enhancement(nodeps): remove gitmodules entirely

.gitmodules

@@ -1,9 +0,0 @@
-[submodule "thirdparty/pe-parse"]
-	path = thirdparty/pe-parse
-	url = https://github.com/trailofbits/pe-parse
-[submodule "thirdparty/toml11"]
-	path = thirdparty/toml11
-	url = https://github.com/ToruNiina/toml11
-[submodule "thirdparty/volk"]
-	path = thirdparty/volk
-	url = https://github.com/zeux/volk

CMakeLists.txt

@@ -12,9 +12,6 @@ add_compile_options(-fPIC
     -Wno-deprecated-declarations
     -Wno-unused-template)
 
-add_subdirectory(thirdparty/pe-parse/pe-parser-library EXCLUDE_FROM_ALL)
-add_subdirectory(thirdparty/toml11 EXCLUDE_FROM_ALL)
-add_subdirectory(thirdparty/volk EXCLUDE_FROM_ALL)
 add_subdirectory(framegen)
 
 if(LSFGVK_EXCESS_DEBUG)
@@ -41,15 +38,13 @@ add_library(lsfg-vk SHARED ${SOURCES})
 set_target_properties(lsfg-vk PROPERTIES
     CXX_STANDARD 20
     CXX_STANDARD_REQUIRED ON)
+target_include_directories(lsfg-vk SYSTEM
+    PUBLIC include/thirdparty)
 target_include_directories(lsfg-vk
     PUBLIC include)
 target_link_libraries(lsfg-vk PUBLIC
-    pe-parse toml11
     lsfg-vk-framegen)
 
-get_target_property(TOML11_INCLUDE_DIRS toml11 INTERFACE_INCLUDE_DIRECTORIES)
-target_include_directories(lsfg-vk SYSTEM PRIVATE ${TOML11_INCLUDE_DIRS})
-
 # diagnostics
 if(CMAKE_BUILD_TYPE STREQUAL "Debug")
     set_target_properties(lsfg-vk PROPERTIES

framegen/CMakeLists.txt

@@ -11,7 +11,7 @@ endif()
 
 project(lsfg-vk-framegen
     DESCRIPTION "Lossless Scaling Frame Generation Backend"
-    LANGUAGES CXX)
+    LANGUAGES C CXX)
 
 file(GLOB SOURCES
     "src/common/*.cpp"
@@ -29,6 +29,7 @@ file(GLOB SOURCES
     "v3.1p_src/shaders/*.cpp"
     "v3.1p_src/utils/*.cpp"
     "v3.1p_src/*.cpp"
+    "src/thirdparty/*.c"
 )
 
 add_library(lsfg-vk-framegen STATIC ${SOURCES})
@@ -37,13 +38,13 @@ add_library(lsfg-vk-framegen STATIC ${SOURCES})
 set_target_properties(lsfg-vk-framegen PROPERTIES
     CXX_STANDARD 20
     CXX_STANDARD_REQUIRED ON)
+target_include_directories(lsfg-vk-framegen SYSTEM
+    PUBLIC include/thirdparty)
 target_include_directories(lsfg-vk-framegen
     PUBLIC include
     PUBLIC public
     PRIVATE v3.1_include
     PRIVATE v3.1p_include)
-target_link_libraries(lsfg-vk-framegen
-    PUBLIC volk)
 
 # diagnostics
 if(CMAKE_BUILD_TYPE STREQUAL "Debug")

include/config/config.hpp

@@ -9,15 +9,21 @@
 
 namespace Config {
 
-    /// lsfg-vk configuration
-    struct Configuration {
-        /// Whether lsfg-vk should be loaded in the first place.
-        bool enable{false};
+    /// Global lsfg-vk configuration.
+    struct GlobalConfiguration {
         /// Path to Lossless.dll.
         std::string dll;
         /// Whether FP16 is force-disabled
         bool no_fp16{false};
 
+        /// Path to the configuration file.
+        std::filesystem::path config_file;
+        /// File timestamp of the configuration file
+        std::chrono::time_point<std::chrono::file_clock> timestamp;
+    };
+
+    /// Per-application lsfg-vk configuration.
+    struct GameConfiguration {
         /// The frame generation muliplier
         size_t multiplier{2};
         /// The internal flow scale factor
@@ -28,35 +34,34 @@ namespace Config {
         bool hdr{false};
 
         /// Experimental flag for overriding the synchronization method.
-        VkPresentModeKHR e_present;
+        VkPresentModeKHR e_present{ VK_PRESENT_MODE_FIFO_KHR };
 
-        /// Path to the configuration file.
-        std::filesystem::path config_file;
-        /// File timestamp of the configuration file
-        std::chrono::time_point<std::chrono::file_clock> timestamp;
     };
 
-    /// Active configuration. Must be set in main.cpp.
-    extern Configuration activeConf;
+    /// Global configuration.
+    extern GlobalConfiguration globalConf;
+    /// Currently active configuration.
+    extern std::optional<GameConfiguration> currentConf;
 
     ///
     /// Read the configuration file while preserving the previous configuration
     /// in case of an error.
     ///
     /// @param file The path to the configuration file.
+    /// @param name The preset to activate
     ///
     /// @throws std::runtime_error if an error occurs while loading the configuration file.
     ///
-    void updateConfig(const std::string& file);
+    void updateConfig(
+        const std::string& file,
+        const std::pair<std::string, std::string>& name
+    );
 
     ///
-    /// Get the configuration for a game.
+    /// Check if the configuration file is still up-to-date
     ///
-    /// @param name The name of the executable to fetch.
-    /// @return The configuration for the game or global configuration.
+    /// @return Whether the configuration is up-to-date or not.
     ///
-    /// @throws std::runtime_error if the configuration is invalid.
-    ///
-    Configuration getConfig(const std::pair<std::string, std::string>& name);
+    bool checkStatus();
 
