Android: Add graphics mods support to CheatsActivity

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/cheats/model/CheatsViewModel.java

@@ -24,10 +24,13 @@ public class CheatsViewModel extends ViewModel
   private final MutableLiveData<Integer> mGeckoCheatsDownloadedEvent = new MutableLiveData<>(null);
   private final MutableLiveData<Boolean> mOpenDetailsViewEvent = new MutableLiveData<>(false);
 
+  private GraphicsModGroup mGraphicsModGroup;
+  private ArrayList<GraphicsMod> mGraphicsMods;
   private ArrayList<PatchCheat> mPatchCheats;
   private ArrayList<ARCheat> mARCheats;
   private ArrayList<GeckoCheat> mGeckoCheats;
 
+  private boolean mGraphicsModsNeedSaving = false;
   private boolean mPatchCheatsNeedSaving = false;
   private boolean mARCheatsNeedSaving = false;
   private boolean mGeckoCheatsNeedSaving = false;
@@ -37,13 +40,23 @@ public class CheatsViewModel extends ViewModel
     if (mLoaded)
       return;
 
+    mGraphicsModGroup = GraphicsModGroup.load(gameID);
+    mGraphicsMods = new ArrayList<>();
+    Collections.addAll(mGraphicsMods, mGraphicsModGroup.getMods());
+
     mPatchCheats = new ArrayList<>();
     Collections.addAll(mPatchCheats, PatchCheat.loadCodes(gameID, revision));
+
     mARCheats = new ArrayList<>();
     Collections.addAll(mARCheats, ARCheat.loadCodes(gameID, revision));
+
     mGeckoCheats = new ArrayList<>();
     Collections.addAll(mGeckoCheats, GeckoCheat.loadCodes(gameID, revision));
 
+    for (GraphicsMod mod : mGraphicsMods)
+    {
+      mod.setChangedCallback(() -> mGraphicsModsNeedSaving = true);
+    }
     for (PatchCheat cheat : mPatchCheats)
     {
       cheat.setChangedCallback(() -> mPatchCheatsNeedSaving = true);
@@ -62,6 +75,12 @@ public class CheatsViewModel extends ViewModel
 
   public void saveIfNeeded(String gameID, int revision)
   {
+    if (mGraphicsModsNeedSaving)
+    {
+      mGraphicsModGroup.save();
+      mGraphicsModsNeedSaving = false;
+    }
+
     if (mPatchCheatsNeedSaving)
     {
       PatchCheat.saveCodes(gameID, revision, mPatchCheats.toArray(new PatchCheat[0]));
@@ -280,6 +299,11 @@ public class CheatsViewModel extends ViewModel
     mOpenDetailsViewEvent.setValue(false);
   }
 
+  public ArrayList<GraphicsMod> getGraphicsMods()
+  {
+    return mGraphicsMods;
+  }
+
   public ArrayList<PatchCheat> getPatchCheats()
   {
     return mPatchCheats;

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/cheats/model/GraphicsMod.java

@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.dolphinemu.dolphinemu.features.cheats.model;
+
+import androidx.annotation.Keep;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+public class GraphicsMod extends ReadOnlyCheat
+{
+  @Keep
+  private final long mPointer;
+
+  // When a C++ GraphicsModGroup object is destroyed, it also destroys the GraphicsMods it owns.
+  // To avoid getting dangling pointers, we keep a reference to the GraphicsModGroup here.
+  @Keep
+  private final GraphicsModGroup mParent;
+
+  @Keep
+  private GraphicsMod(long pointer, GraphicsModGroup parent)
+  {
+    mPointer = pointer;
+    mParent = parent;
+  }
+
+  public boolean supportsCreator()
+  {
+    return true;
+  }
+
+  public boolean supportsNotes()
+  {
+    return true;
+  }
+
+  public boolean supportsCode()
+  {
+    return false;
+  }
+
+  @NonNull
+  public native String getName();
+
+  @NonNull
+  public native String getCreator();
+
+  @NonNull
+  public native String getNotes();
+
+  public boolean getUserDefined()
+  {
+    // Technically graphics mods can be user defined, but we don't support editing graphics mods
+    // in the GUI, and editability is what this really controls
+    return false;
+  }
+
+  public native boolean getEnabled();
+
+  @Override
+  protected native void setEnabledImpl(boolean enabled);
+}

