385 lines
11 KiB
C
385 lines
11 KiB
C
/***********************************************************
|
|
|
|
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 */
|
|
|
|
/* 128 event opcodes for core + extension events, excluding GE */
|
|
#define MAXEVENTS 128
|
|
#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 */
|
|
static inline uint32_t
|
|
lswapl(uint32_t x)
|
|
{
|
|
return ((x & 0xff) << 24) |
|
|
((x & 0xff00) << 8) | ((x & 0xff0000) >> 8) | ((x >> 24) & 0xff);
|
|
}
|
|
|
|
/* byte swap a 16-bit literal */
|
|
static inline uint16_t
|
|
lswaps(uint16_t x)
|
|
{
|
|
return ((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>
|
|
#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))
|
|
|
|
#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 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 _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;
|
|
|
|
/* Don't use this directly, use BUG_WARN or BUG_WARN_MSG instead */
|
|
#define __BUG_WARN_MSG(cond, with_msg, ...) \
|
|
do { if (cond) { \
|
|
ErrorF("BUG: triggered 'if (" #cond ")'\n"); \
|
|
ErrorF("BUG: %s:%d in %s()\n", \
|
|
__FILE__, __LINE__, __func__); \
|
|
if (with_msg) ErrorF(__VA_ARGS__); \
|
|
xorg_backtrace(); \
|
|
} } while(0)
|
|
|
|
#define BUG_WARN_MSG(cond, ...) \
|
|
__BUG_WARN_MSG(cond, 1, __VA_ARGS__)
|
|
|
|
#define BUG_WARN(cond) __BUG_WARN_MSG(cond, 0, NULL)
|
|
|
|
#endif /* MISC_H */
|