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feature/scene-streaming-format
maszyna/CMakeLists.txt
maj00r b877bc0772 Cook the ground into a quadtree of mesh tiles, and keep the mesh the scenery drew 
The ground in a scenery is already an irregular mesh, so the cook keeps it: it cuts the
triangles along the tile grid, welds what coincides, and builds each coarser level by
collapsing edges. Nothing is resampled, nothing is interpolated, and a hole the scenery left
stays a hole. What was here before threw the triangles away, kept their vertices and built a
fresh Delaunay triangulation over them, which filled every hole, merged the two heights of
every retaining wall into one, and - because it never erased the super-triangle - emitted
indices three too large together with triangles reaching out to the artificial corners.

Tiles form a quadtree, as Cesium Quantized Mesh intends. A distant tile is a large one, so the
horizon costs tens of tiles rather than the thousands a fixed grid needed, and the level to
draw follows from the tile's own geometric error against what the screen can resolve - which is
what the format carries that field for. Every vertex on a tile's border survives into all of
its coarser levels, and so does every edge between two of them, so two neighbours drawn at
different levels share their border exactly: there is nothing to stitch and nothing to morph.

The file layout is the format's, with two deliberate departures, both written down in
quantizedmeshformat.h: the geodetic header fields carry scenery metres, there being no
geographic reference to convert from, and the material a vertex belongs to rides in an
extension of ours. Texture coordinates are not stored at all - ground tiles in world space, so
the coordinate follows from the position and from how many metres one repeat of the material
covers, measured off the scenery once and kept in the terrain's table.

Tiles live in one archive beside the scenery, an entry each, compressed on its own. Baltyk
cooks to 546 kB against 2.2 MB of heightfields, quark to 361 kB against 9.6 MB, tomaszewo to
375 kB against 9.9 MB.

Drawing is one call a frame: every resident tile lives in the same vertex and index buffer,
with its vertices measured from the middle of the terrain so that the whole map fits in floats,
and a frame is one glMultiDrawElementsBaseVertex over the tiles the walk chose and the frustum
kept. On baltyk that settles at 291 tiles resident, 16 MB of mesh, 85 tiles and 6k triangles
drawn.

What counts as ground is what the scenery says, not what its triangles look like. A node under
origin, rotate or scale is an object standing on the ground; a material with an alpha channel is
a tree, a bush, a fence or a catenary mast. Everything else is laid whichever way it faces, so
the side of an embankment or a cutting goes in with the rest instead of leaving a hole along
every bank. Whatever is left out is recorded per node, and the scenery goes on drawing it.

A cook is a cache: it is used again only when the archive, the note of which nodes went into it
and the manifest of what the scenery was made from all agree. A manifest listing a file the
scenery names but does not have used to fail that test for ever, since an absent file never
matches - quark has such an include, and nothing beside it could ever be reused.

tools/terraincook cooks the same way outside the engine, and meshtest beside it checks what the
cook promises: a tile reads back as written, neighbouring tiles agree on their border to the
millimetre, a hole is not filled in, a wall is laid exactly once, and a material's tiling comes
out of the source. seamcheck.py goes: it tested the morphing constants of a heightfield nothing
reads any more.
2026-09-20 08:04:46 +02:00

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CMake
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cmake_minimum_required(VERSION 3.28) # 3.28+: FILE_SET CXX_MODULES
if(POLICY CMP0058)
cmake_policy(SET CMP0058 NEW)
endif()
if(POLICY CMP0074)
cmake_policy(SET CMP0074 NEW)
endif()
if(POLICY CMP0069)
cmake_policy(SET CMP0069 NEW)
endif()
include(CheckCXXSymbolExists)
set(CMAKE_FIND_PACKAGE_PREFER_CONFIG TRUE)
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/CMake_modules/")
set(DEPS_DIR ${DEPS_DIR} "${CMAKE_CURRENT_SOURCE_DIR}/ref")
project("eu07")
# Clang is the compiler this project is built and tested with: clang on Linux,
# clang-cl on Windows, both pinned to 22 in CI. MSVC still configures and is not
# rejected, but nothing verifies it. GCC is not supported: its lazy loading of
# module interfaces is broken here, and working around it costs roughly twice
# the memory per compiler process.
if (NOT CMAKE_CXX_COMPILER_ID MATCHES "Clang|MSVC")
message(FATAL_ERROR
"Unsupported compiler: ${CMAKE_CXX_COMPILER_ID}. "
"Build with Clang (CI uses 22) or MSVC.")
