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Added support for prefixing the es_systems.xml %EMULATOR_% variable with a command.

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Also added trimming of leading and trailing whitespace characters from the launch command.
This commit is contained in:
Leon Styhre 2021-12-16 18:05:36 +01:00
parent 9ae1c33a52
commit 96bbd25e79
1 changed files with 25 additions and 15 deletions
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40
es-app/src/FileData.cpp
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@ -885,9 +885,8 @@ void FileData::launchGame(Window* window)
// Hack to show an error message if there was no emulator entry in es_find_rules.xml.
if (binaryPath.substr(0, 18) == "NO EMULATOR RULE: ") {
std::string emulatorEntry = binaryPath.substr(18, binaryPath.size() - 18);
LOG(LogError)
<< "Couldn't launch game, either there is no emulator entry for \"" << emulatorEntry
<< "\" in es_find_rules.xml or there are no systempath or staticpath rules defined";
LOG(LogError) << "Couldn't launch game, either there is no emulator entry for \""
<< emulatorEntry << "\" in es_find_rules.xml or there are no rules defined";
LOG(LogError) << "Raw emulator launch command:";
LOG(LogError) << commandRaw;
@ -1079,6 +1078,9 @@ void FileData::launchGame(Window* window)
command = Utils::String::replace(command, "%BASENAME%", baseName);
command = Utils::String::replace(command, "%ROMRAW%", romRaw);
// Trim any leading and trailing whitespace characters as they could cause launch issues.
command = Utils::String::trim(command);
// swapBuffers() is called here to turn the screen black to eliminate some potential
// flickering and to avoid showing the game launch message briefly when returning
// from the game.
@ -1173,9 +1175,10 @@ const std::string FileData::findEmulatorPath(std::string& command)
{
// Extract the emulator executable from the launch command string. There are two ways
// that the emulator can be defined in es_systems.xml, either using the find rules in
// es_find_rules.xml or via the exact emulator binary name. In the former case, we
// need to process any configured systempath and staticpath rules, and in the latter
// we simply search for the emulator binary in the system path.
// es_find_rules.xml or via the explicit emulator binary name. In the former case, we
// need to process any configured systempath and staticpath rules (and for Windows also
// winregistrypath and winregistryvalue rules), and in the latter case we simply search
// for the emulator binary in the system path.
std::string emuExecutable;
std::string exePath;
@ -1189,12 +1192,13 @@ const std::string FileData::findEmulatorPath(std::string& command)
std::vector<std::string> emulatorSystemPaths;
std::vector<std::string> emulatorStaticPaths;
std::string emulatorEntry;
size_t endPos = 0;
size_t startPos{0};
size_t endPos{0};
if (command.find("%EMULATOR_", 0) == 0) {
endPos = command.find("%", 1);
if ((startPos = command.find("%EMULATOR_")) != std::string::npos) {
endPos = command.find("%", startPos + 1);
if (endPos != std::string::npos)
emulatorEntry = command.substr(10, endPos - 10);
emulatorEntry = command.substr(startPos + 10, endPos - startPos - 10);
}
if (emulatorEntry != "") {
@ -1209,7 +1213,13 @@ const std::string FileData::findEmulatorPath(std::string& command)
}
// Error handling in case of no emulator find rule.
#if defined(_WIN64)
if (emulatorEntry != "" && emulatorWinRegistryPaths.empty() &&
emulatorWinRegistryValues.empty() && emulatorSystemPaths.empty() &&
emulatorStaticPaths.empty())
#else
if (emulatorEntry != "" && emulatorSystemPaths.empty() && emulatorStaticPaths.empty())
#endif
return "NO EMULATOR RULE: " + emulatorEntry;
#if defined(_WIN64)
@ -1249,7 +1259,7 @@ const std::string FileData::findEmulatorPath(std::string& command)
if (pathStatus == ERROR_SUCCESS) {
if (Utils::FileSystem::isRegularFile(registryPath) ||
Utils::FileSystem::isSymlink(registryPath)) {
command.replace(0, endPos + 1, registryPath);
command.replace(startPos, endPos - startPos + 1, registryPath);
RegCloseKey(registryKey);
return registryPath;
}
@ -1294,7 +1304,7 @@ const std::string FileData::findEmulatorPath(std::string& command)
// so check for that as well.
if (pathStatus == ERROR_SUCCESS) {
if (Utils::FileSystem::isRegularFile(path) || Utils::FileSystem::isSymlink(path)) {
command.replace(0, endPos + 1, path);
command.replace(startPos, endPos - startPos + 1, path);
RegCloseKey(registryKey);
return path;
}
@ -1324,14 +1334,14 @@ const std::string FileData::findEmulatorPath(std::string& command)
}
if (exePath != "") {
exePath += "\\" + path;
command.replace(0, endPos + 1, exePath);
command.replace(startPos, endPos - startPos + 1, exePath);
return exePath;
}
#else
exePath = Utils::FileSystem::getPathToBinary(path);
if (exePath != "") {
exePath += "/" + path;
command.replace(0, endPos + 1, exePath);
command.replace(startPos, endPos - startPos + 1, exePath);
return exePath;
}
#endif
@ -1345,7 +1355,7 @@ const std::string FileData::findEmulatorPath(std::string& command)
path = Utils::String::replace(path, "%ROMPATH%", getROMDirectory());
if (Utils::FileSystem::isRegularFile(path) || Utils::FileSystem::isSymlink(path)) {
command.replace(0, endPos + 1, path);
command.replace(startPos, endPos - startPos + 1, path);
return path;
}
}