreens(pCurs);
    if (rc != Success)
        goto error;

    *ppCurs = pCurs;
    return Success;

error:
    FreeCursorBits(bits);
    dixFiniPrivates(pCurs, PRIVATE_CURSOR);
    free(pCurs);

    return rc;
}