endif()
# Only Platform/Windows-MSVC.cmake passes /DWIN32; the GNU-driver platform files
# do not. Plenty of third-party code tests the unprefixed WIN32 rather than
# _WIN32 - asio and AMD's FSR2 among it, the latter swapping in POSIX shims for
# wcscpy_s and _countof that then collide with the real CRT. Define it here,
# before any add_subdirectory, so every target sees what an MSVC build saw.
if (WIN32 AND NOT MSVC)
add_compile_definitions(WIN32)
endif()
#set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address -fsanitize=undefined")
#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fsanitize=undefined -Wformat")
#set(CMAKE_LD_FLAGS "${CMAKE_LD_FLAGS} -fsanitize=address -fsanitize=undefined")
string(TIMESTAMP VERSION_YEAR "%y")
string(TIMESTAMP VERSION_MONTH "%m")
string(TIMESTAMP VERSION_DAY "%d")
# Use these as version numbers
set(VERSION_MAJOR ${VERSION_YEAR})
set(VERSION_MINOR ${VERSION_MONTH})
set(VERSION_PATCH ${VERSION_DAY})
set(VERSION_STRING "${VERSION_YEAR}.${VERSION_MONTH}.${VERSION_DAY}")
set(CMAKE_CXX_STANDARD 20)
file(GLOB HEADERS "*.h"
"Console/*.h"
"McZapkie/*.h"
"gl/*.h"
"network/*.h"
"vr/*.h"
"network/backend/*.h"
"widgets/*.h"
"launcher/*.h"
"extras/*.h"
"global_include/*.h"
"simulation/*.h"
"scene/*.h"
"rendering/*.h"
"audio/*.h"
"environment/*.h"
"application/*.h"
"input/*.h"
"scripting/*.h"
"model/*.h"
"utilities/*.h"
"world/*.h"
"vehicle/*.h")
set(GLOBAL_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
set(GLOBAL_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/global_include")
set(IMGUI_DIR "${CMAKE_CURRENT_SOURCE_DIR}/imgui")
if (APPLE)
set (CMAKE_FIND_FRAMEWORK LAST)
endif()
option(WITH_OPENGL_MODERN "Compile with OpenGL modern renderer" ON)
option(WITH_OPENGL_LEGACY "Compile with OpenGL legacy renderer" ON)
option(WITH_PYTHON "Python 3.14 embedded scripting" ON)
option(WITH_UART "Compile with libserialport" ON)
option(WITH_LUA "Compile with lua scripting support" ON)
option(WITH_OPENVR "Compile with OpenVR" OFF)
option(WITH_ZMQ "Compile with cppzmq" OFF)
option(WITH_CRASHPAD "Compile with crashpad" OFF)
option(WITH_DISCORD_RPC "Compile with DISCORD RICH PRESENCE" ON)
option(USE_LTO "Use link-time optimization" OFF)
option(WITH_BETTER_RENDERER "Experimental multi-backend renderer based on NVRHI" ON)
option(GENERATE_PDB "Generate executable with program debugging symbols" ON)
option(ENABLE_MCC "Enable multicore compilation" ON)
option(WITHDUMPGEN "Enable generating DMP files on crash" ON)
option(ENABLE_AVX2 "Enable AVX2 instruction set (requires AVX2-capable CPU, Haswell/2013 or newer)" ON)
option(ADD_VERSION_SUFFIX "Add date and commit hash to the executable name" ON)
set(BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
# vcpkg init. The triplet has to follow the host, or a non-Windows build looks
# for its packages (DXC, used by the betterRenderer shader compiler) in a
# directory that only ever exists on Windows.
set(VCPKG_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/ref/vcpkg")
if (WIN32)
set(VCPKG_TRIPLET "x64-windows")
elseif (APPLE)
set(VCPKG_TRIPLET "x64-osx")
else()
set(VCPKG_TRIPLET "x64-linux")
endif()
set(VCPKG_INSTALLED_PATH "${VCPKG_ROOT}/installed/${VCPKG_TRIPLET}")
list(APPEND CMAKE_PREFIX_PATH "${VCPKG_INSTALLED_PATH}")
list(APPEND CMAKE_MODULE_PATH "${VCPKG_INSTALLED_PATH}/share")
set(SOURCES
"model/Texture.cpp"
"utilities/Timer.cpp"
"world/Track.cpp"
"world/Traction.cpp"
"world/TractionPower.cpp"
"vehicle/Train.cpp"
"world/TrkFoll.cpp"
"vehicle/AirCoupler.cpp"
"model/AnimModel.cpp"
"vehicle/Button.cpp"
"vehicle/Camera.cpp"
"vehicle/Driver.cpp"
"application/driverhints.cpp"
"vehicle/DynObj.cpp"
"EU07.cpp"
"export_e3d_standalone.cpp"
"world/Event.cpp"
"world/EvLaunch.cpp"
"utilities/Float3d.cpp"
"vehicle/Gauge.cpp"
