Implement vulkan backend

justfile

@@ -3,9 +3,28 @@
 
 default: build
 
-# Build the project
+CC       := "clang"
+CXX      := "clang++"
+VK_FLAGS := "-DVK_NO_PROTOTYPES -I$VULKAN_SDK/include -I$VULKAN_SDK/include/vma"
+BUILDDIR := "build"
+
+# Build the project (object files only — no entry point yet)
 build:
-	@echo "TODO: implement build"
+	mkdir -p {{BUILDDIR}}
+	{{CXX}} -g -c -Wno-nullability-completeness {{VK_FLAGS}} \
+		src/prism/rhi/vulkan/profiles/vulkan_profiles.cpp \
+		-o {{BUILDDIR}}/vulkan_profiles.o
+	{{CXX}} -g -c -Wno-nullability-completeness {{VK_FLAGS}} \
+		src/prism/rhi/vulkan/pr_rhi_vk_vma.cpp \
+		-o {{BUILDDIR}}/pr_rhi_vk_vma.o
+	{{CC}} -g -c {{VK_FLAGS}} $VULKAN_SDK/include/volk/volk.c -o {{BUILDDIR}}/volk.o
+	{{CC}} -g -c {{VK_FLAGS}} src/prism/rhi/vulkan/pr_rhi_vk.c -o {{BUILDDIR}}/pr_rhi_vk.o
+	{{CC}} -g -c src/wapp/wapp.c -o {{BUILDDIR}}/wapp.o
+	@echo "--- build done (objects in {{BUILDDIR}}/) ---"
+
+# Clean object files
+clean:
+	rm -rf {{BUILDDIR}}
 
 # Run linter / typecheck
 lint: