diff options
Diffstat (limited to 'xorg-server/dix/cursor.c')
| -rw-r--r-- | xorg-server/dix/cursor.c | 1027 |
1 files changed, 512 insertions, 515 deletions
diff --git a/xorg-server/dix/cursor.c b/xorg-server/dix/cursor.c index acd118a1c..c191c1e88 100644 --- a/xorg-server/dix/cursor.c +++ b/xorg-server/dix/cursor.c @@ -1,515 +1,512 @@ -/***********************************************************
-
-Copyright 1987, 1998 The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-
-
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xmd.h>
-#include "servermd.h"
-#include "scrnintstr.h"
-#include "dixstruct.h"
-#include "cursorstr.h"
-#include "dixfontstr.h"
-#include "opaque.h"
-#include "inputstr.h"
-#include "xace.h"
-
-typedef struct _GlyphShare {
- FontPtr font;
- unsigned short sourceChar;
- unsigned short maskChar;
- CursorBitsPtr bits;
- struct _GlyphShare *next;
-} GlyphShare, *GlyphSharePtr;
-
-static GlyphSharePtr sharedGlyphs = (GlyphSharePtr)NULL;
-
-DevPrivateKeyRec cursorScreenDevPriv[MAXSCREENS];
-
-#ifdef XFIXES
-static CARD32 cursorSerial;
-#endif
-
-static void
-FreeCursorBits(CursorBitsPtr bits)
-{
- if (--bits->refcnt > 0)
- return;
- free(bits->source);
- free(bits->mask);
-#ifdef ARGB_CURSOR
- free(bits->argb);
-#endif
- dixFiniPrivates(bits, PRIVATE_CURSOR_BITS);
- if (bits->refcnt == 0)
- {
- GlyphSharePtr *prev, this;
-
- for (prev = &sharedGlyphs;
- (this = *prev) && (this->bits != bits);
- prev = &this->next)
- ;
- if (this)
- {
- *prev = this->next;
- CloseFont(this->font, (Font)0);
- free(this);
- }
- free(bits);
- }
-}
-
-/**
- * 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);
- }
- FreeCursorBits(pCurs->bits);
- dixFiniPrivates(pCurs, PRIVATE_CURSOR);
- free( pCurs);
- return Success;
-}
-
-
-/*
- * We check for empty cursors so that we won't have to display them
- */
-static void
-CheckForEmptyMask(CursorBitsPtr bits)
-{
- unsigned char *msk = bits->mask;
- int n = BitmapBytePad(bits->width) * bits->height;
-
- bits->emptyMask = FALSE;
- while(n--)
- if(*(msk++) != 0) return;
-#ifdef ARGB_CURSOR
- if (bits->argb)
- {
- CARD32 *argb = bits->argb;
- int n = bits->width * bits->height;
- while (n--)
- if (*argb++ & 0xff000000) return;
- }
-#endif
- bits->emptyMask = TRUE;
-}
-
-/**
- * realize the cursor for every screen. Do not change the refcnt, this will be
- * changed when ChangeToCursor actually changes the sprite.
- *
- * @return Success if all cursors realize on all screens, BadAlloc if realize
- * failed for a device on a given screen.
- */
-static int
-RealizeCursorAllScreens(CursorPtr pCurs)
-{
- DeviceIntPtr pDev;
- ScreenPtr pscr;
- int nscr;
-
- for (nscr = 0; nscr < screenInfo.numScreens; nscr++)
- {
- pscr = screenInfo.screens[nscr];
- for (pDev = inputInfo.devices; pDev; pDev = pDev->next)
- {
- if (DevHasCursor(pDev))
- {
- if (!( *pscr->RealizeCursor)(pDev, pscr, pCurs))
- {
- /* Realize failed for device pDev on screen pscr.
- * We have to assume that for all devices before, realize
- * worked. We need to rollback all devices so far on the
- * current screen and then all devices on previous
- * screens.
- */
- DeviceIntPtr pDevIt = inputInfo.devices; /*dev iterator*/
- while(pDevIt && pDevIt != pDev)
- {
- if (DevHasCursor(pDevIt))
- ( *pscr->UnrealizeCursor)(pDevIt, pscr, pCurs);
- pDevIt = pDevIt->next;
- }
- while (--nscr >= 0)
- {
- pscr = screenInfo.screens[nscr];
- /* now unrealize all devices on previous screens */
- pDevIt = inputInfo.devices;
- while (pDevIt)
- {
- if (DevHasCursor(pDevIt))
- ( *pscr->UnrealizeCursor)(pDevIt, pscr, pCurs);
- pDevIt = pDevIt->next;
- }
- ( *pscr->UnrealizeCursor)(pDev, pscr, pCurs);
- }
- return BadAlloc;
- }
- }
- }
- }
-
- return Success;
-}
-
-
-/**
- * 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)
- {
- free(psrcbits);
- free(pmaskbits);
- 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;
-}
-
-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;
-}
-
-/** CreateRootCursor
- *
- * look up the name of a font
- * open the font
- * add the font to the resource table
- * make a cursor from the glyphs
- * add the cursor to the resource table
- *************************************************************/
-
-CursorPtr
-CreateRootCursor(char *unused1, unsigned int unused2)
-{
- CursorPtr curs;
- FontPtr cursorfont;
- int err;
- XID fontID;
-
- fontID = FakeClientID(0);
- err = OpenFont(serverClient, fontID, FontLoadAll | FontOpenSync,
- (unsigned)strlen(defaultCursorFont), defaultCursorFont);
- if (err != Success)
- return NullCursor;
-
- err = dixLookupResourceByType((pointer *)&cursorfont, fontID, RT_FONT,
- serverClient, DixReadAccess);
- if (err != Success)
- return NullCursor;
- if (AllocGlyphCursor(fontID, 0, fontID, 1, 0, 0, 0, ~0, ~0, ~0,
- &curs, serverClient, (XID)0) != Success)
- return NullCursor;
-
- if (!AddResource(FakeClientID(0), RT_CURSOR, (pointer)curs))
- return NullCursor;
-
- return curs;
-}
+/*********************************************************** + +Copyright 1987, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + + +Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the name of Digital not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +******************************************************************/ + + + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <X11/X.h> +#include <X11/Xmd.h> +#include "servermd.h" +#include "scrnintstr.h" +#include "dixstruct.h" +#include "cursorstr.h" +#include "dixfontstr.h" +#include "opaque.h" +#include "inputstr.h" +#include "xace.h" + +typedef struct _GlyphShare { + FontPtr font; + unsigned short sourceChar; + unsigned short maskChar; + CursorBitsPtr bits; + struct _GlyphShare *next; +} GlyphShare, *GlyphSharePtr; + +static GlyphSharePtr sharedGlyphs = (GlyphSharePtr)NULL; + +DevPrivateKeyRec cursorScreenDevPriv[MAXSCREENS]; + +#ifdef XFIXES +static CARD32 cursorSerial; +#endif + +static void +FreeCursorBits(CursorBitsPtr bits) +{ + if (--bits->refcnt > 0) + return; + free(bits->source); + free(bits->mask); +#ifdef ARGB_CURSOR + free(bits->argb); +#endif + dixFiniPrivates(bits, PRIVATE_CURSOR_BITS); + if (bits->refcnt == 0) + { + GlyphSharePtr *prev, this; + + for (prev = &sharedGlyphs; + (this = *prev) && (this->bits != bits); + prev = &this->next) + ; + if (this) + { + *prev = this->next; + CloseFont(this->font, (Font)0); + free(this); + } + free(bits); + } +} + +/** + * 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); + } + FreeCursorBits(pCurs->bits); + dixFiniPrivates(pCurs, PRIVATE_CURSOR); + free( pCurs); + return Success; +} + + +/* + * We check for empty cursors so that we won't have to display them + */ +static void +CheckForEmptyMask(CursorBitsPtr bits) +{ + unsigned char *msk = bits->mask; + int n = BitmapBytePad(bits->width) * bits->height; + + bits->emptyMask = FALSE; + while(n--) + if(*(msk++) != 0) return; +#ifdef ARGB_CURSOR + if (bits->argb) + { + CARD32 *argb = bits->argb; + int n = bits->width * bits->height; + while (n--) + if (*argb++ & 0xff000000) return; + } +#endif + bits->emptyMask = TRUE; +} + +/** + * realize the cursor for every screen. Do not change the refcnt, this will be + * changed when ChangeToCursor actually changes the sprite. + * + * @return Success if all cursors realize on all screens, BadAlloc if realize + * failed for a device on a given screen. + */ +static int +RealizeCursorAllScreens(CursorPtr pCurs) +{ + DeviceIntPtr pDev; + ScreenPtr pscr; + int nscr; + + for (nscr = 0; nscr < screenInfo.numScreens; nscr++) + { + pscr = screenInfo.screens[nscr]; + for (pDev = inputInfo.devices; pDev; pDev = pDev->next) + { + if (DevHasCursor(pDev)) + { + if (!( *pscr->RealizeCursor)(pDev, pscr, pCurs)) + { + /* Realize failed for device pDev on screen pscr. + * We have to assume that for all devices before, realize + * worked. We need to rollback all devices so far on the + * current screen and then all devices on previous + * screens. + */ + DeviceIntPtr pDevIt = inputInfo.devices; /*dev iterator*/ + while(pDevIt && pDevIt != pDev) + { + if (DevHasCursor(pDevIt)) + ( *pscr->UnrealizeCursor)(pDevIt, pscr, pCurs); + pDevIt = pDevIt->next; + } + while (--nscr >= 0) + { + pscr = screenInfo.screens[nscr]; + /* now unrealize all devices on previous screens */ + pDevIt = inputInfo.devices; + while (pDevIt) + { + if (DevHasCursor(pDevIt)) + ( *pscr->UnrealizeCursor)(pDevIt, pscr, pCurs); + pDevIt = pDevIt->next; + } + ( *pscr->UnrealizeCursor)(pDev, pscr, pCurs); + } + return BadAlloc; + } + } + } + } + + return Success; +} + + +/** + * 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; +} + +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; +} + +/** CreateRootCursor + * + * look up the name of a font + * open the font + * add the font to the resource table + * make a cursor from the glyphs + * add the cursor to the resource table + *************************************************************/ + +CursorPtr +CreateRootCursor(char *unused1, unsigned int unused2) +{ + CursorPtr curs; + FontPtr cursorfont; + int err; + XID fontID; + + fontID = FakeClientID(0); + err = OpenFont(serverClient, fontID, FontLoadAll | FontOpenSync, + (unsigned)strlen(defaultCursorFont), defaultCursorFont); + if (err != Success) + return NullCursor; + + err = dixLookupResourceByType((pointer *)&cursorfont, fontID, RT_FONT, + serverClient, DixReadAccess); + if (err != Success) + return NullCursor; + if (AllocGlyphCursor(fontID, 0, fontID, 1, 0, 0, 0, ~0, ~0, ~0, + &curs, serverClient, (XID)0) != Success) + return NullCursor; + + if (!AddResource(FakeClientID(0), RT_CURSOR, (pointer)curs)) + return NullCursor; + + return curs; +} |