diff options
Diffstat (limited to 'xorg-server/include/misc.h')
-rw-r--r-- | xorg-server/include/misc.h | 622 |
1 files changed, 320 insertions, 302 deletions
diff --git a/xorg-server/include/misc.h b/xorg-server/include/misc.h index 42f225b17..bdcc8cc1e 100644 --- a/xorg-server/include/misc.h +++ b/xorg-server/include/misc.h @@ -1,302 +1,320 @@ -/***********************************************************
-
-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.
-
-Copyright 1992, 1993 Data General Corporation;
-Copyright 1992, 1993 OMRON Corporation
-
-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, and that
-neither the name OMRON or DATA GENERAL be used in advertising or publicity
-pertaining to distribution of the software without specific, written prior
-permission of the party whose name is to be used. Neither OMRON or
-DATA GENERAL make any representation about the suitability of this software
-for any purpose. It is provided "as is" without express or implied warranty.
-
-OMRON AND DATA GENERAL EACH DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
-SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
-IN NO EVENT SHALL OMRON OR DATA GENERAL 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.
-
-******************************************************************/
-#ifndef MISC_H
-#define MISC_H 1
-/*
- * X internal definitions
- *
- */
-
-#include <X11/Xosdefs.h>
-#include <X11/Xfuncproto.h>
-#include <X11/Xmd.h>
-#include <X11/X.h>
-#include <X11/Xdefs.h>
-
-#include <stddef.h>
-#include <stdint.h>
-
-#ifndef MAXSCREENS
-#define MAXSCREENS 16
-#endif
-#define MAXCLIENTS 256
-#define MAXEXTENSIONS 128
-#define MAXFORMATS 8
-#define MAXDEVICES 40 /* input devices */
-
-#define EXTENSION_EVENT_BASE 64
-#define EXTENSION_BASE 128
-
-typedef uint32_t ATOM;
-
-#ifndef TRUE
-#define TRUE 1
-#define FALSE 0
-#endif
-
-#ifndef _XTYPEDEF_CALLBACKLISTPTR
-typedef struct _CallbackList *CallbackListPtr; /* also in dix.h */
-#define _XTYPEDEF_CALLBACKLISTPTR
-#endif
-
-typedef struct _xReq *xReqPtr;
-
-#include "os.h" /* for ALLOCATE_LOCAL and DEALLOCATE_LOCAL */
-#include <X11/Xfuncs.h> /* for bcopy, bzero, and bcmp */
-
-#define NullBox ((BoxPtr)0)
-#define MILLI_PER_MIN (1000 * 60)
-#define MILLI_PER_SECOND (1000)
-
- /* this next is used with None and ParentRelative to tell
- PaintWin() what to use to paint the background. Also used
- in the macro IS_VALID_PIXMAP */
-
-#define USE_BACKGROUND_PIXEL 3
-#define USE_BORDER_PIXEL 3
-
-
-/* byte swap a 32-bit literal */
-#define lswapl(x) ((((x) & 0xff) << 24) |\
- (((x) & 0xff00) << 8) |\
- (((x) & 0xff0000) >> 8) |\
- (((x) >> 24) & 0xff))
-
-/* byte swap a short literal */
-#define lswaps(x) ((((x) & 0xff) << 8) | (((x) >> 8) & 0xff))
-
-#undef min
-#undef max
-
-#define min(a, b) (((a) < (b)) ? (a) : (b))
-#define max(a, b) (((a) > (b)) ? (a) : (b))
-/* abs() is a function, not a macro; include the file declaring
- * it in case we haven't done that yet.
- */
-#include <stdlib.h>
-#ifndef Fabs
-#define Fabs(a) ((a) > 0.0 ? (a) : -(a)) /* floating absolute value */
-#endif
-#define sign(x) ((x) < 0 ? -1 : ((x) > 0 ? 1 : 0))
-/* this assumes b > 0 */
-#define modulus(a, b, d) if (((d) = (a) % (b)) < 0) (d) += (b)
-/*
- * return the least significant bit in x which is set
- *
- * This works on 1's complement and 2's complement machines.
- * If you care about the extra instruction on 2's complement
- * machines, change to ((x) & (-(x)))
- */
-#define lowbit(x) ((x) & (~(x) + 1))
-
-/* XXX Not for modules */
-#include <limits.h>
-#if !defined(MAXSHORT) || !defined(MINSHORT) || \
- !defined(MAXINT) || !defined(MININT)
-/*
- * Some implementations #define these through <math.h>, so preclude
- * #include'ing it later.
