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Merge pull request #1632 from dsnopek/4.3-cherrypicks-2 

Cherry-picks for the godot-cpp 4.3 branch - 2nd batch
4.3
David Snopek 2024-10-30 09:38:31 -05:00 committed by GitHub
parent 1cce4d15ab 94d74979ce
commit 56571dc584
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
16 changed files with 396 additions and 264 deletions
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4
.github/workflows/ci.yml vendored
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@ -264,9 +264,9 @@ jobs:
- name: Build godot-cpp
run: |
cmake -DCMAKE_BUILD_TYPE=Release -G"Visual Studio 16 2019" .
cmake --build . --verbose
cmake --build . --verbose --config Release
- name: Build test GDExtension library
run: |
cd test && cmake -DCMAKE_BUILD_TYPE=Release -DGODOT_HEADERS_PATH="../godot-headers" -DCPP_BINDINGS_PATH=".." -G"Visual Studio 16 2019" .
cmake --build . --verbose
cmake --build . --verbose --config Release

4
.gitignore vendored
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@ -195,3 +195,7 @@ compile_commands.json
# Python development
.venv
venv
# Clion Configuration
.idea/
cmake-build-*

228
CMakeLists.txt
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@ -1,228 +1,24 @@
# cmake arguments
# CMAKE_BUILD_TYPE: Compilation target (Debug or Release defaults to Debug)
#
# godot-cpp cmake arguments
# GODOT_GDEXTENSION_DIR: Path to the directory containing GDExtension interface header and API JSON file
# GODOT_CPP_SYSTEM_HEADERS Mark the header files as SYSTEM. This may be useful to suppress warnings in projects including this one.
# GODOT_CPP_WARNING_AS_ERROR Treat any warnings as errors
# GODOT_ENABLE_HOT_RELOAD Build with hot reload support. Defaults to YES for Debug-builds and NO for Release-builds.
# GODOT_CUSTOM_API_FILE: Path to a custom GDExtension API JSON file (takes precedence over `gdextension_dir`)
# FLOAT_PRECISION: Floating-point precision level ("single", "double")
#
# Android cmake arguments
# CMAKE_TOOLCHAIN_FILE: The path to the android cmake toolchain ($ANDROID_NDK/build/cmake/android.toolchain.cmake)
# ANDROID_NDK: The path to the android ndk root folder
# ANDROID_TOOLCHAIN_NAME: The android toolchain (arm-linux-androideabi-4.9 or aarch64-linux-android-4.9 or x86-4.9 or x86_64-4.9)
# ANDROID_PLATFORM: The android platform version (android-23)
# More info here: https://godot.readthedocs.io/en/latest/development/compiling/compiling_for_android.html
#
# Examples
#
# Builds a debug version:
# cmake .
# cmake --build .
#
# Builds a release version with clang
# CC=/usr/bin/clang CXX=/usr/bin/clang++ cmake -DCMAKE_BUILD_TYPE=Release -G "Unix Makefiles" .
# cmake --build .
#
# Builds an android armeabi-v7a debug version:
# cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK/build/cmake/android.toolchain.cmake -DANDROID_NDK=$ANDROID_NDK \
# -DANDROID_TOOLCHAIN_NAME=arm-linux-androideabi-4.9 -DANDROID_PLATFORM=android-23 -DCMAKE_BUILD_TYPE=Debug .
# cmake --build .
#
# Protip
# Generate the buildfiles in a sub directory to not clutter the root directory with build files:
# mkdir build && cd build && cmake -G "Unix Makefiles" .. && cmake --build .
#
# Todo
# Test build for Windows, Mac and mingw.
cmake_minimum_required(VERSION 3.13)
project(godot-cpp LANGUAGES CXX)
