renderer_opengl: Remove non-separable path

Addresses:
https://github.com/citra-emu/citra/issues/6696
https://github.com/citra-emu/citra/issues/6871

.ci/ios.sh

@@ -1,5 +1,10 @@
 #!/bin/bash -ex
 
+# TODO: Work around pip install issues with Python 3.12 in the GitHub runner image.
+# See: https://github.com/actions/runner-images/issues/8709
+PYTHON_PATH=$(brew --prefix python@3.11)
+export PATH=$PYTHON_PATH/bin:$PYTHON_PATH/libexec/bin:$PATH
+
 mkdir build && cd build
 cmake .. -GNinja \
     -DCMAKE_BUILD_TYPE=Release \

.ci/macos.sh

@@ -1,5 +1,10 @@
 #!/bin/bash -ex
 
+# TODO: Work around pip install issues with Python 3.12 in the GitHub runner image.
+# See: https://github.com/actions/runner-images/issues/8709
+PYTHON_PATH=$(brew --prefix python@3.11)
+export PATH=$PYTHON_PATH/bin:$PYTHON_PATH/libexec/bin:$PATH
+
 mkdir build && cd build
 cmake .. -GNinja \
     -DCMAKE_BUILD_TYPE=Release \

.github/workflows/build.yml

@@ -59,7 +59,7 @@ jobs:
           name: ${{ env.OS }}-${{ env.TARGET }}
           path: artifacts/
   macos:
-    runs-on: macos-latest
+    runs-on: macos-13
     strategy:
       matrix:
         target: ["x86_64", "arm64"]
@@ -92,7 +92,7 @@ jobs:
           path: ${{ env.OS }}-${{ env.TARGET }}
           key: ${{ runner.os }}-${{ matrix.target }}-${{ github.sha }}-${{ github.run_id }}-${{ github.run_attempt }}
   macos-universal:
-    runs-on: macos-latest
+    runs-on: macos-13
     needs: macos
     env:
       OS: macos
@@ -234,7 +234,7 @@ jobs:
           name: ${{ env.OS }}-${{ env.TARGET }}
           path: src/android/app/artifacts/
   ios:
-    runs-on: macos-latest
+    runs-on: macos-13
     if: ${{ !startsWith(github.ref, 'refs/tags/') }}
     env:
       CCACHE_DIR: ${{ github.workspace }}/.ccache

CMakeLists.txt

@@ -236,7 +236,7 @@ find_package(Threads REQUIRED)
 
 if (ENABLE_QT)
     if (NOT USE_SYSTEM_QT)
-        download_qt(6.5.1)
+        download_qt(6.6.0)
     endif()
 
     find_package(Qt6 REQUIRED COMPONENTS Widgets Multimedia Concurrent)

dist/qt_themes/colorful_dark/icons/index.theme

@@ -2,7 +2,13 @@
 Name=colorful_dark
 Comment=Colorful theme (Dark style)
 Inherits=default
-Directories=16x16
- 
+Directories=16x16,48x48,256x256
+
 [16x16]
 Size=16
+
+[48x48]
+Size=48
+
+[256x256]
+Size=256

dist/qt_themes/colorful_midnight_blue/icons/index.theme

@@ -2,7 +2,13 @@
 Name=colorful_midnight_blue
 Comment=Colorful theme (Midnight Blue style)
 Inherits=default
-Directories=16x16
+Directories=16x16,48x48,256x256
 
 [16x16]
 Size=16
+
+[48x48]
+Size=48
+
+[256x256]
+Size=256

externals/CMakeLists.txt

@@ -46,11 +46,17 @@ set(CATCH_INSTALL_EXTRAS OFF CACHE BOOL "")
 add_subdirectory(catch2)
 
 # Crypto++
-set(CRYPTOPP_BUILD_DOCUMENTATION OFF CACHE BOOL "")
-set(CRYPTOPP_BUILD_TESTING OFF CACHE BOOL "")
-set(CRYPTOPP_INSTALL OFF CACHE BOOL "")
-set(CRYPTOPP_SOURCES "${CMAKE_SOURCE_DIR}/externals/cryptopp" CACHE STRING "")
-add_subdirectory(cryptopp-cmake)
+if(USE_SYSTEM_CRYPTOPP)
+    find_package(cryptopp REQUIRED)
+    add_library(cryptopp INTERFACE)
+    target_link_libraries(cryptopp INTERFACE cryptopp::cryptopp)
+else()
+    set(CRYPTOPP_BUILD_DOCUMENTATION OFF CACHE BOOL "")
+    set(CRYPTOPP_BUILD_TESTING OFF CACHE BOOL "")
+    set(CRYPTOPP_INSTALL OFF CACHE BOOL "")
+    set(CRYPTOPP_SOURCES "${CMAKE_SOURCE_DIR}/externals/cryptopp" CACHE STRING "")
+    add_subdirectory(cryptopp-cmake)
+endif()
 
 # dds-ktx
 add_library(dds-ktx INTERFACE)
@@ -228,15 +234,30 @@ else()
 endif()
 
 # ENet
-add_subdirectory(enet)
-target_include_directories(enet INTERFACE ./enet/include)
+if(USE_SYSTEM_ENET)
+    find_package(libenet REQUIRED)
+    add_library(enet INTERFACE)
+    target_link_libraries(enet INTERFACE libenet::libenet)
+else()
+    add_subdirectory(enet)
+    target_include_directories(enet INTERFACE ./enet/include)
+endif()
 
 # Cubeb
 if (ENABLE_CUBEB)
-    set(BUILD_TESTS OFF CACHE BOOL "")
-    set(BUILD_TOOLS OFF CACHE BOOL "")
-    set(BUNDLE_SPEEX ON CACHE BOOL "")
-    add_subdirectory(cubeb EXCLUDE_FROM_ALL)
+    if(USE_SYSTEM_CUBEB)
+        find_package(cubeb REQUIRED)
+        add_library(cubeb INTERFACE)
+        target_link_libraries(cubeb INTERFACE cubeb::cubeb)
+        if(TARGET cubeb::cubeb)
+            message(STATUS "Found system cubeb")
+        endif()
+    else()
+        set(BUILD_TESTS OFF CACHE BOOL "")
+        set(BUILD_TOOLS OFF CACHE BOOL "")
+        set(BUNDLE_SPEEX ON CACHE BOOL "")
+        add_subdirectory(cubeb EXCLUDE_FROM_ALL)
+    endif()
 endif()
 
 # DiscordRPC

externals/cmake-modules/CitraHandleSystemLibs.cmake

@@ -19,6 +19,9 @@ option(USE_SYSTEM_FDK_AAC_HEADERS "Use the system fdk-aac headers (instead of th
 option(USE_SYSTEM_FFMPEG_HEADERS "Use the system FFmpeg headers (instead of the bundled one)" OFF)
 option(USE_SYSTEM_GLSLANG "Use the system glslang and SPIR-V libraries (instead of the bundled ones)" OFF)
 option(USE_SYSTEM_ZSTD "Use the system Zstandard library (instead of the bundled one)" OFF)
+option(USE_SYSTEM_ENET "Use the system libenet (instead of the bundled one)" OFF)
+option(USE_SYSTEM_CRYPTOPP "Use the system cryptopp (instead of the bundled one)" OFF)
+option(USE_SYSTEM_CUBEB "Use the system cubeb (instead of the bundled one)" OFF)
 
 # Qt and MoltenVK are handled separately
 CMAKE_DEPENDENT_OPTION(DISABLE_SYSTEM_SDL2 "Disable system SDL2" OFF "USE_SYSTEM_LIBS" OFF)
@@ -37,6 +40,9 @@ CMAKE_DEPENDENT_OPTION(DISABLE_SYSTEM_FDK_AAC_HEADERS "Disable system fdk_aac" O
 CMAKE_DEPENDENT_OPTION(DISABLE_SYSTEM_FFMPEG_HEADERS "Disable system ffmpeg" OFF "USE_SYSTEM_LIBS" OFF)
 CMAKE_DEPENDENT_OPTION(DISABLE_SYSTEM_GLSLANG "Disable system glslang" OFF "USE_SYSTEM_LIBS" OFF)
 CMAKE_DEPENDENT_OPTION(DISABLE_SYSTEM_ZSTD "Disable system Zstandard" OFF "USE_SYSTEM_LIBS" OFF)
+CMAKE_DEPENDENT_OPTION(DISABLE_SYSTEM_ENET "Disable system libenet" OFF "USE_SYSTEM_LIBS" OFF)
+CMAKE_DEPENDENT_OPTION(DISABLE_SYSTEM_CRYPTOPP "Disable system cryptopp" OFF "USE_SYSTEM_LIBS" OFF)
+CMAKE_DEPENDENT_OPTION(DISABLE_SYSTEM_CUBEB "Disable system cubeb" OFF "USE_SYSTEM_LIBS" OFF)
 
 set(LIB_VAR_LIST
     SDL2
@@ -55,6 +61,9 @@ set(LIB_VAR_LIST
     FFMPEG_HEADERS
     GLSLANG
     ZSTD
+    ENET
+    CRYPTOPP
+    CUBEB
     )
 
 # First, check that USE_SYSTEM_XXX is not used with USE_SYSTEM_LIBS

externals/cmake-modules/Findcryptopp.cmake

@@ -0,0 +1,36 @@
+if(NOT CRYPTOPP_FOUND)
+    pkg_check_modules(CRYPTOPP_TMP libcrypto++)
+
+    find_path(CRYPTOPP_INCLUDE_DIRS NAMES cryptlib.h
+            PATHS
+            ${CRYPTOPP_TMP_INCLUDE_DIRS}
+            /usr/include
+            /usr/include/crypto++
+            /usr/local/include
+            /usr/local/include/crypto++
+            )
+
+    find_library(CRYPTOPP_LIBRARY_DIRS NAMES crypto++
+            PATHS
+            ${CRYPTOPP_TMP_LIBRARY_DIRS}
+            /usr/lib
+            /usr/locallib
+            )
+
+    if(CRYPTOPP_INCLUDE_DIRS AND CRYPTOPP_LIBRARY_DIRS)
+        set(CRYPTOPP_FOUND TRUE CACHE INTERNAL "Found cryptopp")
+        message(STATUS "Found cryptopp: ${CRYPTOPP_LIBRARY_DIRS}, ${CRYPTOPP_INCLUDE_DIRS}")
+    else()
+        set(CRYPTOPP_FOUND FALSE CACHE INTERNAL "Found cryptopp")
+        message(STATUS "Cryptopp not found.")
+    endif()
+endif()
+
+if(CRYPTOPP_FOUND AND NOT TARGET cryptopp::cryptopp)
+    add_library(cryptopp::cryptopp UNKNOWN IMPORTED)
+    set_target_properties(cryptopp::cryptopp PROPERTIES
+        INCLUDE_DIRECTORIES ${CRYPTOPP_INCLUDE_DIRS}
+        INTERFACE_LINK_LIBRARIES ${CRYPTOPP_LIBRARY_DIRS}
+        IMPORTED_LOCATION ${CRYPTOPP_LIBRARY_DIRS}
+        )
+endif()

externals/cmake-modules/Findlibenet.cmake

@@ -0,0 +1,34 @@
+if(NOT libenet_FOUND)
+    pkg_check_modules(ENET_TMP libenet)
+
+    find_path(libenet_INCLUDE_DIRS NAMES enet.h PATH_SUFFIXES enet
+            PATHS
+            ${ENET_TMP_INCLUDE_DIRS}
+            /usr/include
+            /usr/local/include
+            )
+
+    find_library(libenet_LIBRARY_DIRS NAMES enet
+            PATHS
+            ${ENET_TMP_LIBRARY_DIRS}
+            /usr/lib
+            /usr/local/lib
+            )
+
+    if(libenet_INCLUDE_DIRS AND libenet_LIBRARY_DIRS)
+        set(libenet_FOUND TRUE CACHE INTERNAL "Found libenet")
+        message(STATUS "Found libenet ${libenet_LIBRARY_DIRS}, ${libenet_INCLUDE_DIRS}")
+    else()
+        set(libenet_FOUND FALSE CACHE INTERNAL "Found libenet")
+        message(STATUS "Libenet not found.")
+    endif()
+endif()
+
+if(libenet_FOUND AND NOT TARGET libenet::libenet)
+    add_library(libenet::libenet UNKNOWN IMPORTED)
+    set_target_properties(libenet::libenet PROPERTIES
+            INCLUDE_DIRECTORIES ${libenet_INCLUDE_DIRS}
+            INTERFACE_LINK_LIBRARIES ${libenet_LIBRARY_DIRS}
+            IMPORTED_LOCATION ${libenet_LIBRARY_DIRS}
+            )
+endif()

src/citra_qt/game_list.cpp

@@ -258,13 +258,15 @@ void GameList::OnUpdateThemedIcons() {
     for (int i = 0; i < item_model->invisibleRootItem()->rowCount(); i++) {
         QStandardItem* child = item_model->invisibleRootItem()->child(i);
 
