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13 Commits

Author SHA1 Message Date
ee54e3de34 Merge pull request #86 from orange-cpp/feature/improved_pe_scanner_interface
Feature/improved pe scanner interface
2025-10-12 20:20:28 +03:00
7b0af9cf66 Removes unnecessary code in PE scanner
Simplifies the PePatternScanner class by removing extraneous code.
This cleans up the codebase and improves readability.
2025-10-12 20:00:52 +03:00
563ae0a656 Moves namespace declaration to end of file
Refactors the source file layout to improve readability and consistency.
Moves the namespace declaration to the end of the file.
2025-10-12 19:59:47 +03:00
b9e2307d7a Organizes PE scanner code into namespaces
Refactors the PE scanner implementation to group related definitions and functions within namespaces.

This improves code organization and readability, particularly for internal PE handling and scanning logic.

The included link to the `linux-pe` repository served as a reference during this refactoring.
2025-10-12 19:57:47 +03:00
cd0a864e7c Refactors PE scanner to eliminate redundant section extraction
Simplifies the PE pattern scanner by removing the redundant `extract_section_from_pe_file` function.

The extracted data is now returned directly from a new `ExtractedSection` struct within the main scanning function, streamlining the code and reducing duplication. This improves readability and maintainability of the PE scanner.
2025-10-12 19:53:41 +03:00
5c30f57c4c Merge pull request #85 from orange-cpp/feature/hide_pe_defs
Feature/hide pe defs
2025-10-12 19:46:22 +03:00
3dcd033616 Removes redundant NtHeaderVariant field declarations
Simplifies NtHeaderVariant structure by removing redundant field declarations.
This improves code readability and reduces unnecessary code duplication.
2025-10-12 19:43:29 +03:00
f10dc60772 Removes redundant NtHeaderVariant declaration
Moves the `NtHeaderVariant` definition outside the unnamed namespace,
to avoid repetition and improve code consistency.
This change is part of the ongoing work on feature/hide_pe_defs.
2025-10-12 19:42:53 +03:00
37f624956b Removes PE definition files
Removes the PE definition files and related functions as they are no longer needed.
2025-10-12 19:41:18 +03:00
20dc4e6730 Updates omath version to 3.9.2 2025-10-11 17:22:16 +03:00
f6c607d84c Uses source engine camera trait for view angle calculation
Replaces the custom `view_angle_to` function with `omath::source_engine::CameraTrait::calc_look_at_angle` for vector3 view angle calculations.
This change aligns with source engine conventions and improves code consistency.
2025-10-11 15:46:52 +03:00
81ed5f80d7 Merge pull request #84 from luadebug/patch-1
internal_rev_object.hpp: do not use __fastcall for non-Windows platforms
2025-10-10 07:47:25 +03:00
Saikari
e385686323 Update internal_rev_object.hpp 2025-10-09 21:34:19 +03:00
14 changed files with 265 additions and 370 deletions

