dawn-cmake/CMakeLists.txt

219 lines
8.1 KiB
CMake

# Copyright 2017 The Dawn Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
cmake_minimum_required(VERSION 2.8)
project(nxt C CXX)
if(CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
message(FATAL_ERROR
"In-source builds are unsupported. Use another directory, like build/, "
"as your CMake build directory.\n"
"Note: CMakeFiles/ and CMakeCache.txt may have been generated in the "
"source directory. These may be removed.")
endif()
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE "Debug" CACHE STRING
"Build type (Debug, Release, RelWithDebInfo, MinSizeRel)" FORCE)
endif()
################################################################################
# Configuration options
################################################################################
option(NXT_USE_WERROR "Treat warnings as error (useful for CI)" 0)
# Default values for the backend-enabling options
set(ENABLE_D3D12 OFF)
set(ENABLE_METAL OFF)
if (WIN32)
set(ENABLE_D3D12 ON)
elseif(APPLE)
set(ENABLE_METAL ON)
endif()
option(NXT_ENABLE_D3D12 "Enable compilation of the D3D12 backend" ${ENABLE_D3D12})
option(NXT_ENABLE_METAL "Enable compilation of the Metal backend" ${ENABLE_METAL})
option(NXT_ENABLE_NULL "Enable compilation of the Null backend" ON)
option(NXT_ENABLE_OPENGL "Enable compilation of the OpenGL backend" ON)
option(NXT_ENABLE_VULKAN "Enable compilation of the Vulkan backend" OFF)
option(NXT_ALWAYS_ASSERT "Enable assertions on all build types" OFF)
option(NXT_USE_CPP17 "Use some optional C++17 features for compile-time checks" OFF)
################################################################################
# Precompute compile flags and defines, functions to set them
################################################################################
set(NXT_FLAGS "")
set(NXT_DEFS "")
set(NXT_INTERNAL_FLAGS "")
set(NXT_INTERNAL_DEFS "")
set(NXT_GENERATED_FLAGS "")
set(NXT_ENABLE_ASSERTS $<OR:$<CONFIG:Debug>,$<BOOL:${NXT_ALWAYS_ASSERT}>>)
list(APPEND NXT_DEFS $<${NXT_ENABLE_ASSERTS}:NXT_ENABLE_ASSERTS>)
if (NXT_USE_CPP17)
list(APPEND NXT_INTERNAL_DEFS "NXT_CPP_VERSION=17")
else()
list(APPEND NXT_INTERNAL_DEFS "NXT_CPP_VERSION=14")
endif()
if (NXT_ENABLE_D3D12)
list(APPEND NXT_INTERNAL_DEFS "NXT_ENABLE_BACKEND_D3D12")
endif()
if (NXT_ENABLE_METAL)
list(APPEND NXT_INTERNAL_DEFS "NXT_ENABLE_BACKEND_METAL")
endif()
if (NXT_ENABLE_NULL)
list(APPEND NXT_INTERNAL_DEFS "NXT_ENABLE_BACKEND_NULL")
endif()
if (NXT_ENABLE_OPENGL)
list(APPEND NXT_INTERNAL_DEFS "NXT_ENABLE_BACKEND_OPENGL")
endif()
if (NXT_ENABLE_VULKAN)
list(APPEND NXT_INTERNAL_DEFS "NXT_ENABLE_BACKEND_VULKAN")
endif()
if (WIN32)
# Define NOMINMAX to prevent conflicts between std::min/max and the min/max macros in WinDef.h
list(APPEND NXT_DEFS "NOMINMAX")
# Avoid Windows.h including a lot of headers
list(APPEND NXT_DEFS "WIN32_LEAN_AND_MEAN")
# Remove compile error where the mock NXT creates too many sections for the old obj format.
list(APPEND NXT_FLAGS "/bigobj")
endif()
if (MSVC)
list(APPEND NXT_FLAGS "/std:c++14")
list(APPEND NXT_FLAGS "/EHsc")
list(APPEND NXT_INTERNAL_FLAGS "/W4")
# Allow declarations hiding members as it is used all over NXT
list(APPEND NXT_INTERNAL_FLAGS "/wd4458")
list(APPEND NXT_INTERNAL_FLAGS "/wd4996") # Allow deprecated functions like strncpy
list(APPEND NXT_GENERATED_FLAGS "/wd4702") # Allow unreachable code
list(APPEND NXT_GENERATED_FLAGS "/wd4189") # Allow unused variable
if(NXT_USE_WERROR)
list(APPEND NXT_INTERNAL_FLAGS "/WX")
endif()
else()
