VideoBackends: Combine Initialize/Prepare and Cleanup/Shutdown methods

Also allows the work previously done in Prepare to return a failure
status.

Source/Core/VideoBackends/D3D/VideoBackend.h

@@ -17,13 +17,8 @@ class VideoBackend : public VideoBackendBase
   std::string GetName() const override;
   std::string GetDisplayName() const override;
 
-  void Video_Prepare() override;
-  void Video_Cleanup() override;
-
   void InitBackendInfo() override;
 
   unsigned int PeekMessages() override;
-
-  void* m_window_handle;
 };
 }

Source/Core/VideoBackends/D3D/main.cpp

@@ -145,32 +145,30 @@ bool VideoBackend::Initialize(void* window_handle)
   InitBackendInfo();
   InitializeShared();
 
-  m_window_handle = window_handle;
-
-  return true;
-}
-
-void VideoBackend::Video_Prepare()
-{
-  if (FAILED(D3D::Create(reinterpret_cast<HWND>(m_window_handle))))
+  if (FAILED(D3D::Create(reinterpret_cast<HWND>(window_handle))))
+  {
     PanicAlert("Failed to create D3D device.");
+    return false;
+  }
 
-  // internal interfaces
   g_renderer = std::make_unique<Renderer>();
   g_texture_cache = std::make_unique<TextureCache>();
   g_vertex_manager = std::make_unique<VertexManager>();
   g_perf_query = std::make_unique<PerfQuery>();
+
   VertexShaderCache::Init();
   PixelShaderCache::Init();
   GeometryShaderCache::Init();
   VertexShaderCache::WaitForBackgroundCompilesToComplete();
   D3D::InitUtils();
   BBox::Init();
+  return true;
 }
 
 void VideoBackend::Shutdown()
 {
-  // TODO: should be in Video_Cleanup
+  g_renderer->Shutdown();
+
   D3D::ShutdownUtils();
   PixelShaderCache::Shutdown();
   VertexShaderCache::Shutdown();
@@ -182,13 +180,8 @@ void VideoBackend::Shutdown()
   g_texture_cache.reset();
   g_renderer.reset();
 
-  D3D::Close();
-
   ShutdownShared();
-}
 
-void VideoBackend::Video_Cleanup()
-{
-  CleanupShared();
+  D3D::Close();
 }
 }

Source/Core/VideoBackends/Null/NullBackend.cpp

@@ -58,38 +58,32 @@ bool VideoBackend::Initialize(void* window_handle)
   InitializeShared();
   InitBackendInfo();
 
-  return true;
-}
-
-// This is called after Initialize() from the Core
-// Run from the graphics thread
-void VideoBackend::Video_Prepare()
-{
   g_renderer = std::make_unique<Renderer>();
   g_vertex_manager = std::make_unique<VertexManager>();
   g_perf_query = std::make_unique<PerfQuery>();
   g_framebuffer_manager = std::make_unique<FramebufferManagerBase>();
   g_texture_cache = std::make_unique<TextureCache>();
+
   VertexShaderCache::s_instance = std::make_unique<VertexShaderCache>();
   GeometryShaderCache::s_instance = std::make_unique<GeometryShaderCache>();
   PixelShaderCache::s_instance = std::make_unique<PixelShaderCache>();
+  return true;
 }
 
 void VideoBackend::Shutdown()
 {
-  ShutdownShared();
-}
+  g_renderer->Shutdown();
 
-void VideoBackend::Video_Cleanup()
-{
-  CleanupShared();
   PixelShaderCache::s_instance.reset();
   VertexShaderCache::s_instance.reset();
   GeometryShaderCache::s_instance.reset();
+
   g_texture_cache.reset();
   g_perf_query.reset();
   g_vertex_manager.reset();
   g_framebuffer_manager.reset();
   g_renderer.reset();
+
+  ShutdownShared();
 }
 }

Source/Core/VideoBackends/Null/VideoBackend.h

@@ -15,9 +15,6 @@ class VideoBackend : public VideoBackendBase
 
   std::string GetName() const override { return "Null"; }
   std::string GetDisplayName() const override { return "Null"; }
-  void Video_Prepare() override;
-  void Video_Cleanup() override;
-
   void InitBackendInfo() override;
 
   unsigned int PeekMessages() override { return 0; }

Source/Core/VideoBackends/OGL/Render.cpp

@@ -809,6 +809,7 @@ Renderer::~Renderer() = default;
 
 void Renderer::Shutdown()
 {
+  ::Renderer::Shutdown();
   g_framebuffer_manager.reset();
 
