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);
}