 }

include/extract/dll.hpp

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <unordered_map>
+#include <cstdint>
+#include <string>
+#include <vector>
+
+namespace DLL {
+
+    ///
+    /// Parse all resources from a DLL file.
+    ///
+    /// *Shouldn't* cause any segmentation faults.
+    ///
+    /// @param filename Path to the DLL file.
+    /// @return A map of resource IDs to their binary data.
+    ///
+    /// @throws std::runtime_error on various failure points.
+    ///
+    std::unordered_map<uint32_t, std::vector<uint8_t>> parse_dll(const std::string& filename);
+
+}

src/config/config.cpp

@@ -1,33 +1,30 @@
 #include "config/config.hpp"
 #include "common/exception.hpp"
-
 #include "config/default_conf.hpp"
+#include "utils/utils.hpp"
 
-#include <vulkan/vulkan_core.h>
-#include <toml11/find.hpp>
-#include <toml11/parser.hpp>
+#define TOML_ENABLE_FORMATTERS 0 // NOLINT
 #include <toml.hpp>
 
-#include <unordered_map>
+#include <vulkan/vulkan_core.h>
+
 #include <filesystem>
-#include <algorithm>
 #include <exception>
 #include <stdexcept>
 #include <iostream>
 #include <optional>
 #include <fstream>
+#include <cstdint>
 #include <cstdlib>
 #include <utility>
+#include <chrono>
+#include <thread>
 #include <string>
 
 using namespace Config;
 
-namespace {
-    Configuration globalConf{};
-    std::optional<std::unordered_map<std::string, Configuration>> gameConfs;
-}
-
-Configuration Config::activeConf{};
+GlobalConfiguration Config::globalConf{};
+std::optional<GameConfiguration> Config::currentConf{};
 
 namespace {
     /// Turn a string into a VkPresentModeKHR enum value.
@@ -42,7 +39,30 @@ namespace {
     }
 }
 
-void Config::updateConfig(const std::string& file) {
+void Config::updateConfig(
+        const std::string& file,
+        const std::pair<std::string, std::string>& name) {
+    // process unchecked legacy environment variables
+    if (std::getenv("LSFG_LEGACY")) {
+        const char* dll = std::getenv("LSFG_DLL_PATH");
+        if (dll) globalConf.dll = std::string(dll);
+
+        currentConf.emplace();
+        const char* multiplier = std::getenv("LSFG_MULTIPLIER");
+        if (multiplier) currentConf->multiplier = std::stoul(multiplier);
+        const char* flow_scale = std::getenv("LSFG_FLOW_SCALE");
+        if (flow_scale) currentConf->flowScale = std::stof(flow_scale);
+        const char* performance = std::getenv("LSFG_PERFORMANCE_MODE");
+        if (performance) currentConf->performance = std::string(performance) == "1";
+        const char* hdr = std::getenv("LSFG_HDR_MODE");
+        if (hdr) currentConf->hdr = std::string(hdr) == "1";
+        const char* e_present = std::getenv("LSFG_EXPERIMENTAL_PRESENT_MODE");
+        if (e_present) currentConf->e_present = into_present(std::string(e_present));
+
+        return;
+    }
+
+    // ensure configuration file exists
     if (!std::filesystem::exists(file)) {
         std::cerr << "lsfg-vk: Placing default configuration file at " << file << '\n';
         const auto parent = std::filesystem::path(file).parent_path();
@@ -58,105 +78,97 @@ void Config::updateConfig(const std::string& file) {
     }
 
     // parse config file
-    std::optional<toml::value> parsed;
+    toml::table config{};
     try {
-        parsed.emplace(toml::parse(file));
-        if (!parsed->contains("version"))
-            throw std::runtime_error("Configuration file is missing 'version' field");
-        if (parsed->at("version").as_integer() != 1)
+        config = toml::parse_file(file);
+
+        const auto* version = config.get_as<toml::value<int64_t>>("version");
+        if (!version || *version != 1)
             throw std::runtime_error("Configuration file version is not supported, expected 1");
     } catch (const std::exception& e) {
         throw LSFG::rethrowable_error("Unable to parse configuration file", e);
     }
-    auto& toml = *parsed;
 
     // parse global configuration
-    const toml::value globalTable = toml::find_or_default<toml::table>(toml, "global");
-    const Configuration global{
-        .dll =     toml::find_or(globalTable, "dll", std::string()),
-        .no_fp16 = toml::find_or(globalTable, "no_fp16", false),
+    Config::globalConf = {
         .config_file = file,
         .timestamp = std::filesystem::last_write_time(file)
     };
-
-    // validate global configuration
-    if (global.multiplier < 2)
-        throw std::runtime_error("Global Multiplier cannot be less than 2");
-    if (global.flowScale < 0.25F || global.flowScale > 1.0F)
-        throw std::runtime_error("Flow scale must be between 0.25 and 1.0");
+    if (const auto* global = config.get_as<toml::table>("global")) {
+        if (const auto* val = global->get_as<toml::value<std::string>>("dll"))
+            globalConf.dll = val->get();
+        if (const auto* val = global->get_as<toml::value<bool>>("no_fp16"))
+            globalConf.no_fp16 = val->get();
+    }
 
     // parse game-specific configuration
-    std::unordered_map<std::string, Configuration> games;
-    const toml::value gamesList = toml::find_or_default<toml::array>(toml, "game");
-    for (const auto& gameTable : gamesList.as_array()) {
-        if (!gameTable.is_table())
+    std::optional<GameConfiguration> gameConf;
+    if (const auto* games = config["game"].as_array()) {
+        for (auto&& elem : *games) {
+            if (!elem.is_table())
                 throw std::runtime_error("Invalid game configuration entry");
-        if (!gameTable.contains("exe"))
-            throw std::runtime_error("Game override missing 'exe' field");
+            const auto* game = elem.as_table();
 
-        const std::string exe = toml::find<std::string>(gameTable, "exe");
-        Configuration game{
-            .enable = true,
-            .dll = global.dll,
-            .no_fp16 = global.no_fp16,
-            .multiplier = toml::find_or(gameTable, "multiplier", 2U),
-            .flowScale = toml::find_or(gameTable, "flow_scale", 1.0F),
-            .performance = toml::find_or(gameTable, "performance_mode", false),
-            .hdr = toml::find_or(gameTable, "hdr_mode", false),
-            .e_present =   into_present(toml::find_or(gameTable, "experimental_present_mode", "")),
-            .config_file = file,
-            .timestamp = global.timestamp
-        };
+            const auto* exe = game->at("exe").value_or("?");
+            if (!name.first.ends_with(exe) && name.second != exe)
+                continue;
 
