OGL4ShaderPtr OGL4ShaderCompiler::CreateShaderFromFile(SHADER_TYPE type, const boost::filesystem::path& path, const std::string& entry)
{
std::string source = LoadShaderSource(path.string());
if(source == "")
{
return OGL4ShaderPtr();
}
std::vector<IncludeInfo> inc_list;
IncludeInfo inc;
inc.file = path;
inc.lines = GetSourceLines(source);
inc_list.push_back(inc);
source = ProcessInclude(path.parent_path(), source, inc_list);
inc_list.push_back(inc);
inc_list.erase(inc_list.begin());
source = ClearVersionComment(source);
return CreateShaderFromSource(type, source, inc_list, entry);
}
void SlicSegment::GetDescription(char *str, sint32 maxsize)
{
if(m_firstLineNumber < 0) {
sint32 offset, lastline;
GetSourceLines(m_firstLineNumber, offset, lastline);
}
sprintf(str, "'%s': %s@%d", m_id, m_filename, m_firstLineNumber);
}
std::string OGL4ShaderCompiler::ProcessInclude(const boost::filesystem::path& basePath, const std::string& source, std::vector<IncludeInfo>& inc_list)
{
std::vector<IncludeInfo> include_list = ExtractIncludeList(source);
if(include_list.size() == 0)
{
return source;
}
std::string ret = "";
for(size_t i = 0; i < include_list.size(); ++i)
{
bool included = false;
for(auto v : inc_list)
{
if((basePath / v.file) == (basePath / include_list[i].file))
{
included = true;
break;
}
}
if(included)
{
continue;
}
std::string inc_source = LoadShaderSource(basePath / include_list[i].file);
include_list[i].lines = GetSourceLines(inc_source);
ret += ProcessInclude(basePath, inc_source, inc_list) + "\n";
inc_list.push_back(include_list[i]);
}
ret += source;
return ret;
}
