directmusic.cpp

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#include "directmusic.h"
 
#include <stdexcept>
 
#include <Tempest/File>
#include <utils/fileutil.h>
#include <system_error>
#include <stdexcept>
 
using namespace Dx8;
 
DirectMusic::DirectMusic() {
  }
 
PatternList DirectMusic::load(const Segment &s) {
  return PatternList(s,*this);
  }
 
PatternList DirectMusic::load(const char16_t *fsgt) {
  Tempest::RFile fin = implOpen(fsgt);
  std::vector<uint8_t> v(size_t(fin.size()));
  fin.read(v.data(), v.size());
 
  auto r   = Dx8::Riff(v.data(), v.size());
  auto sgt = Dx8::Segment(r);
  return load(sgt);
  }
 
void DirectMusic::addPath(std::u16string p) {
  path.emplace_back(std::move(p));
  }
 
const Style &DirectMusic::style(const Reference &id) {
  for(auto& i:styles){
    if(i.first==id.file)
      return i.second;
    }
 
  Tempest::RFile fin = implOpen(id.file.c_str());
  const size_t length = fin.size();
 
  std::vector<uint8_t> data(length);
  fin.read(&data[0],data.size());
 
  Riff  r{data.data(),data.size()};
  Style stl(r);
 
  styles.emplace_back(id.file,std::move(stl));
  return styles.back().second;
  }
 
const DlsCollection &DirectMusic::dlsCollection(const Reference &id) {
  return dlsCollection(id.file);
  }
 
const DlsCollection &DirectMusic::dlsCollection(const std::u16string &file) {
  for(auto& i:dls){
    if(i->first==file)
      return i->second;
    }
  Tempest::RFile fin    = implOpen(file.c_str());
  const size_t   length = fin.size();
 
  std::vector<uint8_t> data(length);
  fin.read(reinterpret_cast<char*>(&data[0]),data.size());
 
  Riff          r{data.data(),data.size()};
  DlsCollection stl(r);
 
  dls.emplace_back(new std::pair<std::u16string,DlsCollection>(file,std::move(stl)));
  return dls.back()->second;
  }
 
Tempest::RFile DirectMusic::implOpen(const char16_t *file) {
  for(auto& pt:path) {
    try {
      std::u16string filepath = FileUtil::nestedPath(pt, {file}, Tempest::Dir::FT_File);
      Tempest::RFile fin(filepath);
      return fin;
      }
    catch(std::system_error&){
      }
    }
  throw std::runtime_error("file not found");
  }