option(GENERATE_TEMPLATE_GET_NODE "Generate a template version of the Node class's get_node." ON)
option(GODOT_CPP_SYSTEM_HEADERS "Expose headers as SYSTEM." ON)
option(GODOT_CPP_WARNING_AS_ERROR "Treat warnings as errors" OFF)
# Add path to modules
list( APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/" )
# Set some helper variables for readability
set( compiler_is_clang "$<OR:$<CXX_COMPILER_ID:AppleClang>,$<CXX_COMPILER_ID:Clang>>" )
set( compiler_is_gnu "$<CXX_COMPILER_ID:GNU>" )
set( compiler_is_msvc "$<CXX_COMPILER_ID:MSVC>" )
# Default build type is Debug in the SConstruct
if("${CMAKE_BUILD_TYPE}" STREQUAL "")
set(CMAKE_BUILD_TYPE Debug)
endif()
# Hot reload is enabled by default in Debug-builds
if("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
option(GODOT_ENABLE_HOT_RELOAD "Build with hot reload support" ON)
else()
option(GODOT_ENABLE_HOT_RELOAD "Build with hot reload support" OFF)
endif()
if(NOT DEFINED BITS)
set(BITS 32)
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
set(BITS 64)
endif(CMAKE_SIZEOF_VOID_P EQUAL 8)
endif()
# Input from user for GDExtension interface header and the API JSON file
set(GODOT_GDEXTENSION_DIR "gdextension" CACHE STRING "")
set(GODOT_CUSTOM_API_FILE "" CACHE STRING "")
set(GODOT_GDEXTENSION_API_FILE "${GODOT_GDEXTENSION_DIR}/extension_api.json")
if (NOT "${GODOT_CUSTOM_API_FILE}" STREQUAL "") # User-defined override.
set(GODOT_GDEXTENSION_API_FILE "${GODOT_CUSTOM_API_FILE}")
endif()
set(FLOAT_PRECISION "single" CACHE STRING "")
if ("${FLOAT_PRECISION}" STREQUAL "double")
add_definitions(-DREAL_T_IS_DOUBLE)
endif()
set(GODOT_COMPILE_FLAGS )
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
# using Visual Studio C++
set(GODOT_COMPILE_FLAGS "/utf-8") # /GF /MP
if(CMAKE_BUILD_TYPE MATCHES Debug)
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} /MDd") # /Od /RTC1 /Zi
else()
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} /MD /O2") # /Oy /GL /Gy
# Configure CMake
# https://discourse.cmake.org/t/how-do-i-remove-compile-options-from-target/5965
# https://stackoverflow.com/questions/74426638/how-to-remove-rtc1-from-specific-target-or-file-in-cmake
if(${CMAKE_CXX_COMPILER_ID} STREQUAL MSVC)
if(NOT CMAKE_BUILD_TYPE MATCHES Debug)
STRING(REGEX REPLACE "/RTC(su|[1su])" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE "/RTC1" "" CMAKE_CXX_FLAGS_DEBUG ${CMAKE_CXX_FLAGS_DEBUG})
endif(CMAKE_BUILD_TYPE MATCHES Debug)
add_definitions(-DNOMINMAX)
else() # GCC/Clang
if(CMAKE_BUILD_TYPE MATCHES Debug)
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -fno-omit-frame-pointer -O0 -g")
else()
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -O3")
endif(CMAKE_BUILD_TYPE MATCHES Debug)
endif()
# Disable exception handling. Godot doesn't use exceptions anywhere, and this
# saves around 20% of binary size and very significant build time (GH-80513).
option(GODOT_DISABLE_EXCEPTIONS ON "Force disabling exception handling code")
if (GODOT_DISABLE_EXCEPTIONS)
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -D_HAS_EXCEPTIONS=0")
else()
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -fno-exceptions")
endif()
else()
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} /EHsc")
endif ()
endif ()
if (GODOT_ENABLE_HOT_RELOAD)
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -D HOT_RELOAD_ENABLED")
endif()
include( ${PROJECT_SOURCE_DIR}/cmake/godotcpp.cmake )
