Remove non-integer IRs

Data/Sys/GameSettings/DD2.ini

@@ -18,7 +18,6 @@ EmulationIssues =
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
 SafeTextureCacheColorSamples = 512
 
 [Video_Enhancements]

Data/Sys/GameSettings/G8M.ini

@@ -21,8 +21,5 @@ EmulationIssues = Needs Efb to Ram for BBox (proper graphics).
 EFBToTextureEnable = False
 BBoxEnable = True
 
-[Video_Settings]
-EFBScale = -1
-
 [Video_Stereoscopy]
 StereoConvergence = 545

Data/Sys/GameSettings/G9S.ini

@@ -19,6 +19,6 @@ EmulationIssues = Use directx11 backend with efb scale set at 1x to deal with bl
 
 [Video_Settings]
 SafeTextureCacheColorSamples = 0
-EFBScale = 2
+InternalResolution = 1
 MSAA = 0
 MaxAnisotropy = 0

Data/Sys/GameSettings/GAL.ini

@@ -17,8 +17,5 @@ EmulationIssues =
 [ActionReplay]
 # Add action replay cheats here.
 
-[Video_Settings]
-EFBScale = -1
-
 [Video_Stereoscopy]
 StereoConvergence = 64

Data/Sys/GameSettings/GC6.ini

@@ -6,7 +6,7 @@
 [EmuState]
 # The Emulation State. 1 is worst, 5 is best, 0 is not set.
 EmulationStateId = 4
-EmulationIssues = If EFB scale is not integral, serious texture glitches occur.
+EmulationIssues =
 
 [OnLoad]
 # Add memory patches to be loaded once on boot here.
@@ -18,7 +18,4 @@ EmulationIssues = If EFB scale is not integral, serious texture glitches occur.
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
-
 SafeTextureCacheColorSamples = 0
-

Data/Sys/GameSettings/GEO.ini

@@ -21,4 +21,3 @@ EmulationIssues =
 UseXFB = True
 UseRealXFB = False
 SafeTextureCacheColorSamples = 512
-EFBScale = -1

Data/Sys/GameSettings/GF7.ini

@@ -7,7 +7,7 @@ FPRF = True
 [EmuState]
 # The Emulation State. 1 is worst, 5 is best, 0 is not set.
 EmulationStateId = 4
-EmulationIssues = EFB must be an integer (integral, 1x, 2x, 3x).
+EmulationIssues =
 
 [OnLoad]
 # Add memory patches to be loaded once on boot here.
@@ -19,8 +19,6 @@ EmulationIssues = EFB must be an integer (integral, 1x, 2x, 3x).
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
-
 SafeTextureCacheColorSamples = 512
 
 [Video_Hacks]

Data/Sys/GameSettings/GWO.ini

@@ -16,7 +16,3 @@ EmulationIssues =
 
 [ActionReplay]
 # Add action replay cheats here.
-
-[Video_Settings]
-EFBScale = -1
-

Data/Sys/GameSettings/GXX.ini

@@ -7,7 +7,7 @@ SyncGPU = True
 [EmuState]
 # The Emulation State. 1 is worst, 5 is best, 0 is not set.
 EmulationStateId = 4
-EmulationIssues = HLE music fades in and out. If EFB scale is not integral, 1x, 2x or 3x serious texture glitches occur
+EmulationIssues =
 
 [OnLoad]
 # Add memory patches to be loaded once on boot here.
@@ -19,5 +19,4 @@ EmulationIssues = HLE music fades in and out. If EFB scale is not integral, 1x,
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
 SafeTextureCacheColorSamples = 0

Data/Sys/GameSettings/GZW.ini

@@ -19,7 +19,6 @@ EmulationIssues =
 
 [Video_Settings]
 SafeTextureCacheColorSamples = 512
-EFBScale = -1
 
 [Video_Enhancements]
 ForceFiltering = False

Data/Sys/GameSettings/RFF.ini

@@ -6,7 +6,7 @@
 [EmuState]
 # The Emulation State. 1 is worst, 5 is best, 0 is not set.
 EmulationStateId = 4
-EmulationIssues = Needs integral scaling for the black lines to disappear.
+EmulationIssues =
 
 [OnLoad]
 # Add memory patches to be loaded once on boot here.
@@ -18,6 +18,4 @@ EmulationIssues = Needs integral scaling for the black lines to disappear.
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
 SafeTextureCacheColorSamples = 512
-

Data/Sys/GameSettings/RPO.ini

@@ -18,5 +18,4 @@ EmulationIssues = Jerky videos need safe cache.
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
 SafeTextureCacheColorSamples = 512

Data/Sys/GameSettings/RSF.ini

@@ -16,7 +16,3 @@ EmulationIssues =
 
 [ActionReplay]
 # Add action replay cheats here.
-
-[Video_Settings]
-EFBScale = -1
-

Data/Sys/GameSettings/S2E.ini

@@ -17,9 +17,6 @@ EmulationIssues = USB Microphone not emulated
 [ActionReplay]
 # Add action replay cheats here.
 
