VideoCommon: separate the concept of a 'resource' from an 'asset'. A resource is potentially multiple assets that are chained together but represent one type of data to the rest of the system. An example is a 'material'. A 'material' is a collection of textures, a custom shader, and some metadata that all comes together to form what the concept of the material is. There will be a 'material' resource. For now, start small by introducing the interface and change our texture loading which used assets from the old resource manager, to an actual resource.

Source/Core/VideoCommon/Resources/TextureDataResource.cpp

@@ -0,0 +1,48 @@
+// Copyright 2025 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "VideoCommon/Resources/TextureDataResource.h"
+
+#include "VideoCommon/Assets/CustomAssetCache.h"
+
+namespace VideoCommon
+{
+TextureDataResource::TextureDataResource(Resource::ResourceContext resource_context)
+    : Resource(std::move(resource_context))
+{
+  m_texture_asset = m_resource_context.asset_cache->CreateAsset<TextureAsset>(
+      m_resource_context.primary_asset_id, m_resource_context.asset_library, this);
+}
+
+std::shared_ptr<CustomTextureData> TextureDataResource::GetData() const
+{
+  return m_current_texture_data;
+}
+
+CustomAsset::TimeType TextureDataResource::GetLoadTime() const
+{
+  return m_current_time;
+}
+
+Resource::TaskComplete TextureDataResource::CollectPrimaryData()
+{
+  const auto last_load_time = m_texture_asset->GetLastLoadedTime();
+  const auto asset = m_texture_asset->GetData();
+  if (!asset)
+    return Resource::TaskComplete::No;
+
+  m_current_texture_data = asset;
+  m_current_time = last_load_time;
+  return Resource::TaskComplete::Yes;
+}
+
+void TextureDataResource::MarkAsActive()
+{
+  m_resource_context.asset_cache->MarkAssetActive(m_texture_asset);
+}
+
+void TextureDataResource::MarkAsPending()
+{
+  m_resource_context.asset_cache->MarkAssetPending(m_texture_asset);
+}
+}  // namespace VideoCommon