D3D12: Support returning pipeline cache data

Source/Core/VideoBackends/D3D12/DXPipeline.cpp

@@ -156,7 +156,8 @@ static void GetD3DBlendDesc(D3D12_BLEND_DESC* desc, const BlendingState& state)
   }
 }
 
-std::unique_ptr<DXPipeline> DXPipeline::Create(const AbstractPipelineConfig& config)
+std::unique_ptr<DXPipeline> DXPipeline::Create(const AbstractPipelineConfig& config,
+                                               const void* cache_data, size_t cache_data_size)
 {
   DEBUG_ASSERT(config.vertex_shader && config.pixel_shader);
 
@@ -202,16 +203,36 @@ std::unique_ptr<DXPipeline> DXPipeline::Create(const AbstractPipelineConfig& con
         D3DCommon::GetDSVFormatForAbstractFormat(config.framebuffer_state.depth_texture_format);
   desc.SampleDesc.Count = config.framebuffer_state.samples;
   desc.NodeMask = 1;
+  desc.CachedPSO.pCachedBlob = cache_data;
+  desc.CachedPSO.CachedBlobSizeInBytes = cache_data_size;
 
   ID3D12PipelineState* pso;
   HRESULT hr = g_dx_context->GetDevice()->CreateGraphicsPipelineState(&desc, IID_PPV_ARGS(&pso));
-  CHECK(SUCCEEDED(hr), "Create PSO");
   if (FAILED(hr))
+  {
+    WARN_LOG(VIDEO, "CreateGraphicsPipelineState() %sfailed with HRESULT %08X",
+             cache_data ? "with cache data " : "", hr);
     return nullptr;
+  }
 
   const bool use_integer_rtv =
       !config.blending_state.blendenable && config.blending_state.logicopenable;
   return std::make_unique<DXPipeline>(pso, desc.pRootSignature, config.usage,
                                       GetD3DTopology(config.rasterization_state), use_integer_rtv);
 }
+
+AbstractPipeline::CacheData DXPipeline::GetCacheData() const
+{
+  ComPtr<ID3DBlob> blob;
+  HRESULT hr = m_pipeline->GetCachedBlob(&blob);
+  if (FAILED(hr))
+  {
+    WARN_LOG(VIDEO, "ID3D12Pipeline::GetCachedBlob() failed with HRESULT %08X", hr);
+    return {};
+  }
+
+  CacheData data(blob->GetBufferSize());
+  std::memcpy(data.data(), blob->GetBufferPointer(), blob->GetBufferSize());
+  return data;
+}
 }  // namespace DX12

Source/Core/VideoBackends/D3D12/DXPipeline.h

@@ -19,7 +19,8 @@ public:
              bool use_integer_rtv);
   ~DXPipeline() override;
 
-  static std::unique_ptr<DXPipeline> Create(const AbstractPipelineConfig& config);
+  static std::unique_ptr<DXPipeline> Create(const AbstractPipelineConfig& config,
+                                            const void* cache_data, size_t cache_data_size);
 
   ID3D12PipelineState* GetPipeline() const { return m_pipeline; }
   ID3D12RootSignature* GetRootSignature() const { return m_root_signature; }
@@ -27,6 +28,8 @@ public:
   D3D12_PRIMITIVE_TOPOLOGY GetPrimitiveTopology() const { return m_primitive_topology; }
   bool UseIntegerRTV() const { return m_use_integer_rtv; }
 
+  CacheData GetCacheData() const override;
+
 private:
   ID3D12PipelineState* m_pipeline;
   ID3D12RootSignature* m_root_signature;

Source/Core/VideoBackends/D3D12/Renderer.cpp

@@ -103,7 +103,7 @@ std::unique_ptr<AbstractPipeline> Renderer::CreatePipeline(const AbstractPipelin
                                                            const void* cache_data,
                                                            size_t cache_data_length)
 {
-  return DXPipeline::Create(config);
+  return DXPipeline::Create(config, cache_data, cache_data_length);
 }
 
 u16 Renderer::BBoxRead(int index)