-[Video_Settings]
-EFBScale = -1
-
 [Video_Enhancements]
 MaxAnisotropy = 0
 ForceFiltering = False

Data/Sys/GameSettings/S72.ini

@@ -21,7 +21,6 @@ EmulationIssues =
 UseXFB = True
 UseRealXFB = False
 SafeTextureCacheColorSamples = 0
-EFBScale = -1
 
 [Video_Hacks]
 EFBToTextureEnable = False

Data/Sys/GameSettings/S75.ini

@@ -5,8 +5,8 @@
 
 [EmuState]
 # The Emulation State. 1 is worst, 5 is best, 0 is not set.
-EmulationIssues = Skip any errors at startup and use integral efb scale.
 EmulationStateId = 4
+EmulationIssues =
 
 [OnLoad]
 # Add memory patches to be loaded once on boot here.
@@ -18,6 +18,4 @@ EmulationStateId = 4
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
 SafeTextureCacheColorSamples = 512
-

Data/Sys/GameSettings/SD2.ini

@@ -18,7 +18,6 @@ EmulationIssues =
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
 SafeTextureCacheColorSamples = 512
 
 [Video_Enhancements]

Data/Sys/GameSettings/SD2J01.ini

@@ -21,7 +21,6 @@ EmulationIssues =
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
 SafeTextureCacheColorSamples = 512
 
 [Video_Enhancements]

Data/Sys/GameSettings/SDN.ini

@@ -17,9 +17,6 @@ EmulationIssues =
 [ActionReplay]
 # Add action replay cheats here.
 
-[Video_Settings]
-EFBScale = -1
-
 [Video_Enhancements]
 MaxAnisotropy = 0
 ForceFiltering = False

Data/Sys/GameSettings/SEM.ini

@@ -18,7 +18,6 @@ EmulationIssues = Enable progressive scan if the game has boot issues.
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
 SafeTextureCacheColorSamples = 0
 
 [Video_Enhancements]

Data/Sys/GameSettings/SER.ini

@@ -18,6 +18,5 @@ EmulationIssues = Enable progressive scan if the game has boot issues.
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
 SafeTextureCacheColorSamples = 0
 

Data/Sys/GameSettings/SJD.ini

@@ -18,7 +18,6 @@ EmulationIssues =
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
 SafeTextureCacheColorSamples = 512
 
 [Video_Enhancements]

Data/Sys/GameSettings/SJDJ01.ini

@@ -21,7 +21,6 @@ EmulationIssues =
 # Add action replay cheats here.
 
 [Video_Settings]
-EFBScale = -1
 SafeTextureCacheColorSamples = 512
 
 [Video_Enhancements]

Data/Sys/GameSettings/SJX.ini

@@ -17,9 +17,6 @@ EmulationIssues =
 [ActionReplay]
 # Add action replay cheats here.
 
-[Video_Settings]
-EFBScale = -1
-
 [Video_Enhancements]
 MaxAnisotropy = 0
 ForceFiltering = False

Data/Sys/GameSettings/SMO.ini

@@ -17,9 +17,6 @@ EmulationIssues =
 [ActionReplay]
 # Add action replay cheats here.
 
-[Video_Settings]
-EFBScale = -1
-
 [Video_Enhancements]
 MaxAnisotropy = 0
 ForceFiltering = False

Data/Sys/GameSettings/SNC.ini

@@ -17,9 +17,6 @@ EmulationStateId = 5
 [ActionReplay]
 # Add action replay cheats here.
 
-[Video_Settings]
-EFBScale = -1
-
 [Video_Hacks]
 EFBAccessEnable = False
 

Data/Sys/GameSettings/WR9.ini

@@ -20,7 +20,5 @@ EmulationIssues =
 [Video_Settings]
 UseXFB = True
 UseRealXFB = False
-EFBScale = -1
-
 SafeTextureCacheColorSamples = 512
 

Data/Sys/GameSettings/WRX.ini

@@ -20,7 +20,4 @@ EmulationIssues =
 [Video_Settings]
 UseXFB = True
 UseRealXFB = False
-
 SafeTextureCacheColorSamples = 512
-EFBScale = -1
-

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/SettingsFile.java

@@ -56,7 +56,7 @@ public final class SettingsFile
 	public static final String KEY_AUDIO_STRETCH = "AudioStretch";
 
 	public static final String KEY_SHOW_FPS = "ShowFPS";
-	public static final String KEY_INTERNAL_RES = "EFBScale";
+	public static final String KEY_INTERNAL_RES = "InternalResolution";
 	public static final String KEY_FSAA = "MSAA";
 	public static final String KEY_ANISOTROPY = "MaxAnisotropy";
 	public static final String KEY_POST_SHADER = "PostProcessingShader";

