nochat1205 / opengl-learn-work

opengl练习

opengl-vscode-win-env

windows 下 vscode 配置 OpenGL 开发环境

信息

• windows 需安装 MinGW, install gcc、g++、gdb 和 mingw32-make

• vscode 插件 C/C++、C/C++ Project Generator

• glfw 下载 Windows pre-compiled binaries

• glad 生成静态库

  gcc ./src/glad.c -c -I ./include/
  ar -rc libglad.a glad.o
  

• glm 复制到 include 目录下

• imgui 复制到 include 目下,Makefile 中添加以下命令

  # define the C source files
  SOURCES		:= $(wildcard $(patsubst %,%/*.cpp, $(SOURCEDIRS)))
  SOURCES	+= include/imgui/imgui_impl_glfw.cpp include/imgui/imgui_impl_opengl3.cpp
  SOURCES	+= include/imgui/imgui.cpp include/imgui/imgui_demo.cpp include/imgui/imgui_draw.cpp include/imgui/imgui_widgets.cpp

• assimp 下载已编译好的文件 Assimp3-1-1_MinGW4-8-1_Win32.zip

• Makefile

  #
  # 'make'        build executable file 'main'
  # 'make clean'  removes all .o and executable files
  #
  
  # define the Cpp compiler to use
  CXX = g++
  
  # define any compile-time flags
  CXXFLAGS	:= -std=c++17 -Wall -Wextra -g
  
  # define library paths in addition to /usr/lib
  #   if I wanted to include libraries not in /usr/lib I'd specify
  #   their path using -Lpath, something like:
  LFLAGS =
  
  # define output directory
  OUTPUT	:= output
  
  # define source directory 运行时修改此处路径
  SRC		:= src/$(dir) #// 传递 var 变量定义执行文件目录
  
  # define include directory
  INCLUDE	:= include
  
  # define lib directory
  LIB		:= lib
  LIBRARIES	:= -lglad -lglfw3dll -llibassimp
  
  ifeq ($(OS),Windows_NT)
  MAIN	:= main.exe
  SOURCEDIRS	:= $(SRC)
  INCLUDEDIRS	:= $(INCLUDE)
  LIBDIRS		:= $(LIB)
  FIXPATH = $(subst /,/,$1)
  RM			:= del /q a/f
  MD	:= mkdir
  else
  MAIN	:= main
  SOURCEDIRS	:= $(shell find $(SRC) -type d)
  INCLUDEDIRS	:= $(shell find $(INCLUDE) -type d)
  LIBDIRS		:= $(shell find $(LIB) -type d)
  FIXPATH = $1
  RM = rm -f
  MD	:= mkdir -p
  endif
  
  # define any directories containing header files other than /usr/include
  INCLUDES	:= $(patsubst %,-I%, $(INCLUDEDIRS:%/=%))
  
  # define the C libs
  LIBS		:= $(patsubst %,-L%, $(LIBDIRS:%/=%))
  
  # define the C source files
  SOURCES		:= $(wildcard $(patsubst %,%/*.cpp, $(SOURCEDIRS)))
  SOURCES	+= include/imgui/imgui_impl_glfw.cpp include/imgui/imgui_impl_opengl3.cpp
  SOURCES	+= include/imgui/imgui.cpp include/imgui/imgui_demo.cpp include/imgui/imgui_draw.cpp include/imgui/imgui_widgets.cpp
  
  # define the C object files
  OBJECTS		:= $(SOURCES:.cpp=.o)
  
  #
  # The following part of the makefile is generic; it can be used to
  # build any executable just by changing the definitions above and by
  # deleting dependencies appended to the file from 'make depend'
  #
  
  OUTPUTMAIN	:= $(call FIXPATH,$(OUTPUT)/$(MAIN))
  
  all: $(OUTPUT) $(MAIN)
    @echo Executing 'all' complete!
  
  $(OUTPUT):
    $(MD) $(OUTPUT)
  
  $(MAIN): $(OBJECTS)
    $(CXX) $(CXXFLAGS) $(INCLUDES) -o $(OUTPUTMAIN) $(OBJECTS) $(LFLAGS) $(LIBS) $(LIBRARIES)
  
  # this is a suffix replacement rule for building .o's from .c's
  # it uses automatic variables $<: the name of the prerequisite of
  # the rule(a .c file) and $@: the name of the target of the rule (a .o file)
  # (see the gnu make manual section about automatic variables)
  .cpp.o:
    $(CXX) $(CXXFLAGS) $(INCLUDES) -c $<  -o $@
  
  .PHONY: clean
  clean:
    $(RM) $(OUTPUTMAIN)
    $(RM) $(call FIXPATH,$(OBJECTS))
    @echo Cleanup complete!
  run: all
    ./$(OUTPUTMAIN)
    @echo Executing 'run: all' complete!

示例

1. Run

执行命令

make run dir=01_test_glfw

2. Debug

需要设置调试一个文件 修改 tasks.json下面的条目

 "label": "build",
  "type": "shell",
  "group": {
      "kind": "build",
      "isDefault": true
  },
  "windows": {
      "command": "powershell",
      "args": [
          "-c",
          "make dir=01_test_glfw", // 调式 01_test_glfw/main.cpp
      ]
  },