feat: Added basic windows process memory provider

lib/libimhex/source/providers/provider.cpp

@@ -133,7 +133,7 @@ namespace hex::prv {
 
 
     u32 Provider::getPageCount() const {
-        return std::max(1.0, std::ceil(this->getActualSize() / double(PageSize)));
+        return (this->getActualSize() / PageSize) + (this->getActualSize() % PageSize != 0 ? 1 : 0);
     }
 
     u32 Provider::getCurrentPage() const {

plugins/builtin/include/content/helpers/provider_extra_data.hpp

@@ -45,7 +45,7 @@ namespace hex::plugin::builtin {
 
                 std::string sourceCode;
                 std::mutex runtimeMutex;
-                std::unique_ptr<pl::PatternLanguage> runtime;
+                std::unique_ptr<pl::PatternLanguage> runtime = std::make_unique<pl::PatternLanguage>();
                 std::vector<std::pair<pl::core::LogConsole::Level, std::string>> console;
                 bool executionDone = true;
 

plugins/builtin/include/content/providers/file_provider.hpp

@@ -23,8 +23,8 @@ namespace hex::plugin::builtin {
 
     class FileProvider : public hex::prv::Provider {
     public:
-        FileProvider() = default;;
-        ~FileProvider() override = default;;
+        FileProvider() = default;
+        ~FileProvider() override = default;
 
         [[nodiscard]] bool isAvailable() const override;
         [[nodiscard]] bool isReadable() const override;

plugins/builtin/include/content/providers/gdb_provider.hpp

@@ -13,7 +13,7 @@ namespace hex::plugin::builtin {
     class GDBProvider : public hex::prv::Provider {
     public:
         GDBProvider();
-        ~GDBProvider() override = default;;
+        ~GDBProvider() override = default;
 
         [[nodiscard]] bool isAvailable() const override;
         [[nodiscard]] bool isReadable() const override;

plugins/builtin/source/content/views/view_pattern_editor.cpp

@@ -140,7 +140,7 @@ namespace hex::plugin::builtin {
                 ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1);
 
                 auto &runtime = ProviderExtraData::getCurrent().patternLanguage.runtime;
-                if (runtime->isRunning()) {
+                if (runtime != nullptr && runtime->isRunning()) {
                     if (ImGui::IconButton(ICON_VS_DEBUG_STOP, ImGui::GetCustomColorVec4(ImGuiCustomCol_ToolbarRed)))
                         runtime->abort();
                 } else {

plugins/builtin/source/ui/hex_editor.cpp

@@ -715,7 +715,7 @@ namespace hex::plugin::builtin::ui {
 
                         ImGui::BeginDisabled(pageCount <= 1);
                         {
-                            if (ImGui::SliderScalar("##page_selection", ImGuiDataType_U32, &page, &MinPage, &pageCount, hex::format("%d / {}", pageCount).c_str()))
+                            if (ImGui::SliderScalar("##page_selection", ImGuiDataType_U32, &page, &MinPage, &pageCount, hex::format("0x%llX / 0x{:02X}", pageCount).c_str()))
                                 this->m_provider->setCurrentPage(page - 1);
                         }
                         ImGui::EndDisabled();

plugins/windows/CMakeLists.txt

@@ -13,6 +13,9 @@ if (WIN32)
 
             source/content/ui_items.cpp
             source/content/settings_entries.cpp
+            source/content/providers.cpp
+
+            source/content/providers/process_memory_provider.cpp
     )
 
