view release on metacpan or  search on metacpan

share/public_html/static/music_worklet_inprogress/decoder/deps/dr_libs/dr_flac.h  view on Meta::CPAN

        #if defined(_MSC_VER) && !defined(__clang__)
            /* MSVC. */
            #if _MSC_VER >= 1400 && !defined(DRFLAC_NO_SSE2)    /* 2005 */
                #define DRFLAC_SUPPORT_SSE2
            #endif
            #if _MSC_VER >= 1600 && !defined(DRFLAC_NO_SSE41)   /* 2010 */
                #define DRFLAC_SUPPORT_SSE41
            #endif
        #elif defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
            /* Assume GNUC-style. */
            #if defined(__SSE2__) && !defined(DRFLAC_NO_SSE2)
                #define DRFLAC_SUPPORT_SSE2
            #endif
            #if defined(__SSE4_1__) && !defined(DRFLAC_NO_SSE41)
                #define DRFLAC_SUPPORT_SSE41
            #endif
        #endif

        /* If at this point we still haven't determined compiler support for the intrinsics just fall back to __has_include. */
        #if !defined(__GNUC__) && !defined(__clang__) && defined(__has_include)
            #if !defined(DRFLAC_SUPPORT_SSE2) && !defined(DRFLAC_NO_SSE2) && __has_include(<emmintrin.h>)
                #define DRFLAC_SUPPORT_SSE2
            #endif
            #if !defined(DRFLAC_SUPPORT_SSE41) && !defined(DRFLAC_NO_SSE41) && __has_include(<smmintrin.h>)
                #define DRFLAC_SUPPORT_SSE41
            #endif
        #endif

        #if defined(DRFLAC_SUPPORT_SSE41)
            #include <smmintrin.h>
        #elif defined(DRFLAC_SUPPORT_SSE2)
            #include <emmintrin.h>
        #endif
    #endif

    #if defined(DRFLAC_ARM)
        #if !defined(DRFLAC_NO_NEON) && (defined(__ARM_NEON) || defined(__aarch64__) || defined(_M_ARM64))
            #define DRFLAC_SUPPORT_NEON
            #include <arm_neon.h>
        #endif
    #endif
#endif

/* Compile-time CPU feature support. */
#if !defined(DR_FLAC_NO_SIMD) && (defined(DRFLAC_X86) || defined(DRFLAC_X64))
    #if defined(_MSC_VER) && !defined(__clang__)
        #if _MSC_VER >= 1400
            #include <intrin.h>
            static void drflac__cpuid(int info[4], int fid)
            {
                __cpuid(info, fid);
            }
        #else
            #define DRFLAC_NO_CPUID
        #endif
    #else
        #if defined(__GNUC__) || defined(__clang__)
            static void drflac__cpuid(int info[4], int fid)
            {
                /*
                It looks like the -fPIC option uses the ebx register which GCC complains about. We can work around this by just using a different register, the
                specific register of which I'm letting the compiler decide on. The "k" prefix is used to specify a 32-bit register. The {...} syntax is for
                supporting different assembly dialects.

                What's basically happening is that we're saving and restoring the ebx register manually.
                */
                #if defined(DRFLAC_X86) && defined(__PIC__)
                    __asm__ __volatile__ (
                        "xchg{l} {%%}ebx, %k1;"
                        "cpuid;"
                        "xchg{l} {%%}ebx, %k1;"
                        : "=a"(info[0]), "=&r"(info[1]), "=c"(info[2]), "=d"(info[3]) : "a"(fid), "c"(0)
                    );
                #else
                    __asm__ __volatile__ (
                        "cpuid" : "=a"(info[0]), "=b"(info[1]), "=c"(info[2]), "=d"(info[3]) : "a"(fid), "c"(0)
                    );
                #endif
            }
        #else
            #define DRFLAC_NO_CPUID
        #endif
    #endif
#else
    #define DRFLAC_NO_CPUID
#endif

static DRFLAC_INLINE drflac_bool32 drflac_has_sse2(void)
{
#if defined(DRFLAC_SUPPORT_SSE2)
    #if (defined(DRFLAC_X64) || defined(DRFLAC_X86)) && !defined(DRFLAC_NO_SSE2)
        #if defined(DRFLAC_X64)
            return DRFLAC_TRUE;    /* 64-bit targets always support SSE2. */
        #elif (defined(_M_IX86_FP) && _M_IX86_FP == 2) || defined(__SSE2__)
            return DRFLAC_TRUE;    /* If the compiler is allowed to freely generate SSE2 code we can assume support. */
        #else
            #if defined(DRFLAC_NO_CPUID)
                return DRFLAC_FALSE;
            #else
                int info[4];
                drflac__cpuid(info, 1);
                return (info[3] & (1 << 26)) != 0;
            #endif
        #endif
    #else
        return DRFLAC_FALSE;       /* SSE2 is only supported on x86 and x64 architectures. */
    #endif
#else
    return DRFLAC_FALSE;           /* No compiler support. */
#endif
}

static DRFLAC_INLINE drflac_bool32 drflac_has_sse41(void)
{
#if defined(DRFLAC_SUPPORT_SSE41)
    #if (defined(DRFLAC_X64) || defined(DRFLAC_X86)) && !defined(DRFLAC_NO_SSE41)
        #if defined(DRFLAC_X64)
            return DRFLAC_TRUE;    /* 64-bit targets always support SSE4.1. */
        #elif (defined(_M_IX86_FP) && _M_IX86_FP == 2) || defined(__SSE4_1__)
            return DRFLAC_TRUE;    /* If the compiler is allowed to freely generate SSE41 code we can assume support. */
        #else