"utilities/Globals.cpp"
"utilities/Logs.cpp"
"McZapkie/friction.cpp"
"McZapkie/hamulce.cpp"
"McZapkie/Mover.cpp"
"McZapkie/Oerlikon_ESt.cpp"
"model/MdlMngr.cpp"
"world/MemCell.cpp"
"model/Model3d.cpp"
"world/mtable.cpp"
"utilities/parser.cpp"
"rendering/nullrenderer.cpp"
"rendering/renderer.cpp"
"model/ResourceManager.cpp"
"scene/sn_utils.cpp"
"world/Segment.cpp"
"environment/sky.cpp"
"environment/sun.cpp"
"environment/stars.cpp"
"rendering/lightarray.cpp"
"environment/skydome.cpp"
"audio/sound.cpp"
"world/Spring.cpp"
"rendering/frustum.cpp"
"application/uilayer.cpp"
"rendering/openglmatrixstack.cpp"
"environment/moon.cpp"
"input/command.cpp"
"input/keyboardinput.cpp"
"input/gamepadinput.cpp"
"input/drivermouseinput.cpp"
"utilities/translation.cpp"
"model/material.cpp"
"input/messaging.cpp"
"scene/scene.cpp"
"scene/logiccontainer.cpp"
"scene/prefab.cpp"
"scene/scenenode.cpp"
"simulation/simulation.cpp"
"model/vertex.cpp"
"audio/audio.cpp"
"audio/audiorenderer.cpp"
"utilities/motiontelemetry.cpp"
"utilities/utilities.cpp"
"application/uitranscripts.cpp"
"world/station.cpp"
"application/application.cpp"
"application/shotrunner.cpp"
"rendering/terrainclipmap.cpp"
"rendering/terraintileloader.cpp"
"rendering/terraintilepool.cpp"
"rendering/terrainmesharena.cpp"
"rendering/terrainground.cpp"
"simulation/loadprofile.cpp"
"simulation/cookdeps.cpp"
"simulation/logiccook.cpp"
"simulation/terrainbake.cpp"
"scene/quantizedmeshcooker.cpp"
"simulation/simulationtime.cpp"
"scene/sceneeditor.cpp"
"rendering/screenshot.cpp"
"input/driverkeyboardinput.cpp"
"application/drivermode.cpp"
"application/driveruilayer.cpp"
"application/driveruipanels.cpp"
"input/editorkeyboardinput.cpp"
"editor/editorSettings.cpp"
"editor/puwg1992.cpp"
"editor/polandmap.cpp"
"editor/turnouts.cpp"
"editor/orthophoto.cpp"
"editor/plan_chain.cpp"
"editor/plan_document_io.cpp"
"editor/plan_join.cpp"
"editor/plan_layout.cpp"
"editor/plan_model.cpp"
"editor/plan_rail_renderer.cpp"
"editor/plan_render.cpp"
"editor/plan_scn_export.cpp"
"editor/plan_sketch.cpp"
"editor/plan_solution.cpp"
"editor/plan_tilecache.cpp"
"editor/plan_turnout_geometry.cpp"
"editor/editorTerrain.cpp"
"editor/editorTerrainStreamer.cpp"
"application/editormode.cpp"
"input/editormouseinput.cpp"
"application/editoruilayer.cpp"
"application/editoruipanels.cpp"
"application/planpanel.cpp"
"application/scenarioloadermode.cpp"
"application/scenarioloaderuilayer.cpp"
"scene/scenenodegroups.cpp"
"simulation/simulationenvironment.cpp"
"simulation/simulationstateserializer.cpp"
"rendering/precipitation.cpp"
"scripting/pythonscreenviewer.cpp"
"utilities/dictionary.cpp"
"rendering/particles.cpp"
"utilities/headtrack.cpp"
"scripting/ladderlogic.cpp"
"rendering/geometrybank.cpp"
"rendering/openglcolor.cpp"
"simulation/simulationsounds.cpp"
"rendering/openglcamera.cpp"
"network/network.cpp"
"network/message.cpp"
"network/manager.cpp"
"widgets/vehiclelist.cpp"
"widgets/map.cpp"
"widgets/map_objects.cpp"
"widgets/popup.cpp"
"widgets/time.cpp"
"widgets/vehicleparams.cpp"
"widgets/trainingcard.cpp"
"widgets/perfgraphs.cpp"
"${DEPS_DIR}/glad/src/glad.c"
"${DEPS_DIR}/dds-ktx/src/dds-ktx.c"
"gl/shader.cpp"
"gl/vao.cpp"
"gl/ubo.cpp"
"gl/framebuffer.cpp"
"gl/renderbuffer.cpp"
"gl/postfx.cpp"
"gl/cubemap.cpp"
"gl/glsl_common.cpp"
"gl/buffer.cpp"
"gl/fence.cpp"
"gl/pbo.cpp"
"gl/query.cpp"
"imgui/imgui.cpp"
"imgui/imgui_demo.cpp"
"imgui/imgui_draw.cpp"
"imgui/imgui_widgets.cpp"
"imgui/imgui_impl_glfw.cpp"
"imgui/ImGuizmo.cpp"
"stb/stb_image.c"
"launcher/launchermode.cpp"
"launcher/scenery_list.cpp"
"launcher/launcheruilayer.cpp"
"launcher/vehicle_picker.cpp"
"launcher/keymapper.cpp"
"launcher/textures_scanner.cpp"
"launcher/scenery_scanner.cpp"
"vr/vr_interface.cpp"
)
set(DEFINITIONS)
