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default: targets
CC=emcc
CXX=em++
LEX=lex
ECHO=$(shell which echo)
STRING_RESOURCE_CC = shell_scripts/fastuidraw-create-resource-cpp-file.sh
# When building projects that use libFatUIDraw, these emscripten flags are
# required; also add to one's compile flags -Isome/path where some/path is
# the location of the incldue files from fastuidaw; for example when building
# the demos, the value -Iinc is added.
FASTUIDRAW_EMSCRIPTEN_LIBS=-s FORCE_FILESYSTEM=1 -s EXIT_RUNTIME=1 -s USE_WEBGL2=1 -s FULL_ES2=1 -s FULL_ES3=1 -s USE_FREETYPE=1 -s ALLOW_MEMORY_GROWTH=1
FASTUIDRAW_EMSCRIPTEN_BASE_FLAGS=-DFASTUIDRAW_GL_USE_GLES -std=c++11
FASTUIDRAW_EMSCRIPTEN_DEBUG_FLAGS=$(FASTUIDRAW_EMSCRIPTEN_BASE_FLAGS) -g -DFASTUIDRAW_DEBUG
FASTUIDRAW_EMSCRIPTEN_RELEASE_FLAGS=$(FASTUIDRAW_EMSCRIPTEN_BASE_FLAGS) -O3
# The build of FastUIdraw scans a GL header to generate
# its ngl-header file, this requires that the host tool-chain
# is used to generate the scanner and header-file creator
HOST_CC=cc
HOST_CXX=c++
NGL_GENERATOR_FLAGS=-DNOGLFUNCTION_POINTERS
NGL_BUILD = emscripten_build/ngl_generator
# Automatically use GLES3/gl3.h from the EMSDK
# Note that the ngl-header for Emscripten builds
# is different than that of the GLES builds; this
# allows one to have Emscripten and normal builds
# to coexist.
EMSDK_LOCATION=$(shell $(ECHO) $(EMSDK))
EMSDK_INCLUDEPATH=$(EMSDK_LOCATION)/fastcomp/emscripten/system/include/
GL_INCLUDEPATH=$(EMSDK_INCLUDEPATH)
GLES_RAW_HEADER_FILES=GLES3/gl3.h
NGL_GLES_CPP = src/fastuidraw/gl_backend/ngl_emscripten_gles3.cpp
NGL_GLES_HPP = inc/fastuidraw/gl_backend/ngl_emscripten_gles3.hpp
# Location of demo-assets
ASSET_FLAGS=--preload-file demo_data
###########################
## clean to track build files
clean = string_resources_cpp emscripten_build $(NGL_GLES_CPP) $(NGL_GLES_HPP)
######################################
# Reuse the Rules.mk system to collect the source files
filelist = $(foreach filename,$(1),$(d)/$(filename))
DEMOS:=
COMMON_DEMO_SOURCES:=
FASTUIDRAW_SOURCES:=
FASTUIDRAW_PRIVATE_SOURCES:=
FASTUIDRAW_GL_SOURCES:=
FASTUIDRAW_PRIVATE_GL_SOURCES:=
NGL_COMMON_SRCS:=
FASTUIDRAW_RESOURCE_STRING:=
FASTUIDRAW_GL_RESOURCE_STRING:=
dir := src
include $(dir)/Rules.mk
dir := demos
include $(dir)/Rules.mk
######################################
# Recipe to build FastUIDraw libraries
FASTUIDRAW_LIB_RESOURCE_STRING:=$(FASTUIDRAW_RESOURCE_STRING) $(FASTUIDRAW_GL_RESOURCE_STRING)
FASTUIDRAW_LIB_RESOURCE_SRCS = $(patsubst %.resource_string, string_resources_cpp/%.resource_string.cpp, $(FASTUIDRAW_LIB_RESOURCE_STRING) )
FASTUIDRAW_LIB_SOURCES:=$(FASTUIDRAW_SOURCES) $(FASTUIDRAW_PRIVATE_SOURCES) $(FASTUIDRAW_GL_SOURCES) $(FASTUIDRAW_PRIVATE_GL_SOURCES) $(NGL_COMMON_SRCS) $(NGL_GLES_CPP) $(FASTUIDRAW_LIB_RESOURCE_SRCS)
FASTUIDRAW_LIB_RAW_OBJS:=$(patsubst %.cpp, %.bc, $(FASTUIDRAW_LIB_SOURCES))
FASTUIDRAW_LIB_DEBUG_OBJS:=$(addprefix emscripten_build/debug/fastuidraw/, $(FASTUIDRAW_LIB_RAW_OBJS))
FASTUIDRAW_LIB_RELEASE_OBJS:=$(addprefix emscripten_build/release/fastuidraw/, $(FASTUIDRAW_LIB_RAW_OBJS))
FASTUIDRAW_BUILD_INCLUDES=-Isrc/fastuidraw/internal -Isrc/fastuidraw/internal/3rd_party -Iinc
FASTUIDRAW_BUILD_DEBUG_FLAGS=$(FASTUIDRAW_EMSCRIPTEN_LIBS) $(FASTUIDRAW_BUILD_INCLUDES) $(FASTUIDRAW_EMSCRIPTEN_DEBUG_FLAGS)
FASTUIDRAW_BUILD_RELEASE_FLAGS=$(FASTUIDRAW_EMSCRIPTEN_LIBS) $(FASTUIDRAW_BUILD_INCLUDES) $(FASTUIDRAW_EMSCRIPTEN_RELEASE_FLAGS)