- */
-
-#include <math.h>
-#undef MAXSHORT
-#define MAXSHORT SHRT_MAX
-#undef MINSHORT
-#define MINSHORT SHRT_MIN
-#undef MAXINT
-#define MAXINT INT_MAX
-#undef MININT
-#define MININT INT_MIN
-
-#include <assert.h>
-#include <ctype.h>
-#include <stdio.h> /* for fopen, etc... */
-
-#endif
-
-#ifndef PATH_MAX
-#include <sys/param.h>
-#ifndef PATH_MAX
-#ifdef MAXPATHLEN
-#define PATH_MAX MAXPATHLEN
-#else
-#define PATH_MAX 1024
-#endif
-#endif
-#endif
-
-/**
- * Calculate the number of bytes needed to hold bits.
- * @param bits The minimum number of bits needed.
- * @return The number of bytes needed to hold bits.
- */
-static inline int
-bits_to_bytes(const int bits) {
- return ((bits + 7) >> 3);
-}
-/**
- * Calculate the number of 4-byte units needed to hold the given number of
- * bytes.
- * @param bytes The minimum number of bytes needed.
- * @return The number of 4-byte units needed to hold bytes.
- */
-static inline int
-bytes_to_int32(const int bytes) {
- return (((bytes) + 3) >> 2);
-}
-
-/**
- * Calculate the number of bytes (in multiples of 4) needed to hold bytes.
- * @param bytes The minimum number of bytes needed.
- * @return The closest multiple of 4 that is equal or higher than bytes.
- */
-static inline int
-pad_to_int32(const int bytes) {
- return (((bytes) + 3) & ~3);
-}
-
-extern char**
-xstrtokenize(const char *str, const char* separators);
-
-/* some macros to help swap requests, replies, and events */
-
-#define LengthRestB(stuff) \
- ((client->req_len << 2) - sizeof(*stuff))
-
-#define LengthRestS(stuff) \
- ((client->req_len << 1) - (sizeof(*stuff) >> 1))
-
-#define LengthRestL(stuff) \
- (client->req_len - (sizeof(*stuff) >> 2))
-
-#define SwapRestS(stuff) \
- SwapShorts((short *)(stuff + 1), LengthRestS(stuff))
-
-#define SwapRestL(stuff) \
- SwapLongs((CARD32 *)(stuff + 1), LengthRestL(stuff))
-
-/* byte swap a 32-bit value */
-#define swapl(x, n) { \
- n = ((char *) (x))[0];\
- ((char *) (x))[0] = ((char *) (x))[3];\
- ((char *) (x))[3] = n;\
- n = ((char *) (x))[1];\
- ((char *) (x))[1] = ((char *) (x))[2];\
- ((char *) (x))[2] = n; }
-
-/* byte swap a short */
-#define swaps(x, n) { \
- n = ((char *) (x))[0];\
- ((char *) (x))[0] = ((char *) (x))[1];\
- ((char *) (x))[1] = n; }
-
-/* copy 32-bit value from src to dst byteswapping on the way */
-#define cpswapl(src, dst) { \
- ((char *)&(dst))[0] = ((char *) &(src))[3];\
- ((char *)&(dst))[1] = ((char *) &(src))[2];\
- ((char *)&(dst))[2] = ((char *) &(src))[1];\
- ((char *)&(dst))[3] = ((char *) &(src))[0]; }
-
-/* copy short from src to dst byteswapping on the way */
-#define cpswaps(src, dst) { \
- ((char *) &(dst))[0] = ((char *) &(src))[1];\
- ((char *) &(dst))[1] = ((char *) &(src))[0]; }
-
-extern _X_EXPORT void SwapLongs(
- CARD32 *list,
- unsigned long count);
-
-extern _X_EXPORT void SwapShorts(
- short *list,
- unsigned long count);
-
-extern _X_EXPORT void MakePredeclaredAtoms(void);
-
-extern _X_EXPORT int Ones(
- unsigned long /*mask*/);
-
-typedef struct _xPoint *DDXPointPtr;
-typedef struct pixman_box16 *BoxPtr;
-typedef struct _xEvent *xEventPtr;
-typedef struct _xRectangle *xRectanglePtr;
-typedef struct _GrabRec *GrabPtr;
-
-/* typedefs from other places - duplicated here to minimize the amount
- * of unnecessary junk that one would normally have to include to get
- * these symbols defined
- */
-
-#ifndef _XTYPEDEF_CHARINFOPTR
-typedef struct _CharInfo *CharInfoPtr; /* also in fonts/include/font.h */
-#define _XTYPEDEF_CHARINFOPTR
-#endif
-
-extern _X_EXPORT unsigned long globalSerialNumber;
-extern _X_EXPORT unsigned long serverGeneration;
-
-#endif /* MISC_H */
