Android: Use JNI for getting post-processsing shaders

The Java implementation of getting the list of post-processing
shaders only looked in the Sys folder and not the User folder.
This could be fixed in the Java implementation, but it's
simpler to just call the C++ implementation instead.

2 files changed, 26 insertions, 44 deletions

diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/PostProcessing.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/PostProcessing.java
new file mode 100644
index 0000000000..4d7ccd5032
--- /dev/null
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/PostProcessing.java
@@ -0,0 +1,15 @@
+package org.dolphinemu.dolphinemu.features.settings.model;
+
+import androidx.annotation.NonNull;
+
+public class PostProcessing
+{
+  @NonNull
+  public static native String[] getShaderList();
+
+  @NonNull
+  public static native String[] getAnaglyphShaderList();
+
+  @NonNull
+  public static native String[] getPassiveShaderList();
+}
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.java
index f23e0cf374..75c0faaa09 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.java
@@ -17,6 +17,7 @@ import org.dolphinemu.dolphinemu.features.settings.model.IntSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.LegacyBooleanSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.LegacyIntSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.LegacyStringSetting;
+import org.dolphinemu.dolphinemu.features.settings.model.PostProcessing;
 import org.dolphinemu.dolphinemu.features.settings.model.Settings;
 import org.dolphinemu.dolphinemu.features.settings.model.StringSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.WiimoteProfileStringSetting;
@@ -622,11 +623,17 @@ public final class SettingsFragmentPresenter
 
     int stereoModeValue = IntSetting.GFX_STEREO_MODE.getInt(mSettings);
     final int anaglyphMode = 3;
-    String subDir = stereoModeValue == anaglyphMode ? "Anaglyph" : null;
-    String[] shaderListEntries = getShaderList(subDir);
-    String[] shaderListValues = new String[shaderListEntries.length];
-    System.arraycopy(shaderListEntries, 0, shaderListValues, 0, shaderListEntries.length);
+    String[] shaderList = stereoModeValue == anaglyphMode ?
+            PostProcessing.getAnaglyphShaderList() : PostProcessing.getShaderList();
+
+    String[] shaderListEntries = new String[shaderList.length + 1];
+    shaderListEntries[0] = mContext.getString(R.string.off);
+    System.arraycopy(shaderList, 0, shaderListEntries, 1, shaderList.length);
+
+    String[] shaderListValues = new String[shaderList.length + 1];
     shaderListValues[0] = "";
+    System.arraycopy(shaderList, 0, shaderListValues, 1, shaderList.length);
+
     sl.add(new StringSingleChoiceSetting(mContext, StringSetting.GFX_ENHANCE_POST_SHADER,
             R.string.post_processing_shader, 0, shaderListEntries, shaderListValues));
 
@@ -664,46 +671,6 @@ public final class SettingsFragmentPresenter
     }
   }
 
-  private String[] getShaderList(String subDir)
-  {
-    try
-    {
-      String shadersPath =
-              DirectoryInitialization.getDolphinInternalDirectory() + "/Shaders";
-      if (!TextUtils.isEmpty(subDir))
-      {
-        shadersPath += "/" + subDir;
-      }
-
-      File file = new File(shadersPath);
-      File[] shaderFiles = file.listFiles();
-      if (shaderFiles != null)
-      {
-        String[] result = new String[shaderFiles.length + 1];
-        result[0] = mView.getActivity().getString(R.string.off);
-        for (int i = 0; i < shaderFiles.length; i++)
-        {
-          String name = shaderFiles[i].getName();
-          int extensionIndex = name.indexOf(".glsl");
-          if (extensionIndex > 0)
-          {
-            name = name.substring(0, extensionIndex);
-          }
-          result[i + 1] = name;
-        }
-
-        return result;
-      }
-    }
-    catch (Exception ex)
-    {
-      Log.debug("[Settings] Unable to find shader files");
-      // return empty list
-    }
-
-    return new String[]{};
-  }
-
   private void addHackSettings(ArrayList<SettingsItem> sl)
   {
     sl.add(new HeaderSetting(mContext, R.string.embedded_frame_buffer, 0));