From cb51ab719741efc51c10fa29b2431f2bbcdc92b5 Mon Sep 17 00:00:00 2001
From: Connor McLaughlin <stenzek@gmail.com>
Date: Sat, 26 Mar 2022 22:55:01 +1000
Subject: [PATCH] Misc: Purge unused definitions

---
 src/CMakeLists.txt                    | 15 ++-------------
 src/common/CMakeLists.txt             | 20 ++++++--------------
 src/common/memory_arena.cpp           | 10 +---------
 src/common/vulkan/shader_compiler.cpp |  2 --
 src/common/window_info.h              |  1 -
 5 files changed, 9 insertions(+), 39 deletions(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index cd61d4c82..61fd8f533 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,16 +1,9 @@
-if(BUILD_LIBRETRO_CORE)
-  add_definitions("-DLIBRETRO=1")
-endif()
-
 add_subdirectory(common)
 add_subdirectory(core)
 add_subdirectory(scmversion)
+add_subdirectory(frontend-common)
 
-if(NOT BUILD_LIBRETRO_CORE)
-  add_subdirectory(frontend-common)
-endif()
-
-if(NOT BUILD_LIBRETRO_CORE AND NOT ANDROID)
+if(NOT ANDROID)
   add_subdirectory(common-tests)
   if(WIN32)
     add_subdirectory(updater)
@@ -25,10 +18,6 @@ if(BUILD_QT_FRONTEND)
   add_subdirectory(duckstation-qt)
 endif()
 
-if(BUILD_LIBRETRO_CORE)
-  add_subdirectory(duckstation-libretro)
-endif()
-
 if(BUILD_REGTEST)
   add_subdirectory(duckstation-regtest)
 endif()
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt
index a21f409f3..7fbf9e239 100644
--- a/src/common/CMakeLists.txt
+++ b/src/common/CMakeLists.txt
@@ -146,20 +146,15 @@ if(WIN32)
     d3d11/stream_buffer.h
     d3d11/texture.cpp
     d3d11/texture.h
+    gl/context_wgl.cpp
+    gl/context_wgl.h
+    thirdparty/StackWalker.cpp
+    thirdparty/StackWalker.h
+    win32_progress_callback.cpp
+    win32_progress_callback.h
     windows_headers.h
   )
   target_link_libraries(common PRIVATE d3dcompiler.lib)
-
-  if(NOT LIBRETRO)
-    target_sources(common PRIVATE
-      gl/context_wgl.cpp
-      gl/context_wgl.h
-      thirdparty/StackWalker.cpp
-      thirdparty/StackWalker.h
-      win32_progress_callback.cpp
-      win32_progress_callback.h
-    )
-  endif()
 endif()
 
 if(ANDROID)
@@ -245,9 +240,6 @@ endif()
 if(APPLE)
   # Needed for Vulkan Swap Chain.
   target_link_libraries(common PRIVATE "objc")
-endif()
-
-if(APPLE AND NOT BUILD_LIBRETRO_CORE)
   target_sources(common PRIVATE
     gl/context_agl.mm
     gl/context_agl.h
diff --git a/src/common/memory_arena.cpp b/src/common/memory_arena.cpp
index 19b225c47..c016ca216 100644
--- a/src/common/memory_arena.cpp
+++ b/src/common/memory_arena.cpp
@@ -113,15 +113,7 @@ static std::string GetFileMappingName()
 #error Unknown platform.
 #endif
 
-#ifdef LIBRETRO
-  // libretro second-instance runahead is insane, and loads a second copy of the module in the same process, which means
-  // we'd overlap the memory mapping for the "primary" core. Work around this by taking the address of this function,
-  // which should be unique per instance.
-  std::string ret(StringUtil::StdStringFromFormat("duckstation_%u_%p", pid, ((void*)&GetFileMappingName)));
-#else
-  std::string ret(StringUtil::StdStringFromFormat("duckstation_%u", pid));
-#endif
-
+  const std::string ret(StringUtil::StdStringFromFormat("duckstation_%u", pid));
   Log_InfoPrintf("File mapping name: %s", ret.c_str());
   return ret;
 }
diff --git a/src/common/vulkan/shader_compiler.cpp b/src/common/vulkan/shader_compiler.cpp
index 9340522e6..45833e5d5 100644
--- a/src/common/vulkan/shader_compiler.cpp
+++ b/src/common/vulkan/shader_compiler.cpp
@@ -124,9 +124,7 @@ bool InitializeGlslang()
     return false;
   }
 
-#ifndef LIBRETRO
   std::atexit([]() { glslang::FinalizeProcess(); });
-#endif
 
   glslang_initialized = true;
   return true;
diff --git a/src/common/window_info.h b/src/common/window_info.h
index be1cc15b4..fe27f0815 100644
--- a/src/common/window_info.h
+++ b/src/common/window_info.h
@@ -14,7 +14,6 @@ struct WindowInfo
     MacOS,
     Android,
     Display,
-    Libretro,
   };
 
   enum class SurfaceFormat