diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/main/querymatrix.c | 51 | ||||
| -rw-r--r-- | src/util/macros.h | 62 |
2 files changed, 50 insertions, 63 deletions
diff --git a/src/mesa/main/querymatrix.c b/src/mesa/main/querymatrix.c index d2d643be0e4..ef85175714d 100644 --- a/src/mesa/main/querymatrix.c +++ b/src/mesa/main/querymatrix.c @@ -17,7 +17,6 @@ #include "glheader.h" #include "querymatrix.h" #include "main/get.h" -#include "util/macros.h" /** @@ -38,6 +37,56 @@ #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 74bd8bfad88..eec8b9352cc 100644 --- a/src/util/macros.h +++ b/src/util/macros.h @@ -24,8 +24,6 @@ #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))) @@ -158,64 +156,4 @@ do { \ # endif #endif -/* The fallbacks below don't work correctly in C++ and properly detecting - * FP_NORMAL in C++ is hard. Since we don't use fpclassify in any C++ code - * at the moment, we can just predicate this whole thing by not being in - * C++ and we shoudld be ok. If we ever want to use fpclassify in a C++ - * file, we will have to revisit this. - */ -#ifndef __cplusplus - -#ifdef FP_NORMAL -/* 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 - -static inline enum {FP_NAN, FP_INFINITE, FP_ZERO, FP_SUBNORMAL, FP_NORMAL} -fpclassify(double x) -{ - /* XXX do something better someday */ - return FP_NORMAL; -} - -#endif - -#endif /* __cplusplus */ - #endif /* UTIL_MACROS_H */ |