From 2c393b18513d9c5d0c96098833965e1aa4449a6d Mon Sep 17 00:00:00 2001
From: PlexSheep <software@cscherr.de>
Date: Thu, 19 Oct 2023 16:15:28 +0200
Subject: [PATCH] load shaders (broken)

---
 src/graphics.cpp | 26 +++++++++++++++++++++-----
 src/graphics.hpp |  1 +
 src/main.cpp     | 10 +++++++++-
 3 files changed, 31 insertions(+), 6 deletions(-)

diff --git a/src/graphics.cpp b/src/graphics.cpp
index fe50594..173f40e 100644
--- a/src/graphics.cpp
+++ b/src/graphics.cpp
@@ -18,7 +18,20 @@ string ShaderProgram::baseName() {
 }
 
 ShaderProgram::ShaderProgram(Base base, string vertexSource,
-                             string fragSource) {}
+                             string fragSource) {
+  BOOST_LOG_TRIVIAL(trace) << "creating empty shaders";
+  this->vertex = glCreateShader(GL_VERTEX_SHADER);
+  this->frag = glCreateShader(GL_FRAGMENT_SHADER);
+  BOOST_LOG_TRIVIAL(trace) << "loading vertex shader";
+  glShaderSource(this->vertex, 1, vertexSource.c_str(),
+                 NULL);
+  BOOST_LOG_TRIVIAL(trace) << "compiling vertex shader";
+  glCompileShader(this->vertex);
+  BOOST_LOG_TRIVIAL(trace) << "loading fragments shader";
+  glShaderSource(this->frag, 2, fragSource.c_str(), NULL);
+  BOOST_LOG_TRIVIAL(trace) << "compiling fragments shader";
+  glCompileShader(this->frag);
+}
 
 int ShaderProgram::run() { return 255; }
 
@@ -26,8 +39,7 @@ void framebuffer_size_callback(GLFWwindow *window, int width, int height) {
   glViewport(0, 0, width, height);
 }
 
-/* extended main function */
-int mainWindow(ShaderProgram* shaderProgram) {
+int initGl() {
   /* graphics stuff */
   glfwInit();
   glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
@@ -39,16 +51,20 @@ int mainWindow(ShaderProgram* shaderProgram) {
   if (window == NULL) {
     printf("Failed to create GLFW window\n");
     glfwTerminate();
-    return -1;
+    return EXIT_GL;
   }
   glfwMakeContextCurrent(window);
 
   if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
     printf("Failed to initialize GLAD\n");
-    return -1;
+    return EXIT_GL;
   }
 
   glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
+  return 0;
+}
+
+int mainWindow(ShaderProgram *shaderProgram) {
 
   int result = shaderProgram->run();
 
diff --git a/src/graphics.hpp b/src/graphics.hpp
index 253dee3..79b9ab4 100644
--- a/src/graphics.hpp
+++ b/src/graphics.hpp
@@ -18,4 +18,5 @@ protected:
   Base base;
 };
 int mainWindow(ShaderProgram* shaderProgramm);
+int initGl();
 #endif
diff --git a/src/main.cpp b/src/main.cpp
index e2f74c1..4ad11ae 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -5,6 +5,9 @@
 
 int main(int argc, char **argv) {
 
+  /* declarations */
+  int result = 0;
+
   /* Parsing CLI Arguments */
   po::options_description desc("Available options");
   desc.add_options()("help,h", "show help")("verbose,v", "more verbose output")(
@@ -46,6 +49,10 @@ int main(int argc, char **argv) {
     BOOST_LOG_TRIVIAL(trace) << "verbose flag found, setting log level to trace";
   }
 
+  /* init graphics stuff */
+  result = initGl();
+  if (result != 0) { return EXIT_GL;}
+
   /* setup the shader program */
   BOOST_LOG_TRIVIAL(trace) << "Reading shader files";
   ifstream vertexFileStream(vm["vert"].as<string>());
@@ -76,7 +83,8 @@ int main(int argc, char **argv) {
 
   /* Run our main program */
   BOOST_LOG_TRIVIAL(trace) << "Starting mainWindow";
-  int result = mainWindow(&shaderProgram);
+  result = mainWindow(&shaderProgram);
+  /* if (result != 0) { return EXIT_GL;} */
 
   return result;
 }