-        // validate the configuration
-        if (game.multiplier < 1)
-            throw std::runtime_error("Multiplier cannot be less than 1");
-        if (game.flowScale < 0.25F || game.flowScale > 1.0F)
-            throw std::runtime_error("Flow scale must be between 0.25 and 1.0");
-        games[exe] = std::move(game);
+            gameConf = Config::currentConf;
+            if (!gameConf.has_value()) gameConf.emplace();
+
+            if (const auto* val = game->get_as<toml::value<int64_t>>("multiplier"))
+                gameConf->multiplier = static_cast<size_t>(val->get());
+            if (const auto* val = game->get_as<toml::value<double>>("flow_scale"))
+                gameConf->flowScale = static_cast<float>(val->get());
+            if (const auto* val = game->get_as<toml::value<bool>>("performance_mode"))
+                gameConf->performance = val->get();
+            if (const auto* val = game->get_as<toml::value<bool>>("hdr_mode"))
+                gameConf->hdr = val->get();
+            if (const auto* val = game->get_as<toml::value<std::string>>("experimental_present_mode"))
+                gameConf->e_present = into_present(val->get());
+
+            break;
+        }
     }
 
-    // store configurations
-    globalConf = global;
-    gameConfs = std::move(games);
-}
-
-Configuration Config::getConfig(const std::pair<std::string, std::string>& name) {
-    // process legacy environment variables
-    if (std::getenv("LSFG_LEGACY")) {
-        Configuration conf{
-            .enable = true,
-            .multiplier = 2,
-            .flowScale = 1.0F,
-            .e_present = VkPresentModeKHR::VK_PRESENT_MODE_FIFO_KHR
-        };
-
-        const char* dll = std::getenv("LSFG_DLL_PATH");
-        if (dll) conf.dll = std::string(dll);
-        const char* multiplier = std::getenv("LSFG_MULTIPLIER");
-        if (multiplier) conf.multiplier = std::stoul(multiplier);
-        const char* flow_scale = std::getenv("LSFG_FLOW_SCALE");
-        if (flow_scale) conf.flowScale = std::stof(flow_scale);
-        const char* performance = std::getenv("LSFG_PERFORMANCE_MODE");
-        if (performance) conf.performance = std::string(performance) == "1";
-        const char* hdr = std::getenv("LSFG_HDR_MODE");
-        if (hdr) conf.hdr = std::string(hdr) == "1";
-        const char* e_present = std::getenv("LSFG_EXPERIMENTAL_PRESENT_MODE");
-        if (e_present) conf.e_present = into_present(std::string(e_present));
-
-        return conf;
+    if (!gameConf.has_value()) {
+        Config::currentConf.reset();
+        std::cerr << "lsfg-vk: Configuration entry disappeared, disabling.\n";
+        return;
     }
 
-    // process new configuration system
-    if (!gameConfs.has_value())
-        return globalConf;
+    Config::currentConf = *gameConf;
 
-    const auto& games = *gameConfs;
-    auto it = std::ranges::find_if(games, [&name](const auto& pair) {
-        return name.first.ends_with(pair.first) || (name.second == pair.first);
-    });
-    if (it != games.end())
-        return it->second;
-
-    return globalConf;
+    // print updated config info
+    std::cerr << "lsfg-vk: Loaded configuration for " << name.first << ":\n";
+    if (!globalConf.dll.empty()) std::cerr << "  Using DLL from: " << globalConf.dll << '\n';
+    if (globalConf.no_fp16) std::cerr << "  FP16 Acceleration: Force-disabled\n";
+    std::cerr << "  Multiplier: " << gameConf->multiplier << '\n';
+    std::cerr << "  Flow Scale: " << gameConf->flowScale << '\n';
+    std::cerr << "  Performance Mode: " << (gameConf->performance ? "Enabled" : "Disabled") << '\n';
+    std::cerr << "  HDR Mode: " << (gameConf->hdr ? "Enabled" : "Disabled") << '\n';
+    if (gameConf->e_present != 2) std::cerr << "  ! Present Mode: " << gameConf->e_present << '\n';
+}
+
+bool Config::checkStatus() {
+    // check if config is up-to-date
+    auto& globalConf = Config::globalConf;
+    if (globalConf.config_file.empty())
+        return true;
+    if (!std::filesystem::exists(globalConf.config_file))
+        return true; // ignore deletion
+    if (std::filesystem::last_write_time(globalConf.config_file) == globalConf.timestamp)
+        return true;
+
+    // reload config
+    std::cerr << "lsfg-vk: Rereading configuration, as it is no longer valid.\n";
+    std::this_thread::sleep_for(std::chrono::milliseconds(73));
+    try {
+        Config::updateConfig(Utils::getConfigFile(), Utils::getProcessName());
+    } catch (const std::exception& e) {
+        std::cerr << "lsfg-vk: Failed to update configuration, continuing using old:\n";
+        std::cerr << "- " << e.what() << '\n';
+    }
+
+    return false;
 }

src/context.cpp

@@ -10,58 +10,23 @@
 #include <lsfg_3_1.hpp>
 #include <lsfg_3_1p.hpp>
 
-#include <filesystem>
-#include <exception>
-#include <iostream>
+#include <stdexcept>
 #include <cstdint>
 #include <cstdlib>
 #include <vector>
-#include <chrono>
 #include <memory>
 #include <string>
-#include <thread>
 #include <array>
 
 LsContext::LsContext(const Hooks::DeviceInfo& info, VkSwapchainKHR swapchain,
         VkExtent2D extent, const std::vector<VkImage>& swapchainImages)
         : swapchain(swapchain), swapchainImages(swapchainImages),
           extent(extent) {
-    // get updated configuration
-    auto& conf = Config::activeConf;
-    if (!conf.config_file.empty()
-            && (
-                    !std::filesystem::exists(conf.config_file)
-                  || conf.timestamp != std::filesystem::last_write_time(conf.config_file)
-            )) {
-        std::cerr << "lsfg-vk: Rereading configuration, as it is no longer valid.\n";
-        std::this_thread::sleep_for(std::chrono::milliseconds(100));
+    if (!Config::currentConf.has_value())
+        throw std::runtime_error("No configuration set");
+    auto& globalConf = Config::globalConf;
+    auto& conf = *Config::currentConf;
 