   UpdateActiveConfig();

Source/Core/VideoBackends/OGL/Render.h

@@ -84,7 +84,7 @@ public:
   ~Renderer() override;
 
   void Init();
-  void Shutdown();
+  void Shutdown() override;
 
   std::unique_ptr<AbstractTexture> CreateTexture(const TextureConfig& config) override;
   std::unique_ptr<AbstractStagingTexture>

Source/Core/VideoBackends/OGL/VideoBackend.h

@@ -17,9 +17,6 @@ class VideoBackend : public VideoBackendBase
   std::string GetName() const override;
   std::string GetDisplayName() const override;
 
-  void Video_Prepare() override;
-  void Video_Cleanup() override;
-
   void InitBackendInfo() override;
 
   unsigned int PeekMessages() override;

Source/Core/VideoBackends/OGL/main.cpp

@@ -172,23 +172,11 @@ bool VideoBackend::Initialize(void* window_handle)
   if (!GLInterface->Create(window_handle, g_ActiveConfig.stereo_mode == StereoMode::QuadBuffer))
     return false;
 
-  return true;
-}
-
-// This is called after Initialize() from the Core
-// Run from the graphics thread
-void VideoBackend::Video_Prepare()
-{
   GLInterface->MakeCurrent();
   if (!InitializeGLExtensions() || !FillBackendInfo())
-  {
-    // TODO: Handle this better. We'll likely end up crashing anyway, but this method doesn't
-    // return anything, so we can't inform the caller that startup failed.
-    return;
-  }
+    return false;
 
   g_renderer = std::make_unique<Renderer>();
-
   g_vertex_manager = std::make_unique<VertexManager>();
   g_perf_query = GetPerfQuery();
   ProgramShaderCache::Init();
@@ -197,21 +185,12 @@ void VideoBackend::Video_Prepare()
   static_cast<Renderer*>(g_renderer.get())->Init();
   TextureConverter::Init();
   BoundingBox::Init(g_renderer->GetTargetWidth(), g_renderer->GetTargetHeight());
+  return true;
 }
 
 void VideoBackend::Shutdown()
 {
-  GLInterface->Shutdown();
-  GLInterface.reset();
-  ShutdownShared();
-}
-
-void VideoBackend::Video_Cleanup()
-{
-  // The following calls are NOT Thread Safe
-  // And need to be called from the video thread
-  CleanupShared();
-  static_cast<Renderer*>(g_renderer.get())->Shutdown();
+  g_renderer->Shutdown();
   BoundingBox::Shutdown();
   TextureConverter::Shutdown();
   g_sampler_cache.reset();
@@ -221,5 +200,8 @@ void VideoBackend::Video_Cleanup()
   g_vertex_manager.reset();
   g_renderer.reset();
   GLInterface->ClearCurrent();
+  GLInterface->Shutdown();
+  GLInterface.reset();
+  ShutdownShared();
 }
 }

Source/Core/VideoBackends/Software/SWRenderer.cpp

@@ -26,15 +26,6 @@ SWRenderer::SWRenderer()
 {
 }
 
-void SWRenderer::Init()
-{
-}
-
-void SWRenderer::Shutdown()
-{
-  UpdateActiveConfig();
-}
-
 std::unique_ptr<AbstractTexture> SWRenderer::CreateTexture(const TextureConfig& config)
 {
   return std::make_unique<SW::SWTexture>(config);

Source/Core/VideoBackends/Software/SWRenderer.h

@@ -13,9 +13,6 @@ class SWRenderer : public Renderer
 public:
   SWRenderer();
 
-  static void Init();
-  static void Shutdown();
-
   std::unique_ptr<AbstractTexture> CreateTexture(const TextureConfig& config) override;
   std::unique_ptr<AbstractStagingTexture>
   CreateStagingTexture(StagingTextureType type, const TextureConfig& config) override;

Source/Core/VideoBackends/Software/SWmain.cpp

@@ -88,38 +88,8 @@ bool VideoSoftware::Initialize(void* window_handle)
 
   Clipper::Init();
   Rasterizer::Init();
-  SWRenderer::Init();
   DebugUtil::Init();
 