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@@ -1,6 +1,6 @@
cmake_minimum_required(VERSION 3.26)
project(omath VERSION 3.8.2 LANGUAGES CXX)
project(omath VERSION 3.9.2 LANGUAGES CXX)
include(CMakePackageConfigHelpers)
include(CheckCXXCompilerFlag)
@@ -28,22 +28,23 @@ if (OMATH_USE_AVX2 AND NOT COMPILER_SUPPORTS_AVX2)
set(OMATH_USE_AVX2 OFF CACHE BOOL "Omath will use AVX2 to boost performance" FORCE)
endif ()
message(STATUS "[${PROJECT_NAME}]: Building on ${CMAKE_HOST_SYSTEM_NAME}, compiler ${CMAKE_CXX_COMPILER_ID}")
message(STATUS "[${PROJECT_NAME}]: Warnings as errors ${OMATH_THREAT_WARNING_AS_ERROR}")
message(STATUS "[${PROJECT_NAME}]: Build unit tests ${OMATH_BUILD_TESTS}")
message(STATUS "[${PROJECT_NAME}]: Build benchmark ${OMATH_BUILD_BENCHMARK}")
message(STATUS "[${PROJECT_NAME}]: As dynamic library ${OMATH_BUILD_AS_SHARED_LIBRARY}")
message(STATUS "[${PROJECT_NAME}]: Static C++ runtime ${OMATH_STATIC_MSVC_RUNTIME_LIBRARY}")
message(STATUS "[${PROJECT_NAME}]: CMake unity build ${OMATH_USE_UNITY_BUILD}")
message(STATUS "[${PROJECT_NAME}]: Example projects ${OMATH_BUILD_EXAMPLES}")
message(STATUS "[${PROJECT_NAME}]: AVX2 feature status ${OMATH_USE_AVX2}")
message(STATUS "[${PROJECT_NAME}]: ImGUI integration feature status ${OMATH_IMGUI_INTEGRATION}")
message(STATUS "[${PROJECT_NAME}]: Legacy features support ${OMATH_ENABLE_LEGACY}")
if (${PROJECT_IS_TOP_LEVEL})
message(STATUS "[${PROJECT_NAME}]: Building on ${CMAKE_HOST_SYSTEM_NAME}, compiler ${CMAKE_CXX_COMPILER_ID}")
message(STATUS "[${PROJECT_NAME}]: Warnings as errors ${OMATH_THREAT_WARNING_AS_ERROR}")
message(STATUS "[${PROJECT_NAME}]: Build unit tests ${OMATH_BUILD_TESTS}")
message(STATUS "[${PROJECT_NAME}]: Build benchmark ${OMATH_BUILD_BENCHMARK}")
message(STATUS "[${PROJECT_NAME}]: As dynamic library ${OMATH_BUILD_AS_SHARED_LIBRARY}")
message(STATUS "[${PROJECT_NAME}]: Static C++ runtime ${OMATH_STATIC_MSVC_RUNTIME_LIBRARY}")
message(STATUS "[${PROJECT_NAME}]: CMake unity build ${OMATH_USE_UNITY_BUILD}")
message(STATUS "[${PROJECT_NAME}]: Example projects ${OMATH_BUILD_EXAMPLES}")
message(STATUS "[${PROJECT_NAME}]: AVX2 feature status ${OMATH_USE_AVX2}")
message(STATUS "[${PROJECT_NAME}]: ImGUI integration feature status ${OMATH_IMGUI_INTEGRATION}")
message(STATUS "[${PROJECT_NAME}]: Legacy features support ${OMATH_ENABLE_LEGACY}")
endif ()
file(GLOB_RECURSE OMATH_SOURCES CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/source/*.cpp")
file(GLOB_RECURSE OMATH_HEADERS CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/include/*.hpp")
if (OMATH_BUILD_AS_SHARED_LIBRARY)
add_library(${PROJECT_NAME} SHARED ${OMATH_SOURCES} ${OMATH_HEADERS})
else ()
@@ -111,8 +112,8 @@ if (OMATH_USE_AVX2)
target_compile_options(${PROJECT_NAME} PUBLIC -msimd128 -mavx2)
elseif (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang|AppleClang")
target_compile_options(${PROJECT_NAME} PUBLIC -mfma -mavx2)
endif()
endif()
endif ()
endif ()
target_compile_features(${PROJECT_NAME} PUBLIC cxx_std_23)

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@@ -1 +1 @@
3.8.2
3.9.2

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@@ -245,15 +245,6 @@ namespace omath
return std::make_tuple(this->x, this->y, z);
}
[[nodiscard]] Vector3 view_angle_to(const Vector3& other) const noexcept
{
const auto distance = distance_to(other);
const auto delta = other - *this;
return {angles::radians_to_degrees(std::asin(delta.z / distance)),
angles::radians_to_degrees(std::atan2(delta.y, delta.x)), 0};
}
[[nodiscard]]
bool operator<(const Vector3& other) const noexcept
{

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@@ -29,7 +29,7 @@ namespace omath::rev_eng
#ifdef _MSC_VER
using VirtualMethodType = ReturnType(__thiscall*)(void*, decltype(arg_list)...);
#else
using VirtualMethodType = ReturnType(__fastcall*)(void*, decltype(arg_list)...);
using VirtualMethodType = ReturnType(*)(void*, decltype(arg_list)...);
#endif
return (*reinterpret_cast<VirtualMethodType**>(this))[id](this, arg_list...);
}

