static void load_bagObjects(BagObject *bo, int &count) {
uint16 totalSize = loadInt16();
uint8 *bagData = (uint8 *)malloc(totalSize);
if (bagData) {
loadStr(bagData, totalSize);
count = loadInt16();
assert(count <= Game::NUM_BAG_OBJECTS);
uint16 bagObjectsOffset[Game::NUM_BAG_OBJECTS + 1];
for (int i = 0; i < count; ++i) {
bagObjectsOffset[i] = loadInt16();
loadStr(bo[i].name, 20);
}
for (int i = 0; i < count; ++i) {
int dataSize = (i == count - 1) ? totalSize : bagObjectsOffset[i + 1];
dataSize -= bagObjectsOffset[i];
bo[i].data = (uint8 *)malloc(dataSize);
if (bo[i].data) {
memcpy(bo[i].data, bagData + bagObjectsOffset[i], dataSize);
bo[i].dataSize = dataSize;
}
}
free(bagData);
}
}
static void saveOrLoadStr(char *s, int16 len = -1) {
bool countTermChar = (len == -2); // deal with original buggy file format...
bool storeLen = (len < 0);
if (storeLen) {
len = strlen(s);
if (countTermChar) {
++len;
}
saveOrLoadInt16(len);
}
switch (_saveOrLoadMode) {
case kSaveMode:
saveStr(s, len);
break;
case kLoadMode:
loadStr(s, len);
if (storeLen) {
s[len] = 0;
}
break;
}
}
TrackFrames buildTrackFramesFromMidi(const std::string& filename)
{
TrackFrames trackFrames;
FILE* pFic;
fopen_s(&pFic, filename.c_str(), "rb");
// Load header
struct HeaderChunk
{
char HThd[4];
uint32_t size;
uint16_t format;
uint16_t nbTrack;
uint16_t division;
} headerChunk;
loadStr(headerChunk.HThd, 4, pFic);
headerChunk.size = load32(pFic);
headerChunk.format = load16(pFic);
headerChunk.nbTrack = load16(pFic);
headerChunk.division = load16(pFic);
uint32_t maxTime = 0;
std::set<int> channelSet;
//int midiToChannels[] = { // mario
// 5, 0, 1, 2,
// 5, 5, 5, 5,
// 5, 5, 5, 5,
// 5, 5, 5, 5,
//};
//int midiToChannels[] = { // sm2
// 0, 2, 1, 5,
// 5, 5, 5, 5,
// 5, 3, 5, 5,
// 5, 5, 5, 5,
//};
int midiToChannels[] = {
0, 1, 2, 5,
5, 5, 5, 5,
5, 5, 5, 5,
5, 5, 5, 5,
};
//int midiToChannels[] = { // zelda
// 0, 1, 2, 5,
// 5, 5, 5, 5,
// 5, 3, 5, 5,
// 5, 5, 5, 5,
//};
// Load tracks
for (auto i = 0u; i < headerChunk.nbTrack; ++i)
{
char MTrk[4];
loadStr(MTrk, 4, pFic);
auto len = load32(pFic);
auto start = ftell(pFic);
auto cur = start;
uint32_t curTime = 0;
while (cur - start < static_cast<decltype(cur)>(len))
{
auto v_time = loadLength(pFic);
auto event = load8(pFic);
curTime += v_time;// / (headerChunk.division / 24);
maxTime = std::max(maxTime, curTime);
trackFrames.resize(maxTime * 4 + 16);
if (event == 0xFF)
{
// Meta event
event = load8(pFic);
if (event == 0x58)
{
// Time Signature
event = load8(pFic);
assert(event == 0x04);
load32(pFic); // Ignore who f*****g cares
}
else if (event == 0x7F)
{
// Sequencer Specific Meta-Event
auto dataLen = load8(pFic); // Len, ignore
while (dataLen)
{
load8(pFic);
--dataLen;
}
}
else if (event == 0x51)
{
// Set Tempo
event = load8(pFic);
assert(event == 0x03);
load8(pFic);
load8(pFic);
load8(pFic);
}
else if (event == 0x2F)
{
// End of Track
event = load8(pFic);
assert(event == 0x00);
}
else if (event == 0x03)
{
// Sequence/Track Name
auto textLen = load8(pFic);
char text[257] = {0};
loadStr(text, textLen, pFic);
printf("Track found: %i, %s\n", i, text);
}
else if (event == 0x59)
{
// Key Signature
event = load8(pFic);
assert(event == 0x02);
auto sf = load8(pFic);
auto mi = load8(pFic);
}
else if (event == 0x21)
{
// End of Track
event = load8(pFic);
assert(event == 0x01);
load8(pFic);
}
else if (event == 0x20)
{
// MIDI Channel Prefix
event = load8(pFic);
assert(event == 0x01);
auto channel = load8(pFic);
}
else
{
assert(false);
}
}
else if (event & 0x80)
{
auto channelNo = event & 0x0F;
channelSet.insert(channelNo);
if (channelNo < sizeof(midiToChannels) / sizeof(int)) channelNo = midiToChannels[channelNo];
event = event & 0xF0;
if (event == 0xB0)
{
// Control Change
auto controllerNumber = load8(pFic) & 0x7F;
auto controllerValue = load8(pFic) & 0x7F;
}
else if (event == 0xC0)
{
// Program Change
auto programNumber = load8(pFic) & 0x7F;
}
else if (event == 0x90)
{
// Note On event
auto note = load8(pFic) & 0x7F;
auto vol = load8(pFic) & 0x7F;
if (channelNo < 3)
{
auto& trackFrame = trackFrames[curTime * 4 + channelNo];
trackFrame = NOTE(noteTable[note], channelNo, (vol * 15) / 127);
}
else if (channelNo == 3)
{
auto& trackFrame = trackFrames[curTime * 4 + channelNo];
trackFrame = NOTE(noteTable[note + 12], channelNo, (vol * 15) / 127);
}
}
else if (event == 0x80)
{
// Note Off event
auto note = load8(pFic) & 0x7F;
auto vol = load8(pFic) & 0x7F;
if (channelNo == 2)
{
//auto& trackFrame = trackFrames[curTime * 4 + channelNo];
//trackFrame = NOTE(noteTable[note + 12], channelNo, 0);
}
if (channelNo == 3)
{
auto& trackFrame = trackFrames[curTime * 4 + channelNo];
trackFrame = NOTE(noteTable[note], channelNo, 0);
}
}
else if (event == 0xE0)
{
// Pitch Wheel Change
auto l = load8(pFic) & 0x7F;
auto m = load8(pFic) & 0x7F;
}
else
{
assert(false);
}
}
else if (event <= 0x7F)
{
load8(pFic);
}
else
{
assert(false);
}
cur = ftell(pFic);
}
}
fclose(pFic);
for (auto& channelNo : channelSet)
{
printf("%i\n", channelNo);
}
return trackFrames;
}
