# Makefile

CXX = g++
CXXFLAGS = -Wall -g -std=c++17
LIBS = $(shell pkg-config --cflags --libs wayland-client wayland-egl egl glesv2 xkbcommon)

# Wayland protocols
WAYLAND_PROTOCOLS_DIR = $(shell pkg-config --variable=pkgdatadir wayland-protocols)
WAYLAND_SCANNER = $(shell pkg-config --variable=wayland_scanner wayland-scanner)

XDG_SHELL_XML = $(WAYLAND_PROTOCOLS_DIR)/stable/xdg-shell/xdg-shell.xml

all: shader-demo

# Generate code from xml
xdg-shell-protocol.c:
	$(WAYLAND_SCANNER) private-code < $(XDG_SHELL_XML) > $@

xdg-shell-client-protocol.h:
	$(WAYLAND_SCANNER) client-header < $(XDG_SHELL_XML) > $@

# Compile rule
OBJS = main.o xdg-shell-protocol.o

%.o: %.c
	$(CC) -c -o $@ $< $(CFLAGS)

main.o: main.cpp xdg-shell-client-protocol.h
	$(CXX) -c -o $@ $< $(CXXFLAGS)

shader-demo: $(OBJS)
	$(CXX) -o $@ $(OBJS) $(LIBS)

clean:
	rm -f shader-demo *.o xdg-shell-protocol.c xdg-shell-client-protocol.h