# Activate C++14 only on C++ files, not C files.
list(APPEND NXT_FLAGS "$<$<STREQUAL:$<TARGET_PROPERTY:LINKER_LANGUAGE>,CXX>:-std=c++14>")
# enable -Wold-style-cast on C++
list(APPEND NXT_FLAGS "$<$<STREQUAL:$<TARGET_PROPERTY:LINKER_LANGUAGE>,CXX>:-Wold-style-cast>")
list(APPEND NXT_FLAGS "-fPIC")
list(APPEND NXT_INTERNAL_FLAGS "-Wall" "-Wextra")
list(APPEND NXT_INTERNAL_FLAGS "-pedantic")
list(APPEND NXT_GENERATED_FLAGS "-Wno-unused-variable" "-Wno-unused-function")
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
# don't break the build on older clang versions
list(APPEND NXT_INTERNAL_FLAGS "-Wno-error=unknown-warning-option")
# GCC's conversion warnings are less useful than clang's
list(APPEND NXT_INTERNAL_FLAGS "-Wconversion" "-Wno-sign-conversion")
# disable a clang-only -pedantic warning
list(APPEND NXT_INTERNAL_FLAGS "-Wno-gnu-zero-variadic-macro-arguments")
# additional potentially useful warnings (feel free to remove if they prove un-useful)
list(APPEND NXT_INTERNAL_FLAGS "-Wextra-semi")
list(APPEND NXT_INTERNAL_FLAGS "-Wstrict-aliasing")
list(APPEND NXT_INTERNAL_FLAGS "-Wunreachable-code")
list(APPEND NXT_GENERATED_FLAGS "-Wno-unreachable-code")
# Probably okay to enable if we establish a field naming convention:
#list(APPEND NXT_INTERNAL_FLAGS "-Wshadow")
endif()
if(NXT_USE_WERROR)
list(APPEND NXT_INTERNAL_FLAGS "-Werror")
endif()
endif()
function(NXTExternalTarget folder target)
set_property(TARGET ${target} APPEND PROPERTY COMPILE_OPTIONS ${NXT_FLAGS})
set_property(TARGET ${target} APPEND PROPERTY COMPILE_DEFINITIONS ${NXT_DEFS})
set_property(TARGET ${target} PROPERTY FOLDER "nxt/${folder}")
endfunction()
function(NXTInternalTarget folder target)
NXTExternalTarget("${folder}" ${target})
set_property(TARGET ${target} APPEND PROPERTY COMPILE_OPTIONS ${NXT_INTERNAL_FLAGS})
set_property(TARGET ${target} APPEND PROPERTY COMPILE_DEFINITIONS ${NXT_INTERNAL_DEFS})
# Group the target sources by folder to have folders show in Visual Studio
if (MSVC)
get_target_property(targetSources ${target} SOURCES)
foreach(sourceFile IN ITEMS ${targetSources})
if (IS_ABSOLUTE "${sourceFile}")
file(RELATIVE_PATH sourceFile "${CMAKE_CURRENT_SOURCE_DIR}" "${sourceFile}")
endif()
get_filename_component(sourceDir "${sourceFile}" PATH)
string(REPLACE "/" "\\" sourceDir "${sourceDir}")
source_group("${sourceDir}" FILES "${sourceFile}")
endforeach()
endif()
endfunction()
# Enable the creation of folders for Visual Studio projects
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
# Output shared libs and executables directly in the build directory
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
################################################################################
# Generate the C and C++ NXT APIs
################################################################################
set(INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src/include)
set(SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src)
add_subdirectory(generator)
Generate(
LIB_NAME nxt
LIB_TYPE STATIC
PRINT_NAME libNXT
COMMAND_LINE_ARGS
${GENERATOR_COMMON_ARGS}
-T nxt
)
target_include_directories(nxt PUBLIC ${GENERATED_DIR})
Generate(
LIB_NAME nxtcpp
LIB_TYPE STATIC
PRINT_NAME libNXT++
COMMAND_LINE_ARGS
${GENERATOR_COMMON_ARGS}
-T nxtcpp
)
target_include_directories(nxtcpp PUBLIC ${GENERATED_DIR} PUBLIC ${INCLUDE_DIR})
target_link_libraries(nxtcpp nxt)
################################################################################
# Call to other CMakeLists.txt
################################################################################
add_subdirectory(third_party)
add_subdirectory(src/common)
add_subdirectory(src/backend)
add_subdirectory(src/wire)
add_subdirectory(src/utils)
add_subdirectory(src/tests)
add_subdirectory(examples)