     # Add additional include directories here #

plugins/windows/include/content/providers/process_memory_provider.hpp

@@ -0,0 +1,82 @@
+#pragma once
+
+#include <hex/providers/provider.hpp>
+#include <hex/api/localization.hpp>
+
+#include <windows.h>
+
+#include <array>
+#include <mutex>
+#include <string_view>
+#include <thread>
+
+namespace hex::plugin::windows {
+
+    class ProcessMemoryProvider : public hex::prv::Provider {
+    public:
+        ProcessMemoryProvider() = default;
+        ~ProcessMemoryProvider() override = default;
+
+        [[nodiscard]] bool isAvailable() const override { return this->m_processHandle != nullptr; }
+        [[nodiscard]] bool isReadable() const override { return true; }
+        [[nodiscard]] bool isWritable() const override { return true; }
+        [[nodiscard]] bool isResizable() const override { return false; }
+        [[nodiscard]] bool isSavable() const override { return false; }
+
+        void read(u64 address, void *buffer, size_t size, bool) override { this->readRaw(address, buffer, size); }
+        void write(u64 address, const void *buffer, size_t size) override { this->writeRaw(address, buffer, size); }
+
+        void readRaw(u64 address, void *buffer, size_t size) override;
+        void writeRaw(u64 address, const void *buffer, size_t size) override;
+        [[nodiscard]] size_t getActualSize() const override { return 0xFFFF'FFFF'FFFF;  }
+
+        void save() override {}
+        void saveAs(const std::fs::path &) override {}
+
+        [[nodiscard]] std::string getName() const override { return "hex.windows.provider.process_memory"_lang; }
+        [[nodiscard]] std::vector<std::pair<std::string, std::string>> getDataInformation() const override {
+            return {
+                    { "hex.windows.provider.process_memory.process_name"_lang, this->m_selectedProcess->name },
+                    { "hex.windows.provider.process_memory.process_id"_lang, std::to_string(this->m_selectedProcess->id) }
+            };
+        }
+
+        [[nodiscard]] bool open() override;
+        void close() override;
+
+        [[nodiscard]] bool hasLoadInterface() const override { return true; }
+        [[nodiscard]] bool hasInterface() const override { return true; }
+        void drawLoadInterface() override;
+        void drawInterface() override;
+
+        void loadSettings(const nlohmann::json &) override {}
+        [[nodiscard]] nlohmann::json storeSettings(nlohmann::json) const override { return { }; }
+
+        [[nodiscard]] std::string getTypeName() const override {
+            return "hex.windows.provider.process_memory";
+        }
+
+        [[nodiscard]] std::pair<Region, bool> getRegionValidity(u64) const override;
+
+    private:
+        struct Process {
+            u32 id;
+            std::string name;
+        };
+
+        struct Module {
+            Region region;
+            std::string name;
+        };
+
+        std::vector<Process> m_processes;
+        std::optional<Process> m_selectedProcess;
+
+        std::vector<Module> m_modules;
+
+        HANDLE m_processHandle = nullptr;
+
+        bool m_enumerationFailed = false;
+    };
+
+}

plugins/windows/romfs/lang/en_US.json

@@ -3,6 +3,10 @@
     "country": "United States",
     "language": "English",
     "translations": {
+        "hex.windows.provider.process_memory": "Process Memory Provider",
+        "hex.windows.provider.process_memory.enumeration_failed": "Failed to enumerate processes",
+        "hex.windows.provider.process_memory.process_name": "Process Name",
+        "hex.windows.provider.process_memory.process_id": "Process ID",
         "hex.builtin.setting.general.context_menu_entry": "Windows context menu entry",
         "hex.windows.title_bar_button.debug_build": "Debug build",
         "hex.windows.title_bar_button.feedback": "Leave Feedback",

plugins/windows/source/content/providers.cpp

@@ -0,0 +1,11 @@
+#include <hex/api/content_registry.hpp>
+
+#include <content/providers/process_memory_provider.hpp>
+
+namespace hex::plugin::windows {
+
+    void registerProviders() {
+        ContentRegistry::Provider::add<ProcessMemoryProvider>();
+    }
+
+}