+        const int icon_size = IconSizes.at(UISettings::values.game_list_icon_size.GetValue());
         switch (child->data(GameListItem::TypeRole).value<GameListItemType>()) {
         case GameListItemType::InstalledDir:
-            child->setData(QIcon::fromTheme(QStringLiteral("sd_card")).pixmap(48),
+            child->setData(QIcon::fromTheme(QStringLiteral("sd_card")).pixmap(icon_size),
                            Qt::DecorationRole);
             break;
         case GameListItemType::SystemDir:
-            child->setData(QIcon::fromTheme(QStringLiteral("chip")).pixmap(48), Qt::DecorationRole);
+            child->setData(QIcon::fromTheme(QStringLiteral("chip")).pixmap(icon_size),
+                           Qt::DecorationRole);
             break;
         case GameListItemType::CustomDir: {
             const UISettings::GameDir& game_dir =
@@ -272,11 +274,12 @@ void GameList::OnUpdateThemedIcons() {
             const QString icon_name = QFileInfo::exists(game_dir.path)
                                           ? QStringLiteral("folder")
                                           : QStringLiteral("bad_folder");
-            child->setData(QIcon::fromTheme(icon_name).pixmap(48), Qt::DecorationRole);
+            child->setData(QIcon::fromTheme(icon_name).pixmap(icon_size), Qt::DecorationRole);
             break;
         }
         case GameListItemType::AddDir:
-            child->setData(QIcon::fromTheme(QStringLiteral("plus")).pixmap(48), Qt::DecorationRole);
+            child->setData(QIcon::fromTheme(QStringLiteral("plus")).pixmap(icon_size),
+                           Qt::DecorationRole);
             break;
         default:
             break;

src/citra_qt/main.cpp

@@ -2741,7 +2741,10 @@ void GMainWindow::filterBarSetChecked(bool state) {
 }
 
 void GMainWindow::UpdateUITheme() {
-    const QString default_icons = QStringLiteral(":/icons/default");
+    const QString icons_base_path = QStringLiteral(":/icons/");
+    const QString default_theme = QStringLiteral("default");
+    const QString default_theme_path = icons_base_path + default_theme;
+
     const QString& current_theme = UISettings::values.theme;
     const bool is_default_theme = current_theme == QString::fromUtf8(UISettings::themes[0].second);
     QStringList theme_paths(default_theme_paths);
@@ -2759,8 +2762,8 @@ void GMainWindow::UpdateUITheme() {
             qApp->setStyleSheet({});
             setStyleSheet({});
         }
-        theme_paths.append(default_icons);
-        QIcon::setThemeName(default_icons);
+        theme_paths.append(default_theme_path);
+        QIcon::setThemeName(default_theme);
     } else {
         const QString theme_uri(QLatin1Char{':'} + current_theme + QStringLiteral("/style.qss"));
         QFile f(theme_uri);
@@ -2772,9 +2775,9 @@ void GMainWindow::UpdateUITheme() {
             LOG_ERROR(Frontend, "Unable to set style, stylesheet file not found");
         }
 
-        const QString theme_name = QStringLiteral(":/icons/") + current_theme;
-        theme_paths.append({default_icons, theme_name});
-        QIcon::setThemeName(theme_name);
+        const QString current_theme_path = icons_base_path + current_theme;
+        theme_paths.append({default_theme_path, current_theme_path});
+        QIcon::setThemeName(current_theme);
     }
 
     QIcon::setThemeSearchPaths(theme_paths);

src/citra_qt/updater/updater.cpp

@@ -17,7 +17,7 @@
 #include "common/file_util.h"
 #include "common/logging/log.h"
 
-#ifdef Q_OS_OSX
+#ifdef Q_OS_MACOS
 #define DEFAULT_TOOL_PATH QStringLiteral("../../../../maintenancetool")
 #else
 #define DEFAULT_TOOL_PATH QStringLiteral("../maintenancetool")
@@ -102,7 +102,7 @@ QString UpdaterPrivate::ToSystemExe(QString base_path) {
         return base_path + QStringLiteral(".exe");
     else
         return base_path;
-#elif defined(Q_OS_OSX)
+#elif defined(Q_OS_MACOS)
     if (base_path.endsWith(QStringLiteral(".app")))
         base_path.truncate(base_path.lastIndexOf(QStringLiteral(".")));
     return base_path + QStringLiteral(".app/Contents/MacOS/") + QFileInfo(base_path).fileName();
@@ -112,7 +112,7 @@ QString UpdaterPrivate::ToSystemExe(QString base_path) {
 }
 
 QFileInfo UpdaterPrivate::GetMaintenanceTool() const {
-#if defined(Q_OS_UNIX) && !defined(Q_OS_OSX)
+#if defined(Q_OS_UNIX) && !defined(Q_OS_MACOS)
     const auto appimage_path = QProcessEnvironment::systemEnvironment()
                                    .value(QStringLiteral("APPIMAGE"), {})
                                    .toStdString();

src/common/CMakeLists.txt

@@ -124,6 +124,7 @@ add_library(citra_common STATIC
     serialization/boost_flat_set.h
     serialization/boost_small_vector.hpp
     serialization/boost_vector.hpp
+    static_lru_cache.h
     string_literal.h
     string_util.cpp
     string_util.h

src/common/file_util.cpp

@@ -1155,6 +1155,43 @@ std::size_t IOFile::ReadImpl(void* data, std::size_t length, std::size_t data_si
     return std::fread(data, data_size, length, m_file);
 }
 
+#ifdef _WIN32
+static std::size_t pread(int fd, void* buf, size_t count, uint64_t offset) {
+    long unsigned int read_bytes = 0;
+    OVERLAPPED overlapped = {0};
+    HANDLE file = reinterpret_cast<HANDLE>(_get_osfhandle(fd));
+
+    overlapped.OffsetHigh = static_cast<uint32_t>(offset >> 32);
+    overlapped.Offset = static_cast<uint32_t>(offset & 0xFFFF'FFFFLL);
+    SetLastError(0);
+    bool ret = ReadFile(file, buf, static_cast<uint32_t>(count), &read_bytes, &overlapped);
+
+    if (!ret && GetLastError() != ERROR_HANDLE_EOF) {
+        errno = GetLastError();
+        return std::numeric_limits<std::size_t>::max();
+    }
+    return read_bytes;
+}
+#else
+#define pread ::pread
+#endif
+
+std::size_t IOFile::ReadAtImpl(void* data, std::size_t length, std::size_t data_size,
+                               std::size_t offset) {
+    if (!IsOpen()) {
+        m_good = false;
+        return std::numeric_limits<std::size_t>::max();
+    }
+
+    if (length == 0) {
+        return 0;
+    }
+
+    DEBUG_ASSERT(data != nullptr);
+
+    return pread(fileno(m_file), data, data_size * length, offset);
+}
+
 std::size_t IOFile::WriteImpl(const void* data, std::size_t length, std::size_t data_size) {
     if (!IsOpen()) {
         m_good = false;

src/common/file_util.h

@@ -294,6 +294,18 @@ public:
         return items_read;
     }
 
+    template <typename T>
+    std::size_t ReadAtArray(T* data, std::size_t length, std::size_t offset) {
+        static_assert(std::is_trivially_copyable_v<T>,
+                      "Given array does not consist of trivially copyable objects");
+
+        std::size_t items_read = ReadAtImpl(data, length, sizeof(T), offset);
+        if (items_read != length)
+            m_good = false;
+
+        return items_read;
+    }
+
     template <typename T>
     std::size_t WriteArray(const T* data, std::size_t length) {
         static_assert(std::is_trivially_copyable_v<T>,
@@ -312,6 +324,12 @@ public:
         return ReadArray(reinterpret_cast<char*>(data), length);
     }
 
+    template <typename T>
+    std::size_t ReadAtBytes(T* data, std::size_t length, std::size_t offset) {
+        static_assert(std::is_trivially_copyable_v<T>, "T must be trivially copyable");
+        return ReadAtArray(reinterpret_cast<char*>(data), length, offset);
+    }
+
     template <typename T>
     std::size_t WriteBytes(const T* data, std::size_t length) {
         static_assert(std::is_trivially_copyable_v<T>, "T must be trivially copyable");
@@ -363,6 +381,8 @@ public:
 
 private:
     std::size_t ReadImpl(void* data, std::size_t length, std::size_t data_size);
+    std::size_t ReadAtImpl(void* data, std::size_t length, std::size_t data_size,
+                           std::size_t offset);
     std::size_t WriteImpl(const void* data, std::size_t length, std::size_t data_size);
 
     bool Open();

src/common/static_lru_cache.h

@@ -0,0 +1,113 @@
+// Modified version of: https://www.boost.org/doc/libs/1_79_0/boost/compute/detail/lru_cache.hpp
+// Most important change is the use of an array instead of a map, so that elements are
+// statically allocated. The insert and get methods have been merged into the request method.
+// Original license:
+//
+//---------------------------------------------------------------------------//
+// Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
+//
+// Distributed under the Boost Software License, Version 1.0
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt
+//
+// See http://boostorg.github.com/compute for more information.
+//---------------------------------------------------------------------------//
+#pragma once
+
+#include <array>
+#include <list>
+#include <tuple>
+#include <utility>
+
+namespace Common {
+
+// a cache which evicts the least recently used item when it is full
+// the cache elements are statically allocated.
+template <class Key, class Value, size_t Size>
+class StaticLRUCache {
+public:
+    using key_type = Key;
+    using value_type = Value;
+    using list_type = std::list<std::pair<Key, size_t>>;
+    using array_type = std::array<Value, Size>;
+
+    StaticLRUCache() = default;
+
+    ~StaticLRUCache() = default;
+
+    size_t size() const {
+        return m_list.size();
+    }
+
+    constexpr size_t capacity() const {
+        return m_array.size();
+    }
+
+    bool empty() const {
+        return m_list.empty();
+    }
+
+    bool contains(const key_type& key) const {
+        return find(key) != m_list.end();
+    }
+
+    // Requests an element from the cache. If it is not found,
+    // the element is inserted using its key.
+    // Returns whether the element was present in the cache
+    // and a reference to the element itself.
+    std::pair<bool, value_type&> request(const key_type& key) {
+        // lookup value in the cache
+        auto i = find(key);
+        if (i == m_list.cend()) {
+            size_t next_index = size();
+            // insert item into the cache, but first check if it is full
+            if (next_index >= capacity()) {
+                // cache is full, evict the least recently used item
+                next_index = evict();
+            }
+
+            // insert the new item
+            m_list.push_front(std::make_pair(key, next_index));
+            return std::pair<bool, value_type&>(false, m_array[next_index]);
+        }
+        // return the value, but first update its place in the most
+        // recently used list
+        if (i != m_list.cbegin()) {
+            // move item to the front of the most recently used list
+            auto backup = *i;
+            m_list.erase(i);
+            m_list.push_front(backup);
+
+            // return the value
+            return std::pair<bool, value_type&>(true, m_array[backup.second]);
+        } else {
+            // the item is already at the front of the most recently
+            // used list so just return it
+            return std::pair<bool, value_type&>(true, m_array[i->second]);
+        }
+    }
+
+    void clear() {
+        m_list.clear();
+    }
+
+private:
+    typename list_type::const_iterator find(const key_type& key) const {
+        return std::find_if(m_list.cbegin(), m_list.cend(),
+                            [&key](const auto& el) { return el.first == key; });
+    }
+
+    size_t evict() {
+        // evict item from the end of most recently used list
+        typename list_type::iterator i = --m_list.end();
+        size_t evicted_index = i->second;
+        m_list.erase(i);
+        return evicted_index;
+    }
+
+private:
+    array_type m_array;
+    list_type m_list;
+};
+
+} // namespace Common

src/core/file_sys/file_backend.h

@@ -86,6 +86,20 @@ public:
      */
     virtual void Flush() const = 0;
 
