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* Feature: Add TORQUE_DYNAMIC_LIBRARY as an experimental flag to allow building the core engine as a shared library.

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This commit is contained in:
Robert MacGregor 2022-06-01 16:59:06 -04:00
parent c90d3ddc2a
commit b1d36c0cca
3 changed files with 42 additions and 96 deletions
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109
Engine/source/main/main.cpp
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@ -100,121 +100,44 @@ int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdL
}
#endif // WIN32
#ifdef __MACOSX__
#include <dlfcn.h>
#include <stdio.h>
#include <unistd.h>
#include <libgen.h> // for dirname
#include <filesystem>
#include <mach-o/dyld.h> // for _NSGetExecutablePath
#include <Carbon/Carbon.h>
extern "C" {
int (*torque_macmain)(int argc, const char **argv) = 0;
}
void GetBasePath(const char** cpath, const char** cname)
{
static char path[2049];
static char name[2049];
ProcessSerialNumber PSN;
ProcessInfoRec pinfo;
FSSpec pspec;
FSRef fsr;
OSStatus err;
path[0] = 0;
name[0] = 0;
*cpath = path;
*cname = name;
// set up process serial number
PSN.highLongOfPSN = 0;
PSN.lowLongOfPSN = kCurrentProcess;
// set up info block
pinfo.processInfoLength = sizeof(pinfo);
pinfo.processName = NULL;
pinfo.processAppSpec = &pspec;
// grab the vrefnum and directory
err = GetProcessInformation(&PSN, &pinfo);
if (! err ) {
FSSpec fss2;
strcpy(name, &pspec.name[1]);
err = FSMakeFSSpec(pspec.vRefNum, pspec.parID, 0, &fss2);
if ( ! err ) {
err = FSpMakeFSRef(&fss2, &fsr);
if ( ! err ) {
err = (OSErr)FSRefMakePath(&fsr, (UInt8*)path, 2048);
}
}
}
}
}
int main(int argc, const char **argv)
{
void *gameBundle = 0;
char gameBundleFilename[2049];
char path[PATH_MAX];
uint32_t pathLen = sizeof(path);
int err = _NSGetExecutablePath(path, &pathLen);
const char* basePath;
const char* appName;
char* executableDirectory = dirname(path);
// Get the path to our app binary and the app name
// Once the executable directory is determined, we search two possibilities: The frameworks and next to the app bundle
chdir(executableDirectory);
chdir("../Frameworks");
GetBasePath(&basePath, &appName);
if (!basePath[0] || !appName[0])
return;
char appNameNoDebug[2049];
strcpy(appNameNoDebug, appName);
int i = strlen(appName);
while (i > 0)
void *gameLib = dlopen("libTorqueEngine.dylib", RTLD_LAZY | RTLD_LOCAL);
if (!gameLib)
{
if (!strcmp(&appName[i], "_DEBUG"))
{
appNameNoDebug[i] = 0;
break;
}
i--;
}
sprintf(gameBundleFilename, "%s.app/Contents/Frameworks/%s Bundle.bundle/Contents/MacOS/%s Bundle", appName, appNameNoDebug, appNameNoDebug);
// first see if the current directory is set properly
gameBundle = dlopen(gameBundleFilename, RTLD_LAZY | RTLD_LOCAL);
if (!gameBundle)
{
// Couldn't load the game bundle... so, using the path to the bundle binary fix up the cwd
if (basePath[0]) {
chdir( basePath );
chdir( "../../../" );
}
// and try again
gameBundle = dlopen( gameBundleFilename, RTLD_LAZY | RTLD_LOCAL);
}
if (!gameBundle)
return -1;
}
torque_macmain = (int (*)(int argc, const char **argv)) dlsym(gameBundle, "torque_macmain");
torque_macmain = (int (*)(int argc, const char **argv)) dlsym(gameLib, "torque_macmain");
if (!torque_macmain)
return -1;
return -2;
return torque_macmain(argc, argv);
}