| 25 | static std::array<SoundEntry, ORIGINAL_SAMPLE_COUNT> _original_sounds; |
| 26 | |
| 27 | static void OpenBankFile(const std::string &filename) |
| 28 | { |
| 29 | /** |
| 30 | * The sound file for the original sounds, i.e. those not defined/overridden by a NewGRF. |
| 31 | * Needs to be kept alive during the game as _original_sounds[n].file refers to this. |
| 32 | */ |
| 33 | static std::unique_ptr<RandomAccessFile> original_sound_file; |
| 34 | |
| 35 | _original_sounds.fill({}); |
| 36 | |
| 37 | /* If there is no sound file (nosound set), don't load anything */ |
| 38 | if (filename.empty()) return; |
| 39 | |
| 40 | original_sound_file = std::make_unique<RandomAccessFile>(filename, BASESET_DIR); |
| 41 | size_t pos = original_sound_file->GetPos(); |
| 42 | uint count = original_sound_file->ReadDword(); |
| 43 | |
| 44 | /* The new format has the highest bit always set */ |
| 45 | auto source = HasBit(count, 31) ? SoundSource::BasesetNewFormat : SoundSource::BasesetOldFormat; |
| 46 | ClrBit(count, 31); |
| 47 | count /= 8; |
| 48 | |
| 49 | /* Simple check for the correct number of original sounds. */ |
| 50 | if (count != ORIGINAL_SAMPLE_COUNT) { |
| 51 | /* Corrupt sample data? Just leave the allocated memory as those tell |
| 52 | * there is no sound to play (size = 0 due to calloc). Not allocating |
| 53 | * the memory disables valid NewGRFs that replace sounds. */ |
| 54 | Debug(misc, 6, "Incorrect number of sounds in '{}', ignoring.", filename); |
| 55 | return; |
| 56 | } |
| 57 | |
| 58 | original_sound_file->SeekTo(pos, SEEK_SET); |
| 59 | |
| 60 | /* Read sound file positions. */ |
| 61 | for (auto &sound : _original_sounds) { |
| 62 | sound.file = original_sound_file.get(); |
| 63 | sound.file_offset = GB(original_sound_file->ReadDword(), 0, 31) + pos; |
| 64 | sound.file_size = original_sound_file->ReadDword(); |
| 65 | sound.source = source; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | static bool SetBankSource(MixerChannel *mc, SoundEntry *sound, SoundID sound_id) |
| 70 | { |