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

@@ -104,23 +104,19 @@
     <!-- Internal Resolution Preference -->
     <string-array name="internalResolutionEntries" translatable="false">
         <item>1x Native (640x528)</item>
-        <item>1.5x Native (960x792)</item>
         <item>2x Native (1280x1056) for 720p</item>
-        <item>2.5x Native (1600x1320)</item>
         <item>3x Native (1920x1584) for 1080p</item>
         <item>4x Native (2560x2112)</item>
         <item>5x Native (3200x2640)</item>
         <item>6x Native (3840x3168) for 4K</item>
     </string-array>
     <integer-array name="internalResolutionValues" translatable="false">
+        <item>1</item>
         <item>2</item>
         <item>3</item>
         <item>4</item>
         <item>5</item>
         <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
     </integer-array>
 
     <!-- FSAA Preference -->

Source/Core/Core/Analytics.cpp

@@ -224,10 +224,10 @@ void DolphinAnalytics::MakePerGameBuilder()
   builder.AddData("cfg-gfx-vsync", g_Config.bVSync);
   builder.AddData("cfg-gfx-aspect-ratio", g_Config.iAspectRatio);
   builder.AddData("cfg-gfx-efb-access", g_Config.bEFBAccessEnable);
-  builder.AddData("cfg-gfx-efb-scale", g_Config.iEFBScale);
   builder.AddData("cfg-gfx-efb-copy-format-changes", g_Config.bEFBEmulateFormatChanges);
   builder.AddData("cfg-gfx-efb-copy-ram", !g_Config.bSkipEFBCopyToRam);
   builder.AddData("cfg-gfx-efb-copy-scaled", g_Config.bCopyEFBScaled);
+  builder.AddData("cfg-gfx-internal-resolution", g_Config.iEFBScale);
   builder.AddData("cfg-gfx-tc-samples", g_Config.iSafeTextureCache_ColorSamples);
   builder.AddData("cfg-gfx-stereo-mode", g_Config.iStereoMode);
   builder.AddData("cfg-gfx-per-pixel-lighting", g_Config.bEnablePixelLighting);

Source/Core/Core/Config/GraphicsSettings.cpp

@@ -60,8 +60,7 @@ const ConfigInfo<bool> GFX_ENABLE_PIXEL_LIGHTING{{System::GFX, "Settings", "Enab
 const ConfigInfo<bool> GFX_FAST_DEPTH_CALC{{System::GFX, "Settings", "FastDepthCalc"}, true};
 const ConfigInfo<u32> GFX_MSAA{{System::GFX, "Settings", "MSAA"}, 1};
 const ConfigInfo<bool> GFX_SSAA{{System::GFX, "Settings", "SSAA"}, false};
-const ConfigInfo<int> GFX_EFB_SCALE{{System::GFX, "Settings", "EFBScale"},
+const ConfigInfo<int> GFX_EFB_SCALE{{System::GFX, "Settings", "InternalResolution"}, 1};
-                                    static_cast<int>(SCALE_1X)};
 const ConfigInfo<bool> GFX_TEXFMT_OVERLAY_ENABLE{{System::GFX, "Settings", "TexFmtOverlayEnable"},
                                                  false};
 const ConfigInfo<bool> GFX_TEXFMT_OVERLAY_CENTER{{System::GFX, "Settings", "TexFmtOverlayCenter"},

Source/Core/Core/ConfigLoaders/GameConfigLoader.cpp

@@ -84,7 +84,7 @@ static const INIToLocationMap& GetINIToLocationMap()
       {{"Video_Settings", "MSAA"}, {Config::GFX_MSAA.location}},
       {{"Video_Settings", "SSAA"}, {Config::GFX_SSAA.location}},
       {{"Video_Settings", "ForceTrueColor"}, {Config::GFX_ENHANCE_FORCE_TRUE_COLOR.location}},
-      {{"Video_Settings", "EFBScale"}, {Config::GFX_EFB_SCALE.location}},
+      {{"Video_Settings", "InternalResolution"}, {Config::GFX_EFB_SCALE.location}},
       {{"Video_Settings", "DisableFog"}, {Config::GFX_DISABLE_FOG.location}},
       {{"Video_Settings", "BackendMultithreading"}, {Config::GFX_BACKEND_MULTITHREADING.location}},
       {{"Video_Settings", "CommandBufferExecuteInterval"},

Source/Core/DolphinQt2/Config/Graphics/EnhancementsWidget.cpp

@@ -43,16 +43,15 @@ void EnhancementsWidget::CreateWidgets()
   auto* enhancements_layout = new QGridLayout();
   enhancements_box->setLayout(enhancements_layout);
 
