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646a920e4c
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feature/vm
| Author | SHA1 | Date | |
|---|---|---|---|
| cb45b9bb04 | |||
| f3656f9d2c |
7
.idea/dictionaries/project.xml
generated
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7
.idea/dictionaries/project.xml
generated
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@@ -0,0 +1,7 @@
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<component name="ProjectDictionaryState">
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<dictionary name="project">
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<words>
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<w>vmprotect</w>
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</words>
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</dictionary>
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</component>
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@@ -31,6 +31,10 @@ option(OMATH_SUPRESS_SAFETY_CHECKS
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option(OMATH_ENABLE_COVERAGE "Enable coverage" OFF)
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option(OMATH_ENABLE_FORCE_INLINE
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"Will for compiler to make some functions to be force inlined no matter what" ON)
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option(OMATH_VMPROTECT_INTEGRATION
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"omath will use vmprotect sdk to protect sensitive parts of code from reverse engineering"
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OFF)
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if(VCPKG_MANIFEST_FEATURES)
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foreach(omath_feature IN LISTS VCPKG_MANIFEST_FEATURES)
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if(omath_feature STREQUAL "imgui")
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@@ -43,6 +47,8 @@ if(VCPKG_MANIFEST_FEATURES)
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set(OMATH_BUILD_BENCHMARK ON)
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elseif(omath_feature STREQUAL "examples")
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set(OMATH_BUILD_EXAMPLES ON)
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elseif(omath_feature STREQUAL "vmprotect")
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set(OMATH_VMPROTECT_INTEGRATION ON)
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endif()
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endforeach()
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@@ -107,6 +113,11 @@ if(OMATH_IMGUI_INTEGRATION)
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endif()
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if(OMATH_VMPROTECT_INTEGRATION)
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find_package(vmprotect_sdk CONFIG REQUIRED)
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target_link_libraries(${PROJECT_NAME} PUBLIC vmprotect_sdk::vmprotect_sdk)
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endif()
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if(OMATH_USE_AVX2)
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target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_USE_AVX2)
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endif()
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@@ -145,7 +145,7 @@
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"hidden": true,
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"inherits": ["linux-base", "vcpkg-base"],
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"cacheVariables": {
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"VCPKG_MANIFEST_FEATURES": "tests;imgui;avx2"
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"VCPKG_MANIFEST_FEATURES": "tests;imgui;avx2;vmprotect;examples"
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}
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},
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{
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@@ -2,7 +2,7 @@ add_subdirectory(example_barycentric)
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add_subdirectory(example_glfw3)
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add_subdirectory(example_proj_mat_builder)
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add_subdirectory(example_signature_scan)
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add_subdirectory(exmple_var_encryption)
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if(OMATH_ENABLE_VALGRIND)
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omath_setup_valgrind(example_projection_matrix_builder)
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omath_setup_valgrind(example_signature_scan)
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10
examples/exmple_var_encryption/CMakeLists.txt
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10
examples/exmple_var_encryption/CMakeLists.txt
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@@ -0,0 +1,10 @@
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project(example_var_encryption)
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add_executable(${PROJECT_NAME} main.cpp)
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set_target_properties(
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${PROJECT_NAME}
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PROPERTIES CXX_STANDARD 23
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ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/out/${CMAKE_BUILD_TYPE}"
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LIBRARY_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/out/${CMAKE_BUILD_TYPE}"
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RUNTIME_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/out/${CMAKE_BUILD_TYPE}")
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target_link_libraries(${PROJECT_NAME} PRIVATE omath::omath)
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15
examples/exmple_var_encryption/main.cpp
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15
examples/exmple_var_encryption/main.cpp
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@@ -0,0 +1,15 @@
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//
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// Created by orange on 24.02.2026.
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//
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#include "omath/containers/encrypted_variable.hpp"
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#include <omath/omath.hpp>
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#include <print>
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int main()
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{
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OMATH_DEF_CRYPT_VAR(int, 64) var{5};
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var.encrypt();
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std::println("{}", var.value());
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var.decrypt();
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std::println("{}", var.value());
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return var.value();
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}
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@@ -14,15 +14,11 @@ namespace omath::collision
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Simplex<VertexType> simplex; // valid only if hit == true and size==4
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};
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struct GjkSettings final
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{
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float epsilon = 1e-6f;
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std::size_t max_iterations = 64;
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};
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template<class ColliderInterfaceType>
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class GjkAlgorithm final
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{
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using VectorType = ColliderInterfaceType::VectorType;
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public:
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[[nodiscard]]
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static VectorType find_support_vertex(const ColliderInterfaceType& collider_a,
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@@ -40,8 +36,7 @@ namespace omath::collision
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[[nodiscard]]
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static GjkHitInfo<VectorType> is_collide_with_simplex_info(const ColliderInterfaceType& collider_a,
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const ColliderInterfaceType& collider_b,
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const GjkSettings& settings = {})
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const ColliderInterfaceType& collider_b)
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{
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auto support = find_support_vertex(collider_a, collider_b, VectorType{1, 0, 0});
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@@ -50,11 +45,11 @@ namespace omath::collision
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auto direction = -support;
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for (std::size_t iteration = 0; iteration < settings.max_iterations; ++iteration)
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while (true)
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{
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support = find_support_vertex(collider_a, collider_b, direction);
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if (support.dot(direction) <= settings.epsilon)
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if (support.dot(direction) <= 0.f)
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return {false, simplex};
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simplex.push_front(support);
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@@ -62,7 +57,6 @@ namespace omath::collision
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if (simplex.handle(direction))
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return {true, simplex};
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}
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return {false, simplex};
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}
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};
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} // namespace omath::collision
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@@ -46,26 +46,9 @@ namespace omath::collision
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[[nodiscard]]
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const VertexType& find_furthest_vertex(const VectorType& direction) const
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{
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// The support query arrives in world space, but vertex positions are stored
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// in local space. We need argmax_v { world(v) · d }.
