mirror of
https://github.com/robbert-vdh/yabridge.git
synced 2026-05-08 20:40:11 +02:00
Robbert van der Helm
09ba0d887b
MainContext is now basically just a wrapper with a simple event loop implementation so it's not really necessary, but having a separate type for the 'main' IO context still makes everything much clearer.
100 lines
3.6 KiB
C++
100 lines
3.6 KiB
C++
// yabridge: a Wine VST bridge
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// Copyright (C) 2020 Robbert van der Helm
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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#include <iostream>
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#include <thread>
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// Generated inside of the build directory
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#include <src/common/config/config.h>
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#include <src/common/config/version.h>
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#include "../common/utils.h"
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#include "bridges/vst2.h"
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/**
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* This is the default VST host application. It will load the specified VST2
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* plugin, and then connect back to the `libyabridge.so` instance that spawned
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* this over the socket.
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*
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* The explicit calling convention is needed to work around a bug introduced in
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* Wine 5.7: https://bugs.winehq.org/show_bug.cgi?id=49138
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*/
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int __cdecl main(int argc, char* argv[]) {
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set_realtime_priority();
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// We pass the name of the VST plugin .dll file to load and the base
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// directory for the Unix domain socket endpoints to connect to as the first
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// two arguments of this process in plugin/bridge.cpp.
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if (argc < 3) {
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std::cerr << "Usage: "
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#ifdef __i386__
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<< yabridge_individual_host_name_32bit
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#else
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<< yabridge_individual_host_name
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#endif
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<< " <vst_plugin_dll> <endpoint_base_directory>" << std::endl;
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return 1;
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}
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const std::string plugin_dll_path(argv[1]);
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const std::string socket_endpoint_path(argv[2]);
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std::cout << "Initializing yabridge host version " << yabridge_git_version
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#ifdef __i386__
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<< " (32-bit compatibility mode)"
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#endif
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<< std::endl;
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// As explained in `Vst2Bridge`, the plugin has to be initialized in the
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// same thread as the one that calls `io_context.run()`. This setup is
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// slightly more convoluted than it has to be, but doing it this way we
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// don't need to differentiate between individually hosted plugins and
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// plugin groups when it comes to event handling.
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MainContext main_context{};
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std::unique_ptr<Vst2Bridge> bridge;
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try {
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bridge = std::make_unique<Vst2Bridge>(main_context, plugin_dll_path,
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socket_endpoint_path);
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} catch (const std::runtime_error& error) {
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std::cerr << "Error while initializing Wine VST host:" << std::endl;
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std::cerr << error.what() << std::endl;
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return 1;
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}
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std::cout << "Finished initializing '" << plugin_dll_path << "'"
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<< std::endl;
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// We'll listen for `dispatcher()` calls on a different thread, but the
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// actual events will still be executed within the IO context
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Win32Thread dispatch_handler([&]() {
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bridge->handle_dispatch();
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// When the sockets get closed, this application should terminate
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// gracefully
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main_context.stop();
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});
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// Handle Win32 messages and X11 events on a timer, just like in
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// `GroupBridge::async_handle_events()``
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main_context.async_handle_events([&]() {
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bridge->handle_x11_events();
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bridge->handle_win32_events();
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});
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main_context.run();
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}
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