-  m_ir_combo = new GraphicsChoice(
+  m_ir_combo = new GraphicsChoice({tr("Auto (Multiple of 640x528)"), tr("Native (640x528)"),
-      {tr("Auto (Window Size)"), tr("Auto (Multiple of 640x528)"), tr("Native (640x528)"),
+                                   tr("2x Native (1280x1056) for 720p"),
-       tr("1.5x Native (960x792)"), tr("2x Native (1280x1056) for 720p"),
+                                   tr("3x Native (1920x1584) for 1080p"),
-       tr("2.5x Native (1600x1320)"), tr("3x Native (1920x1584) for 1080p"),
+                                   tr("4x Native (2560x2112) for 1440p"),
-       tr("4x Native (2560x2112) for 1440p"), tr("5x Native (3200x2640)"),
+                                   tr("5x Native (3200x2640)"), tr("6x Native (3840x3168) for 4K"),
-       tr("6x Native (3840x3168) for 4K"), tr("7x Native (4480x3696)"),
+                                   tr("7x Native (4480x3696)"), tr("8x Native (5120x4224) for 5K")},
-       tr("8x Native (5120x4224) for 5K")},
+                                  Config::GFX_EFB_SCALE);
-      Config::GFX_EFB_SCALE);
 
-  if (g_Config.iEFBScale > 11)
+  if (g_Config.iEFBScale > 8)
   {
     m_ir_combo->addItem(tr("Custom"));
     m_ir_combo->setCurrentIndex(m_ir_combo->count() - 1);
@@ -221,10 +220,8 @@ void EnhancementsWidget::AddDescriptions()
   static const char* TR_INTERNAL_RESOLUTION_DESCRIPTION =
       QT_TR_NOOP("Specifies the resolution used to render at. A high resolution greatly improves "
                  "visual quality, but also greatly increases GPU load and can cause issues in "
-                 "certain games.\n\"Multiple of 640x528\" will result in a size slightly larger "
+                 "certain games. Generally speaking, the lower the internal resolution is, the "
-                 "than \"Window Size\" but yield fewer issues. Generally speaking, the lower the "
+                 "better your performance will be.\n\nIf unsure, select Native.");
-                 "internal resolution is, the better your performance will be. Auto (Window Size), "
-                 "1.5x, and 2.5x may cause issues in some games.\n\nIf unsure, select Native.");
 
   static const char* TR_ANTIALIAS_DESCRIPTION =
       QT_TR_NOOP("Reduces the amount of aliasing caused by rasterizing 3D graphics. This smooths "

Source/Core/DolphinQt2/HotkeyScheduler.cpp

@@ -207,7 +207,7 @@ void HotkeyScheduler::Run()
       if (IsHotkey(HK_INCREASE_IR))
         ++g_Config.iEFBScale;
       if (IsHotkey(HK_DECREASE_IR))
-        g_Config.iEFBScale = std::max(g_Config.iEFBScale - 1, static_cast<int>(SCALE_AUTO));
+        g_Config.iEFBScale = std::max(g_Config.iEFBScale - 1, EFB_SCALE_AUTO_INTEGRAL);
       if (IsHotkey(HK_TOGGLE_CROP))
         g_Config.bCrop = !g_Config.bCrop;
       if (IsHotkey(HK_TOGGLE_AR))

Source/Core/DolphinWX/Frame.cpp

@@ -1446,7 +1446,7 @@ void CFrame::ParseHotkeys()
   if (IsHotkey(HK_DECREASE_IR))
   {
     OSDChoice = 1;
-    if (Config::Get(Config::GFX_EFB_SCALE) > SCALE_AUTO)
+    if (Config::Get(Config::GFX_EFB_SCALE) > EFB_SCALE_AUTO_INTEGRAL)
       Config::SetCurrent(Config::GFX_EFB_SCALE, Config::Get(Config::GFX_EFB_SCALE) - 1);
   }
   if (IsHotkey(HK_TOGGLE_CROP))

Source/Core/DolphinWX/VideoConfigDiag.cpp

@@ -186,10 +186,8 @@ static wxString borderless_fullscreen_desc = wxTRANSLATE(
 static wxString internal_res_desc =
     wxTRANSLATE("Specifies the resolution used to render at. A high resolution greatly improves "
                 "visual quality, but also greatly increases GPU load and can cause issues in "
-                "certain games.\n\"Multiple of 640x528\" will result in a size slightly larger "
+                "certain games. Generally speaking, the lower the internal resolution is, the "
-                "than \"Window Size\" but yield fewer issues. Generally speaking, the lower the "
+                "better your performance will be.\n\nIf unsure, select Native.");
-                "internal resolution is, the better your performance will be. Auto (Window Size), "
-                "1.5x, and 2.5x may cause issues in some games.\n\nIf unsure, select Native.");
 static wxString efb_access_desc =
     wxTRANSLATE("Ignore any requests from the CPU to read from or write to the EFB.\nImproves "
                 "performance in some games, but might disable some gameplay-related features or "
@@ -517,27 +515,20 @@ VideoConfigDiag::VideoConfigDiag(wxWindow* parent, const std::string& title)
 