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/cheats/model/GraphicsModGroup.java

@@ -0,0 +1,27 @@
+package org.dolphinemu.dolphinemu.features.cheats.model;
+
+import androidx.annotation.Keep;
+import androidx.annotation.NonNull;
+
+public class GraphicsModGroup
+{
+  @Keep
+  private final long mPointer;
+
+  @Keep
+  private GraphicsModGroup(long pointer)
+  {
+    mPointer = pointer;
+  }
+
+  @Override
+  public native void finalize();
+
+  @NonNull
+  public native GraphicsMod[] getMods();
+
+  public native void save();
+
+  @NonNull
+  public static native GraphicsModGroup load(String gameId);
+}

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/cheats/ui/CheatsAdapter.java

@@ -13,6 +13,7 @@ import org.dolphinemu.dolphinemu.R;
 import org.dolphinemu.dolphinemu.features.cheats.model.ARCheat;
 import org.dolphinemu.dolphinemu.features.cheats.model.CheatsViewModel;
 import org.dolphinemu.dolphinemu.features.cheats.model.GeckoCheat;
+import org.dolphinemu.dolphinemu.features.cheats.model.GraphicsMod;
 import org.dolphinemu.dolphinemu.features.cheats.model.PatchCheat;
 
 import java.util.ArrayList;
@@ -90,8 +91,8 @@ public class CheatsAdapter extends RecyclerView.Adapter<CheatItemViewHolder>
   @Override
   public int getItemCount()
   {
-    return mViewModel.getARCheats().size() + mViewModel.getGeckoCheats().size() +
-            mViewModel.getPatchCheats().size() + 7;
+    return mViewModel.getGraphicsMods().size() + mViewModel.getPatchCheats().size() +
+            mViewModel.getARCheats().size() + mViewModel.getGeckoCheats().size() + 8;
   }
 
   @Override
@@ -108,6 +109,17 @@ public class CheatsAdapter extends RecyclerView.Adapter<CheatItemViewHolder>
 
   private CheatItem getItemAt(int position)
   {
+    // Graphics mods
+
+    if (position == 0)
+      return new CheatItem(CheatItem.TYPE_HEADER, R.string.cheats_header_graphics_mod);
+    position -= 1;
+
+    ArrayList<GraphicsMod> graphicsMods = mViewModel.getGraphicsMods();
+    if (position < graphicsMods.size())
+      return new CheatItem(graphicsMods.get(position));
+    position -= graphicsMods.size();
+
     // Patches
 
     if (position == 0)

Source/Android/app/src/main/res/values/strings.xml

@@ -490,6 +490,7 @@
     <string name="cheats_header_ar">AR Codes</string>
     <string name="cheats_header_gecko">Gecko Codes</string>
     <string name="cheats_header_patch">Patches</string>
+    <string name="cheats_header_graphics_mod">Graphics Mods</string>
     <string name="cheats_add_ar">Add New AR Code</string>
     <string name="cheats_add_gecko">Add New Gecko Code</string>
     <string name="cheats_add_patch">Add New Patch</string>

Source/Android/jni/AndroidCommon/IDCache.cpp

@@ -70,6 +70,14 @@ static jclass s_patch_cheat_class;
 static jfieldID s_patch_cheat_pointer;
 static jmethodID s_patch_cheat_constructor;
 
+static jclass s_graphics_mod_group_class;
+static jfieldID s_graphics_mod_group_pointer;
+static jmethodID s_graphics_mod_group_constructor;
+
+static jclass s_graphics_mod_class;
+static jfieldID s_graphics_mod_pointer;
+static jmethodID s_graphics_mod_constructor;
+
 static jclass s_riivolution_patches_class;
 static jfieldID s_riivolution_patches_pointer;
 
@@ -331,6 +339,36 @@ jmethodID GetPatchCheatConstructor()
   return s_patch_cheat_constructor;
 }
 
