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/* |
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* The ManaPlus Client |
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* Copyright (C) 2013-2019 The ManaPlus Developers |
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* Copyright (C) 2019-2021 Andrei Karas |
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* |
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* This file is part of The ManaPlus Client. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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#include "utils/cpu.h" |
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#include "logger.h" |
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#if (defined(__amd64__) || defined(__i386__)) && defined(__GNUC__) \ |
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&& (GCC_VERSION >= 40800) && !defined(ANDROID) |
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// nothing |
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#elif defined(__linux__) || defined(__linux) |
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#include "utils/foreach.h" |
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#include "utils/stringutils.h" |
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#endif // (defined(__amd64__) || defined(__i386__)) && defined(__GNUC__) |
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// && (GCC_VERSION >= 40800) && !defined(ANDROID) |
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#ifdef USE_SDL2 |
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#include <SDL_cpuinfo.h> |
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#endif // USE_SDL2 |
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#include "debug.h" |
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namespace |
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{ |
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uint32_t mCpuFlags; |
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} // namespace |
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void Cpu::detect() |
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{ |
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#if (defined(__amd64__) || defined(__i386__)) && defined(__GNUC__) \ |
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&& (GCC_VERSION >= 40800) && !defined(ANDROID) |
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__builtin_cpu_init(); |
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✓✗ |
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if (__builtin_cpu_supports ("mmx")) |
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mCpuFlags |= FEATURE_MMX; |
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✓✗ |
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if (__builtin_cpu_supports ("sse")) |
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mCpuFlags |= FEATURE_SSE; |
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✓✗ |
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if (__builtin_cpu_supports ("sse2")) |
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mCpuFlags |= FEATURE_SSE2; |
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✓✗ |
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if (__builtin_cpu_supports ("ssse3")) |
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mCpuFlags |= FEATURE_SSSE3; |
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✓✗ |
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if (__builtin_cpu_supports ("sse4.1")) |
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mCpuFlags |= FEATURE_SSE4; |
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if (__builtin_cpu_supports ("sse4.2")) |
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mCpuFlags |= FEATURE_SSE42; |
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✓✗ |
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if (__builtin_cpu_supports ("avx")) |
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mCpuFlags |= FEATURE_AVX; |
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if (__builtin_cpu_supports ("avx2")) |
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mCpuFlags |= FEATURE_AVX2; |
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printFlags(); |
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#elif defined(__linux__) || defined(__linux) |
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FILE *file = fopen("/proc/cpuinfo", "r"); |
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char buf[1001]; |
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if (file == nullptr) |
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return; |
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while (fgets(buf, 1000, file) != nullptr) |
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{ |
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std::string str = buf; |
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if (findFirst(str, "flags")) |
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{ |
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size_t idx = str.find(':'); |
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if (idx == std::string::npos) |
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continue; |
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str = str.substr(idx + 1); |
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trim(str); |
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StringVect vect; |
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splitToStringVector(vect, str, ' '); |
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FOR_EACH (StringVectCIter, it, vect) |
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{ |
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const std::string &flag = *it; |
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if (flag == "mmx") |
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mCpuFlags |= FEATURE_MMX; |
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else if (flag == "sse") |
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mCpuFlags |= FEATURE_SSE; |
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else if (flag == "sse2") |
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mCpuFlags |= FEATURE_SSE2; |
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else if (flag == "ssse3") |
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mCpuFlags |= FEATURE_SSSE3; |
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else if (flag == "sse4_1") |
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mCpuFlags |= FEATURE_SSE4; |
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else if (flag == "sse4_2") |
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mCpuFlags |= FEATURE_SSE42; |
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else if (flag == "avx") |
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mCpuFlags |= FEATURE_AVX; |
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else if (flag == "avx2") |
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mCpuFlags |= FEATURE_AVX2; |
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} |
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fclose(file); |
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printFlags(); |
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return; |
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} |
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} |
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fclose(file); |
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if (logger != nullptr) |
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logger->log("cpu features was not detected"); |
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#else // OTHER |
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#ifdef USE_SDL2 |
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if (SDL_HasMMX()) |
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mCpuFlags |= FEATURE_MMX; |
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if (SDL_HasSSE()) |
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mCpuFlags |= FEATURE_SSE; |
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if (SDL_HasSSE2()) |
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mCpuFlags |= FEATURE_SSE2; |
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if (SDL_HasSSE3()) |
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mCpuFlags |= FEATURE_SSSE3; |
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if (SDL_HasSSE41()) |
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mCpuFlags |= FEATURE_SSE4; |
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if (SDL_HasSSE42()) |
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mCpuFlags |= FEATURE_SSE42; |
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#if SDL_VERSION_ATLEAST(2, 0, 2) |
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if (SDL_HasAVX()) |
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mCpuFlags |= FEATURE_AVX; |
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#endif // SDL_VERSION_ATLEAST(2, 0, 2) |
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#if SDL_VERSION_ATLEAST(2, 0, 4) |
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if (SDL_HasAVX2()) |
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mCpuFlags |= FEATURE_AVX2; |
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#endif // SDL_VERSION_ATLEAST(2, 0, 4) |
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printFlags(); |
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#else // USE_SDL2 |
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if (logger) |
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logger->log("cpu features not supported"); |
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#endif // USE_SDL2 |
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#endif // (defined(__amd64__) || defined(__i386__)) && defined(__GNUC__) |
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// && (GCC_VERSION >= 40800) && !defined(ANDROID) |
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#if SDL_VERSION_ATLEAST(2, 0, 1) |
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logger->log("System ram size: %d", SDL_GetSystemRAM()); |
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#endif // SDL_VERSION_ATLEAST(2, 0, 1) |
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} |
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void Cpu::printFlags() |
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{ |
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✓✗ |
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if (logger == nullptr) |
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return; |
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std::string str("CPU features:"); |
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✓✗ |
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if ((mCpuFlags & FEATURE_MMX) != 0U) |
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✓✗ |
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str.append(" mmx"); |
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✓✗ |
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if ((mCpuFlags & FEATURE_SSE) != 0U) |
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str.append(" sse"); |
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✓✗ |
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if ((mCpuFlags & FEATURE_SSE2) != 0U) |
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str.append(" sse2"); |
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✓✗ |
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if ((mCpuFlags & FEATURE_SSSE3) != 0U) |
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str.append(" ssse3"); |
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if ((mCpuFlags & FEATURE_SSE4) != 0U) |
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str.append(" sse4"); |
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if ((mCpuFlags & FEATURE_SSE42) != 0U) |
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str.append(" sse4_2"); |
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✓✗ |
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if ((mCpuFlags & FEATURE_AVX) != 0U) |
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✓✗ |
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str.append(" avx"); |
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✓✗ |
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if ((mCpuFlags & FEATURE_AVX2) != 0U) |
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✓✗ |
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str.append(" avx2"); |
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logger->log(str); |
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} |
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uint32_t Cpu::getFlags() |
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{ |
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return mCpuFlags; |
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} |