-        // reread configuration
-        const std::string file = Utils::getConfigFile();
-        const auto name = Utils::getProcessName();
-        try {
-            Config::updateConfig(file);
-            conf = Config::getConfig(name);
-        } catch (const std::exception& e) {
-            std::cerr << "lsfg-vk: Failed to update configuration, continuing using old:\n";
-            std::cerr << "- " << e.what() << '\n';
-        }
-
-        LSFG_3_1P::finalize();
-        LSFG_3_1::finalize();
-
-        // print config
-        std::cerr << "lsfg-vk: Reloaded configuration for " << name.first << ":\n";
-        if (!conf.dll.empty()) std::cerr << "  Using DLL from: " << conf.dll << '\n';
-        if (conf.no_fp16) std::cerr << "  FP16 Acceleration: Force-disabled\n";
-        std::cerr << "  Multiplier: " << conf.multiplier << '\n';
-        std::cerr << "  Flow Scale: " << conf.flowScale << '\n';
-        std::cerr << "  Performance Mode: " << (conf.performance ? "Enabled" : "Disabled") << '\n';
-        std::cerr << "  HDR Mode: " << (conf.hdr ? "Enabled" : "Disabled") << '\n';
-        if (conf.e_present != 2) std::cerr << "  ! Present Mode: " << conf.e_present << '\n';
-
-        if (conf.multiplier <= 1) return;
-    }
     // we could take the format from the swapchain,
     // but honestly this is safer.
     const VkFormat format = conf.hdr
@@ -99,7 +64,7 @@ LsContext::LsContext(const Hooks::DeviceInfo& info, VkSwapchainKHR swapchain,
     lsfgInitialize(
         Utils::getDeviceUUID(info.physicalDevice),
         conf.hdr, 1.0F / conf.flowScale, conf.multiplier - 1,
-        conf.no_fp16,
+        globalConf.no_fp16,
         Extract::getShader
     );
 
@@ -126,7 +91,10 @@ LsContext::LsContext(const Hooks::DeviceInfo& info, VkSwapchainKHR swapchain,
 
 VkResult LsContext::present(const Hooks::DeviceInfo& info, const void* pNext, VkQueue queue,
         const std::vector<VkSemaphore>& gameRenderSemaphores, uint32_t presentIdx) {
-    const auto& conf = Config::activeConf;
+    if (!Config::currentConf.has_value())
+        throw std::runtime_error("No configuration set");
+    auto& conf = *Config::currentConf;
+
     auto& pass = this->passInfos.at(this->frameIdx % 8);
 