-  return true;
-}
-
-void VideoSoftware::Shutdown()
-{
-  SWOGLWindow::Shutdown();
-
-  ShutdownShared();
-}
-
-void VideoSoftware::Video_Cleanup()
-{
-  CleanupShared();
-
-  SWRenderer::Shutdown();
-  DebugUtil::Shutdown();
-  // The following calls are NOT Thread Safe
-  // And need to be called from the video thread
-  SWRenderer::Shutdown();
-  g_framebuffer_manager.reset();
-  g_texture_cache.reset();
-  g_perf_query.reset();
-  g_vertex_manager.reset();
-  g_renderer.reset();
-}
-
-// This is called after Video_Initialize() from the Core
-void VideoSoftware::Video_Prepare()
-{
   GLInterface->MakeCurrent();
   SWOGLWindow::s_instance->Prepare();
 
@@ -127,7 +97,22 @@ void VideoSoftware::Video_Prepare()
   g_vertex_manager = std::make_unique<SWVertexLoader>();
   g_perf_query = std::make_unique<PerfQuery>();
   g_texture_cache = std::make_unique<TextureCache>();
-  SWRenderer::Init();
+  return true;
+}
+
+void VideoSoftware::Shutdown()
+{
+  if (g_renderer)
+    g_renderer->Shutdown();
+
+  DebugUtil::Shutdown();
+  SWOGLWindow::Shutdown();
+  g_framebuffer_manager.reset();
+  g_texture_cache.reset();
+  g_perf_query.reset();
+  g_vertex_manager.reset();
+  g_renderer.reset();
+  ShutdownShared();
 }
 
 unsigned int VideoSoftware::PeekMessages()

Source/Core/VideoBackends/Software/VideoBackend.h

@@ -17,9 +17,6 @@ class VideoSoftware : public VideoBackendBase
   std::string GetName() const override;
   std::string GetDisplayName() const override;
 
-  void Video_Prepare() override;
-  void Video_Cleanup() override;
-
   void InitBackendInfo() override;
 
   unsigned int PeekMessages() override;

Source/Core/VideoBackends/Vulkan/ShaderCache.cpp

@@ -76,6 +76,9 @@ void ShaderCache::Shutdown()
     m_async_shader_compiler->StopWorkerThreads();
     m_async_shader_compiler->RetrieveWorkItems();
   }
+
+  if (g_ActiveConfig.bShaderCache && m_pipeline_cache != VK_NULL_HANDLE)
+    SavePipelineCache();
 }
 
 static bool IsStripPrimitiveTopology(VkPrimitiveTopology topology)

Source/Core/VideoBackends/Vulkan/VideoBackend.h

@@ -16,9 +16,6 @@ public:
 
   std::string GetName() const override { return "Vulkan"; }
   std::string GetDisplayName() const override { return "Vulkan (experimental)"; }
-  void Video_Prepare() override;
-  void Video_Cleanup() override;
-
   void InitBackendInfo() override;
 
   unsigned int PeekMessages() override { return 0; }

Source/Core/VideoBackends/Vulkan/main.cpp

@@ -245,22 +245,16 @@ bool VideoBackend::Initialize(void* window_handle)
   if (g_ActiveConfig.CanPrecompileUberShaders())
     g_shader_cache->PrecompileUberShaders();
 
+  // Display the name so the user knows which device was actually created.
+  INFO_LOG(VIDEO, "Vulkan Device: %s", g_vulkan_context->GetDeviceProperties().deviceName);
   return true;
 }
 
-// This is called after Initialize() from the Core
-// Run from the graphics thread
-void VideoBackend::Video_Prepare()
-{
-  // Display the name so the user knows which device was actually created
-  OSD::AddMessage(StringFromFormat("Using physical adapter %s",
-                                   g_vulkan_context->GetDeviceProperties().deviceName)
-                      .c_str(),
-                  5000);
-}
-
 void VideoBackend::Shutdown()
 {
+  if (g_renderer)
+    g_renderer->Shutdown();
+
   if (g_command_buffer_mgr)
     g_command_buffer_mgr->WaitForGPUIdle();
 
@@ -279,15 +273,4 @@ void VideoBackend::Shutdown()
   ShutdownShared();
   UnloadVulkanLibrary();
 }
-
-void VideoBackend::Video_Cleanup()
-{
-  g_command_buffer_mgr->WaitForGPUIdle();
-
-  // Save all cached pipelines out to disk for next time.
-  if (g_ActiveConfig.bShaderCache)
-    g_shader_cache->SavePipelineCache();
-
-  CleanupShared();
-}
 }