     // Internal resolution
     {
-      const wxString efbscale_choices[] = {_("Auto (Window Size)"),
+      const wxString efbscale_choices[] = {
-                                           _("Auto (Multiple of 640x528)"),
+          _("Auto (Multiple of 640x528)"),      _("Native (640x528)"),
-                                           _("Native (640x528)"),
+          _("2x Native (1280x1056) for 720p"),  _("3x Native (1920x1584) for 1080p"),
-                                           _("1.5x Native (960x792)"),
+          _("4x Native (2560x2112) for 1440p"), _("5x Native (3200x2640)"),
-                                           _("2x Native (1280x1056) for 720p"),
+          _("6x Native (3840x3168) for 4K"),    _("7x Native (4480x3696)"),
-                                           _("2.5x Native (1600x1320)"),
+          _("8x Native (5120x4224) for 5K"),    _("Custom")};
-                                           _("3x Native (1920x1584) for 1080p"),
-                                           _("4x Native (2560x2112) for 1440p"),
-                                           _("5x Native (3200x2640)"),
-                                           _("6x Native (3840x3168) for 4K"),
-                                           _("7x Native (4480x3696)"),
-                                           _("8x Native (5120x4224) for 5K"),
-                                           _("Custom")};
 
       wxChoice* const choice_efbscale = CreateChoice(
           page_enh, Config::GFX_EFB_SCALE, wxGetTranslation(internal_res_desc),
-          (vconfig.iEFBScale > 11) ? ArraySize(efbscale_choices) : ArraySize(efbscale_choices) - 1,
+          (vconfig.iEFBScale > 8) ? ArraySize(efbscale_choices) : ArraySize(efbscale_choices) - 1,
           efbscale_choices);
 
-      if (vconfig.iEFBScale > 11)
+      if (vconfig.iEFBScale > 8)
-        choice_efbscale->SetSelection(12);
+        choice_efbscale->SetSelection(9);
 
       szr_enh->Add(new wxStaticText(page_enh, wxID_ANY, _("Internal Resolution:")),
                    wxGBPosition(row, 0), wxDefaultSpan, wxALIGN_CENTER_VERTICAL);
@@ -1120,7 +1111,7 @@ void VideoConfigDiag::OnUpdateUI(wxUpdateUIEvent& ev)
   cache_hires_textures->Enable(vconfig.bHiresTextures);
 
   // Vertex rounding
-  vertex_rounding_checkbox->Enable(vconfig.iEFBScale != SCALE_1X);
+  vertex_rounding_checkbox->Enable(vconfig.iEFBScale != 1);
 
   // Repopulating the post-processing shaders can't be done from an event
   if (choice_ppshader && choice_ppshader->IsEmpty())

Source/Core/VideoBackends/D3D/PSTextureEncoder.cpp

@@ -128,10 +128,10 @@ void PSTextureEncoder::Encode(u8* dst, const EFBCopyParams& params, u32 native_w
     D3D::stateman->SetPixelConstants(m_encodeParams);
 
     // We also linear filtering for both box filtering and downsampling higher resolutions to 1x
-    // TODO: This only produces perfect downsampling for 1.5x and 2x IR, other resolution will
+    // TODO: This only produces perfect downsampling for 2x IR, other resolutions will need more
-    //       need more complex down filtering to average all pixels and produce the correct result.
+    //       complex down filtering to average all pixels and produce the correct result.
     // Also, box filtering won't be correct for anything other than 1x IR
-    if (scale_by_half || g_ActiveConfig.iEFBScale != SCALE_1X)
+    if (scale_by_half || g_ActiveConfig.iEFBScale != 1)
       D3D::SetLinearCopySampler();
     else
       D3D::SetPointCopySampler();

Source/Core/VideoBackends/OGL/TextureConverter.cpp

@@ -230,10 +230,10 @@ static void EncodeToRamUsingShader(GLuint srcTexture, u8* destAddr, u32 dst_line
   glBindTexture(GL_TEXTURE_2D_ARRAY, srcTexture);
 
   // We also linear filtering for both box filtering and downsampling higher resolutions to 1x
-  // TODO: This only produces perfect downsampling for 1.5x and 2x IR, other resolution will
+  // TODO: This only produces perfect downsampling for 2x IR, other resolutions will need more
-  //       need more complex down filtering to average all pixels and produce the correct result.
+  //       complex down filtering to average all pixels and produce the correct result.
   // Also, box filtering won't be correct for anything other than 1x IR
-  if (linearFilter || g_ActiveConfig.iEFBScale != SCALE_1X)
+  if (linearFilter || g_ActiveConfig.iEFBScale != 1)
     g_sampler_cache->BindLinearSampler(9);
   else
     g_sampler_cache->BindNearestSampler(9);

