| # Copyright 2020 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 3.10) |
| |
| # When upgrading to CMake 3.11 we can remove DAWN_DUMMY_FILE because source-less add_library |
| # becomes available. |
| # When upgrading to CMake 3.12 we should add CONFIGURE_DEPENDS to DawnGenerator to rerun CMake in |
| # case any of the generator files changes. We should also remove the CACHE "" FORCE stuff to |
| # override options in third_party dependencies. We can also add the HOMEPAGE_URL |
| # entry to the project `HOMEPAGE_URL "https://dawn.googlesource.com/dawn"` |
| |
| project( |
| Dawn |
| DESCRIPTION "Dawn, a WebGPU implementation" |
| LANGUAGES C CXX |
| ) |
| |
| set_property(GLOBAL PROPERTY USE_FOLDERS ON) |
| |
| if(NOT CMAKE_BUILD_TYPE) |
| message(WARNING "CMAKE_BUILD_TYPE not set, forcing it to Debug") |
| set(CMAKE_BUILD_TYPE "Debug" CACHE STRING |
| "Build type (Debug, Release, RelWithDebInfo, MinSizeRel)" FORCE) |
| endif() |
| |
| set(DAWN_BUILD_GEN_DIR "${Dawn_BINARY_DIR}/gen") |
| set(DAWN_GENERATOR_DIR "${Dawn_SOURCE_DIR}/generator") |
| set(DAWN_SRC_DIR "${Dawn_SOURCE_DIR}/src") |
| set(DAWN_INCLUDE_DIR "${Dawn_SOURCE_DIR}/include") |
| set(DAWN_TEMPLATE_DIR "${DAWN_GENERATOR_DIR}/templates") |
| |
| set(DAWN_DUMMY_FILE "${DAWN_SRC_DIR}/Dummy.cpp") |
| |
| ################################################################################ |
| # Configuration options |
| ################################################################################ |
| |
| # option_if_not_defined(name description default) |
| # Behaves like: |
| # option(name description default) |
| # If a variable is not already defined with the given name, otherwise the |
| # function does nothing. |
| # Simplifies customization by projects that use Dawn as a dependency. |
| function (option_if_not_defined name description default) |
| if(NOT DEFINED ${name}) |
| option(${name} ${description} ${default}) |
| endif() |
| endfunction() |
| |
| # set_if_not_defined(name value description) |
| # Behaves like: |
| # set(${name} ${value} CACHE STRING ${description}) |
| # If a variable is not already defined with the given name, otherwise the |
| # function does nothing. |
| # Simplifies customization by projects that use Dawn as a dependency. |
| function (set_if_not_defined name value description) |
| if(NOT DEFINED ${name}) |
| set(${name} ${value} CACHE STRING ${description}) |
| endif() |
| endfunction() |
| |
| # Default values for the backend-enabling options |
| set(ENABLE_D3D12 OFF) |
| set(ENABLE_METAL OFF) |
| set(ENABLE_OPENGLES OFF) |
| set(ENABLE_DESKTOP_GL OFF) |
| set(ENABLE_VULKAN OFF) |
| set(USE_X11 OFF) |
| set(BUILD_SAMPLES OFF) |
| if (WIN32) |
| set(ENABLE_D3D12 ON) |
| if (NOT WINDOWS_STORE) |
| # Enable Vulkan in win32 compilation only |
| # since UWP only supports d3d |
| set(ENABLE_VULKAN ON) |
| endif() |
| elseif(APPLE) |
| set(ENABLE_METAL ON) |
| elseif(ANDROID) |
| set(ENABLE_VULKAN ON) |
| set(ENABLE_OPENGLES ON) |
| elseif(UNIX) |
| set(ENABLE_OPENGLES ON) |
| set(ENABLE_DESKTOP_GL ON) |
