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Diffstat (limited to 'nx-X11/programs/Xserver/include/misc.h')
| -rw-r--r-- | nx-X11/programs/Xserver/include/misc.h | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/include/misc.h b/nx-X11/programs/Xserver/include/misc.h new file mode 100644 index 000000000..27137cd50 --- /dev/null +++ b/nx-X11/programs/Xserver/include/misc.h @@ -0,0 +1,400 @@ +/*********************************************************** + +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 + * + */ + +extern unsigned long globalSerialNumber; +extern unsigned long serverGeneration; + +#include <nx-X11/Xosdefs.h> +#include <nx-X11/Xfuncproto.h> +#include <nx-X11/Xmd.h> +#include <nx-X11/X.h> +#include <stdint.h> + +#ifndef _XTYPEDEF_POINTER +/* Don't let Xdefs.h define 'pointer' */ +#define _XTYPEDEF_POINTER 1 +#endif /* _XTYPEDEF_POINTER */ + +/* FIXME: for building this code against Xlib versions older than apprx. 04/2014 + * we still have to define the pointer type via Xdefs.h. + * + * The nx-libs code itself does not require the pointer definition. + * + */ +#undef _XTYPEDEF_POINTER + +#include <nx-X11/Xdefs.h> + +#ifndef NULL +#include <stddef.h> +#endif + +#ifndef MAXSCREENS +#define MAXSCREENS 16 +#endif +#define MAXCLIENTS 256 +#define MAXDITS 1 +#define MAXEXTENSIONS 128 +#define MAXFORMATS 8 +#define MAXVISUALS_PER_SCREEN 50 + +typedef unsigned long PIXEL; +typedef unsigned long 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 <nx-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> +#endif +#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... */ + +/** + * 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); +} + +/** + * 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(uint32_t a_major, uint32_t a_minor, + uint32_t b_major, uint32_t b_minor) +{ + if (a_major > b_major) + return 1; + if (a_major < b_major) + return -1; + if (a_minor > b_minor) + return 1; + if (a_minor < b_minor) + return -1; + + return 0; +} + +/* 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)) + +#if defined(__GNUC__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) +void __attribute__ ((error("wrong sized variable passed to swap"))) +wrong_size(void); +#else +static inline void +wrong_size(void) +{ +} +#endif + +#if !(defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))) +static inline int +__builtin_constant_p(int x) +{ + return 0; +} +#endif + +/* byte swap a 64-bit value */ +static inline void +swap_uint64(uint64_t *x) +{ + char n; + + n = ((char *) x)[0]; + ((char *) x)[0] = ((char *) x)[7]; + ((char *) x)[7] = n; + + n = ((char *) x)[1]; + ((char *) x)[1] = ((char *) x)[6]; + ((char *) x)[6] = n; + + n = ((char *) x)[2]; + ((char *) x)[2] = ((char *) x)[5]; + ((char *) x)[5] = n; + + n = ((char *) x)[3]; + ((char *) x)[3] = ((char *) x)[4]; + ((char *) x)[4] = n; +} + +#define swapll(x) do { \ + if (sizeof(*(x)) != 8) \ + wrong_size(); \ + swap_uint64((uint64_t *)(x)); \ + } while (0) + +/* byte swap a 32-bit value */ +static inline void +swap_uint32(uint32_t * x) +{ + char 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; +} + +#define swapl(x) do { \ + if (sizeof(*(x)) != 4) \ + wrong_size(); \ + if (__builtin_constant_p((uintptr_t)(x) & 3) && ((uintptr_t)(x) & 3) == 0) \ + *(x) = lswapl(*(x)); \ + else \ + swap_uint32((uint32_t *)(x)); \ + } while (0) + +/* byte swap a 16-bit value */ +static inline void +swap_uint16(uint16_t * x) +{ + char n = ((char *) x)[0]; + + ((char *) x)[0] = ((char *) x)[1]; + ((char *) x)[1] = n; +} + +#define swaps(x) do { \ + if (sizeof(*(x)) != 2) \ + wrong_size(); \ + if (__builtin_constant_p((uintptr_t)(x) & 1) && ((uintptr_t)(x) & 1) == 0) \ + *(x) = lswaps(*(x)); \ + else \ + swap_uint16((uint16_t *)(x)); \ + } while (0) + +/* copy 32-bit value from src to dst byteswapping on the way */ +#define cpswapl(src, dst) do { \ + if (sizeof((src)) != 4 || sizeof((dst)) != 4) \ + wrong_size(); \ + (dst) = lswapl((src)); \ + } while (0) + +/* copy short from src to dst byteswapping on the way */ +#define cpswaps(src, dst) do { \ + if (sizeof((src)) != 2 || sizeof((dst)) != 2) \ + wrong_size(); \ + (dst) = lswaps((src)); \ + } while (0) + +extern void SwapLongs( + CARD32 *list, + unsigned long count); + +extern void SwapShorts( + short *list, + unsigned long count); + +extern void MakePredeclaredAtoms(void); + +extern 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 + +#endif /* MISC_H */ |