Mesa (main): include: drop c99_math.h

GitLab Mirror gitlab-mirror at kemper.freedesktop.org
Thu Jun 2 13:50:05 UTC 2022


Module: Mesa
Branch: main
Commit: 18246ed06a1e5d826fae45c5f005926207b6ed3a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=18246ed06a1e5d826fae45c5f005926207b6ed3a

Author: Erik Faye-Lund <erik.faye-lund at collabora.com>
Date:   Wed Jun  1 14:46:46 2022 +0200

include: drop c99_math.h

Since we now depend on C11, we know that we have support for the C99
math functionality. So let's drop the c99_math.h compatibility wrapper,
and just include <math.h> directly.

Reviewed-by: Jesse Natalie <jenatali at microsoft.com>
Reviewed-by: Alyssa Rosenzweig <alyssa at collabora.com>
Reviewed-by: Eric Engestrom <eric at engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16812>

---

 include/c99_math.h                       | 210 -------------------------------
 src/compiler/glsl/lower_instructions.cpp |   3 +-
 src/compiler/nir/nir_lower_double_ops.c  |   2 +-
 src/mesa/main/light.c                    |   2 +-
 src/mesa/main/pixel.c                    |   2 +-
 src/mesa/main/querymatrix.c              |   3 +-
 src/mesa/math/m_debug_norm.c             |   2 +-
 src/mesa/math/m_debug_util.h             |   2 +-
 src/mesa/math/m_matrix.c                 |   2 +-
 src/util/format_rgb9e5.h                 |   3 +-
 src/util/rounding.h                      |   3 +-
 src/util/u_math.h                        |   2 +-
 12 files changed, 13 insertions(+), 223 deletions(-)

diff --git a/include/c99_math.h b/include/c99_math.h
deleted file mode 100644
index 439a27fd61a..00000000000
--- a/include/c99_math.h
+++ /dev/null
@@ -1,210 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2007-2015 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) 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 NON-INFRINGEMENT.
- * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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.
- *
- **************************************************************************/
-
-/**
- * Wrapper for math.h which makes sure we have definitions of all the c99
- * functions.
- */
-
-
-#ifndef _C99_MATH_H_
-#define _C99_MATH_H_
-
-#include <math.h>
-
-
-/* This is to ensure that we get M_PI, etc. definitions */
-#if defined(_MSC_VER) && !defined(_USE_MATH_DEFINES)
-#error _USE_MATH_DEFINES define required when building with MSVC
-#endif 
-
-
-#if !defined(_MSC_VER) && \
-    __STDC_VERSION__ < 199901L && \
-    (!defined(_XOPEN_SOURCE) || _XOPEN_SOURCE < 600) && \
-    !defined(__cplusplus)
-
-static inline long int
-lrint(double d)
-{
-   long int rounded = (long int)(d + 0.5);
-
-   if (d - floor(d) == 0.5) {
-      if (rounded % 2 != 0)
-         rounded += (d > 0) ? -1 : 1;
-   }
-
-   return rounded;
-}
-
-static inline long int
-lrintf(float f)
-{
-   long int rounded = (long int)(f + 0.5f);
-
-   if (f - floorf(f) == 0.5f) {
-      if (rounded % 2 != 0)
-         rounded += (f > 0) ? -1 : 1;
-   }
-
-   return rounded;
-}
-
-static inline long long int
-llrint(double d)
-{
-   long long int rounded = (long long int)(d + 0.5);
-
-   if (d - floor(d) == 0.5) {
-      if (rounded % 2 != 0)
-         rounded += (d > 0) ? -1 : 1;
-   }
-
-   return rounded;
-}
-
-static inline long long int
-llrintf(float f)
-{
-   long long int rounded = (long long int)(f + 0.5f);
-
-   if (f - floorf(f) == 0.5f) {
-      if (rounded % 2 != 0)
-         rounded += (f > 0) ? -1 : 1;
-   }
-
-   return rounded;
-}
-
-static inline float
-exp2f(float f)
-{
-   return powf(2.0f, f);
-}
-
-static inline double
-exp2(double d)
-{
-   return pow(2.0, d);
-}
-
-#endif /* C99 */
-
-
-/*
- * signbit() is a macro on Linux.  Not available on Windows.
- */
-#ifndef signbit
-#define signbit(x) ((x) < 0.0f)
-#endif
-
-
-#ifndef M_PI
-#define M_PI (3.14159265358979323846)
-#endif
-
-#ifndef M_E
-#define M_E (2.7182818284590452354)
-#endif
-
-#ifndef M_LOG2E
-#define M_LOG2E (1.4426950408889634074)
-#endif
-
-#ifndef FLT_MAX_EXP
-#define FLT_MAX_EXP 128
-#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(__cplusplus)
-/* For C++, fpclassify() should be defined in <cmath> */
-#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
-#error "Need to include or define an fpclassify function"
-#endif
-
-
-/* Since C++11, the following functions are part of the std namespace. Their C
- * counteparts should still exist in the global namespace, however cmath
- * undefines those functions, which in glibc 2.23, are defined as macros rather
- * than functions as in glibc 2.22.
- */
-#if __cplusplus >= 201103L && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 23))
-#include <cmath>
-
-using std::fpclassify;
-using std::isfinite;
-using std::isinf;
-using std::isnan;
-using std::isnormal;
-using std::signbit;
-using std::isgreater;
-using std::isgreaterequal;
-using std::isless;
-using std::islessequal;
-using std::islessgreater;
-using std::isunordered;
-#endif
-
-
-#endif /* #define _C99_MATH_H_ */
diff --git a/src/compiler/glsl/lower_instructions.cpp b/src/compiler/glsl/lower_instructions.cpp
index f8527625cea..93d203ed767 100644
--- a/src/compiler/glsl/lower_instructions.cpp
+++ b/src/compiler/glsl/lower_instructions.cpp
@@ -106,7 +106,6 @@
  * Converts double trunc, ceil, floor, round to fract
  */
 
