optimizedaway

#include <stdint.h>

// 128 by 64 bit integer division for gcc and clang
inline uint64_t udiv128_64(unsigned __int128 a, uint64_t b)
{
    // We don't want 128 bit software division
    uint64_t alo = (uint64_t)a;
    uint64_t ahi = (a >> 64);
    uint64_t d, e;
    __asm__("divq %[b]"

optimizedaway

/// Build orthonormal frame from normalized dir
/// Hughes and Moeller http://cs.brown.edu/~jfh/papers/Moller-BAO-1999/main.htm
inline float3x3 FrameFromDirHughes(float3 dir)
{
    float3 dx0 = float3(0, dir.z, -dir.y);
    float3 dx1 = float3(-dir.z, 0, dir.x);
    float3 dx = normalize(dot(dx0, dx0) > dot(dx1, dx1) ? dx0 : dx1);
    float3 dy = cross(dir, dx);
    return float3x3(dx, dy, dir);
}

optimizedaway

HRESULT hot_init(hot_ctx **out)
{
    *out = nullptr;
    std::unique_ptr<hot_ctx> ctx(new hot_ctx);
    // Obtain base address of main executable

    // 1. Module info
    //MODULEINFO mod_info;
    //GetModuleInformation(GetCurrentProcess(), hmod, &mod_info, sizeof(mod_info));
    //void *baseaddr = mod_info.lpBaseOfDll;