shadersdir = $(datarootdir)/shaders
SLANGC = slangc

bin_PROGRAMS = engine
shaders_PROGRAMS = shader.spv

engine_SOURCES = \
	engine.cpp \
	renderer.hpp renderer.cpp \
	obj_parser.hpp obj_parser.cpp \
	vulkan_utils.hpp \
	stb_image.c \
	fb/chfb.hpp fb/chfb.cpp fb/pixfb.hpp fb/pixfb.cpp \
	math/utils.hpp \
	math/vector.hpp \
	math/mat4.hpp \
	math/quat.hpp \
	math/tform.hpp \
	o3d/mesh.hpp o3d/mesh.cpp \
	o3d/obj3d.hpp \
	o3d/vertex_data.hpp \
	o3d/vertex.hpp \
	o3d/deriv_vertex.hpp \
	o3d/tri.hpp \
	o3d/tri_deriv.hpp \
	o3d/polygon.hpp \
	o3d/camera.hpp \
	o3d/scene.hpp \
	ctrl/keyboard.hpp \
	ctrl/mouse.hpp

# TODO: we should somehow pass assetsdir and texturesdir from ../Makefile.am to this Makefile.am.
# We assume that they will always be relative to datadir, which might not be true if they are
# configured differently
engine_CPPFLAGS = -std=gnu++23 -Wall -Wextra \
	-DDATADIR='"$(datadir)"' -DSHADERSDIR='"$(shadersdir)"' \
	$(GLFW3_CFLAGS) $(STB_CFLAGS) $(VULKAN_CFLAGS)
engine_LDFLAGS  = -std=gnu++23 -Wall -Wextra
engine_LDADD    = $(GLFW3_LIBS) $(STB_LIBS) $(VULKAN_LIBS)

if HAVE_NCURSES
engine_CPPFLAGS += $(NCURSES_CFLAGS)
engine_LDADD    += $(NCURSES_LIBS)
endif

shader_spv_SOURCES = shaders/shader.slang
shader_spv_SPVFLAGS = -target spirv -profile spirv_1_4 -emit-spirv-directly -fvk-use-entrypoint-name -entry vert_main -entry frag_main

shader.spv$(EXEEXT): shaders/shader.slang
	$(SLANGC) $(shader_spv_SPVFLAGS) -o $@ $<