emscripten_build/debug/fastuidraw/%.bc: %.cpp $(NGL_GLES_HPP)
@mkdir -p $(dir $@)
$(CXX) $(FASTUIDRAW_BUILD_DEBUG_FLAGS) $< -o $@
emscripten_build/release/fastuidraw/%.bc: %.cpp $(NGL_GLES_HPP)
@mkdir -p $(dir $@)
$(CXX) $(FASTUIDRAW_BUILD_RELEASE_FLAGS) $< -o $@
string_resources_cpp/%.resource_string.cpp: %.resource_string
@mkdir -p $(dir $@)
$(STRING_RESOURCE_CC) $< $(notdir $<) $(dir $@)
libFastUIDraw-emscripten-debug.bc: $(FASTUIDRAW_LIB_DEBUG_OBJS)
$(CXX) $(FASTUIDRAW_BUILD_DEBUG_FLAGS) $(FASTUIDRAW_LIB_DEBUG_OBJS) -o $@
libFastUIDraw-emscripten-release.bc: $(FASTUIDRAW_LIB_RELEASE_OBJS)
$(CXX) $(FASTUIDRAW_BUILD_RELEASE_FLAGS) $(FASTUIDRAW_LIB_RELEASE_OBJS) -o $@
libFastUIDraw-emscripten-debug: libFastUIDraw-emscripten-debug.bc
libFastUIDraw-emscripten-release: libFastUIDraw-emscripten-release.bc
libFastUIDraw-emscripten: libFastUIDraw-emscripten-debug libFastUIDraw-emscripten-release
.PHONY: libFastUIDraw-emscripten-debug libFastUIDraw-emscripten-release libFastUIDraw-emscripten
clean += libFastUIDraw-emscripten-debug.bc libFastUIDraw-emscripten-release.bc
clean += $(NGL_GLES_CPP) $(NGL_GLES_HPP)
########################
## Recipe to build demos
DEMO_INCLUDE_FLAGS=-Idemos/common -Iinc
ENCRIPTEN_DEMO_LIBS=-s USE_SDL=2 -s USE_SDL_IMAGE=2 $(FASTUIDRAW_EMSCRIPTEN_LIBS)
DEMO_DEBUG_FLAGS=$(FASTUIDRAW_EMSCRIPTEN_DEBUG_FLAGS) $(DEMO_INCLUDE_FLAGS) $(ENCRIPTEN_DEMO_LIBS)
DEMO_RELEASE_FLAGS=$(FASTUIDRAW_EMSCRIPTEN_RELEASE_FLAGS) $(DEMO_INCLUDE_FLAGS) $(ENCRIPTEN_DEMO_LIBS)
COMMON_DEMO_OBJS_RAW=$(patsubst %.cpp, %.bc, $(COMMON_DEMO_SOURCES))
COMMON_DEMO_DEBUG_OBJS:=$(addprefix emscripten_build/debug/demo/, $(COMMON_DEMO_OBJS_RAW))
COMMON_DEMO_RELEASE_OBJS:=$(addprefix emscripten_build/release/demo/, $(COMMON_DEMO_OBJS_RAW))
emscripten_build/debug/demo/%.bc: %.cpp $(NGL_GLES_HPP)
@mkdir -p $(dir $@)
$(CXX) $(DEMO_DEBUG_FLAGS) $< -o $@
emscripten_build/release/demo/%.bc: %.cpp $(NGL_GLES_HPP)
@mkdir -p $(dir $@)
$(CXX) $(DEMO_RELEASE_FLAGS) $< -o $@
define demorule
$(eval THISDEMO_$(1)_DEBUG_OBJS:=$$(COMMON_DEMO_DEBUG_OBJS) $$(addprefix emscripten_build/debug/demo/, $$(patsubst %.cpp, %.bc, $$($(1)_SOURCES)))
$(1)-debug.html: $$(THISDEMO_$(1)_DEBUG_OBJS) libFastUIDraw-emscripten-debug.bc
$(CXX) $(ASSET_FLAGS) $(DEMO_DEBUG_FLAGS) $$(THISDEMO_$(1)_DEBUG_OBJS) libFastUIDraw-emscripten-debug.bc -o $$@
THISDEMO_$(1)_RELEASE_OBJS:=$(COMMON_DEMO_RELEASE_OBJS) $$(addprefix emscripten_build/release/demo/, $$(patsubst %.cpp, %.bc, $$($(1)_SOURCES)))
$(1)-release.html: $$(THISDEMO_$(1)_RELEASE_OBJS) libFastUIDraw-emscripten-release.bc
$(CXX) $(ASSET_FLAGS) $(DEMO_RELEASE_FLAGS) $$(THISDEMO_$(1)_RELEASE_OBJS) libFastUIDraw-emscripten-release.bc -o $$@
$(1)-debug:$(1)-debug.html
$(1)-release:$(1)-release.html
$(1):$(1)-debug $(1)-release
.PHONY: $(1) $(1)-debug $(1)-release
demos-debug:$(1)-debug.html
demos-release:$(1)-release.html
clean+=$(1)-debug.* $(1)-release.*
)
endef
$(foreach demoname,$(DEMOS),$(call demorule,$(demoname)))
targets:
@echo "Individual Demos avaliable (each having a -release -debug speficic target):"
@printf " %s\n" $(DEMOS)
.PHONY: targets
all:demos
.PHONE:all
demos: demos-debug demos-release
.PHONY: demos demos-debug demos-release
common: common-debug common-release
common-debug: $(COMMON_DEBUG_OBJS)
common-release: $(COMMON_RELEASE_OBJS)
.PHONY:common common-debug common-release
clean:
rm -rf $(clean)