plugins/windows/source/content/providers/process_memory_provider.cpp

@@ -0,0 +1,148 @@
+#include <content/providers/process_memory_provider.hpp>
+
+#include <windows.h>
+#include <psapi.h>
+
+#include <imgui.h>
+#include <hex/helpers/utils.hpp>
+
+namespace hex::plugin::windows {
+
+    bool ProcessMemoryProvider::open() {
+        this->m_processHandle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, this->m_selectedProcess->id);
+        if (this->m_processHandle == nullptr)
+            return false;
+
+        DWORD numModules = 0;
+        std::vector<HMODULE> modules;
+
+        do {
+            modules.resize(modules.size() + 1024);
+            if (EnumProcessModules(this->m_processHandle, modules.data(), modules.size() * sizeof(HMODULE), &numModules) == FALSE) {
+                modules.clear();
+                break;
+            }
+        } while (numModules == modules.size() * sizeof(HMODULE));
+
+        modules.resize(numModules / sizeof(HMODULE));
+
+        for (auto &module : modules) {
+            MODULEINFO moduleInfo;
+            if (GetModuleInformation(this->m_processHandle, module, &moduleInfo, sizeof(MODULEINFO)) == FALSE)
+                continue;
+
+            char moduleName[MAX_PATH];
+            if (GetModuleFileNameExA(this->m_processHandle, module, moduleName, MAX_PATH) == FALSE)
+                continue;
+
+            this->m_modules.push_back({ { (u64)moduleInfo.lpBaseOfDll, (u64)moduleInfo.lpBaseOfDll + moduleInfo.SizeOfImage }, std::fs::path(moduleName).filename().string() });
+        }
+
+        return true;
+    }
+
+    void ProcessMemoryProvider::close() {
+        CloseHandle(this->m_processHandle);
+        this->m_processHandle = nullptr;
+    }
+
+    void ProcessMemoryProvider::readRaw(u64 address, void *buffer, size_t size) {
+        ReadProcessMemory(this->m_processHandle, (LPCVOID)address, buffer, size, nullptr);
+    }
+    void ProcessMemoryProvider::writeRaw(u64 address, const void *buffer, size_t size) {
+        WriteProcessMemory(this->m_processHandle, (LPVOID)address, buffer, size, nullptr);
+    }
+
+    std::pair<Region, bool> ProcessMemoryProvider::getRegionValidity(u64 address) const {
+        for (const auto &module : this->m_modules) {
+            if (module.region.overlaps({ address, 1 }))
+                return { module.region, true };
+        }
+
+        return { Region::Invalid(), false };
+    }
+
+    void ProcessMemoryProvider::drawLoadInterface() {
+        if (this->m_processes.empty() && !this->m_enumerationFailed) {
+            DWORD numProcesses = 0;
+            std::vector<DWORD> processIds;
+
+            do {
+                processIds.resize(processIds.size() + 1024);
+                if (EnumProcesses(processIds.data(), processIds.size() * sizeof(DWORD), &numProcesses) == FALSE) {
+                    processIds.clear();
+                    this->m_enumerationFailed = true;
+                    break;
+                }
+            } while (numProcesses == processIds.size() * sizeof(DWORD));
+
+            processIds.resize(numProcesses / sizeof(DWORD));
+
+            for (auto processId : processIds) {
+                HANDLE processHandle = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, processId);
+                if (processHandle == nullptr)
+                    continue;
+
+                ON_SCOPE_EXIT { CloseHandle(processHandle); };
+
+                char processName[MAX_PATH];
+                if (GetModuleBaseNameA(processHandle, nullptr, processName, MAX_PATH) == 0)
+                    continue;
+
+                this->m_processes.push_back({ processId, processName });
+            }
+        }
+
+        if (this->m_enumerationFailed) {
+            ImGui::TextUnformatted("hex.windows.provider.process_memory.enumeration_failed"_lang);
+        } else {
+            if (ImGui::BeginTable("##process_table", 2, ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_ScrollY, ImVec2(0, 500))) {
+                ImGui::TableSetupColumn("ID");
+                ImGui::TableSetupColumn("Name");
+                ImGui::TableHeadersRow();
+
+                for (auto &process : this->m_processes) {
+                    ImGui::PushID(process.id);
+
+                    ImGui::TableNextRow();
+                    ImGui::TableNextColumn();
+                    ImGui::Text("%d", process.id);
+
+                    ImGui::TableNextColumn();
+                    if (ImGui::Selectable(process.name.c_str(), this->m_selectedProcess.has_value() && process.id == this->m_selectedProcess->id, ImGuiSelectableFlags_SpanAllColumns))
+                        this->m_selectedProcess = process;
+
+                    ImGui::PopID();
+                }
+
+                ImGui::EndTable();
+            }
+
+        }
+    }
+
+    void ProcessMemoryProvider::drawInterface() {
+        if (ImGui::BeginTable("##module_table", 2, ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_ScrollY)) {
+            ImGui::TableSetupColumn("Base");
+            ImGui::TableSetupColumn("Name");
+            ImGui::TableHeadersRow();
+
+            for (auto &module : this->m_modules) {
+                ImGui::PushID(module.region.getStartAddress());
+
+                ImGui::TableNextRow();
+                ImGui::TableNextColumn();
+                ImGui::Text("0x%016llX - 0x%016llX", module.region.getStartAddress(), module.region.getEndAddress());
+
+                ImGui::TableNextColumn();
+                if (ImGui::Selectable(module.name.c_str(), false, ImGuiSelectableFlags_SpanAllColumns))
+                    ImHexApi::HexEditor::setSelection(module.region);
+
+                ImGui::PopID();
+            }
+
+            ImGui::EndTable();
+        }
+    }
+
+}

plugins/windows/source/plugin_windows.cpp

@@ -16,6 +16,7 @@ namespace hex::plugin::windows {
     void addFooterItems();
     void addTitleBarButtons();
     void registerSettings();
+    void registerProviders();
 }
 
 static void detectSystemTheme() {
@@ -68,6 +69,7 @@ IMHEX_PLUGIN_SETUP("Windows", "WerWolv", "Windows-only features") {
     addFooterItems();
     addTitleBarButtons();
     registerSettings();
+    registerProviders();
 
     detectSystemTheme();
     checkBorderlessWindowOverride();