Make GLX byteswap macros more portable
- Use autoconf tests instead of platform-specific #ifdef's to decide which macros to use. - Provide fallbacks for platforms like Solaris that don't provide any of the existing known forms.
This commit is contained in:
Alan Coopersmith
parent
66fa87292e
commit
2fd4626fa6
|
|
@ -25,21 +25,29 @@
|
|||
* SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_DIX_CONFIG_H
|
||||
#include <dix-config.h>
|
||||
#endif
|
||||
|
||||
#include <X11/Xmd.h>
|
||||
#include <GL/gl.h>
|
||||
#include <GL/glxproto.h>
|
||||
#if defined(__linux__) || defined (__GLIBC__) || defined(__GNU__)
|
||||
#if defined(HAVE_BYTESWAP_H)
|
||||
#include <byteswap.h>
|
||||
#elif defined(__OpenBSD__)
|
||||
#elif defined(USE_SYS_ENDIAN_H)
|
||||
#include <sys/endian.h>
|
||||
#define bswap_16 __swap16
|
||||
#define bswap_32 __swap32
|
||||
#define bswap_64 __swap64
|
||||
#else
|
||||
#include <sys/endian.h>
|
||||
#define bswap_16 bswap16
|
||||
#define bswap_32 bswap32
|
||||
#define bswap_64 bswap64
|
||||
#define bswap_16(value) \
|
||||
((((value) & 0xff) << 8) | ((value) >> 8))
|
||||
|
||||
#define bswap_32(value) \
|
||||
(((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \
|
||||
(uint32_t)bswap_16((uint16_t)((value) >> 16)))
|
||||
|
||||
#define bswap_64(value) \
|
||||
(((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) \
|
||||
<< 32) | \
|
||||
(uint64_t)bswap_32((uint32_t)((value) >> 32)))
|
||||
#endif
|
||||
#include <inttypes.h>
|
||||
#include "indirect_size.h"
|
||||
|
|
|
|||
|
|
@ -46,18 +46,22 @@
|
|||
#include "dispatch.h"
|
||||
#include "glapioffsets.h"
|
||||
|
||||
#if defined(__linux__) || defined (__GLIBC__) || defined (__GNU__)
|
||||
#if defined(HAVE_BYTESWAP_H)
|
||||
#include <byteswap.h>
|
||||
#elif defined(__OpenBSD__)
|
||||
#elif defined(USE_SYS_ENDIAN_H)
|
||||
#include <sys/endian.h>
|
||||
#define bswap_16 __swap16
|
||||
#define bswap_32 __swap32
|
||||
#define bswap_64 __swap64
|
||||
#else
|
||||
#include <sys/endian.h>
|
||||
#define bswap_16 bswap16
|
||||
#define bswap_32 bswap32
|
||||
#define bswap_64 bswap64
|
||||
#define bswap_16(value) \
|
||||
((((value) & 0xff) << 8) | ((value) >> 8))
|
||||
|
||||
#define bswap_32(value) \
|
||||
(((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \
|
||||
(uint32_t)bswap_16((uint16_t)((value) >> 16)))
|
||||
|
||||
#define bswap_64(value) \
|
||||
(((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) \
|
||||
<< 32) | \
|
||||
(uint64_t)bswap_32((uint32_t)((value) >> 32)))
|
||||
#endif
|
||||
|
||||
static int DoGetProgramString(struct __GLXclientStateRec *cl, GLbyte *pc,
|
||||
|
|
|
|||
|
|
@ -39,18 +39,22 @@
|
|||
#include "glthread.h"
|
||||
#include "dispatch.h"
|
||||
|
||||
#if defined(__linux__) || defined (__GLIBC__) || defined (__GNU__)
|
||||
#if defined(HAVE_BYTESWAP_H)
|
||||
#include <byteswap.h>
|
||||
#elif defined(__OpenBSD__)
|
||||
#elif defined(USE_SYS_ENDIAN_H)
|
||||
#include <sys/endian.h>
|
||||
#define bswap_16 __swap16
|
||||
#define bswap_32 __swap32
|
||||
#define bswap_64 __swap64
|
||||
#else
|
||||
#include <sys/endian.h>
|
||||
#define bswap_16 bswap16
|
||||