     // 1. copy swapchain image to frame_0/frame_1

src/extract/dll.cpp

@@ -0,0 +1,203 @@
+#include "extract/dll.hpp"
+
+#include <unordered_map>
+#include <stdexcept>
+#include <algorithm>
+#include <iostream>
+#include <optional>
+#include <cstddef>
+#include <cstdint>
+#include <fstream>
+#include <utility>
+#include <string>
+#include <vector>
+#include <array>
+#include <span>
+
+/// DOS file header
+struct DOSHeader {
+    uint16_t magic; // 0x5A4D
+    std::array<uint16_t, 29> pad;
+    int32_t pe_offset; // file offset
+};
+
+/// PE header
+struct PEHeader {
+    uint32_t signature; // "PE\0\0"
+    std::array<uint16_t, 1> pad1;
+    uint16_t sect_count;
+    std::array<uint16_t, 6> pad2;
+    uint16_t opt_hdr_size;
+    std::array<uint16_t, 1> pad3;
+};
+
+/// (partial!) PE optional header
+struct PEOptionalHeader {
+    uint16_t magic; // 0x20B
+    std::array<uint16_t, 63> pad4;
+    std::pair<uint32_t, uint32_t> resource_table; // file offset/size
+};
+
+/// Section header
+struct SectionHeader {
+    std::array<uint16_t, 4> pad1;
+    uint32_t vsize; // virtual
+    uint32_t vaddress;
+    uint32_t fsize; // raw
+    uint32_t foffset;
+    std::array<uint16_t, 8> pad2;
+};
+
+/// Resource directory
+struct ResourceDirectory {
+    std::array<uint16_t, 6> pad;
+    uint16_t name_count;
+    uint16_t id_count;
+};
+
+/// Resource directory entry
+struct ResourceDirectoryEntry {
+    uint32_t id;
+    uint32_t offset; // high bit = directory
+};
+
+/// Resource data entry
+struct ResourceDataEntry {
+    uint32_t offset;
+    uint32_t size;
+    std::array<uint32_t, 2> pad;
+};
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunsafe-buffer-usage-in-container"
+namespace {
+    /// Safely cast a vector to a pointer of type T
+    template<typename T>
+    const T* safe_cast(const std::vector<uint8_t>& data, size_t offset) {
+        const size_t end = offset + sizeof(T);
+        if (end > data.size() || end < offset)
+            throw std::runtime_error("Buffer overflow during safe cast");
+        return reinterpret_cast<const T*>(&data.at(offset));
+    }
+
+    /// Safely cast a vector to a span of T
+    template<typename T>
+    std::span<const T> span_cast(const std::vector<uint8_t>& data, size_t offset, size_t count) {
+        const size_t end = offset + (count * sizeof(T));
+        if (end > data.size() || end < offset)
+            throw std::runtime_error("Buffer overflow during safe cast");
+        return std::span<const T>(reinterpret_cast<const T*>(&data.at(offset)), count);
+    }
+}
+#pragma clang diagnostic pop
+
+std::unordered_map<uint32_t, std::vector<uint8_t>> DLL::parse_dll(const std::string& filename) {
+    std::ifstream file(filename, std::ios::binary | std::ios::ate);
+    if (!file.is_open())
+        throw std::runtime_error("Failed to open Lossless.dll");
+
+    const auto size = file.tellg();
+    file.seekg(0, std::ios::beg);
+
+    std::vector<uint8_t> data(static_cast<size_t>(size));
+    if (!file.read(reinterpret_cast<char*>(data.data()), size))
+        throw std::runtime_error("Failed to read Lossless.dll");
+
+    // parse dos header
+    size_t fileOffset = 0;
+    const auto* dosHdr = safe_cast<const DOSHeader>(data, 0);
+    if (dosHdr->magic != 0x5A4D)
+        throw std::runtime_error("Invalid DOS header magic number");
+
+    // parse pe header
+    fileOffset += static_cast<size_t>(dosHdr->pe_offset);
+    const auto* peHdr = safe_cast<const PEHeader>(data, fileOffset);
+    if (peHdr->signature != 0x00004550)
+        throw std::runtime_error("Invalid PE header signature");
+
+    // parse optional pe header
+    fileOffset += sizeof(PEHeader);
+    const auto* peOptHdr = safe_cast<const PEOptionalHeader>(data, fileOffset);
+    if (peOptHdr->magic != 0x20B)
+        throw std::runtime_error("Unsupported PE format (not PE32+)");
+    const auto& [rsrc_rva, rsrc_size] = peOptHdr->resource_table;
+
+    // locate section containing resources
+    std::optional<size_t> rsrc_offset;
+    fileOffset += peHdr->opt_hdr_size;
+    const auto sectHdrs = span_cast<const SectionHeader>(data, fileOffset, peHdr->sect_count);
+    for (const auto& sectHdr : sectHdrs) {
+        if (rsrc_rva < sectHdr.vaddress || rsrc_rva > (sectHdr.vaddress + sectHdr.vsize))
+            continue;
+
+        rsrc_offset.emplace((rsrc_rva - sectHdr.vaddress) + sectHdr.foffset);
+        break;
+    }
+    if (!rsrc_offset)
+        throw std::runtime_error("Failed to locate resource section");
+
+    // parse resource directory
+    fileOffset = rsrc_offset.value();
+    const auto* rsrcDir = safe_cast<const ResourceDirectory>(data, fileOffset);
+    if (rsrcDir->id_count < 3)
+        throw std::runtime_error("Incorrect resource directory");
+
+    // find resource table with data type
+    std::optional<size_t> rsrc_tbl_offset;
+    fileOffset = rsrc_offset.value() + sizeof(ResourceDirectory);
+    const auto rsrcDirEntries = span_cast<const ResourceDirectoryEntry>(
+        data, fileOffset, rsrcDir->name_count + rsrcDir->id_count);
+    for (const auto& rsrcDirEntry : rsrcDirEntries) {
+        if (rsrcDirEntry.id != 10) // RT_RCDATA
+            continue;
+        if ((rsrcDirEntry.offset & 0x80000000) == 0)
+            throw std::runtime_error("Expected resource directory, but found data entry");
+
+        rsrc_tbl_offset.emplace(rsrcDirEntry.offset & 0x7FFFFFFF);
+    }
+    if (!rsrc_tbl_offset)
+        throw std::runtime_error("Failed to locate RT_RCDATA directory");
+
+    // parse data type resource directory
+    fileOffset = rsrc_offset.value() + rsrc_tbl_offset.value();
+    const auto* rsrcTbl = safe_cast<const ResourceDirectory>(data, fileOffset);
+    if (rsrcTbl->id_count < 1)
+        throw std::runtime_error("Incorrect RT_RCDATA directory");
+
+    // collect all resources
+    fileOffset += sizeof(ResourceDirectory);
+    const auto rsrcTblEntries = span_cast<const ResourceDirectoryEntry>(
+        data, fileOffset, rsrcTbl->name_count + rsrcTbl->id_count);
+    std::unordered_map<uint32_t, std::vector<uint8_t>> resources;
+    for (const auto& rsrcTblEntry : rsrcTblEntries) {
+        if ((rsrcTblEntry.offset & 0x80000000) == 0)
+            throw std::runtime_error("Expected resource directory, but found data entry");
+
+        // skip over language directory
+        fileOffset = rsrc_offset.value() + (rsrcTblEntry.offset & 0x7FFFFFFF);
+        const auto* langDir = safe_cast<const ResourceDirectory>(data, fileOffset);
+        if (langDir->id_count < 1)
+            throw std::runtime_error("Incorrect language directory");
+
+        fileOffset += sizeof(ResourceDirectory);
+        const auto* langDirEntry = safe_cast<const ResourceDirectoryEntry>(data, fileOffset);
+        if ((langDirEntry->offset & 0x80000000) != 0)
+            throw std::runtime_error("Expected resource data entry, but found directory");
+
+        // parse resource data entry
+        fileOffset = rsrc_offset.value() + (langDirEntry->offset & 0x7FFFFFFF);
+        const auto* entry = safe_cast<const ResourceDataEntry>(data, fileOffset);
+        if (entry->offset < rsrc_rva || entry->offset > (rsrc_rva + rsrc_size))
+            throw std::runtime_error("Resource data entry points outside resource section");
+
+        // extract resource
+        std::vector<uint8_t> resource(entry->size);
+        fileOffset = (entry->offset - rsrc_rva) + rsrc_offset.value();
+        if (fileOffset + entry->size > data.size())
+            throw std::runtime_error("Resource data entry points outside file");
+        std::copy_n(&data.at(fileOffset), entry->size, resource.data());
+        resources.emplace(rsrcTblEntry.id, std::move(resource));
+    }
+
+    return resources;
+}

src/extract/extract.cpp

@@ -1,16 +1,14 @@
 #include "extract/extract.hpp"
 #include "config/config.hpp"
+#include "extract/dll.hpp"
 
-#include <pe-parse/parse.h>
-
+#include <iostream>
 #include <unordered_map>
 #include <filesystem>
-#include <algorithm>
 #include <stdexcept>
 #include <cstdint>
 #include <cstdlib>
 #include <string>
-#include <utility>
 #include <vector>
 #include <array>
 
