ports: ported to emscripten

[flatwaifu.git] / src / CMakeLists.txt

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index e496d8cf2f59118da7f79497d79473752d4e71e4..d39526222f66f8dc959d51057ee26232d4ec98a0 100644 (file)
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,6 +1,10 @@
 cmake_minimum_required(VERSION 3.6)
 project(doom2d C)
 
+string(COMPARE EQUAL "${CMAKE_SYSTEM_NAME}" "Emscripten" D2D_FOR_EMSCRIPTEN)
+string(COMPARE EQUAL "${CMAKE_SYSTEM_NAME}" "Darwin" D2D_FOR_DARWIN)
+string(COMPARE EQUAL "${CMAKE_SYSTEM_PROCESSOR}" "powerpc" D2D_FOR_POWERPC)
+
 option(SYSTEM_DRIVER "Build with selected system driver" "SDL")
 option(RENDER_DRIVER "Build with selected render driver" "OpenGL")
 option(SOUND_DRIVER "Build with selected sound driver" "OpenAL")
@@ -28,9 +32,6 @@ set(D2D_SDLMIXER_ROOT ${D2D_GAME_ROOT}/sdlmixer)
 set(D2D_OPENAL_ROOT ${D2D_GAME_ROOT}/openal)
 set(D2D_STUBSOUND_ROOT ${D2D_GAME_ROOT}/stubsnd)
 
-string(COMPARE EQUAL "${CMAKE_SYSTEM_NAME}" "Darwin" D2D_FOR_DARWIN)
-string(COMPARE EQUAL "${CMAKE_SYSTEM_PROCESSOR}" "powerpc" D2D_FOR_POWERPC)
-
 aux_source_directory(${D2D_GAME_ROOT} D2D_GAME_SRC)
 aux_source_directory(${D2D_SDL_ROOT} D2D_SDL_SRC)
 aux_source_directory(${D2D_SDL2_ROOT} D2D_SDL2_SRC)
@@ -43,44 +44,65 @@ aux_source_directory(${D2D_OPENAL_ROOT} D2D_OPENAL_SRC)
 aux_source_directory(${D2D_STUBSOUND_ROOT} D2D_STUBSOUND_SRC)
 
 if(WITH_SDL)
-  find_package(SDL REQUIRED)
-  set(D2D_SYSTEM_SRC "${D2D_SDL_SRC}")
-  set(D2D_SYSTEM_INCLUDE_DIR "${SDL_INCLUDE_DIR}")
-  set(D2D_SYSTEM_LIBRARY "${SDL_LIBRARY}")
+  if(D2D_FOR_EMSCRIPTEN)
+    set(D2D_SYSTEM_SRC "${D2D_SDL_SRC}")
+    set(D2D_SYSTEM_INCLUDE_DIR "")
+    set(D2D_SYSTEM_LIBRARY "-lSDL")
+    set(D2D_SYSTEM_LINKFLAGS "-s USE_SDL=1")
+  else()
+    find_package(SDL REQUIRED)
+    set(D2D_SYSTEM_SRC "${D2D_SDL_SRC}")
+    set(D2D_SYSTEM_INCLUDE_DIR "${SDL_INCLUDE_DIR}")
+    set(D2D_SYSTEM_LIBRARY "${SDL_LIBRARY}")
+  endif()
 elseif(WITH_SDL2)
-  if(D2D_FOR_DARWIN AND D2D_FOR_POWERPC)
-    # tigerbrew did not provide sdl2 module for cmake
-    find_package(SDL2)
-    if(NOT SDL2_FOUND)
-      set(SDL2_INCLUDE_DIRS "/usr/local/include/SDL2")
-      set(SDL2_LIBRARIES "-lSDL2")
-    endif(NOT SDL2_FOUND)
-  else(D2D_FOR_DARWIN AND D2D_FOR_POWERPC)
-    find_package(SDL2 REQUIRED)
-  endif(D2D_FOR_DARWIN AND D2D_FOR_POWERPC)
-  set(D2D_SYSTEM_SRC "${D2D_SDL2_SRC}")
-  set(D2D_SYSTEM_INCLUDE_DIR "${SDL2_INCLUDE_DIRS}")
-  set(D2D_SYSTEM_LIBRARY "${SDL2_LIBRARIES}")
-else(WITH_SDL)
+  if(D2D_FOR_EMSCRIPTEN)
+    set(D2D_SYSTEM_SRC "${D2D_SDL_SRC}")
+    set(D2D_SYSTEM_INCLUDE_DIR "")
+    set(D2D_SYSTEM_LIBRARY "-lSDL2")
+    set(D2D_SYSTEM_LINKFLAGS "-s USE_SDL=2")
+  else()
+    if(D2D_FOR_DARWIN AND D2D_FOR_POWERPC)
+      # tigerbrew did not provide sdl2 module for cmake
+      find_package(SDL2)
+      if(NOT SDL2_FOUND)
+        set(SDL2_INCLUDE_DIRS "/usr/local/include/SDL2")
+        set(SDL2_LIBRARIES "-lSDL2")
+      endif(NOT SDL2_FOUND)
+    else()
+      find_package(SDL2 REQUIRED)
+    endif()
+    set(D2D_SYSTEM_SRC "${D2D_SDL2_SRC}")
+    set(D2D_SYSTEM_INCLUDE_DIR "${SDL2_INCLUDE_DIRS}")
+    set(D2D_SYSTEM_LIBRARY "${SDL2_LIBRARIES}")
+  endif()
+else()
   message(FATAL_ERROR "Select SYSTEM_DRIVER as 'SDL' or 'SDL2'")
-endif(WITH_SDL)
+endif()
 