#define bswap_32 bswap32
|
||||
#define bswap_64 bswap64
|
||||
#define bswap_16(value) \
|
||||
((((value) & 0xff) << 8) | ((value) >> 8))
|
||||
|
||||
#define bswap_32(value) \
|
||||
(((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \
|
||||
(uint32_t)bswap_16((uint16_t)((value) >> 16)))
|
||||
|
||||
#define bswap_64(value) \
|
||||
(((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) \
|
||||
<< 32) | \
|
||||
(uint64_t)bswap_32((uint32_t)((value) >> 32)))
|
||||
#endif
|
||||
|
||||
int __glXDisp_GetCompressedTexImageARB(struct __GLXclientStateRec *cl, GLbyte *pc)
|
||||
|
|
|
|||
|
|
@ -23,23 +23,31 @@
|
|||
* SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_DIX_CONFIG_H
|
||||
#include <dix-config.h>
|
||||
#endif
|
||||
|
||||
#include <string.h>
|
||||
|
||||
#include <X11/Xmd.h>
|
||||
#include <GL/gl.h>
|
||||
#include <GL/glxproto.h>
|
||||
#if defined(__linux__) || defined (__GLIBC__) || defined(__GNU__)
|
||||
#if defined(HAVE_BYTESWAP_H)
|
||||
#include <byteswap.h>
|
||||
#elif defined(__OpenBSD__)
|
||||
#elif defined(USE_SYS_ENDIAN_H)
|
||||
#include <sys/endian.h>
|
||||
#define bswap_16 __swap16
|
||||
#define bswap_32 __swap32
|
||||
#define bswap_64 __swap64
|
||||
#else
|
||||
#include <sys/endian.h>
|
||||
#define bswap_16 bswap16
|
||||
#define bswap_32 bswap32
|
||||
#define bswap_64 bswap64
|
||||
#define bswap_16(value) \
|
||||
((((value) & 0xff) << 8) | ((value) >> 8))
|
||||
|
||||
#define bswap_32(value) \
|
||||
(((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \
|
||||
(uint32_t)bswap_16((uint16_t)((value) >> 16)))
|
||||
|
||||
#define bswap_64(value) \
|
||||
(((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) \
|
||||
<< 32) | \
|
||||
(uint64_t)bswap_32((uint32_t)((value) >> 32)))
|
||||
#endif
|
||||
#include <inttypes.h>
|
||||
#include "indirect_size.h"
|
||||
|
|
|
|||
|
|
@ -40,18 +40,22 @@
|
|||
#include "dispatch.h"
|
||||
#include "glapioffsets.h"
|
||||
|
||||
#if defined(__linux__) || defined (__GLIBC__) || defined (__GNU__)
|
||||
#if defined(HAVE_BYTESWAP_H)
|
||||
#include <byteswap.h>
|
||||
#elif defined(__OpenBSD__)
|
||||
#elif defined(USE_SYS_ENDIAN_H)
|
||||
#include <sys/endian.h>
|
||||
#define bswap_16 __swap16
|
||||
#define bswap_32 __swap32
|
||||
#define bswap_64 __swap64
|
||||
#else
|
||||
#include <sys/endian.h>
|
||||
#define bswap_16 bswap16
|
||||
#define bswap_32 bswap32
|
||||
#define bswap_64 bswap64
|
||||
#define bswap_16(value) \
|
||||
((((value) & 0xff) << 8) | ((value) >> 8))
|
||||
|
||||
#define bswap_32(value) \
|
||||
(((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \
|
||||
(uint32_t)bswap_16((uint16_t)((value) >> 16)))
|
||||
|
||||
#define bswap_64(value) \
|
||||
(((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) \
|
||||
<< 32) | \
|
||||
(uint64_t)bswap_32((uint32_t)((value) >> 32)))
|
||||
#endif
|
||||
|
||||
static int DoSwapInterval(__GLXclientState *cl, GLbyte *pc, int do_swap);
|
||||
|
|
|
|||
58
configure.ac
58
configure.ac
|
|
@ -99,6 +99,64 @@ fi
|
|||
|
||||
AC_TYPE_PID_T
|
||||
|
||||
# Checks for headers/macros for byte swapping
|
||||
# Known variants:
|
||||
