raylib/examples/CMakeLists.txt
hristo 88a6f16c9a
Documentation cmake (#1549)
* Documenting the compiler flags

* Moved some android compiler flags and added documentation on them too.

* Some more restructuring.

Removed unnecessary comments that were self described by the code.
Added some more explanations around certain parts of CMake and especially around compiler flags.
2021-01-26 14:34:27 +01:00

139 lines
6.1 KiB
CMake

# Setup the project and settings
project(examples)
# Directories that contain examples
set(example_dirs
audio
core
models
others
shaders
shapes
text
textures
)
# Next few lines will check for existence of symbols or header files
# They are needed for the physac example and threads examples
set(CMAKE_REQUIRED_DEFINITIONS -D_POSIX_C_SOURCE=199309L)
include(CheckSymbolExists)
check_symbol_exists(CLOCK_MONOTONIC time.h HAVE_CLOCK_MONOTONIC)
check_symbol_exists(QueryPerformanceCounter windows.h HAVE_QPC)
set(CMAKE_REQUIRED_DEFINITIONS)
if (HAVE_QPC OR HAVE_CLOCK_MONOTONIC)
set(example_dirs ${example_dirs} physac)
endif ()
include(CheckIncludeFile)
CHECK_INCLUDE_FILE("stdatomic.h" HAVE_STDATOMIC_H)
set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
find_package(Threads)
if (CMAKE_USE_PTHREADS_INIT AND HAVE_STDATOMIC_H)
add_if_flag_compiles("-std=c11" CMAKE_C_FLAGS)
if (THREADS_HAVE_PTHREAD_ARG)
add_if_flag_compiles("-pthread" CMAKE_C_FLAGS)
endif ()
if (CMAKE_THREAD_LIBS_INIT)
link_libraries("${CMAKE_THREAD_LIBS_INIT}")
endif ()
endif ()
if (APPLE AND NOT CMAKE_SYSTEM STRLESS "Darwin-18.0.0")
add_definitions(-DGL_SILENCE_DEPRECATION)
MESSAGE(AUTHOR_WARNING "OpenGL is deprecated starting with macOS 10.14 (Mojave)!")
endif ()
# Collect all source files and resource files
# into a CMake variable
set(example_sources)
set(example_resources)
foreach (example_dir ${example_dirs})
# Get the .c files
file(GLOB sources ${example_dir}/*.c)
list(APPEND example_sources ${sources})
# Any any resources
file(GLOB resources ${example_dir}/resources/*)
list(APPEND example_resources ${resources})
endforeach ()
if(NOT CMAKE_USE_PTHREADS_INIT OR NOT HAVE_STDATOMIC_H)
# Items requiring pthreads
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/core/core_loading_thread.c)
endif ()
if (${PLATFORM} MATCHES "Android")
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/others/rlgl_standalone.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/others/standard_lighting.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/core/core_3d_picking.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/core/core_vr_simulator.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/core/core_3d_camera_free.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/core/core_3d_camera_first_person.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/core/core_world_screen.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_mesh_picking.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_material_pbr.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_cubicmap.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_skybox.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_mesh_picking.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_mesh_generation.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_heightmap.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_billboard.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_rlgl_solar_system.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_rlgl_full_solar_system.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_solar_system.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_obj_viewer.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_animation.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/models/models_first_person_maze.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/shaders/shaders_custom_uniform.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/shaders/shaders_model_shader.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/shaders/shaders_postprocessing.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/shaders/shaders_raymarching.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/shaders/shaders_palette_switch.c)
list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/shaders/shaders_basic_lighting.c)
elseif (${PLATFORM} MATCHES "Web")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Os -s USE_GLFW=3 -s ASSERTIONS=1 -s WASM=1 -s ASYNCIFY")
# Since WASM is used, ALLOW_MEMORY_GROWTH has no extra overheads
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s ALLOW_MEMORY_GROWTH=1 --no-heap-copy")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --shell-file ${CMAKE_SOURCE_DIR}/src/shell.html")
set(CMAKE_EXECUTABLE_SUFFIX ".html")
# Remove the -rdynamic flag because otherwise emscripten
# does not generate HTML+JS+WASM files, only a non-working
# and fat HTML
string(REPLACE "-rdynamic" "" CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "${CMAKE_SHARED_LIBRARY_LINK_C_FLAGS}")
endif ()
include_directories(BEFORE SYSTEM others/external/include)
if (NOT TARGET raylib)
find_package(raylib 2.0 REQUIRED)
endif ()
# Do each example
foreach (example_source ${example_sources})
# Create the basename for the example
get_filename_component(example_name ${example_source} NAME)
string(REPLACE ".c" "" example_name ${example_name})
# Setup the example
add_executable(${example_name} ${example_source})
target_link_libraries(${example_name} raylib)
string(REGEX MATCH ".*/.*/" resources_dir ${example_source})
string(APPEND resources_dir "resources")
if (${PLATFORM} MATCHES "Web" AND EXISTS ${resources_dir})
# The local resources path needs to be mapped to /resources virtual path
string(APPEND resources_dir "@resources")
set_target_properties(${example_name} PROPERTIES LINK_FLAGS "--preload-file ${resources_dir}")
endif ()
endforeach ()
# Copy all of the resource files to the destination
file(COPY ${example_resources} DESTINATION "resources/")