-#include "c99_math.h"
 #include "program/prog_instruction.h" /* for swizzle */
 #include "compiler/glsl_types.h"
 #include "ir.h"
@@ -114,6 +113,8 @@
 #include "ir_optimization.h"
 #include "util/half_float.h"
 
+#include <math.h>
+
 using namespace ir_builder;
 
 namespace {
diff --git a/src/compiler/nir/nir_lower_double_ops.c b/src/compiler/nir/nir_lower_double_ops.c
index ff06ace0008..67633787a49 100644
--- a/src/compiler/nir/nir_lower_double_ops.c
+++ b/src/compiler/nir/nir_lower_double_ops.c
@@ -24,8 +24,8 @@
 
 #include "nir.h"
 #include "nir_builder.h"
-#include "c99_math.h"
 
+#include <math.h>
 #include <float.h>
 
 /*
diff --git a/src/mesa/main/light.c b/src/mesa/main/light.c
index 26a73e0b85e..e556f51265d 100644
--- a/src/mesa/main/light.c
+++ b/src/mesa/main/light.c
@@ -24,7 +24,6 @@
  */
 
 
-#include "c99_math.h"
 #include "glheader.h"
 #include "context.h"
 #include "enums.h"
@@ -35,6 +34,7 @@
 #include "util/bitscan.h"
 #include "api_exec_decl.h"
 
+#include <math.h>
 
 void GLAPIENTRY
 _mesa_ShadeModel( GLenum mode )
diff --git a/src/mesa/main/pixel.c b/src/mesa/main/pixel.c
index 9154e712ecf..155ef9ab4b7 100644
--- a/src/mesa/main/pixel.c
+++ b/src/mesa/main/pixel.c
@@ -28,7 +28,6 @@
  * Pixel transfer functions (glPixelZoom, glPixelMap, glPixelTransfer)
  */
 
-#include "c99_math.h"
 #include "glheader.h"
 #include "bufferobj.h"
 #include "context.h"
@@ -38,6 +37,7 @@
 #include "mtypes.h"
 #include "api_exec_decl.h"
 