# <byteswap.h> bswap_16, bswap_32, bswap_64 (glibc)
|
||||
# <sys/endian.h> __swap16, __swap32, __swap64 (OpenBSD)
|
||||
# <sys/endian.h> bswap16, bswap32, bswap64 (other BSD's)
|
||||
# and a fallback to local macros if none of the above are found
|
||||
|
||||
# if <byteswap.h> is found, assume it's the correct version
|
||||
AC_CHECK_HEADERS([byteswap.h])
|
||||
|
||||
# if <sys/endian.h> is found, have to check which version
|
||||
AC_CHECK_HEADER([sys/endian.h], [HAVE_SYS_ENDIAN_H="yes"], [HAVE_SYS_ENDIAN_H="no"])
|
||||
|
||||
if test "x$HAVE_SYS_ENDIAN_H" = "xyes" ; then
|
||||
AC_MSG_CHECKING([for __swap16 variant of <sys/endian.h> byteswapping macros])
|
||||
AC_LINK_IFELSE([AC_LANG_PROGRAM([
|
||||
#include <sys/endian.h>
|
||||
], [
|
||||
int a = 1, b;
|
||||
b = __swap16(a);
|
||||
])
|
||||
], [SYS_ENDIAN__SWAP='yes'], [SYS_ENDIAN__SWAP='no'])
|
||||
AC_MSG_RESULT([$SYS_ENDIAN__SWAP])
|
||||
|
||||
AC_MSG_CHECKING([for bswap_16 variant of <sys/endian.h> byteswapping macros])
|
||||
AC_LINK_IFELSE([AC_LANG_PROGRAM([
|
||||
#include <sys/endian.h>
|
||||
], [
|
||||
int a = 1, b;
|
||||
b = bswap_16(a);
|
||||
])
|
||||
], [SYS_ENDIAN_BSWAP='yes'], [SYS_ENDIAN_BSWAP='no'])
|
||||
AC_MSG_RESULT([$SYS_ENDIAN_BSWAP])
|
||||
|
||||
if test "$SYS_ENDIAN_BSWAP" = "yes" ; then
|
||||
USE_SYS_ENDIAN_H=yes
|
||||
BSWAP=bswap_
|
||||
else
|
||||
if test "$SYS_ENDIAN__SWAP" = "yes" ; then
|
||||
USE_SYS_ENDIAN_H=yes
|
||||
BSWAP=__swap
|
||||
else
|
||||
USE_SYS_ENDIAN_H=no
|
||||
fi
|
||||
fi
|
||||
|
||||
if test "$USE_SYS_ENDIAN_H" = "yes" ; then
|
||||
AC_DEFINE([USE_SYS_ENDIAN_H], 1,
|
||||
[Define to use byteswap macros from <sys/endian.h>])
|
||||
AC_DEFINE_UNQUOTED([bswap_16], ${BSWAP}16,
|
||||
[Define to 16-bit byteswap macro])
|
||||
AC_DEFINE_UNQUOTED([bswap_32], ${BSWAP}32,
|
||||
[Define to 32-bit byteswap macro])
|
||||
AC_DEFINE_UNQUOTED([bswap_64], ${BSWAP}64,
|
||||
[Define to 64-bit byteswap macro])
|
||||
fi
|
||||
fi
|
||||
|
||||
dnl Checks for library functions.
|
||||
AC_FUNC_VPRINTF
|
||||
AC_CHECK_FUNCS([geteuid getuid link memmove memset mkstemp strchr strrchr \
|
||||
|
|
|
|||
|
|
@ -93,6 +93,9 @@
|
|||
/* Define to 1 if you have the <asm/mtrr.h> header file. */
|
||||
#undef HAVE_ASM_MTRR_H
|
||||
|
||||
/* Define to 1 if you have the <byteswap.h> header file. */
|
||||
#undef HAVE_BYTESWAP_H
|
||||
|
||||
/* Define to 1 if you have the <dbm.h> header file. */
|
||||
#undef HAVE_DBM_H
|
||||
|
||||
|
|
@ -311,6 +314,9 @@
|
|||
/* Use rgb.txt directly */
|
||||
#undef USE_RGB_TXT
|
||||
|
||||
/* Define to use byteswap macros from <sys/endian.h> */
|
||||
#undef USE_SYS_ENDIAN_H
|
||||
|
||||
/* unaligned word accesses behave as expected */
|
||||
#undef WORKING_UNALIGNED_INT
|
||||
|
||||
|
|
@ -469,4 +475,13 @@
|
|||
/* Path to XErrorDB file */
|
||||
#undef XERRORDB_PATH
|
||||
|
||||
/* Define to 16-bit byteswap macro */
|
||||
#undef bswap_16
|
||||
|
||||
/* Define to 32-bit byteswap macro */
|
||||
#undef bswap_32
|
||||
|
||||
/* Define to 64-bit byteswap macro */
|
||||
#undef bswap_64
|
||||
|
||||
#endif /* _DIX_CONFIG_H_ */
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user