doubleray/Makefile

WASM raytracer

.PHONY: wasm all important clean e


wasm: out/ray.wasm

all: test_png test_parse test_refl test_vec test_orbit wasm

important: wasm test_png



HPP_FILES = \
src/RayEngine.hpp \
src/Vec3.hpp \
src/Poly.hpp \
src/Matrix.hpp \
src/fileio.h \
src/Material.hpp \
src/Ray.hpp \
src/Parser.hpp \
src/RayApi.hpp \
src/json.hpp \
src/Macros.hpp \
src/JsApi.hpp \
src/Vec.hpp \
src/lodepng.h \
src/HandlePng.hpp

WASM_MAIN = src/main2.cpp

CPP_FILES = \
src/Vec3.cpp \
src/Poly.cpp \
src/Matrix.cpp \
src/RayEngine.cpp \
src/fileio.cpp \
src/Material.cpp \
src/Ray.cpp \
src/Parser.cpp \
src/RayApi.cpp \
src/Vec.cpp \
src/lodepng.cpp \
src/HandlePng.cpp

# WASM only cpp files
WASM_CPP_FILES = \
src/JsApi.cpp

# this is a list of all C functions we want to publish to javascript
# In the main cpp file, each of these is wrapped in extern "C" {}
# the version here has a prepended underscore
# all lines must have trailing comma
EXPORT_STRING = \
"_setupEngine", \
"_onRuntimeInitialized", \
"_onCustomMessage", \
"_renderNextRainbow", \
"_coutInt", \
"_coutIntDual", \
"_doRenderOfficial", \
"_setCamera", \
"_setDepth", \
"_setAmbientColor", \
"_setGlobalC", \
"_setSphere", \
"_setSphereCount", \
"_setLightCount", \
"_setLight", \
"_dumpPoly", \
"_setupOrbit", \
"_nextOrbitRender", \
"_dumpCamera", \
"_chokeOutput", \
"_setPrint", \
"_setNoHitColor", \
"_setHighlightPixel", \
"_parseJsonScene", \
"_setRefractShadows", \
"_setEnableShadows", \
"_setEnableAlpha", \
"_debugCallback", \
"_setPrintRenderTime", \
"_setPrintRotCamera", \
"_setScale",

TEMPLATE_FILE = template/proxy_controls.html
JS_TEMPLATE_FILE = template/pre.ray.js

ifdef EXTRACT_HTML_TEMPLATE
  TEMPLATE_FILE = template/extract_script_template.html
endif

# this is a full command, put in your make body to mark wasm dirty for next build
MARK_WASM_DIRTY=touch src/main2.cpp # force make to run again if "make all" is run next

# warning and error flags
CLANG_WARN_FLAGS = \
-Wall -Wextra \
-Wno-ignored-qualifiers \
-Wundef \
-Werror=return-type
# -Wconversion
# -Wshadow

CLANG_O_FLAG = '-O3'

ifdef NOOPT
  CLANG_O_FLAG = ' '
endif

ifdef OPT3
  CLANG_O_FLAG = '-O3'
endif

# works however adds 100ms or more to the
# render time
#-s DISABLE_EXCEPTION_CATCHING=0 \

# don't need this until we get poly working
#--preload-file 'root_fs'
out/ray.wasm: $(WASM_MAIN) $(CPP_FILES) $(HPP_FILES) $(WASM_CPP_FILES) $(TEMPLATE_FILE) $(JS_TEMPLATE_FILE) Makefile
	emcc $(WASM_MAIN) $(WASM_CPP_FILES) $(CPP_FILES) -s WASM=1 -o out/ray.html \
	--shell-file $(TEMPLATE_FILE) \
	--proxy-to-worker \
	-s ALLOW_MEMORY_GROWTH=1 \
	--pre-js $(JS_TEMPLATE_FILE) \
	-s EXPORTED_FUNCTIONS='[$(EXPORT_STRING) "_main"]' \
	-s EXTRA_EXPORTED_RUNTIME_METHODS='["ccall", "cwrap"]' \
	'-std=c++2a' $(CLANG_O_FLAG) $(CLANG_WARN_FLAGS)

# this target doesn't actually exist
.PHONY: out/empty

e: out/empty

out/empty:  $(TEMPLATE_FILE) $(JS_TEMPLATE_FILE) Makefile
	emcc src/Empty.cpp -s WASM=1 -o out/ray.html \
	--shell-file $(TEMPLATE_FILE) \
	--proxy-to-worker \
	-s ALLOW_MEMORY_GROWTH=1 \
	--pre-js $(JS_TEMPLATE_FILE) \
	-s EXPORTED_FUNCTIONS='["_main"]' \
	-s EXTRA_EXPORTED_RUNTIME_METHODS='["ccall", "cwrap"]' \
	'-std=c++2a' $(CLANG_O_FLAG) $(CLANG_WARN_FLAGS)
	$(MARK_WASM_DIRTY)