+    /**
+     * Whether the backend supports cached reads.
+     */
+    virtual bool AllowsCachedReads() const {
+        return false;
+    }
+
+    /**
+     * Whether the cache is ready for a specified offset and length.
+     */
+    virtual bool CacheReady(std::size_t file_offset, std::size_t length) {
+        return false;
+    }
+
 protected:
     std::unique_ptr<DelayGenerator> delay_generator;
 

src/core/file_sys/ivfc_archive.h

@@ -131,6 +131,14 @@ public:
     }
     void Flush() const override {}
 
+    bool AllowsCachedReads() const override {
+        return romfs_file->AllowsCachedReads();
+    }
+
+    bool CacheReady(std::size_t file_offset, std::size_t length) override {
+        return romfs_file->CacheReady(file_offset, length);
+    }
+
 private:
     std::shared_ptr<RomFSReader> romfs_file;
 

src/core/file_sys/layered_fs.h

@@ -53,6 +53,14 @@ public:
 
     bool DumpRomFS(const std::string& target_path);
 
+    bool AllowsCachedReads() const override {
+        return false;
+    }
+
+    bool CacheReady(std::size_t file_offset, std::size_t length) override {
+        return false;
+    }
+
 private:
     struct File;
     struct Directory {

src/core/file_sys/romfs_reader.cpp

@@ -1,4 +1,5 @@
 #include <algorithm>
+#include <vector>
 #include <cryptopp/aes.h>
 #include <cryptopp/modes.h>
 #include "common/archives.h"
@@ -9,17 +10,102 @@ SERIALIZE_EXPORT_IMPL(FileSys::DirectRomFSReader)
 namespace FileSys {
 
 std::size_t DirectRomFSReader::ReadFile(std::size_t offset, std::size_t length, u8* buffer) {
+    length = std::min(length, static_cast<std::size_t>(data_size) - offset);
     if (length == 0)
         return 0; // Crypto++ does not like zero size buffer
-    file.Seek(file_offset + offset, SEEK_SET);
-    std::size_t read_length = std::min(length, static_cast<std::size_t>(data_size) - offset);
-    read_length = file.ReadBytes(buffer, read_length);
-    if (is_encrypted) {
-        CryptoPP::CTR_Mode<CryptoPP::AES>::Decryption d(key.data(), key.size(), ctr.data());
-        d.Seek(crypto_offset + offset);
-        d.ProcessData(buffer, buffer, read_length);
+
+    const auto segments = BreakupRead(offset, length);
+    size_t read_progress = 0;
+
+    // Skip cache if the read is too big
+    if (segments.size() == 1 && segments[0].second > cache_line_size) {
+        length = file.ReadAtBytes(buffer, length, file_offset + offset);
+        if (is_encrypted) {
+            CryptoPP::CTR_Mode<CryptoPP::AES>::Decryption d(key.data(), key.size(), ctr.data());
+            d.Seek(crypto_offset + offset);
+            d.ProcessData(buffer, buffer, length);
+        }
+        // LOG_INFO(Service_FS, "Cache SKIP: offset={}, length={}", offset, length);
+        return length;
     }
-    return read_length;
+
+    // TODO(PabloMK7): Make cache thread safe, read the comment in CacheReady function.
+    // std::unique_lock<std::shared_mutex> read_guard(cache_mutex);
+    for (const auto& seg : segments) {
+        size_t read_size = cache_line_size;
+        size_t page = OffsetToPage(seg.first);
+        // Check if segment is in cache
+        auto cache_entry = cache.request(page);
+        if (!cache_entry.first) {
+            // If not found, read from disk and cache the data
+            read_size = file.ReadAtBytes(cache_entry.second.data(), read_size, file_offset + page);
+            if (is_encrypted && read_size) {
+                CryptoPP::CTR_Mode<CryptoPP::AES>::Decryption d(key.data(), key.size(), ctr.data());
+                d.Seek(crypto_offset + page);
+                d.ProcessData(cache_entry.second.data(), cache_entry.second.data(), read_size);
+            }
+            // LOG_INFO(Service_FS, "Cache MISS: page={}, length={}, into={}", page, seg.second,
+            //          (seg.first - page));
+        } else {
+            // LOG_INFO(Service_FS, "Cache HIT: page={}, length={}, into={}", page, seg.second,
+            //          (seg.first - page));
+        }
+        size_t copy_amount =
+            (read_size > (seg.first - page))
+                ? std::min((seg.first - page) + seg.second, read_size) - (seg.first - page)
+                : 0;
+        std::memcpy(buffer + read_progress, cache_entry.second.data() + (seg.first - page),
+                    copy_amount);
+        read_progress += copy_amount;
+    }
+    return read_progress;
+}
+
+bool DirectRomFSReader::AllowsCachedReads() const {
+    return true;
+}
+
+bool DirectRomFSReader::CacheReady(std::size_t file_offset, std::size_t length) {
+    auto segments = BreakupRead(file_offset, length);
+    if (segments.size() == 1 && segments[0].second > cache_line_size) {
+        return false;
+    } else {
+        // TODO(PabloMK7): Since the LRU cache is not thread safe, a lock must be used.
+        // However, this completely breaks the point of using a cache, because
+        // smaller reads may be blocked by bigger reads. For now, always return
+        // data being in cache to prevent the need of a lock, and only read data
+        // asynchronously if it is too big to use the cache.
+        /*
+        std::shared_lock<std::shared_mutex> read_guard(cache_mutex);
+        for (auto it = segments.begin(); it != segments.end(); it++) {
+            if (!cache.contains(OffsetToPage(it->first)))
+                return false;
+        }
+        */
+        return true;
+    }
+}
+
+std::vector<std::pair<std::size_t, std::size_t>> DirectRomFSReader::BreakupRead(
+    std::size_t offset, std::size_t length) {
+
+    std::vector<std::pair<std::size_t, std::size_t>> ret;
+
+    // Reads bigger than the cache line size will probably never hit again
+    if (length > cache_line_size) {
+        ret.push_back(std::make_pair(offset, length));
+        return ret;
+    }
+
+    size_t curr_offset = offset;
+    while (length) {
+        size_t next_page = OffsetToPage(curr_offset + cache_line_size);
+        size_t curr_page_len = std::min(length, next_page - curr_offset);
+        ret.push_back(std::make_pair(curr_offset, curr_page_len));
+        curr_offset = next_page;
+        length -= curr_page_len;
+    }
+    return ret;
 }
 
 } // namespace FileSys

src/core/file_sys/romfs_reader.h

@@ -1,11 +1,14 @@
 #pragma once
 
 #include <array>
+#include <shared_mutex>
 #include <boost/serialization/array.hpp>
 #include <boost/serialization/base_object.hpp>
 #include <boost/serialization/export.hpp>
+#include "common/alignment.h"
 #include "common/common_types.h"
 #include "common/file_util.h"
+#include "common/static_lru_cache.h"
 
 namespace FileSys {
 
@@ -18,6 +21,8 @@ public:
 
     virtual std::size_t GetSize() const = 0;
     virtual std::size_t ReadFile(std::size_t offset, std::size_t length, u8* buffer) = 0;
+    virtual bool AllowsCachedReads() const = 0;
+    virtual bool CacheReady(std::size_t file_offset, std::size_t length) = 0;
 
 private:
     template <class Archive>
@@ -48,6 +53,10 @@ public:
 
     std::size_t ReadFile(std::size_t offset, std::size_t length, u8* buffer) override;
 
+    bool AllowsCachedReads() const override;
+
+    bool CacheReady(std::size_t file_offset, std::size_t length) override;
+
 private:
     bool is_encrypted;
     FileUtil::IOFile file;
@@ -57,8 +66,23 @@ private:
     u64 crypto_offset;
     u64 data_size;
 
+    // Total cache size: 128KB
+    static constexpr size_t cache_line_size = (1 << 13); // About 8KB
+    static constexpr size_t cache_line_count = 16;
+
+    Common::StaticLRUCache<std::size_t, std::array<u8, cache_line_size>, cache_line_count> cache;
+    // TODO(PabloMK7): Make cache thread safe, read the comment in CacheReady function.
+    // std::shared_mutex cache_mutex;
+
     DirectRomFSReader() = default;
 
+    std::size_t OffsetToPage(std::size_t offset) {
+        return Common::AlignDown<std::size_t>(offset, cache_line_size);
+    }
+
+    std::vector<std::pair<std::size_t, std::size_t>> BreakupRead(std::size_t offset,
+                                                                 std::size_t length);
+
     template <class Archive>
     void serialize(Archive& ar, const unsigned int) {
         ar& boost::serialization::base_object<RomFSReader>(*this);

src/core/hle/kernel/hle_ipc.h

@@ -221,6 +221,13 @@ public:
         return session;
     }
 
+    /**
+     * Returns the client thread that made the service request.
+     */
+    std::shared_ptr<Thread> ClientThread() const {
+        return thread;
+    }
+
     class WakeupCallback {
     public:
         virtual ~WakeupCallback() = default;

src/core/hle/service/fs/file.cpp

@@ -57,7 +57,6 @@ void File::Read(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp(ctx);
     u64 offset = rp.Pop<u64>();
     u32 length = rp.Pop<u32>();
-    auto& buffer = rp.PopMappedBuffer();
     LOG_TRACE(Service_FS, "Read {}: offset=0x{:x} length=0x{:08X}", GetName(), offset, length);
 
     const FileSessionSlot* file = GetSessionData(ctx.Session());
@@ -76,22 +75,94 @@ void File::Read(Kernel::HLERequestContext& ctx) {
                   offset, length, backend->GetSize());
     }
 
-    IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
+    // Conventional reading if the backend does not support cache.
+    if (!backend->AllowsCachedReads()) {
+        auto& buffer = rp.PopMappedBuffer();
+        IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
+        std::unique_ptr<u8*> data = std::make_unique<u8*>(static_cast<u8*>(operator new(length)));
+        const auto read = backend->Read(offset, length, *data);
+        if (read.Failed()) {
+            rb.Push(read.Code());
+            rb.Push<u32>(0);
+        } else {
+            buffer.Write(*data, 0, *read);
+            rb.Push(RESULT_SUCCESS);
+            rb.Push<u32>(static_cast<u32>(*read));
+        }
+        rb.PushMappedBuffer(buffer);
 
-    std::vector<u8> data(length);
-    ResultVal<std::size_t> read = backend->Read(offset, data.size(), data.data());
-    if (read.Failed()) {
-        rb.Push(read.Code());
-        rb.Push<u32>(0);
-    } else {
-        buffer.Write(data.data(), 0, *read);
-        rb.Push(RESULT_SUCCESS);
-        rb.Push<u32>(static_cast<u32>(*read));
+        std::chrono::nanoseconds read_timeout_ns{backend->GetReadDelayNs(length)};
+        ctx.SleepClientThread("file::read", read_timeout_ns, nullptr);
+        return;
     }
-    rb.PushMappedBuffer(buffer);
 
-    std::chrono::nanoseconds read_timeout_ns{backend->GetReadDelayNs(length)};
-    ctx.SleepClientThread("file::read", read_timeout_ns, nullptr);
+    struct AsyncData {
+        // Input
+        u32 length;
+        u64 offset;
+        std::chrono::steady_clock::time_point pre_timer;
+        bool cache_ready;
+
+        // Output
+        ResultCode ret{0};
+        Kernel::MappedBuffer* buffer;
+        std::unique_ptr<u8*> data;
+        size_t read_size;
+    };
+
+    auto async_data = std::make_shared<AsyncData>();
+    async_data->buffer = &rp.PopMappedBuffer();
+    async_data->length = length;
+    async_data->offset = offset;
+    async_data->cache_ready = backend->CacheReady(offset, length);
+    if (!async_data->cache_ready) {
+        async_data->pre_timer = std::chrono::steady_clock::now();
+    }
+
+    // LOG_DEBUG(Service_FS, "cache={}, offset={}, length={}", cache_ready, offset, length);
+    ctx.RunAsync(
+        [this, async_data](Kernel::HLERequestContext& ctx) {
+            async_data->data =
+                std::make_unique<u8*>(static_cast<u8*>(operator new(async_data->length)));
+            const auto read =
+                backend->Read(async_data->offset, async_data->length, *async_data->data);
+            if (read.Failed()) {
+                async_data->ret = read.Code();
+                async_data->read_size = 0;
+            } else {
+                async_data->ret = RESULT_SUCCESS;
+                async_data->read_size = *read;
+            }
+
+            const auto read_delay = static_cast<s64>(backend->GetReadDelayNs(async_data->length));
+            if (!async_data->cache_ready) {
+                const auto time_took = std::chrono::duration_cast<std::chrono::nanoseconds>(
+                                           std::chrono::steady_clock::now() - async_data->pre_timer)
+                                           .count();
+                /*
+                if (time_took > read_delay) {
+                    LOG_DEBUG(Service_FS, "Took longer! length={}, time_took={}, read_delay={}",
+                              async_data->length, time_took, read_delay);
+                }
+                */
+                return static_cast<s64>((read_delay > time_took) ? (read_delay - time_took) : 0);
+            } else {
+                return static_cast<s64>(read_delay);
+            }
+        },
+        [async_data](Kernel::HLERequestContext& ctx) {
+            IPC::RequestBuilder rb(ctx, 0x0802, 2, 2);
+            if (async_data->ret.IsError()) {
+                rb.Push(async_data->ret);
+                rb.Push<u32>(0);
+            } else {
+                async_data->buffer->Write(*async_data->data, 0, async_data->read_size);
+                rb.Push(RESULT_SUCCESS);
+                rb.Push<u32>(static_cast<u32>(async_data->read_size));
+            }
+            rb.PushMappedBuffer(*async_data->buffer);
+        },
+        !async_data->cache_ready);
 }
 
 void File::Write(Kernel::HLERequestContext& ctx) {

src/core/hle/service/fs/fs_user.cpp

@@ -670,6 +670,26 @@ void FS_USER::GetFormatInfo(Kernel::HLERequestContext& ctx) {
     rb.Push<bool>(format_info->duplicate_data != 0);
 }
 
