Create Vst3HostContextProxy from YaHostApplication

This is quite a huge refactor, but note everything is consistent (and
we're going to need one or two more of these `Vst3*Proxy` objects).
Right now nothing extends `IHostApplication`, but this way it will be
trivial to add support for more host context interfaces.

src/wine-host/bridges/vst3-impls/host-context-proxy.cpp

@@ -14,24 +14,25 @@
 // 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-application.h"
+#include "host-context-proxy.h"
 
 #include <iostream>
 
-YaHostApplicationImpl::YaHostApplicationImpl(
+Vst3HostContextProxyImpl::Vst3HostContextProxyImpl(
     Vst3Bridge& bridge,
-    YaHostApplication::ConstructArgs&& args)
-    : YaHostApplication(std::move(args)), bridge(bridge) {
+    Vst3HostContextProxy::ConstructArgs&& args)
+    : Vst3HostContextProxy(std::move(args)), bridge(bridge) {
     // The lifecycle is thos object is managed together with that of the plugin
-    // object instance this belongs to
+    // object instance instance this belongs to
 }
 
 tresult PLUGIN_API
-YaHostApplicationImpl::queryInterface(const Steinberg::TUID _iid, void** obj) {
+Vst3HostContextProxyImpl::queryInterface(const Steinberg::TUID _iid,
+                                         void** obj) {
     // I don't think it's expected of a host to implement multiple interfaces on
     // this object, so if we do get a call here it's important that it's logged
     // TODO: Successful queries should also be logged
-    const tresult result = YaHostApplication::queryInterface(_iid, obj);
+    const tresult result = Vst3HostContextProxy::queryInterface(_iid, obj);
     if (result != Steinberg::kResultOk) {
         std::cerr << "TODO: Implement unknown interface logging on Wine side"
                   << std::endl;
@@ -40,9 +41,10 @@ YaHostApplicationImpl::queryInterface(const Steinberg::TUID _iid, void** obj) {
     return result;
 }
 
-tresult PLUGIN_API YaHostApplicationImpl::createInstance(Steinberg::TUID cid,
-                                                         Steinberg::TUID _iid,
-                                                         void** obj) {
+tresult PLUGIN_API
+Vst3HostContextProxyImpl::createInstance(Steinberg::TUID cid,
+                                         Steinberg::TUID _iid,
+                                         void** obj) {
     // TODO: Implement
     std::cerr << "TODO: IHostApplication::createInstance()" << std::endl;
     return Steinberg::kNotImplemented;

src/wine-host/bridges/vst3-impls/host-context-proxy.h

@@ -18,10 +18,10 @@
 
 #include "../vst3.h"
 
-class YaHostApplicationImpl : public YaHostApplication {
+class Vst3HostContextProxyImpl : public Vst3HostContextProxy {
    public:
-    YaHostApplicationImpl(Vst3Bridge& bridge,
-                          YaHostApplication::ConstructArgs&& args);
+    Vst3HostContextProxyImpl(Vst3Bridge& bridge,
+                             Vst3HostContextProxy::ConstructArgs&& args);
 
     /**
      * We'll override the query interface to log queries for interfaces we do
@@ -30,6 +30,7 @@ class YaHostApplicationImpl : public YaHostApplication {
     tresult PLUGIN_API queryInterface(const Steinberg::TUID _iid,
                                       void** obj) override;
 
+    // From `IHostApplication`
     tresult PLUGIN_API createInstance(Steinberg::TUID cid,
                                       Steinberg::TUID _iid,
                                       void** obj) override;