Source/Core/VideoBackends/Vulkan/TextureConverter.cpp

@@ -248,9 +248,9 @@ void TextureConverter::EncodeTextureToMemory(VkImageView src_texture, u8* dest_p
   draw.SetPushConstants(position_uniform, sizeof(position_uniform));
 
   // We also linear filtering for both box filtering and downsampling higher resolutions to 1x
-  // TODO: This only produces perfect downsampling for 1.5x and 2x IR, other resolution will
+  // TODO: This only produces perfect downsampling for 2x IR, other resolutions will need more
-  //       need more complex down filtering to average all pixels and produce the correct result.
+  //       complex down filtering to average all pixels and produce the correct result.
-  bool linear_filter = (scale_by_half && !params.depth) || g_ActiveConfig.iEFBScale != SCALE_1X;
+  bool linear_filter = (scale_by_half && !params.depth) || g_ActiveConfig.iEFBScale != 1;
   draw.SetPSSampler(0, src_texture, linear_filter ? g_object_cache->GetLinearSampler() :
                                                     g_object_cache->GetPointSampler());
 

Source/Core/VideoCommon/RenderBase.cpp

@@ -80,8 +80,7 @@ static float AspectToWidescreen(float aspect)
 }
 
 Renderer::Renderer(int backbuffer_width, int backbuffer_height)
-    : m_backbuffer_width(backbuffer_width), m_backbuffer_height(backbuffer_height),
+    : m_backbuffer_width(backbuffer_width), m_backbuffer_height(backbuffer_height)
-      m_last_efb_scale(g_ActiveConfig.iEFBScale)
 {
   FramebufferManagerBase::SetLastXfbWidth(MAX_XFB_WIDTH);
   FramebufferManagerBase::SetLastXfbHeight(MAX_XFB_HEIGHT);
@@ -134,26 +133,12 @@ void Renderer::RenderToXFB(u32 xfbAddr, const EFBRectangle& sourceRc, u32 fbStri
 
 int Renderer::EFBToScaledX(int x) const
 {
-  switch (g_ActiveConfig.iEFBScale)
+  return x * static_cast<int>(m_efb_scale);
-  {
-  case SCALE_AUTO:  // fractional
-    return FramebufferManagerBase::ScaleToVirtualXfbWidth(x, m_target_rectangle);
-
-  default:
-    return x * (int)m_efb_scale_numeratorX / (int)m_efb_scale_denominatorX;
-  };
 }
 
 int Renderer::EFBToScaledY(int y) const
 {
-  switch (g_ActiveConfig.iEFBScale)
+  return y * static_cast<int>(m_efb_scale);
-  {
-  case SCALE_AUTO:  // fractional
-    return FramebufferManagerBase::ScaleToVirtualXfbHeight(y, m_target_rectangle);
-
-  default:
-    return y * (int)m_efb_scale_numeratorY / (int)m_efb_scale_denominatorY;
-  };
 }
 
 float Renderer::EFBToScaledXf(float x) const
@@ -168,89 +153,31 @@ float Renderer::EFBToScaledYf(float y) const
 
 std::tuple<int, int> Renderer::CalculateTargetScale(int x, int y) const
 {
-  if (g_ActiveConfig.iEFBScale == SCALE_AUTO || g_ActiveConfig.iEFBScale == SCALE_AUTO_INTEGRAL)
+  return std::make_tuple(x * static_cast<int>(m_efb_scale), y * static_cast<int>(m_efb_scale));
-  {
-    return std::make_tuple(x, y);
-  }
-
-  const int scaled_x =
-      x * static_cast<int>(m_efb_scale_numeratorX) / static_cast<int>(m_efb_scale_denominatorX);
-
-  const int scaled_y =
-      y * static_cast<int>(m_efb_scale_numeratorY) / static_cast<int>(m_efb_scale_denominatorY);
-
-  return std::make_tuple(scaled_x, scaled_y);
 }
 
 // return true if target size changed
 bool Renderer::CalculateTargetSize()
 {
-  m_last_efb_scale = g_ActiveConfig.iEFBScale;
+  if (g_ActiveConfig.iEFBScale == EFB_SCALE_AUTO_INTEGRAL)
+  {
+    // Set a scale based on the window size
+    int width = FramebufferManagerBase::ScaleToVirtualXfbWidth(EFB_WIDTH, m_target_rectangle);
+    int height = FramebufferManagerBase::ScaleToVirtualXfbHeight(EFB_HEIGHT, m_target_rectangle);
+    m_efb_scale = std::max((width - 1) / EFB_WIDTH + 1, (height - 1) / EFB_HEIGHT + 1);
+  }
+  else
+  {
+    m_efb_scale = g_ActiveConfig.iEFBScale;
+  }
+
+  const u32 max_size = g_ActiveConfig.backend_info.MaxTextureSize;
+  if (max_size < EFB_WIDTH * m_efb_scale)
+    m_efb_scale = max_size / EFB_WIDTH;
 