+void FS_USER::GetProductInfo(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx);
+
+    u32 process_id = rp.Pop<u32>();
+
+    LOG_DEBUG(Service_FS, "called, process_id={}", process_id);
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(6, 0);
+
+    const auto product_info = GetProductInfo(process_id);
+    if (!product_info.has_value()) {
+        rb.Push(ResultCode(FileSys::ErrCodes::ArchiveNotMounted, ErrorModule::FS,
+                           ErrorSummary::NotFound, ErrorLevel::Status));
+        return;
+    }
+
+    rb.Push(RESULT_SUCCESS);
+    rb.PushRaw<ProductInfo>(product_info.value());
+}
+
 void FS_USER::GetProgramLaunchInfo(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp(ctx);
     const auto process_id = rp.Pop<u32>();
@@ -687,8 +707,20 @@ void FS_USER::GetProgramLaunchInfo(Kernel::HLERequestContext& ctx) {
         return;
     }
 
+    ProgramInfo program_info = program_info_result.Unwrap();
+
+    // Always report the launched program mediatype is SD if the friends module is requesting this
+    // information and the media type is game card. Otherwise, friends will append a "romid" field
+    // to the NASC request with a cartridge unique identifier. Using a dump of a game card and the
+    // game card itself at the same time online is known to have caused issues in the past.
+    auto process = ctx.ClientThread()->owner_process.lock();
+    if (process && process->codeset->name == "friends" &&
+        program_info.media_type == MediaType::GameCard) {
+        program_info.media_type = MediaType::SDMC;
+    }
+
     rb.Push(RESULT_SUCCESS);
-    rb.PushRaw(program_info_result.Unwrap());
+    rb.PushRaw<ProgramInfo>(program_info);
 }
 
 void FS_USER::ObsoletedCreateExtSaveData(Kernel::HLERequestContext& ctx) {
@@ -775,12 +807,12 @@ void FS_USER::AddSeed(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
 }
 
-void FS_USER::SetSaveDataSecureValue(Kernel::HLERequestContext& ctx) {
+void FS_USER::ObsoletedSetSaveDataSecureValue(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp(ctx);
-    u64 value = rp.Pop<u64>();
-    u32 secure_value_slot = rp.Pop<u32>();
-    u32 unique_id = rp.Pop<u32>();
-    u8 title_variation = rp.Pop<u8>();
+    const u64 value = rp.Pop<u64>();
+    const u32 secure_value_slot = rp.Pop<u32>();
+    const u32 unique_id = rp.Pop<u32>();
+    const u8 title_variation = rp.Pop<u8>();
 
     // TODO: Generate and Save the Secure Value
 
@@ -794,12 +826,11 @@ void FS_USER::SetSaveDataSecureValue(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
 }
 
-void FS_USER::GetSaveDataSecureValue(Kernel::HLERequestContext& ctx) {
+void FS_USER::ObsoletedGetSaveDataSecureValue(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp(ctx);
-
-    u32 secure_value_slot = rp.Pop<u32>();
-    u32 unique_id = rp.Pop<u32>();
-    u8 title_variation = rp.Pop<u8>();
+    const u32 secure_value_slot = rp.Pop<u32>();
+    const u32 unique_id = rp.Pop<u32>();
+    const u8 title_variation = rp.Pop<u8>();
 
     LOG_WARNING(
         Service_FS,
@@ -816,7 +847,77 @@ void FS_USER::GetSaveDataSecureValue(Kernel::HLERequestContext& ctx) {
     rb.Push<u64>(0);      // the secure value
 }
 
-void FS_USER::Register(u32 process_id, u64 program_id, const std::string& filepath) {
+void FS_USER::SetThisSaveDataSecureValue(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx);
+    const u32 secure_value_slot = rp.Pop<u32>();
+    const u64 value = rp.Pop<u64>();
+
+    // TODO: Generate and Save the Secure Value
+
+    LOG_WARNING(Service_FS, "(STUBBED) called, value=0x{:016x} secure_value_slot=0x{:08X}", value,
+                secure_value_slot);
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+
+    rb.Push(RESULT_SUCCESS);
+}
+
+void FS_USER::GetThisSaveDataSecureValue(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx);
+    const u32 secure_value_slot = rp.Pop<u32>();
+
+    LOG_WARNING(Service_FS, "(STUBBED) called secure_value_slot=0x{:08X}", secure_value_slot);
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(5, 0);
+
+    rb.Push(RESULT_SUCCESS);
+
+    // TODO: Implement Secure Value Lookup & Generation
+
+    rb.Push<bool>(false); // indicates that the secure value doesn't exist
+    rb.Push<bool>(false); // looks like a boolean value, purpose unknown
+    rb.Push<u64>(0);      // the secure value
+}
+
+void FS_USER::SetSaveDataSecureValue(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx);
+    const auto archive_handle = rp.PopRaw<ArchiveHandle>();
+    const u32 secure_value_slot = rp.Pop<u32>();
+    const u64 value = rp.Pop<u64>();
+    const bool flush = rp.Pop<bool>();
+
+    // TODO: Generate and Save the Secure Value
+
+    LOG_WARNING(Service_FS,
+                "(STUBBED) called, value=0x{:016x} secure_value_slot=0x{:04X} "
+                "archive_handle=0x{:08X} flush={}",
+                value, secure_value_slot, archive_handle, flush);
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+
+    rb.Push(RESULT_SUCCESS);
+}
+
+void FS_USER::GetSaveDataSecureValue(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx);
+    const auto archive_handle = rp.PopRaw<ArchiveHandle>();
+    const u32 secure_value_slot = rp.Pop<u32>();
+
+    LOG_WARNING(Service_FS, "(STUBBED) called secure_value_slot=0x{:08X} archive_handle=0x{:08X}",
+                secure_value_slot, archive_handle);
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(5, 0);
+
+    rb.Push(RESULT_SUCCESS);
+
+    // TODO: Implement Secure Value Lookup & Generation
+
+    rb.Push<bool>(false); // indicates that the secure value doesn't exist
+    rb.Push<bool>(false); // looks like a boolean value, purpose unknown
+    rb.Push<u64>(0);      // the secure value
+}
+
+void FS_USER::RegisterProgramInfo(u32 process_id, u64 program_id, const std::string& filepath) {
     const MediaType media_type = GetMediaTypeFromPath(filepath);
     program_info_map.insert_or_assign(process_id, ProgramInfo{program_id, media_type});
     if (media_type == MediaType::GameCard) {
@@ -828,6 +929,19 @@ std::string FS_USER::GetCurrentGamecardPath() const {
     return current_gamecard_path;
 }
 
+void FS_USER::RegisterProductInfo(u32 process_id, const ProductInfo& product_info) {
+    product_info_map.insert_or_assign(process_id, product_info);
+}
+
+std::optional<FS_USER::ProductInfo> FS_USER::GetProductInfo(u32 process_id) {
+    auto it = product_info_map.find(process_id);
+    if (it != product_info_map.end()) {
+        return it->second;
+    } else {
+        return {};
+    }
+}
+
 ResultVal<u16> FS_USER::GetSpecialContentIndexFromGameCard(u64 title_id, SpecialContentType type) {
     // TODO(B3N30) check if on real 3DS NCSD is checked if partition exists
 
@@ -929,7 +1043,7 @@ FS_USER::FS_USER(Core::System& system)
         {0x082B, nullptr, "CardNorDirectRead_4xIO"},
         {0x082C, nullptr, "CardNorDirectCpuWriteWithoutVerify"},
         {0x082D, nullptr, "CardNorDirectSectorEraseWithoutVerify"},
-        {0x082E, nullptr, "GetProductInfo"},
+        {0x082E, &FS_USER::GetProductInfo, "GetProductInfo"},
         {0x082F, &FS_USER::GetProgramLaunchInfo, "GetProgramLaunchInfo"},
         {0x0830, &FS_USER::ObsoletedCreateExtSaveData, "Obsoleted_3_0_CreateExtSaveData"},
         {0x0831, nullptr, "CreateSharedExtSaveData"},
@@ -984,12 +1098,16 @@ FS_USER::FS_USER(Core::System& system)
         {0x0862, &FS_USER::SetPriority, "SetPriority"},
         {0x0863, &FS_USER::GetPriority, "GetPriority"},
         {0x0864, nullptr, "GetNandInfo"},
-        {0x0865, &FS_USER::SetSaveDataSecureValue, "SetSaveDataSecureValue"},
-        {0x0866, &FS_USER::GetSaveDataSecureValue, "GetSaveDataSecureValue"},
+        {0x0865, &FS_USER::ObsoletedSetSaveDataSecureValue, "SetSaveDataSecureValue"},
+        {0x0866, &FS_USER::ObsoletedGetSaveDataSecureValue, "GetSaveDataSecureValue"},
         {0x0867, nullptr, "ControlSecureSave"},
         {0x0868, nullptr, "GetMediaType"},
         {0x0869, nullptr, "GetNandEraseCount"},
         {0x086A, nullptr, "ReadNandReport"},
+        {0x086E, &FS_USER::SetThisSaveDataSecureValue, "SetThisSaveDataSecureValue" },
+        {0x086F, &FS_USER::GetThisSaveDataSecureValue, "GetThisSaveDataSecureValue" },
+        {0x0875, &FS_USER::SetSaveDataSecureValue, "SetSaveDataSecureValue" },
+        {0x0876, &FS_USER::GetSaveDataSecureValue, "GetSaveDataSecureValue" },
         {0x087A, &FS_USER::AddSeed, "AddSeed"},
         {0x087D, &FS_USER::GetNumSeeds, "GetNumSeeds"},
         {0x0886, nullptr, "CheckUpdatedDat"},

src/core/hle/service/fs/fs_user.h

@@ -4,10 +4,12 @@
 
 #pragma once
 
+#include <optional>
 #include <unordered_map>
 #include <boost/serialization/base_object.hpp>
 #include "common/common_types.h"
 #include "core/file_sys/errors.h"
+#include "core/hle/service/fs/archive.h"
 #include "core/hle/service/service.h"
 
 namespace Core {
@@ -47,12 +49,23 @@ class FS_USER final : public ServiceFramework<FS_USER, ClientSlot> {
 public:
     explicit FS_USER(Core::System& system);
 
-    // On real HW this is part of FS:Reg. But since that module is only used by loader and pm, which
-    // we HLEed, we can just directly use it here
-    void Register(u32 process_id, u64 program_id, const std::string& filepath);
+    // On real HW this is part of FSReg (FSReg:Register). But since that module is only used by
+    // loader and pm, which we HLEed, we can just directly use it here
+    void RegisterProgramInfo(u32 process_id, u64 program_id, const std::string& filepath);
 
     std::string GetCurrentGamecardPath() const;
 
+    struct ProductInfo {
+        std::array<u8, 0x10> product_code;
+        u16_le maker_code;
+        u16_le remaster_version;
+    };
+    static_assert(sizeof(ProductInfo) == 0x14);
+
+    void RegisterProductInfo(u32 process_id, const ProductInfo& product_info);
+
+    std::optional<ProductInfo> GetProductInfo(u32 process_id);
+
     /// Gets the registered program info of a process.
     ResultVal<ProgramInfo> GetProgramLaunchInfo(u32 process_id) const {
         auto info = program_info_map.find(process_id);
@@ -509,6 +522,17 @@ private:
      */
     void GetFormatInfo(Kernel::HLERequestContext& ctx);
 