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@@ -1,5 +0,0 @@
//
// Created by Vlad on 10/8/2025.
//
#pragma once

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@@ -1,32 +0,0 @@
//
// Created by Vlad on 10/7/2025.
//
#pragma once
#include <cstdint>
namespace omath::system::pe
{
struct DosHeader final
{
std::uint16_t e_magic;
std::uint16_t e_cblp;
std::uint16_t e_cp;
std::uint16_t e_crlc;
std::uint16_t e_cparhdr;
std::uint16_t e_minalloc;
std::uint16_t e_maxalloc;
std::uint16_t e_ss;
std::uint16_t e_sp;
std::uint16_t e_csum;
std::uint16_t e_ip;
std::uint16_t e_cs;
std::uint16_t e_lfarlc;
std::uint16_t e_ovno;
std::uint16_t e_res[4];
std::uint16_t e_oemid;
std::uint16_t e_oeminfo;
std::uint16_t e_res2[10];
std::uint32_t e_lfanew;
};
}

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@@ -1,56 +0,0 @@
//
// Created by Vlad on 10/7/2025.
//
#pragma once
#include <cstdint>
namespace omath::system::pe
{
enum class MachineId : std::uint16_t
{
UNKNOWN = 0x0000,
TARGET_HOST = 0x0001, // Useful for indicating we want to interact with the host and not a WoW guest.
I386 = 0x014C, // Intel 386.
R3000 = 0x0162, // MIPS little-endian, 0x160 big-endian
R4000 = 0x0166, // MIPS little-endian
R10000 = 0x0168, // MIPS little-endian
WCEMIPSV2 = 0x0169, // MIPS little-endian WCE v2
ALPHA = 0x0184, // Alpha_AXP
SH3 = 0x01A2, // SH3 little-endian
SH3DSP = 0x01A3,
SH3E = 0x01A4, // SH3E little-endian
SH4 = 0x01A6, // SH4 little-endian
SH5 = 0x01A8, // SH5
ARM = 0x01C0, // ARM Little-Endian
THUMB = 0x01C2, // ARM Thumb/Thumb-2 Little-Endian
ARMNT = 0x01C4, // ARM Thumb-2 Little-Endian
AM33 = 0x01D3,
POWERPC = 0x01F0, // IBM PowerPC Little-Endian
POWERPCP = 0x01F1,
IA64 = 0x0200, // Intel 64
MIPS16 = 0x0266, // MIPS
ALPHA64 = 0x0284, // ALPHA64
MIPSFPU = 0x0366, // MIPS
MIPSFPU16 = 0x0466, // MIPS
AXP64 = 0x0284,
TRICORE = 0x0520, // Infineon
CEF = 0x0CEF,
EBC = 0x0EBC, // EFI Byte Code
AMD64 = 0x8664, // AMD64 (K8)
M32R = 0x9041, // M32R little-endian
ARM64 = 0xAA64, // ARM64 Little-Endian
CEE = 0xC0EE,
};
struct FileHeader final
{
MachineId machine;
uint16_t num_sections;
uint32_t timedate_stamp;
uint32_t ptr_symbols;
uint32_t num_symbols;
uint16_t size_optional_header;
std::uint16_t characteristics;
};
}

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@@ -1,23 +0,0 @@
//
// Created by Vlad on 10/9/2025.
//
#pragma once
#include "file_header.hpp"
#include "optional_header.hpp"
namespace omath::system::pe
{
enum class NtArchitecture
{
x32_bit,
x64_bit,
};
template<NtArchitecture architecture>
struct ImageNtHeaders final
{
std::uint32_t signature;
FileHeader file_header;
OptionalHeader<architecture == NtArchitecture::x64_bit> optional_header;
};
} // namespace omath::system::pe