| set(ENABLE_VULKAN ON) |
| set(USE_X11 ON) |
| endif() |
| |
| # GLFW is not supported in UWP |
| if((WIN32 AND NOT WINDOWS_STORE) OR UNIX AND NOT ANDROID) |
| set(DAWN_SUPPORTS_GLFW_FOR_WINDOWING ON) |
| endif() |
| |
| # Current examples are depend on GLFW |
| if (DAWN_SUPPORTS_GLFW_FOR_WINDOWING) |
| set(BUILD_SAMPLES ON) |
| endif() |
| |
| option_if_not_defined(DAWN_ENABLE_D3D12 "Enable compilation of the D3D12 backend" ${ENABLE_D3D12}) |
| option_if_not_defined(DAWN_ENABLE_METAL "Enable compilation of the Metal backend" ${ENABLE_METAL}) |
| option_if_not_defined(DAWN_ENABLE_NULL "Enable compilation of the Null backend" ON) |
| option_if_not_defined(DAWN_ENABLE_DESKTOP_GL "Enable compilation of the OpenGL backend" ${ENABLE_DESKTOP_GL}) |
| option_if_not_defined(DAWN_ENABLE_OPENGLES "Enable compilation of the OpenGL ES backend" ${ENABLE_OPENGLES}) |
| option_if_not_defined(DAWN_ENABLE_VULKAN "Enable compilation of the Vulkan backend" ${ENABLE_VULKAN}) |
| option_if_not_defined(DAWN_ALWAYS_ASSERT "Enable assertions on all build types" OFF) |
| option_if_not_defined(DAWN_USE_X11 "Enable support for X11 surface" ${USE_X11}) |
| |
| option_if_not_defined(DAWN_BUILD_SAMPLES "Enables building Dawn's samples" ${BUILD_SAMPLES}) |
| option_if_not_defined(DAWN_BUILD_NODE_BINDINGS "Enables building Dawn's NodeJS bindings" OFF) |
| |
| option_if_not_defined(DAWN_ENABLE_PIC "Build with Position-Independent-Code enabled" OFF) |
| |
| set_if_not_defined(DAWN_THIRD_PARTY_DIR "${Dawn_SOURCE_DIR}/third_party" "Directory in which to find third-party dependencies.") |
| |
| # Recommended setting for compability with future abseil releases. |
| set(ABSL_PROPAGATE_CXX_STD ON) |
| |
| set_if_not_defined(DAWN_ABSEIL_DIR "${DAWN_THIRD_PARTY_DIR}/abseil-cpp" "Directory in which to find Abseil") |
| set_if_not_defined(DAWN_GLFW_DIR "${DAWN_THIRD_PARTY_DIR}/glfw" "Directory in which to find GLFW") |
| set_if_not_defined(DAWN_JINJA2_DIR "${DAWN_THIRD_PARTY_DIR}/jinja2" "Directory in which to find Jinja2") |
| set_if_not_defined(DAWN_SPIRV_HEADERS_DIR "${DAWN_THIRD_PARTY_DIR}/vulkan-deps/spirv-headers/src" "Directory in which to find SPIRV-Headers") |
| set_if_not_defined(DAWN_SPIRV_TOOLS_DIR "${DAWN_THIRD_PARTY_DIR}/vulkan-deps/spirv-tools/src" "Directory in which to find SPIRV-Tools") |
| set_if_not_defined(DAWN_TINT_DIR "${DAWN_THIRD_PARTY_DIR}/tint" "Directory in which to find Tint") |
| |
| # Dependencies for DAWN_BUILD_NODE_BINDINGS |
| set_if_not_defined(NODE_ADDON_API_DIR "${DAWN_THIRD_PARTY_DIR}/node-addon-api" "Directory in which to find node-addon-api") |
| set_if_not_defined(NODE_API_HEADERS_DIR "${DAWN_THIRD_PARTY_DIR}/node-api-headers" "Directory in which to find node-api-headers") |
| set_if_not_defined(WEBGPU_IDL_PATH "${DAWN_THIRD_PARTY_DIR}/gpuweb/webgpu.idl" "Path to the webgpu.idl definition file") |
| set_if_not_defined(GO_EXECUTABLE "go" "Golang executable for running the IDL generator") |
| |
| # Much of the backend code is shared among desktop OpenGL and OpenGL ES |
| if (${DAWN_ENABLE_DESKTOP_GL} OR ${DAWN_ENABLE_OPENGLES}) |