+/*********************************************************** + +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. + +Copyright 1992, 1993 Data General Corporation; +Copyright 1992, 1993 OMRON Corporation + +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, and that +neither the name OMRON or DATA GENERAL be used in advertising or publicity +pertaining to distribution of the software without specific, written prior +permission of the party whose name is to be used. Neither OMRON or +DATA GENERAL make any representation about the suitability of this software +for any purpose. It is provided "as is" without express or implied warranty. + +OMRON AND DATA GENERAL EACH DISCLAIM ALL WARRANTIES WITH REGARD TO THIS +SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, +IN NO EVENT SHALL OMRON OR DATA GENERAL 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. + +******************************************************************/ +#ifndef MISC_H +#define MISC_H 1 +/* + * X internal definitions + * + */ + +#include <X11/Xosdefs.h> +#include <X11/Xfuncproto.h> +#include <X11/Xmd.h> +#include <X11/X.h> +#include <X11/Xdefs.h> + +#include <stddef.h> +#include <stdint.h> + +#ifndef MAXSCREENS +#define MAXSCREENS 16 +#endif +#define MAXCLIENTS 256 +#define MAXEXTENSIONS 128 +#define MAXFORMATS 8 +#define MAXDEVICES 40 /* input devices */ + +#define EXTENSION_EVENT_BASE 64 +#define EXTENSION_BASE 128 + +typedef uint32_t ATOM; + +#ifndef TRUE +#define TRUE 1 +#define FALSE 0 +#endif + +#ifndef _XTYPEDEF_CALLBACKLISTPTR +typedef struct _CallbackList *CallbackListPtr; /* also in dix.h */ +#define _XTYPEDEF_CALLBACKLISTPTR +#endif + +typedef struct _xReq *xReqPtr; + +#include "os.h" /* for ALLOCATE_LOCAL and DEALLOCATE_LOCAL */ +#include <X11/Xfuncs.h> /* for bcopy, bzero, and bcmp */ + +#define NullBox ((BoxPtr)0) +#define MILLI_PER_MIN (1000 * 60) +#define MILLI_PER_SECOND (1000) + + /* this next is used with None and ParentRelative to tell + PaintWin() what to use to paint the background. Also used + in the macro IS_VALID_PIXMAP */ + +#define USE_BACKGROUND_PIXEL 3 +#define USE_BORDER_PIXEL 3 + + +/* byte swap a 32-bit literal */ +#define lswapl(x) ((((x) & 0xff) << 24) |\ + (((x) & 0xff00) << 8) |\ + (((x) & 0xff0000) >> 8) |\ + (((x) >> 24) & 0xff)) + +/* byte swap a short literal */ +#define lswaps(x) ((((x) & 0xff) << 8) | (((x) >> 8) & 0xff)) + +#undef min +#undef max + +#define min(a, b) (((a) < (b)) ? (a) : (b)) +#define max(a, b) (((a) > (b)) ? (a) : (b)) +/* abs() is a function, not a macro; include the file declaring + * it in case we haven't done that yet. + */ +#include <stdlib.h> +#ifndef Fabs +#define Fabs(a) ((a) > 0.0 ? (a) : -(a)) /* floating absolute value */ +#endif +#define sign(x) ((x) < 0 ? -1 : ((x) > 0 ? 1 : 0)) +/* this assumes b > 0 */ +#define modulus(a, b, d) if (((d) = (a) % (b)) < 0) (d) += (b) +/* + * return the least significant bit in x which is set + * + * This works on 1's complement and 2's complement machines. + * If you care about the extra instruction on 2's complement + * machines, change to ((x) & (-(x))) + */ +#define lowbit(x) ((x) & (~(x) + 1)) + +/* XXX Not for modules */ +#include <limits.h> +#if !defined(MAXSHORT) || !defined(MINSHORT) || \ + !defined(MAXINT) || !defined(MININT) +/* + * Some implementations #define these through <math.h>, so preclude + * #include'ing it later. + */ + +#include <math.h> +#undef MAXSHORT +#define MAXSHORT SHRT_MAX +#undef MINSHORT +#define MINSHORT SHRT_MIN +#undef MAXINT +#define MAXINT INT_MAX +#undef MININT +#define MININT INT_MIN + +#include <assert.h> +#include <ctype.h> +#include <stdio.h> /* for fopen, etc... */ + +#endif + +#ifndef PATH_MAX +#include <sys/param.h> +#ifndef