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@@ -1,118 +0,0 @@
//
// Created by Vlad on 10/8/2025.
//
#pragma once
#include <cstdint>
namespace omath::system::pe
{
static constexpr std::uint16_t opt_hdr32_magic = 0x010B;
static constexpr std::uint16_t opt_hdr64_magic = 0x020B;
enum class SubsystemId : std::uint16_t
{
unknown = 0x0000,
native = 0x0001,
windows_gui = 0x0002,
windows_cui = 0x0003,
os2_cui = 0x0005,
posix_cui = 0x0007,
native_windows = 0x0008,
windows_ce_gui = 0x0009,
efi_application = 0x000A,
efi_boot_service_driver = 0x000B,
efi_runtime_driver = 0x000C,
efi_rom = 0x000D,
xbox = 0x000E,
windows_boot_application = 0x0010,
xbox_code_catalog = 0x0011,
};
struct DataDirectory final
{
std::uint32_t rva;
std::uint32_t size;
};
struct OptionalHeaderX64 final
{
// Standard fields.
std::uint16_t magic;
std::uint16_t linker_version;
std::uint32_t size_code;
std::uint32_t size_init_data;
std::uint32_t size_uninit_data;
std::uint32_t entry_point;
std::uint32_t base_of_code;
// NT additional fields.
std::uint64_t image_base;
std::uint32_t section_alignment;
std::uint32_t file_alignment;
std::uint32_t os_version;
std::uint32_t img_version;
std::uint32_t subsystem_version;
std::uint32_t win32_version_value;
std::uint32_t size_image;
std::uint32_t size_headers;
std::uint32_t checksum;
SubsystemId subsystem;
std::uint16_t characteristics;
std::uint64_t size_stack_reserve;
std::uint64_t size_stack_commit;
std::uint64_t size_heap_reserve;
std::uint64_t size_heap_commit;
std::uint32_t ldr_flags;
std::uint32_t num_data_directories;
DataDirectory data_directories[16];
};
struct OptionalHeaderX86 final
{
// Standard fields.
uint16_t magic;
uint16_t linker_version;
uint32_t size_code;
uint32_t size_init_data;
uint32_t size_uninit_data;
uint32_t entry_point;
uint32_t base_of_code;
uint32_t base_of_data;
// NT additional fields.
uint32_t image_base;
uint32_t section_alignment;
uint32_t file_alignment;
std::uint32_t os_version;
std::uint32_t img_version;
std::uint32_t subsystem_version;
uint32_t win32_version_value;
uint32_t size_image;
uint32_t size_headers;
uint32_t checksum;
SubsystemId subsystem;
std::uint16_t characteristics;
uint32_t size_stack_reserve;
uint32_t size_stack_commit;
uint32_t size_heap_reserve;
uint32_t size_heap_commit;
uint32_t ldr_flags;
uint32_t num_data_directories;
DataDirectory data_directories[16];
};
template<bool x64 = true>
using OptionalHeader = std::conditional_t<x64, OptionalHeaderX64, OptionalHeaderX86>;
} // namespace omath::system::pe

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@@ -1,32 +0,0 @@
//
// Created by Vlad on 10/8/2025.
//
#pragma once
#include <cstdint>
// Section header
//
namespace omath::system::pe
{
struct SectionHeader final
{
char name[8];
union
{
std::uint32_t physical_address;
std::uint32_t virtual_size;
};
std::uint32_t virtual_address;
std::uint32_t size_raw_data;
std::uint32_t ptr_raw_data;
std::uint32_t ptr_relocs;
std::uint32_t ptr_line_numbers;
std::uint32_t num_relocs;
std::uint32_t num_line_numbers;
std::uint32_t characteristics;
};
}

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@@ -7,7 +7,6 @@
#include <filesystem>
#include <optional>
#include <string_view>
#include <vector>
namespace omath
{
struct PeSectionScanResult
@@ -18,14 +17,6 @@ namespace omath
};
class PePatternScanner final
{
private:
struct Section
{
std::uint64_t virtual_base_addr;
std::uint64_t raw_base_addr;
std::vector<std::byte> data;
};
public:
[[nodiscard]]
static std::optional<std::uintptr_t> scan_for_pattern_in_loaded_module(const std::string_view& module_name,
@@ -35,9 +26,5 @@ namespace omath
static std::optional<PeSectionScanResult>
scan_for_pattern_in_file(const std::filesystem::path& path_to_file, const std::string_view& pattern,
const std::string_view& target_section_name = ".text");
[[nodiscard]]
static std::optional<Section> extract_section_from_pe_file(const std::filesystem::path& path_to_file,
const std::string_view& section_name);
};
} // namespace omath

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@@ -2,11 +2,8 @@
// Created by Vlad on 10/7/2025.
//
#include "omath/utility/pe_pattern_scan.hpp"
#include "omath/system/pe/image_nt_headers.hpp"
#include "omath/system/pe/section_header.hpp"
#include "omath/utility/pattern_scan.hpp"
#include <fstream>
#include <omath/system/pe/dos_header.hpp>
#include <span>
#include <stdexcept>
#include <variant>
@@ -14,22 +11,195 @@
#include <Windows.h>
#endif
using namespace omath::system::pe;
using NtHeaderVariant = std::variant<ImageNtHeaders<NtArchitecture::x64_bit>, ImageNtHeaders<NtArchitecture::x32_bit>>;
// Internal PE shit defines
// Big thx for linuxpe sources as ref
// Link: https://github.com/can1357/linux-pe
namespace
{
constexpr std::uint16_t opt_hdr32_magic = 0x010B;
constexpr std::uint16_t opt_hdr64_magic = 0x020B;
// Standard fields.
// ReSharper disable CppDeclaratorNeverUsed
struct DataDirectory final
{
std::uint32_t rva;
std::uint32_t size;
};
struct OptionalHeaderX64 final
{
std::uint16_t magic;
std::uint16_t linker_version;
std::uint32_t size_code;
std::uint32_t size_init_data;
std::uint32_t size_uninit_data;
std::uint32_t entry_point;
std::uint32_t base_of_code;
// NT additional fields.
std::uint64_t image_base;
std::uint32_t section_alignment;
std::uint32_t file_alignment;
std::uint32_t os_version;
std::uint32_t img_version;
std::uint32_t subsystem_version;
std::uint32_t win32_version_value;
std::uint32_t size_image;
std::uint32_t size_headers;
std::uint32_t checksum;
std::uint16_t subsystem;
std::uint16_t characteristics;
std::uint64_t size_stack_reserve;
std::uint64_t size_stack_commit;
std::uint64_t size_heap_reserve;
std::uint64_t size_heap_commit;
std::uint32_t ldr_flags;
std::uint32_t num_data_directories;
DataDirectory data_directories[16];
};
struct OptionalHeaderX86 final
{
// Standard fields.
std::uint16_t magic{};
std::uint16_t linker_version{};
std::uint32_t size_code{};
std::uint32_t size_init_data{};
std::uint32_t size_uninit_data{};
std::uint32_t entry_point{};
std::uint32_t base_of_code{};
std::uint32_t base_of_data{};
// NT additional fields.
std::uint32_t image_base{};
std::uint32_t section_alignment{};
std::uint32_t file_alignment{};
std::uint32_t os_version{};
std::uint32_t img_version{};
std::uint32_t subsystem_version{};
std::uint32_t win32_version_value{};
std::uint32_t size_image{};
std::uint32_t size_headers{};
std::uint32_t checksum{};
std::uint16_t subsystem{};
std::uint16_t characteristics{};
std::uint32_t size_stack_reserve{};
std::uint32_t size_stack_commit{};
std::uint32_t size_heap_reserve{};
std::uint32_t size_heap_commit{};
std::uint32_t ldr_flags{};
std::uint32_t num_data_directories{};
DataDirectory data_directories[16]{};
};
template<bool x64 = true>
using OptionalHeader = std::conditional_t<x64, OptionalHeaderX64, OptionalHeaderX86>;
struct FileHeader final
{
std::uint16_t machine;
std::uint16_t num_sections;
std::uint32_t timedate_stamp;
std::uint32_t ptr_symbols;
std::uint32_t num_symbols;
std::uint16_t size_optional_header;
std::uint16_t characteristics;
};
struct DosHeader final
{
std::uint16_t e_magic;
std::uint16_t e_cblp;
std::uint16_t e_cp;
std::uint16_t e_crlc;
std::uint16_t e_cparhdr;
std::uint16_t e_minalloc;
std::uint16_t e_maxalloc;
std::uint16_t e_ss;
std::uint16_t e_sp;
std::uint16_t e_csum;
std::uint16_t e_ip;
std::uint16_t e_cs;
std::uint16_t e_lfarlc;
std::uint16_t e_ovno;
std::uint16_t e_res[4];
std::uint16_t e_oemid;
std::uint16_t e_oeminfo;
std::uint16_t e_res2[10];
std::uint32_t e_lfanew;
};
enum class NtArchitecture
{
x32_bit,
x64_bit,
};
template<NtArchitecture architecture>
struct ImageNtHeaders final
{
std::uint32_t signature;
FileHeader file_header;
OptionalHeader<architecture == NtArchitecture::x64_bit> optional_header;
};
struct SectionHeader final
{
char name[8];
union
{
std::uint32_t physical_address;
std::uint32_t virtual_size;
};
std::uint32_t virtual_address;
std::uint32_t size_raw_data;
std::uint32_t ptr_raw_data;
std::uint32_t ptr_relocs;
std::uint32_t ptr_line_numbers;
std::uint32_t num_relocs;
std::uint32_t num_line_numbers;
std::uint32_t characteristics;
};
// ReSharper restore CppDeclaratorNeverUsed
using NtHeaderVariant =
std::variant<ImageNtHeaders<NtArchitecture::x64_bit>, ImageNtHeaders<NtArchitecture::x32_bit>>;
} // namespace
// Internal PE scanner functions
namespace
{
[[nodiscard]]
NtHeaderVariant get_nt_header_from_file(std::fstream& file, const DosHeader& dos_header)
std::optional<NtHeaderVariant> get_nt_header_from_file(std::fstream& file, const DosHeader& dos_header)
{
ImageNtHeaders<NtArchitecture::x32_bit> x86_headers;
ImageNtHeaders<NtArchitecture::x32_bit> x86_headers{};
file.seekg(dos_header.e_lfanew, std::ios::beg);
file.read(reinterpret_cast<char*>(&x86_headers), sizeof(x86_headers));
