From bba5d34d41ae2ec529ff5b93900425a3481f8ebc Mon Sep 17 00:00:00 2001
From: Robbert van der Helm <mail@robbertvanderhelm.nl>
Date: Wed, 7 Sep 2022 22:32:51 +0200
Subject: [PATCH] Add a serialization struct for clap_host data

---
 src/common/serialization/clap/host.cpp | 30 +++++++++++
 src/common/serialization/clap/host.h   | 75 ++++++++++++++++++++++++++
 2 files changed, 105 insertions(+)
 create mode 100644 src/common/serialization/clap/host.cpp
 create mode 100644 src/common/serialization/clap/host.h

diff --git a/src/common/serialization/clap/host.cpp b/src/common/serialization/clap/host.cpp
new file mode 100644
index 00000000..34f82cc1
--- /dev/null
+++ b/src/common/serialization/clap/host.cpp
@@ -0,0 +1,30 @@
+// yabridge: a Wine plugin bridge
+// Copyright (C) 2020-2022 Robbert van der Helm
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "host.h"
+
+namespace clap {
+namespace host {
+
+Host::Host(const clap_host_t& original)
+    : clap_version(original.clap_version),
+      name((assert(original.name), original.name)),
+      vendor(original.vendor ? std::optional(original.vendor) : std::nullopt),
+      url(original.url ? std::optional(original.url) : std::nullopt),
+      version((assert(original.version), original.version)) {}
+
+}  // namespace host
+}  // namespace clap
diff --git a/src/common/serialization/clap/host.h b/src/common/serialization/clap/host.h
new file mode 100644
index 00000000..2f23fa6c
--- /dev/null
+++ b/src/common/serialization/clap/host.h
@@ -0,0 +1,75 @@
+// yabridge: a Wine plugin bridge
+// Copyright (C) 2020-2022 Robbert van der Helm
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <optional>
+#include <string>
+#include <vector>
+
+#include <bitsery/traits/vector.h>
+#include <clap/plugin.h>
+
+#include "../../bitsery/ext/in-place-optional.h"
+
+// Serialization messages for `clap/host.h`
+
+namespace clap {
+namespace host {
+
+/**
+ * A serializable version of `clap_host_t`'s data fields so we can proxy the
+ * host on the Wine side.
+ */
+struct Host {
+    /**
+     * Parse a host descriptor so it can be serialized and sent to the Wine
+     * plugin host.
+     */
+    Host(const clap_host_t& original);
+
+    /**
+     * Default constructor for bitsery.
+     */
+    Host() {}
+
+    /**
+     * We'll report the maximum of the plugin's supported CLAP version and
+     * yabridge's supported CLAP version. I don't know why there's a version
+     * field here when the entry point also has a version field.
+     */
+    clap_version_t clap_version;
+
+    std::string name;
+    std::optional<std::string> vendor;
+    std::optional<std::string> url;
+    std::string version;
+
+    template <typename S>
+    void serialize(S& s) {
+        s.object(clap_version);
+
+        s.text1b(name, 4096);
+        s.ext(vendor, bitsery::ext::InPlaceOptional(),
+              [](S& s, auto& v) { s.text1b(v, 4096); });
+        s.ext(url, bitsery::ext::InPlaceOptional(),
+              [](S& s, auto& v) { s.text1b(v, 4096); });
+        s.text1b(version, 4096);
+    }
+};
+
+}  // namespace host
+}  // namespace clap