# Generate source from the bindings file
find_package(Python3 3.4 REQUIRED) # pathlib should be present
if(GENERATE_TEMPLATE_GET_NODE)
set(GENERATE_BINDING_PARAMETERS "True")
else()
set(GENERATE_BINDING_PARAMETERS "False")
endif()
# I know this doesn't look like a typical CMakeLists.txt, but as we are
# attempting mostly feature parity with SCons, and easy maintenance, the closer
# the two build systems look the easier they will be to keep in lockstep.
execute_process(COMMAND "${Python3_EXECUTABLE}" "-c" "import binding_generator; binding_generator.print_file_list(\"${GODOT_GDEXTENSION_API_FILE}\", \"${CMAKE_CURRENT_BINARY_DIR}\", headers=True, sources=True)"
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
OUTPUT_VARIABLE GENERATED_FILES_LIST
OUTPUT_STRIP_TRAILING_WHITESPACE
)
# The typical target definitions are in ${PROJECT_SOURCE_DIR}/cmake/godotcpp.cmake
add_custom_command(OUTPUT ${GENERATED_FILES_LIST}
COMMAND "${Python3_EXECUTABLE}" "-c" "import binding_generator; binding_generator.generate_bindings(\"${GODOT_GDEXTENSION_API_FILE}\", \"${GENERATE_BINDING_PARAMETERS}\", \"${BITS}\", \"${FLOAT_PRECISION}\", \"${CMAKE_CURRENT_BINARY_DIR}\")"
VERBATIM
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
MAIN_DEPENDENCY ${GODOT_GDEXTENSION_API_FILE}
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/binding_generator.py
COMMENT "Generating bindings"
)
godotcpp_options()
# Get Sources
file(GLOB_RECURSE SOURCES CONFIGURE_DEPENDS src/*.c**)
file(GLOB_RECURSE HEADERS CONFIGURE_DEPENDS include/*.h**)
# Define our godot-cpp library
add_library(${PROJECT_NAME} STATIC
${SOURCES}
${HEADERS}
${GENERATED_FILES_LIST}
)
add_library(godot::cpp ALIAS ${PROJECT_NAME})
include(GodotCompilerWarnings)
target_compile_features(${PROJECT_NAME}
PRIVATE
cxx_std_17
)
target_compile_definitions(${PROJECT_NAME} PUBLIC
$<$<CONFIG:Debug>:
DEBUG_ENABLED
DEBUG_METHODS_ENABLED
>
$<${compiler_is_msvc}:
TYPED_METHOD_BIND
>
)
target_link_options(${PROJECT_NAME} PRIVATE
$<$<NOT:${compiler_is_msvc}>:
-static-libgcc
-static-libstdc++
-Wl,-R,'$$ORIGIN'
>
)
# Optionally mark headers as SYSTEM
set(GODOT_CPP_SYSTEM_HEADERS_ATTRIBUTE "")
if (GODOT_CPP_SYSTEM_HEADERS)
set(GODOT_CPP_SYSTEM_HEADERS_ATTRIBUTE SYSTEM)
endif ()
target_include_directories(${PROJECT_NAME} ${GODOT_CPP_SYSTEM_HEADERS_ATTRIBUTE} PUBLIC
include
${CMAKE_CURRENT_BINARY_DIR}/gen/include
${GODOT_GDEXTENSION_DIR}
)
# Add the compile flags
set_property(TARGET ${PROJECT_NAME} APPEND_STRING PROPERTY COMPILE_FLAGS ${GODOT_COMPILE_FLAGS})
# Create the correct name (godot.os.build_type.system_bits)
string(TOLOWER "${CMAKE_SYSTEM_NAME}" SYSTEM_NAME)
string(TOLOWER "${CMAKE_BUILD_TYPE}" BUILD_TYPE)
if(ANDROID)
# Added the android abi after system name
set(SYSTEM_NAME ${SYSTEM_NAME}.${ANDROID_ABI})
# Android does not have the bits at the end if you look at the main godot repo build
set(OUTPUT_NAME "godot-cpp.${SYSTEM_NAME}.${BUILD_TYPE}")
else()
set(OUTPUT_NAME "godot-cpp.${SYSTEM_NAME}.${BUILD_TYPE}.${BITS}")
endif()
set_target_properties(${PROJECT_NAME}
PROPERTIES
CXX_EXTENSIONS OFF
POSITION_INDEPENDENT_CODE ON
ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin"
LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin"
RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin"
OUTPUT_NAME "${OUTPUT_NAME}"
)
godotcpp_generate()