if (x86_headers.optional_header.magic == opt_hdr32_magic)
return x86_headers;
ImageNtHeaders<NtArchitecture::x64_bit> x64_headers;
if (x86_headers.optional_header.magic != opt_hdr64_magic)
return std::nullopt;
ImageNtHeaders<NtArchitecture::x64_bit> x64_headers{};
file.seekg(dos_header.e_lfanew, std::ios::beg);
file.read(reinterpret_cast<char*>(&x64_headers), sizeof(x64_headers));
@@ -48,6 +218,69 @@ namespace
constexpr std::uint32_t nt_hdr_magic = 0x4550;
return std::visit([](const auto& header) -> bool { return header.signature != nt_hdr_magic; }, variant);
}
struct ExtractedSection
{
std::uint64_t virtual_base_addr;
std::uint64_t raw_base_addr;
std::vector<std::byte> data;
};
[[nodiscard]]
std::optional<ExtractedSection> extract_section_from_pe_file(const std::filesystem::path& path_to_file,
const std::string_view& section_name)
{
std::fstream file(path_to_file, std::ios::binary | std::ios::in);
if (!file.is_open()) [[unlikely]]
return std::nullopt;
DosHeader dos_header{};
file.read(reinterpret_cast<char*>(&dos_header), sizeof(dos_header));
if (invalid_dos_header_file(dos_header)) [[unlikely]]
return std::nullopt;
const auto nt_headers = get_nt_header_from_file(file, dos_header);
if (!nt_headers)
return std::nullopt;
if (invalid_nt_header_file(nt_headers.value())) [[unlikely]]
return std::nullopt;
return std::visit(
[&file, &dos_header, &section_name](auto& concrete_headers) -> std::optional<ExtractedSection>
{
constexpr std::size_t size_of_signature = sizeof(concrete_headers.signature);
const auto offset_to_segment_table = dos_header.e_lfanew
+ concrete_headers.file_header.size_optional_header
+ sizeof(FileHeader) + size_of_signature;
file.seekg(static_cast<std::fstream::off_type>(offset_to_segment_table), std::ios::beg);
for (std::size_t i = 0; i < concrete_headers.file_header.num_sections; i++)
{
SectionHeader current_section{};
file.read(reinterpret_cast<char*>(&current_section), sizeof(current_section));
if (std::string_view(current_section.name) != section_name)
continue;
std::vector<std::byte> section_data(current_section.size_raw_data);
file.seekg(current_section.ptr_raw_data, std::ios::beg);
file.read(reinterpret_cast<char*>(section_data.data()),
static_cast<std::streamsize>(section_data.size()));
return ExtractedSection{.virtual_base_addr = current_section.virtual_address
+ concrete_headers.optional_header.image_base,
.raw_base_addr = current_section.ptr_raw_data,
.data = std::move(section_data)};
}
return std::nullopt;
},
nt_headers.value());
}
} // namespace
namespace omath
@@ -72,6 +305,7 @@ namespace omath
const auto scan_range = std::span{reinterpret_cast<std::byte*>(base_address) + start, scan_size};
// ReSharper disable once CppTooWideScopeInitStatement
const auto result = PatternScanner::scan_for_pattern(scan_range, pattern);
if (result != scan_range.cend())
@@ -103,56 +337,4 @@ namespace omath
.raw_base_addr = pe_section->raw_base_addr,
.target_offset = offset};
}
std::optional<PePatternScanner::Section>
PePatternScanner::extract_section_from_pe_file(const std::filesystem::path& path_to_file,
const std::string_view& section_name)
{
std::fstream file(path_to_file, std::ios::binary | std::ios::in);
if (!file.is_open()) [[unlikely]]
return std::nullopt;
DosHeader dos_header{};
file.read(reinterpret_cast<char*>(&dos_header), sizeof(dos_header));
if (invalid_dos_header_file(dos_header)) [[unlikely]]
return std::nullopt;
const auto nt_headers = get_nt_header_from_file(file, dos_header);
if (invalid_nt_header_file(nt_headers)) [[unlikely]]
return std::nullopt;
return std::visit(
[&file, &dos_header, &section_name](auto& concrete_headers) -> std::optional<Section>
{
constexpr std::size_t size_of_signature = sizeof(concrete_headers.signature);
const auto offset_to_segment_table = dos_header.e_lfanew
+ concrete_headers.file_header.size_optional_header
+ sizeof(FileHeader) + size_of_signature;
file.seekg(static_cast<std::fstream::off_type>(offset_to_segment_table), std::ios::beg);
for (std::size_t i = 0; i < concrete_headers.file_header.num_sections; i++)
{
SectionHeader current_section{};
file.read(reinterpret_cast<char*>(&current_section), sizeof(current_section));
if (std::string_view(current_section.name) != section_name)
continue;
std::vector<std::byte> section_data(current_section.size_raw_data);
file.seekg(current_section.ptr_raw_data, std::ios::beg);
file.read(reinterpret_cast<char*>(section_data.data()),
static_cast<std::streamsize>(section_data.size()));
return Section{.virtual_base_addr = current_section.virtual_address
+ concrete_headers.optional_header.image_base,
.raw_base_addr = current_section.ptr_raw_data,
.data = std::move(section_data)};
}
return std::nullopt;
},
nt_headers);
}
} // namespace omath

