gl_err.cpp as of 2024-02-02

#include <SDL2/SDL.h>
#include <gl.hpp>




void gl::errClear(){
  while(glGetError() != GL_NO_ERROR);
}



const char* gl::errStr(Uint32 errorCode){
#if defined(_DEBUG)
  switch(errorCode){
  case GL_NO_ERROR                     : return "GL_NO_ERROR";
  case GL_INVALID_ENUM                 : return "GL_INVALID_ENUM";
  case GL_INVALID_VALUE                : return "GL_INVALID_VALUE";
  case GL_INVALID_OPERATION            : return "GL_INVALID_OPERATION";
  case GL_INVALID_FRAMEBUFFER_OPERATION: return "GL_INVALID_FRAMEBUFFER_OPERATION";
  case GL_OUT_OF_MEMORY                : return "GL_OUT_OF_MEMORY";
  case GL_STACK_UNDERFLOW              : return "GL_STACK_UNDERFLOW";
  case GL_STACK_OVERFLOW               : return "GL_STACK_OVERFLOW";
  default: return "(unknown error code)"; //should be impossible
  };
#else
  return "!defined(_DEBUG)";
#endif
}


#define NO_INFO "\b\b\b\b\b\b"

Uint32 gl::errLog(int lineNumber, Uint32 errorCode){
  if(errorCode == GL_NO_ERROR) errorCode = glGetError();
#if defined(_DEBUG)
  if(errorCode == GL_NO_ERROR) return errorCode;

  if(lineNumber >= 0){
    SDL_Log(NO_INFO"  Line %4i: %s (0x%08X)",
            lineNumber, gl::errStr(errorCode), errorCode);
  } else if(lineNumber == -1){
    SDL_Log(NO_INFO"  %s (0x%08X)", gl::errStr(errorCode), errorCode);
  }

#endif
  return errorCode;
}



void gl::errLogAll(int lineNumber, const char* fileName){
  Uint32 errorCode = gl::errLog(-2); //-2 for no print at all
  if(errorCode != GL_NO_ERROR){
    SDL_Log("%s : %4i:", fileName, lineNumber);
    gl::errLog(-1,errorCode);
    do {
      gl::errLog(-1);
    } while(errorCode != GL_NO_ERROR);
  }
}