PATH_MAX +#ifdef MAXPATHLEN +#define PATH_MAX MAXPATHLEN +#else +#define PATH_MAX 1024 +#endif +#endif +#endif + +/** + * Calculate the number of bytes needed to hold bits. + * @param bits The minimum number of bits needed. + * @return The number of bytes needed to hold bits. + */ +static inline int +bits_to_bytes(const int bits) { + return ((bits + 7) >> 3); +} +/** + * Calculate the number of 4-byte units needed to hold the given number of + * bytes. + * @param bytes The minimum number of bytes needed. + * @return The number of 4-byte units needed to hold bytes. + */ +static inline int +bytes_to_int32(const int bytes) { + return (((bytes) + 3) >> 2); +} + +/** + * Calculate the number of bytes (in multiples of 4) needed to hold bytes. + * @param bytes The minimum number of bytes needed. + * @return The closest multiple of 4 that is equal or higher than bytes. + */ +static inline int +pad_to_int32(const int bytes) { + return (((bytes) + 3) & ~3); +} + +extern char** +xstrtokenize(const char *str, const char* separators); + +/** + * Compare the two version numbers comprising of major.minor. + * + * @return A value less than 0 if a is less than b, 0 if a is equal to b, + * or a value greater than 0 + */ +static inline int +version_compare(uint16_t a_major, uint16_t a_minor, + uint16_t b_major, uint16_t b_minor) +{ + int a, b; + + a = a_major << 16 | a_minor; + b = b_major << 16 | b_minor; + + return (a - b); +} + +/* some macros to help swap requests, replies, and events */ + +#define LengthRestB(stuff) \ + ((client->req_len << 2) - sizeof(*stuff)) + +#define LengthRestS(stuff) \ + ((client->req_len << 1) - (sizeof(*stuff) >> 1)) + +#define LengthRestL(stuff) \ + (client->req_len - (sizeof(*stuff) >> 2)) + +#define SwapRestS(stuff) \ + SwapShorts((short *)(stuff + 1), LengthRestS(stuff)) + +#define SwapRestL(stuff) \ + SwapLongs((CARD32 *)(stuff + 1), LengthRestL(stuff)) + +/* byte swap a 32-bit value */ +#define swapl(x, n) { \ + n = ((char *) (x))[0];\ + ((char *) (x))[0] = ((char *) (x))[3];\ + ((char *) (x))[3] = n;\ + n = ((char *) (x))[1];\ + ((char *) (x))[1] = ((char *) (x))[2];\ + ((char *) (x))[2] = n; } + +/* byte swap a short */ +#define swaps(x, n) { \ + n = ((char *) (x))[0];\ + ((char *) (x))[0] = ((char *) (x))[1];\ + ((char *) (x))[1] = n; } + +/* copy 32-bit value from src to dst byteswapping on the way */ +#define cpswapl(src, dst) { \ + ((char *)&(dst))[0] = ((char *) &(src))[3];\ + ((char *)&(dst))[1] = ((char *) &(src))[2];\ + ((char *)&(dst))[2] = ((char *) &(src))[1];\ + ((char *)&(dst))[3] = ((char *) &(src))[0]; } + +/* copy short from src to dst byteswapping on the way */ +#define cpswaps(src, dst) { \ + ((char *) &(dst))[0] = ((char *) &(src))[1];\ + ((char *) &(dst))[1] = ((char *) &(src))[0]; } + +extern _X_EXPORT void SwapLongs( + CARD32 *list, + unsigned long count); + +extern _X_EXPORT void SwapShorts( + short *list, + unsigned long count); + +extern _X_EXPORT void MakePredeclaredAtoms(void); + +extern _X_EXPORT int Ones( + unsigned long /*mask*/); + +typedef struct _xPoint *DDXPointPtr; +typedef struct pixman_box16 *BoxPtr; +typedef struct _xEvent *xEventPtr; +typedef struct _xRectangle *xRectanglePtr; +typedef struct _GrabRec *GrabPtr; + +/* typedefs from other places - duplicated here to minimize the amount + * of unnecessary junk that one would normally have to include to get + * these symbols defined + */ + +#ifndef _XTYPEDEF_CHARINFOPTR +typedef struct _CharInfo *CharInfoPtr; /* also in fonts/include/font.h */ +#define _XTYPEDEF_CHARINFOPTR +#endif + +extern _X_EXPORT unsigned long globalSerialNumber; +extern _X_EXPORT unsigned long serverGeneration; + +#endif /* MISC_H */ |