Create CMakeLists.txt

Author: wtholliday

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.20)
+project(vger LANGUAGES C CXX OBJC OBJCXX)
+
+set(CMAKE_CXX_STANDARD 17)
+
+# Paths
+set(SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/Sources/vger")
+set(METAL_SRC "${SRC_DIR}/vger.metal")
+set(AIR_FILE "${CMAKE_CURRENT_BINARY_DIR}/vger.air")
+set(METALLIB_FILE "${CMAKE_CURRENT_BINARY_DIR}/vger.metallib")
+set(METALLIB_OBJ "${CMAKE_CURRENT_BINARY_DIR}/vger_metallib.cpp")
+
+# Collect source files (.cpp, .mm)
+file(GLOB_RECURSE VGER_SOURCES
+    "${SRC_DIR}/*.cpp"
+    "${SRC_DIR}/*.mm"
+)
+
+# Step 1: Compile .metal to .air
+add_custom_command(
+    OUTPUT ${AIR_FILE}
+    COMMAND xcrun -sdk macosx metal -c ${METAL_SRC} -o ${AIR_FILE}
+    DEPENDS ${METAL_SRC}
+    COMMENT "Compiling vger.metal to AIR"
+)
+
+# Step 2: Compile .air to .metallib
+add_custom_command(
+    OUTPUT ${METALLIB_FILE}
+    COMMAND xcrun -sdk macosx metallib ${AIR_FILE} -o ${METALLIB_FILE}
+    DEPENDS ${AIR_FILE}
+    COMMENT "Linking AIR to METALLIB"
+)
+
+# Step 3: Convert .metallib to C array using xxd
+add_custom_command(
+    OUTPUT ${METALLIB_OBJ}
+    COMMAND xxd -i ${METALLIB_FILE} > ${METALLIB_OBJ}
+    DEPENDS ${METALLIB_FILE}
+    COMMENT "Embedding metallib into C++ source"
+)
+
+# Custom target to ensure shader embedding is done first
+add_custom_target(EmbedShader ALL DEPENDS ${METALLIB_OBJ})
+
+# Step 4: Create dylib
+add_library(vger SHARED
+    ${VGER_SOURCES}
+    ${METALLIB_OBJ}
+)
+
+add_dependencies(vger EmbedShader)
+
+# Link necessary Apple frameworks
+target_link_libraries(vger
+    "-framework Foundation"
+    "-framework Metal"
+)
+
+# Optional: Make it rpath-loadable
+set_target_properties(vger PROPERTIES
+    MACOSX_RPATH ON
+    OUTPUT_NAME "vger"
+    INSTALL_NAME_DIR "@rpath"
+)
+