From c38dead3ea7e177728d90cd815cf4eead0c9f534 Mon Sep 17 00:00:00 2001 From: marha Date: Sat, 15 May 2010 16:28:11 +0000 Subject: xserver git update 15/5/2010 --- xorg-server/dix/cursor.c | 1024 +++++++++++++++++++++++----------------------- 1 file changed, 512 insertions(+), 512 deletions(-) (limited to 'xorg-server/dix/cursor.c') diff --git a/xorg-server/dix/cursor.c b/xorg-server/dix/cursor.c index 5d9c8b080..01d08bd6e 100644 --- a/xorg-server/dix/cursor.c +++ b/xorg-server/dix/cursor.c @@ -1,512 +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 -#endif - -#include -#include -#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; - -#ifdef XFIXES -static CARD32 cursorSerial; -#endif - -static void -FreeCursorBits(CursorBitsPtr bits) -{ - if (--bits->refcnt > 0) - return; - xfree(bits->source); - xfree(bits->mask); -#ifdef ARGB_CURSOR - xfree(bits->argb); -#endif - dixFreePrivates(bits->devPrivates); - bits->devPrivates = NULL; - 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); - xfree(this); - } - xfree(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); - } - dixFreePrivates(pCurs->devPrivates); - FreeCursorBits(pCurs->bits); - xfree( 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)xcalloc(sizeof(CursorRec) + sizeof(CursorBits), 1); - if (!pCurs) - { - xfree(psrcbits); - xfree(pmaskbits); - return BadAlloc; - } - bits = (CursorBitsPtr)((char *)pCurs + sizeof(CursorRec)); - 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->devPrivates = NULL; - 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; - pCurs->devPrivates = NULL; - - /* 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: - dixFreePrivates(pCurs->devPrivates); - FreeCursorBits(bits); - xfree(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 == BadValue) ? BadFont : rc; - } - rc = dixLookupResourceByType((pointer *)&maskfont, mask, RT_FONT, client, - DixUseAccess); - if (rc != Success && mask != None) - { - client->errorValue = mask; - return (rc == BadValue) ? BadFont : 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)xcalloc(sizeof(CursorRec), 1); - if (!pCurs) - return BadAlloc; - 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 = xalloc(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))) - { - xfree(mskbits); - return rc; - } - if (sourcefont != maskfont) - { - pCurs = - (CursorPtr)xcalloc(sizeof(CursorRec) + sizeof(CursorBits), 1); - if (pCurs) - bits = (CursorBitsPtr)((char *)pCurs + sizeof(CursorRec)); - else - bits = (CursorBitsPtr)NULL; - } - else - { - pCurs = (CursorPtr)xcalloc(sizeof(CursorRec), 1); - if (pCurs) - bits = (CursorBitsPtr)xcalloc(sizeof(CursorBits), 1); - else - bits = (CursorBitsPtr)NULL; - } - if (!bits) - { - xfree(pCurs); - xfree(mskbits); - xfree(srcbits); - return BadAlloc; - } - 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; - bits->devPrivates = NULL; - if (sourcefont != maskfont) - bits->refcnt = -1; - else - { - bits->refcnt = 1; - pShare = xalloc(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; - pCurs->devPrivates = NULL; - - /* 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: - dixFreePrivates(pCurs->devPrivates); - FreeCursorBits(bits); - xfree(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 +#endif + +#include +#include +#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; + +#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 + dixFreePrivates(bits->devPrivates); + bits->devPrivates = NULL; + 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); + } + dixFreePrivates(pCurs->devPrivates); + FreeCursorBits(pCurs->bits); + 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(sizeof(CursorRec) + sizeof(CursorBits), 1); + if (!pCurs) + { + free(psrcbits); + free(pmaskbits); + return BadAlloc; + } + bits = (CursorBitsPtr)((char *)pCurs + sizeof(CursorRec)); + 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->devPrivates = NULL; + 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; + pCurs->devPrivates = NULL; + + /* 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: + dixFreePrivates(pCurs->devPrivates); + FreeCursorBits(bits); + 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 == BadValue) ? BadFont : rc; + } + rc = dixLookupResourceByType((pointer *)&maskfont, mask, RT_FONT, client, + DixUseAccess); + if (rc != Success && mask != None) + { + client->errorValue = mask; + return (rc == BadValue) ? BadFont : 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(sizeof(CursorRec), 1); + if (!pCurs) + return BadAlloc; + 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(sizeof(CursorRec) + sizeof(CursorBits), 1); + if (pCurs) + bits = (CursorBitsPtr)((char *)pCurs + sizeof(CursorRec)); + else + bits = (CursorBitsPtr)NULL; + } + else + { + pCurs = (CursorPtr)calloc(sizeof(CursorRec), 1); + if (pCurs) + bits = (CursorBitsPtr)calloc(sizeof(CursorBits), 1); + else + bits = (CursorBitsPtr)NULL; + } + if (!bits) + { + free(pCurs); + free(mskbits); + free(srcbits); + return BadAlloc; + } + 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; + bits->devPrivates = NULL; + 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; + pCurs->devPrivates = NULL; + + /* 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: + dixFreePrivates(pCurs->devPrivates); + FreeCursorBits(bits); + 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; +} -- cgit v1.2.3