mirror of
https://github.com/OpenMW/openmw.git
synced 2025-10-27 03:26:38 +00:00
69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
#ifndef SH_PREPROCESSOR_H
|
|
#define SH_PREPROCESSOR_H
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include <cstdio>
|
|
#include <ostream>
|
|
#include <string>
|
|
#include <algorithm>
|
|
|
|
#include <boost/assert.hpp>
|
|
#include <boost/config.hpp>
|
|
|
|
#include <boost/wave/cpp_throw.hpp>
|
|
#include <boost/wave/cpp_exceptions.hpp>
|
|
#include <boost/wave/token_ids.hpp>
|
|
#include <boost/wave/util/macro_helpers.hpp>
|
|
#include <boost/wave/preprocessing_hooks.hpp>
|
|
|
|
namespace sh
|
|
{
|
|
/**
|
|
* @brief A simple interface for the boost::wave preprocessor
|
|
*/
|
|
class Preprocessor
|
|
{
|
|
public:
|
|
/**
|
|
* @brief Run a shader source string through the preprocessor
|
|
* @param source source string
|
|
* @param includePath path to search for includes (that are included with #include)
|
|
* @param definitions macros to predefine (vector of strings of the format MACRO=value, or just MACRO to define it as 1)
|
|
* @param name name to use for error messages
|
|
* @return processed string
|
|
*/
|
|
static std::string preprocess (std::string source, const std::string& includePath, std::vector<std::string> definitions, const std::string& name);
|
|
};
|
|
|
|
|
|
|
|
class emit_custom_line_directives_hooks
|
|
: public boost::wave::context_policies::default_preprocessing_hooks
|
|
{
|
|
public:
|
|
|
|
template <typename ContextT, typename ContainerT>
|
|
bool
|
|
emit_line_directive(ContextT const& ctx, ContainerT &pending,
|
|
typename ContextT::token_type const& act_token)
|
|
{
|
|
// emit a #line directive showing the relative filename instead
|
|
typename ContextT::position_type pos = act_token.get_position();
|
|
unsigned int column = 1;
|
|
|
|
typedef typename ContextT::token_type result_type;
|
|
|
|
// no line directives for now
|
|
pos.set_column(column);
|
|
pending.push_back(result_type(boost::wave::T_GENERATEDNEWLINE, "\n", pos));
|
|
|
|
return true;
|
|
}
|
|
};
|
|
|
|
|
|
}
|
|
|
|
#endif
|