 if(WITH_STUBRENDER)
   set(D2D_RENDER_SRC "${D2D_STUBRENDER_SRC}")
   set(D2D_RENDER_INCLUDE_DIR "")
   set(D2D_RENDER_LIBRARY "")
 elseif(WITH_OPENGL)
-  find_package(OpenGL REQUIRED)
-  set(D2D_RENDER_SRC "${D2D_OPENGL_SRC}")
-  set(D2D_RENDER_INCLUDE_DIR "${OPENGL_INCLUDE_DIR}")
-  set(D2D_RENDER_LIBRARY "${OPENGL_LIBRARY}")  
+  if(D2D_FOR_EMSCRIPTEN)
+    set(D2D_RENDER_SRC "${D2D_OPENGL_SRC}")
+    set(D2D_RENDER_INCLUDE_DIR "")
+    set(D2D_RENDER_LIBRARY "-lGL")
+    set(D2D_RENDER_LINKFLAGS "-s LEGACY_GL_EMULATION=1")
+  else()
+    find_package(OpenGL REQUIRED)
+    set(D2D_RENDER_SRC "${D2D_OPENGL_SRC}")
+    set(D2D_RENDER_INCLUDE_DIR "${OPENGL_INCLUDE_DIR}")
+    set(D2D_RENDER_LIBRARY "${OPENGL_LIBRARY}")
+  endif()
 elseif(WITH_SOFTWARE)
   set(D2D_RENDER_SRC "${D2D_SOFTWARE_SRC}")
   set(D2D_RENDER_INCLUDE_DIR "")
   set(D2D_RENDER_LIBRARY "")
-else(WITH_STUBRENDER)
+else()
   message(FATAL_ERROR "Select RENDER_DRIVER as 'OPENGL' or 'SOFTWARE' or 'STUB'")
-endif(WITH_STUBRENDER)
+endif()
 
 if(WITH_STUBSOUND)
   set(D2D_SOUND_SRC "${D2D_STUBSOUND_SRC}")
@@ -119,4 +141,11 @@ message(STATUS "SOUND:  " "${SOUND_DRIVER}")
 
 add_executable(doom2d ${D2D_GAME_SRC} ${D2D_SYSTEM_SRC} ${D2D_RENDER_SRC} ${D2D_SOUND_SRC})
 target_include_directories(doom2d PRIVATE "${D2D_GAME_ROOT}" "${D2D_SYSTEM_INCLUDE_DIR}" "${D2D_RENDER_INCLUDE_DIR}" "${D2D_SOUND_INCLUDE_DIR}")
-target_link_libraries(doom2d "${D2D_SYSTEM_LIBRARY}" "${D2D_RENDER_LIBRARY}" "${D2D_SOUND_LIBRARY}")
+if(D2D_FOR_EMSCRIPTEN)
+  set(CMAKE_EXECUTABLE_SUFFIX ".html")
+  configure_file(${D2D_GAME_ROOT}/doom2d.wad doom2d.wad COPYONLY)
+  set(D2D_DOOM2D_WAD doom2d.wad)
+  set_target_properties(doom2d PROPERTIES LINK_FLAGS "-s WASM=0 -s DISABLE_EXCEPTION_CATCHING=1 -s SAFE_HEAP=1 -s ASSERTIONS=1 -s GL_ASSERTIONS=1 ${D2D_SYSTEM_LINKFLAGS} ${D2D_RENDER_LINKFLAGS} ${D2D_SOUND_LINKFLAGS} --preload-file ${D2D_DOOM2D_WAD}")
+else()
+  target_link_libraries(doom2d "${D2D_SYSTEM_LIBRARY}" "${D2D_RENDER_LIBRARY}" "${D2D_SOUND_LIBRARY}")
+endif()