2
cmake/GodotCompilerWarnings.cmake → cmake/common_compiler_flags.cmake
View File

@ -89,6 +89,6 @@ function( set_warning_as_error )
endif()
endfunction()
if ( GODOT_CPP_WARNING_AS_ERROR )
if ( GODOT_WARNING_AS_ERROR )
set_warning_as_error()
endif()

240
cmake/godotcpp.cmake Normal file
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@ -0,0 +1,240 @@
function( godotcpp_options )
#TODO platform
#TODO target
# Input from user for GDExtension interface header and the API JSON file
set(GODOT_GDEXTENSION_DIR "gdextension" CACHE PATH
"Path to a custom directory containing GDExtension interface header and API JSON file ( /path/to/gdextension_dir )" )
set(GODOT_CUSTOM_API_FILE "" CACHE FILEPATH
"Path to a custom GDExtension API JSON file (takes precedence over `gdextension_dir`) ( /path/to/custom_api_file )")
#TODO generate_bindings
option(GODOT_GENERATE_TEMPLATE_GET_NODE
"Generate a template version of the Node class's get_node. (ON|OFF)" ON)
#TODO build_library
set(GODOT_PRECISION "single" CACHE STRING
"Set the floating-point precision level (single|double)")
#TODO arch
#TODO threads
#TODO compiledb
#TODO compiledb_file
#TODO build_profile aka cmake preset
set(GODOT_USE_HOT_RELOAD "" CACHE BOOL
"Enable the extra accounting required to support hot reload. (ON|OFF)")
option(GODOT_DISABLE_EXCEPTIONS "Force disabling exception handling code (ON|OFF)" ON )
set( GODOT_SYMBOL_VISIBILITY "hidden" CACHE STRING
"Symbols visibility on GNU platforms. Use 'auto' to apply the default value. (auto|visible|hidden)")
set_property( CACHE GODOT_SYMBOL_VISIBILITY PROPERTY STRINGS "auto;visible;hidden" )
#TODO optimize
#TODO debug_symbols
#TODO dev_build
# FIXME These options are not present in SCons, and perhaps should be added there.
option(GODOT_SYSTEM_HEADERS "Expose headers as SYSTEM." ON)
option(GODOT_WARNING_AS_ERROR "Treat warnings as errors" OFF)
# Run options commands on the following to populate cache for all platforms.
# This type of thing is typically done conditionally
# But as scons shows all options so shall we.
#TODO ios_options()
#TODO linux_options()
#TODO macos_options()
#TODO web_options()
#TODO windows_options()
endfunction()
function( godotcpp_generate )
# Set some helper variables for readability
set( compiler_is_clang "$<OR:$<CXX_COMPILER_ID:AppleClang>,$<CXX_COMPILER_ID:Clang>>" )
set( compiler_is_gnu "$<CXX_COMPILER_ID:GNU>" )
set( compiler_is_msvc "$<CXX_COMPILER_ID:MSVC>" )
# CXX_VISIBILITY_PRESET supported values are: default, hidden, protected, and internal
# which is inline with the gcc -fvisibility=
# https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html
# To match the scons options we need to change the text to match the -fvisibility flag
# it is probably worth another PR which changes both to use the flag options
if( ${GODOT_SYMBOL_VISIBILITY} STREQUAL "auto" OR ${GODOT_SYMBOL_VISIBILITY} STREQUAL "visible" )
set( GODOT_SYMBOL_VISIBILITY "default" )
endif ()
# Default build type is Debug in the SConstruct
if("${CMAKE_BUILD_TYPE}" STREQUAL "")
set(CMAKE_BUILD_TYPE Debug)
endif()
# Hot reload is enabled by default in Debug-builds
if( GODOT_USE_HOT_RELOAD STREQUAL "" AND NOT CMAKE_BUILD_TYPE STREQUAL "Release")
set(GODOT_USE_HOT_RELOAD ON)
endif()
if(NOT DEFINED BITS)
set(BITS 32)
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
set(BITS 64)
endif(CMAKE_SIZEOF_VOID_P EQUAL 8)
endif()
set(GODOT_GDEXTENSION_API_FILE "${GODOT_GDEXTENSION_DIR}/extension_api.json")
if (NOT "${GODOT_CUSTOM_API_FILE}" STREQUAL "") # User-defined override.
set(GODOT_GDEXTENSION_API_FILE "${GODOT_CUSTOM_API_FILE}")
endif()
if ("${GODOT_PRECISION}" STREQUAL "double")
add_definitions(-DREAL_T_IS_DOUBLE)
endif()
set( GODOT_COMPILE_FLAGS )
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
# using Visual Studio C++
set(GODOT_COMPILE_FLAGS "/utf-8") # /GF /MP
if(CMAKE_BUILD_TYPE MATCHES Debug)
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} /MDd") # /Od /RTC1 /Zi
else()
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} /MD /O2") # /Oy /GL /Gy
endif(CMAKE_BUILD_TYPE MATCHES Debug)
add_definitions(-DNOMINMAX)