@@ -73,22 +71,11 @@ const std::unordered_map<std::string, uint32_t> nameIdxTable = {{
 }};
 
 namespace {
-    auto& pshaders() {
+    auto& shaders() {
         static std::unordered_map<uint32_t, std::array<std::vector<uint8_t>, 2>> shaderData;
         return shaderData;
     }
 
-    int on_resource(void* ptr, const peparse::resource& res) {
-        if (res.type != peparse::RT_RCDATA || res.buf == nullptr || res.buf->bufLen <= 0)
-            return 0;
-        std::vector<uint8_t> resource_data(res.buf->bufLen);
-        std::copy_n(res.buf->buf, res.buf->bufLen, resource_data.data());
-
-        auto* shaders = reinterpret_cast<std::unordered_map<uint32_t, std::vector<uint8_t>>*>(ptr);
-        shaders->emplace(res.name, std::move(resource_data));
-        return 0;
-    }
-
     const std::vector<std::filesystem::path> PATHS{{
         ".local/share/Steam/steamapps/common",
         ".steam/steam/steamapps/common",
@@ -99,7 +86,7 @@ namespace {
 
     std::string getDllPath() {
         // overriden path
-        std::string dllPath = Config::activeConf.dll;
+        std::string dllPath = Config::globalConf.dll;
         if (!dllPath.empty())
             return dllPath;
         // home based paths
@@ -121,44 +108,39 @@ namespace {
 }
 
 void Extract::extractShaders() {
-    if (!pshaders().empty())
+    if (!shaders().empty())
         return;
 
-    std::unordered_map<uint32_t, std::vector<uint8_t>> shaders{};
-
     // parse the dll
-    peparse::parsed_pe* dll = peparse::ParsePEFromFile(getDllPath().c_str());
-    if (!dll)
-        throw std::runtime_error("Unable to read Lossless.dll, is it installed?");
-    peparse::IterRsrc(dll, on_resource, reinterpret_cast<void*>(&shaders));
-    peparse::DestructParsedPE(dll);
+    const auto resources = DLL::parse_dll(getDllPath());
+    std::cerr << "lsfg-vk: Extracted " << resources.size() << " resources from dll.\n";
 
     // ensure all shaders are present
     for (const auto& [name, idx] : nameIdxTable) {
-        auto fp16 = shaders.find(idx);
-        if (fp16 == shaders.end())
+        auto fp16 = resources.find(idx);
+        if (fp16 == resources.end())
             throw std::runtime_error("Shader not found: " + name + " (FP16).\n- Is Lossless Scaling up to date?");
-        auto fp32 = shaders.find(idx + FP);
-        if (fp32 == shaders.end())
+        auto fp32 = resources.find(idx + FP);
+        if (fp32 == resources.end())
             throw std::runtime_error("Shader not found: " + name + " (FP32).\n- Is Lossless Scaling up to date?");
 
-        pshaders().emplace(idx, std::array<std::vector<uint8_t>, 2>{
-            std::move(fp32->second),
-            std::move(fp16->second)
+        shaders().emplace(idx, std::array<std::vector<uint8_t>, 2>{
+            fp32->second,
+            fp16->second
         });
     }
 }
 
 std::vector<uint8_t> Extract::getShader(const std::string& name, bool fp16) {
-    if (pshaders().empty())
+    if (shaders().empty())
         throw std::runtime_error("Shaders are not loaded.");
 
     auto hit = nameIdxTable.find(name);
     if (hit == nameIdxTable.end())
         throw std::runtime_error("Shader hash not found: " + name);
 
-    auto sit = pshaders().find(hit->second);
-    if (sit == pshaders().end())
+    auto sit = shaders().find(hit->second);
+    if (sit == shaders().end())
         throw std::runtime_error("Shader not found: " + name);
     return fp16 ? sit->second.at(1) : sit->second.at(0);
 }

src/hooks.cpp

@@ -8,7 +8,6 @@
 #include <vulkan/vulkan_core.h>
 
 #include <unordered_map>
-#include <filesystem>
 #include <stdexcept>
 #include <algorithm>
 #include <exception>
@@ -107,7 +106,6 @@ namespace {
 
     std::unordered_map<VkSwapchainKHR, LsContext> swapchains;
     std::unordered_map<VkSwapchainKHR, VkDevice> swapchainToDeviceTable;
-    std::unordered_map<VkSwapchainKHR, VkPresentModeKHR> swapchainToPresent;
 
     ///
     /// Adjust swapchain creation parameters and create a swapchain context.
@@ -117,6 +115,21 @@ namespace {
             const VkSwapchainCreateInfoKHR* pCreateInfo,
             const VkAllocationCallbacks* pAllocator,
             VkSwapchainKHR* pSwapchain) noexcept {
+        // retire potential old swapchain
+        if (pCreateInfo->oldSwapchain) {
+            swapchains.erase(pCreateInfo->oldSwapchain);
+            swapchainToDeviceTable.erase(pCreateInfo->oldSwapchain);
+        }
+
+        // ensure configuration is up to date
+        Config::checkStatus();
+
+        // return early if disabled
+        if (!Config::currentConf.has_value() || Config::currentConf->multiplier <= 1)
+            return Layer::ovkCreateSwapchainKHR(device, pCreateInfo, pAllocator, pSwapchain);
+        auto& conf = Config::currentConf;
+
+
         // find device
         auto it = deviceToInfo.find(device);
         if (it == deviceToInfo.end()) {
@@ -150,13 +163,7 @@ namespace {
         createInfo.imageUsage |= VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
 
         // enforce present mode
-        createInfo.presentMode = Config::activeConf.e_present;
-
-        // retire potential old swapchain
-        if (pCreateInfo->oldSwapchain) {
-            swapchains.erase(pCreateInfo->oldSwapchain);
-            swapchainToDeviceTable.erase(pCreateInfo->oldSwapchain);
-        }
+        createInfo.presentMode = conf->e_present;
 
