VideoCommon: update resource manager with a material/shader/and texture(+sampler) resource to show the complexities that warrant the resource manager system

Source/Core/VideoCommon/Resources/ShaderResource.h

@@ -0,0 +1,67 @@
+// Copyright 2025 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <atomic>
+
+#include "VideoCommon/Resources/Resource.h"
+
+#include "VideoCommon/Assets/ShaderAsset.h"
+#include "VideoCommon/GXPipelineTypes.h"
+#include "VideoCommon/ShaderGenCommon.h"
+
+namespace VideoCommon
+{
+class ShaderResource final : public Resource
+{
+public:
+  ShaderResource(Resource::ResourceContext resource_context, const GXPipelineUid& pipeline_uid,
+                 const std::string& preprocessor_settings,
+                 const ShaderHostConfig& shader_host_config);
+
+  class Data
+  {
+  public:
+    AbstractShader* GetVertexShader() const;
+    AbstractShader* GetPixelShader() const;
+    AbstractShader* GetGeometryShader() const;
+
+    bool IsCompiled() const;
+    AbstractTextureType GetTextureType(std::size_t index);
+
+  private:
+    friend class ShaderResource;
+    std::unique_ptr<AbstractShader> m_vertex_shader;
+    std::unique_ptr<AbstractShader> m_pixel_shader;
+    std::unique_ptr<AbstractShader> m_geometry_shader;
+    std::shared_ptr<RasterSurfaceShaderData> m_shader_data;
+    bool m_needs_geometry_shader = false;
+    std::atomic_bool m_processing_finished;
+  };
+
+  // Changes the shader host config. Shaders should be reloaded afterwards.
+  void SetHostConfig(const ShaderHostConfig& host_config);
+  const std::shared_ptr<Data>& GetData() const { return m_current_data; }
+
+  void MarkAsActive() override;
+  void MarkAsPending() override;
+
+private:
+  void ResetData() override;
+  Resource::TaskComplete CollectPrimaryData() override;
+  TaskComplete ProcessData() override;
+
+  // Note: asset cache owns the asset, we access as a reference
+  RasterSurfaceShaderAsset* m_shader_asset = nullptr;
+
+  std::shared_ptr<Data> m_current_data;
+  std::shared_ptr<Data> m_load_data;
+
+  bool m_processing_load_data = false;
+
+  ShaderHostConfig m_shader_host_config;
+  GXPipelineUid m_uid;
+  std::string m_preprocessor_settings;
+};
+}  // namespace VideoCommon