View File

@@ -16,5 +16,4 @@ set_target_properties(${PROJECT_NAME} PROPERTIES
target_link_libraries(${PROJECT_NAME} PRIVATE gtest gtest_main omath::omath)
gtest_discover_tests(${PROJECT_NAME})

View File

@@ -1,6 +1,6 @@
#include <gtest/gtest.h>
#include <omath/projectile_prediction/proj_pred_engine_legacy.hpp>
#include <omath/engines/source_engine/traits/camera_trait.hpp>
TEST(UnitTestPrediction, PredictionTest)
{
constexpr omath::projectile_prediction::Target target{
@@ -10,8 +10,9 @@ TEST(UnitTestPrediction, PredictionTest)
const auto viewPoint =
omath::projectile_prediction::ProjPredEngineLegacy(400, 1.f / 1000.f, 50, 5.f).maybe_calculate_aim_point(proj, target);
const auto [pitch, yaw, _] = proj.m_origin.view_angle_to(viewPoint.value()).as_tuple();
EXPECT_NEAR(42.547142, pitch, 0.01f);
EXPECT_NEAR(-1.181189, yaw, 0.01f);
const auto [pitch, yaw, _] =omath::source_engine::CameraTrait::calc_look_at_angle(proj.m_origin, viewPoint.value());
EXPECT_NEAR(-42.547142, pitch.as_degrees(), 0.01f);
EXPECT_NEAR(-1.181189, yaw.as_degrees(), 0.01f);
}