# Definitions that used to live at the top of stdafx.h. They must be identical in
# every translation unit (glm is header-only and its GLM_FORCE_* switches change
# type layout), so they are set on the target rather than in a header that a file
# could forget to include first.
set(DEFINITIONS ${DEFINITIONS}
"_USE_MATH_DEFINES"
"NOMINMAX"
"GLFW_INCLUDE_NONE"
"GLM_FORCE_SWIZZLE"
"GLM_ENABLE_EXPERIMENTAL"
"GLM_FORCE_CTOR_INIT"
# empty value, not 1: glm/simd/platform.h defines this itself as a bare
# #define, and a differing definition would warn on every translation unit
"GLM_FORCE_INTRINSICS=")
if (WIN32)
# _WIN32_WINNT came from targetver.h, which only ever existed to be pulled in
# by stdafx.h; keep the same Windows 7 API level now that both are gone
set(DEFINITIONS ${DEFINITIONS} "WIN32_LEAN_AND_MEAN" "_WIN32_WINNT=0x0601")
endif()
if (APPLE)
# parts of the codebase gate posix-only code on __unix__, which Apple does not define
set(DEFINITIONS ${DEFINITIONS} "__unix__=1")
endif()
if (MSVC)
set(DEFINITIONS ${DEFINITIONS} "GLM_FORCE_INLINE" "_CRTDBG_MAP_ALLOC")
endif()
if (CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64|arm64|ARM64)$")
set(DEFINITIONS ${DEFINITIONS} "GLM_FORCE_NEON")
elseif (ENABLE_AVX2)
set(DEFINITIONS ${DEFINITIONS} "GLM_FORCE_AVX2")
endif()
set(SOURCES ${SOURCES} "imgui/imgui_impl_opengl3.cpp")
set(SOURCES ${SOURCES} "imgui/imgui_impl_opengl2.cpp")
if (WITH_CRASHPAD)
set(DEFINITIONS ${DEFINITIONS} "WITH_CRASHPAD")
set(SOURCES ${SOURCES} "utilities/crashreporter.cpp")
if (WIN32)
include_directories("${DEPS_DIR}/crashpad/include" "${DEPS_DIR}/crashpad/include/mini_chromium")
else()
include_directories("${DEPS_DIR}/crashpad/crashpad" "${DEPS_DIR}/crashpad/crashpad/third_party/mini_chromium/mini_chromium")
endif()
endif()
if(WITH_PYTHON)
set(DEFINITIONS ${DEFINITIONS} "WITH_PYTHON")
set(SOURCES ${SOURCES} "scripting/PyInt.cpp")
else()
set(SOURCES ${SOURCES} "scripting/PyIntStub.cpp")
endif()
if (WITH_UART)
set(DEFINITIONS ${DEFINITIONS} "WITH_UART")
set(SOURCES ${SOURCES} "utilities/uart.cpp")
endif()
if (WITH_ZMQ)
set(DEFINITIONS ${DEFINITIONS} "WITH_ZMQ")
set(SOURCES ${SOURCES} "input/zmq_input.cpp")
endif()
if (WITH_OPENVR)
set(DEFINITIONS ${DEFINITIONS} "WITH_OPENVR")
set(SOURCES ${SOURCES} "vr/openvr_imp.cpp")
endif()
if (WITH_LUA)
set(DEFINITIONS ${DEFINITIONS} "WITH_LUA")
set(SOURCES ${SOURCES} "scripting/lua.cpp")
endif()
if (WITHDUMPGEN)
set(DEFINITIONS ${DEFINITIONS} "WITHDUMPGEN")
endif()
if (WITH_OPENGL_MODERN)
set(SOURCES ${SOURCES}
"rendering/opengl33geometrybank.cpp"
"rendering/opengl33light.cpp"
"rendering/opengl33skydome.cpp"
"rendering/opengl33precipitation.cpp"
"rendering/opengl33particles.cpp"
"rendering/opengl33renderer.cpp")
set(DEFINITIONS ${DEFINITIONS} "WITH_OPENGL_MODERN")
endif()
if (WITH_OPENGL_LEGACY)
set(SOURCES ${SOURCES}
"rendering/openglgeometrybank.cpp"
"rendering/opengllight.cpp"
"rendering/openglskydome.cpp"
"rendering/openglprecipitation.cpp"
"rendering/openglparticles.cpp"
"rendering/openglrenderer.cpp")
set(DEFINITIONS ${DEFINITIONS} "WITH_OPENGL_LEGACY")
endif()