else() # GCC/Clang
if(CMAKE_BUILD_TYPE MATCHES Debug)
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -fno-omit-frame-pointer -O0 -g")
else()
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -O3")
endif(CMAKE_BUILD_TYPE MATCHES Debug)
endif()
# Disable exception handling. Godot doesn't use exceptions anywhere, and this
# saves around 20% of binary size and very significant build time (GH-80513).
if (GODOT_DISABLE_EXCEPTIONS)
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -D_HAS_EXCEPTIONS=0")
else()
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -fno-exceptions")
endif()
else()
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} /EHsc")
endif()
endif()
# Generate source from the bindings file
find_package(Python3 3.4 REQUIRED) # pathlib should be present
if(GODOT_GENERATE_TEMPLATE_GET_NODE)
set(GENERATE_BINDING_PARAMETERS "True")
else()
set(GENERATE_BINDING_PARAMETERS "False")
endif()
execute_process(COMMAND "${Python3_EXECUTABLE}" "-c" "import binding_generator; binding_generator.print_file_list(\"${GODOT_GDEXTENSION_API_FILE}\", \"${CMAKE_CURRENT_BINARY_DIR}\", headers=True, sources=True)"
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
OUTPUT_VARIABLE GENERATED_FILES_LIST
OUTPUT_STRIP_TRAILING_WHITESPACE
)
add_custom_command(OUTPUT ${GENERATED_FILES_LIST}
COMMAND "${Python3_EXECUTABLE}" "-c" "import binding_generator; binding_generator.generate_bindings(\"${GODOT_GDEXTENSION_API_FILE}\", \"${GENERATE_BINDING_PARAMETERS}\", \"${BITS}\", \"${GODOT_PRECISION}\", \"${CMAKE_CURRENT_BINARY_DIR}\")"
VERBATIM
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
MAIN_DEPENDENCY ${GODOT_GDEXTENSION_API_FILE}
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/binding_generator.py
COMMENT "Generating bindings"
)
# Get Sources
# As this cmake file was added using 'include(godotcpp)' from the root CMakeLists.txt,
# the ${CMAKE_CURRENT_SOURCE_DIR} is still the root dir.
file(GLOB_RECURSE SOURCES CONFIGURE_DEPENDS src/*.c**)
file(GLOB_RECURSE HEADERS CONFIGURE_DEPENDS include/*.h**)
# Define our godot-cpp library
add_library(${PROJECT_NAME} STATIC
${SOURCES}
${HEADERS}
${GENERATED_FILES_LIST}
)
add_library(godot::cpp ALIAS ${PROJECT_NAME})
include(${PROJECT_SOURCE_DIR}/cmake/common_compiler_flags.cmake)
target_compile_features(${PROJECT_NAME}
PRIVATE
cxx_std_17
)
if(GODOT_USE_HOT_RELOAD)
target_compile_definitions(${PROJECT_NAME} PUBLIC HOT_RELOAD_ENABLED)
target_compile_options(${PROJECT_NAME} PUBLIC $<${compiler_is_gnu}:-fno-gnu-unique>)
endif()
target_compile_definitions(${PROJECT_NAME} PUBLIC
$<$<CONFIG:Debug>:
DEBUG_ENABLED
DEBUG_METHODS_ENABLED
>
$<${compiler_is_msvc}:
TYPED_METHOD_BIND
>
)
target_link_options(${PROJECT_NAME} PRIVATE
$<$<NOT:${compiler_is_msvc}>:
-static-libgcc
-static-libstdc++
-Wl,-R,'$$ORIGIN'
>
)
# Optionally mark headers as SYSTEM
set(GODOT_SYSTEM_HEADERS_ATTRIBUTE "")
if (GODOT_SYSTEM_HEADERS)
set(GODOT_SYSTEM_HEADERS_ATTRIBUTE SYSTEM)
endif ()
target_include_directories(${PROJECT_NAME} ${GODOT_SYSTEM_HEADERS_ATTRIBUTE} PUBLIC
include
${CMAKE_CURRENT_BINARY_DIR}/gen/include
${GODOT_GDEXTENSION_DIR}
)
# Add the compile flags
set_property(TARGET ${PROJECT_NAME} APPEND_STRING PROPERTY COMPILE_FLAGS ${GODOT_COMPILE_FLAGS})
# Create the correct name (godot.os.build_type.system_bits)
string(TOLOWER "${CMAKE_SYSTEM_NAME}" SYSTEM_NAME)
string(TOLOWER "${CMAKE_BUILD_TYPE}" BUILD_TYPE)
if(ANDROID)
# Added the android abi after system name
set(SYSTEM_NAME ${SYSTEM_NAME}.${ANDROID_ABI})
# Android does not have the bits at the end if you look at the main godot repo build
set(OUTPUT_NAME "godot-cpp.${SYSTEM_NAME}.${BUILD_TYPE}")
else()
set(OUTPUT_NAME "godot-cpp.${SYSTEM_NAME}.${BUILD_TYPE}.${BITS}")
endif()
set_target_properties(${PROJECT_NAME}
PROPERTIES
CXX_EXTENSIONS OFF
POSITION_INDEPENDENT_CODE ON
CXX_VISIBILITY_PRESET ${GODOT_SYMBOL_VISIBILITY}
ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin"
LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin"
RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin"
OUTPUT_NAME "${OUTPUT_NAME}"
)
endfunction()

