boost logger

.gitignore

@@ -5,3 +5,4 @@ CMakeDoxygenDefaults.cmake
 Makefile
 cmake_install.cmake
 bin/loader/loader
+lib/glfw

CMakeLists.txt

@@ -30,7 +30,7 @@ source_group("sources" FILES ${PROJECT_SOURCES})
 source_group("vendors" FILES ${VENDORS_SOURCES})
 
 find_package(Boost 1.56 REQUIRED COMPONENTS
-             program_options)
+             program_options log)
 
 set(EXE_1_NAME loader)
 file(
@@ -41,7 +41,7 @@ set(CMAKE_BINARY_DIR "bin")
 
 add_executable(${EXE_1_NAME} ${EXE_1_SOURCES} ${PROJECT_HEADERS}
                              ${PROJECT_SHADERS} ${VENDORS_SOURCES})
-target_link_libraries(${EXE_1_NAME} glfw Boost::program_options)
+target_link_libraries(${EXE_1_NAME} glfw Boost::program_options Boost::log)
 target_include_directories(${EXE_1_NAME} PRIVATE include)
 set_target_properties(${EXE_1_NAME} PROPERTIES
                       RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${EXE_1_NAME})

src/graphics.cpp

@@ -1,11 +1,13 @@
 #include <glad/glad.c>
 // glad must be loaded before GLFW
 #include "graphics.hpp"
+#include "main.hpp"
 
 #include <iostream>
 
 using namespace std;
 
+/* class ShaderProgram Implementations */
 string ShaderProgram::baseName() {
   switch (this->base) {
   case Empty:
@@ -24,6 +26,7 @@ void framebuffer_size_callback(GLFWwindow *window, int width, int height) {
   glViewport(0, 0, width, height);
 }
 
+/* extended main function */
 int mainWindow(ShaderProgram* shaderProgram) {
   /* graphics stuff */
   glfwInit();

src/main.cpp

@@ -1,4 +1,3 @@
-
 #include <fstream>
 #include <iostream>
 
@@ -33,16 +32,16 @@ int main(int argc, char **argv) {
       return 1;
     }
   } catch (po::error &e) {
-    cout << e.what() << endl << endl;
+    BOOST_LOG_TRIVIAL(fatal) << e.what() << endl << endl;
     help(argv[0], desc);
     return EXIT_USAGE;
   }
 
-  if (vm.count("verbose")) {
-    printf("verbose!");
-  }
-
   /* setup the shader program */
+  if (vm.count("verbose")) {
+    // TODO: make verbose flag somehow global?
+    printf("Reading shader files\n");
+  }
   ifstream vertexFileStream(vm["vert"].as<string>());
   ifstream fragFileStream(vm["frag"].as<string>());
   std::stringstream vertexSource;
@@ -51,20 +50,28 @@ int main(int argc, char **argv) {
   fragSource << fragFileStream.rdbuf();
 
   if (vertexFileStream.fail()) {
-    cout << "Error while reading the vertex shader file." << endl;
+    BOOST_LOG_TRIVIAL(fatal) << "Error while reading the vertex shader file." << endl;
     return EXIT_IO;
   }
-  if (fragFileStream.fail()) {
+  if (!fragFileStream.fail()) {
-    cout << "Error while reading the frag shader file." << endl;
+    BOOST_LOG_TRIVIAL(fatal) << "Error while reading the frag shader file." << endl;
     return EXIT_IO;
   }
   vertexFileStream.close();
   fragFileStream.close();
 
+  if (vm.count("verbose")) {
+    printf("Creating ShaderProgram\n");
+  }
+
+  // TODO: determinde ShaderProgram::Base with a CLI arg
   ShaderProgram shaderProgram(ShaderProgram::Base::Empty, vertexSource.str(),
                               fragSource.str());
 
   /* Run our main program */
+  if (vm.count("verbose")) {
+    printf("Starting mainWindow\n");
+  }
   int result = mainWindow(&shaderProgram);
 
   return result;
@@ -81,6 +88,7 @@ void help(char *prog, po::options_description desc) {
        << "1\tGeneric Failure"
        << "2\tBad arguments"
        << "3\tI/O Error" << endl
+       << "3\tOpenGL Error" << endl
        << endl
        << desc << endl;
   // NOTE: constants for the error codes are defined in main.hpp

src/main.hpp

@@ -1,13 +1,17 @@
+#ifndef MAIN_HPP
+#define MAIN_HPP
 #include <boost/program_options.hpp>
 #include <boost/program_options/parsers.hpp>
 #include <boost/program_options/positional_options.hpp>
 #include <boost/program_options/variables_map.hpp>
+#include <boost/log/trivial.hpp>
 
 #include "graphics.hpp"
 
 // EXIT_FAILURE and EXIT_SUCCESS are defined in cstdlib
 const int EXIT_USAGE = 2;
 const int EXIT_IO = 3;
+const int EXIT_GL = 4;
 
 namespace po = boost::program_options;
 using namespace std;
@@ -15,3 +19,4 @@ using namespace std;
 int main(int argc, char **argv);
 
 void help(char *prog, po::options_description desc);
+#endif