add_subdirectory("${DEPS_DIR}/glfw/" EXCLUDE_FROM_ALL)
set(SOURCES ${SOURCES} "extras/piped_proc.cpp" "widgets/cameraview_extcam.cpp")
find_package(Git)
if (GIT_FOUND AND EXISTS "${CMAKE_SOURCE_DIR}/.git")
execute_process(
COMMAND ${GIT_EXECUTABLE} describe --match=DUMMY --always --dirty
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
OUTPUT_VARIABLE GIT_HASH
OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process(
COMMAND ${GIT_EXECUTABLE} show -s --format=%ci
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
OUTPUT_VARIABLE SRC_DATE
OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process(
COMMAND ${GIT_EXECUTABLE} show -s --format=%cs
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
OUTPUT_VARIABLE SRC_SHORT_DATE
OUTPUT_STRIP_TRAILING_WHITESPACE
)
else()
string(TIMESTAMP SRC_SHORT_DATE %Y-%m-%d UTC)
string(TIMESTAMP SRC_DATE UTC)
set(GIT_HASH "(unknown)")
endif()
configure_file("${CMAKE_SOURCE_DIR}/version_info.h.in" "${CMAKE_BINARY_DIR}/geninc/version_info.h")
set (PREFIX "")
set (SUFFIX "")
if (ADD_VERSION_SUFFIX)
set (SUFFIX "_${SRC_SHORT_DATE}_${GIT_HASH}")
endif()
set(OPENVR_LIBRARY "openvr_api")
set(OPENVR_INCLUDE_DIR "")
if (WIN32)
set(DEFINITIONS ${DEFINITIONS} "HAVE_ROUND") # to make pymath to not redefine round
# set(DEFINITIONS ${DEFINITIONS} "GLFW_DLL")
set(SOURCES ${SOURCES} "windows.cpp" "Console.cpp" "Console/LPT.cpp" "Console/PoKeys55.cpp")
#set(GLFW3_INCLUDE_DIR ${GLFW3_INCLUDE_DIR} "${DEPS_DIR}/glfw/include/")
set(PNG_INCLUDE_DIRS ${PNG_INCLUDE_DIRS} "${DEPS_DIR}/libpng/include/")
#set(ZLIB_INCLUDE_DIR ${ZLIB_INCLUDE_DIR} "${DEPS_DIR}/zlib/")
set(OPENAL_INCLUDE_DIR ${OPENAL_INCLUDE_DIR} "${DEPS_DIR}/openal/include")
set(LIBSNDFILE_INCLUDE_DIR ${LIBSNDFILE_INCLUDE_DIR} "${DEPS_DIR}/libsndfile/include")
set(LUAJIT_INCLUDE_DIR ${LUAJIT_INCLUDE_DIR} "${DEPS_DIR}/luajit/include")
set(libserialport_INCLUDE_DIR ${LIBSERIALPORT_INCLUDE_DIR} "${DEPS_DIR}/libserialport/include")
set(OPENVR_INCLUDE_DIR "${DEPS_DIR}/openvr/include")
#if(${CMAKE_EXE_LINKER_FLAGS} STREQUAL "/machine:x64")
# set (ARCH "x64")
#else()
# set (ARCH "x86")
#endif()
set(ARCH "x64")
set (PREFIX "-${ARCH}")
#set(GLFW3_LIBRARIES ${GLFW3_LIBRARIES} "${DEPS_DIR}/glfw/lib/${ARCH}/glfw3dll.lib")
set(PNG_LIBRARIES ${PNG_LIBRARIES} "${DEPS_DIR}/libpng/lib/${ARCH}/libpng16.lib")
set(OPENAL_LIBRARY ${OPENAL_LIBRARY} "${DEPS_DIR}/openal/lib/${ARCH}/OpenAL32.lib")
set(LIBSNDFILE_LIBRARY ${LIBSNDFILE_LIBRARY} "${DEPS_DIR}/libsndfile/lib/${ARCH}/libsndfile-1.lib")
set(LUAJIT_LIBRARIES ${LUAJIT_LIBRARIES} "${DEPS_DIR}/luajit/lib/${ARCH}/lua51.lib")
set(libserialport_LIBRARY ${LIBSERIALPORT_LIBRARY} "${DEPS_DIR}/libserialport/lib/${ARCH}/libserialport-0.lib")
set(cppzmq_LIBRARY ${cppzmq_LIBRARY} "${DEPS_DIR}/cppzmq/lib/${ARCH}/libzmq.lib")
set(OPENVR_LIBRARY "${DEPS_DIR}/openvr/lib/${ARCH}/openvr_api.lib")
endif()
set(cppzmq_INCLUDE_DIR ${cppzmq_INCLUDE_DIR} "${DEPS_DIR}/cppzmq/include")
set(GLM_INCLUDE_DIR ${GLM_INCLUDE_DIR} "${DEPS_DIR}/glm/")
# Process version.rc.in into version.rc
configure_file(${CMAKE_SOURCE_DIR}/eu07.rc.in
${CMAKE_BINARY_DIR}/eu07.rc @ONLY)
