Merge pull request #171 from JdeRobot/refactor-sim-code

Refactor sim code

Author: dlobato

.gitignore

@@ -13,4 +13,7 @@
 
 debug.log
 
-.vscode
+.vscode
+obj_dir
+*.fst
+imgui.ini

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "utils/poc_verilator_simulation/sim/third_party/imgui"]
-	path = sim_fpga/sim/third_party/imgui
+	path = third_party/imgui
 	url = https://github.com/ocornut/imgui.git

sim_fpga/examples/example1/Makefile

@@ -0,0 +1,67 @@
+MKFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
+SIM_DIR := $(realpath $(dir $(MKFILE_PATH))/../..)
+PROJECT_DIR := $(realpath $(SIM_DIR)/..)
+IMGUI_DIR = $(PROJECT_DIR)/third_party/imgui
+EXAMPLE_DIR = $(SIM_DIR)/examples/example1
+SIM_INC_DIR = $(SIM_DIR)/include
+RTL_DIR = $(EXAMPLE_DIR)/rtl
+INC_DIR = $(EXAMPLE_DIR)/include
+SRC_DIR = $(EXAMPLE_DIR)/src
+ASSETS_DIR := $(SRC_DIR)
+SOURCES = $(SRC_DIR)/input_driver.cpp $(SRC_DIR)/output_monitor.cpp $(SRC_DIR)/main.cpp
+SOURCES += $(SIM_DIR)/src/gl_texture_utils.cpp
+SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
+SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl3.cpp
+HEADERS = $(INC_DIR)/
+V_SOURCES = $(RTL_DIR)/design_top.v
+UNAME_S := $(shell uname -s)
+LINUX_GL_LIBS = -lGL
+
+CXXFLAGS = -I$(INC_DIR) -I$(SIM_INC_DIR) -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends -DASSETS_DIR=\\\"$(ASSETS_DIR)\\\" -g
+LIBS =
+
+##---------------------------------------------------------------------
+## BUILD FLAGS PER PLATFORM
+##---------------------------------------------------------------------
+
+ifeq ($(UNAME_S), Linux) #LINUX
+	ECHO_MESSAGE = "Linux"
+	LIBS += $(LINUX_GL_LIBS) -ldl `sdl2-config --libs` `pkg-config --libs opencv4`
+
+	CXXFLAGS += `sdl2-config --cflags` `pkg-config --cflags opencv4`
+	CFLAGS = $(CXXFLAGS)
+endif
+
+ifeq ($(UNAME_S), Darwin) #APPLE
+	ECHO_MESSAGE = "Mac OS X"
+	LIBS += -framework OpenGL -framework Cocoa -framework IOKit -framework CoreVideo `sdl2-config --libs`
+	LIBS += -L/usr/local/lib -L/opt/local/lib
+
+	CXXFLAGS += `sdl2-config --cflags`
+	CXXFLAGS += -I/usr/local/include -I/opt/local/include
+	CFLAGS = $(CXXFLAGS)
+endif
+
+ifeq ($(OS), Windows_NT)
+    ECHO_MESSAGE = "MinGW"
+    LIBS += -lgdi32 -lopengl32 -limm32 `pkg-config --static --libs sdl2`
+
+    CXXFLAGS += `pkg-config --cflags sdl2`
+    CFLAGS = $(CXXFLAGS)
+endif
+
+##---------------------------------------------------------------------
+## BUILD RULES
+##---------------------------------------------------------------------
+
+all: obj_dir/Vdesign_top
+	@echo Build complete for $(ECHO_MESSAGE)
+
+obj_dir/Vdesign_top.h: $(V_SOURCES)
+	verilator --cc $(V_SOURCES) -x-assign unique --trace-fst -CFLAGS "$(CXXFLAGS)" --exe $(SOURCES) -I$(RTL_DIR)
+
+obj_dir/Vdesign_top: obj_dir/Vdesign_top.h $(SOURCES)
+	make -j 4 -C obj_dir/ -f Vdesign_top.mk Vdesign_top LIBS="$(LIBS)"
+
+clean:
+	rm -rf obj_dir