   int new_efb_width = 0;
   int new_efb_height = 0;
-
+  std::tie(new_efb_width, new_efb_height) = CalculateTargetScale(EFB_WIDTH, EFB_HEIGHT);
-  // TODO: Ugly. Clean up
-  switch (m_last_efb_scale)
-  {
-  case SCALE_AUTO:
-  case SCALE_AUTO_INTEGRAL:
-    new_efb_width = FramebufferManagerBase::ScaleToVirtualXfbWidth(EFB_WIDTH, m_target_rectangle);
-    new_efb_height =
-        FramebufferManagerBase::ScaleToVirtualXfbHeight(EFB_HEIGHT, m_target_rectangle);
-
-    if (m_last_efb_scale == SCALE_AUTO_INTEGRAL)
-    {
-      m_efb_scale_numeratorX = m_efb_scale_numeratorY =
-          std::max((new_efb_width - 1) / EFB_WIDTH + 1, (new_efb_height - 1) / EFB_HEIGHT + 1);
-      m_efb_scale_denominatorX = m_efb_scale_denominatorY = 1;
-      new_efb_width = EFBToScaledX(EFB_WIDTH);
-      new_efb_height = EFBToScaledY(EFB_HEIGHT);
-    }
-    else
-    {
-      m_efb_scale_numeratorX = new_efb_width;
-      m_efb_scale_denominatorX = EFB_WIDTH;
-      m_efb_scale_numeratorY = new_efb_height;
-      m_efb_scale_denominatorY = EFB_HEIGHT;
-    }
-    break;
-
-  case SCALE_1X:
-    m_efb_scale_numeratorX = m_efb_scale_numeratorY = 1;
-    m_efb_scale_denominatorX = m_efb_scale_denominatorY = 1;
-    break;
-
-  case SCALE_1_5X:
-    m_efb_scale_numeratorX = m_efb_scale_numeratorY = 3;
-    m_efb_scale_denominatorX = m_efb_scale_denominatorY = 2;
-    break;
-
-  case SCALE_2X:
-    m_efb_scale_numeratorX = m_efb_scale_numeratorY = 2;
-    m_efb_scale_denominatorX = m_efb_scale_denominatorY = 1;
-    break;
-
-  case SCALE_2_5X:
-    m_efb_scale_numeratorX = m_efb_scale_numeratorY = 5;
-    m_efb_scale_denominatorX = m_efb_scale_denominatorY = 2;
-    break;
-
-  default:
-    m_efb_scale_numeratorX = m_efb_scale_numeratorY = m_last_efb_scale - 3;
-    m_efb_scale_denominatorX = m_efb_scale_denominatorY = 1;
-
-    const u32 max_size = g_ActiveConfig.backend_info.MaxTextureSize;
-    if (max_size < EFB_WIDTH * m_efb_scale_numeratorX / m_efb_scale_denominatorX)
-    {
-      m_efb_scale_numeratorX = m_efb_scale_numeratorY = (max_size / EFB_WIDTH);
-      m_efb_scale_denominatorX = m_efb_scale_denominatorY = 1;
-    }
-
-    break;
-  }
-  if (m_last_efb_scale > SCALE_AUTO_INTEGRAL)
-    std::tie(new_efb_width, new_efb_height) = CalculateTargetScale(EFB_WIDTH, EFB_HEIGHT);
 
   if (new_efb_width != m_target_width || new_efb_height != m_target_height)
   {
@@ -383,26 +310,14 @@ void Renderer::DrawDebugText()
     std::string res_text;
     switch (g_ActiveConfig.iEFBScale)
     {
-    case SCALE_AUTO:
+    case EFB_SCALE_AUTO_INTEGRAL:
-      res_text = "Auto (fractional)";
-      break;
-    case SCALE_AUTO_INTEGRAL:
       res_text = "Auto (integral)";
       break;
-    case SCALE_1X:
+    case 1:
       res_text = "Native";
       break;
-    case SCALE_1_5X:
-      res_text = "1.5x";
-      break;
-    case SCALE_2X:
-      res_text = "2x";
-      break;
-    case SCALE_2_5X:
-      res_text = "2.5x";
-      break;
     default:
-      res_text = StringFromFormat("%dx", g_ActiveConfig.iEFBScale - 3);
+      res_text = StringFromFormat("%dx", g_ActiveConfig.iEFBScale);
       break;
     }
     const char* ar_text = "";
@@ -648,7 +563,8 @@ void Renderer::SetWindowSize(int width, int height)
   height = std::max(height, 1);
 
   // Scale the window size by the EFB scale.
-  std::tie(width, height) = CalculateTargetScale(width, height);
+  if (g_ActiveConfig.iEFBScale != EFB_SCALE_AUTO_INTEGRAL)
+    std::tie(width, height) = CalculateTargetScale(width, height);
 
   float scaled_width, scaled_height;
   std::tie(scaled_width, scaled_height) = ScaleToDisplayAspectRatio(width, height);