# Gated on WIN32, not MSVC: CMake only sets MSVC for the MSVC-style driver, and
# the Windows build uses clang's GNU driver, which needs the version resource
# and the icon just the same.
if (WIN32)
# the Visual Studio generators enable RC on their own; Ninja does not
enable_language(RC)
set(SOURCES ${SOURCES} ${CMAKE_BINARY_DIR}/eu07.rc)
set(SOURCES ${SOURCES} eu07.ico)
if (MSVC)
add_compile_options("/utf-8") # clang's GNU driver already reads UTF-8
endif()
endif()
add_executable(${PROJECT_NAME} ${SOURCES} ${HEADERS})
# C++20 module interface units. They must be declared through a CXX_MODULES file
# set so CMake runs the dependency scanner and orders the build; the matching
# .cpp implementation units stay ordinary sources in ${SOURCES}.
file(GLOB MODULE_INTERFACES CONFIGURE_DEPENDS "*.cppm"
"Console/*.cppm"
"McZapkie/*.cppm"
"gl/*.cppm"
"network/*.cppm"
"vr/*.cppm"
"network/backend/*.cppm"
"widgets/*.cppm"
"launcher/*.cppm"
"extras/*.cppm"
"global_include/*.cppm"
"global_include/interfaces/*.cppm"
"simulation/*.cppm"
"scene/*.cppm"
"rendering/*.cppm"
"audio/*.cppm"
"environment/*.cppm"
"application/*.cppm"
"input/*.cppm"
"scripting/*.cppm"
"model/*.cppm"
"utilities/*.cppm"
"world/*.cppm"
"editor/*.cppm"
"vehicle/*.cppm"
"simcore/*.cppm")
# Unlike ordinary sources, every interface unit in the file set is scanned even
# when the feature that owns it is switched off, so the optional ones have to be
# dropped explicitly or the scan fails on their missing SDK headers.
list(REMOVE_ITEM MODULE_INTERFACES "${CMAKE_CURRENT_SOURCE_DIR}/world/Curve.cppm")
if (NOT WITH_ZMQ)
list(REMOVE_ITEM MODULE_INTERFACES "${CMAKE_CURRENT_SOURCE_DIR}/input/zmq_input.cppm")
endif()
if (NOT WITH_OPENVR)
list(REMOVE_ITEM MODULE_INTERFACES "${CMAKE_CURRENT_SOURCE_DIR}/vr/openvr_imp.cppm")
endif()
set_target_properties(${PROJECT_NAME} PROPERTIES CXX_STANDARD_REQUIRED ON CXX_EXTENSIONS OFF)
target_compile_definitions(${PROJECT_NAME} PRIVATE ${DEFINITIONS})
target_include_directories(${PROJECT_NAME} PRIVATE
"."
"Console"
"McZapkie"
"gl"
"${DEPS_DIR}/glad/include"
"${DEPS_DIR}/dds-ktx/include"
"${CMAKE_BINARY_DIR}/geninc"
"${GLOBAL_INCLUDE_DIR}")
if (MSVC)
# override cmake defaults
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO " /MD /Zi /O2 /DNDEBUG")
set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO " /DEBUG /INCREMENTAL:NO /OPT:REF /OPT:ICF")
# /wd4996: disable "deprecation" warnings
# /wd4244: disable warnings for conversion with possible loss of data
# /wd5033: disable because it is all over Python headers
set_target_properties(${PROJECT_NAME} PROPERTIES COMPILE_FLAGS "/wd4996 /wd4244 /wd5033")
set_target_properties(${PROJECT_NAME} PROPERTIES LINK_FLAGS "/LARGEADDRESSAWARE")
# /MAP is a link.exe option; lld-link, which clang-cl usually drives, spells
# it differently. The map only feeds the debug-symbols artifact, whose upload
# tolerates it being absent.
if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
target_link_options(${PROJECT_NAME} PRIVATE "/MAP")
endif()
endif()
set_target_properties( ${PROJECT_NAME}
PROPERTIES
ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib"
LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib"
RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin"
PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/pdb"
OUTPUT_NAME "${PROJECT_NAME}${PREFIX}${SUFFIX}"
DEBUG_POSTFIX "_d"
)
check_cxx_symbol_exists(__GNUC__ "" COMPILER_HAVE_GNUC)
if (COMPILER_HAVE_GNUC)
set_target_properties(${PROJECT_NAME} PROPERTIES COMPILE_FLAGS "-fvisibility=hidden")
endif()
if (USE_LTO)
set_property(TARGET ${PROJECT_NAME} PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
endif()
if (WITH_OPENVR)
target_include_directories(${PROJECT_NAME} PRIVATE ${OPENVR_INCLUDE_DIR})
target_link_libraries(${PROJECT_NAME} ${OPENVR_LIBRARY})
endif()
if (WITH_CRASHPAD)
if (WIN32)
target_link_libraries(${PROJECT_NAME} "${DEPS_DIR}/crashpad/lib_md/base.lib")
target_link_libraries(${PROJECT_NAME} "${DEPS_DIR}/crashpad/lib_md/client.lib")
target_link_libraries(${PROJECT_NAME} "${DEPS_DIR}/crashpad/lib_md/util.lib")
else()
target_link_libraries(${PROJECT_NAME} "${DEPS_DIR}/crashpad/crashpad/out/Default/obj/client/libclient.a")
target_link_libraries(${PROJECT_NAME} "${DEPS_DIR}/crashpad/crashpad/out/Default/obj/util/libutil.a")
target_link_libraries(${PROJECT_NAME} "${DEPS_DIR}/crashpad/crashpad/out/Default/obj/third_party/mini_chromium/mini_chromium/base/libbase.a")
endif()
endif()
target_link_libraries(${PROJECT_NAME} glfw)
# the cooked terrain heightfield stores its tiles compressed
target_link_libraries(${PROJECT_NAME} zstd::libzstd)
if(WITH_PYTHON)
find_package(Python3 3.14 REQUIRED COMPONENTS Development)
target_include_directories(${PROJECT_NAME} PRIVATE ${Python3_INCLUDE_DIRS})
target_link_libraries(${PROJECT_NAME} ${Python3_LIBRARIES})
if(WIN32)
