VideoConfigDiag: Move post-processing shader list to post processor

The backends don't use this list at all, and since more than one
backend supports post-processing now, it's duplicate code.

3 files changed, 38 insertions, 2 deletions

diff --git a/Source/Core/VideoCommon/PostProcessing.cpp b/Source/Core/VideoCommon/PostProcessing.cpp
index 023b6ef8bc..71f38732e7 100644
--- a/Source/Core/VideoCommon/PostProcessing.cpp
+++ b/Source/Core/VideoCommon/PostProcessing.cpp
@@ -7,6 +7,7 @@
 
 #include "Common/CommonPaths.h"
 #include "Common/CommonTypes.h"
+#include "Common/FileSearch.h"
 #include "Common/FileUtil.h"
 #include "Common/IniFile.h"
 #include "Common/Logging/Log.h"
@@ -27,6 +28,40 @@ PostProcessingShaderImplementation::~PostProcessingShaderImplementation()
   m_timer.Stop();
 }
 
+static std::vector<std::string> GetShaders(const std::string& sub_dir = "")
+{
+  std::vector<std::string> paths =
+      Common::DoFileSearch({".glsl"}, {File::GetUserPath(D_SHADERS_IDX) + sub_dir,
+                                       File::GetSysDirectory() + SHADERS_DIR DIR_SEP + sub_dir});
+  std::vector<std::string> result;
+  for (std::string path : paths)
+  {
+    std::string name;
+    SplitPath(path, nullptr, &name, nullptr);
+    result.push_back(name);
+  }
+  return result;
+}
+
+std::vector<std::string> PostProcessingShaderImplementation::GetShaderList(APIType api_type)
+{
+  // Currently there is no differentiation between API types and shader languages.
+  // This could change in the future, hence the api_type parameter, but ideally,
+  // shaders should be compatible across backends.
+  if (api_type == APIType::OpenGL || api_type == APIType::Vulkan)
+    return GetShaders();
+
+  return {};
+}
+
+std::vector<std::string> PostProcessingShaderImplementation::GetAnaglyphShaderList(APIType api_type)
+{
+  if (api_type == APIType::OpenGL || api_type == APIType::Vulkan)
+    return GetShaders(ANAGLYPH_DIR DIR_SEP);
+
+  return {};
+}
+
 std::string PostProcessingShaderConfiguration::LoadShader(std::string shader)
 {
   // Load the shader from the configuration if there isn't one sent to us.
diff --git a/Source/Core/VideoCommon/PostProcessing.h b/Source/Core/VideoCommon/PostProcessing.h
index 02ed1b5f7b..4a51e66842 100644
--- a/Source/Core/VideoCommon/PostProcessing.h
+++ b/Source/Core/VideoCommon/PostProcessing.h
@@ -83,6 +83,9 @@ public:
   PostProcessingShaderImplementation();
   virtual ~PostProcessingShaderImplementation();
 
+  static std::vector<std::string> GetShaderList(APIType api_type);
+  static std::vector<std::string> GetAnaglyphShaderList(APIType api_type);
+
   PostProcessingShaderConfiguration* GetConfig() { return &m_config; }
 protected:
   // Timer for determining our time value
diff --git a/Source/Core/VideoCommon/VideoConfig.h b/Source/Core/VideoCommon/VideoConfig.h
index c628722a3a..eacb30d8b1 100644
--- a/Source/Core/VideoCommon/VideoConfig.h
+++ b/Source/Core/VideoCommon/VideoConfig.h
@@ -170,8 +170,6 @@ struct VideoConfig final
 
     std::vector<std::string> Adapters;  // for D3D
     std::vector<int> AAModes;
-    std::vector<std::string> PPShaders;        // post-processing shaders
-    std::vector<std::string> AnaglyphShaders;  // anaglyph shaders
 
     // TODO: merge AdapterName and Adapters array
     std::string AdapterName;  // for OpenGL