+#include <math.h>
 
 /**********************************************************************/
 /*****                    glPixelZoom                             *****/
diff --git a/src/mesa/main/querymatrix.c b/src/mesa/main/querymatrix.c
index 83485f28f43..bbbe158641b 100644
--- a/src/mesa/main/querymatrix.c
+++ b/src/mesa/main/querymatrix.c
@@ -13,7 +13,8 @@
 
 
 #include <stdlib.h>
-#include "c99_math.h"
+#include <math.h>
+
 #include "glheader.h"
 #include "main/get.h"
 #include "util/macros.h"
diff --git a/src/mesa/math/m_debug_norm.c b/src/mesa/math/m_debug_norm.c
index dccbdad4dd6..01eac87e784 100644
--- a/src/mesa/math/m_debug_norm.c
+++ b/src/mesa/math/m_debug_norm.c
@@ -26,7 +26,6 @@
  *    Gareth Hughes
  */
 
-#include "c99_math.h"
 #include "main/glheader.h"
 #include "main/context.h"
 #include "main/macros.h"
@@ -37,6 +36,7 @@
 #include "m_debug.h"
 #include "m_debug_util.h"
 
+#include <math.h>
 
 #ifdef __UNIXOS2__
 /* The linker doesn't like empty files */
diff --git a/src/mesa/math/m_debug_util.h b/src/mesa/math/m_debug_util.h
index 1c65e162e5e..47fe8290306 100644
--- a/src/mesa/math/m_debug_util.h
+++ b/src/mesa/math/m_debug_util.h
@@ -32,7 +32,7 @@
 #ifdef DEBUG_MATH  /* This code only used for debugging */
 
 
-#include "c99_math.h"
+#include <math.h>
 
 
 /* Comment this out to deactivate the cycle counter.
diff --git a/src/mesa/math/m_matrix.c b/src/mesa/math/m_matrix.c
index 62303bc4e7f..892c9221506 100644
--- a/src/mesa/math/m_matrix.c
+++ b/src/mesa/math/m_matrix.c
@@ -34,8 +34,8 @@
  */
 
 #include <stddef.h>
+#include <math.h>
 
-#include "c99_math.h"
 #include "main/errors.h"
 #include "main/glheader.h"
 #include "main/macros.h"
diff --git a/src/util/format_rgb9e5.h b/src/util/format_rgb9e5.h
index 70ad04fdeba..51debd276e0 100644
--- a/src/util/format_rgb9e5.h
+++ b/src/util/format_rgb9e5.h
@@ -29,8 +29,7 @@
 
 #include <assert.h>
 #include <stdint.h>
-
-#include "c99_math.h"
+#include <math.h>
 
 #define RGB9E5_EXPONENT_BITS          5
 #define RGB9E5_MANTISSA_BITS          9
diff --git a/src/util/rounding.h b/src/util/rounding.h
index 5392ad642bf..f79671ba7dd 100644
--- a/src/util/rounding.h
+++ b/src/util/rounding.h
@@ -24,10 +24,9 @@
 #ifndef _ROUNDING_H
 #define _ROUNDING_H
 
-#include "c99_math.h"
-
 #include <limits.h>
 #include <stdint.h>
+#include <math.h>
 
 #if defined(__SSE__) || (defined(_M_IX86_FP) && (_M_IX86_FP >= 1)) || (defined(_M_X64) && !defined(_M_ARM64EC))
 #include <xmmintrin.h>
diff --git a/src/util/u_math.h b/src/util/u_math.h
index 5ceb19010a9..7a1ca9dc1bd 100644
--- a/src/util/u_math.h
+++ b/src/util/u_math.h
@@ -40,10 +40,10 @@
 
 
 #include "c99_compat.h"
-#include "c99_math.h"
 #include <assert.h>
 #include <float.h>
 #include <stdarg.h>
+#include <math.h>
 
 #include "bitscan.h"
 #include "u_endian.h" /* for UTIL_ARCH_BIG_ENDIAN */



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