+    /**
+     * FS_User::GetProductInfo service function.
+     *  Inputs:
+     *      0 : 0x082E0040
+     *      1 : Process ID
+     *  Outputs:
+     *      1 : Result of function, 0 on success, otherwise error code
+     *      2-6 : Product info
+     */
+    void GetProductInfo(Kernel::HLERequestContext& ctx);
+
     /**
      * FS_User::GetProgramLaunchInfo service function.
      *  Inputs:
@@ -600,7 +624,7 @@ private:
      *      0 : 0x08650140
      *      1 : Result of function, 0 on success, otherwise error code
      */
-    void SetSaveDataSecureValue(Kernel::HLERequestContext& ctx);
+    void ObsoletedSetSaveDataSecureValue(Kernel::HLERequestContext& ctx);
 
     /**
      * FS_User::GetSaveDataSecureValue service function.
@@ -615,6 +639,57 @@ private:
      *      2 : If Secure Value doesn't exist, 0, if it exists, 1
      *      3-4 : Secure Value
      */
+    void ObsoletedGetSaveDataSecureValue(Kernel::HLERequestContext& ctx);
+
+    /**
+     * FS_User::SetThisSaveDataSecureValue service function.
+     *  Inputs:
+     *      1 : Secure Value Slot
+     *      2-3 : Secure Value
+     *  Outputs:
+     *      1 : Result of function, 0 on success, otherwise error code
+     */
+    void SetThisSaveDataSecureValue(Kernel::HLERequestContext& ctx);
+
+    /**
+     * FS_User::GetSaveDataSecureValue service function.
+     *  Inputs:
+     *      1 : Secure Value Slot
+     *  Outputs:
+     *      1 : Result of function, 0 on success, otherwise error code
+     *      2 : If Secure Value doesn't exist, 0, if it exists, 1
+     *      3 : Unknown
+     *      4-5 : Secure Value
+     */
+    void GetThisSaveDataSecureValue(Kernel::HLERequestContext& ctx);
+
+    /**
+     * FS_User::SetSaveDataSecureValue service function.
+     *  Inputs:
+     *      0 : 0x08750180
+     *      1-2 : Archive
+     *      3 : Secure Value Slot
+     *      4 : value
+     *      5 : flush
+     *  Outputs:
+     *      0 : header
+     *      1 : Result of function, 0 on success, otherwise error code
+     */
+    void SetSaveDataSecureValue(Kernel::HLERequestContext& ctx);
+
+    /**
+     * FS_User::GetSaveDataSecureValue service function.
+     *  Inputs:
+     *      0 : 0x087600C0
+     *      1-2 : Archive
+     *      2 : Secure Value slot
+     *  Outputs:
+     *      0 : Header
+     *      1 : Result of function, 0 on success, otherwise error code
+     *      2 : If Secure Value doesn't exist, 0, if it exists, 1
+     *      3 : unknown
+     *      4-5 : Secure Value
+     */
     void GetSaveDataSecureValue(Kernel::HLERequestContext& ctx);
 
     static ResultVal<u16> GetSpecialContentIndexFromGameCard(u64 title_id, SpecialContentType type);
@@ -624,6 +699,8 @@ private:
     std::unordered_map<u32, ProgramInfo> program_info_map;
     std::string current_gamecard_path;
 
+    std::unordered_map<u32, ProductInfo> product_info_map;
+
     u32 priority = -1; ///< For SetPriority and GetPriority service functions
 
     Core::System& system;

src/core/loader/3dsx.cpp

@@ -282,7 +282,7 @@ ResultStatus AppLoader_THREEDSX::Load(std::shared_ptr<Kernel::Process>& process)
     // On real HW this is done with FS:Reg, but we can be lazy
     auto fs_user =
         Core::System::GetInstance().ServiceManager().GetService<Service::FS::FS_USER>("fs:USER");
-    fs_user->Register(process->GetObjectId(), process->codeset->program_id, filepath);
+    fs_user->RegisterProgramInfo(process->GetObjectId(), process->codeset->program_id, filepath);
 
     process->Run(48, Kernel::DEFAULT_STACK_SIZE);
 

src/core/loader/ncch.cpp

@@ -174,7 +174,16 @@ ResultStatus AppLoader_NCCH::LoadExec(std::shared_ptr<Kernel::Process>& process)
         auto fs_user =
             Core::System::GetInstance().ServiceManager().GetService<Service::FS::FS_USER>(
                 "fs:USER");
-        fs_user->Register(process->process_id, process->codeset->program_id, filepath);
+        fs_user->RegisterProgramInfo(process->process_id, process->codeset->program_id, filepath);
+
+        Service::FS::FS_USER::ProductInfo product_info{};
+        std::memcpy(product_info.product_code.data(), overlay_ncch->ncch_header.product_code,
+                    product_info.product_code.size());
+        std::memcpy(&product_info.remaster_version,
+                    overlay_ncch->exheader_header.codeset_info.flags.remaster_version,
+                    sizeof(product_info.remaster_version));
+        product_info.maker_code = overlay_ncch->ncch_header.maker_code;
+        fs_user->RegisterProductInfo(process->process_id, product_info);
 
         process->Run(priority, stack_size);
         return ResultStatus::Success;

src/video_core/command_processor.cpp

@@ -78,12 +78,11 @@ static void WriteUniformFloatReg(ShaderRegs& config, Shader::ShaderSetup& setup,
         (float_regs_counter >= 3 && !uniform_setup.IsFloat32())) {
         float_regs_counter = 0;
 
-        auto& uniform = setup.uniforms.f[uniform_setup.index];
-
-        if (uniform_setup.index >= 96) {
+        if (uniform_setup.index >= setup.uniforms.f.size()) {
             LOG_ERROR(HW_GPU, "Invalid {} float uniform index {}", GetShaderSetupTypeName(setup),
                       (int)uniform_setup.index);
         } else {
+            auto& uniform = setup.uniforms.f[uniform_setup.index];
 
             // NOTE: The destination component order indeed is "backwards"
             if (uniform_setup.IsFloat32()) {

src/video_core/renderer_opengl/gl_rasterizer.cpp

@@ -78,8 +78,8 @@ RasterizerOpenGL::RasterizerOpenGL(Memory::MemorySystem& memory,
                                    VideoCore::CustomTexManager& custom_tex_manager,
                                    VideoCore::RendererBase& renderer, Driver& driver_)
     : VideoCore::RasterizerAccelerated{memory}, driver{driver_},
-      shader_manager{renderer.GetRenderWindow(), driver, !driver.IsOpenGLES()},
-      runtime{driver, renderer}, res_cache{memory, custom_tex_manager, runtime, regs, renderer},
+      shader_manager{renderer.GetRenderWindow(), driver}, runtime{driver, renderer},
+      res_cache{memory, custom_tex_manager, runtime, regs, renderer},
       texture_buffer_size{TextureBufferSize()}, vertex_buffer{driver, GL_ARRAY_BUFFER,
                                                               VERTEX_BUFFER_SIZE},
       uniform_buffer{driver, GL_UNIFORM_BUFFER, UNIFORM_BUFFER_SIZE},

src/video_core/renderer_opengl/gl_resource_manager.cpp

@@ -2,14 +2,10 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include "common/microprofile.h"
 #include "video_core/renderer_opengl/gl_resource_manager.h"
 #include "video_core/renderer_opengl/gl_shader_util.h"
 #include "video_core/renderer_opengl/gl_state.h"
 
-MICROPROFILE_DEFINE(OpenGL_ResourceCreation, "OpenGL", "Resource Creation", MP_RGB(128, 128, 192));
-MICROPROFILE_DEFINE(OpenGL_ResourceDeletion, "OpenGL", "Resource Deletion", MP_RGB(128, 128, 192));
-
 namespace OpenGL {
 
 void OGLRenderbuffer::Create() {
@@ -17,7 +13,6 @@ void OGLRenderbuffer::Create() {
         return;
     }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
     glGenRenderbuffers(1, &handle);
 }
 
@@ -26,7 +21,6 @@ void OGLRenderbuffer::Release() {
         return;
     }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceDeletion);
     glDeleteRenderbuffers(1, &handle);
     OpenGLState::GetCurState().ResetRenderbuffer(handle).Apply();
     handle = 0;
@@ -37,7 +31,6 @@ void OGLTexture::Create() {
         return;
     }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
     glGenTextures(1, &handle);
 }
 
@@ -46,7 +39,6 @@ void OGLTexture::Release() {
         return;
     }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceDeletion);
     glDeleteTextures(1, &handle);
     OpenGLState::GetCurState().ResetTexture(handle).Apply();
     handle = 0;
@@ -88,7 +80,6 @@ void OGLSampler::Create() {
         return;
     }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
     glGenSamplers(1, &handle);
 }
 
@@ -97,37 +88,41 @@ void OGLSampler::Release() {
         return;
     }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceDeletion);
     glDeleteSamplers(1, &handle);
     OpenGLState::GetCurState().ResetSampler(handle).Apply();
     handle = 0;
 }
 
 void OGLShader::Create(std::string_view source, GLenum type) {
-    if (handle != 0)
+    if (handle != 0) {
         return;
-    if (source.empty())
+    }
+    if (source.empty()) {
         return;
+    }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
     handle = LoadShader(source, type);
 }
 
 void OGLShader::Release() {
-    if (handle == 0)
+    if (handle == 0) {
         return;
+    }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceDeletion);
     glDeleteShader(handle);
     handle = 0;
 }
 
-void OGLProgram::Create(bool separable_program, std::span<const GLuint> shaders) {
-    if (handle != 0)
+void OGLProgram::Create(std::string_view source, GLenum type) {
+    if (handle != 0) {
         return;
+    }
+    if (source.empty()) {
+        return;
+    }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
-    handle = LoadProgram(separable_program, shaders);
+    const std::array sources{GetPreamble().data(), source.data()};
+    handle = glCreateShaderProgramv(type, 2, sources.data());
 }
 
 void OGLProgram::Create(std::string_view vert_shader, std::string_view frag_shader) {
@@ -135,88 +130,87 @@ void OGLProgram::Create(std::string_view vert_shader, std::string_view frag_shad
     vert.Create(vert_shader, GL_VERTEX_SHADER);
     frag.Create(frag_shader, GL_FRAGMENT_SHADER);
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
     const std::array shaders{vert.handle, frag.handle};
-    Create(false, shaders);
+    handle = LoadProgram(shaders);
 }
 
 void OGLProgram::Release() {
-    if (handle == 0)
+    if (handle == 0) {
         return;
+    }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceDeletion);
     glDeleteProgram(handle);
     OpenGLState::GetCurState().ResetProgram(handle).Apply();
     handle = 0;
 }
 
 void OGLPipeline::Create() {
-    if (handle != 0)
+    if (handle != 0) {
         return;
+    }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
     glGenProgramPipelines(1, &handle);
 }
 
 void OGLPipeline::Release() {
-    if (handle == 0)
+    if (handle == 0) {
         return;
+    }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceDeletion);
     glDeleteProgramPipelines(1, &handle);
     OpenGLState::GetCurState().ResetPipeline(handle).Apply();
     handle = 0;
 }
 
 void OGLBuffer::Create() {
-    if (handle != 0)
+    if (handle != 0) {
         return;
+    }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
     glGenBuffers(1, &handle);
 }
 
 void OGLBuffer::Release() {
-    if (handle == 0)
+    if (handle == 0) {
         return;
+    }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceDeletion);
     glDeleteBuffers(1, &handle);
     OpenGLState::GetCurState().ResetBuffer(handle).Apply();
     handle = 0;
 }
 
 void OGLVertexArray::Create() {
-    if (handle != 0)
+    if (handle != 0) {
         return;
+    }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
     glGenVertexArrays(1, &handle);
 }
 
 void OGLVertexArray::Release() {
-    if (handle == 0)
+    if (handle == 0) {
         return;
+    }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceDeletion);
     glDeleteVertexArrays(1, &handle);
     OpenGLState::GetCurState().ResetVertexArray(handle).Apply();
     handle = 0;
 }
 
 void OGLFramebuffer::Create() {
-    if (handle != 0)
+    if (handle != 0) {
         return;
+    }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
     glGenFramebuffers(1, &handle);
 }
 
 void OGLFramebuffer::Release() {
-    if (handle == 0)
+    if (handle == 0) {
         return;
+    }
 
-    MICROPROFILE_SCOPE(OpenGL_ResourceDeletion);
     glDeleteFramebuffers(1, &handle);
     OpenGLState::GetCurState().ResetFramebuffer(handle).Apply();
     handle = 0;

src/video_core/renderer_opengl/gl_resource_manager.h

@@ -130,7 +130,7 @@ public:
     }
 
     /// Creates a new program from given shader objects
-    void Create(bool separable_program, std::span<const GLuint> shaders);
+    void Create(std::string_view source, GLenum type);
 
