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#include "../include/Platform.hpp"
#include <cassert>
namespace sibs
{
static int countSetBits(u32 value)
{
int count = 0;
while(value)
{
count += (value & 1U);
value >>= 1U;
}
return count;
}
// Returns -1 if no bit is set
static int getLeastSignificantBitSetPosition(u32 value)
{
for(u32 i = 0; i < sizeof(u32); ++i)
{
if(value & 1U)
return i;
value >>= 1U;
}
return -1;
}
bool containsPlatform(const std::vector<Platform> &platforms, Platform platform)
{
for (Platform vecPlatform : platforms)
{
if(platform & vecPlatform)
return true;
}
return false;
}
const char* asString(Platform platform)
{
switch (platform)
{
case PLATFORM_ANY: return "any";
case PLATFORM_LINUX: return "linux";
case PLATFORM_LINUX32: return "linux32";
case PLATFORM_LINUX64: return "linux64";
case PLATFORM_WIN: return "win";
case PLATFORM_WIN32: return "win32";
case PLATFORM_WIN64: return "win64";
case PLATFORM_MACOS: return "macos";
case PLATFORM_MACOS32: return "macos32";
case PLATFORM_MACOS64: return "macos64";
case PLATFORM_BSD: return "bsd";
case PLATFORM_OPENBSD: return "openbsd";
case PLATFORM_OPENBSD32: return "openbsd32";
case PLATFORM_OPENBSD64: return "openbsd64";
case PLATFORM_HAIKU: return "haiku";
case PLATFORM_HAIKU32: return "haiku32";
case PLATFORM_HAIKU64: return "haiku64";
default: assert(false); return nullptr;
}
}
Platform getPlatformByName(StringView name)
{
auto it = PLATFORM_BY_NAME.find(name);
if(it != PLATFORM_BY_NAME.end())
return it->second;
return PLATFORM_INVALID;
}
bool isSamePlatformFamily(Platform a, Platform b)
{
return a & b;
}
bool isBaseForPlatform(Platform base, Platform platform)
{
return base == PLATFORM_ANY || base == platform || (isSamePlatformFamily(platform, base) && countSetBits(base) < countSetBits(platform));
}
Platform getPlatformGenericType(Platform platform)
{
if(platform == PLATFORM_INVALID || platform == PLATFORM_ANY)
return PLATFORM_INVALID;
return (Platform)(1U << (u32)getLeastSignificantBitSetPosition(platform));
}
}
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