57
doc/cmake.md Normal file
View File

@ -0,0 +1,57 @@
## CMake
### cmake arguments
`CMAKE_BUILD_TYPE`: Compilation target (Debug or Release defaults to Debug)
### godot-cpp cmake arguments
- `GODOT_GDEXTENSION_DIR`: Path to the directory containing GDExtension interface header and API JSON file
- `GODOT_SYSTEM_HEADERS`: Mark the header files as SYSTEM. This may be useful to suppress warnings in projects including this one.
- `GODOT_WARNING_AS_ERROR`: Treat any warnings as errors
- `GODOT_USE_HOT_RELOAD`: Build with hot reload support. Defaults to YES for Debug-builds and NO for Release-builds.
- `GODOT_CUSTOM_API_FILE`: Path to a custom GDExtension API JSON file (takes precedence over `gdextension_dir`)
- `GODOT_PRECISION`: Floating-point precision level ("single", "double")
### Android cmake arguments
- `CMAKE_TOOLCHAIN_FILE`: The path to the android cmake toolchain ($ANDROID_NDK/build/cmake/android.toolchain.cmake)
- `ANDROID_NDK`: The path to the android ndk root folder
- `ANDROID_TOOLCHAIN_NAME`: The android toolchain (arm-linux-androideabi-4.9 or aarch64-linux-android-4.9 or x86-4.9 or x86_64-4.9)
- `ANDROID_PLATFORM`: The android platform version (android-23)
- More info [here](https://godot.readthedocs.io/en/latest/development/compiling/compiling_for_android.html)
## Examples
```shell
Builds a debug version:
cmake .
cmake --build .
```
Builds a release version with clang
```shell
CC=/usr/bin/clang CXX=/usr/bin/clang++ cmake -DCMAKE_BUILD_TYPE=Release -G "Unix Makefiles" .
cmake --build .
```
Builds an android armeabi-v7a debug version:
``` shell
cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK/build/cmake/android.toolchain.cmake -DANDROID_NDK=$ANDROID_NDK \
-DANDROID_TOOLCHAIN_NAME=arm-linux-androideabi-4.9 -DANDROID_PLATFORM=android-23 -DCMAKE_BUILD_TYPE=Debug .
cmake --build .
```
## Protip
Generate the buildfiles in a sub directory to not clutter the root directory with build files:
```shell
mkdir build && cd build && cmake -G "Unix Makefiles" .. && cmake --build .
```
Ensure that you avoid exposing godot-cpp symbols - this might lead to hard to debug errors if you ever load multiple
plugins using difference godot-cpp versions. Use visibility hidden whenever possible:
```cmake
set_target_properties(<all-my-plugin-related-targets> PROPERTIES CXX_VISIBILITY_PRESET hidden)
```
## Todo
Test build for Windows, Mac and mingw.

13
include/godot_cpp/classes/wrapped.hpp
View File

@ -61,6 +61,10 @@ class Wrapped {
thread_local static const StringName *_constructing_extension_class_name;
thread_local static const GDExtensionInstanceBindingCallbacks *_constructing_class_binding_callbacks;
#ifdef HOT_RELOAD_ENABLED
thread_local static GDExtensionObjectPtr _constructing_recreate_owner;
#endif
template <typename T>
_ALWAYS_INLINE_ static void _set_construct_info() {
_constructing_extension_class_name = T::_get_extension_class_name();
@ -71,15 +75,6 @@ protected:
virtual bool _is_extension_class() const { return false; }
static const StringName *_get_extension_class_name(); // This is needed to retrieve the class name before the godot object has its _extension and _extension_instance members assigned.
#ifdef HOT_RELOAD_ENABLED
struct RecreateInstance {
GDExtensionClassInstancePtr wrapper;
GDExtensionObjectPtr owner;
RecreateInstance *next;
};
inline static RecreateInstance *recreate_instance = nullptr;
#endif
void _notification(int p_what) {}
bool _set(const StringName &p_name, const Variant &p_property) { return false; }
bool _get(const StringName &p_name, Variant &r_property) const { return false; }

3
include/godot_cpp/core/class_db.hpp
View File

@ -129,9 +129,8 @@ private:
static GDExtensionClassInstancePtr _recreate_instance_func(void *data, GDExtensionObjectPtr obj) {
if constexpr (!std::is_abstract_v<T>) {
#ifdef HOT_RELOAD_ENABLED
Wrapped::_constructing_recreate_owner = obj;
T *new_instance = (T *)memalloc(sizeof(T));
Wrapped::RecreateInstance recreate_data = { new_instance, obj, Wrapped::recreate_instance };
Wrapped::recreate_instance = &recreate_data;
memnew_placement(new_instance, T);
return new_instance;
#else

