diff options
| -rw-r--r-- | src/mesa/main/querymatrix.c | 51 | ||||
| -rw-r--r-- | src/util/macros.h | 52 |
2 files changed, 53 insertions, 50 deletions
diff --git a/src/mesa/main/querymatrix.c b/src/mesa/main/querymatrix.c index ef85175714d..d2d643be0e4 100644 --- a/src/mesa/main/querymatrix.c +++ b/src/mesa/main/querymatrix.c @@ -17,6 +17,7 @@ #include "glheader.h" #include "querymatrix.h" #include "main/get.h" +#include "util/macros.h" /** @@ -37,56 +38,6 @@ #define INT_TO_FIXED(x) ((GLfixed) ((x) << 16)) #define FLOAT_TO_FIXED(x) ((GLfixed) ((x) * 65536.0)) -#if defined(fpclassify) -/* ISO C99 says that fpclassify is a macro. Assume that any implementation - * of fpclassify, whether it's in a C99 compiler or not, will be a macro. - */ -#elif defined(_MSC_VER) -/* Not required on VS2013 and above. */ -/* Oddly, the fpclassify() function doesn't exist in such a form - * on MSVC. This is an implementation using slightly different - * lower-level Windows functions. - */ -#include <float.h> - -enum {FP_NAN, FP_INFINITE, FP_ZERO, FP_SUBNORMAL, FP_NORMAL} -fpclassify(double x) -{ - switch(_fpclass(x)) { - case _FPCLASS_SNAN: /* signaling NaN */ - case _FPCLASS_QNAN: /* quiet NaN */ - return FP_NAN; - case _FPCLASS_NINF: /* negative infinity */ - case _FPCLASS_PINF: /* positive infinity */ - return FP_INFINITE; - case _FPCLASS_NN: /* negative normal */ - case _FPCLASS_PN: /* positive normal */ - return FP_NORMAL; - case _FPCLASS_ND: /* negative denormalized */ - case _FPCLASS_PD: /* positive denormalized */ - return FP_SUBNORMAL; - case _FPCLASS_NZ: /* negative zero */ - case _FPCLASS_PZ: /* positive zero */ - return FP_ZERO; - default: - /* Should never get here; but if we do, this will guarantee - * that the pattern is not treated like a number. - */ - return FP_NAN; - } -} - -#else - -enum {FP_NAN, FP_INFINITE, FP_ZERO, FP_SUBNORMAL, FP_NORMAL} -fpclassify(double x) -{ - /* XXX do something better someday */ - return FP_NORMAL; -} - -#endif - GLbitfield GLAPIENTRY _mesa_QueryMatrixxOES(GLfixed mantissa[16], GLint exponent[16]) { GLfloat matrix[16]; diff --git a/src/util/macros.h b/src/util/macros.h index eec8b9352cc..180f2f6436b 100644 --- a/src/util/macros.h +++ b/src/util/macros.h @@ -24,6 +24,8 @@ #ifndef UTIL_MACROS_H #define UTIL_MACROS_H +#include <math.h> + /* Compute the size of an array */ #ifndef ARRAY_SIZE # define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x))) @@ -156,4 +158,54 @@ do { \ # endif #endif +#if defined(fpclassify) +/* ISO C99 says that fpclassify is a macro. Assume that any implementation + * of fpclassify, whether it's in a C99 compiler or not, will be a macro. + */ +#elif defined(_MSC_VER) +/* Not required on VS2013 and above. */ +/* Oddly, the fpclassify() function doesn't exist in such a form + * on MSVC. This is an implementation using slightly different + * lower-level Windows functions. + */ +#include <float.h> + +static inline enum {FP_NAN, FP_INFINITE, FP_ZERO, FP_SUBNORMAL, FP_NORMAL} +fpclassify(double x) +{ + switch(_fpclass(x)) { + case _FPCLASS_SNAN: /* signaling NaN */ + case _FPCLASS_QNAN: /* quiet NaN */ + return FP_NAN; + case _FPCLASS_NINF: /* negative infinity */ + case _FPCLASS_PINF: /* positive infinity */ + return FP_INFINITE; + case _FPCLASS_NN: /* negative normal */ + case _FPCLASS_PN: /* positive normal */ + return FP_NORMAL; + case _FPCLASS_ND: /* negative denormalized */ + case _FPCLASS_PD: /* positive denormalized */ + return FP_SUBNORMAL; + case _FPCLASS_NZ: /* negative zero */ + case _FPCLASS_PZ: /* positive zero */ + return FP_ZERO; + default: + /* Should never get here; but if we do, this will guarantee + * that the pattern is not treated like a number. + */ + return FP_NAN; + } +} + +#else + +enum {FP_NAN, FP_INFINITE, FP_ZERO, FP_SUBNORMAL, FP_NORMAL} +fpclassify(double x) +{ + /* XXX do something better someday */ + return FP_NORMAL; +} + +#endif + #endif /* UTIL_MACROS_H */ |