# We want to get the global html that emscripten dumps in the script tag
# see https://unix.stackexchange.com/questions/446410/reverse-file-character-by-character-using-tac
# this head/tail version only work on the NOOPT output
out/doubleRayBridge.js:
	$(MARK_WASM_DIRTY) && NOOPT=1 EXTRACT_HTML_TEMPLATE=1 make e && $(MARK_WASM_DIRTY)
	cat out/ray.html | tail -c+9 | head -c-11  > out/doubleRayBridge.js





# '-Wshadow-all'
#--proxy-to-worker \
#-s PROXY_TO_WORKER_FILENAME='custom.ray' \

# not working due to chrome not liking these options
#-s USE_PTHREADS=1 -s RESERVED_FUNCTION_POINTERS=1
#-s PTHREAD_POOL_SIZE=4

.PHONY: copy_files_target copy copy_fs copy_scenes

copy: copy_files_target copy_fs copy_scenes



# I forget how to copy file and do the sensativity list thing correctly
# so for now this needs to be manual

COPY_LIST = \
template/jquery-3.4.1.min.js \
template/LoadSave.js \
template/GIFEncoder.js \
template/LZWEncoder.js \
template/NeuQuant.js \
template/b64.js \
template/doubleRayInstantiate.js \
template/doubleRayControls.js


# copy files required to compile the project (js etc)
copy_files_target:
	cp $(COPY_LIST) out/



FS_COPY_LIST = \
models/scene2.txt \
models/unit_cube.txt \
models/scenep5.txt \
models/1tri.txt \
models/1triB.txt

# copy files which will act as the root filesystem
copy_fs:
	mkdir -p root_fs
	cp $(FS_COPY_LIST) root_fs/

copy_scenes:
	mkdir -p out/scenes
	cp scenes/*.json out/scenes



# files need only for test or desktop builds (aka not WASM builds)

HPP_TEST_FILES =


CPP_TEST_FILES =



test_orbit2: src/test_orbit.cpp $(CPP_FILES) $(HPP_FILES) Makefile
	g++ test_orbit.cpp $(CPP_FILES) -o $@

test_parse2: src/test_parse.cpp $(CPP_FILES) $(HPP_FILES) Makefile
	g++ $< $(CPP_FILES) -std=c++17  -g -o $@


# $< name of first prerequisite
# $@ name of target
test_orbit: src/test_orbit.cpp $(CPP_FILES) $(HPP_FILES) Makefile
	clang++ $(CLANG_WARN_FLAGS) -std=c++2a $< $(CPP_FILES) -g -o $@

test_vec: src/test_vec.cpp $(CPP_FILES) $(HPP_FILES) Makefile
	clang++ $(CLANG_WARN_FLAGS) -std=c++2a $< $(CPP_FILES) -g -o $@


test_refl: src/test_refl.cpp $(CPP_FILES) $(HPP_FILES) Makefile
	clang++ $(CLANG_WARN_FLAGS) -std=c++2a $< $(CPP_FILES) -g -o $@


test_parse: src/test_parse.cpp $(CPP_FILES) $(HPP_FILES) Makefile
	clang++ $(CLANG_WARN_FLAGS) -std=c++2a $< $(CPP_FILES) -g -o $@

test_ang: src/test_ang.cpp $(CPP_FILES) $(HPP_FILES) Makefile
	clang++ $(CLANG_WARN_FLAGS) -std=c++2a $< $(CPP_FILES) -g -o $@



test_png: src/test_png.cpp $(CPP_FILES) $(HPP_FILES) $(HPP_TEST_FILES) $(CPP_TEST_FILES) Makefile
	clang++ $(CLANG_WARN_FLAGS) -std=c++2a $< $(CPP_FILES) $(CPP_TEST_FILES) -O3 -o $@


.PHONY: test

test: test_png
	./test_png -a -g


.PHONY: rmtest movetestideal rmideal

rmtest: 
	rm -rf img/test/*.png

rmideal: 
	rm -rf img/ideal/*.png

movetestideal: rmideal
	mv img/test/*.png img/ideal/


clean:
	rm -rf out/*
	rm -rf dist/*


.PHONY: build_publish copy_to_dist

copy_to_dist: dist/ray.wasm

PUBLISH_COPY = \
out/ray.wasm \
out/ray.js \
out/doubleRayInstantiate.js \
out/doubleRayControls.js \
out/doubleRayBridge.js


# copy everything we need over to dist
dist/ray.wasm: out/ray.wasm out/ray.js
	mkdir -p dist
	cp $(PUBLISH_COPY) dist/

build_publish: copy out/doubleRayBridge.js dist/ray.wasm