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//
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// world(v) = M·v (ignoring translation, which is constant across vertices)
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// world(v) · d = v · Mᵀ·d
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//
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// So we transform the direction to local space once — O(1) — then compare
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// raw local positions, which is far cheaper than calling
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// vertex_position_to_world_space (full 4×4 multiply) for every vertex.
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//
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// d_local = upper-left 3×3 of M, transposed, times d_world:
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// d_local[j] = sum_i M.at(i,j) * d[i] (i.e. column j of M dotted with d)
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const auto& m = m_mesh.get_to_world_matrix();
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const VectorType d_local = {
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m[0, 0] * direction.x + m[1, 0] * direction.y + m[2, 0] * direction.z,
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m[0, 1] * direction.x + m[1, 1] * direction.y + m[2, 1] * direction.z,
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m[0, 2] * direction.x + m[1, 2] * direction.y + m[2, 2] * direction.z,
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};
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return *std::ranges::max_element(m_mesh.m_vertex_buffer, [&d_local](const auto& first, const auto& second)
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{ return first.position.dot(d_local) < second.position.dot(d_local); });
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return *std::ranges::max_element(
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m_mesh.m_vertex_buffer, [&direction](const auto& first, const auto& second)
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{ return first.position.dot(direction) < second.position.dot(direction); });
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}
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MeshType m_mesh;
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};
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@@ -2,10 +2,14 @@
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// Created by Vladislav on 04.01.2026.
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//
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#pragma once
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#include <VMProtectSDK.h>
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#include <array>
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#include <cstddef>
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#include <cstdint>
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#include <span>
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#include <source_location>
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#ifdef OMATH_ENABLE_FORCE_INLINE
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#ifdef _MSC_VER
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#define OMATH_FORCE_INLINE __forceinline
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@@ -110,16 +114,18 @@ namespace omath
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bool m_is_encrypted{};
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value_type m_data{};
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OMATH_FORCE_INLINE constexpr void xor_contained_var_by_key()
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OMATH_FORCE_INLINE void xor_contained_var_by_key()
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{
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VMProtectBeginVirtualization(nullptr);
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// Safe, keeps const-correctness, and avoids reinterpret_cast issues
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auto bytes = std::as_writable_bytes(std::span<value_type, 1>{&m_data, 1});
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for (std::size_t i = 0; i < bytes.size(); ++i)
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{
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const std::uint8_t k = static_cast<std::uint8_t>(key[i % key_size] + (i * key_size));
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const auto k = static_cast<std::uint8_t>(key[i % key_size] + (i * key_size));
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bytes[i] ^= static_cast<std::byte>(k);
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}
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VMProtectEnd();
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}
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public:
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@@ -134,7 +140,7 @@ namespace omath
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return m_is_encrypted;
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}
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OMATH_FORCE_INLINE constexpr void decrypt()
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OMATH_FORCE_INLINE void decrypt()
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{
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if (!m_is_encrypted)
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return;
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@@ -142,7 +148,7 @@ namespace omath
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m_is_encrypted = false;
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}
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OMATH_FORCE_INLINE constexpr void encrypt()
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OMATH_FORCE_INLINE void encrypt()
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{
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if (m_is_encrypted)
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return;
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@@ -8,6 +8,7 @@
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#include <utility>
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#include <variant>
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#include <vector>
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#include <VMProtectSDK.h>
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#pragma pack(push, 1)
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@@ -1,7 +1,7 @@
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{
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"default-registry": {
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"kind": "git",
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"baseline": "b1b19307e2d2ec1eefbdb7ea069de7d4bcd31f01",
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"baseline": "05442024c3fda64320bd25d2251cc9807b84fb6f",
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"repository": "https://github.com/microsoft/vcpkg"
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},
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"registries": [
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11
vcpkg.json
11
vcpkg.json
@@ -17,9 +17,16 @@
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],
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"features": {
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"avx2": {
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"description": "Omath will use AVX2 to boost performance",
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"description": "omath will use AVX2 to boost performance",
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"supports": "!arm"
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},
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"vmprotect": {
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"description": "omath will use vmprotect sdk to protect sensitive parts of code from reverse engineering",
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"supports": "windows | linux | osx | android",
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"dependencies": [
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"orange-vmprotect-sdk"
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]
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},
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"benchmark": {
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"description": "Build benchmarks",
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"dependencies": [
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@@ -35,7 +42,7 @@
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]
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},
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"imgui": {
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"description": "Omath will define method to convert omath types to imgui types",
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"description": "omath will define method to convert omath types to imgui types",
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"dependencies": [
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"imgui"
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]
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