         // create swapchain
         auto res = Layer::ovkCreateSwapchainKHR(device, &createInfo, pAllocator, pSwapchain);
@@ -164,8 +171,6 @@ namespace {
             return res; // can't be caused by lsfg-vk (yet)
 
         try {
-            swapchainToPresent.emplace(*pSwapchain, createInfo.presentMode);
-
             // get all swapchain images
             uint32_t imageCount{};
             res = Layer::ovkGetSwapchainImagesKHR(device, *pSwapchain, &imageCount, nullptr);
@@ -205,6 +210,16 @@ namespace {
     VkResult myvkQueuePresentKHR(
             VkQueue queue,
             const VkPresentInfoKHR* pPresentInfo) noexcept {
+        // ensure configuration is up to date
+        if (!Config::checkStatus())
+            return VK_ERROR_OUT_OF_DATE_KHR;
+
+        // return early if disabled
+        if (!Config::currentConf.has_value() || Config::currentConf->multiplier <= 1)
+            return Layer::ovkQueuePresentKHR(queue, pPresentInfo);
+        auto& conf = Config::currentConf;
+
+
         // find swapchain device
         auto it = swapchainToDeviceTable.find(*pPresentInfo->pSwapchains);
         if (it == swapchainToDeviceTable.end()) {
@@ -212,34 +227,28 @@ namespace {
                 "Swapchain not found in map");
             return Layer::ovkQueuePresentKHR(queue, pPresentInfo);
         }
+        Utils::resetLimitN("swapMap");
 
         // find device info
         auto it2 = deviceToInfo.find(it->second);
         if (it2 == deviceToInfo.end()) {
-            Utils::logLimitN("swapMap", 5,
+            Utils::logLimitN("deviceMap", 5,
                 "Device not found in map");
             return Layer::ovkQueuePresentKHR(queue, pPresentInfo);
         }
+        Utils::resetLimitN("deviceMap");
         auto& deviceInfo = it2->second;
 
         // find swapchain context
         auto it3 = swapchains.find(*pPresentInfo->pSwapchains);
         if (it3 == swapchains.end()) {
-            Utils::logLimitN("swapMap", 5,
+            Utils::logLimitN("swapCtxMap", 5,
                 "Swapchain context not found in map");
             return Layer::ovkQueuePresentKHR(queue, pPresentInfo);
         }
+        Utils::resetLimitN("swapCtxMap");
         auto& swapchain = it3->second;
 
-        // find present mode
-        auto it4 = swapchainToPresent.find(*pPresentInfo->pSwapchains);
-        if (it4 == swapchainToPresent.end()) {
-            Utils::logLimitN("swapMap", 5,
-                "Swapchain present mode not found in map");
-            return Layer::ovkQueuePresentKHR(queue, pPresentInfo);
-        }
-        auto& present = it4->second;
-
         // enforce present mode | NOLINTBEGIN
         #pragma clang diagnostic push
         #pragma clang diagnostic ignored "-Wunsafe-buffer-usage"
@@ -249,7 +258,7 @@ namespace {
             if (presentModeInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_PRESENT_MODE_INFO_EXT) {
                 for (size_t i = 0; i < presentModeInfo->swapchainCount; i++)
                     const_cast<VkPresentModeKHR*>(presentModeInfo->pPresentModes)[i] =
-                        present;
+                        conf->e_present;
             }
             presentModeInfo =
                 reinterpret_cast<const VkSwapchainPresentModeInfoEXT*>(presentModeInfo->pNext);
@@ -259,27 +268,6 @@ namespace {
         // NOLINTEND | present the next frame
         VkResult res{}; // might return VK_SUBOPTIMAL_KHR
         try {
-            // ensure config is valid
-            auto& conf = Config::activeConf;
-            if (!conf.config_file.empty()
-                    && (
-                            !std::filesystem::exists(conf.config_file)
-                          || conf.timestamp != std::filesystem::last_write_time(conf.config_file)
-                    )) {
-                Layer::ovkQueuePresentKHR(queue, pPresentInfo);
-                return VK_ERROR_OUT_OF_DATE_KHR;
-            }
-
-            // ensure present mode is still valid
-            if (present != conf.e_present) {
-                Layer::ovkQueuePresentKHR(queue, pPresentInfo);
-                return VK_ERROR_OUT_OF_DATE_KHR;
-            }
-
-            // skip if disabled
-            if (conf.multiplier <= 1)
-                return Layer::ovkQueuePresentKHR(queue, pPresentInfo);
-
             // present the swapchain
             std::vector<VkSemaphore> semaphores(pPresentInfo->waitSemaphoreCount);
             std::copy_n(pPresentInfo->pWaitSemaphores, semaphores.size(), semaphores.data());
@@ -304,7 +292,6 @@ namespace {
             const VkAllocationCallbacks* pAllocator) noexcept {
         swapchains.erase(swapchain);
         swapchainToDeviceTable.erase(swapchain);
-        swapchainToPresent.erase(swapchain);
         Layer::ovkDestroySwapchainKHR(device, swapchain, pAllocator);
     }
 }

src/layer.cpp

@@ -9,6 +9,7 @@
 #include <unordered_map>
 #include <exception>
 #include <iostream>
+#include <cstdlib>
 #include <cstdint>
 #include <string>
 
@@ -103,7 +104,7 @@ namespace {
                     "Failed to get instance function pointer for vkCreateInstance");
 
             // NOLINTEND | skip initialization if the layer is disabled
-            if (!Config::activeConf.enable) {
+            if (!Config::currentConf.has_value() || std::getenv("LSFG_BENCHMARK")) {
                 auto res = next_vkCreateInstance(pCreateInfo, pAllocator, pInstance);
                 initInstanceFunc(*pInstance, "vkCreateDevice", &next_vkCreateDevice);
                 return res;
@@ -182,7 +183,7 @@ namespace {
             next_vSetDeviceLoaderData = layerDesc2->u.pfnSetDeviceLoaderData;
 
             // NOLINTEND | skip initialization if the layer is disabled
-            if (!Config::activeConf.enable)
+            if (!Config::currentConf.has_value() || std::getenv("LSFG_BENCHMARK"))
                 return next_vkCreateDevice(physicalDevice, pCreateInfo, pAllocator, pDevice);
 
