metaforce/hecl-gui/FindBlender.cpp

134 lines
3.4 KiB
C++

#include "FindBlender.hpp"
#include "hecl/SteamFinder.hpp"
#include "hecl/hecl.hpp"
namespace hecl::blender
{
#ifdef __APPLE__
#define DEFAULT_BLENDER_BIN "/Applications/Blender.app/Contents/MacOS/blender"
#elif __linux__
#define DEFAULT_BLENDER_BIN "/usr/bin/blender"
#else
#define DEFAULT_BLENDER_BIN "blender"
#endif
static const std::regex regBlenderVersion(R"(Blender ([0-9]+).([0-9]+) )",
std::regex::ECMAScript|std::regex::optimize);
static bool RegFileExists(const hecl::SystemChar* path)
{
if (!path)
return false;
hecl::Sstat theStat;
return !hecl::Stat(path, &theStat) && S_ISREG(theStat.st_mode);
}
hecl::SystemString FindBlender(int& major, int& minor)
{
major = 0;
minor = 0;
/* User-specified blender path */
#if _WIN32
wchar_t BLENDER_BIN_BUF[2048];
const wchar_t* blenderBin = _wgetenv(L"BLENDER_BIN");
#else
const char* blenderBin = getenv("BLENDER_BIN");
#endif
/* Steam blender */
hecl::SystemString steamBlender;
/* Child process of blender */
#if _WIN32
if (!blenderBin || !RegFileExists(blenderBin))
{
/* Environment not set; try steam */
steamBlender = hecl::FindCommonSteamApp(_SYS_STR("Blender"));
if (steamBlender.size())
{
steamBlender += _SYS_STR("\\blender.exe");
blenderBin = steamBlender.c_str();
}
if (!RegFileExists(blenderBin))
{
/* No steam; try default */
wchar_t progFiles[256];
if (GetEnvironmentVariableW(L"ProgramFiles", progFiles, 256))
{
_snwprintf(BLENDER_BIN_BUF, 2048, L"%s\\Blender Foundation\\Blender\\blender.exe", progFiles);
blenderBin = BLENDER_BIN_BUF;
if (!RegFileExists(blenderBin))
blenderBin = nullptr;
}
else
blenderBin = nullptr;
}
}
#else
if (!RegFileExists(blenderBin))
{
/* Try steam */
steamBlender = hecl::FindCommonSteamApp(_SYS_STR("Blender"));
if (steamBlender.size())
{
#ifdef __APPLE__
steamBlender += "/blender.app/Contents/MacOS/blender";
#else
steamBlender += "/blender";
#endif
blenderBin = steamBlender.c_str();
if (!RegFileExists(blenderBin))
{
blenderBin = DEFAULT_BLENDER_BIN;
if (!RegFileExists(blenderBin))
{
blenderBin = nullptr;
}
}
}
else
{
blenderBin = DEFAULT_BLENDER_BIN;
if (!RegFileExists(blenderBin))
{
blenderBin = nullptr;
}
}
}
#endif
if (!blenderBin)
return {};
hecl::SystemString command = hecl::SystemString(_SYS_STR("\"")) + blenderBin + _SYS_STR("\" --version");
#if _WIN32
FILE* fp = _wpopen(command.c_str(), _SYS_STR("r"));
#else
FILE* fp = popen(command.c_str(), "r");
#endif
char versionBuf[256];
size_t rdSize = fread(versionBuf, 1, 255, fp);
versionBuf[rdSize] = '\0';
#if _WIN32
_pclose(fp);
#else
pclose(fp);
#endif
std::cmatch match;
if (std::regex_search(versionBuf, match, regBlenderVersion))
{
major = atoi(match[1].str().c_str());
minor = atoi(match[2].str().c_str());
return blenderBin;
}
return blenderBin;
}
}