# Python3_ROOT_DIR is only an input hint and is not populated by
# find_package(... COMPONENTS Development). Derive the install root from
# the include dir (parent of <root>/include) when it was not provided.
if(NOT Python3_ROOT_DIR)
get_filename_component(Python3_ROOT_DIR "${Python3_INCLUDE_DIRS}" DIRECTORY)
endif()
set(EU07_PY_DLL "${Python3_ROOT_DIR}/python314.dll")
set(EU07_PY_ZLIB "${Python3_ROOT_DIR}/DLLs/zlib1.dll")
set(EU07_PY_LIBDIR "${Python3_ROOT_DIR}/Lib")
set(EU07_PY_DLLSDIR "${Python3_ROOT_DIR}/DLLs")
endif()
endif()
if (NOT WIN32)
find_package(PNG 1.6 REQUIRED)
target_link_libraries(${PROJECT_NAME} PNG::PNG)
else()
include_directories(${PNG_INCLUDE_DIRS})
target_link_libraries(${PROJECT_NAME} ${PNG_LIBRARIES})
endif()
find_package(zstd CONFIG QUIET)
if(NOT zstd_FOUND)
find_package(PkgConfig REQUIRED)
pkg_check_modules(ZSTD REQUIRED IMPORTED_TARGET libzstd)
add_library(zstd::libzstd ALIAS PkgConfig::ZSTD)
endif()
find_package(Threads REQUIRED)
target_link_libraries(${PROJECT_NAME} Threads::Threads)
# the editor's map imagery talks to a WMS over https. windows has WinHttp in the platform sdk;
# everywhere else libcurl is the transport (see editor/orthophoto.cpp). it is not required: a tree
# without it builds an editor that draws and exports as usual, only with no imagery behind the plan
if (NOT WIN32)
find_package(CURL)
if (CURL_FOUND)
target_link_libraries(${PROJECT_NAME} CURL::libcurl)
target_compile_definitions(${PROJECT_NAME} PRIVATE WITH_CURL)
else()
message(WARNING
"libcurl not found: the editor will have no map imagery. "
"Install libcurl4-openssl-dev (Debian/Ubuntu) or libcurl-devel (Fedora) to get it back.")
endif()
endif()
find_package(GLM REQUIRED)
target_include_directories(${PROJECT_NAME} PRIVATE ${GLM_INCLUDE_DIR})
# JSON lib
add_subdirectory(ref/json)
target_link_libraries(${PROJECT_NAME} nlohmann_json::nlohmann_json)
target_include_directories(${PROJECT_NAME} PRIVATE ${NLOHMANN_JSON_INCLUDE_INSTALL_DIR})
# track layout domain model used by the editor; plain C++20, no dependencies of its own
if (WITH_DISCORD_RPC)
add_subdirectory(ref/discord-rpc)
set_target_properties(discord-rpc PROPERTIES FOLDER "libraries")
target_link_libraries(${PROJECT_NAME} discord-rpc)
# Add the include directory so the compiler can find discord_rpc.h
target_include_directories(${PROJECT_NAME} PUBLIC
"${CMAKE_CURRENT_SOURCE_DIR}/ref/discord-rpc/include"
)
target_compile_definitions(${PROJECT_NAME} PUBLIC WITH_DISCORD_RPC=1)
else()
target_compile_definitions(${PROJECT_NAME} PUBLIC WITH_DISCORD_RPC=0)
endif()
find_package(OpenAL REQUIRED)
if (TARGET OpenAL::OpenAL)
target_link_libraries(${PROJECT_NAME} OpenAL::OpenAL)
else()
target_include_directories(${PROJECT_NAME} PRIVATE ${OPENAL_INCLUDE_DIR})
target_link_libraries(${PROJECT_NAME} ${OPENAL_LIBRARY})
endif()
find_package(SndFile REQUIRED)
target_link_libraries(${PROJECT_NAME} SndFile::sndfile)
if (WITH_LUA)
find_package(LuaJIT REQUIRED)
target_include_directories(${PROJECT_NAME} PRIVATE ${LUAJIT_INCLUDE_DIR})
target_link_libraries(${PROJECT_NAME} ${LUAJIT_LIBRARIES})
endif()
if (WITH_UART)
find_package(libserialport REQUIRED)
target_include_directories(${PROJECT_NAME} PRIVATE ${libserialport_INCLUDE_DIR})
target_link_libraries(${PROJECT_NAME} ${libserialport_LIBRARY})
endif()
find_package(ASIO REQUIRED)
target_link_libraries(${PROJECT_NAME} asio::asio)
if (WIN32)
target_link_libraries(${PROJECT_NAME} ws2_32)
endif()
if (WITH_ZMQ)
find_package(cppzmq REQUIRED)
target_include_directories(${PROJECT_NAME} PRIVATE ${cppzmq_INCLUDE_DIR})
target_link_libraries(${PROJECT_NAME} ${cppzmq_LIBRARY})
endif()
if (WIN32)
