Exemple #1
0
void
ShaderPrivate::
compile(void)
{
  if(m_shader_ready)
    {
      return;
    }

  //now do the GL work, create a name and compile the source code:
  assert(m_name == 0);

  m_shader_ready = true;
  m_name = glCreateShader(m_shader_type);

  const char *sourceString[1];
  sourceString[0] = m_source_code.c_str();


  glShaderSource(m_name, //shader handle
                 1, //number strings
                 sourceString, //array of strings
                 NULL); //lengths of each string or NULL implies each is 0-terminated

  glCompileShader(m_name);

  GLint logSize(0), shaderOK;
  std::vector<char> raw_log;

  //get shader compile status and log length.
  glGetShaderiv(m_name, GL_COMPILE_STATUS, &shaderOK);
  glGetShaderiv(m_name, GL_INFO_LOG_LENGTH, &logSize);

  //retrieve the compile log string, eh gross.
  raw_log.resize(logSize+2,'\0');
  glGetShaderInfoLog(m_name, //shader handle
                     logSize+1, //maximum size of string
                     NULL, //GLint* return length of string
                     &raw_log[0]); //char* to write log to.

  m_compile_log = &raw_log[0];
  m_compile_success = (shaderOK == GL_TRUE);

  if(!m_compile_success)
    {
      std::ostringstream oo;

      oo << "bad_shader_" << m_name << ".glsl";

      std::ofstream eek(oo.str().c_str());
      eek << m_source_code
          << "\n\n"
          << m_compile_log;
    }

}
static void bar(void *db) {
  eek(s);
}