/// Compile this shader.
///
/// Will terminate program on failure.
void compile() const
{
#if defined(USE_LD)
std::string pretty_source = this->str();
const GLchar *pretty_source_c_str = pretty_source.c_str();
dnload_glShaderSource(m_id, 1, &pretty_source_c_str, NULL);
#else
dnload_glShaderSource(m_id, m_parts.size(), const_cast<const GLchar**>(m_parts.getData()), NULL);
#endif
dnload_glCompileShader(m_id);
#if defined(USE_LD)
std::string log = GlslShaderSource::get_shader_info_log(m_id);
if(0 < log.length())
{
std::cout << GlslShaderSource::string_add_line_numbers(pretty_source) << std::endl;
std::cout << log << std::endl;
}
if(!GlslShaderSource::get_shader_compile_status(m_id))
{
teardown();
exit(1);
}
#endif
}
/// Update this element buffer into the GPU.
///
/// Empty data will not be updated.
///
/// \param data Data to update.
void update(const seq<uint16_t> &data) const
{
if(!data)
{
return;
}
#if 0
for(unsigned ii = 0; (ii < data.size()); ii += 3)
{
std::cout << data[ii] << ", " << data[ii + 1] << ", " << data[ii + 2] << std::endl;
}
#endif
bind();
dnload_glBufferData(GL_ELEMENT_ARRAY_BUFFER, data.getSizeBytes(), data.getData(), GL_STATIC_DRAW);
#if defined(USE_LD)
vgl::increment_data_size_index(data.getSizeBytes());
#endif
}