basis_universal: Update to upstream commit from Apr 16, 2021

BinomialLLC/basis_universal@ba1c3e40f1d434ebaf9a167b44e9b11d2bf0f765.

1 files changed, 161 insertions, 0 deletions

diff --git a/thirdparty/basis_universal/encoder/basisu_kernels_sse.cpp b/thirdparty/basis_universal/encoder/basisu_kernels_sse.cpp
new file mode 100644
index 0000000000..12d2321f20
--- /dev/null
+++ b/thirdparty/basis_universal/encoder/basisu_kernels_sse.cpp
@@ -0,0 +1,161 @@
+// basisu_kernels_sse.cpp
+// Copyright (C) 2019-2021 Binomial LLC. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+#include "basisu_enc.h"
+
+#if BASISU_SUPPORT_SSE
+
+#define CPPSPMD_SSE2 0
+
+#ifdef _MSC_VER
+#include <intrin.h>
+#endif
+
+#if !defined(_MSC_VER)
+	#if __AVX__ || __AVX2__ || __AVX512F__
+		#error Please check your compiler options
+	#endif
+	
+	#if CPPSPMD_SSE2
+		#if __SSE4_1__ || __SSE3__ || __SSE4_2__ || __SSSE3__
+			#error SSE4.1/SSE3/SSE4.2/SSSE3 cannot be enabled to use this file
+		#endif
+	#else
+		#if !__SSE4_1__ || !__SSE3__ || __SSE4_2__ || !__SSSE3__
+			#error Please check your compiler options
+		#endif
+	#endif
+#endif
+
+#include "cppspmd_sse.h"
+
+#include "cppspmd_type_aliases.h"
+
+using namespace basisu;
+
+#include "basisu_kernels_declares.h"
+#include "basisu_kernels_imp.h"
+
+namespace basisu
+{
+
+struct cpu_info
+{
+	cpu_info() { memset(this, 0, sizeof(*this)); }
+
+	bool m_has_fpu;
+	bool m_has_mmx;
+	bool m_has_sse;
+	bool m_has_sse2;
+	bool m_has_sse3;
+	bool m_has_ssse3;
+	bool m_has_sse41;
+	bool m_has_sse42;
+	bool m_has_avx;
+	bool m_has_avx2;
+	bool m_has_pclmulqdq;
+};
+
+static void extract_x86_flags(cpu_info &info, uint32_t ecx, uint32_t edx)
+{
+	info.m_has_fpu = (edx & (1 << 0)) != 0;
+	info.m_has_mmx = (edx & (1 << 23)) != 0;
+	info.m_has_sse = (edx & (1 << 25)) != 0;
+	info.m_has_sse2 = (edx & (1 << 26)) != 0;
+	info.m_has_sse3 = (ecx & (1 << 0)) != 0;
+	info.m_has_ssse3 = (ecx & (1 << 9)) != 0;
+	info.m_has_sse41 = (ecx & (1 << 19)) != 0;
+	info.m_has_sse42 = (ecx & (1 << 20)) != 0;
+	info.m_has_pclmulqdq = (ecx & (1 << 1)) != 0;
+	info.m_has_avx = (ecx & (1 << 28)) != 0;
+}
+
+static void extract_x86_extended_flags(cpu_info &info, uint32_t ebx)
+{
+	info.m_has_avx2 = (ebx & (1 << 5)) != 0;
+}
+
+#ifndef _MSC_VER
+static void do_cpuid(uint32_t eax, uint32_t ecx, uint32_t* regs)
+{
+	uint32_t ebx = 0, edx = 0;
+
+#if defined(__PIC__) && defined(__i386__)
+	__asm__("movl %%ebx, %%edi;"
+		"cpuid;"
+		"xchgl %%ebx, %%edi;"
+		: "=D"(ebx), "+a"(eax), "+c"(ecx), "=d"(edx));
+#else
+	__asm__("cpuid;" : "+b"(ebx), "+a"(eax), "+c"(ecx), "=d"(edx));
+#endif
+
+	regs[0] = eax; regs[1] = ebx; regs[2] = ecx; regs[3] = edx;
+}
+#endif
+
+static void get_cpuinfo(cpu_info &info)
+{
+	int regs[4];
+
+#ifdef _MSC_VER
+	__cpuid(regs, 0);
+#else
+	do_cpuid(0, 0, (uint32_t *)regs);
+#endif
+
+	const uint32_t max_eax = regs[0];
+
+	if (max_eax >= 1U)
+	{
+#ifdef _MSC_VER
+		__cpuid(regs, 1);
+#else
+		do_cpuid(1, 0, (uint32_t*)regs);
+#endif
+		extract_x86_flags(info, regs[2], regs[3]);
+	}
+
+	if (max_eax >= 7U)
+	{
+#ifdef _MSC_VER
+		__cpuidex(regs, 7, 0);
+#else
+		do_cpuid(7, 0, (uint32_t*)regs);
+#endif
+
+		extract_x86_extended_flags(info, regs[1]);
+	}
+}
+
+void detect_sse41()
+{
+	cpu_info info;
+	get_cpuinfo(info);
+
+	// Check for everything from SSE to SSE 4.1
+	g_cpu_supports_sse41 = info.m_has_sse && info.m_has_sse2 && info.m_has_sse3 && info.m_has_ssse3 && info.m_has_sse41;
+}
+
+} // namespace basisu
+#else // #if BASISU_SUPPORT_SSE
+namespace basisu
+{
+
+void detect_sse41()
+{
+}
+
+} // namespace basisu
+#endif // #if BASISU_SUPPORT_SSE
+