     /// Creates a new program from given shader soruce code
     void Create(std::string_view vert_shader, std::string_view frag_shader);

src/video_core/renderer_opengl/gl_shader_disk_cache.cpp

@@ -103,10 +103,8 @@ bool ShaderDiskCacheRaw::Save(FileUtil::IOFile& file) const {
     return true;
 }
 
-ShaderDiskCache::ShaderDiskCache(bool separable)
-    : separable{separable}, transferable_file(AppendTransferableFile()),
-      // seperable shaders use the virtual precompile file, that already has a header.
-      precompiled_file(AppendPrecompiledFile(!separable)) {}
+ShaderDiskCache::ShaderDiskCache()
+    : transferable_file(AppendTransferableFile()), precompiled_file(AppendPrecompiledFile()) {}
 
 std::optional<std::vector<ShaderDiskCacheRaw>> ShaderDiskCache::LoadTransferable() {
     const bool has_title_id = GetProgramID() != 0;
@@ -177,7 +175,7 @@ std::optional<std::vector<ShaderDiskCacheRaw>> ShaderDiskCache::LoadTransferable
 }
 
 std::pair<std::unordered_map<u64, ShaderDiskCacheDecompiled>, ShaderDumpsMap>
-ShaderDiskCache::LoadPrecompiled(bool compressed) {
+ShaderDiskCache::LoadPrecompiled() {
     if (!IsUsable())
         return {};
 
@@ -187,7 +185,7 @@ ShaderDiskCache::LoadPrecompiled(bool compressed) {
         return {};
     }
 
-    const auto result = LoadPrecompiledFile(precompiled_file, compressed);
+    const auto result = LoadPrecompiledFile(precompiled_file);
     if (!result) {
         LOG_INFO(Render_OpenGL,
                  "Failed to load precompiled cache for game with title id={} - removing",
@@ -199,22 +197,16 @@ ShaderDiskCache::LoadPrecompiled(bool compressed) {
 }
 
 std::optional<std::pair<std::unordered_map<u64, ShaderDiskCacheDecompiled>, ShaderDumpsMap>>
-ShaderDiskCache::LoadPrecompiledFile(FileUtil::IOFile& file, bool compressed) {
+ShaderDiskCache::LoadPrecompiledFile(FileUtil::IOFile& file) {
     // Read compressed file from disk and decompress to virtual precompiled cache file
     std::vector<u8> precompiled_file(file.GetSize());
     file.ReadBytes(precompiled_file.data(), precompiled_file.size());
-    if (compressed) {
-        const std::vector<u8> decompressed =
-            Common::Compression::DecompressDataZSTD(precompiled_file);
-        if (decompressed.empty()) {
-            LOG_ERROR(Render_OpenGL, "Could not decompress precompiled shader cache.");
-            return std::nullopt;
-        }
-        SaveArrayToPrecompiled(decompressed.data(), decompressed.size());
-    } else {
-        SaveArrayToPrecompiled(precompiled_file.data(), precompiled_file.size());
+    const std::vector<u8> decompressed = Common::Compression::DecompressDataZSTD(precompiled_file);
+    if (decompressed.empty()) {
+        LOG_ERROR(Render_OpenGL, "Could not decompress precompiled shader cache.");
+        return std::nullopt;
     }
-
+    SaveArrayToPrecompiled(decompressed.data(), decompressed.size());
     decompressed_precompiled_cache_offset = 0;
 
     ShaderCacheVersionHash file_hash{};
@@ -353,7 +345,7 @@ void ShaderDiskCache::InvalidatePrecompiled() {
     if (!FileUtil::Delete(GetPrecompiledPath())) {
         LOG_ERROR(Render_OpenGL, "Failed to invalidate precompiled file={}", GetPrecompiledPath());
     }
-    precompiled_file = AppendPrecompiledFile(!separable);
+    precompiled_file = AppendPrecompiledFile();
 }
 
 void ShaderDiskCache::SaveRaw(const ShaderDiskCacheRaw& entry) {
@@ -471,12 +463,11 @@ FileUtil::IOFile ShaderDiskCache::AppendTransferableFile() {
     return file;
 }
 
-FileUtil::IOFile ShaderDiskCache::AppendPrecompiledFile(bool write_header) {
+FileUtil::IOFile ShaderDiskCache::AppendPrecompiledFile() {
     if (!EnsureDirectories())
         return {};
 
     const auto precompiled_path{GetPrecompiledPath()};
-    const bool existed = FileUtil::Exists(precompiled_path);
 
     FileUtil::IOFile file(precompiled_path, "ab+");
     if (!file.IsOpen()) {
@@ -484,15 +475,6 @@ FileUtil::IOFile ShaderDiskCache::AppendPrecompiledFile(bool write_header) {
         return {};
     }
 
-    // If the file didn't exist, write its version
-    if (write_header && (!existed || file.GetSize() == 0)) {
-        const auto hash{GetShaderCacheVersionHash()};
-        if (file.WriteArray(hash.data(), hash.size()) != hash.size()) {
-            LOG_ERROR(Render_OpenGL, "Failed to write precompiled cache version in path={}",
-                      precompiled_path);
-            return {};
-        }
-    }
     return file;
 }
 
@@ -516,7 +498,7 @@ void ShaderDiskCache::SaveVirtualPrecompiledFile() {
     if (!FileUtil::Delete(GetPrecompiledPath())) {
         LOG_ERROR(Render_OpenGL, "Failed to invalidate precompiled file={}", GetPrecompiledPath());
     }
-    precompiled_file = AppendPrecompiledFile(!separable);
+    precompiled_file = AppendPrecompiledFile();
 
     if (precompiled_file.WriteBytes(compressed.data(), compressed.size()) != compressed.size()) {
         LOG_ERROR(Render_OpenGL, "Failed to write precompiled cache version in path={}",
@@ -558,10 +540,7 @@ std::string ShaderDiskCache::GetPrecompiledDir() const {
 }
 
 std::string ShaderDiskCache::GetPrecompiledShaderDir() const {
-    if (separable) {
-        return GetPrecompiledDir() + DIR_SEP "separable";
-    }
-    return GetPrecompiledDir() + DIR_SEP "conventional";
+    return GetPrecompiledDir() + DIR_SEP "separable";
 }
 
 std::string ShaderDiskCache::GetBaseDir() const {

src/video_core/renderer_opengl/gl_shader_disk_cache.h

@@ -16,11 +16,8 @@
 
 #include <glad/glad.h>
 
-#include "common/assert.h"
-#include "common/common_types.h"
 #include "common/file_util.h"
-#include "video_core/regs.h"
-#include "video_core/shader/generator/glsl_shader_gen.h"
+#include "video_core/shader/generator/shader_gen.h"
 
 namespace Core {
 class System;
@@ -90,14 +87,14 @@ struct ShaderDiskCacheDump {
 
 class ShaderDiskCache {
 public:
-    explicit ShaderDiskCache(bool separable);
+    explicit ShaderDiskCache();
     ~ShaderDiskCache() = default;
 
     /// Loads transferable cache. If file has a old version or on failure, it deletes the file.
     std::optional<std::vector<ShaderDiskCacheRaw>> LoadTransferable();
 
     /// Loads current game's precompiled cache. Invalidates on failure.
-    std::pair<ShaderDecompiledMap, ShaderDumpsMap> LoadPrecompiled(bool compressed);
+    std::pair<ShaderDecompiledMap, ShaderDumpsMap> LoadPrecompiled();
 
     /// Removes the transferable (and precompiled) cache file.
     void InvalidateAll();
@@ -123,7 +120,7 @@ public:
 private:
     /// Loads the transferable cache. Returns empty on failure.
     std::optional<std::pair<ShaderDecompiledMap, ShaderDumpsMap>> LoadPrecompiledFile(
-        FileUtil::IOFile& file, bool compressed);
+        FileUtil::IOFile& file);
 
     /// Loads a decompiled cache entry from m_precompiled_cache_virtual_file. Returns empty on
     /// failure.
@@ -143,7 +140,7 @@ private:
     FileUtil::IOFile AppendTransferableFile();
 
     /// Opens current game's precompiled file and write it's header if it doesn't exist
-    FileUtil::IOFile AppendPrecompiledFile(bool write_header);
+    FileUtil::IOFile AppendPrecompiledFile();
 
     /// Save precompiled header to precompiled_cache_in_memory
     void SavePrecompiledHeaderToVirtualPrecompiledCache();
@@ -219,8 +216,6 @@ private:
     // The cache has been loaded at boot
     bool tried_to_load{};
 
-    bool separable{};
-
     u64 program_id{};
     std::string title_id;
 

src/video_core/renderer_opengl/gl_shader_manager.cpp

@@ -14,7 +14,7 @@
 #include "video_core/renderer_opengl/gl_shader_disk_cache.h"
 #include "video_core/renderer_opengl/gl_shader_manager.h"
 #include "video_core/renderer_opengl/gl_state.h"
-#include "video_core/shader/generator/shader_uniforms.h"
+#include "video_core/shader/generator/glsl_shader_gen.h"
 #include "video_core/video_core.h"
 
 using namespace Pica::Shader::Generator;
@@ -35,19 +35,16 @@ static u64 GetUniqueIdentifier(const Pica::Regs& regs, const ProgramCode& code)
 }
 
 static OGLProgram GeneratePrecompiledProgram(const ShaderDiskCacheDump& dump,
-                                             const std::set<GLenum>& supported_formats,
-                                             bool separable) {
+                                             const std::set<GLenum>& supported_formats) {
 
     if (supported_formats.find(dump.binary_format) == supported_formats.end()) {
         LOG_INFO(Render_OpenGL, "Precompiled cache entry with unsupported format - removing");
         return {};
     }
 
-    auto shader = OGLProgram();
+    OGLProgram shader{};
     shader.handle = glCreateProgram();
-    if (separable) {
-        glProgramParameteri(shader.handle, GL_PROGRAM_SEPARABLE, GL_TRUE);
-    }
+    glProgramParameteri(shader.handle, GL_PROGRAM_SEPARABLE, GL_TRUE);
     glProgramBinary(shader.handle, dump.binary_format, dump.binary.data(),
                     static_cast<GLsizei>(dump.binary.size()));
 
@@ -90,91 +87,42 @@ static std::tuple<PicaVSConfig, Pica::Shader::ShaderSetup> BuildVSConfigFromRaw(
             setup};
 }
 
-/**
- * An object representing a shader program staging. It can be either a shader object or a program
- * object, depending on whether separable program is used.
- */
-class OGLShaderStage {
-public:
-    explicit OGLShaderStage(bool separable) {
-        if (separable) {
-            shader_or_program = OGLProgram();
-        } else {
-            shader_or_program = OGLShader();
-        }
-    }
-
-    void Create(const char* source, GLenum type) {
-        if (shader_or_program.index() == 0) {
-            std::get<OGLShader>(shader_or_program).Create(source, type);
-        } else {
-            OGLShader shader;
-            shader.Create(source, type);
-            OGLProgram& program = std::get<OGLProgram>(shader_or_program);
-            program.Create(true, std::array{shader.handle});
-        }
-    }
-
-    GLuint GetHandle() const {
-        if (shader_or_program.index() == 0) {
-            return std::get<OGLShader>(shader_or_program).handle;
-        } else {
-            return std::get<OGLProgram>(shader_or_program).handle;
-        }
-    }
-
-    void Inject(OGLProgram&& program) {
-        shader_or_program = std::move(program);
-    }
-
-private:
-    std::variant<OGLShader, OGLProgram> shader_or_program;
-};
-
 class TrivialVertexShader {
 public:
-    explicit TrivialVertexShader(const Driver& driver, bool separable) : program(separable) {
-        const auto code =
-            GLSL::GenerateTrivialVertexShader(driver.HasClipCullDistance(), separable);
-        program.Create(code.c_str(), GL_VERTEX_SHADER);
+    explicit TrivialVertexShader(const Driver& driver) {
+        const auto code = GLSL::GenerateTrivialVertexShader(driver.HasClipCullDistance(), true);
+        program.Create(code, GL_VERTEX_SHADER);
     }
     GLuint Get() const {
-        return program.GetHandle();
+        return program.handle;
     }
 
 private:
-    OGLShaderStage program;
+    OGLProgram program;
 };
 