2
include/godot_cpp/variant/basis.hpp
View File

@ -224,7 +224,7 @@ struct _NO_DISCARD_ Basis {
operator Quaternion() const { return get_quaternion(); }
static Basis looking_at(const Vector3 &p_target, const Vector3 &p_up = Vector3(0, 1, 0));
static Basis looking_at(const Vector3 &p_target, const Vector3 &p_up = Vector3(0, 1, 0), bool p_use_model_front = false);
Basis(const Quaternion &p_quaternion) { set_quaternion(p_quaternion); }
Basis(const Quaternion &p_quaternion, const Vector3 &p_scale) { set_quaternion_scale(p_quaternion, p_scale); }

27
src/classes/wrapped.cpp
View File

@ -42,6 +42,10 @@ namespace godot {
thread_local const StringName *Wrapped::_constructing_extension_class_name = nullptr;
thread_local const GDExtensionInstanceBindingCallbacks *Wrapped::_constructing_class_binding_callbacks = nullptr;
#ifdef HOT_RELOAD_ENABLED
thread_local GDExtensionObjectPtr Wrapped::_constructing_recreate_owner = nullptr;
#endif
const StringName *Wrapped::_get_extension_class_name() {
return nullptr;
}
@ -55,25 +59,14 @@ void Wrapped::_postinitialize() {
Wrapped::Wrapped(const StringName p_godot_class) {
#ifdef HOT_RELOAD_ENABLED
if (unlikely(Wrapped::recreate_instance)) {
RecreateInstance *recreate_data = Wrapped::recreate_instance;
RecreateInstance *previous = nullptr;
while (recreate_data) {
if (recreate_data->wrapper == this) {
_owner = recreate_data->owner;
if (previous) {
previous->next = recreate_data->next;
} else {
Wrapped::recreate_instance = recreate_data->next;
}
return;
}
previous = recreate_data;
recreate_data = recreate_data->next;
}
}
if (unlikely(Wrapped::_constructing_recreate_owner)) {
_owner = Wrapped::_constructing_recreate_owner;
Wrapped::_constructing_recreate_owner = nullptr;
} else
#endif
{
_owner = godot::internal::gdextension_interface_classdb_construct_object(reinterpret_cast<GDExtensionConstStringNamePtr>(p_godot_class._native_ptr()));
}
if (_constructing_extension_class_name) {
godot::internal::gdextension_interface_object_set_instance(_owner, reinterpret_cast<GDExtensionConstStringNamePtr>(_constructing_extension_class_name), this);

7
src/variant/basis.cpp
View File

@ -1037,12 +1037,15 @@ void Basis::rotate_sh(real_t *p_values) {
p_values[8] = d4 * s_scale_dst4;
}
Basis Basis::looking_at(const Vector3 &p_target, const Vector3 &p_up) {
Basis Basis::looking_at(const Vector3 &p_target, const Vector3 &p_up, bool p_use_model_front) {
#ifdef MATH_CHECKS
ERR_FAIL_COND_V_MSG(p_target.is_zero_approx(), Basis(), "The target vector can't be zero.");
ERR_FAIL_COND_V_MSG(p_up.is_zero_approx(), Basis(), "The up vector can't be zero.");
#endif
Vector3 v_z = -p_target.normalized();
Vector3 v_z = p_target.normalized();
if (!p_use_model_front) {
v_z = -v_z;
}
Vector3 v_x = p_up.cross(v_z);
#ifdef MATH_CHECKS
ERR_FAIL_COND_V_MSG(v_x.is_zero_approx(), Basis(), "The target vector and up vector can't be parallel to each other.");

1
test/SConstruct
View File

@ -42,4 +42,5 @@ else:
source=sources,
)
env.NoCache(library)
Default(library)

2
tools/common_compiler_flags.py
View File

@ -74,7 +74,7 @@ def generate(env):
else:
env.Append(CCFLAGS=["-g2"])
else:
if using_clang(env) and not is_vanilla_clang(env):
if using_clang(env) and not is_vanilla_clang(env) and not env["use_mingw"]:
# Apple Clang, its linker doesn't like -s.
env.Append(LINKFLAGS=["-Wl,-S", "-Wl,-x", "-Wl,-dead_strip"])
else:

1
tools/godotcpp.py
View File

@ -552,6 +552,7 @@ def _godot_cpp(env):
if env["build_library"]:
library = env.StaticLibrary(target=env.File("bin/%s" % library_name), source=sources)
env.NoCache(library)
default_args = [library]
# Add compiledb if the option is set

