From 0e3b5af94ec2c4fa409445f0cfb73e89abc0bbea Mon Sep 17 00:00:00 2001
From: Robbert van der Helm <mail@robbertvanderhelm.nl>
Date: Mon, 4 Jan 2021 22:33:44 +0100
Subject: [PATCH] Fully implement IAudioPresentationLatency

Now we support all VST 3.1.0 interfaces.
---
 src/common/serialization/vst3.h                |  1 +
 src/plugin/bridges/vst3-impls/plugin-proxy.cpp | 11 ++++++-----
 src/wine-host/bridges/vst3.cpp                 | 11 +++++++++++
 src/wine-host/bridges/vst3.h                   |  2 ++
 4 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/src/common/serialization/vst3.h b/src/common/serialization/vst3.h
index ac4e909a..bfed88a4 100644
--- a/src/common/serialization/vst3.h
+++ b/src/common/serialization/vst3.h
@@ -68,6 +68,7 @@ using ControlRequest =
                  Vst3PluginProxy::Destruct,
                  Vst3PluginProxy::SetState,
                  Vst3PluginProxy::GetState,
+                 YaAudioPresentationLatency::SetAudioPresentationLatencySamples,
                  YaConnectionPoint::Connect,
                  YaConnectionPoint::Disconnect,
                  YaConnectionPoint::Notify,
diff --git a/src/plugin/bridges/vst3-impls/plugin-proxy.cpp b/src/plugin/bridges/vst3-impls/plugin-proxy.cpp
index 4da62329..95070d81 100644
--- a/src/plugin/bridges/vst3-impls/plugin-proxy.cpp
+++ b/src/plugin/bridges/vst3-impls/plugin-proxy.cpp
@@ -43,11 +43,12 @@ tresult PLUGIN_API Vst3PluginProxyImpl::setAudioPresentationLatencySamples(
     Steinberg::Vst::BusDirection dir,
     int32 busIndex,
     uint32 latencyInSamples) {
-    // TODO: Implement
-    bridge.logger.log(
-        "TODO: "
-        "IAudioPresentationLatency::setAudioPresentationLatencySamples()");
-    return Steinberg::kNotImplemented;
+    return bridge.send_message(
+        YaAudioPresentationLatency::SetAudioPresentationLatencySamples{
+            .instance_id = instance_id(),
+            .dir = dir,
+            .bus_index = busIndex,
+            .latency_in_samples = latencyInSamples});
 }
 
 tresult PLUGIN_API Vst3PluginProxyImpl::setBusArrangements(
diff --git a/src/wine-host/bridges/vst3.cpp b/src/wine-host/bridges/vst3.cpp
index 29a26efc..de99d18d 100644
--- a/src/wine-host/bridges/vst3.cpp
+++ b/src/wine-host/bridges/vst3.cpp
@@ -36,6 +36,7 @@ InstanceInterfaces::InstanceInterfaces() {}
 InstanceInterfaces::InstanceInterfaces(
     Steinberg::IPtr<Steinberg::FUnknown> object)
     : object(object),
+      audio_presentation_latency(object),
       audio_processor(object),
       component(object),
       connection_point(object),
@@ -183,6 +184,16 @@ void Vst3Bridge::run() {
                 return Vst3PluginProxy::GetStateResponse{
                     .result = result, .updated_state = std::move(stream)};
             },
+            [&](YaAudioPresentationLatency::SetAudioPresentationLatencySamples&
+                    request)
+                -> YaAudioPresentationLatency::
+                    SetAudioPresentationLatencySamples::Response {
+                        return object_instances[request.instance_id]
+                            .audio_presentation_latency
+                            ->setAudioPresentationLatencySamples(
+                                request.dir, request.bus_index,
+                                request.latency_in_samples);
+                    },
             [&](YaConnectionPoint::Connect& request)
                 -> YaConnectionPoint::Connect::Response {
                 // If the host directly connected the underlying objects then we
diff --git a/src/wine-host/bridges/vst3.h b/src/wine-host/bridges/vst3.h
index 84569288..55a3932f 100644
--- a/src/wine-host/bridges/vst3.h
+++ b/src/wine-host/bridges/vst3.h
@@ -128,6 +128,8 @@ struct InstanceInterfaces {
     // All smart pointers below are created from `component`. They will be null
     // pointers if `component` did not implement the interface.
 
+    Steinberg::FUnknownPtr<Steinberg::Vst::IAudioPresentationLatency>
+        audio_presentation_latency;
     Steinberg::FUnknownPtr<Steinberg::Vst::IAudioProcessor> audio_processor;
     Steinberg::FUnknownPtr<Steinberg::Vst::IComponent> component;
     Steinberg::FUnknownPtr<Steinberg::Vst::IConnectionPoint> connection_point;