-template <typename KeyConfigType, std::string (*CodeGenerator)(const KeyConfigType&, bool),
-          GLenum ShaderType>
+template <typename KeyConfigType, auto CodeGenerator, GLenum ShaderType>
 class ShaderCache {
 public:
-    explicit ShaderCache(bool separable) : separable(separable) {}
+    explicit ShaderCache() = default;
+
     std::tuple<GLuint, std::optional<std::string>> Get(const KeyConfigType& config) {
-        auto [iter, new_shader] = shaders.emplace(config, OGLShaderStage{separable});
-        OGLShaderStage& cached_shader = iter->second;
+        auto [iter, new_shader] = shaders.try_emplace(config);
+        OGLProgram& cached_shader = iter->second;
         std::optional<std::string> result{};
         if (new_shader) {
-            result = CodeGenerator(config, separable);
-            cached_shader.Create(result->c_str(), ShaderType);
+            result = CodeGenerator(config, true);
+            cached_shader.Create(result.value(), ShaderType);
         }
-        return {cached_shader.GetHandle(), std::move(result)};
+        return {cached_shader.handle, std::move(result)};
     }
 
-    void Inject(const KeyConfigType& key, OGLProgram&& program) {
-        OGLShaderStage stage{separable};
-        stage.Inject(std::move(program));
-        shaders.emplace(key, std::move(stage));
-    }
-
-    void Inject(const KeyConfigType& key, OGLShaderStage&& stage) {
+    void Inject(const KeyConfigType& key, OGLProgram&& stage) {
         shaders.emplace(key, std::move(stage));
     }
 
 private:
-    bool separable;
-    std::unordered_map<KeyConfigType, OGLShaderStage> shaders;
+    std::unordered_map<KeyConfigType, OGLProgram> shaders;
 };
 
 // This is a cache designed for shaders translated from PICA shaders. The first cache matches the
@@ -182,59 +130,48 @@ private:
 // GLSL code. The configuration is like this because there might be leftover code in the PICA shader
 // program buffer from the previous shader, which is hashed into the config, resulting several
 // different config values from the same shader program.
-template <typename KeyConfigType,
-          std::string (*CodeGenerator)(const Pica::Shader::ShaderSetup&, const KeyConfigType&,
-                                       bool),
-          GLenum ShaderType>
+template <typename KeyConfigType, auto CodeGenerator, GLenum ShaderType>
 class ShaderDoubleCache {
 public:
-    explicit ShaderDoubleCache(bool separable) : separable(separable) {}
+    explicit ShaderDoubleCache() = default;
+
     std::tuple<GLuint, std::optional<std::string>> Get(const KeyConfigType& key,
                                                        const Pica::Shader::ShaderSetup& setup) {
         std::optional<std::string> result{};
         auto map_it = shader_map.find(key);
         if (map_it == shader_map.end()) {
-            auto program = CodeGenerator(setup, key, separable);
+            const auto program = CodeGenerator(setup, key, separable);
             if (program.empty()) {
                 shader_map[key] = nullptr;
                 return {0, std::nullopt};
             }
 
-            auto [iter, new_shader] = shader_cache.emplace(program, OGLShaderStage{separable});
-            OGLShaderStage& cached_shader = iter->second;
+            const auto [iter, new_shader] = shader_cache.try_emplace(program);
+            OGLProgram& cached_shader = iter->second;
             if (new_shader) {
                 result = program;
-                cached_shader.Create(program.c_str(), ShaderType);
+                cached_shader.Create(program, ShaderType);
             }
             shader_map[key] = &cached_shader;
-            return {cached_shader.GetHandle(), std::move(result)};
+            return {cached_shader.handle, std::move(result)};
         }
 
         if (map_it->second == nullptr) {
             return {0, std::nullopt};
         }
 
-        return {map_it->second->GetHandle(), std::nullopt};
+        return {map_it->second->handle, std::nullopt};
     }
 
     void Inject(const KeyConfigType& key, std::string decomp, OGLProgram&& program) {
-        OGLShaderStage stage{separable};
-        stage.Inject(std::move(program));
-        const auto iter = shader_cache.emplace(std::move(decomp), std::move(stage)).first;
-        OGLShaderStage& cached_shader = iter->second;
-        shader_map.insert_or_assign(key, &cached_shader);
-    }
-
-    void Inject(const KeyConfigType& key, std::string decomp, OGLShaderStage&& stage) {
-        const auto iter = shader_cache.emplace(std::move(decomp), std::move(stage)).first;
-        OGLShaderStage& cached_shader = iter->second;
-        shader_map.insert_or_assign(key, &cached_shader);
+        const auto iter = shader_cache.emplace(std::move(decomp), std::move(program)).first;
+        shader_map.insert_or_assign(key, &iter->second);
     }
 
 private:
     bool separable;
-    std::unordered_map<KeyConfigType, OGLShaderStage*> shader_map;
-    std::unordered_map<std::string, OGLShaderStage> shader_cache;
+    std::unordered_map<KeyConfigType, OGLProgram*> shader_map;
+    std::unordered_map<std::string, OGLProgram> shader_cache;
 };
 
 using ProgrammableVertexShaders =
@@ -248,12 +185,8 @@ using FragmentShaders =
 
 class ShaderProgramManager::Impl {
 public:
-    explicit Impl(const Driver& driver, bool separable)
-        : separable(separable), programmable_vertex_shaders(separable),
-          trivial_vertex_shader(driver, separable), fixed_geometry_shaders(separable),
-          fragment_shaders(separable), disk_cache(separable) {
-        if (separable)
-            pipeline.Create();
+    explicit Impl(const Driver& driver) : trivial_vertex_shader(driver) {
+        pipeline.Create();
     }
 
     struct ShaderTuple {
@@ -282,8 +215,6 @@ public:
     static_assert(offsetof(ShaderTuple, fs_hash) == sizeof(std::size_t) * 2,
                   "ShaderTuple layout changed!");
 
-    bool separable;
-
     ShaderTuple current;
 
     ProgrammableVertexShaders programmable_vertex_shaders;
@@ -297,11 +228,10 @@ public:
     ShaderDiskCache disk_cache;
 };
 
-ShaderProgramManager::ShaderProgramManager(Frontend::EmuWindow& emu_window_, const Driver& driver_,
-                                           bool separable)
+ShaderProgramManager::ShaderProgramManager(Frontend::EmuWindow& emu_window_, const Driver& driver_)
     : emu_window{emu_window_}, driver{driver_},
       strict_context_required{emu_window.StrictContextRequired()}, impl{std::make_unique<Impl>(
-                                                                       driver_, separable)} {}
+                                                                       driver_)} {}
 
 ShaderProgramManager::~ShaderProgramManager() = default;
 
@@ -363,30 +293,18 @@ void ShaderProgramManager::UseFragmentShader(const Pica::Regs& regs, bool use_no
 }
 
 void ShaderProgramManager::ApplyTo(OpenGLState& state) {
-    if (impl->separable) {
-        if (driver.HasBug(DriverBug::ShaderStageChangeFreeze)) {
-            glUseProgramStages(
-                impl->pipeline.handle,
-                GL_VERTEX_SHADER_BIT | GL_GEOMETRY_SHADER_BIT | GL_FRAGMENT_SHADER_BIT, 0);
-        }
-
-        glUseProgramStages(impl->pipeline.handle, GL_VERTEX_SHADER_BIT, impl->current.vs);
-        glUseProgramStages(impl->pipeline.handle, GL_GEOMETRY_SHADER_BIT, impl->current.gs);
-        glUseProgramStages(impl->pipeline.handle, GL_FRAGMENT_SHADER_BIT, impl->current.fs);
-        state.draw.shader_program = 0;
-        state.draw.program_pipeline = impl->pipeline.handle;
-    } else {
-        const u64 unique_identifier = impl->current.GetConfigHash();
-        OGLProgram& cached_program = impl->program_cache[unique_identifier];
-        if (cached_program.handle == 0) {
-            cached_program.Create(false,
-                                  std::array{impl->current.vs, impl->current.gs, impl->current.fs});
-            auto& disk_cache = impl->disk_cache;
-            disk_cache.SaveDumpToFile(unique_identifier, cached_program.handle,
-                                      VideoCore::g_hw_shader_accurate_mul);
-        }
-        state.draw.shader_program = cached_program.handle;
+    if (driver.HasBug(DriverBug::ShaderStageChangeFreeze)) {
+        glUseProgramStages(impl->pipeline.handle,
+                           GL_VERTEX_SHADER_BIT | GL_GEOMETRY_SHADER_BIT | GL_FRAGMENT_SHADER_BIT,
+                           0);
     }
+
+    glUseProgramStages(impl->pipeline.handle, GL_VERTEX_SHADER_BIT, impl->current.vs);
+    glUseProgramStages(impl->pipeline.handle, GL_GEOMETRY_SHADER_BIT, impl->current.gs);
+    glUseProgramStages(impl->pipeline.handle, GL_FRAGMENT_SHADER_BIT, impl->current.fs);
+
+    state.draw.shader_program = 0;
+    state.draw.program_pipeline = impl->pipeline.handle;
 }
 
 void ShaderProgramManager::LoadDiskCache(const std::atomic_bool& stop_loading,
@@ -400,7 +318,7 @@ void ShaderProgramManager::LoadDiskCache(const std::atomic_bool& stop_loading,
 
     // Load uncompressed precompiled file for non-separable shaders.
     // Precompiled file for separable shaders is compressed.
-    auto [decompiled, dumps] = disk_cache.LoadPrecompiled(impl->separable);
+    auto [decompiled, dumps] = disk_cache.LoadPrecompiled();
 
     if (stop_loading) {
         return;
@@ -418,117 +336,81 @@ void ShaderProgramManager::LoadDiskCache(const std::atomic_bool& stop_loading,
         callback(VideoCore::LoadCallbackStage::Decompile, 0, raws.size());
     }
     std::vector<std::size_t> load_raws_index;
+
     // Loads both decompiled and precompiled shaders from the cache. If either one is missing for
-    const auto LoadPrecompiledShader = [&](std::size_t begin, std::size_t end,
-                                           std::span<const ShaderDiskCacheRaw> raw_cache,
-                                           const ShaderDecompiledMap& decompiled_map,
-                                           const ShaderDumpsMap& dump_map) {
-        for (std::size_t i = begin; i < end; ++i) {
-            if (stop_loading || compilation_failed) {
-                return;
-            }
-            const auto& raw{raw_cache[i]};
-            const u64 unique_identifier{raw.GetUniqueIdentifier()};
-
-            const u64 calculated_hash =
-                GetUniqueIdentifier(raw.GetRawShaderConfig(), raw.GetProgramCode());
-            if (unique_identifier != calculated_hash) {
-                LOG_ERROR(Render_OpenGL,
-                          "Invalid hash in entry={:016x} (obtained hash={:016x}) - removing "
-                          "shader cache",
-                          raw.GetUniqueIdentifier(), calculated_hash);
-                disk_cache.InvalidateAll();
-                return;
-            }
-
-            const auto dump{dump_map.find(unique_identifier)};
-            const auto decomp{decompiled_map.find(unique_identifier)};
-
-            OGLProgram shader;
-
-            if (dump != dump_map.end() && decomp != decompiled_map.end()) {
-                // Only load the vertex shader if its sanitize_mul setting matches
-                if (raw.GetProgramType() == ProgramType::VS &&
-                    decomp->second.sanitize_mul != VideoCore::g_hw_shader_accurate_mul) {
-                    continue;
-                }
-
-                // If the shader is dumped, attempt to load it
-                shader =
-                    GeneratePrecompiledProgram(dump->second, supported_formats, impl->separable);
-                if (shader.handle == 0) {
-                    // If any shader failed, stop trying to compile, delete the cache, and start
-                    // loading from raws
-                    compilation_failed = true;
+    const auto LoadPrecompiledShader =
+        [&](std::size_t begin, std::size_t end, std::span<const ShaderDiskCacheRaw> raw_cache,
+            const ShaderDecompiledMap& decompiled_map, const ShaderDumpsMap& dump_map) {
+            for (std::size_t i = begin; i < end; ++i) {
+                if (stop_loading || compilation_failed) {
                     return;
                 }
-                // we have both the binary shader and the decompiled, so inject it into the
-                // cache
-                if (raw.GetProgramType() == ProgramType::VS) {
-                    auto [conf, setup] = BuildVSConfigFromRaw(raw, driver);
-                    std::scoped_lock lock(mutex);
-                    impl->programmable_vertex_shaders.Inject(conf, decomp->second.code,
-                                                             std::move(shader));
-                } else if (raw.GetProgramType() == ProgramType::FS) {
-                    PicaFSConfig conf(raw.GetRawShaderConfig(), false, driver.IsOpenGLES(), false,
-                                      driver.HasBlendMinMaxFactor());
-                    std::scoped_lock lock(mutex);
-                    impl->fragment_shaders.Inject(conf, std::move(shader));
+                const auto& raw{raw_cache[i]};
+                const u64 unique_identifier{raw.GetUniqueIdentifier()};
+
+                const u64 calculated_hash =
+                    GetUniqueIdentifier(raw.GetRawShaderConfig(), raw.GetProgramCode());
+                if (unique_identifier != calculated_hash) {
+                    LOG_ERROR(Render_OpenGL,
+                              "Invalid hash in entry={:016x} (obtained hash={:016x}) - removing "
+                              "shader cache",
+                              raw.GetUniqueIdentifier(), calculated_hash);
+                    disk_cache.InvalidateAll();
+                    return;
+                }
+
+                const auto dump{dump_map.find(unique_identifier)};
+                const auto decomp{decompiled_map.find(unique_identifier)};
+
+                OGLProgram shader;
+
+                if (dump != dump_map.end() && decomp != decompiled_map.end()) {
+                    // Only load the vertex shader if its sanitize_mul setting matches
+                    if (raw.GetProgramType() == ProgramType::VS &&
+                        decomp->second.sanitize_mul != VideoCore::g_hw_shader_accurate_mul) {
+                        continue;
+                    }
+
+                    // If the shader is dumped, attempt to load it
+                    shader = GeneratePrecompiledProgram(dump->second, supported_formats);
+                    if (shader.handle == 0) {
+                        // If any shader failed, stop trying to compile, delete the cache, and start
+                        // loading from raws.
+                        compilation_failed = true;
+                        return;
+                    }
+                    // We have both the binary shader and the decompiled, so inject it into the
+                    // cache.
+                    if (raw.GetProgramType() == ProgramType::VS) {
+                        auto [conf, setup] = BuildVSConfigFromRaw(raw, driver);
+                        std::scoped_lock lock(mutex);
+                        impl->programmable_vertex_shaders.Inject(conf, decomp->second.code,
+                                                                 std::move(shader));
+                    } else if (raw.GetProgramType() == ProgramType::FS) {
+                        PicaFSConfig conf(raw.GetRawShaderConfig(), false, driver.IsOpenGLES(),
+                                          false, driver.HasBlendMinMaxFactor());
+                        std::scoped_lock lock(mutex);
+                        impl->fragment_shaders.Inject(conf, std::move(shader));
+                    } else {
+                        // Unsupported shader type got stored somehow so nuke the cache
+
+                        LOG_CRITICAL(Frontend, "failed to load raw ProgramType {}",
+                                     raw.GetProgramType());
+                        compilation_failed = true;
+                        return;
+                    }
                 } else {
-                    // Unsupported shader type got stored somehow so nuke the cache
-
-                    LOG_CRITICAL(Frontend, "failed to load raw ProgramType {}",
-                                 raw.GetProgramType());
-                    compilation_failed = true;
-                    return;
+                    // Since precompiled didn't have the dump, we'll load them in the next phase
+                    std::scoped_lock lock(mutex);
+                    load_raws_index.push_back(i);
+                }
+                if (callback) {
+                    callback(VideoCore::LoadCallbackStage::Decompile, i, raw_cache.size());
                 }
-            } else {
-                // Since precompiled didn't have the dump, we'll load them in the next phase
-                std::scoped_lock lock(mutex);
-                load_raws_index.push_back(i);
             }
-            if (callback) {
-                callback(VideoCore::LoadCallbackStage::Decompile, i, raw_cache.size());
-            }
-        }
-    };
+        };
 
