Function init_cpu_info

libhb/ports.c:364–505

#endif // ARCH_X86_64 || ARCH_X86_32

static void init_cpu_info()
{
    if (hb_cpu_info.count != 0)
        return;

    hb_cpu_info.name     = "Unknown";
    hb_cpu_info.count    = init_cpu_count();
    hb_cpu_info.platform = HB_CPU_PLATFORM_UNSPECIFIED;

#if ARCH_X86_64 || ARCH_X86_32
    if (av_get_cpu_flags() & AV_CPU_FLAG_SSE)
    {
        int eax, ebx, ecx, edx, family, model;

        cpuid(1, &eax, &ebx, &ecx, &edx);
        family = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);
        model  = ((eax >> 4) & 0xf) + ((eax >> 12) & 0xf0);

        // Intel 64 and IA-32 Architectures Software Developer's Manual, Volume 4/April 2022
        // Table 2-1. CPUID Signature Values of DisplayFamily_DisplayModel
        switch (family)
        {
            case 0x06:
            {
                switch (model)
                {
                    case 0x1C:
                    case 0x26:
                    case 0x27:
                    case 0x35:
                    case 0x36:
                        hb_cpu_info.platform = HB_CPU_PLATFORM_INTEL_BNL;
                        break;
                    case 0x2A:
                    case 0x2D:
                        hb_cpu_info.platform = HB_CPU_PLATFORM_INTEL_SNB;
                        break;
                    case 0x3A:
                    case 0x3E:
                        hb_cpu_info.platform = HB_CPU_PLATFORM_INTEL_IVB;
                        break;
                    case 0x37:
                    case 0x4A:
                    case 0x4D:
                    case 0x5A:
                    case 0x5D:
                        hb_cpu_info.platform = HB_CPU_PLATFORM_INTEL_SLM;
                        break;
                    case 0x3C:
                    case 0x3F:
                    case 0x45:
                    case 0x46:
                        hb_cpu_info.platform = HB_CPU_PLATFORM_INTEL_HSW;
                        break;
                    case 0x3D:
                    case 0x4F:
                    case 0x56:
                        hb_cpu_info.platform = HB_CPU_PLATFORM_INTEL_BDW;