std::string System::findDataFile
(const std::string& full,
bool errorIfNotFound) {
// Places where specific files were most recently found. This is
// used to cache seeking of common files.
static Table<std::string, std::string> lastFound;
// First check if the file exists as requested. This will go
// through the FileSystemCache, so most calls do not touch disk.
if (FileSystem::exists(full)) {
return full;
}
// Now check where we previously found this file.
std::string* last = lastFound.getPointer(full);
if (last != NULL) {
if (FileSystem::exists(*last)) {
// Even if cwd has changed the file is still present.
// We won't notice if it has been deleted, however.
return *last;
} else {
// Remove this from the cache it is invalid
lastFound.remove(full);
}
}
// Places to look
static Array<std::string> directoryArray;
std::string initialAppDataDir(instance().m_appDataDir);
const char* g3dPath = getenv("G3DDATA");
if (directoryArray.size() == 0) {
// Initialize the directory array
RealTime t0 = System::time();
Array<std::string> baseDirArray;
baseDirArray.append("");
if (! initialAppDataDir.empty()) {
baseDirArray.append(initialAppDataDir);
}
# ifdef G3D_WIN32
if (g3dPath == NULL) {
// If running the demos under visual studio from the G3D.sln file,
// this will locate the data directory.
const char* paths[] = {"../data-files/", "../../data-files/", "../../../data-files/", NULL};
for (int i = 0; paths[i]; ++i) {
if (FileSystem::exists(pathConcat(paths[i], "G3D-DATA-README.TXT"))) {
g3dPath = paths[i];
break;
}
}
}
# endif
if (g3dPath && (initialAppDataDir != g3dPath)) {
baseDirArray.append(g3dPath);
}
static const std::string subdirs[] =
{"font", "gui", "SuperShader", "cubemap", "icon", "material", "image", "md2", "md3", "ifs", "3ds", "sky", ""};
for (int j = 0; j < baseDirArray.size(); ++j) {
std::string d = baseDirArray[j];
if ((d == "") || FileSystem::exists(d)) {
directoryArray.append(d);
for (int i = 0; ! subdirs[i].empty(); ++i) {
const std::string& p = pathConcat(d, subdirs[i]);
if (FileSystem::exists(p)) {
directoryArray.append(p);
}
}
}
}
logLazyPrintf("Initializing System::findDataFile took %fs\n", System::time() - t0);
}
for (int i = 0; i < directoryArray.size(); ++i) {
const std::string& p = pathConcat(directoryArray[i], full);
if (FileSystem::exists(p)) {
lastFound.set(full, p);
return p;
}
}
if (errorIfNotFound) {
// Generate an error message
std::string locations;
for (int i = 0; i < directoryArray.size(); ++i) {
locations += "\'" + pathConcat(directoryArray[i], full) + "'\n";
}
std::string msg = "Could not find '" + full + "'.\n\n";
msg += "cwd = \'" + FileSystem::currentDirectory() + "\'\n";
if (g3dPath) {
msg += "G3DDATA = ";
if (! FileSystem::exists(g3dPath)) {
msg += "(illegal path!) ";
}
msg += std::string(g3dPath) + "\'\n";
} else {
msg += "(G3DDATA environment variable is undefined)\n";
}
msg += "GApp::Settings.dataDir = ";
if (! FileSystem::exists(initialAppDataDir)) {
msg += "(illegal path!) ";
}
msg += std::string(initialAppDataDir) + "\'\n";
msg += "\nLocations searched:\n" + locations;
alwaysAssertM(false, msg);
}
// Not found
return "";
}
std::string System::findDataFile
(const std::string& full,
bool errorIfNotFound) {
// Places where specific files were most recently found. This is
// used to cache seeking of common files.
static Table<std::string, std::string> lastFound;
// First check if the file exists as requested. This will go
// through the FileSystemCache, so most calls do not touch disk.
if (fileExists(full)) {
return full;
}
// Now check where we previously found this file.
std::string* last = lastFound.getPointer(full);
if (last != NULL) {
if (fileExists(*last)) {
// Even if cwd has changed the file is still present.
// We won't notice if it has been deleted, however.
return *last;
} else {
// Remove this from the cache it is invalid
lastFound.remove(full);
}
}
// Places to look
static Array<std::string> directoryArray;
if (directoryArray.size() == 0) {
// Initialize the directory array
RealTime t0 = System::time();
Array<std::string> baseDirArray;
std::string initialAppDataDir(instance().m_appDataDir);
baseDirArray.append("");
if (! initialAppDataDir.empty()) {
baseDirArray.append(initialAppDataDir);
}
const char* g3dPath = getenv("G3DDATA");
if (g3dPath && (initialAppDataDir != g3dPath)) {
baseDirArray.append(g3dPath);
}
static const std::string subdirs[] =
{"font", "gui", "SuperShader", "cubemap", "icon", "material", "image", "md2", "md3", "ifs", "3ds", "sky", ""};
for (int j = 0; j < baseDirArray.size(); ++j) {
std::string d = baseDirArray[j];
if (fileExists(d)) {
directoryArray.append(d);
for (int i = 0; ! subdirs[i].empty(); ++i) {
const std::string& p = pathConcat(d, subdirs[i]);
if (fileExists(p)) {
directoryArray.append(p);
}
}
}
}
logLazyPrintf("Initializing System::findDataFile took %fs\n", System::time() - t0);
}
for (int i = 0; i < directoryArray.size(); ++i) {
const std::string& p = pathConcat(directoryArray[i], full);
if (fileExists(p)) {
lastFound.set(full, p);
return p;
}
}
if (errorIfNotFound) {
// Generate an error message
std::string locations;
for (int i = 0; i < directoryArray.size(); ++i) {
locations += pathConcat(directoryArray[i], full) + "\n";
}
alwaysAssertM(false, "Could not find '" + full + "' in:\n" + locations);
}
// Not found
return "";
}
