From a7e9d7842dc78e09bfe50ba3bc471b8a75d29b96 Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Tue, 2 Jan 2024 19:22:02 -0500
Subject: am: add new datatypes for per-applet state

---
 src/core/hle/service/am/managed_layer_holder.cpp | 59 ++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 src/core/hle/service/am/managed_layer_holder.cpp

(limited to 'src/core/hle/service/am/managed_layer_holder.cpp')

diff --git a/src/core/hle/service/am/managed_layer_holder.cpp b/src/core/hle/service/am/managed_layer_holder.cpp
new file mode 100644
index 000000000..61eb8641a
--- /dev/null
+++ b/src/core/hle/service/am/managed_layer_holder.cpp
@@ -0,0 +1,59 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/am/managed_layer_holder.h"
+#include "core/hle/service/nvnflinger/nvnflinger.h"
+
+namespace Service::AM {
+
+ManagedLayerHolder::ManagedLayerHolder() = default;
+ManagedLayerHolder::~ManagedLayerHolder() {
+    if (!m_nvnflinger) {
+        return;
+    }
+
+    for (const auto& layer : m_managed_display_layers) {
+        m_nvnflinger->DestroyLayer(layer);
+    }
+
+    for (const auto& layer : m_managed_display_recording_layers) {
+        m_nvnflinger->DestroyLayer(layer);
+    }
+
+    m_nvnflinger = nullptr;
+}
+
+void ManagedLayerHolder::Initialize(Nvnflinger::Nvnflinger* nvnflinger) {
+    m_nvnflinger = nvnflinger;
+}
+
+void ManagedLayerHolder::CreateManagedDisplayLayer(u64* out_layer) {
+    // TODO(Subv): Find out how AM determines the display to use, for now just
+    // create the layer in the Default display.
+    const auto display_id = m_nvnflinger->OpenDisplay("Default");
+    const auto layer_id = m_nvnflinger->CreateLayer(*display_id);
+
+    m_managed_display_layers.emplace(*layer_id);
+
+    *out_layer = *layer_id;
+}
+
+void ManagedLayerHolder::CreateManagedDisplaySeparableLayer(u64* out_layer,
+                                                            u64* out_recording_layer) {
+    // TODO(Subv): Find out how AM determines the display to use, for now just
+    // create the layer in the Default display.
+    // This calls nn::vi::CreateRecordingLayer() which creates another layer.
+    // Currently we do not support more than 1 layer per display, output 1 layer id for now.
+    // Outputting 1 layer id instead of the expected 2 has not been observed to cause any adverse
+    // side effects.
+    // TODO: Support multiple layers
+    const auto display_id = m_nvnflinger->OpenDisplay("Default");
+    const auto layer_id = m_nvnflinger->CreateLayer(*display_id);
+
+    m_managed_display_layers.emplace(*layer_id);
+
+    *out_layer = *layer_id;
+    *out_recording_layer = 0;
+}
+
+} // namespace Service::AM
-- 
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