Vulkan: Implement a pipeline UID cache

This stores enough information to recreate the pipeline, including the
shader UIDs, blend/depth/rasterization state, primitive and vertex format.

1 files changed, 13 insertions, 0 deletions

diff --git a/Source/Core/VideoBackends/Vulkan/VertexFormat.cpp b/Source/Core/VideoBackends/Vulkan/VertexFormat.cpp
index 27c1d06199..ba67472394 100644
--- a/Source/Core/VideoBackends/Vulkan/VertexFormat.cpp
+++ b/Source/Core/VideoBackends/Vulkan/VertexFormat.cpp
@@ -53,6 +53,19 @@ VertexFormat::VertexFormat(const PortableVertexDeclaration& in_vtx_decl)
   SetupInputState();
 }
 
+VertexFormat* VertexFormat::GetOrCreateMatchingFormat(const PortableVertexDeclaration& decl)
+{
+  auto vertex_format_map = VertexLoaderManager::GetNativeVertexFormatMap();
+  auto iter = vertex_format_map->find(decl);
+  if (iter == vertex_format_map->end())
+  {
+    auto ipair = vertex_format_map->emplace(decl, std::make_unique<VertexFormat>(decl));
+    iter = ipair.first;
+  }
+
+  return static_cast<VertexFormat*>(iter->second.get());
+}
+
 void VertexFormat::MapAttributes()
 {
   m_num_attributes = 0;