Add simple web backend

CMakeLists.txt

@@ -55,8 +55,8 @@ if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
 
     find_package(SDL2 REQUIRED)
 
-    set(ENABLE_WINDOWS ON)
-    set(ENABLE_VULKAN ON)
+    set(ENABLE_WINDOWS TRUE)
+    set(ENABLE_VULKAN TRUE)
 endif()
 
 if(${CMAKE_SYSTEM_NAME} STREQUAL "WindowsStore")
@@ -65,6 +65,13 @@ if(${CMAKE_SYSTEM_NAME} STREQUAL "WindowsStore")
     set(ENABLE_UWP TRUE)
 endif()
 
+if(${CMAKE_SYSTEM_NAME} STREQUAL "Emscripten")
+    message("Web build detected!")
+
+    set(ENABLE_WEB TRUE)
+    set(ENABLE_WEBGPU TRUE)
+endif()
+
 set(CROSS_LIBS
     spirv-cross-core
     spirv-cross-glsl

cmake/BuildShaders.cmake

@@ -35,7 +35,7 @@ endfunction()
 
 # add shaders to target
 function(add_shaders)
-    if(NOT ENABLE_IOS AND NOT ENABLE_TVOS)
+    if(NOT ENABLE_IOS AND NOT ENABLE_TVOS AND NOT ENABLE_WEB)
         cmake_parse_arguments(ARGS "" "TARGET" "SHADERS" ${ARGN})
 
         foreach(SHADER_FILENAME ${ARGS_SHADERS})

platforms/CMakeLists.txt

@@ -17,3 +17,7 @@ endif()
 if(ENABLE_TVOS)
 	add_subdirectory(tvos)
 endif()
+
+if(ENABLE_WEB)
+	add_subdirectory(web)
+endif()

platforms/web/CMakeLists.txt

@@ -0,0 +1,34 @@
+include(../../cmake/AddPlatformExecutable.cmake)
+
+add_platform(
+        MAIN_FILE
+        main.cpp.in
+        LINK_LIBRARIES
+        Core
+)
+
+function(add_platform_commands target)
+    set_target_properties(
+            ${target}
+            PROPERTIES
+            SUFFIX ".html"
+    )
+
+    set(DUMMY_NAME ${target}-CopyShaders)
+
+    add_custom_target(${DUMMY_NAME} ALL DEPENDS ${CMAKE_BINARY_DIR}/${target}-dummy)
+
+    if(ENABLE_MACOS)
+        add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/${target}-dummy
+                COMMAND ${CMAKE_COMMAND} -E make_directory $<TARGET_FILE_DIR:${target}>/../Resources/shaders
+                COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_BINARY_DIR}/shaders $<TARGET_FILE_DIR:${target}>/../Resources/shaders
+                )
+    else()
+        add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/${target}-dummy
+                COMMAND ${CMAKE_COMMAND} -E make_directory $<TARGET_FILE_DIR:${target}>/shaders
+                COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_BINARY_DIR}/shaders $<TARGET_FILE_DIR:${target}>/shaders
+                )
+    endif()
+
+    add_dependencies(${target} ${DUMMY_NAME})
+endfunction()

platforms/web/main.cpp.in

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main(int argc, char* argv[]) {
+    printf("Hello, world!\n");
+
+    return 0;
+}