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# Copyright 2018 The Amber 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 3.1)
if (POLICY CMP0048)
cmake_policy(SET CMP0048 NEW)
endif()
if (POLICY CMP0054)
# Avoid dereferencing variables or interpret keywords that have been
# quoted or bracketed.
# https://cmake.org/cmake/help/v3.1/policy/CMP0054.html
cmake_policy(SET CMP0054 NEW)
endif()
project(amber)
enable_testing()
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR})
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
set(CMAKE_CXX_STANDARD 11)
include(CheckIncludeFile)
include(GNUInstallDirs)
option(AMBER_SKIP_TESTS
"Skip building tests along with the library" ${AMBER_SKIP_TESTS})
option(AMBER_SKIP_SPIRV_TOOLS
"Skip building spirv-tools into the library" ${AMBER_SKIP_SPIRV_TOOLS})
option(AMBER_SKIP_SHADERC
"Skip building Shaderc into the library" ${AMBER_SKIP_SHADERC})
if (${AMBER_SKIP_SPIRV_TOOLS})
set(AMBER_ENABLE_SPIRV_TOOLS FALSE)
set(AMBER_ENABLE_SHADERC FALSE)
else()
set(AMBER_ENABLE_SPIRV_TOOLS TRUE)
if (${AMBER_SKIP_SHADERC})
set(AMBER_ENABLE_SHADERC FALSE)
else()
set(AMBER_ENABLE_SHADERC TRUE)
endif()
endif()
if (${AMBER_SKIP_TESTS})
set(AMBER_ENABLE_TESTS FALSE)
else()
set(AMBER_ENABLE_TESTS TRUE)
endif()
message(STATUS "Amber enable SPIRV-Tools: ${AMBER_ENABLE_SPIRV_TOOLS}")
message(STATUS "Amber enable Shaderc: ${AMBER_ENABLE_SHADERC}")
message(STATUS "Amber enable tests: ${AMBER_ENABLE_TESTS}")
include_directories("${PROJECT_SOURCE_DIR}/include")
include_directories("${PROJECT_SOURCE_DIR}")
if (${AMBER_ENABLE_SPIRV_TOOLS})
include_directories("${PROJECT_SOURCE_DIR}/third_party/spirv-tools/include")
endif()
include(src/dawn/find_dawn.cmake)
include(src/vulkan/find_vulkan.cmake)
add_definitions(-DAMBER_ENGINE_VULKAN=$<BOOL:${Vulkan_FOUND}>)
add_definitions(-DAMBER_ENGINE_DAWN=$<BOOL:${Dawn_FOUND}>)
add_definitions(-DAMBER_ENABLE_SPIRV_TOOLS=$<BOOL:${AMBER_ENABLE_SPIRV_TOOLS}>)
add_definitions(-DAMBER_ENABLE_SHADERC=$<BOOL:${AMBER_ENABLE_SHADERC}>)
if ("${CMAKE_BUILD_TYPE}" STREQUAL "")
message(STATUS "No build type selected, default to Debug")
set(CMAKE_BUILD_TYPE "Debug")
endif()
if(("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU") OR
(("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang") AND
(NOT CMAKE_CXX_SIMULATE_ID STREQUAL "MSVC")))
set(COMPILER_IS_LIKE_GNU TRUE)
endif()
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
set(CUSTOM_CXX_FLAGS
${CUSTOM_CXX_FLAGS}
-std=c++11
-fvisibility=hidden
-Wall
-Werror
-Weverything
-Wextra
-Wno-c++98-compat
-Wno-c++98-compat-pedantic
-Wno-padded
-Wno-switch-enum
-Wno-unknown-pragmas
-Wno-unknown-warning-option)
elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
set(CUSTOM_CXX_FLAGS
${CUSTOM_CXX_FLAGS}
-std=c++11
-fvisibility=hidden
-Wall
-Werror
-Wextra
-Wno-unknown-pragmas
-Wpedantic
-pedantic-errors)
elseif(MSVC)
# We don't want to have to copy the C Runtime DLL everywhere the executable
# goes. So compile code to assume the CRT is statically linked, i.e. use
# /MT* options. For debug builds use /MTd, and for release builds use /MT.
if(CMAKE_BUILD_TYPE MATCHES "Debug")
set(CUSTOM_CXX_FLAGS ${CUSTOM_CXX_FLAGS} /MTd)
message(STATUS "Setting /MTd")
elseif(CMAKE_BUILD_TYPE MATCHES "RelWithDebInfo")
set(CUSTOM_CXX_FLAGS ${CUSTOM_CXX_FLAGS} /MT)
message(STATUS "Setting /MT")
else()
set(CUSTOM_CXX_FLAGS ${CUSTOM_CXX_FLAGS} /MT)
message(STATUS "Setting /MT")
endif()
set(CUSTOM_CXX_FLAGS
${CUSTOM_CXX_FLAGS}
/bigobj
/EHsc
/W3
/WX
/wd4068
/wd4514
/wd4571
/wd4625
/wd4626
/wd4710
/wd4774
/wd4820
/wd5026
/wd5027
)
endif()
SET(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} "${CUSTOM_CXX_FLAGS}")
STRING(REGEX REPLACE ";" " " CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
function(amber_default_compile_options TARGET)
if (${COMPILER_IS_LIKE_GNU})
target_compile_options(${TARGET} PRIVATE
-fno-exceptions
-fno-rtti)
endif()
if (MSVC)
# Specify /EHs for exception handling.
target_compile_options(${TARGET} PRIVATE /EHs)
endif()
# For MinGW cross compile, statically link to the C++ runtime.
# But it still depends on MSVCRT.dll.
if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
if (${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU")
set_target_properties(${TARGET} PROPERTIES LINK_FLAGS
-static
-static-libgcc
-static-libstdc++)
endif()
endif()
endfunction()
add_subdirectory(third_party)
add_subdirectory(src)
add_subdirectory(samples)
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