From 3d7f1555865a981b7144becfc58d3f3f34362f5f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20Verschelde?= <rverschelde@gmail.com>
Date: Wed, 9 Mar 2022 21:15:53 +0100
Subject: Remove unused Bullet module and thirdparty code

It has been disabled in `master` since one year (#45852) and our plan
is for Bullet, and possibly other thirdparty physics engines, to be
implemented via GDExtension so that they can be selected by the users
who need them.
---
 thirdparty/bullet/LinearMath/btCpuFeatureUtility.h | 88 ----------------------
 1 file changed, 88 deletions(-)
 delete mode 100644 thirdparty/bullet/LinearMath/btCpuFeatureUtility.h

(limited to 'thirdparty/bullet/LinearMath/btCpuFeatureUtility.h')

diff --git a/thirdparty/bullet/LinearMath/btCpuFeatureUtility.h b/thirdparty/bullet/LinearMath/btCpuFeatureUtility.h
deleted file mode 100644
index 5e4b9a313c..0000000000
--- a/thirdparty/bullet/LinearMath/btCpuFeatureUtility.h
+++ /dev/null
@@ -1,88 +0,0 @@
-
-#ifndef BT_CPU_UTILITY_H
-#define BT_CPU_UTILITY_H
-
-#include "LinearMath/btScalar.h"
-
-#include <string.h>  //memset
-#ifdef USE_SIMD
-#include <emmintrin.h>
-#ifdef BT_ALLOW_SSE4
-#include <intrin.h>
-#endif  //BT_ALLOW_SSE4
-#endif  //USE_SIMD
-
-#if defined BT_USE_NEON
-#define ARM_NEON_GCC_COMPATIBILITY 1
-#include <arm_neon.h>
-#include <sys/types.h>
-#include <sys/sysctl.h>  //for sysctlbyname
-#endif                   //BT_USE_NEON
-
-///Rudimentary btCpuFeatureUtility for CPU features: only report the features that Bullet actually uses (SSE4/FMA3, NEON_HPFP)
-///We assume SSE2 in case BT_USE_SSE2 is defined in LinearMath/btScalar.h
-class btCpuFeatureUtility
-{
-public:
-	enum btCpuFeature
-	{
-		CPU_FEATURE_FMA3 = 1,
-		CPU_FEATURE_SSE4_1 = 2,
-		CPU_FEATURE_NEON_HPFP = 4
-	};
-
-	static int getCpuFeatures()
-	{
-		static int capabilities = 0;
-		static bool testedCapabilities = false;
-		if (0 != testedCapabilities)
-		{
-			return capabilities;
-		}
-
-#ifdef BT_USE_NEON
-		{
-			uint32_t hasFeature = 0;
-			size_t featureSize = sizeof(hasFeature);
-			int err = sysctlbyname("hw.optional.neon_hpfp", &hasFeature, &featureSize, NULL, 0);
-			if (0 == err && hasFeature)
-				capabilities |= CPU_FEATURE_NEON_HPFP;
-		}
-#endif  //BT_USE_NEON
-
-#ifdef BT_ALLOW_SSE4
-		{
-			int cpuInfo[4];
-			memset(cpuInfo, 0, sizeof(cpuInfo));
-			unsigned long long sseExt = 0;
-			__cpuid(cpuInfo, 1);
-
-			bool osUsesXSAVE_XRSTORE = cpuInfo[2] & (1 << 27) || false;
-			bool cpuAVXSuport = cpuInfo[2] & (1 << 28) || false;
-
-			if (osUsesXSAVE_XRSTORE && cpuAVXSuport)
-			{
-				sseExt = _xgetbv(0);
-			}
-			const int OSXSAVEFlag = (1UL << 27);
-			const int AVXFlag = ((1UL << 28) | OSXSAVEFlag);
-			const int FMAFlag = ((1UL << 12) | AVXFlag | OSXSAVEFlag);
-			if ((cpuInfo[2] & FMAFlag) == FMAFlag && (sseExt & 6) == 6)
-			{
-				capabilities |= btCpuFeatureUtility::CPU_FEATURE_FMA3;
-			}
-
-			const int SSE41Flag = (1 << 19);
-			if (cpuInfo[2] & SSE41Flag)
-			{
-				capabilities |= btCpuFeatureUtility::CPU_FEATURE_SSE4_1;
-			}
-		}
-#endif  //BT_ALLOW_SSE4
-
-		testedCapabilities = true;
-		return capabilities;
-	}
-};
-
-#endif  //BT_CPU_UTILITY_H
-- 
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