From a595e9e8a7a6a742481b1cd05455d3c639095413 Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Mon, 22 Jan 2024 12:40:50 -0500
Subject: nvnflinger/gpu: implement layer stack composition

---
 src/core/hle/service/vi/display/vi_display.cpp |  4 ++--
 src/core/hle/service/vi/display/vi_display.h   | 15 +++++++++++++--
 src/core/hle/service/vi/vi.cpp                 |  5 +++--
 3 files changed, 18 insertions(+), 6 deletions(-)

(limited to 'src/core/hle/service/vi')

diff --git a/src/core/hle/service/vi/display/vi_display.cpp b/src/core/hle/service/vi/display/vi_display.cpp
index dab1905cc..7f2af9acc 100644
--- a/src/core/hle/service/vi/display/vi_display.cpp
+++ b/src/core/hle/service/vi/display/vi_display.cpp
@@ -16,6 +16,7 @@
 #include "core/hle/service/nvnflinger/buffer_queue_consumer.h"
 #include "core/hle/service/nvnflinger/buffer_queue_core.h"
 #include "core/hle/service/nvnflinger/buffer_queue_producer.h"
+#include "core/hle/service/nvnflinger/hardware_composer.h"
 #include "core/hle/service/nvnflinger/hos_binder_driver_server.h"
 #include "core/hle/service/vi/display/vi_display.h"
 #include "core/hle/service/vi/layer/vi_layer.h"
@@ -43,6 +44,7 @@ Display::Display(u64 id, std::string name_,
                  KernelHelpers::ServiceContext& service_context_, Core::System& system_)
     : display_id{id}, name{std::move(name_)}, hos_binder_driver_server{hos_binder_driver_server_},
       service_context{service_context_} {
+    hardware_composer = std::make_unique<Nvnflinger::HardwareComposer>();
     vsync_event = service_context.CreateEvent(fmt::format("Display VSync Event {}", id));
 }
 
@@ -81,8 +83,6 @@ void Display::SignalVSyncEvent() {
 
 void Display::CreateLayer(u64 layer_id, u32 binder_id,
                           Service::Nvidia::NvCore::Container& nv_core) {
-    ASSERT_MSG(layers.empty(), "Only one layer is supported per display at the moment");
-
     auto [core, producer, consumer] = CreateBufferQueue(service_context, nv_core.GetNvMapFile());
 
     auto buffer_item_consumer = std::make_shared<android::BufferItemConsumer>(std::move(consumer));
diff --git a/src/core/hle/service/vi/display/vi_display.h b/src/core/hle/service/vi/display/vi_display.h
index 8eb8a5155..220292cff 100644
--- a/src/core/hle/service/vi/display/vi_display.h
+++ b/src/core/hle/service/vi/display/vi_display.h
@@ -11,9 +11,14 @@
 #include "common/common_types.h"
 #include "core/hle/result.h"
 
+namespace Core {
+class System;
+}
+
 namespace Kernel {
 class KEvent;
-}
+class KReadableEvent;
+} // namespace Kernel
 
 namespace Service::android {
 class BufferQueueProducer;
@@ -24,8 +29,9 @@ class ServiceContext;
 }
 
 namespace Service::Nvnflinger {
+class HardwareComposer;
 class HosBinderDriverServer;
-}
+} // namespace Service::Nvnflinger
 
 namespace Service::Nvidia::NvCore {
 class Container;
@@ -118,6 +124,10 @@ public:
     ///
     const Layer* FindLayer(u64 layer_id) const;
 
+    Nvnflinger::HardwareComposer& GetComposer() const {
+        return *hardware_composer;
+    }
+
 private:
     u64 display_id;
     std::string name;
@@ -125,6 +135,7 @@ private:
     KernelHelpers::ServiceContext& service_context;
 
     std::vector<std::unique_ptr<Layer>> layers;
+    std::unique_ptr<Nvnflinger::HardwareComposer> hardware_composer;
     Kernel::KEvent* vsync_event{};
     bool is_abandoned{};
 };
diff --git a/src/core/hle/service/vi/vi.cpp b/src/core/hle/service/vi/vi.cpp
index 73058db9a..d508ed28c 100644
--- a/src/core/hle/service/vi/vi.cpp
+++ b/src/core/hle/service/vi/vi.cpp
@@ -195,8 +195,9 @@ private:
     void GetSharedBufferMemoryHandleId(HLERequestContext& ctx) {
         IPC::RequestParser rp{ctx};
         const u64 buffer_id = rp.PopRaw<u64>();
+        const u64 aruid = ctx.GetPID();
 
-        LOG_INFO(Service_VI, "called. buffer_id={:#x}", buffer_id);
+        LOG_INFO(Service_VI, "called. buffer_id={:#x}, aruid={:#x}", buffer_id, aruid);
 
         struct OutputParameters {
             s32 nvmap_handle;
@@ -206,7 +207,7 @@ private:
         OutputParameters out{};
         Nvnflinger::SharedMemoryPoolLayout layout{};
         const auto result = nvnflinger.GetSystemBufferManager().GetSharedBufferMemoryHandleId(
-            &out.size, &out.nvmap_handle, &layout, buffer_id, 0);
+            &out.size, &out.nvmap_handle, &layout, buffer_id, aruid);
 
         ctx.WriteBuffer(&layout, sizeof(layout));
 
-- 
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