             // create device
@@ -262,7 +263,7 @@ PFN_vkVoidFunction layer_vkGetInstanceProcAddr(VkInstance instance, const char*
         return it->second;
 
     it = Hooks::hooks.find(name);
-    if (it != Hooks::hooks.end() && Config::activeConf.enable)
+    if (it != Hooks::hooks.end() && (Config::currentConf.has_value() && !std::getenv("LSFG_BENCHMARK")))
         return it->second;
 
     return next_vkGetInstanceProcAddr(instance, pName);
@@ -275,7 +276,7 @@ PFN_vkVoidFunction layer_vkGetDeviceProcAddr(VkDevice device, const char* pName)
         return it->second;
 
     it = Hooks::hooks.find(name);
-    if (it != Hooks::hooks.end() && Config::activeConf.enable)
+    if (it != Hooks::hooks.end() && (Config::currentConf.has_value() && !std::getenv("LSFG_BENCHMARK")))
         return it->second;
 
     return next_vkGetDeviceProcAddr(device, pName);

src/main.cpp

@@ -18,41 +18,17 @@ namespace {
         std::cerr << std::unitbuf;
 
         // read configuration
-        const std::string file = Utils::getConfigFile();
         try {
-            Config::updateConfig(file);
+            Config::updateConfig(Utils::getConfigFile(), Utils::getProcessName());
         } catch (const std::exception& e) {
             std::cerr << "lsfg-vk: An error occured while trying to parse the configuration, IGNORING:\n";
             std::cerr << "- " << e.what() << '\n';
-            return; // default configuration will unload
-        }
-
-        const auto name = Utils::getProcessName();
-        try {
-            Config::activeConf = Config::getConfig(name);
-        } catch (const std::exception& e) {
-            std::cerr << "lsfg-vk: The configuration for " << name.first << " is invalid, IGNORING:\n";
-            std::cerr << e.what() << '\n';
-            return; // default configuration will unload
+            return;
         }
 
         // exit silently if not enabled
-        auto& conf = Config::activeConf;
-        if (!conf.enable && name.second != "benchmark")
-            return; // default configuration will unload
-
-        // print config
-        std::cerr << "lsfg-vk: Loaded configuration for " << name.first << ":\n";
-        if (!conf.dll.empty()) std::cerr << "  Using DLL from: " << conf.dll << '\n';
-        if (conf.no_fp16) std::cerr << "  FP16 Acceleration: Force-disabled\n";
-        std::cerr << "  Multiplier: " << conf.multiplier << '\n';
-        std::cerr << "  Flow Scale: " << conf.flowScale << '\n';
-        std::cerr << "  Performance Mode: " << (conf.performance ? "Enabled" : "Disabled") << '\n';
-        std::cerr << "  HDR Mode: " << (conf.hdr ? "Enabled" : "Disabled") << '\n';
-        if (conf.e_present != 2) std::cerr << "  ! Present Mode: " << conf.e_present << '\n';
-
-        // remove mesa var in favor of config
-        unsetenv("MESA_VK_WSI_PRESENT_MODE"); // NOLINT
+        if (!Config::currentConf.has_value())
+            return;
 
         // load shaders
         try {
@@ -105,6 +81,5 @@ namespace {
             }
         });
         benchmark.detach();
-        conf.enable = false;
     }
 }

src/utils/benchmark.cpp

@@ -19,7 +19,10 @@
 using namespace Benchmark;
 
 void Benchmark::run(uint32_t width, uint32_t height) {
-    const auto& conf = Config::activeConf;
+    if (!Config::currentConf.has_value())
+        _exit(1); // not possible
+    const auto& globalConf = Config::globalConf;
+    const auto& conf = *Config::currentConf;
 
     auto* lsfgInitialize = LSFG_3_1::initialize;
     auto* lsfgCreateContext = LSFG_3_1::createContext;
@@ -41,7 +44,7 @@ void Benchmark::run(uint32_t width, uint32_t height) {
     lsfgInitialize(
         deviceUUID, // some magic number if not given
         conf.hdr, 1.0F / conf.flowScale, conf.multiplier - 1,
-        conf.no_fp16,
+        globalConf.no_fp16,
         Extract::getShader
     );
     const int32_t ctx = lsfgCreateContext(-1, -1, {},

src/utils/utils.cpp

@@ -209,17 +209,17 @@ void Utils::resetLimitN(const std::string& id) noexcept {
 }
 
 std::pair<std::string, std::string> Utils::getProcessName() {
-    // check override first
-    const char* process_name = std::getenv("LSFG_PROCESS");
-    if (process_name && *process_name != '\0')
-        return { process_name, process_name };
-
-    // then check benchmark flag
+    // check benchmark flag
     const char* benchmark_flag = std::getenv("LSFG_BENCHMARK");
     if (benchmark_flag)
         return { "benchmark", "benchmark" };
     std::array<char, 4096> exe{};
 
+    // then check override
+    const char* process_name = std::getenv("LSFG_PROCESS");
+    if (process_name && *process_name != '\0')
+        return { process_name, process_name };
+
     // find executed binary
     const ssize_t exe_len = readlink("/proc/self/exe", exe.data(), exe.size() - 1);
     if (exe_len <= 0)

test/CMakeLists.txt

@@ -5,6 +5,10 @@ if(NOT LSFGVK_EXCESS_DEBUG)
     set(CMAKE_CXX_VISIBILITY_PRESET "hidden")
 endif()
 
+if(LSFGVK_EXCESS_DEBUG)
+    add_compile_definitions(LSFGVK_EXCESS_DEBUG)
+endif()
+
 project(lsfg-vk-test
     DESCRIPTION "Test: lsfg-vk"
     LANGUAGES CXX)

thirdparty/pe-parse

@@ -1 +0,0 @@
-Subproject commit 31ac5966503689d5693cd9fb520bd525a8710e17

thirdparty/toml11

@@ -1 +0,0 @@
-Subproject commit be08ba2be2a964edcdb3d3e3ea8d100abc26f286

thirdparty/volk

@@ -1 +0,0 @@
-Subproject commit be3dbd49bf77052665e96b6c7484af855e7e5f67