+jclass GetGraphicsModClass()
+{
+  return s_graphics_mod_class;
+}
+
+jfieldID GetGraphicsModPointer()
+{
+  return s_graphics_mod_pointer;
+}
+
+jmethodID GetGraphicsModConstructor()
+{
+  return s_graphics_mod_constructor;
+}
+
+jclass GetGraphicsModGroupClass()
+{
+  return s_graphics_mod_group_class;
+}
+
+jfieldID GetGraphicsModGroupPointer()
+{
+  return s_graphics_mod_group_pointer;
+}
+
+jmethodID GetGraphicsModGroupConstructor()
+{
+  return s_graphics_mod_group_constructor;
+}
+
 jclass GetRiivolutionPatchesClass()
 {
   return s_riivolution_patches_class;
@@ -480,6 +518,23 @@ JNIEXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved)
   s_patch_cheat_constructor = env->GetMethodID(patch_cheat_class, "<init>", "(J)V");
   env->DeleteLocalRef(patch_cheat_class);
 
+  const jclass graphics_mod_group_class =
+      env->FindClass("org/dolphinemu/dolphinemu/features/cheats/model/GraphicsModGroup");
+  s_graphics_mod_group_class =
+      reinterpret_cast<jclass>(env->NewGlobalRef(graphics_mod_group_class));
+  s_graphics_mod_group_pointer = env->GetFieldID(graphics_mod_group_class, "mPointer", "J");
+  s_graphics_mod_group_constructor = env->GetMethodID(graphics_mod_group_class, "<init>", "(J)V");
+  env->DeleteLocalRef(graphics_mod_group_class);
+
+  const jclass graphics_mod_class =
+      env->FindClass("org/dolphinemu/dolphinemu/features/cheats/model/GraphicsMod");
+  s_graphics_mod_class = reinterpret_cast<jclass>(env->NewGlobalRef(graphics_mod_class));
+  s_graphics_mod_pointer = env->GetFieldID(graphics_mod_class, "mPointer", "J");
+  s_graphics_mod_constructor =
+      env->GetMethodID(graphics_mod_class, "<init>",
+                       "(JLorg/dolphinemu/dolphinemu/features/cheats/model/GraphicsModGroup;)V");
+  env->DeleteLocalRef(graphics_mod_class);
+
   const jclass riivolution_patches_class =
       env->FindClass("org/dolphinemu/dolphinemu/features/riivolution/model/RiivolutionPatches");
   s_riivolution_patches_class =
@@ -516,6 +571,8 @@ JNIEXPORT void JNI_OnUnload(JavaVM* vm, void* reserved)
   env->DeleteGlobalRef(s_ar_cheat_class);
   env->DeleteGlobalRef(s_gecko_cheat_class);
   env->DeleteGlobalRef(s_patch_cheat_class);
+  env->DeleteGlobalRef(s_graphics_mod_group_class);
+  env->DeleteGlobalRef(s_graphics_mod_class);
   env->DeleteGlobalRef(s_riivolution_patches_class);
   env->DeleteGlobalRef(s_wii_update_cb_class);
 }

Source/Android/jni/AndroidCommon/IDCache.h

@@ -69,6 +69,14 @@ jclass GetPatchCheatClass();
 jfieldID GetPatchCheatPointer();
 jmethodID GetPatchCheatConstructor();
 
+jclass GetGraphicsModGroupClass();
+jfieldID GetGraphicsModGroupPointer();
+jmethodID GetGraphicsModGroupConstructor();
+
+jclass GetGraphicsModClass();
+jfieldID GetGraphicsModPointer();
+jmethodID GetGraphicsModConstructor();
+
 jclass GetRiivolutionPatchesClass();
 jfieldID GetRiivolutionPatchesPointer();
 

Source/Android/jni/CMakeLists.txt

@@ -2,6 +2,8 @@ add_library(main SHARED
   Cheats/ARCheat.cpp
   Cheats/Cheats.h
   Cheats/GeckoCheat.cpp
+  Cheats/GraphicsMod.cpp
+  Cheats/GraphicsModGroup.cpp
   Cheats/PatchCheat.cpp
   Config/NativeConfig.cpp
   Config/PostProcessing.cpp

