bind resources to shaders

src/Cafe/HW/Latte/Renderer/Metal/MetalMemoryManager.h

@@ -21,13 +21,24 @@ public:
         return m_buffers[bufferIndex];
     }
 
+    MTL::Buffer* GetBufferCache()
+    {
+        return m_bufferCache;
+    }
+
     void* GetTextureUploadBuffer(size_t size);
 
     MetalBufferAllocation GetBufferAllocation(size_t size);
 
+    // Buffer cache
+    void InitBufferCache(size_t size);
+    void UploadToBufferCache(const void* data, size_t offset, size_t size);
+    void CopyBufferCache(size_t srcOffset, size_t dstOffset, size_t size);
+
 private:
     class MetalRenderer* m_mtlr;
 
     std::vector<uint8> m_textureUploadBuffer;
     std::vector<MTL::Buffer*> m_buffers;
+    MTL::Buffer* m_bufferCache = nullptr;
 };