Source/Core/VideoCommon/RenderBase.h

@@ -78,8 +78,7 @@ public:
   virtual void RestoreState() {}
   virtual void ResetAPIState() {}
   virtual void RestoreAPIState() {}
-  // Ideal internal resolution - determined by display resolution (automatic scaling) and/or a
+  // Ideal internal resolution - multiple of the native EFB resolution
-  // multiple of the native EFB resolution
   int GetTargetWidth() const { return m_target_width; }
   int GetTargetHeight() const { return m_target_height; }
   // Display resolution
@@ -170,7 +169,6 @@ protected:
   // TODO: Add functionality to reinit all the render targets when the window is resized.
   int m_backbuffer_width = 0;
   int m_backbuffer_height = 0;
-  int m_last_efb_scale = 0;
   TargetRectangle m_target_rectangle = {};
   bool m_xfb_written = false;
 
@@ -191,10 +189,7 @@ private:
   void ShutdownFrameDumping();
 
   PEControl::PixelFormat m_prev_efb_format = PEControl::INVALID_FMT;
-  unsigned int m_efb_scale_numeratorX = 1;
+  unsigned int m_efb_scale = 1;
-  unsigned int m_efb_scale_numeratorY = 1;
-  unsigned int m_efb_scale_denominatorX = 1;
-  unsigned int m_efb_scale_denominatorY = 1;
 
   // These will be set on the first call to SetWindowSize.
   int m_last_window_request_width = 0;

Source/Core/VideoCommon/VertexShaderManager.cpp

@@ -376,8 +376,7 @@ void VertexShaderManager::SetConstants()
     // NOTE: If we ever emulate antialiasing, the sample locations set by
     // BP registers 0x01-0x04 need to be considered here.
     const float pixel_center_correction = 7.0f / 12.0f - 0.5f;
-    const bool bUseVertexRounding =
+    const bool bUseVertexRounding = g_ActiveConfig.bVertexRounding && g_ActiveConfig.iEFBScale != 1;
-        g_ActiveConfig.bVertexRounding && g_ActiveConfig.iEFBScale != SCALE_1X;
     const float viewport_width = bUseVertexRounding ?
                                      (2.f * xfmem.viewport.wd) :
                                      g_renderer->EFBToScaledXf(2.f * xfmem.viewport.wd);

Source/Core/VideoCommon/VideoConfig.cpp

@@ -139,26 +139,6 @@ void VideoConfig::Refresh()
   phack.m_zfar = Config::Get(Config::GFX_PROJECTION_HACK_ZFAR);
   bPerfQueriesEnable = Config::Get(Config::GFX_PERF_QUERIES_ENABLE);
 
-  if (iEFBScale == SCALE_FORCE_INTEGRAL)
-  {
-    // Round down to multiple of native IR
-    switch (Config::GetBase(Config::GFX_EFB_SCALE))
-    {
-    case SCALE_AUTO:
-      iEFBScale = SCALE_AUTO_INTEGRAL;
-      break;
-    case SCALE_1_5X:
-      iEFBScale = SCALE_1X;
-      break;
-    case SCALE_2_5X:
-      iEFBScale = SCALE_2X;
-      break;
-    default:
-      iEFBScale = Config::GetBase(Config::GFX_EFB_SCALE);
-      break;
-    }
-  }
-
   VerifyValidity();
 }
 

Source/Core/VideoCommon/VideoConfig.h

@@ -22,6 +22,8 @@
 #define CONF_SAVETARGETS 8
 #define CONF_SAVESHADERS 16
 
+constexpr int EFB_SCALE_AUTO_INTEGRAL = 0;
+
 enum AspectMode
 {
   ASPECT_AUTO = 0,
@@ -30,17 +32,6 @@ enum AspectMode
   ASPECT_STRETCH = 3,
 };
 
-enum EFBScale
-{
-  SCALE_FORCE_INTEGRAL = -1,
-  SCALE_AUTO,
-  SCALE_AUTO_INTEGRAL,
-  SCALE_1X,
-  SCALE_1_5X,
-  SCALE_2X,
-  SCALE_2_5X,
-};
-
 enum StereoMode
 {
   STEREO_OFF = 0,
@@ -252,7 +243,7 @@ struct VideoConfig final
   {
     return backend_info.bSupportsGPUTextureDecoding && bEnableGPUTextureDecoding;
   }
-  bool UseVertexRounding() const { return bVertexRounding && iEFBScale != SCALE_1X; }
+  bool UseVertexRounding() const { return bVertexRounding && iEFBScale != 1; }
   u32 GetShaderCompilerThreads() const;
   u32 GetShaderPrecompilerThreads() const;
   bool CanPrecompileUberShaders() const;