add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy -t $<TARGET_FILE_DIR:${PROJECT_NAME}> $<TARGET_RUNTIME_DLLS:${PROJECT_NAME}>
COMMAND_EXPAND_LISTS
)
endif ()
if(WIN32 AND WITH_PYTHON)
add_custom_command(
TARGET ${PROJECT_NAME} POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different "${EU07_PY_DLL}" "$<TARGET_FILE_DIR:${PROJECT_NAME}>"
COMMAND ${CMAKE_COMMAND} -E copy_if_different "${EU07_PY_ZLIB}" "$<TARGET_FILE_DIR:${PROJECT_NAME}>"
COMMAND ${CMAKE_COMMAND} -E copy_directory "${EU07_PY_LIBDIR}" "$<TARGET_FILE_DIR:${PROJECT_NAME}>/python64/Lib"
COMMAND ${CMAKE_COMMAND} -E copy_directory "${EU07_PY_DLLSDIR}" "$<TARGET_FILE_DIR:${PROJECT_NAME}>/python64/DLLs"
)
endif()
# The module interface units live in their own library so that other targets --
# betterRenderer, which is a separate add_library -- can import them. A target
# can only consume C++20 modules by linking the target that owns the file set,
# and the executable's own modules are not reachable that way.
#
# The interfaces need exactly the flags the executable was given, so they are
# copied off it rather than restated; this has to happen after all the
# third-party wiring above and before betterRenderer is added, or the mirrored
# link list would point back at betterRenderer and make the dependency circular.
add_subdirectory(editor/tests)
add_library(eu07_modules STATIC)
get_target_property(EU07_INCLUDES ${PROJECT_NAME} INCLUDE_DIRECTORIES)
get_target_property(EU07_DEFINITIONS ${PROJECT_NAME} COMPILE_DEFINITIONS)
get_target_property(EU07_LINKS ${PROJECT_NAME} LINK_LIBRARIES)
target_sources(eu07_modules
PUBLIC FILE_SET CXX_MODULES
BASE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}
FILES ${MODULE_INTERFACES})
target_include_directories(eu07_modules PUBLIC ${EU07_INCLUDES})
target_compile_definitions(eu07_modules PUBLIC ${EU07_DEFINITIONS})
target_link_libraries(eu07_modules PUBLIC ${EU07_LINKS})
set_target_properties(eu07_modules PROPERTIES
CXX_STANDARD 20 CXX_STANDARD_REQUIRED ON CXX_EXTENSIONS OFF
POSITION_INDEPENDENT_CODE ON)
target_link_libraries(${PROJECT_NAME} eu07_modules)
if (WITH_BETTER_RENDERER)
add_subdirectory("betterRenderer")
set_target_properties(betterRenderer betterRenderer_fsr2 betterRenderer_shaders PROPERTIES FOLDER "renderers")
target_link_libraries(${PROJECT_NAME} "betterRenderer")
endif ()
# Enable compiling with debug symbols
if(GENERATE_PDB)
if (MSVC)
# Ensure Debug and Release configurations use appropriate runtime libraries
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /Zi /MDd")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Zi /MD")
# Add compile options for debugging
add_compile_options(/Zi) # Always enable debug symbols
add_link_options(/DEBUG /MAP)
# Ensure that the PCH is built with the correct runtime library for each configuration
set_target_properties(${PROJECT_NAME} PROPERTIES
COMPILE_OPTIONS "$<$<CONFIG:Debug>:/MDd>$<$<CONFIG:Release>:/MD>")
else()
# GCC/Clang (ensure -g is set for all configurations)
add_compile_options(-g)
endif()
endif()
# /MP is an MSVC-only option; clang-cl rejects it, and under Ninja the generator
# already runs one compiler process per core.
if(ENABLE_MCC AND CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" AND NOT CMAKE_GENERATOR MATCHES "Ninja")
message(STATUS "Enabling multi-processor compilation for MSVC.")
add_compile_options(/MP)
endif()
if(ENABLE_AVX2)
message(STATUS "Enabling AVX2 instruction set.")
if (MSVC)
target_compile_options(${PROJECT_NAME} PRIVATE /arch:AVX2)
else()
target_compile_options(${PROJECT_NAME} PRIVATE -mavx2)
endif()
endif()
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