| set(DAWN_ENABLE_OPENGL ON) |
| endif() |
| |
| if(DAWN_ENABLE_PIC) |
| set(CMAKE_POSITION_INDEPENDENT_CODE ON) |
| endif() |
| |
| ################################################################################ |
| # Dawn's public and internal "configs" |
| ################################################################################ |
| |
| # The public config contains only the include paths for the Dawn headers. |
| add_library(dawn_public_config INTERFACE) |
| target_include_directories(dawn_public_config INTERFACE |
| "${DAWN_INCLUDE_DIR}" |
| "${DAWN_BUILD_GEN_DIR}/include" |
| ) |
| |
| # The internal config conatins additional path but includes the dawn_public_config include paths |
| add_library(dawn_internal_config INTERFACE) |
| target_include_directories(dawn_internal_config INTERFACE |
| "${DAWN_SRC_DIR}" |
| "${DAWN_BUILD_GEN_DIR}/src" |
| ) |
| target_link_libraries(dawn_internal_config INTERFACE dawn_public_config) |
| |
| # Compile definitions for the internal config |
| if (DAWN_ALWAYS_ASSERT OR $<CONFIG:Debug>) |
| target_compile_definitions(dawn_internal_config INTERFACE "DAWN_ENABLE_ASSERTS") |
| endif() |
| if (DAWN_ENABLE_D3D12) |
| target_compile_definitions(dawn_internal_config INTERFACE "DAWN_ENABLE_BACKEND_D3D12") |
| endif() |
| if (DAWN_ENABLE_METAL) |
| target_compile_definitions(dawn_internal_config INTERFACE "DAWN_ENABLE_BACKEND_METAL") |
| endif() |
| if (DAWN_ENABLE_NULL) |
| target_compile_definitions(dawn_internal_config INTERFACE "DAWN_ENABLE_BACKEND_NULL") |
| endif() |
| if (DAWN_ENABLE_DESKTOP_GL) |
| target_compile_definitions(dawn_internal_config INTERFACE "DAWN_ENABLE_BACKEND_DESKTOP_GL") |
| endif() |
| if (DAWN_ENABLE_OPENGLES) |
| target_compile_definitions(dawn_internal_config INTERFACE "DAWN_ENABLE_BACKEND_OPENGLES") |
| endif() |
| if (DAWN_ENABLE_OPENGL) |
| target_compile_definitions(dawn_internal_config INTERFACE "DAWN_ENABLE_BACKEND_OPENGL") |
| endif() |
| if (DAWN_ENABLE_VULKAN) |
| target_compile_definitions(dawn_internal_config INTERFACE "DAWN_ENABLE_BACKEND_VULKAN") |
| endif() |
| if (DAWN_USE_X11) |
| target_compile_definitions(dawn_internal_config INTERFACE "DAWN_USE_X11") |
| endif() |
| if (WIN32) |
| target_compile_definitions(dawn_internal_config INTERFACE "NOMINMAX" "WIN32_LEAN_AND_MEAN") |
| endif() |
| |
| set(CMAKE_CXX_STANDARD "17") |
| |
| ################################################################################ |
| # Run on all subdirectories |
| ################################################################################ |
| |
| add_subdirectory(third_party) |
| add_subdirectory(generator) |
| add_subdirectory(src/dawn) |
| |
| ################################################################################ |
| # Samples |
| ################################################################################ |
| |
| if (DAWN_BUILD_SAMPLES) |
| #TODO(dawn:269): Add this once implementation-based swapchains are removed. |
| #add_subdirectory(src/utils) |
| add_subdirectory(samples/dawn) |
| endif() |