Source/Android/jni/Cheats/GraphicsMod.cpp

@@ -0,0 +1,53 @@
+// Copyright 2022 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <string>
+
+#include <jni.h>
+
+#include "VideoCommon/GraphicsModSystem/Config/GraphicsMod.h"
+#include "jni/AndroidCommon/AndroidCommon.h"
+#include "jni/AndroidCommon/IDCache.h"
+
+static GraphicsModConfig* GetPointer(JNIEnv* env, jobject obj)
+{
+  return reinterpret_cast<GraphicsModConfig*>(
+      env->GetLongField(obj, IDCache::GetGraphicsModPointer()));
+}
+
+extern "C" {
+
+JNIEXPORT jstring JNICALL
+Java_org_dolphinemu_dolphinemu_features_cheats_model_GraphicsMod_getName(JNIEnv* env, jobject obj)
+{
+  return ToJString(env, GetPointer(env, obj)->m_title);
+}
+
+JNIEXPORT jstring JNICALL
+Java_org_dolphinemu_dolphinemu_features_cheats_model_GraphicsMod_getCreator(JNIEnv* env,
+                                                                            jobject obj)
+{
+  return ToJString(env, GetPointer(env, obj)->m_author);
+}
+
+JNIEXPORT jstring JNICALL
+Java_org_dolphinemu_dolphinemu_features_cheats_model_GraphicsMod_getNotes(JNIEnv* env, jobject obj)
+{
+  return ToJString(env, GetPointer(env, obj)->m_description);
+}
+
+JNIEXPORT jboolean JNICALL
+Java_org_dolphinemu_dolphinemu_features_cheats_model_GraphicsMod_getEnabled(JNIEnv* env,
+                                                                            jobject obj)
+{
+  return static_cast<jboolean>(GetPointer(env, obj)->m_enabled);
+}
+
+JNIEXPORT void JNICALL
+Java_org_dolphinemu_dolphinemu_features_cheats_model_GraphicsMod_setEnabledImpl(JNIEnv* env,
+                                                                                jobject obj,
+                                                                                jboolean enabled)
+{
+  GetPointer(env, obj)->m_enabled = static_cast<bool>(enabled);
+}
+}