4
tools/web.py
View File

@ -42,6 +42,10 @@ def generate(env):
env.Append(CCFLAGS=["-sSIDE_MODULE=1"])
env.Append(LINKFLAGS=["-sSIDE_MODULE=1"])
# Enable WebAssembly BigInt <-> i64 conversion.
# This must match the flag used to build Godot (true in official builds since 4.3)
env.Append(LINKFLAGS=["-sWASM_BIGINT"])
# Force wasm longjmp mode.
env.Append(CCFLAGS=["-sSUPPORT_LONGJMP='wasm'"])
env.Append(LINKFLAGS=["-sSUPPORT_LONGJMP='wasm'"])

49
tools/windows.py
View File

@ -1,3 +1,4 @@
import os
import sys
import common_compiler_flags
@ -72,10 +73,13 @@ def silence_msvc(env):
def options(opts):
mingw = os.getenv("MINGW_PREFIX", "")
opts.Add(BoolVariable("use_mingw", "Use the MinGW compiler instead of MSVC - only effective on Windows", False))
opts.Add(BoolVariable("use_clang_cl", "Use the clang driver instead of MSVC - only effective on Windows", False))
opts.Add(BoolVariable("use_static_cpp", "Link MinGW/MSVC C++ runtime libraries statically", True))
opts.Add(BoolVariable("silence_msvc", "Silence MSVC's cl/link stdout bloat, redirecting errors to stderr.", True))
opts.Add(BoolVariable("use_llvm", "Use the LLVM compiler (MVSC or MinGW depending on the use_mingw flag)", False))
opts.Add("mingw_prefix", "MinGW prefix", mingw)
def exists(env):
@ -86,12 +90,22 @@ def generate(env):
if not env["use_mingw"] and msvc.exists(env):
if env["arch"] == "x86_64":
env["TARGET_ARCH"] = "amd64"
elif env["arch"] == "arm64":
env["TARGET_ARCH"] = "arm64"
elif env["arch"] == "arm32":
env["TARGET_ARCH"] = "arm"
elif env["arch"] == "x86_32":
env["TARGET_ARCH"] = "x86"
env["MSVC_SETUP_RUN"] = False # Need to set this to re-run the tool
env["MSVS_VERSION"] = None
env["MSVC_VERSION"] = None
env["is_msvc"] = True
# MSVC, linker, and archiver.
msvc.generate(env)
env.Tool("msvc")
env.Tool("mslib")
env.Tool("mslink")
@ -99,7 +113,7 @@ def generate(env):
env.Append(CCFLAGS=["/utf-8"])
env.Append(LINKFLAGS=["/WX"])
if env["use_clang_cl"]:
if env["use_llvm"]:
env["CC"] = "clang-cl"
env["CXX"] = "clang-cl"
@ -111,7 +125,7 @@ def generate(env):
if env["silence_msvc"] and not env.GetOption("clean"):
silence_msvc(env)
elif sys.platform == "win32" or sys.platform == "msys":
elif (sys.platform == "win32" or sys.platform == "msys") and not env["mingw_prefix"]:
env["use_mingw"] = True
mingw.generate(env)
# Don't want lib prefixes
@ -137,12 +151,32 @@ def generate(env):
else:
env["use_mingw"] = True
# Cross-compilation using MinGW
prefix = "i686" if env["arch"] == "x86_32" else env["arch"]
prefix = ""
if env["mingw_prefix"]:
prefix = env["mingw_prefix"] + "/bin/"
if env["arch"] == "x86_64":
prefix += "x86_64"
elif env["arch"] == "arm64":
prefix += "aarch64"
elif env["arch"] == "arm32":
prefix += "armv7"
elif env["arch"] == "x86_32":
prefix += "i686"
if env["use_llvm"]:
env["CXX"] = prefix + "-w64-mingw32-clang++"
env["CC"] = prefix + "-w64-mingw32-clang"
env["AR"] = prefix + "-w64-mingw32-llvm-ar"
env["RANLIB"] = prefix + "-w64-mingw32-ranlib"
env["LINK"] = prefix + "-w64-mingw32-clang"
else:
env["CXX"] = prefix + "-w64-mingw32-g++"
env["CC"] = prefix + "-w64-mingw32-gcc"
env["AR"] = prefix + "-w64-mingw32-ar"
env["AR"] = prefix + "-w64-mingw32-gcc-ar"
env["RANLIB"] = prefix + "-w64-mingw32-ranlib"
env["LINK"] = prefix + "-w64-mingw32-g++"
# Want dll suffix
env["SHLIBSUFFIX"] = ".dll"
@ -156,6 +190,11 @@ def generate(env):
"-static-libstdc++",
]
)
if env["use_llvm"]:
env.Append(LINKFLAGS=["-lstdc++"])
if sys.platform == "win32" or sys.platform == "msys":
my_spawn.configure(env)
env.Append(CPPDEFINES=["WINDOWS_ENABLED"])