-    const auto LoadPrecompiledProgram = [&](const ShaderDecompiledMap& decompiled_map,
-                                            const ShaderDumpsMap& dump_map) {
-        std::size_t i{0};
-        for (const auto& dump : dump_map) {
-            if (stop_loading) {
-                break;
-            }
-            const u64 unique_identifier{dump.first};
-            const auto decomp{decompiled_map.find(unique_identifier)};
-
-            // Only load the program if its sanitize_mul setting matches
-            if (decomp->second.sanitize_mul != VideoCore::g_hw_shader_accurate_mul) {
-                continue;
-            }
-
-            // If the shader program is dumped, attempt to load it
-            OGLProgram shader =
-                GeneratePrecompiledProgram(dump.second, supported_formats, impl->separable);
-            if (shader.handle != 0) {
-                impl->program_cache.emplace(unique_identifier, std::move(shader));
-            } else {
-                LOG_ERROR(Frontend, "Failed to link Precompiled program!");
-                compilation_failed = true;
-                break;
-            }
-            if (callback) {
-                callback(VideoCore::LoadCallbackStage::Decompile, ++i, dump_map.size());
-            }
-        }
-    };
-
-    if (impl->separable) {
-        LoadPrecompiledShader(0, raws.size(), raws, decompiled, dumps);
-    } else {
-        LoadPrecompiledProgram(decompiled, dumps);
-    }
+    LoadPrecompiledShader(0, raws.size(), raws, decompiled, dumps);
 
     bool load_all_raws = false;
     if (compilation_failed) {
@@ -539,11 +421,6 @@ void ShaderProgramManager::LoadDiskCache(const std::atomic_bool& stop_loading,
         precompiled_cache_altered = true;
         load_all_raws = true;
     }
-    // TODO(SachinV): Skip loading raws until we implement a proper way to link non-seperable
-    // shaders.
-    if (!impl->separable) {
-        return;
-    }
 
     const std::size_t load_raws_size = load_all_raws ? raws.size() : load_raws_index.size();
 
@@ -570,25 +447,25 @@ void ShaderProgramManager::LoadDiskCache(const std::atomic_bool& stop_loading,
             GLuint handle{0};
             std::string code;
             // Otherwise decompile and build the shader at boot and save the result to the
-            // precompiled file
+            // precompiled file.
             if (raw.GetProgramType() == ProgramType::VS) {
-                auto [conf, setup] = BuildVSConfigFromRaw(raw, driver);
-                code = GLSL::GenerateVertexShader(setup, conf, impl->separable);
-                OGLShaderStage stage{impl->separable};
-                stage.Create(code.c_str(), GL_VERTEX_SHADER);
-                handle = stage.GetHandle();
+                const auto [conf, setup] = BuildVSConfigFromRaw(raw, driver);
+                code = GLSL::GenerateVertexShader(setup, conf, true);
+                OGLProgram program{};
+                program.Create(code, GL_VERTEX_SHADER);
+                handle = program.handle;
                 sanitize_mul = conf.state.sanitize_mul;
                 std::scoped_lock lock(mutex);
-                impl->programmable_vertex_shaders.Inject(conf, code, std::move(stage));
+                impl->programmable_vertex_shaders.Inject(conf, code, std::move(program));
             } else if (raw.GetProgramType() == ProgramType::FS) {
                 PicaFSConfig conf(raw.GetRawShaderConfig(), false, driver.IsOpenGLES(), false,
                                   driver.HasBlendMinMaxFactor());
-                code = GLSL::GenerateFragmentShader(conf, impl->separable);
-                OGLShaderStage stage{impl->separable};
-                stage.Create(code.c_str(), GL_FRAGMENT_SHADER);
-                handle = stage.GetHandle();
+                code = GLSL::GenerateFragmentShader(conf, true);
+                OGLProgram program{};
+                program.Create(code, GL_FRAGMENT_SHADER);
+                handle = program.handle;
                 std::scoped_lock lock(mutex);
-                impl->fragment_shaders.Inject(conf, std::move(stage));
+                impl->fragment_shaders.Inject(conf, std::move(program));
             } else {
                 // Unsupported shader type got stored somehow so nuke the cache
                 LOG_ERROR(Frontend, "failed to load raw ProgramType {}", raw.GetProgramType());

src/video_core/renderer_opengl/gl_shader_manager.h

@@ -33,22 +33,29 @@ enum UniformBindings {
 /// A class that manage different shader stages and configures them with given config data.
 class ShaderProgramManager {
 public:
-    ShaderProgramManager(Frontend::EmuWindow& emu_window, const Driver& driver, bool separable);
+    explicit ShaderProgramManager(Frontend::EmuWindow& emu_window, const Driver& driver);
     ~ShaderProgramManager();
 
+    /// Loads the pipeline cache stored to disk.
     void LoadDiskCache(const std::atomic_bool& stop_loading,
                        const VideoCore::DiskResourceLoadCallback& callback);
 
+    /// Binds a PICA decompiled vertex shader.
     bool UseProgrammableVertexShader(const Pica::Regs& config, Pica::Shader::ShaderSetup& setup);
 
+    /// Binds a passthrough vertex shader.
     void UseTrivialVertexShader();
 
+    /// Binds a passthrough geometry shader.
     void UseFixedGeometryShader(const Pica::Regs& regs);
 
+    /// Binds no geometry shader.
     void UseTrivialGeometryShader();
 
+    /// Binds a fragment shader generated from PICA state.
     void UseFragmentShader(const Pica::Regs& config, bool use_normal);
 
+    /// Binds current shader state to provided OpenGLState.
     void ApplyTo(OpenGLState& state);
 
 private:

src/video_core/renderer_opengl/gl_shader_util.cpp

@@ -13,10 +13,9 @@
 
 namespace OpenGL {
 
-GLuint LoadShader(std::string_view source, GLenum type) {
-    std::string preamble;
+std::string_view GetPreamble() {
     if (GLES) {
-        preamble = R"(#version 320 es
+        return R"(#version 320 es
 
 #if defined(GL_ANDROID_extension_pack_es31a)
 #extension GL_ANDROID_extension_pack_es31a : enable
@@ -26,9 +25,12 @@ GLuint LoadShader(std::string_view source, GLenum type) {
 #extension GL_EXT_clip_cull_distance : enable
 #endif // defined(GL_EXT_clip_cull_distance)
 )";
-    } else {
-        preamble = "#version 430 core\n";
     }
+    return "#version 430 core\n";
+}
+
+GLuint LoadShader(std::string_view source, GLenum type) {
+    const auto preamble = GetPreamble();
 
     std::string_view debug_type;
     switch (type) {
@@ -72,11 +74,9 @@ GLuint LoadShader(std::string_view source, GLenum type) {
     return shader_id;
 }
 
-GLuint LoadProgram(bool separable_program, std::span<const GLuint> shaders) {
-    // Link the program
+GLuint LoadProgram(std::span<const GLuint> shaders) {
     LOG_DEBUG(Render_OpenGL, "Linking program...");
-
-    GLuint program_id = glCreateProgram();
+    const GLuint program_id = glCreateProgram();
 
     for (GLuint shader : shaders) {
         if (shader != 0) {
@@ -84,10 +84,6 @@ GLuint LoadProgram(bool separable_program, std::span<const GLuint> shaders) {
         }
     }
 
-    if (separable_program) {
-        glProgramParameteri(program_id, GL_PROGRAM_SEPARABLE, GL_TRUE);
-    }
-
     glProgramParameteri(program_id, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRUE);
     glLinkProgram(program_id);
 

src/video_core/renderer_opengl/gl_shader_util.h

@@ -9,6 +9,11 @@
 
 namespace OpenGL {
 
+/**
+ * Utility function to retrieve the preamble to compile an OpenGL GLSL shader
+ */
+std::string_view GetPreamble();
+
 /**
  * Utility function to create and compile an OpenGL GLSL shader
  * @param source String of the GLSL shader program
@@ -22,6 +27,6 @@ GLuint LoadShader(std::string_view source, GLenum type);
  * @param shaders ID of shaders to attach to the program
  * @returns Handle of the newly created OpenGL program object
  */
-GLuint LoadProgram(bool separable_program, std::span<const GLuint> shaders);
+GLuint LoadProgram(std::span<const GLuint> shaders);
 
 } // namespace OpenGL

src/video_core/renderer_opengl/gl_state.cpp

@@ -59,6 +59,7 @@ OpenGLState::OpenGLState() {
     texture_buffer_lut_lf.texture_buffer = 0;
     texture_buffer_lut_rg.texture_buffer = 0;
     texture_buffer_lut_rgba.texture_buffer = 0;
+    color_buffer.texture_2d = 0;
 
     image_shadow_buffer = 0;
     image_shadow_texture_px = 0;

src/video_core/renderer_vulkan/vk_texture_runtime.cpp

@@ -1562,7 +1562,7 @@ DebugScope::DebugScope(TextureRuntime& runtime, Common::Vec4f color, std::string
     if (!has_debug_tool) {
         return;
     }
-    scheduler.Record([color, label](vk::CommandBuffer cmdbuf) {
+    scheduler.Record([color, label = std::string(label)](vk::CommandBuffer cmdbuf) {
         const vk::DebugUtilsLabelEXT debug_label = {
             .pLabelName = label.data(),
             .color = std::array{color[0], color[1], color[2], color[3]},