mirror of https://github.com/AxioDL/amuse.git
134 lines
4.2 KiB
C++
134 lines
4.2 KiB
C++
#include "amuse/AudioGroupProject.hpp"
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#include "amuse/Common.hpp"
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#include <stdint.h>
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namespace amuse
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{
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enum class GroupType : uint16_t
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{
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Song,
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SFX
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};
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struct GroupHeader
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{
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uint32_t groupEndOff;
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uint16_t groupId;
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GroupType type;
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uint32_t soundMacroIdsOff;
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uint32_t samplIdsOff;
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uint32_t tableIdsOff;
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uint32_t keymapIdsOff;
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uint32_t layerIdsOff;
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uint32_t pageTableOff;
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uint32_t drumTableOff;
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uint32_t midiSetupsOff;
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void swapBig()
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{
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groupEndOff = SBig(groupEndOff);
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groupId = SBig(groupId);
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type = GroupType(SBig(uint16_t(type)));
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soundMacroIdsOff = SBig(soundMacroIdsOff);
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samplIdsOff = SBig(samplIdsOff);
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tableIdsOff = SBig(tableIdsOff);
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keymapIdsOff = SBig(keymapIdsOff);
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layerIdsOff = SBig(layerIdsOff);
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pageTableOff = SBig(pageTableOff);
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drumTableOff = SBig(drumTableOff);
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midiSetupsOff = SBig(midiSetupsOff);
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}
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};
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AudioGroupProject::AudioGroupProject(const unsigned char* data)
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{
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const GroupHeader* group = reinterpret_cast<const GroupHeader*>(data);
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while (group->groupEndOff != 0xffffffff)
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{
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GroupHeader header = *group;
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header.swapBig();
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AudioGroupIndex* bIdx = nullptr;
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if (header.type == GroupType::Song)
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{
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SongGroupIndex& idx = m_songGroups[header.groupId];
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bIdx = &idx;
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/* Normal pages */
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const SongGroupIndex::PageEntry* normEntries =
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reinterpret_cast<const SongGroupIndex::PageEntry*>(data + header.pageTableOff);
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while (normEntries->objId != 0xffff)
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{
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idx.m_normPages[normEntries->programNo] = normEntries;
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++normEntries;
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}
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/* Drum pages */
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const SongGroupIndex::PageEntry* drumEntries =
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reinterpret_cast<const SongGroupIndex::PageEntry*>(data + header.drumTableOff);
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while (drumEntries->objId != 0xffff)
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{
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idx.m_drumPages[drumEntries->programNo] = drumEntries;
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++drumEntries;
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}
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/* MIDI setups */
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const uint8_t* setupData = data + header.midiSetupsOff;
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const uint8_t* setupEnd = data + header.groupEndOff;
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while (setupData < setupEnd)
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{
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uint16_t songId = SBig(*reinterpret_cast<const uint16_t*>(setupData));
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idx.m_midiSetups[songId] =
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reinterpret_cast<const std::array<SongGroupIndex::MIDISetup, 16>*>(setupData + 4);
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setupData += 5 * 16 + 4;
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}
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}
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else if (header.type == GroupType::SFX)
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{
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SFXGroupIndex& idx = m_sfxGroups[header.groupId];
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bIdx = &idx;
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/* SFX entries */
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uint16_t count = SBig(*reinterpret_cast<const uint16_t*>(data + header.pageTableOff));
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idx.m_sfxEntries.reserve(count);
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const SFXGroupIndex::SFXEntry* entries =
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reinterpret_cast<const SFXGroupIndex::SFXEntry*>(data + header.pageTableOff + 4);
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for (int i=0 ; i<count ; ++i)
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{
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idx.m_sfxEntries[SBig(entries->defineId)] = entries;
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++entries;
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}
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}
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if (bIdx)
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{
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bIdx->m_soundMacroIndex = reinterpret_cast<const uint16_t*>(data + header.soundMacroIdsOff);
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bIdx->m_tablesIndex = reinterpret_cast<const uint16_t*>(data + header.tableIdsOff);
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bIdx->m_keymapsIndex = reinterpret_cast<const uint16_t*>(data + header.keymapIdsOff);
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bIdx->m_layersIndex = reinterpret_cast<const uint16_t*>(data + header.layerIdsOff);
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}
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group = reinterpret_cast<const GroupHeader*>(data + header.groupEndOff);
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}
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}
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const SongGroupIndex* AudioGroupProject::getSongGroupIndex(int groupId) const
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{
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auto search = m_songGroups.find(groupId);
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if (search == m_songGroups.cend())
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return nullptr;
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return &search->second;
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}
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const SFXGroupIndex* AudioGroupProject::getSFXGroupIndex(int groupId) const
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{
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auto search = m_sfxGroups.find(groupId);
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if (search == m_sfxGroups.cend())
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return nullptr;
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return &search->second;
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}
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}
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