Source/Android/jni/Cheats/GraphicsModGroup.cpp

@@ -0,0 +1,92 @@
+// Copyright 2022 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <jni.h>
+
+#include <set>
+#include <vector>
+
+#include "VideoCommon/GraphicsModSystem/Config/GraphicsMod.h"
+#include "VideoCommon/GraphicsModSystem/Config/GraphicsModGroup.h"
+#include "jni/AndroidCommon/AndroidCommon.h"
+#include "jni/AndroidCommon/IDCache.h"
+
+static GraphicsModGroupConfig* GetPointer(JNIEnv* env, jobject obj)
+{
+  return reinterpret_cast<GraphicsModGroupConfig*>(
+      env->GetLongField(obj, IDCache::GetGraphicsModGroupPointer()));
+}
+
+jobject GraphicsModToJava(JNIEnv* env, GraphicsModConfig* mod, jobject jGraphicsModGroup)
+{
+  return env->NewObject(IDCache::GetGraphicsModClass(), IDCache::GetGraphicsModConstructor(),
+                        reinterpret_cast<jlong>(mod), jGraphicsModGroup);
+}
+
+extern "C" {
+
+JNIEXPORT void JNICALL
+Java_org_dolphinemu_dolphinemu_features_cheats_model_GraphicsModGroup_finalize(JNIEnv* env,
+                                                                               jobject obj)
+{
+  delete GetPointer(env, obj);
+}
+
+JNIEXPORT jobjectArray JNICALL
+Java_org_dolphinemu_dolphinemu_features_cheats_model_GraphicsModGroup_getMods(JNIEnv* env,
+                                                                              jobject obj)
+{
+  GraphicsModGroupConfig* mod_group = GetPointer(env, obj);
+
+  std::set<std::string> groups;
+
+  for (const GraphicsModConfig& mod : mod_group->GetMods())
+  {
+    for (const GraphicsTargetGroupConfig& group : mod.m_groups)
+      groups.insert(group.m_name);
+  }
+
+  std::vector<GraphicsModConfig*> mods;
+
+  for (GraphicsModConfig& mod : mod_group->GetMods())
+  {
+    // If no group matches the mod's features, or if the mod has no features, skip it
+    if (std::none_of(mod.m_features.begin(), mod.m_features.end(),
+                     [&groups](const GraphicsModFeatureConfig& feature) {
+                       return groups.count(feature.m_group) == 1;
+                     }))
+    {
+      continue;
+    }
+
+    mods.push_back(&mod);
+  }
+
+  const jobjectArray array =
+      env->NewObjectArray(static_cast<jsize>(mods.size()), IDCache::GetGraphicsModClass(), nullptr);
+
+  jsize i = 0;
+  for (GraphicsModConfig* mod : mods)
+    env->SetObjectArrayElement(array, i++, GraphicsModToJava(env, mod, obj));
+
+  return array;
+}
+
+JNIEXPORT void JNICALL
+Java_org_dolphinemu_dolphinemu_features_cheats_model_GraphicsModGroup_save(JNIEnv* env, jobject obj)
+{
+  GetPointer(env, obj)->Save();
+}
+
+JNIEXPORT jobject JNICALL
+Java_org_dolphinemu_dolphinemu_features_cheats_model_GraphicsModGroup_load(JNIEnv* env, jclass,
+                                                                           jstring jGameId)
+{
+  auto* mod_group = new GraphicsModGroupConfig(GetJString(env, jGameId));
+
+  mod_group->Load();
+
+  return env->NewObject(IDCache::GetGraphicsModGroupClass(),
+                        IDCache::GetGraphicsModGroupConstructor(), mod_group);
+}
+}

Source/Core/DolphinQt/Config/GraphicsModListWidget.cpp

@@ -120,24 +120,15 @@ void GraphicsModListWidget::RefreshModList()
 
   std::set<std::string> groups;
 
-  for (const auto& mod : m_mod_group.GetMods())
-  {
-    if (mod.m_groups.empty())
-      continue;
-
-    for (const auto& group : mod.m_groups)
+  for (const GraphicsModConfig& mod : m_mod_group.GetMods())
   {
+    for (const GraphicsTargetGroupConfig& group : mod.m_groups)
       groups.insert(group.m_name);
   }
-  }
 
-  for (const auto& mod : m_mod_group.GetMods())
+  for (const GraphicsModConfig& mod : m_mod_group.GetMods())
   {
-    // Group only mods shouldn't be shown
-    if (mod.m_features.empty())
-      continue;
-
-    // If the group doesn't exist in the available mod's features, skip
+    // If no group matches the mod's features, or if the mod has no features, skip it
     if (std::none_of(mod.m_features.begin(), mod.m_features.end(),
                      [&groups](const GraphicsModFeatureConfig& feature) {
                        return groups.count(feature.m_group) == 1;

Source/Core/VideoCommon/GraphicsModSystem/Config/GraphicsModGroup.cpp

@@ -168,6 +168,11 @@ const std::vector<GraphicsModConfig>& GraphicsModGroupConfig::GetMods() const
   return m_graphics_mods;
 }
 
+std::vector<GraphicsModConfig>& GraphicsModGroupConfig::GetMods()
+{
+  return m_graphics_mods;
+}
+
 GraphicsModConfig* GraphicsModGroupConfig::GetMod(const std::string& absolute_path) const
 {
   if (const auto iter = m_path_to_graphics_mod.find(absolute_path);

Source/Core/VideoCommon/GraphicsModSystem/Config/GraphicsModGroup.h

@@ -32,6 +32,7 @@ public:
   u32 GetChangeCount() const;
 
   const std::vector<GraphicsModConfig>& GetMods() const;
+  std::vector<GraphicsModConfig>& GetMods();
 
   GraphicsModConfig* GetMod(const std::string& absolute_path) const;